-connection_t *route_ipv6(vpn_packet_t *packet)
-{
-cp
- if(debug_lvl > DEBUG_NOTHING)
- {
- syslog(LOG_WARNING, _("Cannot route packet: IPv6 routing not implemented yet"));
- }
-cp
- return NULL;
-}
-
-connection_t *route_packet(connection_t *source, vpn_packet_t *packet)
-{
- unsigned short int type;
-cp
- /* FIXME: multicast? */
-
- switch(routing_mode)
- {
- case RMODE_HUB:
- return broadcast;
-
- case RMODE_SWITCH:
- return route_mac(source, packet);
-
- case RMODE_ROUTER:
- type = ntohs(*((unsigned short*)(&packet->data[12])));
- switch(type)
- {
- case 0x0800:
- return route_ipv4(packet);
- case 0x86DD:
- return route_ipv6(packet);
- /*
- case 0x8137:
- return route_ipx(packet);
- case 0x0806:
- return route_arp(packet);
- */
- default:
- if(debug_lvl >= DEBUG_TRAFFIC)
- {
- syslog(LOG_WARNING, _("Cannot route packet: unknown type %hx"), type);
- }
- return NULL;
- }
- }
+void route(meshlink_handle_t *mesh, node_t *source, vpn_packet_t *packet) {
+ // TODO: route on name or key
+
+ node_t *owner = NULL;
+ node_t *via = NULL;
+ meshlink_packethdr_t *hdr = (meshlink_packethdr_t *) packet->data;
+ owner = lookup_node(mesh, (char *)hdr->destination);
+ logger(mesh, MESHLINK_DEBUG, "Routing packet from \"%s\" to \"%s\"\n", hdr->source, hdr->destination);
+
+ //Check Lenght
+ if(!checklength(source, packet, sizeof *hdr))
+ return;
+
+ if(owner == NULL) {
+ //Lookup failed
+ logger(mesh, MESHLINK_WARNING, "Cant lookup the owner of a packet in the route() function. This should never happen!\n");
+ logger(mesh, MESHLINK_WARNING, "Destination was: %s\n", hdr->destination);
+ return;
+ }
+
+ if(owner == mesh->self) {
+ logger(mesh, MESHLINK_DEBUG, "I received a packet for me with payload: %s \n", packet->data + sizeof *hdr);
+ if(mesh->receive_cb)
+ mesh->receive_cb(mesh, (meshlink_node_t *)source, packet->data + sizeof *hdr, packet->len - sizeof *hdr);
+ return;
+ }
+
+ if(!owner->status.reachable) {
+ //TODO: check what to do here, not just print a warning
+ logger(mesh, MESHLINK_WARNING, "The owner of a packet in the route() function is unreachable. Dropping packet.\n");
+ return;
+ }
+
+ via = (owner->via == mesh->self) ? owner->nexthop : owner->via;
+ if(via == source) {
+ logger(mesh, MESHLINK_ERROR, "Routing loop for packet from %s (%s)!", source->name, source->hostname);
+ return;
+ }
+
+ send_packet(mesh, owner, packet);
+ return;