[ Upstream commit
5c29fb12e8fb8a8105ea048cb160fd79a85a52bb ]
Because of commit
218774dc341f219bfcf940304a081b121a0e8099 ("ipv6: add
anti-spoofing checks for 6to4 and 6rd") the sit driver dropped packets
for 2002::/16 destinations and sources even when configured to work as a
tunnel with fixed endpoint. We may only apply the 6rd/6to4 anti-spoofing
checks if the device is not in pointopoint mode.
This was an oversight from me in the above commit, sorry. Thanks to
Roman Mamedov for reporting this!
Reported-by: Roman Mamedov <rm@romanrm.ru>
Cc: David Miller <davem@davemloft.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tunnel->dev->stats.rx_errors++;
goto out;
}
- } else {
+ } else if (!(tunnel->dev->flags&IFF_POINTOPOINT)) {
if (is_spoofed_6rd(tunnel, iph->saddr,
&ipv6_hdr(skb)->saddr) ||
is_spoofed_6rd(tunnel, iph->daddr,