X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fgraph.c;h=5afa7c32526509a31b610e8153d26c4c41a87829;hb=2bf1a40fa455564a4aac52349d70e9fedb163721;hp=9955ea41644721a208041de60860329158998e04;hpb=8d4ac42ceb67a93fc1e5c0d045819597c5da47d0;p=meshlink

diff --git a/src/graph.c b/src/graph.c
index 9955ea41..5afa7c32 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -144,16 +144,35 @@ static void check_reachability(meshlink_handle_t *mesh) {
 			if(n->utcp) {
 				utcp_abort_all_connections(n->utcp);
 			}
+
+			if(n->status.visited == n->status.reachable) {
+				/* This session replaces the previous one without changing reachability status.
+				 * We still need to reset the UDP SPTPS state.
+				 */
+				n->status.validkey = false;
+				sptps_stop(&n->sptps);
+				n->status.waitingforkey = false;
+				n->last_req_key = 0;
+
+				n->status.udp_confirmed = false;
+				n->maxmtu = MTU;
+				n->minmtu = 0;
+				n->mtuprobes = 0;
+
+				timeout_del(&mesh->loop, &n->mtutimeout);
+			}
 		}
 
 		if(n->status.visited != n->status.reachable) {
 			n->status.reachable = !n->status.reachable;
-			n->last_state_change = mesh->loop.now.tv_sec;
+			n->status.dirty = true;
 
 			if(n->status.reachable) {
 				logger(mesh, MESHLINK_DEBUG, "Node %s became reachable", n->name);
+				n->last_reachable = mesh->loop.now.tv_sec;
 			} else {
 				logger(mesh, MESHLINK_DEBUG, "Node %s became unreachable", n->name);
+				n->last_unreachable = mesh->loop.now.tv_sec;
 			}
 
 			/* TODO: only clear status.validkey if node is unreachable? */