path: root/security
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authorHangbin Liu <liuhangbin@gmail.com>2021-08-09 15:04:55 +0800
committerDavid S. Miller <davem@davemloft.net>2021-08-09 10:58:47 +0100
commitd09c548dbf3b31cb07bba562e0f452edfa01efe3 (patch)
treeb427b8cb5ba0bc23d61e86416c421d829fdc6195 /security
parent605bb4434d28930fd12c79af24bf6247cbf944be (diff)
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')
0 files changed, 0 insertions, 0 deletions