Add UDP_INFO protocol message.

[tinc] / src / protocol_key.c

diff --git a/src/protocol_key.c b/src/protocol_key.c
index 8cbec1b..c46c14c 100644 (file)
--- a/src/protocol_key.c
+++ b/src/protocol_key.c
@@ -236,6 +236,13 @@ bool req_key_h(connection_t *c, const char *request) {
                return true;
        }
 
+       /* If this is a SPTPS packet, see if sending UDP info helps.
+          Note that we only do this if we're the destination or the static relay;
+          otherwise every hop would initiate its own UDP info message, resulting in elevated chatter. */
+
+       if(experimental && (reqno == REQ_KEY || reqno == REQ_SPTPS) && to->via == myself)
+               send_udp_info(myself, from);
+
        /* Check if this key request is for us */
 
        if(to == myself) {                      /* Yes */