X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Froute.c;h=fc08f5f7aae7c8cb3a1a87bb3c96821677e1a672;hb=d6b45d005530496e48325a6174ecdd889a17bfc1;hp=dcc6f3c6bfc32d9d2824ce342ee23027c613dec0;hpb=b0ffeb7eeb21920842382c302ca15ec0d758e9b6;p=tinc

diff --git a/src/route.c b/src/route.c
index dcc6f3c6..fc08f5f7 100644
--- a/src/route.c
+++ b/src/route.c
@@ -1,7 +1,7 @@
 /*
     route.c -- routing
     Copyright (C) 2000-2005 Ivo Timmermans,
-                  2000-2013 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2018 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -165,7 +165,7 @@ static void route_ipv4_unreachable(node_t *source, vpn_packet_t *packet, length_
 				addr.sin_family = AF_INET;
 				socklen_t addrlen = sizeof(addr);
 
-				if(!getsockname(sockfd, (struct sockaddr *) &addr, &addrlen) && addrlen <= sizeof(addr)) {
+				if(!getsockname(sockfd, (struct sockaddr *) &addr, &addrlen) && (size_t)addrlen <= sizeof(addr)) {
 					ip_dst = addr.sin_addr;
 				}
 			}
@@ -270,7 +270,7 @@ static void route_ipv6_unreachable(node_t *source, vpn_packet_t *packet, length_
 				addr.sin6_family = AF_INET6;
 				socklen_t addrlen = sizeof(addr);
 
-				if(!getsockname(sockfd, (struct sockaddr *) &addr, &addrlen) && addrlen <= sizeof(addr)) {
+				if(!getsockname(sockfd, (struct sockaddr *) &addr, &addrlen) && (size_t)addrlen <= sizeof(addr)) {
 					pseudo.ip6_src = addr.sin6_addr;
 				}
 			}
@@ -598,7 +598,7 @@ static void fragment_ipv4_packet(node_t *dest, vpn_packet_t *packet, length_t et
 	logger(DEBUG_TRAFFIC, LOG_INFO, "Fragmenting packet of %d bytes to %s (%s)", packet->len, dest->name, dest->hostname);
 
 	offset = DATA(packet) + ether_size + ip_size;
-	maxlen = (dest->mtu - ether_size - ip_size) & ~0x7;
+	maxlen = (MAX(dest->mtu, 590) - ether_size - ip_size) & ~0x7;
 	ip_off = ntohs(ip.ip_off);
 	origf = ip_off & ~IP_OFFMASK;
 	ip_off &= IP_OFFMASK;