From: Steffen Klassert Date: Tue, 5 Feb 2013 01:48:05 +0000 (+0000) Subject: ipv6: Don't send packet to big messages to self X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f4e53e292ad0626a9d4f80cbdb6adae867d8b2bc;p=openwrt%2Fstaging%2Fblogic.git ipv6: Don't send packet to big messages to self Calling icmpv6_send() on a local message size error leads to an incorrect update of the path mtu in the case when IPsec is used. So use ipv6_local_error() instead to notify the socket about the error. Reported-by: Jiri Bohac Signed-off-by: Steffen Klassert Signed-off-by: David S. Miller --- diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 906b7e6dd7fb..c953825f9098 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -242,9 +242,8 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6, dst->dev, dst_output); } - net_dbg_ratelimited("IPv6: sending pkt_too_big to self\n"); skb->dev = dst->dev; - icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); + ipv6_local_error(sk, EMSGSIZE, fl6, mtu); IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_FRAGFAILS); kfree_skb(skb); return -EMSGSIZE;