From b9959c2e4460b1df1d113d829180398588bb04b4 Mon Sep 17 00:00:00 2001 From: Changli Gao Date: Tue, 17 Aug 2010 19:07:35 +0000 Subject: [PATCH] net_sched: sch_sfq: use proto_ports_offset() to support AH message Signed-off-by: Changli Gao Signed-off-by: David S. Miller --- net/sched/sch_sfq.c | 33 ++++++++++++++++----------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index 201cbac2b32c..3cf478d012dd 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -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: -- 2.20.1