Commit a7343211 authored by Haishuang Yan's avatar Haishuang Yan Committed by David S. Miller

ip6_gre: fix error path when ip6erspan_rcv failed

Same as ipv4 code, when ip6erspan_rcv call return PACKET_REJECT, we
should call icmpv6_send to send icmp unreachable message in error path.

Fixes: 5a963eb6 ("ip6_gre: Add ERSPAN native tunnel support")
Acked-by: default avatarWilliam Tu <u9012063@gmail.com>
Cc: William Tu <u9012063@gmail.com>
Signed-off-by: default avatarHaishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dd8d5b8c
......@@ -602,12 +602,13 @@ static int gre_rcv(struct sk_buff *skb)
tpi.proto == htons(ETH_P_ERSPAN2))) {
if (ip6erspan_rcv(skb, hdr_len, &tpi) == PACKET_RCVD)
return 0;
goto drop;
goto out;
}
if (ip6gre_rcv(skb, &tpi) == PACKET_RCVD)
return 0;
out:
icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
drop:
kfree_skb(skb);
......
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