source: releases/0.2.1/include/regfio.h@ 293

Last change on this file since 293 was 54, checked in by tim, 20 years ago

Added some verbose output

code cleanup and minor bug fixes
  • Property svn:keywords set to Id
File size: 8.0 KB
Line 
1/*
2 * Branched from Samba project, Subversion repository version #6903:
3 * http://websvn.samba.org/cgi-bin/viewcvs.cgi/trunk/source/include/regfio.h
4 *
5 * Unix SMB/CIFS implementation.
6 * Windows NT registry I/O library
7 *
8 * Copyright (C) 2005 Timothy D. Morgan
9 * Copyright (C) 2005 Gerald (Jerry) Carter
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; version 2 of the License.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 * $Id: regfio.h 54 2005-09-05 01:19:05Z tim $
25 */
26
27/************************************************************
28 * Most of this information was obtained from
29 * http://www.wednesday.demon.co.uk/dosreg.html
30 * Thanks Nigel!
31 ***********************************************************/
32
33#ifndef _REGFIO_H
34#define _REGFIO_H
35
36#include <stdlib.h>
37#include <stdio.h>
38#include <stdbool.h>
39#include <string.h>
40#include <errno.h>
41#include <time.h>
42#include <fcntl.h>
43#include <sys/stat.h>
44#include <sys/types.h>
45#include <unistd.h>
46#include <assert.h>
47
48#include "smb_deps.h"
49
50/******************************************************************************/
51/* Macros */
52
53/* Registry data types */
54#define REG_NONE 0
55#define REG_SZ 1
56#define REG_EXPAND_SZ 2
57#define REG_BINARY 3
58#define REG_DWORD 4
59#define REG_DWORD_LE 4 /* DWORD, little endian */
60#define REG_DWORD_BE 5 /* DWORD, big endian */
61#define REG_LINK 6
62#define REG_MULTI_SZ 7
63#define REG_RESOURCE_LIST 8
64#define REG_FULL_RESOURCE_DESCRIPTOR 9
65#define REG_RESOURCE_REQUIREMENTS_LIST 10
66/* Not a real type in the registry */
67#define REG_KEY 255
68
69typedef struct _val_str {
70 unsigned int val;
71 const char * str;
72} VAL_STR;
73
74#define REGF_BLOCKSIZE 0x1000
75#define REGF_ALLOC_BLOCK 0x1000
76
77/* header sizes for various records */
78
79#define REGF_HDR_SIZE 4
80#define HBIN_HDR_SIZE 4
81#define HBIN_HEADER_REC_SIZE 0x24
82#define REC_HDR_SIZE 2
83
84#define REGF_OFFSET_NONE 0xffffffff
85
86/* Flags for the vk records */
87
88#define VK_FLAG_NAME_PRESENT 0x0001
89#define VK_DATA_IN_OFFSET 0x80000000
90
91/* NK record macros */
92
93#define NK_TYPE_LINKKEY 0x0010
94#define NK_TYPE_NORMALKEY 0x0020
95#define NK_TYPE_ROOTKEY 0x002c
96
97#define HBIN_STORE_REF(x, y) { x->hbin = y; y->ref_count++ };
98/* if the count == 0; we can clean up */
99#define HBIN_REMOVE_REF(x, y){ x->hbin = NULL; y->ref_count-- };
100
101
102/* HBIN block */
103struct regf_hbin;
104typedef struct regf_hbin {
105 struct regf_hbin* prev;
106 struct regf_hbin* next;
107 uint32 file_off; /* my offset in the registry file */
108 uint32 free_off; /* offset to free space within the hbin record */
109 uint32 free_size; /* amount of data left in the block */
110 int ref_count; /* how many active records are pointing to this
111 * block (not used currently)
112 */
113
114 uint8 header[HBIN_HDR_SIZE]; /* "hbin" */
115 uint32 first_hbin_off; /* offset from first hbin block */
116 uint32 block_size; /* block size of this block is
117 * usually a multiple of 4096Kb
118 */
119 prs_struct ps; /* data */
120 bool dirty; /* has this hbin block been modified? */
121} REGF_HBIN;
122
123/* ??? List -- list of key offsets and hashed names for consistency */
124typedef struct {
125 uint32 nk_off;
126 uint8 keycheck[sizeof(uint32)];
127} REGF_HASH_REC;
128
129typedef struct {
130 REGF_HBIN *hbin; /* pointer to HBIN record (in memory) containing
131 * this nk record
132 */
133 uint32 hbin_off; /* offset from beginning of this hbin block */
134 uint32 rec_size; /* ((start_offset - end_offset) & 0xfffffff8) */
135
136 uint8 header[REC_HDR_SIZE];
137 uint16 num_keys;
138 REGF_HASH_REC *hashes;
139} REGF_LF_REC;
140
141/* Key Value */
142
143typedef struct {
144 REGF_HBIN *hbin; /* pointer to HBIN record (in memory) containing
145 * this nk record
146 */
147 uint32 hbin_off; /* offset from beginning of this hbin block */
148 uint32 rec_size; /* ((start_offset - end_offset) & 0xfffffff8) */
149 uint32 rec_off; /* offset stored in the value list */
150
151 uint8 header[REC_HDR_SIZE];
152 char* valuename;
153 uint32 data_size;
154 uint32 data_off;
155 uint8* data;
156 uint32 type;
157 uint16 flag;
158} REGF_VK_REC;
159
160
161/* Key Security */
162struct _regf_sk_rec;
163
164typedef struct _regf_sk_rec {
165 struct _regf_sk_rec *next, *prev;
166 REGF_HBIN *hbin; /* pointer to HBIN record (in memory) containing
167 * this nk record
168 */
169 uint32 hbin_off; /* offset from beginning of this hbin block */
170 uint32 rec_size; /* ((start_offset - end_offset) & 0xfffffff8) */
171
172 uint32 sk_off; /* offset parsed from NK record used as a key
173 * to lookup reference to this SK record
174 */
175
176 uint8 header[REC_HDR_SIZE];
177 uint32 prev_sk_off;
178 uint32 next_sk_off;
179 uint32 ref_count;
180 uint32 size;
181 SEC_DESC *sec_desc;
182} REGF_SK_REC;
183
184/* Key Name */
185
186typedef struct {
187 REGF_HBIN *hbin; /* pointer to HBIN record (in memory) containing
188 * this nk record
189 */
190 uint32 hbin_off; /* offset from beginning of this hbin block */
191 uint32 subkey_index; /* index to next subkey record to return */
192 uint32 rec_size; /* ((start_offset - end_offset) & 0xfffffff8) */
193
194 /* header information */
195 uint8 header[REC_HDR_SIZE];
196 uint16 key_type;
197 NTTIME mtime;
198 uint32 parent_off; /* back pointer in registry hive */
199 uint32 classname_off;
200 char *classname;
201 char *keyname;
202
203 /* max lengths */
204 uint32 max_bytes_subkeyname; /* max subkey name * 2 */
205 uint32 max_bytes_subkeyclassname; /* max subkey classname length (as if) */
206 uint32 max_bytes_valuename; /* max valuename * 2 */
207 uint32 max_bytes_value; /* max value data size */
208
209 /* unknowns */
210 uint32 unk_index; /* nigel says run time index ? */
211
212 /* children */
213 uint32 num_subkeys;
214 uint32 subkeys_off; /* hash records that point to NK records */
215 uint32 num_values;
216 uint32 values_off; /* value lists which point to VK records */
217 uint32 sk_off; /* offset to SK record */
218
219 /* link in the other records here */
220 REGF_LF_REC subkeys;
221 REGF_VK_REC *values;
222 REGF_SK_REC *sec_desc;
223
224} REGF_NK_REC;
225
226/* REGF block */
227
228typedef struct {
229 /* run time information */
230 int fd; /* file descriptor */
231 int open_flags; /* flags passed to the open() call */
232 void *mem_ctx; /* memory context for run-time file access information */
233 REGF_HBIN *block_list; /* list of open hbin blocks */
234
235 /* file format information */
236
237 uint8 header[REGF_HDR_SIZE]; /* "regf" */
238 uint32 data_offset; /* offset to record in the first (or any?)
239 * hbin block
240 */
241 uint32 last_block; /* offset to last hbin block in file */
242 uint32 checksum; /* XOR of bytes 0x0000 - 0x01FB */
243 NTTIME mtime;
244
245 REGF_SK_REC *sec_desc_list; /* list of security descriptors referenced
246 * by NK records
247 */
248
249 /* unknowns used to simply writing */
250 uint32 unknown1;
251 uint32 unknown2;
252 uint32 unknown3;
253 uint32 unknown4;
254 uint32 unknown5;
255 uint32 unknown6;
256} REGF_FILE;
257
258
259/******************************************************************************/
260/* Function Declarations */
261
262const char* regfio_type_val2str(unsigned int val);
263int regfio_type_str2val(const char* str);
264
265char* regfio_get_sacl(SEC_DESC *sec_desc);
266char* regfio_get_dacl(SEC_DESC *sec_desc);
267char* regfio_get_owner(SEC_DESC *sec_desc);
268char* regfio_get_group(SEC_DESC *sec_desc);
269
270REGF_FILE* regfio_open( const char *filename );
271int regfio_close( REGF_FILE *r );
272
273REGF_NK_REC* regfio_rootkey( REGF_FILE *file );
274REGF_NK_REC* regfio_fetch_subkey( REGF_FILE *file, REGF_NK_REC *nk );
275
276#endif /* _REGFIO_H */
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