Remember ToS/Diffserv priority for each socket individually.
[oweals/tinc.git] / src / net_packet.c
index dbf6546..e67857c 100644 (file)
@@ -415,9 +415,6 @@ static void send_udppacket(node_t *n, vpn_packet_t *origpkt) {
        vpn_packet_t *outpkt;
        int origlen;
        int outlen, outpad;
-#if (defined(SOL_IP) && defined(IP_TOS)) || (defined(IPPROTO_IPV6) && defined(IPV6_TCLASS))
-       static int priority = 0;
-#endif
        int origpriority;
 
        if(!n->status.reachable) {
@@ -549,23 +546,27 @@ static void send_udppacket(node_t *n, vpn_packet_t *origpkt) {
                sock = n->sock;
        }
 
+       if(priorityinheritance && origpriority != listen_socket[n->sock].priority) {
+               listen_socket[n->sock].priority = origpriority;
+               switch(listen_socket[n->sock].sa.sa.sa_family) {
 #if defined(SOL_IP) && defined(IP_TOS)
-       if(priorityinheritance && origpriority != priority && listen_socket[n->sock].sa.sa.sa_family == AF_INET) {
-               priority = origpriority;
-               ifdebug(TRAFFIC) logger(LOG_DEBUG, "Setting IPv4 outgoing packet priority to %d", priority);
-               if(setsockopt(listen_socket[n->sock].udp, SOL_IP, IP_TOS, &priority, sizeof(priority))) /* SO_PRIORITY doesn't seem to work */
-                       logger(LOG_ERR, "System call `%s' failed: %s", "setsockopt", strerror(errno));
-       }
+               case AF_INET:
+                       ifdebug(TRAFFIC) logger(LOG_DEBUG, "Setting IPv4 outgoing packet priority to %d", origpriority);
+                       if(setsockopt(listen_socket[n->sock].udp, SOL_IP, IP_TOS, &origpriority, sizeof(origpriority))) /* SO_PRIORITY doesn't seem to work */
+                               logger(LOG_ERR, "System call `%s' failed: %s", "setsockopt", strerror(errno));
+                       break;
 #endif
-
 #if defined(IPPROTO_IPV6) && defined(IPV6_TCLASS)
-       if(priorityinheritance && origpriority != priority && listen_socket[n->sock].sa.sa.sa_family == AF_INET6) {
-               priority = origpriority;
-               ifdebug(TRAFFIC) logger(LOG_DEBUG, "Setting IPv6 outgoing packet priority to %d", priority);
-               if(setsockopt(listen_socket[n->sock].udp, IPPROTO_IPV6, IPV6_TCLASS, &priority, sizeof(priority)))      /* SO_PRIORITY doesn't seem to work */
-                       logger(LOG_ERR, "System call `%s' failed: %s", "setsockopt", strerror(errno));
-       }
+               case AF_INET6:
+                       ifdebug(TRAFFIC) logger(LOG_DEBUG, "Setting IPv6 outgoing packet priority to %d", origpriority);
+                       if(setsockopt(listen_socket[n->sock].udp, IPPROTO_IPV6, IPV6_TCLASS, &origpriority, sizeof(origpriority)))
+                               logger(LOG_ERR, "System call `%s' failed: %s", "setsockopt", strerror(errno));
+                       break;
 #endif
+               default:
+                       break;
+               }
+       }
 
        if(sendto(listen_socket[sock].udp, (char *) &inpkt->seqno, inpkt->len, 0, sa, sl) < 0 && !sockwouldblock(sockerrno)) {
                if(sockmsgsize(sockerrno)) {