X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=net%2Fnetfilter%2Fnf_conntrack_core.c;h=0fe11889ce141c70f9811a5b8fd89a6e9d267265;hb=2046219364a40bcb13482ff68eb6ccec13405633;hp=3d1411012a2c496d5bdf98649321e63074e63e60;hpb=bb50cbbd4beacd5ceda76c32fcb116c67fe8c66c;p=linux-2.6-omap-h63xx.git

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 3d1411012a2..0fe11889ce1 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -79,7 +79,8 @@ static u_int32_t __hash_conntrack(const struct nf_conntrack_tuple *tuple,
 	a = jhash2(tuple->src.u3.all, ARRAY_SIZE(tuple->src.u3.all),
 		   (tuple->src.l3num << 16) | tuple->dst.protonum);
 	b = jhash2(tuple->dst.u3.all, ARRAY_SIZE(tuple->dst.u3.all),
-		   (tuple->src.u.all << 16) | tuple->dst.u.all);
+		   ((__force __u16)tuple->src.u.all << 16) |
+		    (__force __u16)tuple->dst.u.all);
 
 	return jhash_2words(a, b, rnd) % size;
 }
@@ -113,6 +114,36 @@ nf_ct_get_tuple(const struct sk_buff *skb,
 }
 EXPORT_SYMBOL_GPL(nf_ct_get_tuple);
 
+int nf_ct_get_tuplepr(const struct sk_buff *skb,
+		      unsigned int nhoff,
+		      u_int16_t l3num,
+		      struct nf_conntrack_tuple *tuple)
+{
+	struct nf_conntrack_l3proto *l3proto;
+	struct nf_conntrack_l4proto *l4proto;
+	unsigned int protoff;
+	u_int8_t protonum;
+	int ret;
+
+	rcu_read_lock();
+
+	l3proto = __nf_ct_l3proto_find(l3num);
+	ret = l3proto->get_l4proto(skb, nhoff, &protoff, &protonum);
+	if (ret != NF_ACCEPT) {
+		rcu_read_unlock();
+		return 0;
+	}
+
+	l4proto = __nf_ct_l4proto_find(l3num, protonum);
+
+	ret = nf_ct_get_tuple(skb, nhoff, protoff, l3num, protonum, tuple,
+			      l3proto, l4proto);
+
+	rcu_read_unlock();
+	return ret;
+}
+EXPORT_SYMBOL_GPL(nf_ct_get_tuplepr);
+
 int
 nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
 		   const struct nf_conntrack_tuple *orig,
@@ -622,9 +653,12 @@ nf_conntrack_in(int pf, unsigned int hooknum, struct sk_buff **pskb)
 
 	/* rcu_read_lock()ed by nf_hook_slow */
 	l3proto = __nf_ct_l3proto_find((u_int16_t)pf);
-
-	if ((ret = l3proto->prepare(pskb, hooknum, &dataoff, &protonum)) <= 0) {
+	ret = l3proto->get_l4proto(*pskb, skb_network_offset(*pskb),
+				   &dataoff, &protonum);
+	if (ret <= 0) {
 		pr_debug("not prepared to track yet or error occured\n");
+		NF_CT_STAT_INC_ATOMIC(error);
+		NF_CT_STAT_INC_ATOMIC(invalid);
 		return -ret;
 	}
 
@@ -1075,7 +1109,7 @@ int __init nf_conntrack_init(void)
 
 	nf_conntrack_cachep = kmem_cache_create("nf_conntrack",
 						sizeof(struct nf_conn),
-						0, 0, NULL, NULL);
+						0, 0, NULL);
 	if (!nf_conntrack_cachep) {
 		printk(KERN_ERR "Unable to create nf_conn slab cache\n");
 		goto err_free_hash;