X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Fip_input.c;h=d36e310b314d8d3de349d36a5cfa24a36614484e;hb=7524d7d6de5d5d3f081de8cf5479819fad339661;hp=97069399d8645ffe3e4af364ba353db7a1011687;hpb=c6799ade4ae04b53a5f677e5289116155ff01574;p=linux-2.6

diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 97069399d8..d36e310b31 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -172,8 +172,7 @@ int ip_call_ra_chain(struct sk_buff *skb)
 		    (!sk->sk_bound_dev_if ||
 		     sk->sk_bound_dev_if == skb->dev->ifindex)) {
 			if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
-				skb = ip_defrag(skb, IP_DEFRAG_CALL_RA_CHAIN);
-				if (skb == NULL) {
+				if (ip_defrag(skb, IP_DEFRAG_CALL_RA_CHAIN)) {
 					read_unlock(&ip_ra_lock);
 					return 1;
 				}
@@ -196,7 +195,7 @@ int ip_call_ra_chain(struct sk_buff *skb)
 	return 0;
 }
 
-static inline int ip_local_deliver_finish(struct sk_buff *skb)
+static int ip_local_deliver_finish(struct sk_buff *skb)
 {
 	__skb_pull(skb, ip_hdrlen(skb));
 
@@ -205,22 +204,14 @@ static inline int ip_local_deliver_finish(struct sk_buff *skb)
 
 	rcu_read_lock();
 	{
-		/* Note: See raw.c and net/raw.h, RAWV4_HTABLE_SIZE==MAX_INET_PROTOS */
 		int protocol = ip_hdr(skb)->protocol;
-		int hash;
-		struct sock *raw_sk;
+		int hash, raw;
 		struct net_protocol *ipprot;
 
 	resubmit:
-		hash = protocol & (MAX_INET_PROTOS - 1);
-		raw_sk = sk_head(&raw_v4_htable[hash]);
-
-		/* If there maybe a raw socket we must check - if not we
-		 * don't care less
-		 */
-		if (raw_sk && !raw_v4_input(skb, ip_hdr(skb), hash))
-			raw_sk = NULL;
+		raw = raw_local_deliver(skb, protocol);
 
+		hash = protocol & (MAX_INET_PROTOS - 1);
 		if ((ipprot = rcu_dereference(inet_protos[hash])) != NULL) {
 			int ret;
 
@@ -238,7 +229,7 @@ static inline int ip_local_deliver_finish(struct sk_buff *skb)
 			}
 			IP_INC_STATS_BH(IPSTATS_MIB_INDELIVERS);
 		} else {
-			if (!raw_sk) {
+			if (!raw) {
 				if (xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
 					IP_INC_STATS_BH(IPSTATS_MIB_INUNKNOWNPROTOS);
 					icmp_send(skb, ICMP_DEST_UNREACH,
@@ -265,12 +256,11 @@ int ip_local_deliver(struct sk_buff *skb)
 	 */
 
 	if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
-		skb = ip_defrag(skb, IP_DEFRAG_LOCAL_DELIVER);
-		if (!skb)
+		if (ip_defrag(skb, IP_DEFRAG_LOCAL_DELIVER))
 			return 0;
 	}
 
-	return NF_HOOK(PF_INET, NF_IP_LOCAL_IN, skb, skb->dev, NULL,
+	return NF_HOOK(PF_INET, NF_INET_LOCAL_IN, skb, skb->dev, NULL,
 		       ip_local_deliver_finish);
 }
 
@@ -326,7 +316,7 @@ drop:
 	return -1;
 }
 
-static inline int ip_rcv_finish(struct sk_buff *skb)
+static int ip_rcv_finish(struct sk_buff *skb)
 {
 	const struct iphdr *iph = ip_hdr(skb);
 	struct rtable *rt;
@@ -349,7 +339,7 @@ static inline int ip_rcv_finish(struct sk_buff *skb)
 
 #ifdef CONFIG_NET_CLS_ROUTE
 	if (unlikely(skb->dst->tclassid)) {
-		struct ip_rt_acct *st = ip_rt_acct + 256*smp_processor_id();
+		struct ip_rt_acct *st = per_cpu_ptr(ip_rt_acct, smp_processor_id());
 		u32 idx = skb->dst->tclassid;
 		st[idx&0xFF].o_packets++;
 		st[idx&0xFF].o_bytes+=skb->len;
@@ -361,7 +351,7 @@ static inline int ip_rcv_finish(struct sk_buff *skb)
 	if (iph->ihl > 5 && ip_rcv_options(skb))
 		goto drop;
 
-	rt = (struct rtable*)skb->dst;
+	rt = skb->rtable;
 	if (rt->rt_type == RTN_MULTICAST)
 		IP_INC_STATS_BH(IPSTATS_MIB_INMCASTPKTS);
 	else if (rt->rt_type == RTN_BROADCAST)
@@ -382,6 +372,9 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	struct iphdr *iph;
 	u32 len;
 
+	if (dev->nd_net != &init_net)
+		goto drop;
+
 	/* When the interface is in promisc. mode, drop all the crap
 	 * that it receives, do not try to analyse it.
 	 */
@@ -441,7 +434,7 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	/* Remove any debris in the socket control block */
 	memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
 
-	return NF_HOOK(PF_INET, NF_IP_PRE_ROUTING, skb, dev, NULL,
+	return NF_HOOK(PF_INET, NF_INET_PRE_ROUTING, skb, dev, NULL,
 		       ip_rcv_finish);
 
 inhdr_error: