When a linux tun interface is closed (e.g. on disconnect)
an optional ipv6 addr that was previously set is deleted now.
Without this patch a later reconnect would fail with
'Linux ip -6 addr add failed: external program exited with error status: 2'
and openvpn would exit.
---
src/openvpn/tun.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
old mode 100644
new mode 100755
index ba4b15e..8a2bccc
--- a/src/openvpn/tun.c
+++ b/src/openvpn/tun.c
@@ -1687,6 +1687,32 @@ close_tun (struct tuntap *tt)
argv_msg (M_INFO, &argv);
openvpn_execve_check (&argv, NULL, 0, "Linux ip addr del failed");
+ if (tt->ipv6 && tt->did_ifconfig_ipv6_setup)
+ {
+ const char * ifconfig_ipv6_local = print_in6_addr
(tt->local_ipv6, 0, &gc);
+
+#ifdef ENABLE_IPROUTE
+ argv_printf (&argv, "%s -6 addr del %s/%d dev %s",
+ iproute_path,
+ ifconfig_ipv6_local,
+ tt->netbits_ipv6,
+ tt->actual_name
+ );
+ argv_msg (M_INFO, &argv);
+ openvpn_execve_check (&argv, NULL, 0, "Linux ip -6 addr del
failed");
+#else
+ argv_printf (&argv,
+ "%s %s del %s/%d",
+ IFCONFIG_PATH,
+ tt->actual_name,
+ ifconfig_ipv6_local,
+ tt->netbits_ipv6
+ );
+ argv_msg (M_INFO, &argv);
+ openvpn_execve_check (&argv, NULL, 0, "Linux ifconfig inet6
del failed");
+#endif
+ }
+
argv_reset (&argv);
gc_free (&gc);
}
--
tg: (b8ae847..) c/0007/del_ipv6_on_close (depends on:
c/0006/override_common_name)
