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authorJeremy Sowden <jeremy@azazel.net>2020-01-15 20:05:51 +0000
committerPablo Neira Ayuso <pablo@netfilter.org>2020-01-16 15:51:57 +0100
commit9d1f979986c2e29632b6a8f7a8ef8b3c7d24a48c (patch)
tree741cd0940aa95b4b2efc492ad7ef6e967f9f454e /include/uapi/linux/netfilter/nf_tables.h
parent577c734a81e2f59aa4490071ebe074fc05d5540b (diff)
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 <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/uapi/linux/netfilter/nf_tables.h')
-rw-r--r--include/uapi/linux/netfilter/nf_tables.h12
1 files changed, 12 insertions, 0 deletions
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
@@ -485,6 +485,16 @@ 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
*
* @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
@@ -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)