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authorHaishuang Yan <yanhaishuang@cmss.chinamobile.com>2018-09-10 22:19:47 +0800
committerDavid S. Miller <davem@davemloft.net>2018-09-11 23:50:53 -0700
commit5a64506b5c2c3cdb29d817723205330378075448 (patch)
tree0d277fb18f3a66184b6020c04fbc885b71f950fd /net/ipv4/ip_gre.c
parent0297c1c2eadb5bd996a873b87597af3b91c0d4ba (diff)
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: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN") Cc: William Tu <u9012063@gmail.com> Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Acked-by: William Tu <u9012063@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_gre.c')
-rw-r--r--net/ipv4/ip_gre.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index ae714aecc31c..85a714d36b66 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;