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-rw-r--r--debian/patches/keepalive-extensions.patch124
1 files changed, 124 insertions, 0 deletions
diff --git a/debian/patches/keepalive-extensions.patch b/debian/patches/keepalive-extensions.patch
new file mode 100644
index 000000000..eab9914f2
--- /dev/null
+++ b/debian/patches/keepalive-extensions.patch
@@ -0,0 +1,124 @@
1Description: Various keepalive extensions
2 Add compatibility aliases for ProtocolKeepAlives and SetupTimeOut,
3 supported in previous versions of Debian's OpenSSH package but since
4 superseded by ServerAliveInterval. (We're probably stuck with this bit for
5 compatibility.)
6 .
7 In batch mode, default ServerAliveInterval to five minutes.
8 .
9 Adjust documentation to match and to give some more advice on use of
10 keepalives.
11Author: Richard Kettlewell <rjk@greenend.org.uk>
12Author: Ian Jackson <ian@chiark.greenend.org.uk>
13Author: Matthew Vernon <matthew@debian.org>
14Author: Colin Watson <cjwatson@debian.org>
15Last-Update: 2010-02-27
16
17Index: b/readconf.c
18===================================================================
19--- a/readconf.c
20+++ b/readconf.c
21@@ -138,6 +138,7 @@
22 oTunnel, oTunnelDevice, oLocalCommand, oPermitLocalCommand,
23 oVisualHostKey, oUseRoaming, oZeroKnowledgePasswordAuthentication,
24 oKexAlgorithms, oIPQoS, oRequestTTY,
25+ oProtocolKeepAlives, oSetupTimeOut,
26 oDeprecated, oUnsupported
27 } OpCodes;
28
29@@ -259,6 +260,8 @@
30 { "kexalgorithms", oKexAlgorithms },
31 { "ipqos", oIPQoS },
32 { "requesttty", oRequestTTY },
33+ { "protocolkeepalives", oProtocolKeepAlives },
34+ { "setuptimeout", oSetupTimeOut },
35
36 { NULL, oBadOption }
37 };
38@@ -915,6 +918,8 @@
39 goto parse_flag;
40
41 case oServerAliveInterval:
42+ case oProtocolKeepAlives: /* Debian-specific compatibility alias */
43+ case oSetupTimeOut: /* Debian-specific compatibility alias */
44 intptr = &options->server_alive_interval;
45 goto parse_time;
46
47@@ -1386,8 +1391,13 @@
48 options->rekey_limit = 0;
49 if (options->verify_host_key_dns == -1)
50 options->verify_host_key_dns = 0;
51- if (options->server_alive_interval == -1)
52- options->server_alive_interval = 0;
53+ if (options->server_alive_interval == -1) {
54+ /* in batch mode, default is 5mins */
55+ if (options->batch_mode == 1)
56+ options->server_alive_interval = 300;
57+ else
58+ options->server_alive_interval = 0;
59+ }
60 if (options->server_alive_count_max == -1)
61 options->server_alive_count_max = 3;
62 if (options->control_master == -1)
63Index: b/ssh_config.5
64===================================================================
65--- a/ssh_config.5
66+++ b/ssh_config.5
67@@ -136,8 +136,12 @@
68 If set to
69 .Dq yes ,
70 passphrase/password querying will be disabled.
71+In addition, the
72+.Cm ServerAliveInterval
73+option will be set to 300 seconds by default.
74 This option is useful in scripts and other batch jobs where no user
75-is present to supply the password.
76+is present to supply the password,
77+and where it is desirable to detect a broken network swiftly.
78 The argument must be
79 .Dq yes
80 or
81@@ -1100,8 +1104,15 @@
82 will send a message through the encrypted
83 channel to request a response from the server.
84 The default
85-is 0, indicating that these messages will not be sent to the server.
86+is 0, indicating that these messages will not be sent to the server,
87+or 300 if the
88+.Cm BatchMode
89+option is set.
90 This option applies to protocol version 2 only.
91+.Cm ProtocolKeepAlives
92+and
93+.Cm SetupTimeOut
94+are Debian-specific compatibility aliases for this option.
95 .It Cm StrictHostKeyChecking
96 If this flag is set to
97 .Dq yes ,
98@@ -1140,6 +1151,12 @@
99 other side.
100 If they are sent, death of the connection or crash of one
101 of the machines will be properly noticed.
102+This option only uses TCP keepalives (as opposed to using ssh level
103+keepalives), so takes a long time to notice when the connection dies.
104+As such, you probably want
105+the
106+.Cm ServerAliveInterval
107+option as well.
108 However, this means that
109 connections will die if the route is down temporarily, and some people
110 find it annoying.
111Index: b/sshd_config.5
112===================================================================
113--- a/sshd_config.5
114+++ b/sshd_config.5
115@@ -1037,6 +1037,9 @@
116 .Pp
117 To disable TCP keepalive messages, the value should be set to
118 .Dq no .
119+.Pp
120+This option was formerly called
121+.Cm KeepAlive .
122 .It Cm TrustedUserCAKeys
123 Specifies a file containing public keys of certificate authorities that are
124 trusted to sign user certificates for authentication.