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| author | Haishuang Yan <yanhaishuang@cmss.chinamobile.com> | 2018-09-10 17:19:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-26 09:37:58 +0300 |
| commit | 1beb52cea6cbfe24137587087e7818b620324714 (patch) | |
| tree | 827af3e6e60379789d7f8eced36bb1b4539a80f4 /net | |
| parent | 456191a8554ac6a16d6f497d1bf64d53ca173a68 (diff) | |
| download | linux-1beb52cea6cbfe24137587087e7818b620324714.tar.xz | |
erspan: return PACKET_REJECT when the appropriate tunnel is not found
[ Upstream commit 5a64506b5c2c3cdb29d817723205330378075448 ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/ip_gre.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index d40ef41a12b2..dd3bcf22fe8b 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -322,6 +322,8 @@ 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; |