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authorPablo Neira Ayuso <pablo@netfilter.org>2016-09-20 17:53:21 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2016-10-13 10:31:15 +0200
commit200da4866ada06b2ee0f708c93dbdf9dcd0fcfe4 (patch)
tree62e494df34d41ad1acf94e1ab54b11365651cc4a /include/linux
parentc11103944cee05fbd1bba7ed60b017b6bd4ad57b (diff)
src: add range expression
Add range expression available that is scheduled for linux kernel 4.9. This range expression allows us to check if a given value placed in a register is within/outside a specified interval. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/netfilter/nf_tables.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/netfilter/nf_tables.h b/include/linux/netfilter/nf_tables.h
index 681082e..30e3b21 100644
--- a/include/linux/netfilter/nf_tables.h
+++ b/include/linux/netfilter/nf_tables.h
@@ -546,6 +546,35 @@ enum nft_cmp_attributes {
};
#define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1)
+/**
+ * enum nft_range_ops - nf_tables range operator
+ *
+ * @NFT_RANGE_EQ: equal
+ * @NFT_RANGE_NEQ: not equal
+ */
+enum nft_range_ops {
+ NFT_RANGE_EQ,
+ NFT_RANGE_NEQ,
+};
+
+/**
+ * enum nft_range_attributes - nf_tables range expression netlink attributes
+ *
+ * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers)
+ * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_cmp_ops)
+ * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes)
+ * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes)
+ */
+enum nft_range_attributes {
+ NFTA_RANGE_UNSPEC,
+ NFTA_RANGE_SREG,
+ NFTA_RANGE_OP,
+ NFTA_RANGE_FROM_DATA,
+ NFTA_RANGE_TO_DATA,
+ __NFTA_RANGE_MAX
+};
+#define NFTA_RANGE_MAX (__NFTA_RANGE_MAX - 1)
+
enum nft_lookup_flags {
NFT_LOOKUP_F_INV = (1 << 0),
};