From aca071c1c1c07bcc0b100b7c58e59790d6be6a69 Mon Sep 17 00:00:00 2001
From: Changli Gao <xiaosuo@gmail.com>
Date: Tue, 17 Aug 2010 19:06:39 +0000
Subject: [PATCH] netfilter: xt_hashlimit: use proto_ports_offset() to support
AH message
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/netfilter/xt_hashlimit.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index b46a8390896d..9228ee0dc11a 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -448,6 +448,7 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
{
__be16 _ports[2], *ports;
u8 nexthdr;
+ int poff;
memset(dst, 0, sizeof(*dst));
@@ -492,19 +493,13 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
return 0;
}
- switch (nexthdr) {
- case IPPROTO_TCP:
- case IPPROTO_UDP:
- case IPPROTO_UDPLITE:
- case IPPROTO_SCTP:
- case IPPROTO_DCCP:
- ports = skb_header_pointer(skb, protoff, sizeof(_ports),
+ poff = proto_ports_offset(nexthdr);
+ if (poff >= 0) {
+ ports = skb_header_pointer(skb, protoff + poff, sizeof(_ports),
&_ports);
- break;
- default:
+ } else {
_ports[0] = _ports[1] = 0;
ports = _ports;
- break;
}
if (!ports)
return -1;
--
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