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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 16:28:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 16:28:20 +0000
commitdcc721a95bef6f0d8e6d8775b8efe33e5aecd562 (patch)
tree66a2774cd0ee294d019efd71d2544c70f42b2842 /plugins/omrelp
parentInitial commit. (diff)
downloadrsyslog-dcc721a95bef6f0d8e6d8775b8efe33e5aecd562.tar.xz
rsyslog-dcc721a95bef6f0d8e6d8775b8efe33e5aecd562.zip
Adding upstream version 8.2402.0.upstream/8.2402.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--plugins/omrelp/Makefile.am6
-rw-r--r--plugins/omrelp/Makefile.in797
-rw-r--r--plugins/omrelp/omrelp.c826
3 files changed, 1629 insertions, 0 deletions
diff --git a/plugins/omrelp/Makefile.am b/plugins/omrelp/Makefile.am
new file mode 100644
index 0000000..906aab4
--- /dev/null
+++ b/plugins/omrelp/Makefile.am
@@ -0,0 +1,6 @@
+pkglib_LTLIBRARIES = omrelp.la
+
+omrelp_la_SOURCES = omrelp.c
+omrelp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RELP_CFLAGS) $(RSRT_CFLAGS)
+omrelp_la_LDFLAGS = -module -avoid-version
+omrelp_la_LIBADD = $(RELP_LIBS)
diff --git a/plugins/omrelp/Makefile.in b/plugins/omrelp/Makefile.in
new file mode 100644
index 0000000..c74c33a
--- /dev/null
+++ b/plugins/omrelp/Makefile.in
@@ -0,0 +1,797 @@
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+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/omrelp/omrelp.c b/plugins/omrelp/omrelp.c
new file mode 100644
index 0000000..5fc1dcc
--- /dev/null
+++ b/plugins/omrelp/omrelp.c
@@ -0,0 +1,826 @@
+/* omrelp.c
+ *
+ * This is the implementation of the RELP output module.
+ *
+ * Note that when multiple action workers are activated, we currently
+ * also create multiple actions. This may be the source of some mild
+ * message loss (!) if the worker instance is shut down while the
+ * connection to the remote system is in retry state.
+ * TODO: think if we should implement a mode where we do NOT
+ * support multiple action worker instances. This would be
+ * slower, but not have this loss opportunity. But it should
+ * definitely be optional and by default off due to the
+ * performance implications (and given the fact that message
+ * loss is pretty unlikely in usual cases).
+ *
+ *
+ * File begun on 2008-03-13 by RGerhards
+ *
+ * Copyright 2008-2019 Adiscon GmbH.
+ *
+ * This file is part of rsyslog.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * -or-
+ * see COPYING.ASL20 in the source distribution
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "config.h"
+#include "rsyslog.h"
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+#include <ctype.h>
+#include <librelp.h>
+#include "conf.h"
+#include "syslogd-types.h"
+#include "srUtils.h"
+#include "cfsysline.h"
+#include "module-template.h"
+#include "glbl.h"
+#include "errmsg.h"
+#include "debug.h"
+#include "parserif.h"
+#include "unicode-helper.h"
+
+#ifndef RELP_DFLT_PT
+# define RELP_DFLT_PT "514"
+#endif
+
+MODULE_TYPE_OUTPUT
+MODULE_TYPE_NOKEEP
+MODULE_CNFNAME("omrelp")
+
+/* internal structures
+ */
+DEF_OMOD_STATIC_DATA
+DEFobjCurrIf(glbl)
+
+#define DFLT_ENABLE_TLS 0
+#define DFLT_ENABLE_TLSZIP 0
+
+static relpEngine_t *pRelpEngine; /* our relp engine */
+
+typedef struct _instanceData {
+ uchar *target;
+ uchar *port;
+ int sizeWindow; /**< the RELP window size - 0=use default */
+ unsigned timeout;
+ int connTimeout;
+ unsigned rebindInterval;
+ sbool bEnableTLS;
+ sbool bEnableTLSZip;
+ sbool bHadAuthFail; /**< set on auth failure, will cause retry to disable action */
+ uchar *pristring; /* GnuTLS priority string (NULL if not to be provided) */
+ uchar *authmode;
+ uchar *caCertFile;
+ uchar *myCertFile;
+ uchar *myPrivKeyFile;
+#if defined(HAVE_RELPENGINESETTLSCFGCMD)
+ uchar *tlscfgcmd;
+#endif
+ uchar *tplName;
+ uchar *localClientIP;
+ struct {
+ int nmemb;
+ uchar **name;
+ } permittedPeers;
+} instanceData;
+
+typedef struct wrkrInstanceData {
+ instanceData *pData;
+ int bInitialConnect; /* is this the initial connection request of our module? (0-no, 1-yes) */
+ int bIsConnected; /* currently connected to server? 0 - no, 1 - yes */
+ int bIsSuspended; /* currently suspended (than no more error messages) */
+ relpClt_t *pRelpClt; /* relp client for this instance */
+ unsigned nSent; /* number msgs sent - for rebind support */
+} wrkrInstanceData_t;
+
+typedef struct configSettings_s {
+ EMPTY_STRUCT
+} configSettings_t;
+static configSettings_t __attribute__((unused)) cs;
+
+static rsRetVal doCreateRelpClient(instanceData *pData, relpClt_t **pRelpClt);
+
+struct modConfData_s {
+ rsconf_t *pConf; /* our overall config object */
+ const char *tlslib;
+};
+
+static modConfData_t *loadModConf = NULL;/* modConf ptr to use for the current load process */
+static modConfData_t *runModConf = NULL;/* modConf ptr to use for the current exec process */
+
+/* tables for interfacing with the v6 config system */
+/* module-global parameters */
+static struct cnfparamdescr modpdescr[] = {
+ { "tls.tlslib", eCmdHdlrString, 0 }
+};
+static struct cnfparamblk modpblk =
+ { CNFPARAMBLK_VERSION,
+ sizeof(modpdescr)/sizeof(struct cnfparamdescr),
+ modpdescr
+ };
+/* action (instance) parameters */
+static struct cnfparamdescr actpdescr[] = {
+ { "target", eCmdHdlrGetWord, 1 },
+ { "tls", eCmdHdlrBinary, 0 },
+ { "tls.compression", eCmdHdlrBinary, 0 },
+ { "tls.prioritystring", eCmdHdlrString, 0 },
+ { "tls.cacert", eCmdHdlrString, 0 },
+ { "tls.mycert", eCmdHdlrString, 0 },
+ { "tls.myprivkey", eCmdHdlrString, 0 },
+ { "tls.authmode", eCmdHdlrString, 0 },
+ { "tls.tlscfgcmd", eCmdHdlrString, 0 },
+ { "tls.permittedpeer", eCmdHdlrArray, 0 },
+ { "port", eCmdHdlrGetWord, 0 },
+ { "rebindinterval", eCmdHdlrInt, 0 },
+ { "windowsize", eCmdHdlrInt, 0 },
+ { "timeout", eCmdHdlrInt, 0 },
+ { "conn.timeout", eCmdHdlrInt, 0 },
+ { "localclientip", eCmdHdlrGetWord, 0 },
+ { "template", eCmdHdlrGetWord, 0 }
+};
+static struct cnfparamblk actpblk =
+ { CNFPARAMBLK_VERSION,
+ sizeof(actpdescr)/sizeof(struct cnfparamdescr),
+ actpdescr
+ };
+
+BEGINinitConfVars /* (re)set config variables to default values */
+CODESTARTinitConfVars
+ENDinitConfVars
+
+/* We may change the implementation to try to lookup the port
+ * if it is unspecified. So far, we use 514 as default (what probably
+ * is not a really bright idea, but kept for backward compatibility).
+ */
+
+PRAGMA_DIAGNOSTIC_PUSH
+PRAGMA_IGNORE_Wformat_nonliteral
+static void __attribute__((format(printf, 1, 2)))
+omrelp_dbgprintf(const char *fmt, ...)
+{
+ va_list ap;
+ char pszWriteBuf[32*1024+1]; //this function has to be able to
+ /*generate a buffer longer than that of r_dbgprintf, so
+ r_dbgprintf can properly truncate*/
+ if(!(Debug && debugging_on)) {
+ return;
+ }
+
+ va_start(ap, fmt);
+ vsnprintf(pszWriteBuf, sizeof(pszWriteBuf), fmt, ap);
+ va_end(ap);
+ r_dbgprintf("omrelp.c", "%s", pszWriteBuf);
+}
+PRAGMA_DIAGNOSTIC_POP
+
+
+static uchar *getRelpPt(instanceData *pData)
+{
+ assert(pData != NULL);
+ if(pData->port == NULL)
+ return((uchar*)RELP_DFLT_PT);
+ else
+ return(pData->port);
+}
+
+static void
+onErr(void *pUsr, char *objinfo, char* errmesg, __attribute__((unused)) relpRetVal errcode)
+{
+ wrkrInstanceData_t *pWrkrData = (wrkrInstanceData_t*) pUsr;
+ LogError(0, RS_RET_RELP_AUTH_FAIL, "omrelp[%s:%s]: error '%s', object "
+ " '%s' - action may not work as intended",
+ pWrkrData->pData->target, pWrkrData->pData->port, errmesg, objinfo);
+}
+
+static void
+onGenericErr(char *objinfo, char* errmesg, __attribute__((unused)) relpRetVal errcode)
+{
+ LogError(0, RS_RET_RELP_ERR, "omrelp: librelp error '%s', object "
+ "'%s' - action may not work as intended",
+ errmesg, objinfo);
+}
+
+static void
+onAuthErr(void *pUsr, char *authinfo, char* errmesg, __attribute__((unused)) relpRetVal errcode)
+{
+ instanceData *pData = ((wrkrInstanceData_t*) pUsr)->pData;
+ LogError(0, RS_RET_RELP_AUTH_FAIL, "omrelp[%s:%s]: authentication error '%s', peer "
+ "is '%s' - DISABLING action", pData->target, pData->port, errmesg, authinfo);
+ pData->bHadAuthFail = 1;
+}
+
+static rsRetVal
+doCreateRelpClient(instanceData *pData, relpClt_t **pRelpClt)
+{
+ int i;
+ DEFiRet;
+
+ if(relpEngineCltConstruct(pRelpEngine, pRelpClt) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ if(relpCltSetTimeout(*pRelpClt, pData->timeout) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ if(relpCltSetConnTimeout(*pRelpClt, pData->connTimeout) != RELP_RET_OK) {
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ }
+ if(relpCltSetWindowSize(*pRelpClt, pData->sizeWindow) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ if(pData->bEnableTLS) {
+ if(relpCltEnableTLS(*pRelpClt) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ if(pData->bEnableTLSZip) {
+ if(relpCltEnableTLSZip(*pRelpClt) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ }
+ if(relpCltSetGnuTLSPriString(*pRelpClt, (char*) pData->pristring) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+
+
+ if(relpCltSetAuthMode(*pRelpClt, (char*) pData->authmode) != RELP_RET_OK) {
+ LogError(0, RS_RET_RELP_ERR,
+ "omrelp: invalid auth mode '%s'\n", pData->authmode);
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ }
+
+ if(relpCltSetCACert(*pRelpClt, (char*) pData->caCertFile) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ if(relpCltSetOwnCert(*pRelpClt, (char*) pData->myCertFile) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ if(relpCltSetPrivKey(*pRelpClt, (char*) pData->myPrivKeyFile) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+#if defined(HAVE_RELPENGINESETTLSCFGCMD)
+ if (pData->tlscfgcmd != NULL) {
+ if(relpCltSetTlsConfigCmd(*pRelpClt, (char*) pData->tlscfgcmd) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ }
+#endif
+ for(i = 0 ; i < pData->permittedPeers.nmemb ; ++i) {
+ relpCltAddPermittedPeer(*pRelpClt, (char*)pData->permittedPeers.name[i]);
+ }
+ }
+ if(pData->localClientIP != NULL) {
+ if(relpCltSetClientIP(*pRelpClt, pData->localClientIP) != RELP_RET_OK)
+ ABORT_FINALIZE(RS_RET_RELP_ERR);
+ }
+finalize_it:
+
+ RETiRet;
+}
+
+BEGINendCnfLoad
+CODESTARTendCnfLoad
+ loadModConf = NULL;
+ runModConf = pModConf;
+ENDendCnfLoad
+
+BEGINcheckCnf
+CODESTARTcheckCnf
+ENDcheckCnf
+
+BEGINactivateCnf
+CODESTARTactivateCnf
+ENDactivateCnf
+
+BEGINfreeCnf
+CODESTARTfreeCnf
+ free((void*)pModConf->tlslib);
+ENDfreeCnf
+
+BEGINcreateInstance
+CODESTARTcreateInstance
+ pData->sizeWindow = 0;
+ pData->timeout = 90;
+ pData->connTimeout = 10;
+ pData->rebindInterval = 0;
+ pData->bEnableTLS = DFLT_ENABLE_TLS;
+ pData->bEnableTLSZip = DFLT_ENABLE_TLSZIP;
+ pData->bHadAuthFail = 0;
+ pData->pristring = NULL;
+ pData->authmode = NULL;
+ pData->localClientIP = NULL;
+ pData->caCertFile = NULL;
+ pData->myCertFile = NULL;
+ pData->myPrivKeyFile = NULL;
+#if defined(HAVE_RELPENGINESETTLSCFGCMD)
+ pData->tlscfgcmd = NULL;
+#endif
+ pData->permittedPeers.nmemb = 0;
+ENDcreateInstance
+
+BEGINcreateWrkrInstance
+CODESTARTcreateWrkrInstance
+ pWrkrData->pRelpClt = NULL;
+ iRet = doCreateRelpClient(pWrkrData->pData, &pWrkrData->pRelpClt);
+ if(relpCltSetUsrPtr(pWrkrData->pRelpClt, pWrkrData) != RELP_RET_OK)
+ LogError(0, RS_RET_NO_ERRCODE, "omrelp: error when creating relp client");
+ pWrkrData->bInitialConnect = 1;
+ pWrkrData->nSent = 0;
+ENDcreateWrkrInstance
+
+BEGINfreeInstance
+ int i;
+CODESTARTfreeInstance
+ free(pData->target);
+ free(pData->port);
+ free(pData->tplName);
+ free(pData->pristring);
+ free(pData->authmode);
+ free(pData->localClientIP);
+ free(pData->caCertFile);
+ free(pData->myCertFile);
+ free(pData->myPrivKeyFile);
+#if defined(HAVE_RELPENGINESETTLSCFGCMD)
+ free(pData->tlscfgcmd);
+#endif
+ if(pData->permittedPeers.name != NULL) {
+ for(i = 0 ; i < pData->permittedPeers.nmemb ; ++i) {
+ free(pData->permittedPeers.name[i]);
+ }
+ }
+ENDfreeInstance
+
+BEGINfreeWrkrInstance
+CODESTARTfreeWrkrInstance
+ if(pWrkrData->pRelpClt != NULL)
+ relpEngineCltDestruct(pRelpEngine, &pWrkrData->pRelpClt);
+ENDfreeWrkrInstance
+
+static void
+setInstParamDefaults(instanceData *pData)
+{
+ pData->target = NULL;
+ pData->port = NULL;
+ pData->tplName = NULL;
+ pData->timeout = 90;
+ pData->connTimeout = 10;
+ pData->sizeWindow = 0;
+ pData->rebindInterval = 0;
+ pData->bEnableTLS = DFLT_ENABLE_TLS;
+ pData->bEnableTLSZip = DFLT_ENABLE_TLSZIP;
+ pData->pristring = NULL;
+ pData->authmode = NULL;
+ if(glbl.GetSourceIPofLocalClient() == NULL)
+ pData->localClientIP = NULL;
+ else
+ pData->localClientIP = (uchar*)strdup((char*)glbl.GetSourceIPofLocalClient());
+ pData->caCertFile = NULL;
+ pData->myCertFile = NULL;
+ pData->myPrivKeyFile = NULL;
+#if defined(HAVE_RELPENGINESETTLSCFGCMD)
+ pData->tlscfgcmd = NULL;
+#endif
+ pData->permittedPeers.name = NULL;
+ pData->permittedPeers.nmemb = 0;
+}
+
+BEGINbeginCnfLoad
+CODESTARTbeginCnfLoad
+ loadModConf = pModConf;
+ pModConf->pConf = pConf;
+ pModConf->tlslib = NULL;
+ /* create our relp engine */
+ CHKiRet(relpEngineConstruct(&pRelpEngine));
+ CHKiRet(relpEngineSetDbgprint(pRelpEngine, (void (*)(char *, ...))omrelp_dbgprintf));
+ CHKiRet(relpEngineSetOnAuthErr(pRelpEngine, onAuthErr));
+ CHKiRet(relpEngineSetOnGenericErr(pRelpEngine, onGenericErr));
+ CHKiRet(relpEngineSetOnErr(pRelpEngine, onErr));
+ CHKiRet(relpEngineSetEnableCmd(pRelpEngine, (uchar*) "syslog", eRelpCmdState_Required));
+finalize_it:
+ENDbeginCnfLoad
+
+BEGINsetModCnf
+ struct cnfparamvals *pvals = NULL;
+ int i;
+CODESTARTsetModCnf
+ pvals = nvlstGetParams(lst, &modpblk, NULL);
+ if(pvals == NULL) {
+ parser_errmsg("imrelp: error processing module config parameters [module(...)]");
+ ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS);
+ }
+
+ if(Debug) {
+ dbgprintf("module (global) param blk for omrelp:\n");
+ cnfparamsPrint(&modpblk, pvals);
+ }
+
+ for(i = 0 ; i < modpblk.nParams ; ++i) {
+ if(!pvals[i].bUsed) {
+ continue;
+ }
+ if(!strcmp(modpblk.descr[i].name, "tls.tlslib")) {
+ #if defined(HAVE_RELPENGINESETTLSLIBBYNAME)
+ loadModConf->tlslib = es_str2cstr(pvals[i].val.d.estr, NULL);
+ if(relpEngineSetTLSLibByName(pRelpEngine, loadModConf->tlslib) != RELP_RET_OK) {
+ LogMsg(0, RS_RET_CONF_PARAM_INVLD, LOG_WARNING,
+ "omrelp: tlslib '%s' not accepted as valid by librelp - using default",
+ loadModConf->tlslib);
+ }
+ #else
+ LogError(0, RS_RET_NOT_IMPLEMENTED,
+ "omrelp warning: parameter tls.tlslib ignored - librelp does not support "
+ "this API call. Using whatever librelp was compiled with.");
+ #endif
+ } else {
+ dbgprintf("imfile: program error, non-handled "
+ "param '%s' in beginCnfLoad\n", modpblk.descr[i].name);
+ }
+ }
+finalize_it:
+ if(pvals != NULL)
+ cnfparamvalsDestruct(pvals, &modpblk);
+ENDsetModCnf
+
+BEGINnewActInst
+ struct cnfparamvals *pvals;
+ int i,j;
+ FILE *fp;
+ relpClt_t *pRelpClt = NULL;
+CODESTARTnewActInst
+ if((pvals = nvlstGetParams(lst, &actpblk, NULL)) == NULL) {
+ ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS);
+ }
+
+ CHKiRet(createInstance(&pData));
+ setInstParamDefaults(pData);
+
+ for(i = 0 ; i < actpblk.nParams ; ++i) {
+ if(!pvals[i].bUsed)
+ continue;
+ if(!strcmp(actpblk.descr[i].name, "target")) {
+ pData->target = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ } else if(!strcmp(actpblk.descr[i].name, "port")) {
+ pData->port = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ } else if(!strcmp(actpblk.descr[i].name, "template")) {
+ pData->tplName = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ } else if(!strcmp(actpblk.descr[i].name, "localclientip")) {
+ pData->localClientIP = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ } else if(!strcmp(actpblk.descr[i].name, "timeout")) {
+ pData->timeout = (unsigned) pvals[i].val.d.n;
+ } else if(!strcmp(actpblk.descr[i].name, "conn.timeout")) {
+ pData->connTimeout = (int) pvals[i].val.d.n;
+ } else if(!strcmp(actpblk.descr[i].name, "rebindinterval")) {
+ pData->rebindInterval = (unsigned) pvals[i].val.d.n;
+ } else if(!strcmp(actpblk.descr[i].name, "windowsize")) {
+ pData->sizeWindow = (int) pvals[i].val.d.n;
+ } else if(!strcmp(actpblk.descr[i].name, "tls")) {
+ pData->bEnableTLS = (unsigned) pvals[i].val.d.n;
+ } else if(!strcmp(actpblk.descr[i].name, "tls.compression")) {
+ pData->bEnableTLSZip = (unsigned) pvals[i].val.d.n;
+ } else if(!strcmp(actpblk.descr[i].name, "tls.prioritystring")) {
+ pData->pristring = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ } else if(!strcmp(actpblk.descr[i].name, "tls.cacert")) {
+ pData->caCertFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ fp = fopen((const char*)pData->caCertFile, "r");
+ if(fp == NULL) {
+ char errStr[1024];
+ rs_strerror_r(errno, errStr, sizeof(errStr));
+ LogError(0, RS_RET_NO_FILE_ACCESS,
+ "error: certificate file %s couldn't be accessed: %s\n",
+ pData->caCertFile, errStr);
+ } else {
+ fclose(fp);
+ }
+ } else if(!strcmp(actpblk.descr[i].name, "tls.mycert")) {
+ pData->myCertFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ fp = fopen((const char*)pData->myCertFile, "r");
+ if(fp == NULL) {
+ char errStr[1024];
+ rs_strerror_r(errno, errStr, sizeof(errStr));
+ LogError(0, RS_RET_NO_FILE_ACCESS,
+ "error: certificate file %s couldn't be accessed: %s\n",
+ pData->myCertFile, errStr);
+ } else {
+ fclose(fp);
+ }
+ } else if(!strcmp(actpblk.descr[i].name, "tls.myprivkey")) {
+ pData->myPrivKeyFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ fp = fopen((const char*)pData->myPrivKeyFile, "r");
+ if(fp == NULL) {
+ char errStr[1024];
+ rs_strerror_r(errno, errStr, sizeof(errStr));
+ LogError(0, RS_RET_NO_FILE_ACCESS,
+ "error: certificate file %s couldn't be accessed: %s\n",
+ pData->myPrivKeyFile, errStr);
+ } else {
+ fclose(fp);
+ }
+ } else if(!strcmp(actpblk.descr[i].name, "tls.tlscfgcmd")) {
+#if defined(HAVE_RELPENGINESETTLSCFGCMD)
+ pData->tlscfgcmd = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+#else
+ LogError(0, RS_RET_NOT_IMPLEMENTED, "omrelp: librelp does not support input parameter "
+ "'tls.tlscfgcmd'; it probably is too old (1.5.0 or higher should be fine); "
+ "ignoring setting now.");
+#endif
+ } else if(!strcmp(actpblk.descr[i].name, "tls.authmode")) {
+ pData->authmode = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
+ } else if(!strcmp(actpblk.descr[i].name, "tls.permittedpeer")) {
+ pData->permittedPeers.nmemb = pvals[i].val.d.ar->nmemb;
+ CHKmalloc(pData->permittedPeers.name =
+ malloc(sizeof(uchar*) * pData->permittedPeers.nmemb));
+ for(j = 0 ; j < pData->permittedPeers.nmemb ; ++j) {
+ pData->permittedPeers.name[j] = (uchar*)es_str2cstr(pvals[i].val.d.ar->arr[j], NULL);
+ }
+ } else {
+ dbgprintf("omrelp: program error, non-handled "
+ "param '%s'\n", actpblk.descr[i].name);
+ }
+ }
+
+ CODE_STD_STRING_REQUESTnewActInst(1)
+
+ CHKiRet(OMSRsetEntry(*ppOMSR, 0, (uchar*)strdup((pData->tplName == NULL) ?
+ "RSYSLOG_ForwardFormat" : (char*)pData->tplName),
+ OMSR_NO_RQD_TPL_OPTS));
+
+ iRet = doCreateRelpClient(pData, &pRelpClt);
+ if(pRelpClt != NULL)
+ relpEngineCltDestruct(pRelpEngine, &pRelpClt);
+
+CODE_STD_FINALIZERnewActInst
+ if(pvals != NULL)
+ cnfparamvalsDestruct(pvals, &actpblk);
+ENDnewActInst
+
+BEGINisCompatibleWithFeature
+CODESTARTisCompatibleWithFeature
+ if(eFeat == sFEATURERepeatedMsgReduction)
+ iRet = RS_RET_OK;
+ENDisCompatibleWithFeature
+
+BEGINSetShutdownImmdtPtr
+CODESTARTSetShutdownImmdtPtr
+ relpEngineSetShutdownImmdtPtr(pRelpEngine, pPtr);
+ DBGPRINTF("omrelp: shutdownImmediate ptr now is %p\n", pPtr);
+ENDSetShutdownImmdtPtr
+
+
+BEGINdbgPrintInstInfo
+CODESTARTdbgPrintInstInfo
+ dbgprintf("RELP/%s", pData->target);
+ENDdbgPrintInstInfo
+
+
+/* try to connect to server
+ * rgerhards, 2008-03-21
+ */
+static rsRetVal ATTR_NONNULL()
+doConnect(wrkrInstanceData_t *const pWrkrData)
+{
+ DEFiRet;
+
+ if(pWrkrData->bInitialConnect) {
+ iRet = relpCltConnect(pWrkrData->pRelpClt, glbl.GetDefPFFamily(runModConf->pConf),
+ getRelpPt(pWrkrData->pData), pWrkrData->pData->target);
+ if(iRet == RELP_RET_OK)
+ pWrkrData->bInitialConnect = 0;
+ } else {
+ iRet = relpCltReconnect(pWrkrData->pRelpClt);
+ }
+
+ if(iRet == RELP_RET_OK) {
+ pWrkrData->bIsConnected = 1;
+ } else if(iRet == RELP_RET_ERR_NO_TLS) {
+ LogError(0, iRet, "omrelp: Could not connect, librelp does NOT "
+ "support TLS (most probably GnuTLS lib "
+ "is too old)!");
+ FINALIZE;
+ } else if(iRet == RELP_RET_ERR_NO_TLS_AUTH) {
+ LogError(0, iRet, "omrelp: could not activate relp TLS with "
+ "authentication, librelp does not support it "
+ "(most probably GnuTLS lib is too old)! "
+ "Note: anonymous TLS is probably supported.");
+ FINALIZE;
+ } else {
+ if(pWrkrData->bIsSuspended == 0) {
+ LogError(0, RS_RET_RELP_ERR, "omrelp: could not connect to "
+ "remote server, librelp error %d", iRet);
+ }
+ pWrkrData->bIsConnected = 0;
+ pWrkrData->bIsSuspended = 1;
+ iRet = RS_RET_SUSPENDED;
+ }
+
+finalize_it:
+ RETiRet;
+}
+
+
+BEGINtryResume
+CODESTARTtryResume
+ if(pWrkrData->pData->bHadAuthFail) {
+ ABORT_FINALIZE(RS_RET_DISABLE_ACTION);
+ }
+ iRet = doConnect(pWrkrData);
+finalize_it:
+ENDtryResume
+
+static rsRetVal
+doRebind(wrkrInstanceData_t *pWrkrData)
+{
+ DEFiRet;
+ DBGPRINTF("omrelp: destructing relp client due to rebindInterval\n");
+ CHKiRet(relpEngineCltDestruct(pRelpEngine, &pWrkrData->pRelpClt));
+ pWrkrData->bIsConnected = 0;
+ CHKiRet(doCreateRelpClient(pWrkrData->pData, &pWrkrData->pRelpClt));
+ if(relpCltSetUsrPtr(pWrkrData->pRelpClt, pWrkrData) != RELP_RET_OK)
+ LogError(0, RS_RET_NO_ERRCODE, "omrelp: error when creating relp client");
+ pWrkrData->bInitialConnect = 1;
+ pWrkrData->nSent = 0;
+finalize_it:
+ RETiRet;
+}
+
+BEGINbeginTransaction
+CODESTARTbeginTransaction
+ DBGPRINTF("omrelp: beginTransaction\n");
+ if(!pWrkrData->bIsConnected) {
+ CHKiRet(doConnect(pWrkrData));
+ }
+ relpCltHintBurstBegin(pWrkrData->pRelpClt);
+finalize_it:
+ENDbeginTransaction
+
+BEGINdoAction
+ uchar *pMsg; /* temporary buffering */
+ size_t lenMsg;
+ relpRetVal ret;
+ instanceData *pData;
+CODESTARTdoAction
+ pData = pWrkrData->pData;
+ dbgprintf(" %s:%s/RELP\n", pData->target, getRelpPt(pData));
+
+ if(!pWrkrData->bIsConnected) {
+ CHKiRet(doConnect(pWrkrData));
+ }
+
+ pMsg = ppString[0];
+ lenMsg = strlen((char*) pMsg); /* TODO: don't we get this? */
+
+ /* we need to truncate oversize msgs - no way around that... */
+ if((int) lenMsg > glbl.GetMaxLine(runModConf->pConf))
+ lenMsg = glbl.GetMaxLine(runModConf->pConf);
+
+ /* forward */
+ ret = relpCltSendSyslog(pWrkrData->pRelpClt, (uchar*) pMsg, lenMsg);
+ if(ret != RELP_RET_OK) {
+ LogError(0, RS_RET_RELP_ERR, "librelp error %d%s forwarding "
+ "to server %s:%s - suspending\n", ret,
+ (ret == RELP_RET_SESSION_BROKEN) ?
+ "[connection broken]" : "",
+ pData->target, getRelpPt(pData));
+ ABORT_FINALIZE(RS_RET_SUSPENDED);
+ }
+
+ if(pData->rebindInterval != 0 &&
+ (++pWrkrData->nSent >= pData->rebindInterval)) {
+ doRebind(pWrkrData);
+ }
+finalize_it:
+ if(pData->bHadAuthFail)
+ iRet = RS_RET_DISABLE_ACTION;
+ if(iRet == RS_RET_OK) {
+ /* we mimic non-commit, as otherwise our endTransaction handler
+ * will not get called. While this is not 100% correct, the worst
+ * that can happen is some message duplication, something that
+ * rsyslog generally accepts and prefers over message loss.
+ */
+ iRet = RS_RET_PREVIOUS_COMMITTED;
+ } else if(iRet == RS_RET_SUSPENDED) {
+ pWrkrData->bIsSuspended = 1;
+ }
+ENDdoAction
+
+
+BEGINendTransaction
+CODESTARTendTransaction
+ DBGPRINTF("omrelp: endTransaction, connected %d\n", pWrkrData->bIsConnected);
+ if(pWrkrData->bIsConnected) {
+ relpCltHintBurstEnd(pWrkrData->pRelpClt);
+ }
+ENDendTransaction
+
+BEGINparseSelectorAct
+ uchar *q;
+ int i;
+ int bErr;
+CODESTARTparseSelectorAct
+CODE_STD_STRING_REQUESTparseSelectorAct(1)
+ if(!strncmp((char*) p, ":omrelp:", sizeof(":omrelp:") - 1)) {
+ p += sizeof(":omrelp:") - 1; /* eat indicator sequence (-1 because of '\0'!) */
+ } else {
+ ABORT_FINALIZE(RS_RET_CONFLINE_UNPROCESSED);
+ }
+
+ /* ok, if we reach this point, we have something for us */
+ if((iRet = createInstance(&pData)) != RS_RET_OK)
+ FINALIZE;
+
+ /* extract the host first (we do a trick - we replace the ';' or ':' with a '\0')
+ * now skip to port and then template name. rgerhards 2005-07-06
+ */
+ if(*p == '[') { /* everything is hostname upto ']' */
+ ++p; /* skip '[' */
+ for(q = p ; *p && *p != ']' ; ++p)
+ /* JUST SKIP */;
+ if(*p == ']') {
+ *p = '\0'; /* trick to obtain hostname (later)! */
+ ++p; /* eat it */
+ }
+ } else { /* traditional view of hostname */
+ for(q = p ; *p && *p != ';' && *p != ':' && *p != '#' ; ++p)
+ /* JUST SKIP */;
+ }
+
+ pData->port = NULL;
+ if(*p == ':') { /* process port */
+ uchar * tmp;
+
+ *p = '\0'; /* trick to obtain hostname (later)! */
+ tmp = ++p;
+ for(i=0 ; *p && isdigit((int) *p) ; ++p, ++i)
+ /* SKIP AND COUNT */;
+ pData->port = malloc(i + 1);
+ if(pData->port == NULL) {
+ LogError(0, NO_ERRCODE, "Could not get memory to store relp port, "
+ "using default port, results may not be what you intend\n");
+ /* we leave f_forw.port set to NULL, this is then handled by getRelpPt() */
+ } else {
+ memcpy(pData->port, tmp, i);
+ *(pData->port + i) = '\0';
+ }
+ }
+
+ /* now skip to template */
+ bErr = 0;
+ while(*p && *p != ';') {
+ if(*p && *p != ';' && !isspace((int) *p)) {
+ if(bErr == 0) { /* only 1 error msg! */
+ bErr = 1;
+ errno = 0;
+ LogError(0, NO_ERRCODE, "invalid selector line (port), probably not doing "
+ "what was intended");
+ }
+ }
+ ++p;
+ }
+
+ if(*p == ';') {
+ *p = '\0'; /* trick to obtain hostname (later)! */
+ CHKmalloc(pData->target = ustrdup(q));
+ *p = ';';
+ } else {
+ CHKmalloc(pData->target = ustrdup(q));
+ }
+
+ /* process template */
+ CHKiRet(cflineParseTemplateName(&p, *ppOMSR, 0, OMSR_NO_RQD_TPL_OPTS, (uchar*) "RSYSLOG_ForwardFormat"));
+
+CODE_STD_FINALIZERparseSelectorAct
+ENDparseSelectorAct
+
+
+BEGINmodExit
+CODESTARTmodExit
+ relpEngineDestruct(&pRelpEngine);
+
+ /* release what we no longer need */
+ objRelease(glbl, CORE_COMPONENT);
+ENDmodExit
+
+
+BEGINqueryEtryPt
+CODESTARTqueryEtryPt
+CODEqueryEtryPt_STD_OMOD_QUERIES
+CODEqueryEtryPt_STD_OMOD8_QUERIES
+CODEqueryEtryPt_STD_CONF2_QUERIES
+CODEqueryEtryPt_STD_CONF2_CNFNAME_QUERIES
+CODEqueryEtryPt_STD_CONF2_OMOD_QUERIES
+CODEqueryEtryPt_STD_CONF2_setModCnf_QUERIES
+CODEqueryEtryPt_TXIF_OMOD_QUERIES
+CODEqueryEtryPt_SetShutdownImmdtPtr
+ENDqueryEtryPt
+
+
+BEGINmodInit()
+CODESTARTmodInit
+INITLegCnfVars
+ *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
+CODEmodInit_QueryRegCFSLineHdlr
+ /* tell which objects we need */
+ CHKiRet(objUse(glbl, CORE_COMPONENT));
+ENDmodInit