Improvements for PMTU discovery and IPv4 packet fragmentation.

[oweals/tinc.git] / src / graph.c

diff --git a/src/graph.c b/src/graph.c
index cd7fbf361f80657a607c68e2fcddaf33917a198e..3ed1d7213b3c7d35b3373eecdeaee9d3c03dbc55 100644 (file)
--- a/src/graph.c
+++ b/src/graph.c
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: graph.c,v 1.1.2.30 2003/10/10 16:23:30 guus Exp $
+    $Id: graph.c,v 1.1.2.34 2003/12/22 11:04:16 guus Exp $
 */
 
 /* We need to generate two trees from the graph:
@@ -229,6 +229,14 @@ void sssp_bfs(void)
 
                                        e->to->hostname = sockaddr2hostname(&e->to->address);
                                        avl_insert_node(node_udp_tree, node);
+
+                                       if(e->to->options & OPTION_PMTU_DISCOVERY) {
+                                               e->to->mtuprobes = 0;
+                                               e->to->minmtu = 0;
+                                               e->to->maxmtu = MTU;
+                                               if(e->to->status.validkey)
+                                                       send_mtu_probe(e->to);
+                                       }
                                }
 
                                node = avl_alloc_node();
@@ -262,6 +270,10 @@ void sssp_bfs(void)
                        n->status.validkey = false;
                        n->status.waitingforkey = false;
 
+                       n->maxmtu = MTU;
+                       n->minmtu = 0;
+                       n->mtuprobes = 0;
+
                        asprintf(&envp[0], "NETNAME=%s", netname ? : "");
                        asprintf(&envp[1], "DEVICE=%s", device ? : "");
                        asprintf(&envp[2], "INTERFACE=%s", iface ? : "");