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[INET]: Use port unreachable instead of proto for tunnels

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This patch changes GRE and SIT to generate port unreachable instead of
protocol unreachable errors when we can't find a matching tunnel for a
packet.

This removes the ambiguity as to whether the error is caused by no
tunnel being found or by the lack of support for the given tunnel
type.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2006-04-05 22:31:19 -07:00 committed by David S. Miller
parent cdee5751bf
commit 45af08be6d
2 changed files with 2 additions and 2 deletions
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2
net/ipv4/ip_gre.c
View File

@ -656,7 +656,7 @@ static int ipgre_rcv(struct sk_buff *skb)
read_unlock(&ipgre_lock);
return(0);
}
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PROT_UNREACH, 0);
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
drop:
read_unlock(&ipgre_lock);

2
net/ipv6/sit.c
View File

@ -397,7 +397,7 @@ static int ipip6_rcv(struct sk_buff *skb)
return 0;
}
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PROT_UNREACH, 0);
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
kfree_skb(skb);
read_unlock(&ipip6_lock);
out: