/*
net_socket.c -- Handle various kinds of sockets.
Copyright (C) 1998-2005 Ivo Timmermans,
- 2000-2013 Guus Sliepen <guus@tinc-vpn.org>
+ 2000-2014 Guus Sliepen <guus@tinc-vpn.org>
2006 Scott Lamb <slamb@slamb.org>
2009 Florian Forster <octo@verplant.org>
#endif
int addressfamily = AF_UNSPEC;
+int mintimeout = 0;
int maxtimeout = 900;
int seconds_till_retry = 5;
int udp_rcvbuf = 0;
option = IPTOS_LOWDELAY;
setsockopt(c->socket, SOL_IP, IP_TOS, (void *)&option, sizeof(option));
#endif
+
+#if defined(IPPROTO_IPV6) && defined(IPV6_TCLASS) && defined(IPTOS_LOWDELAY)
+ option = IPTOS_LOWDELAY;
+ setsockopt(c->socket, IPPROTO_IPV6, IPV6_TCLASS, (void *)&option, sizeof(option));
+#endif
}
static bool bind_to_interface(int sd) {
int status;
#endif /* defined(SOL_SOCKET) && defined(SO_BINDTODEVICE) */
- if(!get_config_string (lookup_config (config_tree, "BindToInterface"), &iface))
+ if(!get_config_string(lookup_config (config_tree, "BindToInterface"), &iface))
return true;
#if defined(SOL_SOCKET) && defined(SO_BINDTODEVICE)
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ);
ifr.ifr_ifrn.ifrn_name[IFNAMSIZ - 1] = 0;
+ free(iface);
status = setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, (void *)&ifr, sizeof(ifr));
if(status) {
- logger(LOG_ERR, "Can't bind to interface %s: %s", iface,
- strerror(errno));
+ logger(LOG_ERR, "Can't bind to interface %s: %s", ifr.ifr_ifrn.ifrn_name, strerror(errno));
return false;
}
+
#else /* if !defined(SOL_SOCKET) || !defined(SO_BINDTODEVICE) */
logger(LOG_WARNING, "%s not supported on this platform", "BindToInterface");
#endif
setsockopt(nfd, SOL_IPV6, IPV6_V6ONLY, (void *)&option, sizeof option);
#endif
- if(get_config_string
- (lookup_config(config_tree, "BindToInterface"), &iface)) {
+ if(get_config_string(lookup_config(config_tree, "BindToInterface"), &iface)) {
#if defined(SOL_SOCKET) && defined(SO_BINDTODEVICE)
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ);
+ ifr.ifr_ifrn.ifrn_name[IFNAMSIZ - 1] = 0;
+ free(iface);
if(setsockopt(nfd, SOL_SOCKET, SO_BINDTODEVICE, (void *)&ifr, sizeof(ifr))) {
closesocket(nfd);
- logger(LOG_ERR, "Can't bind to interface %s: %s", iface,
- strerror(sockerrno));
+ logger(LOG_ERR, "Can't bind to interface %s: %s", ifr.ifr_ifrn.ifrn_name, strerror(sockerrno));
return -1;
}
+
#else
logger(LOG_WARNING, "%s not supported on this platform", "BindToInterface");
#endif
option = 1;
setsockopt(nfd, IPPROTO_IP, IP_DONTFRAGMENT, (void *)&option, sizeof(option));
}
-#else
-#warning No way to disable IPv4 fragmentation
#endif
#if defined(SOL_IPV6) && defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO)
option = 1;
setsockopt(nfd, IPPROTO_IPV6, IPV6_DONTFRAG, (void *)&option, sizeof(option));
}
-#else
-#warning No way to disable IPv6 fragmentation
#endif
if (!bind_to_interface(nfd)) {
void retry_outgoing(outgoing_t *outgoing) {
outgoing->timeout += 5;
+ if(outgoing->timeout < mintimeout)
+ outgoing->timeout = mintimeout;
+
if(outgoing->timeout > maxtimeout)
outgoing->timeout = maxtimeout;
if(!proxytype) {
c->socket = socket(c->address.sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
- configure_tcp(c);
} else if(proxytype == PROXY_EXEC) {
do_outgoing_pipe(c, proxyhost);
} else {
goto begin;
ifdebug(CONNECTIONS) logger(LOG_INFO, "Using proxy at %s port %s", proxyhost, proxyport);
c->socket = socket(proxyai->ai_family, SOCK_STREAM, IPPROTO_TCP);
- configure_tcp(c);
}
if(c->socket == -1) {
goto begin;
}
+ if(proxytype != PROXY_EXEC)
+ configure_tcp(c);
+
#ifdef FD_CLOEXEC
fcntl(c->socket, F_SETFD, FD_CLOEXEC);
#endif