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| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2013-06-27 22:46:04 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-01 13:26:18 -0700 |
| commit | 5c29fb12e8fb8a8105ea048cb160fd79a85a52bb (patch) | |
| tree | 0cd076a18e55598a819c9358a19865f78ed9d43e | |
| parent | e62bc9e55f75ecb41dac3e68cd4b61f9d9501f72 (diff) | |
| download | linux-5c29fb12e8fb8a8105ea048cb160fd79a85a52bb.tar.gz linux-5c29fb12e8fb8a8105ea048cb160fd79a85a52bb.tar.bz2 linux-5c29fb12e8fb8a8105ea048cb160fd79a85a52bb.zip | |
ipv6: only apply anti-spoofing checks to not-pointopoint tunnels
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>
| -rw-r--r-- | net/ipv6/sit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 97a0bfe2c293..85ff37b1ce02 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -593,7 +593,7 @@ static int ipip6_rcv(struct sk_buff *skb) 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, |