X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fgraph.c;h=c6e413d40f6fae3e1a763d74ded701f209d2e409;hb=42fe08d7834df4ef2c12af9f78d14f606dc4651d;hp=18376c14956a619a9e99441365fd44c42a7cfa18;hpb=529b8fab8c21e7ae5af91d742ff202eab38e51f3;p=meshlink

diff --git a/src/graph.c b/src/graph.c
index 18376c14..c6e413d4 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -72,7 +72,7 @@ static void sssp_bfs(meshlink_handle_t *mesh) {
 
 	/* Begin with mesh->self */
 
-	mesh->self->status.visited = true;
+	mesh->self->status.visited = mesh->threadstarted;
 	mesh->self->nexthop = mesh->self;
 	mesh->self->prevedge = NULL;
 	mesh->self->distance = 0;
@@ -158,7 +158,7 @@ static void check_reachability(meshlink_handle_t *mesh) {
 				n->status.validkey = false;
 				sptps_stop(&n->sptps);
 				n->status.waitingforkey = false;
-				n->last_req_key = 0;
+				n->last_req_key = -3600;
 
 				n->status.udp_confirmed = false;
 				n->maxmtu = MTU;
@@ -173,12 +173,22 @@ static void check_reachability(meshlink_handle_t *mesh) {
 			n->status.reachable = !n->status.reachable;
 			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;
+			if(!n->status.blacklisted) {
+				if(n->status.reachable) {
+					logger(mesh, MESHLINK_DEBUG, "Node %s became reachable", n->name);
+					bool first_time_reachable = !n->last_reachable;
+					n->last_reachable = time(NULL);
+
+					if(first_time_reachable) {
+						if(!node_write_config(mesh, n)) {
+							logger(mesh, MESHLINK_WARNING, "Could not write host config file for node %s!\n", n->name);
+
+						}
+					}
+				} else {
+					logger(mesh, MESHLINK_DEBUG, "Node %s became unreachable", n->name);
+					n->last_unreachable = time(NULL);
+				}
 			}
 
 			/* TODO: only clear status.validkey if node is unreachable? */
@@ -186,7 +196,7 @@ static void check_reachability(meshlink_handle_t *mesh) {
 			n->status.validkey = false;
 			sptps_stop(&n->sptps);
 			n->status.waitingforkey = false;
-			n->last_req_key = 0;
+			n->last_req_key = -3600;
 
 			n->status.udp_confirmed = false;
 			n->maxmtu = MTU;
@@ -218,8 +228,8 @@ static void check_reachability(meshlink_handle_t *mesh) {
 		if(!reachable) {
 			mesh->last_unreachable = mesh->loop.now.tv_sec;
 
-			if(mesh->threadstarted) {
-				timeout_set(&mesh->loop, &mesh->periodictimer, &(struct timeval) {
+			if(mesh->threadstarted && mesh->periodictimer.cb) {
+				timeout_set(&mesh->loop, &mesh->periodictimer, &(struct timespec) {
 					0, prng(mesh, TIMER_FUDGE)
 				});
 			}