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Only warn about non-tackled IPv6 packets once

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When using OpenVPN 2.2 on clients and server with Windows based
clients, it will try to push IPv6 packets through the tunnel.  This
causes the server log to be filled up with log entries like this:

 Wed Jun 29 22:12:51 2011 username/1.2.3.4:56990 Need IPv6 code in mroute_extract_addr_from_packet

This patch modifies this message to state that IPv6 packets are not
tackled in tun mode, and prints it only once.

Trac: 147
Signed-off-by: David Sommerseth <davids@redhat.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
This commit is contained in:
David Sommerseth 2011-12-13 18:08:24 +01:00
parent ed77e8ad8e
commit b7bbe47a7f
1 changed files with 6 additions and 1 deletions
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7
mroute.c
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@ -131,6 +131,8 @@ mroute_extract_addr_ipv4 (struct mroute_addr *src,
const struct buffer *buf)
{
unsigned int ret = 0;
static bool ipv6warned = false;
if (BLEN (buf) >= 1)
{
switch (OPENVPN_IPH_GET_VER (*BPTR(buf)))
@ -156,7 +158,10 @@ mroute_extract_addr_ipv4 (struct mroute_addr *src,
break;
case 6:
{
msg (M_WARN, "Need IPv6 code in mroute_extract_addr_from_packet");
if( !ipv6warned ) {
msg (M_WARN, "IPv6 in tun mode is not supported in OpenVPN 2.2");
ipv6warned = true;
}
break;
}
}