1 #ifndef _NET_NF_TABLES_CORE_H
2 #define _NET_NF_TABLES_CORE_H
4 extern struct nft_expr_type nft_imm_type;
5 extern struct nft_expr_type nft_cmp_type;
6 extern struct nft_expr_type nft_lookup_type;
7 extern struct nft_expr_type nft_bitwise_type;
8 extern struct nft_expr_type nft_byteorder_type;
9 extern struct nft_expr_type nft_payload_type;
10 extern struct nft_expr_type nft_dynset_type;
11 extern struct nft_expr_type nft_range_type;
13 int nf_tables_core_module_init(void);
14 void nf_tables_core_module_exit(void);
16 struct nft_cmp_fast_expr {
18 enum nft_registers sreg:8;
22 /* Calculate the mask for the nft_cmp_fast expression. On big endian the
23 * mask needs to include the *upper* bytes when interpreting that data as
24 * something smaller than the full u32, therefore a cpu_to_le32 is done.
26 static inline u32 nft_cmp_fast_mask(unsigned int len)
28 return cpu_to_le32(~0U >> (FIELD_SIZEOF(struct nft_cmp_fast_expr,
29 data) * BITS_PER_BYTE - len));
32 extern const struct nft_expr_ops nft_cmp_fast_ops;
35 enum nft_payload_bases base:8;
38 enum nft_registers dreg:8;
41 struct nft_payload_set {
42 enum nft_payload_bases base:8;
45 enum nft_registers sreg:8;
51 extern const struct nft_expr_ops nft_payload_fast_ops;
52 extern struct static_key_false nft_trace_enabled;
54 #endif /* _NET_NF_TABLES_CORE_H */