1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | #ifndef __LINUX_BPF_COMMON_H__ |
3 | #define __LINUX_BPF_COMMON_H__ |
4 | |
5 | /* Instruction classes */ |
6 | #define BPF_CLASS(code) ((code) & 0x07) |
7 | #define BPF_LD 0x00 |
8 | #define BPF_LDX 0x01 |
9 | #define BPF_ST 0x02 |
10 | #define BPF_STX 0x03 |
11 | #define BPF_ALU 0x04 |
12 | #define BPF_JMP 0x05 |
13 | #define BPF_RET 0x06 |
14 | #define BPF_MISC 0x07 |
15 | |
16 | /* ld/ldx fields */ |
17 | #define BPF_SIZE(code) ((code) & 0x18) |
18 | #define BPF_W 0x00 /* 32-bit */ |
19 | #define BPF_H 0x08 /* 16-bit */ |
20 | #define BPF_B 0x10 /* 8-bit */ |
21 | /* eBPF BPF_DW 0x18 64-bit */ |
22 | #define BPF_MODE(code) ((code) & 0xe0) |
23 | #define BPF_IMM 0x00 |
24 | #define BPF_ABS 0x20 |
25 | #define BPF_IND 0x40 |
26 | #define BPF_MEM 0x60 |
27 | #define BPF_LEN 0x80 |
28 | #define BPF_MSH 0xa0 |
29 | |
30 | /* alu/jmp fields */ |
31 | #define BPF_OP(code) ((code) & 0xf0) |
32 | #define BPF_ADD 0x00 |
33 | #define BPF_SUB 0x10 |
34 | #define BPF_MUL 0x20 |
35 | #define BPF_DIV 0x30 |
36 | #define BPF_OR 0x40 |
37 | #define BPF_AND 0x50 |
38 | #define BPF_LSH 0x60 |
39 | #define BPF_RSH 0x70 |
40 | #define BPF_NEG 0x80 |
41 | #define BPF_MOD 0x90 |
42 | #define BPF_XOR 0xa0 |
43 | |
44 | #define BPF_JA 0x00 |
45 | #define BPF_JEQ 0x10 |
46 | #define BPF_JGT 0x20 |
47 | #define BPF_JGE 0x30 |
48 | #define BPF_JSET 0x40 |
49 | #define BPF_SRC(code) ((code) & 0x08) |
50 | #define BPF_K 0x00 |
51 | #define BPF_X 0x08 |
52 | |
53 | #ifndef BPF_MAXINSNS |
54 | #define BPF_MAXINSNS 4096 |
55 | #endif |
56 | |
57 | #endif /* __LINUX_BPF_COMMON_H__ */ |
58 | |