| 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__ */ |