x_tables.h revision 96c1db7b9d601c31d103389cac074a6cce0d7633 
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 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _UAPI_X_TABLES_H
20#define _UAPI_X_TABLES_H
21#include <linux/kernel.h>
22#include <linux/types.h>
23#define XT_FUNCTION_MAXNAMELEN 30
24#define XT_EXTENSION_MAXNAMELEN 29
25#define XT_TABLE_MAXNAMELEN 32
26struct xt_entry_match {
27  union {
28    struct {
29      __u16 match_size;
30      char name[XT_EXTENSION_MAXNAMELEN];
31      __u8 revision;
32    } user;
33    struct {
34      __u16 match_size;
35      struct xt_match * match;
36    } kernel;
37    __u16 match_size;
38  } u;
39  unsigned char data[0];
40};
41struct xt_entry_target {
42  union {
43    struct {
44      __u16 target_size;
45      char name[XT_EXTENSION_MAXNAMELEN];
46      __u8 revision;
47    } user;
48    struct {
49      __u16 target_size;
50      struct xt_target * target;
51    } kernel;
52    __u16 target_size;
53  } u;
54  unsigned char data[0];
55};
56#define XT_TARGET_INIT(__name,__size) \
57{.target.u.user = {.target_size = XT_ALIGN(__size),.name = __name, }, \
58}
59struct xt_standard_target {
60  struct xt_entry_target target;
61  int verdict;
62};
63struct xt_error_target {
64  struct xt_entry_target target;
65  char errorname[XT_FUNCTION_MAXNAMELEN];
66};
67struct xt_get_revision {
68  char name[XT_EXTENSION_MAXNAMELEN];
69  __u8 revision;
70};
71#define XT_CONTINUE 0xFFFFFFFF
72#define XT_RETURN (- NF_REPEAT - 1)
73struct _xt_align {
74  __u8 u8;
75  __u16 u16;
76  __u32 u32;
77  __u64 u64;
78};
79#define XT_ALIGN(s) __ALIGN_KERNEL((s), __alignof__(struct _xt_align))
80#define XT_STANDARD_TARGET ""
81#define XT_ERROR_TARGET "ERROR"
82#define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0)
83#define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0)
84struct xt_counters {
85  __u64 pcnt, bcnt;
86};
87struct xt_counters_info {
88  char name[XT_TABLE_MAXNAMELEN];
89  unsigned int num_counters;
90  struct xt_counters counters[0];
91};
92#define XT_INV_PROTO 0x40
93#define XT_MATCH_ITERATE(type,e,fn,args...) \
94({ unsigned int __i; int __ret = 0; struct xt_entry_match * __m; for(__i = sizeof(type); __i < (e)->target_offset; __i += __m->u.match_size) { __m = (void *) e + __i; __ret = fn(__m, ##args); if(__ret != 0) break; } __ret; \
95})
96#define XT_ENTRY_ITERATE_CONTINUE(type,entries,size,n,fn,args...) \
97({ unsigned int __i, __n; int __ret = 0; type * __entry; for(__i = 0, __n = 0; __i < (size); __i += __entry->next_offset, __n ++) { __entry = (void *) (entries) + __i; if(__n < n) continue; __ret = fn(__entry, ##args); if(__ret != 0) break; } __ret; \
98})
99#define XT_ENTRY_ITERATE(type,entries,size,fn,args...) XT_ENTRY_ITERATE_CONTINUE(type, entries, size, 0, fn, args)
100#define xt_entry_foreach(pos,ehead,esize) for((pos) = (typeof(pos)) (ehead); (pos) < (typeof(pos)) ((char *) (ehead) + (esize)); (pos) = (typeof(pos)) ((char *) (pos) + (pos)->next_offset))
101#define xt_ematch_foreach(pos,entry) for((pos) = (struct xt_entry_match *) entry->elems; (pos) < (struct xt_entry_match *) ((char *) (entry) + (entry)->target_offset); (pos) = (struct xt_entry_match *) ((char *) (pos) + (pos)->u.match_size))
102#endif
103