X-Git-Url: https://git.librecmc.org/?p=oweals%2Ftinc.git;a=blobdiff_plain;f=src%2Fnet.c;h=08e3cad3ee1bf03a950748209703c47cdc943b7e;hp=64bca947ff08b80c25b4735e68b06321c4e5ae39;hb=66b7aea294896a99df289231143a506b422b994c;hpb=f5122ccecee095b9185b2324dea7bcd9655462ee

diff --git a/src/net.c b/src/net.c
index 64bca94..08e3cad 100644
--- a/src/net.c
+++ b/src/net.c
@@ -44,6 +44,8 @@ bool do_purge = false;
 volatile bool running = false;
 
 time_t now = 0;
+int contradicting_add_edge = 0;
+int contradicting_del_edge = 0;
 
 /* Purge edges and subnets of unreachable nodes. Use carefully. */
 
@@ -278,12 +280,21 @@ static void check_network_activity(fd_set * readset, fd_set * writeset) {
 	int result, i;
 	socklen_t len = sizeof(result);
 	vpn_packet_t packet;
+	static int errors = 0;
 
 	/* check input from kernel */
 	if(device_fd >= 0 && FD_ISSET(device_fd, readset)) {
 		if(read_packet(&packet)) {
+			errors = 0;
 			packet.priority = 0;
 			route(myself, &packet);
+		} else {
+			usleep(errors * 50000);
+			errors++;
+			if(errors > 10) {
+				logger(LOG_ERR, "Too many errors from %s, exiting!", device);
+				running = false;
+			}
 		}
 	}
 
@@ -415,6 +426,19 @@ int main_loop(void) {
 				send_key_changed(broadcast, myself);
 				keyexpires = now + keylifetime;
 			}
+
+			if(contradicting_del_edge && contradicting_add_edge) {
+				logger(LOG_WARNING, "Possible node with same Name as us!");
+
+				if(rand() % 3 == 0) {
+					logger(LOG_ERR, "Shutting down, check configuration of all nodes for duplicate Names!");
+					running = false;
+					break;
+				}
+
+				contradicting_add_edge = 0;
+				contradicting_del_edge = 0;
+			}
 		}
 
 		if(sigalrm) {