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author | Hangbin Liu <liuhangbin@gmail.com> | 2021-08-09 15:04:55 +0800 |
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committer | David S. Miller <davem@davemloft.net> | 2021-08-09 10:58:47 +0100 |
commit | d09c548dbf3b31cb07bba562e0f452edfa01efe3 (patch) | |
tree | b427b8cb5ba0bc23d61e86416c421d829fdc6195 /security/security.c | |
parent | 605bb4434d28930fd12c79af24bf6247cbf944be (diff) | |
download | linux-d09c548dbf3b31cb07bba562e0f452edfa01efe3.tar.gz linux-d09c548dbf3b31cb07bba562e0f452edfa01efe3.tar.bz2 linux-d09c548dbf3b31cb07bba562e0f452edfa01efe3.zip |
net: sched: act_mirred: Reset ct info when mirror/redirect skb
When mirror/redirect a skb to a different port, the ct info should be reset
for reclassification. Or the pkts will match unexpected rules. For example,
with following topology and commands:
-----------
|
veth0 -+-------
|
veth1 -+-------
|
------------
tc qdisc add dev veth0 clsact
# The same with "action mirred egress mirror dev veth1" or "action mirred ingress redirect dev veth1"
tc filter add dev veth0 egress chain 1 protocol ip flower ct_state +trk action mirred ingress mirror dev veth1
tc filter add dev veth0 egress chain 0 protocol ip flower ct_state -inv action ct commit action goto chain 1
tc qdisc add dev veth1 clsact
tc filter add dev veth1 ingress chain 0 protocol ip flower ct_state +trk action drop
ping <remove ip via veth0> &
tc -s filter show dev veth1 ingress
With command 'tc -s filter show', we can find the pkts were dropped on
veth1.
Fixes: b57dc7c13ea9 ("net/sched: Introduce action ct")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security/security.c')
0 files changed, 0 insertions, 0 deletions