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 {
15 enum nft_offload_dep_type {
16 NFT_OFFLOAD_DEP_UNSPEC = 0,
17 NFT_OFFLOAD_DEP_NETWORK,
18 NFT_OFFLOAD_DEP_TRANSPORT,
21 struct nft_offload_ctx {
23 enum nft_offload_dep_type type;
27 unsigned int num_actions;
28 struct nft_offload_reg regs[NFT_REG32_15 + 1];
31 void nft_offload_set_dependency(struct nft_offload_ctx *ctx,
32 enum nft_offload_dep_type type);
33 void nft_offload_update_dependency(struct nft_offload_ctx *ctx,
34 const void *data, u32 len);
37 struct flow_dissector_key_basic basic;
39 struct flow_dissector_key_ipv4_addrs ipv4;
40 struct flow_dissector_key_ipv6_addrs ipv6;
42 struct flow_dissector_key_ports tp;
43 struct flow_dissector_key_ip ip;
44 struct flow_dissector_key_vlan vlan;
45 struct flow_dissector_key_eth_addrs eth_addrs;
46 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
48 struct nft_flow_match {
49 struct flow_dissector dissector;
50 struct nft_flow_key key;
51 struct nft_flow_key mask;
54 struct nft_flow_rule {
56 struct nft_flow_match match;
57 struct flow_rule *rule;
60 #define NFT_OFFLOAD_F_ACTION (1 << 0)
63 struct nft_flow_rule *nft_flow_rule_create(const struct nft_rule *rule);
64 void nft_flow_rule_destroy(struct nft_flow_rule *flow);
65 int nft_flow_rule_offload_commit(struct net *net);
67 #define NFT_OFFLOAD_MATCH(__key, __base, __field, __len, __reg) \
68 (__reg)->base_offset = \
69 offsetof(struct nft_flow_key, __base); \
71 offsetof(struct nft_flow_key, __base.__field); \
72 (__reg)->len = __len; \
73 (__reg)->key = __key; \
74 memset(&(__reg)->mask, 0xff, (__reg)->len);