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| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
|---|---|
| 2 | #ifndef _XT_BPF_H |
| 3 | #define _XT_BPF_H |
| 4 | |
| 5 | #include <linux/filter.h> |
| 6 | #include <linux/limits.h> |
| 7 | #include <linux/types.h> |
| 8 | |
| 9 | #define XT_BPF_MAX_NUM_INSTR 64 |
| 10 | #define XT_BPF_PATH_MAX (XT_BPF_MAX_NUM_INSTR * sizeof(struct sock_filter)) |
| 11 | |
| 12 | struct bpf_prog; |
| 13 | |
| 14 | struct xt_bpf_info { |
| 15 | __u16 bpf_program_num_elem; |
| 16 | struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR]; |
| 17 | |
| 18 | /* only used in the kernel */ |
| 19 | struct bpf_prog *filter __attribute__((aligned(8))); |
| 20 | }; |
| 21 | |
| 22 | enum xt_bpf_modes { |
| 23 | XT_BPF_MODE_BYTECODE, |
| 24 | XT_BPF_MODE_FD_PINNED, |
| 25 | XT_BPF_MODE_FD_ELF, |
| 26 | }; |
| 27 | #define XT_BPF_MODE_PATH_PINNED XT_BPF_MODE_FD_PINNED |
| 28 | |
| 29 | struct xt_bpf_info_v1 { |
| 30 | __u16 mode; |
| 31 | __u16 bpf_program_num_elem; |
| 32 | __s32 fd; |
| 33 | union { |
| 34 | struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR]; |
| 35 | char path[XT_BPF_PATH_MAX]; |
| 36 | }; |
| 37 | |
| 38 | /* only used in the kernel */ |
| 39 | struct bpf_prog *filter __attribute__((aligned(8))); |
| 40 | }; |
| 41 | |
| 42 | #endif /*_XT_BPF_H */ |
| 43 |
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