1 #ifndef _NET_NF_TABLES_OFFLOAD_H
2 #define _NET_NF_TABLES_OFFLOAD_H
4 #include <net/flow_offload.h>
5 #include <net/netfilter/nf_tables.h>
7 struct nft_offload_reg {
16 enum nft_offload_dep_type {
17 NFT_OFFLOAD_DEP_UNSPEC = 0,
18 NFT_OFFLOAD_DEP_NETWORK,
19 NFT_OFFLOAD_DEP_TRANSPORT,
22 struct nft_offload_ctx {
24 enum nft_offload_dep_type type;
28 unsigned int num_actions;
30 struct nft_offload_reg regs[NFT_REG32_15 + 1];
33 void nft_offload_set_dependency(struct nft_offload_ctx *ctx,
34 enum nft_offload_dep_type type);
35 void nft_offload_update_dependency(struct nft_offload_ctx *ctx,
36 const void *data, u32 len);
39 struct flow_dissector_key_basic basic;
40 struct flow_dissector_key_control control;
42 struct flow_dissector_key_ipv4_addrs ipv4;
43 struct flow_dissector_key_ipv6_addrs ipv6;
45 struct flow_dissector_key_ports tp;
46 struct flow_dissector_key_ip ip;
47 struct flow_dissector_key_vlan vlan;
48 struct flow_dissector_key_eth_addrs eth_addrs;
49 struct flow_dissector_key_meta meta;
50 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
52 struct nft_flow_match {
53 struct flow_dissector dissector;
54 struct nft_flow_key key;
55 struct nft_flow_key mask;
58 struct nft_flow_rule {
60 struct nft_flow_match match;
61 struct flow_rule *rule;
64 #define NFT_OFFLOAD_F_ACTION (1 << 0)
66 void nft_flow_rule_set_addr_type(struct nft_flow_rule *flow,
67 enum flow_dissector_key_id addr_type);
70 struct nft_flow_rule *nft_flow_rule_create(struct net *net, const struct nft_rule *rule);
71 void nft_flow_rule_destroy(struct nft_flow_rule *flow);
72 int nft_flow_rule_offload_commit(struct net *net);
74 #define NFT_OFFLOAD_MATCH(__key, __base, __field, __len, __reg) \
75 (__reg)->base_offset = \
76 offsetof(struct nft_flow_key, __base); \
78 offsetof(struct nft_flow_key, __base.__field); \
79 (__reg)->len = __len; \
80 (__reg)->key = __key; \
82 #define NFT_OFFLOAD_MATCH_EXACT(__key, __base, __field, __len, __reg) \
83 NFT_OFFLOAD_MATCH(__key, __base, __field, __len, __reg) \
84 memset(&(__reg)->mask, 0xff, (__reg)->len);
86 int nft_chain_offload_priority(struct nft_base_chain *basechain);
88 int nft_offload_init(void);
89 void nft_offload_exit(void);