#include "system.h"
#include "logger.h"
+#include "meshlink_internal.h"
#include "net.h"
#include "route.h"
#include "utils.h"
-#include "libmeshlink.h"
bool decrement_ttl = 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);
+ logger(source->mesh, MESHLINK_WARNING, "Got too short packet from %s", source->name);
return false;
- } else
+ } else {
return true;
+ }
}
-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;
- }
+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;
+ }
- send_packet(owner,packet);
- return;
+ if(owner == mesh->self) {
+ const void *payload = packet->data + sizeof(*hdr);
+ size_t len = packet->len - sizeof(*hdr);
+
+ char hex[len * 2 + 1];
+
+ if(mesh->log_level >= MESHLINK_DEBUG) {
+ bin2hex(payload, hex, len); // don't do this unless it's going to be logged
+ }
+
+ logger(mesh, MESHLINK_DEBUG, "I received a packet for me with payload: %s\n", hex);
+
+ if(mesh->receive_cb) {
+ mesh->receive_cb(mesh, (meshlink_node_t *)source, payload, len);
+ }
+
+ 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!", source->name);
+ return;
+ }
+
+ send_packet(mesh, owner, packet);
+ return;
}