1#ifndef __LINUX_BPF_COMMON_H__ 2#define __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 /* __LINUX_BPF_COMMON_H__ */ 56