X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Froute.c;h=de81c2b68ea5de8f398114fb80c2482317a4eb39;hb=bd8eb9b38758f16f8f0207dcd5b743bfacb535cb;hp=cffb7d25ab491cf6c31590e6570a826de75afc1c;hpb=22f930e7c6352a1b43b1605799925e10fced254a;p=meshlink diff --git a/src/route.c b/src/route.c index cffb7d25..de81c2b6 100644 --- a/src/route.c +++ b/src/route.c @@ -20,89 +20,64 @@ #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); + logger(DEBUG_TRAFFIC, LOG_WARNING, + "Got too short packet from %s (%s)", source->name, + source->hostname); return false; } 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; +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(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 == 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 == mesh->self) { + logger(DEBUG_TRAFFIC, LOG_WARNING, "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 == 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; + } - 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 == 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; + } - 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); + send_packet(mesh, owner, packet); 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; }