[NETFILTER] ctnetlink: Add support to identify expectations by ID's

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Nov 9, 2005 · a856a19 · a856a19
1 parent fcda461
commit a856a19
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c
@@ -1293,6 +1293,14 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
 	if (!exp)
 		return -ENOENT;
 
+	if (cda[CTA_EXPECT_ID-1]) {
+		u_int32_t id = *(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
+		if (exp->id != ntohl(id)) {
+			ip_conntrack_expect_put(exp);
+			return -ENOENT;
+		}
+	}	
+
 	err = -ENOMEM;
 	skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
 	if (!skb2)