Try to get a new reflexive UDP address if UDP probes failed.

[meshlink] / src / net_packet.c

diff --git a/src/net_packet.c b/src/net_packet.c
index 53228369f931dd27cb75fc0b4bb211552b900a9c..0510b54be8def584f8b9f33d78329b4d852baaa7 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -102,6 +102,12 @@ static void send_mtu_probe_handler(event_loop_t *loop, void *data) {
        }
 
        if(n->mtuprobes == 31) {
+               if(!n->minmtu && n->status.want_udp) {
+                       /* Send a dummy ANS_KEY to try to update the reflexive UDP address */
+                       send_request(mesh, n->nexthop->connection, NULL, "%d %s %s . -1 -1 -1 0", ANS_KEY, mesh->self->name, n->name);
+                       n->status.want_udp = false;
+               }
+
                timeout = mesh->dev_class_traits[n->devclass].pinginterval;
                goto end;
        } else if(n->mtuprobes == 32) {
@@ -472,6 +478,7 @@ void send_packet(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *packet) {
 
        n->out_packets++;
        n->out_bytes += packet->len;
+       n->status.want_udp = true;
 
        send_sptps_packet(mesh, n, packet);
        return;