X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;ds=sidebyside;f=src%2Froute.c;h=d38b08e4be89fb49979bf2e6b20a478776fce302;hb=fb7b6e7a0c966a88a682f656ca1caeb9a0583c5b;hp=a958e1a78c9b96a1df48867e7469c2d374451afe;hpb=c46e84837d1c84a8590e0e3507227670368884a7;p=meshlink

diff --git a/src/route.c b/src/route.c
index a958e1a7..f09a1041 100644
--- a/src/route.c
+++ b/src/route.c
@@ -1,7 +1,6 @@
 /*
     route.c -- routing
-    Copyright (C) 2000 Ivo Timmermans <itimmermans@bigfoot.com>,
-                  2000 Guus Sliepen <guus@sliepen.warande.net>
+    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
@@ -13,76 +12,79 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    $Id: route.c,v 1.1.2.1 2000/10/23 13:52:54 guus Exp $
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include "config.h"
-
-#include <utils.h>
-#include <xalloc.h>
+#include "system.h"
 
+#include "logger.h"
 #include "net.h"
-#include "connlist.h"
+#include "route.h"
+#include "utils.h"
+#include "libmeshlink.h"
 
-#include "system.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;
 
-int routing_mode = 0;	/* Will be used to determine if we route by MAC or by payload's protocol */
+static bool ratelimit(int frequency) {
+	static time_t lasttime = 0;
+	static int count = 0;
 
-conn_list_t *route_packet(vpn_packet_t *packet)
-{
-  unsigned short type;
-cp
-  type = ntohs(*((unsigned short*)(&packet.data[12])))
+	if(lasttime == now.tv_sec) {
+		if(count >= frequency)
+			return true;
+	} else {
+		lasttime = now.tv_sec;
+		count = 0;
+	}
 
-  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:
-        /* TODO: try MAC as last resort? */
-        if(debug_lvl >= DEBUG_TRAFFIC)
-          {
-            syslog(LOG_WARNING, _("Cannot route packet: unknown type %hx"), type);
-          }
-            return NULL;
-     }
+	count++;
+	return false;
 }
 
-conn_list_t *route_ipv4(vpn_packet_t *packet)
-{
-  ipv4_t dest;
-  conn_list_t *cl;
-cp
-  dest = ntohl(*((unsigned long*)(&packet.data[30]);
-  
-  cl = lookup_conn_list_ipv4(dest);
-  if(!cl)
-    if(debug_lvl >= DEBUG_TRAFFIC)
-      {
-        syslog(LOG_WARNING, _("Cannot route packet: unknown destination address %d.%d.%d.%d"),
-               packet.data[30], packet.data[31], packet.data[32], packet.data[33]);
-      } 
-  
-  return cl;  
-cp
+static bool checklength(node_t *source, vpn_packet_t *packet, length_t length) {
+	if(packet->len < length) {
+		logger(DEBUG_TRAFFIC, LOG_WARNING, "Got too short packet from %s (%s)", source->name, source->hostname);
+		return false;
+	} else
+		return true;
 }
 
-conn_list_t *route_ipv6(vpn_packet_t *packet)
-{
-cp
-  syslog(LOG_WARNING, _("Cannot route packet: IPv6 routing not implemented yet"));
-  return NULL;
-cp
+void route(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);
+    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");
+    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);
+    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;
+    }
+
+    //TODO: I skipped here a lot of checks !
+
+    send_packet(owner,packet);
+    return;
 }