Added --route-metric option to set a default route metric

for --route (Roy Marples).


git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@1011 e7ae566f-a301-0410-adde-c780ea21d3b5

ChangeLog

@@ -7,10 +7,15 @@ $Id$
 
 * Fixed Windows server bug in time backtrack handling code which
   could cause TLS negotiation failures on legitimate clients.
+	
 * Rewrote gettimeofday function for Windows to be
   simpler and more efficient.
+	
 * Merged PKCS#11 extensions to easy-rsa/2.0  (Alon Bar-Lev).
 
+* Added --route-metric option to set a default route metric
+  for --route (Roy Marples).
+	
 2006.04.12 -- Version 2.1-beta13
 
 * Code added in 2.1-beta7 and 2.0.6-rc1 to extend byte counters

init.c

@@ -634,15 +634,19 @@ do_init_route_list (const struct options *options,
 {
   const char *gw = NULL;
   int dev = dev_type_enum (options->dev, options->dev_type);
+  int metric = 0;
 
   if (dev == DEV_TYPE_TUN && (options->topology == TOP_NET30 || options->topology == TOP_P2P))
     gw = options->ifconfig_remote_netmask;
   if (options->route_default_gateway)
     gw = options->route_default_gateway;
+  if (options->route_default_metric)
+    metric = options->route_default_metric;
 
   if (!init_route_list (route_list,
 			options->routes,
 			gw,
+			metric,
 			link_socket_current_remote (link_socket_info),
 			es))
     {

openvpn.8

@@ -240,6 +240,7 @@ openvpn \- secure IP tunnel daemon.
 [\ \fB\-\-route\-delay\fR\ \fI[n]\ [w]\fR\ ]
 [\ \fB\-\-route\-gateway\fR\ \fIgw\fR\ ]
 [\ \fB\-\-route\-method\fR\ \fIm\fR\ ]
+[\ \fB\-\-route\-metric\fR\ \fIm\fR\ ]
 [\ \fB\-\-route\-noexec\fR\ ]
 [\ \fB\-\-route\-nopull\fR\ ]
 [\ \fB\-\-route\-up\fR\ \fIcmd\fR\ ]
@@ -1037,6 +1038,11 @@ when
 .B --dev tun
 is specified.
 
+.B metric
+default -- taken from
+.B --route-metric
+otherwise 0.
+
 The default can be specified by leaving an option blank or setting
 it to "default".
 
@@ -1073,6 +1079,12 @@ Specify a default gateway
 .B gw
 for use with
 .B --route.
+.TP
+.B --route-metric m
+Specify a default metric
+.B m
+for use with
+.B --route.
 .\"*********************************************************
 .TP
 .B --route-delay [n] [w]

options.c

@@ -166,6 +166,7 @@ static const char usage_message[] =
   "                  gateway default: taken from --route-gateway or --ifconfig\n"
   "                  Specify default by leaving blank or setting to \"nil\".\n"
   "--route-gateway gw : Specify a default gateway for use with --route.\n"
+  "--route-metric m : Specify a default metric for use with --route.\n"
   "--route-delay n [w] : Delay n seconds after connection initiation before\n"
   "                  adding routes (may be 0).  If not specified, routes will\n"
   "                  be added immediately after tun/tap open.  On Windows, wait\n"
@@ -1175,6 +1176,7 @@ show_settings (const struct options *o)
 
   SHOW_STR (route_script);
   SHOW_STR (route_default_gateway);
+  SHOW_INT (route_default_metric);
   SHOW_BOOL (route_noexec);
   SHOW_INT (route_delay);
   SHOW_INT (route_delay_window);
@@ -3938,6 +3940,11 @@ add_option (struct options *options,
       VERIFY_PERMISSION (OPT_P_ROUTE_EXTRAS);
       options->route_default_gateway = p[1];      
     }
+  else if (streq (p[0], "route-metric") && p[1])
+    {
+      VERIFY_PERMISSION (OPT_P_ROUTE);
+      options->route_default_metric = positive_atoi (p[1]);
+    }
   else if (streq (p[0], "route-delay"))
     {
       VERIFY_PERMISSION (OPT_P_ROUTE_EXTRAS);

options.h

@@ -243,6 +243,7 @@ struct options
   /* route management */
   const char *route_script;
   const char *route_default_gateway;
+  int route_default_metric;
   bool route_noexec;
   int route_delay;
   int route_delay_window;

route.c

@@ -276,10 +276,10 @@ init_route (struct route *r,
 	}
       r->metric_defined = true;
     }
-  else
+  else if (spec->default_metric_defined)
     {
-      r->metric = 0;
+      r->metric = spec->default_metric;
-      r->metric_defined = false;
+      r->metric_defined = true;
     }
 
   r->defined = true;
@@ -322,6 +322,7 @@ bool
 init_route_list (struct route_list *rl,
 		 const struct route_option_list *opt,
 		 const char *remote_endpoint,
+		 int default_metric,
 		 in_addr_t remote_host,
 		 struct env_set *es)
 {
@@ -338,6 +339,12 @@ init_route_list (struct route_list *rl,
       rl->spec.remote_host_defined = true;
     }
 
+  if (default_metric)
+    {
+      rl->spec.default_metric = default_metric;
+      rl->spec.default_metric_defined = true;
+    }
+
   rl->spec.net_gateway_defined = get_default_gateway (&rl->spec.net_gateway);
   if (rl->spec.net_gateway_defined)
     {

route.h

@@ -65,6 +65,8 @@ struct route_special_addr
   in_addr_t remote_host;
   bool remote_host_defined;
   struct route_bypass bypass;
+  int default_metric;
+  bool default_metric_defined;
 };
 
 struct route_option {
@@ -132,6 +134,7 @@ void clear_route_list (struct route_list *rl);
 bool init_route_list (struct route_list *rl,
 		      const struct route_option_list *opt,
 		      const char *remote_endpoint,
+		      int default_metric,
 		      in_addr_t remote_host,
 		      struct env_set *es);