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* [PATCH 1/2] erspan: return PACKET_REJECT when the appropriate tunnel is not found
@ 2018-09-10 14:19 Haishuang Yan
  2018-09-10 14:19 ` [PATCH 2/2] erspan: fix error handling for erspan tunnel Haishuang Yan
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Haishuang Yan @ 2018-09-10 14:19 UTC (permalink / raw)
  To: David S. Miller, Alexey Kuznetsov
  Cc: netdev, linux-kernel, Haishuang Yan, William Tu

If erspan tunnel hasn't been established, we'd better send icmp port
unreachable message after receive erspan packets.

Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN")
Cc: William Tu <u9012063@gmail.com>
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
---
 net/ipv4/ip_gre.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index ae714ae..85a714d 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -328,6 +328,8 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 		ip_tunnel_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);
 		return PACKET_RCVD;
 	}
+	return PACKET_REJECT;
+
 drop:
 	kfree_skb(skb);
 	return PACKET_RCVD;
-- 
1.8.3.1




^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2018-09-12  6:52 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-09-10 14:19 [PATCH 1/2] erspan: return PACKET_REJECT when the appropriate tunnel is not found Haishuang Yan
2018-09-10 14:19 ` [PATCH 2/2] erspan: fix error handling for erspan tunnel Haishuang Yan
2018-09-10 15:52   ` William Tu
2018-09-12  6:52   ` David Miller
2018-09-10 15:53 ` [PATCH 1/2] erspan: return PACKET_REJECT when the appropriate tunnel is not found William Tu
2018-09-12  6:52 ` David Miller

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