cpp-d1064d
[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / netfilter / xt_bpf.h
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 */