Immediately exchange keys when establishing a meta connection.

This in turn will trigger PMTU discovery, and ensures nodes know each others
reflexive UDP address and port.

diff --git a/src/graph.c b/src/graph.c
index 7288f74bf4ebc8b0c4293cb638e77e15ae081511..977262379b65eaaa09cdcbce24ad533e3ed8ddc0 100644 (file)
--- a/src/graph.c
+++ b/src/graph.c
@@ -53,6 +53,7 @@
 #include "netutl.h"
 #include "node.h"
 #include "process.h"
+#include "protocol.h"
 #include "subnet.h"
 #include "utils.h"
 #include "xalloc.h"
@@ -289,6 +290,8 @@ void sssp_bfs(void) {
 
                        if(!n->status.reachable)
                                update_node_udp(n, NULL);
+                       else if(n->connection)
+                               send_ans_key(n);
                }
        }
 }