X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Froute.c;h=c76046689352dbdf72700844ff77dad5bc22d34c;hb=8ac096b5bf9da1b3961a3ac4a03d083629222a63;hp=c73ac9f2e5374c9aaba874bdefd3381b7666d797;hpb=a1bd3a291379492c8ffecd53792065dc20a28c79;p=tinc diff --git a/src/route.c b/src/route.c index c73ac9f2..c7604668 100644 --- a/src/route.c +++ b/src/route.c @@ -101,7 +101,7 @@ static bool ratelimit(int frequency) { static bool checklength(node_t *source, vpn_packet_t *packet, length_t length) { if(packet->len < length) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Got too short packet from %s (%s)", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Got too short packet from %s (%s)", source->name, source->hostname); return false; } else return true; @@ -164,7 +164,7 @@ static void clamp_mss(const node_t *source, const node_t *via, vpn_packet_t *pac if(oldmss <= newmss) break; - ifdebug(TRAFFIC) logger(LOG_INFO, "Clamping MSS of packet from %s to %s to %d", source->name, via->name, newmss); + logger(DEBUG_TRAFFIC, LOG_INFO, "Clamping MSS of packet from %s to %s to %d", source->name, via->name, newmss); /* Update the MSS value and the checksum */ packet->data[start + 22 + i] = newmss >> 8; @@ -197,10 +197,10 @@ static void age_subnets(int fd, short events, void *data) { next = node->next; s = node->data; if(s->expires && s->expires < now) { - ifdebug(TRAFFIC) { + if(debug_level >= DEBUG_TRAFFIC) { char netstr[MAXNETSTR]; if(net2str(netstr, sizeof netstr, s)) - logger(LOG_INFO, "Subnet %s expired", netstr); + logger(DEBUG_TRAFFIC, LOG_INFO, "Subnet %s expired", netstr); } for(node2 = connection_tree->head; node2; node2 = node2->next) { @@ -230,7 +230,7 @@ static void learn_mac(mac_t *address) { /* If we don't know this MAC address yet, store it */ if(!subnet) { - ifdebug(TRAFFIC) logger(LOG_INFO, "Learned new MAC address %hx:%hx:%hx:%hx:%hx:%hx", + logger(DEBUG_TRAFFIC, LOG_INFO, "Learned new MAC address %hx:%hx:%hx:%hx:%hx:%hx", address->x[0], address->x[1], address->x[2], address->x[3], address->x[4], address->x[5]); @@ -350,11 +350,11 @@ static void fragment_ipv4_packet(node_t *dest, vpn_packet_t *packet) { todo = ntohs(ip.ip_len) - ip_size; if(ether_size + ip_size + todo != packet->len) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Length of packet (%d) doesn't match length in IPv4 header (%d)", packet->len, (int)(ether_size + ip_size + todo)); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Length of packet (%d) doesn't match length in IPv4 header (%d)", packet->len, (int)(ether_size + ip_size + todo)); return; } - ifdebug(TRAFFIC) logger(LOG_INFO, "Fragmenting packet of %d bytes to %s (%s)", packet->len, dest->name, dest->hostname); + logger(DEBUG_TRAFFIC, LOG_INFO, "Fragmenting packet of %d bytes to %s (%s)", packet->len, dest->name, dest->hostname); offset = packet->data + ether_size + ip_size; maxlen = (dest->mtu - ether_size - ip_size) & ~0x7; @@ -391,7 +391,7 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) { subnet = lookup_subnet_ipv4(&dest); if(!subnet) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet from %s (%s): unknown IPv4 destination address %d.%d.%d.%d", + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet from %s (%s): unknown IPv4 destination address %d.%d.%d.%d", source->name, source->hostname, dest.x[0], dest.x[1], @@ -403,7 +403,7 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) { } if(subnet->owner == source) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Packet looping back to %s (%s)!", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Packet looping back to %s (%s)!", source->name, source->hostname); return; } @@ -419,7 +419,7 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) { via = (subnet->owner->via == myself) ? subnet->owner->nexthop : subnet->owner->via; if(via == source) { - ifdebug(TRAFFIC) logger(LOG_ERR, "Routing loop for packet from %s (%s)!", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_ERR, "Routing loop for packet from %s (%s)!", source->name, source->hostname); return; } @@ -427,7 +427,7 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) { return route_ipv4_unreachable(source, packet, ICMP_DEST_UNREACH, ICMP_NET_ANO); 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); + logger(DEBUG_TRAFFIC, 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); route_ipv4_unreachable(source, packet, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED); @@ -546,7 +546,7 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) { subnet = lookup_subnet_ipv6(&dest); if(!subnet) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet from %s (%s): unknown IPv6 destination address %hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx", + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet from %s (%s): unknown IPv6 destination address %hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx", source->name, source->hostname, ntohs(dest.x[0]), ntohs(dest.x[1]), @@ -562,7 +562,7 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) { } if(subnet->owner == source) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Packet looping back to %s (%s)!", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Packet looping back to %s (%s)!", source->name, source->hostname); return; } @@ -575,7 +575,7 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) { via = (subnet->owner->via == myself) ? subnet->owner->nexthop : subnet->owner->via; if(via == source) { - ifdebug(TRAFFIC) logger(LOG_ERR, "Routing loop for packet from %s (%s)!", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_ERR, "Routing loop for packet from %s (%s)!", source->name, source->hostname); return; } @@ -583,7 +583,7 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) { return route_ipv6_unreachable(source, packet, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN); 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); + logger(DEBUG_TRAFFIC, 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); route_ipv6_unreachable(source, packet, ICMP6_PACKET_TOO_BIG, 0); return; @@ -617,7 +617,7 @@ static void route_neighborsol(node_t *source, vpn_packet_t *packet) { has_opt = packet->len >= ether_size + ip6_size + ns_size + opt_size + ETH_ALEN; if(source != myself) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Got neighbor solicitation request from %s (%s) while in router mode!", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Got neighbor solicitation request from %s (%s) while in router mode!", source->name, source->hostname); return; } @@ -637,7 +637,7 @@ static void route_neighborsol(node_t *source, vpn_packet_t *packet) { if(ns.nd_ns_hdr.icmp6_type != ND_NEIGHBOR_SOLICIT || (has_opt && opt.nd_opt_type != ND_OPT_SOURCE_LINKADDR)) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet: received unknown type neighbor solicitation request"); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet: received unknown type neighbor solicitation request"); return; } @@ -661,7 +661,7 @@ static void route_neighborsol(node_t *source, vpn_packet_t *packet) { } if(checksum) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet: checksum error for neighbor solicitation request"); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet: checksum error for neighbor solicitation request"); return; } @@ -670,7 +670,7 @@ static void route_neighborsol(node_t *source, vpn_packet_t *packet) { subnet = lookup_subnet_ipv6((ipv6_t *) &ns.nd_ns_target); if(!subnet) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet: neighbor solicitation request for unknown address %hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx", + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet: neighbor solicitation request for unknown address %hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx", ntohs(((uint16_t *) &ns.nd_ns_target)[0]), ntohs(((uint16_t *) &ns.nd_ns_target)[1]), ntohs(((uint16_t *) &ns.nd_ns_target)[2]), @@ -761,7 +761,7 @@ static void route_arp(node_t *source, vpn_packet_t *packet) { return; if(source != myself) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Got ARP request from %s (%s) while in router mode!", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Got ARP request from %s (%s) while in router mode!", source->name, source->hostname); return; } @@ -778,7 +778,7 @@ static void route_arp(node_t *source, vpn_packet_t *packet) { if(ntohs(arp.arp_hrd) != ARPHRD_ETHER || ntohs(arp.arp_pro) != ETH_P_IP || arp.arp_hln != ETH_ALEN || arp.arp_pln != sizeof addr || ntohs(arp.arp_op) != ARPOP_REQUEST) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet: received unknown type ARP request"); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet: received unknown type ARP request"); return; } @@ -787,7 +787,7 @@ static void route_arp(node_t *source, vpn_packet_t *packet) { subnet = lookup_subnet_ipv4((ipv4_t *) &arp.arp_tpa); if(!subnet) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet: ARP request for unknown address %d.%d.%d.%d", + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet: ARP request for unknown address %d.%d.%d.%d", arp.arp_tpa[0], arp.arp_tpa[1], arp.arp_tpa[2], arp.arp_tpa[3]); return; @@ -840,7 +840,7 @@ static void route_mac(node_t *source, vpn_packet_t *packet) { } if(subnet->owner == source) { - ifdebug(TRAFFIC) logger(LOG_WARNING, "Packet looping back to %s (%s)!", source->name, source->hostname); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Packet looping back to %s (%s)!", source->name, source->hostname); return; } @@ -855,7 +855,7 @@ static void route_mac(node_t *source, vpn_packet_t *packet) { return; if(via && packet->len > via->mtu && 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); + logger(DEBUG_TRAFFIC, LOG_INFO, "Packet for %s (%s) length %d larger than MTU %d", subnet->owner->name, subnet->owner->hostname, packet->len, via->mtu); uint16_t type = packet->data[12] << 8 | packet->data[13]; if(type == ETH_P_IP && packet->len > 590) { if(packet->data[20] & 0x40) { @@ -883,10 +883,14 @@ static void send_pcap(vpn_packet_t *packet) { connection_t *c = node->data; if(!c->status.pcap) continue; - else - pcap = true; - if(send_request(c, "%d %d %d", CONTROL, REQ_PCAP, packet->len)) - send_meta(c, (char *)packet->data, packet->len); + + pcap = true; + int len = packet->len; + if(c->outmaclength && c->outmaclength < len) + len = c->outmaclength; + + if(send_request(c, "%d %d %d", CONTROL, REQ_PCAP, len)) + send_meta(c, (char *)packet->data, len); } } @@ -971,7 +975,7 @@ void route(node_t *source, vpn_packet_t *packet) { break; default: - ifdebug(TRAFFIC) logger(LOG_WARNING, "Cannot route packet from %s (%s): unknown type %hx", source->name, source->hostname, type); + logger(DEBUG_TRAFFIC, LOG_WARNING, "Cannot route packet from %s (%s): unknown type %hx", source->name, source->hostname, type); break; } }