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| author | William Tu <u9012063@gmail.com> | 2018-02-05 22:35:35 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-06 17:32:49 +0100 |
| commit | 39f57f6799cdd437277122d4cd1c470c08f527c0 (patch) | |
| tree | 8d1d6ff983ddf133d915be19cf6e54c046b8849e /net/ipv4/ip_gre.c | |
| parent | net: erspan: fix metadata extraction (diff) | |
| download | linux-39f57f6799cdd437277122d4cd1c470c08f527c0.tar.xz linux-39f57f6799cdd437277122d4cd1c470c08f527c0.zip | |
net: erspan: fix erspan config overwrite
When an erspan tunnel device receives an erpsan packet with different
tunnel metadata (ex: version, index, hwid, direction), existing code
overwrites the tunnel device's erspan configuration with the received
packet's metadata. The patch fixes it.
Fixes: 1a66a836da63 ("gre: add collect_md mode to ERSPAN tunnel")
Fixes: f551c91de262 ("net: erspan: introduce erspan v2 for ip_gre")
Fixes: ef7baf5e083c ("ip6_gre: add ip6 erspan collect_md mode")
Fixes: 94d7d8f29287 ("ip6_gre: add erspan v2 support")
Signed-off-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.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 9b50eddd1882..45d97e9b2759 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -322,15 +322,6 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi, info = &tun_dst->u.tun_info; info->key.tun_flags |= TUNNEL_ERSPAN_OPT; info->options_len = sizeof(*md); - } else { - tunnel->erspan_ver = ver; - if (ver == 1) { - tunnel->index = ntohl(pkt_md->u.index); - } else { - tunnel->dir = pkt_md->u.md2.dir; - tunnel->hwid = get_hwid(&pkt_md->u.md2); - } - } skb_reset_mac_header(skb); |