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 26 struct 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 }; 41 struct 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 } 59 struct xt_standard_target { 60 struct xt_entry_target target; 61 int verdict; 62 }; 63 struct xt_error_target { 64 struct xt_entry_target target; 65 char errorname[XT_FUNCTION_MAXNAMELEN]; 66 }; 67 struct 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) 73 struct _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) 84 struct xt_counters { 85 __u64 pcnt, bcnt; 86 }; 87 struct 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
