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net_sched: sch_sfq: 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>
This commit is contained in:
Changli Gao 2010-08-17 19:07:35 +00:00 committed by David S. Miller
parent aca071c1c1
commit b9959c2e44
1 changed files with 16 additions and 17 deletions
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33
net/sched/sch_sfq.c
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@ -123,40 +123,39 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb)
case htons(ETH_P_IP):
{
const struct iphdr *iph;
int poff;
if (!pskb_network_may_pull(skb, sizeof(*iph)))
goto err;
iph = ip_hdr(skb);
h = (__force u32)iph->daddr;
h2 = (__force u32)iph->saddr ^ iph->protocol;
if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) &&
(iph->protocol == IPPROTO_TCP ||
iph->protocol == IPPROTO_UDP ||
iph->protocol == IPPROTO_UDPLITE ||
iph->protocol == IPPROTO_SCTP ||
iph->protocol == IPPROTO_DCCP ||
iph->protocol == IPPROTO_ESP) &&
pskb_network_may_pull(skb, iph->ihl * 4 + 4))
h2 ^= *(((u32*)iph) + iph->ihl);
if (iph->frag_off & htons(IP_MF|IP_OFFSET))
break;
poff = proto_ports_offset(iph->protocol);
if (poff >= 0 &&
pskb_network_may_pull(skb, iph->ihl * 4 + 4 + poff)) {
iph = ip_hdr(skb);
h2 ^= *(u32*)((void *)iph + iph->ihl * 4 + poff);
}
break;
}
case htons(ETH_P_IPV6):
{
struct ipv6hdr *iph;
int poff;
if (!pskb_network_may_pull(skb, sizeof(*iph)))
goto err;
iph = ipv6_hdr(skb);
h = (__force u32)iph->daddr.s6_addr32[3];
h2 = (__force u32)iph->saddr.s6_addr32[3] ^ iph->nexthdr;
if ((iph->nexthdr == IPPROTO_TCP ||
iph->nexthdr == IPPROTO_UDP ||
iph->nexthdr == IPPROTO_UDPLITE ||
iph->nexthdr == IPPROTO_SCTP ||
iph->nexthdr == IPPROTO_DCCP ||
iph->nexthdr == IPPROTO_ESP) &&
pskb_network_may_pull(skb, sizeof(*iph) + 4))
h2 ^= *(u32*)&iph[1];
poff = proto_ports_offset(iph->nexthdr);
if (poff >= 0 &&
pskb_network_may_pull(skb, sizeof(*iph) + 4 + poff)) {
iph = ipv6_hdr(skb);
h2 ^= *(u32*)((void *)iph + sizeof(*iph) + poff);
}
break;
}
default: