+ path2 = path_duplicate (path);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: Retransmitting.\n");
+ peer_info_add_path (dest_peer_info, path2, GNUNET_NO);
+ path2 = path_duplicate (path);
+ peer_info_add_path_to_origin (orig_peer_info, path2, GNUNET_NO);
+ send_create_path (dest_peer_info, path, t);
+ }
+ return GNUNET_OK;
+}
+
+
+/**
+ * Core handler for path destruction
+ *
+ * @param cls closure
+ * @param message message
+ * @param peer peer identity this notification is about
+ * @param atsi performance data
+ * @param atsi_count number of records in 'atsi'
+ *
+ * @return GNUNET_OK to keep the connection open,
+ * GNUNET_SYSERR to close it (signal serious error)
+ */
+static int
+handle_mesh_path_destroy (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
+{
+ struct GNUNET_MESH_ManipulatePath *msg;
+ struct GNUNET_PeerIdentity *pi;
+ struct MeshPeerPath *path;
+ struct MeshTunnel *t;
+ unsigned int own_pos;
+ unsigned int i;
+ size_t size;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "MESH: Received a PATH DESTROY msg from %s\n", GNUNET_i2s (peer));
+ size = ntohs (message->size);
+ if (size < sizeof (struct GNUNET_MESH_ManipulatePath))
+ {
+ GNUNET_break_op (0);
+ return GNUNET_OK;
+ }
+
+ size -= sizeof (struct GNUNET_MESH_ManipulatePath);
+ if (size % sizeof (struct GNUNET_PeerIdentity))
+ {
+ GNUNET_break_op (0);
+ return GNUNET_OK;
+ }
+ size /= sizeof (struct GNUNET_PeerIdentity);
+ if (size < 2)
+ {
+ GNUNET_break_op (0);
+ return GNUNET_OK;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: path has %u hops.\n", size);
+
+ msg = (struct GNUNET_MESH_ManipulatePath *) message;
+ pi = (struct GNUNET_PeerIdentity *) &msg[1];
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "MESH: path is for tunnel %s [%X].\n", GNUNET_i2s (pi),
+ msg->tid);
+ t = tunnel_get (pi, ntohl (msg->tid));
+ if (NULL == t)
+ {
+ /* TODO notify back: we don't know this tunnel */
+ GNUNET_break_op (0);
+ return GNUNET_OK;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: Creating path...\n");
+ path = path_new (size);
+ own_pos = 0;
+ for (i = 0; i < size; i++)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: ... adding %s\n",
+ GNUNET_i2s (&pi[i]));
+ path->peers[i] = GNUNET_PEER_intern (&pi[i]);
+ if (path->peers[i] == myid)
+ own_pos = i;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: Own position: %u\n", own_pos);
+ if (own_pos < path->length - 1)
+ send_message (message, &pi[own_pos + 1]);
+ tunnel_delete_peer (t, path->peers[path->length - 1]);
+ path_destroy (path);
+ return GNUNET_OK;
+}
+
+
+/**
+ * Core handler for notifications of broken paths
+ *
+ * @param cls closure
+ * @param message message
+ * @param peer peer identity this notification is about
+ * @param atsi performance data
+ * @param atsi_count number of records in 'atsi'
+ *
+ * @return GNUNET_OK to keep the connection open,
+ * GNUNET_SYSERR to close it (signal serious error)
+ */
+static int
+handle_mesh_path_broken (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
+{
+ struct GNUNET_MESH_PathBroken *msg;
+ struct MeshTunnel *t;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "MESH: Received a PATH BROKEN msg from %s\n", GNUNET_i2s (peer));
+ msg = (struct GNUNET_MESH_PathBroken *) message;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: regarding %s\n",
+ GNUNET_i2s (&msg->peer1));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: regarding %s\n",
+ GNUNET_i2s (&msg->peer2));
+ t = tunnel_get (&msg->oid, ntohl (msg->tid));
+ if (NULL == t)
+ {
+ GNUNET_break_op (0);
+ return GNUNET_OK;
+ }
+ tunnel_notify_connection_broken (t, GNUNET_PEER_search (&msg->peer1),
+ GNUNET_PEER_search (&msg->peer2));
+ return GNUNET_OK;
+
+}
+
+
+/**
+ * Core handler for tunnel destruction
+ *
+ * @param cls closure
+ * @param message message
+ * @param peer peer identity this notification is about
+ * @param atsi performance data
+ * @param atsi_count number of records in 'atsi'
+ *
+ * @return GNUNET_OK to keep the connection open,
+ * GNUNET_SYSERR to close it (signal serious error)
+ */
+static int
+handle_mesh_tunnel_destroy (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
+{
+ struct GNUNET_MESH_TunnelDestroy *msg;
+ struct MeshTunnel *t;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "MESH: Got a TUNNEL DESTROY packet from %s\n", GNUNET_i2s (peer));
+ msg = (struct GNUNET_MESH_TunnelDestroy *) message;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MESH: for tunnel %s [%u]\n",
+ GNUNET_i2s (&msg->oid), ntohl (msg->tid));
+ t = tunnel_get (&msg->oid, ntohl (msg->tid));
+ if (NULL == t)
+ {
+ /* Probably already got the message from another path,
+ * destroyed the tunnel and retransmitted to children.
+ * Safe to ignore.
+ */
+ return GNUNET_OK;