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s3:registry: use dbwrap_purge_bystring instead of dbwrap_delete_bystring
[Samba.git] / source3 / registry / reg_backend_db.c
blobbdfe7d2e0b26d6a5b08fb0f1eab5b69ad43fd117
1 /*
2 * Unix SMB/CIFS implementation.
3 * Virtual Windows Registry Layer
4 * Copyright (C) Gerald Carter 2002-2005
5 * Copyright (C) Michael Adam 2007-2011
6 * Copyright (C) Gregor Beck 2011
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 */
21
22 /* Implementation of internal registry database functions. */
23
24 #include "includes.h"
25 #include "system/filesys.h"
26 #include "registry.h"
27 #include "reg_db.h"
28 #include "reg_util_internal.h"
29 #include "reg_parse_internal.h"
30 #include "reg_backend_db.h"
31 #include "reg_objects.h"
32 #include "nt_printing.h"
33 #include "util_tdb.h"
34 #include "dbwrap/dbwrap.h"
35 #include "dbwrap/dbwrap_open.h"
36 #include "../libcli/security/secdesc.h"
37
38 #undef DBGC_CLASS
39 #define DBGC_CLASS DBGC_REGISTRY
40
41 #define REGDB_VERSION_KEYNAME "INFO/version"
42
43 static struct db_context *regdb = NULL;
44 static int regdb_refcount;
45
46 static bool regdb_key_exists(struct db_context *db, const char *key);
47 static WERROR regdb_fetch_keys_internal(struct db_context *db, const char *key,
48 struct regsubkey_ctr *ctr);
49 static bool regdb_store_keys_internal(struct db_context *db, const char *key,
50 struct regsubkey_ctr *ctr);
51 static int regdb_fetch_values_internal(struct db_context *db, const char* key,
52 struct regval_ctr *values);
53 static NTSTATUS regdb_store_values_internal(struct db_context *db, const char *key,
54 struct regval_ctr *values);
55 static WERROR regdb_store_subkey_list(struct db_context *db, const char *parent,
56 const char *key);
57
58 static WERROR regdb_create_basekey(struct db_context *db, const char *key);
59 static WERROR regdb_create_subkey_internal(struct db_context *db,
60 const char *key,
61 const char *subkey);
62
63
64 struct regdb_trans_ctx {
65 NTSTATUS (*action)(struct db_context *, void *);
66 void *private_data;
67 };
68
69 static NTSTATUS regdb_trans_do_action(struct db_context *db, void *private_data)
70 {
71 NTSTATUS status;
72 int32_t version_id;
73 struct regdb_trans_ctx *ctx = (struct regdb_trans_ctx *)private_data;
74
75 status = dbwrap_fetch_int32_bystring(db, REGDB_VERSION_KEYNAME,
76 &version_id);
77
78 if (!NT_STATUS_IS_OK(status)) {
79 DEBUG(0, ("ERROR: could not fetch registry db version: %s. "
80 "Denying access.\n", nt_errstr(status)));
81 return NT_STATUS_ACCESS_DENIED;
82 }
83
84 if (version_id != REGDB_CODE_VERSION) {
85 DEBUG(0, ("ERROR: changed registry version %d found while "
86 "trying to write to the registry. Version %d "
87 "expected. Denying access.\n",
88 version_id, REGDB_CODE_VERSION));
89 return NT_STATUS_ACCESS_DENIED;
90 }
91
92 status = ctx->action(db, ctx->private_data);
93 return status;
94 }
95
96 static WERROR regdb_trans_do(struct db_context *db,
97 NTSTATUS (*action)(struct db_context *, void *),
98 void *private_data)
99 {
100 NTSTATUS status;
101 struct regdb_trans_ctx ctx;
102
103
104 ctx.action = action;
105 ctx.private_data = private_data;
106
107 status = dbwrap_trans_do(db, regdb_trans_do_action, &ctx);
108
109 return ntstatus_to_werror(status);
110 }
111
112 /* List the deepest path into the registry. All part components will be created.*/
113
114 /* If you want to have a part of the path controlled by the tdb and part by
115 a virtual registry db (e.g. printing), then you have to list the deepest path.
116 For example,"HKLM/SOFTWARE/Microsoft/Windows NT/CurrentVersion/Print"
117 allows the reg_db backend to handle everything up to
118 "HKLM/SOFTWARE/Microsoft/Windows NT/CurrentVersion" and then we'll hook
119 the reg_printing backend onto the last component of the path (see
120 KEY_PRINTING_2K in include/rpc_reg.h) --jerry */
121
122 static const char *builtin_registry_paths[] = {
123 KEY_PRINTING_2K,
124 KEY_PRINTING_PORTS,
125 KEY_PRINTING,
126 KEY_PRINTING "\\Forms",
127 KEY_PRINTING "\\Printers",
128 KEY_PRINTING "\\Environments\\Windows NT x86\\Print Processors\\winprint",
129 KEY_SHARES,
130 KEY_EVENTLOG,
131 KEY_SMBCONF,
132 KEY_PERFLIB,
133 KEY_PERFLIB_009,
134 KEY_GROUP_POLICY,
135 KEY_SAMBA_GROUP_POLICY,
136 KEY_GP_MACHINE_POLICY,
137 KEY_GP_MACHINE_WIN_POLICY,
138 KEY_HKCU,
139 KEY_GP_USER_POLICY,
140 KEY_GP_USER_WIN_POLICY,
141 "HKLM\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\GPExtensions",
142 "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Print\\Monitors",
143 KEY_PROD_OPTIONS,
144 "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\DefaultUserConfiguration",
145 KEY_TCPIP_PARAMS,
146 KEY_NETLOGON_PARAMS,
147 KEY_HKU,
148 KEY_HKCR,
149 KEY_HKPD,
150 KEY_HKPT,
151 NULL };
152
153 struct builtin_regkey_value {
154 const char *path;
155 const char *valuename;
156 uint32_t type;
157 union {
158 const char *string;
159 uint32_t dw_value;
160 } data;
161 };
162
163 static struct builtin_regkey_value builtin_registry_values[] = {
164 { KEY_PRINTING_PORTS,
165 SAMBA_PRINTER_PORT_NAME, REG_SZ, { "" } },
166 { KEY_PRINTING_2K,
167 "DefaultSpoolDirectory", REG_SZ, { "C:\\Windows\\System32\\Spool\\Printers" } },
168 { KEY_EVENTLOG,
169 "DisplayName", REG_SZ, { "Event Log" } },
170 { KEY_EVENTLOG,
171 "ErrorControl", REG_DWORD, { (char*)0x00000001 } },
172 { NULL, NULL, 0, { NULL } }
173 };
174
175 static WERROR create_key_recursive(struct db_context *db,
176 char *path,
177 const char *subkey)
178 {
179 WERROR werr;
180 char *p;
181
182 if (subkey == NULL) {
183 return WERR_INVALID_PARAM;
184 }
185
186 if (path == NULL) {
187 return regdb_create_basekey(db, subkey);
188 }
189
190 p = strrchr_m(path, '\\');
191
192 if (p == NULL) {
193 werr = create_key_recursive(db, NULL, path);
194 } else {
195 *p = '\0';
196 werr = create_key_recursive(db, path, p+1);
197 *p = '\\';
198 }
199
200 if (!W_ERROR_IS_OK(werr)) {
201 goto done;
202 }
203
204 werr = regdb_create_subkey_internal(db, path, subkey);
205
206 done:
207 return werr;
208 }
209
210 /**
211 * Initialize a key in the registry:
212 * create each component key of the specified path.
213 */
214 static WERROR init_registry_key_internal(struct db_context *db,
215 const char *add_path)
216 {
217 char *subkey, *key;
218 WERROR werr;
219 TALLOC_CTX *frame = talloc_stackframe();
220
221 if (add_path == NULL) {
222 werr = WERR_INVALID_PARAM;
223 goto done;
224 }
225
226 key = talloc_strdup(frame, add_path);
227
228 subkey = strrchr_m(key, '\\');
229 if (subkey == NULL) {
230 subkey = key;
231 key = NULL;
232 } else {
233 *subkey = '\0';
234 subkey++;
235 }
236
237 werr = create_key_recursive(db, key, subkey);
238
239 done:
240 talloc_free(frame);
241 return werr;
242 }
243
244 struct init_registry_key_context {
245 const char *add_path;
246 };
247
248 static NTSTATUS init_registry_key_action(struct db_context *db,
249 void *private_data)
250 {
251 struct init_registry_key_context *init_ctx =
252 (struct init_registry_key_context *)private_data;
253
254 return werror_to_ntstatus(init_registry_key_internal(
255 db, init_ctx->add_path));
256 }
257
258 /**
259 * Initialize a key in the registry:
260 * create each component key of the specified path,
261 * wrapped in one db transaction.
262 */
263 WERROR init_registry_key(const char *add_path)
264 {
265 struct init_registry_key_context init_ctx;
266
267 if (regdb_key_exists(regdb, add_path)) {
268 return WERR_OK;
269 }
270
271 init_ctx.add_path = add_path;
272
273 return regdb_trans_do(regdb,
274 init_registry_key_action,
275 &init_ctx);
276 }
277
278 /***********************************************************************
279 Open the registry data in the tdb
280 ***********************************************************************/
281
282 static void regdb_ctr_add_value(struct regval_ctr *ctr,
283 struct builtin_regkey_value *value)
284 {
285 switch(value->type) {
286 case REG_DWORD:
287 regval_ctr_addvalue(ctr, value->valuename, REG_DWORD,
288 (uint8_t *)&value->data.dw_value,
289 sizeof(uint32_t));
290 break;
291
292 case REG_SZ:
293 regval_ctr_addvalue_sz(ctr, value->valuename,
294 value->data.string);
295 break;
296
297 default:
298 DEBUG(0, ("regdb_ctr_add_value: invalid value type in "
299 "registry values [%d]\n", value->type));
300 }
301 }
302
303 static NTSTATUS init_registry_data_action(struct db_context *db,
304 void *private_data)
305 {
306 NTSTATUS status;
307 TALLOC_CTX *frame = talloc_stackframe();
308 struct regval_ctr *values;
309 int i;
310
311 /* loop over all of the predefined paths and add each component */
312
313 for (i=0; builtin_registry_paths[i] != NULL; i++) {
314 if (regdb_key_exists(db, builtin_registry_paths[i])) {
315 continue;
316 }
317 status = werror_to_ntstatus(init_registry_key_internal(db,
318 builtin_registry_paths[i]));
319 if (!NT_STATUS_IS_OK(status)) {
320 goto done;
321 }
322 }
323
324 /* loop over all of the predefined values and add each component */
325
326 for (i=0; builtin_registry_values[i].path != NULL; i++) {
327 WERROR werr;
328
329 werr = regval_ctr_init(frame, &values);
330 if (!W_ERROR_IS_OK(werr)) {
331 status = werror_to_ntstatus(werr);
332 goto done;
333 }
334
335 regdb_fetch_values_internal(db,
336 builtin_registry_values[i].path,
337 values);
338
339 /* preserve existing values across restarts. Only add new ones */
340
341 if (!regval_ctr_value_exists(values,
342 builtin_registry_values[i].valuename))
343 {
344 regdb_ctr_add_value(values,
345 &builtin_registry_values[i]);
346 status = regdb_store_values_internal(db,
347 builtin_registry_values[i].path,
348 values);
349 if (!NT_STATUS_IS_OK(status)) {
350 goto done;
351 }
352 }
353 TALLOC_FREE(values);
354 }
355
356 status = NT_STATUS_OK;
357
358 done:
359
360 TALLOC_FREE(frame);
361 return status;
362 }
363
364 WERROR init_registry_data(void)
365 {
366 WERROR werr;
367 TALLOC_CTX *frame = talloc_stackframe();
368 struct regval_ctr *values;
369 int i;
370
371 /*
372 * First, check for the existence of the needed keys and values.
373 * If all do already exist, we can save the writes.
374 */
375 for (i=0; builtin_registry_paths[i] != NULL; i++) {
376 if (!regdb_key_exists(regdb, builtin_registry_paths[i])) {
377 goto do_init;
378 }
379 }
380
381 for (i=0; builtin_registry_values[i].path != NULL; i++) {
382 werr = regval_ctr_init(frame, &values);
383 W_ERROR_NOT_OK_GOTO_DONE(werr);
384
385 regdb_fetch_values_internal(regdb,
386 builtin_registry_values[i].path,
387 values);
388 if (!regval_ctr_value_exists(values,
389 builtin_registry_values[i].valuename))
390 {
391 TALLOC_FREE(values);
392 goto do_init;
393 }
394
395 TALLOC_FREE(values);
396 }
397
398 werr = WERR_OK;
399 goto done;
400
401 do_init:
402
403 /*
404 * There are potentially quite a few store operations which are all
405 * indiviually wrapped in tdb transactions. Wrapping them in a single
406 * transaction gives just a single transaction_commit() to actually do
407 * its fsync()s. See tdb/common/transaction.c for info about nested
408 * transaction behaviour.
409 */
410
411 werr = regdb_trans_do(regdb,
412 init_registry_data_action,
413 NULL);
414
415 done:
416 TALLOC_FREE(frame);
417 return werr;
418 }
419
420 static int regdb_normalize_keynames_fn(struct db_record *rec,
421 void *private_data)
422 {
423 TALLOC_CTX *mem_ctx = talloc_tos();
424 const char *keyname;
425 NTSTATUS status;
426 TDB_DATA key;
427 TDB_DATA value;
428 struct db_context *db = (struct db_context *)private_data;
429
430 key = dbwrap_record_get_key(rec);
431 if (key.dptr == NULL || key.dsize == 0) {
432 return 0;
433 }
434
435 value = dbwrap_record_get_value(rec);
436
437 if (db == NULL) {
438 DEBUG(0, ("regdb_normalize_keynames_fn: ERROR: "
439 "NULL db context handed in via private_data\n"));
440 return 1;
441 }
442
443 if (strncmp((const char *)key.dptr, REGDB_VERSION_KEYNAME,
444 strlen(REGDB_VERSION_KEYNAME)) == 0)
445 {
446 return 0;
447 }
448
449 keyname = strchr((const char *)key.dptr, '/');
450 if (keyname) {
451 keyname = talloc_string_sub(mem_ctx,
452 (const char *)key.dptr,
453 "/",
454 "\\");
455
456 DEBUG(2, ("regdb_normalize_keynames_fn: Convert %s to %s\n",
457 (const char *)key.dptr,
458 keyname));
459
460 /* Delete the original record and store the normalized key */
461 status = dbwrap_record_delete(rec);
462 if (!NT_STATUS_IS_OK(status)) {
463 DEBUG(0,("regdb_normalize_keynames_fn: "
464 "tdb_delete for [%s] failed!\n",
465 (const char *)key.dptr));
466 return 1;
467 }
468
469 status = dbwrap_store_bystring(db, keyname, value, TDB_REPLACE);
470 if (!NT_STATUS_IS_OK(status)) {
471 DEBUG(0,("regdb_normalize_keynames_fn: "
472 "failed to store new record for [%s]!\n",
473 keyname));
474 return 1;
475 }
476 }
477
478 return 0;
479 }
480
481 static WERROR regdb_store_regdb_version(struct db_context *db, uint32_t version)
482 {
483 NTSTATUS status;
484 if (db == NULL) {
485 return WERR_CAN_NOT_COMPLETE;
486 }
487
488 status = dbwrap_trans_store_int32_bystring(db, REGDB_VERSION_KEYNAME,
489 version);
490 if (!NT_STATUS_IS_OK(status)) {
491 DEBUG(1, ("regdb_store_regdb_version: error storing %s = %d: %s\n",
492 REGDB_VERSION_KEYNAME, version, nt_errstr(status)));
493 return ntstatus_to_werror(status);
494 } else {
495 DEBUG(10, ("regdb_store_regdb_version: stored %s = %d\n",
496 REGDB_VERSION_KEYNAME, version));
497 return WERR_OK;
498 }
499 }
500
501 static WERROR regdb_upgrade_v1_to_v2(struct db_context *db)
502 {
503 TALLOC_CTX *mem_ctx;
504 NTSTATUS status;
505 WERROR werr;
506
507 mem_ctx = talloc_stackframe();
508
509 status = dbwrap_traverse(db, regdb_normalize_keynames_fn, db, NULL);
510 if (!NT_STATUS_IS_OK(status)) {
511 werr = WERR_REG_IO_FAILURE;
512 goto done;
513 }
514
515 werr = regdb_store_regdb_version(db, REGDB_VERSION_V2);
516
517 done:
518 talloc_free(mem_ctx);
519 return werr;
520 }
521
522 static bool tdb_data_read_uint32(TDB_DATA *buf, uint32_t *result)
523 {
524 const size_t len = sizeof(uint32_t);
525 if (buf->dsize >= len) {
526 *result = IVAL(buf->dptr, 0);
527 buf->dptr += len;
528 buf->dsize -= len;
529 return true;
530 }
531 return false;
532 }
533
534 static bool tdb_data_read_cstr(TDB_DATA *buf, char **result)
535 {
536 const size_t len = strnlen((char*)buf->dptr, buf->dsize) + 1;
537 if (buf->dsize >= len) {
538 *result = (char*)buf->dptr;
539 buf->dptr += len;
540 buf->dsize -= len;
541 return true;
542 }
543 return false;
544 }
545
546 static bool tdb_data_is_cstr(TDB_DATA d) {
547 if (tdb_data_is_empty(d) || (d.dptr[d.dsize-1] != '\0')) {
548 return false;
549 }
550 return strlen((char *)d.dptr) == (d.dsize-1);
551 }
552
553 static bool upgrade_v2_to_v3_check_subkeylist(struct db_context *db,
554 const char *key,
555 const char *subkey)
556 {
557 static uint32_t zero = 0;
558 static TDB_DATA empty_subkey_list = {
559 .dptr = (unsigned char*)&zero,
560 .dsize = sizeof(uint32_t),
561 };
562 bool success = false;
563 char *path = talloc_asprintf(talloc_tos(), "%s\\%s", key, subkey);
564 if (!strupper_m(path)) {
565 goto done;
566 }
567
568 if (!dbwrap_exists(db, string_term_tdb_data(path))) {
569 NTSTATUS status;
570
571 DEBUG(10, ("regdb_upgrade_v2_to_v3: writing subkey list [%s]\n",
572 path));
573
574 status = dbwrap_store_bystring(db, path, empty_subkey_list,
575 TDB_INSERT);
576 if (!NT_STATUS_IS_OK(status)) {
577 DEBUG(0, ("regdb_upgrade_v2_to_v3: writing subkey list "
578 "[%s] failed\n", path));
579 goto done;
580 }
581 }
582 success = true;
583 done:
584 talloc_free(path);
585 return success;
586 }
587
588 static bool upgrade_v2_to_v3_check_parent(struct db_context *db,
589 const char *key)
590 {
591 const char *sep = strrchr_m(key, '\\');
592 if (sep != NULL) {
593 char *pkey = talloc_strndup(talloc_tos(), key, sep-key);
594 if (!dbwrap_exists(db, string_term_tdb_data(pkey))) {
595 DEBUG(0, ("regdb_upgrade_v2_to_v3: missing subkey list "
596 "[%s]\nrun \"net registry check\"\n", pkey));
597 }
598 talloc_free(pkey);
599 }
600 return true;
601 }
602
603
604 #define IS_EQUAL(d,s) (((d).dsize == strlen(s)+1) && \
605 (strcmp((char*)(d).dptr, (s)) == 0))
606 #define STARTS_WITH(d,s) (((d).dsize > strlen(s)) && \
607 (strncmp((char*)(d).dptr, (s), strlen(s)) == 0))
608 #define SSTR(d) (int)(d).dsize , (char*)(d).dptr
609
610
611 static int regdb_upgrade_v2_to_v3_fn(struct db_record *rec, void *private_data)
612 {
613 struct db_context *db = (struct db_context *)private_data;
614 TDB_DATA key = dbwrap_record_get_key(rec);
615 TDB_DATA val = dbwrap_record_get_value(rec);
616
617 if (tdb_data_is_empty(key)) {
618 return 0;
619 }
620
621 if (db == NULL) {
622 DEBUG(0, ("regdb_upgrade_v2_to_v3_fn: ERROR: "
623 "NULL db context handed in via private_data\n"));
624 return 1;
625 }
626
627 if (IS_EQUAL(key, REGDB_VERSION_KEYNAME) ||
628 STARTS_WITH(key, REG_VALUE_PREFIX) ||
629 STARTS_WITH(key, REG_SECDESC_PREFIX))
630 {
631 DEBUG(10, ("regdb_upgrade_v2_to_v3: skipping [%.*s]\n",
632 SSTR(key)));
633 return 0;
634 }
635
636 if (STARTS_WITH(key, REG_SORTED_SUBKEYS_PREFIX)) {
637 NTSTATUS status;
638 /* Delete the deprecated sorted subkeys cache. */
639
640 DEBUG(10, ("regdb_upgrade_v2_to_v3: deleting [%.*s]\n",
641 SSTR(key)));
642
643 status = dbwrap_record_delete(rec);
644 if (!NT_STATUS_IS_OK(status)) {
645 DEBUG(0, ("regdb_upgrade_v2_to_v3: deleting [%.*s] "
646 "failed!\n", SSTR(key)));
647 return 1;
648 }
649
650 return 0;
651 }
652
653 if ( tdb_data_is_cstr(key) &&
654 hive_info((char*)key.dptr) != NULL )
655 {
656 /*
657 * Found a regular subkey list record.
658 * Walk the list and create the list record for those
659 * subkeys that don't already have one.
660 */
661 TDB_DATA pos = val;
662 char *subkey, *path = (char*)key.dptr;
663 uint32_t num_items, found_items = 0;
664
665
666 DEBUG(10, ("regdb_upgrade_v2_to_v3: scanning subkeylist of "
667 "[%s]\n", path));
668
669 if (!tdb_data_read_uint32(&pos, &num_items)) {
670 /* invalid or empty - skip */
671 return 0;
672 }
673
674 while (tdb_data_read_cstr(&pos, &subkey)) {
675 found_items++;
676
677 if (!upgrade_v2_to_v3_check_subkeylist(db, path, subkey))
678 {
679 return 1;
680 }
681
682 if (!upgrade_v2_to_v3_check_parent(db, path)) {
683 return 1;
684 }
685 }
686 if (found_items != num_items) {
687 DEBUG(0, ("regdb_upgrade_v2_to_v3: inconsistent subkey "
688 "list [%s]\nrun \"net registry check\"\n",
689 path));
690 }
691 } else {
692 DEBUG(10, ("regdb_upgrade_v2_to_v3: skipping invalid [%.*s]\n"
693 "run \"net registry check\"\n", SSTR(key)));
694 }
695
696 return 0;
697 }
698
699 static WERROR regdb_upgrade_v2_to_v3(struct db_context *db)
700 {
701 NTSTATUS status;
702 WERROR werr;
703
704 status = dbwrap_traverse(db, regdb_upgrade_v2_to_v3_fn, db, NULL);
705 if (!NT_STATUS_IS_OK(status)) {
706 werr = WERR_REG_IO_FAILURE;
707 goto done;
708 }
709
710 werr = regdb_store_regdb_version(db, REGDB_VERSION_V3);
711
712 done:
713 return werr;
714 }
715
716 /***********************************************************************
717 Open the registry database
718 ***********************************************************************/
719
720 WERROR regdb_init(void)
721 {
722 int32_t vers_id;
723 WERROR werr;
724 NTSTATUS status;
725 char *db_path;
726
727 if (regdb) {
728 DEBUG(10, ("regdb_init: incrementing refcount (%d->%d)\n",
729 regdb_refcount, regdb_refcount+1));
730 regdb_refcount++;
731 return WERR_OK;
732 }
733
734 db_path = state_path("registry.tdb");
735 if (db_path == NULL) {
736 return WERR_NOMEM;
737 }
738
739 regdb = db_open(NULL, db_path, 0,
740 REG_TDB_FLAGS, O_RDWR, 0600,
741 DBWRAP_LOCK_ORDER_1, REG_DBWRAP_FLAGS);
742 if (!regdb) {
743 regdb = db_open(NULL, db_path, 0,
744 REG_TDB_FLAGS, O_RDWR|O_CREAT, 0600,
745 DBWRAP_LOCK_ORDER_1, REG_DBWRAP_FLAGS);
746 if (!regdb) {
747 werr = ntstatus_to_werror(map_nt_error_from_unix(errno));
748 DEBUG(1,("regdb_init: Failed to open registry %s (%s)\n",
749 db_path, strerror(errno) ));
750 TALLOC_FREE(db_path);
751 return werr;
752 }
753
754 werr = regdb_store_regdb_version(regdb, REGDB_CODE_VERSION);
755 if (!W_ERROR_IS_OK(werr)) {
756 DEBUG(1, ("regdb_init: Failed to store version: %s\n",
757 win_errstr(werr)));
758 TALLOC_FREE(db_path);
759 return werr;
760 }
761
762 DEBUG(10,("regdb_init: Successfully created registry tdb\n"));
763 }
764 TALLOC_FREE(db_path);
765
766 regdb_refcount = 1;
767 DEBUG(10, ("regdb_init: registry db openend. refcount reset (%d)\n",
768 regdb_refcount));
769
770 status = dbwrap_fetch_int32_bystring(regdb, REGDB_VERSION_KEYNAME,
771 &vers_id);
772 if (!NT_STATUS_IS_OK(status)) {
773 DEBUG(10, ("regdb_init: registry version uninitialized "
774 "(got %d), initializing to version %d\n",
775 vers_id, REGDB_VERSION_V1));
776
777 /*
778 * There was a regdb format version prior to version 1
779 * which did not store a INFO/version key. The format
780 * of this version was identical to version 1 except for
781 * the lack of the sorted subkey cache records.
782 * Since these are disposable, we can safely assume version
783 * 1 if no INFO/version key is found and run the db through
784 * the whole chain of upgrade. If the database was not
785 * initialized, this does not harm. If it was the unversioned
786 * version ("0"), then it do the right thing with the records.
787 */
788 werr = regdb_store_regdb_version(regdb, REGDB_VERSION_V1);
789 if (!W_ERROR_IS_OK(werr)) {
790 return werr;
791 }
792 vers_id = REGDB_VERSION_V1;
793 }
794
795 if (vers_id == REGDB_CODE_VERSION) {
796 return WERR_OK;
797 }
798
799 if (vers_id > REGDB_CODE_VERSION || vers_id == 0) {
800 DEBUG(0, ("regdb_init: unknown registry version %d "
801 "(code version = %d), refusing initialization\n",
802 vers_id, REGDB_CODE_VERSION));
803 return WERR_CAN_NOT_COMPLETE;
804 }
805
806 if (dbwrap_transaction_start(regdb) != 0) {
807 return WERR_REG_IO_FAILURE;
808 }
809
810 if (vers_id == REGDB_VERSION_V1) {
811 DEBUG(10, ("regdb_init: upgrading registry from version %d "
812 "to %d\n", REGDB_VERSION_V1, REGDB_VERSION_V2));
813
814 werr = regdb_upgrade_v1_to_v2(regdb);
815 if (!W_ERROR_IS_OK(werr)) {
816 dbwrap_transaction_cancel(regdb);
817 return werr;
818 }
819
820 vers_id = REGDB_VERSION_V2;
821 }
822
823 if (vers_id == REGDB_VERSION_V2) {
824 DEBUG(10, ("regdb_init: upgrading registry from version %d "
825 "to %d\n", REGDB_VERSION_V2, REGDB_VERSION_V3));
826
827 werr = regdb_upgrade_v2_to_v3(regdb);
828 if (!W_ERROR_IS_OK(werr)) {
829 dbwrap_transaction_cancel(regdb);
830 return werr;
831 }
832
833 vers_id = REGDB_VERSION_V3;
834 }
835
836 /* future upgrade code should go here */
837
838 if (dbwrap_transaction_commit(regdb) != 0) {
839 return WERR_REG_IO_FAILURE;
840 }
841
842 return WERR_OK;
843 }
844
845 /***********************************************************************
846 Open the registry. Must already have been initialized by regdb_init()
847 ***********************************************************************/
848
849 WERROR regdb_open( void )
850 {
851 WERROR result = WERR_OK;
852 char *db_path;
853 int saved_errno;
854
855 if ( regdb ) {
856 DEBUG(10, ("regdb_open: incrementing refcount (%d->%d)\n",
857 regdb_refcount, regdb_refcount+1));
858 regdb_refcount++;
859 return WERR_OK;
860 }
861
862 db_path = state_path("registry.tdb");
863 if (db_path == NULL) {
864 return WERR_NOMEM;
865 }
866
867 become_root();
868
869 regdb = db_open(NULL, db_path, 0,
870 REG_TDB_FLAGS, O_RDWR, 0600,
871 DBWRAP_LOCK_ORDER_1, REG_DBWRAP_FLAGS);
872 saved_errno = errno;
873 unbecome_root();
874 if ( !regdb ) {
875 result = ntstatus_to_werror(map_nt_error_from_unix(saved_errno));
876 DEBUG(0,("regdb_open: Failed to open %s! (%s)\n",
877 db_path, strerror(saved_errno)));
878 TALLOC_FREE(db_path);
879 return result;
880 }
881 TALLOC_FREE(db_path);
882
883 regdb_refcount = 1;
884 DEBUG(10, ("regdb_open: registry db opened. refcount reset (%d)\n",
885 regdb_refcount));
886
887 return WERR_OK;
888 }
889
890 /***********************************************************************
891 ***********************************************************************/
892
893 int regdb_close( void )
894 {
895 if (regdb_refcount == 0) {
896 return 0;
897 }
898
899 regdb_refcount--;
900
901 DEBUG(10, ("regdb_close: decrementing refcount (%d->%d)\n",
902 regdb_refcount+1, regdb_refcount));
903
904 if ( regdb_refcount > 0 )
905 return 0;
906
907 SMB_ASSERT( regdb_refcount >= 0 );
908
909 TALLOC_FREE(regdb);
910 return 0;
911 }
912
913 WERROR regdb_transaction_start(void)
914 {
915 return (dbwrap_transaction_start(regdb) == 0) ?
916 WERR_OK : WERR_REG_IO_FAILURE;
917 }
918
919 WERROR regdb_transaction_commit(void)
920 {
921 return (dbwrap_transaction_commit(regdb) == 0) ?
922 WERR_OK : WERR_REG_IO_FAILURE;
923 }
924
925 WERROR regdb_transaction_cancel(void)
926 {
927 return (dbwrap_transaction_cancel(regdb) == 0) ?
928 WERR_OK : WERR_REG_IO_FAILURE;
929 }
930
931 /***********************************************************************
932 return the tdb sequence number of the registry tdb.
933 this is an indicator for the content of the registry
934 having changed. it will change upon regdb_init, too, though.
935 ***********************************************************************/
936 int regdb_get_seqnum(void)
937 {
938 return dbwrap_get_seqnum(regdb);
939 }
940
941
942 static WERROR regdb_delete_key_with_prefix(struct db_context *db,
943 const char *keyname,
944 const char *prefix)
945 {
946 char *path;
947 WERROR werr = WERR_NOMEM;
948 TALLOC_CTX *mem_ctx = talloc_stackframe();
949
950 if (keyname == NULL) {
951 werr = WERR_INVALID_PARAM;
952 goto done;
953 }
954
955 if (prefix == NULL) {
956 path = discard_const_p(char, keyname);
957 } else {
958 path = talloc_asprintf(mem_ctx, "%s\\%s", prefix, keyname);
959 if (path == NULL) {
960 goto done;
961 }
962 }
963
964 path = normalize_reg_path(mem_ctx, path);
965 if (path == NULL) {
966 goto done;
967 }
968
969 werr = ntstatus_to_werror(dbwrap_purge_bystring(db, path));
970
971 done:
972 talloc_free(mem_ctx);
973 return werr;
974 }
975
976
977 static WERROR regdb_delete_values(struct db_context *db, const char *keyname)
978 {
979 return regdb_delete_key_with_prefix(db, keyname, REG_VALUE_PREFIX);
980 }
981
982 static WERROR regdb_delete_secdesc(struct db_context *db, const char *keyname)
983 {
984 return regdb_delete_key_with_prefix(db, keyname, REG_SECDESC_PREFIX);
985 }
986
987 static WERROR regdb_delete_subkeylist(struct db_context *db, const char *keyname)
988 {
989 return regdb_delete_key_with_prefix(db, keyname, NULL);
990 }
991
992
993 static WERROR regdb_delete_key_lists(struct db_context *db, const char *keyname)
994 {
995 WERROR werr;
996
997 werr = regdb_delete_values(db, keyname);
998 if (!W_ERROR_IS_OK(werr)) {
999 DEBUG(1, (__location__ " Deleting %s\\%s failed: %s\n",
1000 REG_VALUE_PREFIX, keyname, win_errstr(werr)));
1001 goto done;
1002 }
1003
1004 werr = regdb_delete_secdesc(db, keyname);
1005 if (!W_ERROR_IS_OK(werr)) {
1006 DEBUG(1, (__location__ " Deleting %s\\%s failed: %s\n",
1007 REG_SECDESC_PREFIX, keyname, win_errstr(werr)));
1008 goto done;
1009 }
1010
1011 werr = regdb_delete_subkeylist(db, keyname);
1012 if (!W_ERROR_IS_OK(werr)) {
1013 DEBUG(1, (__location__ " Deleting %s failed: %s\n",
1014 keyname, win_errstr(werr)));
1015 goto done;
1016 }
1017
1018 done:
1019 return werr;
1020 }
1021
1022 /***********************************************************************
1023 Add subkey strings to the registry tdb under a defined key
1024 fmt is the same format as tdb_pack except this function only supports
1025 fstrings
1026 ***********************************************************************/
1027
1028 static WERROR regdb_store_keys_internal2(struct db_context *db,
1029 const char *key,
1030 struct regsubkey_ctr *ctr)
1031 {
1032 TDB_DATA dbuf;
1033 uint8_t *buffer = NULL;
1034 int i = 0;
1035 uint32_t len, buflen;
1036 uint32_t num_subkeys = regsubkey_ctr_numkeys(ctr);
1037 char *keyname = NULL;
1038 TALLOC_CTX *ctx = talloc_stackframe();
1039 WERROR werr;
1040
1041 if (!key) {
1042 werr = WERR_INVALID_PARAM;
1043 goto done;
1044 }
1045
1046 keyname = talloc_strdup(ctx, key);
1047 if (!keyname) {
1048 werr = WERR_NOMEM;
1049 goto done;
1050 }
1051
1052 keyname = normalize_reg_path(ctx, keyname);
1053 if (!keyname) {
1054 werr = WERR_NOMEM;
1055 goto done;
1056 }
1057
1058 /* allocate some initial memory */
1059
1060 buffer = (uint8_t *)SMB_MALLOC(1024);
1061 if (buffer == NULL) {
1062 werr = WERR_NOMEM;
1063 goto done;
1064 }
1065 buflen = 1024;
1066 len = 0;
1067
1068 /* store the number of subkeys */
1069
1070 len += tdb_pack(buffer+len, buflen-len, "d", num_subkeys);
1071
1072 /* pack all the strings */
1073
1074 for (i=0; i<num_subkeys; i++) {
1075 size_t thistime;
1076
1077 thistime = tdb_pack(buffer+len, buflen-len, "f",
1078 regsubkey_ctr_specific_key(ctr, i));
1079 if (len+thistime > buflen) {
1080 size_t thistime2;
1081 /*
1082 * tdb_pack hasn't done anything because of the short
1083 * buffer, allocate extra space.
1084 */
1085 buffer = SMB_REALLOC_ARRAY(buffer, uint8_t,
1086 (len+thistime)*2);
1087 if(buffer == NULL) {
1088 DEBUG(0, ("regdb_store_keys: Failed to realloc "
1089 "memory of size [%u]\n",
1090 (unsigned int)(len+thistime)*2));
1091 werr = WERR_NOMEM;
1092 goto done;
1093 }
1094 buflen = (len+thistime)*2;
1095 thistime2 = tdb_pack(
1096 buffer+len, buflen-len, "f",
1097 regsubkey_ctr_specific_key(ctr, i));
1098 if (thistime2 != thistime) {
1099 DEBUG(0, ("tdb_pack failed\n"));
1100 werr = WERR_CAN_NOT_COMPLETE;
1101 goto done;
1102 }
1103 }
1104 len += thistime;
1105 }
1106
1107 /* finally write out the data */
1108
1109 dbuf.dptr = buffer;
1110 dbuf.dsize = len;
1111 werr = ntstatus_to_werror(dbwrap_store_bystring(db, keyname, dbuf,
1112 TDB_REPLACE));
1113
1114 done:
1115 TALLOC_FREE(ctx);
1116 SAFE_FREE(buffer);
1117 return werr;
1118 }
1119
1120 /**
1121 * Utility function to store a new empty list of
1122 * subkeys of given key specified as parent and subkey name
1123 * (thereby creating the key).
1124 * If the parent keyname is NULL, then the "subkey" is
1125 * interpreted as a base key.
1126 * If the subkey list does already exist, it is not modified.
1127 *
1128 * Must be called from within a transaction.
1129 */
1130 static WERROR regdb_store_subkey_list(struct db_context *db, const char *parent,
1131 const char *key)
1132 {
1133 WERROR werr;
1134 char *path = NULL;
1135 struct regsubkey_ctr *subkeys = NULL;
1136 TALLOC_CTX *frame = talloc_stackframe();
1137
1138 if (parent == NULL) {
1139 path = talloc_strdup(frame, key);
1140 } else {
1141 path = talloc_asprintf(frame, "%s\\%s", parent, key);
1142 }
1143 if (!path) {
1144 werr = WERR_NOMEM;
1145 goto done;
1146 }
1147
1148 werr = regsubkey_ctr_init(frame, &subkeys);
1149 W_ERROR_NOT_OK_GOTO_DONE(werr);
1150
1151 werr = regdb_fetch_keys_internal(db, path, subkeys);
1152 if (W_ERROR_IS_OK(werr)) {
1153 /* subkey list exists already - don't modify */
1154 goto done;
1155 }
1156
1157 werr = regsubkey_ctr_reinit(subkeys);
1158 W_ERROR_NOT_OK_GOTO_DONE(werr);
1159
1160 /* create a record with 0 subkeys */
1161 werr = regdb_store_keys_internal2(db, path, subkeys);
1162 if (!W_ERROR_IS_OK(werr)) {
1163 DEBUG(0, ("regdb_store_keys: Failed to store new record for "
1164 "key [%s]: %s\n", path, win_errstr(werr)));
1165 goto done;
1166 }
1167
1168 done:
1169 talloc_free(frame);
1170 return werr;
1171 }
1172
1173 /***********************************************************************
1174 Store the new subkey record and create any child key records that
1175 do not currently exist
1176 ***********************************************************************/
1177
1178 struct regdb_store_keys_context {
1179 const char *key;
1180 struct regsubkey_ctr *ctr;
1181 };
1182
1183 static NTSTATUS regdb_store_keys_action(struct db_context *db,
1184 void *private_data)
1185 {
1186 struct regdb_store_keys_context *store_ctx;
1187 WERROR werr;
1188 int num_subkeys, i;
1189 char *path = NULL;
1190 struct regsubkey_ctr *old_subkeys = NULL;
1191 char *oldkeyname = NULL;
1192 TALLOC_CTX *mem_ctx = talloc_stackframe();
1193
1194 store_ctx = (struct regdb_store_keys_context *)private_data;
1195
1196 /*
1197 * Re-fetch the old keys inside the transaction
1198 */
1199
1200 werr = regsubkey_ctr_init(mem_ctx, &old_subkeys);
1201 W_ERROR_NOT_OK_GOTO_DONE(werr);
1202
1203 werr = regdb_fetch_keys_internal(db, store_ctx->key, old_subkeys);
1204 if (!W_ERROR_IS_OK(werr) &&
1205 !W_ERROR_EQUAL(werr, WERR_NOT_FOUND))
1206 {
1207 goto done;
1208 }
1209
1210 /*
1211 * Make the store operation as safe as possible without transactions:
1212 *
1213 * (1) For each subkey removed from ctr compared with old_subkeys:
1214 *
1215 * (a) First delete the value db entry.
1216 *
1217 * (b) Next delete the secdesc db record.
1218 *
1219 * (c) Then delete the subkey list entry.
1220 *
1221 * (2) Now write the list of subkeys of the parent key,
1222 * deleting removed entries and adding new ones.
1223 *
1224 * (3) Finally create the subkey list entries for the added keys.
1225 *
1226 * This way if we crash half-way in between deleting the subkeys
1227 * and storing the parent's list of subkeys, no old data can pop up
1228 * out of the blue when re-adding keys later on.
1229 */
1230
1231 /* (1) delete removed keys' lists (values/secdesc/subkeys) */
1232
1233 num_subkeys = regsubkey_ctr_numkeys(old_subkeys);
1234 for (i=0; i<num_subkeys; i++) {
1235 oldkeyname = regsubkey_ctr_specific_key(old_subkeys, i);
1236
1237 if (regsubkey_ctr_key_exists(store_ctx->ctr, oldkeyname)) {
1238 /*
1239 * It's still around, don't delete
1240 */
1241 continue;
1242 }
1243
1244 path = talloc_asprintf(mem_ctx, "%s\\%s", store_ctx->key,
1245 oldkeyname);
1246 if (!path) {
1247 werr = WERR_NOMEM;
1248 goto done;
1249 }
1250
1251 werr = regdb_delete_key_lists(db, path);
1252 W_ERROR_NOT_OK_GOTO_DONE(werr);
1253
1254 TALLOC_FREE(path);
1255 }
1256
1257 TALLOC_FREE(old_subkeys);
1258
1259 /* (2) store the subkey list for the parent */
1260
1261 werr = regdb_store_keys_internal2(db, store_ctx->key, store_ctx->ctr);
1262 if (!W_ERROR_IS_OK(werr)) {
1263 DEBUG(0,("regdb_store_keys: Failed to store new subkey list "
1264 "for parent [%s]: %s\n", store_ctx->key,
1265 win_errstr(werr)));
1266 goto done;
1267 }
1268
1269 /* (3) now create records for any subkeys that don't already exist */
1270
1271 num_subkeys = regsubkey_ctr_numkeys(store_ctx->ctr);
1272
1273 for (i=0; i<num_subkeys; i++) {
1274 const char *subkey;
1275
1276 subkey = regsubkey_ctr_specific_key(store_ctx->ctr, i);
1277
1278 werr = regdb_store_subkey_list(db, store_ctx->key, subkey);
1279 W_ERROR_NOT_OK_GOTO_DONE(werr);
1280 }
1281
1282 /*
1283 * Update the seqnum in the container to possibly
1284 * prevent next read from going to disk
1285 */
1286 werr = regsubkey_ctr_set_seqnum(store_ctx->ctr, dbwrap_get_seqnum(db));
1287
1288 done:
1289 talloc_free(mem_ctx);
1290 return werror_to_ntstatus(werr);
1291 }
1292
1293 static bool regdb_store_keys_internal(struct db_context *db, const char *key,
1294 struct regsubkey_ctr *ctr)
1295 {
1296 int num_subkeys, old_num_subkeys, i;
1297 struct regsubkey_ctr *old_subkeys = NULL;
1298 TALLOC_CTX *ctx = talloc_stackframe();
1299 WERROR werr;
1300 bool ret = false;
1301 struct regdb_store_keys_context store_ctx;
1302
1303 if (!regdb_key_exists(db, key)) {
1304 goto done;
1305 }
1306
1307 /*
1308 * fetch a list of the old subkeys so we can determine if anything has
1309 * changed
1310 */
1311
1312 werr = regsubkey_ctr_init(ctx, &old_subkeys);
1313 if (!W_ERROR_IS_OK(werr)) {
1314 DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
1315 goto done;
1316 }
1317
1318 werr = regdb_fetch_keys_internal(db, key, old_subkeys);
1319 if (!W_ERROR_IS_OK(werr) &&
1320 !W_ERROR_EQUAL(werr, WERR_NOT_FOUND))
1321 {
1322 goto done;
1323 }
1324
1325 num_subkeys = regsubkey_ctr_numkeys(ctr);
1326 old_num_subkeys = regsubkey_ctr_numkeys(old_subkeys);
1327 if ((num_subkeys && old_num_subkeys) &&
1328 (num_subkeys == old_num_subkeys)) {
1329
1330 for (i = 0; i < num_subkeys; i++) {
1331 if (strcmp(regsubkey_ctr_specific_key(ctr, i),
1332 regsubkey_ctr_specific_key(old_subkeys, i))
1333 != 0)
1334 {
1335 break;
1336 }
1337 }
1338 if (i == num_subkeys) {
1339 /*
1340 * Nothing changed, no point to even start a tdb
1341 * transaction
1342 */
1343
1344 ret = true;
1345 goto done;
1346 }
1347 }
1348
1349 TALLOC_FREE(old_subkeys);
1350
1351 store_ctx.key = key;
1352 store_ctx.ctr = ctr;
1353
1354 werr = regdb_trans_do(db,
1355 regdb_store_keys_action,
1356 &store_ctx);
1357
1358 ret = W_ERROR_IS_OK(werr);
1359
1360 done:
1361 TALLOC_FREE(ctx);
1362
1363 return ret;
1364 }
1365
1366 static bool regdb_store_keys(const char *key, struct regsubkey_ctr *ctr)
1367 {
1368 return regdb_store_keys_internal(regdb, key, ctr);
1369 }
1370
1371 /**
1372 * create a subkey of a given key
1373 */
1374
1375 struct regdb_create_subkey_context {
1376 const char *key;
1377 const char *subkey;
1378 };
1379
1380 static NTSTATUS regdb_create_subkey_action(struct db_context *db,
1381 void *private_data)
1382 {
1383 WERROR werr;
1384 struct regdb_create_subkey_context *create_ctx;
1385 struct regsubkey_ctr *subkeys;
1386 TALLOC_CTX *mem_ctx = talloc_stackframe();
1387
1388 create_ctx = (struct regdb_create_subkey_context *)private_data;
1389
1390 werr = regsubkey_ctr_init(mem_ctx, &subkeys);
1391 W_ERROR_NOT_OK_GOTO_DONE(werr);
1392
1393 werr = regdb_fetch_keys_internal(db, create_ctx->key, subkeys);
1394 W_ERROR_NOT_OK_GOTO_DONE(werr);
1395
1396 werr = regsubkey_ctr_addkey(subkeys, create_ctx->subkey);
1397 W_ERROR_NOT_OK_GOTO_DONE(werr);
1398
1399 werr = regdb_store_keys_internal2(db, create_ctx->key, subkeys);
1400 if (!W_ERROR_IS_OK(werr)) {
1401 DEBUG(0, (__location__ " failed to store new subkey list for "
1402 "parent key %s: %s\n", create_ctx->key,
1403 win_errstr(werr)));
1404 }
1405
1406 werr = regdb_store_subkey_list(db, create_ctx->key, create_ctx->subkey);
1407
1408 done:
1409 talloc_free(mem_ctx);
1410 return werror_to_ntstatus(werr);
1411 }
1412
1413 static WERROR regdb_create_subkey_internal(struct db_context *db,
1414 const char *key,
1415 const char *subkey)
1416 {
1417 WERROR werr;
1418 struct regsubkey_ctr *subkeys;
1419 TALLOC_CTX *mem_ctx = talloc_stackframe();
1420 struct regdb_create_subkey_context create_ctx;
1421
1422 if (!regdb_key_exists(db, key)) {
1423 werr = WERR_NOT_FOUND;
1424 goto done;
1425 }
1426
1427 werr = regsubkey_ctr_init(mem_ctx, &subkeys);
1428 W_ERROR_NOT_OK_GOTO_DONE(werr);
1429
1430 werr = regdb_fetch_keys_internal(db, key, subkeys);
1431 W_ERROR_NOT_OK_GOTO_DONE(werr);
1432
1433 if (regsubkey_ctr_key_exists(subkeys, subkey)) {
1434 char *newkey;
1435
1436 newkey = talloc_asprintf(mem_ctx, "%s\\%s", key, subkey);
1437 if (newkey == NULL) {
1438 werr = WERR_NOMEM;
1439 goto done;
1440 }
1441
1442 if (regdb_key_exists(db, newkey)) {
1443 werr = WERR_OK;
1444 goto done;
1445 }
1446 }
1447
1448 talloc_free(subkeys);
1449
1450 create_ctx.key = key;
1451 create_ctx.subkey = subkey;
1452
1453 werr = regdb_trans_do(db,
1454 regdb_create_subkey_action,
1455 &create_ctx);
1456
1457 done:
1458 talloc_free(mem_ctx);
1459 return werr;
1460 }
1461
1462 static WERROR regdb_create_subkey(const char *key, const char *subkey)
1463 {
1464 return regdb_create_subkey_internal(regdb, key, subkey);
1465 }
1466
1467 /**
1468 * create a base key
1469 */
1470
1471 struct regdb_create_basekey_context {
1472 const char *key;
1473 };
1474
1475 static NTSTATUS regdb_create_basekey_action(struct db_context *db,
1476 void *private_data)
1477 {
1478 WERROR werr;
1479 struct regdb_create_basekey_context *create_ctx;
1480
1481 create_ctx = (struct regdb_create_basekey_context *)private_data;
1482
1483 werr = regdb_store_subkey_list(db, NULL, create_ctx->key);
1484
1485 return werror_to_ntstatus(werr);
1486 }
1487
1488 static WERROR regdb_create_basekey(struct db_context *db, const char *key)
1489 {
1490 WERROR werr;
1491 struct regdb_create_subkey_context create_ctx;
1492
1493 create_ctx.key = key;
1494
1495 werr = regdb_trans_do(db,
1496 regdb_create_basekey_action,
1497 &create_ctx);
1498
1499 return werr;
1500 }
1501
1502 /**
1503 * create a subkey of a given key
1504 */
1505
1506 struct regdb_delete_subkey_context {
1507 const char *key;
1508 const char *subkey;
1509 const char *path;
1510 bool lazy;
1511 };
1512
1513 static NTSTATUS regdb_delete_subkey_action(struct db_context *db,
1514 void *private_data)
1515 {
1516 WERROR werr;
1517 struct regdb_delete_subkey_context *delete_ctx;
1518 struct regsubkey_ctr *subkeys;
1519 TALLOC_CTX *mem_ctx = talloc_stackframe();
1520
1521 delete_ctx = (struct regdb_delete_subkey_context *)private_data;
1522
1523 werr = regdb_delete_key_lists(db, delete_ctx->path);
1524 W_ERROR_NOT_OK_GOTO_DONE(werr);
1525
1526 if (delete_ctx->lazy) {
1527 goto done;
1528 }
1529
1530 werr = regsubkey_ctr_init(mem_ctx, &subkeys);
1531 W_ERROR_NOT_OK_GOTO_DONE(werr);
1532
1533 werr = regdb_fetch_keys_internal(db, delete_ctx->key, subkeys);
1534 W_ERROR_NOT_OK_GOTO_DONE(werr);
1535
1536 werr = regsubkey_ctr_delkey(subkeys, delete_ctx->subkey);
1537 W_ERROR_NOT_OK_GOTO_DONE(werr);
1538
1539 werr = regdb_store_keys_internal2(db, delete_ctx->key, subkeys);
1540 if (!W_ERROR_IS_OK(werr)) {
1541 DEBUG(0, (__location__ " failed to store new subkey_list for "
1542 "parent key %s: %s\n", delete_ctx->key,
1543 win_errstr(werr)));
1544 }
1545
1546 done:
1547 talloc_free(mem_ctx);
1548 return werror_to_ntstatus(werr);
1549 }
1550
1551 static WERROR regdb_delete_subkey(const char *key, const char *subkey, bool lazy)
1552 {
1553 WERROR werr;
1554 char *path;
1555 struct regdb_delete_subkey_context delete_ctx;
1556 TALLOC_CTX *mem_ctx = talloc_stackframe();
1557
1558 if (!regdb_key_exists(regdb, key)) {
1559 werr = WERR_NOT_FOUND;
1560 goto done;
1561 }
1562
1563 path = talloc_asprintf(mem_ctx, "%s\\%s", key, subkey);
1564 if (path == NULL) {
1565 werr = WERR_NOMEM;
1566 goto done;
1567 }
1568
1569 if (!regdb_key_exists(regdb, path)) {
1570 werr = WERR_OK;
1571 goto done;
1572 }
1573
1574 delete_ctx.key = key;
1575 delete_ctx.subkey = subkey;
1576 delete_ctx.path = path;
1577 delete_ctx.lazy = lazy;
1578
1579 werr = regdb_trans_do(regdb,
1580 regdb_delete_subkey_action,
1581 &delete_ctx);
1582
1583 done:
1584 talloc_free(mem_ctx);
1585 return werr;
1586 }
1587
1588 static TDB_DATA regdb_fetch_key_internal(struct db_context *db,
1589 TALLOC_CTX *mem_ctx, const char *key)
1590 {
1591 char *path = NULL;
1592 TDB_DATA data;
1593 NTSTATUS status;
1594
1595 path = normalize_reg_path(mem_ctx, key);
1596 if (!path) {
1597 return make_tdb_data(NULL, 0);
1598 }
1599
1600 status = dbwrap_fetch_bystring(db, mem_ctx, path, &data);
1601 if (!NT_STATUS_IS_OK(status)) {
1602 data = tdb_null;
1603 }
1604
1605 TALLOC_FREE(path);
1606 return data;
1607 }
1608
1609
1610 /**
1611 * Check for the existence of a key.
1612 *
1613 * Existence of a key is authoritatively defined by
1614 * the existence of the record that contains the list
1615 * of its subkeys.
1616 *
1617 * Return false, if the record does not match the correct
1618 * structure of an initial 4-byte counter and then a
1619 * list of the corresponding number of zero-terminated
1620 * strings.
1621 */
1622 static bool regdb_key_exists(struct db_context *db, const char *key)
1623 {
1624 TALLOC_CTX *mem_ctx = talloc_stackframe();
1625 TDB_DATA value;
1626 bool ret = false;
1627 char *path;
1628 uint32_t buflen;
1629 const char *buf;
1630 uint32_t num_items, i;
1631 int32_t len;
1632
1633 if (key == NULL) {
1634 goto done;
1635 }
1636
1637 path = normalize_reg_path(mem_ctx, key);
1638 if (path == NULL) {
1639 DEBUG(0, ("out of memory! (talloc failed)\n"));
1640 goto done;
1641 }
1642
1643 if (*path == '\0') {
1644 goto done;
1645 }
1646
1647 value = regdb_fetch_key_internal(db, mem_ctx, path);
1648 if (value.dptr == NULL) {
1649 goto done;
1650 }
1651
1652 if (value.dsize == 0) {
1653 DEBUG(10, ("regdb_key_exists: subkeylist-record for key "
1654 "[%s] is empty: Could be a deleted record in a "
1655 "clustered (ctdb) environment?\n",
1656 path));
1657 goto done;
1658 }
1659
1660 len = tdb_unpack(value.dptr, value.dsize, "d", &num_items);
1661 if (len == (int32_t)-1) {
1662 DEBUG(1, ("regdb_key_exists: ERROR: subkeylist-record for key "
1663 "[%s] is invalid: Could not parse initial 4-byte "
1664 "counter. record data length is %u.\n",
1665 path, (unsigned int)value.dsize));
1666 goto done;
1667 }
1668
1669 /*
1670 * Note: the tdb_unpack check above implies that len <= value.dsize
1671 */
1672 buflen = value.dsize - len;
1673 buf = (const char *)value.dptr + len;
1674
1675 len = 0;
1676
1677 for (i = 0; i < num_items; i++) {
1678 if (buflen == 0) {
1679 break;
1680 }
1681 len = strnlen(buf, buflen) + 1;
1682 if (buflen < len) {
1683 DEBUG(1, ("regdb_key_exists: ERROR: subkeylist-record "
1684 "for key [%s] is corrupt: %u items expected, "
1685 "item number %u is not zero terminated.\n",
1686 path, num_items, i+1));
1687 goto done;
1688 }
1689
1690 buf += len;
1691 buflen -= len;
1692 }
1693
1694 if (buflen > 0) {
1695 DEBUG(1, ("regdb_key_exists: ERROR: subkeylist-record for key "
1696 "[%s] is corrupt: %u items expected and found, but "
1697 "the record contains additional %u bytes\n",
1698 path, num_items, buflen));
1699 goto done;
1700 }
1701
1702 if (i < num_items) {
1703 DEBUG(1, ("regdb_key_exists: ERROR: subkeylist-record for key "
1704 "[%s] is corrupt: %u items expected, but only %u "
1705 "items found.\n",
1706 path, num_items, i+1));
1707 goto done;
1708 }
1709
1710 ret = true;
1711
1712 done:
1713 TALLOC_FREE(mem_ctx);
1714 return ret;
1715 }
1716
1717
1718 /***********************************************************************
1719 Retrieve an array of strings containing subkeys. Memory should be
1720 released by the caller.
1721 ***********************************************************************/
1722
1723 static WERROR regdb_fetch_keys_internal(struct db_context *db, const char *key,
1724 struct regsubkey_ctr *ctr)
1725 {
1726 WERROR werr;
1727 uint32_t num_items;
1728 uint8_t *buf;
1729 uint32_t buflen, len;
1730 int i;
1731 fstring subkeyname;
1732 TALLOC_CTX *frame = talloc_stackframe();
1733 TDB_DATA value;
1734 int seqnum[2], count;
1735
1736 DEBUG(11,("regdb_fetch_keys: Enter key => [%s]\n", key ? key : "NULL"));
1737
1738 if (!regdb_key_exists(db, key)) {
1739 DEBUG(10, ("key [%s] not found\n", key));
1740 werr = WERR_NOT_FOUND;
1741 goto done;
1742 }
1743
1744 werr = regsubkey_ctr_reinit(ctr);
1745 W_ERROR_NOT_OK_GOTO_DONE(werr);
1746
1747 count = 0;
1748 ZERO_STRUCT(value);
1749 seqnum[0] = dbwrap_get_seqnum(db);
1750
1751 do {
1752 count++;
1753 TALLOC_FREE(value.dptr);
1754 value = regdb_fetch_key_internal(db, frame, key);
1755 seqnum[count % 2] = dbwrap_get_seqnum(db);
1756
1757 } while (seqnum[0] != seqnum[1]);
1758
1759 if (count > 1) {
1760 DEBUG(5, ("regdb_fetch_keys_internal: it took %d attempts to "
1761 "fetch key '%s' with constant seqnum\n",
1762 count, key));
1763 }
1764
1765 werr = regsubkey_ctr_set_seqnum(ctr, seqnum[0]);
1766 if (!W_ERROR_IS_OK(werr)) {
1767 goto done;
1768 }
1769
1770 if (value.dsize == 0 || value.dptr == NULL) {
1771 DEBUG(10, ("regdb_fetch_keys: no subkeys found for key [%s]\n",
1772 key));
1773 goto done;
1774 }
1775
1776 buf = value.dptr;
1777 buflen = value.dsize;
1778 len = tdb_unpack( buf, buflen, "d", &num_items);
1779 if (len == (uint32_t)-1) {
1780 werr = WERR_NOT_FOUND;
1781 goto done;
1782 }
1783
1784 for (i=0; i<num_items; i++) {
1785 len += tdb_unpack(buf+len, buflen-len, "f", subkeyname);
1786 werr = regsubkey_ctr_addkey(ctr, subkeyname);
1787 if (!W_ERROR_IS_OK(werr)) {
1788 DEBUG(5, ("regdb_fetch_keys: regsubkey_ctr_addkey "
1789 "failed: %s\n", win_errstr(werr)));
1790 num_items = 0;
1791 goto done;
1792 }
1793 }
1794
1795 DEBUG(11,("regdb_fetch_keys: Exit [%d] items\n", num_items));
1796
1797 done:
1798 TALLOC_FREE(frame);
1799 return werr;
1800 }
1801
1802 static int regdb_fetch_keys(const char *key, struct regsubkey_ctr *ctr)
1803 {
1804 WERROR werr;
1805
1806 werr = regdb_fetch_keys_internal(regdb, key, ctr);
1807 if (!W_ERROR_IS_OK(werr)) {
1808 return -1;
1809 }
1810
1811 return regsubkey_ctr_numkeys(ctr);
1812 }
1813
1814 /****************************************************************************
1815 Unpack a list of registry values frem the TDB
1816 ***************************************************************************/
1817
1818 static int regdb_unpack_values(struct regval_ctr *values, uint8_t *buf, int buflen)
1819 {
1820 int len = 0;
1821 uint32_t type;
1822 fstring valuename;
1823 uint32_t size;
1824 uint8_t *data_p;
1825 uint32_t num_values = 0;
1826 int i;
1827
1828 /* loop and unpack the rest of the registry values */
1829
1830 len += tdb_unpack(buf+len, buflen-len, "d", &num_values);
1831
1832 for ( i=0; i<num_values; i++ ) {
1833 /* unpack the next regval */
1834
1835 type = REG_NONE;
1836 size = 0;
1837 data_p = NULL;
1838 valuename[0] = '\0';
1839 len += tdb_unpack(buf+len, buflen-len, "fdB",
1840 valuename,
1841 &type,
1842 &size,
1843 &data_p);
1844
1845 regval_ctr_addvalue(values, valuename, type,
1846 (uint8_t *)data_p, size);
1847 SAFE_FREE(data_p); /* 'B' option to tdb_unpack does a malloc() */
1848
1849 DEBUG(10, ("regdb_unpack_values: value[%d]: name[%s] len[%d]\n",
1850 i, valuename, size));
1851 }
1852
1853 return len;
1854 }
1855
1856 /****************************************************************************
1857 Pack all values in all printer keys
1858 ***************************************************************************/
1859
1860 static int regdb_pack_values(struct regval_ctr *values, uint8_t *buf, int buflen)
1861 {
1862 int len = 0;
1863 int i;
1864 struct regval_blob *val;
1865 int num_values;
1866
1867 if ( !values )
1868 return 0;
1869
1870 num_values = regval_ctr_numvals( values );
1871
1872 /* pack the number of values first */
1873
1874 len += tdb_pack( buf+len, buflen-len, "d", num_values );
1875
1876 /* loop over all values */
1877
1878 for ( i=0; i<num_values; i++ ) {
1879 val = regval_ctr_specific_value( values, i );
1880 len += tdb_pack(buf+len, buflen-len, "fdB",
1881 regval_name(val),
1882 regval_type(val),
1883 regval_size(val),
1884 regval_data_p(val) );
1885 }
1886
1887 return len;
1888 }
1889
1890 /***********************************************************************
1891 Retrieve an array of strings containing subkeys. Memory should be
1892 released by the caller.
1893 ***********************************************************************/
1894
1895 static int regdb_fetch_values_internal(struct db_context *db, const char* key,
1896 struct regval_ctr *values)
1897 {
1898 char *keystr = NULL;
1899 TALLOC_CTX *ctx = talloc_stackframe();
1900 int ret = 0;
1901 TDB_DATA value;
1902 WERROR werr;
1903 int seqnum[2], count;
1904
1905 DEBUG(10,("regdb_fetch_values: Looking for values of key [%s]\n", key));
1906
1907 if (!regdb_key_exists(db, key)) {
1908 DEBUG(10, ("regb_fetch_values: key [%s] does not exist\n",
1909 key));
1910 ret = -1;
1911 goto done;
1912 }
1913
1914 keystr = talloc_asprintf(ctx, "%s\\%s", REG_VALUE_PREFIX, key);
1915 if (!keystr) {
1916 goto done;
1917 }
1918
1919 ZERO_STRUCT(value);
1920 count = 0;
1921 seqnum[0] = dbwrap_get_seqnum(db);
1922
1923 do {
1924 count++;
1925 TALLOC_FREE(value.dptr);
1926 value = regdb_fetch_key_internal(db, ctx, keystr);
1927 seqnum[count % 2] = dbwrap_get_seqnum(db);
1928 } while (seqnum[0] != seqnum[1]);
1929
1930 if (count > 1) {
1931 DEBUG(5, ("regdb_fetch_values_internal: it took %d attempts "
1932 "to fetch key '%s' with constant seqnum\n",
1933 count, key));
1934 }
1935
1936 werr = regval_ctr_set_seqnum(values, seqnum[0]);
1937 if (!W_ERROR_IS_OK(werr)) {
1938 goto done;
1939 }
1940
1941 if (!value.dptr) {
1942 /* all keys have zero values by default */
1943 goto done;
1944 }
1945
1946 regdb_unpack_values(values, value.dptr, value.dsize);
1947 ret = regval_ctr_numvals(values);
1948
1949 done:
1950 TALLOC_FREE(ctx);
1951 return ret;
1952 }
1953
1954 static int regdb_fetch_values(const char* key, struct regval_ctr *values)
1955 {
1956 return regdb_fetch_values_internal(regdb, key, values);
1957 }
1958
1959 static NTSTATUS regdb_store_values_internal(struct db_context *db,
1960 const char *key,
1961 struct regval_ctr *values)
1962 {
1963 TDB_DATA old_data, data;
1964 char *keystr = NULL;
1965 TALLOC_CTX *ctx = talloc_stackframe();
1966 int len;
1967 NTSTATUS status;
1968 WERROR werr;
1969
1970 DEBUG(10,("regdb_store_values: Looking for values of key [%s]\n", key));
1971
1972 if (!regdb_key_exists(db, key)) {
1973 status = NT_STATUS_NOT_FOUND;
1974 goto done;
1975 }
1976
1977 if (regval_ctr_numvals(values) == 0) {
1978 werr = regdb_delete_values(db, key);
1979 if (!W_ERROR_IS_OK(werr)) {
1980 status = werror_to_ntstatus(werr);
1981 goto done;
1982 }
1983
1984 /*
1985 * update the seqnum in the cache to prevent the next read
1986 * from going to disk
1987 */
1988 werr = regval_ctr_set_seqnum(values, dbwrap_get_seqnum(db));
1989 status = werror_to_ntstatus(werr);
1990 goto done;
1991 }
1992
1993 ZERO_STRUCT(data);
1994
1995 len = regdb_pack_values(values, data.dptr, data.dsize);
1996 if (len <= 0) {
1997 DEBUG(0,("regdb_store_values: unable to pack values. len <= 0\n"));
1998 status = NT_STATUS_UNSUCCESSFUL;
1999 goto done;
2000 }
2001
2002 data.dptr = talloc_array(ctx, uint8_t, len);
2003 data.dsize = len;
2004
2005 len = regdb_pack_values(values, data.dptr, data.dsize);
2006
2007 SMB_ASSERT( len == data.dsize );
2008
2009 keystr = talloc_asprintf(ctx, "%s\\%s", REG_VALUE_PREFIX, key );
2010 if (!keystr) {
2011 status = NT_STATUS_NO_MEMORY;
2012 goto done;
2013 }
2014 keystr = normalize_reg_path(ctx, keystr);
2015 if (!keystr) {
2016 status = NT_STATUS_NO_MEMORY;
2017 goto done;
2018 }
2019
2020 status = dbwrap_fetch_bystring(db, ctx, keystr, &old_data);
2021
2022 if (NT_STATUS_IS_OK(status)
2023 && (old_data.dptr != NULL)
2024 && (old_data.dsize == data.dsize)
2025 && (memcmp(old_data.dptr, data.dptr, data.dsize) == 0))
2026 {
2027 status = NT_STATUS_OK;
2028 goto done;
2029 }
2030
2031 status = dbwrap_trans_store_bystring(db, keystr, data, TDB_REPLACE);
2032 if (!NT_STATUS_IS_OK(status)) {
2033 DEBUG(0, ("regdb_store_values_internal: error storing: %s\n", nt_errstr(status)));
2034 goto done;
2035 }
2036
2037 /*
2038 * update the seqnum in the cache to prevent the next read
2039 * from going to disk
2040 */
2041 werr = regval_ctr_set_seqnum(values, dbwrap_get_seqnum(db));
2042 status = werror_to_ntstatus(werr);
2043
2044 done:
2045 TALLOC_FREE(ctx);
2046 return status;
2047 }
2048
2049 struct regdb_store_values_ctx {
2050 const char *key;
2051 struct regval_ctr *values;
2052 };
2053
2054 static NTSTATUS regdb_store_values_action(struct db_context *db,
2055 void *private_data)
2056 {
2057 NTSTATUS status;
2058 struct regdb_store_values_ctx *ctx =
2059 (struct regdb_store_values_ctx *)private_data;
2060
2061 status = regdb_store_values_internal(db, ctx->key, ctx->values);
2062
2063 return status;
2064 }
2065
2066 static bool regdb_store_values(const char *key, struct regval_ctr *values)
2067 {
2068 WERROR werr;
2069 struct regdb_store_values_ctx ctx;
2070
2071 ctx.key = key;
2072 ctx.values = values;
2073
2074 werr = regdb_trans_do(regdb, regdb_store_values_action, &ctx);
2075
2076 return W_ERROR_IS_OK(werr);
2077 }
2078
2079 static WERROR regdb_get_secdesc(TALLOC_CTX *mem_ctx, const char *key,
2080 struct security_descriptor **psecdesc)
2081 {
2082 char *tdbkey;
2083 TDB_DATA data;
2084 NTSTATUS status;
2085 TALLOC_CTX *tmp_ctx = talloc_stackframe();
2086 WERROR err = WERR_OK;
2087
2088 DEBUG(10, ("regdb_get_secdesc: Getting secdesc of key [%s]\n", key));
2089
2090 if (!regdb_key_exists(regdb, key)) {
2091 err = WERR_BADFILE;
2092 goto done;
2093 }
2094
2095 tdbkey = talloc_asprintf(tmp_ctx, "%s\\%s", REG_SECDESC_PREFIX, key);
2096 if (tdbkey == NULL) {
2097 err = WERR_NOMEM;
2098 goto done;
2099 }
2100
2101 tdbkey = normalize_reg_path(tmp_ctx, tdbkey);
2102 if (tdbkey == NULL) {
2103 err = WERR_NOMEM;
2104 goto done;
2105 }
2106
2107 status = dbwrap_fetch_bystring(regdb, tmp_ctx, tdbkey, &data);
2108 if (!NT_STATUS_IS_OK(status)) {
2109 err = WERR_BADFILE;
2110 goto done;
2111 }
2112
2113 status = unmarshall_sec_desc(mem_ctx, (uint8_t *)data.dptr, data.dsize,
2114 psecdesc);
2115
2116 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_MEMORY)) {
2117 err = WERR_NOMEM;
2118 } else if (!NT_STATUS_IS_OK(status)) {
2119 err = WERR_REG_CORRUPT;
2120 }
2121
2122 done:
2123 TALLOC_FREE(tmp_ctx);
2124 return err;
2125 }
2126
2127 struct regdb_set_secdesc_ctx {
2128 const char *key;
2129 struct security_descriptor *secdesc;
2130 };
2131
2132 static NTSTATUS regdb_set_secdesc_action(struct db_context *db,
2133 void *private_data)
2134 {
2135 char *tdbkey;
2136 NTSTATUS status;
2137 TDB_DATA tdbdata;
2138 struct regdb_set_secdesc_ctx *ctx =
2139 (struct regdb_set_secdesc_ctx *)private_data;
2140 TALLOC_CTX *frame = talloc_stackframe();
2141
2142 tdbkey = talloc_asprintf(frame, "%s\\%s", REG_SECDESC_PREFIX, ctx->key);
2143 if (tdbkey == NULL) {
2144 status = NT_STATUS_NO_MEMORY;
2145 goto done;
2146 }
2147
2148 tdbkey = normalize_reg_path(frame, tdbkey);
2149 if (tdbkey == NULL) {
2150 status = NT_STATUS_NO_MEMORY;
2151 goto done;
2152 }
2153
2154 if (ctx->secdesc == NULL) {
2155 /* assuming a delete */
2156 status = dbwrap_delete_bystring(db, tdbkey);
2157 goto done;
2158 }
2159
2160 status = marshall_sec_desc(frame, ctx->secdesc, &tdbdata.dptr,
2161 &tdbdata.dsize);
2162 if (!NT_STATUS_IS_OK(status)) {
2163 goto done;
2164 }
2165
2166 status = dbwrap_store_bystring(db, tdbkey, tdbdata, 0);
2167
2168 done:
2169 TALLOC_FREE(frame);
2170 return status;
2171 }
2172
2173 static WERROR regdb_set_secdesc(const char *key,
2174 struct security_descriptor *secdesc)
2175 {
2176 WERROR err;
2177 struct regdb_set_secdesc_ctx ctx;
2178
2179 if (!regdb_key_exists(regdb, key)) {
2180 err = WERR_BADFILE;
2181 goto done;
2182 }
2183
2184 ctx.key = key;
2185 ctx.secdesc = secdesc;
2186
2187 err = regdb_trans_do(regdb, regdb_set_secdesc_action, &ctx);
2188
2189 done:
2190 return err;
2191 }
2192
2193 static bool regdb_subkeys_need_update(struct regsubkey_ctr *subkeys)
2194 {
2195 return (regdb_get_seqnum() != regsubkey_ctr_get_seqnum(subkeys));
2196 }
2197
2198 static bool regdb_values_need_update(struct regval_ctr *values)
2199 {
2200 return (regdb_get_seqnum() != regval_ctr_get_seqnum(values));
2201 }
2202
2203 /*
2204 * Table of function pointers for default access
2205 */
2206
2207 struct registry_ops regdb_ops = {
2208 .fetch_subkeys = regdb_fetch_keys,
2209 .fetch_values = regdb_fetch_values,
2210 .store_subkeys = regdb_store_keys,
2211 .store_values = regdb_store_values,
2212 .create_subkey = regdb_create_subkey,
2213 .delete_subkey = regdb_delete_subkey,
2214 .get_secdesc = regdb_get_secdesc,
2215 .set_secdesc = regdb_set_secdesc,
2216 .subkeys_need_update = regdb_subkeys_need_update,
2217 .values_need_update = regdb_values_need_update
2218 };
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