Make MSS clamping configurable, but enabled by default.

[tinc] / src / net_setup.c

diff --git a/src/net_setup.c b/src/net_setup.c
index cbf631f..7d20803 100644 (file)
--- a/src/net_setup.c
+++ b/src/net_setup.c
@@ -218,8 +218,8 @@ bool setup_myself(void) {
        myself->connection = new_connection();
        init_configuration(&myself->connection->config_tree);
 
-       xasprintf(&myself->hostname, "MYSELF");
-       xasprintf(&myself->connection->hostname, "MYSELF");
+       myself->hostname = xstrdup("MYSELF");
+       myself->connection->hostname = xstrdup("MYSELF");
 
        myself->connection->options = 0;
        myself->connection->protocol_version = PROT_CURRENT;
@@ -246,8 +246,9 @@ bool setup_myself(void) {
        if(!read_rsa_private_key())
                return false;
 
-       if(!get_config_string(lookup_config(myself->connection->config_tree, "Port"), &myport))
-               xasprintf(&myport, "655");
+       if(!get_config_string(lookup_config(config_tree, "Port"), &myport)
+                       && !get_config_string(lookup_config(myself->connection->config_tree, "Port"), &myport))
+               myport = xstrdup("655");
 
        /* Read in all the subnets specified in the host configuration file */
 
@@ -296,13 +297,18 @@ bool setup_myself(void) {
        } else
                routing_mode = RMODE_ROUTER;
 
-       // Enable PMTUDiscovery by default if we are in router mode.
-
-       choice = routing_mode == RMODE_ROUTER;
+       choice = true;
        get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice);
-       if(choice)      
+       get_config_bool(lookup_config(config_tree, "PMTUDiscovery"), &choice);
+       if(choice)
                myself->options |= OPTION_PMTU_DISCOVERY;
 
+       choice = true;
+       get_config_bool(lookup_config(config_tree, "ClampMSS"), &choice);
+       get_config_bool(lookup_config(myself->connection->config_tree, "ClampMSS"), &choice);
+       if(choice)
+               myself->options |= OPTION_CLAMP_MSS;
+
        get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance);
 
 #if !defined(SOL_IP) || !defined(IP_TOS)