/*
route.c -- routing
- Copyright (C) 2000-2003 Ivo Timmermans <ivo@o2w.nl>,
- 2000-2003 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 2000-2005 Ivo Timmermans <ivo@tinc-vpn.org>,
+ 2000-2005 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: route.c,v 1.1.2.75 2003/12/24 10:48:15 guus Exp $
+ $Id$
*/
#include "system.h"
-#ifdef HAVE_NET_ETHERNET_H
-#include <net/ethernet.h>
-#endif
-#ifdef HAVE_NET_IF_ARP_H
-#include <net/if_arp.h>
-#endif
-#ifdef HAVE_NETINET_IP_ICMP_H
-#include <netinet/ip_icmp.h>
-#endif
-#ifdef HAVE_NETINET_ICMP6_H
-#include <netinet/icmp6.h>
-#endif
-#ifdef HAVE_NETINET_IF_ETHER_H
-#include <netinet/if_ether.h>
-#endif
-
#include "avl_tree.h"
#include "connection.h"
#include "ethernet.h"
/* RFC 1071 */
-static __inline__ uint16_t inet_checksum(void *data, int len, uint16_t prevsum)
+static uint16_t inet_checksum(void *data, int len, uint16_t prevsum)
{
uint16_t *p = data;
uint32_t checksum = prevsum ^ 0xFFFF;
return ~checksum;
}
-static __inline__ bool ratelimit(int frequency) {
+static bool ratelimit(int frequency) {
static time_t lasttime = 0;
static int count = 0;
return false;
}
-static __inline__ bool checklength(node_t *source, vpn_packet_t *packet, length_t length) {
+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);
return false;
return true;
}
-static __inline__ void learn_mac(mac_t *address)
+static void learn_mac(mac_t *address)
{
subnet_t *subnet;
avl_node_t *node;
}
}
-static __inline__ void route_mac(node_t *source, vpn_packet_t *packet)
+static void route_mac(node_t *source, vpn_packet_t *packet)
{
subnet_t *subnet;
/* RFC 791 */
-static __inline__ void fragment_ipv4_packet(node_t *dest, vpn_packet_t *packet) {
+static void fragment_ipv4_packet(node_t *dest, vpn_packet_t *packet) {
struct ip ip;
vpn_packet_t fragment;
int len, maxlen, todo;
}
}
-static __inline__ void route_ipv4_unicast(node_t *source, vpn_packet_t *packet)
+static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet)
{
subnet_t *subnet;
node_t *via;
via = (subnet->owner->via == myself) ? subnet->owner->nexthop : subnet->owner->via;
- if(packet->len > via->mtu && via != myself) {
+ 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);
if(packet->data[20] & 0x40) {
packet->len = via->mtu;
send_packet(subnet->owner, packet);
}
-static __inline__ void route_ipv4(node_t *source, vpn_packet_t *packet)
+static void route_ipv4(node_t *source, vpn_packet_t *packet)
{
cp();
send_packet(source, packet);
}
-static __inline__ void route_ipv6_unicast(node_t *source, vpn_packet_t *packet)
+static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet)
{
subnet_t *subnet;
node_t *via;
via = (subnet->owner->via == myself) ? subnet->owner->nexthop : subnet->owner->via;
- if(packet->len > via->mtu && via != myself) {
+ 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);
packet->len = via->mtu;
route_ipv6_unreachable(source, packet, ICMP6_PACKET_TOO_BIG, 0);
send_packet(source, packet);
}
-static __inline__ void route_ipv6(node_t *source, vpn_packet_t *packet)
+static void route_ipv6(node_t *source, vpn_packet_t *packet)
{
cp();