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authorColin <colins@sjtu.edu.cn>2008-05-26 12:04:43 -0400
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-06-04 15:02:32 -0400
commit82836372311a5cbf9cc5f4f47f9b56cb9edfe90d (patch)
tree214a64dbce626d2a95893d1cd75d8ab27b6a8601 /net
parent24ef0da7b864435f221f668bc8a324160d063e78 (diff)
[IPV6] TUNNEL6: Fix incoming packet length check for inter-protocol tunnel.
I discover a strange behavior in [ipv4 in ipv6] tunnel. When IPv6 tunnel payload is less than 40(0x28), packet can be sent to network, received in physical interface, but not seen in IP tunnel interface. No counter increase in tunnel interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/tunnel6.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index 6323921b40be..669f280989c3 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -109,7 +109,7 @@ static int tunnel46_rcv(struct sk_buff *skb)
109{ 109{
110 struct xfrm6_tunnel *handler; 110 struct xfrm6_tunnel *handler;
111 111
112 if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) 112 if (!pskb_may_pull(skb, sizeof(struct iphdr)))
113 goto drop; 113 goto drop;
114 114
115 for (handler = tunnel46_handlers; handler; handler = handler->next) 115 for (handler = tunnel46_handlers; handler; handler = handler->next)