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ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.

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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki
2008-06-28 14:17:11 +09:00
parent 5ce83afaac
commit 778d80be52
5 changed files with 26 additions and 1 deletions
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3
net/ipv6/ip6_input.c
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@@ -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;