From: Jiri Pirko <jiri@resnulli.us>
To: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org, Jamal Hadi Salim <jhs@mojatatu.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>,
Eyal Birger <eyal.birger@gmail.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH net-next v5 1/4] net/sched: user-space can't set unknown tcfa_action values
Date: Mon, 30 Jul 2018 14:36:05 +0200 [thread overview]
Message-ID: <20180730123605.GE2058@nanopsycho> (raw)
In-Reply-To: <951ad078ad4d5ee108abcd85189460aed7948634.1532934532.git.pabeni@redhat.com>
Mon, Jul 30, 2018 at 02:30:42PM CEST, pabeni@redhat.com wrote:
>Currently, when initializing an action, the user-space can specify
>and use arbitrary values for the tcfa_action field. If the value
>is unknown by the kernel, is implicitly threaded as TC_ACT_UNSPEC.
>
>This change explicitly checks for unknown values at action creation
>time, and explicitly convert them to TC_ACT_UNSPEC. No functional
>changes are introduced, but this will allow introducing tcfa_action
>values not exposed to user-space in a later patch.
>
>Note: we can't use the above to hide TC_ACT_REDIRECT from user-space,
>as the latter is already part of uAPI.
>
>v3 -> v4:
> - use an helper to check for action validity (JiriP)
> - emit an extack for invalid actions (JiriP)
>v4 -> v5:
> - keep messages on a single line, drop net_warn (Marcelo)
Little nitpick: The changelog should be in the reverse order.
>
>Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
next prev parent reply other threads:[~2018-07-30 14:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-30 12:30 [PATCH net-next v5 0/4] TC: refactor act_mirred packets re-injection Paolo Abeni
2018-07-30 12:30 ` [PATCH net-next v5 1/4] net/sched: user-space can't set unknown tcfa_action values Paolo Abeni
2018-07-30 12:36 ` Jiri Pirko [this message]
2018-07-30 14:03 ` Jamal Hadi Salim
2018-07-30 14:21 ` Jiri Pirko
2018-07-30 16:41 ` Paolo Abeni
2018-07-30 19:31 ` Jamal Hadi Salim
2018-07-31 9:41 ` Paolo Abeni
2018-07-31 13:53 ` Jamal Hadi Salim
2018-07-31 14:40 ` Paolo Abeni
2018-08-01 14:34 ` Jamal Hadi Salim
2018-07-30 12:30 ` [PATCH net-next v5 2/4] tc/act: remove unneeded RCU lock in action callback Paolo Abeni
2018-07-30 12:30 ` [PATCH net-next v5 3/4] net/tc: introduce TC_ACT_REINSERT Paolo Abeni
2018-07-30 12:40 ` Jiri Pirko
2018-07-30 16:31 ` David Miller
2018-07-30 16:49 ` Jiri Pirko
2018-07-30 16:56 ` David Miller
2018-07-30 12:30 ` [PATCH net-next v5 4/4] act_mirred: use TC_ACT_REINSERT when possible Paolo Abeni
2018-07-30 12:42 ` Jiri Pirko
2018-07-30 16:31 ` [PATCH net-next v5 0/4] TC: refactor act_mirred packets re-injection David Miller
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