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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-23 16:23:33 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-26 00:16:42 +0300 |
| commit | 0f3cd9b3697708c86a825ae3cedabf7be6fd3e72 (patch) | |
| tree | 14b59bebf1a6dc16a961864a93febfbacc4d3715 /include/net | |
| parent | 7a682575ad4829b4de3e672a6ad5f73a05826b82 (diff) | |
| download | linux-0f3cd9b3697708c86a825ae3cedabf7be6fd3e72.tar.xz | |
netfilter: nf_tables: add range expression
Inverse ranges != [a,b] are not currently possible because rules are
composites of && operations, and we need to express this:
data < a || data > b
This patch adds a new range expression. Positive ranges can be already
through two cmp expressions:
cmp(sreg, data, >=)
cmp(sreg, data, <=)
This new range expression provides an alternative way to express this.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_tables_core.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h index a9060dd99db7..00f4f6b1b1ba 100644 --- a/include/net/netfilter/nf_tables_core.h +++ b/include/net/netfilter/nf_tables_core.h @@ -28,6 +28,9 @@ extern const struct nft_expr_ops nft_cmp_fast_ops; int nft_cmp_module_init(void); void nft_cmp_module_exit(void); +int nft_range_module_init(void); +void nft_range_module_exit(void); + int nft_lookup_module_init(void); void nft_lookup_module_exit(void); |