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Commit 5a64506b authored by Haishuang Yan's avatar Haishuang Yan Committed by David S. Miller
Browse files

erspan: return PACKET_REJECT when the appropriate tunnel is not found 



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

Fixes: 84e54fe0 ("gre: introduce native tunnel support for ERSPAN")
Cc: William Tu <u9012063@gmail.com>
Signed-off-by: default avatarHaishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: default avatarWilliam Tu <u9012063@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0297c1c2

net/ipv4/ip_gre.c

+2 −0
Original line number Diff line number Diff line
@@ -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;