ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.
[linux-2.6.git] / net / ipv6 / ip6_input.c
index 34e5a96..ea81c61 100644 (file)
@@ -71,7 +71,8 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 
        IP6_INC_STATS_BH(idev, IPSTATS_MIB_INRECEIVES);
 
-       if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) {
+       if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL ||
+           !idev || unlikely(idev->cnf.disable_ipv6)) {
                IP6_INC_STATS_BH(idev, IPSTATS_MIB_INDISCARDS);
                rcu_read_unlock();
                goto out;