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;
41 struct flow_dissector_key_ipv4_addrs ipv4;
42 struct flow_dissector_key_ipv6_addrs ipv6;
44 struct flow_dissector_key_ports tp;
45 struct flow_dissector_key_ip ip;
46 struct flow_dissector_key_vlan vlan;
47 struct flow_dissector_key_eth_addrs eth_addrs;
48 struct flow_dissector_key_meta meta;
49 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
51 struct nft_flow_match {
52 struct flow_dissector dissector;
53 struct nft_flow_key key;
54 struct nft_flow_key mask;
57 struct nft_flow_rule {
59 struct nft_flow_match match;
60 struct flow_rule *rule;
63 #define NFT_OFFLOAD_F_ACTION (1 << 0)
66 struct nft_flow_rule *nft_flow_rule_create(struct net *net, const struct nft_rule *rule);
67 void nft_flow_rule_destroy(struct nft_flow_rule *flow);
68 int nft_flow_rule_offload_commit(struct net *net);
70 #define NFT_OFFLOAD_MATCH(__key, __base, __field, __len, __reg) \
71 (__reg)->base_offset = \
72 offsetof(struct nft_flow_key, __base); \
74 offsetof(struct nft_flow_key, __base.__field); \
75 (__reg)->len = __len; \
76 (__reg)->key = __key; \
77 memset(&(__reg)->mask, 0xff, (__reg)->len);
79 int nft_chain_offload_priority(struct nft_base_chain *basechain);
81 int nft_offload_init(void);
82 void nft_offload_exit(void);