}
static void receive_udppacket(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *inpkt) {
+ if(!n->status.reachable) {
+ logger(mesh, MESHLINK_ERROR, "Got SPTPS data from unreachable node %s", n->name);
+ return;
+ }
+
if(!n->sptps.state) {
if(!n->status.waitingforkey) {
logger(mesh, MESHLINK_DEBUG, "Got packet from %s but we haven't exchanged keys yet", n->name);
}
static void send_sptps_packet(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *origpkt) {
+ if(!n->status.reachable) {
+ logger(mesh, MESHLINK_ERROR, "Trying to send SPTPS data to unreachable node %s", n->name);
+ return;
+ }
+
if(!n->status.validkey) {
logger(mesh, MESHLINK_INFO, "No valid key known yet for %s", n->name);
/* Otherwise, address are found in edges to this node.
So we pick a random edge and a random socket. */
- int i = 0;
- int j = prng(mesh, n->edge_tree->count);
edge_t *candidate = NULL;
- for splay_each(edge_t, e, n->edge_tree) {
- if(i++ == j) {
- candidate = e->reverse;
- break;
+ {
+ int i = 0;
+ int j = prng(mesh, n->edge_tree->count);
+
+ for splay_each(edge_t, e, n->edge_tree) {
+ if(i++ == j) {
+ candidate = e->reverse;
+ break;
+ }
}
}
}
check_socket:
+
/* Make sure we have a suitable socket for the chosen address */
if(mesh->listen_socket[*sock].sa.sa.sa_family != (*sa)->sa.sa_family) {
for(int i = 0; i < mesh->listen_sockets; i++) {
node_t *to = handle;
meshlink_handle_t *mesh = to->mesh;
+ if(!to->status.reachable) {
+ logger(mesh, MESHLINK_ERROR, "Trying to send SPTPS data to unreachable node %s", to->name);
+ return false;
+ }
+
/* Send it via TCP if it is a handshake packet, TCPOnly is in use, or this packet is larger than the MTU. */
if(type >= SPTPS_HANDSHAKE || (type != PKT_PROBE && (len - 21) > to->minmtu)) {