net/sched: act_pedit: check static offsets a priori

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Static key offsets should always be on 32 bit boundaries. Validate them on
create/update time for static offsets and move the datapath validation
for runtime offsets only.

iproute2 already errors out if a given offset and data size cannot be
packed to a 32 bit boundary. This change will make sure users which
create/update pedit instances directly via netlink also error out,
instead of finding out when packets are traversing.

Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Pedro Tammela 2023-04-21 18:25:15 -03:00 • committed by David S. Miller

parent 0c83c5210e

commit e1201bc781

1 changed files with 14 additions and 6 deletions

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net/sched/act_pedit.c

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