[IPV6]: ipv6_add_addr should install dstentry earlier

[linux-2.6-omap-h63xx.git] / net / ipv6 / ip6_input.c

diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index a6026d2787d2c042a05924c33ebba66f91b6f101..25c2a9e0389549f05578c2ad3155ab105ef8ecfa 100644 (file)
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -48,7 +48,7 @@
 
 
 
-static inline int ip6_rcv_finish( struct sk_buff *skb) 
+inline int ip6_rcv_finish( struct sk_buff *skb) 
 {
        if (skb->dst == NULL)
                ip6_route_input(skb);
@@ -71,6 +71,8 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
                goto out;
        }
 
+       memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm));
+
        /*
         * Store incoming device index. When the packet will
         * be queued, we cannot refer to skb->dev anymore.
@@ -84,19 +86,17 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
         */
        IP6CB(skb)->iif = skb->dst ? ((struct rt6_info *)skb->dst)->rt6i_idev->dev->ifindex : dev->ifindex;
 
-       if (skb->len < sizeof(struct ipv6hdr))
+       if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))
                goto err;
 
-       if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) {
-               IP6_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
-               goto drop;
-       }
-
        hdr = skb->nh.ipv6h;
 
        if (hdr->version != 6)
                goto err;
 
+       skb->h.raw = (u8 *)(hdr + 1);
+       IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
+
        pkt_len = ntohs(hdr->payload_len);
 
        /* pkt_len may be zero if Jumbo payload option is present */
@@ -111,12 +111,10 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
        }
 
        if (hdr->nexthdr == NEXTHDR_HOP) {
-               skb->h.raw = (u8*)(hdr+1);
-               if (ipv6_parse_hopopts(skb, offsetof(struct ipv6hdr, nexthdr)) < 0) {
+               if (ipv6_parse_hopopts(skb) < 0) {
                        IP6_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
                        return 0;
                }
-               hdr = skb->nh.ipv6h;
        }
 
        return NF_HOOK(PF_INET6,NF_IP6_PRE_ROUTING, skb, dev, NULL, ip6_rcv_finish);
@@ -143,26 +141,15 @@ static inline int ip6_input_finish(struct sk_buff *skb)
        int nexthdr;
        u8 hash;
 
-       skb->h.raw = skb->nh.raw + sizeof(struct ipv6hdr);
-
        /*
         *      Parse extension headers
         */
 
-       nexthdr = skb->nh.ipv6h->nexthdr;
-       nhoff = offsetof(struct ipv6hdr, nexthdr);
-
-       /* Skip hop-by-hop options, they are already parsed. */
-       if (nexthdr == NEXTHDR_HOP) {
-               nhoff = sizeof(struct ipv6hdr);
-               nexthdr = skb->h.raw[0];
-               skb->h.raw += (skb->h.raw[1]+1)<<3;
-       }
-
        rcu_read_lock();
 resubmit:
        if (!pskb_pull(skb, skb->h.raw - skb->data))
                goto discard;
+       nhoff = IP6CB(skb)->nhoff;
        nexthdr = skb->nh.raw[nhoff];
 
        raw_sk = sk_head(&raw_v6_htable[nexthdr & (MAX_INET_PROTOS - 1)]);
@@ -194,7 +181,7 @@ resubmit:
                    !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) 
                        goto discard;
                
-               ret = ipprot->handler(&skb, &nhoff);
+               ret = ipprot->handler(&skb);
                if (ret > 0)
                        goto resubmit;
                else if (ret == 0)