[INET]: Consolidate xxx_find() in fragment management

[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 61e7a6c8141d06b8ec0e9eda7fbff686946a3533..fac6f7f9dd73a7722831a0f4ed716e9f31c2d6e5 100644 (file)
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -61,6 +61,11 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
        u32             pkt_len;
        struct inet6_dev *idev;
 
+       if (dev->nd_net != &init_net) {
+               kfree_skb(skb);
+               return 0;
+       }
+
        if (skb->pkt_type == PACKET_OTHERHOST) {
                kfree_skb(skb);
                return 0;
@@ -86,7 +91,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
         *
         * BTW, when we send a packet for our own local address on a
         * non-loopback interface (e.g. ethX), it is being delivered
-        * via the loopback interface (lo) here; skb->dev = &loopback_dev.
+        * via the loopback interface (lo) here; skb->dev = loopback_dev.
         * It, however, should be considered as if it is being
         * arrived via the sending interface (ethX), because of the
         * nature of scoping architecture. --yoshfuji
@@ -96,12 +101,12 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
        if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))
                goto err;
 
-       hdr = skb->nh.ipv6h;
+       hdr = ipv6_hdr(skb);
 
        if (hdr->version != 6)
                goto err;
 
-       skb->h.raw = (u8 *)(hdr + 1);
+       skb->transport_header = skb->network_header + sizeof(*hdr);
        IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
 
        pkt_len = ntohs(hdr->payload_len);
@@ -116,11 +121,11 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
                        IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS);
                        goto drop;
                }
-               hdr = skb->nh.ipv6h;
+               hdr = ipv6_hdr(skb);
        }
 
        if (hdr->nexthdr == NEXTHDR_HOP) {
-               if (ipv6_parse_hopopts(&skb) < 0) {
+               if (ipv6_parse_hopopts(skb) < 0) {
                        IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS);
                        rcu_read_unlock();
                        return 0;
@@ -144,7 +149,7 @@ out:
  */
 
 
-static inline int ip6_input_finish(struct sk_buff *skb)
+static int ip6_input_finish(struct sk_buff *skb)
 {
        struct inet6_protocol *ipprot;
        struct sock *raw_sk;
@@ -160,10 +165,10 @@ static inline int ip6_input_finish(struct sk_buff *skb)
        rcu_read_lock();
 resubmit:
        idev = ip6_dst_idev(skb->dst);
-       if (!pskb_pull(skb, skb->h.raw - skb->data))
+       if (!pskb_pull(skb, skb_transport_offset(skb)))
                goto discard;
        nhoff = IP6CB(skb)->nhoff;
-       nexthdr = skb->nh.raw[nhoff];
+       nexthdr = skb_network_header(skb)[nhoff];
 
        raw_sk = sk_head(&raw_v6_htable[nexthdr & (MAX_INET_PROTOS - 1)]);
        if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
@@ -181,9 +186,9 @@ resubmit:
                           indefinitely. */
                        nf_reset(skb);
 
-                       skb_postpull_rcsum(skb, skb->nh.raw,
-                                          skb->h.raw - skb->nh.raw);
-                       hdr = skb->nh.ipv6h;
+                       skb_postpull_rcsum(skb, skb_network_header(skb),
+                                          skb_network_header_len(skb));
+                       hdr = ipv6_hdr(skb);
                        if (ipv6_addr_is_multicast(&hdr->daddr) &&
                            !ipv6_chk_mcast_addr(skb->dev, &hdr->daddr,
                            &hdr->saddr) &&
@@ -194,7 +199,7 @@ resubmit:
                    !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))
                        goto discard;
 
-               ret = ipprot->handler(&skb);
+               ret = ipprot->handler(skb);
                if (ret > 0)
                        goto resubmit;
                else if (ret == 0)
@@ -234,8 +239,8 @@ int ip6_mc_input(struct sk_buff *skb)
 
        IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INMCASTPKTS);
 
-       hdr = skb->nh.ipv6h;
-       deliver = likely(!(skb->dev->flags & (IFF_PROMISC|IFF_ALLMULTI))) ||
+       hdr = ipv6_hdr(skb);
+       deliver = unlikely(skb->dev->flags & (IFF_PROMISC|IFF_ALLMULTI)) ||
            ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, NULL);
 
        /*