/*
net_socket.c -- Handle various kinds of sockets.
- Copyright (C) 1998-2005 Ivo Timmermans <ivo@tinc-vpn.org>,
- 2000-2005 Guus Sliepen <guus@tinc-vpn.org>
+ Copyright (C) 1998-2005 Ivo Timmermans,
+ 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
int addressfamily = AF_UNSPEC;
int maxtimeout = 900;
int seconds_till_retry = 5;
-bool blockingtcp = false;
listen_socket_t listen_socket[MAXSOCKETS];
int listen_sockets;
+list_t *outgoing_list = NULL;
/* Setup sockets */
int option;
#ifdef O_NONBLOCK
- if(!blockingtcp) {
- int flags = fcntl(c->socket, F_GETFL);
+ int flags = fcntl(c->socket, F_GETFL);
- if(fcntl(c->socket, F_SETFL, flags | O_NONBLOCK) < 0) {
- logger(LOG_ERR, _("fcntl for %s: %s"), c->hostname, strerror(errno));
- }
+ if(fcntl(c->socket, F_SETFL, flags | O_NONBLOCK) < 0) {
+ logger(LOG_ERR, _("fcntl for %s: %s"), c->hostname, strerror(errno));
+ }
+#elif defined(WIN32)
+ unsigned long arg = 1;
+
+ if(ioctlsocket(c->socket, FIONBIO, &arg) != 0) {
+ logger(LOG_ERR, _("ioctlsocket for %s: WSA error %d"), c->hostname, WSAGetLastError());
}
#endif
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)
return -1;
}
}
+#elif defined(WIN32)
+ {
+ unsigned long arg = 1;
+ if(ioctlsocket(nfd, FIONBIO, &arg) != 0) {
+ closesocket(nfd);
+ logger(LOG_ERR, _("Call to `%s' failed: WSA error %d"), "ioctlsocket",
+ WSAGetLastError());
+ return -1;
+ }
+ }
#endif
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));
}
void finish_connecting(connection_t *c)
{
- int option;
-
cp();
ifdebug(CONNECTIONS) logger(LOG_INFO, _("Connected to %s (%s)"), c->name, c->hostname);
void do_outgoing_connection(connection_t *c)
{
char *address, *port;
- int option, result, flags;
+ int result;
cp();
}
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);
result = connect(c->socket, &c->address.sa, SALEN(c->address.sa));
if(result == -1) {
- if(errno == EINPROGRESS) {
+ if(errno == EINPROGRESS
+#if defined(WIN32) && !defined(O_NONBLOCK)
+ || WSAGetLastError() == WSAEWOULDBLOCK
+#endif
+ ) {
c->status.connecting = true;
return;
}
if(!outgoing->cfg) {
logger(LOG_ERR, _("No address specified for %s"), c->name);
free_connection(c);
- free(outgoing->name);
- free(outgoing);
return;
}
*/
bool handle_new_meta_connection(int sock)
{
- int option;
connection_t *c;
sockaddr_t sa;
- int fd, len = sizeof(sa);
+ int fd;
+ socklen_t len = sizeof(sa);
cp();
sockaddrunmap(&sa);
c = new_connection();
- c->name = NULL;
+ c->name = xstrdup("<unknown>");
c->outcipher = myself->connection->outcipher;
c->outdigest = myself->connection->outdigest;
c->outmaclength = myself->connection->outmaclength;
return true;
}
+void free_outgoing(outgoing_t *outgoing) {
+ if(outgoing->ai)
+ freeaddrinfo(outgoing->ai);
+
+ if(outgoing->name)
+ free(outgoing->name);
+
+ free(outgoing);
+}
+
void try_outgoing_connections(void)
{
static config_t *cfg = NULL;
char *name;
outgoing_t *outgoing;
-
+ connection_t *c;
+ avl_node_t *node;
+
cp();
+ if(outgoing_list) {
+ for(node = connection_tree->head; node; node = node->next) {
+ c = node->data;
+ c->outgoing = NULL;
+ }
+
+ list_delete_list(outgoing_list);
+ }
+
+ outgoing_list = list_alloc((list_action_t)free_outgoing);
+
for(cfg = lookup_config(config_tree, "ConnectTo"); cfg; cfg = lookup_config_next(config_tree, cfg)) {
get_config_string(cfg, &name);
outgoing = xmalloc_and_zero(sizeof(*outgoing));
outgoing->name = name;
+ list_insert_tail(outgoing_list, outgoing);
setup_outgoing_connection(outgoing);
}
}