From 6749281a87864273294b9b93c33b12cca7c12795 Mon Sep 17 00:00:00 2001
From: Nicolas Tsiftes <nvt@sics.se>
Date: Thu, 23 Jun 2011 14:45:11 +0200
Subject: [PATCH] Rediscover lost routes when forwarding packets. Also refresh
 route entries when sending packets through them. Patch from Jaroslav Meduna.

---
 core/net/rime/mesh.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/net/rime/mesh.c b/core/net/rime/mesh.c
index 5547f1f60..779628c97 100644
--- a/core/net/rime/mesh.c
+++ b/core/net/rime/mesh.c
@@ -89,10 +89,15 @@ data_packet_forward(struct multihop_conn *multihop,
 		    const rimeaddr_t *prevhop, uint8_t hops)
 {
   struct route_entry *rt;
+  struct mesh_conn *c = (struct mesh_conn *)
+    ((char *)multihop - offsetof(struct mesh_conn, multihop));
 
   rt = route_lookup(dest);
   if(rt == NULL) {
+    route_discovery_discover(&c->route_discovery_conn, dest, PACKET_TIMEOUT);
     return NULL;
+  } else {
+    route_refresh(rt);
   }
   
   return &rt->nexthop;