- djm@cvs.openbsd.org 2010/07/19 09:15:12

     [clientloop.c readconf.c readconf.h ssh.c ssh_config.5]
     add a "ControlPersist" option that automatically starts a background
     ssh(1) multiplex master when connecting. This connection can stay alive
     indefinitely, or can be set to automatically close after a user-specified
     duration of inactivity. bz#1330 - patch by dwmw2 AT infradead.org, but
     further hacked on by wmertens AT cisco.com, apb AT cequrux.com,
     martin-mindrot-bugzilla AT earth.li and myself; "looks ok" markus@

1 files changed, 34 insertions, 2 deletions

diff --git a/readconf.c b/readconf.c
index da48ae7da..0296590e2 100644
--- a/readconf.c
+++ b/readconf.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: readconf.c,v 1.186 2010/06/25 23:15:36 djm Exp $ */
+/* $OpenBSD: readconf.c,v 1.187 2010/07/19 09:15:12 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -128,7 +128,8 @@ typedef enum {
         oEnableSSHKeysign, oRekeyLimit, oVerifyHostKeyDNS, oConnectTimeout,
         oAddressFamily, oGssAuthentication, oGssDelegateCreds,
         oServerAliveInterval, oServerAliveCountMax, oIdentitiesOnly,
-        oSendEnv, oControlPath, oControlMaster, oHashKnownHosts,
+        oSendEnv, oControlPath, oControlMaster, oControlPersist,
+        oHashKnownHosts,
         oTunnel, oTunnelDevice, oLocalCommand, oPermitLocalCommand,
         oVisualHostKey, oUseRoaming, oZeroKnowledgePasswordAuthentication,
         oDeprecated, oUnsupported
@@ -225,6 +226,7 @@ static struct {
         { "sendenv", oSendEnv },
         { "controlpath", oControlPath },
         { "controlmaster", oControlMaster },
+        { "controlpersist", oControlPersist },
         { "hashknownhosts", oHashKnownHosts },
         { "tunnel", oTunnel },
         { "tunneldevice", oTunnelDevice },
@@ -882,6 +884,30 @@ parse_int:
                         *intptr = value;
                 break;
 
+        case oControlPersist:
+                /* no/false/yes/true, or a time spec */
+                intptr = &options->control_persist;
+                arg = strdelim(&s);
+                if (!arg || *arg == '\0')
+                        fatal("%.200s line %d: Missing ControlPersist"
+                            " argument.", filename, linenum);
+                value = 0;
+                value2 = 0;     /* timeout */
+                if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0)
+                        value = 0;
+                else if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0)
+                        value = 1;
+                else if ((value2 = convtime(arg)) >= 0)
+                        value = 1;
+                else
+                        fatal("%.200s line %d: Bad ControlPersist argument.",
+                            filename, linenum);
+                if (*activep && *intptr == -1) {
+                        *intptr = value;
+                        options->control_persist_timeout = value2;
+                }
+                break;
+
         case oHashKnownHosts:
                 intptr = &options->hash_known_hosts;
                 goto parse_flag;
@@ -1083,6 +1109,8 @@ initialize_options(Options * options)
         options->num_send_env = 0;
         options->control_path = NULL;
         options->control_master = -1;
+        options->control_persist = -1;
+        options->control_persist_timeout = 0;
         options->hash_known_hosts = -1;
         options->tun_open = -1;
         options->tun_local = -1;
@@ -1218,6 +1246,10 @@ fill_default_options(Options * options)
                 options->server_alive_count_max = 3;
         if (options->control_master == -1)
                 options->control_master = 0;
+        if (options->control_persist == -1) {
+                options->control_persist = 0;
+                options->control_persist_timeout = 0;
+        }
         if (options->hash_known_hosts == -1)
                 options->hash_known_hosts = 0;
         if (options->tun_open == -1)