netfilter: nf_tables: check NFT_SET_CONCAT flag if field_count is specified

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Since f3a2181e16 ("netfilter: nf_tables: Support for sets with
multiple ranged fields"), it possible to combine intervals and
concatenations. Later on, ef516e8625 ("netfilter: nf_tables:
reintroduce the NFT_SET_CONCAT flag") provides the NFT_SET_CONCAT flag
for userspace to report that the set stores a concatenation.

Make sure NFT_SET_CONCAT is set on if field_count is specified for
consistency. Otherwise, if NFT_SET_CONCAT is specified with no
field_count, bail out with EINVAL.

Fixes: ef516e8625 ("netfilter: nf_tables: reintroduce the NFT_SET_CONCAT flag")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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Pablo Neira Ayuso 2022-08-15 17:55:07 +02:00

parent fc0ae524b5

commit 1b6345d416

1 changed files with 5 additions and 0 deletions

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net/netfilter/nf_tables_api.c

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