From 9d1f979986c2e29632b6a8f7a8ef8b3c7d24a48c Mon Sep 17 00:00:00 2001 From: Jeremy Sowden Date: Wed, 15 Jan 2020 20:05:51 +0000 Subject: netfilter: bitwise: add NFTA_BITWISE_OP netlink attribute. Add a new bitwise netlink attribute, NFTA_BITWISE_OP, which is set to a value of a new enum, nft_bitwise_ops. It describes the type of operation an expression contains. Currently, it only has one value: NFT_BITWISE_BOOL. More values will be added later to implement shifts. Signed-off-by: Jeremy Sowden Signed-off-by: Pablo Neira Ayuso --- include/uapi/linux/netfilter/nf_tables.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index dd4611767933..0cddf357281f 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -484,6 +484,16 @@ enum nft_immediate_attributes { }; #define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1) +/** + * enum nft_bitwise_ops - nf_tables bitwise operations + * + * @NFT_BITWISE_BOOL: mask-and-xor operation used to implement NOT, AND, OR and + * XOR boolean operations + */ +enum nft_bitwise_ops { + NFT_BITWISE_BOOL, +}; + /** * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes * @@ -492,6 +502,7 @@ enum nft_immediate_attributes { * @NFTA_BITWISE_LEN: length of operands (NLA_U32) * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes) * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes) + * @NFTA_BITWISE_OP: type of operation (NLA_U32: nft_bitwise_ops) * * The bitwise expression performs the following operation: * @@ -512,6 +523,7 @@ enum nft_bitwise_attributes { NFTA_BITWISE_LEN, NFTA_BITWISE_MASK, NFTA_BITWISE_XOR, + NFTA_BITWISE_OP, __NFTA_BITWISE_MAX }; #define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1) -- cgit v1.2.3