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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 19:49:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 19:49:47 +0000
commit9c5dd847393c7c0f37ef557d7a0d402deedd8d2a (patch)
treedcb9b4740181f58a5d235e8ca52f9855494f486e /debian/patches/keepalive-extensions.patch
parentAdding upstream version 1:9.6p1. (diff)
downloadopenssh-9c5dd847393c7c0f37ef557d7a0d402deedd8d2a.tar.xz
openssh-9c5dd847393c7c0f37ef557d7a0d402deedd8d2a.zip
Adding debian version 1:9.6p1-4.debian/1%9.6p1-4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/patches/keepalive-extensions.patch')
-rw-r--r--debian/patches/keepalive-extensions.patch135
1 files changed, 135 insertions, 0 deletions
diff --git a/debian/patches/keepalive-extensions.patch b/debian/patches/keepalive-extensions.patch
new file mode 100644
index 0000000..b271f71
--- /dev/null
+++ b/debian/patches/keepalive-extensions.patch
@@ -0,0 +1,135 @@
+From 07b232eaa2b9236e66282d4f126f1023d41efc0e Mon Sep 17 00:00:00 2001
+From: Richard Kettlewell <rjk@greenend.org.uk>
+Date: Sun, 9 Feb 2014 16:09:52 +0000
+Subject: Various keepalive extensions
+
+Add compatibility aliases for ProtocolKeepAlives and SetupTimeOut, supported
+in previous versions of Debian's OpenSSH package but since superseded by
+ServerAliveInterval. (We're probably stuck with this bit for
+compatibility.)
+
+In batch mode, default ServerAliveInterval to five minutes.
+
+Adjust documentation to match and to give some more advice on use of
+keepalives.
+
+Author: Ian Jackson <ian@chiark.greenend.org.uk>
+Author: Matthew Vernon <matthew@debian.org>
+Author: Colin Watson <cjwatson@debian.org>
+Last-Update: 2023-12-18
+
+Patch-Name: keepalive-extensions.patch
+---
+ readconf.c | 14 ++++++++++++--
+ ssh_config.5 | 21 +++++++++++++++++++--
+ sshd_config.5 | 3 +++
+ 3 files changed, 34 insertions(+), 4 deletions(-)
+
+diff --git a/readconf.c b/readconf.c
+index 93e431d71..bd2e78ab7 100644
+--- a/readconf.c
++++ b/readconf.c
+@@ -182,6 +182,7 @@ typedef enum {
+ oPubkeyAcceptedAlgorithms, oCASignatureAlgorithms, oProxyJump,
+ oSecurityKeyProvider, oKnownHostsCommand, oRequiredRSASize,
+ oEnableEscapeCommandline, oObscureKeystrokeTiming, oChannelTimeout,
++ oProtocolKeepAlives, oSetupTimeOut,
+ oIgnore, oIgnoredUnknownOption, oDeprecated, oUnsupported
+ } OpCodes;
+
+@@ -345,6 +346,8 @@ static struct {
+ { "enableescapecommandline", oEnableEscapeCommandline },
+ { "obscurekeystroketiming", oObscureKeystrokeTiming },
+ { "channeltimeout", oChannelTimeout },
++ { "protocolkeepalives", oProtocolKeepAlives },
++ { "setuptimeout", oSetupTimeOut },
+
+ { NULL, oBadOption }
+ };
+@@ -1867,6 +1870,8 @@ parse_pubkey_algos:
+ goto parse_flag;
+
+ case oServerAliveInterval:
++ case oProtocolKeepAlives: /* Debian-specific compatibility alias */
++ case oSetupTimeOut: /* Debian-specific compatibility alias */
+ intptr = &options->server_alive_interval;
+ goto parse_time;
+
+@@ -2820,8 +2825,13 @@ fill_default_options(Options * options)
+ options->rekey_interval = 0;
+ if (options->verify_host_key_dns == -1)
+ options->verify_host_key_dns = 0;
+- if (options->server_alive_interval == -1)
+- options->server_alive_interval = 0;
++ if (options->server_alive_interval == -1) {
++ /* in batch mode, default is 5mins */
++ if (options->batch_mode == 1)
++ options->server_alive_interval = 300;
++ else
++ options->server_alive_interval = 0;
++ }
+ if (options->server_alive_count_max == -1)
+ options->server_alive_count_max = 3;
+ if (options->control_master == -1)
+diff --git a/ssh_config.5 b/ssh_config.5
+index 7ca72aedf..25ccbed28 100644
+--- a/ssh_config.5
++++ b/ssh_config.5
+@@ -297,9 +297,13 @@ If set to
+ .Cm yes ,
+ user interaction such as password prompts and host key confirmation requests
+ will be disabled.
++In addition, the
++.Cm ServerAliveInterval
++option will be set to 300 seconds by default (Debian-specific).
+ This option is useful in scripts and other batch jobs where no user
+ is present to interact with
+-.Xr ssh 1 .
++.Xr ssh 1 ,
++and where it is desirable to detect a broken network swiftly.
+ The argument must be
+ .Cm yes
+ or
+@@ -1913,7 +1917,14 @@ from the server,
+ will send a message through the encrypted
+ channel to request a response from the server.
+ The default
+-is 0, indicating that these messages will not be sent to the server.
++is 0, indicating that these messages will not be sent to the server,
++or 300 if the
++.Cm BatchMode
++option is set (Debian-specific).
++.Cm ProtocolKeepAlives
++and
++.Cm SetupTimeOut
++are Debian-specific compatibility aliases for this option.
+ .It Cm SessionType
+ May be used to either request invocation of a subsystem on the remote system,
+ or to prevent the execution of a remote command at all.
+@@ -2027,6 +2038,12 @@ Specifies whether the system should send TCP keepalive messages to the
+ other side.
+ If they are sent, death of the connection or crash of one
+ of the machines will be properly noticed.
++This option only uses TCP keepalives (as opposed to using ssh level
++keepalives), so takes a long time to notice when the connection dies.
++As such, you probably want
++the
++.Cm ServerAliveInterval
++option as well.
+ However, this means that
+ connections will die if the route is down temporarily, and some people
+ find it annoying.
+diff --git a/sshd_config.5 b/sshd_config.5
+index d2f09de9b..5de2fd8cf 100644
+--- a/sshd_config.5
++++ b/sshd_config.5
+@@ -1842,6 +1842,9 @@ This avoids infinitely hanging sessions.
+ .Pp
+ To disable TCP keepalive messages, the value should be set to
+ .Cm no .
++.Pp
++This option was formerly called
++.Cm KeepAlive .
+ .It Cm TrustedUserCAKeys
+ Specifies a file containing public keys of certificate authorities that are
+ trusted to sign user certificates for authentication, or