1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI__LINUX_BPF_COMMON_H__
3#define _UAPI__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 /* _UAPI__LINUX_BPF_COMMON_H__ */
58