/*
net_socket.c -- Handle various kinds of sockets.
Copyright (C) 1998-2005 Ivo Timmermans,
- 2000-2007 Guus Sliepen <guus@tinc-vpn.org>
+ 2000-2008 Guus Sliepen <guus@tinc-vpn.org>
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
option = 1;
setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, &option, sizeof(option));
+#if defined(SOL_IPV6) && defined(IPV6_V6ONLY)
+ if(sa->sa.sa_family == AF_INET6)
+ setsockopt(nfd, SOL_IPV6, IPV6_V6ONLY, &option, sizeof option);
+#endif
+
if(get_config_string
(lookup_config(config_tree, "BindToInterface"), &iface)) {
#if defined(SOL_SOCKET) && defined(SO_BINDTODEVICE)
option = 1;
setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, &option, sizeof(option));
+#if defined(SOL_IPV6) && defined(IPV6_V6ONLY)
+ if(sa->sa.sa_family == AF_INET6)
+ setsockopt(nfd, SOL_IPV6, IPV6_V6ONLY, &option, sizeof option);
+#endif
+
#if defined(SOL_IP) && defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO)
{
bool choice;
- if(get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) && choice) {
+ if(!get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) || choice) {
option = IP_PMTUDISC_DO;
setsockopt(nfd, SOL_IP, IP_MTU_DISCOVER, &option, sizeof(option));
}
{
bool choice;
- if(get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) && choice) {
+ if(!get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) || choice) {
option = IPV6_PMTUDISC_DO;
setsockopt(nfd, SOL_IPV6, IPV6_MTU_DISCOVER, &option, sizeof(option));
}
}
if(!c->outgoing->aip) {
- freeaddrinfo(c->outgoing->ai);
+ if(c->outgoing->ai)
+ freeaddrinfo(c->outgoing->ai);
c->outgoing->ai = NULL;
goto begin;
}
goto begin;
}
+#if defined(SOL_IPV6) && defined(IPV6_V6ONLY)
+ int option = 1;
+ if(c->address.sa.sa_family == AF_INET6)
+ setsockopt(c->socket, SOL_IPV6, IPV6_V6ONLY, &option, sizeof option);
+#endif
+
/* Optimize TCP settings */
configure_tcp(c);