Copyright (C) 1998-2005 Ivo Timmermans,
2000-2010 Guus Sliepen <guus@tinc-vpn.org>
2010 Timothy Redaelli <timothy@redaelli.eu>
+ 2010 Brandon Black <blblack@gmail.com>
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
}
if(n->mtuprobes > 32) {
+ if(!n->minmtu) {
+ n->mtuprobes = 31;
+ timeout = pinginterval;
+ goto end;
+ }
+
ifdebug(TRAFFIC) logger(LOG_INFO, "%s (%s) did not respond to UDP ping, restarting PMTU discovery", n->name, n->hostname);
n->mtuprobes = 1;
n->minmtu = 0;
n->maxmtu = MTU;
}
- if(n->mtuprobes >= 10 && !n->minmtu) {
+ if(n->mtuprobes >= 10 && n->mtuprobes < 32 && !n->minmtu) {
ifdebug(TRAFFIC) logger(LOG_INFO, "No response to MTU probes from %s (%s)", n->name, n->hostname);
- n->mtuprobes = 0;
- return;
+ n->mtuprobes = 31;
}
if(n->mtuprobes == 30 || (n->mtuprobes < 30 && n->minmtu >= n->maxmtu)) {
packet->data[0] = 1;
send_udppacket(n, packet);
} else {
+ if(n->mtuprobes > 30) {
+ if(n->minmtu)
+ n->mtuprobes = 30;
+ else
+ n->mtuprobes = 1;
+ }
+
if(len > n->maxmtu)
len = n->maxmtu;
if(n->minmtu < len)
n->minmtu = len;
- if(n->mtuprobes > 30)
- n->mtuprobes = 30;
}
}
avl_node_t *node;
edge_t *e;
node_t *n = NULL;
+ bool hard = false;
static time_t last_hard_try = 0;
for(node = edge_weight_tree->head; node; node = node->next) {
e = node->data;
+ if(e->to == myself)
+ continue;
+
if(sockaddrcmp_noport(from, &e->address)) {
if(last_hard_try == now)
continue;
- last_hard_try = now;
+ hard = true;
}
- if(!n)
- n = e->to;
-
if(!try_mac(e->to, pkt))
continue;
break;
}
+ if(hard)
+ last_hard_try = now;
+
return n;
}