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Commit 6f809da2 authored by Steffen Klassert's avatar Steffen Klassert Committed by David S. Miller
Browse files

ipv6: Add an error handler for icmp6 



pmtu and redirect events are now handled in the protocols error handler,
so add an error handler for icmp6 to do this. It is needed in the case
when we have no socket context. Based on a patch by Duan Jiong.

Reported-by: default avatarDuan Jiong <djduanjiong@gmail.com>
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d6fb3be5

net/ipv6/icmp.c

+12 −0
Original line number Diff line number Diff line
@@ -81,10 +81,22 @@ static inline struct sock *icmpv6_sk(struct net *net) 
	return net->ipv6.icmp_sk[smp_processor_id()];

}



static void icmpv6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,

		       u8 type, u8 code, int offset, __be32 info)

{

	struct net *net = dev_net(skb->dev);



	if (type == ICMPV6_PKT_TOOBIG)

		ip6_update_pmtu(skb, net, info, 0, 0);

	else if (type == NDISC_REDIRECT)

		ip6_redirect(skb, net, 0, 0);

}



static int icmpv6_rcv(struct sk_buff *skb);



static const struct inet6_protocol icmpv6_protocol = {

	.handler	=	icmpv6_rcv,

	.err_handler	=	icmpv6_err,

	.flags		=	INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,

};