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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-06-28 14:17:11 +0900
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-07-03 17:51:55 +0900
commit778d80be52699596bf70e0eb0761cf5e1e46088d (patch)
tree607d0bd6fe7c7d6f59d88b9287fc534f6693998d /net/ipv6/ip6_output.c
parent5ce83afaac956238c3c25f60a899c511e9d8cbf4 (diff)
downloadblackbird-op-linux-778d80be52699596bf70e0eb0761cf5e1e46088d.tar.gz
blackbird-op-linux-778d80be52699596bf70e0eb0761cf5e1e46088d.zip
ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net/ipv6/ip6_output.c')
-rw-r--r--net/ipv6/ip6_output.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 871bdec09edb..0981c1ef3057 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -173,6 +173,13 @@ static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
int ip6_output(struct sk_buff *skb)
{
+ struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+ if (unlikely(idev->cnf.disable_ipv6)) {
+ IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
+ kfree_skb(skb);
+ return 0;
+ }
+
if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
dst_allfrag(skb->dst))
return ip6_fragment(skb, ip6_output2);
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