X-Git-Url: http://git.meshlink.io/?p=meshlink;a=blobdiff_plain;f=src%2Froute.c;h=9897d0d7e260f602ad809ff595d48226ffe60c6b;hp=f18bd268305a520cc3ba7c1d22e6aacf7fa2c15b;hb=79e46d08a46f2fef2ee4e8eac7ba487007160564;hpb=4ce4af4c712c80d08630767ec34787253da1021b

diff --git a/src/route.c b/src/route.c
index f18bd268..9897d0d7 100644
--- a/src/route.c
+++ b/src/route.c
@@ -50,7 +50,10 @@ static const size_t ip6_size = sizeof(struct ip6_hdr);
 static const size_t icmp6_size = sizeof(struct icmp6_hdr);
 static const size_t ns_size = sizeof(struct nd_neighbor_solicit);
 static const size_t opt_size = sizeof(struct nd_opt_hdr);
-#define max(a, b) ((a) > (b) ? (a) : (b))
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
 
 static struct event age_subnets_event;
 
@@ -412,10 +415,10 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) {
 	if(directonly && subnet->owner != via)
 		return route_ipv4_unreachable(source, packet, ICMP_DEST_UNREACH, ICMP_NET_ANO);
 
-	if(via && packet->len > max(via->mtu, 590) && via != myself) {
+	if(via && packet->len > MAX(via->mtu, 590) && via != myself) {
 		ifdebug(TRAFFIC) logger(LOG_INFO, "Packet for %s (%s) length %d larger than MTU %d", subnet->owner->name, subnet->owner->hostname, packet->len, via->mtu);
 		if(packet->data[20] & 0x40) {
-			packet->len = max(via->mtu, 590);
+			packet->len = MAX(via->mtu, 590);
 			route_ipv4_unreachable(source, packet, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED);
 		} else {
 			fragment_ipv4_packet(via, packet);
@@ -563,9 +566,9 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) {
 	if(directonly && subnet->owner != via)
 		return route_ipv6_unreachable(source, packet, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
 
-	if(via && packet->len > max(via->mtu, 1294) && via != myself) {
+	if(via && packet->len > MAX(via->mtu, 1294) && via != myself) {
 		ifdebug(TRAFFIC) logger(LOG_INFO, "Packet for %s (%s) length %d larger than MTU %d", subnet->owner->name, subnet->owner->hostname, packet->len, via->mtu);
-		packet->len = max(via->mtu, 1294);
+		packet->len = MAX(via->mtu, 1294);
 		route_ipv6_unreachable(source, packet, ICMP6_PACKET_TOO_BIG, 0);
 		return;
 	}