#include "system.h"
#include "logger.h"
+#include "meshlink_internal.h"
#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;
-mac_t mymac = {{0xFE, 0xFD, 0, 0, 0, 0}};
-bool pcap = false;
-static bool ratelimit(int frequency) {
- static time_t lasttime = 0;
- static int count = 0;
-
- if(lasttime == now.tv_sec) {
- if(count >= frequency)
- return true;
- } else {
- lasttime = now.tv_sec;
- count = 0;
- }
-
- count++;
- return false;
-}
-
-static bool checklength(node_t *source, vpn_packet_t *packet, length_t length) {
+static bool checklength(node_t *source, vpn_packet_t *packet, uint16_t length) {
if(packet->len < length) {
logger(DEBUG_TRAFFIC, LOG_WARNING, "Got too short packet from %s (%s)", source->name, source->hostname);
return false;
return true;
}
-void route(node_t *source,vpn_packet_t *packet) {
+void route(meshlink_handle_t *mesh, node_t *source, vpn_packet_t *packet) {
// TODO: route on name or key
node_t* owner = NULL;
- tincpackethdr* hdr = (tincpackethdr*)packet->data;
- owner = lookup_node(hdr->destination);
+ node_t* via = NULL;
+ meshlink_packethdr_t* hdr = (meshlink_packethdr_t*)packet->data;
+ owner = lookup_node(mesh, 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(meshlink_packethdr_t))))
+ 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 ) {
+ if (owner == mesh->self ) {
//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);
+ logger(DEBUG_TRAFFIC, LOG_WARNING, "I received a packet for me with payload: %s \n", packet->data + sizeof *hdr);
+ (meshlink_receive_cb_t)(packet->data + sizeof *hdr);
return;
}
return;
}
- //TODO: I skipped here a lot of checks !
+ via = (owner->via == mesh->self) ? owner->nexthop : owner->via;
+ if(via == source) {
+ logger(DEBUG_TRAFFIC, LOG_ERR, "Routing loop for packet from %s (%s)!", source->name, source->hostname);
+ return;
+ }
- send_packet(owner,packet);
+ send_packet(mesh, owner, packet);
return;
}