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authorHaishuang Yan <yanhaishuang@cmss.chinamobile.com>2017-12-20 10:21:47 +0800
committerDavid S. Miller <davem@davemloft.net>2017-12-20 13:51:46 -0500
commita7343211f007fdd9e4ebeb80b40d5054798eb890 (patch)
tree65cdec8254ba7a3e87728aeb1b06e88a9c2f17d1 /net
parentdd8d5b8c5b22e31079b259b8bfb686f1fac1080a (diff)
downloadlinux-a7343211f007fdd9e4ebeb80b40d5054798eb890.tar.bz2
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: 5a963eb61b7c ("ip6_gre: Add ERSPAN native tunnel support") Acked-by: William Tu <u9012063@gmail.com> Cc: William Tu <u9012063@gmail.com> Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_gre.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 9bd110371fe3..b7a79ddcf851 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -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);