LXR linux/include/uapi/linux/bpf

   1#ifndef _UAPI__LINUX_BPF_COMMON_H__
   2#define _UAPI__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 /* _UAPI__LINUX_BPF_COMMON_H__ */
  56