1/**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12#ifndef __LINUX_FILTER_H__ 13#define __LINUX_FILTER_H__ 14 15#include <linux/compiler.h> 16#include <linux/types.h> 17 18#define BPF_MAJOR_VERSION 1 19#define BPF_MINOR_VERSION 1 20 21struct sock_filter 22{ 23 __u16 code; 24 __u8 jt; 25 __u8 jf; 26 __u32 k; 27}; 28 29struct sock_fprog 30{ 31 unsigned short len; 32 struct sock_filter __user *filter; 33}; 34 35#define BPF_CLASS(code) ((code) & 0x07) 36#define BPF_LD 0x00 37#define BPF_LDX 0x01 38#define BPF_ST 0x02 39#define BPF_STX 0x03 40#define BPF_ALU 0x04 41#define BPF_JMP 0x05 42#define BPF_RET 0x06 43#define BPF_MISC 0x07 44 45#define BPF_SIZE(code) ((code) & 0x18) 46#define BPF_W 0x00 47#define BPF_H 0x08 48#define BPF_B 0x10 49#define BPF_MODE(code) ((code) & 0xe0) 50#define BPF_IMM 0x00 51#define BPF_ABS 0x20 52#define BPF_IND 0x40 53#define BPF_MEM 0x60 54#define BPF_LEN 0x80 55#define BPF_MSH 0xa0 56 57#define BPF_OP(code) ((code) & 0xf0) 58#define BPF_ADD 0x00 59#define BPF_SUB 0x10 60#define BPF_MUL 0x20 61#define BPF_DIV 0x30 62#define BPF_OR 0x40 63#define BPF_AND 0x50 64#define BPF_LSH 0x60 65#define BPF_RSH 0x70 66#define BPF_NEG 0x80 67#define BPF_JA 0x00 68#define BPF_JEQ 0x10 69#define BPF_JGT 0x20 70#define BPF_JGE 0x30 71#define BPF_JSET 0x40 72#define BPF_SRC(code) ((code) & 0x08) 73#define BPF_K 0x00 74#define BPF_X 0x08 75 76#define BPF_RVAL(code) ((code) & 0x18) 77#define BPF_A 0x10 78 79#define BPF_MISCOP(code) ((code) & 0xf8) 80#define BPF_TAX 0x00 81#define BPF_TXA 0x80 82 83#ifndef BPF_MAXINSNS 84#define BPF_MAXINSNS 4096 85#endif 86 87#ifndef BPF_STMT 88#define BPF_STMT(code, k) { (unsigned short)(code), 0, 0, k } 89#endif 90#ifndef BPF_JUMP 91#define BPF_JUMP(code, k, jt, jf) { (unsigned short)(code), jt, jf, k } 92#endif 93 94#define BPF_MEMWORDS 16 95 96#define SKF_AD_OFF (-0x1000) 97#define SKF_AD_PROTOCOL 0 98#define SKF_AD_PKTTYPE 4 99#define SKF_AD_IFINDEX 8 100#define SKF_AD_MAX 12 101#define SKF_NET_OFF (-0x100000) 102#define SKF_LL_OFF (-0x200000) 103 104#endif 105