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