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| author |   Paolo Abeni <pabeni@redhat.com> | 2018-07-30 14:30:42 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-30 09:31:13 -0700 |
| commit | 802bfb19152c0fb4137c6ba72bcf042ee023e743 (patch) | |
| tree | 0330695824cf2ca9a5f5d270e4a161f7df857abf /net/sched/act_sample.c | |
| parent | liquidio: remove redundant function cn23xx_dump_iq_regs (diff) | |
| download | linux-dev-802bfb19152c0fb4137c6ba72bcf042ee023e743.tar.xz linux-dev-802bfb19152c0fb4137c6ba72bcf042ee023e743.zip | |
net/sched: user-space can't set unknown tcfa_action values
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)
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions