X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Froute.c;h=ef6875955976ef7cafef22fdeb8c2bbfce498e11;hp=bacfa626eda5ad8dcbfc1b860bde35d3ba255c01;hb=985d19caf20058db3c764f0f6fbeafa8bcc59fcc;hpb=4a5c12ec97fa1e82aae2d327fdc648e5203eb478 diff --git a/src/route.c b/src/route.c index bacfa626..ef687595 100644 --- a/src/route.c +++ b/src/route.c @@ -1,8 +1,8 @@ /* route.c -- routing Copyright (C) 2000-2005 Ivo Timmermans, - 2000-2014 Guus Sliepen - 2015 Vittorio Gambaletta + 2000-2017 Guus Sliepen + 2015-2016 Vittorio Gambaletta 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 @@ -104,9 +104,9 @@ static bool checklength(node_t *source, vpn_packet_t *packet, length_t length) { static void swap_mac_addresses(vpn_packet_t *packet) { mac_t tmp; - memcpy(&tmp, &packet->data[0], sizeof tmp); - memcpy(&packet->data[0], &packet->data[6], sizeof tmp); - memcpy(&packet->data[6], &tmp, sizeof tmp); + memcpy(&tmp, &packet->data[0], sizeof(tmp)); + memcpy(&packet->data[0], &packet->data[6], sizeof(tmp)); + memcpy(&packet->data[6], &tmp, sizeof(tmp)); } /* RFC 792 */ @@ -483,7 +483,7 @@ void age_subnets(void) { if(s->expires && s->expires <= now) { ifdebug(TRAFFIC) { char netstr[MAXNETSTR]; - if(net2str(netstr, sizeof netstr, s)) + if(net2str(netstr, sizeof(netstr), s)) logger(LOG_INFO, "Subnet %s expired", netstr); } @@ -562,7 +562,7 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) { node_t *via; ipv4_t dest; - memcpy(&dest, &packet->data[30], sizeof dest); + memcpy(&dest, &packet->data[30], sizeof(dest)); subnet = lookup_subnet_ipv4(&dest); if(!subnet) { @@ -641,7 +641,7 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) { node_t *via; ipv6_t dest; - memcpy(&dest, &packet->data[38], sizeof dest); + memcpy(&dest, &packet->data[38], sizeof(dest)); subnet = lookup_subnet_ipv6(&dest); if(!subnet) { @@ -675,6 +675,9 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) { if(!do_decrement_ttl(source, packet)) return; + if(priorityinheritance) + packet->priority = ((packet->data[14] & 0x0f) << 4) | (packet->data[15] >> 4); + via = (subnet->owner->via == myself) ? subnet->owner->nexthop : subnet->owner->via; if(via == source) { @@ -935,13 +938,13 @@ static void route_mac(node_t *source, vpn_packet_t *packet) { if(source == myself) { mac_t src; - memcpy(&src, &packet->data[6], sizeof src); + memcpy(&src, &packet->data[6], sizeof(src)); learn_mac(&src); } /* Lookup destination address */ - memcpy(&dest, &packet->data[0], sizeof dest); + memcpy(&dest, &packet->data[0], sizeof(dest)); subnet = lookup_subnet_mac(NULL, &dest); if(!subnet) { @@ -963,8 +966,12 @@ static void route_mac(node_t *source, vpn_packet_t *packet) { uint16_t type = packet->data[12] << 8 | packet->data[13]; - if(priorityinheritance && type == ETH_P_IP && packet->len >= ether_size + ip_size) - packet->priority = packet->data[15]; + if(priorityinheritance) { + if(type == ETH_P_IP && packet->len >= ether_size + ip_size) + packet->priority = packet->data[15]; + else if(type == ETH_P_IPV6 && packet->len >= ether_size + ip6_size) + packet->priority = ((packet->data[14] & 0x0f) << 4) | (packet->data[15] >> 4); + } // Handle packets larger than PMTU