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c15952dc AS |
1 | #ifndef _UAPI__LINUX_BPF_COMMON_H__ |
2 | #define _UAPI__LINUX_BPF_COMMON_H__ | |
3 | ||
4 | /* Instruction classes */ | |
5 | #define BPF_CLASS(code) ((code) & 0x07) | |
6 | #define BPF_LD 0x00 | |
7 | #define BPF_LDX 0x01 | |
8 | #define BPF_ST 0x02 | |
9 | #define BPF_STX 0x03 | |
10 | #define BPF_ALU 0x04 | |
11 | #define BPF_JMP 0x05 | |
12 | #define BPF_RET 0x06 | |
13 | #define BPF_MISC 0x07 | |
14 | ||
15 | /* ld/ldx fields */ | |
16 | #define BPF_SIZE(code) ((code) & 0x18) | |
17 | #define BPF_W 0x00 | |
18 | #define BPF_H 0x08 | |
19 | #define BPF_B 0x10 | |
20 | #define BPF_MODE(code) ((code) & 0xe0) | |
21 | #define BPF_IMM 0x00 | |
22 | #define BPF_ABS 0x20 | |
23 | #define BPF_IND 0x40 | |
24 | #define BPF_MEM 0x60 | |
25 | #define BPF_LEN 0x80 | |
26 | #define BPF_MSH 0xa0 | |
27 | ||
28 | /* alu/jmp fields */ | |
29 | #define BPF_OP(code) ((code) & 0xf0) | |
30 | #define BPF_ADD 0x00 | |
31 | #define BPF_SUB 0x10 | |
32 | #define BPF_MUL 0x20 | |
33 | #define BPF_DIV 0x30 | |
34 | #define BPF_OR 0x40 | |
35 | #define BPF_AND 0x50 | |
36 | #define BPF_LSH 0x60 | |
37 | #define BPF_RSH 0x70 | |
38 | #define BPF_NEG 0x80 | |
39 | #define BPF_MOD 0x90 | |
40 | #define BPF_XOR 0xa0 | |
41 | ||
42 | #define BPF_JA 0x00 | |
43 | #define BPF_JEQ 0x10 | |
44 | #define BPF_JGT 0x20 | |
45 | #define BPF_JGE 0x30 | |
46 | #define BPF_JSET 0x40 | |
47 | #define BPF_SRC(code) ((code) & 0x08) | |
48 | #define BPF_K 0x00 | |
49 | #define BPF_X 0x08 | |
50 | ||
51 | #ifndef BPF_MAXINSNS | |
52 | #define BPF_MAXINSNS 4096 | |
53 | #endif | |
54 | ||
55 | #endif /* _UAPI__LINUX_BPF_COMMON_H__ */ |