/*
protocol_key.c -- handle the meta-protocol, key exchange
- Copyright (C) 1999-2005 Ivo Timmermans,
- 2000-2013 Guus Sliepen <guus@tinc-vpn.org>
+ 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
/* Tell the others */
- if(!tunnelserver)
- forward_request(c, request);
+ forward_request(c, request);
return true;
}
/* No, just send our key back */
send_ans_key(from);
} else {
- if(tunnelserver)
- return true;
-
if(!to->status.reachable) {
logger(DEBUG_PROTOCOL, LOG_WARNING, "Got %s from %s (%s) destination %s which is not reachable",
"REQ_KEY", c->name, c->hostname, to_name);
/* Forward it if necessary */
if(to != myself) {
- if(tunnelserver)
- return true;
-
if(!to->status.reachable) {
logger(DEBUG_ALWAYS, LOG_WARNING, "Got %s from %s (%s) destination %s which is not reachable",
"ANS_KEY", c->name, c->hostname, to_name);
update_node_udp(from, &sa);
}
- if(from->options & OPTION_PMTU_DISCOVERY)
+ if(from->options & OPTION_PMTU_DISCOVERY && !(from->options & OPTION_TCPONLY))
send_mtu_probe(from);
}
/* Check and lookup cipher and digest algorithms */
- if(!(from->outcipher = cipher_open_by_nid(cipher))) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown cipher!", from->name, from->hostname);
- return false;
+ if(cipher) {
+ if(!(from->outcipher = cipher_open_by_nid(cipher))) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown cipher!", from->name, from->hostname);
+ return false;
+ }
+ } else {
+ from->outcipher = NULL;
}
- if(!(from->outdigest = digest_open_by_nid(digest, maclength))) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown digest!", from->name, from->hostname);
- return false;
+ if(digest) {
+ if(!(from->outdigest = digest_open_by_nid(digest, maclength))) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown digest!", from->name, from->hostname);
+ return false;
+ }
+ } else {
+ from->outdigest = NULL;
}
if(maclength != digest_length(from->outdigest)) {
update_node_udp(from, &sa);
}
- if(from->options & OPTION_PMTU_DISCOVERY)
+ if(from->options & OPTION_PMTU_DISCOVERY && !(from->options & OPTION_TCPONLY))
send_mtu_probe(from);
return true;