| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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| 2 | #ifndef _NFNL_HOOK_H_ |
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| 3 | #define _NFNL_HOOK_H_ |
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| 4 | |
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| 5 | enum nfnl_hook_msg_types { |
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| 6 | NFNL_MSG_HOOK_GET, |
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| 7 | NFNL_MSG_HOOK_MAX, |
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| 8 | }; |
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| 9 | |
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| 10 | /** |
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| 11 | * enum nfnl_hook_attributes - netfilter hook netlink attributes |
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| 12 | * |
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| 13 | * @NFNLA_HOOK_HOOKNUM: netfilter hook number (NLA_U32) |
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| 14 | * @NFNLA_HOOK_PRIORITY: netfilter hook priority (NLA_U32) |
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| 15 | * @NFNLA_HOOK_DEV: netdevice name (NLA_STRING) |
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| 16 | * @NFNLA_HOOK_FUNCTION_NAME: hook function name (NLA_STRING) |
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| 17 | * @NFNLA_HOOK_MODULE_NAME: kernel module that registered this hook (NLA_STRING) |
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| 18 | * @NFNLA_HOOK_CHAIN_INFO: basechain hook metadata (NLA_NESTED) |
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| 19 | */ |
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| 20 | enum nfnl_hook_attributes { |
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| 21 | NFNLA_HOOK_UNSPEC, |
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| 22 | NFNLA_HOOK_HOOKNUM, |
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| 23 | NFNLA_HOOK_PRIORITY, |
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| 24 | NFNLA_HOOK_DEV, |
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| 25 | NFNLA_HOOK_FUNCTION_NAME, |
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| 26 | NFNLA_HOOK_MODULE_NAME, |
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| 27 | NFNLA_HOOK_CHAIN_INFO, |
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| 28 | __NFNLA_HOOK_MAX |
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| 29 | }; |
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| 30 | #define NFNLA_HOOK_MAX (__NFNLA_HOOK_MAX - 1) |
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| 31 | |
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| 32 | /** |
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| 33 | * enum nfnl_hook_chain_info_attributes - chain description |
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| 34 | * |
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| 35 | * @NFNLA_HOOK_INFO_DESC: nft chain and table name (NLA_NESTED) |
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| 36 | * @NFNLA_HOOK_INFO_TYPE: chain type (enum nfnl_hook_chaintype) (NLA_U32) |
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| 37 | * |
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| 38 | * NFNLA_HOOK_INFO_DESC depends on NFNLA_HOOK_INFO_TYPE value: |
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| 39 | * NFNL_HOOK_TYPE_NFTABLES: enum nft_table_attributes |
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| 40 | * NFNL_HOOK_TYPE_BPF: enum nfnl_hook_bpf_attributes |
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| 41 | */ |
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| 42 | enum nfnl_hook_chain_info_attributes { |
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| 43 | NFNLA_HOOK_INFO_UNSPEC, |
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| 44 | NFNLA_HOOK_INFO_DESC, |
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| 45 | NFNLA_HOOK_INFO_TYPE, |
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| 46 | __NFNLA_HOOK_INFO_MAX, |
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| 47 | }; |
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| 48 | #define NFNLA_HOOK_INFO_MAX (__NFNLA_HOOK_INFO_MAX - 1) |
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| 49 | |
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| 50 | enum nfnl_hook_chain_desc_attributes { |
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| 51 | NFNLA_CHAIN_UNSPEC, |
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| 52 | NFNLA_CHAIN_TABLE, |
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| 53 | NFNLA_CHAIN_FAMILY, |
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| 54 | NFNLA_CHAIN_NAME, |
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| 55 | __NFNLA_CHAIN_MAX, |
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| 56 | }; |
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| 57 | #define NFNLA_CHAIN_MAX (__NFNLA_CHAIN_MAX - 1) |
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| 58 | |
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| 59 | /** |
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| 60 | * enum nfnl_hook_chaintype - chain type |
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| 61 | * |
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| 62 | * @NFNL_HOOK_TYPE_NFTABLES: nf_tables base chain |
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| 63 | * @NFNL_HOOK_TYPE_BPF: bpf program |
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| 64 | */ |
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| 65 | enum nfnl_hook_chaintype { |
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| 66 | NFNL_HOOK_TYPE_NFTABLES = 0x1, |
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| 67 | NFNL_HOOK_TYPE_BPF, |
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| 68 | }; |
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| 69 | |
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| 70 | /** |
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| 71 | * enum nfnl_hook_bpf_attributes - bpf prog description |
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| 72 | * |
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| 73 | * @NFNLA_HOOK_BPF_ID: bpf program id (NLA_U32) |
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| 74 | */ |
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| 75 | enum nfnl_hook_bpf_attributes { |
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| 76 | NFNLA_HOOK_BPF_UNSPEC, |
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| 77 | NFNLA_HOOK_BPF_ID, |
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| 78 | __NFNLA_HOOK_BPF_MAX, |
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| 79 | }; |
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| 80 | #define NFNLA_HOOK_BPF_MAX (__NFNLA_HOOK_BPF_MAX - 1) |
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| 81 | |
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| 82 | #endif /* _NFNL_HOOK_H */ |
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| 83 | |
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