source: releases/0.3.0/include/regfio.h @ 148

Last change on this file since 148 was 72, checked in by tim, 18 years ago

Added QWORD type support.
  • 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) 2005-2006 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 72 2006-07-30 20:09:07Z 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#define REG_QWORD                      11 /* 64-bit little endian */
67/* XXX: Has MS defined a REG_QWORD_BE? */
68/* Not a real type in the registry */
69#define REG_KEY                        255
70
71
72#define REGF_BLOCKSIZE          0x1000
73#define REGF_ALLOC_BLOCK        0x1000
74
75/* header sizes for various records */
76
77#define REGF_HDR_SIZE           4
78#define HBIN_HDR_SIZE           4
79#define HBIN_HEADER_REC_SIZE    0x24
80#define REC_HDR_SIZE            2
81
82#define REGF_OFFSET_NONE        0xffffffff
83
84/* Flags for the vk records */
85
86#define VK_FLAG_NAME_PRESENT    0x0001
87#define VK_DATA_IN_OFFSET       0x80000000
88
89/* NK record macros */
90
91#define NK_TYPE_LINKKEY         0x0010
92#define NK_TYPE_NORMALKEY       0x0020
93#define NK_TYPE_ROOTKEY         0x002c
94
95#define HBIN_STORE_REF(x, y) { x->hbin = y; y->ref_count++ };
96/* if the count == 0; we can clean up */
97#define HBIN_REMOVE_REF(x, y){ x->hbin = NULL; y->ref_count-- };
98
99
100/* HBIN block */
101struct regf_hbin;
102typedef struct regf_hbin {
103  struct regf_hbin* prev;
104  struct regf_hbin* next;
105  uint32 file_off;       /* my offset in the registry file */
106  uint32 free_off;       /* offset to free space within the hbin record */
107  uint32 free_size;      /* amount of data left in the block */
108  int    ref_count;      /* how many active records are pointing to this
109                          * block (not used currently)
110                          */
111       
112  uint8  header[HBIN_HDR_SIZE]; /* "hbin" */
113  uint32 first_hbin_off; /* offset from first hbin block */
114  uint32 block_size;     /* block size of this block is
115                          * usually a multiple of 4096Kb
116                          */
117  prs_struct ps;         /* data */
118  bool dirty;            /* has this hbin block been modified? */
119} REGF_HBIN;
120
121/* ??? List -- list of key offsets and hashed names for consistency */
122typedef struct {
123  uint32 nk_off;
124  uint8 keycheck[sizeof(uint32)];
125} REGF_HASH_REC;
126
127typedef struct {
128  REGF_HBIN *hbin;       /* pointer to HBIN record (in memory) containing
129                          * this nk record
130                          */
131  uint32 hbin_off;       /* offset from beginning of this hbin block */
132  uint32 rec_size;       /* ((start_offset - end_offset) & 0xfffffff8) */
133 
134  uint8 header[REC_HDR_SIZE];
135  uint16 num_keys;
136  REGF_HASH_REC *hashes;
137} REGF_LF_REC;
138
139/* Key Value */
140
141typedef struct {
142  REGF_HBIN *hbin;      /* pointer to HBIN record (in memory) containing
143                         * this nk record
144                         */
145  uint32 hbin_off;      /* offset from beginning of this hbin block */
146  uint32 rec_size;      /* ((start_offset - end_offset) & 0xfffffff8) */
147  uint32 rec_off;       /* offset stored in the value list */
148 
149  uint8  header[REC_HDR_SIZE];
150  char*  valuename;
151  uint32 data_size;
152  uint32 data_off;
153  uint8* data;
154  uint32 type;
155  uint16 flag;
156} REGF_VK_REC;
157
158
159/* Key Security */
160struct _regf_sk_rec;
161
162typedef struct _regf_sk_rec {
163  struct _regf_sk_rec *next, *prev;
164  REGF_HBIN *hbin;      /* pointer to HBIN record (in memory) containing
165                         * this nk record
166                         */
167  uint32 hbin_off;      /* offset from beginning of this hbin block */
168  uint32 rec_size;      /* ((start_offset - end_offset) & 0xfffffff8) */
169 
170  uint32 sk_off;        /* offset parsed from NK record used as a key
171                         * to lookup reference to this SK record
172                         */
173 
174  uint8  header[REC_HDR_SIZE];
175  uint32 prev_sk_off;
176  uint32 next_sk_off;
177  uint32 ref_count;
178  uint32 size;
179  SEC_DESC *sec_desc;
180} REGF_SK_REC;
181
182/* Key Name */ 
183
184typedef struct {
185  REGF_HBIN *hbin;      /* pointer to HBIN record (in memory) containing
186                         * this nk record
187                         */
188  uint32 hbin_off;      /* offset from beginning of this hbin block */
189  uint32 subkey_index;  /* index to next subkey record to return */
190  uint32 rec_size;      /* ((start_offset - end_offset) & 0xfffffff8) */
191 
192  /* header information */
193  uint8  header[REC_HDR_SIZE];
194  uint16 key_type;
195  NTTIME mtime;
196  uint32 parent_off;    /* back pointer in registry hive */
197  uint32 classname_off; 
198  char *classname;
199  char *keyname;
200 
201  /* max lengths */
202  uint32 max_bytes_subkeyname;      /* max subkey name * 2 */
203  uint32 max_bytes_subkeyclassname; /* max subkey classname length (as if) */
204  uint32 max_bytes_valuename;       /* max valuename * 2 */
205  uint32 max_bytes_value;           /* max value data size */
206 
207  /* unknowns */
208  uint32 unk_index;                 /* nigel says run time index ? */
209 
210  /* children */
211  uint32 num_subkeys;
212  uint32 subkeys_off;   /* hash records that point to NK records */     
213  uint32 num_values;
214  uint32 values_off;    /* value lists which point to VK records */
215  uint32 sk_off;        /* offset to SK record */
216 
217  /* link in the other records here */
218  REGF_LF_REC subkeys;
219  REGF_VK_REC *values;
220  REGF_SK_REC *sec_desc;
221       
222} REGF_NK_REC;
223
224/* REGF block */
225 
226typedef struct {
227  /* run time information */
228  int fd;         /* file descriptor */
229  int open_flags; /* flags passed to the open() call */
230  void *mem_ctx;  /* memory context for run-time file access information */
231  REGF_HBIN *block_list; /* list of open hbin blocks */
232 
233  /* file format information */
234 
235  uint8  header[REGF_HDR_SIZE]; /* "regf" */
236  uint32 data_offset;           /* offset to record in the first (or any?)
237                                 * hbin block
238                                 */
239  uint32 last_block;            /* offset to last hbin block in file */
240  uint32 checksum;              /* XOR of bytes 0x0000 - 0x01FB */
241  NTTIME mtime;
242 
243  REGF_SK_REC *sec_desc_list;   /* list of security descriptors referenced
244                                 * by NK records
245                                 */
246 
247  /* unknowns used to simply writing */
248  uint32 unknown1;
249  uint32 unknown2;
250  uint32 unknown3;
251  uint32 unknown4;
252  uint32 unknown5;
253  uint32 unknown6;
254} REGF_FILE;
255
256
257/******************************************************************************/
258/* Function Declarations */
259
260const char*   regfio_type_val2str(unsigned int val);
261int           regfio_type_str2val(const char* str);
262
263char*         regfio_get_sacl(SEC_DESC *sec_desc);
264char*         regfio_get_dacl(SEC_DESC *sec_desc);
265char*         regfio_get_owner(SEC_DESC *sec_desc);
266char*         regfio_get_group(SEC_DESC *sec_desc);
267
268REGF_FILE*    regfio_open( const char *filename );
269int           regfio_close( REGF_FILE *r );
270
271REGF_NK_REC*  regfio_rootkey( REGF_FILE *file );
272REGF_NK_REC*  regfio_fetch_subkey( REGF_FILE *file, REGF_NK_REC *nk );
273
274#endif  /* _REGFIO_H */
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