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netfilter: bitwise: add NFTA_BITWISE_DATA attribute.

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Add a new bitwise netlink attribute that will be used by shift
operations to store the size of the shift.  It is not used by boolean
operations.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Jeremy Sowden
2020-01-15 20:05:56 +00:00
committed by Pablo Neira Ayuso
parent ed991d4363
commit 779f725e14
2 changed files with 8 additions and 0 deletions
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3
include/uapi/linux/netfilter/nf_tables.h
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@@ -503,6 +503,8 @@ enum nft_bitwise_ops {
* @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)
* @NFTA_BITWISE_DATA: argument for non-boolean operations
* (NLA_NESTED: nft_data_attributes)
*
* The bitwise expression performs the following operation:
*
@@ -524,6 +526,7 @@ enum nft_bitwise_attributes {
NFTA_BITWISE_MASK,
NFTA_BITWISE_XOR,
NFTA_BITWISE_OP,
NFTA_BITWISE_DATA,
__NFTA_BITWISE_MAX
};
#define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1)