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Make sure IPv6 sockets are IPv6 only.
author
Guus Sliepen
<guus@tinc-vpn.org>
Thu, 11 Dec 2008 20:49:14 +0000
(20:49 +0000)
committer
Guus Sliepen
<guus@tinc-vpn.org>
Thu, 11 Dec 2008 20:49:14 +0000
(20:49 +0000)
src/net_socket.c
patch
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diff --git
a/src/net_socket.c
b/src/net_socket.c
index
44b7ec7
..
808e1c6
100644
(file)
--- a/
src/net_socket.c
+++ b/
src/net_socket.c
@@
-99,6
+99,11
@@
int setup_listen_socket(const sockaddr_t *sa) {
option = 1;
setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, &option, sizeof option);
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)
if(get_config_string
(lookup_config(config_tree, "BindToInterface"), &iface)) {
#if defined(SOL_SOCKET) && defined(SO_BINDTODEVICE)
@@
-177,6
+182,11
@@
int setup_vpn_in_socket(const sockaddr_t *sa) {
option = 1;
setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, &option, sizeof option);
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 defined(SOL_IP) && defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO)
{
bool choice;
@@
-320,6
+330,12
@@
begin:
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);
/* Optimize TCP settings */
configure_tcp(c);