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+----------------------------------------------------------------------------------------
+Scheduled Release 8.2402.0 (aka 2024.02) 2024-02-27
+- 2024-02-26: add DTLS support
+ This version comes with the initial implementation of imdtls and omdtls.
+ These modules permit secure message exchange over UDP.
+- 2024-02-26: testbench: make omusrmsg-noabort test more reliable
+ The previous test did not always detect an abort of rsyslog/omusrmsg.
+ The detection method has now been improved, so it is far more
+ probable that an abort is detected.
+ While doing this, we noticed that the omusrmsg-noabort-legacy test was
+ now a 100% duplicate. There is no need any longer to check pure legacy
+ syntax, and so that test has been removed.
+ We also added a valgrind-based test ofr omusrmsg-noabort, which furthers
+ strengthens bug detection. Most importantly, it helps us to detect
+ potentially new memory leaks on all CI platforms (in case the lib
+ behaves differently depending on os/distro).
+ see also https://github.com/rsyslog/rsyslog/issues/5294
+- 2024-02-26: omusrmsg bugfix: potential double free, which can cause segfault
+ omusrmsg frees a string which points to OS/system library memory. When
+ the os/libs clean up, it frees the memory as well. This results in a
+ double free. This bug interestingly seems to go unnoticed in many cases.
+ But it can cause a segfault or hard-to-trace memory corruptions which
+ could lead to other problems later on. The outcome of this bug most
+ probably depdns on os/library versions.
+ closes https://github.com/rsyslog/rsyslog/issues/5294
+- 2024-02-26: ommysql bugfix: potential segfault on database error
+ Due to an invalid code path, ommysql may cause a segfault if database
+ transactions fail into a specific way. The main trigger is a totally
+ irrecoverrable database error which can lead to premature connection
+ close, which is not checked for in all recover code.
+ This was detected in a setting where a stored procedure is called that
+ rolls back a transaction in itself.
+ This patch fixes the issue.
+ closes https://github.com/rsyslog/rsyslog/issues/5288
+- 2024-02-26: omfile: do not carry out actual action when writing to /dev/null
+ In some use cases omfile is configured to write to /dev/null. This seems
+ primarily be done because of statistics gathering but maybe some other
+ scenarios. We now add conditional logic to not do any actual omfile
+ action when the target file is /dev/null.
+ Note: this check only works on static file names. When /dev/null is
+ evaluated as part of dynafile, it will be handled just in the regular
+ case like before this patch.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2312.0 (aka 2023.12) 2023-12-12
+- 2023-12-11: imjournal: Add new input module parameter 'defaulttag'
+ The DefaultTag option specifies the default value for the tag field.
+ In imjournal, this can happen when one of the following is missing:
+ * identifier string provided by the application (SYSLOG_IDENTIFIER)
+ * name of the process the journal entry originates from (_COMM)
+ Thanks to Attila Lakatos for the patch.
+- 2023-12-08: core bugfix: rsyslog messages may not always have FQDN
+ Even if hostname FQDN is configured, rsyslog internal messages generated
+ after rsyslog startup and before the first HUP will not necessarily have
+ FQDN but instead only the shortname of the local host. This commit
+ fixes the situation.
+ Special thanks to github user eciii for doing a great bug analysis
+ and helping us considerably to fix the issue.
+ closes https://github.com/rsyslog/rsyslog/issues/5218
+- 2023-12-08: omlibdbi regression fix: database path was not properly used
+ Commit 4a072d6c93015a63716c49a6c7756df22750086a caused a regression that made
+ the database path unreliable to use. Depending on platform/libc version the
+ basename was improperly extracted, which made access to the database of sqllite
+ impossible.
+ Thanks to Flávio Tapajós for the patch.
+ closes: https://github.com/rsyslog/rsyslog/issues/5282
+- 2023-12-06: mazureeventhubs: Corrected handling of transport closed failures
+ - Added test for connection interrupts (requires root)
+ - Corrected handling of PN_TRANSPORT_CLOSED.
+ - Make sure Connection is being reestablished trough tryResume
+ - Enhanced Debug log output
+ closes: https://github.com/rsyslog/rsyslog/issues/5269
+- 2023-11-24: imkmsg: add params "readMode" and "expectedBootCompleteSeconds"
+ These parameters permit to control when imkmsg reads the full
+ kernel log upon startup.
+ Parameter "readMode" provides the following options:
+ * full-boot - (default) read full klog, but only "immediately" after
+ boot. "Immediately" is hereby meant in seconds of system
+ uptime given in "expectedBootCompleteSeconds"
+ * full-always - read full klog on every rsyslog startup. Most
+ probably causes messag duplication
+ * new-only - never emit existing kernel log message, read only
+ new ones.
+ Note that some message loss can happen if rsyslog is stopped
+ in "full-boot" and "new-only" read mode. The longer rsyslog is
+ inactive, the higher the message loss probability and potential
+ number of messages lost. For typical restart scenarios, this
+ should be minimal. On HUP, no message loss occurs as rsyslog
+ is not actually stopped.
+ The default value for "expectedBootCompleteSeconds" is 90.
+ see also https://github.com/rsyslog/rsyslog/issues/5161
+- 2023-11-10: imkmsg: add module param parseKernelTimestamp
+ The parameter permits to select whether or not and when kernel
+ timestamps shall parsed, that is be used as the actual time a
+ log message occurs.
+ This permits to work around problems with the way kernel
+ timestamps are represented. The reasoning is given in a sysklogd
+ commit by Joachim Wiberg, which we reproduce below ("QUOTE") to
+ have a stable reference.
+ The commit itself can be found for example at:
+ https://github.com/troglobit/sysklogd/commit/9f6fbb3301e571d8af95f8d771469291384e9e95
+ The new parameter parseKernelTimestamp has three possible modes:
+ "startup" - uses the kernel time stamp during the initial read
+ loop of /dev/kmsg, but replaced it later ignores it for later reads.
+ This is the DEFAULT setting.
+ "on" - kernel timestamps are always used and no correction is tried
+ "off" - kernel timestamps are never used, system time is used instead
+ Note that there this is a slightly breaking change. Previously, imkmsg
+ reported similar to "off" mode, now it reports by default in "startup"
+ mode. We consider this acceptable, as "off" mode timestamps are not
+ correct for startup. After startup, the behaviour is correct. All in
+ all, the new default is kind of a bugfix.
+ ============== QUOTE ===============
+ The spec[1] says the /dev/kmsg timestamp is a monotonic clock and in
+ microseconds. After a while you realize it's also relative to the boot
+ of the system, that fact was probably too obvious to be put in the spec.
+ However, what's *not* in the spec, and what takes a while to realize, is
+ that this monotonic time is *not* adjusted for suspend/resume cycles ...
+ On a frequently used laptop this can manifest itself as follows. The
+ kernel is stuck on Nov 15, and for the life of me I cannot find any to
+ adjust for this offset:
+ $ dmesg -T |tail -1; date
+ [Mon Nov 15 01:42:08 2021] wlan0: Limiting TX power to 23 (23 - 0) dBm as advertised by 18:e8:29:55:b0:62
+ Tue 23 Nov 2021 05:20:53 PM CET
+ Hence this patch. After initial "emptying" of /dev/kmsg when syslogd
+ starts up, we raise a flag (denoting done with backlog), and after this
+ point we ignore the kernel's idea of time and replace it with the actual
+ time we have now, the same that userspace messages are logged with.
+ Sure, there will be occasions where there's a LOT of kernel messages to
+ read and we won't be able to keep track. Yet, this patch is better than
+ the current state (where we log Nov 15).
+ [1]: https://www.kernel.org/doc/Documentation/ABI/testing/dev-kmsg
+ ===========END QUOTE ===============
+ closes https://github.com/rsyslog/rsyslog/issues/4561
+ closes https://github.com/rsyslog/rsyslog/issues/5161
+- 2023-11-07: imfile bugfix: remove state file on file delete
+ The state file would remain in the working directory
+ after shutdown, even though deleteStateOnfileDelete is
+ set to "on" and the monitored file was removed.
+ closes https://github.com/rsyslog/rsyslog/issues/5258
+ Thanks to Attila Lakatos for the patch.
+- 2023-10-31: TLS subsystem: fix small memory leak on startup
+ This was a one-time leak of the file name that hapened if a certificate file
+ was not accessible. It had no operational issues, but could confuse automatted
+ testing. As not only a side-effect, certificate load failures are now somewhat
+ more verbosely reported, which we consider helpful to the user.
+ Thanks to Attila Lakatos for the patch.
+- 2023-10-31: imklog bugfix: keepKernelTimestamp=off config param did not work
+ ... at least not as expected. It was only honored for kernel-level
+ messages and only when parseKernelTimestamp was "on". Otherwise, the
+ kernel timestamp was always kept inside the message.
+ closes https://github.com/rsyslog/rsyslog/issues/5160
+- 2023-10-26: TLS subsystem: add remote hostname to error reporting
+ This provides richer and easier to process logs for error and warning
+ cases. One goal is to enable automatic operations without the need
+ to consolidate multiple message to a single information.
+ This improves one situation in gtls driver and provides a more
+ generic approach in ossl driver for OpenSSL error reporting.
+ There is probably still room for improvement, however this patch
+ is at least a good starting point for further work. Please
+ provide feedback if you need more!
+ closes https://github.com/rsyslog/rsyslog/issues/5244
+- 2023-10-24: imjournal: add the ability to run multiple journal inputs
+ This may be useful to de-couple journal processing.
+ Thanks to Willy Tu for the patch.
+- 2023-10-24: regression fix: forking rsyslogd on BSD did not work
+ Actually, this was an issue for all platforms that do not provide open file handle
+ detection via the /proc file system.
+ Tech details: After fork if the child process uses close_range to close open file
+ descriptors it has no way to exempt the parentPipeFD causing a failure to signal
+ successful startup to the parent process. This causes failures on all systems that
+ aren't Linux that implement close_range.
+ Thanks to Nathan Huff for the patch.
+- 2023-10-24: omusrmsg: use logind instead of utmp for wall messages with systemd
+ Future SUSE versions will get rid of utmp due to a 32bit time_t counter
+ overflow in 2038.
+ See details at:
+ https://github.com/thkukuk/utmpx/blob/main/Y2038.md
+ On systemd based systems logind is an alternative to utmp.
+ Thanks to github user tblume for the patch.
+- 2023-10-24: cleanup: rm no longer used --with-systemdsystemunitdir configure switch
+ This is a clean up following the removal of the service unit in
+ cfd07503ba055100a84d75d1a78a5c6cceb9fdab
+- 2023-10-23: testbench: bump zookeeper version to match current offering
+ Older version can no longer be downloaded. It also makes sense to
+ test with mainstream version.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2310.0 (aka 2023.10) 2023-10-10
+- 2023-10-04: Add CAP_NET_RAW capability due to the omudpspoof module
+ The CAP_NET_RAW ensures the use of RAW and PACKET sockets,
+ which is utilized by the omudpspoof module, more precisely
+ the libnet_init function.
+ Thanks to Attila Lakatos for the patch.
+- 2023-10-04: Add new global config option "libcapng.enable"
+ Defines whether rsyslog should drop capabilities at startup or not.
+ By default, it is set to "on". Until this point, if the project was
+ compiled with --enable-libcap-ng option, capabilities were
+ automatically dropped. This is configurable now.
+ Thanks to Attila Lakatos for the patch.
+- 2023-10-04: tcp net subsystem: handle data race gracefully
+ It may happen that a socket file descriptor has been closed either
+ while setting up poll() et al or while being inside the system call.
+ This was previously treated as error and caused abort in debug
+ builds. However, it was essentially ignored in production builds.
+ This has now been fixed and now is always gracefully ignored. This
+ most importantly fixes some flakes in CI runs (which were caused
+ by this situation).
+- 2023-09-29: imrelp bufgifx: avoid crash on restart in imrelp SIGTTIN handler
+ While existing, if at specific time rsyslog receives a SIGTTIN, it
+ crashes due to 2 issues.
+ 1. debug.unloadModules="off" a double free of pRelpEngine
+ 2. debug.unloadModules="on" it crashes because the signal handler has
+ been unmapped from memory.
+ This patch covers both issues.
+ Thanks to Ali Abdallah for the patch.
+- 2023-09-28: fix startup issue on modern systemd systems
+ When we startup AND are told to auto-background ourselfs, we must
+ close all unneeded file descriptors. Not doing this has some
+ security implications. Traditionally, we do this by iterating
+ over all possible file descriptor values. This is fairly compatible,
+ because we need no OS-specific method. However, modern systemd configs
+ tend to not limit the number of fds, so there are potentially 2^30(*)
+ fds to close. While this is OKish, it takes some time and makes
+ systemd think that rsyslog did not properly start up.
+ We have now solved this by using the /proc filesystem to obtain our
+ currently open fds. This works for Linux, as well as Cygwin, NetBSD,
+ FreeBDS and MacOS. Where not available,and close_range() is available
+ on the (build) platform, we try to use it. If that fails as well, we
+ fall back to the traditional method. In our opionion, this fallback
+ is unproblematic, as on these platforms there is no systemd and in
+ almost all cases a decent number of fds to close.
+ Very special thanks go out to Brennan Kinney, who clearly described
+ the issue to us on github and also provided ample ways to solve it.
+ What we did is just implement what we think is the best fit from
+ rsyslog's PoV.
+ (*) Some details below on the number of potentially to close fds.
+ This is directly from a github posting from Brennan Kinney.
+ Just to clarify, by default since systemd v240 (2018Q4), that
+ should be `1024:524288` limit. As in the soft limit is the expected
+ `1024`.
+ The problem is other software shipping misconfiguration in systemd
+ services that overrides this to something silly like
+ `LimitNOFILE=infinity`.
+ - Which will map to the sysctl `fs.nr_open` (_a value systemd
+ v240 also raises from `2^20` to 2^30`, some distro like Debian are
+ known to opt-out via patch for the `fs.nr_open` change_).
+ - With the biggest issue there being that the soft limit was also
+ set to `infinity` instead of their software requesting to raise
+ the soft limit to a higher value that the hard limit permits.
+ `infinity` isn't at all sane though.
+ - The known source of this misconfiguration is container software such
+ as Docker and `containerd` (_which would often sync with the
+ systemd `.service` config from the Docker daemon `dockerd.service`_).
+ closes https://github.com/rsyslog/rsyslog/issues/5158
+- 2023-09-13: Add the 'batchsize' parameter to imhiredis
+ Parameter set to allow configuring the amount of entries imhiredis debatches at once.
+ Default value of '10' has been kept to avoid any side effect on existing
+ configurations.
+ Thanks to Jérémie Jourdin for the patch.
+- 2023-09-13: omprog bugfix: Add CAP_DAC_OVERRIDE to the bounding set
+ The omprog module uses the execve() function to execute
+ a third party program. Some required capabilities were not
+ preserved in the bounding set [1]. This caused problems, e.g.
+ the program could not write to files even if rsyslog was
+ executed as root and privileges were not dropped. As of now,
+ only the CAP_DAC_OVERRIDE capability is added to the bounding
+ set. Others could be added later, if there is justification
+ behind that.
+ [1] The capability bounding set is a security mechanism that
+ can be used to limit the capabilities that can be gained
+ during an execve(2). During an execve, the capability
+ bounding set is ANDed with the file permitted capability
+ set, and the result of this operation is assigned to the
+ thread's permitted capability set. The capability
+ bounding set thus places a limit on the permitted
+ capabilities that may be granted by an executable file.
+ Thanks to Attila Lakatos for the patch.
+- 2023-09-13: tcpflood bugfix: plain tcp send error not properly reported
+ The error code when plain tcp sending failed was improperly returned,
+ resulting in no meaningful error message.
+ Note: tcpflood is a testbench tool, not part of production rsyslog.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2308.0 (aka 2023.08) 2023-08-15
+- 2023-08-07: crypto subsystem bugfix: potential undefined behaviour
+ The is some potential undefined behaviour when initializting the IV for locally
+ encrypting log files. The issue cancels itself out, but at least causes
+ some confusion when using undefined behaviour sanitizer (UBSAN). However,
+ UBSAN seems not to detect the issue on all platforms and/or in all versions
+ (we were not able to reproduce this issue in our CI).
+ Please also note that the functionality where this can happen is extremely
+ rarely being used.
+ Thanks to Jeffrey Walton for providing the patch.
+- 2023-08-02: lookup tables: fix static analyzer issue
+ If something goes really wrong, a lookup table's name would not
+ be set. That could lead to a NULL pointer access. HOWEVER, this
+ would require serious bugs in config parameter parsing, as the
+ lookup table name is a required parameter and the parser will
+ error out if not set.
+ So the bug is mostly cosmetic - but it does not hurt to handle
+ this case, of course.
+- 2023-08-02: lookup tables bugfix: reload on HUP did not work when backgrounded
+ Lookup tables were only reloaded on HUP if the -n option was given
+ and rsyslog no backgrounded. This patch fixes the issue.
+ closes: https://github.com/rsyslog/rsyslog/issues/4813
+- 2023-07-30: testbench: make test more reliable
+ There was a race between tcpflood and rsyslog in imptpc_maxsessions.sh.
+ We now use the new -A tcpflood option to make the timing more
+ predictable, hopefully fixing test flakiness.
+ Note: if that does not help, we need to introduce a wait on the number
+ of error messages and maybe a delay before tcpflood termination. The
+ theory behind the latter is that rsyslog possibly does not fully
+ iniaitlize session which are quickly aborted before rsyslog receives
+ the related OS notification! We just record this info in case we
+ need it and are positive that this change will fix the situation.
+- 2023-07-28: openssl: make connection setup more reliable by use of newer lib feature
+ Replaced depreceated method SSLv23_method with TLS_method.
+ In OpenSSL 1.1.0 and higher, SSLv23_method causes some errors
+ in TLS handshake from time to time. As this method is depreceated
+ since 1.1.0, I have replaced it with the follow up method
+ TLS_method which is the most generic one.
+ It fixes the random test failures in tests like
+ - sndrcv_tls_ossl_anon_rebind.sh
+ Also added some debug output in OpenSSL error handling, which is
+ useful when analysing debug files.
+ closes: https://github.com/rsyslog/rsyslog/issues/5201
+- 2023-07-28: testbench improvement: define state file directories for imfile tests
+ Not all imfile tests have state file directories or a global working
+ directory defined. This results in usage of the default location.
+ While state file names should be sufficiently different, there is still
+ some riks of using the same name in different tests. That becomes
+ problematic if tests are run in parallel (and they are run in
+ parallel inside the regular CI).
+ NOTE: NOT YET COMPLETED FOR ALL TESTS! We are considering if it makes
+ sense to deliberately keep some as-is.
+- 2023-07-28: tcpflood bugfix: TCP sending was not implemented properly
+ Note: tcpflood is a testbench tool. This bug could lead to testbench
+ false positives. No way it can affect production deployments.
+ The tcpflood tool did improperly assume that a TCP sendto() call
+ would send messages of any size in a single shot. This is not the
+ case. It has now been corrected to proper behavior.
+ As a side-activity, some int variables which acutally needed to be
+ size_t have been fixed as well.
+- 2023-07-28: testbench: make waiting for HUP processing more reliable
+ The previous approach was more or less delay based. We have now
+ changed the code to enable imdiag to detect if HUP is underway
+ and wait until it is completed. The new method still employs some
+ kind of timeout, but is now quite reliable. Most importantly,
+ it works great with long-running HUP processing, which can happen
+ e.g. when querying the system name takes long or some actions need
+ longer time to persist their HUP processing.
+ The new approach will most likely reduce CI flakes and also speed
+ up testbench runs. The speedup happens from not having to wait a
+ full delay in cases where we detect HUP is completed (plus reduced
+ timeout when we cannot clearly detect this - see code comments why
+ the new method is still considered more reliable than the old one).
+ Code note: we needed to slightly re-structure the way actual HUP
+ processing and the "HUP mutex" is handled. After best analysis,
+ this does not affect the reliability or speed in production
+ settings.
+ closes https://github.com/rsyslog/rsyslog/issues/5192
+- 2023-07-27: build system: make rsyslogd execute when --disable-inet is configured
+ This option is mostly useless, as network functionality depends on the
+ modules loaded by the config. The only real, and important, effect it
+ has is to control auto-load of omfwd - a feature almost all installations
+ depend in (backward compatibility).
+ This has been clarified in ./configure -help
+ Also, when --disable-inet is given, rsyslog now executes successfully.
+ The reason for the abort was that previously building of the lmnet
+ component was prevented, but that component is also needed by rsyslog
+ startup itself to query its own (correct) hostname.
+ Note that --disable-inet still does not compile some networking
+ libraries. So do not use it if you intend to load standard networking
+ modules like omfwd, imtcp or imudp.
+ closes https://github.com/rsyslog/rsyslog/issues/5188
+- 2023-07-26: testbench/CI: update zookeper download to newer version
+ Old version is no longer available.
+- 2023-07-24: openssl: add support for new-version init function
+- 2023-07-07: add CRL support for network (TLS) drivers
+ Thanks to Darren J Moffat for implementing the OpenSSL part.
+- 2023-07-07: omazureeventhubs: Initial implementation of new output module
+ The output module uses Apache "Qpid Proton C API" which is a solid
+ AMQP protocol library implementation that can be integrated
+ very well into the rsyslog dev environment.
+ - Implemented Delivery with submitted and accepted state checking
+ - saving of failed messages in a failed list with support of saving
+ and restoring.
+ - Add testcases (requires ENV variables) to testbench
+ - Using application/octect-stream (binary) to send messages based on
+ Microsoft Code Sample:
+ https://docs.microsoft.com/en-us/azure/event-hubs/event-hubs-c-getstarted-send
+ * Note original Microsoft Samplecode is not working anymore, we are using
+ * QPID Proton Proactor based on
+ https://github.com/apache/qpid-proton/blob/main/c/examples/send.c
+ - requires QPID-PROTON Version 0.13 or higher because of the proactor API
+ - Add EventProperties configuration parameters
+ - Slow down when sender credit reaches zero (10ns).
+ - Add support for static library linking of qpid-proton
+ This is needed to build the module from source and remove
+ library package dependencies.
+ - adjusted valgrind suppressions
+- 2023-07-04: core bugfix: action.resumeintervalmax parameter was not respected
+ Unfortunately, defining action.resumeintervalmax in the configration
+ did not have any effect at all. Instead, the default value was used,
+ which is 1800. This was caused by not having all the letters in
+ lower-case.
+ Fixes https://github.com/rsyslog/rsyslog/issues/5132
+ Thanks to Attila Lakatos for the patch.
+- 2023-06-29: core bugfix: do not try to drop capabilities when we don't have any
+ In case the process does not have any capabilities, e.g. running as regular user then
+ we do not have to force capability dropping. The capng_have_capabilities() returns
+ none if that's the case.
+ Fixes https://github.com/rsyslog/rsyslog/issues/5091
+ Thanks to Attila Lakatos for the patch.
+- 2023-06-29: imhiredis bugfix: Restore compatiblity with hiredis < v1.0.0
+ RESP3 protocol wasn't implemented yet, some types weren't
+ available (REDIS_REPLY_DOUBLE)
+ Thanks to Théo Bertin (frikilax) for the patch.
+- 2023-06-23: testbench: use newer zookeeper version in tests
+- 2023-06-23: build system: more precise error message on too-old lib
+ When libcap-ng was enabled, the lib was present but did not meet the minimum version
+ dependency during configure, it was reported as "missing". We now emit a message
+ telling that it is present, but the version too old.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2306.0 (aka 2023.06) 2023-06-20
+- 2023-06-19: mmnormalize bugfix: if msg cannot be parsed, parser chain is stopped
+ When an parser is not able to parse a message, it should indicate this
+ to rsyslog core, which then activates the next parser(s) inside the
+ configured parser chain.
+ Unfortunatley, mmnormalize always tells core "success", and so no
+ other parsers are activated.
+ closes https://github.com/rsyslog/rsyslog/issues/5148
+- 2023-06-19: [i/o]mhiredis: various fixes and enhancements
+ please see the change log for details. Among others, suspending of the modules
+ has been fixed. Also a new "stream" mode has been added.
+ Thanks to Théo Bertin (frikilax) for the patch.
+- 2023-06-19: testbench/bug: mmexternal-SegFault-empty-jroot-vg.sh fails due to typo
+ Fix the typo that makes the test fail.
+ Thanks to Paul Fertser for the patch.
+- 2023-06-16: imjournal: Add FileCreateMode module parameter
+ FileCreateMode allows to set the default file mode bits
+ when creating new files. As of now, it has only impact on the state file.
+ Add test suite as well.
+ Minor indentation fix in run_journal.yml
+ Thanks to Attila Lakatos for the patch.
+- 2023-06-16: core bugfix: potential segfault on busy systems
+ This was discovered by Konstantin J. Chernov in a practicaly deployment.
+ Here, msg object tag processing caused sporadic segfaults. We did not
+ hear from similiar cases, but there clearly is potential for problems
+ because a mutex lock had insufficient range, thus leading to a potential
+ race.
+ The patch is directly from Konstantin J. Chernov, thanks for that.
+ Please note that the mutex lock could be minimized as it is not strictly
+ needed for the pM == NULL case, but this cause is extremely exotic
+ and the resulting code would be harder to understand. Thus we opt
+ to do the locking on funtion level (as usual).
+ Descriptiond edited by Rainer Gerhards
+ closes: https://github.com/rsyslog/rsyslog/issues/5110
+- 2023-06-16: Add new global config option "libcapng.default"
+ Defines how rsyslog should behave in case something went wrong
+ when capabilities were to be dropped. Default value is "on",
+ in which case rsyslog exits on a libcapng related error.
+ Thanks to Attila Lakatos for the patch.
+ Closes https://github.com/rsyslog/rsyslog/issues/5096
+- 2023-06-05: imfile bugfix: file handle leak, primarily in kubernetes context
+ At this point there is a code imfile.c#L919 that adds an inotify observer to the
+ parent of the symbolic link target. But there is no such code that removes this
+ observer in the case when inotify events do not occur in the directory tree above.
+ This may be if the directory tree of the symbolic link target and the directory tree
+ of the symbolic link itself are divided into different subtrees somewhere at the levels
+ above.
+ For example, in the rsyslog configuration, an imfile with the
+ template /var/log/containers/*.log is configured and there is the following directory
+ tree:
+ /var/log/pods/pod-1/a/0.log
+ /var/log/containers/pod-1-a-0.log -> /var/log/pods/pod-1/a/0.log
+ In this example, kubernetes cron jobs will permanently delete directories at the
+ /var/log/pods/pod-* level. And thus, inotify observer on the parent object of the
+ symbolic link target (/var/log/pods/pod-1/a/0.log) looking at the directory
+ /var/log/pods/pod-1/a will constantly leak.
+ This is due to the fact that the list of active objects in the edge with path
+ /var/log/containers, where the parent object of the target symbolic link is added,
+ is not checked. Verification and deletion will occur only in the case of an inotify
+ event in the upper nodes of the directory tree, in /var/log and above.
+ Thanks to Sergey Kacheev for the patch!
+- 2023-06-05: GNUTls Driver: Fix memory leaks in gtlsInitCred
+ Missing CA Certificate or multiple Connections caused
+ a memory leak in pThis->xcred as it was allocated each time in
+ gtlsInitCred by gnutls_certificate_allocate_credentials
+ closes: https://github.com/rsyslog/rsyslog/issues/5135
+- 2023-05-24: CI: update base ubuntu image for github actions
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2304.0 (aka 2023.04) 2023-04-18
+- 2023-04-17: imptcp bugfix: spam log on oversize message
+ If an oversize message was received by imptcp, imptcp reported
+ one error message for EACH oversize character. This could
+ result in a potentially very large number of similar (and
+ useless) messages.
+ This is a regression from commit f052717178.
+ closes https://github.com/rsyslog/rsyslog/issues/5078
+- 2023-04-17: core/bugfix: using $uuid msg prop can deadlock rsyslog on shutdown
+ This problem can occur if a large number of threads is used and rsyslog
+ cannot shut down all queues etc within the regular time interval. In this
+ case, it cancels some threads. That can leave the mutex guarding libuuid
+ calls locked and thus prevents other, not yet cancelled threads from
+ progressing. Assuming pthread_mutex_lock() is not a cancellation point,
+ this will case these other threads to hang forever and thus create a
+ deadlock situation.
+ closes https://github.com/rsyslog/rsyslog/issues/5104
+- 2023-04-17: Do not preserve capabilities when changing credentials
+ In configurations where $PrivDropToGroup or $PrivDropToUser are used,
+ rsyslogd changes uid/gid to a non-privileged user. As part of that
+ change, all capabilities should be lost. However, if rsyslog is
+ compiled with --enable-libcap-ng option, some capabilities are
+ preserved due to using capng_change_id() instead of setgid()and
+ setuid(). https://linux.die.net/man/3/capng_change_id:
+ This function preserves capabilities while changing uid/gid, causing
+ rsyslogd to run as non-root user, but with some root capabilities.
+ Unfortunately, rsyslogd will run with higher privileges than before.
+ The patch also removes CAP_SETPCAP, because the capability set does
+ not need to be altered at a later phase.
+ Thanks to Attila Lakatos for the patch.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2302.0 (aka 2023.02) 2023-02-21
+- 2023-01-27: core/template: implement negative position.to
+ This will easily permit to drop the last n characters from a property
+ without the need to know the exact length of the string. This is
+ especially useful as the exact length is most often not known
+ beforehand.
+- 2023-01-18: Introduce --enable-libcap-ng configure option
+ The option allows to drop the capabilities to only
+ the necessary set, to minimize security exposure in
+ case there was ever a mistake in a networking
+ plugin or some other input resource. Moreover, it adds
+ ability to change uid and gid while retaining the
+ previously specified capabilities.
+ Add ability to change uid and gid while retaining the
+ capabilities previously specified.
+ closes https://github.com/rsyslog/rsyslog/issues/4986
+ Thanks to Attila Lakatos for the patch.
+- 2023-01-16:
+ - omfile: add action parameters "rotation.*"
+ Add new action parameters
+ - rotation.sizeLimit
+ - rotation.sizeLimitCommand
+ provide automatic output file rotation functionality feature-wise
+ equivalent to legacy $outchannel. This finally permits to use
+ this feature set in rscript.
+ - core substring function: enhancement and hardening
+ Now, length can have a negative value -n to denote that the
+ substring should be build between startpos and the character
+ -n chars from the end. This is a shortcut for stripping charactes
+ on "both ends" of the string. See doc for details on the enhanced
+ semantics.
+ Also, some hardening against invalid startpos and length has
+ been added.
+ - core bugfix: wrong type conversion in internal string class could lead to segfault
+ This could only happen with very unusually large strings
+ Thanks to Flos Lonicerae for the patch.
+ - QA: changed to CodeQL scanning on github as LGTM replacement
+ - bugfix: wrong version number on daily stable builds
+ - CI: use newer version of zookeeper (needed modernization)
+ - ffaup bugfix : memory corruption with concurrent workers
+ The ffaup function fails to work properly when it is used with multiple workers.
+ The faup_handler_t struct is not supposed to be shared between threads.
+ This may have caused memory corruptions and race conditions when used
+ inside of actions.
+ Thanks to Thibaud Cartegnie for the fix.
+ - openssl bugfix: undefined reference error on OpenSSL 1.1 or higher.
+ This could have prevented ossl components from being loaded/used.
+- 2023-01-02: core bugfix: template system may generate invalid json
+ When
+ - a list template
+ - is created with option.jsonf="on"
+ - and the last list element is a property with onEmpty="skip"
+ - and that property is actually empty
+ invalid JSON is generated.
+ The JSON string in this case ends with ", " instead of "}\n". This
+ patch fixes the issue.
+ closes https://github.com/rsyslog/rsyslog/issues/5050
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2212.0 (aka 2022.12) 2022-12-06
+- 2022-12-05: testbench: make python http server based tests more reliable
+ Harden them against races during server port assignment. Prevents
+ testbench flakes.
+- 2022-12-05: omprog bugfix: invalid status handling at called program startup
+ There is a bug when external program *startup* does not return "OK". This
+ can also lead to a misadressing with potentially a segfault (very unlikely).
+ Note that no problem exists once the initializiation phase of the external
+ program is finished and regular message transfer runs.
+ The problem basically is that for a startup failure, the control data for
+ that external program instance is freed on error. Unfortunately, that state
+ data is needed later on to detect a suspended instance. We now keep the control
+ data even on init failure (as we then need to do normal control options).
+ closes https://github.com/rsyslog/rsyslog/issues/4967
+- 2022-11-29: testbench bugfix: wrong message injection object of instance 1
+ In some client-server test cases, messages are supposed to be injected into
+ the instance 2(client), but they are actually injected into instance 1(server),
+ which may lead to false negative results. This patch fixed it by replacing
+ 'injectmsg' with 'injectmsg2', and dealt with some minor issues.
+ Thanks to Guodong Zhu for the patch.
+- 2022-11-21: rsyslog.conf man page bugfix: description of selectors
+ Document historic difference to BSD syslog selectors.
+- 2022-11-18: imtcp bugfix: legacy config directives did no longer work
+ Many "$InputTCPServer..." config directives did no longer work
+ and were completely ignored (e.g. "$InputTCPServerStreamDriverMode").
+ This was a regression from a08591be5d9 (May, 5th 2021).
+ closes https://github.com/rsyslog/rsyslog/issues/5021
+- 2022-11-16: ksi bugfix: sending of too many signing requests fixed.
+ As there is a bug in libksi where too many signing requests may have bene sent
+ out the amount of signing requests will be limited by KSI module until the fix
+ is implemented.
+ Thanks to Taavi Valjaots for the patch.
+- 2022-11-14: bugfix: prevent potential segfault when switchung to queue emergency mode
+ When switching to Disk queue emergency mode, we destructed the in-memory
+ queue object. Practice has shown that this MAY cause races during
+ destruction which themselfs can lead to segfault. For that reason, we
+ now keep the disk queueu object. This will keep some ressources,
+ including disk space, allocated. But we prefer that over a segfault.
+ After all, it only happens after a serious queue error when we are
+ already at the edge of hard problems.
+ see also: https://github.com/rsyslog/rsyslog/issues/4963
+- 2022-11-08: ksi bugfix: Segmentation fault in async mode fixed
+ Thanks to Taavi Valjaots for the patch.
+- 2022-11-02: imjournal: add second fallback to _COMM
+ If SYSLOG_IDENTIFIER is not present in the journal message,
+ then lookup the _COMM field, which stands for the name
+ of the process the journal entry originates from. This is
+ needed in order to be in compliance with the journalctl
+ output.
+ Thanks to Attila Lakatos for the patch.
+- 2022-10-25: core bugfix: local hostname invalid if no global() config object given
+ The local hostname is invalidly set to "[localhost]" on rsyslog startup
+ if no global() config object is present in rsyslog.conf. Sending a HUP
+ corrects the hostname.
+ This is a regression from ba00a9f25293f
+ closes https://github.com/rsyslog/rsyslog/issues/4975
+ closes https://github.com/rsyslog/rsyslog/issues/4825
+- 2022-10-25: testbench bugfix: fixed timing issue that sometimes lead to test failure
+ Timing caused a race in test tool sync and could lead to premature termination of
+ tools, which in turn caused test failure
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2210.0 (aka 2022.10) 2022-10-18
+- 2022-10-13: fix NetBSD build issue
+ On NetBSD, time_t has for a long time now been __int64_t.
+ On 32-bit CPUs, the compiler is not obliged to define
+ __sync_bool_compare_and_swap_8, so instead this ends up
+ as an undefined symbol when linking rsyslog. This makes
+ the code fall back to the pthread / locking method on these
+ systems, but at least lets the program build.
+ Thanks to Havard Eidnes for the patch.
+- 2022-10-12: omrabbitmq: Add TLS support
+ Thanks to github user 21stcavenan for the patch.
+- 2022-09-14: config: add "abortOnFailedQueueStartup" global config parameter
+ similiar to "abortONUncleanConfig", this parameter aborts rsyslog
+ when a queue has problems during startup. Some users perfer rsyslog
+ to terminate in this case. By default, nothing changes.
+ closes https://github.com/rsyslog/rsyslog/issues/4902
+- 2022-09-07: cor bugfix: leak in helper function SetString
+ A part of rsyslog runtime, SetString(), had a small memory leak when a value was
+ assigned multiple times. While this could potentially consume larger amounts of
+ memory, this did not happen in practice. The reason is that multiple assignments
+ to the same object occur very seldom.
+ Thanks to github user seuzw930 for the patch.
+ closes: https://github.com/rsyslog/rsyslog/issues/4961
+- 2022-09-07: core bugfix: correct local host name after config processing
+ rsyslog.conf may affect the host's local name. These changes were
+ so far only activated after the first HUP. This patch now ensures
+ that the configured local host name is applied correctly throughout
+ all processing, including early startup.
+ This patch causes a slight change of behaviour. However, the behaviour
+ was inconsitent before. Now it is consistent and according to the config.
+ Please note: this patch also exposes a global entry point via "regular"
+ dynamic loading as this makes things much easier to do. This is in-line
+ with ongoing simplification effort.
+ Finally, we also remove a CI test that we do no longer need because
+ the problem covered is now addressed differently and the original issue
+ can no longer occur.
+ closes https://github.com/rsyslog/rsyslog/issues/4975
+- 2022-08-31: imtcp: add option notifyonconnectionopen
+ Add this both as module an input parameter. Complements already-existing
+ config param notifyonconnectionclose and mirrors the similar feature from
+ imptcp.
+ The module parameter acts as default, similarly to notifyonconnectionclose.
+ Note that in contrast to imptcp, we emit IP addresses and not host
+ names. This sticks with the traditional semantics of imtcp.
+ Note that we also fixed a mislading error message in the case when a
+ disallowed sender tried to connect.
+ Thanks to John Chivian for suggesting the addition.
+- 2022-08-26: openssl TLS driver: add mechanism to include extra CA files parameter
+ This change allows to include extra CA files so that no "unable to get issuer
+ certificates" issue is obtained when using chained cert files. New parameter name is
+ "NetstreamDriverCAExtraFiles".
+ Thanks to Sergio Arroutbi for the patch.
+ closes: https://github.com/rsyslog/rsyslog/issues/4851
+- 2022-08-19: fix compile issue with older gcc compilers
+ Thanks to Julien Thomas for the contribution.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2208.0 (aka 2022.08) 2022-08-09
+- 2022-08-09: ksi bugfix: request cache size and send timeout issue fixed.
+ Async service send timeout is not configurable and request cache size is too
+ small to handle large amount of signing requests with small amount of permitted
+ requests per aggregation round. For example user with max_requests = 4 results
+ cache size 5 * max_requests or at least 256. When signing 300 log files cache
+ will be too small resulting several unsigned blocks. When signing 200 log file
+ cache will be adequate, but with rate of 4 signatures per second, it is only
+ possible to sign 4 * 10 blocks before all requests that are not sent out will
+ timeout.
+ Fix for the issue is to make send timeout configurable and make the size of the
+ cache depend on the value of send timeout. New configuration value
+ sig.block.signtimeout="time, s" introduced that defines the time window wherein
+ the block has to be signed. The size of the request cache is increased to
+ 3 * max_requests * sign_timeout or at least 256.
+ Thanks to Taavi Valjaots for the patch.
+- 2022-08-09: imjournal bugfix: segmentation fault in close journal
+ Thanks to github user t-feng for the patch.
+- 2022-08-09: net subsystem: support sha256 for StreamDriverAuthMode="x509/fingerprint"
+ Thanks to github user codemaker219 for the patch.
+- 2022-08-05: imfile bugfix: message loss/duplication when monitored file is rotated
+ When a to-be-monitored file is being rotated, some messages may be lost or
+ duplicated. In case of duplication, many file lines may be duplicated
+ depending on actual timing. The whole bug was primarily timing depenedent
+ in general. It most often was visible in practice when the monitored
+ file was very frequently rotated (we had some report with every few
+ seconds).
+ Note that while we try hard to not lose any messages, input file
+ rotation always has some loss potential. This is inevitable if
+ the monitored file is being truncated.
+ Also note that this bugfix affects imfile, only. It has nothing to do
+ and no relation to rsyslog output files being rotated on HUP.
+ closes: https://github.com/rsyslog/rsyslog/issues/4797
+- 2022-08-05: ksi bugfix: optimize processing of signer queue to fix delays.
+ There is a worker queue where rsyslog KSI module collects events and signing
+ requests. When queue is processed thread is periodically put to sleep. Previous
+ implementation handles signature requests well but sleeps every time after
+ handling new file open / close event. When several log files are opened or
+ closed simultaneously process is significantly slowed down. Another issue is
+ that thread always sleeps 1000ms that may be 2x longer than aggregation round.
+ This slows down overall signing process.
+ Fix for the issue is to simply not sleep after file open / close event if there
+ are next items to be processed. To speed up the signing process, rsyslog uses
+ KSI aggregator conf. to obtain the aggregation period that is used for the sleep
+ time configuration.
+ Thanks to Taavi Valjaots for the patch.
+- 2022-08-04: ksi bugfix: possible crash fixed when several log files are opened.
+ KSI module in async mode used to request aggregator conf. every time a log
+ file was opened. When several log files were opened simultaneously
+ corresponding amount of pointless concurrent conf. requests were posted.
+ Concurrent conf. requests lead to a bug in libksi, where internal count of
+ pending requests was not decremented correctly causing system to crash.
+ Fix for the issue is to optimize the frequency of conf. requests so that only
+ one conf. requests is handled at once. Instead of checking conf. every time
+ log file is opened, conf is requested periodically after conf timeout. This will
+ affect both sync and async mode.
+ New option for KSI module introduced - sig.confinterval="time, s".
+ Thanks to Taavi Valjaots for the patch.
+- 2022-08-04: openssl: add support to split tls commands by semicolon
+ - Add support to split tls commands by semicolon.
+ - Changed one test with multiple tls commands to use semicolon as
+ separator instead of newline.
+ closes: https://github.com/rsyslog/rsyslog/issues/4852
+- 2022-08-04: openssl subsystem bugfix: build issue on Solaris
+ Needed header file was added. Platforms other than Solaris did not actually need it,
+ so this bug was discovered late.
+ Thanks to Jakub Kulík for the patch.
+ Import <strings.h> when index() is used.
+- 2022-08-04: openssl: add more details to error messages
+ - Avoid LogMsg outputs osslEndSess on successfull terminated
+ connection. Only LogMsg if the connection was terminated
+ unsuccessfully.
+ - Handle SSL_ERROR_SYSCALL in both Send / osslRecordRecv,
+ do not log as error if underlaying socket was terminated
+ (ECONNRESET). Log as information instead.
+ closes: https://github.com/rsyslog/rsyslog/issues/4946
+- 2022-08-04: omclickhouse: capture additional exceptions
+ - DB::NetException
+ - DB::ParsingExceptions
+ Thanks to Victor Kustov for the patch.
+- 2022-08-04: mmanon bugfix: Simplified and fixed IPv4 digit detection.
+ - Fixed an issue with numbers above int64 in syntax_ipv4.
+ Numbers that were up to 256 above the max of an int64
+ could incorrectly be detected as valid ipv4 digit.
+ - Simplified the IPv4 digit detection function and renamed
+ to isPosByte.
+ - added testcasse for malformed IPvc4 addresses
+ closes: https://github.com/rsyslog/rsyslog/issues/4940
+- 2022-07-21: imptcp: slight tuning
+ - reduce indirect addressing to obtain more speed
+ - also a fix for an annoying typo
+ - minor other optimizations
+ - modernization of one test
+- 2022-07-20: template procesing/json: performance optimization
+- 2022-07-19: core bugfix: memory leak when free action worker data table
+ During free action worker data table when action destruct, worker instance in worker
+ data table were not null. It resulted in memory leak.
+ Thanks to github user seuzw930 for the patch.
+- 2022-07-13: omfile: support for zstd compression
+ The zstd library provides better and faster compression than zlib.
+ This patch integrates zstd as a dynamically-loadable functionality.
+ As such, no further dependencies need to be added to the rsyslog
+ base package.
+ Due to the increased performance, usage of zstd is highly recommended
+ for high-volume use cases.
+ This patch also refactor zlib compression in order to unify handling
+ in both compression cases.
+- 2022-07-07: stream cleanup: move error message to debug log, only
+ This error message is most probably rooted in a kernel problem. At
+ least knowbody knows how it can happen. It's definitely not a
+ rsyslog issue. We also can recover from it for a long time now
+ so there is no reason to irritate users by emitteing this
+ "error" message.
+- 2022-07-04: mmdblookup bugfix: Don't crash Rsyslog on mmdb file errors
+ Thanks to Théo Bertin (frikilax) for the patch.
+- 2022-06-28: build error fix: libbson requires out-of-date language constructs
+- 2022-06-27: OpenSSL: fix depreacted API issues for OpenSSL 3.x
+ - OpenSSL error strings are loaded automatically now
+ - Debug Callback has changed
+ - See for more:
+ https://www.openssl.org/docs/manmaster/man7/migration_guide.html
+ closes: https://github.com/rsyslog/rsyslog/issues/4912
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2206.0 (aka 2022.06) 2022-06-14
+- 2022-05-25: omelastisearch: allow omitting _type field
+ Allow omitting the _type field by setting it to an empty string.
+ Setting this field has been deprecated since 6.0, and support will
+ be removed in 8.0
+ Also add testbench test for empty searchType with ES 7.0
+ This checks for messages in the deprecation log and also provides
+ avoids deprecation messages from usage of transport.tcp.port in the
+ test configuration
+ Thanks to Jarkko Oranen for the patch.
+- 2022-05-18: tcpsrv/imtcp: slight performance improvements
+ This change slightly improves performance for tcpsrv-based servers.
+ This affects imtcp and imgssapi as well as some helpers.
+ No other functional change is included in this change.
+- 2022-05-12: imptcp bugfix: worker thread starvation on extreme traffic
+ When connectes were totally busy, without any pause, the assigened worker
+ did never terminate its reading loop. As such, it could not service any
+ other conenctions. If this happened multiple time and to all configured
+ workers, all other connections could not be processed at all. This extreme
+ scenario is very unlikely, as the whole issue is relatively unlikely.
+ In practice, the issue could lead to somewhat degraded performance and
+ resolved itself after some time (in practice no connection is 100% busy
+ for an extended period of time).
+ Note that this patch sets a fixed limit of 16 iterations for very busy
+ connections. This sounds like a good compromise between non-starvation
+ and performance. The exact number may be made configurable if there
+ is really need to.
+- 2022-05-11: omelasticsearch: several support option for ElasticSearch 8
+ - config params searchIndex and documentType can be empty
+ - support for Data Stream API
+ Thanks to github user EHerzog76 for these changes.
+ - new config param esVersion.major
+- 2022-05-09: tcp receiver bugfix: delay/potential hang on some error conditions
+ Error were not correctly handled in some cases for imtcp and imgssapi. This could
+ lead to a temporary stall of some connections. For ultry-low traffic systems, this
+ stall could stay for a long period of time. In most cases, it was resolved very quickly.
+ Note that imptcp was not affected.
+ Thanks to Iwan Timmer for the fix.
+- 2022-05-05: net bugfix: potential buffer overrun
+ there is heap buffer overflow vulnerability in rsyslog tcp reception components.
+ This can only happen in octet-counted mode, which is enabled by default.
+ Affected components: imtcp, imptcp, imhttp, imgssapi, imdiag when octet-counted
+ framing was enabled.
+ If the receiver ports are exposed to the public Internet AND are used
+ without authentication, this can lead to remote DoS and potentially to
+ remote code execution. It is unclear if remote code execution is
+ actually possible. If so, it needs a very sophisticated attack.
+ When syslog best practices with proper firewalling and authentication
+ is used, thean attack can only be carried out from within the Intranet
+ and authorized systems. This limits the severity of the vulnerability
+ considerably (it would obviously require an attacker already to be
+ present inside the internal network).
+ Credits to Peter Agten for initially reporting the issue and working
+ with us on the resolution.
+ fixes CVE-2022-24903
+ Advisory:
+ https://github.com/rsyslog/rsyslog/security/advisories/GHSA-ggw7-xr6h-mmr8#advisory-comment-72243
+- 2022-05-05: imptcp: set OS worker thread name
+ We now set the worker thread names to "imptcp/<thrd nbr>" where
+ <thrd nbr> is the numerical index (0, 1, ...) of the worker thread.
+ This enables to distinguish individual worker threads in OS tools like
+ htop. That is useful for performance testing and system monitoring.
+ The choosen name format is consistant with other similar thread
+ names inside rsyslog. For imptcp, worker threads were not yet
+ given individual names.
+ Note: "in:imptcp" is imptcp's "main" thread, which also is used
+ as a worker in some scenarios. This name was not modified.
+- 2022-04-26: mmanon bugfix: shortened IPv6 form not always anonymized
+ If the IPv6 is in non-recommended form followed by a 5 digit port number, it
+ is not anonymized.
+ A reproducer for this is: 1a00:c820:1180:c84c::ad3f:d991:ec2e:49255
+ closes https://github.com/rsyslog/rsyslog/issues/4856
+- 2022-04-22: mmdblookup fix: wrong copy of buffer
+ ...following parse of libmaxminddb's return after a successful search sometimes
+ failed to return specific field from data.
+ Thanks to Théo Bertin for the patch.
+- 2022-04-22: mmdblookup: several enhancements
+ - support arrays in MMDB entry
+ - support escaped quotes '"' in MMDB entry
+ - support '<' characters in MMDB entry, when in a field
+ - support '}' characters in MMDB entry, when in a field
+ Thanks to Théo Bertin for the patch.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2204.1 (aka 2022.04) 2021-05-05
+- security bugfix: potential buffer overrun in imptcp, imtcp, imgssapi and others
+ This addresses CVE-2022-24903
+ see also https://github.com/rsyslog/rsyslog/security/advisories/GHSA-ggw7-xr6h-mmr8
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2204.0 (aka 2022.04) 2021-04-19
+- 2022-04-18: gnutls bugfix: possibility of infinite loop
+ There was a rare possibility that the E_AGAIN/E_INTERRUPT handling
+ could cause an infinite loop (100% CPU Usage), for example when a TLS
+ handshake is interrupted at a certain stage.
+ * After gnutls_record_recv is called, and E_AGAIN/E_INTERRUPT error
+ occurs, we need to do additional read/write direction handling
+ with gnutls_record_get_direction.
+ * After the second call of gnutls_record_recv (Expand buffer)
+ we needed to also check the eror codes for E_AGAIN/E_INTERRUPT
+ to do propper errorhandling.
+ * Add extra debug output based on ossl driver.
+ * Potential fix for 100% CPU Loop Receiveloop after gtlsRecordRecv
+ in doRetry call.
+ closes https://github.com/rsyslog/rsyslog/issues/4834
+ closes https://github.com/rsyslog/rsyslog/issues/4818
+ closes https://github.com/rsyslog/rsyslog/issues/4638
+- 2022-04-17: core/bugfix: errorfile could grow over max configures size
+ When action.errorfile.maxsize configuration option is enabled and error file
+ already has a certain size smaller than max size configured, it is increasing
+ higher than configured max size as the error file is considered to be zero in code.
+ This fix reads current error file size and limits the size to the maximum
+ size configured.
+ Thanks to Sergio Arroutbi for the patch.
+ fixes https://github.com/rsyslog/rsyslog/issues/4821
+- 2022-04-17: omkafka bugfix: potential misadressing
+ The `failedmsg_entry` expects a null-terminated string in `key`, but
+ here we allocate with malloc and copy a string-with-length-n into only
+ the first n bytes. If the final byte is null, this is by coincidence
+ only.
+ This was observed by means of seeing random binary data appended to
+ keys submitted to kafka apparently at random. This could also result
+ in more severe problems, inclusing a segfault.
+ Thanks to David Buckley for the patch.
+- 2022-04-06: added new "FullJSONFmt" standard template (with addtl fields)
+ This comes handy for a number of use cases, especially with ElasticSearch.
+ Thanks to Art O Cathain for the patch.
+- 2022-04-04: imfile: potential processing delay
+ This was mentioned by Mikko Kortelainen without exact details on what exactly
+ this could cause in practice. But we were confident enough that it is worth
+ merging (though it does not look like something that brought real problems in
+ practice, as we do not know any related reports).
+ see also: https://github.com/rsyslog/rsyslog/pull/4445
+ Thanks to Mikko Kortelainen for the patch.
+- 2022-04-04: bugfix: cosmetic data races
+ there was a more or less cosmetic data race which could happen when children
+ processes died in quick sequence. Even then, no real harm happened, as all
+ children were reaped eventually.
+ A similar data race exists for HUP processing.
+ However, these races polluted TSAN test runs, and so we fixed them
+- 2022-04-01: add property options to support ISO week/year number
+ Thanks to Mattia Barbon for the patch.
+- 2022-04-01: core bugfix: "action suspended" message was emitted even when turned off
+ Most messages were diasabled, but there was one part of the code that ignored the
+ user configuration.
+ Thanks to Deyneko Aleksey for the patch.
+- 2022-03-31: testbench: add more tests for rscript comparison operations
+- 2022-03-31: core bugfix: make internal logs emitted during HUP procesing appear quicker
+ After call doHUP(), probably there is a internal log in the list. However, it
+ will not be wrote out immediately, because the mainloop will be blocked at
+ pselect in wait_timeout() until a long timeout or next message occur.
+ More deadly, the log may be lost if the deamon exits unexpectedly.
+ We might as well put processImInternal() after doHUP(), so that the message
+ will be flushed out immediately.
+ Fixes: 723f6fdfa6(rsyslogd: Fix race between signals and main loop timeout)
+ Thanks to Yun Zhou for the patch.
+- 2022-03-20: refactor: Move the parser directive to the main config
+ Thanks to Attila Lakatos for the patch.
+- 2022-03-16: refactor: ake the main message queue part of the config
+ The intent of this patch is to make the main message queue part of the main config.
+ It will help us to proceed towards dynamic configuration reload.
+- regression bugfix: rsyslog may segfault during startup
+ glblGetMaxLine() might be called even before the main configuration file exists
+ resulting unexpected behavior, most probably segmentation fault. This is addressed
+ by re-introducing the old default of 8KiB. The problem was introduced earlier in
+ 2022.
+- regression fix: script string comparison did not work correctly
+ In rscript, comparison operations on strings did not work correctly
+ and returned false results. This is cause by a regression in commit
+ 5cec5dd634e0. While it fixed number comparisons, it introduced new
+ problems in string comparisons, which were not present before. Note
+ that most items in rsyslog are strings, so this can actually cause
+ some problems.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2202.0 (aka 2022.02) 2022-02-15
+- 2022-02-14: imfile bugfix: remove cause for "internal error message" (not causing harm)
+ When any message is output into a renamed input file, rsyslogd output the following:
+ message.
+ imfile: internal error? inotify provided watch descriptor 7 which we could not find
+ in our tables - ignored
+ When rsyslogd detects the inode change, it deletes the entry from wdmap[]. But,
+ the watch descriptor is not removed. Some application like sssd outputs some messages
+ (like "HUP signal was received!!") after HUP signal is received and before switching
+ into the new log file. And, the above messages can be output every log rotation.
+ This situation is now resolved.
+ Thanks to Masahiro Matsuya for the patch.
+- 2022-02-04: rscript bugfix: literal numbers were not compared correctly
+ This problem occurred when numbers were used in rsyslog.conf in
+ the set statement, e.g.
+ set $nbr = 1234;
+ In this case, during comparisons, the number was actually interpreted
+ as a string with digits. Thus numerical comparisons lead to unexpected
+ results. Even more so, as in other places of the code they were
+ treated as native numbers.
+ This is now fixed. We cannot outrule that this causes, in border cases,
+ change of behavior to existing configs. But it is unlikely and the
+ previous behaviour was a clear bug and very unintuitive. This in our
+ opinion it is justified to risk a breaking change for an expected
+ very minor subset of installations, if any such exists at all.
+ closes https://github.com/rsyslog/rsyslog/issues/4770
+- 2022-02-04: omelasticsearch bugfix: indexSuccess impstats counter in bulkmode wrong
+ When bulkmode is enabled, and a batch was processed without any
+ failures (errors is false), the code that increments the indexSuccess
+ impstats counter was never reached.
+ closes: https://github.com/rsyslog/rsyslog/issues/4794
+- 2022-01-17: imkmsg bugfix: effectively disabled input on error reading kmsg
+ Due to a program bug, imkmsg could not recover from an kmsg read error.
+ Note that recovering is possible and was intended.
+ Thanks to Kailash Sethuraman for the patch.
+- 2022-01-17: imtcp bugfix: worker threads were not properly terminated
+ Graceful shutdown of Rsyslog could lead to segmentation faults when
+ multiple imtcp inputs were being used. That is because the rest of the
+ tcpsrv threads are left behind running, while their underlying objects
+ are being disposed by the main thread as part of the module
+ de-initialization.
+ closes: https://github.com/rsyslog/rsyslog/issues/4776
+ Thanks to Gabor Orosz <goro@goro.io> for the analysis and patch.
+- 2022-01-07: omlibdbi bugfix: use-after-free bug
+ This occurred in when sqllite driver was used. Depending on circumstances, this had
+ no visible issues (often) up to rsyslog segfault. The busier rsyslog is, the more
+ likely a bad outcome.
+- 2022-01-06: omhttp bugfix: memory leak in lokirest batchmode
+ A JSON object was created (valueObj) but not used and also not released causing a
+ memory leak. Over time, this could lead to memory overcomittent.
+ closes: https://github.com/rsyslog/rsyslog/issues/4766
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2112.0 (aka 2021.12) 2021-12-16
+- 2021-12-14: refactor:Deallocate outchannel resources in rsconf destructor
+ Thanks to Attila Lakatos for the patch.
+- 2021-12-14: refactor: use runConf instead of loadConf in ratelimiting during runtime
+ Thanks to Attila Lakatos for the patch.
+- 2021-11-22: new contribtion: URL parser module function using libfa
+ Thanks to Théo Bertin for the patch.
+- 2021-11-18: mmanon: relax IPv6 detection - improve anonymization
+ We so far tried to ensure a value is really an IPv6 address, in order
+ to avoid to mangle with just similar-looking information elements.
+ However, this lead to misdetection for unusual formats, e.g. when a
+ port is appended to a numerical IPv6 adress given without braces [].
+ This has been changed now. In a sense, we now prefer to err on the
+ side of privacy.
+ BEHAVIOR CHANGE:
+ Previously, a suspect value was not anonymized, and thus some other
+ elements (like some MAC addresses) preserved. Now the opposite is
+ true, and we anonymize anything that looks close enough to be an
+ IPv6 address. This improves anonymization.
+ closes https://github.com/rsyslog/rsyslog/issues/4725
+- 2021-11-10: ruleset bugfix: ruleset queue was incorrectly named
+ The ruleset was incorrectly and unusably named. This was a regeression
+ from 4a63f8e9629c3c9481a8b6f9d7787e3b3304320b.
+ Many thanks to github user digirati82 for alerting us.
+ closes https://github.com/rsyslog/rsyslog/issues/4730
+- 2021-11-10: omsnmp: update module to current IP best practices
+ The omsnmp module uses the inet_addr() function to convert the Internet host address
+ from IPv4 numbers-and-dots notation into binary data in network byte order. If the input
+ is invalid, INADDR_NONE (usually -1) is returned. Use of this function is problematic
+ because -1 is a valid address (255.255.255.255). We should avoid its use in favor of
+ inet_aton(), inet_pton(3), or getaddrinfo(3), which provide a cleaner way to indicate
+ error return [1].
+ This is just a request to satisfy covscan, so no error is reported at all.
+ Thanks to Attila Lakatos for the patch.
+- 2021-10-27: ommysql: fix threading bug
+ When the MariaDB connection was (re)established, old or NULL handle
+ could be used. This is fixed now.
+ We need to synchronize access to the mysql handle, because multiple threads
+ use it and we may need to (re)init it during processing. This could lead to
+ races with potentially wrong addresses or NULL accesses. If this really
+ matters mostly depends on the MariaDB/MySQL client library. It looks like
+ they guard against fatal failuers. Anyhow, logging errors inside rsyslog
+ could happen in any case.
+- 2021-10-25: testbench: false positive when impstats was not built
+ Test omfwd_fast_imuxsock failed when impstats was not built. This
+ has been corrected, test is now only executed when impstats is
+ present.
+- 2021-10-25: imtcp: add support for permittedPeers setting at input() level
+ The permittedPeers settig was actually forgotten during the refactoring
+ of TLS input() level settings. This functionality is now added.
+ closes: https://github.com/rsyslog/rsyslog/issues/4706
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2110.0 (aka 2021.10) 2021-10-19
+- 2021-10-13: config bugfix: global(security.abortonidresolutionfail=) did not work
+ when used with rscript based configuration, it was not checked.
+- 2021-10-13: config bugfix: global param $privDropToUser did not work correctly
+ The parameter was not implemented for rscript based configuration and
+ did not properly apply to legacy configuration. In essence, it almost always
+ did not work as expected.
+ see also: https://github.com/rsyslog/rsyslog/issues/4642
+ see also: https://github.com/rsyslog/rsyslog/commit/cbcaf2c7e5b67e5465e47bc7cc67af2eae47bd31
+- 2021-10-12: rscript bugfix: ruleset called async when ruleset had queue.type="direct"
+ The call rscript statement is able to call a rule set either synchronously or
+ asynchronously. We did this, because practice showed that both modes
+ are needed. For various reasons we decided to make async
+ calls if the ruleset has a queue assigned and sync if not.
+ To know if a "queue is assigned" we just checked if queue parameters were
+ given. It was overlookeded the case of someone explicitly specifying a
+ "direct queue", aka "no queue". As such, queue="direct" triggered async
+ calls. That in turn meant that when a write operation to a variable was
+ made inside that rule set, other rulesets could or could not see the
+ write. While if was often not seen, this was a data race where the
+ change could also be seen by the outside.
+ This is now fixed. No matter if queue.type="direct" is specified or
+ left out, the call will always by synchronous. Any values written to
+ variables will also be seen by the "outside world" in later processing
+ stages.
+ Note that this has some potential to BREAK EXISTING CONFIGURATIONS.
+ We deem this acceptable because:
+ 1. this was racy at all, so unexpected behaviour could alwas occur
+ 2. it is actually unlikely that someone used the triggering conditions
+ in practice. But we can not outrule this, especially when the
+ configuration was auto-generated.
+ Potential compatibility issues can be solved by defining a small
+ array-memory queue on the ruleset in question instead of specifying
+ direct type.
+ Again, we expect that almost all users will never experience any
+ problems. If you do, however, please let us know: we may add an
+ option to re-enable the bug.
+- 2021-10-12: ksi bugfix: locking bug fixed in rsksiCtxOpenFile
+ Thanks to Taavi Valjaots for the patch.
+- 2021-10-11: core bugfix: fix typo in error message
+ Thanks to github user jkschulz for the patch.
+- 2021-10-11: tcpsrv bugfix: compilation without exceptions
+ tcpsrv.c:992:1: error: label at end of compound statement
+ finalize_it:
+ ^~~~~~~~~~~
+ Quoting from pthread.h:
+ pthread_cleanup_push and pthread_cleanup_pop are macros and must always
+ be used in matching pairs at the same nesting level of braces.
+ Amends commit bcdd220142ec9eb106550195ba331fd114adb0bd.
+ Thanks to Orgad Shaneh for the patch.
+- 2021-10-11: mkubernetes bugfix: no connection retry to kubernetes APP
+ When connection to the kubernates API was not possible, mmkubernetes
+ did not retry. This does now happen via regular rsyslog retry
+ mechanism.
+ Thanks to github user jayme-github for the analysis and patch.
+ closes https://github.com/rsyslog/rsyslog/issues/4669
+- 2021-10-11: openssl bugfix: Correct gnutlsPriorityString (custom ciphers) behaviour
+ - Only apply default anon ciphers if gnutlsPriorityString is NULL and
+ Authentication Mode is set to anon. Otherwise we do not set them
+ as they overwrite custom Ciphers.
+ - Added two tests for custom cipher configuration (anon/certvalid mode).
+ - Add call for applyGnutlsPriorityString if gnutlsPriorityString changes.
+ - Merged openssl init code from Connect into osslInitSession
+ closes: https://github.com/rsyslog/rsyslog/issues/4686
+- 2021-10-11: build issue: handle undefined MAXPATHLEN, PATH_MAX
+ While we handled missing PATH_MAX, we did not handle missing MAXPATHLEN.
+ This happens under GNU/Hurd, because there is no official limit. However,
+ extremely long pathes are extremely uncommon, so we do not want to
+ use slow dynamic alloc each time we need to build pathes. So we
+ impose a limit of 4KiB, which should be fairly enough. Note that
+ this obviously increases stack requirements in GNU/Hurd.
+ As suggested by Michael Biebl, we have now implemented a generic
+ approach to handle this via autoconf.
+- 2021-09-12: openssl: extended output information on connection failure
+ Now includes the remote client/server IP address in the log output.
+- 2021-09-12: imhttp enhancements - query parameter ingestion & basic auth support
+ - Basic Authentication support & tests
+ * configured via imhttp option "basicAuthFile". This option should be configured
+ to point to your htpasswd file generated via a standard htpasswd tool.
+ tests:
+ * imhttp-post-payload-basic-auth.sh
+ * imhttp-post-payload-basic-auth-vg.sh
+ - Query parameter ingestion capability & tests
+ use t `addmetadata` option to inject query parameters into
+ metadata for imhttp input.
+ DISTRO PACKAGERS BEWARE: NEW DEPENDENCY FOR IMHTTP:
+ libaprutil (libaprutil1-dev on debian'ish, apr-util-devel on Red Hat)
+ Thanks to Nelson Yen for the patch.
+- 2021-09-07: testbench bugfix: privdrop tests under root user did not work
+ When running under root, the privdrop tests did not properly work. This
+ patch fixes the issue and skips test where necessary.
+ This also includes some modernization of the related tests.
+ closes https://github.com/rsyslog/rsyslog/issues/4619
+- 2021-09-07: core/ratelimiting: fix rate limiting for already parsed messages
+ Rate limiting may not have worked if the considered message had already
+ been parsed (not having NEEDS_PARSING in msgFlags).
+ This affects also imuxsock in its default configuration
+ (useSpecialParser="true" and ratelimit.severity="1")
+- 2021-09-07: core bugfix: use of property $wday terminates string
+ When $wday is used inside a template, all template parts after it
+ are ignored. For exmaple:
+ template(name="json_filename" type="string" string="/var/log/%$wday%.log")
+ would generate something like "/var/log/0" - the ".log" part would be
+ missing. For the same reason, $wday can not reliably checked in script
+ filters.
+ Thanks to Alain Thivillon for reporting the bug and providing an
+ excellent analysis, which essentiellay was exactly this fix here.
+ closes https://github.com/rsyslog/rsyslog/issues/4670
+- 2021-09-07: core/queue bugfix: potential misadressing when queue discarded messages
+ When a discard mark was set, the queue was very busy and discarded messages, a
+ NULL pointer access could happen. Depending on circumstances, several problems
+ could occur, including a SEGFAULT. This is now fixed.
+ closes: https://github.com/rsyslog/rsyslog/issues/4437
+- 2021-09-07: imdiga bugfix: iOverallQueueSize calculation could be incorrect
+ This issue only affects testbench and rsyslog development debugging. The active
+ messages counter, used for synchronizing test steps, went wrong when the queue
+ discarded messages on it's consumer thread. Now fixed.
+- 2021-09-06: gnutls driver: SAN priority did not work correctly on server side
+ PrioritizeSAN was not propagated when accepting a new connection, this is now fixed.
+ Thanks to Attila Lakatos for the patch.
+- 2021-08-24: config: implement script-equavalent for $PrivDrop* statements
+ closes https://github.com/rsyslog/rsyslog/issues/891
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2108.0 (aka 2021.08) 2021-08-17
+- 2021-08-16: openssl tls: Improved error message output on tls failures.
+ closes: https://github.com/rsyslog/rsyslog/issues/4645
+- 2021-08-16: impstats: add percentile metrics tracking functionality
+ Brief overview:
+ TO configure tracking percentile metrics in rainerscript:
+ User would need to define:
+ - which percentile to track, such as [p50, p99, etc.]
+ - window size - note, this correlates directly with memory usage to
+ track the percentiles.
+ To track a value, user would call built-in function `percentile_observe()` in their configurations to
+ record an integer value, and percentile metrics would be emitted every
+ impstats interval.
+ Thanks to Nelson Yen for the patch.
+- 2021-08-12: imfile: add parameter "ignoreolderthanoption"
+ instructs imfile not to ingest a file that has not been modified in the
+ specified number of seconds.
+ Thanks to github user yanjunli76 for the patch (submitted from Nelson Yen)
+- 2021-08-10: imklog bugfix: invalid memory adressing, could cause abort
+ This is a regeression from commit 94c4a87. It introduced a free() call
+ using an object that was no longer valid (the main pointer to the
+ to-be-freed object) was already freed at time of use. This could
+ cause various issues, including a segfault.
+ Note: this bug was triggerred only during late phase of rsyslog
+ shutdown, so it did not affect regular operation.
+ Special thanks to github user wxiaoguang for analyzing the issue
+ and providing a draft fix proposal, on which this patch builds.
+ see also https://github.com/rsyslog/rsyslog/pull/4629
+ closes https://github.com/rsyslog/rsyslog/issues/4625
+- 2021-08-09: imfile bugfix: deleteStateOnFileDelete missed some state files
+ When the log file is deleted, imfile would attempt to delete the statefile but it
+ was missing the file_id part of the statefile name. This means the statefiles were
+ only removed in the log file was less than 512 characters, because for very small
+ files the file ID hash is not created. This lead to some state files not being
+ deleted.
+ Thanks to pearseimperva for the patch.
+- 2021-08-09: imfile bugfix: hash char invalidly added in readmode != 0
+ If imfile is ingesting log files with readMode set to 2 or 1, the resulting
+ messages all have a '#' character at the end. This patch corrects the behaviour.
+ Note: if some external script "supported" the bug of extra hash character at
+ the end of line, it may be necessary to update them.
+ closes https://github.com/rsyslog/rsyslog/issues/4491
+- 2021-08-09: omelasticsearch bugfix: errorFile mutex was not consistently locked
+ Lock the file during SIGHUPs to avoid issues with concurrent accesses by
+ writeDataError().
+ Thanks to François Poirotte for the patch.
+- 2021-08-09: imudp: add socket type (IPv4 vs. 6) to input name
+ Most importantly, the input name is used for stats counter names as
+ well. Previously, the same name was used for IPv4 and IPv6, so we had
+ two counters with an equal name. That left users puzzled.
+ Unfortunately, this change can potentially require changes to existing
+ analysis scripts, as the name is now slightly different.
+ closes https://github.com/rsyslog/rsyslog/issues/4364
+- 2021-08-06: omfwd: add capability for action-specific TLS certificate settings
+ This permits to override the global definitions for TLS certificates
+ at the action() level.
+- 2021-08-06: imfile bugfix: file handle leak if "freshStartTail" was turned on
+- 2021-08-05: imtcp: permit to use different certificate files per input/action
+ This completes the ability to override global/default TLS settings at the imtcp
+ input() level. Support for using multiple CAs/Certs per Connection is now provided.
+- 2021-08-04: imptcp bugfix: keep alive interval was incorrectly set
+ The interval was accidentally set to keep alive interval. This has been
+ corrected.
+ closes https://github.com/rsyslog/rsyslog/issues/4609
+- 2021-07-08: openssl network driver bugfix: small memory leak
+ Fixes a static, non-growing memory leak which existed when parameter
+ "GnutTLSPriorityString" was used. This was primarily a cosmetic issue,
+ but caused some grief during development in regard to memory leak
+ detectors.
+ Note: yes, this is for openssl -- the parameter name is historical.
+- 2021-07-07: psrv bugfix: abort if no listener could be started
+ Modules (like imtcp and imdiag) which use tcpsrv could abort or
+ otherwise malfunction if no listener for a specific input could
+ be started.
+ Found during implementing a new feature, no report from practice.
+ But could very well happen.
+- 2021-07-07: mmkubernetes bugfix: apiserver error handling
+ - Added graceful handling of apiserver errors with unexpected responses,
+ i.e., anything other than 200, 404, or 429. Idea is that apiserver
+ transient error state will recover. We don't want mmkubernetes to miss
+ metadata resolution for containers that don't have cached metadata.
+ During these transient error states, mmkubernetes will provide basic
+ container file path based resolution of namespace and pod metadata for
+ new pods whose metadata is not yet cached. After this error state
+ recovers, mmkubernetes is expected to resume its metadata resolution as
+ expected.
+ - Added a unit test case for apiserver return 500 with changes to mock server
+ - Fixed existing unit test that was failing due to missing expected results file
+ - Added mmkubernetes unit tests to testbench
+ Thanks to Abdul Waheed for the patch (submitted from Nelson Yen).
+- 2021-07-07: ommongodb bugfixes
+ - Fix Segmentation fault when server is down
+ - Add server connexion check while resuming
+ Thanks to Kevin Guillemot for the patch.
+- 2021-06-28: omkafka improvements
+ - drain librdkafka queues and retry later during rsyslog restart or hup. This
+ re-injects messages into rsyslog's native queues.
+ - add statsname on per kafka instance for better visibility
+ - omkafka - count errors related ssl as "errors_ssl"
+ Thanks to Nelson Yen for the patch.
+- 2021-06-23: some CI/QA improvements, Travis-CI disabled
+ For the time being, Travis CI is disabled because it was outdated and Travis also
+ changed their system. We will re-evaluate if we re-enable it. Since quite a while
+ the Travits tests were redundant with the rest of CI, so this does not reduce
+ coverage.
+- 2021-06-23: omhttp bugfix: dynrestpath param in batch mode invalid
+ When batchmode was used, the templates could not be used to
+ expand dynrestpath. We are now storing the restpath param
+ within the batch data if we are in batch mode.
+ When we are in batch mode, and the restpath value changes, the
+ batch is submitted and reinitialized
+ closes: https://github.com/rsyslog/rsyslog/issues/4567
+- 2021-06-17: add predefined template RSYSLOG_SyslogRFC5424Format
+ This is essentially the same as RSYSLOG_SyslogProtocol23Format with
+ a better name and a fix to remove the unnecessary LF at the end of
+ the message.
+ The different name also enables us to fix the LF issue without
+ any concern about backwards compatibility.
+ closes https://github.com/rsyslog/rsyslog/issues/4384
+- 2021-06-17: impstats/bugfix: _sender_stats reports integer counter as string
+ Note that this introduces a small backwards incompatibility: in previous output
+ the field was of string type, now it is integer (as intended). We discussed this
+ on the mailing list and the overwhelming thought was that this is not a problem
+ because almost all analysis backends are able to cover that format change. This made
+ the bugfix essentially costmetic.
+ HOWEVER, if you still experience issues, please let us know. We can add an option
+ to provide the previous format, and just spared to do so because there was no
+ evidence it was needed.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2106.0 (aka 2021.06) 2021-06-15
+NOTE: the prime new feature is support for TLS and non-TLS connections
+via imtcp in parallel. Furthermore, most TLS parameters can now be overriden
+at the input() level. The notable exceptions are certificate files, something
+that is due to be implemented as next step.
+- 2021-06-14: new global option "parser.supportCompressionExtension"
+ This permits to turn off rsyslog's single-message compression extension
+ when it interferes with non-syslog message processing (the parser
+ subsystem expects syslog messages, not generic text)
+ closes https://github.com/rsyslog/rsyslog/issues/4598
+- 2021-05-12: imtcp: add more override config params to input()
+ It is now possible to override all module parameters at the input() level. Module
+ parameters serve as defaults. Existing configs need no modification.
+- 2021-05-06: imtcp: add stream driver parameter to input() configuration
+ This permits to have different inputs use different stream drivers
+ and stream driver parameters.
+ closes https://github.com/rsyslog/rsyslog/issues/3727
+- 2021-04-29: imtcp: permit to run multiple inputs in parallel
+ Previously, a single server was used to run all imtcp inputs. This
+ had a couple of drawsbacks. First and foremost, we could not use
+ different stream drivers in the varios inputs. This patch now
+ provides a baseline to do that, but does still not implement the
+ capability (in this sense it is a staging patch).
+ Secondly, we now ensure that each input has at least one exclusive
+ thread for processing, untangling the performance of multiple
+ inputs from each other.
+ see also: https://github.com/rsyslog/rsyslog/issues/3727
+- 2021-04-27: tcpsrv bugfix: potential sluggishnes and hang on shutdown
+ tcpsrv is used by multiple other modules (imtcp, imdiag, imgssapi, and,
+ in theory, also others - even ones we do not know about). However, the
+ internal synchornization did not properly take multiple tcpsrv users
+ in consideration.
+ As such, a single user could hang under some circumstances. This was
+ caused by improperly awaking all users from a pthread condition wait.
+ That in turn could lead to some sluggish behaviour and, in rare cases,
+ a hang at shutdown.
+ Note: it was highly unlikely to experience real problems with the
+ officially provided modules.
+- 2021-04-22: refactoring of syslog/tcp driver parameter passing
+ This has now been generalized to a parameter block, which makes it much cleaner and
+ also easier to add new parameters in the future.
+- 2021-04-22: config script: add re_match_i() and re_extract_i() functions
+ This provides case-insensitive regex functionality.
+ closes https://github.com/rsyslog/rsyslog/issues/4429
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2104.0 (aka 2021.04) 2021-04-20
+- 2021-04-19: new contributed module imhiredis
+ Thanks to Théo Bertin (frikilax) for the patch.
+- 2021-04-19: new built-in function get_property() to access property vars
+ Provides ability to evaluate a rsyslog variable using dynamically
+ evaluated parameters.
+ 1st param is the rsyslog param, 2nd param is a key, can be an array
+ index or key string.
+ Useful for accessing json sub-objects, where a key
+ needs to be evaluated at runtime. Can be used to access arrays as well.
+ Thanks to Nelson Yen for contributing this module.
+- 2021-04-19: mmdblookup: add support for mmdb DB reload on HUP
+ Thanks to Théo Bertin (frikilax) for the patch.
+- 2021-04-19: script bugfix: empty array in foreach() improperly handled
+ When running a foreach() loop inside a ruleset, if the json array/object iterated
+ over is empty but valid, the foreach will make the message processing in the
+ ruleset abort operation, no following operation (such as actions) will be
+ executed after this.
+ Thanks to Théo Bertin (frikilax) for the patch.
+- 2021-04-19: imjournal bugfixes (handle leak, empty file)
+ Flush the FILE* buffer before rename & fsync in order
+ to not end up syncing an empty file.
+ Also, close WorkDir on fsync in order to prevent
+ file descriptor leakage.
+ Thanks to github user gerd-rausch for the fix.
+- 2021-04-06: new contributed function module fmunflatten
+ This commit adds a new rainerscript function to unflatten keys in a JSON tree. It
+ provides a way to expand dot separated fields.
+ <result> = unflatten(<source-tree>, <key-separator-character>);
+ It allows for instance to produce this: { "source": { "ip": "1.2.3.4", "port": 443 } }
+ from this source data: { "source.ip": "1.2.3.4", "source.port": 443 }
+ Thanks to Julien Thomas for the contribution.
+- 2021-02-22: test bugfix: some tests did not work with newer TLS library versions
+ Newer versions provide TLS versions that cannot be disabled in older versions as they
+ are unknown there. This is solved by setting restrictions in multiple steps. For
+ older library versions, the final step will error out, but the other one be applied.
+ This permits to achieve proper test results.
+ closes: https://github.com/rsyslog/rsyslog/issues/4534
+- some improvements to project CI
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2102.0 (aka 2021.02) 2021-02-16
+- 2021-02-15: omfwd: add stats counter for sent bytes
+ Thanks to John Chivian for suggesting this feature.
+- 2021-02-15: omfwd: add error reporting configuration option
+ RSyslog on a plain TCP cannot guarantee the message delivery
+ without using RELP protocol. Besides that the logs may be
+ flooded with connection errors making the rest of messages
+ difficult to find. To alleviate the problem (see issue 3910),
+ this patch adds a configuration option that enables to reduce
+ the number of network errors logged and reported.
+ For example, if each 10th network error message should be logged,
+ the rsyslog configuration has to be updated as follows.
+ action(type="omfwd" Target="<IP_ADDR>" Port="<PORT>" Protocol="tcp" ConErrSkip="10")
+ Thanks to Libor Bukata for the patch.
+- 2021-02-15: action stats counter bugfix: failure count was not properly incremented
+ In some cases the counter was not incremented, most notably with transaction-enabled
+ actions.
+ Thanks to github user thinkst-marco for the patch.
+- 2021-02-15: action stats counter bugfix: resume count was not incremented
+ And so it always stayed at zero.
+ Thanks to github user thinkst-marco for the patch.
+- 2021-02-15: omfwd bugfix: segfault or error if port not given
+ If omfwd is configured via RainerScript config format and the "port"
+ parameter is not given, a segfault will most likely happen on
+ connection establishment for TCP connections. For UDP, this is
+ usually not the case.
+ Alternatively, in any case, errors may happen.
+ Note that the segfault will usually happen right on restart so this
+ was easy to detect.
+ We did not receive reports from practice. Instead, we found the bug
+ while conducting other work.
+- 2021-01-29: lookup table bugfix: data race on lookup table reload
+ A data race could happen when a lookup table was reloaded. We found
+ this while moving to newer version of TSAN, but have no matching
+ report from practice. However, there is a potential for this to cause
+ a segfault under "bad circumstances".
+- 2021-01-18: testbench modernization
+ Bump dependency versions, use newer distro versions for some tests.
+ Make kafka distcheck separate to help diagnose flaky kafka tests.
+- 2021-01-16: testbench: fix invalid sequence of kafka tests runs
+ kafka tests can not run well in parallel (mostly due to ressource
+ constraints on CI machines). Accidentally, this was not enforced for
+ one of the tests. That could lead to random failures and false positives.
+- 2021-01-14: testbench: fix kafkacat issues
+ The kafkacat tool has an upper limit of how many messages it can send
+ at once. Going over that limit causes messages loss. The exact limit
+ seems to depend on the environment. This causes testbench false positives.
+ This commit fixes two related issues:
+ - errors during kafkacat run were not detected - this has been added
+ - we now have a "max messages at once" setting, after which kafkacat
+ is restarted for the next batch of messages. It currently is set
+ to 25,000 msgs per incarnation. All tests loop now to send the
+ required number of messages. This has been fixed at the testbench
+ framework level, so no need to adjust individual tests.
+- 2021-01-14: testbench: fix year-dependendt clickhouse test
+ A test had the year value hardcoded and as such failed whenever the
+ year changed. This patch corrects that.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2012.0 (aka 2020.12) 2020-12-08
+- 2020-12-07: testbench bugfix: some tests did not work in make distcheck
+ - certificate file missing in dist tarball
+ - some test cases did not properly specify path to cert file
+ Thanks to Michael Biebl for alerting us and providing part of
+ the fix.
+ closes https://github.com/rsyslog/rsyslog/issues/4446
+- 2020-12-07: immark: rewrite with many improvements
+ - mark message text can now be specified
+ - support for rulesets
+ - support for using syslog API vs. regular internal interface
+ - support for output template system
+ - ability to specify is mark message flag can be set
+ - minor changes and improvements
+- 2020-11-30: usability: re-phrase error message to help users better understand cause
+ see also https://github.com/rsyslog/rsyslog/issues/3910
+- 2020-11-10: add new system property $now-unixtimestamp
+ Among others, this may be used as a monotonic counter
+ for doing load-balancing and other things.
+ Thanks to Nicholas Brown for suggesting this feature.
+- 2020-11-04: omfwd: add new rate limit option
+ Adding new rate limit option to omfwd for rate limiting
+ syslog messages sent to the remote server
+ ratelimit.interval:
+ Specifies the rate-limiting interval in seconds.
+ Default value is 0, which turns off rate limiting.
+ ratelimit.burst
+ Specifies the rate-limiting burst in number of messages.
+ closes https://github.com/rsyslog/rsyslog/issues/4423
+ Thanks to Dinesh-Ramakrishnan for the patch.
+- 2020-11-03: omfwd bug: param "StreamDriver.PermitExpiredCerts" is not "off" by default
+ The default behaviour of expired certificates of stream driver in TLS mode, should
+ have been that the see tcp transmission is closed due to expired certificates, and
+ error messages emited in rsyslog status. This was not the case. That in turn could
+ lead to permitting sessions which should not be permitted.
+ Thanks to Vincent Zhu for alerting us and providing a great problem analysis
+ closes: https://github.com/rsyslog/rsyslog/issues/4425
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2010.0 (aka 2020.10) 2020-10-20
+- 2020-10-13: gnutls TLS subsystem bugfix: handshake error handling
+ If the tls handshake does not immediatelly finish, gnutls_handShake is called in
+ doRetry handler again. However the error handling was not
+ complete in the doRetry handler. A failed gnutls_handShake call
+ did not abort the connection and properly caused unexpected
+ problems like in issues:
+ https://github.com/rsyslog/rsyslog/issues/4270
+ https://github.com/rsyslog/rsyslog/issues/4288
+- 2020-10-13: core/msg bugfix: memory leak
+ There is a missing call to json_object_put(json) if the call to
+ jsonPathFindParent() failed. It's leaking memory. Depending on workload and config,
+ this leak can potentially grow large (albeit we did not see reports from practice).
+ Thanks to Julien Thomas for the patch.
+- 2020-10-13: core/msg bugfix: segfault in jsonPathFindNext() when <root> not an object
+ The segfault gets happens when <bCreate> is 1 and when the <root>
+ container where to insert the <namebuf> key is not an object.
+ Here is simple reproducible test case:
+ // ensure we start fresh
+ // unnecessary if there was no previous set
+ unset $!;
+ set $! = "";
+ set $!event!created = 123;
+ Thanks to Julien Thomas for the patch.
+- 2020-10-13: openssl TLS subsystem: improvments of error and status messages
+ Adding error logs at the ssl handshake failure scenarios.
+ Adding the header "nsd_ossl:" tag to these logs to identify
+ the origin module from which logs are generated.
+ Thanks to Anusha Pai G for the patch.
+- 2020-10-06: add 'exists()' script function to check if variable exists
+ This implements a way to check if rsyslog variables (e.g. '$!path!var') is
+ currently set of not.
+ Sample: if exists($!somevar) then ...
+ closes https://github.com/rsyslog/rsyslog/issues/4385
+- 2020-10-03: core bugfix: do not create empty JSON objects on non-existent key access
+ Performing a condition (eg: check for an empty string) on a subtree key that do not
+ exists (depth > 1 from the root container), creates an empty "parent" object.
+ Depending on your context, you may end up with (kind of...) annoying garbage when
+ producing object documents (for instance to index in ES).
+ Also fixes a hypothetical hang condition with an almost (?) unused plugin parameter
+ passing mode, for details see
+ https://github.com/rsyslog/rsyslog/issues/4436
+ closes https://github.com/rsyslog/rsyslog/issues/4430
+ Thanks to Julien Thomas for the patch.
+- 2020-09-28: gnutls subsysem bugfix: potential hang on session closure
+ Some TLS servers don't reply to graceful shutdown requests "for
+ optimization". This results in rsyslog's omfwd+gtls client to wait
+ forever for a reply of the TLS server which never comes, due to shutting
+ down the connection with gnutls_bye(GNUTLS_SHUT_RDWR).
+ On systemd systems, commands such as "systemctl restart rsyslog" just
+ hang for 1m30 and rsyslogd gets killed upon timeout by systemd.
+ This is fixed by replacing the call to gnutls_bye(GNUTLS_SHUT_RDWR) by calls to
+ gnutls_bye(GNUTLS_SHUT_WR) which is sufficient and doesn't wait for a
+ server reply.
+ As an example, Kiwi Syslog server is known to cause this issue.
+ Thanks to Renaud Métrich for the patch.
+- 2020-09-23: core/network bugfix: obey net.enableDNS=off when querying local hostname
+ Local hostname resolution used DNS queries even if the enableDNS was set to off, and
+ this could cause unexpected delays in the HUP signal handling if the DNS server was
+ not responsive.
+ Thanks to Samu Nuutamo for the fix.
+- 2020-09-14: core bugfix: potential segfault on query of PROGRAMNAME property
+ A data race can happen on variable iLenProgram as it is not guarded
+ by the message mutex at time of query. This can lead to it being
+ non -1 while the buffer has not yet properly set up.
+ Thanks to Leo Fang for alerting us and a related
+ patch proposal.
+ replaces https://github.com/rsyslog/rsyslog/pull/4300
+- 2020-09-14: imtcp bugfix: broken connection not necessariy detected
+ Due to an invalid return code check, broken TCP sessions could not
+ necessarily be detected "right in time". This can result is the loss
+ of one message.
+ closes https://github.com/rsyslog/rsyslog/issues/4227
+ Thanks to Leo Fang for the patch.
+- 2020-09-14: new module: imhttp - http input
+ permits to receive log data via HTTP.
+ uses http library to provide http input.
+ user would need to configure an 'endpoint' as input, along
+ with a ruleset, defining how the input should be routed in
+ rsyslog.
+ Thanks to Nelson Yen for contributing this module.
+- 2020-09-11: mmdarwin bugfix: potential zero uuid when reusing existing one
+ - fix a use-after-free variable during darwin uuid message extraction
+ - improve debug/output by logging uuid parse errors
+ Thanks to github user frikilax for the patch.
+- 2020-09-10: imdocker bugfix: build issue on some platforms
+ An invalid variable type was used, leading to compile errors at least on
+ all platform that use gcc 10 and above. Otherwise, however, it looks like the
+ issue caused no real harm.
+- 2020-09-07: omudpspoof bugfix: make compatbile with Solaris build
+ Thanks to Dagobert Michelsen for the patch.
+- 2020-09-03: testbench fix: python 3 incompatibility
+- 2020-09-02: core bugfix: segfault if disk-queue file cannot be created
+ When using Disk Queue and a queue.filename that can not be created
+ by rsyslog, the service does not switch to another queue type as
+ supposed to and crashes at a later step.
+ closes: https://github.com/rsyslog/rsyslog/issues/4282
+- 2020-08-26: cosmetic: fix dummy module name in debug output
+ When we have optional components (like imjournal) a dummy module
+ is used. It's sole purpose is to emit "this module is not available".
+ During init, the module emitted an invalid module name into the debug
+ log. This has now been replaced by the generic term "dummy".
+ Note: it is highly unlikely that someone will ever see that message
+ at all, as it is unlikely for the dummy modules to be build.
+ see also: https://github.com/rsyslog/rsyslog/commit/84a7e3d80b80106dcc86c273ed8cf78a6c11c722#r41782830
+ Thanks to Thomas D. (whissi) for the patch.
+- 2020-08-26: config bugfix: intended warning emitted as error
+ When there are actions configured after a STOP, a warning should be
+ emitted. In fact, an error message is generated. This prevents the
+ construct, which may have some legit uses in exotic settings. It
+ may also break older configs, but as the message is an error
+ for so long now, this should be no longer of concern.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2008.0 (aka 2020.08) 2020-08-25
+- 2020-08-25: imdocker bugfix: error reporting not always correct
+ A wrong function to obtain the error code was used. This
+ could lead to invalid error messages.
+ Thanks to Steve Grubb for the bug report and fix proposal.
+ closes https://github.com/rsyslog/rsyslog/issues/4381
+- 2020-08-25: imptcp: add max sessions config parameter
+ The max is per-instance, not global across all instances.
+ There is also a bugfix where if epoll failed I think we could leave a
+ session linked in the list of sessions, this code unlinks it.
+ Thank to Alfred Perlstein for the patch.
+- 2020-08-24: omelasticsearch bugfix: reply buffer reset after health check
+ The issue happens when more than one server is defined on the
+ action. On that condition a health check is made through
+ checkConn() before sending the POST. The replyLen should be
+ set back to 0 after the health check, otherwise the response
+ data received from the POST gets appended to the end of the
+ last health check.
+ Thanks to Julien Thomas for the patch.
+- 2020-08-14: omfile: do no longer limit dynafile cache size in legacy format
+ When using obsolete legacy config format, omfile had a hard limit of
+ 1,000 dynafile cache entries. This does not play well with very
+ large installation. This limit is now removed and converted into
+ a warning if cache size > 25,000 is specified.
+ Note: the problem can easily be worked-around by using modern
+ config format (RainerScript).
+ closes: https://github.com/rsyslog/rsyslog/issues/4241
+- 2020-08-13: imudp: fix very small, static memory leak
+ When ruleset support was used, the ruleset name was not freed upon rsyslog
+ termination. While this has no consequences for regular runs, it generates
+ leak errors under memory debuggers and as such makes debugging harder than
+ necessary.
+ Thanks to github user frikilax for the patch.
+- 2020-08-13: omelasticsearch: add parameter skipPipelineIfEmpty
+ When POST'ing a document, Elasticsearch does not allow an empty pipeline
+ parameter value. This patch introduces boolean option skipPipelineIfEmpty
+ to the omelasticsearch action. When set to true, the pipeline parameter
+ won't be posted. Default is false so we do not modify current behavior.
+ Thanks to Julien Thomas for the patch.
+- 2020-08-12: systemd service file removed from project
+ This was done as distros nowadays have very different service files and it no
+ longer is useful to provide a "generic" (sic) example.
+ see also: https://github.com/rsyslog/rsyslog/issues/4333
+- 2020-08-11: gnutls TLS driver bugfix: EKU check not done properly
+ When the server accepted a new connection, it did not properly set the
+ dataTypeCheck field based on the listening socket. That resulted in
+ skipping ExtendedKeyUsage (EKU) check on the client.
+ Thanks to Daiki Ueno for the patch.
+- 2020-08-06: MMDARWIN:: improve configuration flexibility and UUID fix
+ -t pu now able to get fields from local variables ($.)
+ - now able to configure a custom root container for mmdarwin fields
+ - now able to put nested keys ($!key1!key2)
+ - don't regenerate a UUID each time, but instead check if one exists before
+ creating it (allow successive calls without losing previous UUID)
+ Thanks to github user frikilax for the contribution.
+- 2020-08-06: add --enable-imjournal=optional ./configure option
+- 2020-08-06: IMPCAP::Fixes: segfault, memory and build corrections
+ * fix bug in ethernet packets parsing
+ * fix removes build error with gcc10: 'multiple definition of...'
+ * resolve memory leak during interface init failure (device not freed after post-create error)
+ * add test 'impcap_bug_ether' to prove ethernet parser fix is working
+ Thanks to github user frikilax for the contribution.
+ closes https://github.com/rsyslog/rsyslog/issues/4332
+- 2020-07-14: CI: add support for github actions
+- 2020-07-14: imklog: add ruleset support
+ see also: https://github.com/rsyslog/rsyslog/issues/4344#issuecomment-658001854
+ see also: https://github.com/rsyslog/rsyslog/issues/106
+- 2020-07-06: config system fix: ChkDisabled method to make config.enabled work
+ There was wrong negation in the method so it returned 0/1 in reverse
+ and also it did not mark the node to not be reported as unknown at all
+ times which is needed after all.
+ Thanks to Jiri Vymazal for the patch.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2006.0 (aka 2020.06) 2020-06-23
+- 2020-06-22: queue: permit ability to double size at shutdown
+ This prevents message loss due to "queue full" when re-enqueueing data
+ under quite exotic settings.
+ see also https://github.com/rsyslog/rsyslog/issues/3941#issuecomment-549765813
+ closes https://github.com/rsyslog/rsyslog/issues/4020
+- 2020-06-22:Fixing imfile segfaulting on selinux denial
+ If imfile is denied access to file watched trough symlink there is
+ unchecked condition resulting in access to not initialized memory.
+- 2020-06-22: openssl: Fixed memory leak when tls handshake failed.
+ closes: https://github.com/rsyslog/rsyslog/issues/4319
+- 2020-06-22: change systemd service file to wait for network
+ now that rsyslog is usually only installed for real syslog servers,
+ we should assume that some network listening or forwarding happens
+ on start. As such we need to start a bit later, after the network.
+ This poses no problem as systemd nowadays comes with journal which
+ is in almost all cases configured to buffer log data while
+ rsyslog is not yet running.
+ see also https://github.com/rsyslog/rsyslog-pkg-rhel-centos/issues/72
+- 2020-06-22: NEW INPUT MODULE:: impcap, network packets input parser
+ Thanks to github user frikilax for the contribution.
+- 2020-06-22: ksi bugfix: Optimized code in KSI module initialization fixed.
+ KSI module initialization will not stuck in infinite loop when code is
+ built with optimization -O2.
+- 2020-06-05: operatingstatefile bugfix: month was given too low
+ The month was printed with the range 0 (January) to 11 (December).
+ This has now been corrected.
+ closes https://github.com/rsyslog/rsyslog/issues/4292
+- 2020-06-05: build system: add "optional" build functionality to some components
+ Nameley:
+ --enable-libdbi=optional
+ --enable-mmdblookup=optional
+ --enable-imkafka=optional
+ --enable-omkafka=optional
+ If used, builds a dummy module which just emits a "module not supported
+ on this platform" error message when loaded.
+ Primary use case for this system is Debian-ish builds on SUSE OBS,
+ where we prefer to have a single package definition for all versions
+ (else things get much more complicated).
+- 2020-05-23: config system bugfix: backticks cat segfault if file cannot be opened
+ when a `cat <filename>` construct is used in rsyslog.conf and <filename> can not
+ be accessed (does not exist, no permissions, ...), rsyslog segfaults.
+ Thanks to Michael Skeffington for notifying us and providing root cause analysis.
+ closes https://github.com/rsyslog/rsyslog/issues/4290
+- 2020-05-15: imtcp bugfix: octet framing/stuffing problem with discardTruncatedMsg on
+ When "discardTruncatedMsg" was enabled in imtcp, messages were incorrectly
+ skipped if the last character before the truncation was the LFdelimiter.
+ Also adds two testbench tests for this case.
+ closes: https://github.com/rsyslog/rsyslog/issues/4281
+- 2020-05-12: ompipe bugfix: race during HUP
+ When HUP was received, the write mutex was not acquired. This could
+ lead to unexpected invalidation of the output file descriptor.
+ Thanks to Julien Thomas for alerting us on this issue.
+ see also https://github.com/rsyslog/rsyslog/pull/4136#issuecomment-578326278
+- 2020-05-12: ompipe: add action parameter tryResumeReopen
+ Sometimes we need to reopen a pipe after an ompipe action gets
+ suspended. Sending an HUP signal to rsyslog does the job but requires
+ an interraction with rsyslog. The patch adds support for a new boolean
+ option, tryResumeReopen, for the ompipe action. It mimics what an HUP
+ signal would do.
+ Thanks to Julien Thomas for the patch.
+- 2020-05-12: imjournal: remove strcat call
+ Thanks to Jeff Marckel for the patch.
+- 2020-05-12: build system: libzcmq version requirement needs to be bumped
+ Thanks to Thomas Deutschmann for pointing this out.
+ closes https://github.com/rsyslog/rsyslog/issues/3957
+- 2020-05-12: testbench: download ElasticSearch binaries from rsyslog.com
+ The official ElasticSearch download site sometimes denies the download.
+- 2020-05-11: openssl netstream driver bugfix: context leak
+ The context object was not properly freed.
+ Thanks to Michael Zimmermann for the fix.
+- 2020-05-11: omhttp: Add support for multiple http headers
+ Allows the inclusion of multiple http headers on the REST call.
+ Thanks to callmegar for the patch.
+- 2020-04-29: core bugfix: group id could not be obtained for very large groups
+ Thanks to github user emilbart for the patch.
+- 2020-04-29: testbench additions (relp broken connection test)
+- 2020-04-29: omudpspoof bugfix: issues with oversized messages
+ First issue was an incorrect packet length in UDP Header. It has to be the FULL UDP Packet
+ regardless of the MTU Setting. As a result regardless of IP fragmentation, the MTU setting
+ also limited the siizmax size of the UDP message.
+ The second issue was incorrect calculation of the UDP Checksum with libnet if
+ IP fragmentation was used (Based on MTU Setting). As a result, the network packets were
+ dropped by the tcp stack before they even could reach there target. The workarround for this
+ problem is, that we set the UDP Checksum to 0x0000 which allows skipping of the checksum
+ test. Fixing the problem by calculating the correct UDP Checksum would require some
+ code changes in the libnet.
+ Also fixed the omudpspoof bigmsg test and increased the testing size to 16KB.
+- 2020-04-29: omprog: fix assert failed on HUP with output flag
+ If the 'output' setting of omprog was used and rsyslog received a HUP
+ signal just after starting (and before the omprog action received the
+ first log to process), an internal assertion could fail, causing
+ rsyslog to terminate. The failure message was "rsyslogd: omprog.c:660:
+ closeOutputFile: Assertion `pCtx->bIsRunning' failed."
+ The failure could also occur if rsyslog received a HUP signal during
+ the shutdown sequence.
+ This bug was introduced in v8.2004 by PR https://github.com/rsyslog/rsyslog/pull/4255
+ Although a test already existed that checked the interaction of HUPs
+ with the 'output' setting, it didn't always fail in this particular case
+ due to timing conditions. The test has been improved to cover this case
+ more reliably.
+ Thanks to Joan Sala Isern for the patch.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2004.0 (aka 2020.04) 2020-04-28
+- 2020-04-28: ksi bugfix: When KSI module is suddenly closed, files are finalized
+ In async. mode all pending signature requests are closed immediately and
+ unsigned block marker is attached with message about sudden closure.
+ Similar approach is used for blocks that already contain some records.
+ Empty blocks are just closed without any metadata.
+ Thanks to Taavi Väljaots for the patch.
+- 2020-04-28: ksi bugfix: Signer thread initialization is verified before usage.
+ When signer thread is created in rsksiInitModule thread successful
+ initialization is verified before returning the function. This will
+ prevent adding records to not initialized module and in case of an
+ error signature files opened will contain only magic bytes.
+ Thread flags replaced with thread state.
+ When init module fails, module is disabled.
+ Thanks to Taavi Väljaots for the patch.
+- 2020-04-28: ksi bugfix: Hardcoded default hash algorithm replaced with 'default'
+ Instead of hardcoded SHA-256 KSI_getHashAlgorithmByName("default")
+ is used to get default hash function.
+ Function rsksiSetHashFunction and SetCnfParam updated.
+ Thanks to Taavi Väljaots for the patch.
+- 2020-04-28: imfile bugfix: poential segfault in stream object on file read
+ - if cstrLen(pThis->prevMsgSegment) > maxMsgSize then len calculation
+ become negative if cstrLen(thisLine) < cstrLen(pThis->prevMsgSegment)
+ This causes illegal access to memory location and thus causing segfault.
+ - assigning len = 0 if cstrLen(pThis->prevMsgSegment) > maxMsgSize so that
+ it access the correct memory location.
+ Thanks to github user jaankit
+- 2020-04-28: openssl TLS drivers: made more reliable for older openssl versions
+ OpenSSL can retry some failed operations, but older versions need an explicit
+ opt-in to do so. This is now done.
+- 2020-04-28: omprog: fix bad fd errors in daemon mode
+ When omprog was used with the 'forceSingleInstance=on' option, and/or
+ the 'output' setting, "bad file descriptor" errors occurred, which
+ prevented the external program to be executed and/or the program output
+ to be correctly captured. The bug could also manifest as "resource
+ temporarily unavailable" errors, or other errors related to the use of
+ invalid/reassigned file descriptors. These errors only happened when
+ rsyslog ran in daemon mode (i.e. they didn't happen if rsyslogd was
+ run with the '-n' option).
+ The cause of the bug was that omprog opened the pipe fds needed by
+ these flags during the configuration load phase (in the 'newActInst'
+ module entrypoint). This is a bad place since the fork of the daemon
+ occurs after this phase, and all fds are closed when the daemon process
+ is started (see 'initAll' in rsyslogd.c), hence invalidating the
+ previously opened fds.
+ To correct this, the single child process and the output capture thread
+ are now started later, when the first log message is received by the
+ first worker thread. (Note: the 'activateCnf' module entrypoint, despite
+ being invoked after the fork, cannot be used for this purpose, since it
+ is invoked per module, not per action instance.)
+ Currently no automated test exists for this use case since the testbench
+ always runs rsyslog in non-daemon mode.
+ Affected versions: v8.38 and later
+ closes: https://github.com/rsyslog/rsyslog/issues/4247
+ Thanks to Joan Sala Isern for the patch.
+- 2020-04-28: omfile bugfix: $outchannel split log lines at rotation time
+- 2020-04-17: openssl: add support for libreSSL
+ Disable use of "@SECLEVEL" in default cipher string and
+ avoid SSL_CONF_CTX_set_flags() API when LIBRESSL is used.
+ This means tlscommands will not work.
+ closes: https://github.com/rsyslog/rsyslog/issues/4210
+- 2020-03-04: imudp bugfix: build problems on some Linux kernel versions
+ Thanks to Wen Yang for the patch.
+- 2020-03-02: conf output bugfix: -o produces missing space between call and rulename
+ Thanks to Tetiana Ohnieva for the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/3761
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2002.0 (aka 2020.02) 2020-02-25
+- 2020-02-25: imfile: add per minute rate limiting
+ Add MaxBytesPerMinute and MaxLinesPerMinute options.
+ These take integer values and, respectively, limit the number
+ of bytes or lines that may be sent in a minute.
+ This can be used to put a limit on the count or volume of logs
+ that may be sent for an imfile.
+ Thanks to Greg Farrell for the patch.
+- 2020-02-24: core: add global parameter "security.abortOnIDResolutionFail"
+ This parameter controls whether or not rsyslog aborts when a name ID
+ lookup fails (for user and group names). This is necessary as a security
+ measure, as otherwise the wrong permissions can be assigned or privileges
+ are not dropped.
+ CHANGE OF BEHAVIOR
+ The default for this parameter is "on". In previous versions, the default
+ was "off" (by virtue of this parameter not existing). As such, existing
+ configurations may now error out.
+ We have decided to accept this change of behavior because of the potential
+ security implications.
+ closes https://github.com/rsyslog/rsyslog/issues/4164
+- 2020-02-24: openssl TLS driver bugfix: chained certificates were not accepted
+ This was supported since always inside GnuTLS driver, but was missing for openssl one.
+- 2020-02-24: core bugfix: too early parsing of incoming messages
+ In theory, rsyslog should call parsers on the queue worker threads whenever
+ possible. This enables the parsers to be executed in parallel. There are
+ some cases where parsers needs to be called earlier, namely when parsed
+ data is needed for rate-limiting.
+ The logic to do this previously did not work correctly and was fixed six
+ years ago (!) by b51dd22. Unfortunately, b51dd22 was overly agressive:
+ it actually makes the early parser call now mandatory, effectively moving
+ parsing to the input side where there is no to little concurrency.
+ We still do not need to call the parser when all messages, regardless of
+ severity, need to be rate-limited. This is the default and very frequent
+ case. This patch introduces support for this and as such makes parsers
+ able to run in parallel in the frequent case again.
+ closes https://github.com/rsyslog/rsyslog/issues/4187
+- 2020-02-20: testbench bugfix: two minor issues in omkafkadynakey.sh test
+ lead to false positives during test runs (depending on circumstances)
+ closes: https://github.com/rsyslog/rsyslog/issues/4134
+- 2020-02-20: testbench: set max extra data length for tcpflood from 200 to 512KiB
+ Added a imrelp test for big messages (256KB).
+ closes: https://github.com/rsyslog/rsyslog/issues/4158
+- 2020-02-20: config system bugfix: 'config.enabled' directive oddities
+ Previously the directive was processed way too late which caused false
+ errors whenever it was set to 'off' and possibly other problems.
+ Thanks to Jiri Vymazal for the patch.
+- 2020-02-09: imfile bugfix: timeout did not work on very busy system
+ The timeout feature was soley based on timeouts of the poll()
+ system call. On a very busy system, this would probably happen
+ very seldomly. Moreover, the timeout could occur later than
+ expected on any system with high load.
+ The issue was not reported from practice but discovered during
+ CI system improvements.
+- 2020-01-30: build system: change --enable-imfile-tests default to "yes"
+ This was accidentally set to "no" some time ago (actual commit unknown). Tests for
+ imfile should by default run when imfile is enabled.
+ see also https://github.com/rsyslog/rsyslog/issues/4120
+- 2020-01-27: build system: add option --enable-gnutls-tests
+ This enables us to build GNUtls support but not necessarily
+ test it in CI. This is useful for some specialised subcomponent
+ test. The default is enabled if gnutls is enabled and disabled if not.
+- 2020-01-26: testbench: new test for loadbalancing via global vars
+ This is a popular functionality which had not been routinely tested
+ in the past.
+- 2020-01-26: mmdblookup bugfix: invalid data returned when no entry found
+ Since the upgrade of the package libmaxminddb on FreeBSD (1.3.2_2 -> 1.4.2),
+ the module mmdblookup returns the first entry of the mmdb database even if the entry
+ is not found. After some debug, I found the solution in the official maxminddb
+ repository : to check if the entry is in database, we must check the found_entry
+ attribute, otherwise the function MMDB_get_entry_data_list will return the first
+ entry of the database if the entry is not found in it.
+ Thanks to Kevin Guillemot for the patch.
+- 2020-01-23: oversize message log bugfix: do not close fd -1
+ The oversize message log fd is always closed on HUP, even if it never
+ was opened (and thus has -1 value). This patch corrects the issue.
+ The bug had no know-bad effect in practice other than getting an
+ (ignored) error status from close(). However, it introduced warnings
+ in test runs (e.g. when running under valgrind).
+- 2020-01-22: imfile bugfix: saving of old file_id for statefiles
+ Previously we saved old file_id unconditionally, which led to not
+ deleting old statefiles if files changes without rsyslog running.
+ Now it should work correctly.
+ Thanks to Jiri Vymazal for the patch.
+- 2020-01-22: imfile bugfix: misadressing and potential segfault
+ Commit 3f72e8c introduced an invalid memory allocation size. This lead to
+ too-short alloc and thus to overwrite of non-owned memory. That in turn
+ could lead to segfaults or other hard to find problems.
+ The issue was detected by our upgraded CI system. We did not receive
+ any problem reports in practice. Nevertheless, the problem is real and
+ people should update affected versions to patched ones.
+ The bug was present in scheduled stable release 8.1911.0 and 8.2001.0.
+ see also: https://github.com/rsyslog/rsyslog/issues/4120
+ see also: https://github.com/rsyslog/rsyslog/pull/4141
+- 2020-01-20: core bugfix: potential race during HUP
+ when rsyslog is HUPed immediately after startup and before it is fully
+ initialized, there is a potential race with the list of loaded modules.
+ This patch ensures no bad things can happen in that case.
+ Detected by LLVM TSAN, not seen in practice.
+- 2020-01-20: testbench improvements and fixes
+ modernize tests, reduce robustness against slow machines, provide some
+ test framework functional enhancements, and optimize some tests.
+ Also includes some code changes to C testing components. Among others,
+ tests have slightly been speeded up by reducing the wait time at queue
+ shutdown. This is possible because of better overall completion checks.
+----------------------------------------------------------------------------------------
+Scheduled Release 8.2001.0 (aka 2020.01) 2020-01-14
+- 2020-01-12: core bugfix: race condition related to libfastjson when using DA queue
+ Rsyslogd aborts when writing to disk queue from multiple workers simultaneously.
+ It is assumed that libfastjson is not thread-safe.
+ Resolve libfastjson race condition when writing to disk queue.
+ see also https://github.com/rsyslog/rsyslog/issues/4041
+ Thanks to MIZUTA Takeshi for the fix.
+- 2020-01-12: omfwd bugfix: parameter streamdriver.permitexpiredcerts did not work
+ closes https://github.com/rsyslog/rsyslog/issues/4098
+- 2020-01-11: Bugfix: KSI module + dynafile in asynchronous mode fixed
+ Thanks to Taavi Valjaots for the patch
+- 2020-01-08: tls driver: add support to configure certificate verify depth
+ Support added in omfwd as instance parameter:
+ streamdriver.TlsVerifyDepth
+ Support added in imtcp as module parameter:
+ streamdriver.TlsVerifyDepth
+ Can be 2 or higher.
+ Support added into ossl driver
+ Support added into gtls driver
+ Added testcases for both drivers.
+ closes: https://github.com/rsyslog/rsyslog/issues/4035
+- 2020-01-08: modernization of testbench
+ moved some tests to newer standards, hardened them against slow testbench machines,
+ kafka component download improvements, and prevent dangling left-over test tool
+ instances from aborted tests
+- 2020-01-07: tls subsystem bugfix: default for permitExpiredCerts was invalidly "on"
+ The problem occurred with commit 3d9b8df in December 2018 and went into
+ scheduled stable 8.1901.0. Unfortunately, the change in default was not detected
+ until a year later. This commit re-enables the previous default ("off"), which is
+ also the only sensible default from a security PoV. Unfortunately, new 2019
+ deployments may begin to see connection rejection when usin expired certs. As
+ expired certs should not be used, this hopefully will not cause problems in
+ practice.
+ Thanks to Jiri Vymazal for the patch.
+- 2020-01-01: testbench: improve ElasticSearch test speed
+ We now support re-using suitable running ES instances, which reduces the
+ number of restarts.
+- 2019-12-31: omelasticsearch: improve curl reply buffer handling
+ The curl reply buffer (pWrkrData->reply) was allocated, realloced and freed with
+ each request. This has now been reduced to once per module, slightly increasing
+ overall performance.
+ closes https://github.com/rsyslog/rsyslog/issues/1964
+- 2019-12-31: config system: emit proper error message on $ in double-quoted string
+ closes https://github.com/rsyslog/rsyslog/issues/2869
+- 2019-12-30: core bugfix: rsyslog aborts when config parse error is detected
+ In defaut settings, rsyslog tries to continue to run, but some data
+ structures are not properly initialized due to the config parsing error.
+ This causes a segfault.
+ In the following tracker, this is the root cause of the abort:
+ see also https://github.com/rsyslog/rsyslog/issues/2869
+- 2019-12-30: fix some alignment issues
+ So far, this worked everywhere (for years). But it may still have
+ caused issues on some platforms.
+ closes https://github.com/rsyslog/rsyslog/issues/2608
+- 2019-12-27: core bugfix: APP-NAME fields could become empty
+ RFC 5424 specifies that an empty APP-NAME needs to be indicated by
+ "-". Instead, the field could become empty under certain conditions.
+ If so, outgoing 5424 messages were invalidly formatted.
+ This happened under quite unusual conditions, but could be seen
+ in practice.
+ closes https://github.com/rsyslog/rsyslog/issues/4043
+- 2019-12-27: core bugfix: reopen /dev/urandom file descriptor after fork on Linux
+ This patch updates prepareBackground() in tools/rsyslogd.c to reopen any file
+ descriptors used for random number generation in the child process. This fixes
+ an issue on Linux systems where the file descriptor obtained for /dev/urandom
+ by seedRandomNumber() in runtime/srutils.c was left closed after the fork. This
+ could be observed in procfs, where /proc/fd/ would show no open descriptors to
+ /dev/urandom in the forked process. /dev/urandom is reopened as the child may be
+ be operating in a jail, and so should not continue to use file descriptors from
+ outside the jail (i.e. inherited from the parent process).
+ I found that this issue led to rsyslog intermittently hanging during seedIV()
+ in runtime/libgcry.c. After the fork, the closed file descriptor number tended
+ to get re-assigned. randomNumber() would then read from an incorrect (although
+ still valid) file descriptor, and could block (depending on the state of that
+ file descriptor). This gave rise to the intermittent hang that I observed.
+ Thanks to Simon Haggett for the patch.
+- 2019-12-20: imdocker bugfix: did not compile without atomic operations
+- 2019-12-20: omclickhouse: new parameter "timeout"
+ Thanks to Pavlo Bashynskiy for the patch.
+- 2019-12-20: omhiredis: add 'set' mode plus some fixes
+ - new mode 'set' to send SET/SETEX commands
+ - new parameter 'expiration' to send SETEX instead of SET commands (only applicable to 'set' mode)
+ - fixes to missing frees
+ Thanks to github user frikilax for the patch.
+- 2019-12-18: relp: Add support setting openssl configuration commands.
+ Add new configuration parameter tls.tlscfgcmd to omrelp and imrelp.
+ (Using relpSrvSetTlsConfigCmd and relpCltSetTlsConfigCmd)
+ OpenSSL Version 1.0.2 or higher is required for this feature.
+ A list of possible commands and their valid values can be found in the
+ documentation: https://www.openssl.org/docs/man1.0.2/man3/SSL_CONF_cmd.html
+ The setting can be single or multiline, each configuration command is
+ separated by linefeed (n). Command and value are separated by
+ equal sign (=). Here are a few samples:
+ tls.tlscfgcmd="Protocol=ALL,-SSLv2,-SSLv3,-TLSv1,-TLSv1.2"
+ tls.tlscfgcmd="Protocol=ALL,-SSLv2,-SSLv3,-TLSv1
+ MinProtocol=TLSv1.2"
+ Add to new testcases for librelp and tlscfgcmd.
+ closes https://github.com/rsyslog/rsyslog/issues/3959
+- 2019-12-18: bugfix core: potential segfault in template engine
+ under some circumstances (not entirely clear right now), memory
+ was freed but later re-used as state-tracking structures were not
+ properly maintained. Github issue mentioned below has full details.
+ Thanks to github user snaix for analyzing this issue and providing
+ a patch. I am committing as myself as snaix did not disclose his or
+ her identity.
+ closes https://github.com/rsyslog/rsyslog/issues/3019
+ closes https://github.com/rsyslog/rsyslog/issues/4040
+- 2019-12-18: fixed some minor issues detected by clang static analyzer 9
+- 2019-12-10: core/config bugfix: false error msg when config.enabled="on" is used
+ When the 'config.enabled="on"' config parameter an invalid error message
+ was emitted that this parameter is not supported. However, it was still
+ applied properly. This commit removes the invalid error message.
+ closes https://github.com/rsyslog/rsyslog/issues/4011
+- 2019-12-03: omsnmp bugfix: "traptype" parameter invalidly rejected value 6
+ "Traptype" needs to support values 0 to 6.
+ However, if value 6(ENTERPRISESPECIFIC) was set, an invalid error message
+ was emitted. Otherwise processing was correct.
+ This could lead to problems with automatic config deployment,
+ as valid configurations were invalidly reported as incorrect.
+ That in turn could make a deployment fail.
+ closes https://github.com/rsyslog/rsyslog/issues/3973
+- 2019-12-03: omsnmp: add new parameter "snmpv1dynsource"
+ If set, the source field from SNMPv1 trap can be overwritten
+ with a template, default is "%fromhost-ip%". The content should be a
+ valid IPv4 Address that can be passed to inet_addr(). If the content
+ is not a valid IPv4 Address, the source will not be set.
+ closes: https://github.com/rsyslog/rsyslog/issues/3991
+- 2019-12-02: imfile bugfix: state file renaming sometimes did not work properly
+ Now checking if file-id changes and renaming - cleaning state file
+ accordingly and always checking and cleaning old inode-only style
+ state files.
+ Thanks to Jiri Vymazal for the patch.
+- 2019-12-02: ratelimit: increase rate limit interval parameter max value
+ The burst parameter in the ratelimit was increased to an unsigned int
+ but the interval remained an unsigned short. While it may be unusual,
+ there is possibly a chance to need to represent an interval longer than
+ about 3/4 of a day.
+ While here, go through and normalize all the various incarnations of
+ rate limiting to be explicitly unsigned int for the burst and interval.
+ Thanks to github user frikilax for the patch.
+- 2019-12-02: ommongodb: Add other supported formats for 'time' and 'date' fields
+ Thanks to github user frikilax for the patch.
+- 2019-12-02: imjournal bugfix: too many messages in error case
+ Under certain error conditions, `ignorePreviousMessages="on"` could be ignored
+ an existing messages be processed.
+ Thanks to github user 3chas3 for the patch.
+- 2019-11-27: core bugfix: action on retry mangles messages
+ When a failed action goes into retry, template content is rendered
+ invalid if the action uses more than 1 template.
+ closes https://github.com/rsyslog/rsyslog/issues/3898
+ Thanks to Mikko Kortelainen for the patch.
+- 2019-11-27: testbench: improve mysql testing support
+ tests can now run in parallel and are hardened against several glitches
+- 2019-11-22: omhttp: add basic support for Loki Rest
+ Loki is a new message indexer and querier from Grafana Labs. See
+ https://github.com/grafana/loki for details on Loki.
+ This change provides the initial message structure to send bulk message
+ payloads to the Loki Rest endpoint. omhttp, received a new bulk message
+ format called lokirest. Additionally, the plugin relies on the user to
+ provide the correct "stream" read message format.
+ A loki template must be json compatible and include a "stream" key of
+ key value tags, and a values key of an array of 2 element arrays, where
+ each 2 element array is the unix epoch in nanoseconds followed by an
+ unstructured message.
+ An example:
+ template(name="array_loki" type="string" string="{\"stream\":{\"host\":\"%HOSTNAME%\",\"facility\":\"%syslogfacility-text%\",\"priority\":\"%syslogpriority-text%\",\"syslogtag\":\"%syslogtag%\"},\"values\": [[ \"%timegenerated:::date-unixtimestamp%000000000\", \"%msg%\" ]]}")
+- 2019-11-22: testbench: obtain python binary path via AM_PATH_PYTHON
+ see also https://github.com/rsyslog/rsyslog/issues/3853
+- 2019-11-22: omprog: detect violation of interface protocol
+ The spec for the omprog interaction with the program it calls specifies
+ that the program receives one message via one line. In other words:
+ it must be a string terminated by LF.
+ However, omprog does currently rely on a proper template to fulfill this
+ requirement, If the template does not provide for the LF, it is never
+ written. For the called program, this looks like it does not receive any
+ input at all. Even if it finally reads data (e.g. due to full buffer),
+ it will not properly be able to discern the messages.
+ This handling is improved with this commit.
+ We cannot just check the template, because at the end of the template
+ may by a non-constant value. As such, we do not know at config load
+ time if there is this problem or not.
+ So the correct approach is to, during runtime, check if each message
+ is properly terminated. For those that are not:
+ * we append a LF, because anything else makes matters worse
+ * log a warning message, at least for a sample of the messages
+ The warning is useful in the (expected most often) case that the template
+ is simply missing the LF. While appending works, it slows down processing.
+ As such the user should be given a chance to correct the config bug.
+ To avoid clutter, the warning is emitted at most once every 30 seconds.
+ This value is hardcoded as we do not envision a need to adjust it. Usually
+ users should quickly fix the template.
+ closes https://github.com/rsyslog/rsyslog/issues/3975
+- 2019-11-19: core queue: emit warning if parameters are set for direct queue
+ Direct queues do not apply queue parameters because they are actually
+ no physical queue. As such, any parameter set is ignored. This can
+ lead to unintentional results.
+ The new code detects this case and warns the user.
+ closes https://github.com/rsyslog/rsyslog/issues/77
+- 2019-11-19: imjournal bugfix: do not wait too long on recovery try
+ When trying to recover journal errors, imjournal waited a hardcoded
+ period of 10s between tries. This was pretty long and could lead to
+ loss of journal data.
+ This commit adjust it to 100ms, which should still be fully sufficient
+ to prevent the journal from "hammering" the CPU.
+ It may be worth considering to make this setting configurable - but
+ let's first see if there is real demand to actually do that.
+ closes https://github.com/rsyslog/rsyslog/issues/3969
+- 2019-11-19: mmutf8fix: enhance handling of incorrect UTF-8 sequences
+ 1. Invalid utf8 detection didn't handle 3 and 4-byte overlong encodings (2
+ byte overlong encodings were handled explicitly by rejection E0 and E1
+ start bytes). Unified checks for overlong encodings.
+ 2. Surrogates U+D800..U+DFFF are not valid codepoints (Unicode Standard, D92)
+ 3. Replacement of characters in invalid 3 or 4-bytes encodings was too
+ eager. It must not replace bytes which are valid UTF-8 sequences. For
+ example, in [0xE0 0xC2 0xA7] sequence the 0xC2 is invalid as a continuation
+ byte, but it starts a valid UTF8 symbol [0xC2 0xA7]. That is, with current
+ code processing the sequence will result in "???" but the correct result is "?§"
+ (provided that the replacement character is "?").
+ 4. Various tests for UTF-8 invalid/valid sequences.
+ Thanks to Sergei Turchanov for the patch.
+- 2019-11-14: imfile: add new input parameter escapeLF.replacement
+ The new parameter permits to specify a replacement to be configured
+ when "escapeLF" is set to "on". Previously, a fixed replacement string
+ was used ("#012"/"\n") depending on circumstances. If the parameter is
+ set to an empty string, the LF is simply discarded.
+ closes https://github.com/rsyslog/rsyslog/issues/3889
+----------------------------------------------------------------------------------------
+Scheduled Release 8.1911.0 (aka 2019.11) 2019-11-12
+- 2019-11-12: core queue: add config param "queue.takeFlowCtlFromMsg"
+ This is a fine-tuning option which permits to control whether or not
+ rsyslog shall alays take the flow control setting from the message. If
+ so, non-primary queues may also block when reaching high water mark.
+ This permits to add some synchronous processing to rsyslog core engine.
+ However, it is dangerous, as improper use may make the core engine
+ stall. As such, enabling this option requires very careful planning
+ of the rsyslog configuration and deep understanding of the consequences.
+ Note that the option is applied to individual queues, so a configuration
+ with a large number of queues can (and must if use) be fine-tuned to
+ the exact use case.
+ The rsyslog team strongly recommends to let the option turned off,
+ which is the default setting.
+ see also https://github.com/rsyslog/rsyslog/issues/3941
+- 2019-11-12: imrelp: add new config parameter "flowcontrol"
+ This permits to fine-tune the flowControl parameter. Possible values are
+ "no", "light", and "full". With light being the default and previously
+ only value.
+ Changing the flow control setting may be useful for some rare applications,
+ but be sure to know exactly what you are doing when changing this setting.
+ Most importantly, whole rsyslog may block and become unresponsive if you
+ change flowcontrol to "full". While this may be a desired effect when
+ intentionally trying to make it most unlikely that rsyslog needs to
+ lose/discard messages, usually this is not what you want.
+ see also https://github.com/rsyslog/rsyslog/issues/3941
+- 2019-11-11: imrelp: remove unsafe debug instrumentation
+ dbgprintf, which is not signal safe, was called from a signal handler
+ to get better understanding during debugging. While this usually works,
+ it can occasionally (5%) lead to a hang during shutdown. We have now
+ removed that debug info as it is no longer vital.
+ Note: this could only happen during debug runs. Production mode was
+ not affected. As such, this fix is only relevant to developers.
+ However, it caused some confusion in the following issue tracker.
+ see also https://github.com/rsyslog/rsyslog/issues/3941
+- 2019-11-06: ossl driver bugfix: fix wrong OpenSSL Version check
+ Fix OpenSSL Version check in:
+ - SetGnutlsPriorityString function in nsd_ossl.c
+ - initTLS() function tcpflood.c
+ See https://www.openssl.org/docs/man1.1.0/man3/OPENSSL_VERSION_NUMBER.html
+ for more.
+ This bug lead to not enabling some functionality correctly.
+ Removed "MinProtocol=TLSv1.1" from two testcases because MinProtocol
+ is only supported by OpenSSl 1.1.0 or higher and was not really
+ necessary for the testcases.
+ closes https://github.com/rsyslog/rsyslog/issues/3939
+- 2019-11-05: mmdarwin: Optimizations, new parameters, update to protocol header
+ - use permanent worker-dependent buffers to avoid malloc/free for each entry
+ - move socket structures to worker data, remove global mutex
+ - add log lines for parameters and general workflow
+ - don't send body if empty/incomplete (see new parameters)
+ - don't close/reopen socket every time -> let session open or create new every X
+ entry (see new parameters)
+ - clean up code
+ - added 'send_partial', to let mmdarwin send body if not all fields were
+ retrieved, or not; default false = only send complete bodies
+ - added 'socket_max_use' to open new session every X packet, useful for
+ some versions of Darwin (prior to 1.1)
+ default is 0 = do not open new session/keep only one
+ - added 'evt_id' to the darwin header (Darwin v1+ compatibility)
+ Note: mmdarwin is a contributed module
+ Thanks to github user frikilax for the patch.
+- 2019-11-01: mmkubernetes bugfix: improper use of realloc()
+ could cause problems under extreme memory shortage - very unlikely
+ credits to LGTM.COM for detecting this
+- 2019-10-31: imjournal: set the journal data threshold to MaxMessageSize
+ When data is read from the journal using sd_journal_get_data it may be
+ truncated to a certain threshold (64K by default).
+ If the rsyslog MaxMessageSize is larger than the threshold, there is a
+ chance rsyslog will receive incomplete messages from the journal.
+ Empirically, this appears to happen reliably when XZ compression is
+ used by journald. Systems where journald uses LZ4 compression do not
+ appear to suffer this issue reliably--if at all.
+ This change sets the threshold to the MaxMessageSize when the
+ journal is opened.
+ Thanks to Robert Winslow Dalpe for the patch.
+- 2019-10-30: improg bugfix: allow improg to handle multi-line inputs
+ miscellaneous bug fixes in improg:
+ * properly truncate string after an input event is submitted
+ * set msgoffset to 0.
+ * tests added to check above fixes
+ Thanks to Nelson Yen for the fix.
+- 2019-10-30: mmdblookup bugfix: missing space in city name
+ This fixes the issue that spaces in city names are dropped. However, the
+ fix is more or less a work-around. As it turns out, the libmaxminddb API
+ is not correctly used. In the somewhat longer term, we should fix this.
+ see also https://github.com/maxmind/libmaxminddb/issues/218
+ closes https://github.com/rsyslog/rsyslog/issues/1650
+- 2019-10-30: core/queue: provide ability to run diskqueue on multiple threads
+ Up until this release, disk queues could only use a single thread,
+ what limited their performance with outputs like ElasticSearch.
+ Now disk queues can utilize multiple threads just like any other
+ queue type. Most importantly, the disk queue part of a DA queue
+ now inherits the max number of threads from its memory queue
+ counterpart.
+ NOTE: the new multi-threaded DA disk queue is actually a change of
+ behavior. We have not guarded it by a new config switch as we
+ assume the new behavior is most often exactly within user
+ expectations. In any case, we cannot see any harm from running
+ the disk queue on multiple threads.
+ see also https://github.com/rsyslog/rsyslog/issues/3543
+ closes https://github.com/rsyslog/rsyslog/issues/3833
+- 2019-10-25: omfile bugfix: file handle leak
+ The stream class does not close re-opened file descriptors.
+ This lead to leaking file handles and ultimately to the inability
+ to open any files/sockets/etc as rsyslog ran out of handles.
+ The bug was depending on timing. This involved different OS
+ thread scheduler timing as well as workload. The bug was more
+ common under the following conditions:
+ - async writing of files
+ - dynafiles
+ - not committing file data at end of transaction
+ However it could be triggered under other conditions as well.
+ The refactoring done in 8.1908 increased the likelihood of
+ experiencing this bug. But it was not a real regression, the new
+ code was valid, but changed the timing so that the race was more
+ likely.
+ Thanks to Michael Biebl for reporting this bug and helping to
+ analyze it.
+ closes https://github.com/rsyslog/rsyslog/issues/3885
+- 2019-10-22: imfile bugfix: improper use of calloc()
+ could cause problems under extreme memory shortage - very unlikely
+ credits to LGTM.COM for detecting this
+- 2019-10-22: TLS driver bugfix: improper use of calloc()
+ can cause problems under extreme memory shortage - very unlikely
+ credits to LGTM.COM for detecting this
+- 2019-10-22: imuxsock bugfix: improper use of calloc()
+ can cause problems under extreme memory shortage - very unlikely
+ credits to LGTM.COM for detecting this
+- 2019-10-17: build system bugfix: incorrect default in ./configure help text
+ closes https://github.com/rsyslog/rsyslog/issues/3904
+ Thanks to Michael Biebl for pointing this out.
+- 2019-10-17: mmkubernetes bugfix: improper use of calloc()
+ can cause problems under extreme memory shortage - very unlikely
+ credits to LGTM.COM for detecting this
+- 2019-10-16: core queue bugfix: propagate batch size to DA queue
+ This was a long-standing bug where the DA queue always had a fixed small batch
+ size because the setting was not propagated from the memory queue. This also
+ removes a needless and counter-productive "debug aid" which seemed to be in
+ the code for quite some while. It did not cause harm because of the batch
+ size issue.
+- 2019-10-16: testbench: fix unreliable gzipwrite test
+ The test was timing-sensitive as we did not properly check all data
+ was output to the output file - we just relied on sleep periods.
+ This has been changed. Also, we made some changes to the testing
+ framework to fully support sequence checking of multiple ZIP files.
+- 2019-10-16: core queue bugfix: handle multi-queue-file delete correctly
+ Rsyslog may leave some dangling disk queue files under the following
+ conditions:
+ - batch sizes and/or messages are large
+ - queue files are comparatively small
+ - a batch spans more than two queue files (from n to n+m with m>1)
+ In this case, queue files n+1 to (n+m-1) are not deleted. This can
+ lead to problems when the queue is re-opened again. In extreme cases
+ this can also lead to stalled processing when the max disk space is
+ used up by such left-over queue files.
+ Using defaults this scenario is very unlikely, but it can happen,
+ especially when large messages are being processed.
+- 2019-10-16: imjournal: fix regression from yesterday's patch
+ commit 78976a9bc059 introduced a regression that caused writing
+ the journal state file to fail. This happens when the state file
+ is given as relative file name and the working directory is also
+ a relative path. This situation is very uncommon. So most deployments
+ will never experience it. We discovered the issue during CI runs
+ where the trigger condition is given. Note that it also takes
+ multiple times of loading the journal to actually see the bug.
+ see also https://github.com/rsyslog/rsyslog/pull/3878
+- 2019-10-15: imjournal plugin code restructuring, added remote option
+ Decomposed ReadJournal() a bit, also now coupling journald
+ variables in one struct, added few warning messages and debug
+ prints to help with bug hunts in future, also got rid of two
+ needless journald calls. WorkAroundJournalBug now deprecated.
+ Added option to pull journald records from outside local machine.
+ Thanks to Jiri Vymazal for the patch.
+- 2019-10-11: core bugfix: potential abort on very long action name
+ The action name is stored in modified form for the debug header and
+ some messages. If it is extremely long, a buffer can be overrun,
+ resulting in misaddressing and potential segfault for rsyslog. This
+ can also happen if the action is NOT named, but a custom path to
+ the output module is given and that path is very long. This triggers
+ the same issue because by default the module load path is included
+ in the action name.
+ This patch corrects the problem and truncates overly long names
+ when being used for name generation.
+ The problem was detected during testbench work. We did never receive
+ a bug report from practice.
+- 2019-10-10: testbench: add test for mmpstrucdata with RFC5424 escape sequences
+----------------------------------------------------------------------------------------
+Scheduled Release 8.1910.0 (aka 2019.10) 2019-10-01
+- 2019-10-01: core bugfix: incorrect error message on duplicate module load
+ A Null-pointer was passed to printf instead of the module name.
+ On some platforms this may lead to a segfault. On most platforms
+ printf check's for NULL pointers and uses the string "(null)"
+ instead. In any case, the module name is missing from the error message.
+- 2019-10-01: imczmq nitfix: potential NULL ptr in printf on out-of-memory condition
+ very unlikely to happen but if it does without any real issue on most platforms.
+- 2019-10-01: work around some compiler warning messages induced by pthreads API
+- 2019-10-01: core ratelimiting: more verbose message when rate-limiting happens
+ When messages are rate-limited, the error message now also contains the
+ rate limiter setting. This enables the user to more quickly understand what
+ the problem is (especially if default values apply).
+ Thanks to Jiri Vymazal for the patch.
+- 2019-10-01: openssl TLS driver: do not emit unnecessary error message
+ On older openssl versions, an API was missing to set user-defined parameters. If we
+ had such an older version, rsyslog emitted an error message even if the user did
+ not configure such parameters. This has been corrected, so that a message is only
+ emitted if there really is a problem. Based on user feedback the severity has also
+ been downgraded to "warning".
+- 2019-10-01: pmcisconames (contributed module) bugfix: potential misaddressing
+- 2019-09-30: pmaixforwardedfrom (contributed module) bugfix: potential misaddressing
+- 2019-09-30: pmdb2diag (contributed module) bugfix: Out of bounds issue
+ Add a new sanity check after determining the level len.
+ Thanks to Philippe Duveau for the patch.
+ see also: https://nvd.nist.gov/vuln/detail/CVE-2019-17040
+- 2019-09-02: ability to set stricter TLS operation modes
+ - checking of extendedKeyUsage certificate field
+ - stricter checking of certificate name/addresses
+ Thanks to Jiri Vymazal for the patch.
+- 2019-08-21: testbench: add basic test for immark
+- 2019-08-20: core: do not unnecessarily set hostname on each HUP
+- 2019-08-20: build system: support cross-platform build for mysql/mariadb
+ rsyslog fails to cross build from source, because it uses mysql_config
+ and mysql_config is unfixably broken for cross compilation. It would be
+ better to use pkg-config. The attached patch makes rsyslog try
+ pkg-config first and fall back to mysql_config.
+ Thanks to Helmut Grohne for providing a base patch.
+- 2019-08-20: core/tcpsrv: potential race on startup/shutdown
+ if the tcpsrv component is started and quickly terminated, it may hang
+ for a short period of time. Also a very small amount of memory is leaked
+ immediately before shutdown. While this leak is irrelevant in practice
+ (the OS clean up the process anyways), it leads to CI failures. The hang,
+ however, can lead to longer than expected shutdown times for rsyslog.
+ The problem can be experienced via imtcp, imgssapi and imdiag (users
+ of affected core component).
+----------------------------------------------------------------------------------------
+Scheduled Release 8.1908.0 (aka 2019.08) 2019-08-20
+- 2019-08-19: testbench: add test for $allowedSender functionality
+- 2019-08-19: testbench: harden some tests against very slow CI machines
+- 2019-08-16: testbench: make most tests use a port file and assign listen port 0
+ This makes the test much more robust against heavily loaded test systems.
+- 2019-08-16: core/action: guard action.externalstate.file content against whitespace
+ remove trailing whitespace before checking the status string. This is
+ most important as a line usually ends with \n, which is considered
+ trailing whitespace. Accepting this increases usability.
+- 2019-08-16: imtcp bugfix: multiple listenerPortFile parameter did not work
+ ... because they were treated as module-global. If we had multiple imtcp
+ listeners with multiple port files, only the last filename was always used.
+ closes https://github.com/rsyslog/rsyslog/issues/3817
+- 2019-08-16: testbench: improve testbench plumbing for gzip and fail cases
+ We have added new capabilities to the testbench plumbing to automatically
+ deal with gzip-compressed files. This also permits to use the wait_seq_check
+ function to work for gzip tests as well. The known-timing-sensitive
+ gzipwr_large test now makes use of the new capabilities. This enables us
+ to more reliably detect when we can savely shutdown the tested instance.
+ This commit also adds an ability to "abort" the full testbench run on
+ first test failure. This is especially useful during CI.
+- 2019-08-13: testbench: add test for imuxsock legacy format
+ This was never tested. Ensures we don't accidentally break existing
+ configurations.
+- 2019-08-13: omelasticsearch bugfix: segfault on unknown retryRuleset
+ omelasticsearch does some "interesting tricks" for an output module.
+ This causes a segfault if the retryRuleset is now known.
+ The action module interface currently expects that all config errors
+ be detected during instance creation. Instead omelasticsearch defers
+ the retry ruleset check to a later state. The reason is that it wants
+ to support the use the same rulesetname it is defined in - and this
+ is not yet available at action parsing.
+ We fix this by ensuring that any deleted instance is properly unlinked
+ from the instance list. One may argue the module interface should get
+ upgrade for such cases, but this is a longer-term approach.
+ closes https://github.com/rsyslog/rsyslog/pull/3796
+- 2019-08-12: imptcp bugfix: port="0" parameter did not work as expected
+ when multiple interfaces and/or protocols could be bound, each of
+ them used a different listener ports were assigned. While this is
+ basically correct, it makes things unusable, especially as
+ listenPortFileName will only contain the port number used for
+ the latest listener.
+ This patch now follows the model of nsd_ptcp.c to assign only
+ the first port randomly and then use that port consistently.
+- 2019-08-10: omelasticsearch bugfix: potential resource leak with "rebindinterval"
+ If the "rebindInterval" parameter was used connections could be linked. This
+ was especially the case with small intervals (such as "2"). This is fixed by
+ forcing libcurl to close the connection on rebind.
+ Thanks to Noriko Hosoi for providing the patch.
+- 2019-08-10: imjournal bugfix: state file close with fsync() was incorrect
+ This lead to fsync() now always applied where expected.
+ Thanks to Jiri Vymazal for the patch.
+- 2019-08-10: testbench: add addtl test for multithreading and HUP
+- 2019-08-10: imptcp bugfix: received bytes counter improperly maintained
+ imptcp counts the number of bytes received. However, receives
+ happen on different worker thread. The access to the counter
+ was not synchronized, which can cause loss of updates. Also,
+ thread debuggers validly flag this as an error, which creates
+ problems under CI.
+ This commit fixes the situation via atomic operations and
+ falls back to mutex calls if they are not available.
+ Detected by LLVM thread sanitizer.
+ closes https://github.com/rsyslog/rsyslog/issues/3798
+- 2019-08-07: testbench: add basic tests for omusrmsg
+- 2019-08-05: omhttp bugfix: enable checkpath configuration parameter
+ omhttp, 'checkpath' option, was not configurable in the past.
+ - add 'checkpath' to the cnfparamdescr table.
+ - fix issue with checkpath passing extra garbage characters in string.
+ - add 'checkpath' into unit test - omhttp-retry.sh
+ Thanks to Nelson Yen for the fix.
+- 2019-08-05: testbench bugfix: some tests were executed when req module was missing
+ In actual case if --enable-impstats was not given some other tests failed.
+- 2019-08-03: iminternal bugfix: race on termination
+ This could in theory lead to loss of shutdown messages, but was mostly a
+ cosmetic issues. We primarily fixed it to get TSAN-clean so that we can
+ utilize LLVM TSAN in CI.
+- 2019-08-02: testbench: new test for omfile outchannel functionality
+- 2019-08-02: core/janitor bugfix: properly maintain dynafile cache
+ When the janitor cleans out timed-out files, it does not
+ properly indicate the entry is gone. Especially when running
+ in async mode this can lead to use-after-free and thus
+ memory corruption or segfault.
+ see also https://github.com/rsyslog/rsyslog/issues/3756
+- 2019-08-01: omfile bugfix: race file when async writing is enabled
+ This seems to be a long-standing bug, introduced around 7 years ago.
+ It became more visible by properly closing files during HUP, which
+ was done in 8.1905.0 (and was another bugfix). Note that due to this
+ race a memory corruption can occur under bad circumstances. As such,
+ this may have also caused segfaults or system hangs (mutexes could
+ have been affected).
+ closes https://github.com/rsyslog/rsyslog/issues/3772
+- 2019-08-01: testbench: additional tests for HUP
+- 2019-07-31: imrelp bugfix: hang after HUP
+ termination condition was not properly checked; this lead to
+ premature termination after patch 1c8712415b9 was applied.
+ It is open to debate if patch 1c8712415b9 changed the module
+ interface. Actually it looks like this was previously not
+ well thought out.
+ closes https://github.com/rsyslog/rsyslog/issues/3760
+- 2019-07-24: mmdarwin: add new module
+ This is a contributed module. For details see doc.
+ Thanks to the Advens team for contributing it.
+- 2019-07-23 iminternal bugfix: suppress mutex double-unlock
+ If there is a burst of log messages during a time when rsyslog is unable
+ to output (either during log rotation, an out-of-space condition, or
+ some other similar condition), rsyslog can SEGFAULT due to a mutex
+ double-unlock.
+- 2019-07-23 imtcp: enable listenPortFileName parameter
+ this parameter was added, but it had no effect as it was not
+ passed down to the driver layer. This has been fixed. That also
+ now enables us to use dynamically-assigned port, which are
+ very useful for further testbench stabilization. Quite some
+ false positives occurred because the pre-selected port was
+ already in use again when rsyslog started.
+- 2019-07-19 imtcp: enable listenPortFileName parameter
+ this parameter was added, but it had no effect as it was not
+ passed down to the driver layer. This has been fixed. That also
+ now enables us to use dynamically-assigned port, which are
+ very useful for further testbench stabilization. Quite some
+ false positives occurred because the pre-selected port was
+ already in use again when rsyslog started.
+- 2019-07-18 core/action: no error file written if act suspended on TX commit
+ when an action was already disabled while the action was tried to be
+ committed, no error file was written. Note that this state is highly
+ unlikely to happen. Most probably, it can only happen if parameter
+ action.externalstate.file is used.
+----------------------------------------------------------------------------------------
+Version 8.1907.0 (aka 2019.07) 2019-07-09
+NOTE TO MAINTAINERS: libee is not used by rsyslog for quite some while.
+However, we never included this info into the changelog. So if you still
+make rsyslog depend on libee (some do this), you should stop doing so now.
+Libee is dead and no longer been maintained nor hosted by us. Old versions
+can still be found at github for those in need.
+
+GENERAL NOTE: during 8.1907 scheduled release timeframe we changed the ChangeLog
+format to include the date a change went into master branch. This is to provide
+an easy way to identify which changes went into the respective daily stable.
+
+- 2019-07-05 imuxsock: support FreeBSD 12 out of the box
+ FreeBSD 12 uses RFC5424 on the system log socket by default. This
+ format is not supported by the special parser used in imuxsock.
+ Thus for FreeBSD the default needs to be changed to use the
+ regular parser chain by default. That is all this commit does.
+ closes https://github.com/rsyslog/rsyslog/issues/3694
+- 2019-07-05 function bugfix: "ipv42num" misspelled as "ip42mum" (without "v")
+ To fix the issue but keep compatible with existing deployments
+ both function names are now supported.
+ closes https://github.com/rsyslog/rsyslog/issues/3676
+- 2019-07-04 fix leading double space in rsyslog startup messages
+ see also https://github.com/rsyslog/rsyslog/issues/2979
+- omamqp1: port to latest api, add tests
+ This brings omamqp1 up-to-date with the latest qpid-proton-c
+ api version. This also adds a test for the plugin, to test
+ the basic functionality. The test requires the user to
+ install qdrouterd and the python qpid-proton library in order
+ to use the simple_recv.py test program.
+ Thanks to Richard Megginson for the patch.
+- omclickhouse bugfix: potential segfault on omclickhouse batchmode
+ segfault happened when the template did not contain the string
+ "VALUES".
+ Thanks to github user wdjwxh for the fix.
+- core bugfix: message duplication copied incorrect timestamp
+ MsgDup() placed timereported into timegenerated property, resulting
+ in invalid property values. Original timegenerated was lost. This
+ occurred always when a message needed to be duplicated. Most
+ importantly this is the case when queues are used.
+ closes https://github.com/rsyslog/rsyslog/issues/3716
+- core bugfix: segfault on startup depending on queue file names
+ rsyslog will segfault on startup when a main queue file name has
+ been set and at least on other queue contains a file name. This
+ was cased by too-early freeing config error-detection data
+ structures. It is a regression caused by commit e22fb205a3.
+ Thanks to Wade Simmons for reporting this issue and providing
+ detailed analysis. That greatly helps fixing it quickly.
+ closes https://github.com/rsyslog/rsyslog/issues/3681
+- core "bugfix": alignment issue
+ This was not a hard error on current platforms, but a
+ to-be-considered compiler warning regarding invalid alignment.
+ While it works well on current platforms, alignment issues may
+ turn into real issues in future platforms. So we try to fix them
+ if possible. As not only a side-effect this resolves compiler
+ warnings even on current platforms.
+ This fix has some regression potential. If so, the problems
+ may occur during IP address resolution.
+ see also https://github.com/rsyslog/rsyslog/issues/2608
+- omfile bugfix: potential hang/segfault on HUP of dynafile action
+ when omfile was HUPed it did not sufficiently clear all dynafile
+ cache maintenance data structures. This usually lead to misaddressing
+ and could result in various issues, including a hang of rsyslog
+ processing or segfaults. It could also have "no effect" by pure
+ luck of not hitting anything important. This actually seems to
+ have been the most frequent case.
+ This seems to be a long-standing bug, but the likelihood of its
+ appearance seems to have been increased by commit 62fbef7
+ introduced in 8.1905. Note: the commit itself has no regression,
+ just increases the likelihood to trigger the pre-existing bug.
+ special thanks to Alexandre Guédon for his help in analyzing
+ the issue - without him, we would probably still not know
+ what actually went wrong.
+ closes https://github.com/rsyslog/rsyslog/issues/3686
+- imjournal bugfix: potential message duplication
+ When journal was preloaded from previously saved cursor it was not advanced
+ to next entry so reading begun from last message which was therefore
+ duplicated.
+ Thanks to Jiri Vymazal for the patch.
+- rfc5424 parser bugfix: leading space sometimes lost
+ if structured data is present a leading space in MSG field is lost
+- queue subsystem bugfix: oversize queue warning message shown as error
+ The warning message was emitted as an error message, which is misleading
+ and may also break some automated procedures.
+- core bugfix: HUP did not work reliable on all platforms
+ most notably not on FreeBSD, maybe others. The reason was obviously
+ different handling of signals in respect to multiple threads.
+- build system bugfix: missing files in distribution tarball
+- testbench
+ * fixed "make distcheck" settings which were missing some modules
+ This lead to incomplete "make distcheck" run; some errors were not
+ detected due to that.
+ * testbench framework: use ip tool instead of outdated ifconfig
+ The framework now first checks if "ip" is available and falls back
+ to "ifconfig" only if this is not the case.
+ Thanks to Michael Biebl for the suggestion.
+ closes https://github.com/rsyslog/rsyslog/issues/3682
+------------------------------------------------------------------------------
+Version 8.1905.0 (aka 2019.05) 2019-05-28
+- templates: add datatype template option for JSON generation
+ The new "datatype" and "onEmpty" template options permits to
+ generate non-string data rather easily. It works together with
+ jsonf formatting, which is what people should use nowadays.
+ closes https://github.com/rsyslog/rsyslog/issues/2827
+- config processing: check disk queue file is unique
+ If the same name is specified for multiple queues, the queue files
+ will become corrupted. This commit adds a check during config parsing.
+ If duplicate names are detected the config parser errors out and the
+ related object is not created.
+ Note: this may look to a change-of-behavior to some users. However,
+ this never worked and it was pure luck that these users did not run
+ into big problems (e.g. DA queues were never going to disk at the
+ same time). So it is acceptable to error out in this hard error case.
+ closes https://github.com/rsyslog/rsyslog/issues/1385
+- global config: new parameters for ruleset queue defaults
+ specifically:
+ * default.ruleset.queue.timeoutshutdown
+ * default.ruleset.queue.timeoutactioncompletion
+ * default.ruleset.queue.timeoutenqueue
+ * default.ruleset.queue.timeoutworkerthreadshutdown
+ closes https://github.com/rsyslog/rsyslog/issues/3656
+- add capability to write full config file (-o cmdline option)
+ Introduces the capability to create an output config file that explodes
+ all "includes" into a single file. This provides a much better overview
+ of how exactly the configuration is crafted. That could often be a great
+ troubleshooting aid.
+ This commit also contains some slight not-really-related cleanup.
+ closes https://github.com/rsyslog/rsyslog/issues/3634
+- queue subsystem: permit to disable "light delay mark"
+ New semantic: if lightDelayMark is 0, it is set to the max queue
+ size, effectively disabling the "light delay" functionality.
+ Thanks to Yury Bushmelev to mentioning issues related to light
+ delay mark and proposing the solution (which actually is what
+ this commit does).
+ closes https://github.com/rsyslog/rsyslog/issues/1778
+- queue subsystem: provide better user status messages
+ The queue subsystem now provides additional information messages which
+ may help a regular user to maintain system health. Most importantly,
+ DA queues now output when they persist queue data at end of run and
+ when they restart the queue based on persisted data.
+- core: emit a warning message for ultra-large queue size definitions
+ We see error reports from users who have configured excessively large queues
+ and receive an OOM condition or other problems.
+ With that patch we generate a warning message if a queue is configured very
+ large. "Very large" is defined to be in excess of 500000 messages.
+ see also https://github.com/rsyslog/rsyslog/issues/3314
+ closes https://github.com/rsyslog/rsyslog/issues/3334
+- new global config parameter "internalmsg.severity"
+ permits to specify a severity filter for internal message. Only
+ messages with this severity level or more severe are logged.
+ Originally this was done in rsyslog.conf as usual: you can filter
+ rsyslog messages on severity, just like any other. But with systemd,
+ we now emit primarily to the journal, and this is outside of rsyslog's
+ rule engine and so regular filters do not apply (at least in regard
+ to the journal). Logging to journal is good, because finally
+ folks begin to see the messages (traditional distro configs discard
+ them, for whatever is the reason).
+ This commit implements a global setting for a severity-based filter
+ for internal messages, before submitted to journal. So it's not 100%
+ of what rsyslog can do, but at least some way to customize.
+ see also https://github.com/rsyslog/rsyslog/issues/3639
+- config processing bugfix: error messages if config.enabled="off" is used
+ Using config.enabled="off" could lead to error messages on
+ "parameter xxx not known", which were invalid. They occurred
+ because the config handler expected them to be used, which
+ was not the case due to being disabled.
+ This commit fixes that issue.
+ closes https://github.com/rsyslog/rsyslog/issues/2520
+- core portability bugfix: harden shutdown processing on FreeBSD
+ On FreeBSD, rsyslog does not always terminate immediately on SIGTERM.
+ Root cause seems to be that SIGTERM is delivered differently under
+ FreeBSD. This causes the main thread to not be awaken, and so it
+ takes until the next janitor interval to come back to life - which
+ can be far too long. Fixed this bug explicitly awaking the main
+ thread.
+- imtcp bugfix: oversize message truncation causes log to be garbled
+ The actual problem is in the tcpserver component. However, the prime user
+ is imtcp and so users will likely experience this as imtcp problem.
+ When a too-long message is truncated, the byte after the truncation
+ position becomes the first byte of the next message. This will garble
+ the next messages and in almost all cases render it is syslog-noncompliant.
+ The same problem does NOT occur when the message is split.
+ This commit fixes the issue. It also includes a testbench fix.
+ Unfortunately the test for exactly this feature was not properly
+ crafted and so could not detect the problem.
+ closes https://github.com/rsyslog/rsyslog/issues/3580
+- omfile bugfix: FlushOnTXEnd does not work reliably with dynafiles
+ The flush was only done to the last dynafile in use at end of
+ transactions. Dynafiles that were also modified during the
+ transaction were not flushed.
+ Special thanks to Duy Nguyen for pointing us to the bug and
+ suggesting a solution.
+ This commit also contains a bit of cosmetic cleanup inside
+ the file stream class.
+ closes https://github.com/rsyslog/rsyslog/issues/2502
+- lmcry_gcry build bugfix: was not always properly build
+ Due to an invalid definition in build system this seems to have not
+ been correctly build on at least some platforms (but it worked on
+ others as it passed CI testing). This has now been corrected.
+ Thanks to Remi Locherer for the patch.
+- dnscache bugfix: very unlikely memory leak
+ This fixes a memory leak that can only occur under OOM conditions.
+ Detected by Coverity Scan, CID 203717
+- testbench bugfix: wrong parameter check in diag.sh (tcpflood())
+ When first parameter is check_only, the tcpflood funtion shall not
+ abort the test itself (The fail is intended if this option is set).
+ closes issue #3625
+- testbench bugfix: imfile-symlink test failed w/ parallel test run
+ The test sometimes failed. It used a symlink to a hardcoded name
+ rsyslog-link.*.log. This symlink was created but then disappears.
+ The reason is that upon (every!) test exit, rsyslog-link.*.log is
+ deleted. So a parallel test running the exit procedure just at the
+ "right" time can removed that file.
+ The bug is that the file name should be created using the tests's
+ dynamic name. This is done now.
+ closes https://github.com/rsyslog/rsyslog/issues/3550
+------------------------------------------------------------------------------
+Version 8.1904.0 (aka 2019.04) 2019-04-16
+- omfile: provide more helpful error message on file write errors
+ now contains actual file name plus a link to probable causes for this type
+ of problem
+- imfile: emit error on startup if no working directory is set
+ When the work directory has not been set or is invalid, state files
+ are created in the root of the file system. This is neither expected
+ nor desirable. We now complain loudly about this fact. For backwards
+ compatibility reasons, we still need to support running imfile in
+ this case.
+ closes https://github.com/rsyslog/rsyslog/issues/1296
+- dnscache: add global parameter dnscache.default.ttl
+ This permits to control default TTL for cache entries. If set
+ to 0, the DNS cache is effectively disabled.
+ closes https://github.com/rsyslog/rsyslog/issues/49
+ closes https://github.com/rsyslog/rsyslog/issues/1487
+- omelasticsearch: new parameter rebindinterval
+ Thanks to Richard Megginson for the patch.
+- omelasticsearch: new parameter skipverifyhost
+ Add ability to specify the libcurl CURLOPT_SSL_VERIFYHOST
+ option to skip verification of the hostname in the peer cert.
+ WARNING: This option is insecure, and should only be used
+ for testing. The default value is off, meaning, the hostname
+ will be verified by default.
+ Thanks to Richard Megginson for the patch.
+- omelasticsearch: set rawmsg to data from original request
+ Previously, when constructing the message to submit for a retry
+ for an original request, if the original request did not contain
+ the field `message`, the system property `rawmsg` was set to
+ the entire metadata + data from the original request. This was
+ causing problems with Elasticsearch. This patch changes
+ the code so that the `rawmsg` will be set to only the data part
+ of the original request if there is no `message` field.
+ closes https://github.com/rsyslog/rsyslog/issues/3573
+ Thanks to Richard Megginson for the patch.
+- mmkubernetes - support for metadata cache expiration
+ New parameters for mmkubernetes (module and action):
+ * `cacheexpireinterval`
+ If `cacheexpireinterval` is -1, then do not check for cache expiration.
+ If `cacheexpireinterval` is 0, then check for cache expiration.
+ If `cacheexpireinterval` is greater than 0, check for cache expiration
+ if the last time we checked was more than this many seconds ago.
+ * `cacheentryttl` - maximum age in seconds for cache entries
+ New statistics counters:
+ * `podcachenumentries` - the number of entries in the pod metadata cache.
+ * `namespacecachenumentries` - the number of entries in the namespace
+ metadata cache.
+ * `podcachehits` - the number of times a requested entry was found in the
+ pod metadata cache.
+ * `namespacecachehits` - the number of times a requested entry was found
+ in the namespace metadata cache.
+ * `podcachemisses` - the number of times a requested entry was not found
+ in the pod metadata cache, and had to be requested from Kubernetes.
+ * `namespacecachemisses` - the number of times a requested entry was not
+ found in the namespace metadata cache, and had to be requested from
+ Kubernetes.
+- imdocker: new contributed module
+ imdocker will get (docker) container logs from a host as well as filling
+ out some basic container metadata as id, name, image, labels.
+ Thanks to Nelson Yen for the contribution.
+- mmtaghostname: new contributed module
+ This module allows one to force hostname after parsing to the localhostname of
+ rsyslog and/or add a tag to messages received from input modules without
+ tag parameter.
+ Thanks to Philippe Duveau for the contribution.
+- imbatchreport: new contributed input module
+ This input module manage batches' reports : complete file as a single log.
+ Thanks to Philippe Duveau for the contribution.
+- imtuxedolog: new contributed input module for Tuxedo ULOG
+ Thanks to Philippe Duveau for the contribution.
+- openssl network driver: Added support setting openssl configcommands
+ We are using the gnutlsPriorityString setting variable, to pass
+ configuration commands to openssl.
+ closes: https://github.com/rsyslog/rsyslog/issues/3605
+- omkafka: drop messages rejected due to being too large
+ Drop messages that were rejected due to
+ 'RD_KAFKA_RESP_ERR_MSG_SIZE_TOO_LARGE' error
+ Thanks to Nelson Yen for the patch
+- core/action: implement capability to resume/suspend via external file
+ It has been reported that some TCP receivers exists that accept syslog tcp
+ messages at any rate, even if they do not manage to actually process them.
+ Instead, they silently drop the message. This behavior is not configurable.
+ All in all, it can lead to considerate message loss.
+ To support such use cases, we need to provide an ability to externally
+ trigger actions suspension and resumption.
+ We do this via a configured file which contains the status of the action.
+ Rsyslog periodically reads the file and if it contains "SUSPEND", it
+ suspend the action (and likewise for resume).
+ closes https://github.com/rsyslog/rsyslog/issues/2924
+- improg bugfix: some memory leaks
+ Thanks to Philippe Duveau for the contribution.
+- msg object bugfix: regression from 1255a67
+ closes https://github.com/rsyslog/rsyslog/issues/3570
+- pmnormalize: fix memory leaks, improve tests
+ This patch fixes a set of problems plus provides more and enhanced
+ tests for the module.
+ Most important problem was a memory leak that occurred when a message
+ could not be passed at all. For each message that could not be parsed
+ memory of at least the size the message is leaked. Depending on
+ traffic pattern this can quickly lead to OOM. Note, however, that
+ this leak was never reported - it was discovered as part of code
+ review.
+ closes https://github.com/rsyslog/rsyslog/issues/2007
+- omkafka bugfix: build failure due to inconsistent type
+ fails depending on platform and settings; was somehow undetected by CI
+- imjournal bugfix: potential segfault on some API failure returns
+ In one case there was possibility of free()'d value of journal
+ cursor not being reset, causing double-free and crash later on.
+ closes https://github.com/rsyslog/rsyslog/issues/3537
+- openssl subsystem bugfix: better error handling
+ Handling of SSL_ERROR_SYSCALL has been hardened.
+ Handling for SSL_Shutdown errors has been corrected.
+ Also fixed SSL Shutdown handling in tcpflood (openssl code).
+ If SSL_Shutdown returns error, we call SSL_read as described in
+ the documentation to do a bidirectional shutdown.
+ Closes https://github.com/rsyslog/rsyslog/issues/3561
+- imjournal bugfix: Fetching journal cursor only for valid journal
+ The sd_journal_get_cursor() got called regardless of previous
+ retcodes from other journal calls which flooded logs with journald
+ errors. Now skipping the call in case of previous journal call
+ non-zero result. Fixed success checking of get_cursor() call
+ to eliminate double-free possibility.
+ Also, making WorkAroundJournalBug true by default, as there were no
+ confirmed performance regressions for a quite long time.
+ Thanks to Jiri Vymazal for the patch.
+- omamqp: fix build errors
+ They occur on some, newer, platforms. We do not really fix them, but rather
+ make the compiler ignore them. This is not really good, but the module is
+ contributed and so that's for now the best thing we can do.
+- testbench: change manytcp.sh to use a larger connection count again
+ not sure why it was reduced, maybe related to
+ https://github.com/rsyslog/rsyslog/issues/1108
+ also, modernize this and another test
+- tcpflood bugfix: make soft connection limit work again
+ It looks like the soft limit became defunct when tcpflood was enhanced to
+ request more open file handles from OS.
+ closes https://github.com/rsyslog/rsyslog/issues/1108
+- testbench bugfix: omhttp tests were not run during "make distcheck"
+- build system bugfix: omhttp test files were not included in dist tarball
+ Thanks to Thomas D. (whissi) for the patch.
+------------------------------------------------------------------------------
+Version 8.1903.0 (aka 2019.03) 2019-03-05
+- omrabbitmq: add features (RabbitMQ HA management, templatize routing_key,
+ populate amqp message headers, delivery_mode and expiration parameters)
+- improg: create input module to use external program as input datas
+- imtuxedoulog: create input module to consume Tuxedo ULOG files
+- omhttp: rewritten with large feature enhancements
+ Many thanks to Gabriel Intrator for this work. Gabriel also has adopted the
+ module and plans to support it in the future.
+- pmdb2diag: create parser module for DB2 diag logs
+- TLS subsystem: add support for certless communication
+ both openssl and GnuTLS drivers have been updated to support certless
+ communications. In this case e.g. Diffie-Helman is used.
+ NOTE: this is an insecure mode, as it does NOT guard against
+ man-in-the-middle attacks. We implemented it because of the large demand,
+ not because we think it makes sense to use this mode. We strongly recommend
+ against it.
+ closes https://github.com/rsyslog/rsyslog/issues/1068
+- imrelp/omrelp: add capability to specify tlslib for librelp
+ closes https://github.com/rsyslog/rsyslog/issues/3451
+- build system: introduce a better way to handle compiler pragmas
+ we now use macros and _Pragma(). This requires less code lines and is more
+ portable.
+- omkafka: add support for dynamic keys
+ A new configuration property "dynaKey" is added that, when "on", changes the
+ value of property "key" to a template names instead of a constant value.
+ This is similar in approach to the DynaTopic implementation.
+ Thanks to Ludo Brands for the patch.
+- AIX port: add AIX linking extensions on many plugins and contributions to
+ allow building them on this os.
+- template: add Time-Related System Property $wday which is the day of week
+ This allows one to get a week based rotation of log as AIX does.
+- ksi subsystem: add high availability mode
+ Note: ksi subsystem now REQUIRES libksi 3.19.0 or above
+ Thanks to Allan Park for the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/3338
+- imfile bugfix: file reader could get stuck
+ State file handling was invalid. When a file was moved and re-created
+ rsyslog could use the file_id if the new file to write the old files'
+ state file. This could make the file reader stuck until it reached the
+ previous offset. Depending on file sizes this could never happen AND
+ would cause large message loss. This situation was timing dependent
+ (a race) and most frequently occurred under log rotation. In polling
+ mode the bug was less likely, but could also occur.
+ closes: https://github.com/rsyslog/rsyslog/issues/3465
+ closes: https://github.com/rsyslog/rsyslog/issues/3468
+- imfile bugfix: potential segfault when working with directories or symlinks
+ see also https://github.com/rsyslog/rsyslog/pull/3496
+ Thanks to Nelson Yen for the patch
+- omhttp bugfix: header items could not have spaces in them
+ Thanks to Nathan Brown for the patch.
+- core bugfix: enlarged msg offset types for bigger structured messages
+ using a large enough (dozens of kBs) structured message
+ it is possible to overflow the signed short type which leads
+ to rsyslog crash. (applies to msg.c, the message object)
+ Thanks to Jiri Vymazal for the patch.
+- core bugfix for AIX: timeval2syslogTime now handle the bias according to
+ local time zone as documented by IBM.
+- imfile feature: add configuration parameter to force parsing of read logs
+- imczmq bugfix:
+ Release zframe following read from socket
+ Make the 0MQ frame pointer local to the receive loop and destroy the
+ frame as soon as the contents have been copied. This avoids:
+ * a memory leak should the receive loop execute more than once
+ * referencing an un-initialized value during cleanup (finalize_it)
+ Thanks to Mark Gillott for the patch.
+- omclickhouse bugfix: default template unusable
+ STDSQL option added to the default template used in output module of clickhouse
+ Thanks to gagandeep trivedi for the patch.
+- omclickhouse "bugfix": work-around failed error detection
+ omclickhouse uses a questionable method to check if a request generated
+ an error. We have seen the method to fail when we slightly upgraded clickhouse
+ server in CI testing.
+ This commit makes the method a bit more reliable without really fixing it.
+ But it's at least a short-term solution.
+ This should be changed to a proper status check. I assume such is possible.
+ see also https://github.com/rsyslog/rsyslog/issues/3485
+- imptcp bugfix: overly long socket bind path can lead to segfault
+ if the `path` input parameter is overly long (e.g. more than 108
+ characters on some platforms) a non-terminated string is generated
+ and then passed to OS API. This can lead to all sorts of problems
+ including segfault.
+ We detected that based on gcc-8 warnings during code inspection.
+ No real-world problem case is known.
+- ommongodb bugfix: improper stpncpy() calls
+- testbench tcpflood: add new transport option relp-tls
+ Tcpflood can now send messages via relp with tls support.
+ closes https://github.com/rsyslog/rsyslog/issues/3448
+- testbench: mmdb valgrind tests failed is srcdir env was not set
+- testbench: add omclickhouse tests
+- testbench bugfix: some long-running tests had too low runtime allowance
+ closes https://github.com/rsyslog/rsyslog/issues/3493
+- testbench bugfix: daqueue-dirty-shutdown test
+ This test occasionally failed with left-over spool files. As far as we
+ have analyzed, this is due to the use of an invalid shutdown timeout
+ (very short) in the second phase of the test. It looks like this is
+ actually a copy&paste error from phase one. Behavior of rsyslog was
+ correct, but the test itself created a false positive.
+ We have corrected the timeout now and also modernized the test
+ a bit.
+ closes https://github.com/rsyslog/rsyslog/issues/2122
+- testbench bugfix: some omhttp tests had compatibility issues with Python 3
+ Thanks to Thomas D. (whissi) for the patch.
+------------------------------------------------------------------------------
+Version 8.1901.0 (aka 2019.01) 2019-01-22
+- new version scheme: 8.yymm.0 - version now depends on release date
+ see also https://rainer.gerhards.net/2018/12/rsyslog-version-numbering-change.html
+- queue: add support for minimum batch sizes
+ closes https://github.com/rsyslog/rsyslog/issues/495
+- change queue.timeoutshutdown default to 10 for action queues
+ The previous default of 0 gave action queues no real chance to
+ shutdown - at the time they were applied, they were usually already
+ expired (computing the absolute timeout took a small amount of time).
+ So we change this now to 10ms, which still is very quick but gives
+ the queue at least a chance to shutdown itself. That in turn
+ smoothes the whole shutdown process.
+ If a very large number of action queues is used this may lead
+ to a very slightly longer shutdown time, albeit this is very
+ improbable.
+- omclickhouse: new output module for clickhouse
+ This output module adds the possibility to send
+ INSERT querys to a Clickhouse database. See doc for details.
+ The messages are sent via a REST interface.
+ This commit also adds support of the testbench
+ for clickhouse tests, as well as various tests.
+ Closes https://github.com/rsyslog/rsyslog/issues/2272
+- omkafka: Add ability to dump librdkafka statistics to a file
+ Use statsFile to specify statistics output file; also requires
+ setting statistics.interval.ms confparam to a non-zero value.
+ Thanks to github user pcullen65 for the contribution.
+- tls(ossl/gtls): add new Option "StreamDriver.PermitExpiredCerts"
+ The new Option can have one of the following values:
+ on = Expired certificates are allowed
+ off = Expired certificates are not allowed
+ warn = Expired certificates are allowed but warning will be logged (Default)
+ Includes necessary tests to validate new code.
+ closes https://github.com/rsyslog/rsyslog/issues/3364
+- action: add "action.resumeIntervalMax" parameter
+ This parameter permits to set an upper limit on the growth of the
+ retry interval. This is most useful when a target has extended
+ outage, in which case retries can happen very infrequently.
+ closes https://github.com/rsyslog/rsyslog/issues/3401
+- report child process exit status according to config parameter
+ Add new global setting 'reportChildProcessExits' with possible values
+ 'none|errors|all' (default 'errors'), and new global function
+ 'glblReportChildProcessExit' to report the exit status of a child
+ process according to the setting.
+ Invoke the report function whenever rsyslog reaps a child, namely in:
+ - rsyslogd.c (SIGCHLD signal handler)
+ - omprog
+ - mmexternal
+ - srutils.c (execProg function, invoked from stream.c and omshell)
+ Remove redundant "reaped by main loop" info log in omprog.
+ Promote debug message in mmexternal indicating that the child has
+ terminated prematurely to a warning log, like in omprog.
+ closes https://github.com/rsyslog/rsyslog/issues/3281
+ Thanks to Joan Sala for contributing this.
+- build system: add capability to turn off helgrind tests
+ we add configure switch --enable-helgrind. We need to turn helgrind off
+ when we use clang coverage instrumentation. The instrumentation injects
+ mt-unsafe counter updates which we seem to be unable to suppress.
+ Note: for gcc this was possible, because they all occurred in a utility
+ function. For clang, they are inlined so we get many -and changing- violations.
+ see also https://github.com/rsyslog/rsyslog/issues/3361#issuecomment-450502569
+- imzmq3/omzmq3: remove modules
+ according to @brianknox (their author) these modules are outdated:
+ https://twitter.com/taotetek/status/931860786959540224
+ They are replaced by imczmq/omczmq and are no longer maintained. We put a
+ depreciation notice into the modules a year ago, and now it finally is time
+ to remove them. They do NOT build in any case, except if very old versions
+ of the 0mq ecosystem are used.
+ see also https://github.com/rsyslog/rsyslog/issues/2100
+ closes https://github.com/rsyslog/rsyslog/issues/2103
+- bugfix omusrmsg: don't overwrite previous set _PATH_DEV value
+ Since commit 56ace5e418d149af27586c7c1264fccfbc6badf1, omusrmsg was broken
+ because "memcpy()" is not a suitable substitute for "strncat()" in this
+ context, it is actually replacing the previous added content.
+ Bug: https://bugs.gentoo.org/673004
+ Closes: https://github.com/rsyslog/rsyslog/issues/3346
+ Thanks to Thomas D. (whissi) for the patch.
+- bugfix ossl TLS driver: fixed authentication mode anon
+ authentication mode "anon" was not properly supported in ossl TLS
+ driver; if selected, did still require a full certificate.
+ closes: https://github.com/rsyslog/rsyslog/issues/3037
+- bugfix tls subsystem: Receiver hang due to insufficient TLS buffersize.
+ gtls and ossl driver used a default buffersize of 8KiB to store received
+ TLS packets. When tls read returned more than buffersize, the additional
+ buffer was not processed until new data arrived on the socket again.
+ TLS RFCs require up to 16KiB+1 buffer size for a single TLS record.
+ closes https://github.com/rsyslog/rsyslog/issues/3325
+- bugfix pmpanngfw: build issue due to non-matching data types in comparison
+ Thanks to Narasimha Datta for the patch.
+- omfile: work-around for "Bad file descriptor" errors
+ This works-around an issue we can reproduce e.g. via the
+ imtcp-tls-ossl-x509fingerprint.sh test. Here, omfile gets a write
+ error with reason EBADF. So far, I was not able to see an actual
+ coding error. However I traced this down to a multithreaded race
+ on open and close calls. I am very surprised to see this type
+ of issue, as I think the kernel guarantees that it does not happen.
+ Here is what I see in strace -f:
+ openssl accepts a socket:
+ [pid 66386] accept(4, {sa_family=AF_INET, sin_port=htons(59054), sin_addr=inet_addr("127.0.0.1")}, [128->16]) = 10
+ then, it works a bit with that socket, detects a failure and shuts it down. Sometimes, at the very same instant omfile on another thread tries to open on output file. Then the following happens:
+ [pid 66386] close(10) = 0
+ [pid 66389] openat(AT_FDCWD, "./rstb_356100_31fa9d20.out.log", O_WRONLY|O_CREAT|O_NOCTTY|O_APPEND|O_CLOEXEC, 0644 <unfinished ...>
+ [pid 66386] close(10 <unfinished ...>
+ [pid 66389] <... openat resumed> ) = 10
+ [pid 66386] <... close resumed> ) = 0
+ [pid 66386] poll([{fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 2, -1 <unfinished ...>
+ [pid 66389] write(2, "file './rstb_356100_31fa9d20.out"..., 66file './rstb_356100_31fa9d20.out.log' opened as #10 with mode 420
+ ) = 66
+ [pid 66389] ioctl(10, TCGETS, 0x7f59aeb89540) = -1 EBADF (Bad file descriptor)
+ This is **literally** from the log, without deleting or reordering
+ lines. I read it so that there is a race between `open` and `close`
+ where fd 10 is reused, but seemingly closed - resulting in the `EBADF`
+ While it smells like a kernel issue, it may be a well-hidden program
+ bug - if so, one I currently do not find. HOWEVER, this commit
+ works around the issue by reopening the file when we receive EBADF.
+ That's the best thing to do in that case, especially if it really is
+ a kernel bug. Data loss should not occur, as the previous writes
+ succeeded in that case.
+ The backdraw of this work-around is that it only "fixes" omfile. In
+ theory every part of rsyslog can be affected by this issues (queue
+ files, for example). So this is not to be considered a final solution
+ of the root issues (but a big step forward for known problem cases).
+ see also https://github.com/rsyslog/rsyslog/issues/3404
+- omhttp bugfix: segfault due to NULL pointer access
+ many thanks to Gerardo Puerta for the patch
+- omkafka bugfix: segfault when running in debug mode using dynamic topics
+ This should only affect test environments, as debug mode is not
+ suitable for production (and really does not work when running for
+ extended period of time).
+- testbench bugfix: TLS syslog tests for "anon" mode were broken
+ They did not detect when "anon" mode was not properly supported by the
+ drivers.
+- test tooling bugfix: correct tcpflood error messages
+ it looks like tcpflood's openssl code stems partly back to tcpdump, at
+ least the error messages indicate this. Thankfully tcpdump is BSD licensed,
+ so this should not be a big issue. Nevertheless, the incorrect program name
+ in error messages needs to be corrected, and this is what this commit does.
+- tcpflood bugfix: tool did not terminate on certificate error
+ when tcpflood detected a certificate error, it reported an
+ error message but did not abort. This could make errors undetectable
+ during CI runs.
+ also fix tests which did not properly provide CA cert (which than
+ caused the error).
+- testbench: fix issues with journal testing
+ The configure/Makefile checks were not correct, leading to the
+ build of journal components when not necessary, even if not
+ supported by the platform. Thus lead to invalid build and test
+ failures.
+- testbench: add tests for "certless" tcp/tls
+ This adds a test to ensure that a client without certificate can
+ connect to a server with certificates. So it is not exactly
+ "certless".
+ The prime intent of this test is to match config suggestions given
+ by log hosting companies (like loggly) and so ensure that we do
+ not accidentally break them. This is especially important as the
+ capability for certless clients was not properly documented and
+ also become forgotten by the rsyslog team.
+ see also https://github.com/rsyslog/rsyslog/issues/3413
+- CI
+ - further improve testbench robustness against slow machines
+ - testbench: add tests for parser.EscapeControlCharacterTab global option
+ - testbench: Updated all expired x.509 certs
+ Closes https://github.com/rsyslog/rsyslog/issues/3348
+ - fix a potential race in CI debug mode which can lead to segfault
+ only when instructed to do so, rsyslog may emit a "final worker thread shutdown"
+ messages. This is usually only enabled in CI and/or other testing. If enabled,
+ the code has a race on the pWti object which can lead to segfault or abort.
+ Only system which explicitly enable this CI aid are affected (running in debug
+ mode alone is NOT sufficient).
+ This is a regression from 8.40.0.
+ - testbench: improve robustness against slow CI, gen. improvements
+ * add an overall timeout value for tests - if running longer,
+ testbench framework tries to FAIL and end test. Note that
+ this is not bullet-proof and not intended to be so.
+ * guard against hanging rsyslog instances via a new imdiag
+ feature to abort after n number of seconds; among others,
+ this guards as against timeout-cancel in CI, which is always
+ pretty hard to diagnose - now we see these errors in test-suite.log
+ * fix a bug in tcp zip test, which actually did not use zip mode
+ * experimentally add debug output to better understand
+ shutdown_when_empty operation; goal is to improve understanding
+ and then remove that code again.
+ * improve shutdown predicate for a couple of tests
+ * made travis run make check with two parallel threads, for which
+ we seem ready now. Nevertheless, it's still experimental and we
+ may roll this back if required.
+ * testbench: disable omprog tests that hang under coverage instrumentation
+ When gcc coverage instrumentation is used, these tests hang. They work
+ with clang coverage instrumentation, but for some reason clang does not
+ give us full reports (at least not when used together with CodeCov.io).
+ We have tried to troubleshoot this for hours and hours - now is time to
+ give up until someone comes up with a bright idea. So we make the affected
+ tests skip themselves when they detect gcc with coverage instrumentation.
+ * testbench: add new test for imfile and logrotate in copytruncate mode
+ * testbench: add new omkafka tests for dynamic topics
+ * travis: do no longer run 0mq tests
+ This often causes trouble when the packages are rebuild by the 0mq project
+ (which happens frequently). We already do intensive testing of the 0mq
+ components in the buildbot infrastructure, where we use dedicated containers.
+ This is reliable, as the containers already contain everything needed and so
+ do not need to reach out to the 0mq package archives. In the light of this,
+ let's save us the trouble of Travis failures. The only downside is that
+ users cannot pre-test with their local Travis when modifying 0mq modules,
+ which is quite acceptable.
+------------------------------------------------------------------------------
+Version 8.40.0 [v8-stable] 2018-12-11
+- mmkubernetes: add support for sslpartialchain for openssl
+ If `"on"`, this will set the OpenSSL certificate store flag
+ `X509_V_FLAG_PARTIAL_CHAIN`. This will allow you to verify the Kubernetes API
+ server cert with only an intermediate CA cert in your local trust store, rather
+ than having to have the entire intermediate CA + root CA chain in your local
+ trust store. See also `man s_client` - the `-partial_chain` flag.
+ This option is only available if rsyslog was built with support for OpenSSL and
+ only if the `X509_V_FLAG_PARTIAL_CHAIN` flag is available. If you attempt to
+ set this parameter on other platforms, you will get an `INFO` level log
+ message. This was done so that you could use the same configuration on
+ different platforms.
+- openssl driver: improved error messages
+ also fixes misleading wording of some error messages
+ closes https://github.com/rsyslog/rsyslog/issues/3238
+- imfile: disable file vs directory error on symlinks
+ The file/directory node-object alignment now ignores symlinks. Previously
+ it reported error on each directory symlink spamming user error logs.
+ Thanks to Jiri Vymazal for the patch.
+- cleanup: remove no longer needed --enable-rtinst code
+ configure option --enable-rtinst is gone-away since a while, but there were
+ still some supporting code left. It required careful analysis what could
+ actually be removed. This is now done and the code fully cleaned up. This
+ greatly simplifies the code and also makes it better readable for
+ developers which are not deep inside the rsyslog code base.
+ As a positive side effect, we could eliminate mutex calls inside
+ the debug system. This means we are more likely to reproduce race
+ conditions in runs with debugging enabled.
+ closes https://github.com/rsyslog/rsyslog/issues/2211
+- bugfix imfile: rsyslog re-sends data for files larger 2GiB
+ This occurs always if and only if
+ - reopenOnTruncate="on" is set
+ - file grows over 2GiB in size
+ Then, the data is continuously re-sent until the file becomes smaller
+ 2GiB (due to truncation) or is deleted.
+ It is a regression introduced by 2d15cbc8221e385c5aa821e4a851d7498ed81850
+ closes https://github.com/rsyslog/rsyslog/issues/3249
+- config: fix segfault in backticks "echo" expansion of undefined variables
+ The bug was introduced in commit abe0434 (config: enhance backticks "echo"
+ capability). The getenv() result passed to strlen() and es_addBuf() may be
+ NULL if the environment variable does not exist, resulting in a segfault.
+ Thanks to Julien Thomas for the patch.
+ fixes https://github.com/rsyslog/rsyslog/issues/3006
+- bugfix imsolaris: message timestamps on Solaris
+ On Solaris messages don't have their time directly in the raw body but in
+ a separate log_ctl structure which is currently not used.
+ When message is logged and processed, rsyslogd gives it current time because
+ it ignores the actual one. That means that old messages (e.g. from system
+ reboot) get timestamp of processing instead of the reboot itself (it is
+ not a problem for live logging where now is used anyway).
+ Thanks to Jakub Kulik for the patch.
+- bugfix build system: "make distcheck" did not work for mysql tests
+- bugfix build system: don't link liblogging-stdlog when available but not enabled
+ When liblogging-stdlog was available but configure option "--disable-liblogging-stdlog"
+ was set, rsyslog was still linking against liblogging-stdlog.
+ This commit will ensure that rsyslog will only link against liblogging-stdlog when
+ "--enable-liblogging-stdlog" was set.
+ see also: https://bugs.gentoo.org/667836
+- bugfix RainerScript: abs() could return negative value, now in range [0..max]
+ Thanks to Harshvardhan Shrivastava for providing the patch
+- bugfix debug output: date property options output wrongly
+ inside debug logging, the date property options were not all
+ properly converted into strings. Some of the newer ones were
+ invalidly flagged as "UNKNOWN". This is primarily a cosmetic
+ problem and has no effect other than puzzling folks looking at
+ the debug log.
+- bugfix omhttp: did not compile on some platforms
+- CI
+ * made mysql-based tests (ommysql and omlibdbi) work inside containers
+ * bugfix testbench: do not execute libgcrypt tests if disabled
+ closes https://github.com/rsyslog/rsyslog/issues/3228
+ * testbench: grep failed when string starting with "-" was used
+ The search term was mistakenly interpreted as an option.
+ * testbench: support auto-start/-stop of mysqld
+ This is required to run mysql/mariadb tests inside containers.
+ closes https://github.com/rsyslog/rsyslog/issues/3223
+ * improve bash coding style and fix a some bug in testbench
+ - duplicate diag.sh init call was not detected due to typo
+ - queue-persists test did not work correctly
+ - some general testbench framework improvements
+ issues found be shellcheck, fixes brought up other work to do
+ * testbench: improve journal tests and testbench framework
+ improving both style and reliability of journal tests; along that way
+ also improve testbench framework:
+ - do cleanup on error_exit and skip
+ - explicit skip handler (vs exit 77)
+ this permits us to do better cleanup
+ - new testbench functions for journal-specific functionality
+ reduce code duplication and make things easier to maintain in the
+ future
+ - provide a way to do valgrind and non-valgrind tests with a single
+ test file
+ see also https://github.com/rsyslog/rsyslog/issues/2564
+ * testbench: improve framework, harden rscript http test
+ - the test now tries to detect unavailable http server, which
+ should not result in test failure
+ - equivalent valgrind test changed to new method, removing code
+ duplication
+ - testbench supports
+ * new exit code 177, which indicates environment error, makes
+ test SKIP but still reports the failure
+ * new exitcode, logurl stats reporting fields
+ * report buildbot builder (if provided) in failure report
+ * testbench: add test for mmjsonparse with unparsable data
+ * testbench: make es-bulk-retry test more reliable
+ We now no longer depend on a fixed 'sleep' command but rather
+ check the output file for what we expect. This is much more
+ robust on slow test machines.
+ We believe this closes the below-mentioned issue. If not, it
+ should be re-opened.
+ closes https://github.com/rsyslog/rsyslog/issues/3104
+ * testbench: suppress valgrind error caused by pthreads lib
+ finally I give up and honestly think this is a problem in pthreads and
+ not in rsyslog code. See issue below and previous commit for more
+ information.
+ Unfortunately, this will also mask off cases where we do not properly
+ call pthread_join() albeit it is needed. Nevertheless, this bug is
+ causing so much CI grief that it is definitely worth it.
+ closes https://github.com/rsyslog/rsyslog/issues/2902
+ * testbench: made a couple of (unnamed due to too many) test more robust
+ against slow (CI) machines
+------------------------------------------------------------------------------
+Version 8.39.0 [v8-stable] 2018-10-30
+- imfile: improve truncation detection
+ previously, truncation was only detected at end of file. Especially with
+ busy files that could cause loss of data and possibly also stall imfile
+ reading. The new code now also checks during each read. Obviously, there
+ is some additional overhead associated with that, but this is unavoidable.
+ It still is highly recommended NOT to turn on "reopenOnTruncate" in imfile.
+ Note that there are also inherent reliability issues. There is no way to
+ "fix" these, as they are caused by races between the process(es) who truncate
+ and rsyslog reading the file. But with the new code, the "problem window"
+ should be much smaller and, more importantly, imfile should not stall.
+ see also https://github.com/rsyslog/rsyslog/issues/2659
+ see also https://github.com/rsyslog/rsyslog/issues/1605
+- imjournal: work around journald excessive reloading behavior
+ This is workaround for possible imjournal interaction with systemd
+ where journal invalidate fix is not present. The code tries to
+ detect SD_JOURNAL_INVALIDATE loop and not reload after each call.
+ Thanks to Jiri Vymazal for the patch.
+- errmsg: remove no longer needed code
+ refactored code (over a long time) so that object-ish style is no longer
+ needed and could now finally be removed; We also refactored the last
+ component (omhttp contrib module) that used the old interface.
+ closes https://github.com/rsyslog/rsyslog/issues/1684
+- queue bugfix: invalid error message on queue startup
+ due to some old regression (commit not exactly identified, but for
+ sure a regression, 9 years ago it was correct) an error message
+ is emitted when no .qi file exists on startup of the queue, which
+ is a normal condition.
+ Actually, the code should not have tried to open the .qi file in
+ the first place because it detected that it did not exist. That
+ (necessary) shortcut had been removed a while ago.
+ closes https://github.com/rsyslog/rsyslog/issues/3117
+- bugfix imrelp: regression with legacy configuration startup fail
+ Startup of a relp listener failed if legacy configuration was used.
+ caused by commit: 32b71daa8aadb8f16fe0ca2945e54d593f47a824
+ closes https://github.com/rsyslog/rsyslog/issues/3106
+- bugfix imudp: stall of connection and/or potential segfault
+ There was a regression in 493279b790a8cdace8ccbc2c5136985e820dd2fa.
+ This regression may cause stop (or delay) of reception from some systems
+ and may also cause a segfault. Triggering condition is that at least
+ one listener could not be created.
+ Thanks to Jens Låås for the patch.
+- bugfix gcry crypto driver: small memleak
+ If a crypto key is specified directly via the key="" parameter,
+ the storage for that key is not freed, causing a small memleak.
+ Note that the problem occurs only once per context, so this
+ should not cause real issues. Even more so, as specifying a
+ key directly is meant only for testing purposes and is strongly
+ discouraged for production use.
+ Detected by internal testing, no actual fail case known.
+- fix potential misaddressing in encryption subsystem
+ could happen if e.g. disk queues were encrypted
+ not seen in practice but caught by testbench test
+- ksi subsystem changes
+ * enhance debug logging
+ * disable unsafe SHA1 algorithm
+ Thanks to Allan Park for the patch.
+- bugfix core: regex compile error messages could be incorrect
+- bugfix core: potential hang on rsyslog termination
+ The root cause was a deadlock during worker startup. This could
+ happen for example when a DA queue needed to persist data during
+ shutdown.
+ Fail condition:
+ * startup request for a new worker
+ * initialization of that worker
+ * immediate detection that the worker can or must shutdown
+ * main thread waiting for worker running state, which it skips,
+ and so the main thread hangs inside a loop
+ closes https://github.com/rsyslog/rsyslog/issues/3094
+- bugfix imkafka: system hang when backgrounded
+ imkafka initializes librdkafka too early (before the fork). This leads
+ to hangs in various parts of the system - not only im imkafka but
+ other functions as well (e.g. getaddrinfo() calls).
+ closes https://github.com/rsyslog/rsyslog/issues/3180
+- bugfix imfile: file change was not reliably detected
+ A change in the inode was not detected under all circumstances,
+ most importantly not in some logrotate cases.
+ Includes new tests made by Andre Lorbach. They now use the
+ logrotate tool natively to reproduce the issue.
+ closes https://github.com/rsyslog/rsyslog/issues/2659
+ closes https://github.com/rsyslog/rsyslog/issues/1605
+- bugfix imrelp: do not fail build if librelp does not have relpSrvSetLstnAddr
+ closes https://github.com/rsyslog/rsyslog/issues/2938
+- bugfix queue subsystem: DA queue did ignore encryption settings
+ closes https://github.com/rsyslog/rsyslog/issues/3066
+ closes https://github.com/rsyslog/rsyslog/issues/2575
+- bugfix KSI: lmsig-ksils12 module skips signing the last block
+ Thanks to Allan Park for the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/3105
+- bugfix fmhash: function hash64mod sometimes returned wrong result
+ Thanks to Harshvardhan Shrivastava for providing the patch
+ closes https://github.com/rsyslog/rsyslog/issues/3025
+- bugfix core/debug: data written to random fd 2 under some debug settings
+ This happens only during auto-backgrounding, where we cannot any longer
+ access stderr. Whatever is opened with fd2 receives some debug messages.
+ Note that the specific feature is usually turned on only in CI runs.
+- cleanup: removed no longer needed code
+ Code that was unused for quite a while or did not really belong to the
+ project identified and removed.
+- overall code cleanup
+ e.g. remove unused code, replace bad bash constructs, etc...
+- CI:
+ * some small improvements in testbench plumbing
+ e.g. (`cmd` replaced by $(cmd), removed useless use of cat, ...)
+ * testbench: improve plumbing for kafka tests
+ - Removed all sleeps where possible.
+ - Moved all kafka start/stop/download logic into functions.
+ - Moved kafka/zookeeper stop into error_exit and exit_test.
+ - Kafka/Zookeeper cleanup only done on success now.
+ - Kafka/Zookeeper logfiles automatically dumped on error_exit only now.
+ - Added cleanup for Kafka/Zookeeper instances into CI/buildbot_cleanup.sh
+ - added new tests
+ * testbench: fix incompatibility of one omprog test with Python3
+ Python3 writes to stderr immediately, and this caused the
+ captured output to differ with respect to Python2. Simplified
+ the test to do a single write to stderr. Also a cast to int
+ was needed when calculating 'numRepeats'.
+ closes https://github.com/rsyslog/rsyslog/issues/3030
+ * testbench: fixed imfile parallel issues
+ - Fixed timing issues in some imfile wildcard/regex tests
+ - Added touch command in imfile wildcard tests to make sure directories
+ exist before files are created in it if IO is under stress.
+ - changed content checking in some tests to use "content_check_with_count"
+ with check timeouts instead of using fixed sleeptimes.
+ * testbench: new basic tests
+ These ensure that for some modules that did not have any tests at all
+ we have at least a minimal coverage (module loads, activates, is able
+ to emit error messages). Of course, further improvements would make
+ much sense. Modules:
+ - ommail
+ - testbench: new tests for disk queue encryption
+ - testbench: improved auto-diagnostics for hanging instance
+ - testbench: hardened kafka test against failing kafka subsystem,
+ not in 100% of the cases, but at least in some that frequently occur
+ - failing tests now report failure status so that we can get stats
+ on unreliable tests
+ - testbench tooling: fix incorrect tcpflood TLS parameter check
+ could lead to segfault when started
+ - bugfix testbench tooling: tcpflood invalid type in calloc (openssl mode)
+ It is unlikely that this has caused a real issue, as long as pointers
+ are all of the same size (what is highly probable).
+ detected by cppcheck via Codacy.com
+------------------------------------------------------------------------------
+Version 8.38.0 [v8-stable] 2018-09-18
+- AIX: make basic modules work again
+- make rsyslog build on AIX again
+ ... at least for a limited set of default modules
+- imfile: support for endmsg.regex
+ This adds support for endmsg.regex. It is similar to
+ startmsg.regex except that it matches the line that denotes
+ the end of the message, rather than the start of the next message.
+ This is primarily for container log file use cases such as this:
+ date stdout P start of message
+ date stdout P middle of message
+ date stdout F end of message
+ The `F` means this is the line which contains the final part of
+ the message. The fully assembled message should be
+ `start of message middle of message end of message`.
+ `startmsg.regex="^[^ ]+ stdout F "` will match.
+ Thanks to Richard Megginson for the patch.
+- imkafka: add parameter "parseHostName"
+ This enables imkafka to parse the hostname from log message.
+ Previously that was not possible. It was most likely a bug, but
+ one that users may count on. The new parameter "ParseHostName"
+ (default is off) controls this behavior. Default is to NOT
+ parse the hostname.
+ Thanks to github user snaix for the contribution.
+- im[p]tcp: improve error message on connect failure
+ Now a message with the actual OS error is emitted, making things far
+ easier to troubleshoot.
+- imkafka: implement multithreading support for kafka consumers.
+ Each consumer runs in it's own consumer thread now. New tests have also
+ been added for this.
+- omelasticsearch: write all header metadata to $.omes for retries
+ Write all of the original request metadata fields to $.omes for
+ the retry, if present. This may include all of the following:
+ _index, _type, _id, _parent, pipeline
+ This is in addition to the fields from the response. If the same
+ field name exists in the request metadata and the response, the
+ field from the request will be used, in order to facilitate
+ retrying the exact same request.
+ Thanks to Richard Megginson for the patch.
+- core: improve error message on module load fail
+ The error message now lists all dlopen() errors in depth. This is
+ especially useful if the error is due to missing symbols or file
+ format errors.
+- core/queue: add error message if queue file cannot be accessed
+ When having a disk-assisted queue without permission to write to the specified
+ queue file an error will now be generated.
+ closes https://github.com/rsyslog/rsyslog/issues/323
+- imtcp/imudp: new option preservecase for managing the case of FROMHOST value
+ default is left at current behavior
+ see also https://github.com/rsyslog/rsyslog/pull/2774
+ see also https://bugzilla.redhat.com/show_bug.cgi?id=1309698
+- omprog: add feedback timeout and keep-alive feature
+ - Restart the program if it does not respond within timeout.
+ - New setting 'confirmTimeout' (default 10 seconds).
+ - Allow the program to provide keep-alive feedback when a
+ message requires long-running processing.
+ - Improve efficiency when reading feedback line (use buffer).
+ Retry interrupted writes/reads to/from pipe.
+ - New setting 'reportFailures' for reporting error messages
+ from the program.
+ - Report child termination when writing to pipe.
+ - Minor refactor: renamed writePipe function to sendMessage,
+ renamed readPipe to readStatus.
+ Thanks to Joan Sala for contributing this.
+- omprog: fix forceSingleInstance configuration option
+ The forceSingleInstance option did not work as intended. Even
+ if set multiple instances were spawned. This most probably
+ was a regression from 0453b1670fc34c96d31ee7c9a370f0f5ec24744a
+ The code was broken roughly 3.5yrs ago, so it looks like the
+ issue was little-noticed. This also means that potentially some users
+ may see the bugfix as change of behavior. If so, just remove
+ the option.
+ closes https://github.com/rsyslog/rsyslog/issues/2813
+ closes https://github.com/rsyslog/rsyslog/issues/2468
+ Thanks to Joan Sala for contributing this.
+- imfile: implement file-id, used in state file
+ This ensures that files with the same inodes are not accidentally treated
+ as equal, at least within the limits of the file id hash (see doc for
+ details).
+ We use the siphash reference implementation to generate our non-cryptographic
+ hash.
+ closes https://github.com/rsyslog/rsyslog/issues/2530
+ closes https://github.com/rsyslog/rsyslog/issues/2231
+- imfile: experimental input throttling feature
+ The new input parameter delay.message has been added. It specifies
+ a delay in microseconds after each line read.
+ closes https://github.com/rsyslog/rsyslog/issues/2960
+- core: emit TZ warning on startup not on Linux non-container
+ On Linux it seems common that the TZ variable is NOT properly set.
+ There are some concerns that the warning related to rsyslog correcting
+ this confuses users. It also seems that the corrective action rsyslog
+ takes is right, and so there is no hard need to inform users on that.
+ In Linux containers, however, the warning seems to be useful as the
+ timezone setup there seems to be frequently-enough different and
+ rsyslog's corrective action may not be correct.
+ So we now check if we are running under Linux and not within a container.
+ If so, we do not emit the warning. In all other case, we do. This is
+ based on the assumption that other unixoid systems still should have
+ TZ properly set.
+ closes https://github.com/rsyslog/rsyslog/issues/2994
+- omkafka:
+ * better debug information
+ * Fixed minor issue in omkafka producing wrong kafka timestamps when
+ msgTimestamp was NULL.
+ * Setting RD_KAFKA_V_KEY(NULL, 0) in rd_kafka_producev now when KEY is not
+ configured.
+ * Fixed minor issue when rsyslog is compiled with --enable-debug and
+ librdkafka is too old.
+- omfile bugfix: errant error message when dynafile param needed
+ also fixes related message in contributed module omfile-hardened
+ closes https://github.com/rsyslog/rsyslog/issues/2975
+ Thanks to Frank Bicknell for the patch
+- omhttp: new contributed module
+ Thanks to Christian Tramnitz for contributing it.
+ Some more info at https://github.com/rsyslog/rsyslog/pull/2782
+- mmkubernetes: action fails preparation cycle if kubernetes API ...
+ ... destroys resource during bootup sequence
+ The plugin was not handling 404 Not Found correctly when looking
+ up pods and namespaces. In this case, we assume the pod/namespace
+ was deleted, annotate the record with whatever metadata we have,
+ and cache the fact that the pod/namespace is missing so we don't
+ attempt to look it up again.
+ In addition, the plugin was not handling error 429 Busy correctly.
+ In this case, it should also annotate the record with whatever
+ metadata it has, and _not_ cache anything. By default the plugin
+ will retry every 5 seconds to connect to Kubernetes. This
+ behavior is controlled by the new config param `busyretryinterval`.
+ This commit also adds impstats counters so that admins can
+ view the state of the plugin to see if the lookups are working
+ or are returning errors. The stats are reported per-instance
+ or per-action to facilitate using multiple different actions
+ for different Kubernetes servers.
+ This commit also adds support for client cert auth to
+ Kubernetes via the two new config params `tls.mycert` and
+ `tls.myprivkey`.
+ Thanks to Richard Megginson for the patch.
+- bugfix pmnormalize/core: several memory leaks, invld property handling
+ - major memory leak which occurred once per message processed
+ So this could lead to OOM. Caused by improper free of json
+ structure
+ - another two major leaks of similar magnitude could occur if
+ "fromhost-ip" and/or "fromhost" properties were set
+ - minor leaks upon termination. these were unproblematic as
+ static and only occurred immediately before shutdown.
+ But they triggered memory debugger errors.
+ - fixed test which did not check for mem leaks albeit it should
+ - core invalid handling of the "fromhost" property, if set via
+ the MsgSetPropsViaJSON() call. This was primarily of concern
+ for pmnormalize and mmexternal, and only if these properties
+ were used by either the rulebase or the external program
+ response.
+ Actually, most of the leaks go back to rsyslog core, but that
+ core functionality was not used by other modules in the same
+ way. But if some other would have used it, the effects would
+ have been the same (so be aware if you wrote custom modules).
+- bugfix imptcp: fixed pointers for session counting
+ imptcp open, failedopen, and closed pstats counters were assigned the wrong
+ name, thus pstats values did provide a totally wrong picture of what was
+ going on.
+ Thanks to github user jeverakes for the patch.
+- bugfix omprog: invalid memory access on partial writes to pipe
+ When sending logs to the program, in case of a partial write to the pipe,
+ invalid data was sent, or an invalid memory access could occur. (A
+ partial write can occur if the syscall is interrupted or the pipe is full.)
+ Thanks to Joan Sala for contributing this.
+- bugfix omprog: rsyslog's environment was not passed to script
+ closes https://github.com/rsyslog/rsyslog/issues/2921
+- bugfix omprog: severity of some log messages in waitForChild corrected
+ Log some messages related to child process termination as info/warn
+ instead of error.
+- bugfix imfile: files which were loaded via symlink were not always followed
+ They were stopped watching after being rotated.
+ closes https://github.com/rsyslog/rsyslog/issues/2229
+ Thanks to Jiri Vymazal for the patch.
+- bugfix imfile: potential misaddressing when processing symlinks
+ Fixed parent name when processing symlinks. Detected during code review.
+ There was a garbage byte left before which could cause errors down the
+ road.
+ Thanks to Jiri Vymazal for the patch.
+- bugfix ommongodb: build issue if mongo-c-driver is not compiled with TLS
+ Let ommongodb module works even if mongo-c-driver is not compiled with SSL support.
+ Thanks to Jérémie Jourdin for the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/2907
+- CI:
+ * many changes with the goal to support parallel test execution, e.g.
+ use dynamic ports and file names, changes to testing tools, etc.
+ * kafka tests re-enabled, as they should now no longer be racy. However,
+ this has yet to be proven in practice.
+ * upgrading kafka server version to current
+ * Fixed server configuration issues holding the kafka tests back from working
+ * Fixed some config issues in all sndrcv kafka tests.
+ * Generating dynamically kafka topics now for each kafka test.
+ * Reenabled kafka_multi test which runs a test on 3 kafka/zookeeper instances
+------------------------------------------------------------------------------
+Version 8.37.0 [v8-stable] 2018-08-07
+- build system: add --enable-default-tests ./configure option
+ This permits to control the "default tests" in testbench runs. These
+ are those tests that do not need a special configure option. There are
+ some situations where we really want to turn them of so that we can
+ run tests only for a specific component (e.g. ElasticSearch).
+ This commit also removes the --enable-testbench[12] configure switches,
+ which were introduced just to work-around travis runtime restrictions.
+ With the new CI setup and new options we could reduce the Travis runtime
+ dramatically and so we do not need them any longer.
+- overall adaptation to gcc 8 which emits new warnings
+- fix some build warnings on 32bit systems, namely armhf architecture
+- ommail change of behavior: "enable.body" default now "on"
+ This was always documented to be "on", but actually was "off". Usually, we
+ fix the doc, but after long discussion the agreement was that in this
+ specific case it was actually better to change the default.
+ see also: https://github.com/rsyslog/rsyslog/pull/2791
+- core/omfile: race in async writing mode
+ mutex was not properly locked at all times when the async writing buffer
+ was flushed
+ Thanks to Radovan Sroka for the patch.
+- core: provide a somewhat better default action name
+ We now include the module name (e.g. "omelasticsearch" or "builtin:omfile")
+ as part of the name. This is still not perfect, but hopefully a bit
+ easier to grasp.
+ see also https://github.com/rsyslog/rsyslog/issues/342
+- new global() parameter "abortOnUncleanConfig"
+ This provides a new-style alternative to $AbortOnUncleanConfig.
+ closes https://github.com/rsyslog/rsyslog/issues/2744
+- tcpflood no longer links with -lgrcypt
+ as this is no longer necessary for GnuTLS
+ Thanks to Michael Biebl for the patch.
+- imjournal: add journal-specific impstats counters
+ these provide some additional insight into journal operations
+ Thanks to Abdul Waheed for the patch.
+- imjournal: fixed startup on missing state file
+ When starting rsyslog with imjournal for first time it outputs
+ an error and plugin does not run because no state file exists yet.
+ Now it skips the loading and creates state file on first persist.
+ Thanks to Jiri Vymazal for the patch.
+- imjournal: fetching cursor on readJournal() and simplified pollJournal()
+ Fetching journal cursor in persistJournal could cause us to save
+ invalid cursor leading to duplicating messages further on, when new
+ WorkAroundJournalBug option is set we are saving it on each
+ readJournal() where we now that the state is good.
+ pollJournal() is now cleaner and faster, correctly handles INVALIDATE
+ status from journald and is able to continue polling after journal
+ flush. Also reduced POLL_TIMEOUT a bit as it caused rsyslog to exit
+ with error in corner cases for some ppc when left at full second.
+ re-factored imjournal CI tests with journal_print tool to have more
+ detailed error reporting.
+ Thanks to Jiri Vymazal for the patch.
+- config: enhance backticks "echo" capability
+ This is now more along the lines of what bash does. We now support
+ multiple environment variable expansions as well as constant text
+ between them.
+ example:
+ env SOMEPATH is set to "/var/log/custompath"
+ config is: param=`echo $SOMEPATH/myfile`
+ param than is expanded to "/var/log/custompath/myfile"
+ among others, this is also needed inside the testbench to properly
+ support "make distcheck".
+ Note: testbench tests follows via separate commit. There will be
+ no special test, as the testbench itself requires the functionality
+ at several places, so the coverage will be very good even without
+ a dedicated test.
+- imrelp: add support for setting address to bind to (#894)
+ This adds a new optional `address` parameter to `imrelp` inputs in order
+ to specify an address to bind to.
+ Based on support added by rsyslog/librelp@96eb5be
+ Thanks to Simon Wachter for the patch.
+- omrelp: permit all authmodes; updated tests
+ omrelp for some time limited authentication modes to those
+ that were known. While this was OK, it prevented the easy
+ introduction of new auth modes into librel.
+ This has now been changed; omrelp now checks the validity of
+ the authmode directly via librelp by doing some librelp calls
+ upon processing the configuration.
+ Also, some tests have been updated to check this feature and
+ also ensure that the new librelp mode "certvalid" works
+ (if it is available).
+- regexp.c: reduce lock contention when using glibc.
+ When using glibc, we enable per-thread regex to avoid lock contention.
+ See:
+ - https://github.com/rsyslog/rsyslog/issues/2759
+ - https://github.com/rsyslog/rsyslog/pull/2786
+ - https://sourceware.org/bugzilla/show_bug.cgi?id=11159
+ This should not affect BSD as they don't seem to take a lock in regexec.
+ NOTE: it is assumed that we can craft an even better solution than
+ this patch, but it improves the situation and we do not have time to
+ craft more. So we decided to merge. For details see
+ https://github.com/rsyslog/rsyslog/pull/2786
+- mmpstrucdata: better error message, support $! in var names
+ see also https://github.com/rsyslog/rsyslog/issues/1262#issuecomment-404773495
+- more explicit error msg with message modification mod on queue
+ Message modification modules do not work if used with a non-direct queue.
+ We now make this more explicit in the config parsing error message.
+ closes https://github.com/rsyslog/rsyslog/issues/1323
+- omrabbitmq: improve high-load performance
+ A different pthread mutex is created for each connection (action)
+ instead of a single one shared by all connections. This will
+ improve performance when using multiple concurrent connections
+ to a single (or multiple) RabbitMQ instance(s) (e.g. for load balancing)
+ Thanks to github user micoq for contributing the patch.
+- imudp: replace select() calls by poll()
+ This improves reliability in extreme cases (more than 1024 fds open when
+ imudp begins to listen) and potentially improves performance a little.
+- ommysql: support mysql unix domain socket:
+ via action(.. socket="/tmp/mysqld.sock" ..)
+ Thanks to JoungKyun Kim for contributing this.
+- impstats: emit warning if log.syslog="off" and ruleset name given
+ With this config, "ruleset" is silently ignored, what probably is
+ not obvious to a user.
+ closes https://github.com/rsyslog/rsyslog/issues/2821
+- build system cleanup: remove no longer needed --enable-memcheck
+ This was used for a very old testing capability, no longer functional but
+ causes build to fail if enabled. Replaced by ASAN/valgrind.
+ Issue detected while testing some other CI settings.
+- tools: Updated python based statslog analyzer sample scripts
+- developer tools: make devcontainer tool more developer friendly
+ slight improvement for easy interactive use
+- enable better testing via "make distcheck"
+ Also a couple of changes to testbench worth mentioning:
+ * use cp -f to ensure files can be overwritten in VBUILD
+ * fix issue of missing include test file in EXTRA_DIST
+ * new suppressions
+ * testbench: try to use local system dependency cache
+ avoid going to Internet repos if not absolutely necessary. For
+ development containers, they should be pre-populated with the
+ important dependencies.
+ * do not enable libfaketime if ASAN is selected
+ unfortunately, libfaketime does not work in that case
+ Note: for modules with non-standard dependencies (e.g. databases),
+ "make distcheck" only enables what on the original ./configure line
+ was enabled. This is done in order to ensure that "distcheck" adapts
+ to what is actually available on the system in question. Rsyslog's
+ own CI system installs the maximum set of possible dependencies and
+ so tries the maximum set "make distcheck" can support on a platform.
+ see also https://github.com/rsyslog/rsyslog/issues/174
+- add new global config parameter "inputs.timeout.shutdown"
+- omusrmsg: do not fall back to max username length of 8
+ This happens if utmp.h and friends are not available and stems back to
+ the original syslogd. Nowadas, 32 is more appropriate and now being used
+ in that (now very unlikely) case. The detection logic for UT_NAMESIZE has
+ also been streamlined.
+ closes https://github.com/rsyslog/rsyslog/issues/2834
+- bugfix build system: fix race in parallel builds
+ If libgcry.la is built later than lmcry_gcry.la, there is a failure:
+ [snip]
+ |../aarch64-wrs-linux-libtool --tag=CC --mode=link aarch64-wrs-linux-gcc
+ -o lmcry_gcry.la lmcry_gcry_la-lmcry_gcry.lo libgcry.la -lgcrypt
+ |aarch64-wrs-linux-libtool: error: cannot find the library 'libgcry.la'
+ or unhandled argument 'libgcry.la'
+ |Makefile:1049: recipe for target 'lmcry_gcry.la' failed
+ |make[2]: *** [lmcry_gcry.la] Error 1
+ [snip]
+ The LIBADD of lmcry_gcry.la contains libgcry.la, we should also add libgcry.la
+ to lmcry_gcry.la's DEPENDENCIES.
+ Thanks to Hongxu Jia for the patch.
+- bugfix imfile: memory leak upon shutdown (cosmetic)
+ When rsyslog shuts down and imfile is inside a change polling loop,
+ it does not properly free memory returned by glob(). This is a cosmetic
+ bug as the process terminates within the next few milliseconds. However,
+ it causes memory analyzer reports and thus makes CI fail.
+- bugfix core msg: potential deadlock (and rsyslog hang)
+ can happen e.g. with headerless messages when app-name
+ property is used
+ closes https://github.com/rsyslog/rsyslog/issues/3135
+- bugfix core: do not abort startup on problems setting scheduling policy
+ rsyslog creates a default scheduling policy on startup. This code
+ invalidly used CHKiRet (our exception handler) to check pthreads
+ return codes, what this macro cannot do. This lead to hard to
+ diagnose startup problems in cases where there were problems
+ setting the scheduling defaults (e.g. when rsyslog is set to run
+ at idle priority). Even more so, this blocked startup altogether,
+ which is not the right thing to do. Actually, this can be considered
+ a regression from commit 7742b21. That commit was 8 years ago, so
+ in general this cannot be a big issues ;-)
+ The code now emits proper error messages (to stderr, as at this point
+ no other output is available as it is during the initial state of
+ rsyslog initialization) and continues the startup.
+ closes https://github.com/rsyslog/rsyslog/issues/2855
+- bugfix core: input shutdown timeout not properly applied
+ The timeout could be reduced by mutex wait time, which was not the
+ intended behavior and could lead the the input thread being
+ cancelled while it would have been perfectly legal to shut it down
+ cleanly.
+ Noticed during working on the CI system. May explain some testbench
+ instability and may have caused trouble with state files (not)
+ properly being written by inputs.
+- bugfix config optimizer: error in constant folding
+ did not work properly if a string and a number were to be folded.
+ Detected by gcc 8.
+- build: fix improper function casts
+ no real issue, but generated warnings under gcc 8 and thus
+ broke CI
+- bugfix omlibdbi: fix potential small memory leak
+ detected by clang static analyzer
+- bugfix ommysql: unsafe use of strncpy()
+ also now reports oversize names as user error vs. silent truncation
+ overly long names only could affect config load phase
+- bugfix omhttpfs: fix insecure usage if strncmp()
+ consequences not evaluated as this is a contributed module.
+ Detected by gcc 8.
+- bugfix mmgrok: cosmetic build issue - compiler warnings
+ caused build under gcc 7 to fail with warning
+- bugfix mmkubernetes: stops working with non-kubernetes container names
+ When mmkubernetes encounters a record with a CONTAINER_NAME field,
+ but the value does not match the rulebase, mmkubernetes returns
+ an error, and mmkubernetes does not do any further processing
+ of any records.
+ The fix is to check the return value of ln_normalize to see if
+ it is a "hard" error or a "does not match" error.
+ This also adds a test for pod names with dots in them.
+ Thanks to Richard Megginson for the patch.
+- bugfix mmkubernetes: potential NULL pointer access
+ If token file could not be opened, fclose() was passed a NULL pointer.
+ Thanks to github user jvymazal for finding and Richard Megginson
+ for fixing the issue.
+- bugfix omsnmp: invalid traptype was not detected
+ this could leave config errors unreported and cause unexpected
+ behavior
+- bugfix mmkubernetes: default rules use container_name_and_id
+ also include rulebase files in dist and fix rule so that dot inside
+ pod name is supported.
+ Thanks to Richard Megginson for fixing the issue.
+- bugfix omelasticsearch: build regression
+ Commit 6d4635efbb13907bf651b1a6e5a545effe84d9d9 introduced some compile
+ problems, which were only detected on CentOS6, which unfortunately did
+ not compile omelasticsearch during CI runs
+- bugfix ommongodb: do not force MongoDB to use "PLAIN" auth mechanism
+ ... which also seems not to be handled by current MongoDB.
+ Remove ?authMechanism=PLAIN URI part to let the mongo library chooses the
+ default mechanism. One can force a specific authentication mechanism by
+ adding ?authMechanism=XXX into the uristr argument of the module
+ Thanks to Jérémie Jourdin for the fix.
+ closes https://github.com/rsyslog/rsyslog/issues/2753
+- build system: do not disable tests via --disable-liblogging-stdlog
+ This setting controlled both the actual rsyslog functionality as well
+ as some testbench tests, which use liblogging-stdlog to provide some
+ specific functionality. This meant those tests were not run since
+ changing the default. Now untangling the dependency.
+- CI:
+ * most test refactored to use newer testbench plumbing
+ while no functional change, this permits further enhancements
+ * ElasticSearch startup timeout in tests increased to care for
+ slower test systems
+ * imjournal: fixed tests to actually test plugin functionality
+ Thanks to Jiri Vymazal for the patch.
+ * new test for gnutls priority string in librelp
+ Thanks to github user jvymazal for the patch
+ * testbench: relax hanging instance detection
+ This does not work reliably if multiple instances of rsyslog
+ builds run on a single machine. We need to improve, but this
+ commit makes conflict less likely and provides some diagnostic
+ info to help guide us towards a final solution.
+ * testbench: fix tests that look awfully wrong
+ These tests indicated they terminate rsyslog forcefully without
+ draining the queues, but then checked if they were drained (all
+ messages processed). That does not make sense, and we cannot
+ envision why this was written the first place. So we assume some
+ copy&paste problem was the root of that.
+ * testbench: refactor tests which used "nettester" tool
+ Some old tests are carried out via the nettester tool. This was
+ our initial shot at a testbench a couple of years ago. While it
+ worked back then, the testbench framework has been much enhanced.
+ These old tests are nowadays very hard to handle, as they miss
+ debug support etc. So it is time to refactor them to new style.
+ As a side-activity, the testbench plumbing has been enhanced to
+ support some operations commonly needed by these tests. Contrary
+ to pre-existing plumbing, these new operations are now crafted
+ using bash functions, which we consider superior to the current
+ method. So this is also the start of converting the older-style
+ functionality into bash functions. We just did this now because
+ it was required and we entangled it into the test refactoring
+ because it was really needed. Else we had to write old-style
+ operations and convert them in another commit, which would
+ have been a waste of time.
+ Special thanks to Pascal Withopf for the initial step of taking
+ old tests and putting config as well as test data together into
+ the refactored tests, on which Rainer Gerhards than could build
+ to create the new tests and update testbench plumbing.
+ * testbench: ensure uxsock test leaves no dangling listener instances
+ ..in case the test aborts. We utilize the timeout utility for now
+ to prevent this.
+ * testbench: make port for imdiag dynamic
+ This is prep work to support parallel test runs
+------------------------------------------------------------------------------
+Version 8.36.0 [v8-stable] 2018-06-26
+- build system change:
+ Liblogging-stdlog was introduced to provide a broader ability to send rsyslog
+ internal logs to different sources. However, most distros did not pick up
+ that capability and so instead we do a regular syslog() call. We assume that
+ the actual functionality is never used in practice, so we plan to retire it.
+ That makes building rsyslog from source easier.
+ The plan is to disable use of liblogging-stdlog by default during
+ configure. So users (and distros!) can still opt-in to have it enabled if
+ they desire.
+ A couple of releases later, we want to completely remove the functionality,
+ except if there has desire been shown in the meantime which justifies to keep
+ liblogging-stdlog.
+ This version disabled liblogging-stdlog by default. We now also
+ emit a warning message ("liblogging-stdlog will go away") so that users
+ know what is going on and my react.
+ closes https://github.com/rsyslog/rsyslog/issues/2705
+ see also https://github.com/rsyslog/rsyslog/issues/2706
+- add openssl driver alongside GnuTLS one for TLS communication
+ The openssl driver is currently experimental. It will become the new preferred
+ driver as it permits us to provide much better end-user error message than
+ we could provide with GnuTLS. It is also less picky with certificate files
+ and provides specific error messages if there are certificate problems.
+ closes: https://github.com/rsyslog/rsyslog/issues/1390
+ closes: https://github.com/rsyslog/rsyslog/issues/1840
+ closes: https://github.com/rsyslog/rsyslog/issues/1352
+ closes: https://github.com/rsyslog/rsyslog/issues/1702
+ closes: https://github.com/rsyslog/rsyslog/issues/2547
+- GnuTLS TLS driver: support intermediate certificates
+ this is necessary for certificate chains
+ Thanks to Arne Nordmark for providing the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/2762
+- omelasticsearch: write op types; bulk rejection retries
+ * Add support for a 'create' write operation type in addition to
+ the default 'index'. Using create allows specifying a unique id
+ for each record, and allows duplicate document detection.
+ * Add support for checking each record returned in a bulk index
+ request response. Allow specifying a ruleset to send each failed
+ record to. Add a local variable `omes` which contains the
+ information in the error response, so that users can control how
+ to handle responses e.g. retry, or send to an error file.
+ * Add support for response stats - count successes, duplicates, and
+ different types of failures.
+ * Add testing for bulk index rejections.
+ Thanks to Richard Megginson for the patch.
+- lookup tables: reload message now with "info" severity (was "error")
+ thanks to Adam Chalkley for the patch
+- imptcp: add support for regex-based framing
+ for complex multi-line messages (XML in particular), the multiLine method
+ does not work well. We now have a capability to specify via a regex when
+ a frame starts (and the previous thus ends).
+ adds imptcp input parameter "framing.delimiter.regex"
+- imjournal: add statistics counter
+ following statistics counter are now supported by imjournal
+ - submitted = total number of messages submitted for processing
+ closes https://github.com/rsyslog/rsyslog/issues/2549
+- config: permit 4-digit file creation modes
+ permit 4-digit file creation modes (actually 5 with the leading zero) so
+ that the setgid bit can also be set (and anything else on that position.
+ closes https://github.com/rsyslog/rsyslog/issues/1092
+- ommongodb: add possibility to ignore some insertion error code
+ new config parameter "allowed_error_codes", which will be ignored if
+ they happen. For example, 11000 DuplicateKey in case of collection
+ containing a unique field.
+ Thanks to Hugo Soszynski for contributing this work
+- omprog: simplify 'plugin-with-feedback.py' example
+ Make the skeleton easier to understand by removing transaction support.
+ Also, transaction failures did not work as explained in the skeleton,
+ because of issue #2420. In the future, a 'plugin-with-transactions.py'
+ example can be added, ideally once the issue is solved.
+ Thanks to Joan Sala for contributing this.
+- core: misaddressing when writing disk queue files
+ when writing disk queue files during shutdown, access to freed
+ memory can occur under these circumstances:
+ - action A is processing data, but could not complete it
+ most importantly, the current in-process batch needs not to
+ be totally completed. Most probable cause for this scenario
+ is a suspended action in retry mode.
+ - action A is called from a ruleset RA which
+ - does not have a queue assigned
+ - where RA is called from a ruleset RO which is bound
+ to the input from which the message originated
+ - RO must be defined before RA inside the expanded config
+ - Disk queues (or the disk part of a DA queue) must be utilized by A
+ When re-injecting the unprocessed messages from A into the disk queue, the
+ name of ruleset RO is accessed (for persisting to disk). However, RO is
+ already destructed at this point in time.
+ The patch changes the shutdown processing of rulesets, so that all
+ shutdown processing is done before any ruleset data is destructed. This
+ ensures that all data items which potentially need to be accessed
+ remain valid as long as some part may potentially try to access them.
+ This follows a the approach used in
+ https://github.com/rsyslog/rsyslog/pull/1857
+ where obviously that part of the problem was not noticed.
+ see also https://github.com/rsyslog/rsyslog/issues/1122
+ closes https://github.com/rsyslog/rsyslog/issues/2742
+- core: fix message loss on target unavailability during shutdown
+ Triggering condition:
+ - action queue in disk mode (or DA)
+ - batch is being processed by failed action in retry mode
+ - rsyslog is shut down without resuming action
+ In these cases messages may be lost by not properly writing them
+ back to the disk queue.
+ closes https://github.com/rsyslog/rsyslog/issues/2760
+- imrelp bugfix: error message "librelp too old" is always emitted ...
+ ... even if librelp is current. The condition check was actually missing.
+ This commit adds it.
+ closes https://github.com/rsyslog/rsyslog/issues/2712
+- imrelp: segfault on startup when cert without priv key is configured
+ closes https://github.com/rsyslog/rsyslog/issues/2747
+- omrelp bugfix: segfault on first message sent when authmode was wrong
+ A segfault could occur if the authmode was configured to an invalid value.
+ This is now caught during config processing and an error is reported.
+ closes https://github.com/rsyslog/rsyslog/issues/2743
+- imfile bugfix: double-free on module shutdown
+ detected by code review, not seen in practice
+- imfile/core bugfix: potential misaddressing in string copy routine
+ This can be exposed via imfile, as follows:
+ - use a regex to process multiline messages
+ - configure timeouts
+ - make sure imfile reads a partial message
+ - wait so that at least one timeout occurs
+ - add the message termination sequence
+ This leads to a misaddressing, which may have no obvious effects potentially
+ up to a segfault.
+ closes https://github.com/rsyslog/rsyslog/issues/2661
+- imfile bugfix: if freshStartTail is set some initial file lines missing
+ When the option is set and a new file is created after rsyslog startup,
+ freshStartTail is also applied to it. That is data written quickly to it
+ (before rsyslog can process it) will potentially be discarded. If so,
+ and how much, depends on the timing between rsyslog and the logging process.
+ This problem is most likely to be seen in polling mode, where a relatively
+ long time may be required for rsyslog to find the new file.
+ This is changed so that now freshStartTail only applies to files that
+ are already-existing during rsyslog's initial processing of the file
+ monitors. HOWEVER, depending on the number and location (network?) of
+ existing files, this initial startup processing may take some time as
+ well. If another process creates a new file at exactly the time of
+ startup processing and writes data to it, rsyslog might detect this
+ file and it's data as prexisting and may skip it. This race is inevitable.
+ So when freshStartTail is used, some risk of data loss exists. The same
+ holds true if between the last shutdown of rsyslog and its restart log
+ file content has been added. This is no rsyslog bug if it occurs.
+ As such, the rsyslog team advises against activating the freshStartTail
+ option.
+ closes https://github.com/rsyslog/rsyslog/issues/2464
+- core: fix undefined behavior (unsigned computation may lead to value < 0)
+ This was detected by LLVM UBSAN. On some platforms re-setting the rawmsg
+ inside the message object could lead to invalid computation due to the
+ fact the the computation was carried out as unsigned and only then
+ converted to integer.
+ No known problem in practice.
+- CI/QA:
+ - improved Elasticsearch tests so they can now be run without system-
+ installed ES service; also enables us to specify specific ES versions
+ and should now make the tests executable inside a container
+------------------------------------------------------------------------------
+Version 8.35.0 [v8-stable] 2018-05-15
+- imptcp: add ability to configure socket backlog
+ this can be useful under heavy load.
+ For a detailed discussion see https://github.com/rsyslog/rsyslog/pull/2561
+ Thanks to Maxime Graff for implementing this.
+- omfile: do not permit filename that only consists of whitespace
+- fmhash: new hash function module
+ implements hash32() and hash64() functions
+ Thanks to Harshvardhan Shrivastava for implementing these
+- some better error messages
+- imklog: add ratelimiting capability
+ On Linux kernel logs are ratelimited only for messages using
+ printk_ratelimit(). Some logs do not use this facility, so
+ we ratelimit kernel ourselves.
+ Thanks to Berend De Schouwer for the patch.
+- omkafka: added impstats counters for librdkafka returned statistics
+ Adds:
+ * statscallback counters
+ * librdkafka failure and error counters
+ * acked message counter
+ Thanks to Abdul Waheed for implementing this.
+- imudp
+ * use rsyslog message rate-limiter instead of home-grown one
+ imudp introduced it's own (feature-limited) rate-limiting capability for
+ message on disallowed senders before we had central rate-limiters
+ inside rsyslog. Also, that code evolved from running on a single
+ thread to running on multiple threads, which introduced data races
+ and so made unreliable.
+ Now we removed the old rate-limiting capability and depend on the
+ system rate limiter for internal rsyslog messages.
+ closes https://github.com/rsyslog/rsyslog/issues/2467
+ * add stats counter "disallowed"
+ counts the number of messages discarded due to being received from
+ disallowed senders
+ see also https://github.com/rsyslog/rsyslog/issues/2467
+- imrelp: add parameter "oversizeMode"
+ Permits to instruct librelp how to handle oversize messages. The new default
+ is to truncate messages. Previously, the connection was aborted, what often
+ lead to stuck messages at the sender side. Now, there are three options passed
+ down to librelp:
+ * abort - same behavior as previously, connection is aborted on error
+ * truncate - do not abort but instead truncate oversize message to
+ configured max size
+ * accept - accept all oversize messages (note: this can cause security issues,
+ see doc for details)
+ see also https://github.com/rsyslog/rsyslog/pull/1525#issuecomment-384179393
+ see also https://github.com/rsyslog/rsyslog/issues/2190
+ closes https://github.com/rsyslog/rsyslog/issues/2633
+ closes https://github.com/rsyslog/rsyslog/issues/1741
+ closes https://github.com/rsyslog/rsyslog/issues/1782
+ closes https://github.com/rsyslog/rsyslog/issues/2496
+- core: consistent handling of oversize input messages
+ In the community we frequently discuss handling of oversize messages.
+ David Lang rightfully suggested to create a central capability inside
+ rsyslog core to handle them.
+ We need to make a distinction between input and output messages. Also,
+ input messages frequently need to have some size restrictions done at
+ a lower layer (e.g. protocol layer) for security reasons. Nevertheless,
+ we should have a central capability
+ * for cases where it need not be handled at a lower level
+ * as a safeguard when a module invalidly emits it (imfile is an example,
+ see https://github.com/rsyslog/rsyslog/pull/2632 for a try to fix it
+ on the module level - we will replace that with the new capability
+ described here).
+ The central capability works on message submission, and so cannot be
+ circumvented. It has these capabilities:
+ * oversize message handling modes:
+ - truncate message
+ - split message
+ this is of questionable use, but also often requested. In that mode,
+ the oversize message content is split into multiple messages. Usually,
+ this ends up with message segments where all but the first is lost
+ anyhow as the regular filter rules do not match the other fragments.
+ As it is requested, we still implemented it.
+ - accept message as is, even if oversize
+ This may be required for some cases. Most importantly, it makes
+ quite some sense when writing messages to file, where oversize
+ does not matter (accept from a DoS PoV).
+ * report message to a special "oversize message log file" (not via the
+ regular engine, as that would obviously cause another oversize message)
+ This commit, as the title says, handles oversize INPUT messages.
+ see also https://github.com/rsyslog/rsyslog/issues/2190
+ closes https://github.com/rsyslog/rsyslog/issues/2681
+ closes https://github.com/rsyslog/rsyslog/issues/498
+ Note: this commit adds global parameters:
+ * "oversizemsg.errorfile",
+ is used to specify the location of the oversize message log file.
+ * "oversizemsg.report",
+ is used to control if an error shall be reported when an oversize
+ message is seen. The default it "on".
+ * add global parameter "oversizemsg.input.mode"
+ is used to specify the mode with which oversized messages will
+ be handled.
+- omfwd: add support for bind-to-address for UDP
+ To allow the same source address to be used regardless of the egress
+ interface taken, an option is added for an address to bind the datagram
+ socket to. Similarly to imudp, it is necessary to add an ipfreebind
+ option which is set by default, so as to avoid an excess of errors at
+ startup before the network interface has come up. This enhancement
+ allows a usecase on networking devices, by which a source interface
+ that is typically a loopback is specified, on which an address to bind
+ to is configured. This is so that the same source address is used for
+ all packets from rsyslog.
+ Thanks to Mike Manning for the patch.
+- template systemd service file proposes higher permitted file handle limit
+ Especially on busy systems the default are too low. Please keep in mind
+ that on a very busy system even the now-proposed setting may be too low.
+ Thanks to github user jvymazal for the patch.
+- imuxsock: replace select() call by poll()
+ While extremely unlikely, imuxsock could abort if a file descriptor
+ > 1024 was received during the startup phase (never occurred in
+ practice, but theoretically could if imfile monitored a large number
+ of files and were loaded before imuxsock - and maybe other
+ strange cases).
+ see also https://github.com/rsyslog/rsyslog/issues/2615
+- nsdsel_ptcp: replace select() by poll()
+ This removes us of problems with fds > 1024. The performance will
+ probably also increase in most cases.
+ Note this is not a replacement for the epoll drivers, but a general
+ stability improvement when epoll() is not available for some reason.
+ see also https://github.com/rsyslog/rsyslog/issues/2615
+ closes https://github.com/rsyslog/rsyslog/issues/1728
+ closes https://github.com/rsyslog/rsyslog/issues/1459
+- omprog: refactor tests, fix child closing issues
+ Refactor omprog tests. Fix sync issues in these tests by
+ using the feedback mode (confirmMessages=on) to synchronize
+ the test with the external program. Closes #2403 (I hope)
+ Fix omprog not properly closing child process when
+ signalOnClose=on. Needed for the new tests. Closes #2599
+ Fix omprog not waiting for the child process to terminate
+ when signalOnClose=off. Needed for the new tests. Closes #2600
+ Close all fds before executing the child even when valgrind
+ is enabled (--enable-valgrind). Needed for the new tests.
+ Fix memory leak when the xxxTransactionMark parameters were
+ used.
+ Thanks to Joan Sala for the patch.
+- core: config optimizer did not handle call_indirect
+ This also caused the emission of an "internal error" error message
+ closes https://github.com/rsyslog/rsyslog/issues/2665
+- debug support: add capability to print testbench-specific timeout reports
+ done by setting RSYSLOG_DEBUG_TIMEOUTS_TO_STDERR to "on"
+ this is by default activated inside the testbench
+- mmgrok: fix potential segfault
+ The modules used strtok(), which is not thread-safe. So it will potentially
+ segfault when multiple instances are spawned (what e.g. happens on busy
+ systems).
+ This patch replaces strtok() with its thread-safe counterpart
+ strtok_r().
+ see also https://github.com/rsyslog/rsyslog/issues/1359
+- imrelp bugfix: maxDataSize could be set lower than maxMessageSize
+ maxDataSize specifies the length which will still be accepted
+ It previously could be set to any value, including values lower than the
+ configured rsyslog max message size, which makes no sense. Now this is
+ checked an error message is emitted if the size is set too low.
+- build system bugfix: build broken if liblogging-stdlog installed in custom path
+ Thanks to Dirk Hörner for the patch.
+- core bugfix: segfault on queue shutdown
+ if a ruleset queue is in direct mode, a segfault can occur during
+ rsyslog shutdown. The root cause is that a direct queue does not
+ have an associated worker thread pool, but the ruleset destructor
+ does not anticipate that and tries to destruct the worker thread
+ pool. It needs to do this itself, as otherwise we get a race
+ between rulesets on shutdown.
+ This was a regression from
+ https://github.com/rsyslog/rsyslog/commit/3fbd901b3e6300010
+ closes https://github.com/rsyslog/rsyslog/issues/2480
+- imfile bugfix: statefiles contain invalid JSON
+ When imfile rewrites state files, it does not truncate previous
+ content. If the new content is smaller than the existing one, the
+ existing part will not be overwritten, resulting in invalid json.
+ That in turn can lead to some other failures.
+ closes https://github.com/rsyslog/rsyslog/issues/2662
+- omfile bugfix: segfault if empty filename was given
+ closes https://github.com/rsyslog/rsyslog/issues/2417
+- fix build issues when atomic operations are not present
+ for details, see https://github.com/rsyslog/rsyslog/pull/2604
+- lmsig_ksils12 bugfix: build and static analyzer issues
+ The module had a couple of problems building as well as some potential
+ errors detected by clang static analyzer. These have been fixed.
+ Thanks to Allan Park for the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/2517
+- impstats bugfix: segfault if bound to non-existing ruleset
+ segfault happens during shutdown; up until unload of impstats,
+ rsyslog works correctly, except that no pstats are emitted. This
+ can be considered to be expected, because the error message
+ indicates the default ruleset is used instead. This is what
+ now actually happens.
+ closes https://github.com/rsyslog/rsyslog/issues/2645
+- mmjsonparse bugfix: invalid container name was not detected
+ in debug builds, this will trigger an assertion. In production
+ builds, an rsyslog internal error is logged, but rsyslog
+ continues to run.
+ closes https://github.com/rsyslog/rsyslog/issues/2584
+- mmkubernetes bugfixes: fix lnrules, add defaults, add test
+ - Fix lnrules for CONTAINER_NAME
+ - Add pkg check for lognorm >= 2.0.3 so we can set the macro
+ to enable ln_loadSamplesFromString
+ - Add some reasonable default values for parameters, such as
+ kubernetesurl https://kubernetes.default.svc.cluster.local:443
+ - Clean up sample.conf configuration file
+ Thanks to Richard Megginson for the patch set.
+- build system bugfix: --enable-atomic-operations did not work
+ closes https://github.com/rsyslog/rsyslog/pull/2604
+- bugfix: rsyslog aborts on startup when specific config errors are made
+ The following errors must be made in rsyslog.conf:
+ * no action present
+ * a call statement is used on an undefined ruleset
+ In this case, rsyslog emits an error message on the missing actions and
+ then segfaults. Depending on memory layout, it may also continue to run
+ but do nothing except accepting messages as no action is configured.
+ This patch make rsyslog properly terminate after the error message. It
+ is a change in behavior, but there really is no reason why a defunct
+ instance should be kept running.
+ closes https://github.com/rsyslog/rsyslog/issues/2399
+- build system: remove no longer needed --enable-libcurl configure switch
+ The --enable-libcurl switch was added to be able to disable libcurl
+ functionality inside the rsyslog core, see 46f4f43. As libcurl is no
+ longer used inside the core (due to introducing function modules),
+ --enable-libcurl needs to be removed.
+ closes https://github.com/rsyslog/rsyslog/issues/2628
+- QA/CI
+ * fixed races in some tests; root cause was that default enq timeout was too
+ low - we may also see in the future that other tests also need adjustment
+ (note that this is not a code problem but rather slow CI environments,
+ so increasing the timeout to get to a stable test state is the absolutely
+ correct thing to do)
+ * enabled some additional useful compiler warnings
+ * new test for diskqueue hitting configured disk space limit
+ * new tests for omfile
+ * added tests for mmkubernetes
+ * added tests for some script functions that were missing them
+ * made far more test compatible with FreeBSD, so that we now have fuller
+ coverage there
+------------------------------------------------------------------------------
+Version 8.34.0 [v8-stable] 2018-04-03
+- mmkubernetes: new module
+ Thanks to Richard Megginson and Peter Portante for contributing the module.
+- rsyslog script: introduce loadable function modules
+ rsyslog scripting can now also be extended via loadable modules - they
+ provides functions (just like loadable input, output, ... modules)
+ see also http://jan.gerhards.net/2018/03/loadable-rainerscript-functions.html
+- imfile: large refactoring of complete module
+ This commit greatly refactors imfile internal workings. It changes the
+ handling of inotify, FEN, and polling modes. Mostly unchanged is the
+ processing of the way a file is read and state files are kept.
+ This is about a 50% rewrite of the module.
+ Polling, inotify, and FEN modes now use greatly unified code. Some
+ differences still exists and may be changed with further commits. The
+ internal handling of wildcards and file detection has been completely
+ re-written from scratch. For example, previously when multi-level
+ wildcards were used these were not reliably detected. The code also
+ now provides much of the same functionality in all modes, most importantly
+ wildcards are now also supported in polling mode.
+ The refactoring sets ground for further enhancements and smaller
+ refactorings. This commit provides the same feature set that imfile
+ had previously and all existing CI tests pass, as do some newly
+ created tests.
+ Some specific changes:
+ - bugfix: module parameter "sortfiles" ignored
+ This parameter only works in Solaris FEN mode, but is otherwise
+ ignored. Most importantly it is ignored under Linux.
+ fixes https://github.com/rsyslog/rsyslog/issues/2528
+ - bugfix: imfile did not pick up all files when not present
+ at startup
+ fixes https://github.com/rsyslog/rsyslog/issues/2241
+ fixes https://github.com/rsyslog/rsyslog/issues/2230
+ fixes https://github.com/rsyslog/rsyslog/issues/2354
+ fixes https://github.com/rsyslog/rsyslog/issues/1716
+ - bugfix: directories only support "*" wildcard, no others
+ fixes https://github.com/rsyslog/rsyslog/issues/2303
+ - bugfix: parameter "sortfiles" did only work in FEN mode
+ fixes https://github.com/rsyslog/rsyslog/issues/2528
+ - provides the ability to dynamically add and remove files via
+ multi-level wildcards
+ see also https://github.com/rsyslog/rsyslog/issues/1280
+ - the state file name currently has been changed to inode number
+ This will further be worked on in upcoming PRs
+ see also https://github.com/rsyslog/rsyslog/issues/2231
+ - some enhancements were also done to CI tests, most importantly
+ they were made more compatible with BSD
+ Note that most of the mentioned bug fixes cannot be applied to older
+ versions, as they fix design issues which are solved by the refactoring.
+ Thus there are not separate commits for them.
+ There are probably also a number of different issues fixed, which have
+ not yet been full confirmed. Especially anyone having troubles with imfile
+ and wildcards will benefit from the refactoring.
+ closes https://github.com/rsyslog/rsyslog/issues/2359
+- omelasticsearch: add support for CA cert, client cert auth
+ This allows omelasticsearch to perform client cert based authentication
+ to Elasticsearch.
+ adds parameters: tls.cacert, tls.mycert, tls.myprivkey
+ Thanks to Richard Megginson for the patch.
+- omfile-hardening: new contributed module for "omfile hardened operations"
+ This extends omfile with features considered useful for hardening. Comes
+ at the expense of performance loss and changed semantics.
+ Thanks to Mikko Kortelainen for contributing this work.
+- stream/bugfix: memory leak on stream open if filename as already generated
+ this can happen if imfile reads a state file. On each open, memory for the
+ file name can be lost.
+ We detected this while working on imfile refactoring, so there is no related
+ bug report. No specific test has been crafted, as the refactored imfile
+ tests catch it (as soon as they are merged).
+- bugfix/omkafka: did not build on platforms without atomic operations
+ Thanks to github user bruce87en for the patch
+- bugfix/core/ratelimiting: SystemLogRateLimitBurst was limited to 65535
+ rsyslog uses unsigned short for configuration setting SystemLogRateLimitBurst.
+ Being just 16 bits, unsigned short cannot hold values bigger than 65535. in a
+ practical setting rsyslog misbehaved with SystemLogRateLimitBurst being bigger
+ than 65535.
+ Thanks to github user KaleviKolttonen for the patch.
+- bugfix imfile: memory leak in readMode 0
+ closes https://github.com/rsyslog/rsyslog/issues/2421
+- bugfix omfile: some error messages had parameters in wrong order
+ which made the message look strange, but still readable
+ Thanks to Hans Rakers for the patch.
+- bugfix omprog: file handle leak
+ There was a fd leak in the feedback feature added in v8.31.0 (github PR #1753).
+ The leak occurred when omprog was used with the confirmMessages=on setting
+ and no output setting. One fd was leaked every time the external program was
+ started.
+ Thanks to Joan Sala for the patch.
+- bugfix imuxsock: data alignment problems
+ gcc did rightly complain that the cred and ts pointers would cause
+ alignment problems, so they were converted to structs and the necessary
+ data was memcpy()'ed to them.
+ the aux[] buffer was also potentially misaligned, so making a union
+ out of it and struct cmsghdr insured it was properly aligned.
+ The problems were especially visible on alpha and ia64 machines.
+ Thanks to Jason Duerstock for the fix.
+- bugfix testbench: some test were accidentally not executed
+ Thanks to Kasumi Hanazuki for the patch.
+- bugfix tcp subsystem: keepalive settings mixed up
+ TCPKeepAliveIntvl and TPCKeepAliveTime were switched. This is now correct and
+ thus causes a CHANGE OF BeHAVIOR of these settings. We applied this change only
+ after careful consideration of the effect. The contributor Alexandre Pierret
+ explained the situation as such:
+ "From my side, I work with thousands of servers centralizing logs to rsyslog
+ servers in tcp. All of them are running RHEL 6 and 7. The default rsyslog settings
+ in RHEL is TCPKeepAlive off. Since there are thousands of connections on the
+ rsyslog servers, I had to turn the TCPKeepAlive on to setup an aggressive policy
+ regarding ghost connections (following firewall tcp-timeout issue). Basically,
+ I set up: intvl=10 - probe=5 - time=2 If intvl and time are switched, it won't
+ break anything. It will just send 5 more empty tcp packets for 10 seconds (5
+ probe x 2 seconds), which is painless (any professional grade 100€ router can
+ send more than 1.000.000 PPS). For 3000 servers, it means 3000 pps for 5
+ seconds (3000 servers x 2 back-and-forth / 2 seconds). Let's take another worst
+ example: intvl=3600 - probe=5 - time=1. It means one keepalive every hour and
+ a 5 retry every 1s after a network issue. If the time and intvl values are
+ switched, it will generate 1 keepalive every seconds, It's a LOT more, but
+ after 5 probe or packet, it will stop. To summarize, I think it won't
+ break anything:
+ * Keepalive is off by default is many linux distribution
+ * When we enable it, it's to set up an aggressive policy. And setting up a
+ 10-5-1, 60-5-2, 2-5-60 or 1-20-1 policy is almost the same.
+ Bonus: For people setting up their rsyslog from the documentation, it will
+ now work as expected."
+ This was convincing, and we actually think that the fast majority of users set
+ up keepalive based on the doc and did never verify it actually worked as
+ expected. So we think that in all those cases, rsyslog will finally work as
+ intended. So we consider it justified to "change the behavior" here.
+ full discussion in PR: https://github.com/rsyslog/rsyslog/pull/2367
+ Thanks to Alexandre Pierret for analyzing the situation and providing the
+ patch.
+- fix some cosmetic issues found by lgtm.com static code analyzer
+ e.g. header file guard not correctly set - if you really are interested in
+ details, check git log
+- CI
+ * add build test without atomic operations - now catches missing mutex macros
+ * add lgtm.com static analyzer (automatically called via GitHub PR)
+ * improved stability of global-umask.sh test, which unnecessarily used
+ wildcards for test output file checking.
+ Thanks to Kasumi Hanazuki for the patch.
+ * added some test for omprog with transactional interface
+ Thanks to Joan Sala for the new tests.
+ * fixed some omjournal tests which did not properly check result
+------------------------------------------------------------------------------
+Version 8.33.1 [v8-stable] 2018-03-06
+- 8.33.0 tarball release was actually pre-8.33.0
+ ... and so did not contain all features. This alone made a re-release
+ necessary, which is what now happens with 8.33.1.
+ Note: the git 8.33.0 label was correctly applied, "just" the tarball
+ was wrong.
+- devcontainer: use some more sensible defaults
+ and add ability to specify generic docker run options
+ this makes integration into CI (and other scripting) easier
+- fix problems with make dist
+ make dist did not package everything that was needed for CI, thus
+ resulting in make check failures if build from tarball.
+ Thanks to Thomas D. (whissi), and Michael Biebl for alerting us on the
+ problem, providing advise and some of the patches. We also added addt'l
+ patches ourselves. The problem occurred as the CI check for tarball
+ completeness was more or less disabled a couple of weeks ago, which
+ unfortunately went unnoticed. We have also applied some more safeguards
+ to detect such problems in the future.
+------------------------------------------------------------------------------
+Version 8.33.0 [v8-stable] 2018-02-20
+- auto-detect if running inside a container (as pid 1)
+ adjust defaults in this case to be more container-friendly
+- config: add include() script object
+ This permits to include files (like legacy $IncludeConfig) via a
+ script object. Needless to say, the script object offers more
+ features:
+ - include files can now be
+ - required, with rsyslog aborting when not present
+ - required, with rsyslog emitting an error message but otherwise
+ continuing when not present
+ - optional, which means non-present include files will be
+ skipped without notice
+ This is controlled by the "mode" parameter.
+ - text can be included form e.g. an environment variable
+ --> ex: include(text=`echo $ENVVAR`)
+ This finally really obsoletes $IncludeConfig.
+ closes https://github.com/rsyslog/rsyslog/issues/2151
+- template: add option to generate json "container"
+ This enables easy JSON generation via template.
+ This commit also corrects an issue with the constant "jsonf"
+ format. That was recently added, and the implementation problem
+ only became visible when used inside a larger json object. No
+ officially released code is affected, thought - so it really
+ is just a side-note.
+ closes https://github.com/rsyslog/rsyslog/issues/2347
+- core/template: add format jsonf to constant template entries
+ closes https://github.com/rsyslog/rsyslog/issues/2348
+- config: add ability to disable config parameter ("config.enabled")
+ For auto-generated configs, it is useful to have the ability to disable some
+ config constructs even though they may be specified inside the config. This
+ can now be done via the ```config.enabled``` parameter, applicable to all
+ script objects. If set to ```on``` or not specified, the construct will be
+ used, if set to any other value, it will be ignored. This can be used
+ together with the backtick functionality to configure enable and disable
+ from either a file or environment variable.
+ closes https://github.com/rsyslog/rsyslog/issues/2431
+- script: permit to use environment variables during configuration
+ new constant string type "backticks", inspired by sh
+ (sample: `echo $VARNAME`).
+- new global config parameter "shutdown.enable.ctlc"
+ permits to shutdown rsyslog via ctl-c; useful e.g. in containers
+- config optimizer: detect totally empty "if" statements and optimize
+ them out
+- template: constant entry can now also be formatted as json field
+ This enhancements permits to craft clean templates that generate JSON,
+ e.g. for ElasticSearch consumption (or any other REST API)
+- omstdout: support for new-style configuration parameters added
+- core: set TZ on startup if not already set
+ In theory, TZ should be set by the OS. Unfortunately, this seems
+ to be not the case any longer on many Linux distros. We now check
+ it and set it appropriate if not already given.
+ Thanks to github user JPvRiel for providing an excellent explanation
+ of the reasoning for this and how to work around it.
+ closes https://github.com/rsyslog/rsyslog/issues/2054
+- imjournal bugfix: file handle leak during journal rotation
+ Thanks to Peter Portante for the patch
+ see also: https://github.com/rsyslog/rsyslog/pull/2437
+- lmsig_ksils12 bugfix: dirOwner and dirGroup config was not respected
+- script bugfix: replace() function worked incorrectly in some cases
+ If the end of the message was similar to the replacement string, parts
+ of the string could (not always) be missing.
+ Thanks to Yaroslav Bo for the patch.
+- build system bugfix: --disable-libcurl did not work
+ Thanks to Dan Molik, Thomas D. (whissi), and Michael Biebl for the patches.
+- fixed build issues on Alpine Linux
+- core bugfix: misaddressing in external command parser
+ This parser is used whenever a module (e.g. omprog) needs to process
+ command lines. If command parameters were given, memory misaddressing
+ occurred. This could lead to a segfault.
+ This is a regression in 8.32.0.
+ closes https://github.com/rsyslog/rsyslog/issues/2408
+- core bugfix: small memory leak in external command parser
+ This parser is used whenever a module (e.g. omprog) needs to process
+ command lines. On each action definitions for actions that use the
+ parser a small amount of memory was leaked. It is an uncritical leak
+ as it only occurs during config parsing. So it leaks a couple of
+ KiB during startup but does not grow during actual message processing.
+ This is a regression in 8.32.0.
+- core bugfix: string not properly terminated when RFC5424 MSGID is used
+ This could lead to misaddressing when the jsonmesg property was used.
+ closes https://github.com/rsyslog/rsyslog/issues/2396
+- bugfix: strndup() compatibility layer func copies too much
+ The function did not obey the upper limit, effectively becoming
+ a strdup(). This was only noticed when the compatibility layer
+ was required, most importantly on Solaris 10.
+- CI system
+ - we now use well-defined containers for parts of the CI runs
+ - now also build test under Alpine Linux
+ - test added for omprog feedback feature
+------------------------------------------------------------------------------
+Version 8.32.0 [v8-stable] 2018-01-09
+- NEW BUILD REQUIREMENTs:
+ * libfastjson 0.99.8 is now required; older versions lead to bugs in rsyslog
+ * libczmq >= 3.0.2 is now required for omczmq
+ This was actually required for quite some while, but not properly checked
+ during configure run. If the lib was older, build failed. Now configure
+ detects this and emits the appropriate error message.
+ * libcurl is now needed for rsyslog core
+ due to new script function http_request(). This can be turned off by the
+ new configure option --disable-libcurl. If so, http_request() is not
+ available.
+- rsyslogd: add capability to specify that no pid file shall be written
+ Command line option -iNONE provides this capability. This utilizes the
+ pre-existing -i option, but uses the special name "NONE" to turn of the
+ pid file check feature. Turning off is useful for systems where this no
+ longer is needed (e.g. systemd based).
+ closes https://github.com/rsyslog/rsyslog/issues/2143
+- ompgsql: considerable enhancements
+ The PostgreSQL output module was woefully out-of-date the following
+ list is changes made to update the module to current Rsyslog standards.
+ * allow for v6 configuration syntax
+ * configurable ports
+ * support transactional interface
+ * push db connection into workers (libpq is threadsafe)
+ * enable module testing on travis
+ * ensure configuration syntax backwards compatibility
+ * formatting around postgres core templating
+ * use new test conventions
+ * add new configuration syntax test
+ * add valgrind tests for new and old syntax
+ * add threading tests
+ * add action queue long running tests
+ * add action queue valgrind test
+ Thanks to Dan Molik for contributing this great enhancement!
+- build system: removed --enable-rtinst configure option
+ This was a historic debugging option which has been superseded by
+ newer tools like valgrind, helgrind, ASAN, TSAN, etc...
+- pmrfc3164: support for headerless messages
+ pmrfc3164 now detects if the first non-SP, non-HT character is either
+ '{' or '[' and if so assume that no header (TAG, HOSTNAME, DATE) is
+ given. If so, it uses defaults for these values. The full message is
+ used as the MSG part in that case. Note that an initial PRI may still
+ be specified.
+ This follows the trend to send JSON messages via syslog without any
+ header. We use default header values in this case.
+ This right now is a bit experimental; we may roll it back if
+ problems show up in practice.
+ closes https://github.com/rsyslog/rsyslog/issues/2030
+- omhiredis: add option to use RPUSH instead of LPUSH
+ see also https://github.com/rsyslog/rsyslog/issues/1625
+- mmexternal improvements
+ * better error reporting if to-be-executed script cannot be executed
+ * some general cleanup
+ * better redirection of stdin/out/err for the executed script
+ * bugfix: argv[0] of the script was missing if command line parameters
+ were not specified
+- omprog: refactored, code shared with mmexternal moved to common object
+- logctl tool: refactor to support newer rsyslog standards
+ * Made the logctl usertool ISO C90 compliant.
+ * Made the logctl usertool use a homogeneous coding style.
+ Thanks to Hugo Soszynski for contributing this work (as well as
+ suggesting some workarounds related to libmongoc/libbson).
+- imfile: added support for Solaris File Event notification (FEN)
+ also improves performance under Solaris, with FEN imfile provides
+ features equivalent to inotify mode
+- core/action: new parameter "action.errorfile"
+ permits to write failed messages to an "error file" so that they
+ can be reviewed and potentially be reprocessed
+- imfile: added new module parameter "sortFiles"
+ This permits to process newly created files in sorted order.
+- imuxsock: improved status reporting: socket name received from systemd
+ Providing an indication of what we got from systemd facilitates problem
+ analysis.
+- build system: added new testbench configure switches
+ now --enable-testbench1 and --enable-testbench2 exists which permit
+ to enable/disable parts of the testbench. By default, both are on
+ when --enable-testbench is given. For full testbench coverage, both
+ options must be given. These options are necessary because under
+ Travis we hit the max runtime for tests and needed to split tests
+ over multiple incarnations.
+- mmpstrucdata: new parameter "sd_name.lowercase"
+ to permit preserving case for structured data identifiers
+ Special thanks to github user alanrobson for the initial commit that
+ preserves case (on which we based other work).
+- omfile: add module-global option "dynafile.donotsuspend"
+ this permits to enable SUSPENDing dynafile actions. Traditionally,
+ SUSPEND mode was never entered for dynafiles as it would have blocked
+ overall processing flow. Default is not to suspend (and thus block).
+ closes https://github.com/rsyslog/rsyslog/issues/2236
+- testbench: add a capability to turn off libfaketime tests via configure
+ Unfortunately, libfaketime becomes more and more problematic in newer
+ versions and causes aborts on some platforms. This provides the ability
+ to turn it off via --disable-libfaketime.
+ In the longer term, we should consider writing our own replacement.
+- testbench: name valgrind tests consistently
+ all valgrind tests now end in -vg.sh
+- RainerScript: add function parse_json()
+- RainerScript: add function substring()
+- RainerScript: add function http_request()
+- RainerScript: add function previous_is_suspended()
+ This function returns a boolean indicating if the previous action is
+ suspended (0 - no, 1 - yes). This is useful if arbitrary processing
+ (other than calling actions) should be made depending on that state.
+ A prime example for this is probably calling a ruleset.
+ closes https://github.com/rsyslog/rsyslog/issues/1939
+- Patches from BSD projects have been imported
+ ... as far as they still apply. Some patches that patched BSD-specific
+ code were broadened to be more generic.
+- script bugfix: invalid function names were silently ignored
+ no error message was produced
+ thanks to Matt Ezell for providing the patch.
+- rainerscript: add int2hex() function
+- rainerscript: add is_time() function
+ Thanks to Stephen Workman for implementing this.
+- RainerScript: add function script_error() and error-reporting support
+ This permits script functions that could fail to report errors back, so
+ that the user can handle them if desired. We use an errno-style of
+ interface. That means script_error() needs to be called after functions
+ that supports it. It will return either 0 (all OK) or something else
+ (an error condition).
+ The commit also modifies the parse_time() function to use the new
+ interface. First of all, this is useful for users, and secondly we
+ needed a capability to craft a testbench test.
+ closes https://github.com/rsyslog/rsyslog/issues/1978
+- testbench: fixed build problem of testbench tools under Alpine Linux
+- added --enable-libsystemd configure option to enforce use of libsystemd
+ so we can fail the build on platforms where this is required
+- core/glbl: remove long-unused option $optimizeforuniprocessor
+ This was still available, but had no effect (for ~10 years or so). The
+ plumbing is now removed. If someone tries to use the option, an
+ error message is generated.
+ closes https://github.com/rsyslog/rsyslog/issues/2280
+- core/queue: emit better status messages at rsyslog shutdown
+ this helps to diagnose issue - unfortunately we need more work to ensure
+ that the messages always make it to the user. This is a start and
+ hopefully useful at least for the testbench, possibly more.
+- fixed a couple of build issues with gcc-7 (in less frequently used modules)
+- fixed a couple of build issues on the arm platform (actually raspbian)
+- impstats: fix invalid counter definitions for getrusage() reporting
+ some of the counters were defined as int (32 bit) vs. intctr_t (64 bit).
+ On some platforms "long" seems to be 64bit, and getrusage() provides
+ what we store as int via long. So this caused truncation and/or overflow.
+ This had undefined effects. Most often, everything worked fine
+ for values smaller than 2^31 but sometimes we got negative values.
+ closes https://github.com/rsyslog/rsyslog/issues/1517
+- imudp bugfix: potential segfault in ratelimiting
+ The rate-limiter inside imudp was not set to be thread safe, but was
+ used across multiple threads. This worked in default configuration,
+ but failed when RepeatedMsgReduction was set to "on".
+ Note that it in general is a bug to use a rate-limiter in
+ non-threadsafe mode across multiple threads. This also causes invalid
+ rate limiting counts in the default case.
+ closes https://github.com/rsyslog/rsyslog/issues/441
+ fixes https://github.com/rsyslog/rsyslog/issues/2132
+- imptcp bugfix: access to free'ed memory
+ When notifyconnectionclose was on, a string buffer was accessed immediately
+ after it was freed (as part of the connection close operation).
+ Detected by LLVM ASAN.
+- mmanon bugfix: fix wrong ipv6 embedded recognition
+ mmanon recognized IPv6 with embedded IPv4 that have too few (16 bit) fields.
+ example: 13:abd:45:0.0.0.0
+ closes https://github.com/rsyslog/rsyslog/issues/2357
+- imfile bugfix: not detecting files in directory when wildcards are used.
+ When directories and files are created at the same time,
+ imfile may missed subdirs or file if the machine is on high load.
+ The handling has been enhanced to scan newly created directories ALWAYS for
+ matching files.
+ fixes https://github.com/rsyslog/rsyslog/issues/2271
+ However there still exist problems with multilevel directory configurations.
+ Details are discussed in https://github.com/rsyslog/rsyslog/issues/2354
+ Fixes for the remaining issues are expected for 8.33.0.
+- script bugfix: improper string-to-number conversion for negative numbers
+- core/action bugfix: 100% CPU utilization on suspension of output module
+ Triggering condition:
+ * output module using the legacy transaction interface
+ (e.g. omelasticsearch, omlibdbi)
+ * output module needs to suspend itself
+ In these cases, rsyslog enters a busy loop trying to resolve the
+ suspend condition. The bug is rooted in rsyslog core action code.
+ This patch fixes it by inserting a 1-second sleep during calls
+ to the resume handler.
+ Note: we cannot sleep exactly as long as tryResume needs. This
+ would require larger refactoring, which probably is not worth for
+ the legacy interface. The current solution is almost as good, as
+ the one second sleep has very little overhead on a real system.
+ Thus we have chosen that approach.
+ This patch now also ensures that failed messages are properly
+ handled and do not cause eternal hang.
+ closes https://github.com/rsyslog/rsyslog/issues/2113
+- core/variables bugfix: bare $! cannot be used in set statement
+ fixes https://github.com/rsyslog/rsyslog/issues/326
+- core bugfix: auto commit of actions improperly handled
+ The internal state variable bHadAutoCommit was handled in thread-unsafe way
+ and most probably caused (hard to see) issues when action instances were
+ run on multiple worker threads. It looks like the state variable was
+ forgotten to move over to worker state when action workers were introduced.
+ closes https://github.com/rsyslog/rsyslog/issues/2046
+- core bugfix: filename length limitation of 199 bytes
+ file names (including path names) longer than 199 bytes could not be
+ handled at many places. This has now been uplifted to 4KiB after careful
+ review for the largest size supported among all relevant platforms.
+- core bugfix: undefined behavior due to integer overflow
+ when searching strings, we may have an (unsigned) integer overflow
+ which can lead to misaddressing.
+ Detected by clang ubsan.
+- core bugfix: race on LocalHostIP property during startup
+ The way the default was set could lead to a race if e.g. two internal
+ messages were emitted at startup when the property was not yet set. This
+ has been seen to happen in practice. It had no bad effect except a very
+ small stationary memory leak, but made using thread analyzers unreliable
+ (as it was rightfully detected as a problem).
+ closes https://github.com/rsyslog/rsyslog/issues/2012
+- bugfix: potential segfault on startup
+ timezone info table was "sorted" even though it may be NULL. There is
+ no practical case known where this lead to an actual abort, but in
+ theory it would be possible. If so, it would happen immediately on
+ startup.
+ Detected by clang ubsan.
+- omhiredis bugfix: rsyslog segfault on startup if no template is specified
+- omprog bugfix: argv[0] not set when using binary without arguments
+ When using the omprog plugin with a binary without arguments, argv[0] (the
+ name of the binary) is not set, causing binaries that depend on this value
+ being set to crash or misbehave.
+ This patch also mildly refactors omprog argv[] creations, albeit some more
+ refactoring would be useful.
+ closes https://github.com/rsyslog/rsyslog/issues/1858
+- core: refactoring of rsyslog's cstr "class"
+ Function cstrGetSzStrNoNULL shall modified the string buffer on each call,
+ albeit it is considered a "read-only" function. It currently adds a '\0'
+ at the end. This is bad, especially when multiple threads access the same
+ string. As always the same data is written, it was not causing real issues
+ (except unnecessary cache writes), but it polluted the thread debugger and
+ as such prevent more elaborate automated tests.
+- parent directory creation function refactored
+ This should not cause any change of behavior, but is worth noting in case
+ we see a regression not caught by the CI system.
+- mmsnmptrapd bugfix: potential misaddressing
+ This only occurred in situations when the system was totally out of memory.
+- imkafka: fix potential small resource leak
+ If rdkafka handle cannot fully populated, cleanup is added. Previously, we
+ could leak a handle if e.g. no brokers were available. Note that this was
+ a cosmetic leak, as proper processing is not possible in any case and the
+ leak is once per listener, so not growing. But we now also ensure that
+ proper error reporting and handling is done in any case. Previously, we
+ may have some misleading error messages if the defunct kafka handle was
+ used.
+ closes https://github.com/rsyslog/rsyslog/issues/2084
+- imkafka bugfix: do not emit error message on regular state
+ This was misunderstood as an error state and could spam the system
+ log considerably. Regression from 8.31.0.
+- omkafka: expose operational status to user where useful
+ omkafka emits many useful operational status messages only to the debug
+ log. After careful review, we have exposed many of these as user error
+ and warning message (ex: librdkafka queue full, so user knows why we
+ suspend the plugin temporarily). This may have made the module too
+ chatty. If so, one can always filter out messages via configuration. And
+ if we really went overboard, we can undo those parts with the next
+ release. So it's better to give a bit more than less, as this definitely
+ eases troubleshooting for users.
+ closes https://github.com/rsyslog/rsyslog/pull/2334
+- omkafka bugfix: potential message duplication
+ If a message that already failed in librdkafka was resubmitted and that
+ resubmit also failed, it got duplicated.
+- omkafka: fix multithreading
+ omkafka has several issue if multiple worker instances are used. This commit
+ actually make the module use a single worker thread at max. Reasoning:
+ Librdkafka creates background threads itself. So omkafka basically needs to move
+ memory buffers over to librdkafka, which then does the heavy hauling. As such, we
+ think that it is best to run max one wrkr instance of omkafka -- otherwise we just
+ get additional locking (contention) overhead without any real gain. As such,
+ we use a global mutex for doAction which ensures only one worker can be active
+ at any given time. That mutex is also used to guard utility functions (like
+ tryResume) which may also be accessed by multiple workers in parallel.
+ Note: shall this method be changed, the kafka connection/suspension handling needs
+ to be refactored. The current code assumes that all workers share state information
+ including librdkafka handles.
+ closes https://github.com/rsyslog/rsyslog/issues/2313
+- omkafka bugfix: potential misaddressing
+ The failed message list is improperly cleaned. This is a regression
+ from recent commit 4eae19e089b5a83da679fe29398c6b2c10003793, which
+ was introduced in 8.31.0.
+ This problem is more likely to happen under heavy load or bad
+ connectivity, when the local librdkafka queue overruns or message
+ delivery times out.
+ closes https://github.com/rsyslog/rsyslog/issues/2184
+ closes https://github.com/rsyslog/rsyslog/issues/2067
+- omkafka bugfix: build fails with older versions of librdkafka
+ closes https://github.com/rsyslog/rsyslog/issues/2168
+- omgssapi bugfix: fix compiler warnings with gcc-7
+ closes https://github.com/rsyslog/rsyslog/issues/2097
+- dnscache bugfix: entries were cached based on IP AND port number
+ That hash key which is used to find out already cached dns entry gets
+ incorrectly computed from the whole sockaddr_storage
+ (sockaddr_in/sockaddr_in6) structure including a sin_port (which doesn't
+ have a static value) instead of only an address, thus creating redundant
+ dns cache entries/consuming more space. This lead to potentially high memory
+ usage and ineffectiveness of the case. It could be considered a memory leak.
+ Thanks to Martin Osvald for the patch.
+ see also: https://github.com/rsyslog/rsyslog/pull/2160
+- omkafka bugfix: fixed memory leak
+ a memory leak occurred when librdkafka communicated error/status information
+ to omkafka. this seems to happen relatively frequently, so this leak
+ could be pretty problematic.
+- mmdblookup bugfix: replace thread-unsafe strtok() by thread-safe counterpart
+ Many thanks to Will Storey (github user @horgh) for mentioning this and
+ his phantastic help in debugging this rsyslog problem!
+- pmnormalize bugfix: remove unsave "strcat" implementation
+- rainerscript bugfix: ltrim() and rtrim function misaddressing
+ This could lead to a segfault and was triggered by certain input data
+ schemes. For example, a ltrim(" a") could lead to the fault.
+- imklog bugfix: local host IP was hardcoded to 127.0.0.1
+ This is now taken from the global localHostIP setting, which is used
+ consistent across all modules.
+ Also, the removed (2012?) directive $klogLocalIPIF has been added
+ again but directly marked as removed. That way, an informative error
+ message is generated if someone tries to use it.
+ closes https://github.com/rsyslog/rsyslog/issues/2276
+- cleanup: remove obsolete pre-KSI GuardTime signature interface
+ this is no longer functional starting Jan 2018 as it reached end of life
+ closes https://github.com/rsyslog/rsyslog/issues/2128
+- cleanup: obsolete definition SOL_TCP replaced by newer IPPROTO_TCP
+ this should not have any effect at all except better portability, but is
+ worth mentioning in the ChangeLog nevertheless.
+- lookup tables: fixed undefined behavior detected by UBSan
+- CI testing
+ - ARM (via Raspberry PI) added to CI system
+ - Debian 9 added to CI system
+ - omgssapi and usertools components are now also tested in Travis
+ - test coverage on BSD has been enhanced
+------------------------------------------------------------------------------
+Version 8.31.0 [v8-stable] 2017-11-28
+- NEW BUILD DEPENDENCY: ommongodb now requires libmongo-c
+ instead of deprecated libmongo-client.
+- remove systemd embedded code, use libsystemd instead
+ Since the early days rsyslog used the original systemd embedded
+ interface code. This version now uses libsystemd where available.
+ If we do not find libsystemd, we assume the system does not use
+ systemd, which is a safe assumption nowadays. This ensures we use the
+ fresh interface code and also removes bloat from our project.
+ closes https://github.com/rsyslog/rsyslog/issues/1933
+- mmanon: add support for IPv6 addresses with embedded IPv4 address
+ While this format is uncommon, it may still be present in logs and as
+ such should be supported. It is configurable via individual settings,
+ though. Especially the number of bits to anonymize may be desired to
+ be different than in pure IPv6.
+- ommongodb: big refactoring, more or less a feature-enhanced rewrite
+ New features are :
+ * Handle TLS connection to mongodb
+ * Handle MongoDB Replicasets
+ * Added the 'ssl_ca' and 'ssl_cert' directives to configure tls connection
+ * Added 'uristr' directive to configure the connection uri in the form
+ of 'mongodb://...'
+ Now uses the official mongo-c-driver library instead of the deprecated
+ mongo-client library
+ Special thanks to Hugo Soszynski and Jérémie Jourdin for there hard work
+ to make this a reality!
+ See also: https://github.com/rsyslog/rsyslog/pull/1917
+- rainerscript: add parse_time() function
+ Thanks to Stephen Workman for implementing this.
+- omelasticsearch: add LF to every elastic response for error file
+ error file content was written without LF after each message, making
+ it hard to work with and monitor.
+ Thanks to Yaroslav Bo for the patch.
+- omelasticsearch: add pipeline support
+ supports static and dynamic ElasticSearch pipeline parameter.
+ closes https://github.com/rsyslog/rsyslog/issues/1411
+ Thanks to github users scibi and WaeCo for the implementation.
+- lmsig_ksi_ls12: support asynchronous mode of libksi
+- omprog: added error handling and transaction support for external plugins
+ This permits much better integration of external output modules.
+ Special thanks to Joan Sala for providing this work!
+- imzmq3/omzmq3: marked as deprecated, modules will be remove in v8.41
+ see also: https://github.com/rsyslog/rsyslog/issues/2100
+- imzmq3/omzmq3: fixed build issues with gcc-7
+- core: emit error message on abnormal input thread termination
+ This indicates a serious issue of which the user should be notified.
+ Was not done so far and caused grief when troubleshooting issues.
+- core: refactored locking for json variable access
+ refactored the method so that it consistent in all functions and easier
+ to follow. Most importantly, now an as simple as possible locking paradigm
+ of lock ... unlock within the function. Hopefully easier to understand
+ both for humans and static code analyzers.
+- core: refactored creation of UDP sockets
+ was very old, hard to follow code; streamlined that a bit
+- core/dnscache: refactor locking
+ keep a simple lock ... unlock scheme within the function. That is
+ easier to follow for both humans as well as static analyzers.
+ Also removes Coverity scan CID 185419
+- rainerscript: use crypto-grade random number generator for random() function
+ We now use /dev/urandom if available. If not, we fall back to the weak PRNG.
+- imkafka: improve error reporting and cleanup refactoring
+- imkafka bugfix: segfault if "broker" parameter is not specified
+ Now emits warning message instead and uses hardcoded default
+ (which usually matches where the kafka broker can be found).
+ fixes https://github.com/rsyslog/rsyslog/issues/2085
+- omkafka: improve error reporting
+- omkafka: slight speedup do to refactoring of LIST class
+ double-linked list was used for temporarily undeliverable message tracking
+ where singly-linked list was sufficient. Changed that.
+- TCP syslog: support SNI when connecting as a client
+ This is done if a hostname is configured and turned off if an IP is used.
+ Thanks to Art O Cathain for the patch.
+ see also https://github.com/rsyslog/rsyslog/pull/1393
+- msg variable bugfix: potential segfault on variable access
+ A segfault is likely to happen if during processing a variable with
+ more than one path component is accessed (e.g. $!path!var) and NO
+ variables oft hat kind (local, message, global) are defined at all.
+ closes https://github.com/rsyslog/rsyslog/issues/1920
+- ratelimiting bugfix: data race in Linux-like ratelimiter
+ access to the Linux-like ratelimiter was not properly synchronized, and
+ the system rate-limiter was not using it in any case.
+ This could lead to the rate-limit settings not being properly
+ respected, but no "hard error".
+- core/template bugfix: potential NULL pointer access at config load
+ could happen if the config was loaded and the parameters could not properly
+ be processed. If so, this occurred only during the startup phase.
+ Detected by Coverity scan, CID 185318
+- core/json var subsystem bugfix: segfault in MsgSetPropsViaJSON
+ Invalid libfastjson API use lead to double-free. This was most importantly
+ triggered by mmexternal (but could potentially be triggered by other
+ uses as well)
+ closes https://github.com/rsyslog/rsyslog/issues/1822
+- core/wrkr threads bugfix: race condition
+ During e.g. shutdown it could happen that a worker thread was started
+ and immediately be requested to terminate. In such situations there was
+ a race the prevented proper initialization. This could lead to follow-on
+ problems.
+ We believe (but could not proof) that this also could lead to a hang of
+ the termination process. Thus we claim to close an issue tracker down
+ here below, but are not 100% certain it really closes it (we hope for
+ user feedback on this). In any case, the thread debugger showed invalid
+ operations and this has been fixed, so it is useful in any case.
+ closes https://github.com/rsyslog/rsyslog/issues/1959
+- core/wtp: potential hang during shutdown
+ when the wtp worker is cancelled in the final stage of shutting down
+ while the mutex is locked and there is one worker left, the system
+ will hang. The reason is that the cancelled thread could not free the
+ mutex that the other needs in order to shut down orderly.
+ Detected with clang thread sanitizer.
+- omfwd bugfix: generate error message on connection failure
+- imtcp bugfix: "streamdriver.mode" parameter could not be set to 0
+- imjournal bugfix: module was defunctional
+ The open function was broken by commit 92ac801, resulting in
+ no data being ever read from the journal.
+ patch bases on the idea of Radovan Sroka given here:
+ https://github.com/rsyslog/rsyslog/issues/1895#issuecomment-339017357
+ but follows the current imjournal-paradigm of having the journal
+ handle inside a global variable.
+ see also https://github.com/rsyslog/rsyslog/issues/1895
+ closes https://github.com/rsyslog/rsyslog/issues/1897
+- imjournal: refactor error handling, fix error messages
+ imjournal did not try to recover from errors and used the error state
+ returned by journal functions incorrectly, resulting in misleading
+ error messages. Fixed this and also increased the number of error
+ messages so that it now is easier to diagnose problems with this module.
+ Also a little bit of internal brush-up.
+ -mmdblookup bugfix: fix potential segfault due to threading issues
+ libmaxminddb seems to have issues when running under multiple threads. As
+ a first measure, we prevent mmdblookup now from running on more than one
+ thread concurrently.
+ see also: https://github.com/rsyslog/rsyslog/issues/1885#issuecomment-344882616
+- omelasticsearch bugfix: operational error messages not passed to user
+ This lead to sometimes hard to diagnose problem. Note that for obvious
+ reasons the amount of messages from omelasticsearch has increased; this
+ is not a sign of a problem in itself -- but it may reveal problems that
+ existed before and went unnoticed. Also note that too-verbose messages
+ can be filtered out via regular rsyslog methods (e.g. message discarding
+ based on content).
+- omkafka bugfixes
+ * statistics counter maxoutqsize could not be reset
+ Thanks to github user flisky for the patch.
+ * potential hang condition
+ omkafka did not release a mutex under some error conditions (most
+ notably out of memory on specific alloc calls). This lead to a hang
+ during actively processing messages or during shutdown (at latest).
+ This could happen only if dynamic topics were configured.
+ Detected by Coverity Scan, CID 185781 (originally 185721, detected
+ as a different issue by Coverity after code refactoring done in regard
+ to 185721 -- then the problem became more obvious).
+ * file handle leak, which could occur when local buffering
+ of messages was needed
+ * invalid load of failedmsg file on startup if disabled
+ error "rsyslogd: omkafka: could not load failed messages from "
+ "file (null) error -2027 - failed messages will not be resend."
+ occurs because, despite `keepFailedMessages="off"` as a default,
+ omkafka still tries to check for and load a `(none)` file which
+ triggers an IO error of sorts according to the 2027 link above.
+ Obviously, it probably shouldn't try load the file if
+ `keepFailedMessages` is not enabled.
+ Thanks to github user JPvRiel for a very good error report and
+ analysis.
+ closes https://github.com/rsyslog/rsyslog/issues/1765
+ * various config parameters did not work
+ These were not even recognized when used and lead to a config startup
+ error message:
+ ~ closeTimeout
+ ~ reopenOnHup
+ ~ resubmitOnFailure
+ ~ keepFailedMessages
+ ~ failedMsgFile
+ closes https://github.com/rsyslog/rsyslog/issues/2052
+ * considerable memory leak
+ Whenever a message could (temporarily) not be delivered to kafka,
+ a non-trivial amount of memory was leaked. This could sum up to
+ quite a big memory leak.
+ fixes https://github.com/rsyslog/rsyslog/issues/1991
+ * some small memory leaks fixed
+ most of them cosmetic or a few bytes statically (not growing as
+ omkafka was used) -- thus we do not mention each one explicitly.
+ For more details, see git commit log or this pull request:
+ https://github.com/rsyslog/rsyslog/pull/2051
+- kafka bugfix: problem on invalid kafka configuration values
+ omkafka ended up in an endless loop and high cpu.
+ imkafka tried to subscribe to a not connected kafka server.
+ closes https://github.com/rsyslog/rsyslog/issues/1806
+- [io]mgssapi: fix build problems (regression from 8.30.0)
+- [io]czmq: fix build problems on some platforms (namely gcc 7, clang 5)
+- tcpsrv bugfix: potential hang during shutdown
+- queue bugfix: potential hang during shutdown
+- queue bugfix: NULL pointer dereference during config processing
+ If the queue parameters were incorrectly given, a NULL pointer dereference
+ could happen during config parsing. Once post that stage, no problem could
+ occur.
+ Detected by Coverity scan, CID 185339
+- imczmq bugfix: segfault
+ happened in a call to
+ 371: zcert_destroy(&serverCert) called from rcvData().
+ Thanks to ~achiketa Prachanda for the patch.
+- imfile: some small performance enhancements
+ Thanks to Peter Portante for the patch
+- omfile: handle file open error via SUSPEND mode
+ For a while, an open file error lead to suspension as the error was
+ not detected by the rule engine. This has changed with fixes
+ in 8.30.0. I asked users what they prefer (and expect) and
+ everyone meant it should still be handled via suspension. See
+ github tracker below for more details.
+ closes https://github.com/rsyslog/rsyslog/issues/1832
+- omfile bugfix: race during directory creation can lead to loop
+ There was a race where two threads were competing for directory creation
+ which could lead to none succeeding and a flood of error message like this
+ "error during config processing: omfile: creating parent directories for
+ file". This has been solved.
+ Thanks to Niko Kortström for the patch.
+- imudp: improve error reporting
+ When udp listener cannot be created, an error message containing
+ the ip-address and port is put out.
+ closes https://github.com/rsyslog/rsyslog/issues/1899
+- omrelp bugfix: incorrect error handling
+ if librelp with TLS but without Authentication was included, librelp
+ did not emit the correct error message due to invalid error code
+ check. It also did not err-out but instead suspended itself.
+ Detected by Coverity scan, CID 185362
+- [io]mrelp bugfix: segfault on startup if configured cert not readable
+ When the certificate file specified in the omrelp/imrelp configuration
+ can't be accessed, e.g. because it doesn't exist or you don't have
+ permission to do so, a Segmentation Fault will appear when you start
+ Rsyslog. This commit fixes that problem.
+ closes https://github.com/rsyslog/rsyslog/issues/1869
+- mmanon fix: make build under gcc 7
+ Thanks to William Dauchy for the patch
+- mmpstrucdata bugfix: formatting error of ']' char
+ This was invalidly formatted as '"'. Thanks to github user
+ wu3396 for the error report including the patch idea.
+ closes https://github.com/rsyslog/rsyslog/issues/1826
+- mmexternalb bugfix: memory leak
+- core/stats bugfix: memory leak if sender stats or tracking are enabled
+- core bugfix: potential segfault during startup
+ A NULL pointer could be accessed if there was a problem with the
+ timezone parameters. Affects only startup, once started, no problem
+ existed.
+ Detected by Coverity scan; CID 185414
+- core bugfix: potential race in variable handling
+ Root of variable tree is accessed prior to locking access to it.
+ This introduces a race that may result in various kinds of
+ misaddressing.
+ Found while reviewing code, no bug report exists.
+- core bugfix: potential segfault when shutting down rsyslog
+ when rulesets are nested a segfault can occur when shutting down
+ rsyslog. the reason is that rule sets are destructed in load order,
+ which means a "later" ruleset may still be active when an "earlier"
+ one was already destructed. In these cases, a "call" can invalidly
+ call into the earlier ruleset, which is destructed and so leads to
+ invalid memory access. If a segfault actually happens depends on the
+ OS, but it is highly probable.
+ The cure is to split the queue shutdown sequence. In a first step,
+ all worker threads are terminated and the queue set to enqOnly.
+ While some are terminated, it is still possible that the others
+ enqueue messages into the queue (which are then just placed into the
+ queue, not processed). After this happens, a call can no longer
+ be issued (as there are no more workers). So then we can destruct
+ the rulesets in any order.
+ closes https://github.com/rsyslog/rsyslog/issues/1122
+- core/action bugfix: potential misaddressing when processing hard errors
+ For batches that did fail in an output module, the rsyslog core
+ tries to find offending messages that generate hard (non-recoverable)
+ errors. During this process, the action templates for each message
+ are copied into a temporary buffer. That copy was invalidly sized,
+ actually copying only the first template string. As such, outputs
+ that requested more template strings AND had errors in batch submission
+ received uninitialized pointers. This could lead to all sorts of
+ problems.
+ see also https://github.com/rsyslog/rsyslog/issues/1885
+ closes https://github.com/rsyslog/rsyslog/issues/1906
+- template object bugfix: NULL pointer access on invalid parameters
+ could happen only during startup
+ Detected by Coverity scan, CID 185376
+- omjournal bugfix: NULL pointer access on invalid parameters
+ could happen only during startup
+- omelasticsearch bugfix: configured credentials not used during health check
+ Authentication credentials were not applied during health check,
+ permission to use unsigned CERTS was not applied to regular data post.
+ closes https://github.com/rsyslog/rsyslog/issues/1949
+- omelasticsearch bugfix: abort on unavailable ES server
+ Depending on the state of unavailability (libcurl return code),
+ omelasticsearch tries to process a NULL return message, what
+ leads to a segfault.
+ This fixes the problem and introduces better error handling and
+ better error messages.
+ see also https://github.com/rsyslog/rsyslog/issues/1885
+- omelasticsearch: fix memory leak and potential misaddressing
+ Commit 96b5fce introduced regressions, leading to potential misaddressing
+ and a very probable memory leak. This commit fixes the issues and
+ hardens the module to better detect some error cases in the
+ future.
+ It also adds valgrind-based testbench tests which ensure that no
+ pointer errors exist. If they had been in place, the regressions
+ would never have been undetected.
+ Note that commit 96b5fce was introduced in 8.23.0 on Nov, 15th 2016.
+ Many thanks to Yaroslav Bo for alerting me on the root problem and
+ providing a very good analysis and guidance.
+ see also https://github.com/rsyslog/rsyslog/issues/1906
+ see also https://github.com/rsyslog/rsyslog/issues/1964
+ closes https://github.com/rsyslog/rsyslog/issues/1962
+- omelasticsearch bugfix: output from libcurl to stdout
+ omelasticsearch made libcurl output messages to stdout. This
+ commit fixes that. It also automatically enables libcurl verbose
+ mode during debug runs - it needs to be seen if this is smart or
+ not (previously, code needed to be commented in).
+ closes https://github.com/rsyslog/rsyslog/issues/1909
+- iczmq bugfix: potential memory leak
+- imptcp bugfix: potential misaddressing
+ When during a connection request the remote peer could not be
+ identified, imptcp could misaddress memory if it is configured
+ to emit messages on connection open.
+ Detected by clang 5.0 static analyzer.
+- imptcp: potential buffer overflow
+ if the local hostname or IP is larger than NI_MAXHOST-1, an internal
+ buffer is overflowed. This is irrespective of any input data.
+ Detected by Coverity scan, CID 185390
+- core/nsd_gtls: fix potential uninitialized data access
+ could occur during certificate check
+ found by clang 5.0 static analyzer
+- stats bugfix: potential program hang
+ due to missing unlock. This could only occur if pstats was set to
+ CEE-format logging (very uncommon) AND if the system runs out of
+ memory (in which case other things go pretty bad as well).
+ found by Coverity scan
+- omfwd bugfix: memory leak if network namespaces are used
+ very seldom used feature, occurs only during error case
+ found by Coverity scan.
+- core: potential misaddressing when accessing JSON properties
+ When a JSON property is accessed in template processing, memory may
+ have been misaddressed or a double-free may occur while obtaining the
+ property.
+ This was detected by a Coverity scan.
+- gcry crypto provider bugfixes: potential misaddressing and memory leak
+ If the config parameters were invalid, a misaddressing could occur. If so,
+ this happens only during startup.
+ Also, a memory leak existed when the crypto provider errored out. This could
+ build up if it were used in frequently-changing dynafiles. This was
+ detected by Coverity scan, CID 185360.
+- core/file stream object bugfix: memory leak
+ If a multiline read errored out, a line buffer could be leaked.
+ Detected by Coverity scan, CID 185328
+- imdiag bugfix: double mutex unlock when working with stats
+ Note: while this could potentially lead to a program hang, it affected
+ only testbench execution as imdiag is a testbench-only tool.
+ Detected by Coverity scan, CID 185348 and 185350
+- fixed several minor and cosmetic issues found by Coverity scan
+ including false positives. For details see "$ git log". All noteworthy
+ issues are separately mentioned in this ChangeLog. The ones not mentioned
+ are for example problems that can only occur during out of memory
+ conditions, under which it is extremely likely tha the rsyslog process
+ will be killed in any case
+- testbench:
+ * added compile-check for [io]mgssapi, mmcount
+ * harden tests against hanging previous instances
+ * re-enable RELP tests on Solaris
+ * added basic test for imjournal
+ * added threading tests via valgrind's helgrind tool
+ * added valgrind test for kafka modules
+ * added capability to run elasticsearch tests with
+ a) different ElasticSearch versions
+ b) independently from OS-installed version
+ This also sets base to enable more elaborate ES tests
+ * further relaxed timing of dynstats tests, as they tend to create
+ false positives on slow machines
+- CI: improved test coverage on FreeBSD
+- Travis: clang static analyzer 5.0 now run over all source files
+- build: make compile warning-free under gcc 7
+------------------------------------------------------------------------------
+Version 8.30.0 [v8-stable] 2017-10-17
+- NEW BUILD REQUIREMENTS
+ * libfastjson 0.99.7 is now mandatory
+ the new version is required to support case-insensitive variable
+ comparisons, which are now the default
+ * when building imjournal, libsystemd-journal >= 234 is now recommended
+ This is to support the imjournal enhancement. Note that it is possible
+ to build with lower version, but this will degrade imjournal functionality.
+- CHANGE OF BEHAVIOR: all variables are now case-insensitive by default
+ Formerly, JSON based variables ($!, $., $/) were case-sensitive.
+ Turn old default back on: global(variables.casesensitive="on")
+ See ChangeLog entry below for more details.
+- core: handle (JSON) variables in case-insensitive way
+ The variable system inside rsyslog is JSON based (for easy consumption
+ of JSON input, the prime source of structured data). In JSON, keys
+ ("variable names") are case-sensitive. This causes constant problems
+ inside rsyslog configurations. A major nit is that case-insensitivity
+ option inside templates (even if turned on) does not work with JSON
+ keys because they of inner workings*1.
+ It is much more natural to treat keys in a case-INsensitive way (e.g.
+ "$!Key" and "$!key" are the same). We do not expect any real problems
+ out of this, as key names only differing in case is highly unlikely.
+ However, as it is possible we provide a way to enable case-sensitivity
+ via the global(variables.casesensitive="on") global config object.
+ Note that the default is to do case-insensitive matches. The reason
+ is that this is the right thing to do in almost all cases, and we do
+ not envision any problems at all in existing deployments.
+ *1 Note: case-insensitivity in rsyslog is achieved by converting all
+ names to lower case. So that the higher speed of strcmp() can be used.
+ The template option does actually that, convert the template keys to
+ lower case. Unfortunately, this does not work with JSON, as JSON keys
+ are NOT converted to lower case.
+ closes https://github.com/rsyslog/rsyslog/issues/1805
+- imjournal: made switching to persistent journal in runtime possible
+ with this patch imjournal can continue logging after switch to
+ persistent journal without need to restart rsyslog service
+ Thanks to github user jvymazal for the patch
+- mmanon: complete refactor and enhancements
+ - add pseudonymization mode
+ - add address randomization mode
+ - add support for IPv6 (this also supports various replacement modes)
+ closes https://github.com/rsyslog/rsyslog/issues/1614
+ also fixes bugs
+ - in IPv4 address recognition
+ closes https://github.com/rsyslog/rsyslog/issues/1720
+ - in IPv4 simple mode to-be-anonymized bits can get wrong
+ closes https://github.com/rsyslog/rsyslog/issues/1717
+- imfile: add "fileoffset" metadata
+ This permits to send the offset from which the message was read together
+ with the message text.
+ Thanks to github user derekjsonar for the initial implementation which
+ we extended to use the message start offset.
+- RainerScript: add ltrim and rtrim functions
+ closes https://github.com/rsyslog/rsyslog/issues/1711
+- core: report module name when suspending action
+ Thanks to Orion Poplawski for the patch.
+- core: add ability to limit number of error messages going to stderr
+ This permits to put a hard limit on the number of messages that can
+ go to stderr. If for nothing else, this capability is helpful for the
+ testbench. It permits to reduce spamming the test log while still
+ providing the ability to see initial error messages. Might also be
+ useful for some practical deployments.
+ global parameter: global(errorMessagesToStderr.maxNumber)
+- tcpsrv subsystem: improve clarity of some error messages
+ operating system error message are added to some messages, providing
+ better advise of what actually is the error cause
+- imptcp: include module name in error msg
+- imtcp: include module name in error msg
+- tls improvement: better error message if certificate file cannot be read
+- omfwd: slightly improved error messages during config parsing
+ They now contain config file/line number information where this was missing.
+- ommysql improvements
+ * Return specific code for unrecoverable errors. This makes retry processing
+ more performant and robust.
+ * error messages improved
+ * Update to utilize native v8 transactional interface. Previously, it used
+ the v7 interface with v8 emulation.
+ * treat server and client-generated messages differently
+ Server-generated error messages are considered non-recoverable, while
+ client generated once point into connection problems (which simply can
+ be retried). This is part of the improvements towards better
+ message-induced errors. Previous commits did only handle SQL parsing
+ errors, now we aim to address all of the message-induced error. We assume
+ that all server-generated errors are such - mysql API unfortunately does
+ not provide a clear indication of what type if error this is and it is
+ out of question to check for hundreds of error codes.
+ closes https://github.com/rsyslog/rsyslog/issues/1830
+- ommysql bugfix: do not duplicate entries on failed transaction
+ If a multi-message batch contains data errors, messages may be
+ duplicated as connection close is implicit commit (not rollback).
+ This patch introduces a specific rollback request in those cases.
+ closes https://github.com/rsyslog/rsyslog/issues/1829
+- imtcp bugfix: parameter priorityString was ignored
+ defaults were always used
+- template/bugfix: invalid template option conflict detection
+ This prevented "option.casesensitive" to be used with the SQL and JSON
+ options.
+- core/actions: fix handling of data-induced errors
+ Rsyslog core should try to detect data-induced (unrecoverable) errors
+ during action processing. An example of such is invalid SQL statements.
+ If the action returns a data error, rsyslog shall retry individual
+ messages from a batch in an effort to log those without errors. The others
+ shall be dropped.
+ This logic was temporarily disabled after the switch to the new v8
+ transaction interface. Now this bug is fixed and the testbench has been
+ amended to detect problems in the future.
+ closes https://github.com/rsyslog/rsyslog/issues/974
+- core/action bugfix: no "action suspended" message during retry processing
+ The action engine does not emit "action suspended" messages but "resumed"
+ ones in retry processing. This is wrong, as they are a strong indication
+ that something does not work correctly. Nevertheless, "resumed" messages
+ were emitted, which was very puzzling for the user.
+ This patch fixes it so that "suspend" messages are given during retry
+ processing. These do not contain a retry timestamp, providing evidence
+ that a retry is currently being tried.
+ closes https://github.com/rsyslog/rsyslog/issues/1069
+- core/ratelimit bugfix: race can lead to segfault
+ There was a race in iminternalAddMsg(), where the mutex is
+ released and after that the passed message object is accessed.
+ If the mainloop iterates in between, the msg may have already
+ been deleted by this time, resulting in a segfault.
+ Most importantly, there is no need to release the mutex lock
+ early, as suggested by current code. Inside mainloop the mutex
+ is acquired when it is time to do so, so at worst we'll have a
+ very slight wait there (which really does not matter at all).
+ This only happens if a large number of internal messages are emitted.
+ closes https://github.com/rsyslog/rsyslog/issues/1828
+- core bugfix: rsyslog aborts if errmsg is generated in early startup
+ Note that the segfault can occur only during early startup. Once
+ rsyslog has started, everything works reliably. This condition can
+ especially be triggered by specifying invalid TLS default certificates.
+ closes https://github.com/rsyslog/rsyslog/issues/1783
+ closes https://github.com/rsyslog/rsyslog/issues/1786
+- core bugfix: informational messages was logged with error severity
+ When the main loop reaped a child process (a normal action), this was
+ reported as an error. This caused user confusion. Now it is reported as
+ an informational message.
+- core bugfix: --enable-debugless build was broken
+ This was a regression from the v8.29.0 debug enhancements
+ Thanks to Stephen Workman for the patch.
+- queue bugfix: file write error message was incorrect
+ when a queue was restarted from disk file, it almost always
+ emitted a message claiming
+ "file opened for non-append write, but already contains xxx bytes"
+ This message was wrong and did not indicate a real error condition.
+ The predicate check was incorrect.
+ closes https://github.com/rsyslog/rsyslog/issues/170 (kind of)
+- omrelp bugfix: segfault when rebindinterval parameter is used
+- imudp bugfix: UDP oversize message not properly handled
+ When a message larger than supported by the UDP stack is to be sent,
+ EMSGSIZE is returned, but not specifically handled. That in turn
+ will lead to action suspension. However, this does not make sense
+ because messages over the UDP max message size simply cannot be sent.
+ closes https://github.com/rsyslog/rsyslog/issues/1654
+- core bugfix: memory corruption during configuration parsing
+ when omfwd is used with the $streamdriverpermittedpeers legacy
+ parameter, a memory corruption can occur. This depends on the
+ length of the provided strings and probably the malloc subsystem.
+ Once config parsing succeeds, no problem can happen.
+ Thanks to Brent Douglas for initially reporting this issue and
+ providing great analysis.
+ Thanks to github user bwdoll for analyzing this bug and providing
+ a suggested fix (which is almost what this commit includes).
+ closes https://github.com/rsyslog/rsyslog/issues/1408
+ closes https://github.com/rsyslog/rsyslog/issues/1474
+- core bugfix: race on worker thread termination during shutdown
+ The testbench got some occasionally failing tests. Review of
+ them brought up the idea that there is a race during worker
+ threat termination. Further investigation showed that this
+ might be a long-standing issue, but so far did not really
+ surface as the timing was almost always correct. However,
+ with the new functionality to emit a message on worker
+ shutdown (v8.29), the timing got more complex and now this
+ seemed to occasionally surface.
+ closes https://github.com/rsyslog/rsyslog/issues/1754
+- omelasticsearch: avoid ES5 warnings while sending json in bulkmode
+ do this by adding proper content type header to ES request
+ Thanks to William Dauchy for the patch
+- omelasticsearch bugfix: incompatibility with newer ElasticSearch version
+ ElasticSearch changed its API in newer versions. When "bulkmode" is enabled
+ in omelasticsearch, rsyslog seems to consider all responses from Elasticsearch
+ as errors, even the successful ones. As a consequence, every single request
+ ends up being logged into the error file.
+ closes https://github.com/rsyslog/rsyslog/issues/1731
+ Thanks to Vincent Quéméner for the patch.
+- imptcp bugfix: invalid mutex addressing on some platforms
+ code did not compile on platforms without atomic instructions
+ Thanks to github user petiepooo for the patch
+- imptcp bugfix: do not accept missing port in legacy listener definition
+ If legacy listener definition was used, a missing port was accepted during
+ the config read phase but errored out upon listener activation. This now
+ errors out directly when processing the config directive.
+------------------------------------------------------------------------------
+Version 8.29.0 [v8-stable] 2017-08-08
+- imptcp: add experimental parameter "multiline"
+ This enables a heuristic to support multiline messages on raw tcp syslog
+ connections.
+- imptcp: framing-related error messages now also indicate remote peer
+ This is the case e.g. for oversize messages.
+- imtcp: framing-related error messages now also indicate remote peer
+ This is the case e.g. for oversize messages.
+- imptcp: add session statistics counter
+ - session.opened
+ - session.openfailed
+ - session.closed
+- imtcp: add ability to specify GnuTLS priority string
+ This permits to set cipher details on a very low level.
+- impstats: add new resource counter "openfiles"
+- pmnormalize: new parser module
+ Parser module that uses liblognorm to parse incoming messages.
+- core/queue: provide informational messages on thread startup and shutdown
+ This provides better insight into operational state of rsyslog and is useful
+ in monitoring system health. Note that this causes the emission of messages
+ not previously seen. They are of syslog.informational priority.
+- omfwd/udp: improve error reporting, deprecate maxerrormessages parameter
+ Generally improved udp-related error messages (e.g. they now contain the
+ socket number, which makes it easier to related them to errors reported by
+ net.c subsystem).
+ We also deprecated (removed) the "maxerrormessages" configuration parameters.
+ It provided some very rough rate-limiting capabilities and was introduced
+ before we had native rate-limiters. The default was that only the first 5
+ error messages were actually reported. For long-running instances, that
+ meant that in many cases no errors were ever reported. We now use the default
+ internal message rate limiter, which works far better and ensures that also
+ long-running instances will be able to emit error messages after prolonged
+ runtime. In contrast, this also means that users will see more error
+ messages from rsyslog, but that should actually improve the end user
+ experience.
+- core: add parameters debug.file and debug.whitelist
+ allows one to generate debug log output only of specific files
+ Background information available at:
+ https://www.linkedin.com/pulse/improving-rsyslog-debug-output-jan-gerhards
+- core/net.c: improve UDP socket creation error messages
+- omfwd/udp: add "udp.sendbuf" parameter
+- core: make rsyslog internal message rate-limiter configurable
+ New parameters "internalmsg.ratelimit.interval" and "internalmsg.ratelimit.burst"
+ have been added.
+- omelasticsearch bugfixes and changed ES5 API support:
+ * avoid 404 during health check
+ Omelasticsearch responds differently to HTTP HEAD and GET requests and
+ returns correct state only on GET requests. This patch works around
+ that ES bug and always does a GET request even when technically a HEAD
+ request would be sufficient.
+ * avoid ES5 warnings while sending json
+ ES5 is generating warnings when sending json without the proper header:
+ $ curl -i -H "Content-Type: text/json" -XGET 'http://elasticsearch5:9200/' \
+ -d '{}\n'
+ HTTP/1.1 200 OK
+ Warning: 299 Elasticsearch-5.4.3-eed30a8 "Content type detection for rest
+ requests is deprecated. Specify the content type using the [Content-Type]
+ header." "Wed, 26 Jul 2017 14:33:28 GMT"
+ no issue on previous version.
+ Now, the header is set as application/json. It works for all versions
+ (tested on ES2 and ES5) we also handle the bulkmode where it should be
+ set to application/x-ndjson
+ closes https://github.com/rsyslog/rsyslog/issues/1546
+ * bugfix for memory leak while writing error file
+ Thanks to William Dauchy for providing the patches
+- imfile bugfix: wildcard detection issue on path wildcards
+ Wildcards mode was not properly detected when wildcards
+ were only used in a directory name on startup.
+ This caused imfile not to create a proper dynamic filewatch.
+ closes: https://github.com/rsyslog/rsyslog/issues/1672
+- omfwd bugfix: always give reason for suspension
+ In many cases, no error message were emitted when omfwd
+ went into action suspension, which was confusing for end
+ users. This patch enables explicit error messages in all
+ those cases.
+ closes https://github.com/rsyslog/rsyslog/issues/782
+- omfwd bugfix: configured compression level was not properly used
+ Thanks to Harshvardhan Shrivastava for the patch.
+- imptcp bugfix: potential socket leak on session shutdown
+ imptcp first tries to remove a to-be-shut-down socket from the
+ epoll set, and errors out if that does not work. In that case, the
+ underlying socket will be leaked.
+ This patch refactors the code; most importantly, it is not necessary
+ to remove the socket from the epoll set, as this happens automatically
+ on close. As such, we simply remove that part of the code, which
+ also removes the root cause of the socket leak.
+- omfwd/omudpspoof bugfix: switch udp client sockets to nonblocking mode
+ On very busy systems, we see "udp send error 11" inside the logs, and the requesting
+ action is being suspended (and later resumed). During the suspension period (in
+ default configuration), messages are lost. Error 11 translates to EAGAIN and the
+ cause of this problem is that the system is running out of UDP buffer space. This
+ can happen on very busy systems (with busy networks).
+ It is not an error per se. Doing a short wait will resolve the issue. The real root
+ cause of the issue is that omfwd uses a nonblocking socket for sending. If it were
+ blocking, the OS would block until the situation is resolved. The need for a
+ non-blocking sockets is a purely historical one. In the days of single-threaded
+ processing (pre v3), everything needed to be done by multiplexing, and blocking was
+ not permitted. Since then, the engine has dramatically changed. Actions now run on
+ their own thread(s). As such, there is no longer a hard need to use non-blocking i/o
+ for sending data. Many other output plugins also do blocking wait (e.g. omelasticsearch).
+ As such, the real root cause of the trouble is unnecessarily using non-blocking mode,
+ and consequently the right solution is to change that.
+ Note that using blocking i/o might change some timing inside rsyslog, especially
+ during shutdown. So theoretical there is regression potential in that area. However,
+ the core is designed to handle that situation (e.g. there is special shutdown code to
+ handle the blocking case), so this does not stand against the "proper" solution.
+ This patch applies the change on the rsyslog core level, within net.c. The only
+ users of the changed functionality are omfwd and omudpspoof. Imudp is unaffected as
+ it requests server sockets.
+ Note that according to the sendto() man page, there is a second cause for the EAGAIN
+ error, this is when the system temporarily runs out of ephemeral ports. It is not
+ 100% clear if this can also happen in the blocking case. However, if so, we can argue
+ this is a case where we really want the default retry logic. So for the time being,
+ it is appropriate to not handle EAGAIN in a special case any longer.
+ closes https://github.com/rsyslog/rsyslog/issues/1665
+- imklog: fix permitnonkernelfacility not working
+- impstats bugfix: impstats does not handle HUP
+ If the parameter "log.file" is specified, impstats writes its own
+ log file. However, HUP is not handled for this file, which makes
+ the functionality unusable with log rotation. It is also counter-
+ intuitive for users.
+ This patch enables correct HUP processing. As a sideline, it also
+ introduces a generic HUP processing framework for non-action type
+ of loadable modules.
+ closes https://github.com/rsyslog/rsyslog/issues/1662
+ closes https://github.com/rsyslog/rsyslog/issues/1663
+- core bugfix: segfault after configuration errors
+- core/queue bugfixes:
+ * Fix behavior of PersistStateInterval
+ If PersistStateInterval=1, then each log line read should cause the state file
+ to be updated, but this was not happening because nRecords was being post-increment.
+ Thanks to Anthony Howe for the patch.
+ * potential problem during deserialization
+ if queue object deserialization fails, invalid memory blocks might be
+ free'ed.
+ For more information see https://github.com/rsyslog/rsyslog/pull/1647
+ Thanks to Derek Smith for the patch.
+- core bugfix: message garbled after message modification
+ The MsgDup() function will return a garbled message object under these
+ conditions: The message was originally created with message length equal or
+ larger to CONF_RAWMSG_BUFSIZE. This makes rsyslog store the message in
+ dynamically allocated buffer space. Then, a component reduces the message
+ size to a size lower than CONGF_RAWMSG_BUFSIZE. A frequent sample is the
+ parser removing a known-bad LF at the end of the messages. Then, MsgDup is
+ executed. It checks the message size and finds that it is below
+ CONF_RAWMSG_BUFSIZE, which make it copy the msg object internal buffer
+ instead of the dynamically allocated one. That buffer was not written to in
+ the first place, so uninitialized data is copied. Note that no segfault can
+ happen, as the copied location was properly allocated, just not used in
+ this processing flow. In the end result, the new message object contains
+ garbage data. Whenever the new object is used (e.g. in a async ruleset or
+ action) that garbage will be used. Whenever the old object is accessed,
+ correct data will be used. Both types of access can happen inside the
+ same processing flow, which makes the problem appear to be random.
+ closes https://github.com/rsyslog/rsyslog/issues/1658
+- lmsig_ksi: removed pre-KSI_LS12 components
+ As of GuardTime, the provider, these no longer work due to backend
+ changes. The lmsig_ksi_ls12 module shall be used instead. This is
+ available since 8.27.0.
+- testbench bugfix: hang in tests if omstdout is not present
+ Many tests depend on omstdout. Given the fact that omstdout
+ is really only useful for the testbench (at least that's the intent),
+ we now require --enable-omstdout if --enable-testbench is given.
+ The alternative would have been to disable all those tests that
+ need it, which would have lead to considerable less testbench
+ coverage.
+ closes https://github.com/rsyslog/rsyslog/issues/1649
+------------------------------------------------------------------------------
+Version 8.28.0 [v8-stable] 2017-06-27
+- NEW BUILD REQUIREMENT: librelp 1.2.14 (to build relp components)
+ This was necessary because imrelp requires an API introduced in 1.2.14.
+- omfwd: add parameter "tcp_frameDelimiter"
+- omkafka: large refactor of kafka subsystem
+ This offers improvements and greatly increases reliability.
+ Closes https://github.com/rsyslog/rsyslog/issues/1559
+ Closes https://github.com/rsyslog/rsyslog/issues/1584
+ Closes https://github.com/rsyslog/rsyslog/issues/1515
+ Closes https://github.com/rsyslog/rsyslog/issues/1052
+ May fix https://github.com/rsyslog/rsyslog/issues/1230
+- imfile: improved handling of atomically renamed file (w/ wildcards)
+ if a file is atomically renamed, the state file is also being renamed,
+ so processing continues as if the original name were kept.
+ see also: https://github.com/rsyslog/rsyslog/issues/1417
+- imfile: add capability to truncate oversize messages or split into multiple
+ also in this case an error message is emitted. Both of these actions are
+ configurable. This also solves memory issues when an endregex does not
+ match for prolonged time. In that case, large parts of the file were
+ previously buffered, which could cause big problems in case e.g. the
+ endregex was simply wrong and never matched. For the later, see also
+ https://github.com/rsyslog/rsyslog/issues/1552
+- mmdblookup
+ * upgraded from "contrib" to "fully supported" state
+ * refactored and simplified code
+ * added ability to specify custom names for extracted fields
+ * added ability to specify container name for extracted fields
+ * bugfix: fixed multiple memory leaks
+- imptcp: add new parameter "flowControl"
+- imrelp: add "maxDataSize" config parameter
+ Thanks to Nathan Brown for the patch.
+- multiple modules: gtls: improve error if certificate file can't be opened
+- omsnare: allow different tab escapes
+ Thanks to Shane P. Lawrence for the patch.
+- omelasticsearch: converted to use libfastjson instead of json-c
+ json-c was used for historical purposes, and it's source included
+ within the rsyslog source tree. We now use libfastjson inside all
+ components.
+- imjournal: _PID fallback
+ * added fallback for _PID property when SYSLOG_PID is not available
+ * introduced new option "usepid" which sets which property should
+ rsyslog use, it has 3 states system|syslog|both, default is both
+ * deprecated "usepidfromsystem" option, still can be used
+ and override the "usepid"
+ * it is possible to revert previous default with usepid="syslog"
+ Thanks to Radovan Sroka for the patch
+- multiple modules: add better error messages when regcomp is failing
+- omhiredis: fix build warnings
+ Thanks to Brian Knox for the fix.
+- imfile bugfix: files mv-ed in into directory were not handled
+ Thanks to Zachary M. Zhao for the patch.
+ see also https://github.com/rsyslog/rsyslog/issues/1588
+- omprog bugfix: execve() incorrectly called
+ this caused failures on some but not all platforms
+ Thanks to 張君天(Chun-Tien Chang) and Matthew Seaman for the patch.
+- imfile bugfix: multiline timeout did not work if state file exists
+ The timeout feature for multiline reads does not correctly work for
+ files for which a state file existed. This is usually the case for files
+ that had been processed by a previous run and that still exist on the
+ new start. For all other files, especially those monitored by a
+ wildcard and newly created after the rsyslog start, timeout worked as
+ expected.
+ closes https://github.com/rsyslog/rsyslog/issues/1445
+- lmsig_ksi-ls12 bugfix: build problems on some platforms
+- core bugfix: invalid object type assertion
+ This lead to aborts due to failing assertion. Note that this could only
+ happen during debugging runs which includes runtime instrumentation,
+ something that never should be done in a stable production build.
+ So this did not affect ordinary users, only developers in with
+ deep debugging settings.
+- regression fix: local hostname was not always detected properly...
+ ... on early start (w/o network). Introduced in 8.27.0.
+ Thanks to github user jvymazal for the patch and whissi for
+ reporting and helping with the analysis.
+- bugfix: format security issues in zmq3 modules
+ see also: https://github.com/rsyslog/rsyslog/pull/1565
+ Thanks to Thomas D. (whissi) for the patch.
+- bugfix build system: add libksi only to those binaries that need it
+ Thanks to Allan Park for the patch.
+- bugfix KSI ls12 components: invalid tree height calculation
+ Thanks to Allan Park for the patch.
+- testbench/CI enhancements
+ * re-enable and add kafka tests
+ Kafka tests were disabled in 8.27.0 (a regression from imkafka).
+ * better testbench coverage for mmdblookup
+ * lmsig_ksi-ls12 is now being built at least on Centos7
+------------------------------------------------------------------------------
+Version 8.27.0 [v8-stable] 2017-05-16
+- imkafka: add module
+- imptcp enhancements:
+ * optionally emit an error message if incoming messages are truncated
+ * optionally emit connection tracking message (on connection create and
+ close)
+ * add "maxFrameSize" parameter to specify the maximum size permitted
+ in octet-counted mode
+ * add parameter "discardTruncatedMsg" to permit truncation of
+ oversize messages
+ * improve octect-counted mode detection: if the octet count is larger
+ then the set frame size (or overly large in general), it is now
+ assumed that octet-stuffing mode is used. This probably solves a
+ number of issues seen in real deployments.
+- imtcp enhancements:
+ * add parameter "discardTruncatedMsg" to permit truncation of
+ oversize messages
+ * add "maxFrameSize" parameter to specify the maximum size permitted
+ in octet-counted mode
+- imfile bugfix: "file not found error" repeatedly being reported
+ for configured non-existing file. In polling mode, this message
+ appeared once in each polling cycle, causing a potentially very large
+ amount of error messages. Note that they were usually emitted too
+ infrequently to trigger the error message rate limiter, albeit often
+ enough to be a major annoyance.
+- imfile: in inotify mode, add error message if configured file cannot
+ be found
+- imfile: add parameter "fileNotFoundError" to optionally disable
+ "file not found" error messages
+- core: replaced gethostbyname() with getaddrinfo() call
+ Gethostbyname() is generally considered obsolete, is not reentrant and
+ cannot really work with IPv6. Changed the only place in rsyslog where
+ this call remained.
+ Thanks to github user jvymazal for the patch
+- omkafka: add "origin" field to stats output
+ See also https://github.com/rsyslog/rsyslog/issues/1508
+ Thanks to Yury Bushmelev for providing the patch.
+- imuxsock: rate-limiting also uses process name
+ both for the actual limit processing as well as warning messages emitted
+ see also https://github.com/rsyslog/rsyslog/pull/1520
+ Thanks to github user jvymazal for the patch
+- Added new module: KSI log signing ver. 1.2 (lmsig_ksi_ls12)
+- rsyslog base functionality now builds on osx (Mac)
+ Thanks to github user hdatma for his help in getting this done.
+- build now works on solaris again
+- imfile: fix cross-platform build issue
+ see also https://github.com/rsyslog/rsyslog/issues/1494
+ Thanks to Felix Janda for bug report and solution suggestion.
+- bugfix core: segfault when no parser could parse message
+ This could happen if the default parser chain was changed and the
+ RFC3164 parser was not included. Never seen in practice, just by
+ experimenting in lab.
+- bugfix core: rate-limit internal messages when going to external log system
+ Rate-limiting was only applied to messages processed internally.
+ While the external logging system probably also applies rate-limiting,
+ it would be preferable that rsyslog applies the same policies on
+ internal messages, no matter where they go. This is now the case.
+- bugfix core: when obtaining local hostname, a NULL pointer could be
+ accessed. This depends on many factors, among them that no local host
+ name is configured in rsyslog.conf AND the local system configuration
+ also is set to an empty hostname.
+ Thanks to github user jvymazal for the patch.
+- bugfix core: on shutdown, stderr was written to, even if already closed
+ This lead to messages going to whatever was associated with file
+ descriptor two.
+ Thanks to Allan Park for the patch.
+- bugfix core: perform MainqObj destruction only when not NULL already
+ This affects the config object; in theory may lead to misaddressing during
+ config parsing.
+ Thanks to github user jvymazal for the patch
+- bugfix core: memory leak when internal messages not processed internally
+ In this case, the message object is not destructed, resulting in
+ a memory leak. Usually, this is no problem due to the low number
+ of internal message, but it can become an issue if a large number
+ of messages is emitted.
+ closes https://github.com/rsyslog/rsyslog/issues/1548
+ closes https://github.com/rsyslog/rsyslog/issues/1531
+- bugfix imptcp: potential overflow in octet count computation
+ when a very large octet count was specified, the counter could overflow
+------------------------------------------------------------------------------
+Version 8.26.0 [v8-stable] 2017-04-04
+- NEW BUILD REQUIREMENT: liblognorm 2.0.3 is required for mmnormalize
+ If mmnormalize is not built, the build requirements are unchanged.
+ The new version is necessary because it contains an enhanced API for a
+ new mmnormalize feature.
+- enable internal error messages at all times
+ This is an important change to the design of the rsyslog core internal
+ error message system. Previous code could deadlock if internal messages were
+ issued inside queue processing code, which effectively limited error-reporting
+ capabilities. This change makes it possible to call error messages from any
+ part of the code at any time.
+ As a side-effect, this also fixes an issue where rsyslog could deadlock if
+ imuxsock submited messages to the system log socket when that socket blocked.
+ This was a rare race, albeit consistently reproducible and also seen in
+ practice. The work-around for this issue was to set
+ global(processInternalMessages="on")
+ in rsyslog.conf. With the new code, this race can never happen again. The new
+ code also sets stage for emitting better error messages, especially in places
+ where we previously refrained from doing so and messages went only to the
+ debug log. For some file output and queue subsystem related messages, this
+ is already done, but there is still further work required.
+ Note well: this is a redesign of an important core component. While intensely
+ tested, this may still have some larger regression potential than usual code
+ changes.
+- core: added logging name of source of rate-limited messages
+ This adds the name to the rate-limiting message itself, making it easier
+ to identify the actual source of "spam" messages.
+ Thanks to github user jvymazal for the patch.
+- omfwd: omfwd: add support for network namespaces
+ Thanks to Bastian Stender for the patch.
+- imrelp: honor input name if provided when submitting to impstats
+ Thanks to Jon Henry for the patch.
+- imptcp: add ability to set owner/group/access perms for uds
+ Thanks to Nathan Brown for implementing this feature.
+- mmnormalize: add ability to load a rulebase from action() parameter
+ This is especially useful for small rulebases, as it avoids having
+ a separate rulebase file.
+ closes https://github.com/rsyslog/rsyslog/issues/625
+- pmrfc3164 improvements
+ - permit to ignore leading space in MSG
+ - permit to use at-sign in host names
+ - permit to require tag to end in colon
+ Thanks to github user bdolez for the contribution
+- add new global parameter "umask"
+ This is equivalent to "$umask" and permits to convert that construct
+ to new-style config format.
+ closes https://github.com/rsyslog/rsyslog/issues/1382
+- core: make use of -T command line option more secure
+ When the -T option is used, a chdir is now done right after chroot. It must
+ be noted, though, that -T is a testing option and has no intent to provide
+ real security. So this change does not mean it actually is sufficiently
+ secure.
+ Thanks to github user jvymazal for the patch.
+- omfile: add error if both file and dynafile are set
+- bugfix: build problem on MacOS (not a supported platform)
+ Thanks to FX Coudert for the fix.
+- regression fix: in 8.25, str2num() returned error on empty string
+ past behavior was to return 0 in this case; past behavior was reinstantiated
+ Thanks to github user jvymazal for the patch.
+- bugfix omsnmp: improper handling of new-style configuration parameters
+ Thanks to Radovan Sroka for the patch.
+- bugfix: rsyslog identifies itself as "liblogging-stdlog" in internal messages
+ This occurred when liblogging-stdlog was used, and was used by default (without
+ explicit configuration). This is a regression of the new default, which does
+ not correctly call stdlog_open() in the default case.
+ closes https://github.com/rsyslog/rsyslog/issues/1442
+- bugfix imfile: wrong files were monitored when using multiple imfile inputs
+ The bug was introduced by the changes for the multilevel wildcard feature
+ in 8.25.0. We have to handle FileCreate events different if the directory
+ watch is configured or added dynamically.
+ closes https://github.com/rsyslog/rsyslog/issues/1452
+- bugfix: setting net.aclResolveHostname/net.acladdhostnameonfail segfaults
+ When compiling using hardened gcc (gentoo), specifying net.aclResolveHostname
+ or net.acladdhostnameonfail results in rsyslogd segfaulting on startup.
+ Thanks to Radovan Sroka for the patch.
+- bugfix: immark emitted error messages with text "imuxsock"
+ Thanks to Chris Pilkington for the patch.
+- bugfix tcpflood: build failed if RELP was disabled
+- fix gcc6 compiler warnings
+ This also fixes a small bug with incorrectly working deprecated -u
+ command line option.
+ Thanks to Nikola Pajkovsky for the patch.
+- the output module array passing interface has been removed
+ It wasn't functional since the v8 update, and the only user was omoracle,
+ which is a contributed module that is no longer maintained. So we
+ removed that interface to streamline the code. Should it ever be needed
+ again, we could check the 8.25 code base. Note, though, that that code
+ still needs to be adjusted to the v8 engine.
+- testbench:
+ * tcpflood now automatically enters silent mode during Travis CI testing
+ This reduces testbench output, which is limited under Travis.
+ * the libqpid-proton package is no longer available for Ubuntu trusty. As
+ such, we disabled its use in Travis on this platform. Right now, this
+ means omamqp1 module is no longer tested on trusty.
+------------------------------------------------------------------------------
+Version 8.25.0 [v8-stable] 2017-02-21
+- imfile: add support for wildcards in directory names
+ This now permits to monitor newly created directories without altering
+ the configuration.
+- add new global option "parser.PermitSlashInProgramname"
+- mmdblookup: fix build issues, code cleanup
+ Thanks to Dan Molik for the patch.
+- improved debug output for queue corruption cases
+- an error message is now displayed when a directory owner cannot be set
+ This mostly happens with omfile and dynafile. The new messages
+ facilitates troubleshooting.
+- rainerscript:
+ * add new function ipv42num
+ * add new function num2ipv4
+- bugfix: ratelimiter does not work correctly is time is set back
+ Thanks to github user hese10 for the patch.
+ see also https://github.com/rsyslog/rsyslog/issues/1354
+- core: fix potential message loss in old-style transactional interface
+ This was experienced for example by omrelp. Could loose one message per
+ broken connection, iff that message did not make it to the unacked list.
+- bugfix queue subsystem: queue corrupted if certain msg props are used
+ The core issues was in the msg object deserializer, which had the wrong
+ deserialization sequence. That in turn lead to queue corruption issues.
+ Corruption of disk queue (or disk part of DA queue) always happens if
+ the "json" property (message variables) is present and "structured-data"
+ property is also present. This causes rsyslog to serialize to the
+ queue in wrong property sequence, which will lead to error -2308 on
+ deserialization.
+ Seems to be a long-standing bug. Depending on version used, some or
+ all messages in disk queue may be lost.
+ closes https://github.com/rsyslog/rsyslog/issues/1404
+- bugfix imjournal: fixed situation when time goes backwards
+ This is resolving the situation when system is after reboot and
+ boot_id doesn't match so cursor pointing into "future".
+ Usually sd_journal_next jump to head of journal due to journal
+ approximation, but when system time goes backwards and cursor is
+ still invalid, rsyslog stops logging.
+ We use sd_journal_get_cursor to validate our cursor.
+ When cursor is invalid we are trying to jump to the head of journal
+ This problem with time should not affect persistent journal,
+ but if cursor has been intentionally compromised it could stop
+ logging even with persistent journal.
+- bugfix: bFlushOnTxEnd == 0 not honored when writing w/o async writer
+ If bFlushOnTXEnd is set, we need to flush on transaction end - in
+ any case. It is not relevant if this is using background writes
+ (which then become pretty slow) or not. And, similarly, no flush
+ happens when it is not set.
+ see also https://github.com/rsyslog/rsyslog/issues/1297
+- bugfix core: str2num mishandling empty strings
+ If str2num() receives an empty string, misaddressing happens.
+ This theoretically can lead to a segfault if a RainerScript function
+ is used inside the configuration which calls code that could trigger
+ this bug.
+ closes https://github.com/rsyslog/rsyslog/issues/1412
+- bugfix rainerscript: set/unset statement do not check variable name validity
+ Only JSON-based variables can be use with set and unset. Unfortunately,
+ this restriction is not checked. If an invalid variable is given
+ (e.g. $invalid), this is not detected upon config processing on
+ startup. During execution phase, this can lead to a segfault, a
+ memory leak or other types of problems.
+ Thanks to github user mostolog for reporting and helping to analyze
+ this issue.
+ see also https://github.com/rsyslog/rsyslog/issues/1376
+ closes https://github.com/rsyslog/rsyslog/issues/1377
+- bugfix mmrm1stspace: last character of rawmsg property was doubled
+- bugfix: rsyslog loops on freebsd when trying to write /dev/console
+ Rsyslog 8.23.0 loops on FreeBSD when trying to access a (now revoked)
+ /dev/console file descriptor, as per Alexandre's original bug report [1].
+ The original patch fixes the problem when tryTTYRecover() sees errno 6 ENXIO.
+ Running FreeBSD 10-stable here and getting errno 5 EIO, same as Xavier gets
+ in his 2016 bug report [2].
+ New patch [3] includes errno 5 to tryTTYRecover() in runtime/stream.c and
+ fixes the problem for me, on multiple machines.
+ [1] https://github.com/rsyslog/rsyslog/issues/371
+ [2] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211033
+ [3] https://bz-attachments.freebsd.org/attachment.cgi?id=178452
+ closes https://github.com/rsyslog/rsyslog/issues/1351
+ Thanks to Damien Fleuriot for the patch.
+- bugfix imtcp: fix very small (cosmetic) memory leak
+ For each listener, the name of an assigned ruleset is not freed. This
+ is cosmetic, because it is a very small static leak AND it needs to
+ be kept until end of run anyways (and at end of run the OS frees it).
+ However, the leak breaks memleak checks in the testbench.
+- fix build issues on some platforms (detected on newer Fedora)
+------------------------------------------------------------------------------
+Version 8.24.0 [v8-stable] 2017-01-10
+- rsyslog now builds on AIX
+ see also: https://github.com/rsyslog/rsyslog/pull/1247
+ Thanks to github user purnimam1 and the team at IBM
+ Note: the rsyslog project has no AIX platform to ensure that future versions
+ will remain buildable on AIX. If you would like to contribute resources,
+ please contact the rsyslog team.
+- mmdblookup: new maxminddb lookup message modify plugin
+ Thanks to 饶琛琳 (github user chenryn) for the contribution
+- mmrm1stspace: new module; removes first space in MSG if present
+- KSI signature provider: file permissions can now be specified
+ This happens via parameters equal to those used by omfile itself.
+ Note that KSI files can have different permissions/owner than the log
+ files themself.
+ Thanks to Allan Park for the patch.
+- omzmq: new features
+ Thanks to Brian Knox for the patch.
+- change: when the hostname is empty, we now use "localhost-empty-hostname"
+ In 8.23.0, "localhost" was used in this case, but that could be misleading.
+ The new name makes the error condition (gethostname() should always return
+ a non-empty name) more obvious.
+- omelasticsearch: remove "asyncrepl" config parameter
+ The _bulk index endpoint on ElasticSearch 5.0 no longer
+ ignores the ?replication=async query parameter. It was deprecated
+ since 1.5 and silently ignored in 2.x but passing it to a 5.x
+ instance breaks omelasticsearch with a 400 response.
+ closes https://github.com/rsyslog/rsyslog/issues/1250
+- omfwd: Add support for bind-to-device (see below on same for imudp)
+- imudp: Add support for bind-to-device
+ Add support for bind-to-device option to omfwd and imudp modules.
+ Configured using device="name". Only new syntax format is supported.
+ e.g.,
+ input(type="imudp" port=["10514"] device="eth0" name="udp")
+ Action(type="omfwd" Target="192.168.1.23" Port="10514" Device="eth0")
+ see also https://github.com/rsyslog/rsyslog/pull/1261
+ Thanks to David Ahern for the patch.
+- imudp: limit rcvbufsize parameter to max 1GiB
+- rainerscript: implement new "call_indirect" statement
+- bugfix imjournal: make state file handling more robust
+ There is a bug in rsyslog which is caused by not very atomic writes of
+ imjournal statefile. It's hardly reproducible but there is a way.
+ fscanf error appears only when rsyslog reads an empty statefile which
+ causes that imjournal is stopped so no logging from journal is
+ performed. When the statefile contains random bytes error appears
+ again but from journal and imjournal is stopped too.
+ In this patch Rsyslog writes imjournal statefile more atomically and
+ secure. Reading the statefile is more robust and doesn't affect
+ imjournal module so when corrupted statefile is read imjournal
+ ignores statefile, continues with logging and it doesn't stop. Logger
+ can be used as a test if it's logging or not.
+ Patch introduces a new option with both old and new config format
+ "IgnoreNonValidStateFile" which is "on" by default and it can turn
+ off ignorance of non valid statefile.
+ Thanks to github user tomassykora for the patch.
+- bugfix core: lookup table reload was not properly integrated
+ The opcode was not handled, what lead to misleading messages
+ in debug log. Since we run debug builds more strictly, it also
+ causes an assertion to trigger, thus aborting the test
+- bugfix core: potential deadlock on shutdown
+ could happen when rsyslog was started and quickly shut down OR when
+ coincidentally a new thread was spawend "with bad timing" around the time
+ of shutdown.
+ See also https://github.com/rsyslog/rsyslog/pull/1274
+ Thanks to github user tomassykora for the final patch and Rado Sroka for
+ the analysis and an initial patch.
+- bugfix ommongodb: did not work in v8 due to invalid indirection
+ Thanks to Benoit Dolez for the patch.
+- bugfix ommongodb: fix tryResume handling
+ To make tryResume working, the connection to mongodb need to be closed.
+ Thus close it on "insert error".
+ Thanks to Benoit Dolez for the patch.
+- bugfix omfwd: retry processing was not done correctly, could stall
+ see also https://github.com/rsyslog/rsyslog/pull/1261
+ Thanks to David Ahern for the patch.
+- bugfix imuxsock: segfault non shutdown when $OmitLocalLogging is on
+ Imuxsock tries to close socket on index 0 which ends with segfault.
+ Thanks to Tomas Sykora for the patch.
+- testbench:
+ * empty-hostname test did not work correctly
+ * improve debugging by better output
+------------------------------------------------------------------------------
+Version 8.23.0 [v8-stable] 2016-11-15
+- NEW BUILD REQUIREMENT: libfastjson 0.99.3
+ This was introduced in 8.20.0 as a suggestion and has now become a hard
+ requirement. See 8.20.0 ChangeLog entry for more details.
+- KSI signatures: removed SHA2-224 hash algorithm
+ This is considered insecure and no longer supported by the underlying
+ KSI library. If still used within a configuration, a descriptive error
+ message is emitted during config processing.
+ Thanks to Henri Lakk for the initial patch.
+- imfile: new timeout feature for multi-line reads
+ When using startmsg.regex, messages are held until the next one is written.
+ We now provide a "readTimeout" parameter family (see doc) to timeout such
+ reads and ensure messages are not held for a very long time.
+ see also https://github.com/rsyslog/rsyslog/issues/1133
+- omfile: improve robustness against network file system failures
+ in case of failure, a close and re-open is tried, which often solves the
+ issue (and wasn't handle before this patch).
+ see also https://github.com/rsyslog/rsyslog/pull/1161
+ Thanks to github user hese10 for the patch.
+- pmaixforwardedfrom: support for AIX syslogd -s option
+ if syslog in AIX started with "-s" option, AIX syslog adds only "From "
+ instead of "Message forwarded from ". With this patch, both are now
+ detected.
+ Thanks to github user patelritesh for the patch.
+- omelasticsearch: add ability to specify max http request size
+ This permits to keep batches below ES-configured limits.
+ Thanks to github user barakshechter for the patch.
+- omelasticsearch: high availability addressing of ElasticSearch cluster
+ allow one to specify an array of servers, which is tried until a working
+ one is found (and given up only if none works).
+ Thanks to github user barakshechter for the patch.
+- omelasticsearch: make compatible with ElasticSearch 2.x and 5.x
+ fixes omelasticsearch logs response from ElasticSearch 5.0 _bulk
+ endpoint as error
+ See also https://github.com/rsyslog/rsyslog/pull/1253
+ Thanks to Christian Rodemeyer for the patch.
+- omhiredis: add dynakey attribute.
+ If set to on, this causes omhiredis to treat the key attribute as the
+ name of a template so that you can build a dynamic redis queue name
+ or list key.
+ see also: https://github.com/rsyslog/rsyslog/pull/1218
+ Thanks to github user bobthemighty for the patch
+- omtcl: new contributed module
+ see also https://github.com/rsyslog/rsyslog/pull/1041
+ Please note: contributed modules are not directly supported by the
+ project. You might want to contact the author for questions.
+ Thanks to Francisco Castro for contributing it.
+- RainerScript: provide a capability to set environment variables
+ via 'global(environment="var=val")' config statement.
+ This is most importantly for things like HTTP_PROXY.
+ see also https://github.com/rsyslog/rsyslog/issues/1209
+- lookup tables: improved error checking
+ Thanks to Janmejay Singh for the patch.
+- queue subsystem: add configuration parameter "queue.samplinginterval"
+ Supports sampling of messages (as often used in data transmission).
+ Thanks to Zachary M. Zhao for the patch.
+- bugfix core: errmsg.LogError now switches to dfltErrLogger just before shutdown
+ Thanks to Janmejay Singh for the patches.
+- bugfix core: fixed un-freed memory in non-transactional action using string-passing
+ closes https://github.com/rsyslog/rsyslog/issues/968
+ Thanks to Janmejay Singh for the patches.
+- rsgtutil: option to specify KSI publications file certificate constraints
+ see also https://github.com/rsyslog/rsyslog/issues/1207
+- omprog: bugfixes and enhancements
+ - omprog resource leak fix (fd leak)
+ - omprog got ability to force-kill process if it doesn't die in 5 seconds
+ (linux specific)
+ - child-process lifecycle debugging aid (in form of logs) (mainLoop and
+ omprog cleanup both log pid at child-death, mainLoop reaping is now
+ visible to user, as opposed to being a mystery, because omprog didn't
+ seem to anticipate it in terms of code)
+ Thanks to Janmejay Singh for the patches.
+ see also https://github.com/rsyslog/rsyslog/pull/1155
+- bugfix imfile: ReopenOnTruncate processing, file open processing
+ This fixes
+ * ReopenOnTruncate was only honored when a state file existed
+ see https://github.com/rsyslog/rsyslog/issues/1090
+ * open processing could run into a loop
+ see https://github.com/rsyslog/rsyslog/issues/1174
+ This is done via refactoring the open file handling, which provides
+ overall cleaner and easier-to-follow code.
+ Thanks to Owen Smith for analyzing the problem and providing a
+ prototype PR which greatly helped towards the final solution.
+- bugfix omlibdbi: libdbi-driver-sqlite3/2 requires to provide a path to
+ database split into two strings:
+ * absolute path, where the database file sits
+ * database filename itself.
+ This was previously not done.
+ Thanks to github user aleek for the patch.
+- bugfix RainerScript: issue in prifilt() function
+ Initialize func-data(and to-be-freed flag) correctly for prifilt
+ function-node
+ Thanks to Janmejay Singh for the patch.
+- bugfix omrelp: invalid module name imrelp was used in some error messages
+ Thanks to Chris Pilkington for the patch.
+- bugfix core: abort when persisting object state
+ This causes a segfault. It happens whenever an object state larger
+ than 4095 byte is persisted. Then, incorrectly a try to rollover to
+ a new state file is tried, which will lead to a division by zero
+ as the necessary variables for this operation are not set because we
+ are NOT in circular mode.
+ This problem can happen wherever state files are written. It has been
+ experienced with imfile and queue files.
+ Many thanks to github user mostolog for his help in reproducing the issue,
+ which was very important to finally nail down this long-standing bug.
+ closes https://github.com/rsyslog/rsyslog/issues/1239
+ closes https://github.com/rsyslog/rsyslog/issues/1162
+ closes https://github.com/rsyslog/rsyslog/issues/1074
+- bugfix: segfault if hostname is unset on system
+ happens when gethostname() returns empty string. This will cause
+ the createon of the localhostname prop_t to fail, which in turn
+ leads to a NULL pointer dereference when emitting local messages.
+ As we emit a startup message by default, this had usually lead
+ to a segfault on startup.
+ Thanks to Erik Potter and github user mostolog for their help
+ in analyzing this problem.
+ closes https://github.com/rsyslog/rsyslog/issues/1040
+ closes https://github.com/rsyslog/rsyslog/issues/335
+- bugfix external module perl skeleton: did not work properly
+ Thanks to github user Igorjan666 for the patch.
+- bugfix build system: Fix detection of pthread_setschedparam() on platforms
+ such as FreeBSD
+ see also https://github.com/rsyslog/rsyslog/pull/1147
+ Thanks to Matthew Seaman for the patch.
+- bugfix omelasticsearch: modifies constant memory under some circumstances
+ Function computeBaseUrl may modify its serverParam parameter, but
+ this may contain the constant string "localhost". Depending on the
+ platform, this can lead to a segfault.
+ Noticed while working on compiler warnings, not seen in practice.
+- "bugfix": theoretical queue file corruption when more than MAX_INT files
+ closes https://github.com/rsyslog/rsyslog/issues/1202
+- bug fix/KSI: LOGSIG11 missing in the beginning of KSI log signature file
+ When logging with KSI is not working properly for whatever reason, an
+ empty .ksisig file is created (which by itself is not an issue). However,
+ later it looks like this file is re-used, but it is not checked whether it
+ already contains the magic LOGSIG11 in the beginning of the file. This leads
+ to a log signature file which has correct content but is missing the
+ LOGSIG11 magic in the beginning.
+- bugfix template processor: missing escaping of backslash in json mode
+ Thanks to github user mostolog for providing the patch.
+- build environment: --enable-debug now defaults to new "auto" mode
+ previously, DEBUG mode (and thus assert() macros) was disabled by default
+ and explicitly needed to be enabled by providing the --enable-debug
+ ./configure switch. Now, a new --enable-debug=auto mode has been added
+ and made the default. It enables DEBUG mode if we build from git and only
+ disables it when a release build is done (from the release tarball). This
+ aims at better error checking during testbench runs and developer testing.
+- testbench improvements
+ * improved testbench file generation tool
+ Thanks to Pascal Withopf for the patch.
+ * added some plumbing for extended tests which work by overriding OS APIs
+ * imfile ReopenOnTruncate option is now being tested
+ * the CI environment now runs most tests in debug mode, but some in
+ release mode to cover potential release-mode races
+ * template json option is now being tested
+ * object state persisting received a basic test
+ * added test for empty hostnames
+ * added tests for omprog
+------------------------------------------------------------------------------
+Version 8.22.0 [v8-stable] 2016-10-04
+- ompgsql: add template support
+ Thanks to Radu Gheorghe for implementing this.
+- generate somewhat better error message on config file syntax error
+ a common case (object at invalid location) has received it's own error
+ message; for the rest we still rely on the generic flex/bison handler
+- bugfix:omhiredis reconnects after failure
+ previously it could loose messages under such conditions.
+ Thanks to Bob Gregory for the patch.
+- general cleanup and code improvement
+ mostly guided by compiler warnings induced by newer opensuse buildbot
+ environment
+------------------------------------------------------------------------------
+Version 8.21.0 [v8-stable] 2016-08-23
+- CHANGE OF BEHAVIOR:
+ by default, internal messages are no longer logged via the internal
+ bridge to rsyslog but via the syslog() API call [either directly or
+ via liblogging). For the typical single-rsyslogd-instance installation this
+ is mostly unnoticeable (except for some additional latency). If multiple
+ instances are run, only the "main" (the one processing system log messages)
+ will see all messages. To return to the old behavior, do either of those
+ two:
+ 1) add in rsyslog.conf:
+ global(processInternalMessages="on")
+ 2) export the environment variable RSYSLOG_DFLT_LOG_INTERNAL=1
+ This will set a new default - the value can still be overwritten via
+ rsyslog.conf (method 1). Note that the environment variable must be
+ set in your **startup script**.
+ For more information, please visit
+ https://www.rsyslog.com/rsyslog-error-reporting-improved/
+- slightly improved TLS syslog error messages
+- queue subsystem: improved robustness
+ The .qi file is now persisted whenever an existing queue file is fully
+ written and a new file is begun. This helps with rsyslog aborts, including
+ the common case where the OS issues kill -9 because of insufficiently
+ configured termination timeout (this is an OS config error, but a frequent
+ one). Also, a situation where an orphaned empty file could be left in the
+ queue work directory has been fixed. We expect that this change causes
+ fewer permanent queue failures.
+- bugfix: build failed on some platforms due to missing include files
+------------------------------------------------------------------------------
+Version 8.20.0 [v8-stable] 2016-07-12
+- NEW BUILD REQUIREMENT: librelp, was 1.2.5, now is 1.2.12
+ This is only needed if --enable-relp is used. The new version is needed
+ to support the new timeout parameter in omrelp.
+- NEW BUILD SUGGESTION: libfastjson 0.99.3
+ while not strictly necessary, previous versions of libfastjson have a bug
+ in unicode processing that can result in non US-ASCII characters to be
+ improperly encoded and may (very unlikely) also cause a segfault.
+ This version will become mandatory in rsyslog 8.23.0
+- omrelp: add configurable connection timeout
+ Thanks to Nathan Brown for implementing this feature.
+- pmrfc3164: add support for slashes in hostname
+ added parameter "permit.slashesinhostname" to support this, off by default
+ [Note that the RFC5424 always supported this, as 5424 is a different
+ standard]
+- bugfix omfile: handle chown() failure correctly
+ If the file creation succeeds, but chown() failed, the file was
+ still writen, even if the user requested that this should be treated
+ as a failure case. This is corrected now.
+ Also, some refactoring was done to create better error messages.
+- omfile now better conveys status of unwritable files back to core
+- config files recursively including themselves are now detected
+ and an error message is emitted in that case; Previously, this
+ misconfiguration resulted in rsyslog loop and abort during startup.
+ closes https://github.com/rsyslog/rsyslog/issues/1058
+- refactored code to not emit compiler warnings in "strict mode"
+ We changed the compiler warning settings to be rather strict and cleaned up
+ the code to work without generating any warning messages.
+ This results in an overall even more improved code quality, which will now
+ also be enforced via our CI systems.
+- bugfix: fix some issues with action CommitTransaction() handling
+ An action that returns an error from CommitTransaction() caused a
+ loop in rsyslog action processing. Similarly, retry processing was not
+ properly handled in regard to CommitTransaction().
+ This is a first shot at fixing the situation. It solves the
+ immediate problems, but does not implement the full desired
+ functionality (like error file).
+ see also https://github.com/rsyslog/rsyslog/issues/974
+ see also https://github.com/rsyslog/rsyslog/issues/500
+- bugfix omqmqp1: connecting to the message bus fails on nonstandard port
+ Thanks to Ken Giusti for the patch.
+ see also: https://github.com/rsyslog/rsyslog/pull/1064
+- testbench/CI enhancements
+ * new tests for RELP components
+ * new tests for core action processing and retry
+ * travis tests now also run against all unstable versions of supporting
+ libraries. This helps to track interdependency problems early.
+ * new tests for hostname parsing
+ * new tests for RainerScript comparisons
+------------------------------------------------------------------------------
+Version 8.19.0 [v8-stable] 2016-05-31
+- NEW BUILD REQUIREMENT: autoconf-archive
+- omelasticsearch: add option to permit unsigned certs (experimentally)
+ This adds plumbing as suggested by Joerg Heinemann and Radu Gheorghe,
+ but is otherwise untested. Chances are good it works. If you use it,
+ please let us know your experience and most importantly any bug
+ reports you may have.
+ closes https://github.com/rsyslog/rsyslog/issues/89
+- imrelp: better error codes on unavailability of TLS options
+ Most importantly, we will tell the user in clear words if specific TLS
+ options are not available due to too-old GnuTLS.
+ closes https://github.com/rsyslog/rsyslog/issues/1019
+- default stack size for inputs has been explicitly set to 4MiB
+ for most platforms, this means a reduction from the default of 10MiB, however
+ it may mean an increase for micro-libc's (some may have as low as 80KiB by
+ default).
+- testbench: We are now using libfaketime instead of faketime command line
+ tool. Make sure you have installed the library and not just the binary!
+- refactor stringbuf
+ * use only a single string buffer
+ ... both for the internal representation as well as the C-String one.
+ The module originally tried to support embedded NUL characters, which
+ over time has proven to be not necessary. Rsyslog always encodes
+ NUL into escape sequences.
+ Also, the dual buffers were used inconsistently, which could lead to
+ subtle bugs. With the single buffer, this does no longer happen and
+ we also get some improved performance (should be noticeable)
+ and reduced memory use (a bit).
+ closes https://github.com/rsyslog/rsyslog/issues/1033
+ * removed no longer used code
+ * internal API changes to reflect new needs
+ * performance improvements
+ * miscellaneous minor cleanup
+- fix: potential misaddressing in template config processing
+ This could cause segfault on startup. Happens when template name shorter
+ than two chars and outname is not set. Once we are over startup, things
+ work reliably.
+- bugfix omfile: async output file writing does not respect flushing
+ neither parameter flushInterval nor flushOnTXEnd="on" was respected.
+ closes https://github.com/rsyslog/rsyslog/issues/1054
+- bugfix imfile: corrupted multi-line message when state data was persisted
+ see also https://github.com/rsyslog/rsyslog/issues/874
+ Thanks to Magnus Hyllander for the analysis and a patch suggestion.
+- bugfix imfile: missing newline after first line of multiline message
+ see also https://github.com/rsyslog/rsyslog/issues/843
+ Thanks to Magnus Hyllander for the patch.
+- bugfix: dynstats unusedMetricTtl bug
+ Thanks to Janmejay Singh for fixing this.
+- bugfix build system: build was broken on SunOS
+ Thanks to Filip Hajny for the patch.
+- bugfix: afterRun entry point not correctly called
+ The entry point was called at the wrong spot, only when the thread
+ had not already terminated by itself. This could cause various
+ cleanup to not be done. This affected e.g. imjournal.
+ closes https://github.com/rsyslog/rsyslog/issues/882
+- bugfix dynstats: do not leak file handles
+ Thanks to Janmejay Singh for the patch.
+- bugfix omelasticsearch: disable libCURL signal handling
+ previously, this could lead to segfaults on connection timeout
+ see also https://github.com/rsyslog/rsyslog/pull/1007
+ Thanks to Sai Ke WANG for the patch.
+- bugfix omelasticsearch: some regressions were fixed
+ * error file was no longer written
+ * fix for some potential misaddressings
+- improved wording: gnutls error message points to potential cause
+ What GnutTLS returns us is very unspecific and somewhat misleading, so
+ we point to what it most probably is (broken connect).
+ see also https://github.com/rsyslog/rsyslog/issues/846
+- some general code improvements
+ * "fixed" cosmetic memory leaks at shutdown
+- build system bugfix: configure can't find gss_acquire_cred on Solaris
+ Thanks to github user vlmarek for the patch.
+- improvements to the CI environment
+ * improvements on the non-raciness of some tests
+ * imdiag: avoid races in detecting queue empty status
+ This resolves cases where the testbench terminated rsyslog too early,
+ resulting in potential message loss and test failure.
+ * omkafka has now dynamic tests
+ Thanks to Janmejay Singh for implementing them.
+ * try to merge PR to master and run tests; this guards against cross-PR
+ regressions and wasn't caught previously. Note that we skip this test
+ if we cannot successfully merge. So this is not a replacement for a
+ daily full "all-project integration test run".
+ * travis has finally enabled elasticsearch tests
+ ES was unfortunately not being regularly tested for quite a while due to
+ missing environment. This lead to some regressions becoming undetected.
+ These were now discovered thanks to the new support on travis. Also, this
+ guards against future regressions.
+ * imfile has now additional tests and overall better coverage
+ * omfile has now additional tests
+------------------------------------------------------------------------------
+Version 8.18.0 [v8-stable] 2016-04-19
+- testbench: When running privdrop tests testbench tries to drop
+ user to "rsyslog", "syslog" or "daemon" when running as root and
+ you don't explicit set RSYSLOG_TESTUSER environment variable.
+ Make sure the unprivileged testuser can write into tests/ dir!
+- templates: add option to convert timestamps to UTC
+ closes https://github.com/rsyslog/rsyslog/issues/730
+- omjournal: fix segfault (regression in 8.17.0)
+- imptcp: added AF_UNIX support
+ Thanks to Nathan Brown for implementing this feature.
+- new template options
+ * compressSpace
+ * date-utc
+- redis: support for authentication
+ Thanks to Manohar Ht for the patch
+- omkafka: makes kafka-producer on-HUP restart optional
+ As of now, omkafka kills and re-creates kafka-producer on HUP. This
+ is not always desirable. This change introduces an action param
+ (reopenOnHup="on|off") which allows user to control re-cycling of
+ kafka-producer.
+ It defaults to on (for backward compatibility). Off allows user to
+ ignore HUP as far as kafka-producer is concerned.
+ Thanks to Janmejay Singh for implementing this feature
+- imfile: new "FreshStartTail" input parameter
+ Thanks to Curu Wong for implementing this.
+- omjournal: fix libfastjson API issues
+ This module accessed private data members of libfastjson
+- ommongodb: fix json API issues
+ This module accessed private data members of libfastjson
+- testbench improvements (more tests and more thorough tests)
+ among others:
+ - tests for omjournal added
+ - tests for KSI subsystem
+ - tests for privilege drop statements
+ - basic test for RELP with TLS
+ - some previously disabled tests have been re-enabled
+- dynamic stats subsystem: a couple of smaller changes
+ they also involve the format, which is slightly incompatible to
+ previous version. As this was out only very recently (last version),
+ we considered this as acceptable.
+ Thanks to Janmejay Singh for developing this.
+- foreach loop: now also iterates over objects (not just arrays)
+ Thanks to Janmejay Singh for developing this.
+- improvements to the CI environment
+- enhancement: queue subsystem is more robst in regard to some corruptions
+ It is now detected if a .qi file states that the queue contains more
+ records than there are actually inside the queue files. Previously this
+ resulted in an emergency switch to direct mode, now the problem is only
+ reported but processing continues.
+- enhancement: Allow rsyslog to bind UDP ports even w/out specific
+ interface being up at the moment.
+ Alternatively, rsyslog could be ordered after networking, however,
+ that might have some negative side effects. Also IP_FREEBIND is
+ recommended by systemd documentation.
+ Thanks to Nirmoy Das and Marius Tomaschewski for the patch.
+- cleanup: removed no longer needed json-c compatibility layer
+ as we now always use libfastjson, we do not need to support old
+ versions of json-c (libfastjson was based on the newest json-c
+ version at the time of the fork, which is the newest in regard
+ to the compatibility layer)
+- new External plugin for sending metrics to SPM Monitoring SaaS
+ Thanks to Radu Gheorghe for the patch.
+- bugfix imfile: fix memory corruption bug when appending @cee
+ Thanks to Brian Knox for the patch.
+- bugfix: memory misallocation if position.from and position.to is used
+ a negative amount of memory is tried to be allocated if position.from
+ is smaller than the buffer size (at least with json variables). This
+ usually leads to a segfault.
+ closes https://github.com/rsyslog/rsyslog/issues/915
+- bugfix: fix potential memleak in TCP allowed sender definition
+ depending on circumstances, a very small leak could happen on each
+ HUP. This was caused by an invalid macro definition which did not rule
+ out side effects.
+- bugfix: $PrivDropToGroupID actually did a name lookup
+ ... instead of using the provided ID
+- bugfix: small memory leak in imfile
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: double free in jsonmesg template
+ There has to be actual json data in the message (from mmjsonparse,
+ mmnormalize, imjournal, ...) to trigger the crash.
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: incorrect formatting of stats when CEE/Json format is used
+ This lead to ill-formed json being generated
+- bugfix omfwd: new-style keepalive action parameters did not work
+ due to being inconsistently spelled inside the code. Note that legacy
+ parameters $keepalive... always worked
+ see also: https://github.com/rsyslog/rsyslog/issues/916
+ Thanks to Devin Christensen for alerting us and an analysis of the
+ root cause.
+- bugfix: memory leaks in logctl utility
+ Detected by clang static analyzer. Note that these leaks CAN happen in
+ practice and may even be pretty large. This was probably never detected
+ because the tool is not often used.
+- bugfix omrelp: fix segfault if no port action parameter was given
+ closes https://github.com/rsyslog/rsyslog/issues/911
+- bugfix imtcp: Messages not terminated by a NL were discarded
+ ... upon connection termination.
+ Thanks to Tomas Heinrich for the patch.
+------------------------------------------------------------------------------
+Version 8.17.0 [v8-stable] 2016-03-08
+- NEW REQUIREMENT: libfastjson
+ see also:
+ http://blog.gerhards.net/2015/12/rsyslog-and-liblognorm-will-switch-to.html
+- new testbench requirement: faketime command line tool
+ This is used to generate a controlled environment for time-based tests; if
+ not available, tests will gracefully be skipped.
+- improve json variable performance
+ We use libfastjson's alternative hash function, which has been
+ proven to be much faster than the default one (which stems
+ back to libjson-c). This should bring an overall performance
+ improvement for all operations involving variable processing.
+ closes https://github.com/rsyslog/rsyslog/issues/848
+- new experimental feature: lookup table support
+ Note that at this time, this is an experimental feature which is not yet
+ fully supported by the rsyslog team. It is introduced in order to gain
+ more feedback and to make it available as early as possible because many
+ people consider it useful.
+ Thanks to Janmejay Singh for implementing this feature
+- new feature: dynamic statistics counters
+ which may be changed during rule processing
+ Thanks to Janmejay Singh for suggesting and implementing this feature
+- new contributed plugin: omamqp1 for AMQP 1.0-compliant brokers
+ Thanks to Ken Giusti for this module
+- new set of UTC-based $now family of variables ($now-utc, $year-utc, ...)
+- simplified locking when accessing message and local variables
+ this simplifies the code and slightly increases performance if such
+ variables are heavily accessed.
+- new global parameter "debug.unloadModules"
+ This permits to disable unloading of modules, e.g. to make valgrind
+ reports more useful (without a need to recompile).
+- timestamp handling: guard against invalid dates
+ We do not permit dates outside of the year 1970..2100
+ interval. Note that network-receivers do already guard
+ against this, so the new guard only guards against invalid
+ system time.
+- imfile: add "trimlineoverbytes" input parameter
+ Thanks to github user JindongChen for the patch.
+- ommongodb: add support for extended json format for dates
+ Thanks to Florian Bücklers for the patch.
+- omjournal: add support for templates
+ see also: https://github.com/rsyslog/rsyslog/pull/770
+ Thanks to github user bobthemighty for the patch
+- imuxsock: add "ruleset" input parameter
+- testbench: framework improvement: configs can be included in test file
+ they do no longer need to be in a separate file, which saves a bit
+ of work when working with them. This is supported for simple tests with
+ a single running rsyslog instance
+ Thanks to Janmejay Singh for inspiring me with a similar method in
+ liblognorm testbench.
+- imptcp: performance improvements
+ Thanks to Janmejay Singh for implementing this improvement
+- made build compile (almost) without warnings
+ still some warnings are suppressed where this is currently required
+- improve interface definition in some modules, e.g. mmanon, mmsequence
+ This is more an internal cleanup and should have no actual affect to
+ the end user.
+- solaris build: MAXHOSTNAMELEN properly detected
+- build system improvement: ability to detect old hiredis libs
+ This permits to automatically build omhiredis on systems where the
+ hiredis libs do not provide a pkgconfig file. Previously, this
+ required manual configuration.
+ Thanks to github user jaymell for the patch.
+- rsgtutil: dump mode improvements
+ * auto-detect signature file type
+ * ability to dump hash chains for log extraction files
+- build system: fix build issues with clang
+ clang builds often failed with a missing external symbol
+ "rpl_malloc". This was caused by checks in configure.ac,
+ which checked for specific GNU semantics. As we do not need
+ them (we never ask malloc for zero bytes), we can safely
+ remove the macros.
+ Note that we routinely run clang static analyzer in CI and
+ it also detects such calls as invalid.
+ closes https://github.com/rsyslog/rsyslog/issues/834
+- bugfix: unixtimestamp date format was incorrectly computed
+ The problem happened in leap year from March til then end
+ of year and healed itself at the beginning of the next year.
+ During the problem period, the timestamp was 24 hours too low.
+ fixes https://github.com/rsyslog/rsyslog/issues/830
+- bugfix: date-ordinal date format was incorrectly computed
+ same root cause aus for unixtimestamp and same triggering
+ condition. During the affected perido, the ordinal was one
+ too less.
+- bugfix: some race when shutting down input module threads
+ this had little, if at all, effect on real deployments as it resulted
+ in a small leak right before rsyslog termination. However, it caused
+ trouble with the testbench (and other QA tools).
+ Thanks to Peter Portante for the patch and both Peter and Janmejay
+ Singh for helping to analyze what was going on.
+- bugfix tcpflood: did not handle connection drops correct in TLS case
+ note that tcpflood is a testbench too. The bug caused some testbench
+ instability, but had no effect on deployments.
+- bugfix: abort if global parameter value was wrong
+ If so, the abort happened during startup. Once started,
+ all was stable.
+- bugfix omkafka: fix potential NULL pointer addressing
+ this happened when the topic cache was full and an entry
+ needed to be evicted
+- bugfix impstats: @cee cookie was prefixed to wrong format (json vs. cee)
+ Thanks to Volker Fröhlich for the fix.
+- bugfix imfile: fix race during startup that could lead to some duplication
+ If a to-be-monitored file was created after inotify was initialized
+ but before startup was completed, the first chunk of data from this
+ file could be duplicated. This should have happened very rarely in
+ practice, but caused occasional testbench failures.
+ see also: https://github.com/rsyslog/rsyslog/issues/791
+- bugfix: potential loss of single message at queue shutdown
+ see also: https://github.com/rsyslog/rsyslog/issues/262
+- bugfix: potential deadlock with heavy variable access
+ When making heavy use of global, local and message variables, a deadlock
+ could occur. While it is extremely unlikely to happen, we have at least
+ seen one incarnation of this problem in practice.
+- bugfix ommysql: on some platforms, serverport parameter had no effect
+ This was caused by an invalid code sequence which's outcome depends on
+ compiler settings.
+- bugfix omelasticsearch: invalid pointer dereference
+ The actual practical impact is not clear. This came up when working
+ on compiler warnings.
+ Thanks to David Lang for the patch.
+- bugfix omhiredis: serverport config parameter did not reliably work
+ depended on environment/compiler used to build
+- bugfix rsgtutil: -h command line option did not work
+ Thanks to Henri Lakk for the patch.
+- bugfix lexer: hex numbers were not properly represented
+ see: https://github.com/rsyslog/rsyslog/pull/771
+ Thanks to Sam Hanes for the patch.
+- bugfix TLS syslog: intermittent errors while sending data
+ Regression from commit 1394e0b. A symptom often seen was the message
+ "unexpected GnuTLS error -50 in nsd_gtls.c:530"
+- bugfix imfile: abort on startup if no slash was present in file name param
+ Thanks to Brian Knox for the patch.
+- bugfix rsgtutil: fixed abort when using short command line options
+ Thanks to Henri Lakk
+- bugfix rsgtutil: invalid computation of log record extraction file
+ This caused verification to fail because the hash chain was actually
+ incorrect. Depended on the input data set.
+ closes https://github.com/rsyslog/rsyslog/issues/832
+- bugfix build system: KSI components could only be build if in default path
+------------------------------------------------------------------------------
+Version 8.16.0 [v8-stable] 2016-01-26
+- rsgtutil: Added extraction support including loglines and hash chains.
+ More details on how to extract loglines can be found in the rsgtutil
+ manpage. See also: https://github.com/rsyslog/rsyslog/issues/561
+- clean up doAction output module interface
+ We started with char * pointers, but used different types of pointers
+ over time. This lead to alignment warnings. In practice, I think this
+ should never cause any problems (at least there have been no reports
+ in the 7 or so years we do this), but it is not clean. The interface is
+ now cleaned up. We do this in a way that does not require modifications
+ to modules that just use string parameters. For those with message
+ parameters, have a look at e.g. mmutf8fix to see how easy the
+ required change is.
+- new system properties for $NOW properties based on UTC
+ This permits to express current system time in UTC.
+ See also https://github.com/rsyslog/rsyslog/issues/729
+- impstats: support broken ElasticSearch JSON implementation
+ ES 2.0 no longer supports valid JSON and disallows dots inside names.
+ This adds a new "json-elasticsearch" format option which replaces
+ those dots by the bang ("!") character. So "discarded.full" becomes
+ "discarded!full".
+ This is a workaround. A method that will provide more control over
+ replacements will be implemented some time in the future. For
+ details, see below-quoted issue tracker.
+ closes https://github.com/rsyslog/rsyslog/issues/713
+- omelasticsearch: craft better URLs
+ Elasticsearch is confused by url's ending in a bare '?' or '&'. While
+ this is valid, those are no longer produced.
+ Thanks to Benno Evers for the patch.
+- imfile: add experimental "reopenOnTruncate" parameter
+ Thanks to Matthew Wang for the patch.
+- bugfix imfile: proper handling of inotify initialization failure
+ Thanks to Zachary Zhao for the patch.
+- bugfix imfile: potential segfault due to improper handling of ev var
+ This occurs in inotify mode, only.
+ Thanks to Zachary Zhao and Peter Portante for the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/718
+- bugfix imfile: potential segfault under heavy load.
+ This occurs in inotify mode when using wildcards, only.
+ The root cause is dropped IN_IGNORED inotify events which be dropped
+ in circumstance of high input pressure and frequent rotation, and
+ according to wikipeida, they can also be dropped in other conditions.
+ Thanks to Zachary Zhao for the patch.
+ closes https://github.com/rsyslog/rsyslog/issues/723
+- bugfix ommail: invalid handling of server response
+ if that response was split into different read calls. Could lead to
+ error-termination of send operation. Problem is pretty unlikely to
+ occur in standard setups (requires slow connection to SMTP server).
+ Thank to github user haixingood for the patch.
+- bugfix omelasticsearch: custom serverport was ignored on some platforms
+ Thanks to Benno Evers for the patch.
+- bugfix: tarball did not include some testbench files
+ Thanks to Thomas D. (whissi) for the patch.
+- bugfix: memory misaddressing during config parsing string template
+ This occurred if an (invalid) template option larger than 63 characters
+ was given.
+ Thanks to git hub user c6226 for the patch.
+- bugfix imzmq: memory leak
+ Thanks to Jeremy Liang for the patch.
+- bugfix imzmq: memory leak
+ Thanks to github user xushengping for the patch.
+- bugfix omzmq: memory leak
+ Thanks to Jack Lin for the patch.
+- some code improvement and cleanup
+------------------------------------------------------------------------------
+Version 8.15.0 [v8-stable] 2015-12-15
+- KSI Lib: Updated code to run with libksi 3.4.0.5
+ Also libksi 3.4.0.x is required to build rsyslog if ksi support
+ is enabled. New libpackages have been build as well.
+- KSI utilities: Added option to ser publication url.
+ Since libksi 3.4.0.x, there is no default publication url anymore.
+ The publication url has to be set using the --publications-server
+ Parameter, otherwise the ksi signature cannot be verified. UserID
+ and UserKey can also be set by parameter now.
+ Closes https://github.com/rsyslog/rsyslog/issues/581
+- KSI Lib: Fixed wrong TLV container for KSI signatures from 0905 to 0906.
+ closes https://github.com/rsyslog/rsyslog/issues/587
+- KSI/GT Lib: Fixed multiple issues found using static analyzer
+- performance improvement for configs with heavy use of JSON variables
+ Depending on the config, this can be a very big gain in performance.
+- added pmpanngfw: contributed module for translating Palo Alto Networks logs.
+ see also: https://github.com/rsyslog/rsyslog/pull/573
+ Thanks to Luigi Mori for the contribution.
+- testbench: Changed valgrind option for imtcp-tls-basic-vg.sh
+ For details see: https://github.com/rsyslog/rsyslog/pull/569
+- pmciscoios: support for asterisk before timestamp added
+ thanks to github user c0by for the patch
+ see also: https://github.com/rsyslog/rsyslog/pull/583
+- solr external output plugin much enhanced
+ see also: https://github.com/rsyslog/rsyslog/pull/529
+ Thanks to Radu Gheorghe for the patch.
+- omrabbitmq: improvements
+ thanks to Luigi Mori for the patch
+ see also: https://github.com/rsyslog/rsyslog/pull/580
+- add support for libfastjson (as a replacement for json-c)
+- KSI utilities: somewhat improved error messages
+ Thanks to Henri Lakk for the patch.
+ see also: https://github.com/rsyslog/rsyslog/pull/588
+- pmciscoios: support for some format variations
+ Thanks to github user c0by for the patch
+- support grok via new contributed module mmgrok
+ Thanks to 饶琛琳 (github user chenryn) for the contribution.
+- omkafka: new statistics counter "maxoutqsize"
+ Thanks to 饶琛琳 (github user chenryn) for the contribution.
+- improvements for 0mq modules:
+ * omczmq - suspend / Retry handling - the output plugin can now recover
+ from some error states due to issues with plugin startup or message sending
+ * omczmq - refactored topic handling code for ZMQ_PUB output to be a little
+ more efficient
+ * omczmq - added ability to set a timeout for sends
+ * omczmq - set topics can be in separate frame (default) or part of message
+ frame (configurable)
+ * omczmq - code cleanup
+ * imczmq - code cleanup
+ * imczmq - fixed a couple of cases where vars could be used uninitialized
+ * imczmq - ZMQ_ROUTER support
+ * imczmq - Fix small memory leak from not freeing sockets when done with them
+ * allow creation of on demand ephemeral CurveZMQ certs for encryption.
+ Clients may specify clientcertpath="*" to indicate they want an on
+ demand generated cert.
+ Thanks to Brian Knox for the contributions.
+- cleanup on code to unset a variable
+ under extreme cases (very, very unlikely), the old code could also lead
+ to erroneous processing
+- omelasticsearch: build on FreeBSD
+ Thanks to github user c0by for the patch
+- pmciscoios: fix some small issues clang static analyzer detected
+- testbench: many improvements and some new tests
+ note that there still is a number of tests which are somewhat racy
+- overall code improvements thanks to clang static analyzer
+- gnutls fix: Added possible fix for gnutls issue #575
+ see also: https://github.com/rsyslog/rsyslog/issues/575
+ Thanks to Charles Southerland for the patch
+- bugfix omkafka: restore ability to build on all platforms
+ Undo commit aea09800643343ab8b6aa205b0f10a4be676643b
+ because that lead to build failures on various important platforms.
+ This means it currently is not possible to configure the location
+ of librdkafka, but that will affect far fewer people.
+ closes: https://github.com/rsyslog/rsyslog/issues/596
+- bugfix omkafka: fix potentially negative partition number
+ Thanks to Tait Clarridge for providing a patch.
+- bugfix: solve potential race in creation of additional action workers
+ Under extreme circumstances, this could lead to segfault. Note that we
+ detected this problem thanks to ASAN address sanitizer in combination
+ with a very extreme testbench test. We do not think that this issue
+ was ever reported in practice.
+- bugfix: potential memory leak in config parsing
+ Thanks to github user linmujia for the patch
+- bugfix: small memory leak in loading template config
+ This happened when a plugin was used inside the template. Then, the
+ memory for the template name was never freed.
+ Thanks to github user xushengping for the fix.
+- bugfix: fix extra whitespace in property expansions
+ Address off-by-one issues introduced in f3bd7a2 resulting in extra
+ whitespace in property expansions
+ Thanks to Matthew Gabeler-Lee for the patch.
+- bugfix: mmfields leaked memory if very large messages were processed
+ detected by clang static analyzer
+- bugfix: mmfields could add garbage data to field
+ this happened when very large fields were to be processed.
+ Thanks to Peter Portante for reporting this.
+- bugfix: omhttpfs now also compiles with older json-c lib
+- bugfix: memory leak in (contributed) module omhttpfs
+ Thanks to git hub user c6226 for the patch.
+- bugfix: parameter mismatch in error message for wrap() function
+- bugfix: parameter mismatch in error message for random() function
+- bugfix: divide by zero if max() function was provided zero
+- bugfix: invalid mutex handling in omfile async write mode
+ could lead to segfault, even though highly unlikely (caught by
+ testbench on a single platform)
+- bugfix: fix inconsistent number processing
+ Unfortunately, previous versions of the rule engine tried to
+ support oct and hex, but that wasn't really the case.
+ Everything based on JSON was just dec-converted. As this was/is
+ the norm, we fix that inconsistency by always using dec.
+ Luckily, oct and hex support was never documented and could
+ probably only have been activated by constant numbers.
+- bugfix: timezone() object: fix NULL pointer dereference
+ This happened during startup when the offset or id parameter was not
+ given. Could lead to a segfault at startup.
+ Detected by clang static analyzer.
+- bugfix omfile: memory addressing error if very long outchannel name used
+ Thanks to github user c6226 for the patch.
+------------------------------------------------------------------------------
+Version 8.14.0 [v8-stable] 2015-11-03
+- Added possibility to customize librdkafka location
+ see also: https://github.com/rsyslog/rsyslog/pull/502
+ Thanks to Matthew Wang for the patch.
+- add property "rawmsg-after-pri"
+- bugfix: potential misaddresseing in imfile
+ Could happen when wildcards were used.
+ see also https://github.com/rsyslog/rsyslog/issues/532
+ see also https://github.com/rsyslog/rsyslog/issues/534
+ Thanks to zhangdaoling for the bugfix.
+- bugfix: re_extract RainerScript function did not work
+ Thanks to Janmejay Singh for the patch
+------------------------------------------------------------------------------
+Version 8.13.0 [v8-stable] 2015-09-22
+- ZeroMQ enhancements:
+ * Added the ability to set a static publishing topic per action as an
+ alternative to constructing topics with templates
+ Contributor: Luca Bocassi
+ * ZMQ_PUB socket now defaults to bind and ZMQ_SUB socket now defaults to
+ connect - Contributor: Luca Bocassi
+- Redis enhancements:
+ * Can now LPUSH to a Redis list in "queue" mode - Contributor: Brian Knox
+ * Can now PUBLISH to a Redis channel in "publish" mode
+ Contributor: Brian Knox
+- build requirement for rsyslog/mmnormalize is now liblognorm 1.1.2 or above
+- mmnormalize: liblognorm error messages are now emitted via regular
+ rsyslog error reporting mechanism (aka "are now logged")
+ This is possible due to a new API in liblognorm 1.1.2;
+ Note that the amount of error messages depends on the version of
+ liblognorm used.
+- add support for TCP client side keep-alives
+ Thanks to github user tinselcity for the patch.
+- bugfix: imtcp/TLS hangs on dropped packets
+ see also https://github.com/rsyslog/rsyslog/issues/318
+ Thanks to github user tinselcity for the patch.
+- bugfix testbench: some tests using imptcp are run if module is disabled
+ Thanks to Michael Biebl for reporting this
+ see also https://github.com/rsyslog/rsyslog/issues/524
+- bugfix omkafka: Fixes a bug not accepting new messages anymore.
+ see also: https://github.com/rsyslog/rsyslog/pull/472
+ Thanks to Janmejay Singh
+- bugfix: Parallel build issue "cannot find ../runtime/.libs/librsyslog.a:
+ No such file or directory" (#479) fixed.
+ Thanks to Thomas D. (Whissi) for the patch.
+- bugfix: Added missing mmpstrucdata testfiles into makefile.
+ see also: https://github.com/rsyslog/rsyslog/issues/484
+- bugfix: Reverted FIX for issue #392 as it had unexpected side effects.
+ The new fix duplicates the Listener object for static files (like
+ done for dynamic files already), resolving issue #392 and #490.
+ see also https://github.com/rsyslog/rsyslog/pull/490
+- bugfix: issues in queue subsystem if syncqueuefiles was enabled
+ * Error 14 was generated on the .qi file directory handle.
+ As the .qi filestream does not have a directory set, fsync
+ was called on an empty directory causing a error 14 in debug log.
+ * When queue files existed on startup, the bSyncQueueFiles
+ strm property was not set to 1. This is now done in the
+ qqueueLoadPersStrmInfoFixup function.
+- bugfix/testbench: tcpflood tool could abort when random data was added
+ see also: https://github.com/rsyslog/rsyslog/issues/506
+ Thanks to Louis Bouchard for the fix
+- rscryutil: Added support to decrypt a not closed log file.
+ Thanks to wizard1024 for the patch.
+------------------------------------------------------------------------------
+Version 8.12.0 [v8-stable] 2015-08-11
+- Harmonize resetConfigVariables values and defaults
+ see also https://github.com/rsyslog/rsyslog/pull/413
+ Thanks to Tomas Heinrich for the patch.
+- GT/KSI: fix some issues in signature file format and add conversion tool
+ The file format is incompatible to previous format, but tools have been
+ upgraded to handle both and also an option been added to convert from
+ old to new format.
+- bugfix: ommysql did not work when gnutls was enabled
+ as it turned out, this was due to a check for GnuTLS functions
+ with the side-effect that
+ AC_CHECK_LIB, by default, adds the lib to LIBS, if there is no
+ explicit action, what was the case here. So everything was now
+ linked against GnuTLS, which in turn made ommysql fail.
+ Thanks to Thomas D. (whissi) for the analysis of the ommysql/gnutls
+ problem and Thomas Heinrich for pointing out that AC_CHECK_LIB might
+ be the culprit.
+- bugfix omfile: potential memory leak on file close
+ see also: https://github.com/rsyslog/rsyslog/pull/423
+ Thanks to Robert Schiele for the patch.
+- bugfix omfile: potential race in dynafile detection/creation
+ This could lead to a segfault.
+ Thanks to Tomas Heinrich for the patch.
+- bugfix omfile: Fix race-condition detection in path-creation code
+ The affected code is used to detect a race condition in between
+ testing for the existence of a directory and creating it if it didn't
+ exist. The variable tracking the number of attempts wasn't reset for
+ subsequent elements in the path, thus limiting the number of
+ reattempts to one per the whole path, instead of one per each path
+ element.
+ This solution was provided by Martin Poole.
+- bugfix parser subsystem: potential misaddressing in SanitizeMsg()
+ could lead to a segfault
+ Thanks to Tomas Heinrich for the patch.
+- imfile: files moved outside of directory are now (properly) handled
+- bugfix: imfile: segfault when using startmsg.regex if first log line
+ doesn't match
+ Thanks to Ciprian Hacman for the patch.
+- bugfix imfile: file table was corrupted when on file deletion
+ This could happen when a file that was statically configured (not via an
+ wildcard) was deleted.
+- bugfix ompgsql: transaction were improperly handled
+ now transaction support is solidly disabled until we have enough requests
+ to implement it again. Module still works fine in single insert mode.
+ closes https://github.com/rsyslog/rsyslog/issues/399
+- bugfix mmjsonparse: memory leak if non-cee-json message is processed
+ see also https://github.com/rsyslog/rsyslog/pull/383
+ Thanks to Anton Matveenko for the patch
+- testbench: remove raciness from UDP based tests
+- testbench: added bash into all scripts making it mandatory
+- bugfix testbench: Fixed problem building syslog_caller util when
+ liblogging-stdlog is not available.
+ Thanks to Louis Bouchard for the patch
+- bugfix rscryutil.1: Added fix checking for generate_man_pages condition
+ Thanks to Radovan Sroka for the patch
+- bugfix freebsd console: \n (NL) is prepended with \r (CR) in console
+ output on freebsd only. For more details see here:
+ https://github.com/rsyslog/rsyslog/issues/372
+ Thanks to AlexandreFenyo for the patch
+------------------------------------------------------------------------------
+Version 8.11.0 [v8-stable] 2015-06-30
+- new signature provider for Keyless Signature Infrastructure (KSI) added
+- build system: re-enable use of "make distcheck"
+- add new signature provider for Kesless Signature Infrastructure (KSI)
+ This has also been added to existing tooling; KSI is kind of v2 of
+ the Guardtime functionality and has been added in the appropriate
+ places.
+- bugfix imfile: regex multiline mode ignored escapeLF option
+ Thanks to Ciprian Hacman for reporting the problem
+ closes https://github.com/rsyslog/rsyslog/issues/370
+- bugfix omkafka: fixed several concurrency issues, most of them related
+ to dynamic topics.
+ Thanks to Janmejay Singh for the patch.
+- bugfix: execonlywhenpreviousissuspended did not work correctly
+ This especially caused problems when an action with this attribute was
+ configured with an action queue.
+- bugfix core engine: ensured global variable atomicity
+ This could lead to problems in RainerScript, as well as probably in other
+ areas where global variables are used inside rsyslog. I wouldn't outrule
+ it could lead to segfaults.
+ Thanks to Janmejay Singh for the patch.
+- bugfix imfile: segfault when using startmsg.regex because of empty log line
+ closes https://github.com/rsyslog/rsyslog/issues/357
+ Thanks to Ciprian Hacman for the patch.
+- bugfix: build problem on Solaris
+ Thanks to Dagobert Michelsen for reporting this and getting us up to
+ speed on the openCWS build farm.
+- bugfix: build system strndup was used even if not present
+ now added compatibility function. This came up on Solaris builds.
+ Thanks to Dagobert Michelsen for reporting the problem.
+ closes https://github.com/rsyslog/rsyslog/issues/347
+- bugfix imjournal: do not pass empty messages to rsyslog core
+ this causes a crash of the daemon
+ see also https://github.com/rsyslog/rsyslog/pull/412
+ Thanks to Tomas Heinrich for the patch.
+- bugfix imjournal: cosmetic memory leak
+ very small and an shutdown only, so did not affect operations
+ see also https://github.com/rsyslog/rsyslog/pull/411
+ Thanks to Tomas Heinrich for the patch.
+------------------------------------------------------------------------------
+Version 8.10.0 [v8-stable] 2015-05-19
+- imfile: add capability to process multi-line messages based on regex
+ input parameter "endmsg.regex" was added for that purpose. The new
+ mode provides much more power in processing different multiline-formats.
+- pmrfc3164: add new parameters
+ * "detect.yearAfterTimestamp"
+ This supports timestamps as generated e.g. by some Aruba Networks
+ equipment.
+ * "permit.squareBracesInHostname"
+ Permits to use "hostnames" in the form of "[127.0.0.1]"; also seen in
+ Aruba Networks equipment, but we strongly assume this can also happen
+ in other cases, especially with IPv6.
+- supplementary groups are now set when dropping privileges
+ closes https://github.com/rsyslog/rsyslog/issues/296
+ Thanks to Zach Lisinski for the patch.
+- imfile: added brace glob expansion to wildcard
+ Thanks to Zach Lisinski for the patch.
+- zmq: add the ability for zeromq input and outputs to advertise their
+ presence on UDP via the zbeacon API.
+ Thanks to Brian Knox for the contribution.
+- added omhttpfs: contributed module for writing to HDFS via HTTP
+ Thanks to sskaje for the contribution.
+- Configure option "--disable-debug-symbols" added which is disabled per
+ default. If you set the new option, configure won't set the appropriate
+ compiler flag to generate debug symbols anymore.
+- When building from git source we now require rst2man and yacc (or a
+ replacement like bison).
+ That isn't any new requirement, we only added missing configure checks.
+- Configure option "--enable-generate-man-pages" is now disabled for non git
+ source builds per default but enforced when building from git source.
+- mmpstrucdata: some code cleanup
+ removed lots of early development debug outputs
+- bugfix imuxsock: fix a memory leak that happened with large messages
+ ... when annotation was enabled.
+ Thanks to github user c6226 for the patch
+- bugfix omhttpfs: memory leak
+ Thanks to github user c6226 for the patch
+- bugfix imuxsock: fix a crash when setting a hostname
+ Setting a hostname via the legacy directive would lead to a crash
+ during shutdown caused by a double-free.
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: memory leak in mmpstrucdata
+ Thanks to Grégoire Seux for reporting this issue.
+ closes https://github.com/rsyslog/rsyslog/issues/310
+- bugfix (minor): default action name: assigned number was one off
+ see also https://github.com/rsyslog/rsyslog/pull/340
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: memory leak in imfile
+ A small leak happened each time a new file was monitored based on
+ a wildcard. Depending on the rate of file creation, this could result
+ in a serious memory leak.
+------------------------------------------------------------------------------
+Version 8.9.0 [v8-stable] 2015-04-07
+- omprog: add option "hup.forward" to forwards HUP to external plugins
+ This was suggested by David Lang so that external plugins (and other
+ programs) can also do HUP-specific processing. The default is not
+ to forward HUP, so no change of behavior by default.
+- imuxsock: added capability to use regular parser chain
+ Previously, this was a fixed format, that was known to be spoken on
+ the system log socket. This also adds new parameters:
+ - sysSock.useSpecialParser module parameter
+ - sysSock.parseHostname module parameter
+ - useSpecialParser input parameter
+ - parseHostname input parameter
+- 0mq: improvements in input and output modules
+ See module READMEs, part is to be considered experimental.
+ Thanks to Brian Knox for the contribution.
+- imtcp: add support for ip based bind for imtcp -> param "address"
+ Thanks to github user crackytsi for the patch.
+- bugfix: MsgDeserialize out of sync with MsgSerialize for StrucData
+ This lead to failure of disk queue processing when structured data was
+ present. Thanks to github user adrush for the fix.
+- bugfix imfile: partial data loss, especially in readMode != 0
+ closes https://github.com/rsyslog/rsyslog/issues/144
+- bugfix: potential large memory consumption with failed actions
+ see also https://github.com/rsyslog/rsyslog/issues/253
+- bugfix: omudpspoof: invalid default send template in RainerScript format
+ The file format template was used, which obviously does not work for
+ forwarding. Thanks to Christopher Racky for alerting us.
+ closes https://github.com/rsyslog/rsyslog/issues/268
+- bugfix: size-based legacy config statements did not work properly
+ on some platforms, they were incorrectly handled, resulting in all
+ sorts of "interesting" effects (up to segfault on startup)
+- build system: added option --without-valgrind-testbench
+ ... which provides the capability to either enforce or turn off
+ valgrind use inside the testbench. Thanks to whissi for the patch.
+- rsyslogd: fix misleading typos in error messages
+ Thanks to Ansgar Püster for the fixes.
+------------------------------------------------------------------------------
+Version 8.8.0 [v8-stable] 2015-02-24
+- omkafka: add support for dynamic topics and auto partitioning
+ Thanks to Tait Clarridge for the patches.
+- imtcp/imptcp: support for broken Cisco ASA TCP syslog framing
+- omfwd: more detailed error messages in case of UDP send error
+- TLS syslog: enable capability to turn on GnuTLS debug logging
+ This provides better diagnostics in hard-to-diagnose cases,
+ especially when GnuTLS is extra-picky about certificates.
+- bugfix: $AbortOnUncleanConfig did not work
+- improve rsyslogd -v output and error message with meta information
+ version number is now contained in error message and build platform in
+ version output. This helps to gets rid of the usual "which version"
+ question on mailing list, support forums, etc...
+- bugfix imtcp: octet-counted framing cannot be turned off
+- bugfix: build problems on Illuminos
+ Thanks to Andrew Stormont for the patch
+- bugfix: invalid data size for iMaxLine global property
+ It was defined as int, but inside the config system it was declared as
+ size type, which uses int64_t. With legacy config statements, this could
+ lead to misaddressing, which usually meant the another config variable was
+ overwritten (depending on memory layout).
+ closes https://github.com/rsyslog/rsyslog/issues/205
+- bugfix: negative values for maxMessageSize global parameter were permitted
+------------------------------------------------------------------------------
+Version 8.7.0 [v8-stable] 2015-01-13
+- add message metadata "system" to msg object
+ this permits to store metadata alongside the message
+- imfile: add support for "filename" metadata
+ this is useful in cases where wildcards are used
+- imptcp: make stats counter names consistent with what imudp, imtcp uses
+- added new module "omkafka" to support writing to Apache Kafka
+- omfwd: add new "udp.senddelay" parameter
+- mmnormalize enhancements
+ Thanks to Janmejay Singh for the patch.
+- RainerScript "foreach" iterator and array reading support
+ Thanks to Janmejay Singh for the patch.
+- now requires liblognorm >= 1.0.2
+- add support for systemd >= 209 library names
+- BSD "ntp" facility (value 12) is now also supported in filter
+ Thanks to Douglas K. Rand of Iteris, Inc. for the patch.
+ Note: this patch was released under ASL 2.0 (see email-conversation).
+- bugfix: global(localHostName="xxx") was not respected in all modules
+- bugfix: emit correct error message on config-file-not-found
+ closes https://github.com/rsyslog/rsyslog/issues/173
+- bugfix: impstats emitted invalid JSON format (if JSON was selected)
+- bugfix: (small) memory leak in omfile's outchannel code
+ Thanks to Koral Ilgun for reporting this issue.
+- bugfix: imuxsock did not deactivate some code not supported by platform
+ Among potential other problems, this caused build failure under Solaris.
+ Note that this build problem just made a broader problem appear that so
+ far always existed but was not visible.
+ closes https://github.com/rsyslog/rsyslog/issues/185
+------------------------------------------------------------------------------
+Version 8.6.0 [v8-stable] 2014-12-02
+NOTE: This version also incorporates all changes and enhancements made for
+v8.5.0, but in a stable release. For details see immediately below.
+- configuration-setting rsyslogd command line options deprecated
+ For most of them, there are now proper configuration objects. Some few
+ will be completely dropped if nobody insists on them. Additional info at
+ http://blog.gerhards.net/2014/11/phasing-out-legacy-command-line-options.html
+- new and enhanced plugins for 0mq. These are currently experimental.
+ Thanks to Brian Knox who contributed the modules and is their author.
+- empty rulesets have been permitted. They no longer raise a syntax error.
+- add parameter -N3 to enable config check of partial config file
+ Use for config include files. Disables checking if any action exists at
+ all.
+- rsyslogd -e option has finally been removed
+ It is deprecated since many years.
+- testbench improvements
+ Testbench is now more robust and has additional tests.
+- testbench is now by default disabled
+ To enable it, use --enable-testbench. This was done as the testbench now
+ does better checking if required modules are present and this in turn
+ would lead to configure error messages where non previously were if we
+ would leave --enable-testbench on by default. Thus we have turned it off.
+ This should not be an issue for those few testbench users.
+- add new RainerScript functions warp() and replace()
+ Thanks to Singh Janmejay for the patch.
+- mmnormalize can now also work on a variable
+ Thanks to Singh Janmejay for the patch.
+- new property date options for day ordinal and week number
+ Thanks to github user arrjay for the patch
+- remove --enable-zlib configure option, we always require it
+ It's hard to envision a system without zlib, so we turn this off
+ closes https://github.com/rsyslog/rsyslog/issues/76
+- slight source-tree restructuring: contributed modules are now in their
+ own ./contrib directory. The idea is to make it clearer to the end user
+ which plugins are supported by the rsyslog project (those in ./plugins).
+- bugfix: imudp makes rsyslog hang on shutdown when more than 1 thread used
+ closes https://github.com/rsyslog/rsyslog/issues/126
+- bugfix: not all files closed on auto-backgrounding startup
+ This could happen when not running under systemd. Some low-numbered
+ fds were not closed in that case.
+- bugfix: typo in queue configuration parameter
+ made parameter unusable
+ Thanks to Bojan Smojver for the patch.
+- bugfix: uninitialized buffer off-by-one error in hostname generation
+ The DNS cache used uninitialized memory, which could lead to
+ invalid hostname generation.
+ Thanks to Jarrod Sayers for alerting us and providing analysis and
+ patch recommendations.
+- bugfix imuxsock: possible segfault when SysSock.Use="off"
+ Thanks to alexjfisher for reporting this issue.
+ closes https://github.com/rsyslog/rsyslog/issues/140
+- bugfix: RainerScript: invalid ruleset names were accepted
+ during ruleset definition, but could of course not be used when
+ e.g. calling a ruleset.
+ IMPORTANT: this may cause existing configurations to error out on start,
+ as they invalid names could also be used e.g. when assigning rulesets.
+- bugfix: some module entry points were not called for all modules
+ callbacks like endCnfLoad() were primarily being called for input
+ modules. This has been corrected. Note that this bugfix has some
+ regression potential.
+- bugfix omlibdbi: connection was taken down in wrong thread
+ this could have consequences depending on the driver being used. In
+ general, it looks more like a cosmetic issue. For example, with
+ MySQL it lead to a small memory but also an annoying message about
+ a thread not properly torn down.
+- imttcp was removed because it was an incomplete experimental module
+- pmrfc3164sd because it was a custom module nobody used
+ We used to keep this as a sample inside the tree, but whoever wants
+ to look at it can check in older versions inside git.
+- omoracle was removed because it was orphaned and did not build/work
+ for quite some years and nobody was interested in fixing it
+---------------------------------------------------------------------------
+Version 8.5.0 [v8-stable] 2014-10-24
+- imfile greatly refactored and support for wildcards added
+- PRI-handling code refactored for more clarity and robustness
+- ommail: add support for RainerScript config system [action() object]
+ This finally adds support for the new config style. Also, we now permit
+ to set a constant subject text without the need to create a template for
+ it.
+- refactored the auto-backgrounding method
+ The code is now more robust and also offers possibilities for enhanced
+ error reporting in the future. This is also assumed to fix some races
+ where a system startup script hang due to "hanging" rsyslogd.
+- make gntls tcp syslog driver emit more error messages
+ Messages previously emitted only to the debug log are now emitted as
+ syslog error messages. It has shown that they contain information
+ helpful to the user for troubleshooting config issues. Note that this
+ change is a bit experimental, as we are not sure if there are situations
+ where large amounts of error messages may be emitted.
+- bugfix: imfile did not complain if configured file did not exist
+ closes https://github.com/rsyslog/rsyslog/issues/137
+- bugfix: build failure on systems which don't have json_tokener_errors
+ Older versions of json-c need to use a different API (which don't exists
+ on newer versions, unfortunately...)
+ Thanks to Thomas D. for reporting this problem.
+- imgssapi: log remote peer address in some error messages
+ Thanks to Bodik for the patch.
+---------------------------------------------------------------------------
+Version 8.4.3 [v8-stable] 2014-10-??
+- ommail: minor bugfixes & improvements
+ * timestamps were 1 hour out when using daylight saving times when
+ viewing emails in most email clients due to incorrect date format
+ * X-Mailer header had a typo in it
+ * To: header was duplicated once per recipient (this is permitted,
+ but an address list is a better choice nowadays)
+ Thanks to github user cacheus for the patches.
+- bugfix imkmsg: infinite loop on OpenVZ VMs
+ Thanks to github user PaulSD for the patch
+ closes https://github.com/rsyslog/rsyslog/pull/138
+- bugfix: typo in queue configuration parameter made parameter unusable
+ Thanks to Bojan Smojver for the patch.
+- bugfix: uninitialized buffer off-by-one error in hostname generation
+ The DNS cache used uninitialized memory, which could lead to
+ invalid hostname generation.
+ Thanks to Jarrod Sayers for alerting us and providing analysis and
+ patch recommendations.
+- bugfix imfile: segfault on startup in "inotify" mode
+ A segfault happened when more than one file was monitored.
+- bugfix imfile: could make rsyslog exit in inotify mode
+- bugfix: rsgtutil sometimes crashed in verify mode if file did not exist
+- bugfix imklog: pri was miscalculated
+ actually, the pri was totally off the real value for PRIs > 9
+- bugfix imfile:file processing in inotify mode was stalled sometimes
+ closes https://github.com/rsyslog/rsyslog/issues/134
+- bugfix: imjournal did not build properly
+ The build succeeded, but the module did not load due to a type in
+ a support function name, which kept unresolved during load.
+- bugfix: mmcount did no longer build
+ note that this is untested -- users of this module should file a bug if
+ the new (trivial) code is broken [if there are any users, thus I did not
+ invest time in testing...]
+ closes https://github.com/rsyslog/rsyslog/issues/129
+- bugfix imuxsock: possible segfault when SysSock.Use="off"
+ Thanks to alexjfisher for reporting this issue.
+ closes https://github.com/rsyslog/rsyslog/issues/140
+---------------------------------------------------------------------------
+Version 8.4.2 [v8-stable] 2014-10-02
+- bugfix: the fix for CVE-2014-3634 did not handle all cases
+ This is corrected now.
+ see also: CVE-2014-3683
+- fixed a build problem on some platforms
+ Thanks to Olaf for the patch
+- behavior change: "msg" of messages with invalid PRI set to "rawmsg"
+ When the PRI is invalid, the rest of the header cannot be valid. So
+ we move all of it to MSG and do not try to parse it out. Note that
+ this is not directly related to the security issue but rather done
+ because it makes most sense.
+---------------------------------------------------------------------------
+Version 8.4.1 [v8-stable] 2014-09-30
+- imudp: add for bracketing mode, which makes parsing stats easier
+- permit at-sign in variable names
+ closes: https://github.com/rsyslog/rsyslog/issues/110
+- bugfix: fix syntax error in anon_cc_numbers.py script
+ Thanks to github user anthcourtney for the patch.
+ closes: https://github.com/rsyslog/rsyslog/issues/109
+- bugfix: ompgsql: don't loose uncommitted data on retry
+ Thanks to Jared Johnson and Axel Rau for the patch.
+- bugfix: imfile: if a state file for a different file name was set,
+ that different file (name) was monitored instead of the configured
+ one. Now, the state file is deleted and the correct file monitored.
+ closes: https://github.com/rsyslog/rsyslog/issues/103
+- bugfix: omudpspoof: source port was invalid
+ Thanks to Pavel Levshin for the patch
+- bugfix: build failure on systems which don't have json_tokener_errors
+ Older versions of json-c need to use a different API (which don't exists
+ on newer versions, unfortunately...)
+ Thanks to Thomas D. for reporting this problem.
+- bugfix: omelasticsearch does not work with broken/changed ES 1.0+ API
+ closes: https://github.com/rsyslog/rsyslog/issues/104
+- bugfix: mmanon did not properly anonymize IP addresses starting with '9'
+ Thanks to defa-at-so36.net for reporting this problem.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=529
+- bugfix: build problems on SuSe Linux
+ Thanks Andreas Stieger for the patch
+- bugfix: omelasticsearch error file did not work correctly on ES 1.0+
+ due to a breaking change in the ElasticSearch API.
+ see also: https://github.com/rsyslog/rsyslog/issues/104
+- bugfix: potential abort when a message with PRI > 191 was processed
+ if the "pri-text" property was used in active templates, this could
+ be abused to a remote denial of service from permitted senders
+ see also: CVE-2014-3634
+---------------------------------------------------------------------------
+Version 8.4.0 [v8-stable] 2014-08-18
+- this is the new stable branch, which incorporates all enhancements of
+ rsyslog 8.3.
+---------------------------------------------------------------------------
+Version 8.3.5 [v8-devel] 2014-08-05
+- mmjsonparse: support selectable cookie and target containers
+ This permits to put different meanings into a json formatted syslog
+ message, e.g. the "traditional" cee or cim data.
+- bugfix: mmjsonparse did not build with json-c < 0.10
+ This was a regression introduced some time in the past in order to
+ support API changes in json-c. Now we check for the version and use
+ proper code.
+- omprog: emit error message via syslog() if loading binary fails
+ This happens after forking, so omprog has no longer access to rsyslog's
+ regular error reporting functions. Previously, this meant any error
+ message was lost. Now it is emitted via regular syslog (which may end up
+ in a different instance, if multiple instances run...)
+- couple of patches imported from v7-stable (7.6.4)
+---------------------------------------------------------------------------
+Version 8.3.4 [v8-devel] 2014-07-11
+- new pmciscoios parser supporting various Cisco IOS formats
+- RFC3164 timestamp parser now accepts timezones and subsecond resolution
+ ... at least for some common formats and where we could do so without
+ running risk of breaking proper formats (or introducing regressions)
+- new parser config object -- permits to define custom parser definitions
+- new tzinfo config object -- permits to define time zone offsets
+ This is a utility object that currently is being used by some parsers.
+- bugfix: mishandling of input modules not supporting new input instances
+ If they did not support this, accidentally the output module part of the
+ module union was written, leading to unpredictable results. Note: all
+ core modules do support this interface, but some contributed or very
+ old ones do not.
+- bugfix: double-free when ruleset() parser parameters were used
+ While unlikely, this could cause stability issues even after the
+ config phase.
+---------------------------------------------------------------------------
+Version 8.3.3 [v8-devel] 2014-06-26
+- unify input object naming
+ imudp now supports "name" parameter, as other inputs do. "inputname" has
+ been deprecated, but can still be used. Same applies to "appendport"
+ subparameter". Thanks to "Nick Syslog" for the suggestion.
+- made the missing (contributed) modules build under v8 [import from 8.2.2]
+ Modules:
+ * mmrfc5424addhmac
+ * omrabbitmq
+ * omgssapi
+ * omhdfs
+ * omzmq3
+- added a cleanup process (janitor); permits to close omfile files after a
+ timeout
+- make omgssapi build under v8.3 [import vom v8.2]
+ note that we could do this to the stable, because there is NO regression
+ chance at all: only omgssapi was changed, and this module did NOT work
+ previously.
+- removed obsolete --disable-fsstnd configure option
+ Thanks to Thomas D. for alerting us.
+ Closes: https://github.com/rsyslog/rsyslog/issues/72
+---------------------------------------------------------------------------
+Version 8.3.2 [v8-devel] 2014-05-02
+- new template options for date extraction:
+ - year
+ - month
+ - day
+ - wday
+ - hour
+ - minute
+ - second
+ - tzoffshour
+ - tzoffsmin
+ - tzoffsdirection
+ - wdayname
+ For string templates, these are property options and they are
+ prefixed with "date-" (e.g. "date-year", "date-month", ...)
+ see also: https://github.com/rsyslog/rsyslog/issues/65
+- bugfix: mmexternal remove framing char before processing JSON reply
+ This did not have any real bad effects, but caused unnecessary
+ processing, as empty replies were not properly detected. Otherwise,
+ the bug was not noticeable from the user's PoV.
+- bugfix: mmexternal segfault due to invalid free in non-json input mode
+ closes: https://github.com/rsyslog/rsyslog/issues/70
+- bugfix: mmexternal segfault when external plugin sent invalid reply
+ ... or no reply at all. This happened if the reply was improper JSON.
+ Now, we emit an error message in those cases.
+ see also: https://github.com/rsyslog/rsyslog/issues/69
+- bugfix: mmexternal did potentially pass incomplete data to restarted
+ external plugin
+ This could happen if EPIPE was returned "too late", in which case the
+ beginning of the data could be lost.
+- bugfix: mmexternal did not properly process messages over 4KiB
+ The data to be passed to the external plugin was truncated after 4KiB.
+ see: https://github.com/rsyslog/rsyslog/issues/64
+- imrelp: added support for per-listener ruleset and inputname
+ see: https://github.com/rsyslog/rsyslog/pull/63
+ Thanks to bobthesecurityguy github user for the patch
+---------------------------------------------------------------------------
+Version 8.3.1 [v8-devel] 2014-04-24
+- external message modification interface now support modifying message PRI
+- "jsonmesg" property will include uuid only if one was previously generated
+ This is primarily a performance optimization. Whenever the message uuid
+ is gotten, it is generated when not already present. As we used the
+ regular setter, this means that always the uuid was generated, which is
+ quite time-consuming. This has now been changed so that it only is
+ generated if it already exists. That also matches more closely the
+ semantics, as "jsonmesg" should not make modifications to the message.
+ Note that the same applies to "fulljson" passing mode for external
+ plugins.
+- added plugin to rewrite message facility and/or severity
+ Name: fac-sever-rewrite.py
+- permits to build against json-c 0.12
+ Unfortunately, json-c had an ABI breakage, so this is necessary. Note
+ that versions prior to 0.12 had security issues (CVE-2013-6370,
+ CVE-2013-6371) and so it is desirable to link against the new version.
+ Thanks to Thomas D. for the patch. Note that at least some distros
+ have fixed the security issue in older versions of json-c, so this
+ seems to apply mostly when building from sources.
+- bugfix: using UUID property could cause segfault
+- bugfix/mmexternal: memory leak
+- bugfix: memory leak when using "jsonmesg" property
+- bugfix: mmutf8fix did not detect two invalid sequences
+ Thanks to Axel Rau for the patch.
+- bugfix: build problems with lexer.l on some platforms
+ For some reason, the strdup() prototype and others are missing. I admit
+ that I don't know why, as this happens only in 8.3.0+ and there is no
+ indication of changes to the affected files. In any case, we need to
+ fix this, and the current solution works at least as an interim one.
+---------------------------------------------------------------------------
+Version 8.3.0 [v8-devel] 2014-04-10
+- new plugin for anonymizing credit card numbers
+ Thanks to Peter Slavov for providing the code.
+- external message modification modules are now supported
+ They are bound via the new native module "mmexternal". Also, a sample
+ skeleton for an external python message modification module has been
+ added.
+- new $jsonmesg property with JSON representation of whole message object
+ closes: https://github.com/rsyslog/rsyslog/issues/19
+- improved error message for invalid field extraction in string template
+ see also:
+ http://kb.monitorware.com/problem-with-field-based-extraction-t12299.html
+- fix build problems on Solaris
+- NOTE: a json-c API that we begun to use requires the compiler to be in
+ c99 mode. By default, we select it automatically. If you modify this and
+ use gcc, be sure to include "-std=c99" in your compiler flags. This seems
+ to be necessary only for older versions of gcc.
+---------------------------------------------------------------------------
+Version 8.2.3 [v8-stable] 2014-??-??
+- bugfix: ommysql: handle/mem leak upon termination of worker thread
+ This could become bad if the (instance) worker threads are often
+ started and terminated. But it takes quite a while to show effect.
+---------------------------------------------------------------------------
+Version 8.2.2 [v8-stable] 2014-06-02
+- made the missing (contributed) modules build under v8
+ Note that we could do this to the stable, because there is NO regression
+ chance at all: only the modules themselves were changed, and they did
+ NOT work at all previously. Please also note that most of these modules
+ did not yet receive real testing. As we don't have the necessary
+ environments (easily enough available), we depend on users submitting
+ error reports and helping to iron out any issues that may arise.
+ Modules:
+ * mmrfc5424addhmac
+ * omrabbitmq
+ * omgssapi
+ * omhdfs
+ * omzmq3
+---------------------------------------------------------------------------
+Version 8.2.1 [v8-stable] 2014-04-17
+- permits to build against json-c 0.12
+ Unfortunately, json-c had an ABI breakage, so this is necessary. Note
+ that versions prior to 0.12 had security issues (CVE-2013-6370,
+ CVE-2013-6371) and so it is desirable to link against the new version.
+ Thanks to Thomas D. for the patch. Note that at least some distros
+ have fixed the security issue in older versions of json-c, so this
+ seems to apply mostly when building from sources.
+- doc is no longer shipped as part of the rsyslog tarball
+ Instead, the rsyslog-doc project creates its own tarball. This is the
+ result of a mailing list discussion after the 8.2.0 release with a
+ tarball-in-tarball approach, which was disliked by almost all distro
+ maintainers. This move also has the advantage of de-coupling the
+ release cycles of both projects a bit (which turned out to be a bit
+ problematic in practice).
+- bugfix: mmutf8fix did not detect two invalid sequences
+ Thanks to Axel Rau for the patch.
+---------------------------------------------------------------------------
+Version 8.2.0 [v8-stable] 2014-04-02
+This starts a new stable branch based on 8.1.6 plus the following changes:
+- we now use doc from the rsyslog-doc project
+ As such, the ./doc subtree has been removed. Instead, a cache of the
+ rsyslog-doc project's files has been included in ./rsyslog-doc.tar.gz.
+ Note that the exact distribution mode for the doc is still under
+ discussion and may change in future releases.
+ This was agreed upon on the rsyslog mailing list. For doc issues
+ and corrections, be sure to work with the rsyslog-doc project. It is
+ currently hosted at https://github.com/rsyslog/rsyslog-doc
+- add support for specifying the liblogging-stdlog channel spec
+ new global parameter "stdlog.channelspec"
+- add "defaultnetstreamdrivercertfile" global variable to set a default
+ for the certfile.
+ Thanks to Radu Gheorghe for the patch.
+- omelasticsearch: add new "usehttps" parameter for secured connections
+ Thanks to Radu Gheorghe for the patch.
+- "action resumed" message now also specifies module type
+ which makes troubleshooting a bit easier. Note that we cannot output all
+ the config details (like destination etc) as this would require much more
+ elaborate code changes, which we at least do not like to do in the
+ stable version.
+- add capability to override GnuTLS path in build process
+ Thanks to Clayton Shotwell for the patch
+- better and more consistent action naming, action queues now always
+ contain the word "queue" after the action name
+- bugfix: ompipe did resume itself even when it was still in error
+ See: https://github.com/rsyslog/rsyslog/issues/35
+ Thanks to github user schplat for reporting
+- bugfix: ompipe used invalid default template
+ This is a regression from an old change (didn't track it down precisely,
+ but over a year ago). It used the Forwarding template instead of
+ the file template (so we have a full syslog header). This fix corrects
+ it back to previous behavior, but new scripts that used the wrong
+ format may now need to have the RSYSLOG_ForwardingFormat template
+ explicitly be applied.
+ closes: https://github.com/rsyslog/rsyslog/issues/50
+---------------------------------------------------------------------------
+Version 8.1.6 [release candidate] 2014-02-20
+- omfile: permit to set global defaults for action parameters
+ Thanks to Nathan Brown for the patch.
+ See also: https://github.com/rsyslog/rsyslog/pull/23
+- add capability to escape control characters in the C way of doing it
+ adds new global parameter "parser.escapeControlCharactersCStyle"
+ Thanks to Nathan Brown for the patch.
+ See also: https://github.com/rsyslog/rsyslog/pull/13
+- parser global parameters can now be set using RainerScript global()
+ Thanks to Nathan Brown for the patch.
+ See also: https://github.com/rsyslog/rsyslog/pull/23
+- omprog: guard program-to-be-executed against CTL-C
+ This can frequently happen in debug mode, where rsyslog is terminated
+ by ctl-c. In any case, SIGINT is not meant to control the child process,
+ so it should be blocked.
+- omprog bugfix: parameter "forceSingleInstance" is NOT mandatory
+- add new jsonr property replacer option
+ Thanks to Nathan Brown for the patch.
+- added external plugin interface
+- ommongodb: add authentication support (untested)
+ Thanks to JT for the patch.
+ See also: https://github.com/rsyslog/rsyslog/pull/17
+- bugfix: json templates are improperly created
+ Strings miss the terminating NUL character, which obviously can lead
+ to all sorts of problems.
+ See also: https://github.com/rsyslog/rsyslog/issues/27
+ Thanks to Alain for the analysis and the patch.
+- ompgsql bugfix: improper handling of auto-backgrounding mode
+ If rsyslog was set to auto-background itself (default code behavior, but
+ many distros now turn it off for good reason), ompgsql could not
+ properly connect. This could even lead to a segfault. The core reason
+ was that a PG session handle was kept open over a fork, something that
+ is explicitly forbidden in the PG API.
+ Thanks to Alain for the analysis and the patch.
+- bugfix: ommongodb's template parameter was mandatory but should have
+ been optional
+ Thanks to Alain for the analysis and the patch.
+- bugfix: end of batch processing was not 100% correct. Could lead to
+ outputs not properly writing messages. At least omelasticsearch did not
+ write anything to the database due to this bug.
+ See: https://github.com/rsyslog/rsyslog/issues/10
+ Thanks to Radu Gheorghe for reporting the issue.
+---------------------------------------------------------------------------
+Version 8.1.5 [devel] 2014-01-24
+- omprog: ability to execute multiple program instances per action
+ It can now execute one program instance per worker thread. This is
+ generally a very good thing the have performance wise. Usually, this
+ should cause no problems with the invoked program. For that reason,
+ we have decided to make this the default mode of operation. If not
+ desired, it can be turned off via the 'forceSingleInstance="on"'
+ action parameter.
+ CHANGE OF BEHAVIOR: previous versions did always execute only one
+ instance per action, no matter how many workers were active. If
+ your program has special needs, you need to change your configuration.
+- imfile now supports inotify (but must be explicitly turned on)
+- imfile no longer has a limit on number of monitored files
+- added ProcessInternalMessages global system parameter
+ This permits to inject rsyslog status messages into *another* main
+ syslogd or the journal.
+- new dependency: liblogging-stdlog (for submitting to external logger)
+- bugfix: imuxsock input parameters were not accepted
+ due to copy&paste error. Thanks to Andy Goldstein for the fix.
+---------------------------------------------------------------------------
+Version 8.1.4 [devel] 2014-01-10
+- add exec_template() RainerScript function
+- imrelp: support for TCP KEEPALIVE added
+- bumped librelp dependency to 1.2.2 to support new KEEPALIVE feature
+- Add directives for numerically specifying GIDs/UIDs
+ The already present directives (FileOwner, FileGroup, DirOwner,
+ DirGroup) translate names to numerical IDs, which depends on the user
+ information being available during rsyslog's startup. This can fail if
+ the information is obtained over a network or from a service such as
+ SSSD. The new directives provide a way to specify the numerical IDs
+ directly and bypass the lookup.
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: action commitTransaction() processing did not properly handle
+ suspended actions
+- bugfix: omelasticsearch fail.es stats counter was improperly maintained
+---------------------------------------------------------------------------
+Version 8.1.3 [devel] 2013-12-06
+
+THIS VERSION CAN BE CONSIDERED A "NORMAL" DEVEL RELEASE. It's no longer
+highly experimental. This assertion is based on real-world feedback.
+
+- changes to the strgen module interface
+- new output module interface for transactional modules
+- performance improvements
+ * reduced number of malloc/frees due to further changes to the
+ output module interface
+ * reduced number of malloc/frees during string template processing
+ We now re-use once allocated string template memory for as long
+ as the worker thread exists. This saves us from doing new memory
+ allocs (and their free counterpart) when the next message is
+ processed. The drawback is that the cache always is the size of
+ the so-far largest message processed. This is not considered a
+ problem, as in any case a single messages' memory footprint should
+ be far lower than that of a whole set of messages (especially on
+ busy servers).
+ * used variable qualifiers (const, __restrict__) to hopefully help
+ the compiler generate somewhat faster code
+- failed action detection more precisely for a number of actions
+ If an action uses string parameter passing but is non-transactional
+ it can be executed immediately, giving a quicker indication of
+ action failure.
+- bugfix: limiting queue disk space did not work properly
+ * queue.maxdiskspace actually initializes queue.maxfilesize
+ * total size of queue files was not checked against
+ queue.maxdiskspace for disk assisted queues.
+ Thanks to Karol Jurak for the patch.
+---------------------------------------------------------------------------
+Version 8.1.2 [experimental] 2013-11-28
+- support for liblognorm1 added - results in performance improvements
+ Thanks to Pavel Levshin for his work in this regard.
+- support for jemalloc added via --enable-jemalloc
+ Thanks to Pavel Levshin for suggesting jemalloc
+ Note that build system is experimental at this stage.
+- queue defaults have changed
+ * high water mark is now dynamically 90% of queue size
+ * low water makr is now dynamically 70% of queue size
+ * queue.discardMark is now dynamically 98% of queue size
+ * queue.workerThreadMinimumMessage set to queue.size / num workers
+ For queues with very low queue.maxSize (< 100), "emergency" defaults
+ will be used.
+- bugfix: disk queues created files in wrong working directory
+ if the $WorkDirectory was changed multiple times, all queues only
+ used the last value set.
+- bugfix: legacy directive $ActionQueueWorkerThreads was not honored
+- bugfix: mmrfc5424addhmac: "key" parameter was not properly processed
+---------------------------------------------------------------------------
+Version 8.1.1 [experimental] 2013-11-19
+- bugfix: STOP/discard(~) was mostly NOT honored
+ This lead to execution of config code that was not meant to be executed.
+- bugfix: memory leak on worker thread termination
+- bugfix: potential segfault in omfile under heavy load
+ Thanks to Pavel Levshin for alerting us.
+- bugfix: mmsequence: instance mode did not work
+ Thanks to Pavel Levshin for the patch
+- bugfix: segfault on startup when certain script constructs are used
+ e.g. "if not $msg ..."
+- omhiredis: now supports v8 output module interface and works again
+ Thanks to Pavel Levshin for the patch
+- mmaudit: now supports v8 output module interface and work again
+- bugfix: potential abort on startup in debug mode
+ This depends on template type being used. The root cause was a
+ non-necessary debug output, which were at the wrong spot (leftover from
+ initial testing).
+ Thanks to Pavel Levshin for alerting us and providing a patch
+ proposal.
+---------------------------------------------------------------------------
+Version 8.1.0 [experimental] 2013-11-15
+- rewritten core engine for higher performance and new features
+ In detail:
+ * completely rewritten rule execution engine
+ * completely changed output module interface
+ * remodelled output module interface
+ * enabled important output modules to support full concurrent
+ operation
+ The core engine has been considerably changed and must be considered
+ experimental at this stage. Note that it does not yet include all
+ features planned for v8, but is close to this goal. In theory, the
+ engine should perform much better, especially on complex configurations
+ and busy servers. Most importantly, actions instances can now be called
+ concurrently from worker threads and many important output modules
+ support multiple concurrent action instances natively.
+- module omruleset is no longer enabled by default.
+ Note that it has been deprecated in v7 and been replaced by the "call"
+ statement. Also, it can still be build without problems, the option must
+ just explicitly be given.
+---------------------------------------------------------------------------
+Version 7.6.8 [v7.6-stable] 2014-10-??
+- bugfix: typo in queue configuration parameter made parameter unusable
+ Thanks to Bojan Smojver for the patch.
+- bugfix imuxsock: possible segfault when SysSock.Use="off"
+ Thanks to alexjfisher for reporting this issue.
+ closes https://github.com/rsyslog/rsyslog/issues/140
+- bugfix: uninitialized buffer off-by-one error in hostname generation
+ The DNS cache used uninitialized memory, which could lead to
+ invalid hostname generation.
+ Thanks to Jarrod Sayers for alerting us and providing analysis and
+ patch recommendations.
+- remove zpipe (a testing tool) from --enable-diagtools
+ This tool is no longer maintained and currently not used inside the
+ testbench. We keep it in the source tree for the time being in case that
+ it may be used in the future.
+- bugfix: imjournal did not build properly
+ The build succeeded, but the module did not load due to a type in
+ a support function name, which kept unresolved during load.
+- bugfix imklog: pri was miscalculated
+ actually, the pri was totally off the real value for PRIs > 9
+- bugfix rsgtutil: sometimes crashed in verify mode if file did not exist
+- bugfix rsgtutil: some errors/problems at end of file were not reported
+ * The verification function in rsgtutil tool did not report deletion of
+ whole signed blocks of lines from the end of the log file.
+ * The verification function in rsgtutil tool did not report extra
+ (unsigned) lines at the end of the log file.
+ Thanks to Henri Lakk for the patch.
+- bugfix: error: json_tokener_errors undeclared when overriding PKGCONFIG
+ If PKGCONFIG settings for json-c were overridden, presence of
+ json_tokener_errors was not properly detected.
+ closes: https://github.com/rsyslog/rsyslog/issues/143
+ Thanks to Alex Fisher for alerting us and the patch.
+---------------------------------------------------------------------------
+Version 7.6.7 [v7.6-stable] 2014-10-02
+- bugfix: the fix for CVE-2014-3634 did not handle all cases
+ This is corrected now.
+ see also: CVE-2014-3683
+- fixed a build problem on some platforms
+ Thanks to Olaf for the patch
+- behavior change: "msg" of messages with invalid PRI set to "rawmsg"
+ When the PRI is invalid, the rest of the header cannot be valid. So
+ we move all of it to MSG and do not try to parse it out. Note that
+ this is not directly related to the security issue but rather done
+ because it makes most sense.
+---------------------------------------------------------------------------
+Version 7.6.6 [v7.6-stable] 2014-09-30
+- bugfix: potential abort when a message with PRI > 191 was processed
+ if the "pri-text" property was used in active templates, this could
+ be abused to a remote denial of service from permitted senders
+ see also: CVE-2014-3634
+- bugfix: potential segfault on startup on 64 bit systems
+ This happened immediately on startup during config processing. Once
+ rsyslog got past this stage, it could not happen.
+- bugfix: build problems on SuSe Linux
+ Thanks Andreas Stieger for the patch
+---------------------------------------------------------------------------
+Version 7.6.5 [v7.6-stable] 2014-09-17
+- bugfix: in 7.6.4, pri-based filters did not work correctly
+ messages were distributed to the wrong bins.
+- bugfix: build problems on systems without atomic instructions
+ e.g. RHEL 5; backport from v8
+---------------------------------------------------------------------------
+Version 7.6.4 [v7.6-stable] 2014-09-12
+- add --enable-generate-man-pages configure switch (default: enabled)
+ This forces generation of man pages, even if cached ones exists. This
+ "fixes" a typical release tarball nit. While it is hackish, the
+ benefit is clear given the history of failed tarball releases since
+ we changed the cached man page handling. It was just too easy to get
+ that wrong.
+- removed obsolete --disable-fsstnd configure option
+ Thanks to Thomas D. for alerting us.
+ Closes: https://github.com/rsyslog/rsyslog/issues/72
+- permits to build against json-c 0.12
+ Unfortunately, json-c had an ABI breakage, so this is necessary. Note
+ that versions prior to 0.12 had security issues (CVE-2013-6370,
+ CVE-2013-6371) and so it is desirable to link against the new version.
+ Thanks to Thomas D. for the patch. Note that at least some distros
+ have fixed the security issue in older versions of json-c, so this
+ seems to apply mostly when building from sources.
+- new omfile default module parameters
+ * filecreatemode
+ * fileowner
+ * fileownernum
+ * filegroup
+ * filegroupnum
+ * dirowner
+ * dirownernum
+ * dirgroup
+ * dirgroupnum
+ Thanks to Karol Jurak for the patch.
+- bugfix: memory leak in TCP TLS mode
+- bugfix: imfile: if a state file for a different file name was set,
+ that different file (name) was monitored instead of the configured
+ one. Now, the state file is deleted and the correct file monitored.
+ closes: https://github.com/rsyslog/rsyslog/issues/103
+- bugfix: using UUID property could cause segfault
+- bugfix: mmutf8fix did not detect two invalid sequences
+ Thanks to Axel Rau for the patch.
+- bugfix: file descriptor leak with Guardtime signatures
+ When a .gtstate file is opened it is never closed. This is especially
+ bad when dynafiles frequently get evicted from dynafile cache and be
+ re-opened again.
+- bugfix: busy loop in tcp listener when running out of file descriptors
+ Thanks to Susant Sahani for the patch.
+- bugfix: mishandling of input modules not supporting new input instances
+ If they did not support this, accidentally the output module part of the
+ module union was written, leading to unpredictable results. Note: all
+ core modules do support this interface, but some contributed or very
+ old ones do not.
+- bugfix: double-free when ruleset() parser parameters were used
+ While unlikely, this could cause stability issues even after the
+ config phase.
+- bugfix: output modules with parameters with multiple passing modes
+ could caused strange behavior including aborts
+ This was due to the fact that the action module only preserved and
+ processed the last set passing mode. Note that this was not a problem
+ for the plugins provided by the rsyslog git: none of them uses different
+ passing modes.
+ Thanks to Tomas Heinrich for providing a very detailed bug report.
+- various fixes after coverity scan
+ These do not address issues seen in practice but those seen by the tool.
+ Some of them may affect practical deployments.
+ Thanks to Tomas Heinrich for the patches.
+- bugfix imuxsock: "Last message repeated..." was not emitted at shutdown
+ The "Last message repeated..." notice didn't get printed if rsyslog was
+ shut down before the repetition was broken.
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: make dist failed when GUARDTIME or LIBGCRYPT feature was disabled
+- bugfix: mmjsonparse did not build with json-c < 0.10
+ This was a regression introduced some time in the past in order to
+ support API changes in json-c. Now we check for the version and use
+ proper code.
+- bugfix: mmanon did not properly anonymize IP addresses starting with '9'
+ Thanks to defa-at-so36.net for reporting this problem.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=529
+---------------------------------------------------------------------------
+Version 7.6.3 [v7.6-stable] 2014-03-27
+- add capability to override GnuTLS path in build process
+ Thanks to Clayton Shotwell for the patch
+- support for librelp 1.2.5
+ Support new return states of librelp 1.2.5 to emit better error messages
+ For obvious reasons, librelp 1.2.5 is now required.
+- bugfix: ompipe used invalid default template
+ This is a regression from an old change (didn't track it down precisely,
+ but over a year ago). It used the Forwarding template instead of
+ the file template (so we have a full syslog header). This fix corrects
+ it back to previous behavior, but new scripts that used the wrong
+ format may now need to have the RSYSLOG_ForwardingFormat template
+ explicitly be applied.
+ closes: https://github.com/rsyslog/rsyslog/issues/50
+- bugfix: ompipe did emit many suspension messages for /dev/xconsole
+ (hopefully now) closes: https://github.com/rsyslog/rsyslog/issues/35
+ When it was present, but nobody reading from it. The problem
+ is the way the rsyslog v7 engine tries to resolve failures in outputs.
+ It does some retries, and along those lines some state information gets
+ lost and it is close to impossible to retain it. However, the actual
+ root problem is that ompipe does not reliably detect if it is able to
+ recover. The problem here is that it actually does not know this
+ before it does an actual write. These two things together mess up the
+ logic that suppresses invalid resumption/suspension messages
+ (actually, the plugin switches state really that often).
+ Nevertheless, the prime problem with /dev/xconsole (and probably
+ most other pipes as well) is that it gets full. So I have now added
+ code that checks, during resume processing, if the pipe is writable.
+ If it is not, resume is deferred. That should address the case.
+---------------------------------------------------------------------------
+Version 7.6.2 [v7.6-stable] 2014-03-17
+- support for librelp 1.2.4
+ This was necessary due to the problems with librelp 1.2.3 API stability.
+ We now use the new native 1.2.4 APIs to learn about the state of
+ librelp's TLS support.
+ For obvious reasons, librelp 1.2.4 is now required.
+---------------------------------------------------------------------------
+Version 7.6.1 [v7.6-stable] 2014-03-13
+- added "action.reportSuspension" action parameter
+ This now permits to control handling on a per-action basis rather to
+ the previous "global setting only".
+- "action resumed" message now also specifies module type
+ which makes troubleshooting a bit easier. Note that we cannot output all
+ the config details (like destination etc) as this would require much more
+ elaborate code changes, which we at least do not like to do in the
+ stable version.
+- better and more consistent action naming, action queues now always
+ contain the word "queue" after the action name
+- add support for "tls-less" librelp
+ we now require librelp 1.2.3, as we need the new error code definition
+ See also: https://github.com/rsyslog/librelp/issues/1
+- build system improvements
+ * autoconf subdir option
+ * support for newer json-c packages
+ Thanks to Michael Biebl for the patches.
+- imjournal enhancements:
+ * log entries with empty message field are no longer ignored
+ * invalid facility and severity values are replaced by defaults
+ * new config parameters to set default facility and severity
+ Thanks to Tomas Heinrich for implementing this
+- bugfix: ompipe did resume itself even when it was still in error
+ See: https://github.com/rsyslog/rsyslog/issues/35
+ Thanks to github user schplat for reporting
+- bugfix: "action xxx suspended" did report incorrect error code
+- bugfix: ommongodb's template parameter was mandatory but should have
+ been optional
+ Thanks to Alain for the analysis and the patch.
+- bugfix: only partial doc was put into distribution tarball
+ Thanks to Michael Biebl for alerting us.
+ see also: https://github.com/rsyslog/rsyslog/issues/31
+- bugfix: async ruleset did process already-deleted messages
+ Thanks to John Novotny for the patch.
+---------------------------------------------------------------------------
+Version 7.6.0 [v7.6-stable] 2014-02-12
+This starts a new stable branch based on 7.5.8 plus the following changes:
+- bugfix: imuxsock input parameters were not accepted
+ due to copy&paste error. Thanks to Andy Goldstein for the fix.
+- added ProcessInternalMessages global system parameter
+ This permits to inject rsyslog status messages into *another* main
+ syslogd or the journal.
+- new dependency: liblogging-stdlog (for submitting to external logger)
+- bugfix: json templates are improperly created
+ Strings miss the terminating NUL character, which obviously can lead
+ to all sorts of problems.
+ See also: https://github.com/rsyslog/rsyslog/issues/27
+ Thanks to Alain for the analysis and the patch.
+- ompgsql bugfix: improper handling of auto-backgrounding mode
+ If rsyslog was set to auto-background itself (default code behavior, but
+ many distros now turn it off for good reason), ompgsql could not
+ properly connect. This could even lead to a segfault. The core reason
+ was that a PG session handle was kept open over a fork, something that
+ is explicitly forbidden in the PG API.
+ Thanks to Alain for the analysis and the patch.
+---------------------------------------------------------------------------
+Version 7.5.8 [v7-release candidate] 2014-01-09
+- add exec_template() RainerScript function
+- add debug.onShutdown and debug.logFile global parameters
+ These enable the new "debug on shutdown" mode, which can be used to
+ track hard to find problems that occur during system shutdown.
+- Add directives for numerically specifying GIDs/UIDs
+ The already present directives (FileOwner, FileGroup, DirOwner,
+ DirGroup) translate names to numerical IDs, which depends on the user
+ information being available during rsyslog's startup. This can fail if
+ the information is obtained over a network or from a service such as
+ SSSD. The new directives provide a way to specify the numerical IDs
+ directly and bypass the lookup.
+ Thanks to Tomas Heinrich for the patch.
+- actions now report if they suspend and resume themselves
+ this is by default on and controllable by the action.reportSuspension
+ global parameter
+- bugfix: omelasticsearch fail.es stats counter was improperly maintained
+- bugfix: mmrfc5424addhmac: "key" parameter was not properly processed
+- add new impstats action counters:
+ * suspended
+ * suspended.duration
+ * resumed
+---------------------------------------------------------------------------
+Version 7.5.7 [v7-devel] 2013-11-25
+- queue defaults have changed
+ * high water mark is now dynamically 90% of queue size
+ * low water makr is now dynamically 70% of queue size
+ * queue.discardMark is now dynamically 98% of queue size
+ * queue.workerThreadMinimumMessage set to queue.size / num workers
+ For queues with very low queue.maxSize (< 100), "emergency" defaults
+ will be used.
+- worker thread pool handling has been improved
+ Among others, permits pool to actually shrink (was quite hard with
+ previous implementation. This will also improve performance and/or
+ lower system overhead on busy systems.
+ Thanks to Pavel Levshin for the enhancement.
+- bugfix: mmpstrucdata generated inaccessible properties
+- bugfix: RainerScript optimizer did not optimize PRI filters
+ things like "if $syslogfacility-text == "local3"" were not converted
+ to PRIFILT. This was a regression introduced in 7.5.6.
+- bugfix: legacy directive $ActionQueueWorkerThreads was not honored
+- bugfix: segfault on startup when certain script constructs are used
+ e.g. "if not $msg ..."
+- bugfix: ommysql lost configfile/section parameters after first close
+ This means that when a connection was broken, it was probably
+ re-instantiated with different parameters than configured.
+- bugfix: regression in template processing with subtrees in templates
+ Thanks to Pavel Levshin for the fix
+- bugfix: regular worker threads are not properly (re)started if DA
+ mode is active.
+ This occurs only under rare conditions, but definitely is a bug that
+ needed to be addressed. It probably is present since version 4.
+ Note that this patch has not been applied to v7.4-stable, as it
+ is very unlikely to happen and the fix itself has some regression
+ potential (the fix looks very solid, but it addresses a core component).
+ Thanks to Pavel Levshin for the fix
+- now emit warning message if om with msg passing mode uses action queue
+ These can modify the message, and this causes races.
+- bugfix: $SystemLogUseSysTimeStamp/$SystemLogUsePIDFromSystem did not work
+ Thanks to Tomas Heinrich for the patch.
+---------------------------------------------------------------------------
+Version 7.5.6 [devel] 2013-10-29
+- impstats: add capability to bind to a ruleset
+- improved performance of RainerScript variable access
+ by refactoring the whole body of variable handling code. This also
+ solves some of the anomalies experienced in some versions of rsyslog.
+ All variable types are now handled in unified code, including
+ access via templates.
+- RainerScript: make use of 64 bit for numbers where available
+ Thanks to Pavel Levshin for enhancement.
+- slight performance optimization if GCC is used
+ We give branch prediction hints for the frequent RETiRet macro which is
+ used for error handling. Some slight performance gain is to be expected
+ from that.
+- removed global variable support
+ The original idea was not well thought out and global variables, as
+ implemented, worked far different from what anybody would expect. As
+ such, we consider the current approach as an experiment that did not
+ work out and opt to removing it, clearing the way for a better future
+ solution. Note: global vars were introduced in 7.5.3 on Sept, 11th 2013.
+- new module mmsequence, primarily used for action load balancing
+ Thanks to Pavel Levshin for contributing this module.
+- bugfix: unset statement always worked on message var, even if local
+ var was given
+- imudp: support for binding to ruleset added
+- bugfix: segfault if variable was assigned to non-container subtree
+ Thanks to Pavel Levshin for the fix
+- bugfix: imuxsock did not support addtl sockets if syssock was disabled
+ Thanks to Pavel Levshin for the fix
+- bugfix: running imupd on multiple threads lead to segfault if recvmmsg
+ is available
+- bugfix: imudp when using recvmmsg could report wrong sender IP
+- bugfix: segfault if re_extract() function was used and no match found
+- bugfix: omelasticsearch did not compile on platforms without atomic
+ instructions
+- bugfix: potential misaddressing on startup if property-filter was used
+ This could happen if the property name was longer than 127 chars, a case
+ that would not happen in practice.
+- bugfix: invalid property filter was not properly disabled in ruleset
+ Note: the cosmetic memory leak introduced with that patch in 7.4.5 is
+ now also fixed.
+- imported bugfixes from 7.4.6 stable release
+---------------------------------------------------------------------------
+Version 7.5.5 [devel] 2013-10-16
+- imfile: permit to monitor an unlimited number of files
+- imptcp: add "defaultTZ" input parameter
+- imudp: support for multiple receiver threads added
+- imudp: add "dfltTZ" input config parameter
+- bugfix: memory leak in mmnormalize
+- bugfix: mmutf8fix did not properly handle invalid UTF-8 at END of message
+ if the very last character sequence was too long, this was not detected
+ Thanks to Risto Vaarandi for reporting this problem.
+- mmanon: removed the check for specific "terminator characters" after
+ last octet. As it turned out, this didn't work in practice as there
+ was an enormous set of potential terminator chars -- so removing
+ them was the best thing to do. Note that this may change behavior of
+ existing installations. Yet, we still consider this an important
+ bugfix, that should be applied to the stable branch.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=477
+ Thanks to Muri Cicanor for initiating the discussion
+- now requires libestr 0.1.7 as early versions had a nasty bug in
+ string comparisons
+- bugfix: mmanon did not detect all IP addresses in rewrite mode
+ The problem occurred if two IPs were close to each other and the first one
+ was shrunk.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=485
+ Thanks to micah-at-riseup.net for reporting this bug
+- bugfix: mmanon sometimes used invalid replacement char in simple mode
+ depending on configuration sequence, the replacement character was set
+ to 's' instead of the correct value. Most importantly, it was set to
+ 's' if simple mode was selected and no replacement char set.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=484
+ Thanks to micah-at-riseup.net for reporting this bug
+- bugfix: memory leak in mmnormalize
+- bugfix: array-based ==/!= comparisons lead to invalid results
+ This was a regression introduced in 7.3.5 bei the PRI optimizer
+---------------------------------------------------------------------------
+Version 7.5.4 [devel] 2013-10-07
+- mmpstrucdata: new module to parse RFC5424 structured data into json
+ message properties
+- change main/ruleset queue defaults to be more enterprise-like
+ new defaults are queue.size 100,000 max workers 2, worker
+ activation after 40,000 msgs are queued, batch size 256. These settings
+ are much more useful for enterprises and will not hurt low-end systems
+ that much. This is part of our re-focus on enterprise needs.
+- omfwd: new action parameter "maxErrorMessages" added
+- omfile: new module parameters to set action defaults added
+ * dirCreateMode
+ * fileCreateMode
+- mmutf8fix: new module to fix invalid UTF-8 sequences
+- imuxsock: handle unlimited number of additional listen sockets
+- doc: improve usability by linking to relevant web resources
+ The idea is to enable users to quickly find additional information,
+ samples, HOWTOs and the like on the main site.
+ At the same time, (very) slightly remove memory footprint when
+ few listeners are monitored.
+- bugfix: omfwd parameter streamdrivermode was not properly handled
+ it was always overwritten by whatever value was set via the
+ legacy directive $ActionSendStreamDriverMode
+- imtcp: add streamdriver.name module parameter
+ permits overriding the system default stream driver (gtls, ptcp)
+- bugfix: build system: libgcrypt.h needed even if libgrcypt was disabled
+ Thanks to Jonny Törnbom for reporting this problem
+- imported bugfixes from 7.4.4
+---------------------------------------------------------------------------
+Version 7.5.3 [devel] 2013-09-11
+- imfile: support for escaping LF characters added
+ embedded LF in syslog messages cause a lot of trouble. imfile now has
+ the capability to escape them to "#012" (just like the regular control
+ character escape option). This requires new-style input statements to be
+ used. If legacy configuration statements are used, LF escaping is always
+ turned off to preserve compatibility.
+ NOTE: if input() statements were already used, there is a CHANGE OF
+ BEHAVIOR: starting with this version, escaping is enabled by
+ default. So if you do not want it, you need to add
+ escapeLF="off"
+ to the input statement. Given the trouble LFs cause and the fact
+ that the majority of installations still use legacy config, we
+ considered this behavior change acceptable and useful.
+ see also: http://blog.gerhards.net/2013/09/imfile-multi-line-messages.html
+- add support for global and local variables
+- bugfix: queue file size was not correctly processed
+ this could lead to using one queue file per message for sizes >2GiB
+ Thanks to Tomas Heinrich for the patch.
+- add main_queue() configuration object to configure main message queue
+- bugfix: stream compression in imptcp caused timestamp to be corrupted
+- imudp: add ability to specify SO_RCVBUF size (rcvbufSize parameter)
+- imudp: use inputname for statistics, if configured
+- impstats: add process resource usage counters [via getrusage()]
+- impstats: add parameter "resetCounters" to report delta values
+ possible for most, but not all, counters. See doc for details.
+- librelp 1.2.0 is now required
+- make use of new librelp generic error reporting facility
+ This leads to more error messages being passed to the user and
+ thus simplified troubleshooting.
+- bugfix: very small memory leak in imrelp
+ more or less cosmetic, a single memory block was not freed, but this
+ only happens immediately before termination (when the OS automatically
+ frees all memory). Still an annoyance e.g. in valgrind.
+- fix compile problem in debug build
+- imported fixes from 7.4.4
+---------------------------------------------------------------------------
+Version 7.5.2 [devel] 2013-07-04
+- librelp 1.1.4 is now required
+ We use API extensions for better error reporting and higher performance.
+- omrelp: use transactional mode to make imrelp emit bulk sends
+- omrelp: add "windowSize" parameter to set custom RELP window size
+- bugfix: double-free in omelasticsearch
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=461
+ a security advisory for this bug is available at:
+ http://www.lsexperts.de/advisories/lse-2013-07-03.txt
+ CVE: CVE-2013-4758
+ PLEASE NOTE: This issue only existed if omelasticsearch was used
+ in a non-default configuration, where the "errorfile" parameter
+ was specified. Without that parameter set, the bug could not
+ be triggered.
+ Thanks to Markus Vervier and Marius Ionescu for providing a detailed
+ bug report. Special thanks to Markus for coordinating his security
+ advisory with us.
+- doc: fixed various typos
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=391
+ Thanks to Georgi Georgiev for the patch.
+---------------------------------------------------------------------------
+Version 7.5.1 [devel] 2013-06-26
+- librelp 1.1.3 is required - older versions can lead to a segfault
+- add mmfields, which among others supports easy parsing of CEF messages
+- omrelp:
+ * new parameter "compression.prioritystring" to control encryption
+ parameters used by GnuTLS
+- imrelp:
+ * new parameter "compression.dhbits" to control the number of
+ bits being used for Diffie-Hellman key generation
+ * new parameter "compression.prioritystring" to control encryption
+ parameters used by GnuTLS
+ * support for impstats added
+ * support for setting permitted peers (client authentication) added
+ * bugfix: potential segfault at startup on invalid config parameters
+- imjournal: imported patches from 7.4.1
+- omprog: add support for command line parameters
+- added experimental TCP stream compression (imptcp only, currently)
+- added BSD-specific syslog facilities
+ * "console"
+ * "bsd_security" - this is called "security" under BSD, but that name
+ was unfortunately already taken by some standard facility. So I
+ did the (hopefully) second-best thing and renamed it a little.
+- imported fixes from 7.4.2 (especially build problems on FreeBSD)
+- bugfix: imptcp did not properly initialize compression status variable
+ could lead to segfault if stream:always compression mode was selected
+---------------------------------------------------------------------------
+Version 7.5.0 [devel] 2013-06-11
+- imrelp: implement "ruleset" module parameter
+- imrelp/omrelp: add TLS & compression (zip) support
+- omrelp: add "rebindInterval" parameter
+- add -S command line option to specify IP address to use for RELP client
+ connections
+ Thanks to Axel Rau for the patch.
+---------------------------------------------------------------------------
+Version 7.4.11 [v7.4-stable] *never released*
+- imjournal enhancements:
+ * log entries with empty message field are no longer ignored
+ * invalid facility and severity values are replaced by defaults
+ * new config parameters to set default facility and severity
+ Thanks to Tomas Heinrich for implementing this
+---------------------------------------------------------------------------
+Version 7.4.10 [v7.4-stable] 2014-02-12
+- bugfix: json templates are improperly created
+ Strings miss the terminating NUL character, which obviously can lead
+ to all sorts of problems.
+ See also: https://github.com/rsyslog/rsyslog/issues/27
+ Thanks to Alain for the analysis and the patch.
+- ompgsql bugfix: improper handling of auto-backgrounding mode
+ If rsyslog was set to auto-background itself (default code behavior, but
+ many distros now turn it off for good reason), ompgsql could not
+ properly connect. This could even lead to a segfault. The core reason
+ was that a PG session handle was kept open over a fork, something that
+ is explicitly forbidden in the PG API.
+ Thanks to Alain for the analysis and the patch.
+---------------------------------------------------------------------------
+Version 7.4.9 [v7.4-stable] 2014-01-22
+- added ProcessInternalMessages global system parameter
+ This permits to inject rsyslog status messages into *another* main
+ syslogd or the journal.
+- new dependency: liblogging-stdlog (for submitting to external logger)
+- bugfix: imuxsock input parameters were not accepted
+ due to copy&paste error. Thanks to Andy Goldstein for the fix.
+- bugfix: potential double-free in RainerScript equal comparison
+ happens if the left-hand operand is JSON object and the right-hand
+ operand is a non-string that does not convert to a number (for
+ example, it can be another JSON object, probably the only case that
+ could happen in practice). This is very unlikely to be triggered.
+- bugfix: some RainerScript Json(Variable)/string comparisons were wrong
+---------------------------------------------------------------------------
+Version 7.4.8 [v7.4-stable] 2014-01-08
+- rsgtutil provides better error messages on unfinished signature blocks
+- bugfix: guard against control characters in internal (error) messages
+ Thanks to Ahto Truu for alerting us.
+- bugfix: immark did emit messages under kern.=info instead of syslog.=info
+ Note that his can potentially break existing configurations that
+ rely on immark sending as kern.=info. Unfortunately, we cannot leave
+ this unfixed as we never should emit messages under the kern facility.
+---------------------------------------------------------------------------
+Version 7.4.7 [v7.4-stable] 2013-12-10
+- bugfix: limiting queue disk space did not work properly
+ * queue.maxdiskspace actually initializes queue.maxfilesize
+ * total size of queue files was not checked against
+ queue.maxdiskspace for disk assisted queues.
+ Thanks to Karol Jurak for the patch.
+- bugfix: linux kernel-like ratelimiter did not work properly with all
+ inputs (for example, it did not work with imdup). The reason was that
+ the PRI value was used, but that needed parsing of the message, which
+ was done too late.
+- bugfix: disk queues created files in wrong working directory
+ if the $WorkDirectory was changed multiple times, all queues only
+ used the last value set.
+- bugfix: legacy directive $ActionQueueWorkerThreads was not honored
+- bugfix: segfault on startup when certain script constructs are used
+ e.g. "if not $msg ..."
+- bugfix: imuxsock: UseSysTimeStamp config parameter did not work correctly
+ Thanks to Tomas Heinrich for alerting us and providing a solution
+ suggestion.
+- bugfix: $SystemLogUseSysTimeStamp/$SystemLogUsePIDFromSystem did not work
+ Thanks to Tomas Heinrich for the patch.
+- improved checking of queue config parameters on startup
+- bugfix: call to ruleset with async queue did not use the queue
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=443
+- bugfix: if imtcp is loaded and no listeners are configured (which is
+ uncommon), rsyslog crashes during shutdown.
+---------------------------------------------------------------------------
+Version 7.4.6 [v7.4-stable] 2013-10-31
+- bugfix: potential abort during HUP
+ This could happen when one of imklog, imzmq3, imkmsg, impstats,
+ imjournal, or imuxsock were under heavy load during a HUP.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=489
+ Thanks to Guy Rozendorn for reporting the problem and Peval Levshin for
+ his analysis.
+- bugfix: imtcp flowControl parameter incorrectly defaulted to "off"
+ This could cause message loss on systems under heavy load and was
+ a change-of-behavior to previous version. This is a regression
+ most probably introduced in 5.9.0 (but did not try hard to find the
+ exact point of its introduction).
+- now requires libestr 0.1.9 as earlier versions lead to problems with
+ number handling in RainerScript
+- bugfix: memory leak in strlen() RainerScript function
+ Thanks to Gregoire Seux for reporting this bug.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=486
+- bugfix: buffer overrun if re_extract function was called for submatch 50
+ Thanks to Pavel Levshin for reporting the problem and its location.
+- bugfix: memleak in re_extract() function
+ Thanks to Pavel Levshin for reporting this problem.
+- bugfix: potential abort in RainerScript optimizer
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=488
+ Thanks to Thomas Doll for reporting the problem and Pavel Levshin for
+ fixing it.
+- bugfix: memory leak in omhiredis
+ Thanks to Pavel Levshin for the fix
+- bugfix: segfault if variable was assigned to non-container subtree
+ Thanks to Pavel Levshin for the fix
+---------------------------------------------------------------------------
+Version 7.4.5 [v7.4-stable] 2013-10-22
+- mmanon: removed the check for specific "terminator characters" after
+ last octet. As it turned out, this didn't work in practice as there
+ was an enormous set of potential terminator chars -- so removing
+ them was the best thing to do. Note that this may change behavior of
+ existing installations. Yet, we still consider this an important
+ bugfix, that should be applied to the stable branch.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=477
+ Thanks to Muri Cicanor for initiating the discussion
+- now requires libestr 0.1.8 as early versions had a nasty bug in
+ string comparisons
+- omelasticsearch: add failed.httprequests stats counter
+- bugfix: invalid property filter was not properly disabled in ruleset
+ Note that this bugfix introduces a very slight memory leak, which is
+ cosmetic, as it just holds data until termination that is no longer
+ needed. It is just the part of the config that was invalid. We will
+ "fix" this "issue" in the devel version first, as the fix is a bit
+ too intrusive to do without hard need in the stable version.
+- bugfix: segfault if re_extract() function was used and no match found
+- bugfix: potential misaddressing on startup if property-filter was used
+ This could happen if the property name was longer than 127 chars, a case
+ that would not happen in practice.
+- bugfix: omelasticsearch: correct failed.http stats counter
+- bugfix: omelasticsearch: did not correctly initialize stats counters
+- bugfix: omelasticsearch: failed.es counter was only maintained in bulk mode
+ This usually did not lead to any problems, because they are in static
+ memory, which is initialized to zero by the OS when the plugin is
+ loaded. But it may cause problems especially on systems that do not
+ support atomic instructions - in this case the associated mutexes also
+ did not get properly initialized.
+- bugfix: mmanon did not detect all IP addresses in rewrite mode
+ The problem occurred if two IPs were close to each other and the first one
+ was shrunk.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=485
+ Thanks to micah-at-riseup.net for reporting this bug
+- bugfix: mmanon sometimes used invalid replacement char in simple mode
+ depending on configuration sequence, the replacement character was set
+ to 's' instead of the correct value. Most importantly, it was set to
+ 's' if simple mode was selected and no replacement char set.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=484
+ Thanks to micah-at-riseup.net for reporting this bug
+- bugfix: memory leak in mmnormalize
+- bugfix: array-based ==/!= comparisons lead to invalid results
+ This was a regression introduced in 7.3.5 bei the PRI optimizer
+- bugfix: omprog blocked signals to executed programs
+ The made it impossible to send signals to programs executed via
+ omprog.
+ Thanks to Risto Vaarandi for the analysis and a patch.
+- bugfix: doc: imuxsock legacy param $SystemLogSocketParseTrusted was
+ misspelled
+ Thanks to David Lang for alerting us
+- bugfix: imfile "facility" input parameter improperly handled
+ caused facility not to be set, and severity to be overwritten with
+ the facility value.
+ Thanks to forum user dmunny for reporting this bug.
+- bugfix: small memory leak in imfile when $ResetConfigVariables was used
+ Thanks to Grégory Nuyttens for reporting this bug and providing a fix
+- bugfix: segfault on startup if TLS was used but no CA cert set
+- bugfix: segfault on startup if TCP TLS was used but no cert or key set
+- bugfix: some more build problems with newer json-c versions
+ Thanks to Michael Biebl for mentioning the problem.
+- bugfix: build system: libgcrypt.h needed even if libgrcypt was disabled
+ Thanks to Jonny Törnbom for reporting this problem
+---------------------------------------------------------------------------
+Version 7.4.4 [v7.4-stable] 2013-09-03
+- better error messages in GuardTime signature provider
+ Thanks to Ahto Truu for providing the patch.
+- make rsyslog use the new json-c pkgconfig file if available
+ Thanks to the Gentoo team for the patches.
+- bugfix: imfile parameter "persistStateInterval" was unusable
+ due to a case typo in imfile; work-around was to use legacy config
+ Thanks to Brandon Murphy for reporting this bug.
+- bugfix: TLV16 flag encoding error in signature files from GT provider
+ This fixes a problem where the TLV16 flag was improperly encoded.
+ Unfortunately, existing files already have the bug and may not properly
+ be processed. The fix uses constants from the GuardTime API lib to
+ prevent such problems in the future.
+ Thanks to Ahto Truu for providing the patch.
+- bugfix: slightly malformed SMTP handling in ommail
+- bugfix: segfault in omprog if no template was provided (now dflt is used)
+- bugfix: segfault in ompipe if no template was provided (now dflt is used)
+- bugfix: segfault in omsnmp if no template was provided (now dflt is used)
+- bugfix: some omsnmp optional config params were flagged as mandatory
+- bugfix: segfault in omelasticsearch when resuming queued messages
+ after restarting Elasticsearch
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=464
+- bugfix: imtcp addtlframedelimiter could not be set to zero
+ Thanks to Chris Norton for alerting us.
+- doc bugfix: remove no-longer existing omtemplate from developer doc
+ was specifically mentioned as a sample for creating new plugins
+ Thanks to Yannick Brosseau for alerting us of this problem.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=473
+---------------------------------------------------------------------------
+Version 7.4.3 [v7.4-stable] 2013-07-18
+- bugfix: queue file size was not correctly processed
+ this could lead to using one queue file per message for sizes >2GiB
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: $QHOUR/$HHOUR were always "00" or "01"
+ regression some time between v5 and here
+ Thanks to forum user rjmcinty for reporting this bug
+- bugfix: testbench tool chkseq did improperly report invalid file
+ This happened when permitted duplicate values existed in the very
+ last lines, right before end-of-file.
+ Thanks to Radu Gheorghe for reporting this bug.
+---------------------------------------------------------------------------
+Version 7.4.3 [v7.4-stable] 2013-07-18
+- bugfix: memory leak if disk queues were used and json data present
+- bugfix: CEE/json data was lost during disk queue operation
+- bugfix: potential segfault during startup on invalid config
+ could happen if invalid actions were present, which could lead
+ to improper handling in optimizer.
+- bugfix: 100% CPU utilization when DA queue became full
+- bugfix: omlibdbi did not properly close connection on some errors
+ This happened to errors occurring in Begin/End Transaction entry
+ points.
+- cosmetic bugfix: file name buffer was not freed on disk queue destruction
+ This was an extremely small one-time per run memleak, so nothing of
+ concern. However, it bugs under valgrind and similar memory debuggers.
+- fix build on FreeBSD
+ Thanks to Christiano Rolim for the patch
+---------------------------------------------------------------------------
+Version 7.4.2 [v7.4-stable] 2013-07-04
+- bugfix: in RFC5425 TLS, multiple wildcards in auth could cause segfault
+- bugfix: RainerScript object required parameters were not properly
+ checked - this could result to segfaults on startup if parameters
+ were missing.
+- bugfix: double-free in omelasticsearch
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=461
+ a security advisory for this bug is available at:
+ http://www.lsexperts.de/advisories/lse-2013-07-03.txt
+ CVE: CVE-2013-4758
+ PLEASE NOTE: This issue only existed if omelasticsearch was used
+ in a non-default configuration, where the "errorfile" parameter
+ was specified. Without that parameter set, the bug could not
+ be triggered.
+ Thanks to Markus Vervier and Marius Ionescu for providing a detailed
+ bug report. Special thanks to Markus for coordinating his security
+ advisory with us.
+- bugfix: omrelp potential segfault at startup on invalid config parameters
+- bugfix: small memory leak when $uptime property was used
+- bugfix: potential segfault on rsyslog termination in imudp
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=456
+- bugfix: lmsig_gt abort on invalid configuration parameters
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=448
+ Thanks to Risto Laanoja for the patch.
+- imtcp: fix typo in "listner" parameter, which is "listener"
+ Currently, both names are accepted.
+- solved build problems on FreeBSD
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=457
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=458
+ Thanks to Christiano for reporting and suggesting patches
+- solved build problems on CENTOS5
+---------------------------------------------------------------------------
+Version 7.4.1 [v7.4-stable] 2013-06-17
+- imjournal: add ratelimiting capability
+ The original imjournal code did not support ratelimiting at all. We
+ now have our own ratelimiter. This can mitigate against journal
+ database corruption, when the journal re-sends old data. This is a
+ current bug in systemd journal, but we won't outrule this to happen
+ in the future again. So it is better to have a safeguard in place.
+ By default, we permit 20,000 messages within 10 minutes. This may
+ be a bit restrictive, but given the risk potential it seems reasonable.
+ Users requiring larger traffic flows can always adjust the value.
+- bugfix: potential loop in rate limiting
+ if the message that tells about rate-limiting gets rate-limited itself,
+ it will potentially create and endless loop
+- bugfix: potential segfault in imjournal if journal DB is corrupted
+- bugfix: prevent a segfault in imjournal if state file is not defined
+- bugfix imzmq3: potential segfault on startup
+ if no problem happened at startup, everything went fine
+ Thanks to Hongfei Cheng and Brian Knox for the patch
+---------------------------------------------------------------------------
+Version 7.4.0 [v7.4-stable] 2013-06-06
+This starts a new stable branch based on 7.3.15 plus the following changes:
+- add --enable-cached-man-pages ./configure option
+ permits to build rsyslog on a system where rst2man is not installed. In
+ that case, cached versions of the man pages are used (they were built
+ during "make dist", so they should be current for the version in
+ question.
+- doc bugfix: ReadMode wrong in imfile doc, two values were swapped
+ Thanks to jokajak@gmail.com for mentioning this
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=450
+- imjournal: no longer do periodic wakeup
+- bugfix: potential hang *in debug mode* on rsyslogd termination
+ This ONLY affected rsyslogd if it were running with debug output
+ enabled.
+- bugfix: $template statement with multiple spaces lead to invalid tpl name
+ If multiple spaces were used in front of the template name, all but one
+ of them became actually part of the template name. So
+ $template a,"..." would be name " a", and as such "a" was not
+ available, e.g. in
+ *.* /var/log/file;a
+ This is a legacy config problem. As it was unreported for many years,
+ no backport of the fix to old versions will happen.
+ This is a long-standing bug that was only recently reported by forum
+ user mc-sim.
+ Reference: http://kb.monitorware.com/post23448.html
+- 0mq fixes; credits to Hongfei Cheng and Brian Knox
+---------------------------------------------------------------------------
+Version 7.3.15 [beta] 2013-05-15
+- bugfix: problem in build system (especially when cross-compiling)
+ Thanks to Tomas Heinrich and winfried_mb2@xmsnet.nl for the patch.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=445
+- bugfix: imjournal had problem with systemd journal API change
+- imjournal: now obtain and include PID
+- bugfix: .logsig files had tlv16 indicator bit at wrong offset
+- bugfix: omrelp legacy config parameters set a timeout of zero
+ which lead the legacy config to be unusable.
+- bugfix: segfault on startup if a disk queue was configure without file
+ name
+ Now this triggers an error message and the queue is changed to
+ linkedList type.
+- bugfix: invalid addressing in string class (recent regression)
+---------------------------------------------------------------------------
+Version 7.3.14 [beta] 2013-05-06
+- bugfix: some man pages were not properly installed
+ either rscryutil or rsgtutil man was installed, but not both
+ Thanks to Marius Tomaschewski for the patch.
+- bugfix: potential segfault on startup when builtin module was specified
+ in module() statement.
+ Thanks to Marius Tomaschewski for reporting the bug.
+- bugfix: segfault due to invalid dynafile cache handling
+ Accidentally, the old-style cache size parameter was used when the
+ dynafile cache was created in a RainerScript action. If the old-style
+ size was lower than the one actually set, this lead to misaddressing
+ when the size was overrun, and that could lead to all kinds of
+ "interesting things", often in segfaults.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=440
+---------------------------------------------------------------------------
+Version 7.3.13 [beta] 2013-04-29
+- added omrabbitmq module (contributed, untested)
+ Note: this is unsupported and as such was moved immediately into the
+ beta version.
+ Thanks to Vaclav Tomec for providing this module.
+- bugfix: build problem when --enable-encryption was not selected
+ Thanks to Michael Biebl for fixing this.
+- doc bugfix: omfile parameter "VeryRobustZip" was documented as
+ "VeryReliableZip"
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=437
+ Thanks to Thomas Doll for reporting this.
+---------------------------------------------------------------------------
+Version 7.3.12 [devel] 2013-04-25
+- added doc for omelasticsearch
+ Thanks to Radu Gheorghe for the doc contribution.
+- omelasticsearch: _id field support for bulk operations
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=392
+ Thanks to Jérôme Renard for the idea and patches.
+- max number of templates for plugin use has been increased to five
+- platform compatibility enhancement: solve compile issue with libgcrypt
+ do not use GCRY_CIPHER_MODE_AESWRAP where not available
+- fix compile on Solaris
+ Thanks to Martin Carpenter for the patch.
+- bugfix: off-by-one error in handling local FQDN name (regression)
+ A temporary buffer was allocated one byte too small. Did only
+ affect startup, not actual operations. Came up during routine tests,
+ and can have no effect once the engine runs. Bug was introduced in
+ 7.3.11.
+- bugfix: build problems on Solaris
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=436
+- bugfix: block size limit was not properly honored
+- bugfix: potential segfault in guardtime signature provider
+ it could segfault if an error was reported by the GuardTime API, because
+ an invalid free could happen then
+---------------------------------------------------------------------------
+Version 7.3.11 [devel] 2013-04-23
+- added support for encrypting log files
+- omhiredis: added support for redis pipeline support
+ Thanks to Brian Knox for the patch.
+- bugfix: $PreserveFQDN is not properly working
+ Thanks to Louis Bouchard for the patch
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=426
+- bugfix: imuxsock aborted due to problem in ratelimiting code
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: imuxsock aborted under some conditions
+ regression from ratelimiting enhancements - this was a different one
+ to the one Tomas Heinrich patched.
+- bugfix: timestamp problems in imkmsg
+---------------------------------------------------------------------------
+Version 7.3.10 [devel] 2013-04-10
+- added RainerScript re_extract() function
+- omrelp: added support for RainerScript-based configuration
+- omrelp: added ability to specify session timeout
+- templates now permit substring extraction relative to end-of-string
+- bugfix: failover/action suspend did not work correctly
+ This was experienced if the retry action took more than one second
+ to complete. For suspending, a cached timestamp was used, and if the
+ retry took longer, that timestamp was already in the past. As a
+ result, the action never was kept in suspended state, and as such
+ no failover happened. The suspend functionality now does no longer use
+ the cached timestamp (should not have any performance implication, as
+ action suspend occurs very infrequently).
+- bugfix: gnutls RFC5425 driver had some undersized buffers
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: nested if/prifilt conditions did not work properly
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=415
+- bugfix: imuxsock aborted under some conditions
+ regression from ratelimiting enhancements
+- bugfix: build problems on Solaris
+ Thanks to Martin Carpenter for the patches.
+---------------------------------------------------------------------------
+Version 7.3.9 [devel] 2013-03-27
+- support for signing logs added
+- imudp: now supports user-selectable inputname
+- omlibdbi: now supports transaction interface
+ if recent enough lbdbi is present
+- imuxsock: add ability to NOT create/delete sockets during startup and
+ shutdown
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=259
+- imfile: errors persisting state file are now reported
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=292
+- imfile: now detects file change when rsyslog was inactive
+ Previously, this case could not be detected, so if a file was overwritten
+ or rotated away while rsyslog was stopped, some data was missing. This
+ is now detected and the new file being forwarded right from the
+ beginning.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=228
+- updated systemd files to match current systemd source
+- bugfix: imudp scheduling parameters did affect main thread, not imudp
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=409
+- bugfix: build problem on platforms without GLOB_NOMAGIC
+- bugfix: build problems on non-Linux platforms
+- bugfix: stdout/stderr were not closed on forking
+ but were closed when running in the foreground - this was just reversed
+ of what it should be. This is a regression of a recent change.
+---------------------------------------------------------------------------
+Version 7.3.8 [devel] 2013-03-18
+- imrelp: now supports listening to IPv4/v6 only instead of always both
+ build now requires librelp 1.0.2
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=378
+- bugfix: mmanon did not build on some platforms (e.g. Ubuntu)
+- bugfix: segfault in expression optimizer
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=423
+- bugfix: imuxsock was missing SysSock.ParseTrusted module parameter
+ To use that functionality, legacy rsyslog.conf syntax had to be used.
+ Also, the doc was missing information on the "ParseTrusted" set of
+ config directives.
+- bugfix: include files got included in the wrong order
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=411
+ This happens if an $IncludeConfig directive was done on multiple
+ files (e.g. the distro default of $IncludeConfig /etc/rsyslog.d/*.conf).
+ In that case, the order of include file processing is reversed, which
+ could lead to all sorts of problems.
+ Thanks to Nathan Stratton Treadway for his great analysis of the problem,
+ which made bug fixing really easy.
+---------------------------------------------------------------------------
+Version 7.3.7 [devel] 2013-03-12
+- add support for anonymizing IPv4 addresses
+- add support for writing to the Linux Journal (omjournal)
+- imuxsock: add capability to ignore messages from ourselves
+ This helps prevent message routing loops, and is vital to have
+ if omjournal is used together with traditional syslog.
+- field() function now supports a string as field delimiter
+- added ability to configure debug system via rsyslog.conf
+- bugfix: imuxsock segfault when system log socket was used
+- bugfix: mmjsonparse segfault if new-style config was used
+- bugfix: script == comparison did not work properly on JSON objects
+- bugfix: field() function did never return "***FIELD NOT FOUND***"
+ instead it returned "***ERROR in field() FUNCTION***" in that case
+---------------------------------------------------------------------------
+Version 7.3.6 [devel] 2013-01-28
+- greatly improved speed of large-array [N]EQ RainerScript comparisons
+ Thanks to David Lang for a related discussion that inspired the idea
+ to do this with a much simpler (yet sufficient) approach than originally
+ planned for.
+- greatly improved speed of DNS cache for large cache sizes
+- general performance improvements
+- omfile: added stats counters for dynafile caches
+- omfile: improved async writing, finally enabled full async write
+ also fixed a couple of smaller issues along that way
+- impstats: added ability to write stats records to local file
+ and avoid going through the syslog log stream. syslog logging can now
+ also be turned off (see doc for details).
+- bugfix: imklog issued wrong facility in error messages
+ ...what could lead to problems in other parts of the code
+- fix compile problem in imklog
+- added capability to output thread-id-to-function debug info
+ This is a useful debug aid, but nothing of concern for regular users.
+---------------------------------------------------------------------------
+Version 7.3.5 [devel] 2012-12-19
+- ommysql: addded batching/transaction support
+- enhanced script optimizer to optimize common PRI-based comparisons
+ These constructs are especially used in SUSE default config files,
+ but also by many users (as they are more readable than the equivalent
+ PRI-based filter).
+- omudpspoof: add support for new config system
+- omudpspoof: add support for packets larger than 1472 bytes
+ On Ethernet, they need to be transmitted in multiple fragments. While
+ it is known that fragmentation can cause issues, it is the best choice
+ to be made in that case. Also improved debug output.
+- bugfix: omudpspoof failed depending on the execution environment
+ The v7 engine closes fds, and closed some of libnet's fds as well, what
+ lead to problems (unfortunately, at least some libnet versions do not
+ report a proper error state but still "success"...). The order of libnet
+ calls has been adjusted to by in sync with what the core engine does.
+- bugfix: segfault on imuxsock startup if system log socket is used
+ and no ratelimiting supported. Happens only during initial config
+ read phase, once this is over, everything works stable.
+- bugfix: mmnormalize build problems
+- bugfix: mmnormalize could abort rsyslog if config parameter was in error
+- bugfix: no error message for invalid string template parameters
+ rather a malformed template was generated, and error information emitted
+ at runtime. However, this could be quite confusing. Note that with this
+ "bugfix" user experience changes: formerly, rsyslog and the affected
+ actions properly started up, but the actions did not produce proper
+ data. Now, there are startup error messages and the actions are NOT
+ executed (due to missing template due to template error).
+- bugfix[minor]: invalid error code when mmnormalize could not access
+ rulebase
+- bugfix(kind of): script optimizer did not work for complex boolean
+ expressions
+- doc bugfix: corrections and improvements in mmnormalize html doc page
+- bugfix: some message properties could be garbled due to race condition
+ This happened only on very high volume systems, if the same message was
+ being processed by two different actions. This was a regression caused
+ by the new config processor, which did no longer properly enable msg
+ locking in multithreaded cases. The bugfix is actually a refactoring of
+ the msg locking code - we no longer do unlocked operations, as the use
+ case for it has mostly gone away. It is potentially possible only at
+ very low-end systems, and there the small additional overhead of doing
+ the locking does not really hurt. Instead, the removal of that
+ capability can actually slightly improve performance in common cases,
+ as the code path is smaller and requires slightly less memory writes.
+ That probably outperforms the extra locking overhead (which in the
+ low-end case always happens in user space, without need for kernel
+ support as we can always directly acquire the lock - there is no
+ contention at all).
+- build system cleanup (thanks to Michael Biebl for this!)
+- bugfix: omelasticsearch did not properly compile on some platforms
+ due to missing libmath. Thanks to Michael Biebl for the fix
+---------------------------------------------------------------------------
+Version 7.3.4 [devel] 2012-11-23
+- further (and rather drastically) improved disk queue performance
+ we now save one third of the IO calls
+- imklog: added ParseKernelTimestamp parameter (import from 5.10.2)
+ Thanks to Marius Tomaschewski for the patch.
+- imklog: added KeepKernelTimestamp parameter (import from 5.10.2)
+ Thanks to Marius Tomaschewski for the patch.
+- bugfix: improper handling of backslash in string-type template()s
+- bugfix: leading quote (") in string-type template() lead to tight loop
+ on startup
+- bugfix: no error msg on invalid field option in legacy/string template
+- bugfix: imklog mistakenly took kernel timestamp subseconds as nanoseconds
+ ... actually, they are microseconds. So the fractional part of the
+ timestamp was not properly formatted. (import from 5.10.2)
+ Thanks to Marius Tomaschewski for the bug report and the patch idea.
+---------------------------------------------------------------------------
+Version 7.3.3 [devel] 2012-11-07
+- improved disk queue performance
+- bugfix: dynafile zip files could be corrupted
+ This could happen if a dynafile was destructed before the first write.
+ In practice, this could happen if few lines were written to a file and
+ it then became evicted from the dynafile cache. This would probably
+ look very random, because it depended on the timing in regard to
+ message volume and dynafile cache size.
+---------------------------------------------------------------------------
+Version 7.3.2 [devel] 2012-10-30
+- mmnormalize: support for v6+ config interface added
+- mmjsonparse: support for v6+ config interface added
+---------------------------------------------------------------------------
+Version 7.3.2 [devel] 2012-10-30
+- totally reworked ratelimiting and "last message repeated n times"
+ all over rsyslog code. Each of the supported inputs now supports
+ linux-like ratelimiting (formerly only imuxsock did). Also, the
+ "last message repeated n times" is now processed at the input side
+ and no longer at the output side of rsyslog processing. This
+ provides the basis for new future additions as well as usually more
+ performance and a much simpler output part (which can be even further
+ refactored).
+- imtcp: support for Linux-Type ratelimiting added
+- imptcp: support for Linux-Type ratelimiting added
+- imudp enhancements:
+ * support for input batching added (performance improvement)
+ * support for Linux-Type ratelimiting added
+- permited action-like statements (stop, call, ...) in action lists
+- bugfix: segfault on startup when modules using MSG_PASSING mode are used
+- omelasticsearch: support for writing data errors to local file added
+- omelasticsearch: fix check for bulk processing status response
+---------------------------------------------------------------------------
+Version 7.3.1 [devel] 2012-10-19
+- optimized template processing performance, especially for $NOW family
+ of properties
+- change lumberjack cookie to "@cee:" from "@cee: "
+ CEE originally specified the cookie with SP, whereas other lumberjack
+ tools used it without space. In order to keep interop with lumberjack,
+ we now use the cookie without space as well. I hope this can be changed
+ in CEE as well when it is released at a later time.
+ Thanks to Miloslav Trmač for pointing this out and a similar v7 patch.
+- bugfix: imuxsock and imklog truncated head of received message
+ This happened only under some circumstances. Thanks to Marius
+ Tomaschewski, Florian Piekert and Milan Bartos for their help in
+ solving this issue.
+- bugfix: imuxsock did not properly honor $LocalHostIPIF
+---------------------------------------------------------------------------
+Version 7.3.0 [devel] 2012-10-09
+- omlibdbi improvements, added
+ * support for config load phases & module() parameters
+ * support for default templates
+ * driverdirectory is now cleanly a global parameter, but can no longer
+ be specified as an action parameter. Note that in previous versions
+ this parameter was ignored in all but the first action definition
+- improved omfile zip writer to increase compression
+ This was achieved by somewhat reducing the robustness of the zip archive.
+ This is controlled by the new action parameter "VeryReliableZip".
+----------------------------------------------------------------------------
+Version 7.2.8 [v7-stable] 2013-0?-??
+- bugfix: potential segfault on startup when builtin module was specified
+ in module() statement.
+ Thanks to Marius Tomaschewski for reporting the bug.
+- bugfix: segfault due to invalid dynafile cache handling
+ Accidentally, the old-style cache size parameter was used when the
+ dynafile cache was created in a RainerScript action. If the old-style
+ size was lower than the one actually set, this lead to misaddressing
+ when the size was overrun, and that could lead to all kinds of
+ "interesting things", often in segfaults.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=440
+----------------------------------------------------------------------------
+Version 7.2.7 [v7-stable] 2013-04-17
+- rsyslogd startup information is now properly conveyed back to init
+ when privileges are being dropped
+ Actually, we have moved termination of the parent in front of the
+ priv drop. So it shall work now in all cases. See code comments in
+ commit for more details.
+- If forking, the parent now waits for a maximum of 60 seconds for
+ termination by the child
+- improved debugging support in forked (auto-backgrounding) mode
+ The rsyslog debug log file is now continued to be written across the
+ fork.
+- updated systemd files to match current systemd source
+- bugfix: failover/action suspend did not work correctly
+ This was experienced if the retry action took more than one second
+ to complete. For suspending, a cached timestamp was used, and if the
+ retry took longer, that timestamp was already in the past. As a
+ result, the action never was kept in suspended state, and as such
+ no failover happened. The suspend functionality now does no longer use
+ the cached timestamp (should not have any performance implication, as
+ action suspend occurs very infrequently).
+- bugfix: nested if/prifilt conditions did not work properly
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=415
+- bugfix: script == comparison did not work properly on JSON objects
+ [backport from 7.3 branch]
+- bugfix: imudp scheduling parameters did affect main thread, not imudp
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=409
+- bugfix: imuxsock rate-limiting could not be configured via legacy conf
+ Rate-limiting for the system socket could not be configured via legacy
+ configuration directives. However, the new-style RainerScript config
+ options worked.
+ Thanks to Milan Bartos for the patch.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=390
+- bugfix: using group resolution could lead to endless loop
+ Thanks to Tomas Heinrich for the patch.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=310
+- bugfix: $mmnormalizeuseramsg parameter was specified with wrong type
+ Thank to Renzhong Zhang for alerting us of the problem.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=420
+- bugfix: RainerScript getenv() function caused segfault when var was
+ not found.
+ Thanks to Philippe Muller for the patch.
+- bugfix: several issues in imkmsg
+ see bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=421#c8
+- bugfix: imuxsock was missing SysSock.ParseTrusted module parameter
+ To use that functionality, legacy rsyslog.conf syntax had to be used.
+ Also, the doc was missing information on the "ParseTrusted" set of
+ config directives.
+- bugfix: parameter action.execOnlyWhenPreviousIsSuspended was accidentally
+ of integer-type. For obvious reasons, it needs to be boolean. Note
+ that this change can break existing configurations if they circumvented
+ the problem by using 0/1 values.
+- doc bugfix: rsyslog.conf man page had invalid file format info
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=418
+----------------------------------------------------------------------------
+Version 7.2.6 [v7-stable] 2013-03-05
+- slightly improved config parser error messages when invalid escapes happen
+- bugfix: include files got included in the wrong order
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=411
+ This happens if an $IncludeConfig directive was done on multiple
+ files (e.g. the distro default of $IncludeConfig /etc/rsyslog.d/*.conf).
+ In that case, the order of include file processing is reversed, which
+ could lead to all sorts of problems.
+ Thanks to Nathan Stratton Treadway for his great analysis of the problem,
+ which made bug fixing really easy.
+- bugfix: omelasticsearch failed when authentication data was provided
+ ... at least in most cases it emitted an error message:
+ "snprintf failed when trying to build auth string"
+ Thanks to Joerg Heinemann for alerting us.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=404
+- bugfix: some property-based filter were incorrectly parsed
+ This usually lead to a syntax error on startup and rsyslogd not actually
+ starting up. The problem was the regex, which did not care for double
+ quote characters to follow in the action part - unfortunately something
+ that can frequently happen with v6+ format. An example:
+ :programname, isequal, "as" {action(type="omfile" ...) }
+ Here, the part
+ :programname, isequal, "as" {action(type="omfile"
+ was treated as the property filter, and the rest as action part.
+ Obviously, this did not work out. Unfortunately, such situations usually
+ resulted in very hard to understand error messages.
+----------------------------------------------------------------------------
+Version 7.2.5 [v7-stable] 2013-01-08
+- build system cleanup (thanks to Michael Biebl for this!)
+- bugfix: omelasticsearch did not properly compile on some platforms
+ due to missing libmath. Thanks to Michael Biebl for the fix
+- bugfix: invalid DST handling under Solaris
+ Thanks to Scott Severtson for the patch.
+- bugfix: on termination, actions were incorrectly called
+ The problem was that incomplete fiter evaluation was done *during the
+ shutdown phase*. This affected only the LAST batches being processed. No
+ problem existed during the regular run. Could usually only happen on
+ very busy systems, which were still busy during shutdown.
+- bugfix: very large memory consumption (and probably out of memory) when
+ FromPos was specified in template, but ToPos not.
+ Thanks to Radu Gheorghe for alerting us of this bug.
+- bugfix: timeval2syslogTime cause problems on some platforms
+ due to invalid assumption on structure data types.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=394
+ Thanks to David Hill for the patch [under ASL2.0 as per email conversation
+ 2013-01-03].
+- bugfix: compile errors in im3195
+ Thanks to Martin Körper for the patch
+- bugfix: doGetFileCreateMode() had invalid validity check ;)
+ Thanks to Chandler Latour for the patch.
+- bugfix: mmjsonparse erroneously returned action error when no CEE cookie
+ was present.
+----------------------------------------------------------------------------
+Version 7.2.4 [v7-stable] 2012-12-07
+- enhance: permit RFC3339 timestamp in local log socket messages
+ Thanks to Sebastien Ponce for the patch.
+- imklog: added ParseKernelTimestamp parameter (import from 5.10.2)
+ Thanks to Marius Tomaschewski for the patch.
+- fix missing functionality: ruleset(){} could not specify ruleset queue
+ The "queue.xxx" parameter set was not supported, and legacy ruleset
+ config statements did not work (by intention). The fix introduces the
+ "queue.xxx" parameter set. It has some regression potential, but only
+ for the new functionality. Note that using that interface it is possible
+ to specify duplicate queue file names, which will cause trouble. This
+ will be solved in v7.3, because there is a too-large regression
+ potential for the v7.2 stable branch.
+- imklog: added KeepKernelTimestamp parameter (import from 5.10.2)
+ Thanks to Marius Tomaschewski for the patch.
+- bugfix: imklog mistakenly took kernel timestamp subseconds as nanoseconds
+ ... actually, they are microseconds. So the fractional part of the
+ timestamp was not properly formatted. (import from 5.10.2)
+ Thanks to Marius Tomaschewski for the bug report and the patch idea.
+- bugfix: supportoctetcountedframing parameter did not work in imptcp
+- bugfix: modules not (yet) supporting new conf format were not properly
+ registered. This lead to a "module not found" error message instead of
+ the to-be-expected "module does not support new style" error message.
+ That invalid error message could be quite misleading and actually stop
+ people from addressing the real problem (aka "go nuts" ;))
+- bugfix: template "type" parameter is mandatory (but was not)
+- bugfix: some message properties could be garbled due to race condition
+ This happened only on very high volume systems, if the same message was
+ being processed by two different actions. This was a regression caused
+ by the new config processor, which did no longer properly enable msg
+ locking in multithreaded cases. The bugfix is actually a refactoring of
+ the msg locking code - we no longer do unlocked operations, as the use
+ case for it has mostly gone away. It is potentially possible only at
+ very low-end systems, and there the small additional overhead of doing
+ the locking does not really hurt. Instead, the removal of that
+ capability can actually slightly improve performance in common cases,
+ as the code path is smaller and requires slightly less memory writes.
+ That probably outperforms the extra locking overhead (which in the
+ low-end case always happens in user space, without need for kernel
+ support as we can always directly acquire the lock - there is no
+ contention at all).
+----------------------------------------------------------------------------
+Version 7.2.3 [v7-stable] 2012-10-21
+- regression fix: rsyslogd terminated when wild-card $IncludeConfig did not
+ find actual include files. For example, if this directive is present:
+ $IncludeConfig /etc/rsyslog.d/*.conf
+ and there are no *.conf files in /etc/rsyslog.d (but rsyslog.d exists),
+ rsyslogd will emit an error message and terminate. Previous (and expected)
+ behavior is that an empty file set is no problem. HOWEVER, if the
+ directory itself does not exist, this is flagged as an error and will
+ load to termination (no startup).
+ Unfortunately, this is often the case by default in many distros, so this
+ actually prevents rsyslog startup.
+----------------------------------------------------------------------------
+Version 7.2.2 [v7-stable] 2012-10-16
+- doc improvements
+- enabled to build without libuuid, at loss of uuid functionality
+ this enables smoother builds on older systems that do not support
+ libuuid. Loss of functionality should usually not matter too much as
+ uuid support has only recently been added and is very seldom used.
+- bugfix: omfwd did not properly support "template" parameter
+- bugfix: potential segfault when re_match() function was used
+ Thanks to oxpa for the patch.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=371
+- bugfix: potential abort of imtcp on rsyslogd shutdown
+- bugfix: imzmq3 segfault with PULL subscription
+ Thanks to Martin Nilsson for the patch.
+- bugfix: improper handling of backslash in string-type template()s
+- bugfix: leading quote (") in string-type template() lead to tight loop
+ on startup
+- bugfix: no error msg on invalid field option in legacy/string template
+- bugfix: potential segfault due to invalid param handling in comparisons
+ This could happen in RainerScript comparisons (like contains); in some
+ cases an uninitialized variable was accessed, which could lead to an
+ invalid free and in turn to a segfault.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=372
+ Thanks to Georgi Georgiev for reporting this bug and his great help
+ in solving it.
+- bugfix: no error msg on unreadable $IncludeConfig path
+- bugfix: $IncludeConfig did not correctly process directories
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=376
+ The testbench was also enhanced to check for these cases.
+ Thanks to Georgi Georgiev for the bug report.
+- bugfix: make rsyslog compile on kfreebsd again
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=380
+ Thanks to Guillem Jover for the patch.
+- bugfix: garbled message if field name was used with jsonf property option
+ The length for the field name was invalidly computed, resulting in either
+ truncated field names or including extra random data. If the random data
+ contained NULs, the rest of the message became unreadable.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=374
+- bugfix: potential segfault at startup with property-based filter
+ If the property name was followed by a space before the comma, rsyslogd
+ aborted on startup. Note that no segfault could happen if the initial
+ startup went well (this was a problem with the config parser).
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=381
+- bugfix: imfile discarded some file parts
+ File lines that were incomplete (LF missing) *at the time imfile polled
+ the file* were partially discarded. That part of the line that was read
+ without the LF was discarded, and the rest of the line was submitted in
+ the next polling cycle. This is now changed so that the partial content
+ is saved until the complete line is read. Note that the patch affects
+ only read mode 0.
+ Thanks to Milan Bartos for providing the base idea for the solution.
+----------------------------------------------------------------------------
+Version 7.2.1 [v7-stable] 2012-10-29
+- bugfix: ruleset()-object did only support a single statement
+- added -D rsyslogd option to enable config parser debug mode
+- improved syntax error messages by outputting the error token
+- the rsyslog core now suspends actions after 10 failures in a row
+ This was former the case after 1,000 failures and could cause rsyslog
+ to be spammed/resources misused. See the v6 compatibility doc for more
+ details.
+- ommongodb rate-limits error messages to prevent spamming the syslog
+ closes (for v7.2): http://bugzilla.adiscon.com/show_bug.cgi?id=366
+----------------------------------------------------------------------------
+Version 7.2.0 [v7-stable] 2012-10-22
+This starts a new stable branch based on 7.1.12 plus the following changes:
+- bugfix: imuxsock did not properly honor $LocalHostIPIF
+- omruleset/omdiscard do no longer issue "deprecated" warnings, as 7.1
+ grammar does not permit to use the replacements under all circumstances
+----------------------------------------------------------------------------
+Version 7.1.12 [beta] 2012-10-18
+- minor updates to better support newer systemd developments
+ Thanks to Michael Biebl for the patches.
+- build system cleanup
+ Thanks to Michael Biebl for the patch series.
+- cleanup: removed remains of -c option (compatibility mode)
+ both from code & doc and emitted warning message if still used
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=361
+ Thanks to Michael Biebl for reporting & suggestions
+- bugfix: imklog truncated head of received message
+ This happened only under some circumstances. Thanks to Marius
+ Tomaschewski and Florian Piekert for their help in solving this issue.
+----------------------------------------------------------------------------
+Version 7.1.11 [beta] 2012-10-16
+- bugfix: imuxsock truncated head of received message
+ This happened only under some circumstances. Thanks to Marius
+ Tomaschewski, Florian Piekert and Milan Bartos for their help in
+ solving this issue.
+- bugfix: do not crash if set statement is used with date field
+ Thanks to Miloslav Trmač for the patch.
+- change lumberjack cookie to "@cee:" from "@cee: "
+ CEE originally specified the cookie with SP, whereas other lumberjack
+ tools used it without space. In order to keep interop with lumberjack,
+ we now use the cookie without space as well. I hope this can be changed
+ in CEE as well when it is released at a later time.
+ Thanks to Miloslav Trmač for pointing this out and a similar v7 patch.
+- added deprecated note to omruleset (plus clue to use "call")
+- added deprecated note to discard action (plus clue to use "stop")
+---------------------------------------------------------------------------
+Version 7.1.10 [beta] 2012-10-11
+ - bugfix: m4 directory was not present in release tarball
+ - bugfix: small memory leak with string-type templates
+ - bugfix: small memory leak when template was specified in omfile
+ - bugfix: some config processing warning messages were treated as errors
+ - bugfix: small memory leak when processing action() statements
+ - bugfix: unknown action() parameters were not reported
+---------------------------------------------------------------------------
+Version 7.1.9 [beta] 2012-10-09
+- bugfix: comments inside objects (e.g. action()) were not properly handled
+- bugfix: in (non)equal comparisons the position of arrays influenced result
+ This behavior is OK for "contains"-type of comparisons (which have quite
+ different semantics), but not for == and <>, which shall be commutative.
+ This has been fixed now, so there is no difference any longer if the
+ constant string array is the left or right hand operand. We solved this
+ via the optimizer, as it keeps the actual script execution code small.
+---------------------------------------------------------------------------
+Version 7.1.8 [beta] 2012-10-02
+- bugfix: ruleset(){} directive erroneously changed default ruleset
+ much like the $ruleset legacy conf statement. This potentially lead
+ to statements being assigned to the wrong ruleset.
+- improved module doc
+- added "parser" parameter to ruleset(), so that parser chain can be
+ configured
+- implemented "continue" RainerScript statement
+---------------------------------------------------------------------------
+Version 7.1.7 [devel] 2012-10-01
+- implemented RainerScript "call" statement
+- implemented RainerScript array-based string comparison operations
+- implemented imtcp "permittedPeers" module-global parameter
+- imudp: support for specifying multiple ports via array added
+---------------------------------------------------------------------------
+Version 7.1.6 [devel] 2012-09-28
+- implemented RainerScript input() statement, including support for it
+ in major input plugins
+- implemented RainerScript ruleset() statement
+---------------------------------------------------------------------------
+Version 7.1.5 [devel] 2012-09-25
+- implemented RainerScript prifield() function
+- implemented RainerScript field() function
+- added new module imkmsg to process structured kernel log
+ Thanks to Milan Bartos for contributing this module
+- implemented basic RainerScript optimizer, which will speed up script
+ operations
+- bugfix: invalid free if function re_match() was incorrectly used
+ if the config file parser detected that param 2 was not constant, some
+ data fields were not initialized. The destructor did not care about that.
+ This bug happened only if rsyslog startup was unclean.
+---------------------------------------------------------------------------
+Version 7.1.4 [devel] 2012-09-19
+- implemented ability for CEE-based properties to be stored in disk queues
+- implemented string concatenation in expressions via &-operator
+- implemented json subtree copy in variable assignment
+- implemented full JSON support for variable manipulation
+- introduced "subtree"-type templates
+- bugfix: omfile action did not respect "template" parameter
+ ... and used default template in all cases
+- bugfix: MsgDup() did not copy CEE structure
+ This function was called at various places, most importantly during
+ "last messages repeated n times" processing and omruleset. If CEE(JSON)
+ data was present, it was lost as part of the copy process.
+- bugfix: debug output indicated improper queue type
+---------------------------------------------------------------------------
+Version 7.1.3 [devel] 2012-09-17
+- introduced "set" and "unset" config statements
+- bugfix: missing support for escape sequences in RainerScript
+ only \' was supported. Now the usual set is supported. Note that v5
+ used \x as escape where x was any character (e.g. "\n" meant "n" and NOT
+ LF). This also means there is some incompatibility to v5 for well-know
+ sequences. Better break it now than later.
+- bugfix: invalid property name in property-filter could cause abort
+ if action chaining (& operator) was used
+ http://bugzilla.adiscon.com/show_bug.cgi?id=355
+ Thanks to pilou@gmx.com for the bug report
+---------------------------------------------------------------------------
+Version 7.1.2 [devel] 2012-09-12
+- bugfix: messages were duplicated, sometimes massively
+ regression from new code in 7.1.1 and reason for early release
+- bugfix: remove invalid socket option call from imuxsock
+ Thanks to Cristian Ionescu-Idbohrn and Jonny Törnbom
+- bugfix: abort when invalid property name was configured
+ in property-based filter
+- bugfix: multiple rulesets did no longer work correctly (7.1.1 regression)
+---------------------------------------------------------------------------
+Version 7.1.1 [devel] 2012-09-11
+- MAJOR NEW FEATURE: ruleengine now fully supports nesting
+ including if ... then ... else ... constructs. This is a big change
+ and it obviously has a lot of bug potential.
+- BSD-style (filter) blocks are no longer supported
+ see https://www.rsyslog.com/g/BSD for details and solution
+- imuxsock now stores trusted properties by default in the CEE root
+ This was done in order to keep compatible with other implementations of
+ the lumberjack schema
+ Thanks to Miloslav Trmač for pointing to this.
+- bugfix: string-generating templates caused abort if CEE field could not
+ be found
+---------------------------------------------------------------------------
+Version 7.1.0 [devel] 2012-09-06
+- added support for hierarchical properties (CEE/lumberjack)
+- added pure JSON output plugin parameter passing mode
+- ommongodb now supports templates
+- bugfix: imtcp could abort on exit due to invalid free()
+- imported bugfixes from 6.4.1
+---------------------------------------------------------------------------
+Version 6.6.1 [v6-stable] 2012-10-??
+- bugfix: build problems on some platforms
+- bugfix: misaddressing of $mmnormalizeuserawmsg parameter
+ On many platforms, this has no effect at all. At some, it may cause
+ a segfault. The problem occurs only during config phase, no segfault
+ happens when rsyslog has fully started.
+- fix API "glitch" in some plugins
+ This did not affect users, but could have caused trouble in the future
+ for developers.
+- bugfix: no error msg on invalid field option in legacy/string template
+- bugfix: no error msg on unreadable $IncludeConfig path
+- bugfix: $IncludeConfig did not correctly process directories
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=376
+ The testbench was also enhanced to check for these cases.
+ Thanks to Georgi Georgiev for the bug report.
+- bugfix: spurios error messages from imuxsock about (non-error) EAGAIN
+ Thanks to Marius Tomaschewski for the patch.
+- imklog: added $klogParseKernelTimestamp option
+ When enabled, kernel message [timestamp] is converted for message time.
+ Default is to use receive time as in 5.8.x and before, because the clock
+ used to create the timestamp is not supposed to be as accurate as the
+ monotonic clock (depends on hardware and kernel) resulting in differences
+ between kernel and system messages which occurred at same time.
+ Thanks to Marius Tomaschewski for the patch.
+- imklog: added $klogKeepKernelTimestamp option
+ When enabled, the kernel [timestamp] remains at begin of
+ each message, even it is used for the message time too.
+ Thanks to Marius Tomaschewski for the patch.
+- bugfix: imklog mistakenly took kernel timestamp subseconds as nanoseconds
+ ... actually, they are microseconds. So the fractional part of the
+ timestamp was not properly formatted.
+ Thanks to Marius Tomaschewski for the bug report and the patch idea.
+- bugfix: hostname set in rsyslog.conf was not picked up until HUP
+ which could also mean "never" or "not for a very long time".
+ Thanks to oxpa for providing analysis and a patch
+- bugfix: some message properties could be garbled due to race condition
+ This happened only on very high volume systems, if the same message was
+ being processed by two different actions. This was a regression caused
+ by the new config processor, which did no longer properly enable msg
+ locking in multithreaded cases. The bugfix is actually a refactoring of
+ the msg locking code - we no longer do unlocked operations, as the use
+ case for it has mostly gone away. It is potentially possible only at
+ very low-end systems, and there the small additional overhead of doing
+ the locking does not really hurt. Instead, the removal of that
+ capability can actually slightly improve performance in common cases,
+ as the code path is smaller and requires slightly less memory writes.
+ That probably outperforms the extra locking overhead (which in the
+ low-end case always happens in user space, without need for kernel
+ support as we can always directly acquire the lock - there is no
+ contention at all).
+- bugfix: invalid DST handling under Solaris
+ Thanks to Scott Severtson for the patch.
+---------------------------------------------------------------------------
+Version 6.6.0 [v6-stable] 2012-10-22
+This starts a new stable branch, based on the 6.5.x series, plus:
+- bugfix: imuxsock did not properly honor $LocalHostIPIF
+---------------------------------------------------------------------------
+Version 6.5.1 [beta] 2012-10-11
+- added tool "logctl" to handle lumberjack logs in MongoDB
+- imfile ported to new v6 config interface
+- imfile now supports config parameter for maximum number of submits
+ which is a fine-tuning parameter in regard to input batching
+- added pure JSON output plugin parameter passing mode
+- ommongodb now supports templates
+- bugfix: imtcp could abort on exit due to invalid free()
+- bugfix: remove invalid socket option call from imuxsock
+ Thanks to Cristian Ionescu-Idbohrn and Jonny Törnbom
+- added pure JSON output plugin parameter passing mode
+- ommongodb now supports templates
+- bugfix: imtcp could abort on exit due to invalid free()
+- bugfix: missing support for escape sequences in RainerScript
+ only \' was supported. Now the usual set is supported. Note that v5
+ used \x as escape where x was any character (e.g. "\n" meant "n" and NOT
+ LF). This also means there is some incompatibility to v5 for well-know
+ sequences. Better break it now than later.
+- bugfix: small memory leaks in template() statements
+ these were one-time memory leaks during startup, so they did NOT grow
+ during runtime
+- bugfix: config validation run did not always return correct return state
+- bugfix: config errors did not always cause statement to fail
+ This could lead to startup with invalid parameters.
+---------------------------------------------------------------------------
+Version 6.5.0 [devel] 2012-08-28
+- imrelp now supports non-cancel thread termination
+ (but now requires at least librelp 1.0.1)
+- implemented freeCnf() module interface
+ This was actually not present in older versions, even though some modules
+ already used it. The implementation was now done, and not in 6.3/6.4
+ because the resulting memory leak was ultra-slim and the new interface
+ handling has some potential to seriously break things. Not the kind of
+ thing you want to add in late beta state, if avoidable.
+- added --enable-debugless configure option for very high demanding envs
+ This actually at compile time disables a lot of debug code, resulting
+ in some speedup (but serious loss of debugging capabilities)
+- added new 0mq plugins (via czmq lib)
+ Thanks to David Kelly for contributing these modules
+- bugfix: omhdfs did no longer compile
+- bugfix: SystemLogSocketAnnotate did not work correctly
+ Thanks to Miloslav Trmač for the patch
+- $SystemLogParseTrusted config file option
+ Thanks to Milan Bartos for the patch
+- added template config directive
+- added new uuid message property
+ Thanks to Jérôme Renard for the idea and patches.
+ Note: patches were released under ASL 2.0, see
+ http://bugzilla.adiscon.com/show_bug.cgi?id=353
+---------------------------------------------------------------------------
+Version 6.4.3 [V6-STABLE/NEVER RELEASED] 2012-??-??
+This version was never released as 6.6.0 came quickly enough. Note that
+all these patches here are present in 6.6.0.
+- cleanup: removed remains of -c option (compatibility mode)
+ both from code & doc and emitted warning message if still used
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=361
+ Thanks to Michael Biebl for reporting & suggestions
+- bugfix: imuxsock and imklog truncated head of received message
+ This happened only under some circumstances. Thanks to Marius
+ Tomaschewski, Florian Piekert and Milan Bartos for their help in
+ solving this issue.
+- change lumberjack cookie to "@cee:" from "@cee: "
+ CEE originally specified the cookie with SP, whereas other lumberjack
+ tools used it without space. In order to keep interop with lumberjack,
+ we now use the cookie without space as well. I hope this can be changed
+ in CEE as well when it is released at a later time.
+ Thanks to Miloslav Trmač for pointing this out and a similar v7 patch.
+- bugfix: comments inside objects (e.g. action()) were not properly handled
+- bugfix: sysklogd-emulating standard template was no longer present in v6
+ This was obviously lost during the transition to the new config format.
+ Thanks to Milan Bartos for alerting us and a patch!
+- bugfix: some valid legacy PRI filters were flagged as erroneous
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=358
+ This happened to filters of the style "local0,local1.*", where the
+ multiple facilities were comma-separated.
+- bugfix: imuxsock did not properly honor $LocalHostIPIF
+---------------------------------------------------------------------------
+Version 6.4.2 [V6-STABLE] 2012-09-20
+- bugfix: potential abort, if action queue could not be properly started
+ This most importantly could happen due to configuration errors.
+- bugfix: remove invalid socket option call from imuxsock
+ Thanks to Cristian Ionescu-Idbohrn and Jonny Törnbom
+- bugfix: missing support for escape sequences in RainerScript
+ only \' was supported. Now the usual set is supported. Note that v5
+ used \x as escape where x was any character (e.g. "\n" meant "n" and NOT
+ LF). This also means there is some incompatibility to v5 for well-know
+ sequences. Better break it now than later.
+- bugfix: config validation run did not always return correct return state
+---------------------------------------------------------------------------
+Version 6.4.1 [V6-STABLE] 2012-09-06
+- bugfix: multiple main queues with same queue file name were not detected
+ This lead to queue file corruption. While the root cause is a config
+ error, it is a bug that this important and hard to find config error
+ was not detected by rsyslog.
+- bugfix: "jsonf" property replacer option did generate invalid JSON
+ in JSON, we have "fieldname":"value", but the option emitted
+ "fieldname"="value". Interestingly, this was accepted by a couple
+ of sinks, most importantly elasticsearch. Now the correct format is
+ emitted, which causes a remote chance that some things that relied on
+ the wrong format will break.
+ Thanks to Miloslav Trmač for the patch
+- change $!all-json did emit an empty (thus non-JSON) string if no libee
+ data was present. It now emits {} and thus valid JSON. There is a
+ small risk that this may break some things that relied on the previous
+ inconsistency.
+ Thanks to Miloslav Trmač for the patch
+- bugfix: omusrmsg incorrect return state & config warning handling
+ During config file processing, Omusrmsg often incorrectly returned a
+ warning status, even when no warning was present (caused by
+ uninitialized variable). Also, the core handled warning messages
+ incorrectly, and treated them as errors. As a result, omusrmsg
+ (most often) could not properly be loaded. Note that this only
+ occurs with legacy config action syntax. This was a regression
+ caused by an incorrect merge in to the 6.3.x codebase.
+ Thanks to Stefano Mason for alerting us of this bug.
+- bugfix: Fixed TCP CheckConnection handling in omfwd.c. Interface needed
+ to be changed in lower stream classes. Syslog TCP Sending is now resumed
+ properly. Unfixed, that lead to non-detection of downstate of remote
+ hosts.
+---------------------------------------------------------------------------
+Version 6.4.0 [V6-STABLE] 2012-08-20
+- THIS IS THE FIRST VERSION OF THE 6.4.x STABLE BRANCH
+ It includes all enhancements made in 6.3.x plus what is written in the
+ ChangeLog below.
+- omelasticsearch: support for parameters parent & dynparent added
+- bugfix: imtcp aborted when more than 2 connections were used.
+ Incremented pthread stack size to 4MB for imtcp, imptcp and imttcp
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=342
+- bugfix: imptcp aborted when $InputPTCPServerBindRuleset was used
+- bugfix: problem with cutting first 16 characters from message with
+ bAnnotate
+ Thanks to Milan Bartos for the patch.
+---------------------------------------------------------------------------
+Version 6.3.12 [BETA] 2012-07-02
+- support for elasticsearch via omelasticsearch added
+ Note that this module has been tested quite well by a number of folks,
+ and this is why we merge in new functionality in a late beta stage.
+ Even if problems would exist, only users of omelasticsearch would
+ experience them, making it a pretty safe addition.
+- bugfix: $ActionName was not properly honored
+ Thanks to Abby Edwards for alerting us
+---------------------------------------------------------------------------
+Version 6.3.11 [BETA] 2012-06-18
+- bugfix: expression-based filters with AND/OR could segfault
+ due to a problem with boolean shortcut operations. From the user's
+ perspective, the segfault is almost non-deterministic (it occurs when
+ a shortcut is used).
+ Thanks to Lars Peterson for providing the initial bug report and his
+ support in solving it.
+- bugfix: "last message repeated n times" message was missing hostname
+ Thanks to Zdenek Salvet for finding this bug and to Bodik for reporting
+---------------------------------------------------------------------------
+Version 6.3.10 [BETA] 2012-06-04
+- bugfix: delayable source could block action queue, even if there was
+ a disk queue associated with it. The root cause of this problem was
+ that it makes no sense to delay messages once they arrive in the
+ action queue - the "input" that is being held in that case is the main
+ queue worker, what makes no sense.
+ Thanks to Marcin for alerting us on this problem and providing
+ instructions to reproduce it.
+- bugfix: invalid free in imptcp could lead to abort during startup
+- bugfix: if debug message could end up in log file when forking
+ if rsyslog was set to auto-background (thus fork, the default) and debug
+ mode to stdout was enabled, debug messages ended up in the first log file
+ opened. Currently, stdout logging is completely disabled in forking mode
+ (but writing to the debug log file is still possible). This is a change
+ in behavior, which is under review. If it causes problems to you,
+ please let us know.
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: --enable-smcustbindcdr configure directive did not work
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=330
+ Thanks to Ultrabug for the patch.
+- bugfix: made rsyslog compile when libestr ist not installed in /usr
+ Thanks to Miloslav Trmač for providing patches and suggestions
+---------------------------------------------------------------------------
+Version 6.3.9 [BETA] 2012-05-22
+- bugfix: imtcp could cause hang during reception
+ this also applied to other users of core file tcpsrv.c, but imtcp was
+ by far the most prominent and widely-used, the rest rather exotic
+ (like imdiag)
+- added capability to specify substrings for field extraction mode
+- added the "jsonf" property replacer option (and fieldname)
+- bugfix: omudpspoof did not work correctly if no spoof hostname was
+ configured
+- bugfix: property replacer option "json" could lead to content loss
+ message was truncated if escaping was necessary
+- bugfix: assigned ruleset was lost when using disk queues
+ This looked quite hard to diagnose for disk-assisted queues, as the
+ pure memory part worked well, but ruleset info was lost for messages
+ stored inside the disk queue.
+- bugfix/imuxsock: solving abort if hostname was not set; configured
+ hostname was not used (both merge regressions)
+ -bugfix/omfile: template action parameter was not accepted
+ (and template name set to "??" if the parameter was used)
+ Thanks to Brian Knox for alerting us on this bug.
+- bugfix: ommysql did not properly init/exit the mysql runtime library
+ this could lead to segfaults. Triggering condition: multiple action
+ instances using ommysql. Thanks to Tomas Heinrich for reporting this
+ problem and providing an initial patch (which my solution is based on,
+ I need to add more code to clean the mess up).
+- bugfix: rsyslog did not terminate when delayable inputs were blocked
+ due to unavailable sources. Fixes:
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ Thanks to Marcin M for bringing up this problem and Andre Lorbach
+ for helping to reproduce and fix it.
+- added capability to specify substrings for field extraction mode
+- bugfix: disk queue was not persisted on shutdown, regression of fix to
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ The new code also handles the case of shutdown of blocking light and
+ full delayable sources somewhat smarter and permits, assuming sufficient
+ timeouts, to persist message up to the max queue capacity. Also some nits
+ in debug instrumentation have been fixed.
+---------------------------------------------------------------------------
+Version 6.3.8 [DEVEL] 2012-04-16
+- added $PStatJSON directive to permit stats records in JSON format
+- added "date-unixtimestamp" property replacer option to format as a
+ unix timestamp (seconds since epoch)
+- added "json" property replacer option to support JSON encoding on a
+ per-property basis
+- added omhiredis (contributed module)
+- added mmjsonparse to support recognizing and parsing JSON enhanced syslog
+ messages
+- upgraded more plugins to support the new v6 config format:
+ - ommysql
+ - omlibdbi
+ - omsnmp
+- added configuration directives to customize queue light delay marks
+ $MainMsgQueueLightDelayMark, $ActionQueueLightDelayMark; both
+ specify number of messages starting at which a delay happens.
+- added message property parsesuccess to indicate if the last run
+ higher-level parser could successfully parse the message or not
+ (see property replacer html doc for details)
+- bugfix: abort during startup when rsyslog.conf v6+ format was used in
+ a certain way
+- bugfix: property $!all-json made rsyslog abort if no normalized data
+ was available
+- bugfix: memory leak in array passing output module mode
+- added configuration directives to customize queue light delay marks
+- permit size modifiers (k,m,g,...) in integer config parameters
+ Thanks to Jo Rhett for the suggestion.
+- bugfix: hostname was not requeried on HUP
+ Thanks to Per Jessen for reporting this bug and Marius Tomaschewski for
+ his help in testing the fix.
+- bugfix: imklog invalidly computed facility and severity
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=313
+- added configuration directive to disable octet-counted framing
+ for imtcp, directive is $InputTCPServerSupportOctetCountedFraming
+ for imptcp, directive is $InputPTCPServerSupportOctetCountedFraming
+- added capability to use a local interface IP address as fromhost-ip for
+ locally originating messages. New directive $LocalHostIPIF
+---------------------------------------------------------------------------
+Version 6.3.7 [DEVEL] 2012-02-02
+- imported refactored v5.9.6 imklog linux driver, now combined with BSD
+ driver
+- removed imtemplate/omtemplate template modules, as this was waste of time
+ The actual input/output modules are better copy templates. Instead, the
+ now-removed modules cost time for maintenance AND often caused confusion
+ on what their role was.
+- added a couple of new stats objects
+- improved support for new v6 config system. The build-in output modules
+ now all support the new config language
+- bugfix: facility local<x> was not correctly interpreted in legacy filters
+ Was only accepted if it was the first PRI in a multi-filter PRI.
+ Thanks to forum user Mark for bringing this to our attention.
+- bugfix: potential abort after reading invalid X.509 certificate
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=290
+ Thanks to Tomas Heinrich for the patch
+- bugfix: legacy parsing of some filters did not work correctly
+- bugfix: rsyslog aborted during startup if there is an error in loading
+ an action and legacy configuration mode is used
+- bugfix: bsd klog driver did no longer compile
+- relicensed larger parts of the code under Apache (ASL) 2.0
+---------------------------------------------------------------------------
+Version 6.3.6 [DEVEL] 2011-09-19
+- added $InputRELPServerBindRuleset directive to specify rulesets for RELP
+- bugfix: config parser did not support properties with dashes in them
+ inside property-based filters. Thanks to Gerrit Seré for reporting this.
+---------------------------------------------------------------------------
+Version 6.3.5 [DEVEL] (rgerhards/al), 2011-09-01
+- bugfix/security: off-by-two bug in legacy syslog parser, CVE-2011-3200
+- bugfix: mark message processing did not work correctly
+- imudp&imtcp now report error if no listener at all was defined
+ Thanks to Marcin for suggesting this error message.
+- bugfix: potential misaddressing in property replacer
+---------------------------------------------------------------------------
+Version 6.3.4 [DEVEL] (rgerhards), 2011-08-02
+- added support for action() config object
+ * in rsyslog core engine
+ * in omfile
+ * in omusrmsg
+- bugfix: omusrmsg format usr1,usr2 was no longer supported
+- bugfix: misaddressing in config handler
+ In theory, can cause segfault, in practice this is extremely unlikely
+ Thanks to Marcin for alerting me.
+---------------------------------------------------------------------------
+Version 6.3.3 [DEVEL] (rgerhards), 2011-07-13
+- rsyslog.conf format: now parsed by RainerScript parser
+ this provides the necessary base for future enhancements as well as some
+ minor immediate ones. For details see:
+ http://blog.gerhards.net/2011/07/rsyslog-633-config-format-improvements.html
+- performance of script-based filters notably increased
+- removed compatibility mode as we expect people have adjusted their
+ confs by now
+- added support for the ":omfile:" syntax for actions
+---------------------------------------------------------------------------
+Version 6.3.2 [DEVEL] (rgerhards), 2011-07-06
+- added support for the ":omusrmsg:" syntax in configuring user messages
+- systemd support: set stdout/stderr to null - thx to Lennart for the patch
+- added support for obtaining timestamp for kernel message from message
+ If the kernel time-stamps messages, time is now take from that
+ timestamp instead of the system time when the message was read. This
+ provides much better accuracy. Thanks to Lennart Poettering for
+ suggesting this feature and his help during implementation.
+- added support for obtaining timestamp from system for imuxsock
+ This permits to read the time a message was submitted to the system
+ log socket. Most importantly, this is provided in microsecond resolution.
+ So we are able to obtain high precision timestampis even for messages
+ that were - as is usual - not formatted with them. This also simplifies
+ things in regard to local time calculation in chroot environments.
+ Many thanks to Lennart Poettering for suggesting this feature,
+ providing some guidance on implementing it and coordinating getting the
+ necessary support into the Linux kernel.
+- bugfix: timestamp was incorrectly calculated for timezones with minute
+ offset
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=271
+- bugfix: memory leak in imtcp & subsystems under some circumstances
+ This leak is tied to error conditions which lead to incorrect cleanup
+ of some data structures.
+---------------------------------------------------------------------------
+Version 6.3.1 [DEVEL] (rgerhards), 2011-06-07
+- added a first implementation of a DNS name cache
+ this still has a couple of weaknesses, like no expiration of entries,
+ suboptimal algorithms -- but it should perform much better than
+ what we had previously. Implementation will be improved based on
+ feedback during the next couple of releases
+---------------------------------------------------------------------------
+Version 6.3.0 [DEVEL] (rgerhards), 2011-06-01
+- introduced new config system
+ http://blog.gerhards.net/2011/06/new-rsyslog-config-system-materializes.html
+---------------------------------------------------------------------------
+Version 6.2.2 [v6-stable], 2012-06-13
+- build system improvements and spec file templates
+ Thanks to Abby Edwards for providing these enhancements
+- bugfix: disk queue was not persisted on shutdown, regression of fix to
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ The new code also handles the case of shutdown of blocking light and
+ full delayable sources somewhat smarter and permits, assuming sufficient
+ timeouts, to persist message up to the max queue capacity. Also some nits
+ in debug instrumentation have been fixed.
+- bugfix: --enable-smcustbindcdr configure directive did not work
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=330
+ Thanks to Ultrabug for the patch.
+- add small delay (50ms) after sending shutdown message
+ There seem to be cases where the shutdown message is otherwise not
+ processed, not even on an idle system. Thanks to Marcin for
+ bringing this problem up.
+- support for resolving huge groups
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=310
+ Thanks to Alec Warner for the patch
+- bugfix: potential hang due to mutex deadlock
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=316
+ Thanks to Andreas Piesk for reporting&analyzing this bug as well as
+ providing patches and other help in resolving it.
+- bugfix: property PROCID empty instead of proper nilvalue if not present
+ If it is not present, it must have the nilvalue "-" as of RFC5424
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=332
+ Thanks to John N for reporting this issue.
+- bugfix: did not compile under solaris due to $uptime property code
+ For the time being, $uptime is not supported on Solaris
+- bugfix: "last message repeated n times" message was missing hostname
+ Thanks to Zdenek Salvet for finding this bug and to Bodik for reporting
+---------------------------------------------------------------------------
+Version 6.2.1 [v6-stable], 2012-05-10
+- change plugin config interface to be compatible with pre-v6.2 system
+ The functionality was already removed (because it is superseded by the
+ v6.3+ config language), but code was still present. I have now removed
+ those parts that affect interface. Full removal will happen in v6.3, in
+ order to limit potential regressions. However, it was considered useful
+ enough to do the interface change in v6-stable; this also eases merging
+ branches!
+- re-licensed larger parts of the codebase under the Apache license 2.0
+- bugfix: omprog made rsyslog abort on startup if not binary to
+ execute was configured
+- bugfix: imklog invalidly computed facility and severity
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=313
+- bugfix: stopped DA queue was never processed after a restart due to a
+ regression from statistics module
+- bugfix: memory leak in array passing output module mode
+- bugfix: ommysql did not properly init/exit the mysql runtime library
+ this could lead to segfaults. Triggering condition: multiple action
+ instances using ommysql. Thanks to Tomas Heinrich for reporting this
+ problem and providing an initial patch (which my solution is based on,
+ I need to add more code to clean the mess up).
+- bugfix: rsyslog did not terminate when delayable inputs were blocked
+ due to unavailable sources. Fixes:
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ Thanks to Marcin M for bringing up this problem and Andre Lorbach
+ for helping to reproduce and fix it.
+- bugfix/tcpflood: sending small test files did not work correctly
+---------------------------------------------------------------------------
+Version 6.2.0 [v6-stable], 2012-01-09
+- bugfix (kind of): removed numerical part from pri-text
+ see v6 compatibility document for reasons
+- bugfix: race condition when extracting program name, APPNAME, structured
+ data and PROCID (RFC5424 fields) could lead to invalid characters e.g.
+ in dynamic file names or during forwarding (general malfunction of these
+ fields in templates, mostly under heavy load)
+- bugfix: imuxsock did no longer ignore message-provided timestamp, if
+ so configured (the *default*). Lead to no longer sub-second timestamps.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=281
+- bugfix: omfile returns fatal error code for things that go really wrong
+ previously, RS_RET_RESUME was returned, which lead to a loop inside the
+ rule engine as omfile could not really recover.
+- bugfix: potential abort after reading invalid X.509 certificate
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=290
+ Thanks to Tomas Heinrich for the patch
+- enhanced module loader to not rely on PATH_MAX
+- imuxsock: added capability to "annotate" messages with "trusted
+ information", which contains some properties obtained from the system
+ and as such sure to not be faked. This is inspired by the similar idea
+ introduced in systemd.
+---------------------------------------------------------------------------
+Version 6.1.12 [BETA], 2011-09-01
+- bugfix/security: off-by-two bug in legacy syslog parser, CVE-2011-3200
+- bugfix: mark message processing did not work correctly
+- bugfix: potential misaddressing in property replacer
+- bugfix: memcpy overflow can occur in allowed sender checking
+ if a name is resolved to IPv4-mapped-on-IPv6 address
+ Found by Ismail Dönmez at suse
+- bugfix: The NUL-Byte for the syslogtag was not copied in MsgDup (msg.c)
+- bugfix: fixed incorrect state handling for Discard Action (transactions)
+ Note: This caused all messages in a batch to be set to COMMITTED,
+ even if they were discarded.
+---------------------------------------------------------------------------
+Version 6.1.11 [BETA] (rgerhards), 2011-07-11
+- systemd support: set stdout/stderr to null - thx to Lennart for the patch
+- added support for the ":omusrmsg:" syntax in configuring user messages
+- added support for the ":omfile:" syntax in configuring user messages
+---------------------------------------------------------------------------
+Version 6.1.10 [BETA] (rgerhards), 2011-06-22
+- bugfix: problems in failover action handling
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=270
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=254
+- bugfix: mutex was invalidly left unlocked during action processing
+ At least one case where this can occur is during thread shutdown, which
+ may be initiated by lower activity. In most cases, this is quite
+ unlikely to happen. However, if it does, data structures may be
+ corrupted which could lead to fatal failure and segfault. I detected
+ this via a testbench test, not a user report. But I assume that some
+ users may have had unreproducable aborts that were cause by this bug.
+---------------------------------------------------------------------------
+Version 6.1.9 [BETA] (rgerhards), 2011-06-14
+- bugfix: problems in failover action handling
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=270
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=254
+- bugfix: mutex was invalidly left unlocked during action processing
+ At least one case where this can occur is during thread shutdown, which
+ may be initiated by lower activity. In most cases, this is quite
+ unlikely to happen. However, if it does, data structures may be
+ corrupted which could lead to fatal failure and segfault. I detected
+ this via a testbench test, not a user report. But I assume that some
+ users may have had unreproducable aborts that were cause by this bug.
+- bugfix/improvement:$WorkDirectory now gracefully handles trailing slashes
+- bugfix: memory leak in imtcp & subsystems under some circumstances
+ This leak is tied to error conditions which lead to incorrect cleanup
+ of some data structures. [backport from v6.3]
+- bugfix: $ActionFileDefaultTemplate did not work
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=262
+---------------------------------------------------------------------------
+Version 6.1.8 [BETA] (rgerhards), 2011-05-20
+- official new beta version (note that in a sense 6.1.7 was already beta,
+ so we may release the first stable v6 earlier than usual)
+- new module mmsnmptrapd, a sample message modification module
+- import of minor bug fixes from v4 & v5
+---------------------------------------------------------------------------
+Version 6.1.7 [DEVEL] (rgerhards), 2011-04-15
+- added log classification capabilities (via mmnormalize & tags)
+- speeded up tcp forwarding by reducing number of API calls
+ this especially speeds up TLS processing
+- somewhat improved documentation index
+- bugfix: enhanced imudp config processing code disabled due to wrong
+ merge (affected UDP realtime capabilities)
+- bugfix (kind of): memory leak with tcp reception epoll handler
+ This was an extremely unlikely leak and, if it happened, quite small.
+ Still it is better to handle this border case.
+- bugfix: IPv6-address could not be specified in omrelp
+ this was due to improper parsing of ":"
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=250
+- bugfix: do not open files with full privileges, if privs will be dropped
+ This make the privilege drop code more bulletproof, but breaks Ubuntu's
+ work-around for log files created by external programs with the wrong
+ user and/or group. Note that it was long said that this "functionality"
+ would break once we go for serious privilege drop code, so hopefully
+ nobody still depends on it (and, if so, they lost...).
+- bugfix: pipes not opened in full priv mode when privs are to be dropped
+---------------------------------------------------------------------------
+Version 6.1.6 [DEVEL] (rgerhards), 2011-03-14
+- enhanced omhdfs to support batching mode. This permits to increase
+ performance, as we now call the HDFS API with much larger message
+ sizes and far more infrequently
+- improved testbench
+ among others, life tests for ommysql (against a test database) have
+ been added, valgrind-based testing enhanced, ...
+- bugfix: minor memory leak in omlibdbi (< 1k per instance and run)
+- bugfix: (regression) omhdfs did no longer compile
+- bugfix: omlibdbi did not use password from rsyslog.con
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=203
+- systemd support somewhat improved (can now take over existing log sockt)
+- bugfix: discard action did not work under some circumstances
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=217
+- bugfix: file descriptor leak in gnutls netstream driver
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=222
+- fixed compile problem in imtemplate
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=235
+---------------------------------------------------------------------------
+Version 6.1.5 [DEVEL] (rgerhards), 2011-03-04
+- improved testbench
+- enhanced imtcp to use a pool of worker threads to process incoming
+ messages. This enables higher processing rates, especially in the TLS
+ case (where more CPU is needed for the crypto functions)
+- added support for TLS (in anon mode) to tcpflood
+- improved TLS error reporting
+- improved TLS startup (Diffie-Hellman bits do not need to be generated,
+ as we do not support full anon key exchange -- we always need certs)
+- bugfix: fixed a memory leak and potential abort condition
+ this could happen if multiple rulesets were used and some output batches
+ contained messages belonging to more than one ruleset.
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=226
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=218
+- bugfix: memory leak when $RepeatedMsgReduction on was used
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=225
+- bugfix: potential abort condition when $RepeatedMsgReduction set to on
+ as well as potentially in a number of other places where MsgDup() was
+ used. This only happened when the imudp input module was used and it
+ depended on name resolution not yet had taken place. In other words,
+ this was a strange problem that could lead to hard to diagnose
+ instability. So if you experience instability, chances are good that
+ this fix will help.
+---------------------------------------------------------------------------
+Version 6.1.4 [DEVEL] (rgerhards), 2011-02-18
+- bugfix/omhdfs: directive $OMHDFSFileName rendered unusable
+ due to a search and replace-induced bug ;)
+- bugfix: minor race condition in action.c - considered cosmetic
+ This is considered cosmetic as multiple threads tried to write exactly
+ the same value into the same memory location without sync. The method
+ has been changed so this can no longer happen.
+- added pmsnare parser module (written by David Lang)
+- enhanced imfile to support non-cancel input termination
+- improved systemd socket activation thanks to Marius Tomaschewski
+- improved error reporting for $WorkDirectory
+ non-existence and other detectable problems are now reported,
+ and the work directory is NOT set in this case
+- bugfix: pmsnare caused abort under some conditions
+- bugfix: abort if imfile reads file line of more than 64KiB
+ Thanks to Peter Eisentraut for reporting and analyzing this problem.
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=221
+- bugfix: queue engine did not properly slow down inputs in FULL_DELAY mode
+ when in disk-assisted mode. This especially affected imfile, which
+ created unnecessarily queue files if a large set of input file data was
+ to process.
+- bugfix: very long running actions could prevent shutdown under some
+ circumstances. This has now been solved, at least for common
+ situations.
+- bugfix: fixed compile problem due to empty structs
+ this occurred only on some platforms/compilers. thanks to Dražen Kačar
+ for the fix
+---------------------------------------------------------------------------
+Version 6.1.3 [DEVEL] (rgerhards), 2011-02-01
+- experimental support for mongodb added
+- added $IMUDPSchedulingPolicy and $IMUDPSchedulingPriority config settings
+- added $LocalHostName config directive
+- improved tcpsrv performance by enabling multiple-entry epoll
+ so far, we always pulled a single event from the epoll interface.
+ Now 128, what should result in performance improvement (less API
+ calls) on busy systems. Most importantly affects imtcp.
+- imptcp now supports non-cancel termination mode, a plus in stability
+- imptcp speedup: multiple worker threads can now be used to read data
+- new directive $InputIMPTcpHelperThreads added
+- bugfix: fixed build problems on some platforms
+ namely those that have 32bit atomic operations but not 64 bit ones
+- bugfix: local hostname was pulled too-early, so that some config
+ directives (namely FQDN settings) did not have any effect
+- enhanced tcpflood to support multiple sender threads
+ this is required for some high-throughput scenarios (and necessary to
+ run some performance tests, because otherwise the sender is too slow).
+- added some new custom parsers (snare, aix, some Cisco "specialities")
+ thanks to David Lang
+---------------------------------------------------------------------------
+Version 6.1.2 [DEVEL] (rgerhards), 2010-12-16
+- added experimental support for log normalization (via liblognorm)
+ support for normalizing log messages has been added in the form of
+ mmnormalize. The core engine (property replacer, filter engine) has
+ been enhanced to support properties from normalized events.
+ Note: this is EXPERIMENTAL code. It is currently know that
+ there are issues if the functionality is used with
+ - disk-based queues
+ - asynchronous action queues
+ You can not use the new functionality together with these features.
+ This limitation will be removed in later releases. However, we
+ preferred to release early, so that one can experiment with the new
+ feature set and accepted the price that this means the full set of
+ functionality is not yet available. If not used together with
+ these features, log normalizing should be pretty stable.
+- enhanced testing tool tcpflood
+ now supports sending via UDP and the capability to run multiple
+ iterations and generate statistics data records
+- bugfix: potential abort when output modules with different parameter
+ passing modes were used in configured output modules
+---------------------------------------------------------------------------
+Version 6.1.1 [DEVEL] (rgerhards), 2010-11-30
+- bugfix(important): problem in TLS handling could cause rsyslog to loop
+ in a tight loop, effectively disabling functionality and bearing the
+ risk of unresponsiveness of the whole system.
+ Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
+- support for omhdfs officially added (import from 5.7.1)
+- merged imuxsock improvements from 5.7.1 (see there)
+- support for systemd officially added (import from 5.7.0)
+- bugfix: a couple of problems that imfile had on some platforms, namely
+ Ubuntu (not their fault, but occurred there)
+- bugfix: imfile utilizes 32 bit to track offset. Most importantly,
+ this problem can not experienced on Fedora 64 bit OS (which has
+ 64 bit long's!)
+- a number of other bugfixes from older versions imported
+---------------------------------------------------------------------------
+Version 6.1.0 [DEVEL] (rgerhards), 2010-08-12
+
+*********************************** NOTE **********************************
+The v6 versions of rsyslog feature a greatly redesigned config system
+which, among others, supports scoping. However, the initial version does
+not contain the whole new system. Rather it will evolve. So it is
+expected that interfaces, even new ones, break during the initial
+6.x.y releases.
+*********************************** NOTE **********************************
+
+- added $Begin, $End and $ScriptScoping config scope statements
+ (at this time for actions only).
+- added imptcp, a simplified, Linux-specific and potentially fast
+ syslog plain tcp input plugin (NOT supporting TLS!)
+ [ported from v4]
+---------------------------------------------------------------------------
+Version 5.10.2 [V5-STABLE], 201?-??-??
+- bugfix: queue file size was not correctly processed
+ this could lead to using one queue file per message for sizes >2GiB
+ Thanks to Tomas Heinrich for the patch.
+- updated systemd files to match current systemd source
+- bugfix: spurios error messages from imuxsock about (non-error) EAGAIN
+ Thanks to Marius Tomaschewski for the patch.
+- imklog: added $klogParseKernelTimestamp option
+ When enabled, kernel message [timestamp] is converted for message time.
+ Default is to use receive time as in 5.8.x and before, because the clock
+ used to create the timestamp is not supposed to be as accurate as the
+ monotonic clock (depends on hardware and kernel) resulting in differences
+ between kernel and system messages which occurred at same time.
+ Thanks to Marius Tomaschewski for the patch.
+- imklog: added $klogKeepKernelTimestamp option
+ When enabled, the kernel [timestamp] remains at begin of
+ each message, even it is used for the message time too.
+ Thanks to Marius Tomaschewski for the patch.
+- bugfix: imklog mistakenly took kernel timestamp subseconds as nanoseconds
+ ... actually, they are microseconds. So the fractional part of the
+ timestamp was not properly formatted.
+ Thanks to Marius Tomaschewski for the bug report and the patch idea.
+- imklog: added $klogKeepKernelTimestamp option
+ When enabled, the kernel [timestamp] remains at begin of
+ each message, even it is used for the message time too.
+ Thanks to Marius Tomaschewski for the patch.
+- bugfix: imklog mistakenly took kernel timestamp subseconds as nanoseconds
+ ... actually, they are microseconds. So the fractional part of the
+ timestamp was not properly formatted.
+ Thanks to Marius Tomaschewski for the bug report and the patch idea.
+- bugfix: invalid DST handling under Solaris
+ Thanks to Scott Severtson for the patch.
+- bugfix: invalid decrement in pm5424 could lead to log truncation
+ Thanks to Tomas Heinrich for the patch.
+- bugfix[kind of]: omudpspoof discarded messages >1472 bytes (MTU size)
+ it now truncates these message, but ensures they are sent. Note that
+ 7.3.5+ will switch to fragmented UDP messages instead (up to 64K)
+---------------------------------------------------------------------------
+Version 5.10.1 [V5-STABLE], 2012-10-17
+- bugfix: imuxsock and imklog truncated head of received message
+ This happened only under some circumstances. Thanks to Marius
+ Tomaschewski, Florian Piekert and Milan Bartos for their help in
+ solving this issue.
+- enable DNS resolution in imrelp
+ Thanks to Apollon Oikonomopoulos for the patch
+- bugfix: invalid property name in property-filter could cause abort
+ if action chaining (& operator) was used
+ http://bugzilla.adiscon.com/show_bug.cgi?id=355
+ Thanks to pilou@gmx.com for the bug report
+- bugfix: remove invalid socket option call from imuxsock
+ Thanks to Cristian Ionescu-Idbohrn and Jonny Törnbom
+- bugfix: fixed wrong bufferlength for snprintf in tcpflood.c when using
+ the -f (dynafiles) option.
+- fixed issues in build system (namely related to cust1 dummy plugin)
+---------------------------------------------------------------------------
+Version 5.10.0 [V5-STABLE], 2012-08-23
+
+NOTE: this is the new rsyslog v5-stable, incorporating all changes from the
+ 5.9.x series. In addition to that, it contains the fixes and
+ enhancements listed below in this entry.
+
+- bugfix: delayable source could block action queue, even if there was
+ a disk queue associated with it. The root cause of this problem was
+ that it makes no sense to delay messages once they arrive in the
+ action queue - the "input" that is being held in that case is the main
+ queue worker, what makes no sense.
+ Thanks to Marcin for alerting us on this problem and providing
+ instructions to reproduce it.
+- bugfix: disk queue was not persisted on shutdown, regression of fix to
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ The new code also handles the case of shutdown of blocking light and
+ full delayable sources somewhat smarter and permits, assuming sufficient
+ timeouts, to persist message up to the max queue capacity. Also some nits
+ in debug instrumentation have been fixed.
+- add small delay (50ms) after sending shutdown message
+ There seem to be cases where the shutdown message is otherwise not
+ processed, not even on an idle system. Thanks to Marcin for
+ bringing this problem up.
+- support for resolving huge groups
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=310
+ Thanks to Alec Warner for the patch
+- bugfix: potential hang due to mutex deadlock
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=316
+ Thanks to Andreas Piesk for reporting&analyzing this bug as well as
+ providing patches and other help in resolving it.
+- bugfix: property PROCID empty instead of proper nilvalue if not present
+ If it is not present, it must have the nilvalue "-" as of RFC5424
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=332
+ Thanks to John N for reporting this issue.
+- bugfix: "last message repeated n times" message was missing hostname
+ Thanks to Zdenek Salvet for finding this bug and to Bodik for reporting
+- bugfix: multiple main queues with same queue file name was not detected
+ This lead to queue file corruption. While the root cause is a config
+ error, it is a bug that this important and hard to find config error
+ was not detected by rsyslog.
+---------------------------------------------------------------------------
+Version 5.9.7 [V5-BETA], 2012-05-10
+- added capability to specify substrings for field extraction mode
+- bugfix: ommysql did not properly init/exit the mysql runtime library
+ this could lead to segfaults. Triggering condition: multiple action
+ instances using ommysql. Thanks to Tomas Heinrich for reporting this
+ problem and providing an initial patch (which my solution is based on,
+ I need to add more code to clean the mess up).
+- bugfix: rsyslog did not terminate when delayable inputs were blocked
+ due to unavailable sources. Fixes:
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ Thanks to Marcin M for bringing up this problem and Andre Lorbach
+ for helping to reproduce and fix it.
+- bugfix/tcpflood: sending small test files did not work correctly
+---------------------------------------------------------------------------
+Version 5.9.6 [V5-BETA], 2012-04-12
+- added configuration directives to customize queue light delay marks
+- permit size modifiers (k,m,g,...) in integer config parameters
+ Thanks to Jo Rhett for the suggestion.
+- bugfix: hostname was not requeried on HUP
+ Thanks to Per Jessen for reporting this bug and Marius Tomaschewski for
+ his help in testing the fix.
+- bugfix: imklog invalidly computed facility and severity
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=313
+- bugfix: imptcp input name could not be set
+ config directive was accepted, but had no effect
+- added configuration directive to disable octet-counted framing
+ for imtcp, directive is $InputTCPServerSupportOctetCountedFraming
+ for imptcp, directive is $InputPTCPServerSupportOctetCountedFraming
+- added capability to use a local interface IP address as fromhost-ip for
+ locally originating messages. New directive $LocalHostIPIF
+- added configuration directives to customize queue light delay marks
+ $MainMsgQueueLightDelayMark, $ActionQueueLightDelayMark; both
+ specify number of messages starting at which a delay happens.
+---------------------------------------------------------------------------
+Version 5.9.5 [V5-DEVEL], 2012-01-27
+- improved impstats subsystem, added many new counters
+- enhanced module loader to not rely on PATH_MAX
+- refactored imklog linux driver, now combined with BSD driver
+ The Linux driver no longer supports outdated kernel symbol resolution,
+ which was disabled by default for very long. Also overall cleanup,
+ resulting in much smaller code. Linux and BSD are now covered by a
+ single small driver.
+- $IMUXSockRateLimitInterval DEFAULT CHANGED, was 5, now 0
+ The new default turns off rate limiting. This was chosen as people
+ experienced problems with rate-limiting activated by default. Now it
+ needs an explicit opt-in by setting this parameter.
+ Thanks to Chris Gaffney for suggesting to make it opt-in; thanks to
+ many unnamed others who already had complained at the time Chris made
+ the suggestion ;-)
+---------------------------------------------------------------------------
+Version 5.9.4 [V5-DEVEL], 2011-11-29
+- imuxsock: added capability to "annotate" messages with "trusted
+ information", which contains some properties obtained from the system
+ and as such sure to not be faked. This is inspired by the similar idea
+ introduced in systemd.
+- removed dependency on gcrypt for recently-enough GnuTLS
+ see: http://bugzilla.adiscon.com/show_bug.cgi?id=289
+- bugfix: imuxsock did no longer ignore message-provided timestamp, if
+ so configured (the *default*). Lead to no longer sub-second timestamps.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=281
+- bugfix: omfile returns fatal error code for things that go really wrong
+ previously, RS_RET_RESUME was returned, which lead to a loop inside the
+ rule engine as omfile could not really recover.
+- bugfix: rsyslogd -v always said 64 atomics were not present
+ thanks to mono_matsuko for the patch
+---------------------------------------------------------------------------
+Version 5.9.3 [V5-DEVEL], 2011-09-01
+- bugfix/security: off-by-two bug in legacy syslog parser, CVE-2011-3200
+- bugfix: mark message processing did not work correctly
+- added capability to emit config error location info for warnings
+ otherwise, omusrmsg's warning about new config format was not
+ accompanied by problem location.
+- bugfix: potential misaddressing in property replacer
+- bugfix: MSGID corruption in RFC5424 parser under some circumstances
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=275
+- bugfix: The NUL-Byte for the syslogtag was not copied in MsgDup (msg.c)
+---------------------------------------------------------------------------
+Version 5.9.2 [V5-DEVEL] (rgerhards), 2011-07-11
+- systemd support: set stdout/stderr to null - thx to Lennart for the patch
+- added support for the ":omusrmsg:" syntax in configuring user messages
+- added support for the ":omfile:" syntax for actions
+---------------------------------------------------------------------------
+Version 5.9.1 [V5-DEVEL] (rgerhards), 2011-06-30
+- added support for obtaining timestamp for kernel message from message
+ If the kernel time-stamps messages, time is now take from that
+ timestamp instead of the system time when the message was read. This
+ provides much better accuracy. Thanks to Lennart Poettering for
+ suggesting this feature and his help during implementation.
+- added support for obtaining timestamp from system for imuxsock
+ This permits to read the time a message was submitted to the system
+ log socket. Most importantly, this is provided in microsecond resolution.
+ So we are able to obtain high precision timestampis even for messages
+ that were - as is usual - not formatted with them. This also simplifies
+ things in regard to local time calculation in chroot environments.
+ Many thanks to Lennart Poettering for suggesting this feature,
+ providing some guidance on implementing it and coordinating getting the
+ necessary support into the Linux kernel.
+- bugfix: timestamp was incorrectly calculated for timezones with minute
+ offset
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=271
+- bugfix: problems in failover action handling
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=270
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=254
+- bugfix: mutex was invalidly left unlocked during action processing
+ At least one case where this can occur is during thread shutdown, which
+ may be initiated by lower activity. In most cases, this is quite
+ unlikely to happen. However, if it does, data structures may be
+ corrupted which could lead to fatal failure and segfault. I detected
+ this via a testbench test, not a user report. But I assume that some
+ users may have had unreproducable aborts that were cause by this bug.
+- bugfix: memory leak in imtcp & subsystems under some circumstances
+ This leak is tied to error conditions which lead to incorrect cleanup
+ of some data structures. [backport from v6]
+- bugfix/improvement:$WorkDirectory now gracefully handles trailing slashes
+---------------------------------------------------------------------------
+Version 5.9.0 [V5-DEVEL] (rgerhards), 2011-06-08
+- imfile: added $InputFileMaxLinesAtOnce directive
+- enhanced imfile to support input batching
+- added capability for imtcp and imptcp to activate keep-alive packets
+ at the socket layer. This has not been added to imttcp, as the latter is
+ only an experimental module, and one which did not prove to be useful.
+ reference: http://kb.monitorware.com/post20791.html
+- added support to control KEEPALIVE settings in imptcp
+ this has not yet been added to imtcp, but could be done on request.
+- $ActionName is now also used for naming of queues in impstats
+ as well as in the debug output
+- bugfix: do not open files with full privileges, if privs will be dropped
+ This make the privilege drop code more bulletproof, but breaks Ubuntu's
+ work-around for log files created by external programs with the wrong
+ user and/or group. Note that it was long said that this "functionality"
+ would break once we go for serious privilege drop code, so hopefully
+ nobody still depends on it (and, if so, they lost...).
+- bugfix: pipes not opened in full priv mode when privs are to be dropped
+- this begins a new devel branch for v5
+- better handling of queue i/o errors in disk queues. This is kind of a
+ bugfix, but a very intrusive one, this it goes into the devel version
+ first. Right now, "file not found" is handled and leads to the new
+ emergency mode, in which disk action is stopped and the queue run
+ in direct mode. An error message is emited if this happens.
+- added support for user-level PRI provided via systemd
+- added new config directive $InputTCPFlowControl to select if tcp
+ received messages shall be flagged as light delayable or not.
+- enhanced omhdfs to support batching mode. This permits to increase
+ performance, as we now call the HDFS API with much larger message
+ sizes and far more infrequently
+- bugfix: failover did not work correctly if repeated msg reduction was on
+ affected directive was: $ActionExecOnlyWhenPreviousIsSuspended on
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=236
+---------------------------------------------------------------------------
+Version 5.8.13 [V5-stable] 2012-08-22
+- bugfix: DA queue could cause abort
+- bugfix: "last message repeated n times" message was missing hostname
+ Thanks to Zdenek Salvet for finding this bug and to Bodik for reporting
+- bugfix "$PreserveFQDN on" was not honored in some modules
+ Thanks to bodik for reporting this bug.
+- bugfix: randomized IP option header in omudpspoof caused problems
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=327
+ Thanks to Rick Brown for helping to test out the patch.
+- bugfix: potential abort if output plugin logged message during shutdown
+ note that none of the rsyslog-provided plugins does this
+ Thanks to bodik and Rohit Prasad for alerting us on this bug and
+ analyzing it.
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=347
+- bugfix: multiple main queues with same queue file name was not detected
+ This lead to queue file corruption. While the root cause is a config
+ error, it is a bug that this important and hard to find config error
+ was not detected by rsyslog.
+---------------------------------------------------------------------------
+Version 5.8.12 [V5-stable] 2012-06-06
+- add small delay (50ms) after sending shutdown message
+ There seem to be cases where the shutdown message is otherwise not
+ processed, not even on an idle system. Thanks to Marcin for
+ bringing this problem up.
+- support for resolving huge groups
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=310
+ Thanks to Alec Warner for the patch
+- bugfix: delayable source could block action queue, even if there was
+ a disk queue associated with it. The root cause of this problem was
+ that it makes no sense to delay messages once they arrive in the
+ action queue - the "input" that is being held in that case is the main
+ queue worker, what makes no sense.
+ Thanks to Marcin for alerting us on this problem and providing
+ instructions to reproduce it.
+- bugfix: disk queue was not persisted on shutdown, regression of fix to
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ The new code also handles the case of shutdown of blocking light and
+ full delayable sources somewhat smarter and permits, assuming sufficient
+ timeouts, to persist message up to the max queue capacity. Also some nits
+ in debug instrumentation have been fixed.
+- bugfix/omudpspoof: problems, including abort, happened when run on
+ multiple threads. Root cause is that libnet is not thread-safe.
+ omudpspoof now guards libnet calls with their own mutex.
+- bugfix: if debug message could end up in log file when forking
+ if rsyslog was set to auto-background (thus fork, the default) and debug
+ mode to stdout was enabled, debug messages ended up in the first log file
+ opened. Currently, stdout logging is completely disabled in forking mode
+ (but writing to the debug log file is still possible). This is a change
+ in behavior, which is under review. If it causes problems to you,
+ please let us know.
+ Thanks to Tomas Heinrich for the patch.
+- bugfix/tcpflood: sending small test files did not work correctly
+- bugfix: potential hang due to mutex deadlock
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=316
+ Thanks to Andreas Piesk for reporting&analyzing this bug as well as
+ providing patches and other help in resolving it.
+- bugfix: property PROCID empty instead of proper nilvalue if not present
+ If it is not present, it must have the nilvalue "-" as of RFC5424
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=332
+ Thanks to John N for reporting this issue.
+---------------------------------------------------------------------------
+Version 5.8.11 [V5-stable] 2012-05-03
+- bugfix: ommysql did not properly init/exit the mysql runtime library
+ this could lead to segfaults. Triggering condition: multiple action
+ instances using ommysql. Thanks to Tomas Heinrich for reporting this
+ problem and providing an initial patch (which my solution is based on,
+ I need to add more code to clean the mess up).
+- bugfix: rsyslog did not terminate when delayable inputs were blocked
+ due to unavailable sources. Fixes:
+ http://bugzilla.adiscon.com/show_bug.cgi?id=299
+ Thanks to Marcin M for bringing up this problem and Andre Lorbach
+ for helping to reproduce and fix it.
+- bugfix: active input in "light delay state" could block rsyslog
+ termination, at least for prolonged period of time
+- bugfix: imptcp input name could not be set
+ config directive was accepted, but had no effect
+- bugfix: assigned ruleset was lost when using disk queues
+ This looked quite hard to diagnose for disk-assisted queues, as the
+ pure memory part worked well, but ruleset info was lost for messages
+ stored inside the disk queue.
+- bugfix: hostname was not requeried on HUP
+ Thanks to Per Jessen for reporting this bug and Marius Tomaschewski for
+ his help in testing the fix.
+- bugfix: inside queue.c, some thread cancel states were not correctly
+ reset. While this is a bug, we assume it did have no practical effect
+ because the reset as it was done was set to the state the code actually
+ had at this point. But better fix this...
+---------------------------------------------------------------------------
+Version 5.8.10 [V5-stable] 2012-04-05
+- bugfix: segfault on startup if $actionqueuefilename was missing for disk
+ queue config
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: segfault if disk-queue was started up with old queue file
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: memory leak in array passing output module mode
+---------------------------------------------------------------------------
+Version 5.8.9 [V5-stable] 2012-03-15
+- added tool to recover disk queue if .qi file is missing (recover_qi.pl)
+ Thanks to Kaiwang Chen for contributing this tool
+- bugfix: stopped DA queue was never processed after a restart due to a
+ regression from statistics module
+- added better doc for statsobj interface
+ Thanks to Kaiwang Chen for his suggestions and analysis in regard to the
+ stats subsystem.
+---------------------------------------------------------------------------
+Version 5.8.8 [V5-stable] 2012-03-05
+- added capability to use a local interface IP address as fromhost-ip for
+ imuxsock imklog
+ new config directives: $IMUXSockLocalIPIF, $klogLocalIPIF
+- added configuration directives to customize queue light delay marks
+ $MainMsgQueueLightDelayMark, $ActionQueueLightDelayMark; both
+ specify number of messages starting at which a delay happens.
+- bugfix: omprog made rsyslog abort on startup if not binary to
+ execute was configured
+- bugfix: imklog invalidly computed facility and severity
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=313
+---------------------------------------------------------------------------
+Version 5.8.7 [V5-stable] 2012-01-17
+- bugfix: instabilities when using RFC5424 header fields
+ Thanks to Kaiwang Chen for the patch
+- bugfix: imuxsock did truncate part of received message if it did not
+ contain a proper date. The truncation occurred because we removed that
+ part of the messages that was expected to be the date.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=295
+- bugfix: potential abort after reading invalid X.509 certificate
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=290
+ Thanks to Tomas Heinrich for the patch
+- bugfix: stats counter were not properly initialized on creation
+- FQDN hostname for multihomed host was not always set to the correct name
+ if multiple aliases existed. Thanks to Tomas Heinreich for the patch.
+- re-licensed larger parts of the codebase under the Apache license 2.0
+---------------------------------------------------------------------------
+Version 5.8.6 [V5-stable] 2011-10-21
+- bugfix: missing whitespace after property-based filter was not detected
+- bugfix: $OMFileFlushInterval period was doubled - now using correct value
+- bugfix: ActionQueue could malfunction due to index error
+ Thanks to Vlad Grigorescu for the patch
+- bugfix: $ActionExecOnlyOnce interval did not work properly
+ Thanks to Tomas Heinrich for the patch
+- bugfix: race condition when extracting program name, APPNAME, structured
+ data and PROCID (RFC5424 fields) could lead to invalid characters e.g.
+ in dynamic file names or during forwarding (general malfunction of these
+ fields in templates, mostly under heavy load)
+- bugfix: imuxsock did no longer ignore message-provided timestamp, if
+ so configured (the *default*). Lead to no longer sub-second timestamps.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=281
+- bugfix: omfile returns fatal error code for things that go really wrong
+ previously, RS_RET_RESUME was returned, which lead to a loop inside the
+ rule engine as omfile could not really recover.
+- bugfix: imfile did invalid system call under some circumstances
+ when a file that was to be monitored did not exist BUT the state file
+ actually existed. Mostly a cosmetic issue. Root cause was incomplete
+ error checking in stream.c; so patch may affect other code areas.
+- bugfix: rsyslogd -v always said 64 atomics were not present
+ thanks to mono_matsuko for the patch
+---------------------------------------------------------------------------
+Version 5.8.5 [V5-stable] (rgerhards/al), 2011-09-01
+- bugfix/security: off-by-two bug in legacy syslog parser, CVE-2011-3200
+- bugfix: mark message processing did not work correctly
+- bugfix: potential hang condition during tag emulation
+- bugfix: too-early string termination during tag emulation
+- bugfix: The NUL-Byte for the syslogtag was not copied in MsgDup (msg.c)
+- bugfix: fixed incorrect state handling for Discard Action (transactions)
+ Note: This caused all messages in a batch to be set to COMMITTED,
+ even if they were discarded.
+---------------------------------------------------------------------------
+Version 5.8.4 [V5-stable] (al), 2011-08-10
+- bugfix: potential misaddressing in property replacer
+- bugfix: memcpy overflow can occur in allowed sender checking
+ if a name is resolved to IPv4-mapped-on-IPv6 address
+ Found by Ismail Dönmez at suse
+- bugfix: potential misaddressing in property replacer
+- bugfix: MSGID corruption in RFC5424 parser under some circumstances
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=275
+---------------------------------------------------------------------------
+Version 5.8.3 [V5-stable] (rgerhards), 2011-07-11
+- systemd support: set stdout/stderr to null - thx to Lennart for the patch
+- added support for the ":omusrmsg:" syntax in configuring user messages
+- added support for the ":omfile:" syntax for actions
+ Note: previous outchannel syntax will generate a warning message. This
+ may be surprising to some users, but it is quite urgent to alert them
+ of the new syntax as v6 can no longer support the previous one.
+---------------------------------------------------------------------------
+Version 5.8.2 [V5-stable] (rgerhards), 2011-06-21
+- bugfix: problems in failover action handling
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=270
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=254
+- bugfix: mutex was invalidly left unlocked during action processing
+ At least one case where this can occur is during thread shutdown, which
+ may be initiated by lower activity. In most cases, this is quite
+ unlikely to happen. However, if it does, data structures may be
+ corrupted which could lead to fatal failure and segfault. I detected
+ this via a testbench test, not a user report. But I assume that some
+ users may have had unreproducable aborts that were cause by this bug.
+- bugfix: memory leak in imtcp & subsystems under some circumstances
+ This leak is tied to error conditions which lead to incorrect cleanup
+ of some data structures. [backport from v6]
+- bugfix/improvement:$WorkDirectory now gracefully handles trailing slashes
+---------------------------------------------------------------------------
+Version 5.8.1 [V5-stable] (rgerhards), 2011-05-19
+- bugfix: invalid processing in QUEUE_FULL condition
+ If the the multi-submit interface was used and a QUEUE_FULL condition
+ occurred, the failed message was properly destructed. However, the
+ rest of the input batch, if it existed, was not processed. So this
+ lead to potential loss of messages and a memory leak. The potential
+ loss of messages was IMHO minor, because they would have been dropped
+ in most cases due to the queue remaining full, but very few lucky ones
+ from the batch may have made it. Anyhow, this has now been changed so
+ that the rest of the batch is properly tried to be enqueued and, if
+ not possible, destructed.
+- new module mmsnmptrapd, a sample message modification module
+ This can be useful to reformat snmptrapd messages and also serves as
+ a sample for how to write message modification modules using the
+ output module interface. Note that we introduced this new
+ functionality directly into the stable release, as it does not
+ modify the core and as such cannot have any side-effects if it is
+ not used (and thus the risk is solely on users requiring that
+ functionality).
+- bugfix: rate-limiting inside imuxsock did not work 100% correct
+ reason was that a global config variable was invalidly accessed where a
+ listener variable should have been used.
+ Also performance-improved the case when rate limiting is turned off (this
+ is a very unintrusive change, thus done directly to the stable version).
+- bugfix: $myhostname not available in RainerScript (and no error message)
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=233
+- bugfix: memory and file descriptor leak in stream processing
+ Leaks could occur under some circumstances if the file stream handler
+ errored out during the open call. Among others, this could cause very
+ big memory leaks if there were a problem with unreadable disk queue
+ files. In regard to the memory leak, this
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=256
+- bugfix: doc for impstats had wrong config statements
+ also, config statements were named a bit inconsistent, resolved that
+ problem by introducing an alias and only documenting the consistent
+ statements
+ Thanks to Marcin for bringing up this problem.
+- bugfix: IPv6-address could not be specified in omrelp
+ this was due to improper parsing of ":"
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=250
+- bugfix: TCP connection invalidly aborted when messages needed to be
+ discarded (due to QUEUE_FULL or similar problem)
+- bugfix: $LocalHostName was not honored under all circumstances
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=258
+- bugfix(minor): improper template function call in syslogd.c
+---------------------------------------------------------------------------
+Version 5.8.0 [V5-stable] (rgerhards), 2011-04-12
+
+This is the new v5-stable branch, importing all feature from the 5.7.x
+versions. To see what has changed in regard to the previous v5-stable,
+check the Changelog for 5.7.x below.
+
+- bugfix: race condition in deferred name resolution
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=238
+ Special thanks to Marcin for his persistence in helping to solve this
+ bug.
+- bugfix: DA queue was never shutdown once it was started
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=241
+---------------------------------------------------------------------------
+Version 5.7.10 [V5-BETA] (rgerhards), 2011-03-29
+- bugfix: ompgsql did not work properly with ANSI SQL strings
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=229
+- bugfix: rsyslog did not build with --disable-regexp configure option
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=243
+- bugfix: PRI was invalid on Solaris for message from local log socket
+- enhance: added $BOM system property to ease writing byte order masks
+- bugfix: RFC5424 parser confused by empty structured data
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=237
+- bugfix: error return from strgen caused abort, now causes action to be
+ ignored (just like a failed filter)
+- new sample plugin for a strgen to generate sql statement consumable
+ by a database plugin
+- bugfix: strgen could not be used together with database outputs
+ because the sql/stdsql option could not be specified. This has been
+ solved by permitting the strgen to include the opton inside its name.
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=195
+---------------------------------------------------------------------------
+Version 5.7.9 [V5-BETA] (rgerhards), 2011-03-16
+- improved testbench
+ among others, life tests for ommysql (against a test database) have
+ been added, valgrind-based testing enhanced, ...
+- enhance: fallback *at runtime* to epoll_create if epoll_create1 is not
+ available. Thanks to Michael Biebl for analysis and patch!
+- bugfix: failover did not work correctly if repeated msg reduction was on
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=236
+ affected directive was: $ActionExecOnlyWhenPreviousIsSuspended on
+- bugfix: minor memory leak in omlibdbi (< 1k per instance and run)
+- bugfix: (regression) omhdfs did no longer compile
+- bugfix: omlibdbi did not use password from rsyslog.conf
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=203
+---------------------------------------------------------------------------
+Version 5.7.8 [V5-BETA] (rgerhards), 2011-03-09
+- systemd support somewhat improved (can now take over existing log sockt)
+- bugfix: discard action did not work under some circumstances
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=217
+- bugfix: file descriptor leak in gnutls netstream driver
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=222
+---------------------------------------------------------------------------
+Version 5.7.7 [V5-BETA] (rgerhards), 2011-03-02
+- bugfix: potential abort condition when $RepeatedMsgReduction set to on
+ as well as potentially in a number of other places where MsgDup() was
+ used. This only happened when the imudp input module was used and it
+ depended on name resolution not yet had taken place. In other words,
+ this was a strange problem that could lead to hard to diagnose
+ instability. So if you experience instability, chances are good that
+ this fix will help.
+---------------------------------------------------------------------------
+Version 5.7.6 [V5-BETA] (rgerhards), 2011-02-25
+- bugfix: fixed a memory leak and potential abort condition
+ this could happen if multiple rulesets were used and some output batches
+ contained messages belonging to more than one ruleset.
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=226
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=218
+- bugfix: memory leak when $RepeatedMsgReduction on was used
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=225
+---------------------------------------------------------------------------
+Version 5.7.5 [V5-BETA] (rgerhards), 2011-02-23
+- enhance: imfile did not yet support multiple rulesets, now added
+ we do this directly in the beta because a) it does not affect existing
+ functionality and b) one may argue that this missing functionality is
+ close to a bug.
+- improved testbench, added tests for imuxsock
+- bugfix: imuxsock did no longer sanitize received messages
+ This was a regression from the imuxsock partial rewrite. Happened
+ because the message is no longer run through the standard parsers.
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=224
+- bugfix: minor race condition in action.c - considered cosmetic
+ This is considered cosmetic as multiple threads tried to write exactly
+ the same value into the same memory location without sync. The method
+ has been changed so this can no longer happen.
+---------------------------------------------------------------------------
+Version 5.7.4 [V5-BETA] (rgerhards), 2011-02-17
+- added pmsnare parser module (written by David Lang)
+- enhanced imfile to support non-cancel input termination
+- improved systemd socket activation thanks to Marius Tomaschewski
+- improved error reporting for $WorkDirectory
+ non-existence and other detectable problems are now reported,
+ and the work directory is NOT set in this case
+- bugfix: pmsnare caused abort under some conditions
+- bugfix: abort if imfile reads file line of more than 64KiB
+ Thanks to Peter Eisentraut for reporting and analyzing this problem.
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=221
+- bugfix: queue engine did not properly slow down inputs in FULL_DELAY mode
+ when in disk-assisted mode. This especially affected imfile, which
+ created unnecessarily queue files if a large set of input file data was
+ to process.
+- bugfix: very long running actions could prevent shutdown under some
+ circumstances. This has now been solved, at least for common
+ situations.
+- bugfix: fixed compile problem due to empty structs
+ this occurred only on some platforms/compilers. thanks to Dražen Kačar
+ for the fix
+---------------------------------------------------------------------------
+Version 5.7.3 [V5-BETA] (rgerhards), 2011-02-07
+- added support for processing multi-line messages in imfile
+- added $IMUDPSchedulingPolicy and $IMUDPSchedulingPriority config settings
+- added $LocalHostName config directive
+- bugfix: fixed build problems on some platforms
+ namely those that have 32bit atomic operations but not 64 bit ones
+- bugfix: local hostname was pulled too-early, so that some config
+ directives (namely FQDN settings) did not have any effect
+- bugfix: imfile did duplicate messages under some circumstances
+- added $OMMySQLConfigFile config directive
+- added $OMMySQLConfigSection config directive
+---------------------------------------------------------------------------
+Version 5.7.2 [V5-DEVEL] (rgerhards), 2010-11-26
+- bugfix(important): problem in TLS handling could cause rsyslog to loop
+ in a tight loop, effectively disabling functionality and bearing the
+ risk of unresponsiveness of the whole system.
+ Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
+- bugfix: imfile state file was not written when relative file name
+ for it was specified
+- bugfix: compile failed on systems without epoll_create1()
+ Thanks to David Hill for providing a fix.
+- bugfix: atomic increment for msg object may not work correct on all
+ platforms. Thanks to Chris Metcalf for the patch
+- bugfix: replacements for atomic operations for non-int sized types had
+ problems. At least one instance of that problem could potentially lead
+ to abort (inside omfile).
+---------------------------------------------------------------------------
+Version 5.7.1 [V5-DEVEL] (rgerhards), 2010-10-05
+- support for Hadoop's HDFS added (via omhdfs)
+- imuxsock now optionally use SCM_CREDENTIALS to pull the pid from the log
+ socket itself
+ (thanks to Lennart Poettering for the suggesting this feature)
+- imuxsock now optionally uses per-process input rate limiting, guarding the
+ user against processes spamming the system log
+ (thanks to Lennart Poettering for suggesting this feature)
+- added new config statements
+ * $InputUnixListenSocketUsePIDFromSystem
+ * $SystemLogUsePIDFromSystem
+ * $SystemLogRateLimitInterval
+ * $SystemLogRateLimitBurst
+ * $SystemLogRateLimitSeverity
+ * $IMUxSockRateLimitInterval
+ * $IMUxSockRateLimitBurst
+ * $IMUxSockRateLimitSeverity
+- imuxsock now supports up to 50 different sockets for input
+- some code cleanup in imuxsock (consider this a release a major
+ modification, especially if problems show up)
+- bugfix: /dev/log was unlinked even when passed in from systemd
+ in which case it should be preserved as systemd owns it
+---------------------------------------------------------------------------
+Version 5.7.0 [V5-DEVEL] (rgerhards), 2010-09-16
+- added module impstat to emit periodic statistics on rsyslog counters
+- support for systemd officially added
+ * acquire /dev/log socket optionally from systemd
+ thanks to Lennart Poettering for this patch
+ * sd-systemd API added as part of rsyslog runtime library
+---------------------------------------------------------------------------
+Version 5.6.5 [V5-STABLE] (rgerhards), 2011-03-22
+- bugfix: failover did not work correctly if repeated msg reduction was on
+ affected directive was: $ActionExecOnlyWhenPreviousIsSuspended on
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=236
+- bugfix: omlibdbi did not use password from rsyslog.con
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=203
+- bugfix(kind of): tell users that config graph can currently not be
+ generated
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=232
+- bugfix: discard action did not work under some circumstances
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=217
+ (backport from 5.7.8)
+---------------------------------------------------------------------------
+Version 5.6.4 [V5-STABLE] (rgerhards), 2011-03-03
+- bugfix: potential abort condition when $RepeatedMsgReduction set to on
+ as well as potentially in a number of other places where MsgDup() was
+ used. This only happened when the imudp input module was used and it
+ depended on name resolution not yet had taken place. In other words,
+ this was a strange problem that could lead to hard to diagnose
+ instability. So if you experience instability, chances are good that
+ this fix will help.
+- bugfix: fixed a memory leak and potential abort condition
+ this could happen if multiple rulesets were used and some output batches
+ contained messages belonging to more than one ruleset.
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=226
+ fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=218
+- bugfix: memory leak when $RepeatedMsgReduction on was used
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=225
+---------------------------------------------------------------------------
+Version 5.6.3 [V5-STABLE] (rgerhards), 2011-01-26
+- bugfix: action processor released memory too early, resulting in
+ potential issue in retry cases (but very unlikely due to another
+ bug, which I also fixed -- only after the fix this problem here
+ became actually visible).
+- bugfix: batch processing flagged invalid message as "bad" under some
+ circumstances
+- bugfix: uninitialized variable could cause issues under extreme conditions
+ plus some minor nits. This was found after a clang static code analyzer
+ analysis (great tool, and special thanks to Marcin for telling me about
+ it!)
+- bugfix: batches which had actions in error were not properly retried in
+ all cases
+- bugfix: imfile did duplicate messages under some circumstances
+- bugfix: testbench was not activated if no Java was present on system
+ ... what actually was a left-over. Java is no longer required.
+---------------------------------------------------------------------------
+Version 5.6.2 [V5-STABLE] (rgerhards), 2010-11-30
+- bugfix: compile failed on systems without epoll_create1()
+ Thanks to David Hill for providing a fix.
+- bugfix: atomic increment for msg object may not work correct on all
+ platforms. Thanks to Chris Metcalf for the patch
+- bugfix: replacements for atomic operations for non-int sized types had
+ problems. At least one instance of that problem could potentially lead
+ to abort (inside omfile).
+- added the $InputFilePersistStateInterval config directive to imfile
+- changed imfile so that the state file is never deleted (makes imfile
+ more robust in regard to fatal failures)
+- bugfix: a slightly more informative error message when a TCP
+ connections is aborted
+---------------------------------------------------------------------------
+Version 5.6.1 [V5-STABLE] (rgerhards), 2010-11-24
+- bugfix(important): problem in TLS handling could cause rsyslog to loop
+ in a tight loop, effectively disabling functionality and bearing the
+ risk of unresponsiveness of the whole system.
+ Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
+- permitted imptcp to work on systems which support epoll(), but not
+ epoll_create().
+ Bug: http://bugzilla.adiscon.com/show_bug.cgi?id=204
+ Thanks to Nicholas Brink for reporting this problem.
+- bugfix: testbench failed if imptcp was not enabled
+- bugfix: segfault when an *empty* template was used
+ Bug: http://bugzilla.adiscon.com/show_bug.cgi?id=206
+ Thanks to David Hill for alerting us.
+- bugfix: compile failed with --enable-unlimited-select
+ thanks varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 5.6.0 [V5-STABLE] (rgerhards), 2010-10-19
+
+This release brings all changes and enhancements of the 5.5.x series
+to the v5-stable branch.
+
+- bugfix: a couple of problems that imfile had on some platforms, namely
+ Ubuntu (not their fault, but occurred there)
+- bugfix: imfile utilizes 32 bit to track offset. Most importantly,
+ this problem can not experienced on Fedora 64 bit OS (which has
+ 64 bit long's!)
+---------------------------------------------------------------------------
+Version 5.5.7 [V5-BETA] (rgerhards), 2010-08-09
+- changed omudpspoof default spoof address to simplify typical use case
+ thanks to David Lang for suggesting this
+- doc bugfix: pmlastmsg doc samples had errors
+- bugfix[minor]: pmrfc3164sd had invalid name (resided in rsyslog name
+ space, what should not be the case for a contributed module)
+- added omuxsock, which permits to write message to local Unix sockets
+ this is the counterpart to imuxsock, enabling fast local forwarding
+---------------------------------------------------------------------------
+Version 5.5.6 [DEVEL] (rgerhards), 2010-07-21
+- added parser modules
+ * pmlastmsg, which supports the notoriously malformed "last message
+ repeated n times" messages from some syslogd's (namely sysklogd)
+ * pmrfc3164sd (contributed), supports RFC5424 structured data in
+ RFC3164 messages [untested]
+- added new module type "string generator", used to speed up output
+ processing. Expected speedup for (typical) rsyslog processing is
+ roughly 5 to 6 percent compared to using string-based templates.
+ They may also be used to do more complex formatting with custom
+ C code, what provided greater flexibility and probably far higher
+ speed, for example if using multiple regular expressions within a
+ template.
+- added 4 string generators for
+ * RSYSLOG_FileFormat
+ * RSYSLOG_TraditionalFileFormat
+ * RSYSLOG_ForwardFormat
+ * RSYSLOG_TraditionalForwardFormat
+- bugfix: mutexes used to simulate atomic instructions were not destructed
+- bugfix: regression caused more locking action in msg.c than necessary
+- bugfix: "$ActionExecOnlyWhenPreviousIsSuspended on" was broken
+- bugfix: segfault on HUP when "HUPIsRestart" was set to "on"
+ thanks varmojfekoj for the patch
+- bugfix: default for $OMFileFlushOnTXEnd was wrong ("off").
+ This, in default mode, caused buffered writing to be used, what
+ means that it looked like no output were written or partial
+ lines. Thanks to Michael Biebl for pointing out this bug.
+- bugfix: programname filter in ! configuration can not be reset
+ Thanks to Kiss Gabor for the patch.
+---------------------------------------------------------------------------
+Version 5.5.5 [DEVEL] (rgerhards), 2010-05-20
+- added new cancel-reduced action thread termination method
+ We now manage to cancel threads that block inside a retry loop to
+ terminate without the need to cancel the thread. Avoiding cancellation
+ helps keep the system complexity minimal and thus provides for better
+ stability. This also solves some issues with improper shutdown when
+ inside an action retry loop.
+---------------------------------------------------------------------------
+Version 5.5.4 [DEVEL] (rgerhards), 2010-05-03
+- This version offers full support for Solaris on Intel and Sparc
+- bugfix: problems with atomic operations emulation
+ replaced atomic operation emulation with new code. The previous code
+ seemed to have some issue and also limited concurrency severely. The
+ whole atomic operation emulation has been rewritten.
+- bugfix: netstream ptcp support class was not correctly build on systems
+ without epoll() support
+- bugfix: segfault on Solaris/Sparc
+---------------------------------------------------------------------------
+Version 5.5.3 [DEVEL] (rgerhards), 2010-04-09
+- added basic but functional support for Solaris
+- imported many bugfixes from 3.6.2/4.6.1 (see ChangeLog below!)
+- added new property replacer option "date-rfc3164-buggyday" primarily
+ to ease migration from syslog-ng. See property replacer doc for
+ details.
+- added capability to turn off standard LF delimiter in TCP server
+ via new directive "$InputTCPServerDisableLFDelimiter on"
+- bugfix: failed to compile on systems without epoll support
+- bugfix: comment char ('#') in literal terminated script parsing
+ and thus could not be used.
+ but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
+ [merged in from v3.22.2]
+- imported patches from 4.6.0:
+ * improved testbench to contain samples for totally malformed messages
+ which miss parts of the message content
+ * bugfix: some malformed messages could lead to a missing LF inside files
+ or some other missing parts of the template content.
+ * bugfix: if a message ended immediately with a hostname, the hostname
+ was mistakenly interpreted as TAG, and localhost be used as hostname
+---------------------------------------------------------------------------
+Version 5.5.2 [DEVEL] (rgerhards), 2010-02-05
+- applied patches that make rsyslog compile under Apple OS X.
+ Thanks to trey for providing these.
+- replaced data type "bool" by "sbool" because this created some
+ portability issues.
+- added $Escape8BitCharactersOnReceive directive
+ Thanks to David Lang for suggesting it.
+- worked around an issue where omfile failed to compile on 32 bit platforms
+ under some circumstances (this smells like a gcc problem, but a simple
+ solution was available). Thanks to Kenneth Marshall for some advice.
+- extended testbench
+---------------------------------------------------------------------------
+Version 5.5.1 [DEVEL] (rgerhards), 2009-11-27
+- introduced the ability for netstream drivers to utilize an epoll interface
+ This offers increased performance and removes the select() FDSET size
+ limit from imtcp. Note that we fall back to select() if there is no
+ epoll netstream drivers. So far, an epoll driver has only been
+ implemented for plain tcp syslog, the rest will follow once the code
+ proves well in practice AND there is demand.
+- re-implemented $EscapeControlCharacterTab config directive
+ Based on Jonathan Bond-Caron's patch for v4. This now also includes some
+ automated tests.
+- bugfix: enabling GSSServer crashes rsyslog startup
+ Thanks to Tomas Kubina for the patch [imgssapi]
+- bugfix (kind of): check if TCP connection is still alive if using TLS
+ Thanks to Jonathan Bond-Caron for the patch.
+---------------------------------------------------------------------------
+Version 5.5.0 [DEVEL] (rgerhards), 2009-11-18
+- moved DNS resolution code out of imudp and into the backend processing
+ Most importantly, DNS resolution now never happens if the resolved name
+ is not required. Note that this applies to imudp - for the other inputs,
+ DNS resolution almost comes for free, so we do not do it there. However,
+ the new method has been implemented in a generic way and as such may
+ also be used by other modules in the future.
+- added option to use unlimited-size select() calls
+ Thanks to varmojfekoj for the patch
+ This is not done in imudp, as it natively supports epoll().
+- doc: improved description of what loadable modules can do
+---------------------------------------------------------------------------
+Version 5.4.2 [v5-stable] (rgerhards), 2010-03-??
+- bugfix(kind of): output plugin retry behavior could cause engine to loop
+ The rsyslog engine did not guard itself against output modules that do
+ not properly convey back the tryResume() behavior. This then leads to
+ what looks like an endless loop. I consider this to be a bug of the
+ engine not only because it should be hardened against plugin misbehavior,
+ but also because plugins may not be totally able to avoid this situation
+ (depending on the type of and processing done by the plugin).
+- bugfix: testbench failed when not executed in UTC+1 timezone
+ accidentally, the time zone information was kept inside some
+ to-be-checked-for responses
+- temporary bugfix replaced by permanent one for
+ message-induced off-by-one error (potential segfault) (see 4.6.2)
+ The analysis has been completed and a better fix been crafted and
+ integrated.
+- bugfix(minor): status variable was uninitialized
+ However, this would have caused harm only if NO parser modules at
+ all were loaded, which would lead to a defunctional configuration
+ at all. And, even more important, this is impossible as two parser
+ modules are built-in and thus can not be "not loaded", so we always
+ have a minimum of two.
+---------------------------------------------------------------------------
+Version 5.4.1 [v5-stable] (rgerhards), 2010-03-??
+- added new property replacer option "date-rfc3164-buggyday" primarily
+ to ease migration from syslog-ng. See property replacer doc for
+ details. [backport from 5.5.3 because urgently needed by some]
+- imported all bugfixes vom 4.6.2 (see below)
+---------------------------------------------------------------------------
+Version 5.4.0 [v5-stable] (rgerhards), 2010-03-08
+***************************************************************************
+* This is a new stable v5 version. It contains all fixes and enhancements *
+* made during the 5.3.x phase as well as those listed below. *
+* Note that the 5.2.x series was quite buggy and as such all users are *
+* strongly advised to upgrade to 5.4.0. *
+***************************************************************************
+- bugfix: omruleset failed to work in many cases
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=179
+ Thanks to Ryan B. Lynch for reporting this issue.
+- bugfix: comment char ('#') in literal terminated script parsing
+ and thus could not be used.
+ but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
+ [merged in from v3.22.2]
+---------------------------------------------------------------------------
+Version 5.3.7 [BETA] (rgerhards), 2010-01-27
+- bugfix: queues in direct mode could case a segfault, especially if an
+ action failed for action queues. The issue was an invalid increment of
+ a stack-based pointer which lead to destruction of the stack frame and
+ thus a segfault on function return.
+ Thanks to Michael Biebl for alerting us on this problem.
+- bugfix: hostname accidentally set to IP address for some message sources,
+ for example imudp. Thanks to Anton for reporting this bug. [imported v4]
+- bugfix: ompgsql had problems with transaction support, what actually
+ rendered it unusable. Thanks to forum user "horhe" for alerting me
+ on this bug and helping to debug/fix it! [imported from 5.3.6]
+- bugfix: $CreateDirs variable not properly initialized, default thus
+ was random (but most often "on") [imported from v3]
+- bugfix: potential segfaults during queue shutdown
+ (bugs require certain non-standard settings to appear)
+ Thanks to varmojfekoj for the patch [imported from 4.5.8]
+ [backport from 5.5.2]
+- bugfix: wrong memory assignment for a config variable (probably
+ without causing any harm) [backport from 5.2.2]
+- bugfix: rsyslog hangs when writing to a named pipe which nobody was
+ reading. Thanks to Michael Biebl for reporting this bug.
+ Bugzilla entry: http://bugzilla.adiscon.com/show_bug.cgi?id=169
+ [imported from 4.5.8]
+---------------------------------------------------------------------------
+Version 5.3.6 [BETA] (rgerhards), 2010-01-13
+- bugfix: ompgsql did not properly check the server connection in
+ tryResume(), which could lead to rsyslog running in a tight loop
+- bugfix: suspension during beginTransaction() was not properly handled
+ by rsyslog core
+- bugfix: omfile output was only written when buffer was full, not at
+ end of transaction
+- bugfix: commit transaction was not properly conveyed to message layer,
+ potentially resulting in non-message destruction and thus hangs
+- bugfix: enabling GSSServer crashes rsyslog startup
+ Thanks to Tomas Kubina for the patch [imgssapi]
+- bugfix (kind of): check if TCP connection is still alive if using TLS
+ Thanks to Jonathan Bond-Caron for the patch.
+- bugfix: $CreateDirs variable not properly initialized, default thus
+ was random (but most often "on") [imported from v3]
+- bugfix: ompgsql had problems with transaction support, what actually
+ rendered it unusable. Thanks to forum user "horhe" for alerting me
+ on this bug and helping to debug/fix it!
+- bugfix: memory leak when sending messages in zip-compressed format
+ Thanks to Naoya Nakazawa for analyzing this issue and providing a patch.
+- worked around an issue where omfile failed to compile on 32 bit platforms
+ under some circumstances (this smells like a gcc problem, but a simple
+ solution was available). Thanks to Kenneth Marshall for some advice.
+ [backported from 5.5.x branch]
+---------------------------------------------------------------------------
+Version 5.3.5 [BETA] (rgerhards), 2009-11-13
+- some light performance enhancement by replacing time() call with much
+ faster (at least under linux) gettimeofday() calls.
+- some improvement of omfile performance with dynafiles
+ saved costly time() calls by employing a logical clock, which is
+ sufficient for the use case
+- bugfix: omudpspoof miscalculated source and destination ports
+ while this was probably not noticed for source ports, it resulted in
+ almost all destination ports being wrong, except for the default port
+ of 514, which by virtue of its binary representation was calculated
+ correct (and probably thus the bug not earlier detected).
+- bugfixes imported from earlier releases
+ * bugfix: named pipes did no longer work (they always got an open error)
+ this was a regression from the omfile rewrite in 4.5.0
+ * bugfix(testbench): sequence check was not always performed correctly,
+ that could result in tests reporting success when they actually failed
+- improved testbench: added tests for UDP forwarding and omudpspoof
+- doc bugfix: omudpspoof had wrong config command names ("om" missing)
+- bugfix [imported from 4.4.3]: $ActionExecOnlyOnceEveryInterval did
+ not work.
+- [inport v4] improved testbench, contains now tcp and gzip test cases
+- [import v4] added a so-called "On Demand Debug" mode, in which debug
+ output can be generated only after the process has started, but not right
+ from the beginning. This is assumed to be useful for hard-to-find bugs.
+ Also improved the doc on the debug system.
+- bugfix: segfault on startup when -q or -Q option was given
+ [imported from v3-stable]
+---------------------------------------------------------------------------
+Version 5.3.4 [DEVEL] (rgerhards), 2009-11-04
+- added the ability to create custom message parsers
+- added $RulesetParser config directive that permits to bind specific
+ parsers to specific rulesets
+- added omruleset output module, which provides great flexibility in
+ action processing. THIS IS A VERY IMPORTANT ADDITION, see its doc
+ for why.
+- added the capability to have ruleset-specific main message queues
+ This offers considerable additional flexibility AND superior performance
+ (in cases where multiple inputs now can avoid lock contention)
+- bugfix: correct default for escape ('#') character restored
+ This was accidentally changed to '\\', thanks to David Lang for reporting
+- bugfix(testbench): testcase did not properly wait for rsyslogd shutdown
+ thus some unpredictable behavior and a false negative test result
+ could occur.
+---------------------------------------------------------------------------
+Version 5.3.3 [DEVEL] (rgerhards), 2009-10-27
+- simplified and thus speeded up the queue engine, also fixed some
+ potential race conditions (in very unusual shutdown conditions)
+ along the way. The threading model has seriously changes, so there may
+ be some regressions.
+- enhanced test environment (including testbench): support for enhancing
+ probability of memory addressing failure by using non-NULL default
+ value for malloced memory (optional, only if requested by configure
+ option). This helps to track down some otherwise undetected issues
+ within the testbench.
+- bugfix: potential abort if inputname property was not set
+ primarily a problem of imdiag
+- bugfix: message processing states were not set correctly in all cases
+ however, this had no negative effect, as the message processing state
+ was not evaluated when a batch was deleted, and that was the only case
+ where the state could be wrong.
+---------------------------------------------------------------------------
+Version 5.3.2 [DEVEL] (rgerhards), 2009-10-21
+- enhanced omfile to support transactional interface. This will increase
+ performance in many cases.
+- added multi-ruleset support to imudp
+- re-enabled input thread termination handling that does avoid thread
+ cancellation where possible. This provides a more reliable mode of
+ rsyslogd termination (canceling threads my result in not properly
+ freed resources and potential later hangs, even though we perform
+ proper cancel handling in our code). This is part of an effort to
+ reduce thread cancellation as much as possible in rsyslog.
+ NOTE: the code previously written code for this functionality had a
+ subtle race condition. The new code solves that.
+- enhanced immark to support non-cancel input module termination
+- improved imudp so that epoll can be used in more environments,
+ fixed potential compile time problem if EPOLL_CLOEXEC is not available.
+- some cleanup/slight improvement:
+ * changed imuxsock to no longer use deprecated submitAndParseMsg() IF
+ * changed submitAndParseMsg() interface to be a wrapper around the new
+ way of message creation/submission. This enables older plugins to be
+ used together with the new interface. The removal also enables us to
+ drop a lot of duplicate code, reducing complexity and increasing
+ maintainability.
+- bugfix: segfault when starting up with an invalid .qi file for a disk queue
+ Failed for both pure disk as well as DA queues. Now, we emit an error
+ message and disable disk queueing facility.
+- bugfix: potential segfault on messages with empty MSG part. This was a
+ recently introduced regression.
+- bugfix: debug string larger than 1K were improperly displayed. Max size
+ is now 32K, and if a string is even longer it is meaningfully truncated.
+---------------------------------------------------------------------------
+Version 5.3.1 [DEVEL] (rgerhards), 2009-10-05
+- added $AbortOnUncleanConfig directive - permits to prevent startup when
+ there are problems with the configuration file. See it's doc for
+ details.
+- included some important fixes from v4-stable:
+ * bugfix: invalid handling of zero-sized messages
+ * bugfix: zero-sized UDP messages are no longer processed
+ * bugfix: random data could be appended to message
+ * bugfix: reverse lookup reduction logic in imudp do DNS queries too often
+- bugfixes imported from 4.5.4:
+ * bugfix: potential segfault in stream writer on destruction
+ * bugfix: potential race in object loader (obj.c) during use/release
+ * bugfixes: potential problems in out file zip writer
+---------------------------------------------------------------------------
+Version 5.3.0 [DEVEL] (rgerhards), 2009-09-14
+- begun to add simple GUI programs to gain insight into running rsyslogd
+ instances and help setup and troubleshooting (active via the
+ --enable-gui ./configure switch)
+- changed imudp to utilize epoll(), where available. This shall provide
+ slightly better performance (just slightly because we called select()
+ rather infrequently on a busy system)
+---------------------------------------------------------------------------
+Version 5.2.2 [v5-stable] (rgerhards), 2009-11-??
+- bugfix: enabling GSSServer crashes rsyslog startup
+ Thanks to Tomas Kubina for the patch [imgssapi]
+---------------------------------------------------------------------------
+Version 5.2.1 [v5-stable] (rgerhards), 2009-11-02
+- bugfix [imported from 4.4.3]: $ActionExecOnlyOnceEveryInterval did
+ not work.
+- bugfix: segfault on startup when -q or -Q option was given
+ [imported from v3-stable]
+---------------------------------------------------------------------------
+Version 5.2.0 [v5-stable] (rgerhards), 2009-11-02
+This is a re-release of version 5.1.6 as stable after we did not get any bug
+reports during the whole beta phase. Still, this first v5-stable may not be
+as stable as one hopes for, I am not sure if we did not get bug reports
+just because nobody tried it. Anyhow, we need to go forward and so we
+have the initial v5-stable.
+---------------------------------------------------------------------------
+Version 5.1.6 [v5-beta] (rgerhards), 2009-10-15
+- feature imports from v4.5.6
+- bugfix: potential race condition when queue worker threads were
+ terminated
+- bugfix: solved potential (temporary) stall of messages when the queue was
+ almost empty and few new data added (caused testbench to sometimes hang!)
+- fixed some race condition in testbench
+- added more elaborate diagnostics to parts of the testbench
+- bugfixes imported from 4.5.4:
+ * bugfix: potential segfault in stream writer on destruction
+ * bugfix: potential race in object loader (obj.c) during use/release
+ * bugfixes: potential problems in out file zip writer
+- included some important fixes from 4.4.2:
+ * bugfix: invalid handling of zero-sized messages
+ * bugfix: zero-sized UDP messages are no longer processed
+ * bugfix: random data could be appended to message
+ * bugfix: reverse lookup reduction logic in imudp do DNS queries too often
+---------------------------------------------------------------------------
+Version 5.1.5 [v5-beta] (rgerhards), 2009-09-11
+- added new config option $ActionWriteAllMarkMessages
+ this option permits to process mark messages under all circumstances,
+ even if an action was recently called. This can be useful to use mark
+ messages as a kind of heartbeat.
+- added new config option $InputUnixListenSocketCreatePath
+ to permit the auto-creation of paths to additional log sockets. This
+ turns out to be useful if they reside on temporary file systems and
+ rsyslogd starts up before the daemons that create these sockets
+ (rsyslogd always creates the socket itself if it does not exist).
+- added $LogRSyslogStatusMessages configuration directive
+ permitting to turn off rsyslog start/stop/HUP messages. See Debian
+ ticket http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=463793
+- bugfix: hostnames with dashes in them were incorrectly treated as
+ malformed, thus causing them to be treated as TAG (this was a regression
+ introduced from the "rfc3164 strict" change in 4.5.0). Testbench has been
+ updated to include a sample message with a hostname containing a dash.
+- bugfix: strings improperly reused, resulting in some message properties
+ be populated with strings from previous messages. This was caused by
+ an improper predicate check.
+- added new config directive $omfileForceChown [import from 4.7.0]
+---------------------------------------------------------------------------
+Version 5.1.4 [DEVEL] (rgerhards), 2009-08-20
+- legacy syslog parser changed so that it now accepts date stamps in
+ wrong case. Some devices seem to create them and I do not see any harm
+ in supporting that.
+- added $InputTCPMaxListeners directive - permits to specify how many
+ TCP servers shall be possible (default is 20).
+- bugfix: memory leak with some input modules. Those inputs that
+ use parseAndSubmitMsg() leak two small memory blocks with every message.
+ Typically, those process only relatively few messages, so the issue
+ does most probably not have any effect in practice.
+- bugfix: if tcp listen port could not be created, no error message was
+ emitted
+- bugfix: discard action did not work (did not discard messages)
+- bugfix: discard action caused segfault
+- bugfix: potential segfault in output file writer (omfile)
+ In async write mode, we use modular arithmetic to index the output
+ buffer array. However, the counter variables accidentally were signed,
+ thus resulting in negative indices after integer overflow. That in turn
+ could lead to segfaults, but was depending on the memory layout of
+ the instance in question (which in turn depended on a number of
+ variables, like compile settings but also configuration). The counters
+ are now unsigned (as they always should have been) and so the dangling
+ mis-indexing does no longer happen. This bug potentially affected all
+ installations, even if only some may actually have seen a segfault.
+---------------------------------------------------------------------------
+Version 5.1.3 [DEVEL] (rgerhards), 2009-07-28
+- architecture change: queue now always has at least one worker thread
+ if not running in direct mode. Previous versions could run without
+ any active workers. This simplifies the code at a very small expense.
+ See v5 compatibility note document for more in-depth discussion.
+- enhance: UDP spoofing supported via new output module omudpspoof
+ See the omudpspoof documentation for details and samples
+- bugfix: message could be truncated after TAG, often when forwarding
+ This was a result of an internal processing error if maximum field
+ sizes had been specified in the property replacer.
+- bugfix: minor static memory leak while reading configuration
+ did NOT leak based on message volume
+- internal: added ability to terminate input modules not via pthread_cancel
+ but an alternate approach via pthread_kill. This is somewhat safer as we
+ do not need to think about the cancel-safeness of all libraries we use.
+ However, not all inputs can easily supported, so this now is a feature
+ that can be requested by the input module (the most important ones
+ request it).
+---------------------------------------------------------------------------
+Version 5.1.2 [DEVEL] (rgerhards), 2009-07-08
+- bugfix: properties inputname, fromhost, fromhost-ip, msg were lost when
+ working with disk queues
+- some performance enhancements
+- bugfix: abort condition when RecvFrom was not set and message reduction
+ was on. Happened e.g. with imuxsock.
+- added $klogConsoleLogLevel directive which permits to set a new
+ console log level while rsyslog is active
+- some internal code cleanup
+---------------------------------------------------------------------------
+Version 5.1.1 [DEVEL] (rgerhards), 2009-07-03
+- bugfix: huge memory leak in queue engine (made rsyslogd unusable in
+ production). Occurred if at least one queue was in direct mode
+ (the default for action queues)
+- imported many performance optimizations from v4-devel (4.5.0)
+- bugfix: subtle (and usually irrelevant) issue in timeout processing
+ timeout could be one second too early if nanoseconds wrapped
+- set a more sensible timeout for shutdown, now 1.5 seconds to complete
+ processing (this also removes those cases where the shutdown message
+ was not written because the termination happened before it)
+---------------------------------------------------------------------------
+Version 5.1.0 [DEVEL] (rgerhards), 2009-05-29
+
+*********************************** NOTE **********************************
+The v5 versions of rsyslog feature a greatly redesigned queue engine. The
+major theme for the v5 release is twofold:
+
+a) greatly improved performance
+b) enable audit-grade processing
+
+Here, audit-grade processing means that rsyslog, if used together with
+audit-grade transports and configured correctly, will never lose messages
+that already have been acknowledged, not even in fatal failure cases like
+sudden loss of power.
+
+Note that large parts of rsyslog's important core components have been
+restructured to support these design goals. As such, early versions of
+the engine will probably be less stable than the v3/v4 engine.
+
+Also note that the initial versions do not cover all and everything. As
+usual, the code will evolve toward the final goal as version numbers
+increase.
+*********************************** NOTE **********************************
+
+- redesigned queue engine so that it supports ultra-reliable operations
+ This resulted in a rewrite of large parts. The new capability can be
+ used to build audit-grade systems on the basis of rsyslog.
+- added $MainMsgQueueDequeueBatchSize and $ActionQueueDequeueBatchSize
+ configuration directives
+- implemented a new transactional output module interface which provides
+ superior performance (for databases potentially far superior performance)
+- increased ompgsql performance by adapting to new transactional
+ output module interface
+---------------------------------------------------------------------------
+Version 4.8.1 [v4-stable], 2011-09-??
+- increased max config file line size to 64k
+ We now also emit an error message if even 64k is not enough (not
+ doing so previously may rightfully be considered as a bug)
+- bugfix: omprog made rsyslog abort on startup if not binary to
+ execute was configured
+- bugfix: $ActionExecOnlyOnce interval did not work properly
+ Thanks to Tomas Heinrich for the patch
+- bugfix: potential abort if ultra-large file io buffers are used and
+ dynafile cache exhausts address space (primarily a problem on 32 bit
+ platforms)
+- bugfix: potential abort after reading invalid X.509 certificate
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=290
+ Thanks to Tomas Heinrich for the patch.
+- bugfix: potential fatal abort in omgssapi
+ Thanks to Tomas Heinrich for the patch.
+- added doc for omprog
+- FQDN hostname for multihomed host was not always set to the correct name
+ if multiple aliases existed. Thanks to Tomas Heinreich for the patch.
+- re-licensed larger parts of the codebase under the Apache license 2.0
+---------------------------------------------------------------------------
+Version 4.8.0 [v4-stable] (rgerhards), 2011-09-07
+***************************************************************************
+* This is a new stable v4 version. It contains all fixes and enhancements *
+* made during the 4.7.x phase as well as those listed below. *
+* Note: major new development to v4 is concluded and will only be done *
+* for custom projects. *
+***************************************************************************
+There are no changes compared to 4.7.5, just a re-release with the new
+version number as new v4-stable. The most important new feature is Solaris
+support.
+---------------------------------------------------------------------------
+Version 4.7.5 [v4-beta], 2011-09-01
+- bugfix/security: off-by-two bug in legacy syslog parser, CVE-2011-3200
+- bugfix: potential misaddressing in property replacer
+- bugfix: The NUL-Byte for the syslogtag was not copied in MsgDup (msg.c)
+---------------------------------------------------------------------------
+Version 4.7.4 [v4-beta] (rgerhards), 2011-07-11
+- added support for the ":omusrmsg:" syntax in configuring user messages
+- added support for the ":omfile:" syntax in configuring user messages
+- added $LocalHostName config directive
+- bugfix: PRI was invalid on Solaris for message from local log socket
+Version 4.7.3 [v4-devel] (rgerhards), 2010-11-25
+- added omuxsock, which permits to write message to local Unix sockets
+ this is the counterpart to imuxsock, enabling fast local forwarding
+- added imptcp, a simplified, Linux-specific and potentially fast
+ syslog plain tcp input plugin (NOT supporting TLS!)
+- bugfix: a couple of problems that imfile had on some platforms, namely
+ Ubuntu (not their fault, but occurred there)
+- bugfix: imfile utilizes 32 bit to track offset. Most importantly,
+ this problem can not experienced on Fedora 64 bit OS (which has
+ 64 bit long's!)
+- added the $InputFilePersistStateInterval config directive to imfile
+- changed imfile so that the state file is never deleted (makes imfile
+ more robust in regard to fatal failures)
+---------------------------------------------------------------------------
+Version 4.7.2 [v4-devel] (rgerhards), 2010-05-03
+- bugfix: problems with atomic operations emulation
+ replaced atomic operation emulation with new code. The previous code
+ seemed to have some issue and also limited concurrency severely. The
+ whole atomic operation emulation has been rewritten.
+- added new $Sleep directive to hold processing for a couple of seconds
+ during startup
+- bugfix: programname filter in ! configuration can not be reset
+ Thanks to Kiss Gabor for the patch.
+---------------------------------------------------------------------------
+Version 4.7.1 [v4-devel] (rgerhards), 2010-04-22
+- Solaris support much improved -- was not truly usable in 4.7.0
+ Solaris is no longer supported in imklog, but rather there is a new
+ plugin imsolaris, which is used to pull local log sources on a Solaris
+ machine.
+- testbench improvement: Java is no longer needed for testing tool creation
+---------------------------------------------------------------------------
+Version 4.7.0 [v4-devel] (rgerhards), 2010-04-14
+- new: support for Solaris added (but not yet the Solaris door API)
+- added function getenv() to RainerScript
+- added new config option $InputUnixListenSocketCreatePath
+ to permit the auto-creation of paths to additional log sockets. This
+ turns out to be useful if they reside on temporary file systems and
+ rsyslogd starts up before the daemons that create these sockets
+ (rsyslogd always creates the socket itself if it does not exist).
+- added $LogRSyslogStatusMessages configuration directive
+ permitting to turn off rsyslog start/stop/HUP messages. See Debian
+ ticket http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=463793
+- added new config directive $omfileForceChown to (try to) fix some broken
+ system configs.
+ See ticket for details: http://bugzilla.adiscon.com/show_bug.cgi?id=150
+- added $EscapeControlCharacterTab config directive
+ Thanks to Jonathan Bond-Caron for the patch.
+- added option to use unlimited-size select() calls
+ Thanks to varmojfekoj for the patch
+- debugondemand mode caused backgrounding to fail - close to a bug, but I'd
+ consider the ability to background in this mode a new feature...
+- bugfix (kind of): check if TCP connection is still alive if using TLS
+ Thanks to Jonathan Bond-Caron for the patch.
+- imported changes from 4.5.7 and below
+- bugfix: potential segfault when -p command line option was used
+ Thanks for varmojfekoj for pointing me at this bug.
+- imported changes from 4.5.6 and below
+---------------------------------------------------------------------------
+Version 4.6.8 [v4-stable] (rgerhards), 2011-09-01
+- bugfix/security: off-by-two bug in legacy syslog parser, CVE-2011-3200
+- bugfix: potential misaddressing in property replacer
+- bugfix: memcpy overflow can occur in allowed sender checking
+ if a name is resolved to IPv4-mapped-on-IPv6 address
+ Found by Ismail Dönmez at suse
+- bugfix: The NUL-Byte for the syslogtag was not copied in MsgDup (msg.c)
+---------------------------------------------------------------------------
+Version 4.6.7 [v4-stable] (rgerhards), 2011-07-11
+- added support for the ":omusrmsg:" syntax in configuring user messages
+- added support for the ":omfile:" syntax for actions
+---------------------------------------------------------------------------
+Version 4.6.6 [v4-stable] (rgerhards), 2011-06-24
+- bugfix: memory leak in imtcp & subsystems under some circumstances
+ This leak is tied to error conditions which lead to incorrect cleanup
+ of some data structures. [backport from v6, limited testing under v4]
+- bugfix: invalid processing in QUEUE_FULL condition
+ If the the multi-submit interface was used and a QUEUE_FULL condition
+ occurred, the failed message was properly destructed. However, the
+ rest of the input batch, if it existed, was not processed. So this
+ lead to potential loss of messages and a memory leak. The potential
+ loss of messages was IMHO minor, because they would have been dropped
+ in most cases due to the queue remaining full, but very few lucky ones
+ from the batch may have made it. Anyhow, this has now been changed so
+ that the rest of the batch is properly tried to be enqueued and, if
+ not possible, destructed.
+- bugfix: invalid storage type for config variables
+- bugfix: stream driver mode was not correctly set on tcp output on big
+ endian systems.
+ thanks varmojfekoj for the patch
+- bugfix: IPv6-address could not be specified in omrelp
+ this was due to improper parsing of ":"
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=250
+- bugfix: memory and file descriptor leak in stream processing
+ Leaks could occur under some circumstances if the file stream handler
+ errored out during the open call. Among others, this could cause very
+ big memory leaks if there were a problem with unreadable disk queue
+ files. In regard to the memory leak, this
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=256
+- bugfix: imfile potentially duplicates lines
+ This can happen when 0 bytes are read from the input file, and some
+ writer appends data to the file BEFORE we check if a rollover happens.
+ The check for rollover uses the inode and size as a criterion. So far,
+ we checked for equality of sizes, which is not given in this scenario,
+ but that does not indicate a rollover. From the source code comments:
+ Note that when we check the size, we MUST NOT check for equality.
+ The reason is that the file may have been written right after we
+ did try to read (so the file size has increased). That is NOT in
+ indicator of a rollover (this is an actual bug scenario we
+ experienced). So we need to check if the new size is smaller than
+ what we already have seen!
+ Also, under some circumstances an invalid truncation was detected. This
+ code has now been removed, a file change (and thus resent) is only
+ detected if the inode number changes.
+- bugfix: a couple of problems that imfile had on some platforms, namely
+ Ubuntu (not their fault, but occurred there)
+- bugfix: imfile utilizes 32 bit to track offset. Most importantly,
+ this problem can not experienced on Fedora 64 bit OS (which has
+ 64 bit long's!)
+- bugfix: abort if imfile reads file line of more than 64KiB
+ Thanks to Peter Eisentraut for reporting and analyzing this problem.
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=221
+- bugfix: omlibdbi did not use password from rsyslog.con
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=203
+- bugfix: TCP connection invalidly aborted when messages needed to be
+ discarded (due to QUEUE_FULL or similar problem)
+- bugfix: a slightly more informative error message when a TCP
+ connections is aborted
+- bugfix: timestamp was incorrectly calculated for timezones with minute
+ offset
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=271
+- some improvements thanks to clang's static code analyzer
+ o overall cleanup (mostly unnecessary writes and otherwise unused stuff)
+ o bugfix: fixed a very remote problem in msg.c which could occur when
+ running under extremely low memory conditions
+---------------------------------------------------------------------------
+Version 4.6.5 [v4-stable] (rgerhards), 2010-11-24
+- bugfix(important): problem in TLS handling could cause rsyslog to loop
+ in a tight loop, effectively disabling functionality and bearing the
+ risk of unresponsiveness of the whole system.
+ Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
+---------------------------------------------------------------------------
+Version 4.6.4 [v4-stable] (rgerhards), 2010-08-05
+- bugfix: zero-sized (empty) messages were processed by imtcp
+ they are now dropped as they always should have been
+- bugfix: programname filter in ! configuration can not be reset
+ Thanks to Kiss Gabor for the patch.
+---------------------------------------------------------------------------
+Version 4.6.3 [v4-stable] (rgerhards), 2010-07-07
+- improved testbench
+ - added test with truly random data received via syslog to test
+ robustness
+ - added new configure option that permits to disable and enable an
+ extended testbench
+- bugfix: segfault on HUP when "HUPIsRestart" was set to "on"
+ thanks varmojfekoj for the patch
+- bugfix: default for $OMFileFlushOnTXEnd was wrong ("off").
+ This, in default mode, caused buffered writing to be used, what
+ means that it looked like no output were written or partial
+ lines. Thanks to Michael Biebl for pointing out this bug.
+- bugfix: testbench failed when not executed in UTC+1 timezone
+ accidentally, the time zone information was kept inside some
+ to-be-checked-for responses
+- temporary bugfix replaced by permanent one for
+ message-induced off-by-one error (potential segfault) (see 4.6.2)
+ The analysis has been completed and a better fix been crafted and
+ integrated.
+- bugfix: the T/P/E config size specifiers did not work properly under
+ all 32-bit platforms
+- bugfix: local unix system log socket was deleted even when it was
+ not configured
+- some doc fixes; incorrect config samples could cause confusion
+ thanks to Anthony Edwards for pointing the problems out
+---------------------------------------------------------------------------
+Version 4.6.2 [v4-stable] (rgerhards), 2010-03-26
+- new feature: "." action type added to support writing files to relative
+ paths (this is primarily meant as a debug aid)
+- added replacements for atomic instructions on systems that do not
+ support them. [backport of Stefen Sledz' patch for v5)
+- new feature: $OMFileAsyncWriting directive added
+ it permits to specify if asynchronous writing should be done or not
+- bugfix(temporary): message-induced off-by-one error (potential segfault)
+ Some types of malformed messages could trigger an off-by-one error
+ (for example, \0 or \n as the last character, and generally control
+ character escaption is questionable). This is due to not strictly
+ following a the \0 or string counted string paradigm (during the last
+ optimization on the cstring class). As a temporary fix, we have
+ introduced a proper recalculation of the size. However, a final
+ patch is expected in the future. See bug tracker for further details
+ and when the final patch will be available:
+ http://bugzilla.adiscon.com/show_bug.cgi?id=184
+ Note that the current patch is considered sufficient to solve the
+ situation, but it requires a bit more runtime than desirable.
+- bugfix: potential segfault in dynafile cache
+ This bug was triggered by an open failure. The the cache was full and
+ a new entry needed to be placed inside it, a victim for eviction was
+ selected. That victim was freed, then the open of the new file tried. If
+ the open failed, the victim entry was still freed, and the function
+ exited. However, on next invocation and cache search, the victim entry
+ was used as if it were populated, most probably resulting in a segfault.
+- bugfix: race condition during directory creation
+ If multiple files try to create a directory at (almost) the same time,
+ some of them may fail. This is a data race and also exists with other
+ processes that may create the same directory. We do now check for this
+ condition and gracefully handle it.
+- bugfix: potential re-use of free()ed file stream object in omfile
+ when dynaCache is enabled, the cache is full, a new entry needs to
+ be allocated, thus the LRU discarded, then a new entry is opend and that
+ fails. In that case, it looks like the discarded stream may be reused
+ improperly (based on code analysis, test case and confirmation pending)
+- added new property replacer option "date-rfc3164-buggyday" primarily
+ to ease migration from syslog-ng. See property replacer doc for
+ details. [backport from 5.5.3 because urgently needed by some]
+- improved testbench
+- bugfix: invalid buffer write in (file) stream class
+ currently being accessed buffer could be overwritten with new data.
+ While this probably did not cause access violations, it could case loss
+ and/or duplication of some data (definitely a race with no deterministic
+ outcome)
+- bugfix: potential hang condition during filestream close
+ predicate was not properly checked when waiting for the background file
+ writer
+- bugfix: improper synchronization when "$OMFileFlushOnTXEnd on" was used
+ Internal data structures were not properly protected due to missing
+ mutex calls.
+- bugfix: potential data loss during file stream shutdown
+- bugfix: potential problems during file stream shutdown
+ The shutdown/close sequence was not clean, what potentially (but
+ unlikely) could lead to some issues. We have not been able to describe
+ any fatal cases, but there was some bug potential. Sequence has now
+ been straighted out.
+- bugfix: potential problem (loop, abort) when file write error occurred
+ When a write error occurred in stream.c, variable iWritten had the error
+ code but this was handled as if it were the actual number of bytes
+ written. That was used in pointer arithmetic later on, and thus could
+ lead to all sorts of problems. However, this could only happen if the
+ error was EINTR or the file in question was a tty. All other cases were
+ handled properly. Now, iWritten is reset to zero in such cases, resulting
+ in proper retries.
+- bugfix: $omfileFlushOnTXEnd was turned on when set to off and vice
+ versa due to an invalid check
+- bugfix: recent patch to fix small memory leak could cause invalid free.
+ This could only happen during config file parsing.
+- bugfix(minor): handling of extremely large strings in dbgprintf() fixed
+ Previously, it could lead to garbage output and, in extreme cases, also
+ to segfaults. Note: this was a problem only when debug output was
+ actually enabled, so it caused no problem in production use.
+- bugfix(minor): BSD_SO_COMPAT query function had some global vars not
+ properly initialized. However, in practice the loader initializes them
+ with zero, the desired value, so there were no actual issue in almost
+ all cases.
+---------------------------------------------------------------------------
+Version 4.6.1 [v4-stable] (rgerhards), 2010-03-04
+- re-enabled old pipe output (using new module ompipe, built-in) after
+ some problems with pipes (and especially in regard to xconsole) were
+ discovered. Thanks to Michael Biebl for reporting the issues.
+- bugfix: potential problems with large file support could cause segfault
+ ... and other weird problems. This seemed to affect 32bit-platforms
+ only, but I can not totally outrule there were issues on other
+ platforms as well. The previous code could cause system data types
+ to be defined inconsistently, and that could lead to various
+ troubles. Special thanks go to the Mandriva team for identifying
+ an initial problem, help discussing it and ultimately a fix they
+ contributed.
+- bugfix: fixed problem that caused compilation on FreeBSD 9.0 to fail.
+ bugtracker: http://bugzilla.adiscon.com/show_bug.cgi?id=181
+ Thanks to Christiano for reporting.
+- bugfix: potential segfault in omfile when a dynafile open failed
+ In that case, a partial cache entry was written, and some internal
+ pointers (iCurrElt) not correctly updated. In the next iteration, that
+ could lead to a segfault, especially if iCurrElt then points to the
+ then-partial record. Not very likely, but could happen in practice.
+- bugfix (theoretical): potential segfault in omfile under low memory
+ condition. This is only a theoretical bug, because it would only
+ happen when strdup() fails to allocate memory - which is highly
+ unlikely and will probably lead to all other sorts of errors.
+- bugfix: comment char ('#') in literal terminated script parsing
+ and thus could not be used.
+ but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
+ [merged in from v3.22.2]
+---------------------------------------------------------------------------
+Version 4.6.0 [v4-stable] (rgerhards), 2010-02-24
+***************************************************************************
+* This is a new stable v4 version. It contains all fixes and enhancements *
+* made during the 4.5.x phase as well as those listed below. *
+* Note: this version is scheduled to conclude the v4 development process. *
+* Do not expect any more new developments in v4. The focus is now *
+* on v5 (what also means we have a single devel branch again). *
+* ("development" means new feature development, bug fixes are of *
+* course provided for v4-stable) *
+***************************************************************************
+- improved testbench to contain samples for totally malformed messages
+ which miss parts of the message content
+- bugfix: some malformed messages could lead to a missing LF inside files
+ or some other missing parts of the template content.
+- bugfix: if a message ended immediately with a hostname, the hostname
+ was mistakenly interpreted as TAG, and localhost be used as hostname
+- bugfix: message without MSG part could case a segfault
+ [backported from v5 commit 98d1ed504ec001728955a5bcd7916f64cd85f39f]
+ This actually was a "recent" regression, but I did not realize that it
+ was introduced by the performance optimization in v4-devel. Shame on
+ me for having two devel versions at the same time...
+---------------------------------------------------------------------------
+Version 4.5.8 [v4-beta] (rgerhards), 2010-02-10
+- enhanced doc for using PostgreSQL
+ Thanks to Marc Schiffbauer for the new/updated doc
+- bugfix: property replacer returned invalid parameters under some (unusual)
+ conditions. In extreme cases, this could lead to garbled logs and/or
+ a system failure.
+- bugfix: invalid length returned (often) when using regular expressions
+ inside the property replacer
+- bugfix: submatch regex in property replacer did not honor "return 0 on
+ no match" config case
+- bugfix: imuxsock incorrectly stated inputname "imudp"
+ Thanks to Ryan Lynch for reporting this.
+- (slightly) enhanced support for FreeBSD by setting _PATH_MODDIR to
+ the correct value on FreeBSD.
+ Thanks to Cristiano for the patch.
+- bugfix: -d did not enable display of debug messages
+ regression from introduction of "debug on demand" mode
+ Thanks to Michael Biebl for reporting this bug
+- bugfix: blanks inside file names did not terminate file name parsing.
+ This could result in the whole rest of a line (including comments)
+ to be treated as file name in "write to file" actions.
+ Thanks to Jack for reporting this issue.
+- bugfix: rsyslog hang when writing to a named pipe which nobody was
+ reading. Thanks to Michael Biebl for reporting this bug.
+ Bugzilla entry: http://bugzilla.adiscon.com/show_bug.cgi?id=169
+- bugfix: potential segfaults during queue shutdown
+ (bugs require certain non-standard settings to appear)
+ Thanks to varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 4.5.7 [v4-beta] (rgerhards), 2009-11-18
+- added a so-called "On Demand Debug" mode, in which debug output can
+ be generated only after the process has started, but not right from
+ the beginning. This is assumed to be useful for hard-to-find bugs.
+ Also improved the doc on the debug system.
+- bugfix (kind of): check if TCP connection is still alive if using TLS
+ Thanks to Jonathan Bond-Caron for the patch.
+- bugfix: hostname accidentally set to IP address for some message sources,
+ for example imudp. Thanks to Anton for reporting this bug.
+- bugfix [imported from 4.4.3]: $ActionExecOnlyOnceEveryInterval did
+ not work.
+---------------------------------------------------------------------------
+Version 4.5.6 [v4-beta] (rgerhards), 2009-11-05
+- bugfix: named pipes did no longer work (they always got an open error)
+ this was a regression from the omfile rewrite in 4.5.0
+- bugfix(minor): diag function returned wrong queue member count
+ for the main queue if an active DA queue existed. This had no relevance
+ to real deployments (assuming they are not running the debug/diagnostic
+ module...), but sometimes caused grief and false alerts in the
+ testbench.
+- included some important fixes from v4-stable:
+ * bugfix: invalid handling of zero-sized messages
+ * bugfix: zero-sized UDP messages are no longer processed
+ * bugfix: random data could be appended to message
+ * bugfix: reverse lookup reduction logic in imudp do DNS queries too often
+- bugfix(testbench): testcase did not properly wait for rsyslog shutdown
+ thus some unpredictable behavior and a false negative test result
+ could occur. [BACKPORTED from v5]
+- bugfix(testbench): sequence check was not always performed correctly,
+ that could result in tests reporting success when they actually failed
+---------------------------------------------------------------------------
+Version 4.5.5 [v4-beta] (rgerhards), 2009-10-21
+- added $InputTCPServerNotifyOnConnectionClose config directive
+ see doc for details
+- bugfix: debug string larger than 1K were improperly displayed. Max size
+ is now 32K
+- bugfix: invalid storage class selected for some size config parameters.
+ This resulted in wrong values. The most prominent victim was the
+ directory creation mode, which was set to zero in some cases. For
+ details, see related blog post:
+ http://blog.gerhards.net/2009/10/another-note-on-hard-to-find-bugs.html
+---------------------------------------------------------------------------
+Version 4.5.4 [v4-beta] (rgerhards), 2009-09-29
+- bugfix: potential segfault in stream writer on destruction
+ Most severely affected omfile. The problem was that some buffers were
+ freed before the asynchronous writer thread was shut down. So the
+ writer thread accessed invalid data, which may even already be
+ overwritten. Symptoms (with omfile) were segfaults, garbled data
+ and files with random names placed around the file system (most
+ prominently into the root directory). Special thanks to Aaron for
+ helping to track this down.
+- bugfix: potential race in object loader (obj.c) during use/release
+ of object interface
+- bugfixes: potential problems in out file zip writer. Problems could
+ lead to abort and/or memory leak. The module is now hardened in a very
+ conservative way, which is sub-optimal from a performance point of view.
+ This should be improved if it has proven reliable in practice.
+---------------------------------------------------------------------------
+Version 4.5.3 [v4-beta] (rgerhards), 2009-09-17
+- bugfix: repeated messages were incorrectly processed
+ this could lead to loss of the repeated message content. As a side-
+ effect, it could probably also be possible that some segfault occurs
+ (quite unlikely). The root cause was that some counters introduced
+ during the malloc optimizations were not properly duplicated in
+ MsgDup(). Note that repeated message processing is not enabled
+ by default.
+- bugfix: message sanitation had some issues:
+ - control character DEL was not properly escaped
+ - NUL and LF characters were not properly stripped if no control
+ character replacement was to be done
+ - NUL characters in the message body were silently dropped (this was
+ a regression introduced by some of the recent optimizations)
+- bugfix: strings improperly reused, resulting in some message properties
+ be populated with strings from previous messages. This was caused by
+ an improper predicate check. [backported from v5]
+- fixed some minor portability issues
+- bugfix: reverse lookup reduction logic in imudp do DNS queries too often
+ [imported from 4.4.2]
+---------------------------------------------------------------------------
+Version 4.5.2 [v4-beta] (rgerhards), 2009-08-21
+- legacy syslog parser changed so that it now accepts date stamps in
+ wrong case. Some devices seem to create them and I do not see any harm
+ in supporting that.
+- added $InputTCPMaxListeners directive - permits to specify how many
+ TCP servers shall be possible (default is 20).
+- bugfix: memory leak with some input modules. Those inputs that
+ use parseAndSubmitMsg() leak two small memory blocks with every message.
+ Typically, those process only relatively few messages, so the issue
+ does most probably not have any effect in practice.
+- bugfix: if tcp listen port could not be created, no error message was
+ emitted
+- bugfix: potential segfault in output file writer (omfile)
+ In async write mode, we use modular arithmetic to index the output
+ buffer array. However, the counter variables accidentally were signed,
+ thus resulting in negative indices after integer overflow. That in turn
+ could lead to segfaults, but was depending on the memory layout of
+ the instance in question (which in turn depended on a number of
+ variables, like compile settings but also configuration). The counters
+ are now unsigned (as they always should have been) and so the dangling
+ mis-indexing does no longer happen. This bug potentially affected all
+ installations, even if only some may actually have seen a segfault.
+- bugfix: hostnames with dashes in them were incorrectly treated as
+ malformed, thus causing them to be treated as TAG (this was a regression
+ introduced from the "rfc3164 strict" change in 4.5.0).
+---------------------------------------------------------------------------
+Version 4.5.1 [DEVEL] (rgerhards), 2009-07-15
+- CONFIG CHANGE: $HUPisRestart default is now "off". We are doing this
+ to support removal of restart-type HUP in v5.
+- bugfix: fromhost-ip was sometimes truncated
+- bugfix: potential segfault when zip-compressed syslog records were
+ received (double free)
+- bugfix: properties inputname, fromhost, fromhost-ip, msg were lost when
+ working with disk queues
+- performance enhancement: much faster, up to twice as fast (depending
+ on configuration)
+- bugfix: abort condition when RecvFrom was not set and message reduction
+ was on. Happened e.g. with imuxsock.
+- added $klogConsoleLogLevel directive which permits to set a new
+ console log level while rsyslog is active
+- bugfix: message could be truncated after TAG, often when forwarding
+ This was a result of an internal processing error if maximum field
+ sizes had been specified in the property replacer.
+- added ability for the TCP output action to "rebind" its send socket after
+ sending n messages (actually, it re-opens the connection, the name is
+ used because this is a concept very similar to $ActionUDPRebindInterval).
+ New config directive $ActionSendTCPRebindInterval added for the purpose.
+ By default, rebinding is disabled. This is considered useful for load
+ balancers.
+- testbench improvements
+---------------------------------------------------------------------------
+Version 4.5.0 [DEVEL] (rgerhards), 2009-07-02
+- activation order of inputs changed, they are now activated only after
+ privileges are dropped. Thanks to Michael Terry for the patch.
+- greatly improved performance
+- greatly reduced memory requirements of msg object
+ to around half of the previous demand. This means that more messages can
+ be stored in core! Due to fewer cache misses, this also means some
+ performance improvement.
+- improved config error messages: now contain a copy of the config line
+ that (most likely) caused the error
+- reduced max value for $DynaFileCacheSize to 1,000 (the former maximum
+ of 10,000 really made no sense, even 1,000 is very high, but we like
+ to keep the user in control ;)).
+- added capability to fsync() queue disk files for enhanced reliability
+ (also add's speed, because you do no longer need to run the whole file
+ system in sync mode)
+- more strict parsing of the hostname in rfc3164 mode, hopefully
+ removes false positives (but may cause some trouble with hostname
+ parsing). For details, see this bug tracker:
+ http://bugzilla.adiscon.com/show_bug.cgi?id=126
+- omfile rewrite to natively support zip files (includes large extension
+ of the stream class)
+- added configuration commands (see doc for explanations)
+ * $OMFileZipLevel
+ * $OMFileIOBufferSize
+ * $OMFileFlushOnTXEnd
+ * $MainMsgQueueSyncQueueFiles
+ * $ActionQueueSyncQueueFiles
+- done some memory accesses explicitly atomic
+- bugfix: subtle (and usually irrelevant) issue in timeout processing
+ timeout could be one second too early if nanoseconds wrapped
+- set a more sensible timeout for shutdown, now 1.5 seconds to complete
+ processing (this also removes those cases where the shutdown message
+ was not written because the termination happened before it)
+- internal bugfix: object pointer was only reset to NULL when an object
+ was actually destructed. This most likely had no effect to existing code,
+ but it may also have caused trouble in remote cases. Similarly, the fix
+ may also cause trouble...
+- bugfix: missing initialization during timestamp creation
+ This could lead to timestamps written in the wrong format, but not to
+ an abort
+---------------------------------------------------------------------------
+Version 4.4.3 [v4-stable] (rgerhards), 2009-10-??
+- bugfix: several smaller bugs resolved after flexelint review
+ Thanks to varmojfekoj for the patch.
+- bugfix: $ActionExecOnlyOnceEveryInterval did not work.
+ This was a regression from the time() optimizations done in v4.
+ Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=143
+ Thanks to Klaus Tachtler for reporting this bug.
+- bugfix: potential segfault on queue shutdown
+ Thanks to varmojfekoj for the patch.
+- bugfix: potential hang condition on queue shutdown
+ [imported from v3-stable]
+- bugfix: segfault on startup when -q or -Q option was given
+ [imported from v3-stable]
+---------------------------------------------------------------------------
+Version 4.4.2 [v4-stable] (rgerhards), 2009-10-09
+- bugfix: invalid handling of zero-sized messages, could lead to mis-
+ addressing and potential memory corruption/segfault
+- bugfix: zero-sized UDP messages are no longer processed
+ until now, they were forwarded to processing, but this makes no sense
+ Also, it looks like the system seems to provide a zero return code
+ on a UDP recvfrom() from time to time for some internal reasons. These
+ "receives" are now silently ignored.
+- bugfix: random data could be appended to message, possibly causing
+ segfaults
+- bugfix: reverse lookup reduction logic in imudp do DNS queries too often
+ A comparison was done between the current and the former source address.
+ However, this was done on the full sockaddr_storage structure and not
+ on the host address only. This has now been changed for IPv4 and IPv6.
+ The end result of this bug could be a higher UDP message loss rate than
+ necessary (note that UDP message loss can not totally be avoided due
+ to the UDP spec)
+---------------------------------------------------------------------------
+Version 4.4.1 [v4-stable] (rgerhards), 2009-09-02
+- features requiring Java are automatically disabled if Java is not
+ present (thanks to Michael Biebl for his help!)
+- bugfix: invalid double-quoted PRI, among others in outgoing messages
+ This causes grief with all receivers.
+ Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=147
+- bugfix: Java testing tools were required, even if testbench was disabled
+ This resulted in build errors if no Java was present on the build system,
+ even though none of the selected option actually required Java.
+ (I forgot to backport a similar fix to newer releases).
+- bugfix (backport): omfwd segfault
+ Note that the original (higher version) patch states this happens only
+ when debugging mode is turned on. That statement is wrong: if debug
+ mode is turned off, the message is not being emitted, but the division
+ by zero in the actual parameters still happens.
+---------------------------------------------------------------------------
+Version 4.4.0 [v4-stable] (rgerhards), 2009-08-21
+- bugfix: stderr/stdout were not closed to be able to emit error messages,
+ but this caused ssh sessions to hang. Now we close them after the
+ initial initialization. See forum thread:
+ http://kb.monitorware.com/controlling-terminal-issues-t9875.html
+- bugfix: sending syslog messages with zip compression did not work
+---------------------------------------------------------------------------
+Version 4.3.2 [v4-beta] (rgerhards), 2009-06-24
+- removed long-obsoleted property UxTradMsg
+- added a generic network stream server (in addition to rather specific
+ syslog tcp server)
+- added ability for the UDP output action to rebind its send socket after
+ sending n messages. New config directive $ActionSendUDPRebindInterval
+ added for the purpose. By default, rebinding is disabled. This is
+ considered useful for load balancers.
+- bugfix: imdiag/imtcp had a race condition
+- improved testbench (now much better code design and reuse)
+- added config switch --enable-testbench=no to turn off testbench
+---------------------------------------------------------------------------
+Version 4.3.1 [DEVEL] (rgerhards), 2009-05-25
+- added capability to run multiple tcp listeners (on different ports)
+- performance enhancement: imtcp calls parser no longer on input thread
+ but rather inside on of the potentially many main msg queue worker
+ threads (an enhancement scheduled for all input plugins where this is
+ possible)
+- added $GenerateConfigGraph configuration command which can be used
+ to generate nice-looking (and very informative) rsyslog configuration
+ graphs.
+- added $ActionName configuration directive (currently only used for
+ graph generation, but may find other uses)
+- improved doc
+ * added (hopefully) easier to grasp queue explanation
+- improved testbench
+ * added tests for queue disk-only mode (checks disk queue logic)
+- bugfix: light and full delay watermarks had invalid values, badly
+ affecting performance for delayable inputs
+- build system improvements - thanks to Michael Biebl
+- added new testing module imdiag, which enables to talk to the
+ rsyslog core at runtime. The current implementation is only a
+ beginning, but can be expanded over time
+---------------------------------------------------------------------------
+Version 4.3.0 [DEVEL] (rgerhards), 2009-04-17
+- new feature: new output plugin omprog, which permits to start program
+ and feed it (via its stdin) with syslog messages. If the program
+ terminates, it is restarted.
+- improved internal handling of RainerScript functions, building the
+ necessary plumbing to support more functions with decent runtime
+ performance. This is also necessary towards the long-term goal
+ of loadable library modules.
+- added new RainerScript function "tolower"
+- improved testbench
+ * added tests for tcp-based reception
+ * added tcp-load test (1000 connections, 20,000 messages)
+- added $MaxOpenFiles configuration directive
+- bugfix: solved potential memory leak in msg processing, could manifest
+ itself in imtcp
+- bugfix: ompgsql did not detect problems in sql command execution
+ this could cause loss of messages. The handling was correct if the
+ connection broke, but not if there was a problem with statement
+ execution. The most probable case for such a case would be invalid
+ sql inside the template, and this is now much easier to diagnose.
+---------------------------------------------------------------------------
+Version 4.2.0 [v4-stable] (rgerhards), 2009-06-23
+- bugfix: light and full delay watermarks had invalid values, badly
+ affecting performance for delayable inputs
+- imported all patches from 3.22.1 as of today (see below)
+- bugfix: compile problems in im3195
+---------------------------------------------------------------------------
+Version 4.1.7 [BETA] (rgerhards), 2009-04-22
+- bugfix: $InputTCPMaxSessions config directive was accepted, but not
+ honored. This resulted in a fixed upper limit of 200 connections.
+- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
+ It has now been changed to 0700. For some background, please see
+ http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
+- bugfix: ompgsql did not detect problems in sql command execution
+ this could cause loss of messages. The handling was correct if the
+ connection broke, but not if there was a problem with statement
+ execution. The most probable case for such a case would be invalid
+ sql inside the template, and this is now much easier to diagnose.
+---------------------------------------------------------------------------
+Version 4.1.6 [DEVEL] (rgerhards), 2009-04-07
+- added new "csv" property replacer options to enable simple creation
+ of CSV-formatted outputs (format from RFC4180 is used)
+- implemented function support in RainerScript. That means the engine
+ parses and compile functions, as well as executes a few build-in
+ ones. Dynamic loading and registration of functions is not yet
+ supported - but we now have a good foundation to do that later on.
+- implemented the strlen() RainerScript function
+- added a template output module
+- added -T rsyslogd command line option, enables to specify a directory
+ where to chroot() into on startup. This is NOT a security feature but
+ introduced to support testing. Thus, -T does not make sure chroot()
+ is used in a secure way. (may be removed later)
+- added omstdout module for testing purposes. Spits out all messages to
+ stdout - no config option, no other features
+- added a parser testing suite (still needs to be extended, but a good
+ start)
+- modified $ModLoad statement so that for modules whom's name starts with
+ a dot, no path is prepended (this enables relative-paths and should
+ not break any valid current config)
+- fixed a bug that caused action retries not to work correctly
+ situation was only cleared by a restart
+- bugfix: closed dynafile was potentially never written until another
+ dynafile name was generated - potential loss of messages
+- improved omfile so that it properly suspends itself if there is an
+ i/o or file name generation error. This enables it to be used with
+ the full high availability features of rsyslog's engine
+- bugfix: fixed some segfaults on Solaris, where vsprintf() does not
+ check for NULL pointers
+- improved performance of regexp-based filters
+ Thanks to Arnaud Cornet for providing the idea and initial patch.
+- added a new way how output plugins may be passed parameters. This is
+ more efficient for some outputs. They new can receive fields not only
+ as a single string but rather in an array where each string is separated.
+- added (some) developer documentation for output plugin interface
+- bugfix: potential abort with DA queue after high watermark is reached
+ There exists a race condition that can lead to a segfault. Thanks
+ go to vbernetr, who performed the analysis and provided patch, which
+ I only tweaked a very little bit.
+- bugfix: imtcp did incorrectly parse hostname/tag
+ Thanks to Luis Fernando Muñoz Mejías for the patch.
+---------------------------------------------------------------------------
+Version 4.1.5 [DEVEL] (rgerhards), 2009-03-11
+- bugfix: parser did not correctly parse fields in UDP-received messages
+- added ERE support in filter conditions
+ new comparison operation "ereregex"
+- added new config directive $RepeatedMsgContainsOriginalMsg so that the
+ "last message repeated n times" messages, if generated, may
+ have an alternate format that contains the message that is being repeated
+---------------------------------------------------------------------------
+Version 4.1.4 [DEVEL] (rgerhards), 2009-01-29
+- bugfix: inconsistent use of mutex/atomic operations could cause segfault
+ details are too many, for full analysis see blog post at:
+ http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
+- bugfix: uninitialized mutex was used in msg.c:getPRI
+ This was subtle, because getPRI is called as part of the debugging code
+ (always executed) in syslogd.c:logmsg.
+- bugfix: $PreserveFQDN was not properly handled for locally emitted
+ messages
+---------------------------------------------------------------------------
+Version 4.1.3 [DEVEL] (rgerhards), 2008-12-17
+- added $InputTCPServerAddtlFrameDelimiter config directive, which
+ enables to specify an additional, non-standard message delimiter
+ for processing plain tcp syslog. This is primarily a fix for the invalid
+ framing used in Juniper's NetScreen products. Credit to forum user
+ Arv for suggesting this solution.
+- added $InputTCPServerInputName property, which enables a name to be
+ specified that will be available during message processing in the
+ inputname property. This is considered useful for logic that treats
+ messages differently depending on which input received them.
+- added $PreserveFQDN config file directive
+ Enables to use FQDNs in sender names where the legacy default
+ would have stripped the domain part.
+ Thanks to BlinkMind, Inc. http://www.blinkmind.com for sponsoring this
+ development.
+- bugfix: imudp went into an endless loop under some circumstances
+ (but could also leave it under some other circumstances...)
+ Thanks to David Lang and speedfox for reporting this issue.
+---------------------------------------------------------------------------
+Version 4.1.2 [DEVEL] (rgerhards), 2008-12-04
+- bugfix: code did not compile without zlib
+- security bugfix: $AllowedSender was not honored, all senders were
+ permitted instead (see https://www.rsyslog.com/Article322.phtml)
+- security fix: imudp emitted a message when a non-permitted sender
+ tried to send a message to it. This behavior is operator-configurable.
+ If enabled, a message was emitted each time. That way an attacker could
+ effectively fill the disk via this facility. The message is now
+ emitted only once in a minute (this currently is a hard-coded limit,
+ if someone comes up with a good reason to make it configurable, we
+ will probably do that).
+- doc bugfix: typo in v3 compatibility document directive syntax
+ thanks to Andrej for reporting
+- imported other changes from 3.21.8 and 3.20.1 (see there)
+---------------------------------------------------------------------------
+Version 4.1.1 [DEVEL] (rgerhards), 2008-11-26
+- added $PrivDropToGroup, $PrivDropToUser, $PrivDropToGroupID,
+ $PrivDropToUserID config directives to enable dropping privileges.
+ This is an effort to provide a security enhancement. For the limits of this
+ approach, see http://wiki.rsyslog.com/index.php/Security
+- re-enabled imklog to compile on FreeBSD (brought in from beta)
+---------------------------------------------------------------------------
+Version 4.1.0 [DEVEL] (rgerhards), 2008-11-18
+
+********************************* WARNING *********************************
+This version has a slightly different on-disk format for message entries.
+As a consequence, old queue files being read by this version may have
+an invalid output timestamp, which could result to some malfunction inside
+the output driver. It is recommended to drain queues with the previous
+version before switching to this one.
+********************************* WARNING *********************************
+
+- greatly enhanced performance when compared to v3.
+- added configuration directive "HUPisRestart" which enables to configure
+ HUP to be either a full restart or "just" a lightweight way to
+ close open files.
+- enhanced legacy syslog parser to detect year if part of the timestamp
+ the format is based on what Cisco devices seem to emit.
+- added a setting "$OptimizeForUniprocessor" to enable users to turn off
+ pthread_yield calls which are counter-productive on multiprocessor
+ machines (but have been shown to be useful on uniprocessors)
+- reordered imudp processing. Message parsing is now done as part of main
+ message queue worker processing (was part of the input thread)
+ This should also improve performance, as potentially more work is
+ done in parallel.
+- bugfix: compressed syslog messages could be slightly mis-uncompressed
+ if the last byte of the compressed record was a NUL
+- added $UDPServerTimeRequery option which enables to work with
+ less accurate timestamps in favor of performance. This enables querying
+ of the time only every n-th time if imudp is running in the tight
+ receive loop (aka receiving messages at a high rate)
+- doc bugfix: queue doc had wrong parameter name for setting controlling
+ worker thread shutdown period
+- restructured rsyslog.conf documentation
+- bugfix: memory leak in ompgsql
+ Thanks to Ken for providing the patch
+---------------------------------------------------------------------------
+Version 3.22.4 [v3-stable] (rgerhards), 2010-??-??
+- bugfix: action resume interval incorrectly handled, thus took longer to
+ resume
+- bugfix: cosmetic: proper constant used instead of number in open call
+- bugfix: timestamp was incorrectly calculated for timezones with minute
+ offset
+ closes: http://bugzilla.adiscon.com/show_bug.cgi?id=271
+- improved some code based on clang static analyzer results
+- bugfix: potential misaddressing in property replacer
+- bugfix: improper handling of invalid PRI values
+ references: CVE-2014-3634
+---------------------------------------------------------------------------
+Version 3.22.3 [v3-stable] (rgerhards), 2010-11-24
+- bugfix(important): problem in TLS handling could cause rsyslog to loop
+ in a tight loop, effectively disabling functionality and bearing the
+ risk of unresponsiveness of the whole system.
+ Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
+---------------------------------------------------------------------------
+Version 3.22.2 [v3-stable] (rgerhards), 2010-08-05
+- bugfix: comment char ('#') in literal terminated script parsing
+ and thus could not be used.
+ but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
+- enhance: imrelp now also provides remote peer's IP address
+ [if librelp != 1.0.0 is used]
+- bugfix: sending syslog messages with zip compression did not work
+- bugfix: potential hang condition on queue shutdown
+- bugfix: segfault on startup when -q or -Q option was given
+ bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=157
+ Thanks to Jonas Nogueira for reporting this bug.
+- clarified use of $ActionsSendStreamDriver[AuthMode/PermittedPeers]
+ in doc set (require TLS drivers)
+- bugfix: $CreateDirs variable not properly initialized, default thus
+ was random (but most often "on")
+- bugfix: potential segfault when -p command line option was used
+ thanks to varmojfekoj for pointing me at this bug
+- bugfix: programname filter in ! configuration can not be reset
+ Thanks to Kiss Gabor for the patch.
+---------------------------------------------------------------------------
+Version 3.22.1 [v3-stable] (rgerhards), 2009-07-02
+- bugfix: invalid error message issued if $includeConfig was on an empty
+ set of files (e.g. *.conf, where none such files existed)
+ thanks to Michael Biebl for reporting this bug
+- bugfix: when run in foreground (but not in debug mode), a
+ debug message ("DoDie called") was emitted at shutdown. Removed.
+ thanks to Michael Biebl for reporting this bug
+- bugfix: some garbage was emitted to stderr on shutdown. This
+ garbage consisted of file names, which were written during
+ startup (key point: not a pointer error)
+ thanks to Michael Biebl for reporting this bug
+- bugfix: startup and shutdown message were emitted to stdout
+ thanks to Michael Biebl for reporting this bug
+- bugfix: error messages were not emitted to stderr in forked mode
+ (stderr and stdo are now kept open across forks)
+- bugfix: internal messages were emitted to whatever file had fd2 when
+ rsyslogd ran in forked mode (as usual!)
+ Thanks to varmojfekoj for the patch
+- small enhancement: config validation run now exits with code 1 if an
+ error is detected. This change is considered important but small enough
+ to apply it directly to the stable version. [But it is a border case,
+ the change requires more code than I had hoped. Thus I have NOT tried
+ to actually catch all cases, this is left for the current devel
+ releases, if necessary]
+- bugfix: light and full delay watermarks had invalid values, badly
+ affecting performance for delayable inputs
+- bugfix: potential segfault issue when multiple $UDPServerRun directives
+ are specified. Thanks to Michael Biebl for helping to debug this one.
+- relaxed GnuTLS version requirement to 1.4.0 after confirmation from the
+ field that this version is sufficient
+- bugfix: parser did not properly handle empty structured data
+- bugfix: invalid mutex release in msg.c (detected under thread debugger,
+ seems not to have any impact on actual deployments)
+---------------------------------------------------------------------------
+Version 3.22.0 [v3-stable] (rgerhards), 2009-04-21
+This is the first stable release that includes the full functionality
+of the 3.21.x version tree.
+- bugfix: $InputTCPMaxSessions config directive was accepted, but not
+ honored. This resulted in a fixed upper limit of 200 connections.
+- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
+ It has now been changed to 0700. For some background, please see
+ http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
+- bugfix: ompgsql did not detect problems in sql command execution
+ this could cause loss of messages. The handling was correct if the
+ connection broke, but not if there was a problem with statement
+ execution. The most probable case for such a case would be invalid
+ sql inside the template, and this is now much easier to diagnose.
+---------------------------------------------------------------------------
+Version 3.21.11 [BETA] (rgerhards), 2009-04-03
+- build system improvements contributed by Michael Biebl - thx!
+- all patches from 3.20.5 incorporated (see it's ChangeLog entry)
+---------------------------------------------------------------------------
+Version 3.21.10 [BETA] (rgerhards), 2009-02-02
+- bugfix: inconsistent use of mutex/atomic operations could cause segfault
+ details are too many, for full analysis see blog post at:
+ http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
+- the string "Do Die" was accidentally emited upon exit in non-debug mode
+ This has now been corrected. Thanks to varmojfekoj for the patch.
+- some legacy options were not correctly processed.
+ Thanks to varmojfekoj for the patch.
+- doc bugfix: v3-compatibility document had typo in config directive
+ thanks to Andrej for reporting this
+---------------------------------------------------------------------------
+Version 3.21.9 [BETA] (rgerhards), 2008-12-04
+- re-release of 3.21.8 with an additional fix, that could also lead
+ to DoS; 3.21.8 has been removed from the official download archives
+- security fix: imudp emitted a message when a non-permitted sender
+ tried to send a message to it. This behavior is operator-configurable.
+ If enabled, a message was emitted each time. That way an attacker could
+ effectively fill the disk via this facility. The message is now
+ emitted only once in a minute (this currently is a hard-coded limit,
+ if someone comes up with a good reason to make it configurable, we
+ will probably do that).
+---------------------------------------------------------------------------
+Version 3.21.8 [BETA] (rgerhards), 2008-12-04
+- bugfix: imklog did not compile on FreeBSD
+- security bugfix: $AllowedSender was not honored, all senders were
+ permitted instead (see https://www.rsyslog.com/Article322.phtml)
+- merged in all other changes from 3.20.1 (see there)
+---------------------------------------------------------------------------
+Version 3.21.7 [BETA] (rgerhards), 2008-11-11
+- this is the new beta branch, based on the former 3.21.6 devel
+- new functionality: ZERO property replacer nomatch option (from v3-stable)
+---------------------------------------------------------------------------
+Version 3.21.6 [DEVEL] (rgerhards), 2008-10-22
+- consolidated time calls during msg object creation, improves performance
+ and consistency
+- bugfix: solved a segfault condition
+- bugfix: subsecond time properties generated by imfile, imklog and
+ internal messages could be slightly inconsistent
+- bugfix: (potentially big) memory leak on HUP if queues could not be
+ drained before timeout - thanks to David Lang for pointing this out
+- added capability to support multiple module search paths. Thank
+ to Marius Tomaschewski for providing the patch.
+- bugfix: im3195 did no longer compile
+- improved "make distcheck" by ensuring everything relevant is recompiled
+---------------------------------------------------------------------------
+Version 3.21.5 [DEVEL] (rgerhards), 2008-09-30
+- performance optimization: unnecessary time() calls during message
+ parsing removed - thanks to David Lang for his excellent performance
+ analysis
+- added new capability to property replacer: multiple immediately
+ successive field delimiters are treated as a single one.
+ Thanks to Zhuang Yuyao for the patch.
+- added message property "inputname", which contains the name of the
+ input (module) that generated it. Presence is depending on support in
+ each input module (else it is blank).
+- added system property "$myhostname", which contains the name of the
+ local host as it knows itself.
+- imported a number of fixes and enhancements from the stable and
+ devel branches, including a fix to a potential segfault on HUP
+ when using UDP listeners
+- re-enabled gcc builtin atomic operations and added a proper
+ ./configure check
+- bugfix: potential race condition when adding messages to queue
+ There was a wrong order of mutex lock operations. It is hard to
+ believe that really caused problems, but in theory it could and with
+ threading we often see that theory becomes practice if something is only
+ used long enough on a fast enough machine with enough CPUs ;)
+- cleaned up internal debug system code and made it behave better
+ in regard to multi-threading
+---------------------------------------------------------------------------
+Version 3.21.4 [DEVEL] (rgerhards), 2008-09-04
+- removed compile time fixed message size limit (was 2K), limit can now
+ be set via $MaxMessageSize global config directive (finally gotten rid
+ of MAXLINE ;))
+- enhanced doc for $ActionExecOnlyEveryNthTimeTimeout
+- integrated a number of patches from 3.18.4, namely
+ - bugfix: order-of magnitude issue with base-10 size definitions
+ in config file parser. Could lead to invalid sizes, constraints
+ etc for e.g. queue files and any other object whose size was specified
+ in base-10 entities. Did not apply to binary entities. Thanks to
+ RB for finding this bug and providing a patch.
+ - bugfix: action was not called when system time was set backwards
+ (until the previous time was reached again). There are still some
+ side-effects when time is rolled back (A time rollback is really a bad
+ thing to do, ideally the OS should issue pseudo time (like NetWare did)
+ when the user tries to roll back time). Thanks to varmojfekoj for this
+ patch.
+ - doc bugfix: rsyslog.conf man page improved and minor nit fixed
+ thanks to Lukas Kuklinek for the patch.
+---------------------------------------------------------------------------
+Version 3.21.3 [DEVEL] (rgerhards), 2008-08-13
+- added ability to specify flow control mode for imuxsock
+- added ability to execute actions only after the n-th call of the action
+ This also lead to the addition of two new config directives:
+ $ActionExecOnlyEveryNthTime and $ActionExecOnlyEveryNthTimeTimeout
+ This feature is useful, for example, for alerting: it permits you to
+ send an alert only after at least n occurrences of a specific message
+ have been seen by rsyslogd. This protects against false positives
+ due to waiting for additional confirmation.
+- bugfix: IPv6 addresses could not be specified in forwarding actions
+ New syntax @[addr]:port introduced to enable that. Root problem was IPv6
+ addresses contain colons.
+- somewhat enhanced debugging messages
+- imported from 3.18.3:
+ - enhanced ommysql to support custom port to connect to server
+ Port can be set via new $ActionOmmysqlServerPort config directive
+ Note: this was a very minor change and thus deemed appropriate to be
+ done in the stable release.
+ - bugfix: misspelled config directive, previously was
+ $MainMsgQueueWorkeTimeoutrThreadShutdown, is now
+ $MainMsgQueueWorkerTimeoutThreadShutdown. Note that the misspelled
+ directive is not preserved - if the misspelled directive was used
+ (which I consider highly unlikely), the config file must be changed.
+ Thanks to lperr for reporting the bug.
+---------------------------------------------------------------------------
+Version 3.21.2 [DEVEL] (rgerhards), 2008-08-04
+- added $InputUnixListenSocketHostName config directive, which permits to
+ override the hostname being used on a local unix socket. This is useful
+ for differentiating "hosts" running in several jails. Feature was
+ suggested by David Darville, thanks for the suggestion.
+- enhanced ommail to support multiple email recipients. This is done by
+ specifying $ActionMailTo multiple times. Note that this introduces a
+ small incompatibility to previous config file syntax: the recipient
+ list is now reset for each action (we honestly believe that will
+ not cause any problem - apologies if it does).
+- enhanced troubleshooting documentation
+---------------------------------------------------------------------------
+Version 3.21.1 [DEVEL] (rgerhards), 2008-07-30
+- bugfix: no error was reported if the target of a $IncludeConfig
+ could not be accessed.
+- added testbed for common config errors
+- added doc for -u option to rsyslogd man page
+- enhanced config file checking - no active actions are detected
+- added -N rsyslogd command line option for a config validation run
+ (which does not execute actual syslogd code and does not interfere
+ with a running instance)
+- somewhat improved emergency configuration. It is now also selected
+ if the config contains no active actions
+- rsyslogd error messages are now reported to stderr by default. can be
+ turned off by the new "$ErrorMessagesToStderr off" directive
+ Thanks to HKS for suggesting the new features.
+---------------------------------------------------------------------------
+Version 3.21.0 [DEVEL] (rgerhards), 2008-07-18
+- starts a new devel branch
+- added a generic test driver for RainerScript plus some test cases
+ to the testbench
+- added a small diagnostic tool to obtain result of gethostname() API
+- imported all changes from 3.18.1 until today (some quite important,
+ see below)
+---------------------------------------------------------------------------
+Version 3.20.6 [v3-stable] (rgerhards), 2009-04-16
+- this is the last v3-stable for the 3.20.x series
+- bugfix: $InputTCPMaxSessions config directive was accepted, but not
+ honored. This resulted in a fixed upper limit of 200 connections.
+- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
+ It has now been changed to 0700. For some background, please see
+ http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
+---------------------------------------------------------------------------
+Version 3.20.5 [v3-stable] (rgerhards), 2009-04-02
+- bugfix: potential abort with DA queue after high watermark is reached
+ There exists a race condition that can lead to a segfault. Thanks
+ go to vbernetr, who performed the analysis and provided patch, which
+ I only tweaked a very little bit.
+- fixed bugs in RainerScript:
+ o when converting a number and a string to a common type, both were
+ actually converted to the other variable's type.
+ o the value of rsCStrConvertToNumber() was miscalculated.
+ Thanks to varmojfekoj for the patch
+- fixed a bug in configure.ac which resulted in problems with
+ environment detection - thanks to Michael Biebl for the patch
+- fixed a potential segfault problem in gssapi code
+ thanks to varmojfekoj for the patch
+- doc enhance: provide standard template for MySQL module and instructions
+ on how to modify schema
+---------------------------------------------------------------------------
+Version 3.20.4 [v3-stable] (rgerhards), 2009-02-09
+- bugfix: inconsistent use of mutex/atomic operations could cause segfault
+ details are too many, for full analysis see blog post at:
+ http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
+- bugfix: invalid ./configure settings for RFC3195
+ thanks to Michael Biebl for the patch
+- bugfix: invalid mutex access in msg.c
+- doc bugfix: dist tarball missed 2 files, had one extra file that no
+ longer belongs into it. Thanks to Michael Biebl for pointing this out.
+---------------------------------------------------------------------------
+Version 3.20.3 [v3-stable] (rgerhards), 2009-01-19
+- doc bugfix: v3-compatibility document had typo in config directive
+ thanks to Andrej for reporting this
+- fixed a potential segfault condition with $AllowedSender directive
+ On HUP, the root pointers were not properly cleaned up. Thanks to
+ Michael Biebl, olgoat, and Juha Koho for reporting and analyzing
+ the bug.
+---------------------------------------------------------------------------
+Version 3.20.2 [v3-stable] (rgerhards), 2008-12-04
+- re-release of 3.20.1 with an additional fix, that could also lead
+ to DoS; 3.20.1 has been removed from the official download archives
+- security fix: imudp emitted a message when a non-permitted sender
+ tried to send a message to it. This behavior is operator-configurable.
+ If enabled, a message was emitted each time. That way an attacker could
+ effectively fill the disk via this facility. The message is now
+ emitted only once in a minute (this currently is a hard-coded limit,
+ if someone comes up with a good reason to make it configurable, we
+ will probably do that).
+---------------------------------------------------------------------------
+Version 3.20.1 [v3-stable] (rgerhards), 2008-12-04
+- security bugfix: $AllowedSender was not honored, all senders were
+ permitted instead
+- enhance: regex nomatch option "ZERO" has been added
+ This allows one to return the string 0 if a regular expression is
+ not found. This is probably useful for storing numerical values into
+ database columns.
+- bugfix: memory leak in gtls netstream driver fixed
+ memory was lost each time a TLS session was torn down. This could
+ result in a considerable memory leak if it happened quite frequently
+ (potential system crash condition)
+- doc update: documented how to specify multiple property replacer
+ options + link to new online regex generator tool added
+- minor bugfix: very small memory leak in gtls netstream driver
+ around a handful of bytes (< 20) for each HUP
+- improved debug output for regular expressions inside property replacer
+ RE's seem to be a big trouble spot and I would like to have more
+ information inside the debug log. So I decided to add some additional
+ debug strings permanently.
+---------------------------------------------------------------------------
+Version 3.20.0 [v3-stable] (rgerhards), 2008-11-05
+- this is the initial release of the 3.19.x branch as a stable release
+- bugfix: double-free in pctp netstream driver. Thank to varmojfekoj
+ for the patch
+---------------------------------------------------------------------------
+Version 3.19.12 [BETA] (rgerhards), 2008-10-16
+- bugfix: subseconds where not correctly extracted from a timestamp
+ if that timestamp did not contain any subsecond information (the
+ resulting string was garbage but should have been "0", what it
+ now is).
+- increased maximum size of a configuration statement to 4K (was 1K)
+- imported all fixes from the stable branch (quite a lot)
+- bugfix: (potentially big) memory leak on HUP if queues could not be
+ drained before timeout - thanks to David Lang for pointing this out
+---------------------------------------------------------------------------
+Version 3.19.11 [BETA] (rgerhards), 2008-08-25
+This is a refresh of the beta. No beta-specific fixes have been added.
+- included fixes from v3-stable (most importantly 3.18.3)
+---------------------------------------------------------------------------
+Version 3.19.10 [BETA] (rgerhards), 2008-07-15
+- start of a new beta branch based on former 3.19 devel branch
+- bugfix: bad memory leak in disk-based queue modes
+- bugfix: UDP syslog forwarding did not work on all platforms
+ the ai_socktype was incorrectly set to 1. On some platforms, this
+ lead to failing name resolution (e.g. FreeBSD 7). Thanks to HKS for
+ reporting the bug.
+- bugfix: priority was incorrectly calculated on FreeBSD 7,
+ because the LOG_MAKEPRI() C macro has a different meaning there (it
+ is just a simple addition of facility and severity). I have changed
+ this to use own, consistent, code for PRI calculation. Thank to HKS
+ for reporting this bug.
+- bugfix (cosmetical): authorization was not checked when gtls handshake
+ completed immediately. While this sounds scary, the situation can not
+ happen in practice. We use non-blocking IO only for server-based gtls
+ session setup. As TLS requires the exchange of multiple frames before
+ the handshake completes, it simply is impossible to do this in one
+ step. However, it is useful to have the code path correct even for
+ this case - otherwise, we may run into problems if the code is changed
+ some time later (e.g. to use blocking sockets). Thanks to varmojfekoj
+ for providing the patch.
+- important queue bugfix from 3.18.1 imported (see below)
+- cleanup of some debug messages
+---------------------------------------------------------------------------
+Version 3.19.9 (rgerhards), 2008-07-07
+- added tutorial for creating a TLS-secured syslog infrastructure
+- rewritten omusrmsg to no longer fork() a new process for sending messages
+ this caused some problems with the threading model, e.g. zombies. Also,
+ it was far less optimal than it is now.
+- bugfix: machine certificate was required for client even in TLS anon mode
+ Reference: http://bugzilla.adiscon.com/show_bug.cgi?id=85
+ The fix also slightly improves performance by not storing certificates in
+ client sessions when there is no need to do so.
+- bugfix: RainerScript syntax error was not always detected
+---------------------------------------------------------------------------
+Version 3.19.8 (rgerhards), 2008-07-01
+- bugfix: gtls module did not correctly handle EGAIN (and similar) recv()
+ states. This has been fixed by introducing a new abstraction layer inside
+ gtls.
+- added (internal) error codes to error messages; added redirector to
+ web description of error codes
+ closes bug http://bugzilla.adiscon.com/show_bug.cgi?id=20
+- disabled compile warnings caused by third-party libraries
+- reduced number of compile warnings in gcc's -pedantic mode
+- some minor documentation improvements
+- included all fixes from beta 3.17.5
+---------------------------------------------------------------------------
+Version 3.19.7 (rgerhards), 2008-06-11
+- added new property replacer option "date-subseconds" that enables
+ to query just the subsecond part of a high-precision timestamp
+- somewhat improved plain tcp syslog reliability by doing a connection
+ check before sending. Credits to Martin Schuette for providing the
+ idea. Details are available at
+ http://blog.gerhards.net/2008/06/reliable-plain-tcp-syslog-once-again.html
+- made rsyslog tickless in the (usual and default) case that repeated
+ message reduction is turned off. More info:
+ http://blog.gerhards.net/2008/06/coding-to-save-environment.html
+- some build system cleanup, thanks to Michael Biebl
+- bugfix: compile under (Free)BSD failed due to some invalid library
+ definitions - this is fixed now. Thanks to Michael Biebl for the patch.
+---------------------------------------------------------------------------
+Version 3.19.6 (rgerhards), 2008-06-06
+- enhanced property replacer to support multiple regex matches
+- bugfix: part of permittedPeer structure was not correctly initialized
+ thanks to varmojfekoj for spotting this
+- bugfix: off-by-one bug during certificate check
+- bugfix: removed some memory leaks in TLS code
+---------------------------------------------------------------------------
+Version 3.19.5 (rgerhards), 2008-05-30
+- enabled Posix ERE expressions inside the property replacer
+ (previously BRE was permitted only)
+- provided ability to specify that a regular expression submatch shall
+ be used inside the property replacer
+- implemented in property replacer: if a regular expression does not match,
+ it can now either return "**NO MATCH** (default, as before), a blank
+ property or the full original property text
+- enhanced property replacer to support multiple regex matches
+---------------------------------------------------------------------------
+Version 3.19.4 (rgerhards), 2008-05-27
+- implemented x509/certvalid gtls auth mode
+- implemented x509/name gtls auth mode (including wildcards)
+- changed fingerprint gtls auth mode to new format fingerprint
+- protected gtls error string function by a mutex. Without it, we
+ could have a race condition in extreme cases. This was very remote,
+ but now can no longer happen.
+- changed config directive name to reflect different use
+ $ActionSendStreamDriverCertFingerprint is now
+ $ActionSendStreamDriverPermittedPeer and can be used both for
+ fingerprint and name authentication (similar to the input side)
+- bugfix: sender information (fromhost et al) was missing in imudp
+ thanks to sandiso for reporting this bug
+- this release fully implements IETF's syslog-transport-tls-12 plus
+ the latest text changes Joe Salowey provided via email. Not included
+ is ipAddress subjectAltName authentication, which I think will be
+ dropped from the draft. I don't think there is any real need for it.
+This release also includes all bug fix up to today from the beta
+and stable branches. Most importantly, this means the bugfix for
+100% CPU utilization by imklog.
+---------------------------------------------------------------------------
+Version 3.19.3 (rgerhards), 2008-05-21
+- added ability to authenticate the server against its certificate
+ fingerprint
+- added ability for client to provide its fingerprint
+- added ability for server to obtain client cert's fingerprint
+- bugfix: small mem leak in omfwd on exit (strmdriver name was not freed)
+- bugfix: $ActionSendStreamDriver had no effect
+- bugfix: default syslog port was no longer used if none was
+ configured. Thanks to varmojfekoj for the patch
+- bugfix: missing linker options caused build to fail on some
+ systems. Thanks to Tiziano Mueller for the patch.
+---------------------------------------------------------------------------
+Version 3.19.2 (rgerhards), 2008-05-16
+- bugfix: TCP input modules did incorrectly set fromhost property
+ (always blank)
+- bugfix: imklog did not set fromhost property
+- added "fromhost-ip" property
+ Note that adding this property changes the on-disk format for messages.
+ However, that should not have any bad effect on existing spool files.
+ But you will run into trouble if you create a spool file with this
+ version and then try to process it with an older one (after a downgrade).
+ Don't do that ;)
+- added "RSYSLOG_DebugFormat" canned template
+- bugfix: hostname and fromhost were swapped when a persisted message
+ (in queued mode) was read in
+- bugfix: lmtcpclt, lmtcpsrv and lmgssutil did all link to the static
+ runtime library, resulting in a large size increase (and potential
+ "interesting" effects). Thanks to Michael Biebl for reporting the size
+ issue.
+- bugfix: TLS server went into an endless loop in some situations.
+ Thanks to Michael Biebl for reporting the problem.
+- fixed potential segfault due to invalid call to cfsysline
+ thanks to varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 3.19.1 (rgerhards), 2008-05-07
+- configure help for --enable-gnutls wrong - said default is "yes" but
+ default actually is "no" - thanks to darix for pointing this out
+- file dirty.h was missing - thanks to darix for pointing this out
+- bugfix: man files were not properly distributed - thanks to
+ darix for reporting and to Michael Biebl for help with the fix
+- some minor cleanup
+---------------------------------------------------------------------------
+Version 3.19.0 (rgerhards), 2008-05-06
+- begins new devel branch version
+- implemented TLS for plain tcp syslog (this is also the world's first
+ implementation of IETF's upcoming syslog-transport-tls draft)
+- partly rewritten and improved omfwd among others, now loads TCP
+ code only if this is actually necessary
+- split of a "runtime library" for rsyslog - this is not yet a clean
+ model, because some modularization is still outstanding. In theory,
+ this shall enable other utilities but rsyslogd to use the same
+ runtime
+- implemented im3195, the RFC3195 input as a plugin
+- changed directory structure, files are now better organized
+- a lot of cleanup in regard to modularization
+- -c option no longer must be the first option - thanks to varmojfekoj
+ for the patch
+---------------------------------------------------------------------------
+Version 3.18.7 (rgerhards), 2008-12-??
+- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
+ It has now been changed to 0700. For some background, please see
+ http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
+- fixed a potential segfault condition with $AllowedSender directive
+ On HUP, the root pointers were not properly cleaned up. Thanks to
+ Michael Biebl, olgoat, and Juha Koho for reporting and analyzing
+ the bug.
+- some legacy options were not correctly processed.
+ Thanks to varmojfekoj for the patch.
+- doc bugfix: some spelling errors in man pages corrected. Thanks to
+ Geoff Simmons for the patch.
+---------------------------------------------------------------------------
+Version 3.18.6 (rgerhards), 2008-12-08
+- security bugfix: $AllowedSender was not honored, all senders were
+ permitted instead (see https://www.rsyslog.com/Article322.phtml)
+ (backport from v3-stable, v3.20.9)
+- minor bugfix: dual close() call on tcp session closure
+---------------------------------------------------------------------------
+Version 3.18.5 (rgerhards), 2008-10-09
+- bugfix: imudp input module could cause segfault on HUP
+ It did not properly de-init a variable acting as a linked list head.
+ That resulted in trying to access freed memory blocks after the HUP.
+- bugfix: rsyslogd could hang on HUP
+ because getnameinfo() is not cancel-safe, but was not guarded against
+ being cancelled. pthread_cancel() is routinely being called during
+ HUP processing.
+- bugfix[minor]: if queue size reached light_delay mark, enqueuing
+ could potentially be blocked for a longer period of time, which
+ was not the behavior desired.
+- doc bugfix: $ActionExecOnlyWhenPreviousIsSuspended was still misspelled
+ as $...OnlyIfPrev... in some parts of the documentation. Thanks to
+ Lorenzo M. Catucci for reporting this bug.
+- added doc on malformed messages, cause and how to work-around, to the
+ doc set
+- added doc on how to build from source repository
+---------------------------------------------------------------------------
+Version 3.18.4 (rgerhards), 2008-09-18
+- bugfix: order-of magnitude issue with base-10 size definitions
+ in config file parser. Could lead to invalid sizes, constraints
+ etc for e.g. queue files and any other object whose size was specified
+ in base-10 entities. Did not apply to binary entities. Thanks to
+ RB for finding this bug and providing a patch.
+- bugfix: action was not called when system time was set backwards
+ (until the previous time was reached again). There are still some
+ side-effects when time is rolled back (A time rollback is really a bad
+ thing to do, ideally the OS should issue pseudo time (like NetWare did)
+ when the user tries to roll back time). Thanks to varmojfekoj for this
+ patch.
+- doc bugfix: rsyslog.conf man page improved and minor nit fixed
+ thanks to Lukas Kuklinek for the patch.
+- bugfix: error code -2025 was used for two different errors. queue full
+ is now -2074 and -2025 is unique again. (did cause no real problem
+ except for troubleshooting)
+- bugfix: default discard severity was incorrectly set to 4, which lead
+ to discard-on-queue-full to be enabled by default. That could cause
+ message loss where non was expected. The default has now been changed
+ to the correct value of 8, which disables the functionality. This
+ problem applied both to the main message queue and the action queues.
+ Thanks to Raoul Bhatia for pointing out this problem.
+- bugfix: option value for legacy -a option could not be specified,
+ resulting in strange operations. Thanks to Marius Tomaschewski
+ for the patch.
+- bugfix: colon after date should be ignored, but was not. This has
+ now been corrected. Required change to the internal ParseTIMESTAMP3164()
+ interface.
+---------------------------------------------------------------------------
+Version 3.18.3 (rgerhards), 2008-08-18
+- bugfix: imfile could cause a segfault upon rsyslogd HUP and termination
+ Thanks to lperr for an excellent bug report that helped detect this
+ problem.
+- enhanced ommysql to support custom port to connect to server
+ Port can be set via new $ActionOmmysqlServerPort config directive
+ Note: this was a very minor change and thus deemed appropriate to be
+ done in the stable release.
+- bugfix: misspelled config directive, previously was
+ $MainMsgQueueWorkeTimeoutrThreadShutdown, is now
+ $MainMsgQueueWorkerTimeoutThreadShutdown. Note that the misspelled
+ directive is not preserved - if the misspelled directive was used
+ (which I consider highly unlikely), the config file must be changed.
+ Thanks to lperr for reporting the bug.
+- disabled flow control for imuxsock, as it could cause system hangs
+ under some circumstances. The devel (3.21.3 and above) will
+ re-enable it and provide enhanced configurability to overcome the
+ problems if they occur.
+---------------------------------------------------------------------------
+Version 3.18.2 (rgerhards), 2008-08-08
+- merged in IPv6 forwarding address bugfix from v2-stable
+---------------------------------------------------------------------------
+Version 3.18.1 (rgerhards), 2008-07-21
+- bugfix: potential segfault in creating message mutex in non-direct queue
+ mode. rsyslogd segfaults on freeBSD 7.0 (an potentially other platforms)
+ if an action queue is running in any other mode than non-direct. The
+ same problem can potentially be triggered by some main message queue
+ settings. In any case, it will manifest during rsyslog's startup. It is
+ unlikely to happen after a successful startup (the only window of
+ exposure may be a relatively seldom executed action running in queued
+ mode). This has been corrected. Thank to HKS for point out the problem.
+- bugfix: priority was incorrectly calculated on FreeBSD 7,
+ because the LOG_MAKEPRI() C macro has a different meaning there (it
+ is just a simple addition of facility and severity). I have changed
+ this to use own, consistent, code for PRI calculation. [Backport from
+ 3.19.10]
+- bugfix: remove PRI part from kernel message if it is present
+ Thanks to Michael Biebl for reporting this bug
+- bugfix: mark messages were not correctly written to text log files
+ the markmessageinterval was not correctly propagated to all places
+ where it was needed. This resulted in rsyslog using the default
+ (20 minutes) in some code paths, what looked to the user like mark
+ messages were never written.
+- added a new property replacer option "sp-if-no-1st-sp" to cover
+ a problem with RFC 3164 based interpretation of tag separation. While
+ it is a generic approach, it fixes a format problem introduced in
+ 3.18.0, where kernel messages no longer had a space after the tag.
+ This is done by a modification of the default templates.
+ Please note that this may affect some messages where there intentionally
+ is no space between the tag and the first character of the message
+ content. If so, this needs to be worked around via a specific
+ template. However, we consider this scenario to be quite remote and,
+ even if it exists, it is not expected that it will actually cause
+ problems with log parsers (instead, we assume the new default template
+ behavior may fix previous problems with log parsers due to the
+ missing space).
+- bugfix: imklog module was not correctly compiled for GNU/kFreeBSD.
+ Thanks to Petr Salinger for the patch
+- doc bugfix: property replacer options secpath-replace and
+ secpath-drop were not documented
+- doc bugfix: fixed some typos in rsyslog.conf man page
+- fixed typo in source comment - thanks to Rio Fujita
+- some general cleanup (thanks to Michael Biebl)
+---------------------------------------------------------------------------
+Version 3.18.0 (rgerhards), 2008-07-11
+- begun a new v3-stable based on former 3.17.4 beta plus patches to
+ previous v3-stable
+- bugfix in RainerScript: syntax error was not always detected
+---------------------------------------------------------------------------
+Version 3.17.5 (rgerhards), 2008-06-27
+- added doc: howto set up a reliable connection to remote server via
+ queued mode (and plain tcp protocol)
+- bugfix: comments after actions were not properly treated. For some
+ actions (e.g. forwarding), this could also lead to invalid configuration
+---------------------------------------------------------------------------
+Version 3.17.4 (rgerhards), 2008-06-16
+- changed default for $KlogSymbolLookup to "off". The directive is
+ also scheduled for removal in a later version. This was necessary
+ because on kernels >= 2.6, the kernel does the symbol lookup itself. The
+ imklog lookup logic then breaks the log message and makes it unusable.
+---------------------------------------------------------------------------
+Version 3.17.3 (rgerhards), 2008-05-28
+- bugfix: imklog went into an endless loop if a PRI value was inside
+ a kernel log message (unusual case under Linux, frequent under BSD)
+---------------------------------------------------------------------------
+Version 3.17.2 (rgerhards), 2008-05-04
+- this version is the new beta, based on 3.17.1 devel feature set
+- merged in imklog bug fix from v3-stable (3.16.1)
+---------------------------------------------------------------------------
+Version 3.17.1 (rgerhards), 2008-04-15
+- removed dependency on MAXHOSTNAMELEN as much as it made sense.
+ GNU/Hurd does not define it (because it has no limit), and we have taken
+ care for cases where it is undefined now. However, some very few places
+ remain where IMHO it currently is not worth fixing the code. If it is
+ not defined, we have used a generous value of 1K, which is above IETF
+ RFC's on hostname length at all. The memory consumption is no issue, as
+ there are only a handful of this buffers allocated *per run* -- that's
+ also the main reason why we consider it not worth to be fixed any further.
+- enhanced legacy syslog parser to handle slightly malformed messages
+ (with a space in front of the timestamp) - at least HP procurve is
+ known to do that and I won't outrule that others also do it. The
+ change looks quite unintrusive and so we added it to the parser.
+- implemented klogd functionality for BSD
+- implemented high precision timestamps for the kernel log. Thanks to
+ Michael Biebl for pointing out that the kernel log did not have them.
+- provided ability to discard non-kernel messages if they are present
+ in the kernel log (seems to happen on BSD)
+- implemented $KLogInternalMsgFacility config directive
+- implemented $KLogPermitNonKernelFacility config directive
+Plus a number of bugfixes that were applied to v3-stable and beta
+branches (not mentioned here in detail).
+---------------------------------------------------------------------------
+Version 3.17.0 (rgerhards), 2008-04-08
+- added native ability to send mail messages
+- removed no longer needed file relputil.c/.h
+- added $ActionExecOnlyOnceEveryInterval config directive
+- bugfix: memory leaks in script engine
+- bugfix: zero-length strings were not supported in object
+ deserializer
+- properties are now case-insensitive everywhere (script, filters,
+ templates)
+- added the capability to specify a processing (actually dequeue)
+ timeframe with queues - so things can be configured to be done
+ at off-peak hours
+- We have removed the 32 character size limit (from RFC3164) on the
+ tag. This had bad effects on existing environments, as sysklogd didn't
+ obey it either (probably another bug in RFC3164...). We now receive
+ the full size, but will modify the outputs so that only 32 characters
+ max are used by default. If you need large tags in the output, you need
+ to provide custom templates.
+- changed command line processing. -v, -M, -c options are now parsed
+ and processed before all other options. Inter-option dependencies
+ have been relieved. Among others, permits to specify initial module
+ load path via -M only (not the environment) which makes it much
+ easier to work with non-standard module library locations. Thanks
+ to varmojfekoj for suggesting this change. Matches bugzilla bug 55.
+- bugfix: some messages were emited without hostname
+Plus a number of bugfixes that were applied to v3-stable and beta
+branches (not mentioned here in detail).
+---------------------------------------------------------------------------
+Version 3.16.3 (rgerhards), 2008-07-11
+- updated information on rsyslog packages
+- bugfix: memory leak in disk-based queue modes
+---------------------------------------------------------------------------
+Version 3.16.2 (rgerhards), 2008-06-25
+- fixed potential segfault due to invalid call to cfsysline
+ thanks to varmojfekoj for the patch
+- bugfix: some whitespaces where incorrectly not ignored when parsing
+ the config file. This is now corrected. Thanks to Michael Biebl for
+ pointing out the problem.
+---------------------------------------------------------------------------
+Version 3.16.1 (rgerhards), 2008-05-02
+- fixed a bug in imklog which lead to startup problems (including
+ segfault) on some platforms under some circumstances. Thanks to
+ Vieri for reporting this bug and helping to troubleshoot it.
+---------------------------------------------------------------------------
+Version 3.16.0 (rgerhards), 2008-04-24
+- new v3-stable (3.16.x) based on beta 3.15.x (RELP support)
+- bugfix: omsnmp had a too-small sized buffer for hostname+port. This
+ could not lead to a segfault, as snprintf() was used, but could cause
+ some trouble with extensively long hostnames.
+- applied patch from Tiziano Müller to remove some compiler warnings
+- added gssapi overview/howto thanks to Peter Vrabec
+- changed some files to grant LGPLv3 extended permissions on top of GPLv3
+ this also is the first sign of something that will evolve into a
+ well-defined "rsyslog runtime library"
+---------------------------------------------------------------------------
+Version 3.15.1 (rgerhards), 2008-04-11
+- bugfix: some messages were emited without hostname
+- disabled atomic operations for the time being because they introduce some
+ cross-platform trouble - need to see how to fix this in the best
+ possible way
+- bugfix: zero-length strings were not supported in object
+ deserializer
+- added librelp check via PKG_CHECK thanks to Michael Biebl's patch
+- file relputil.c deleted, is not actually needed
+- added more meaningful error messages to rsyslogd (when some errors
+ happens during startup)
+- bugfix: memory leaks in script engine
+- bugfix: $hostname and $fromhost in RainerScript did not work
+This release also includes all changes applied to the stable versions
+up to today.
+---------------------------------------------------------------------------
+Version 3.15.0 (rgerhards), 2008-04-01
+- major new feature: imrelp/omrelp support reliable delivery of syslog
+ messages via the RELP protocol and librelp (http://www.librelp.com).
+ Plain tcp syslog, so far the best reliability solution, can lose
+ messages when something goes wrong or a peer goes down. With RELP,
+ this can no longer happen. See imrelp.html for more details.
+- bugfix: rsyslogd was no longer build by default; man pages are
+ only installed if corresponding option is selected. Thanks to
+ Michael Biebl for pointing these problems out.
+---------------------------------------------------------------------------
+Version 3.14.2 (rgerhards), 2008-04-09
+- bugfix: segfault with expression-based filters
+- bugfix: omsnmp did not deref errmsg object on exit (no bad effects caused)
+- some cleanup
+- bugfix: imklog did not work well with kernel 2.6+. Thanks to Peter
+ Vrabec for patching it based on the development in sysklogd - and thanks
+ to the sysklogd project for upgrading klogd to support the new
+ functionality
+- some cleanup in imklog
+- bugfix: potential segfault in imklog when kernel is compiled without
+ /proc/kallsyms and the file System.map is missing. Thanks to
+ Andrea Morandi for pointing it out and suggesting a fix.
+- bugfixes, credits to varmojfekoj:
+ * reset errno before printing a warning message
+ * misspelled directive name in code processing legacy options
+- bugfix: some legacy options not correctly interpreted - thanks to
+ varmojfekoj for the patch
+- improved detection of modules being loaded more than once
+ thanks to varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 3.14.1 (rgerhards), 2008-04-04
+- bugfix: some messages were emited without hostname
+- bugfix: rsyslogd was no longer build by default; man pages are
+ only installed if corresponding option is selected. Thanks to
+ Michael Biebl for pointing these problems out.
+- bugfix: zero-length strings were not supported in object
+ deserializer
+- disabled atomic operations for this stable build as it caused
+ platform problems
+- bugfix: memory leaks in script engine
+- bugfix: $hostname and $fromhost in RainerScript did not work
+- bugfix: some memory leak when queue is running in disk mode
+- man pages improved thanks to varmojfekoj and Peter Vrabec
+- We have removed the 32 character size limit (from RFC3164) on the
+ tag. This had bad effects on existing environments, as sysklogd didn't
+ obey it either (probably another bug in RFC3164...). We now receive
+ the full size, but will modify the outputs so that only 32 characters
+ max are used by default. If you need large tags in the output, you need
+ to provide custom templates.
+- bugfix: some memory leak when queue is running in disk mode
+---------------------------------------------------------------------------
+Version 3.14.0 (rgerhards), 2008-04-02
+An interim version was accidentally released to the web. It was named 3.14.0.
+To avoid confusion, we have not assigned this version number to any
+official release. If you happen to use 3.14.0, please update to 3.14.1.
+---------------------------------------------------------------------------
+Version 3.13.0-dev0 (rgerhards), 2008-03-31
+- bugfix: accidentally set debug option in 3.12.5 reset to production
+ This option prevented dlclose() to be called. It had no real bad effects,
+ as the modules were otherwise correctly deinitialized and dlopen()
+ supports multiple opens of the same module without any memory footprint.
+- removed --enable-mudflap, added --enable-valgrind ./configure setting
+- bugfix: tcp receiver could segfault due to uninitialized variable
+- docfix: queue doc had a wrong directive name that prevented max worker
+ threads to be correctly set
+- worked a bit on atomic memory operations to support problem-free
+ threading (only at non-intrusive places)
+- added a --enable/disable-rsyslogd configure option so that
+ source-based packaging systems can build plugins without the need
+ to compile rsyslogd
+- some cleanup
+- test of potential new version number scheme
+---------------------------------------------------------------------------
+Version 3.12.5 (rgerhards), 2008-03-28
+- changed default for "last message repeated n times", which is now
+ off by default
+- implemented backward compatibility commandline option parsing
+- automatically generated compatibility config lines are now also
+ logged so that a user can diagnose problems with them
+- added compatibility mode for -a, -o and -p options
+- compatibility mode processing finished
+- changed default file output format to include high-precision timestamps
+- added a built-in template for previous syslogd file format
+- added new $ActionFileDefaultTemplate directive
+- added support for high-precision timestamps when receiving legacy
+ syslog messages
+- added new $ActionForwardDefaultTemplate directive
+- added new $ActionGSSForwardDefaultTemplate directive
+- added build-in templates for easier configuration
+- bugfix: fixed small memory leak in tcpclt.c
+- bugfix: fixed small memory leak in template regular expressions
+- bugfix: regular expressions inside property replacer did not work
+ properly
+- bugfix: QHOUR and HHOUR properties were wrongly calculated
+- bugfix: fixed memory leaks in stream class and imfile
+- bugfix: $ModDir did invalid bounds checking, potential overflow in
+ dbgprintf() - thanks to varmojfekoj for the patch
+- bugfix: -t and -g legacy options max number of sessions had a wrong
+ and much too high value
+---------------------------------------------------------------------------
+Version 3.12.4 (rgerhards), 2008-03-25
+- Greatly enhanced rsyslogd's file write performance by disabling
+ file syncing capability of output modules by default. This
+ feature is usually not required, not useful and an extreme performance
+ hit (both to rsyslogd as well as the system at large). Unfortunately,
+ most users enable it by default, because it was most intuitive to enable
+ it in plain old sysklogd syslog.conf format. There is now the
+ $ActionFileEnableSync config setting which must be enabled in order to
+ support syncing. By default it is off. So even if the old-format config
+ lines request syncing, it is not done unless explicitly enabled. I am
+ sure this is a very useful change and not a risk at all. I need to think
+ if I undo it under compatibility mode, but currently this does not
+ happen (I fear a lot of lazy users will run rsyslogd in compatibility
+ mode, again bringing up this performance problem...).
+- added flow control options to other input sources
+- added $HHOUR and $QHOUR system properties - can be used for half- and
+ quarter-hour logfile rotation
+- changed queue's discard severities default value to 8 (do not discard)
+ to prevent unintentional message loss
+- removed a no-longer needed callback from the output module
+ interface. Results in reduced code complexity.
+- bugfix/doc: removed no longer supported -h option from man page
+- bugfix: imklog leaked several hundred KB on each HUP. Thanks to
+ varmojfekoj for the patch
+- bugfix: potential segfault on module unload. Thanks to varmojfekoj for
+ the patch
+- bugfix: fixed some minor memory leaks
+- bugfix: fixed some slightly invalid memory accesses
+- bugfix: internally generated messages had "FROMHOST" property not set
+---------------------------------------------------------------------------
+Version 3.12.3 (rgerhards), 2008-03-18
+- added advanced flow control for congestion cases (mode depending on message
+ source and its capability to be delayed without bad side effects)
+- bugfix: $ModDir should not be reset on $ResetConfig - this can cause a lot
+ of confusion and there is no real good reason to do so. Also conflicts with
+ the new -M option and environment setting.
+- bugfix: TCP and GSSAPI framing mode variable was uninitialized, leading to
+ wrong framing (caused, among others, interop problems)
+- bugfix: TCP (and GSSAPI) octet-counted frame did not work correctly in all
+ situations. If the header was split across two packet reads, it was invalidly
+ processed, causing loss or modification of messages.
+- bugfix: memory leak in imfile
+- bugfix: duplicate public symbol in omfwd and omgssapi could lead to
+ segfault. thanks to varmojfekoj for the patch.
+- bugfix: rsyslogd aborted on sighup - thanks to varmojfekoj for the patch
+- some more internal cleanup ;)
+- begun relp modules, but these are not functional yet
+- Greatly enhanced rsyslogd's file write performance by disabling
+ file syncing capability of output modules by default. This
+ feature is usually not required, not useful and an extreme performance
+ hit (both to rsyslogd as well as the system at large). Unfortunately,
+ most users enable it by default, because it was most intuitive to enable
+ it in plain old sysklogd syslog.conf format. There is now a new config
+ setting which must be enabled in order to support syncing. By default it
+ is off. So even if the old-format config lines request syncing, it is
+ not done unless explicitly enabled. I am sure this is a very useful
+ change and not a risk at all. I need to think if I undo it under
+ compatibility mode, but currently this does not happen (I fear a lot of
+ lazy users will run rsyslogd in compatibility mode, again bringing up
+ this performance problem...).
+---------------------------------------------------------------------------
+Version 3.12.2 (rgerhards), 2008-03-13
+- added RSYSLOGD_MODDIR environment variable
+- added -M rsyslogd option (allows one to specify module directory location)
+- converted net.c into a loadable library plugin
+- bugfix: debug module now survives unload of loadable module when
+ printing out function call data
+- bugfix: not properly initialized data could cause several segfaults if
+ there were errors in the config file - thanks to varmojfekoj for the patch
+- bugfix: rsyslogd segfaulted when imfile read an empty line - thanks
+ to Johnny Tan for an excellent bug report
+- implemented dynamic module unload capability (not visible to end user)
+- some more internal cleanup
+- bugfix: imgssapi segfaulted under some conditions; this fix is actually
+ not just a fix but a change in the object model. Thanks to varmojfekoj
+ for providing the bug report, an initial fix and lots of good discussion
+ that lead to where we finally ended up.
+- improved session recovery when outbound tcp connection breaks, reduces
+ probability of message loss at the price of a highly unlikely potential
+ (single) message duplication
+---------------------------------------------------------------------------
+Version 3.12.1 (rgerhards), 2008-03-06
+- added library plugins, which can be automatically loaded
+- bugfix: actions were not correctly retried; caused message loss
+- changed module loader to automatically add ".so" suffix if not
+ specified (over time, this shall also ease portability of config
+ files)
+- improved debugging support; debug runtime options can now be set via
+ an environment variable
+- bugfix: removed debugging code that I forgot to remove before releasing
+ 3.12.0 (does not cause harm and happened only during startup)
+- added support for the MonitorWare syslog MIB to omsnmp
+- internal code improvements (more code converted into classes)
+- internal code reworking of the imtcp/imgssapi module
+- added capability to ignore client-provided timestamp on unix sockets and
+ made this mode the default; this was needed, as some programs (e.g. sshd)
+ log with inconsistent timezone information, what messes up the local
+ logs (which by default don't even contain time zone information). This
+ seems to be consistent with what sysklogd did for the past four years.
+ Alternate behavior may be desirable if gateway-like processes send
+ messages via the local log slot - in this case, it can be enabled
+ via the $InputUnixListenSocketIgnoreMsgTimestamp and
+ $SystemLogSocketIgnoreMsgTimestamp config directives
+- added ability to compile on HP UX; verified that imudp worked on HP UX;
+ however, we are still in need of people trying out rsyslogd on HP UX,
+ so it can not yet be assumed it runs there
+- improved session recovery when outbound tcp connection breaks, reduces
+ probability of message loss at the price of a highly unlikely potential
+ (single) message duplication
+---------------------------------------------------------------------------
+Version 3.12.0 (rgerhards), 2008-02-28
+- added full expression support for filters; filters can now contain
+ arbitrary complex boolean, string and arithmetic expressions
+---------------------------------------------------------------------------
+Version 3.11.6 (rgerhards), 2008-02-27
+- bugfix: gssapi libraries were still linked to rsyslog core, what should
+ no longer be necessary. Applied fix by Michael Biebl to solve this.
+- enabled imgssapi to be loaded side-by-side with imtcp
+- added InputGSSServerPermitPlainTCP config directive
+- split imgssapi source code somewhat from imtcp
+- bugfix: queue cancel cleanup handler could be called with
+ invalid pointer if dequeue failed
+- bugfix: rsyslogd segfaulted on second SIGHUP
+ tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=38
+- improved stability of queue engine
+- bugfix: queue disk file were not properly persisted when
+ immediately after closing an output file rsyslog was stopped
+ or huped (the new output file open must NOT have happened at
+ that point) - this lead to a sparse and invalid queue file
+ which could cause several problems to the engine (unpredictable
+ results). This situation should have happened only in very
+ rare cases. tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=40
+- bugfix: during queue shutdown, an assert invalidly triggered when
+ the primary queue's DA worker was terminated while the DA queue's
+ regular worker was still executing. This could result in a segfault
+ during shutdown.
+ tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=41
+- bugfix: queue properties sizeOnDisk, bytesRead were persisted to
+ disk with wrong data type (long instead of int64) - could cause
+ problems on 32 bit machines
+- bugfix: queue aborted when it was shut down, DA-enabled, DA mode
+ was just initiated but not fully initialized (a race condition)
+- bugfix: imfile could abort under extreme stress conditions
+ (when it was terminated before it could open all of its
+ to be monitored files)
+- applied patch from varmojfekoj to fix an issue with compatibility
+ mode and default module directories (many thanks!):
+ I've also noticed a bug in the compatibility code; the problem is that
+ options are parsed before configuration file so options which need a
+ module to be loaded will currently ignore any $moddir directive. This
+ can be fixed by moving legacyOptsHook() after config file parsing.
+ (see the attached patch) This goes against the logical order of
+ processing, but the legacy options are only few and it doesn't seem to
+ be a problem.
+- bugfix: object property deserializer did not handle negative numbers
+---------------------------------------------------------------------------
+Version 3.11.5 (rgerhards), 2008-02-25
+- new imgssapi module, changed imtcp module - this enables to load/package
+ GSSAPI support separately - thanks to varmojfekoj for the patch
+- compatibility mode (the -c option series) is now at least partly
+ completed - thanks to varmojfekoj for the patch
+- documentation for imgssapi and imtcp added
+- duplicate $ModLoad's for the same module are now detected and
+ rejected -- thanks to varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 3.11.4 (rgerhards), 2008-02-21
+- bugfix: debug.html was missing from release tarball - thanks to Michael
+ Biebl for bringing this to my attention
+- some internal cleanup on the stringbuf object calling interface
+- general code cleanup and further modularization
+- $MainMessageQueueDiscardSeverity can now also handle textual severities
+ (previously only integers)
+- bugfix: message object was not properly synchronized when the
+ main queue had a single thread and non-direct action queues were used
+- some documentation improvements
+---------------------------------------------------------------------------
+Version 3.11.3 (rgerhards), 2008-02-18
+- fixed a bug in imklog which lead to duplicate message content in
+ kernel logs
+- added support for better plugin handling in libdbi (we contributed
+ a patch to do that, we just now need to wait for the next libdbi
+ version)
+- bugfix: fixed abort when invalid template was provided to an action
+ bug http://bugzilla.adiscon.com/show_bug.cgi?id=4
+- re-instantiated SIGUSR1 function; added SIGUSR2 to generate debug
+ status output
+- added some documentation on runtime-debug settings
+- slightly improved man pages for novice users
+---------------------------------------------------------------------------
+Version 3.11.2 (rgerhards), 2008-02-15
+- added the capability to monitor text files and process their content
+ as syslog messages (including forwarding)
+- added support for libdbi, a database abstraction layer. rsyslog now
+ also supports the following databases via dbi drivers:
+ * Firebird/Interbase
+ * FreeTDS (access to MS SQL Server and Sybase)
+ * SQLite/SQLite3
+ * Ingres (experimental)
+ * mSQL (experimental)
+ * Oracle (experimental)
+ Additional drivers may be provided by the libdbi-drivers project, which
+ can be used by rsyslog as soon as they become available.
+- removed some left-over unnecessary dbgprintf's (cluttered screen,
+ cosmetic)
+- doc bugfix: html documentation for omsnmp was missing
+---------------------------------------------------------------------------
+Version 3.11.1 (rgerhards), 2008-02-12
+- SNMP trap sender added thanks to Andre Lorbach (omsnmp)
+- added input-plugin interface specification in form of a (copy) template
+ input module
+- applied documentation fix by Michael Biebl -- many thanks!
+- bugfix: immark did not have MARK flags set...
+- added x-info field to rsyslogd startup/shutdown message. Hopefully
+ points users to right location for further info (many don't even know
+ they run rsyslog ;))
+- bugfix: trailing ":" of tag was lost while parsing legacy syslog messages
+ without timestamp - thanks to Anders Blomdell for providing a patch!
+- fixed a bug in stringbuf.c related to STRINGBUF_TRIM_ALLOCSIZE, which
+ wasn't supposed to be used with rsyslog. Put a warning message up that
+ tells this feature is not tested and probably not worth the effort.
+ Thanks to Anders Blomdell fro bringing this to our attention
+- somewhat improved performance of string buffers
+- fixed bug that caused invalid treatment of tabs (HT) in rsyslog.conf
+- bugfix: setting for $EscapeControlCharactersOnReceive was not
+ properly initialized
+- clarified usage of space-cc property replacer option
+- improved abort diagnostic handler
+- some initial effort for malloc/free runtime debugging support
+- bugfix: using dynafile actions caused rsyslogd abort
+- fixed minor man errors thanks to Michael Biebl
+---------------------------------------------------------------------------
+Version 3.11.0 (rgerhards), 2008-01-31
+- implemented queued actions
+- implemented simple rate limiting for actions
+- implemented deliberate discarding of lower priority messages over higher
+ priority ones when a queue runs out of space
+- implemented disk quotas for disk queues
+- implemented the $ActionResumeRetryCount config directive
+- added $ActionQueueFilename config directive
+- added $ActionQueueSize config directive
+- added $ActionQueueHighWaterMark config directive
+- added $ActionQueueLowWaterMark config directive
+- added $ActionQueueDiscardMark config directive
+- added $ActionQueueDiscardSeverity config directive
+- added $ActionQueueCheckpointInterval config directive
+- added $ActionQueueType config directive
+- added $ActionQueueWorkerThreads config directive
+- added $ActionQueueTimeoutshutdown config directive
+- added $ActionQueueTimeoutActionCompletion config directive
+- added $ActionQueueTimeoutenQueue config directive
+- added $ActionQueueTimeoutworkerThreadShutdown config directive
+- added $ActionQueueWorkerThreadMinimumMessages config directive
+- added $ActionQueueMaxFileSize config directive
+- added $ActionQueueSaveonShutdown config directive
+- addded $ActionQueueDequeueSlowdown config directive
+- addded $MainMsgQueueDequeueSlowdown config directive
+- bugfix: added forgotten docs to package
+- improved debugging support
+- fixed a bug that caused $MainMsgQueueCheckpointInterval to work incorrectly
+- when a long-running action needs to be cancelled on shutdown, the message
+ that was processed by it is now preserved. This finishes support for
+ guaranteed delivery of messages (if the output supports it, of course)
+- fixed bug in output module interface, see
+ http://sourceforge.net/tracker/index.php?func=detail&aid=1881008&group_id=123448&atid=696552
+- changed the ommysql output plugin so that the (lengthy) connection
+ initialization now takes place in message processing. This works much
+ better with the new queued action mode (fast startup)
+- fixed a bug that caused a potential hang in file and fwd output module
+ varmojfekoj provided the patch - many thanks!
+- bugfixed stream class offset handling on 32bit platforms
+---------------------------------------------------------------------------
+Version 3.10.3 (rgerhards), 2008-01-28
+- fixed a bug with standard template definitions (not a big deal) - thanks
+ to varmojfekoj for spotting it
+- run-time instrumentation added
+- implemented disk-assisted queue mode, which enables on-demand disk
+ spooling if the queue's in-memory queue is exhausted
+- implemented a dynamic worker thread pool for processing incoming
+ messages; workers are started and shut down as need arises
+- implemented a run-time instrumentation debug package
+- implemented the $MainMsgQueueSaveOnShutdown config directive
+- implemented the $MainMsgQueueWorkerThreadMinimumMessages config directive
+- implemented the $MainMsgQueueTimeoutWorkerThreadShutdown config directive
+---------------------------------------------------------------------------
+Version 3.10.2 (rgerhards), 2008-01-14
+- added the ability to keep stop rsyslogd without the need to drain
+ the main message queue. In disk queue mode, rsyslog continues to
+ run from the point where it stopped. In case of a system failure, it
+ continues to process messages from the last checkpoint.
+- fixed a bug that caused a segfault on startup when no $WorkDir directive
+ was specified in rsyslog.conf
+- provided more fine-grain control over shutdown timeouts and added a
+ way to specify the enqueue timeout when the main message queue is full
+- implemented $MainMsgQueueCheckpointInterval config directive
+- implemented $MainMsgQueueTimeoutActionCompletion config directive
+- implemented $MainMsgQueueTimeoutEnqueue config directive
+- implemented $MainMsgQueueTimeoutShutdown config directive
+---------------------------------------------------------------------------
+Version 3.10.1 (rgerhards), 2008-01-10
+- implemented the "disk" queue mode. However, it currently is of very
+ limited use, because it does not support persistence over rsyslogd
+ runs. So when rsyslogd is stopped, the queue is drained just as with
+ the in-memory queue modes. Persistent queues will be a feature of
+ the next release.
+- performance-optimized string class, should bring an overall improvement
+- fixed a memory leak in imudp -- thanks to varmojfekoj for the patch
+- fixed a race condition that could lead to a rsyslogd hang when during
+ HUP or termination
+- done some doc updates
+- added $WorkDirectory config directive
+- added $MainMsgQueueFileName config directive
+- added $MainMsgQueueMaxFileSize config directive
+---------------------------------------------------------------------------
+Version 3.10.0 (rgerhards), 2008-01-07
+- implemented input module interface and initial input modules
+- enhanced threading for input modules (each on its own thread now)
+- ability to bind UDP listeners to specific local interfaces/ports and
+ ability to run multiple of them concurrently
+- added ability to specify listen IP address for UDP syslog server
+- license changed to GPLv3
+- mark messages are now provided by loadble module immark
+- rklogd is no longer provided. Its functionality has now been taken over
+ by imklog, a loadable input module. This offers a much better integration
+ into rsyslogd and makes sure that the kernel logger process is brought
+ up and down at the appropriate times
+- enhanced $IncludeConfig directive to support wildcard characters
+ (thanks to Michael Biebl)
+- all inputs are now implemented as loadable plugins
+- enhanced threading model: each input module now runs on its own thread
+- enhanced message queue which now supports different queueing methods
+ (among others, this can be used for performance fine-tuning)
+- added a large number of new configuration directives for the new
+ input modules
+- enhanced multi-threading utilizing a worker thread pool for the
+ main message queue
+- compilation without pthreads is no longer supported
+- much cleaner code due to new objects and removal of single-threading
+ mode
+---------------------------------------------------------------------------
+Version 2.0.8 V2-STABLE (rgerhards), 2008-??-??
+- bugfix: ompgsql did not detect problems in sql command execution
+ this could cause loss of messages. The handling was correct if the
+ connection broke, but not if there was a problem with statement
+ execution. The most probable case for such a case would be invalid
+ sql inside the template, and this is now much easier to diagnose.
+- doc bugfix: default for $DirCreateMode incorrectly stated
+---------------------------------------------------------------------------
+Version 2.0.7 V2-STABLE (rgerhards), 2008-04-14
+- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
+ It has now been changed to 0700. For some background, please see
+ http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
+- bugfix: "$CreateDirs off" also disabled file creation
+ Thanks to William Tisater for analyzing this bug and providing a patch.
+ The actual code change is heavily based on William's patch.
+- bugfix: memory leak in ompgsql
+ Thanks to Ken for providing the patch
+- bugfix: potential memory leak in msg.c
+ This one did not surface yet and the issue was actually found due to
+ a problem in v4 - but better fix it here, too
+---------------------------------------------------------------------------
+Version 2.0.6 V2-STABLE (rgerhards), 2008-08-07
+- bugfix: memory leaks in rsyslogd, primarily in singlethread mode
+ Thanks to Frederico Nunez for providing the fix
+- bugfix: copy&paste error lead to dangling if - this caused a very minor
+ issue with re-formatting a RFC3164 date when the message was invalidly
+ formatted and had a colon immediately after the date. This was in the
+ code for some years (even v1 had it) and I think it never had any
+ effect at all in practice. Though, it should be fixed - but definitely
+ nothing to worry about.
+---------------------------------------------------------------------------
+Version 2.0.6 V2-STABLE (rgerhards), 2008-08-07
+- bugfix: IPv6 addresses could not be specified in forwarding actions
+ New syntax @[addr]:port introduced to enable that. Root problem was IPv6
+ addresses contain colons. (backport from 3.21.3)
+---------------------------------------------------------------------------
+Version 2.0.5 STABLE (rgerhards), 2008-05-15
+- bugfix: regular expressions inside property replacer did not work
+ properly
+- adapted to liblogging 0.7.1+
+---------------------------------------------------------------------------
+Version 2.0.4 STABLE (rgerhards), 2008-03-27
+- bugfix: internally generated messages had "FROMHOST" property not set
+- bugfix: continue parsing if tag is oversize (discard oversize part) - thanks
+ to mclaughlin77@gmail.com for the patch
+- added $HHOUR and $QHOUR system properties - can be used for half- and
+ quarter-hour logfile rotation
+---------------------------------------------------------------------------
+Version 2.0.3 STABLE (rgerhards), 2008-03-12
+- bugfix: setting for $EscapeControlCharactersOnReceive was not
+ properly initialized
+- bugfix: resolved potential segfault condition on HUP (extremely
+ unlikely to happen in practice), for details see tracker:
+ http://bugzilla.adiscon.com/show_bug.cgi?id=38
+- improved the man pages a bit - thanks to Michael Biebl for the patch
+- bugfix: not properly initialized data could cause several segfaults if
+ there were errors in the config file - thanks to varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 2.0.2 STABLE (rgerhards), 2008-02-12
+- fixed a bug that could cause invalid string handling via strerror_r
+ varmojfekoj provided the patch - many thanks!
+- added x-info field to rsyslogd startup/shutdown message. Hopefully
+ points users to right location for further info (many don't even know
+ they run rsyslog ;))
+- bugfix: suspended actions were not always properly resumed
+ varmojfekoj provided the patch - many thanks!
+- bugfix: errno could be changed during mark processing, leading to
+ invalid error messages when processing inputs. Thank to varmojfekoj for
+ pointing out this problem.
+- bugfix: trailing ":" of tag was lost while parsing legacy syslog messages
+ without timestamp - thanks to Anders Blomdell for providing a patch!
+- bugfix (doc): misspelled config directive, invalid signal info
+- applied some doc fixes from Michel Biebl and cleaned up some no longer
+ needed files suggested by him
+- cleaned up stringbuf.c to fix an annoyance reported by Anders Blomdell
+- fixed bug that caused invalid treatment of tabs (HT) in rsyslog.conf
+---------------------------------------------------------------------------
+Version 2.0.1 STABLE (rgerhards), 2008-01-24
+- fixed a bug in integer conversion - but this function was never called,
+ so it is not really a useful bug fix ;)
+- fixed a bug with standard template definitions (not a big deal) - thanks
+ to varmojfekoj for spotting it
+- fixed a bug that caused a potential hang in file and fwd output module
+ varmojfekoj provided the patch - many thanks!
+---------------------------------------------------------------------------
+Version 2.0.0 STABLE (rgerhards), 2008-01-02
+- re-release of 1.21.2 as STABLE with no modifications except some
+ doc updates
+---------------------------------------------------------------------------
+Version 1.21.2 (rgerhards), 2007-12-28
+- created a gss-api output module. This keeps GSS-API code and
+ TCP/UDP code separated. It is also important for forward-
+ compatibility with v3. Please note that this change breaks compatibility
+ with config files created for 1.21.0 and 1.21.1 - this was considered
+ acceptable.
+- fixed an error in forwarding retry code (could lead to message corruption
+ but surfaced very seldom)
+- increased portability for older platforms (AI_NUMERICSERV moved)
+- removed socket leak in omfwd.c
+- cross-platform patch for GSS-API compile problem on some platforms
+ thanks to darix for the patch!
+---------------------------------------------------------------------------
+Version 1.21.1 (rgerhards), 2007-12-23
+- small doc fix for $IncludeConfig
+- fixed a bug in llDestroy()
+- bugfix: fixing memory leak when message queue is full and during
+ parsing. Thanks to varmojfekoj for the patch.
+- bugfix: when compiled without network support, unix sockets were
+ not properly closed
+- bugfix: memory leak in cfsysline.c/doGetWord() fixed
+---------------------------------------------------------------------------
+Version 1.21.0 (rgerhards), 2007-12-19
+- GSS-API support for syslog/TCP connections was added. Thanks to
+ varmojfekoj for providing the patch with this functionality
+- code cleanup
+- enhanced $IncludeConfig directive to support wildcard filenames
+- changed some multithreading synchronization
+---------------------------------------------------------------------------
+Version 1.20.1 (rgerhards), 2007-12-12
+- corrected a debug setting that survived release. Caused TCP connections
+ to be retried unnecessarily often.
+- When a hostname ACL was provided and DNS resolution for that name failed,
+ ACL processing was stopped at that point. Thanks to mildew for the patch.
+ Fedora Bugzilla: http://bugzilla.redhat.com/show_bug.cgi?id=395911
+- fixed a potential race condition, see link for details:
+ http://rgerhards.blogspot.com/2007/12/rsyslog-race-condition.html
+ Note that the probability of problems from this bug was very remote
+- fixed a memory leak that happened when PostgreSQL date formats were
+ used
+---------------------------------------------------------------------------
+Version 1.20.0 (rgerhards), 2007-12-07
+- an output module for postgres databases has been added. Thanks to
+ sur5r for contributing this code
+- unloading dynamic modules has been cleaned up, we now have a
+ real implementation and not just a dummy "good enough for the time
+ being".
+- enhanced platform independence - thanks to Bartosz Kuzma and Michael
+ Biebl for their very useful contributions
+- some general code cleanup (including warnings on 64 platforms, only)
+---------------------------------------------------------------------------
+Version 1.19.12 (rgerhards), 2007-12-03
+- cleaned up the build system (thanks to Michael Biebl for the patch)
+- fixed a bug where ommysql was still not compiled with -pthread option
+---------------------------------------------------------------------------
+Version 1.19.11 (rgerhards), 2007-11-29
+- applied -pthread option to build when building for multi-threading mode
+ hopefully solves an issue with segfaulting
+---------------------------------------------------------------------------
+Version 1.19.10 (rgerhards), 2007-10-19
+- introduced the new ":modulename:" syntax for calling module actions
+ in selector lines; modified ommysql to support it. This is primarily
+ an aid for further modules and a prerequisite to actually allow third
+ party modules to be created.
+- minor fix in slackware startup script, "-r 0" is now "-r0"
+- updated rsyslogd doc set man page; now in html format
+- undid creation of a separate thread for the main loop -- this did not
+ turn out to be needed or useful, so reduce complexity once again.
+- added doc fixes provided by Michael Biebl - thanks
+---------------------------------------------------------------------------
+Version 1.19.9 (rgerhards), 2007-10-12
+- now packaging system which again contains all components in a single
+ tarball
+- modularized main() a bit more, resulting in less complex code
+- experimentally added an additional thread - will see if that affects
+ the segfault bug we experience on some platforms. Note that this change
+ is scheduled to be removed again later.
+---------------------------------------------------------------------------
+Version 1.19.8 (rgerhards), 2007-09-27
+- improved repeated message processing
+- applied patch provided by varmojfekoj to support building ommysql
+ in its own way (now also resides in a plugin subdirectory);
+ ommysql is now a separate package
+- fixed a bug in cvthname() that lead to message loss if part
+ of the source hostname would have been dropped
+- created some support for distributing ommysql together with the
+ main rsyslog package. I need to re-think it in the future, but
+ for the time being the current mode is best. I now simply include
+ one additional tarball for ommysql inside the main distribution.
+ I look forward to user feedback on how this should be done best. In the
+ long term, a separate project should be spawend for ommysql, but I'd
+ like to do that only after the plugin interface is fully stable (what
+ it is not yet).
+---------------------------------------------------------------------------
+Version 1.19.7 (rgerhards), 2007-09-25
+- added code to handle situations where senders send us messages ending with
+ a NUL character. It is now simply removed. This also caused trailing LF
+ reduction to fail, when it was followed by such a NUL. This is now also
+ handled.
+- replaced some non-thread-safe function calls by their thread-safe
+ counterparts
+- fixed a minor memory leak that occurred when the %APPNAME% property was
+ used (I think nobody used that in practice)
+- fixed a bug that caused signal handlers in cvthname() not to be restored when
+ a malicious pointer record was detected and processing of the message been
+ stopped for that reason (this should be really rare and can not be related
+ to the segfault bug we are hunting).
+- fixed a bug in cvthname that lead to passing a wrong parameter - in
+ practice, this had no impact.
+- general code cleanup (e.g. compiler warnings, comments)
+---------------------------------------------------------------------------
+Version 1.19.6 (rgerhards), 2007-09-11
+- applied patch by varmojfekoj to change signal handling to the new
+ sigaction API set (replacing the depreciated signal() calls and its
+ friends.
+- fixed a bug that in --enable-debug mode caused an assertion when the
+ discard action was used
+- cleaned up compiler warnings
+- applied patch by varmojfekoj to FIX a bug that could cause
+ segfaults if empty properties were processed using modifying
+ options (e.g. space-cc, drop-cc)
+- fixed man bug: rsyslogd supports -l option
+---------------------------------------------------------------------------
+Version 1.19.5 (rgerhards), 2007-09-07
+- changed part of the CStr interface so that better error tracking
+ is provided and the calling sequence is more intuitive (there were
+ invalid calls based on a too-weird interface)
+- (hopefully) fixed some remaining bugs rooted in wrong use of
+ the CStr class. These could lead to program abort.
+- applied patch by varmojfekoj two fix two potential segfault situations
+- added $ModDir config directive
+- modified $ModLoad so that an absolute path may be specified as
+ module name (e.g. /rsyslog/ommysql.so)
+---------------------------------------------------------------------------
+Version 1.19.4 (rgerhards/varmojfekoj), 2007-09-04
+- fixed a number of small memory leaks - thanks varmojfekoj for patching
+- fixed an issue with CString class that could lead to rsyslog abort
+ in tplToString() - thanks varmojfekoj for patching
+- added a man-version of the config file documentation - thanks to Michel
+ Samia for providing the man file
+- fixed bug: a template like this causes an infinite loop:
+ $template opts,"%programname:::a,b%"
+ thanks varmojfekoj for the patch
+- fixed bug: case changing options crash freeing the string pointer
+ because they modify it: $template opts2,"%programname::1:lowercase%"
+ thanks varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 1.19.3 (mmeckelein/varmojfekoj), 2007-08-31
+- small mem leak fixed (after calling parseSelectorAct) - Thx varmojfekoj
+- documentation section "Regular File" und "Blocks" updated
+- solved an issue with dynamic file generation - Once again many thanks
+ to varmojfekoj
+- the negative selector for program name filter (Blocks) does not work as
+ expected - Thanks varmojfekoj for patching
+- added forwarding information to sysklogd (requires special template)
+ to config doc
+---------------------------------------------------------------------------
+Version 1.19.2 (mmeckelein/varmojfekoj), 2007-08-28
+- a specifically formed message caused a segfault - Many thanks varmojfekoj
+ for providing a patch
+- a typo and a weird condition are fixed in msg.c - Thanks again
+ varmojfekoj
+- on file creation the file was always owned by root:root. This is fixed
+ now - Thanks ypsa for solving this issue
+---------------------------------------------------------------------------
+Version 1.19.1 (mmeckelein), 2007-08-22
+- a bug that caused a high load when a TCP/UDP connection was closed is
+ fixed now - Thanks mildew for solving this issue
+- fixed a bug which caused a segfault on reinit - Thx varmojfekoj for the
+ patch
+- changed the hardcoded module path "/lib/rsyslog" to $(pkglibdir) in order
+ to avoid trouble e.g. on 64 bit platforms (/lib64) - many thanks Peter
+ Vrabec and darix, both provided a patch for solving this issue
+- enhanced the unloading of modules - thanks again varmojfekoj
+- applied a patch from varmojfekoj which fixes various little things in
+ MySQL output module
+---------------------------------------------------------------------------
+Version 1.19.0 (varmojfekoj/rgerhards), 2007-08-16
+- integrated patch from varmojfekoj to make the mysql module a loadable one
+ many thanks for the patch, MUCH appreciated
+---------------------------------------------------------------------------
+Version 1.18.2 (rgerhards), 2007-08-13
+- fixed a bug in outchannel code that caused templates to be incorrectly
+ parsed
+- fixed a bug in ommysql that caused a wrong ";template" missing message
+- added some code for unloading modules; not yet fully complete (and we do
+ not yet have loadable modules, so this is no problem)
+- removed debian subdirectory by request of a debian packager (this is a special
+ subdir for debian and there is also no point in maintaining it when there
+ is a debian package available - so I gladly did this) in some cases
+- improved overall doc quality (some pages were quite old) and linked to
+ more of the online resources.
+- improved /contrib/delete_mysql script by adding a host option and some
+ other minor modifications
+---------------------------------------------------------------------------
+Version 1.18.1 (rgerhards), 2007-08-08
+- applied a patch from varmojfekoj which solved a potential segfault
+ of rsyslogd on HUP
+- applied patch from Michel Samia to fix compilation when the pthreads
+ feature is disabled
+- some code cleanup (moved action object to its own file set)
+- add config directive $MainMsgQueueSize, which now allows one to configure the
+ queue size dynamically
+- all compile-time settings are now shown in rsyslogd -v, not just the
+ active ones
+- enhanced performance a little bit more
+- added config file directive $ActionResumeInterval
+- fixed a bug that prevented compilation under debian sid
+- added a contrib directory for user-contributed useful things
+---------------------------------------------------------------------------
+Version 1.18.0 (rgerhards), 2007-08-03
+- rsyslog now supports fallback actions when an action did not work. This
+ is a great feature e.g. for backup database servers or backup syslog
+ servers
+- modified rklogd to only change the console log level if -c is specified
+- added feature to use multiple actions inside a single selector
+- implemented $ActionExecOnlyWhenPreviousIsSuspended config directive
+- error messages during startup are now spit out to the configured log
+ destinations
+---------------------------------------------------------------------------
+Version 1.17.6 (rgerhards), 2007-08-01
+- continued to work on output module modularization - basic stage of
+ this work is now FINISHED
+- fixed bug in OMSRcreate() - always returned SR_RET_OK
+- fixed a bug that caused ommysql to always complain about missing
+ templates
+- fixed a mem leak in OMSRdestruct - freeing the object itself was
+ forgotten - thanks to varmojfekoj for the patch
+- fixed a memory leak in syslogd/init() that happened when the config
+ file could not be read - thanks to varmojfekoj for the patch
+- fixed insufficient memory allocation in addAction() and its helpers.
+ The initial fix and idea was developed by mildew, I fine-tuned
+ it a bit. Thanks a lot for the fix, I'd probably had pulled out my
+ hair to find the bug...
+- added output of config file line number when a parsing error occurred
+- fixed bug in objomsr.c that caused program to abort in debug mode with
+ an invalid assertion (in some cases)
+- fixed a typo that caused the default template for MySQL to be wrong.
+ thanks to mildew for catching this.
+- added configuration file command $DebugPrintModuleList and
+ $DebugPrintCfSysLineHandlerList
+- fixed an invalid value for the MARK timer - unfortunately, there was
+ a testing aid left in place. This resulted in quite frequent MARK messages
+- added $IncludeConfig config directive
+- applied a patch from mildew to prevent rsyslogd from freezing under heavy
+ load. This could happen when the queue was full. Now, we drop messages
+ but rsyslogd remains active.
+---------------------------------------------------------------------------
+Version 1.17.5 (rgerhards), 2007-07-30
+- continued to work on output module modularization
+- fixed a missing file bug - thanks to Andrea Montanari for reporting
+ this problem
+- fixed a problem with shutting down the worker thread and freeing the
+ selector_t list - this caused messages to be lost, because the
+ message queue was not properly drained before the selectors got
+ destroyed.
+---------------------------------------------------------------------------
+Version 1.17.4 (rgerhards), 2007-07-27
+- continued to work on output module modularization
+- fixed a situation where rsyslogd could create zombie processes
+ thanks to mildew for the patch
+- applied patch from Michel Samia to fix compilation when NOT
+ compiled for pthreads
+---------------------------------------------------------------------------
+Version 1.17.3 (rgerhards), 2007-07-25
+- continued working on output module modularization
+- fixed a bug that caused rsyslogd to segfault on exit (and
+ probably also on HUP), when there was an unsent message in a selector
+ that required forwarding and the dns lookup failed for that selector
+ (yes, it was pretty unlikely to happen;))
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- fixed a memory leak in config file parsing and die()
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- rsyslogd now checks on startup if it is capable to perform any work
+ at all. If it cant, it complains and terminates
+ thanks to Michel Samia for providing the patch!
+- fixed a small memory leak when HUPing syslogd. The allowed sender
+ list now gets freed. thanks to mildew for the patch.
+- changed the way error messages in early startup are logged. They
+ now do no longer use the syslogd code directly but are rather
+ send to stderr.
+---------------------------------------------------------------------------
+Version 1.17.2 (rgerhards), 2007-07-23
+- made the port part of the -r option optional. Needed for backward
+ compatibility with sysklogd
+- replaced system() calls with something more reasonable. Please note that
+ this might break compatibility with some existing configuration files.
+ We accept this in favor of the gained security.
+- removed a memory leak that could occur if timegenerated was used in
+ RFC 3164 format in templates
+- did some preparation in msg.c for advanced multithreading - placed the
+ hooks, but not yet any active code
+- worked further on modularization
+- added $ModLoad MySQL (dummy) config directive
+- added DropTrailingLFOnReception config directive
+---------------------------------------------------------------------------
+Version 1.17.1 (rgerhards), 2007-07-20
+- fixed a bug that caused make install to install rsyslogd and rklogd under
+ the wrong names
+- fixed bug that caused $AllowedSenders to handle IPv6 scopes incorrectly;
+ also fixed but that could garble $AllowedSender wildcards. Thanks to
+ mildew@gmail.com for the patch
+- minor code cleanup - thanks to Peter Vrabec for the patch
+- fixed minimal memory leak on HUP (caused by templates)
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- fixed another memory leak on HUPing and on exiting rsyslogd
+ again thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- code cleanup (removed compiler warnings)
+- fixed portability bug in configure.ac - thanks to Bartosz Kuźma for patch
+- moved msg object into its own file set
+- added the capability to continue trying to write log files when the
+ file system is full. Functionality based on patch by Martin Schulze
+ to sysklogd package.
+---------------------------------------------------------------------------
+Version 1.17.0 (RGer), 2007-07-17
+- added $RepeatedLineReduction config parameter
+- added $EscapeControlCharactersOnReceive config parameter
+- added $ControlCharacterEscapePrefix config parameter
+- added $DirCreateMode config parameter
+- added $CreateDirs config parameter
+- added $DebugPrintTemplateList config parameter
+- added $ResetConfigVariables config parameter
+- added $FileOwner config parameter
+- added $FileGroup config parameter
+- added $DirOwner config parameter
+- added $DirGroup config parameter
+- added $FailOnChownFailure config parameter
+- added regular expression support to the filter engine
+ thanks to Michel Samia for providing the patch!
+- enhanced $AllowedSender functionality. Credits to mildew@gmail.com for
+ the patch doing that
+ - added IPv6 support
+ - allowed DNS hostnames
+ - allowed DNS wildcard names
+- added new option $DropMsgsWithMaliciousDnsPTRRecords
+- added autoconf so that rfc3195d, rsyslogd and klogd are stored to /sbin
+- added capability to auto-create directories with dynaFiles
+---------------------------------------------------------------------------
+Version 1.16.0 (RGer/Peter Vrabec), 2007-07-13 - The Friday, 13th Release ;)
+- build system switched to autotools
+- removed SYSV preprocessor macro use, replaced with autotools equivalents
+- fixed a bug that caused rsyslogd to segfault when TCP listening was
+ disabled and it terminated
+- added new properties "syslogfacility-text" and "syslogseverity-text"
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- added the -x option to disable hostname dns resolution
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- begun to better modularize syslogd.c - this is an ongoing project; moved
+ type definitions to a separate file
+- removed some now-unused fields from struct filed
+- move file size limit fields in struct field to the "right spot" (the file
+ writing part of the union - f_un.f_file)
+- subdirectories linux and solaris are no longer part of the distribution
+ package. This is not because we cease support for them, but there are no
+ longer any files in them after the move to autotools
+---------------------------------------------------------------------------
+Version 1.15.1 (RGer), 2007-07-10
+- fixed a bug that caused a dynaFile selector to stall when there was
+ an open error with one file
+- improved template processing for dynaFiles; templates are now only
+ looked up during initialization - speeds up processing
+- optimized memory layout in struct filed when compiled with MySQL
+ support
+- fixed a bug that caused compilation without SYSLOG_INET to fail
+- re-enabled the "last message repeated n times" feature. This
+ feature was not taken care of while rsyslogd evolved from sysklogd
+ and it was more or less defunct. Now it is fully functional again.
+- added system properties: $NOW, $YEAR, $MONTH, $DAY, $HOUR, $MINUTE
+- fixed a bug in iovAsString() that caused a memory leak under stress
+ conditions (most probably memory shortage). This was unlikely to
+ ever happen, but it doesn't hurt doing it right
+- cosmetic: defined type "uchar", change all unsigned chars to uchar
+---------------------------------------------------------------------------
+Version 1.15.0 (RGer), 2007-07-05
+- added ability to dynamically generate file names based on templates
+ and thus properties. This was a much-requested feature. It makes
+ life easy when it e.g. comes to splitting files based on the sender
+ address.
+- added $umask and $FileCreateMode config file directives
+- applied a patch from Bartosz Kuzma to compile cleanly under NetBSD
+- checks for extra (unexpected) characters in system config file lines
+ have been added
+- added IPv6 documentation - was accidentally missing from CVS
+- begun to change char to unsigned char
+---------------------------------------------------------------------------
+Version 1.14.2 (RGer), 2007-07-03
+** this release fixes all known nits with IPv6 **
+- restored capability to do /etc/service lookup for "syslog"
+ service when -r 0 was given
+- documented IPv6 handling of syslog messages
+- integrate patch from Bartosz Kuźma to make rsyslog compile under
+ Solaris again (the patch replaced a strndup() call, which is not
+ available under Solaris
+- improved debug logging when waiting on select
+- updated rsyslogd man page with new options (-46A)
+---------------------------------------------------------------------------
+Version 1.14.1 (RGer/Peter Vrabec), 2007-06-29
+- added Peter Vrabec's patch for IPv6 TCP
+- prefixed all messages send to stderr in rsyslogd with "rsyslogd: "
+---------------------------------------------------------------------------
+Version 1.14.0 (RGer/Peter Vrabec), 2007-06-28
+- Peter Vrabec provided IPv6 for rsyslog, so we are now IPv6 enabled
+ IPv6 Support is currently for UDP only, TCP is to come soon.
+ AllowedSender configuration does not yet work for IPv6.
+- fixed code in iovCreate() that broke C's strict aliasing rules
+- fixed some char/unsigned char differences that forced the compiler
+ to spit out warning messages
+- updated the Red Hat init script to fix a known issue (thanks to
+ Peter Vrabec)
+---------------------------------------------------------------------------
+Version 1.13.5 (RGer), 2007-06-22
+- made the TCP session limit configurable via command line switch
+ now -t <port>,<max sessions>
+- added man page for rklogd(8) (basically a copy from klogd, but now
+ there is one...)
+- fixed a bug that caused internal messages (e.g. rsyslogd startup) to
+ appear without a tag.
+- removed a minor memory leak that occurred when TAG processing requalified
+ a HOSTNAME to be a TAG (and a TAG already was set).
+- removed potential small memory leaks in MsgSet***() functions. There
+ would be a leak if a property was re-set, something that happened
+ extremely seldom.
+---------------------------------------------------------------------------
+Version 1.13.4 (RGer), 2007-06-18
+- added a new property "PRI-text", which holds the PRI field in
+ textual form (e.g. "syslog.info")
+- added alias "syslogseverity" for "syslogpriority", which is a
+ misleading property name that needs to stay for historical
+ reasons (and backward-compatibility)
+- added doc on how to record PRI value in log file
+- enhanced signal handling in klogd, including removal of an unsafe
+ call to the logging system during signal handling
+---------------------------------------------------------------------------
+Version 1.13.3 (RGer), 2007-06-15
+- create a version of syslog.c from scratch. This is now
+ - highly optimized for rsyslog
+ - removes an incompatible license problem as the original
+ version had a BSD license with advertising clause
+ - fixed in the regard that rklogd will continue to work when
+ rsyslogd has been restarted (the original version, as well
+ as sysklogd, will remain silent then)
+ - solved an issue with an extra NUL char at message end that the
+ original version had
+- applied some changes to klogd to care for the new interface
+- fixed a bug in syslogd.c which prevented compiling under debian
+---------------------------------------------------------------------------
+Version 1.13.2 (RGer), 2007-06-13
+- lib order in makefile patched to facilitate static linking - thanks
+ to Bennett Todd for providing the patch
+- Integrated a patch from Peter Vrabec (pvrabec@redhat.com):
+ - added klogd under the name of rklogd (remove dependency on
+ original sysklogd package
+ - createDB.sql now in UTF
+ - added additional config files for use on Red Hat
+---------------------------------------------------------------------------
+Version 1.13.1 (RGer), 2007-02-05
+- changed the listen backlog limit to a more reasonable value based on
+ the maximum number of TCP connections configured (10% + 5) - thanks to Guy
+ Standen for the hint (actually, the limit was 5 and that was a
+ left-over from early testing).
+- fixed a bug in makefile which caused DB-support to be disabled when
+ NETZIP support was enabled
+- added the -e option to allow transmission of every message to remote
+ hosts (effectively turns off duplicate message suppression)
+- (somewhat) improved memory consumption when compiled with MySQL support
+- looks like we fixed an incompatibility with MySQL 5.x and above software
+ At least in one case, the remote server name was destroyed, leading to
+ a connection failure. The new, improved code does not have this issue and
+ so we see this as solved (the new code is generally somewhat better, so
+ there is a good chance we fixed this incompatibility).
+---------------------------------------------------------------------------
+Version 1.13.0 (RGer), 2006-12-19
+- added '$' as ToPos property replacer specifier - means "up to the
+ end of the string"
+- property replacer option "escape-cc", "drop-cc" and "space-cc" added
+- changed the handling of \0 characters inside syslog messages. We now
+ consistently escape them to "#000". This is somewhat recommended in
+ the draft-ietf-syslog-protocol-19 draft. While the real recommendation
+ is to not escape any characters at all, we can not do this without
+ considerable modification of the code. So we escape it to "#000", which
+ is consistent with a sample found in the Internet-draft.
+- removed message glue logic (see printchopped() comment for details)
+ Also caused removal of parts table and thus some improvements in
+ memory usage.
+- changed the default MAXLINE to 2048 to take care of recent syslog
+ standardization efforts (can easily be changed in syslogd.c)
+- added support for byte-counted TCP syslog messages (much like
+ syslog-transport-tls-05 Internet Draft). This was necessary to
+ support compression over TCP.
+- added support for receiving compressed syslog messages
+- added support for sending compressed syslog messages
+- fixed a bug where the last message in a syslog/tcp stream was
+ lost if it was not properly terminated by a LF character
+---------------------------------------------------------------------------
+Version 1.12.3 (RGer), 2006-10-04
+- implemented some changes to support Solaris (but support is not
+ yet complete)
+- commented out (via #if 0) some methods that are currently not being use
+ but should be kept for further us
+- added (interim) -u 1 option to turn off hostname and tag parsing
+- done some modifications to better support Fedora
+- made the field delimiter inside property replace configurable via
+ template
+- fixed a bug in property replacer: if fields were used, the delimitor
+ became part of the field. Up until now, this was barely noticeable as
+ the delimiter as TAB only and thus invisible to a human. With other
+ delimiters available now, it quickly showed up. This bug fix might cause
+ some grief to existing installations if they used the extra TAB for
+ whatever reasons - sorry folks... Anyhow, a solution is easy: just add
+ a TAB character constant into your template. Thus, there has no attempt
+ been made to do this in a backwards-compatible way.
+---------------------------------------------------------------------------
+Version 1.12.2 (RGer), 2006-02-15
+- fixed a bug in the RFC 3339 date formatter. An extra space was added
+ after the actual timestamp
+- added support for providing high-precision RFC3339 timestamps for
+ (rsyslogd-)internally-generated messages
+- very (!) experimental support for syslog-protocol internet draft
+ added (the draft is experimental, the code is solid ;))
+- added support for field-extracting in the property replacer
+- enhanced the legacy-syslog parser so that it can interpret messages
+ that do not contain a TIMESTAMP
+- fixed a bug that caused the default socket (usually /dev/log) to be
+ opened even when -o command line option was given
+- fixed a bug in the Debian sample startup script - it caused rsyslogd
+ to listen to remote requests, which it shouldn't by default
+---------------------------------------------------------------------------
+Version 1.12.1 (RGer), 2005-11-23
+- made multithreading work with BSD. Some signal-handling needed to be
+ restructured. Also, there might be a slight delay of up to 10 seconds
+ when huping and terminating rsyslogd under BSD
+- fixed a bug where a NULL-pointer was passed to printf() in logmsg().
+- fixed a bug during "make install" where rc3195d was not installed
+ Thanks to Bennett Todd for spotting this.
+- fixed a bug where rsyslogd dumped core when no TAG was found in the
+ received message
+- enhanced message parser so that it can deal with missing hostnames
+ in many cases (may not be totally fail-safe)
+- fixed a bug where internally-generated messages did not have the correct
+ TAG
+---------------------------------------------------------------------------
+Version 1.12.0 (RGer), 2005-10-26
+- moved to a multi-threaded design. single-threading is still optionally
+ available. Multi-threading is experimental!
+- fixed a potential race condition. In the original code, marking was done
+ by an alarm handler, which could lead to all sorts of bad things. This
+ has been changed now. See comments in syslogd.c/domark() for details.
+- improved debug output for property-based filters
+- not a code change, but: I have checked all exit()s to make sure that
+ none occurs once rsyslogd has started up. Even in unusual conditions
+ (like low-memory conditions) rsyslogd somehow remains active. Of course,
+ it might loose a message or two, but at least it does not abort and it
+ can also recover when the condition no longer persists.
+- fixed a bug that could cause loss of the last message received
+ immediately before rsyslogd was terminated.
+- added comments on thread-safety of global variables in syslogd.c
+- fixed a small bug: spurios printf() when TCP syslog was used
+- fixed a bug that causes rsyslogd to dump core on termination when one
+ of the selector lines did not receive a message during the run (very
+ unlikely)
+- fixed an one-too-low memory allocation in the TCP sender. Could result
+ in rsyslogd dumping core.
+- fixed a bug with regular expression support (thanks to Andres Riancho)
+- a little bit of code restructuring (especially main(), which was
+ horribly large)
+---------------------------------------------------------------------------
+Version 1.11.1 (RGer), 2005-10-19
+- support for BSD-style program name and host blocks
+- added a new property "programname" that can be used in templates
+- added ability to specify listen port for rfc3195d
+- fixed a bug that rendered the "startswith" comparison operation
+ unusable.
+- changed more functions to "static" storage class to help compiler
+ optimize (should have been static in the first place...)
+- fixed a potential memory leak in the string buffer class destructor.
+ As the destructor was previously never called, the leak did not actually
+ appear.
+- some internal restructuring in anticipation/preparation of minimal
+ multi-threading support
+- rsyslogd still shares some code with the sysklogd project. Some patches
+ for this shared code have been brought over from the sysklogd CVS.
+---------------------------------------------------------------------------
+Version 1.11.0 (RGer), 2005-10-12
+- support for receiving messages via RFC 3195; added rfc3195d for that
+ purpose
+- added an additional guard to prevent rsyslogd from aborting when the
+ 2gb file size limit is hit. While a user can configure rsyslogd to
+ handle such situations, it would abort if that was not done AND large
+ file support was not enabled (ok, this is hopefully an unlikely scenario)
+- fixed a bug that caused additional Unix domain sockets to be incorrectly
+ processed - could lead to message loss in extreme cases
+---------------------------------------------------------------------------
+Version 1.10.2 (RGer), 2005-09-27
+- added comparison operations in property-based filters:
+ * isequal
+ * startswith
+- added ability to negate all property-based filter comparison operations
+ by adding a !-sign right in front of the operation name
+- added the ability to specify remote senders for UDP and TCP
+ received messages. Allows to block all but well-known hosts
+- changed the $-config line directives to be case-INsensitive
+- new command line option -w added: "do not display warnings if messages
+ from disallowed senders are received"
+- fixed a bug that caused rsyslogd to dump core when the compare value
+ was not quoted in property-based filters
+- fixed a bug in the new CStr compare function which lead to invalid
+ results (fortunately, this function was not yet used widely)
+- added better support for "debugging" rsyslog.conf property filters
+ (only if -d switch is given)
+- changed some function definitions to static, which eventually enables
+ some compiler optimizations
+- fixed a bug in MySQL code; when a SQL error occurred, rsyslogd could
+ run in a tight loop. This was due to invalid sequence of error reporting
+ and is now fixed.
+---------------------------------------------------------------------------
+Version 1.10.1 (RGer), 2005-09-23
+- added the ability to execute a shell script as an action.
+ Thanks to Bjoern Kalkbrenner for providing the code!
+- fixed a bug in the MySQL code; due to the bug the automatic one-time
+ retry after an error did not happen - this lead to error message in
+ cases where none should be seen (e.g. after a MySQL restart)
+- fixed a security issue with SQL-escaping in conjunction with
+ non-(SQL-)standard MySQL features.
+---------------------------------------------------------------------------
+Version 1.10.0 (RGer), 2005-09-20
+ REMINDER: 1.10 is the first unstable version if the 1.x series!
+- added the capability to filter on any property in selector lines
+ (not just facility and priority)
+- changed stringbuf into a new counted string class
+- added support for a "discard" action. If a selector line with
+ discard (~ character) is found, no selector lines *after* that
+ line will be processed.
+- thanks to Andres Riancho, regular expression support has been
+ added to the template engine
+- added the FROMHOST property in the template processor, which could
+ previously not be obtained. Thanks to Cristian Testa for pointing
+ this out and even providing a fix.
+- added display of compile-time options to -v output
+- performance improvement for production build - made some checks
+ to happen only during debug mode
+- fixed a problem with compiling on SUSE and - while doing so - removed
+ the socket call to set SO_BSDCOMPAT in cases where it is obsolete.
+---------------------------------------------------------------------------
+Version 1.0.4 (RGer), 2006-02-01
+- a small but important fix: the tcp receiver had two forgotten printf's
+ in it that caused a lot of unnecessary output to stdout. This was
+ important enough to justify a new release
+---------------------------------------------------------------------------
+Version 1.0.3 (RGer), 2005-11-14
+- added an additional guard to prevent rsyslogd from aborting when the
+ 2gb file size limit is hit. While a user can configure rsyslogd to
+ handle such situations, it would abort if that was not done AND large
+ file support was not enabled (ok, this is hopefully an unlikely scenario)
+- fixed a bug that caused additional Unix domain sockets to be incorrectly
+ processed - could lead to message loss in extreme cases
+- applied some patches available from the sysklogd project to code
+ shared from there
+- fixed a bug that causes rsyslogd to dump core on termination when one
+ of the selector lines did not receive a message during the run (very
+ unlikely)
+- fixed an one-too-low memory allocation in the TCP sender. Could result
+ in rsyslogd dumping core.
+- fixed a bug in the TCP sender that caused the retry logic to fail
+ after an error or receiver overrun
+- fixed a bug in init() that could lead to dumping core
+- fixed a bug that could lead to dumping core when no HOSTNAME or no TAG
+ was present in the syslog message
+---------------------------------------------------------------------------
+Version 1.0.2 (RGer), 2005-10-05
+- fixed an issue with MySQL error reporting. When an error occurred,
+ the MySQL driver went into an endless loop (at least in most cases).
+---------------------------------------------------------------------------
+Version 1.0.1 (RGer), 2005-09-23
+- fixed a security issue with SQL-escaping in conjunction with
+ non-(SQL-)standard MySQL features.
+---------------------------------------------------------------------------
+Version 1.0.0 (RGer), 2005-09-12
+- changed install doc to cover daily cron scripts - a trouble source
+- added rc script for slackware (provided by Chris Elvidge - thanks!)
+- fixed a really minor bug in usage() - the -r option was still
+ reported as without the port parameter
+---------------------------------------------------------------------------
+Version 0.9.8 (RGer), 2005-09-05
+- made startup and shutdown message more consistent and included the
+ pid, so that they can be easier correlated. Used syslog-protocol
+ structured data format for this purpose.
+- improved config info in startup message, now tells not only
+ if it is listening remote on udp, but also for tcp. Also includes
+ the port numbers. The previous startup message was misleading, because
+ it did not say "remote reception" if rsyslogd was only listening via
+ tcp (but not via udp).
+- added a "how can you help" document to the doc set
+---------------------------------------------------------------------------
+Version 0.9.7 (RGer), 2005-08-15
+- some of the previous doc files (like INSTALL) did not properly
+ reflect the changes to the build process and the new doc. Fixed
+ that.
+- changed syslogd.c so that when compiled without database support,
+ an error message is displayed when a database action is detected
+ in the config file (previously this was used as an user rule ;))
+- fixed a bug in the os-specific Makefiles which caused MySQL
+ support to not be compiled, even if selected
+---------------------------------------------------------------------------
+Version 0.9.6 (RGer), 2005-08-09
+- greatly enhanced documentation. Now available in html format in
+ the "doc" folder and FreeBSD. Finally includes an install howto.
+- improved MySQL error messages a little - they now show up as log
+ messages, too (formerly only in debug mode)
+- added the ability to specify the listen port for udp syslog.
+ WARNING: This introduces an incompatibility. Formerly, udp
+ syslog was enabled by the -r command line option. Now, it is
+ "-r [port]", which is consistent with the tcp listener. However,
+ just -r will now return an error message.
+- added sample startup scripts for Debian and FreeBSD
+- added support for easy feature selection in the makefile. Un-
+ fortunately, this also means I needed to spilt the make file
+ for different OS and distros. There are some really bad syntax
+ differences between FreeBSD and Linux make.
+---------------------------------------------------------------------------
+Version 0.9.5 (RGer), 2005-08-01
+- the "semicolon bug" was actually not (fully) solved in 0.9.4. One
+ part of the bug was solved, but another still existed. This one
+ is fixed now, too.
+- the "semicolon bug" actually turned out to be a more generic bug.
+ It appeared whenever an invalid template name was given. With some
+ selector actions, rsyslogd dumped core, with other it "just" had
+ a small resource leak with others all worked well. These anomalies
+ are now fixed. Note that they only appeared during system initialization
+ once the system was running, nothing bad happened.
+- improved error reporting for template errors on startup. They are now
+ shown on the console and the start-up tty. Formerly, they were only
+ visible in debug mode.
+- support for multiple instances of rsyslogd on a single machine added
+- added new option "-o" --> omit local unix domain socket. This option
+ enables rsyslogd NOT to listen to the local socket. This is most
+ helpful when multiple instances of rsyslogd (or rsyslogd and another
+ syslogd) shall run on a single system.
+- added new option "-i <pidfile>" which allows one to specify the pidfile.
+ This is needed when multiple instances of rsyslogd are to be run.
+- the new project home page is now online at www.rsyslog.com
+---------------------------------------------------------------------------
+Version 0.9.4 (RGer), 2005-07-25
+- finally added the TCP sender. It now supports non-blocking mode, no
+ longer disabling message reception during connect. As it is now, it
+ is usable in production. The code could be more sophisticated, but
+ I've kept it short in anticipation of the move to liblogging, which
+ will lead to the removal of the code just written ;)
+- the "exiting on signal..." message still had the "syslogd" name in
+ it. Changed this to "rsyslogd", as we do not have a large user base
+ yet, this should pose no problem.
+- fixed "the semicolon" bug. rsyslogd dumped core if a write-db action
+ was specified but no semicolon was given after the password (an empty
+ template was ok, but the semicolon needed to be present).
+- changed a default for traditional output format. During testing, it
+ was seen that the timestamp written to file in default format was
+ the time of message reception, not the time specified in the TIMESTAMP
+ field of the message itself. Traditionally, the message TIMESTAMP is
+ used and this has been changed now.
+---------------------------------------------------------------------------
+Version 0.9.3 (RGer), 2005-07-19
+- fixed a bug in the message parser. In June, the RFC 3164 timestamp
+ was not correctly parsed (yes, only in June and some other months,
+ see the code comment to learn why...)
+- added the ability to specify the destination port when forwarding
+ syslog messages (both for TCP and UDP)
+- added an very experimental TCP sender (activated by
+ @@machine:port in config). This is not yet for production use. If
+ the receiver is not alive, rsyslogd will wait quite some time until
+ the connection request times out, which most probably leads to
+ loss of incoming messages.
+
+---------------------------------------------------------------------------
+Version 0.9.2 (RGer), around 2005-07-06
+- I intended to change the maxsupported message size to 32k to
+ support IHE - but given the memory inefficiency in the usual use
+ cases, I have not done this. I have, however, included very
+ specific instructions on how to do this in the source code. I have
+ also done some testing with 32k messages, so you can change the
+ max size without taking too much risk.
+- added a syslog/tcp receiver; we now can receive messages via
+ plain tcp, but we can still send only via UDP. The syslog/tcp
+ receiver is the primary enhancement of this release.
+- slightly changed some error messages that contained a spurios \n at
+ the end of the line (which gives empty lines in your log...)
+
+---------------------------------------------------------------------------
+Version 0.9.1 (RGer)
+- fixed code so that it compiles without errors under FreeBSD
+- removed now unused function "allocate_log()" from syslogd.c
+- changed the make file so that it contains more defines for
+ different environments (in the long term, we need a better
+ system for disabling/enabling features...)
+- changed some printf's printing off_t types to %lld and
+ explicit (long long) casts. I tried to figure out the exact type,
+ but did not succeed in this. In the worst case, ultra-large peta-
+ byte files will now display funny informational messages on rollover,
+ something I think we can live with for the neersion 3.11.2 (rgerhards), 2008-02-??
+---------------------------------------------------------------------------
+Version 3.11.1 (rgerhards), 2008-02-12
+- SNMP trap sender added thanks to Andre Lorbach (omsnmp)
+- added input-plugin interface specification in form of a (copy) template
+ input module
+- applied documentation fix by Michael Biebl -- many thanks!
+- bugfix: immark did not have MARK flags set...
+- added x-info field to rsyslogd startup/shutdown message. Hopefully
+ points users to right location for further info (many don't even know
+ they run rsyslog ;))
+- bugfix: trailing ":" of tag was lost while parsing legacy syslog messages
+ without timestamp - thanks to Anders Blomdell for providing a patch!
+- fixed a bug in stringbuf.c related to STRINGBUF_TRIM_ALLOCSIZE, which
+ wasn't supposed to be used with rsyslog. Put a warning message up that
+ tells this feature is not tested and probably not worth the effort.
+ Thanks to Anders Blomdell fro bringing this to our attention
+- somewhat improved performance of string buffers
+- fixed bug that caused invalid treatment of tabs (HT) in rsyslog.conf
+- bugfix: setting for $EscapeControlCharactersOnReceive was not
+ properly initialized
+- clarified usage of space-cc property replacer option
+- improved abort diagnostic handler
+- some initial effort for malloc/free runtime debugging support
+- bugfix: using dynafile actions caused rsyslogd abort
+- fixed minor man errors thanks to Michael Biebl
+---------------------------------------------------------------------------
+Version 3.11.0 (rgerhards), 2008-01-31
+- implemented queued actions
+- implemented simple rate limiting for actions
+- implemented deliberate discarding of lower priority messages over higher
+ priority ones when a queue runs out of space
+- implemented disk quotas for disk queues
+- implemented the $ActionResumeRetryCount config directive
+- added $ActionQueueFilename config directive
+- added $ActionQueueSize config directive
+- added $ActionQueueHighWaterMark config directive
+- added $ActionQueueLowWaterMark config directive
+- added $ActionQueueDiscardMark config directive
+- added $ActionQueueDiscardSeverity config directive
+- added $ActionQueueCheckpointInterval config directive
+- added $ActionQueueType config directive
+- added $ActionQueueWorkerThreads config directive
+- added $ActionQueueTimeoutshutdown config directive
+- added $ActionQueueTimeoutActionCompletion config directive
+- added $ActionQueueTimeoutenQueue config directive
+- added $ActionQueueTimeoutworkerThreadShutdown config directive
+- added $ActionQueueWorkerThreadMinimumMessages config directive
+- added $ActionQueueMaxFileSize config directive
+- added $ActionQueueSaveonShutdown config directive
+- addded $ActionQueueDequeueSlowdown config directive
+- addded $MainMsgQueueDequeueSlowdown config directive
+- bugfix: added forgotten docs to package
+- improved debugging support
+- fixed a bug that caused $MainMsgQueueCheckpointInterval to work incorrectly
+- when a long-running action needs to be cancelled on shutdown, the message
+ that was processed by it is now preserved. This finishes support for
+ guaranteed delivery of messages (if the output supports it, of course)
+- fixed bug in output module interface, see
+ http://sourceforge.net/tracker/index.php?func=detail&aid=1881008&group_id=123448&atid=696552
+- changed the ommysql output plugin so that the (lengthy) connection
+ initialization now takes place in message processing. This works much
+ better with the new queued action mode (fast startup)
+- fixed a bug that caused a potential hang in file and fwd output module
+ varmojfekoj provided the patch - many thanks!
+- bugfixed stream class offset handling on 32bit platforms
+---------------------------------------------------------------------------
+Version 3.10.3 (rgerhards), 2008-01-28
+- fixed a bug with standard template definitions (not a big deal) - thanks
+ to varmojfekoj for spotting it
+- run-time instrumentation added
+- implemented disk-assisted queue mode, which enables on-demand disk
+ spooling if the queue's in-memory queue is exhausted
+- implemented a dynamic worker thread pool for processing incoming
+ messages; workers are started and shut down as need arises
+- implemented a run-time instrumentation debug package
+- implemented the $MainMsgQueueSaveOnShutdown config directive
+- implemented the $MainMsgQueueWorkerThreadMinimumMessages config directive
+- implemented the $MainMsgQueueTimeoutWorkerThreadShutdown config directive
+---------------------------------------------------------------------------
+Version 3.10.2 (rgerhards), 2008-01-14
+- added the ability to keep stop rsyslogd without the need to drain
+ the main message queue. In disk queue mode, rsyslog continues to
+ run from the point where it stopped. In case of a system failure, it
+ continues to process messages from the last checkpoint.
+- fixed a bug that caused a segfault on startup when no $WorkDir directive
+ was specified in rsyslog.conf
+- provided more fine-grain control over shutdown timeouts and added a
+ way to specify the enqueue timeout when the main message queue is full
+- implemented $MainMsgQueueCheckpointInterval config directive
+- implemented $MainMsgQueueTimeoutActionCompletion config directive
+- implemented $MainMsgQueueTimeoutEnqueue config directive
+- implemented $MainMsgQueueTimeoutShutdown config directive
+---------------------------------------------------------------------------
+Version 3.10.1 (rgerhards), 2008-01-10
+- implemented the "disk" queue mode. However, it currently is of very
+ limited use, because it does not support persistence over rsyslogd
+ runs. So when rsyslogd is stopped, the queue is drained just as with
+ the in-memory queue modes. Persistent queues will be a feature of
+ the next release.
+- performance-optimized string class, should bring an overall improvement
+- fixed a memory leak in imudp -- thanks to varmojfekoj for the patch
+- fixed a race condition that could lead to a rsyslogd hang when during
+ HUP or termination
+- done some doc updates
+- added $WorkDirectory config directive
+- added $MainMsgQueueFileName config directive
+- added $MainMsgQueueMaxFileSize config directive
+---------------------------------------------------------------------------
+Version 3.10.0 (rgerhards), 2008-01-07
+- implemented input module interface and initial input modules
+- enhanced threading for input modules (each on its own thread now)
+- ability to bind UDP listeners to specific local interfaces/ports and
+ ability to run multiple of them concurrently
+- added ability to specify listen IP address for UDP syslog server
+- license changed to GPLv3
+- mark messages are now provided by loadble module immark
+- rklogd is no longer provided. Its functionality has now been taken over
+ by imklog, a loadable input module. This offers a much better integration
+ into rsyslogd and makes sure that the kernel logger process is brought
+ up and down at the appropriate times
+- enhanced $IncludeConfig directive to support wildcard characters
+ (thanks to Michael Biebl)
+- all inputs are now implemented as loadable plugins
+- enhanced threading model: each input module now runs on its own thread
+- enhanced message queue which now supports different queueing methods
+ (among others, this can be used for performance fine-tuning)
+- added a large number of new configuration directives for the new
+ input modules
+- enhanced multi-threading utilizing a worker thread pool for the
+ main message queue
+- compilation without pthreads is no longer supported
+- much cleaner code due to new objects and removal of single-threading
+ mode
+---------------------------------------------------------------------------
+Version 2.0.1 STABLE (rgerhards), 2008-01-24
+- fixed a bug in integer conversion - but this function was never called,
+ so it is not really a useful bug fix ;)
+- fixed a bug with standard template definitions (not a big deal) - thanks
+ to varmojfekoj for spotting it
+- fixed a bug that caused a potential hang in file and fwd output module
+ varmojfekoj provided the patch - many thanks!
+---------------------------------------------------------------------------
+Version 2.0.0 STABLE (rgerhards), 2008-01-02
+- re-release of 1.21.2 as STABLE with no modifications except some
+ doc updates
+---------------------------------------------------------------------------
+Version 1.21.2 (rgerhards), 2007-12-28
+- created a gss-api output module. This keeps GSS-API code and
+ TCP/UDP code separated. It is also important for forward-
+ compatibility with v3. Please note that this change breaks compatibility
+ with config files created for 1.21.0 and 1.21.1 - this was considered
+ acceptable.
+- fixed an error in forwarding retry code (could lead to message corruption
+ but surfaced very seldom)
+- increased portability for older platforms (AI_NUMERICSERV moved)
+- removed socket leak in omfwd.c
+- cross-platform patch for GSS-API compile problem on some platforms
+ thanks to darix for the patch!
+---------------------------------------------------------------------------
+Version 1.21.1 (rgerhards), 2007-12-23
+- small doc fix for $IncludeConfig
+- fixed a bug in llDestroy()
+- bugfix: fixing memory leak when message queue is full and during
+ parsing. Thanks to varmojfekoj for the patch.
+- bugfix: when compiled without network support, unix sockets were
+ not properly closed
+- bugfix: memory leak in cfsysline.c/doGetWord() fixed
+---------------------------------------------------------------------------
+Version 1.21.0 (rgerhards), 2007-12-19
+- GSS-API support for syslog/TCP connections was added. Thanks to
+ varmojfekoj for providing the patch with this functionality
+- code cleanup
+- enhanced $IncludeConfig directive to support wildcard filenames
+- changed some multithreading synchronization
+---------------------------------------------------------------------------
+Version 1.20.1 (rgerhards), 2007-12-12
+- corrected a debug setting that survived release. Caused TCP connections
+ to be retried unnecessarily often.
+- When a hostname ACL was provided and DNS resolution for that name failed,
+ ACL processing was stopped at that point. Thanks to mildew for the patch.
+ Fedora Bugzilla: http://bugzilla.redhat.com/show_bug.cgi?id=395911
+- fixed a potential race condition, see link for details:
+ http://rgerhards.blogspot.com/2007/12/rsyslog-race-condition.html
+ Note that the probability of problems from this bug was very remote
+- fixed a memory leak that happened when PostgreSQL date formats were
+ used
+---------------------------------------------------------------------------
+Version 1.20.0 (rgerhards), 2007-12-07
+- an output module for postgres databases has been added. Thanks to
+ sur5r for contributing this code
+- unloading dynamic modules has been cleaned up, we now have a
+ real implementation and not just a dummy "good enough for the time
+ being".
+- enhanced platform independence - thanks to Bartosz Kuzma and Michael
+ Biebl for their very useful contributions
+- some general code cleanup (including warnings on 64 platforms, only)
+---------------------------------------------------------------------------
+Version 1.19.12 (rgerhards), 2007-12-03
+- cleaned up the build system (thanks to Michael Biebl for the patch)
+- fixed a bug where ommysql was still not compiled with -pthread option
+---------------------------------------------------------------------------
+Version 1.19.11 (rgerhards), 2007-11-29
+- applied -pthread option to build when building for multi-threading mode
+ hopefully solves an issue with segfaulting
+---------------------------------------------------------------------------
+Version 1.19.10 (rgerhards), 2007-10-19
+- introduced the new ":modulename:" syntax for calling module actions
+ in selector lines; modified ommysql to support it. This is primarily
+ an aid for further modules and a prerequisite to actually allow third
+ party modules to be created.
+- minor fix in slackware startup script, "-r 0" is now "-r0"
+- updated rsyslogd doc set man page; now in html format
+- undid creation of a separate thread for the main loop -- this did not
+ turn out to be needed or useful, so reduce complexity once again.
+- added doc fixes provided by Michael Biebl - thanks
+---------------------------------------------------------------------------
+Version 1.19.9 (rgerhards), 2007-10-12
+- now packaging system which again contains all components in a single
+ tarball
+- modularized main() a bit more, resulting in less complex code
+- experimentally added an additional thread - will see if that affects
+ the segfault bug we experience on some platforms. Note that this change
+ is scheduled to be removed again later.
+---------------------------------------------------------------------------
+Version 1.19.8 (rgerhards), 2007-09-27
+- improved repeated message processing
+- applied patch provided by varmojfekoj to support building ommysql
+ in its own way (now also resides in a plugin subdirectory);
+ ommysql is now a separate package
+- fixed a bug in cvthname() that lead to message loss if part
+ of the source hostname would have been dropped
+- created some support for distributing ommysql together with the
+ main rsyslog package. I need to re-think it in the future, but
+ for the time being the current mode is best. I now simply include
+ one additional tarball for ommysql inside the main distribution.
+ I look forward to user feedback on how this should be done best. In the
+ long term, a separate project should be spawend for ommysql, but I'd
+ like to do that only after the plugin interface is fully stable (what
+ it is not yet).
+---------------------------------------------------------------------------
+Version 1.19.7 (rgerhards), 2007-09-25
+- added code to handle situations where senders send us messages ending with
+ a NUL character. It is now simply removed. This also caused trailing LF
+ reduction to fail, when it was followed by such a NUL. This is now also
+ handled.
+- replaced some non-thread-safe function calls by their thread-safe
+ counterparts
+- fixed a minor memory leak that occurred when the %APPNAME% property was
+ used (I think nobody used that in practice)
+- fixed a bug that caused signal handlers in cvthname() not to be restored when
+ a malicious pointer record was detected and processing of the message been
+ stopped for that reason (this should be really rare and can not be related
+ to the segfault bug we are hunting).
+- fixed a bug in cvthname that lead to passing a wrong parameter - in
+ practice, this had no impact.
+- general code cleanup (e.g. compiler warnings, comments)
+---------------------------------------------------------------------------
+Version 1.19.6 (rgerhards), 2007-09-11
+- applied patch by varmojfekoj to change signal handling to the new
+ sigaction API set (replacing the depreciated signal() calls and its
+ friends.
+- fixed a bug that in --enable-debug mode caused an assertion when the
+ discard action was used
+- cleaned up compiler warnings
+- applied patch by varmojfekoj to FIX a bug that could cause
+ segfaults if empty properties were processed using modifying
+ options (e.g. space-cc, drop-cc)
+- fixed man bug: rsyslogd supports -l option
+---------------------------------------------------------------------------
+Version 1.19.5 (rgerhards), 2007-09-07
+- changed part of the CStr interface so that better error tracking
+ is provided and the calling sequence is more intuitive (there were
+ invalid calls based on a too-weird interface)
+- (hopefully) fixed some remaining bugs rooted in wrong use of
+ the CStr class. These could lead to program abort.
+- applied patch by varmojfekoj two fix two potential segfault situations
+- added $ModDir config directive
+- modified $ModLoad so that an absolute path may be specified as
+ module name (e.g. /rsyslog/ommysql.so)
+---------------------------------------------------------------------------
+Version 1.19.4 (rgerhards/varmojfekoj), 2007-09-04
+- fixed a number of small memory leaks - thanks varmojfekoj for patching
+- fixed an issue with CString class that could lead to rsyslog abort
+ in tplToString() - thanks varmojfekoj for patching
+- added a man-version of the config file documentation - thanks to Michel
+ Samia for providing the man file
+- fixed bug: a template like this causes an infinite loop:
+ $template opts,"%programname:::a,b%"
+ thanks varmojfekoj for the patch
+- fixed bug: case changing options crash freeing the string pointer
+ because they modify it: $template opts2,"%programname::1:lowercase%"
+ thanks varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 1.19.3 (mmeckelein/varmojfekoj), 2007-08-31
+- small mem leak fixed (after calling parseSelectorAct) - Thx varmojfekoj
+- documentation section "Regular File" und "Blocks" updated
+- solved an issue with dynamic file generation - Once again many thanks
+ to varmojfekoj
+- the negative selector for program name filter (Blocks) does not work as
+ expected - Thanks varmojfekoj for patching
+- added forwarding information to sysklogd (requires special template)
+ to config doc
+---------------------------------------------------------------------------
+Version 1.19.2 (mmeckelein/varmojfekoj), 2007-08-28
+- a specifically formed message caused a segfault - Many thanks varmojfekoj
+ for providing a patch
+- a typo and a weird condition are fixed in msg.c - Thanks again
+ varmojfekoj
+- on file creation the file was always owned by root:root. This is fixed
+ now - Thanks ypsa for solving this issue
+---------------------------------------------------------------------------
+Version 1.19.1 (mmeckelein), 2007-08-22
+- a bug that caused a high load when a TCP/UDP connection was closed is
+ fixed now - Thanks mildew for solving this issue
+- fixed a bug which caused a segfault on reinit - Thx varmojfekoj for the
+ patch
+- changed the hardcoded module path "/lib/rsyslog" to $(pkglibdir) in order
+ to avoid trouble e.g. on 64 bit platforms (/lib64) - many thanks Peter
+ Vrabec and darix, both provided a patch for solving this issue
+- enhanced the unloading of modules - thanks again varmojfekoj
+- applied a patch from varmojfekoj which fixes various little things in
+ MySQL output module
+---------------------------------------------------------------------------
+Version 1.19.0 (varmojfekoj/rgerhards), 2007-08-16
+- integrated patch from varmojfekoj to make the mysql module a loadable one
+ many thanks for the patch, MUCH appreciated
+---------------------------------------------------------------------------
+Version 1.18.2 (rgerhards), 2007-08-13
+- fixed a bug in outchannel code that caused templates to be incorrectly
+ parsed
+- fixed a bug in ommysql that caused a wrong ";template" missing message
+- added some code for unloading modules; not yet fully complete (and we do
+ not yet have loadable modules, so this is no problem)
+- removed debian subdirectory by request of a debian packager (this is a special
+ subdir for debian and there is also no point in maintaining it when there
+ is a debian package available - so I gladly did this) in some cases
+- improved overall doc quality (some pages were quite old) and linked to
+ more of the online resources.
+- improved /contrib/delete_mysql script by adding a host option and some
+ other minor modifications
+---------------------------------------------------------------------------
+Version 1.18.1 (rgerhards), 2007-08-08
+- applied a patch from varmojfekoj which solved a potential segfault
+ of rsyslogd on HUP
+- applied patch from Michel Samia to fix compilation when the pthreads
+ feature is disabled
+- some code cleanup (moved action object to its own file set)
+- add config directive $MainMsgQueueSize, which now allows one to configure the
+ queue size dynamically
+- all compile-time settings are now shown in rsyslogd -v, not just the
+ active ones
+- enhanced performance a little bit more
+- added config file directive $ActionResumeInterval
+- fixed a bug that prevented compilation under debian sid
+- added a contrib directory for user-contributed useful things
+---------------------------------------------------------------------------
+Version 1.18.0 (rgerhards), 2007-08-03
+- rsyslog now supports fallback actions when an action did not work. This
+ is a great feature e.g. for backup database servers or backup syslog
+ servers
+- modified rklogd to only change the console log level if -c is specified
+- added feature to use multiple actions inside a single selector
+- implemented $ActionExecOnlyWhenPreviousIsSuspended config directive
+- error messages during startup are now spit out to the configured log
+ destinations
+---------------------------------------------------------------------------
+Version 1.17.6 (rgerhards), 2007-08-01
+- continued to work on output module modularization - basic stage of
+ this work is now FINISHED
+- fixed bug in OMSRcreate() - always returned SR_RET_OK
+- fixed a bug that caused ommysql to always complain about missing
+ templates
+- fixed a mem leak in OMSRdestruct - freeing the object itself was
+ forgotten - thanks to varmojfekoj for the patch
+- fixed a memory leak in syslogd/init() that happened when the config
+ file could not be read - thanks to varmojfekoj for the patch
+- fixed insufficient memory allocation in addAction() and its helpers.
+ The initial fix and idea was developed by mildew, I fine-tuned
+ it a bit. Thanks a lot for the fix, I'd probably had pulled out my
+ hair to find the bug...
+- added output of config file line number when a parsing error occurred
+- fixed bug in objomsr.c that caused program to abort in debug mode with
+ an invalid assertion (in some cases)
+- fixed a typo that caused the default template for MySQL to be wrong.
+ thanks to mildew for catching this.
+- added configuration file command $DebugPrintModuleList and
+ $DebugPrintCfSysLineHandlerList
+- fixed an invalid value for the MARK timer - unfortunately, there was
+ a testing aid left in place. This resulted in quite frequent MARK messages
+- added $IncludeConfig config directive
+- applied a patch from mildew to prevent rsyslogd from freezing under heavy
+ load. This could happen when the queue was full. Now, we drop messages
+ but rsyslogd remains active.
+---------------------------------------------------------------------------
+Version 1.17.5 (rgerhards), 2007-07-30
+- continued to work on output module modularization
+- fixed a missing file bug - thanks to Andrea Montanari for reporting
+ this problem
+- fixed a problem with shutting down the worker thread and freeing the
+ selector_t list - this caused messages to be lost, because the
+ message queue was not properly drained before the selectors got
+ destroyed.
+---------------------------------------------------------------------------
+Version 1.17.4 (rgerhards), 2007-07-27
+- continued to work on output module modularization
+- fixed a situation where rsyslogd could create zombie processes
+ thanks to mildew for the patch
+- applied patch from Michel Samia to fix compilation when NOT
+ compiled for pthreads
+---------------------------------------------------------------------------
+Version 1.17.3 (rgerhards), 2007-07-25
+- continued working on output module modularization
+- fixed a bug that caused rsyslogd to segfault on exit (and
+ probably also on HUP), when there was an unsent message in a selector
+ that required forwarding and the dns lookup failed for that selector
+ (yes, it was pretty unlikely to happen;))
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- fixed a memory leak in config file parsing and die()
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- rsyslogd now checks on startup if it is capable to perform any work
+ at all. If it cant, it complains and terminates
+ thanks to Michel Samia for providing the patch!
+- fixed a small memory leak when HUPing syslogd. The allowed sender
+ list now gets freed. thanks to mildew for the patch.
+- changed the way error messages in early startup are logged. They
+ now do no longer use the syslogd code directly but are rather
+ send to stderr.
+---------------------------------------------------------------------------
+Version 1.17.2 (rgerhards), 2007-07-23
+- made the port part of the -r option optional. Needed for backward
+ compatibility with sysklogd
+- replaced system() calls with something more reasonable. Please note that
+ this might break compatibility with some existing configuration files.
+ We accept this in favor of the gained security.
+- removed a memory leak that could occur if timegenerated was used in
+ RFC 3164 format in templates
+- did some preparation in msg.c for advanced multithreading - placed the
+ hooks, but not yet any active code
+- worked further on modularization
+- added $ModLoad MySQL (dummy) config directive
+- added DropTrailingLFOnReception config directive
+---------------------------------------------------------------------------
+Version 1.17.1 (rgerhards), 2007-07-20
+- fixed a bug that caused make install to install rsyslogd and rklogd under
+ the wrong names
+- fixed bug that caused $AllowedSenders to handle IPv6 scopes incorrectly;
+ also fixed but that could garble $AllowedSender wildcards. Thanks to
+ mildew@gmail.com for the patch
+- minor code cleanup - thanks to Peter Vrabec for the patch
+- fixed minimal memory leak on HUP (caused by templates)
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- fixed another memory leak on HUPing and on exiting rsyslogd
+ again thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- code cleanup (removed compiler warnings)
+- fixed portability bug in configure.ac - thanks to Bartosz Kuźma for patch
+- moved msg object into its own file set
+- added the capability to continue trying to write log files when the
+ file system is full. Functionality based on patch by Martin Schulze
+ to sysklogd package.
+---------------------------------------------------------------------------
+Version 1.17.0 (RGer), 2007-07-17
+- added $RepeatedLineReduction config parameter
+- added $EscapeControlCharactersOnReceive config parameter
+- added $ControlCharacterEscapePrefix config parameter
+- added $DirCreateMode config parameter
+- added $CreateDirs config parameter
+- added $DebugPrintTemplateList config parameter
+- added $ResetConfigVariables config parameter
+- added $FileOwner config parameter
+- added $FileGroup config parameter
+- added $DirOwner config parameter
+- added $DirGroup config parameter
+- added $FailOnChownFailure config parameter
+- added regular expression support to the filter engine
+ thanks to Michel Samia for providing the patch!
+- enhanced $AllowedSender functionality. Credits to mildew@gmail.com for
+ the patch doing that
+ - added IPv6 support
+ - allowed DNS hostnames
+ - allowed DNS wildcard names
+- added new option $DropMsgsWithMaliciousDnsPTRRecords
+- added autoconf so that rfc3195d, rsyslogd and klogd are stored to /sbin
+- added capability to auto-create directories with dynaFiles
+---------------------------------------------------------------------------
+Version 1.16.0 (RGer/Peter Vrabec), 2007-07-13 - The Friday, 13th Release ;)
+- build system switched to autotools
+- removed SYSV preprocessor macro use, replaced with autotools equivalents
+- fixed a bug that caused rsyslogd to segfault when TCP listening was
+ disabled and it terminated
+- added new properties "syslogfacility-text" and "syslogseverity-text"
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- added the -x option to disable hostname dns resolution
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- begun to better modularize syslogd.c - this is an ongoing project; moved
+ type definitions to a separate file
+- removed some now-unused fields from struct filed
+- move file size limit fields in struct field to the "right spot" (the file
+ writing part of the union - f_un.f_file)
+- subdirectories linux and solaris are no longer part of the distribution
+ package. This is not because we cease support for them, but there are no
+ longer any files in them after the move to autotools
+---------------------------------------------------------------------------
+Version 1.15.1 (RGer), 2007-07-10
+- fixed a bug that caused a dynaFile selector to stall when there was
+ an open error with one file
+- improved template processing for dynaFiles; templates are now only
+ looked up during initialization - speeds up processing
+- optimized memory layout in struct filed when compiled with MySQL
+ support
+- fixed a bug that caused compilation without SYSLOG_INET to fail
+- re-enabled the "last message repeated n times" feature. This
+ feature was not taken care of while rsyslogd evolved from sysklogd
+ and it was more or less defunct. Now it is fully functional again.
+- added system properties: $NOW, $YEAR, $MONTH, $DAY, $HOUR, $MINUTE
+- fixed a bug in iovAsString() that caused a memory leak under stress
+ conditions (most probably memory shortage). This was unlikely to
+ ever happen, but it doesn't hurt doing it right
+- cosmetic: defined type "uchar", change all unsigned chars to uchar
+---------------------------------------------------------------------------
+Version 1.15.0 (RGer), 2007-07-05
+- added ability to dynamically generate file names based on templates
+ and thus properties. This was a much-requested feature. It makes
+ life easy when it e.g. comes to splitting files based on the sender
+ address.
+- added $umask and $FileCreateMode config file directives
+- applied a patch from Bartosz Kuzma to compile cleanly under NetBSD
+- checks for extra (unexpected) characters in system config file lines
+ have been added
+- added IPv6 documentation - was accidentally missing from CVS
+- begun to change char to unsigned char
+---------------------------------------------------------------------------
+Version 1.14.2 (RGer), 2007-07-03
+** this release fixes all known nits with IPv6 **
+- restored capability to do /etc/service lookup for "syslog"
+ service when -r 0 was given
+- documented IPv6 handling of syslog messages
+- integrate patch from Bartosz Kuźma to make rsyslog compile under
+ Solaris again (the patch replaced a strndup() call, which is not
+ available under Solaris
+- improved debug logging when waiting on select
+- updated rsyslogd man page with new options (-46A)
+---------------------------------------------------------------------------
+Version 1.14.1 (RGer/Peter Vrabec), 2007-06-29
+- added Peter Vrabec's patch for IPv6 TCP
+- prefixed all messages send to stderr in rsyslogd with "rsyslogd: "
+---------------------------------------------------------------------------
+Version 1.14.0 (RGer/Peter Vrabec), 2007-06-28
+- Peter Vrabec provided IPv6 for rsyslog, so we are now IPv6 enabled
+ IPv6 Support is currently for UDP only, TCP is to come soon.
+ AllowedSender configuration does not yet work for IPv6.
+- fixed code in iovCreate() that broke C's strict aliasing rules
+- fixed some char/unsigned char differences that forced the compiler
+ to spit out warning messages
+- updated the Red Hat init script to fix a known issue (thanks to
+ Peter Vrabec)
+---------------------------------------------------------------------------
+Version 1.13.5 (RGer), 2007-06-22
+- made the TCP session limit configurable via command line switch
+ now -t <port>,<max sessions>
+- added man page for rklogd(8) (basically a copy from klogd, but now
+ there is one...)
+- fixed a bug that caused internal messages (e.g. rsyslogd startup) to
+ appear without a tag.
+- removed a minor memory leak that occurred when TAG processing requalified
+ a HOSTNAME to be a TAG (and a TAG already was set).
+- removed potential small memory leaks in MsgSet***() functions. There
+ would be a leak if a property was re-set, something that happened
+ extremely seldom.
+---------------------------------------------------------------------------
+Version 1.13.4 (RGer), 2007-06-18
+- added a new property "PRI-text", which holds the PRI field in
+ textual form (e.g. "syslog.info")
+- added alias "syslogseverity" for "syslogpriority", which is a
+ misleading property name that needs to stay for historical
+ reasons (and backward-compatibility)
+- added doc on how to record PRI value in log file
+- enhanced signal handling in klogd, including removal of an unsafe
+ call to the logging system during signal handling
+---------------------------------------------------------------------------
+Version 1.13.3 (RGer), 2007-06-15
+- create a version of syslog.c from scratch. This is now
+ - highly optimized for rsyslog
+ - removes an incompatible license problem as the original
+ version had a BSD license with advertising clause
+ - fixed in the regard that rklogd will continue to work when
+ rsyslogd has been restarted (the original version, as well
+ as sysklogd, will remain silent then)
+ - solved an issue with an extra NUL char at message end that the
+ original version had
+- applied some changes to klogd to care for the new interface
+- fixed a bug in syslogd.c which prevented compiling under debian
+---------------------------------------------------------------------------
+Version 1.13.2 (RGer), 2007-06-13
+- lib order in makefile patched to facilitate static linking - thanks
+ to Bennett Todd for providing the patch
+- Integrated a patch from Peter Vrabec (pvrabec@redhat.com):
+ - added klogd under the name of rklogd (remove dependency on
+ original sysklogd package
+ - createDB.sql now in UTF
+ - added additional config files for use on Red Hat
+---------------------------------------------------------------------------
+Version 1.13.1 (RGer), 2007-02-05
+- changed the listen backlog limit to a more reasonable value based on
+ the maximum number of TCP connections configured (10% + 5) - thanks to Guy
+ Standen for the hint (actually, the limit was 5 and that was a
+ left-over from early testing).
+- fixed a bug in makefile which caused DB-support to be disabled when
+ NETZIP support was enabled
+- added the -e option to allow transmission of every message to remote
+ hosts (effectively turns off duplicate message suppression)
+- (somewhat) improved memory consumption when compiled with MySQL support
+- looks like we fixed an incompatibility with MySQL 5.x and above software
+ At least in one case, the remote server name was destroyed, leading to
+ a connection failure. The new, improved code does not have this issue and
+ so we see this as solved (the new code is generally somewhat better, so
+ there is a good chance we fixed this incompatibility).
+---------------------------------------------------------------------------
+Version 1.13.0 (RGer), 2006-12-19
+- added '$' as ToPos property replacer specifier - means "up to the
+ end of the string"
+- property replacer option "escape-cc", "drop-cc" and "space-cc" added
+- changed the handling of \0 characters inside syslog messages. We now
+ consistently escape them to "#000". This is somewhat recommended in
+ the draft-ietf-syslog-protocol-19 draft. While the real recommendation
+ is to not escape any characters at all, we can not do this without
+ considerable modification of the code. So we escape it to "#000", which
+ is consistent with a sample found in the Internet-draft.
+- removed message glue logic (see printchopped() comment for details)
+ Also caused removal of parts table and thus some improvements in
+ memory usage.
+- changed the default MAXLINE to 2048 to take care of recent syslog
+ standardization efforts (can easily be changed in syslogd.c)
+- added support for byte-counted TCP syslog messages (much like
+ syslog-transport-tls-05 Internet Draft). This was necessary to
+ support compression over TCP.
+- added support for receiving compressed syslog messages
+- added support for sending compressed syslog messages
+- fixed a bug where the last message in a syslog/tcp stream was
+ lost if it was not properly terminated by a LF character
+---------------------------------------------------------------------------
+Version 1.12.3 (RGer), 2006-10-04
+- implemented some changes to support Solaris (but support is not
+ yet complete)
+- commented out (via #if 0) some methods that are currently not being use
+ but should be kept for further us
+- added (interim) -u 1 option to turn off hostname and tag parsing
+- done some modifications to better support Fedora
+- made the field delimiter inside property replace configurable via
+ template
+- fixed a bug in property replacer: if fields were used, the delimitor
+ became part of the field. Up until now, this was barely noticeable as
+ the delimiter as TAB only and thus invisible to a human. With other
+ delimiters available now, it quickly showed up. This bug fix might cause
+ some grief to existing installations if they used the extra TAB for
+ whatever reasons - sorry folks... Anyhow, a solution is easy: just add
+ a TAB character constant into your template. Thus, there has no attempt
+ been made to do this in a backwards-compatible way.
+---------------------------------------------------------------------------
+Version 1.12.2 (RGer), 2006-02-15
+- fixed a bug in the RFC 3339 date formatter. An extra space was added
+ after the actual timestamp
+- added support for providing high-precision RFC3339 timestamps for
+ (rsyslogd-)internally-generated messages
+- very (!) experimental support for syslog-protocol internet draft
+ added (the draft is experimental, the code is solid ;))
+- added support for field-extracting in the property replacer
+- enhanced the legacy-syslog parser so that it can interpret messages
+ that do not contain a TIMESTAMP
+- fixed a bug that caused the default socket (usually /dev/log) to be
+ opened even when -o command line option was given
+- fixed a bug in the Debian sample startup script - it caused rsyslogd
+ to listen to remote requests, which it shouldn't by default
+---------------------------------------------------------------------------
+Version 1.12.1 (RGer), 2005-11-23
+- made multithreading work with BSD. Some signal-handling needed to be
+ restructured. Also, there might be a slight delay of up to 10 seconds
+ when huping and terminating rsyslogd under BSD
+- fixed a bug where a NULL-pointer was passed to printf() in logmsg().
+- fixed a bug during "make install" where rc3195d was not installed
+ Thanks to Bennett Todd for spotting this.
+- fixed a bug where rsyslogd dumped core when no TAG was found in the
+ received message
+- enhanced message parser so that it can deal with missing hostnames
+ in many cases (may not be totally fail-safe)
+- fixed a bug where internally-generated messages did not have the correct
+ TAG
+---------------------------------------------------------------------------
+Version 1.12.0 (RGer), 2005-10-26
+- moved to a multi-threaded design. single-threading is still optionally
+ available. Multi-threading is experimental!
+- fixed a potential race condition. In the original code, marking was done
+ by an alarm handler, which could lead to all sorts of bad things. This
+ has been changed now. See comments in syslogd.c/domark() for details.
+- improved debug output for property-based filters
+- not a code change, but: I have checked all exit()s to make sure that
+ none occurs once rsyslogd has started up. Even in unusual conditions
+ (like low-memory conditions) rsyslogd somehow remains active. Of course,
+ it might loose a message or two, but at least it does not abort and it
+ can also recover when the condition no longer persists.
+- fixed a bug that could cause loss of the last message received
+ immediately before rsyslogd was terminated.
+- added comments on thread-safety of global variables in syslogd.c
+- fixed a small bug: spurios printf() when TCP syslog was used
+- fixed a bug that causes rsyslogd to dump core on termination when one
+ of the selector lines did not receive a message during the run (very
+ unlikely)
+- fixed an one-too-low memory allocation in the TCP sender. Could result
+ in rsyslogd dumping core.
+- fixed a bug with regular expression support (thanks to Andres Riancho)
+- a little bit of code restructuring (especially main(), which was
+ horribly large)
+---------------------------------------------------------------------------
+Version 1.11.1 (RGer), 2005-10-19
+- support for BSD-style program name and host blocks
+- added a new property "programname" that can be used in templates
+- added ability to specify listen port for rfc3195d
+- fixed a bug that rendered the "startswith" comparison operation
+ unusable.
+- changed more functions to "static" storage class to help compiler
+ optimize (should have been static in the first place...)
+- fixed a potential memory leak in the string buffer class destructor.
+ As the destructor was previously never called, the leak did not actually
+ appear.
+- some internal restructuring in anticipation/preparation of minimal
+ multi-threading support
+- rsyslogd still shares some code with the sysklogd project. Some patches
+ for this shared code have been brought over from the sysklogd CVS.
+---------------------------------------------------------------------------
+Version 1.11.0 (RGer), 2005-10-12
+- support for receiving messages via RFC 3195; added rfc3195d for that
+ purpose
+- added an additional guard to prevent rsyslogd from aborting when the
+ 2gb file size limit is hit. While a user can configure rsyslogd to
+ handle such situations, it would abort if that was not done AND large
+ file support was not enabled (ok, this is hopefully an unlikely scenario)
+- fixed a bug that caused additional Unix domain sockets to be incorrectly
+ processed - could lead to message loss in extreme cases
+---------------------------------------------------------------------------
+Version 1.10.2 (RGer), 2005-09-27
+- added comparison operations in property-based filters:
+ * isequal
+ * startswith
+- added ability to negate all property-based filter comparison operations
+ by adding a !-sign right in front of the operation name
+- added the ability to specify remote senders for UDP and TCP
+ received messages. Allows to block all but well-known hosts
+- changed the $-config line directives to be case-INsensitive
+- new command line option -w added: "do not display warnings if messages
+ from disallowed senders are received"
+- fixed a bug that caused rsyslogd to dump core when the compare value
+ was not quoted in property-based filters
+- fixed a bug in the new CStr compare function which lead to invalid
+ results (fortunately, this function was not yet used widely)
+- added better support for "debugging" rsyslog.conf property filters
+ (only if -d switch is given)
+- changed some function definitions to static, which eventually enables
+ some compiler optimizations
+- fixed a bug in MySQL code; when a SQL error occurred, rsyslogd could
+ run in a tight loop. This was due to invalid sequence of error reporting
+ and is now fixed.
+---------------------------------------------------------------------------
+Version 1.10.1 (RGer), 2005-09-23
+- added the ability to execute a shell script as an action.
+ Thanks to Bjoern Kalkbrenner for providing the code!
+- fixed a bug in the MySQL code; due to the bug the automatic one-time
+ retry after an error did not happen - this lead to error message in
+ cases where none should be seen (e.g. after a MySQL restart)
+- fixed a security issue with SQL-escaping in conjunction with
+ non-(SQL-)standard MySQL features.
+---------------------------------------------------------------------------
+Version 1.10.0 (RGer), 2005-09-20
+ REMINDER: 1.10 is the first unstable version if the 1.x series!
+- added the capability to filter on any property in selector lines
+ (not just facility and priority)
+- changed stringbuf into a new counted string class
+- added support for a "discard" action. If a selector line with
+ discard (~ character) is found, no selector lines *after* that
+ line will be processed.
+- thanks to Andres Riancho, regular expression support has been
+ added to the template engine
+- added the FROMHOST property in the template processor, which could
+ previously not be obtained. Thanks to Cristian Testa for pointing
+ this out and even providing a fix.
+- added display of compile-time options to -v output
+- performance improvement for production build - made some checks
+ to happen only during debug mode
+- fixed a problem with compiling on SUSE and - while doing so - removed
+ the socket call to set SO_BSDCOMPAT in cases where it is obsolete.
+---------------------------------------------------------------------------
+Version 1.0.4 (RGer), 2006-02-01
+- a small but important fix: the tcp receiver had two forgotten printf's
+ in it that caused a lot of unnecessary output to stdout. This was
+ important enough to justify a new release
+---------------------------------------------------------------------------
+Version 1.0.3 (RGer), 2005-11-14
+- added an additional guard to prevent rsyslogd from aborting when the
+ 2gb file size limit is hit. While a user can configure rsyslogd to
+ handle such situations, it would abort if that was not done AND large
+ file support was not enabled (ok, this is hopefully an unlikely scenario)
+- fixed a bug that caused additional Unix domain sockets to be incorrectly
+ processed - could lead to message loss in extreme cases
+- applied some patches available from the sysklogd project to code
+ shared from there
+- fixed a bug that causes rsyslogd to dump core on termination when one
+ of the selector lines did not receive a message during the run (very
+ unlikely)
+- fixed an one-too-low memory allocation in the TCP sender. Could result
+ in rsyslogd dumping core.
+- fixed a bug in the TCP sender that caused the retry logic to fail
+ after an error or receiver overrun
+- fixed a bug in init() that could lead to dumping core
+- fixed a bug that could lead to dumping core when no HOSTNAME or no TAG
+ was present in the syslog message
+---------------------------------------------------------------------------
+Version 1.0.2 (RGer), 2005-10-05
+- fixed an issue with MySQL error reporting. When an error occurred,
+ the MySQL driver went into an endless loop (at least in most cases).
+---------------------------------------------------------------------------
+Version 1.0.1 (RGer), 2005-09-23
+- fixed a security issue with SQL-escaping in conjunction with
+ non-(SQL-)standard MySQL features.
+---------------------------------------------------------------------------
+Version 1.0.0 (RGer), 2005-09-12
+- changed install doc to cover daily cron scripts - a trouble source
+- added rc script for slackware (provided by Chris Elvidge - thanks!)
+- fixed a really minor bug in usage() - the -r option was still
+ reported as without the port parameter
+---------------------------------------------------------------------------
+Version 0.9.8 (RGer), 2005-09-05
+- made startup and shutdown message more consistent and included the
+ pid, so that they can be easier correlated. Used syslog-protocol
+ structured data format for this purpose.
+- improved config info in startup message, now tells not only
+ if it is listening remote on udp, but also for tcp. Also includes
+ the port numbers. The previous startup message was misleading, because
+ it did not say "remote reception" if rsyslogd was only listening via
+ tcp (but not via udp).
+- added a "how can you help" document to the doc set
+---------------------------------------------------------------------------
+Version 0.9.7 (RGer), 2005-08-15
+- some of the previous doc files (like INSTALL) did not properly
+ reflect the changes to the build process and the new doc. Fixed
+ that.
+- changed syslogd.c so that when compiled without database support,
+ an error message is displayed when a database action is detected
+ in the config file (previously this was used as an user rule ;))
+- fixed a bug in the os-specific Makefiles which caused MySQL
+ support to not be compiled, even if selected
+---------------------------------------------------------------------------
+Version 0.9.6 (RGer), 2005-08-09
+- greatly enhanced documentation. Now available in html format in
+ the "doc" folder and FreeBSD. Finally includes an install howto.
+- improved MySQL error messages a little - they now show up as log
+ messages, too (formerly only in debug mode)
+- added the ability to specify the listen port for udp syslog.
+ WARNING: This introduces an incompatibility. Formerly, udp
+ syslog was enabled by the -r command line option. Now, it is
+ "-r [port]", which is consistent with the tcp listener. However,
+ just -r will now return an error message.
+- added sample startup scripts for Debian and FreeBSD
+- added support for easy feature selection in the makefile. Un-
+ fortunately, this also means I needed to spilt the make file
+ for different OS and distros. There are some really bad syntax
+ differences between FreeBSD and Linux make.
+---------------------------------------------------------------------------
+Version 0.9.5 (RGer), 2005-08-01
+- the "semicolon bug" was actually not (fully) solved in 0.9.4. One
+ part of the bug was solved, but another still existed. This one
+ is fixed now, too.
+- the "semicolon bug" actually turned out to be a more generic bug.
+ It appeared whenever an invalid template name was given. With some
+ selector actions, rsyslogd dumped core, with other it "just" had
+ a small resource leak with others all worked well. These anomalies
+ are now fixed. Note that they only appeared during system initialization
+ once the system was running, nothing bad happened.
+- improved error reporting for template errors on startup. They are now
+ shown on the console and the start-up tty. Formerly, they were only
+ visible in debug mode.
+- support for multiple instances of rsyslogd on a single machine added
+- added new option "-o" --> omit local unix domain socket. This option
+ enables rsyslogd NOT to listen to the local socket. This is most
+ helpful when multiple instances of rsyslogd (or rsyslogd and another
+ syslogd) shall run on a single system.
+- added new option "-i <pidfile>" which allows one to specify the pidfile.
+ This is needed when multiple instances of rsyslogd are to be run.
+- the new project home page is now online at www.rsyslog.com
+---------------------------------------------------------------------------
+Version 0.9.4 (RGer), 2005-07-25
+- finally added the TCP sender. It now supports non-blocking mode, no
+ longer disabling message reception during connect. As it is now, it
+ is usable in production. The code could be more sophisticated, but
+ I've kept it short in anticipation of the move to liblogging, which
+ will lead to the removal of the code just written ;)
+- the "exiting on signal..." message still had the "syslogd" name in
+ it. Changed this to "rsyslogd", as we do not have a large user base
+ yet, this should pose no problem.
+- fixed "the semicolon" bug. rsyslogd dumped core if a write-db action
+ was specified but no semicolon was given after the password (an empty
+ template was ok, but the semicolon needed to be present).
+- changed a default for traditional output format. During testing, it
+ was seen that the timestamp written to file in default format was
+ the time of message reception, not the time specified in the TIMESTAMP
+ field of the message itself. Traditionally, the message TIMESTAMP is
+ used and this has been changed now.
+---------------------------------------------------------------------------
+Version 0.9.3 (RGer), 2005-07-19
+- fixed a bug in the message parser. In June, the RFC 3164 timestamp
+ was not correctly parsed (yes, only in June and some other months,
+ see the code comment to learn why...)
+- added the ability to specify the destination port when forwarding
+ syslog messages (both for TCP and UDP)
+- added an very experimental TCP sender (activated by
+ @@machine:port in config). This is not yet for production use. If
+ the receiver is not alive, rsyslogd will wait quite some time until
+ the connection request times out, which most probably leads to
+ loss of incoming messages.
+
+---------------------------------------------------------------------------
+Version 0.9.2 (RGer), around 2005-07-06
+- I intended to change the maxsupported message size to 32k to
+ support IHE - but given the memory inefficiency in the usual use
+ cases, I have not done this. I have, however, included very
+ specific instructions on how to do this in the source code. I have
+ also done some testing with 32k messages, so you can change the
+ max size without taking too much risk.
+- added a syslog/tcp receiver; we now can receive messages via
+ plain tcp, but we can still send only via UDP. The syslog/tcp
+ receiver is the primary enhancement of this release.
+- slightly changed some error messages that contained a spurios \n at
+ the end of the line (which gives empty lines in your log...)
+
+---------------------------------------------------------------------------
+Version 0.9.1 (RGer)
+- fixed code so that it compiles without errors under FreeBSD
+- removed now unused function "allocate_log()" from syslogd.c
+- changed the make file so that it contains more defines for
+ different environments (in the long term, we need a better
+ system for disabling/enabling features...)
+- changed some printf's printing off_t types to %lld and
+ explicit (long long) casts. I tried to figure out the exact type,
+ but did not succeed in this. In the worst case, ultra-large peta-
+ byte files will now display funny informational messages on rollover,
+ something I think we can live with for the neersion 3.11.2 (rgerhards), 2008-02-??
+---------------------------------------------------------------------------
+Version 3.11.1 (rgerhards), 2008-02-12
+- SNMP trap sender added thanks to Andre Lorbach (omsnmp)
+- added input-plugin interface specification in form of a (copy) template
+ input module
+- applied documentation fix by Michael Biebl -- many thanks!
+- bugfix: immark did not have MARK flags set...
+- added x-info field to rsyslogd startup/shutdown message. Hopefully
+ points users to right location for further info (many don't even know
+ they run rsyslog ;))
+- bugfix: trailing ":" of tag was lost while parsing legacy syslog messages
+ without timestamp - thanks to Anders Blomdell for providing a patch!
+- fixed a bug in stringbuf.c related to STRINGBUF_TRIM_ALLOCSIZE, which
+ wasn't supposed to be used with rsyslog. Put a warning message up that
+ tells this feature is not tested and probably not worth the effort.
+ Thanks to Anders Blomdell fro bringing this to our attention
+- somewhat improved performance of string buffers
+- fixed bug that caused invalid treatment of tabs (HT) in rsyslog.conf
+- bugfix: setting for $EscapeControlCharactersOnReceive was not
+ properly initialized
+- clarified usage of space-cc property replacer option
+- improved abort diagnostic handler
+- some initial effort for malloc/free runtime debugging support
+- bugfix: using dynafile actions caused rsyslogd abort
+- fixed minor man errors thanks to Michael Biebl
+---------------------------------------------------------------------------
+Version 3.11.0 (rgerhards), 2008-01-31
+- implemented queued actions
+- implemented simple rate limiting for actions
+- implemented deliberate discarding of lower priority messages over higher
+ priority ones when a queue runs out of space
+- implemented disk quotas for disk queues
+- implemented the $ActionResumeRetryCount config directive
+- added $ActionQueueFilename config directive
+- added $ActionQueueSize config directive
+- added $ActionQueueHighWaterMark config directive
+- added $ActionQueueLowWaterMark config directive
+- added $ActionQueueDiscardMark config directive
+- added $ActionQueueDiscardSeverity config directive
+- added $ActionQueueCheckpointInterval config directive
+- added $ActionQueueType config directive
+- added $ActionQueueWorkerThreads config directive
+- added $ActionQueueTimeoutshutdown config directive
+- added $ActionQueueTimeoutActionCompletion config directive
+- added $ActionQueueTimeoutenQueue config directive
+- added $ActionQueueTimeoutworkerThreadShutdown config directive
+- added $ActionQueueWorkerThreadMinimumMessages config directive
+- added $ActionQueueMaxFileSize config directive
+- added $ActionQueueSaveonShutdown config directive
+- addded $ActionQueueDequeueSlowdown config directive
+- addded $MainMsgQueueDequeueSlowdown config directive
+- bugfix: added forgotten docs to package
+- improved debugging support
+- fixed a bug that caused $MainMsgQueueCheckpointInterval to work incorrectly
+- when a long-running action needs to be cancelled on shutdown, the message
+ that was processed by it is now preserved. This finishes support for
+ guaranteed delivery of messages (if the output supports it, of course)
+- fixed bug in output module interface, see
+ http://sourceforge.net/tracker/index.php?func=detail&aid=1881008&group_id=123448&atid=696552
+- changed the ommysql output plugin so that the (lengthy) connection
+ initialization now takes place in message processing. This works much
+ better with the new queued action mode (fast startup)
+- fixed a bug that caused a potential hang in file and fwd output module
+ varmojfekoj provided the patch - many thanks!
+- bugfixed stream class offset handling on 32bit platforms
+---------------------------------------------------------------------------
+Version 3.10.3 (rgerhards), 2008-01-28
+- fixed a bug with standard template definitions (not a big deal) - thanks
+ to varmojfekoj for spotting it
+- run-time instrumentation added
+- implemented disk-assisted queue mode, which enables on-demand disk
+ spooling if the queue's in-memory queue is exhausted
+- implemented a dynamic worker thread pool for processing incoming
+ messages; workers are started and shut down as need arises
+- implemented a run-time instrumentation debug package
+- implemented the $MainMsgQueueSaveOnShutdown config directive
+- implemented the $MainMsgQueueWorkerThreadMinimumMessages config directive
+- implemented the $MainMsgQueueTimeoutWorkerThreadShutdown config directive
+---------------------------------------------------------------------------
+Version 3.10.2 (rgerhards), 2008-01-14
+- added the ability to keep stop rsyslogd without the need to drain
+ the main message queue. In disk queue mode, rsyslog continues to
+ run from the point where it stopped. In case of a system failure, it
+ continues to process messages from the last checkpoint.
+- fixed a bug that caused a segfault on startup when no $WorkDir directive
+ was specified in rsyslog.conf
+- provided more fine-grain control over shutdown timeouts and added a
+ way to specify the enqueue timeout when the main message queue is full
+- implemented $MainMsgQueueCheckpointInterval config directive
+- implemented $MainMsgQueueTimeoutActionCompletion config directive
+- implemented $MainMsgQueueTimeoutEnqueue config directive
+- implemented $MainMsgQueueTimeoutShutdown config directive
+---------------------------------------------------------------------------
+Version 3.10.1 (rgerhards), 2008-01-10
+- implemented the "disk" queue mode. However, it currently is of very
+ limited use, because it does not support persistence over rsyslogd
+ runs. So when rsyslogd is stopped, the queue is drained just as with
+ the in-memory queue modes. Persistent queues will be a feature of
+ the next release.
+- performance-optimized string class, should bring an overall improvement
+- fixed a memory leak in imudp -- thanks to varmojfekoj for the patch
+- fixed a race condition that could lead to a rsyslogd hang when during
+ HUP or termination
+- done some doc updates
+- added $WorkDirectory config directive
+- added $MainMsgQueueFileName config directive
+- added $MainMsgQueueMaxFileSize config directive
+---------------------------------------------------------------------------
+Version 3.10.0 (rgerhards), 2008-01-07
+- implemented input module interface and initial input modules
+- enhanced threading for input modules (each on its own thread now)
+- ability to bind UDP listeners to specific local interfaces/ports and
+ ability to run multiple of them concurrently
+- added ability to specify listen IP address for UDP syslog server
+- license changed to GPLv3
+- mark messages are now provided by loadble module immark
+- rklogd is no longer provided. Its functionality has now been taken over
+ by imklog, a loadable input module. This offers a much better integration
+ into rsyslogd and makes sure that the kernel logger process is brought
+ up and down at the appropriate times
+- enhanced $IncludeConfig directive to support wildcard characters
+ (thanks to Michael Biebl)
+- all inputs are now implemented as loadable plugins
+- enhanced threading model: each input module now runs on its own thread
+- enhanced message queue which now supports different queueing methods
+ (among others, this can be used for performance fine-tuning)
+- added a large number of new configuration directives for the new
+ input modules
+- enhanced multi-threading utilizing a worker thread pool for the
+ main message queue
+- compilation without pthreads is no longer supported
+- much cleaner code due to new objects and removal of single-threading
+ mode
+---------------------------------------------------------------------------
+Version 2.0.1 STABLE (rgerhards), 2008-01-24
+- fixed a bug in integer conversion - but this function was never called,
+ so it is not really a useful bug fix ;)
+- fixed a bug with standard template definitions (not a big deal) - thanks
+ to varmojfekoj for spotting it
+- fixed a bug that caused a potential hang in file and fwd output module
+ varmojfekoj provided the patch - many thanks!
+---------------------------------------------------------------------------
+Version 2.0.0 STABLE (rgerhards), 2008-01-02
+- re-release of 1.21.2 as STABLE with no modifications except some
+ doc updates
+---------------------------------------------------------------------------
+Version 1.21.2 (rgerhards), 2007-12-28
+- created a gss-api output module. This keeps GSS-API code and
+ TCP/UDP code separated. It is also important for forward-
+ compatibility with v3. Please note that this change breaks compatibility
+ with config files created for 1.21.0 and 1.21.1 - this was considered
+ acceptable.
+- fixed an error in forwarding retry code (could lead to message corruption
+ but surfaced very seldom)
+- increased portability for older platforms (AI_NUMERICSERV moved)
+- removed socket leak in omfwd.c
+- cross-platform patch for GSS-API compile problem on some platforms
+ thanks to darix for the patch!
+---------------------------------------------------------------------------
+Version 1.21.1 (rgerhards), 2007-12-23
+- small doc fix for $IncludeConfig
+- fixed a bug in llDestroy()
+- bugfix: fixing memory leak when message queue is full and during
+ parsing. Thanks to varmojfekoj for the patch.
+- bugfix: when compiled without network support, unix sockets were
+ not properly closed
+- bugfix: memory leak in cfsysline.c/doGetWord() fixed
+---------------------------------------------------------------------------
+Version 1.21.0 (rgerhards), 2007-12-19
+- GSS-API support for syslog/TCP connections was added. Thanks to
+ varmojfekoj for providing the patch with this functionality
+- code cleanup
+- enhanced $IncludeConfig directive to support wildcard filenames
+- changed some multithreading synchronization
+---------------------------------------------------------------------------
+Version 1.20.1 (rgerhards), 2007-12-12
+- corrected a debug setting that survived release. Caused TCP connections
+ to be retried unnecessarily often.
+- When a hostname ACL was provided and DNS resolution for that name failed,
+ ACL processing was stopped at that point. Thanks to mildew for the patch.
+ Fedora Bugzilla: http://bugzilla.redhat.com/show_bug.cgi?id=395911
+- fixed a potential race condition, see link for details:
+ http://rgerhards.blogspot.com/2007/12/rsyslog-race-condition.html
+ Note that the probability of problems from this bug was very remote
+- fixed a memory leak that happened when PostgreSQL date formats were
+ used
+---------------------------------------------------------------------------
+Version 1.20.0 (rgerhards), 2007-12-07
+- an output module for postgres databases has been added. Thanks to
+ sur5r for contributing this code
+- unloading dynamic modules has been cleaned up, we now have a
+ real implementation and not just a dummy "good enough for the time
+ being".
+- enhanced platform independence - thanks to Bartosz Kuzma and Michael
+ Biebl for their very useful contributions
+- some general code cleanup (including warnings on 64 platforms, only)
+---------------------------------------------------------------------------
+Version 1.19.12 (rgerhards), 2007-12-03
+- cleaned up the build system (thanks to Michael Biebl for the patch)
+- fixed a bug where ommysql was still not compiled with -pthread option
+---------------------------------------------------------------------------
+Version 1.19.11 (rgerhards), 2007-11-29
+- applied -pthread option to build when building for multi-threading mode
+ hopefully solves an issue with segfaulting
+---------------------------------------------------------------------------
+Version 1.19.10 (rgerhards), 2007-10-19
+- introduced the new ":modulename:" syntax for calling module actions
+ in selector lines; modified ommysql to support it. This is primarily
+ an aid for further modules and a prerequisite to actually allow third
+ party modules to be created.
+- minor fix in slackware startup script, "-r 0" is now "-r0"
+- updated rsyslogd doc set man page; now in html format
+- undid creation of a separate thread for the main loop -- this did not
+ turn out to be needed or useful, so reduce complexity once again.
+- added doc fixes provided by Michael Biebl - thanks
+---------------------------------------------------------------------------
+Version 1.19.9 (rgerhards), 2007-10-12
+- now packaging system which again contains all components in a single
+ tarball
+- modularized main() a bit more, resulting in less complex code
+- experimentally added an additional thread - will see if that affects
+ the segfault bug we experience on some platforms. Note that this change
+ is scheduled to be removed again later.
+---------------------------------------------------------------------------
+Version 1.19.8 (rgerhards), 2007-09-27
+- improved repeated message processing
+- applied patch provided by varmojfekoj to support building ommysql
+ in its own way (now also resides in a plugin subdirectory);
+ ommysql is now a separate package
+- fixed a bug in cvthname() that lead to message loss if part
+ of the source hostname would have been dropped
+- created some support for distributing ommysql together with the
+ main rsyslog package. I need to re-think it in the future, but
+ for the time being the current mode is best. I now simply include
+ one additional tarball for ommysql inside the main distribution.
+ I look forward to user feedback on how this should be done best. In the
+ long term, a separate project should be spawend for ommysql, but I'd
+ like to do that only after the plugin interface is fully stable (what
+ it is not yet).
+---------------------------------------------------------------------------
+Version 1.19.7 (rgerhards), 2007-09-25
+- added code to handle situations where senders send us messages ending with
+ a NUL character. It is now simply removed. This also caused trailing LF
+ reduction to fail, when it was followed by such a NUL. This is now also
+ handled.
+- replaced some non-thread-safe function calls by their thread-safe
+ counterparts
+- fixed a minor memory leak that occurred when the %APPNAME% property was
+ used (I think nobody used that in practice)
+- fixed a bug that caused signal handlers in cvthname() not to be restored when
+ a malicious pointer record was detected and processing of the message been
+ stopped for that reason (this should be really rare and can not be related
+ to the segfault bug we are hunting).
+- fixed a bug in cvthname that lead to passing a wrong parameter - in
+ practice, this had no impact.
+- general code cleanup (e.g. compiler warnings, comments)
+---------------------------------------------------------------------------
+Version 1.19.6 (rgerhards), 2007-09-11
+- applied patch by varmojfekoj to change signal handling to the new
+ sigaction API set (replacing the depreciated signal() calls and its
+ friends.
+- fixed a bug that in --enable-debug mode caused an assertion when the
+ discard action was used
+- cleaned up compiler warnings
+- applied patch by varmojfekoj to FIX a bug that could cause
+ segfaults if empty properties were processed using modifying
+ options (e.g. space-cc, drop-cc)
+- fixed man bug: rsyslogd supports -l option
+---------------------------------------------------------------------------
+Version 1.19.5 (rgerhards), 2007-09-07
+- changed part of the CStr interface so that better error tracking
+ is provided and the calling sequence is more intuitive (there were
+ invalid calls based on a too-weird interface)
+- (hopefully) fixed some remaining bugs rooted in wrong use of
+ the CStr class. These could lead to program abort.
+- applied patch by varmojfekoj two fix two potential segfault situations
+- added $ModDir config directive
+- modified $ModLoad so that an absolute path may be specified as
+ module name (e.g. /rsyslog/ommysql.so)
+---------------------------------------------------------------------------
+Version 1.19.4 (rgerhards/varmojfekoj), 2007-09-04
+- fixed a number of small memory leaks - thanks varmojfekoj for patching
+- fixed an issue with CString class that could lead to rsyslog abort
+ in tplToString() - thanks varmojfekoj for patching
+- added a man-version of the config file documentation - thanks to Michel
+ Samia for providing the man file
+- fixed bug: a template like this causes an infinite loop:
+ $template opts,"%programname:::a,b%"
+ thanks varmojfekoj for the patch
+- fixed bug: case changing options crash freeing the string pointer
+ because they modify it: $template opts2,"%programname::1:lowercase%"
+ thanks varmojfekoj for the patch
+---------------------------------------------------------------------------
+Version 1.19.3 (mmeckelein/varmojfekoj), 2007-08-31
+- small mem leak fixed (after calling parseSelectorAct) - Thx varmojfekoj
+- documentation section "Regular File" und "Blocks" updated
+- solved an issue with dynamic file generation - Once again many thanks
+ to varmojfekoj
+- the negative selector for program name filter (Blocks) does not work as
+ expected - Thanks varmojfekoj for patching
+- added forwarding information to sysklogd (requires special template)
+ to config doc
+---------------------------------------------------------------------------
+Version 1.19.2 (mmeckelein/varmojfekoj), 2007-08-28
+- a specifically formed message caused a segfault - Many thanks varmojfekoj
+ for providing a patch
+- a typo and a weird condition are fixed in msg.c - Thanks again
+ varmojfekoj
+- on file creation the file was always owned by root:root. This is fixed
+ now - Thanks ypsa for solving this issue
+---------------------------------------------------------------------------
+Version 1.19.1 (mmeckelein), 2007-08-22
+- a bug that caused a high load when a TCP/UDP connection was closed is
+ fixed now - Thanks mildew for solving this issue
+- fixed a bug which caused a segfault on reinit - Thx varmojfekoj for the
+ patch
+- changed the hardcoded module path "/lib/rsyslog" to $(pkglibdir) in order
+ to avoid trouble e.g. on 64 bit platforms (/lib64) - many thanks Peter
+ Vrabec and darix, both provided a patch for solving this issue
+- enhanced the unloading of modules - thanks again varmojfekoj
+- applied a patch from varmojfekoj which fixes various little things in
+ MySQL output module
+---------------------------------------------------------------------------
+Version 1.19.0 (varmojfekoj/rgerhards), 2007-08-16
+- integrated patch from varmojfekoj to make the mysql module a loadable one
+ many thanks for the patch, MUCH appreciated
+---------------------------------------------------------------------------
+Version 1.18.2 (rgerhards), 2007-08-13
+- fixed a bug in outchannel code that caused templates to be incorrectly
+ parsed
+- fixed a bug in ommysql that caused a wrong ";template" missing message
+- added some code for unloading modules; not yet fully complete (and we do
+ not yet have loadable modules, so this is no problem)
+- removed debian subdirectory by request of a debian packager (this is a special
+ subdir for debian and there is also no point in maintaining it when there
+ is a debian package available - so I gladly did this) in some cases
+- improved overall doc quality (some pages were quite old) and linked to
+ more of the online resources.
+- improved /contrib/delete_mysql script by adding a host option and some
+ other minor modifications
+---------------------------------------------------------------------------
+Version 1.18.1 (rgerhards), 2007-08-08
+- applied a patch from varmojfekoj which solved a potential segfault
+ of rsyslogd on HUP
+- applied patch from Michel Samia to fix compilation when the pthreads
+ feature is disabled
+- some code cleanup (moved action object to its own file set)
+- add config directive $MainMsgQueueSize, which now allows one to configure the
+ queue size dynamically
+- all compile-time settings are now shown in rsyslogd -v, not just the
+ active ones
+- enhanced performance a little bit more
+- added config file directive $ActionResumeInterval
+- fixed a bug that prevented compilation under debian sid
+- added a contrib directory for user-contributed useful things
+---------------------------------------------------------------------------
+Version 1.18.0 (rgerhards), 2007-08-03
+- rsyslog now supports fallback actions when an action did not work. This
+ is a great feature e.g. for backup database servers or backup syslog
+ servers
+- modified rklogd to only change the console log level if -c is specified
+- added feature to use multiple actions inside a single selector
+- implemented $ActionExecOnlyWhenPreviousIsSuspended config directive
+- error messages during startup are now spit out to the configured log
+ destinations
+---------------------------------------------------------------------------
+Version 1.17.6 (rgerhards), 2007-08-01
+- continued to work on output module modularization - basic stage of
+ this work is now FINISHED
+- fixed bug in OMSRcreate() - always returned SR_RET_OK
+- fixed a bug that caused ommysql to always complain about missing
+ templates
+- fixed a mem leak in OMSRdestruct - freeing the object itself was
+ forgotten - thanks to varmojfekoj for the patch
+- fixed a memory leak in syslogd/init() that happened when the config
+ file could not be read - thanks to varmojfekoj for the patch
+- fixed insufficient memory allocation in addAction() and its helpers.
+ The initial fix and idea was developed by mildew, I fine-tuned
+ it a bit. Thanks a lot for the fix, I'd probably had pulled out my
+ hair to find the bug...
+- added output of config file line number when a parsing error occurred
+- fixed bug in objomsr.c that caused program to abort in debug mode with
+ an invalid assertion (in some cases)
+- fixed a typo that caused the default template for MySQL to be wrong.
+ thanks to mildew for catching this.
+- added configuration file command $DebugPrintModuleList and
+ $DebugPrintCfSysLineHandlerList
+- fixed an invalid value for the MARK timer - unfortunately, there was
+ a testing aid left in place. This resulted in quite frequent MARK messages
+- added $IncludeConfig config directive
+- applied a patch from mildew to prevent rsyslogd from freezing under heavy
+ load. This could happen when the queue was full. Now, we drop messages
+ but rsyslogd remains active.
+---------------------------------------------------------------------------
+Version 1.17.5 (rgerhards), 2007-07-30
+- continued to work on output module modularization
+- fixed a missing file bug - thanks to Andrea Montanari for reporting
+ this problem
+- fixed a problem with shutting down the worker thread and freeing the
+ selector_t list - this caused messages to be lost, because the
+ message queue was not properly drained before the selectors got
+ destroyed.
+---------------------------------------------------------------------------
+Version 1.17.4 (rgerhards), 2007-07-27
+- continued to work on output module modularization
+- fixed a situation where rsyslogd could create zombie processes
+ thanks to mildew for the patch
+- applied patch from Michel Samia to fix compilation when NOT
+ compiled for pthreads
+---------------------------------------------------------------------------
+Version 1.17.3 (rgerhards), 2007-07-25
+- continued working on output module modularization
+- fixed a bug that caused rsyslogd to segfault on exit (and
+ probably also on HUP), when there was an unsent message in a selector
+ that required forwarding and the dns lookup failed for that selector
+ (yes, it was pretty unlikely to happen;))
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- fixed a memory leak in config file parsing and die()
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- rsyslogd now checks on startup if it is capable to perform any work
+ at all. If it cant, it complains and terminates
+ thanks to Michel Samia for providing the patch!
+- fixed a small memory leak when HUPing syslogd. The allowed sender
+ list now gets freed. thanks to mildew for the patch.
+- changed the way error messages in early startup are logged. They
+ now do no longer use the syslogd code directly but are rather
+ send to stderr.
+---------------------------------------------------------------------------
+Version 1.17.2 (rgerhards), 2007-07-23
+- made the port part of the -r option optional. Needed for backward
+ compatibility with sysklogd
+- replaced system() calls with something more reasonable. Please note that
+ this might break compatibility with some existing configuration files.
+ We accept this in favor of the gained security.
+- removed a memory leak that could occur if timegenerated was used in
+ RFC 3164 format in templates
+- did some preparation in msg.c for advanced multithreading - placed the
+ hooks, but not yet any active code
+- worked further on modularization
+- added $ModLoad MySQL (dummy) config directive
+- added DropTrailingLFOnReception config directive
+---------------------------------------------------------------------------
+Version 1.17.1 (rgerhards), 2007-07-20
+- fixed a bug that caused make install to install rsyslogd and rklogd under
+ the wrong names
+- fixed bug that caused $AllowedSenders to handle IPv6 scopes incorrectly;
+ also fixed but that could garble $AllowedSender wildcards. Thanks to
+ mildew@gmail.com for the patch
+- minor code cleanup - thanks to Peter Vrabec for the patch
+- fixed minimal memory leak on HUP (caused by templates)
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- fixed another memory leak on HUPing and on exiting rsyslogd
+ again thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- code cleanup (removed compiler warnings)
+- fixed portability bug in configure.ac - thanks to Bartosz Kuźma for patch
+- moved msg object into its own file set
+- added the capability to continue trying to write log files when the
+ file system is full. Functionality based on patch by Martin Schulze
+ to sysklogd package.
+---------------------------------------------------------------------------
+Version 1.17.0 (RGer), 2007-07-17
+- added $RepeatedLineReduction config parameter
+- added $EscapeControlCharactersOnReceive config parameter
+- added $ControlCharacterEscapePrefix config parameter
+- added $DirCreateMode config parameter
+- added $CreateDirs config parameter
+- added $DebugPrintTemplateList config parameter
+- added $ResetConfigVariables config parameter
+- added $FileOwner config parameter
+- added $FileGroup config parameter
+- added $DirOwner config parameter
+- added $DirGroup config parameter
+- added $FailOnChownFailure config parameter
+- added regular expression support to the filter engine
+ thanks to Michel Samia for providing the patch!
+- enhanced $AllowedSender functionality. Credits to mildew@gmail.com for
+ the patch doing that
+ - added IPv6 support
+ - allowed DNS hostnames
+ - allowed DNS wildcard names
+- added new option $DropMsgsWithMaliciousDnsPTRRecords
+- added autoconf so that rfc3195d, rsyslogd and klogd are stored to /sbin
+- added capability to auto-create directories with dynaFiles
+---------------------------------------------------------------------------
+Version 1.16.0 (RGer/Peter Vrabec), 2007-07-13 - The Friday, 13th Release ;)
+- build system switched to autotools
+- removed SYSV preprocessor macro use, replaced with autotools equivalents
+- fixed a bug that caused rsyslogd to segfault when TCP listening was
+ disabled and it terminated
+- added new properties "syslogfacility-text" and "syslogseverity-text"
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- added the -x option to disable hostname dns resolution
+ thanks to varmojfekoj <varmojfekoj@gmail.com> for the patch
+- begun to better modularize syslogd.c - this is an ongoing project; moved
+ type definitions to a separate file
+- removed some now-unused fields from struct filed
+- move file size limit fields in struct field to the "right spot" (the file
+ writing part of the union - f_un.f_file)
+- subdirectories linux and solaris are no longer part of the distribution
+ package. This is not because we cease support for them, but there are no
+ longer any files in them after the move to autotools
+---------------------------------------------------------------------------
+Version 1.15.1 (RGer), 2007-07-10
+- fixed a bug that caused a dynaFile selector to stall when there was
+ an open error with one file
+- improved template processing for dynaFiles; templates are now only
+ looked up during initialization - speeds up processing
+- optimized memory layout in struct filed when compiled with MySQL
+ support
+- fixed a bug that caused compilation without SYSLOG_INET to fail
+- re-enabled the "last message repeated n times" feature. This
+ feature was not taken care of while rsyslogd evolved from sysklogd
+ and it was more or less defunct. Now it is fully functional again.
+- added system properties: $NOW, $YEAR, $MONTH, $DAY, $HOUR, $MINUTE
+- fixed a bug in iovAsString() that caused a memory leak under stress
+ conditions (most probably memory shortage). This was unlikely to
+ ever happen, but it doesn't hurt doing it right
+- cosmetic: defined type "uchar", change all unsigned chars to uchar
+---------------------------------------------------------------------------
+Version 1.15.0 (RGer), 2007-07-05
+- added ability to dynamically generate file names based on templates
+ and thus properties. This was a much-requested feature. It makes
+ life easy when it e.g. comes to splitting files based on the sender
+ address.
+- added $umask and $FileCreateMode config file directives
+- applied a patch from Bartosz Kuzma to compile cleanly under NetBSD
+- checks for extra (unexpected) characters in system config file lines
+ have been added
+- added IPv6 documentation - was accidentally missing from CVS
+- begun to change char to unsigned char
+---------------------------------------------------------------------------
+Version 1.14.2 (RGer), 2007-07-03
+** this release fixes all known nits with IPv6 **
+- restored capability to do /etc/service lookup for "syslog"
+ service when -r 0 was given
+- documented IPv6 handling of syslog messages
+- integrate patch from Bartosz Kuźma to make rsyslog compile under
+ Solaris again (the patch replaced a strndup() call, which is not
+ available under Solaris
+- improved debug logging when waiting on select
+- updated rsyslogd man page with new options (-46A)
+---------------------------------------------------------------------------
+Version 1.14.1 (RGer/Peter Vrabec), 2007-06-29
+- added Peter Vrabec's patch for IPv6 TCP
+- prefixed all messages send to stderr in rsyslogd with "rsyslogd: "
+---------------------------------------------------------------------------
+Version 1.14.0 (RGer/Peter Vrabec), 2007-06-28
+- Peter Vrabec provided IPv6 for rsyslog, so we are now IPv6 enabled
+ IPv6 Support is currently for UDP only, TCP is to come soon.
+ AllowedSender configuration does not yet work for IPv6.
+- fixed code in iovCreate() that broke C's strict aliasing rules
+- fixed some char/unsigned char differences that forced the compiler
+ to spit out warning messages
+- updated the Red Hat init script to fix a known issue (thanks to
+ Peter Vrabec)
+---------------------------------------------------------------------------
+Version 1.13.5 (RGer), 2007-06-22
+- made the TCP session limit configurable via command line switch
+ now -t <port>,<max sessions>
+- added man page for rklogd(8) (basically a copy from klogd, but now
+ there is one...)
+- fixed a bug that caused internal messages (e.g. rsyslogd startup) to
+ appear without a tag.
+- removed a minor memory leak that occurred when TAG processing requalified
+ a HOSTNAME to be a TAG (and a TAG already was set).
+- removed potential small memory leaks in MsgSet***() functions. There
+ would be a leak if a property was re-set, something that happened
+ extremely seldom.
+---------------------------------------------------------------------------
+Version 1.13.4 (RGer), 2007-06-18
+- added a new property "PRI-text", which holds the PRI field in
+ textual form (e.g. "syslog.info")
+- added alias "syslogseverity" for "syslogpriority", which is a
+ misleading property name that needs to stay for historical
+ reasons (and backward-compatibility)
+- added doc on how to record PRI value in log file
+- enhanced signal handling in klogd, including removal of an unsafe
+ call to the logging system during signal handling
+---------------------------------------------------------------------------
+Version 1.13.3 (RGer), 2007-06-15
+- create a version of syslog.c from scratch. This is now
+ - highly optimized for rsyslog
+ - removes an incompatible license problem as the original
+ version had a BSD license with advertising clause
+ - fixed in the regard that rklogd will continue to work when
+ rsyslogd has been restarted (the original version, as well
+ as sysklogd, will remain silent then)
+ - solved an issue with an extra NUL char at message end that the
+ original version had
+- applied some changes to klogd to care for the new interface
+- fixed a bug in syslogd.c which prevented compiling under debian
+---------------------------------------------------------------------------
+Version 1.13.2 (RGer), 2007-06-13
+- lib order in makefile patched to facilitate static linking - thanks
+ to Bennett Todd for providing the patch
+- Integrated a patch from Peter Vrabec (pvrabec@redhat.com):
+ - added klogd under the name of rklogd (remove dependency on
+ original sysklogd package
+ - createDB.sql now in UTF
+ - added additional config files for use on Red Hat
+---------------------------------------------------------------------------
+Version 1.13.1 (RGer), 2007-02-05
+- changed the listen backlog limit to a more reasonable value based on
+ the maximum number of TCP connections configured (10% + 5) - thanks to Guy
+ Standen for the hint (actually, the limit was 5 and that was a
+ left-over from early testing).
+- fixed a bug in makefile which caused DB-support to be disabled when
+ NETZIP support was enabled
+- added the -e option to allow transmission of every message to remote
+ hosts (effectively turns off duplicate message suppression)
+- (somewhat) improved memory consumption when compiled with MySQL support
+- looks like we fixed an incompatibility with MySQL 5.x and above software
+ At least in one case, the remote server name was destroyed, leading to
+ a connection failure. The new, improved code does not have this issue and
+ so we see this as solved (the new code is generally somewhat better, so
+ there is a good chance we fixed this incompatibility).
+---------------------------------------------------------------------------
+Version 1.13.0 (RGer), 2006-12-19
+- added '$' as ToPos property replacer specifier - means "up to the
+ end of the string"
+- property replacer option "escape-cc", "drop-cc" and "space-cc" added
+- changed the handling of \0 characters inside syslog messages. We now
+ consistently escape them to "#000". This is somewhat recommended in
+ the draft-ietf-syslog-protocol-19 draft. While the real recommendation
+ is to not escape any characters at all, we can not do this without
+ considerable modification of the code. So we escape it to "#000", which
+ is consistent with a sample found in the Internet-draft.
+- removed message glue logic (see printchopped() comment for details)
+ Also caused removal of parts table and thus some improvements in
+ memory usage.
+- changed the default MAXLINE to 2048 to take care of recent syslog
+ standardization efforts (can easily be changed in syslogd.c)
+- added support for byte-counted TCP syslog messages (much like
+ syslog-transport-tls-05 Internet Draft). This was necessary to
+ support compression over TCP.
+- added support for receiving compressed syslog messages
+- added support for sending compressed syslog messages
+- fixed a bug where the last message in a syslog/tcp stream was
+ lost if it was not properly terminated by a LF character
+---------------------------------------------------------------------------
+Version 1.12.3 (RGer), 2006-10-04
+- implemented some changes to support Solaris (but support is not
+ yet complete)
+- commented out (via #if 0) some methods that are currently not being use
+ but should be kept for further us
+- added (interim) -u 1 option to turn off hostname and tag parsing
+- done some modifications to better support Fedora
+- made the field delimiter inside property replace configurable via
+ template
+- fixed a bug in property replacer: if fields were used, the delimitor
+ became part of the field. Up until now, this was barely noticeable as
+ the delimiter as TAB only and thus invisible to a human. With other
+ delimiters available now, it quickly showed up. This bug fix might cause
+ some grief to existing installations if they used the extra TAB for
+ whatever reasons - sorry folks... Anyhow, a solution is easy: just add
+ a TAB character constant into your template. Thus, there has no attempt
+ been made to do this in a backwards-compatible way.
+---------------------------------------------------------------------------
+Version 1.12.2 (RGer), 2006-02-15
+- fixed a bug in the RFC 3339 date formatter. An extra space was added
+ after the actual timestamp
+- added support for providing high-precision RFC3339 timestamps for
+ (rsyslogd-)internally-generated messages
+- very (!) experimental support for syslog-protocol internet draft
+ added (the draft is experimental, the code is solid ;))
+- added support for field-extracting in the property replacer
+- enhanced the legacy-syslog parser so that it can interpret messages
+ that do not contain a TIMESTAMP
+- fixed a bug that caused the default socket (usually /dev/log) to be
+ opened even when -o command line option was given
+- fixed a bug in the Debian sample startup script - it caused rsyslogd
+ to listen to remote requests, which it shouldn't by default
+---------------------------------------------------------------------------
+Version 1.12.1 (RGer), 2005-11-23
+- made multithreading work with BSD. Some signal-handling needed to be
+ restructured. Also, there might be a slight delay of up to 10 seconds
+ when huping and terminating rsyslogd under BSD
+- fixed a bug where a NULL-pointer was passed to printf() in logmsg().
+- fixed a bug during "make install" where rc3195d was not installed
+ Thanks to Bennett Todd for spotting this.
+- fixed a bug where rsyslogd dumped core when no TAG was found in the
+ received message
+- enhanced message parser so that it can deal with missing hostnames
+ in many cases (may not be totally fail-safe)
+- fixed a bug where internally-generated messages did not have the correct
+ TAG
+---------------------------------------------------------------------------
+Version 1.12.0 (RGer), 2005-10-26
+- moved to a multi-threaded design. single-threading is still optionally
+ available. Multi-threading is experimental!
+- fixed a potential race condition. In the original code, marking was done
+ by an alarm handler, which could lead to all sorts of bad things. This
+ has been changed now. See comments in syslogd.c/domark() for details.
+- improved debug output for property-based filters
+- not a code change, but: I have checked all exit()s to make sure that
+ none occurs once rsyslogd has started up. Even in unusual conditions
+ (like low-memory conditions) rsyslogd somehow remains active. Of course,
+ it might loose a message or two, but at least it does not abort and it
+ can also recover when the condition no longer persists.
+- fixed a bug that could cause loss of the last message received
+ immediately before rsyslogd was terminated.
+- added comments on thread-safety of global variables in syslogd.c
+- fixed a small bug: spurios printf() when TCP syslog was used
+- fixed a bug that causes rsyslogd to dump core on termination when one
+ of the selector lines did not receive a message during the run (very
+ unlikely)
+- fixed an one-too-low memory allocation in the TCP sender. Could result
+ in rsyslogd dumping core.
+- fixed a bug with regular expression support (thanks to Andres Riancho)
+- a little bit of code restructuring (especially main(), which was
+ horribly large)
+---------------------------------------------------------------------------
+Version 1.11.1 (RGer), 2005-10-19
+- support for BSD-style program name and host blocks
+- added a new property "programname" that can be used in templates
+- added ability to specify listen port for rfc3195d
+- fixed a bug that rendered the "startswith" comparison operation
+ unusable.
+- changed more functions to "static" storage class to help compiler
+ optimize (should have been static in the first place...)
+- fixed a potential memory leak in the string buffer class destructor.
+ As the destructor was previously never called, the leak did not actually
+ appear.
+- some internal restructuring in anticipation/preparation of minimal
+ multi-threading support
+- rsyslogd still shares some code with the sysklogd project. Some patches
+ for this shared code have been brought over from the sysklogd CVS.
+---------------------------------------------------------------------------
+Version 1.11.0 (RGer), 2005-10-12
+- support for receiving messages via RFC 3195; added rfc3195d for that
+ purpose
+- added an additional guard to prevent rsyslogd from aborting when the
+ 2gb file size limit is hit. While a user can configure rsyslogd to
+ handle such situations, it would abort if that was not done AND large
+ file support was not enabled (ok, this is hopefully an unlikely scenario)
+- fixed a bug that caused additional Unix domain sockets to be incorrectly
+ processed - could lead to message loss in extreme cases
+---------------------------------------------------------------------------
+Version 1.10.2 (RGer), 2005-09-27
+- added comparison operations in property-based filters:
+ * isequal
+ * startswith
+- added ability to negate all property-based filter comparison operations
+ by adding a !-sign right in front of the operation name
+- added the ability to specify remote senders for UDP and TCP
+ received messages. Allows to block all but well-known hosts
+- changed the $-config line directives to be case-INsensitive
+- new command line option -w added: "do not display warnings if messages
+ from disallowed senders are received"
+- fixed a bug that caused rsyslogd to dump core when the compare value
+ was not quoted in property-based filters
+- fixed a bug in the new CStr compare function which lead to invalid
+ results (fortunately, this function was not yet used widely)
+- added better support for "debugging" rsyslog.conf property filters
+ (only if -d switch is given)
+- changed some function definitions to static, which eventually enables
+ some compiler optimizations
+- fixed a bug in MySQL code; when a SQL error occurred, rsyslogd could
+ run in a tight loop. This was due to invalid sequence of error reporting
+ and is now fixed.
+---------------------------------------------------------------------------
+Version 1.10.1 (RGer), 2005-09-23
+- added the ability to execute a shell script as an action.
+ Thanks to Bjoern Kalkbrenner for providing the code!
+- fixed a bug in the MySQL code; due to the bug the automatic one-time
+ retry after an error did not happen - this lead to error message in
+ cases where none should be seen (e.g. after a MySQL restart)
+- fixed a security issue with SQL-escaping in conjunction with
+ non-(SQL-)standard MySQL features.
+---------------------------------------------------------------------------
+Version 1.10.0 (RGer), 2005-09-20
+ REMINDER: 1.10 is the first unstable version if the 1.x series!
+- added the capability to filter on any property in selector lines
+ (not just facility and priority)
+- changed stringbuf into a new counted string class
+- added support for a "discard" action. If a selector line with
+ discard (~ character) is found, no selector lines *after* that
+ line will be processed.
+- thanks to Andres Riancho, regular expression support has been
+ added to the template engine
+- added the FROMHOST property in the template processor, which could
+ previously not be obtained. Thanks to Cristian Testa for pointing
+ this out and even providing a fix.
+- added display of compile-time options to -v output
+- performance improvement for production build - made some checks
+ to happen only during debug mode
+- fixed a problem with compiling on SUSE and - while doing so - removed
+ the socket call to set SO_BSDCOMPAT in cases where it is obsolete.
+---------------------------------------------------------------------------
+Version 1.0.4 (RGer), 2006-02-01
+- a small but important fix: the tcp receiver had two forgotten printf's
+ in it that caused a lot of unnecessary output to stdout. This was
+ important enough to justify a new release
+---------------------------------------------------------------------------
+Version 1.0.3 (RGer), 2005-11-14
+- added an additional guard to prevent rsyslogd from aborting when the
+ 2gb file size limit is hit. While a user can configure rsyslogd to
+ handle such situations, it would abort if that was not done AND large
+ file support was not enabled (ok, this is hopefully an unlikely scenario)
+- fixed a bug that caused additional Unix domain sockets to be incorrectly
+ processed - could lead to message loss in extreme cases
+- applied some patches available from the sysklogd project to code
+ shared from there
+- fixed a bug that causes rsyslogd to dump core on termination when one
+ of the selector lines did not receive a message during the run (very
+ unlikely)
+- fixed an one-too-low memory allocation in the TCP sender. Could result
+ in rsyslogd dumping core.
+- fixed a bug in the TCP sender that caused the retry logic to fail
+ after an error or receiver overrun
+- fixed a bug in init() that could lead to dumping core
+- fixed a bug that could lead to dumping core when no HOSTNAME or no TAG
+ was present in the syslog message
+---------------------------------------------------------------------------
+Version 1.0.2 (RGer), 2005-10-05
+- fixed an issue with MySQL error reporting. When an error occurred,
+ the MySQL driver went into an endless loop (at least in most cases).
+---------------------------------------------------------------------------
+Version 1.0.1 (RGer), 2005-09-23
+- fixed a security issue with SQL-escaping in conjunction with
+ non-(SQL-)standard MySQL features.
+---------------------------------------------------------------------------
+Version 1.0.0 (RGer), 2005-09-12
+- changed install doc to cover daily cron scripts - a trouble source
+- added rc script for slackware (provided by Chris Elvidge - thanks!)
+- fixed a really minor bug in usage() - the -r option was still
+ reported as without the port parameter
+---------------------------------------------------------------------------
+Version 0.9.8 (RGer), 2005-09-05
+- made startup and shutdown message more consistent and included the
+ pid, so that they can be easier correlated. Used syslog-protocol
+ structured data format for this purpose.
+- improved config info in startup message, now tells not only
+ if it is listening remote on udp, but also for tcp. Also includes
+ the port numbers. The previous startup message was misleading, because
+ it did not say "remote reception" if rsyslogd was only listening via
+ tcp (but not via udp).
+- added a "how can you help" document to the doc set
+---------------------------------------------------------------------------
+Version 0.9.7 (RGer), 2005-08-15
+- some of the previous doc files (like INSTALL) did not properly
+ reflect the changes to the build process and the new doc. Fixed
+ that.
+- changed syslogd.c so that when compiled without database support,
+ an error message is displayed when a database action is detected
+ in the config file (previously this was used as an user rule ;))
+- fixed a bug in the os-specific Makefiles which caused MySQL
+ support to not be compiled, even if selected
+---------------------------------------------------------------------------
+Version 0.9.6 (RGer), 2005-08-09
+- greatly enhanced documentation. Now available in html format in
+ the "doc" folder and FreeBSD. Finally includes an install howto.
+- improved MySQL error messages a little - they now show up as log
+ messages, too (formerly only in debug mode)
+- added the ability to specify the listen port for udp syslog.
+ WARNING: This introduces an incompatibility. Formerly, udp
+ syslog was enabled by the -r command line option. Now, it is
+ "-r [port]", which is consistent with the tcp listener. However,
+ just -r will now return an error message.
+- added sample startup scripts for Debian and FreeBSD
+- added support for easy feature selection in the makefile. Un-
+ fortunately, this also means I needed to spilt the make file
+ for different OS and distros. There are some really bad syntax
+ differences between FreeBSD and Linux make.
+---------------------------------------------------------------------------
+Version 0.9.5 (RGer), 2005-08-01
+- the "semicolon bug" was actually not (fully) solved in 0.9.4. One
+ part of the bug was solved, but another still existed. This one
+ is fixed now, too.
+- the "semicolon bug" actually turned out to be a more generic bug.
+ It appeared whenever an invalid template name was given. With some
+ selector actions, rsyslogd dumped core, with other it "just" had
+ a small resource leak with others all worked well. These anomalies
+ are now fixed. Note that they only appeared during system initialization
+ once the system was running, nothing bad happened.
+- improved error reporting for template errors on startup. They are now
+ shown on the console and the start-up tty. Formerly, they were only
+ visible in debug mode.
+- support for multiple instances of rsyslogd on a single machine added
+- added new option "-o" --> omit local unix domain socket. This option
+ enables rsyslogd NOT to listen to the local socket. This is most
+ helpful when multiple instances of rsyslogd (or rsyslogd and another
+ syslogd) shall run on a single system.
+- added new option "-i <pidfile>" which allows one to specify the pidfile.
+ This is needed when multiple instances of rsyslogd are to be run.
+- the new project home page is now online at www.rsyslog.com
+---------------------------------------------------------------------------
+Version 0.9.4 (RGer), 2005-07-25
+- finally added the TCP sender. It now supports non-blocking mode, no
+ longer disabling message reception during connect. As it is now, it
+ is usable in production. The code could be more sophisticated, but
+ I've kept it short in anticipation of the move to liblogging, which
+ will lead to the removal of the code just written ;)
+- the "exiting on signal..." message still had the "syslogd" name in
+ it. Changed this to "rsyslogd", as we do not have a large user base
+ yet, this should pose no problem.
+- fixed "the semicolon" bug. rsyslogd dumped core if a write-db action
+ was specified but no semicolon was given after the password (an empty
+ template was ok, but the semicolon needed to be present).
+- changed a default for traditional output format. During testing, it
+ was seen that the timestamp written to file in default format was
+ the time of message reception, not the time specified in the TIMESTAMP
+ field of the message itself. Traditionally, the message TIMESTAMP is
+ used and this has been changed now.
+---------------------------------------------------------------------------
+Version 0.9.3 (RGer), 2005-07-19
+- fixed a bug in the message parser. In June, the RFC 3164 timestamp
+ was not correctly parsed (yes, only in June and some other months,
+ see the code comment to learn why...)
+- added the ability to specify the destination port when forwarding
+ syslog messages (both for TCP and UDP)
+- added an very experimental TCP sender (activated by
+ @@machine:port in config). This is not yet for production use. If
+ the receiver is not alive, rsyslogd will wait quite some time until
+ the connection request times out, which most probably leads to
+ loss of incoming messages.
+
+---------------------------------------------------------------------------
+Version 0.9.2 (RGer), around 2005-07-06
+- I intended to change the maxsupported message size to 32k to
+ support IHE - but given the memory inefficiency in the usual use
+ cases, I have not done this. I have, however, included very
+ specific instructions on how to do this in the source code. I have
+ also done some testing with 32k messages, so you can change the
+ max size without taking too much risk.
+- added a syslog/tcp receiver; we now can receive messages via
+ plain tcp, but we can still send only via UDP. The syslog/tcp
+ receiver is the primary enhancement of this release.
+- slightly changed some error messages that contained a spurios \n at
+ the end of the line (which gives empty lines in your log...)
+
+---------------------------------------------------------------------------
+Version 0.9.1 (RGer)
+- fixed code so that it compiles without errors under FreeBSD
+- removed now unused function "allocate_log()" from syslogd.c
+- changed the make file so that it contains more defines for
+ different environments (in the long term, we need a better
+ system for disabling/enabling features...)
+- changed some printf's printing off_t types to %lld and
+ explicit (long long) casts. I tried to figure out the exact type,
+ but did not succeed in this. In the worst case, ultra-large peta-
+ byte files will now display funny informational messages on rollover,
+ something I think we can live with for the next 10 years or so...
+
+---------------------------------------------------------------------------
+Version 0.9.0 (RGer)
+- changed the filed structure to be a linked list. Previously, it
+ was a table - well, for non-SYSV it was defined as linked list,
+ but from what I see that code did no longer work after my
+ modifications. I am now using a linked list in general because
+ that is needed for other upcoming modifications.
+- fixed a bug that caused rsyslogd not to listen to anything if
+ the configuration file could not be read
+- previous versions disabled network logging (send/receive) if
+ syslog/udp port was not in /etc/services. Now defaulting to
+ port 514 in this case.
+- internal error messages are now supported up to 256 bytes
+- error message seen during config file read are now also displayed
+ to the attached tty and not only the console
+- changed some error messages during init to be sent to the console
+ and/or emergency log. Previously, they were only seen if the
+ -d (debug) option was present on the command line.
+- fixed the "2gb file issue on 32bit systems". If a file grew to
+ more than 2gb, the syslogd was aborted with "file size exceeded".
+ Now, defines have been added according to
+ http://www.daimi.au.dk/~kasperd/comp.os.linux.development.faq.html#LARGEFILE
+ Testing revealed that they work ;)
+ HOWEVER, if your file system, glibc, kernel, whatever does not
+ support files larger 2gb, you need to set a file size limit with
+ the new output channel mechanism.
+- updated man pages to reflect the changes
+
+---------------------------------------------------------------------------
+Version 0.8.4
+
+- improved -d debug output (removed developer-only content)
+- now compiles under FreeBSD and NetBSD (only quick testing done on NetBSD)
+---------------------------------------------------------------------------
+Version 0.8.3
+
+- security model in "make install" changed
+- minor doc updates
+---------------------------------------------------------------------------
+Version 0.8.2
+
+- added man page for rsyslog.conf and rsyslogd
+- gave up on the concept of rsyslog being a "drop in" replacement
+ for syslogd. Now, the user installs rsyslogd and also needs to
+ adjust his system settings to this specifically. This also lead
+ to these changes:
+ * changed Makefile so that install now installs rsyslogd instead
+ of dealing with syslogd
+ * changed the default config file name to rsyslog.conf
+---------------------------------------------------------------------------
+Version 0.8.1
+
+- fixed a nasty memory leak (probably not the last one with this release)
+- some enhancements to Makefile as suggested by Bennett Todd
+- syslogd-internal messages (like restart) were missing the hostname
+ this has been corrected
+---------------------------------------------------------------------------
+Version 0.8.0
+
+Initial testing release. Based on the sysklogd package. Thanks to the
+sysklogd maintainers for all their good work!
+---------------------------------------------------------------------------
+
+----------------------------------------------------------------------
+The following comments were left in the syslogd source. While they provide
+not too much detail, the help to date when Rainer started work on the
+project (which was 2003, now even surprising for Rainer himself ;)).
+ * \author Rainer Gerhards <rgerhards@adiscon.com>
+ * \date 2003-10-17
+ * Some initial modifications on the sysklogd package to support
+ * liblogging. These have actually not yet been merged to the
+ * source you see currently (but they hopefully will)
+ *
+ * \date 2004-10-28
+ * Restarted the modifications of sysklogd. This time, we
+ * focus on a simpler approach first. The initial goal is to
+ * provide MySQL database support (so that syslogd can log
+ * to the database).
+----------------------------------------------------------------------
+The following comments are from the stock syslogd.c source. They provide
+some insight into what happened to the source before we forked
+rsyslogd. However, much of the code already has been replaced and more
+is to be replaced. So over time, these comments become less valuable.
+I have moved them out of the syslogd.c file to shrink it, especially
+as a lot of them do no longer apply. For historical reasons and
+understanding of how the daemon evolved, they are probably still
+helpful.
+ * Author: Eric Allman
+ * extensive changes by Ralph Campbell
+ * more extensive changes by Eric Allman (again)
+ *
+ * Steve Lord: Fix UNIX domain socket code, added linux kernel logging
+ * change defines to
+ * SYSLOG_INET - listen on a UDP socket
+ * SYSLOG_UNIXAF - listen on unix domain socket
+ * SYSLOG_KERNEL - listen to linux kernel
+ *
+ * Mon Feb 22 09:55:42 CST 1993: Dr. Wettstein
+ * Additional modifications to the source. Changed priority scheme
+ * to increase the level of configurability. In its stock configuration
+ * syslogd no longer logs all messages of a certain priority and above
+ * to a log file. The * wildcard is supported to specify all priorities.
+ * Note that this is a departure from the BSD standard.
+ *
+ * Syslogd will now listen to both the inetd and the unixd socket. The
+ * strategy is to allow all local programs to direct their output to
+ * syslogd through the unixd socket while the program listens to the
+ * inetd socket to get messages forwarded from other hosts.
+ *
+ * Fri Mar 12 16:55:33 CST 1993: Dr. Wettstein
+ * Thanks to Stephen Tweedie (dcs.ed.ac.uk!sct) for helpful bug-fixes
+ * and an enlightened commentary on the prioritization problem.
+ *
+ * Changed the priority scheme so that the default behavior mimics the
+ * standard BSD. In this scenario all messages of a specified priority
+ * and above are logged.
+ *
+ * Add the ability to specify a wildcard (=) as the first character
+ * of the priority name. Doing this specifies that ONLY messages with
+ * this level of priority are to be logged. For example:
+ *
+ * *.=debug /usr/adm/debug
+ *
+ * Would log only messages with a priority of debug to the /usr/adm/debug
+ * file.
+ *
+ * Providing an * as the priority specifies that all messages are to be
+ * logged. Note that this case is degenerate with specifying a priority
+ * level of debug. The wildcard * was retained because I believe that
+ * this is more intuitive.
+ *
+ * Thu Jun 24 11:34:13 CDT 1993: Dr. Wettstein
+ * Modified sources to incorporate changes in libc4.4. Messages from
+ * syslog are now null-terminated, syslogd code now parses messages
+ * based on this termination scheme. Linux as of libc4.4 supports the
+ * fsync system call. Modified code to fsync after all writes to
+ * log files.
+ *
+ * Sat Dec 11 11:59:43 CST 1993: Dr. Wettstein
+ * Extensive changes to the source code to allow compilation with no
+ * complaints with -Wall.
+ *
+ * Reorganized the facility and priority name arrays so that they
+ * compatible with the syslog.h source found in /usr/include/syslog.h.
+ * NOTE that this should really be changed. The reason I do not
+ * allow the use of the values defined in syslog.h is on account of
+ * the extensions made to allow the wildcard character in the
+ * priority field. To fix this properly one should malloc an array,
+ * copy the contents of the array defined by syslog.h and then
+ * make whatever modifications that are desired. Next round.
+ *
+ * Thu Jan 6 12:07:36 CST 1994: Dr. Wettstein
+ * Added support for proper decomposition and re-assembly of
+ * fragment messages on UNIX domain sockets. Lack of this capability
+ * was causing 'partial' messages to be output. Since facility and
+ * priority information is encoded as a leader on the messages this
+ * was causing lines to be placed in erroneous files.
+ *
+ * Also added a patch from Shane Alderton (shane@ion.apana.org.au) to
+ * correct a problem with syslogd dumping core when an attempt was made
+ * to write log messages to a logged-on user. Thank you.
+ *
+ * Many thanks to Juha Virtanen (jiivee@hut.fi) for a series of
+ * interchanges which lead to the fixing of problems with messages set
+ * to priorities of none and emerg. Also thanks to Juha for a patch
+ * to exclude users with a class of LOGIN from receiving messages.
+ *
+ * Shane Alderton provided an additional patch to fix zombies which
+ * were conceived when messages were written to multiple users.
+ *
+ * Mon Feb 6 09:57:10 CST 1995: Dr. Wettstein
+ * Patch to properly reset the single priority message flag. Thanks
+ * to Christopher Gori for spotting this bug and forwarding a patch.
+ *
+ * Wed Feb 22 15:38:31 CST 1995: Dr. Wettstein
+ * Added version information to startup messages.
+ *
+ * Added defines so that paths to important files are taken from
+ * the definitions in paths.h. Hopefully this will insure that
+ * everything follows the FSSTND standards. Thanks to Chris Metcalf
+ * for a set of patches to provide this functionality. Also thanks
+ * Elias Levy for prompting me to get these into the sources.
+ *
+ * Wed Jul 26 18:57:23 MET DST 1995: Martin Schulze
+ * Linux' gethostname only returns the hostname and not the fqdn as
+ * expected in the code. But if you call hostname with an fqdn then
+ * gethostname will return an fqdn, so we have to mention that. This
+ * has been changed.
+ *
+ * The 'LocalDomain' and the hostname of a remote machine is
+ * converted to lower case, because the original caused some
+ * inconsistency, because the (at least my) nameserver did respond an
+ * fqdn containing of upper- _and_ lowercase letters while
+ * 'LocalDomain' consisted only of lowercase letters and that didn't
+ * match.
+ *
+ * Sat Aug 5 18:59:15 MET DST 1995: Martin Schulze
+ * Now no messages that were received from any remote host are sent
+ * out to another. At my domain this missing feature caused ugly
+ * syslog-loops, sometimes.
+ *
+ * Remember that no message is sent out. I can't figure out any
+ * scenario where it might be useful to change this behavior and to
+ * send out messages to other hosts than the one from which we
+ * received the message, but I might be shortsighted. :-/
+ *
+ * Thu Aug 10 19:01:08 MET DST 1995: Martin Schulze
+ * Added my pidfile.[ch] to it to perform a better handling with
+ * pidfiles. Now both, syslogd and klogd, can only be started
+ * once. They check the pidfile.
+ *
+ * Sun Aug 13 19:01:41 MET DST 1995: Martin Schulze
+ * Add an addition to syslog.conf's interpretation. If a priority
+ * begins with an exclamation mark ('!') the normal interpretation
+ * of the priority is inverted: ".!*" is the same as ".none", ".!=info"
+ * don't logs the info priority, ".!crit" won't log any message with
+ * the priority crit or higher. For example:
+ *
+ * mail.*;mail.!=info /usr/adm/mail
+ *
+ * Would log all messages of the facility mail except those with
+ * the priority info to /usr/adm/mail. This makes the syslogd
+ * much more flexible.
+ *
+ * Defined TABLE_ALLPRI=255 and changed some occurrences.
+ *
+ * Sat Aug 19 21:40:13 MET DST 1995: Martin Schulze
+ * Making the table of facilities and priorities while in debug
+ * mode more readable.
+ *
+ * If debugging is turned on, printing the whole table of
+ * facilities and priorities every hexadecimal or 'X' entry is
+ * now 2 characters wide.
+ *
+ * The number of the entry is prepended to each line of
+ * facilities and priorities, and F_UNUSED lines are not shown
+ * anymore.
+ *
+ * Corrected some #ifdef SYSV's.
+ *
+ * Mon Aug 21 22:10:35 MET DST 1995: Martin Schulze
+ * Corrected a strange behavior during parsing of configuration
+ * file. The original BSD syslogd doesn't understand spaces as
+ * separators between specifier and action. This syslogd now
+ * understands them. The old behavior caused some confusion over
+ * the Linux community.
+ *
+ * Thu Oct 19 00:02:07 MET 1995: Martin Schulze
+ * The default behavior has changed for security reasons. The
+ * syslogd will not receive any remote message unless you turn
+ * reception on with the "-r" option.
+ *
+ * Not defining SYSLOG_INET will result in not doing any network
+ * activity, i.e. not sending or receiving messages. I changed
+ * this because the old idea is implemented with the "-r" option
+ * and the old thing didn't work anyway.
+ *
+ * Thu Oct 26 13:14:06 MET 1995: Martin Schulze
+ * Added another logfile type F_FORW_UNKN. The problem I ran into
+ * was a name server that runs on my machine and a forwarder of
+ * kern.crit to another host. The hosts address can only be
+ * fetched using the nameserver. But named is started after
+ * syslogd, so syslogd complained.
+ *
+ * This logfile type will retry to get the address of the
+ * hostname ten times and then complain. This should be enough to
+ * get the named up and running during boot sequence.
+ *
+ * Fri Oct 27 14:08:15 1995: Dr. Wettstein
+ * Changed static array of logfiles to a dynamic array. This
+ * can grow during process.
+ *
+ * Fri Nov 10 23:08:18 1995: Martin Schulze
+ * Inserted a new tabular sys_h_errlist that contains plain text
+ * for error codes that are returned from the net subsystem and
+ * stored in h_errno. I have also changed some wrong lookups to
+ * sys_errlist.
+ *
+ * Wed Nov 22 22:32:55 1995: Martin Schulze
+ * Added the fabulous strip-domain feature that allows us to
+ * strip off (several) domain names from the fqdn and only log
+ * the simple hostname. This is useful if you're in a LAN that
+ * has a central log server and also different domains.
+ *
+ * I have also also added the -l switch do define hosts as
+ * local. These will get logged with their simple hostname, too.
+ *
+ * Thu Nov 23 19:02:56 MET DST 1995: Martin Schulze
+ * Added the possibility to omit fsyncing of logfiles after every
+ * write. This will give some performance back if you have
+ * programs that log in a very verbose manner (like innd or
+ * smartlist). Thanks to Stephen R. van den Berg <srb@cuci.nl>
+ * for the idea.
+ *
+ * Thu Jan 18 11:14:36 CST 1996: Dr. Wettstein
+ * Added patch from beta-testers to stop compile error. Also
+ * added removal of pid file as part of termination cleanup.
+ *
+ * Wed Feb 14 12:42:09 CST 1996: Dr. Wettstein
+ * Allowed forwarding of messages received from remote hosts to
+ * be controlled by a command-line switch. Specifying -h allows
+ * forwarding. The default behavior is to disable forwarding of
+ * messages which were received from a remote host.
+ *
+ * Parent process of syslogd does not exit until child process has
+ * finished initialization process. This allows rc.* startup to
+ * pause until syslogd facility is up and operating.
+ *
+ * Re-arranged the select code to move UNIX domain socket accepts
+ * to be processed later. This was a contributed change which
+ * has been proposed to correct the delays sometimes encountered
+ * when syslogd starts up.
+ *
+ * Minor code cleanups.
+ *
+ * Thu May 2 15:15:33 CDT 1996: Dr. Wettstein
+ * Fixed bug in init function which resulted in file descriptors
+ * being orphaned when syslogd process was re-initialized with SIGHUP
+ * signal. Thanks to Edvard Tuinder
+ * (Edvard.Tuinder@praseodymium.cistron.nl) for putting me on the
+ * trail of this bug. I am amazed that we didn't catch this one
+ * before now.
+ *
+ * Tue May 14 00:03:35 MET DST 1996: Martin Schulze
+ * Corrected a mistake that causes the syslogd to stop logging at
+ * some virtual consoles under Linux. This was caused by checking
+ * the wrong error code. Thanks to Michael Nonweiler
+ * <mrn20@hermes.cam.ac.uk> for sending me a patch.
+ *
+ * Mon May 20 13:29:32 MET DST 1996: Miquel van Smoorenburg <miquels@cistron.nl>
+ * Added continuation line supported and fixed a bug in
+ * the init() code.
+ *
+ * Tue May 28 00:58:45 MET DST 1996: Martin Schulze
+ * Corrected behavior of blocking pipes - i.e. the whole system
+ * hung. Michael Nonweiler <mrn20@hermes.cam.ac.uk> has sent us
+ * a patch to correct this. A new logfile type F_PIPE has been
+ * introduced.
+ *
+ * Mon Feb 3 10:12:15 MET DST 1997: Martin Schulze
+ * Corrected behavior of logfiles if the file can't be opened.
+ * There was a bug that causes syslogd to try to log into non
+ * existing files which ate cpu power.
+ *
+ * Sun Feb 9 03:22:12 MET DST 1997: Martin Schulze
+ * Modified syslogd.c to not kill itself which confuses bash 2.0.
+ *
+ * Mon Feb 10 00:09:11 MET DST 1997: Martin Schulze
+ * Improved debug code to decode the numeric facility/priority
+ * pair into textual information.
+ *
+ * Tue Jun 10 12:35:10 MET DST 1997: Martin Schulze
+ * Corrected freeing of logfiles. Thanks to Jos Vos <jos@xos.nl>
+ * for reporting the bug and sending an idea to fix the problem.
+ *
+ * Tue Jun 10 12:51:41 MET DST 1997: Martin Schulze
+ * Removed sleep(10) from parent process. This has caused a slow
+ * startup in former times - and I don't see any reason for this.
+ *
+ * Sun Jun 15 16:23:29 MET DST 1997: Michael Alan Dorman
+ * Some more glibc patches made by <mdorman@debian.org>.
+ *
+ * Thu Jan 1 16:04:52 CET 1998: Martin Schulze <joey@infodrom.north.de
+ * Applied patch from Herbert Thielen <Herbert.Thielen@lpr.e-technik.tu-muenchen.de>.
+ * This included some balance parentheses for emacs and a bug in
+ * the exclamation mark handling.
+ *
+ * Fixed small bug which caused syslogd to write messages to the
+ * wrong logfile under some very rare conditions. Thanks to
+ * Herbert Xu <herbert@gondor.apana.org.au> for fiddling this out.
+ *
+ * Thu Jan 8 22:46:35 CET 1998: Martin Schulze <joey@infodrom.north.de>
+ * Reworked one line of the above patch as it prevented syslogd
+ * from binding the socket with the result that no messages were
+ * forwarded to other hosts.
+ *
+ * Sat Jan 10 01:33:06 CET 1998: Martin Schulze <joey@infodrom.north.de>
+ * Fixed small bugs in F_FORW_UNKN mechanism. Thanks to Torsten
+ * Neumann <torsten@londo.rhein-main.de> for pointing me to it.
+ *
+ * Mon Jan 12 19:50:58 CET 1998: Martin Schulze <joey@infodrom.north.de>
+ * Modified debug output concerning remote reception.
+ *
+ * Mon Feb 23 23:32:35 CET 1998: Topi Miettinen <Topi.Miettinen@ml.tele.fi>
+ * Re-worked handling of Unix and UDP sockets to support closing /
+ * opening of them in order to have it open only if it is needed
+ * either for forwarding to a remote host or by reception from
+ * the network.
+ *
+ * Wed Feb 25 10:54:09 CET 1998: Martin Schulze <joey@infodrom.north.de>
+ * Fixed little comparison mistake that prevented the MARK
+ * feature to work properly.
+ *
+ * Wed Feb 25 13:21:44 CET 1998: Martin Schulze <joey@infodrom.north.de>
+ * Corrected Topi's patch as it prevented forwarding during
+ * startup due to an unknown LogPort.
+ *
+ * Sat Oct 10 20:01:48 CEST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Added support for TESTING define which will turn syslogd into
+ * stdio-mode used for debugging.
+ *
+ * Sun Oct 11 20:16:59 CEST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Reworked the initialization/fork code. Now the parent
+ * process activates a signal handler which the daughter process
+ * will raise if it is initialized. Only after that one the
+ * parent process may exit. Otherwise klogd might try to flush
+ * its log cache while syslogd can't receive the messages yet.
+ *
+ * Mon Oct 12 13:30:35 CEST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Redirected some error output with regard to argument parsing to
+ * stderr.
+ *
+ * Mon Oct 12 14:02:51 CEST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Applied patch provided vom Topi Miettinen with regard to the
+ * people from OpenBSD. This provides the additional '-a'
+ * argument used for specifying additional UNIX domain sockets to
+ * listen to. This is been used with chroot()'ed named's for
+ * example. See for http://www.psionic.com/papers/dns.html
+ *
+ * Mon Oct 12 18:29:44 CEST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Added `ftp' facility which was introduced in glibc version 2.
+ * It's #ifdef'ed so won't harm with older libraries.
+ *
+ * Mon Oct 12 19:59:21 MET DST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Code cleanups with regard to bsd -> posix transition and
+ * stronger security (buffer length checking). Thanks to Topi
+ * Miettinen <tom@medialab.sonera.net>
+ * . index() --> strchr()
+ * . sprintf() --> snprintf()
+ * . bcopy() --> memcpy()
+ * . bzero() --> memset()
+ * . UNAMESZ --> UT_NAMESIZE
+ * . sys_errlist --> strerror()
+ *
+ * Mon Oct 12 20:22:59 CEST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Added support for setutent()/getutent()/endutent() instead of
+ * binary reading the UTMP file. This is the the most portable
+ * way. This allows /var/run/utmp format to change, even to a
+ * real database or utmp daemon. Also if utmp file locking is
+ * implemented in libc, syslog will use it immediately. Thanks
+ * to Topi Miettinen <tom@medialab.sonera.net>.
+ *
+ * Mon Oct 12 20:49:18 MET DST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Avoid logging of SIGCHLD when syslogd is in the process of
+ * exiting and closing its files. Again thanks to Topi.
+ *
+ * Mon Oct 12 22:18:34 CEST 1998: Martin Schulze <joey@infodrom.north.de>
+ * Modified printline() to support 8bit characters - such as
+ * russian letters. Thanks to Vladas Lapinskas <lapinskas@mail.iae.lt>.
+ *
+ * Sat Nov 14 02:29:37 CET 1998: Martin Schulze <joey@infodrom.north.de>
+ * ``-m 0'' now turns of MARK logging entirely.
+ *
+ * Tue Jan 19 01:04:18 MET 1999: Martin Schulze <joey@infodrom.north.de>
+ * Finally fixed an error with `-a' processing, thanks to Topi
+ * Miettinen <tom@medialab.sonera.net>.
+ *
+ * Sun May 23 10:08:53 CEST 1999: Martin Schulze <joey@infodrom.north.de>
+ * Removed superfluous call to utmpname(). The path to the utmp
+ * file is defined in the used libc and should not be hardcoded
+ * into the syslogd binary referring the system it was compiled on.
+ *
+ * Sun Sep 17 20:45:33 CEST 2000: Martin Schulze <joey@infodrom.ffis.de>
+ * Fixed some bugs in printline() code that did not escape
+ * control characters '\177' through '\237' and contained a
+ * single-byte buffer overflow. Thanks to Solar Designer
+ * <solar@false.com>.
+ *
+ * Sun Sep 17 21:26:16 CEST 2000: Martin Schulze <joey@infodrom.ffis.de>
+ * Don't close open sockets upon reload. Thanks to Bill
+ * Nottingham.
+ *
+ * Mon Sep 18 09:10:47 CEST 2000: Martin Schulze <joey@infodrom.ffis.de>
+ * Fixed bug in printchopped() that caused syslogd to emit
+ * kern.emerg messages when splitting long lines. Thanks to
+ * Daniel Jacobowitz <dan@debian.org> for the fix.
+ *
+ * Mon Sep 18 15:33:26 CEST 2000: Martin Schulze <joey@infodrom.ffis.de>
+ * Removed unixm/unix domain sockets and switch to Datagram Unix
+ * Sockets. This should remove one possibility to play DoS with
+ * syslogd. Thanks to Olaf Kirch <okir@caldera.de> for the patch.
+ *
+ * Sun Mar 11 20:23:44 CET 2001: Martin Schulze <joey@infodrom.ffis.de>
+ * Don't return a closed fd if `-a' is called with a wrong path.
+ * Thanks to Bill Nottingham <notting@redhat.com> for providing
+ * a patch.