/*
route.c -- routing
- Copyright (C) 2000-2005 Ivo Timmermans,
- 2000-2013 Guus Sliepen <guus@meshlink.io>
+ Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
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
#include "net.h"
#include "route.h"
#include "utils.h"
+#include "libmeshlink.h"
-rmode_t routing_mode = RMODE_ROUTER;
fmode_t forwarding_mode = FMODE_INTERNAL;
bmode_t broadcast_mode = BMODE_MST;
bool decrement_ttl = false;
bool directonly = false;
bool priorityinheritance = false;
int macexpire = 600;
-bool overwrite_mac = false;
mac_t mymac = {{0xFE, 0xFD, 0, 0, 0, 0}};
bool pcap = false;
return true;
}
-void route(node_t *source, vpn_packet_t *packet) {
- // TODO: route on name or key
+void route(node_t *source,vpn_packet_t *packet) {
+ // TODO: route on name or key
+
+ node_t* owner = NULL;
+ node_t* via = NULL;
+ tincpackethdr* hdr = (tincpackethdr*)packet->data;
+ owner = lookup_node(hdr->destination);
+ logger(DEBUG_TRAFFIC, LOG_WARNING, "Routing packet from: %s . To: %s \n",hdr->source,hdr->destination);
+
+ //Check Lenght
+ if(!checklength(source, packet, (sizeof(tincpackethdr))))
+ return;
+
+ if (owner == NULL) {
+ //Lookup failed
+ logger(DEBUG_TRAFFIC, LOG_WARNING, "Cant lookup the owner of a packet in the route() function. This should never happen \n");
+ logger(DEBUG_TRAFFIC, LOG_WARNING, "Destination was: %s \n",hdr->destination);
+ return;
+ }
+
+ if (owner == myself ) {
+ //TODO: implement sending received data from meshlink library to the application
+ logger(DEBUG_TRAFFIC, LOG_WARNING, "I received a packet for me with payload: %s \n", packet->data + 46);
+ (recv_callback)(packet->data + 46);
+ return;
+ }
+
+ if(!owner->status.reachable) {
+ //TODO: check what to do here, not just print a warning
+ logger(DEBUG_TRAFFIC, LOG_WARNING, "The owner of a packet in the route() function is unreachable. Dropping packet. \n");
+ return;
+ }
+
+ via = (owner->via == myself) ? owner->nexthop : owner->via;
+ if(via == source) {
+ logger(DEBUG_TRAFFIC, LOG_ERR, "Routing loop for packet from %s (%s)!", source->name, source->hostname);
+ return;
+ }
+
+ if (directonly && owner!=via) {
+ logger(DEBUG_TRAFFIC, LOG_WARNING, "Direct Only is requested. Dropping packet because direct connection not available \n");
+ return;
+ }
+
+ send_packet(owner,packet);
+ return;
}