2 * Unix SMB/CIFS implementation.
3 * Virtual Windows Registry Layer
4 * Copyright (C) Gerald Carter 2002-2005
5 * Copyright (C) Michael Adam 2007-2009
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 /* Implementation of internal registry database functions. */
24 #include "system/filesys.h"
27 #include "reg_util_internal.h"
28 #include "reg_backend_db.h"
29 #include "reg_objects.h"
30 #include "nt_printing.h"
35 #define DBGC_CLASS DBGC_REGISTRY
37 static struct db_context
*regdb
= NULL
;
38 static int regdb_refcount
;
40 static bool regdb_key_exists(struct db_context
*db
, const char *key
);
41 static bool regdb_key_is_base_key(const char *key
);
42 static WERROR
regdb_fetch_keys_internal(struct db_context
*db
, const char *key
,
43 struct regsubkey_ctr
*ctr
);
44 static bool regdb_store_keys_internal(struct db_context
*db
, const char *key
,
45 struct regsubkey_ctr
*ctr
);
46 static int regdb_fetch_values_internal(struct db_context
*db
, const char* key
,
47 struct regval_ctr
*values
);
48 static bool regdb_store_values_internal(struct db_context
*db
, const char *key
,
49 struct regval_ctr
*values
);
51 /* List the deepest path into the registry. All part components will be created.*/
53 /* If you want to have a part of the path controlled by the tdb and part by
54 a virtual registry db (e.g. printing), then you have to list the deepest path.
55 For example,"HKLM/SOFTWARE/Microsoft/Windows NT/CurrentVersion/Print"
56 allows the reg_db backend to handle everything up to
57 "HKLM/SOFTWARE/Microsoft/Windows NT/CurrentVersion" and then we'll hook
58 the reg_printing backend onto the last component of the path (see
59 KEY_PRINTING_2K in include/rpc_reg.h) --jerry */
61 static const char *builtin_registry_paths
[] = {
65 KEY_PRINTING
"\\Forms",
66 KEY_PRINTING
"\\Printers",
67 KEY_PRINTING
"\\Environments\\Windows NT x86\\Print Processors\\winprint",
74 KEY_SAMBA_GROUP_POLICY
,
75 KEY_GP_MACHINE_POLICY
,
76 KEY_GP_MACHINE_WIN_POLICY
,
79 KEY_GP_USER_WIN_POLICY
,
80 "HKLM\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\GPExtensions",
81 "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Print\\Monitors",
83 "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\DefaultUserConfiguration",
92 struct builtin_regkey_value
{
94 const char *valuename
;
102 static struct builtin_regkey_value builtin_registry_values
[] = {
103 { KEY_PRINTING_PORTS
,
104 SAMBA_PRINTER_PORT_NAME
, REG_SZ
, { "" } },
106 "DefaultSpoolDirectory", REG_SZ
, { "C:\\Windows\\System32\\Spool\\Printers" } },
108 "DisplayName", REG_SZ
, { "Event Log" } },
110 "ErrorControl", REG_DWORD
, { (char*)0x00000001 } },
111 { NULL
, NULL
, 0, { NULL
} }
115 * Initialize a key in the registry:
116 * create each component key of the specified path.
118 static WERROR
init_registry_key_internal(struct db_context
*db
,
119 const char *add_path
)
122 TALLOC_CTX
*frame
= talloc_stackframe();
125 char *remaining
= NULL
;
128 struct regsubkey_ctr
*subkeys
;
131 DEBUG(6, ("init_registry_key: Adding [%s]\n", add_path
));
133 path
= talloc_strdup(frame
, add_path
);
134 base
= talloc_strdup(frame
, "");
135 if (!path
|| !base
) {
141 while (next_token_talloc(frame
, &p
, &keyname
, "\\")) {
143 /* build up the registry path from the components */
146 base
= talloc_asprintf(frame
, "%s\\", base
);
152 base
= talloc_asprintf_append(base
, "%s", keyname
);
158 /* get the immediate subkeyname (if we have one ) */
160 subkeyname
= talloc_strdup(frame
, "");
166 remaining
= talloc_strdup(frame
, p
);
173 if (!next_token_talloc(frame
, &p2
,
176 subkeyname
= talloc_strdup(frame
,p2
);
184 DEBUG(10,("init_registry_key: Storing key [%s] with "
185 "subkey [%s]\n", base
,
186 *subkeyname
? subkeyname
: "NULL"));
188 /* we don't really care if the lookup succeeds or not
189 * since we are about to update the record.
190 * We just want any subkeys already present */
192 werr
= regsubkey_ctr_init(frame
, &subkeys
);
193 if (!W_ERROR_IS_OK(werr
)) {
194 DEBUG(0,("talloc() failure!\n"));
198 werr
= regdb_fetch_keys_internal(db
, base
, subkeys
);
199 if (!W_ERROR_IS_OK(werr
) &&
200 !W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
))
206 werr
= regsubkey_ctr_addkey(subkeys
, subkeyname
);
207 if (!W_ERROR_IS_OK(werr
)) {
211 if (!regdb_store_keys_internal(db
, base
, subkeys
)) {
212 werr
= WERR_CAN_NOT_COMPLETE
;
224 struct init_registry_key_context
{
225 const char *add_path
;
228 static NTSTATUS
init_registry_key_action(struct db_context
*db
,
231 struct init_registry_key_context
*init_ctx
=
232 (struct init_registry_key_context
*)private_data
;
234 return werror_to_ntstatus(init_registry_key_internal(
235 db
, init_ctx
->add_path
));
239 * Initialize a key in the registry:
240 * create each component key of the specified path,
241 * wrapped in one db transaction.
243 WERROR
init_registry_key(const char *add_path
)
245 struct init_registry_key_context init_ctx
;
247 if (regdb_key_exists(regdb
, add_path
)) {
251 init_ctx
.add_path
= add_path
;
253 return ntstatus_to_werror(dbwrap_trans_do(regdb
,
254 init_registry_key_action
,
258 /***********************************************************************
259 Open the registry data in the tdb
260 ***********************************************************************/
262 static void regdb_ctr_add_value(struct regval_ctr
*ctr
,
263 struct builtin_regkey_value
*value
)
265 switch(value
->type
) {
267 regval_ctr_addvalue(ctr
, value
->valuename
, REG_DWORD
,
268 (uint8_t *)&value
->data
.dw_value
,
273 regval_ctr_addvalue_sz(ctr
, value
->valuename
,
278 DEBUG(0, ("regdb_ctr_add_value: invalid value type in "
279 "registry values [%d]\n", value
->type
));
283 static NTSTATUS
init_registry_data_action(struct db_context
*db
,
287 TALLOC_CTX
*frame
= talloc_stackframe();
288 struct regval_ctr
*values
;
291 /* loop over all of the predefined paths and add each component */
293 for (i
=0; builtin_registry_paths
[i
] != NULL
; i
++) {
294 if (regdb_key_exists(db
, builtin_registry_paths
[i
])) {
297 status
= werror_to_ntstatus(init_registry_key_internal(db
,
298 builtin_registry_paths
[i
]));
299 if (!NT_STATUS_IS_OK(status
)) {
304 /* loop over all of the predefined values and add each component */
306 for (i
=0; builtin_registry_values
[i
].path
!= NULL
; i
++) {
309 werr
= regval_ctr_init(frame
, &values
);
310 if (!W_ERROR_IS_OK(werr
)) {
311 status
= werror_to_ntstatus(werr
);
315 regdb_fetch_values_internal(db
,
316 builtin_registry_values
[i
].path
,
319 /* preserve existing values across restarts. Only add new ones */
321 if (!regval_ctr_key_exists(values
,
322 builtin_registry_values
[i
].valuename
))
324 regdb_ctr_add_value(values
,
325 &builtin_registry_values
[i
]);
326 regdb_store_values_internal(db
,
327 builtin_registry_values
[i
].path
,
333 status
= NT_STATUS_OK
;
341 WERROR
init_registry_data(void)
344 TALLOC_CTX
*frame
= talloc_stackframe();
345 struct regval_ctr
*values
;
349 * First, check for the existence of the needed keys and values.
350 * If all do already exist, we can save the writes.
352 for (i
=0; builtin_registry_paths
[i
] != NULL
; i
++) {
353 if (!regdb_key_exists(regdb
, builtin_registry_paths
[i
])) {
358 for (i
=0; builtin_registry_values
[i
].path
!= NULL
; i
++) {
359 werr
= regval_ctr_init(frame
, &values
);
360 W_ERROR_NOT_OK_GOTO_DONE(werr
);
362 regdb_fetch_values_internal(regdb
,
363 builtin_registry_values
[i
].path
,
365 if (!regval_ctr_key_exists(values
,
366 builtin_registry_values
[i
].valuename
))
381 * There are potentially quite a few store operations which are all
382 * indiviually wrapped in tdb transactions. Wrapping them in a single
383 * transaction gives just a single transaction_commit() to actually do
384 * its fsync()s. See tdb/common/transaction.c for info about nested
385 * transaction behaviour.
388 werr
= ntstatus_to_werror(dbwrap_trans_do(regdb
,
389 init_registry_data_action
,
397 static int regdb_normalize_keynames_fn(struct db_record
*rec
,
400 TALLOC_CTX
*mem_ctx
= talloc_tos();
404 if (rec
->key
.dptr
== NULL
|| rec
->key
.dsize
== 0) {
408 keyname
= strchr((const char *) rec
->key
.dptr
, '/');
410 struct db_record new_rec
;
412 keyname
= talloc_string_sub(mem_ctx
,
413 (const char *) rec
->key
.dptr
,
417 DEBUG(2, ("regdb_normalize_keynames_fn: Convert %s to %s\n",
418 (const char *) rec
->key
.dptr
,
421 new_rec
.value
= rec
->value
;
422 new_rec
.key
= string_term_tdb_data(keyname
);
423 new_rec
.private_data
= rec
->private_data
;
425 /* Delete the original record and store the normalized key */
426 status
= rec
->delete_rec(rec
);
427 if (!NT_STATUS_IS_OK(status
)) {
428 DEBUG(0,("regdb_normalize_keynames_fn: "
429 "tdb_delete for [%s] failed!\n",
434 status
= rec
->store(&new_rec
, new_rec
.value
, TDB_REPLACE
);
435 if (!NT_STATUS_IS_OK(status
)) {
436 DEBUG(0,("regdb_normalize_keynames_fn: "
437 "failed to store new record for [%s]!\n",
446 static WERROR
regdb_store_regdb_version(uint32_t version
)
449 const char *version_keyname
= "INFO/version";
452 return WERR_CAN_NOT_COMPLETE
;
455 status
= dbwrap_trans_store_int32(regdb
, version_keyname
, version
);
456 if (!NT_STATUS_IS_OK(status
)) {
457 DEBUG(1, ("regdb_store_regdb_version: error storing %s = %d: %s\n",
458 version_keyname
, version
, nt_errstr(status
)));
459 return ntstatus_to_werror(status
);
461 DEBUG(10, ("regdb_store_regdb_version: stored %s = %d\n",
462 version_keyname
, version
));
467 static WERROR
regdb_upgrade_v1_to_v2(void)
473 mem_ctx
= talloc_stackframe();
474 if (mem_ctx
== NULL
) {
478 rc
= regdb
->traverse(regdb
, regdb_normalize_keynames_fn
, mem_ctx
);
480 talloc_destroy(mem_ctx
);
483 return WERR_REG_IO_FAILURE
;
486 werr
= regdb_store_regdb_version(REGVER_V2
);
490 /***********************************************************************
491 Open the registry database
492 ***********************************************************************/
494 WERROR
regdb_init(void)
496 const char *vstring
= "INFO/version";
497 uint32 vers_id
, expected_version
;
501 DEBUG(10, ("regdb_init: incrementing refcount (%d->%d)\n",
502 regdb_refcount
, regdb_refcount
+1));
507 regdb
= db_open(NULL
, state_path("registry.tdb"), 0,
508 REG_TDB_FLAGS
, O_RDWR
, 0600);
510 regdb
= db_open(NULL
, state_path("registry.tdb"), 0,
511 REG_TDB_FLAGS
, O_RDWR
|O_CREAT
, 0600);
513 werr
= ntstatus_to_werror(map_nt_error_from_unix(errno
));
514 DEBUG(1,("regdb_init: Failed to open registry %s (%s)\n",
515 state_path("registry.tdb"), strerror(errno
) ));
519 DEBUG(10,("regdb_init: Successfully created registry tdb\n"));
523 DEBUG(10, ("regdb_init: registry db openend. refcount reset (%d)\n",
526 expected_version
= REGVER_V2
;
528 vers_id
= dbwrap_fetch_int32(regdb
, vstring
);
530 DEBUG(10, ("regdb_init: registry version uninitialized "
531 "(got %d), initializing to version %d\n",
532 vers_id
, expected_version
));
534 werr
= regdb_store_regdb_version(expected_version
);
538 if (vers_id
> expected_version
|| vers_id
== 0) {
539 DEBUG(1, ("regdb_init: unknown registry version %d "
540 "(code version = %d), refusing initialization\n",
541 vers_id
, expected_version
));
542 return WERR_CAN_NOT_COMPLETE
;
545 if (vers_id
== REGVER_V1
) {
546 DEBUG(10, ("regdb_init: got registry db version %d, upgrading "
547 "to version %d\n", REGVER_V1
, REGVER_V2
));
549 if (regdb
->transaction_start(regdb
) != 0) {
550 return WERR_REG_IO_FAILURE
;
553 werr
= regdb_upgrade_v1_to_v2();
554 if (!W_ERROR_IS_OK(werr
)) {
555 regdb
->transaction_cancel(regdb
);
559 if (regdb
->transaction_commit(regdb
) != 0) {
560 return WERR_REG_IO_FAILURE
;
566 /* future upgrade code should go here */
571 /***********************************************************************
572 Open the registry. Must already have been initialized by regdb_init()
573 ***********************************************************************/
575 WERROR
regdb_open( void )
577 WERROR result
= WERR_OK
;
580 DEBUG(10, ("regdb_open: incrementing refcount (%d->%d)\n",
581 regdb_refcount
, regdb_refcount
+1));
588 regdb
= db_open(NULL
, state_path("registry.tdb"), 0,
589 REG_TDB_FLAGS
, O_RDWR
, 0600);
591 result
= ntstatus_to_werror( map_nt_error_from_unix( errno
) );
592 DEBUG(0,("regdb_open: Failed to open %s! (%s)\n",
593 state_path("registry.tdb"), strerror(errno
) ));
599 DEBUG(10, ("regdb_open: registry db opened. refcount reset (%d)\n",
605 /***********************************************************************
606 ***********************************************************************/
608 int regdb_close( void )
610 if (regdb_refcount
== 0) {
616 DEBUG(10, ("regdb_close: decrementing refcount (%d->%d)\n",
617 regdb_refcount
+1, regdb_refcount
));
619 if ( regdb_refcount
> 0 )
622 SMB_ASSERT( regdb_refcount
>= 0 );
628 WERROR
regdb_transaction_start(void)
630 return (regdb
->transaction_start(regdb
) == 0) ?
631 WERR_OK
: WERR_REG_IO_FAILURE
;
634 WERROR
regdb_transaction_commit(void)
636 return (regdb
->transaction_commit(regdb
) == 0) ?
637 WERR_OK
: WERR_REG_IO_FAILURE
;
640 WERROR
regdb_transaction_cancel(void)
642 return (regdb
->transaction_cancel(regdb
) == 0) ?
643 WERR_OK
: WERR_REG_IO_FAILURE
;
646 /***********************************************************************
647 return the tdb sequence number of the registry tdb.
648 this is an indicator for the content of the registry
649 having changed. it will change upon regdb_init, too, though.
650 ***********************************************************************/
651 int regdb_get_seqnum(void)
653 return regdb
->get_seqnum(regdb
);
657 static WERROR
regdb_delete_key_with_prefix(struct db_context
*db
,
662 WERROR werr
= WERR_NOMEM
;
663 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
665 if (keyname
== NULL
) {
666 werr
= WERR_INVALID_PARAM
;
670 if (prefix
== NULL
) {
671 path
= discard_const_p(char, keyname
);
673 path
= talloc_asprintf(mem_ctx
, "%s\\%s", prefix
, keyname
);
679 path
= normalize_reg_path(mem_ctx
, path
);
684 werr
= ntstatus_to_werror(dbwrap_delete_bystring(db
, path
));
686 /* treat "not" found" as ok */
687 if (W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
)) {
692 talloc_free(mem_ctx
);
697 static WERROR
regdb_delete_values(struct db_context
*db
, const char *keyname
)
699 return regdb_delete_key_with_prefix(db
, keyname
, REG_VALUE_PREFIX
);
702 static WERROR
regdb_delete_secdesc(struct db_context
*db
, const char *keyname
)
704 return regdb_delete_key_with_prefix(db
, keyname
, REG_SECDESC_PREFIX
);
707 static WERROR
regdb_delete_subkeylist(struct db_context
*db
, const char *keyname
)
709 return regdb_delete_key_with_prefix(db
, keyname
, NULL
);
712 static WERROR
regdb_delete_key_lists(struct db_context
*db
, const char *keyname
)
716 werr
= regdb_delete_values(db
, keyname
);
717 if (!W_ERROR_IS_OK(werr
)) {
718 DEBUG(1, (__location__
" Deleting %s\\%s failed: %s\n",
719 REG_VALUE_PREFIX
, keyname
, win_errstr(werr
)));
723 werr
= regdb_delete_secdesc(db
, keyname
);
724 if (!W_ERROR_IS_OK(werr
)) {
725 DEBUG(1, (__location__
" Deleting %s\\%s failed: %s\n",
726 REG_SECDESC_PREFIX
, keyname
, win_errstr(werr
)));
730 werr
= regdb_delete_subkeylist(db
, keyname
);
731 if (!W_ERROR_IS_OK(werr
)) {
732 DEBUG(1, (__location__
" Deleting %s failed: %s\n",
733 keyname
, win_errstr(werr
)));
741 /***********************************************************************
742 Add subkey strings to the registry tdb under a defined key
743 fmt is the same format as tdb_pack except this function only supports
745 ***********************************************************************/
747 static WERROR
regdb_store_keys_internal2(struct db_context
*db
,
749 struct regsubkey_ctr
*ctr
)
752 uint8
*buffer
= NULL
;
755 uint32 num_subkeys
= regsubkey_ctr_numkeys(ctr
);
756 char *keyname
= NULL
;
757 TALLOC_CTX
*ctx
= talloc_stackframe();
761 werr
= WERR_INVALID_PARAM
;
765 keyname
= talloc_strdup(ctx
, key
);
771 keyname
= normalize_reg_path(ctx
, keyname
);
777 /* allocate some initial memory */
779 buffer
= (uint8
*)SMB_MALLOC(1024);
780 if (buffer
== NULL
) {
787 /* store the number of subkeys */
789 len
+= tdb_pack(buffer
+len
, buflen
-len
, "d", num_subkeys
);
791 /* pack all the strings */
793 for (i
=0; i
<num_subkeys
; i
++) {
796 thistime
= tdb_pack(buffer
+len
, buflen
-len
, "f",
797 regsubkey_ctr_specific_key(ctr
, i
));
798 if (len
+thistime
> buflen
) {
801 * tdb_pack hasn't done anything because of the short
802 * buffer, allocate extra space.
804 buffer
= SMB_REALLOC_ARRAY(buffer
, uint8_t,
807 DEBUG(0, ("regdb_store_keys: Failed to realloc "
808 "memory of size [%u]\n",
809 (unsigned int)(len
+thistime
)*2));
813 buflen
= (len
+thistime
)*2;
814 thistime2
= tdb_pack(
815 buffer
+len
, buflen
-len
, "f",
816 regsubkey_ctr_specific_key(ctr
, i
));
817 if (thistime2
!= thistime
) {
818 DEBUG(0, ("tdb_pack failed\n"));
819 werr
= WERR_CAN_NOT_COMPLETE
;
826 /* finally write out the data */
830 werr
= ntstatus_to_werror(dbwrap_store_bystring(db
, keyname
, dbuf
,
832 W_ERROR_NOT_OK_GOTO_DONE(werr
);
835 * Delete a sorted subkey cache for regdb_key_exists, will be
836 * recreated automatically
838 keyname
= talloc_asprintf(ctx
, "%s\\%s", REG_SORTED_SUBKEYS_PREFIX
,
840 if (keyname
== NULL
) {
845 werr
= ntstatus_to_werror(dbwrap_delete_bystring(db
, keyname
));
847 /* don't treat WERR_NOT_FOUND as an error here */
848 if (W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
)) {
858 /***********************************************************************
859 Store the new subkey record and create any child key records that
860 do not currently exist
861 ***********************************************************************/
863 struct regdb_store_keys_context
{
865 struct regsubkey_ctr
*ctr
;
868 static NTSTATUS
regdb_store_keys_action(struct db_context
*db
,
871 struct regdb_store_keys_context
*store_ctx
;
875 struct regsubkey_ctr
*subkeys
= NULL
, *old_subkeys
= NULL
;
876 char *oldkeyname
= NULL
;
877 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
879 store_ctx
= (struct regdb_store_keys_context
*)private_data
;
882 * Re-fetch the old keys inside the transaction
885 werr
= regsubkey_ctr_init(mem_ctx
, &old_subkeys
);
886 W_ERROR_NOT_OK_GOTO_DONE(werr
);
888 werr
= regdb_fetch_keys_internal(db
, store_ctx
->key
, old_subkeys
);
889 if (!W_ERROR_IS_OK(werr
) &&
890 !W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
))
896 * Make the store operation as safe as possible without transactions:
898 * (1) For each subkey removed from ctr compared with old_subkeys:
900 * (a) First delete the value db entry.
902 * (b) Next delete the secdesc db record.
904 * (c) Then delete the subkey list entry.
906 * (2) Now write the list of subkeys of the parent key,
907 * deleting removed entries and adding new ones.
909 * (3) Finally create the subkey list entries for the added keys.
911 * This way if we crash half-way in between deleting the subkeys
912 * and storing the parent's list of subkeys, no old data can pop up
913 * out of the blue when re-adding keys later on.
916 /* (1) delete removed keys' lists (values/secdesc/subkeys) */
918 num_subkeys
= regsubkey_ctr_numkeys(old_subkeys
);
919 for (i
=0; i
<num_subkeys
; i
++) {
920 oldkeyname
= regsubkey_ctr_specific_key(old_subkeys
, i
);
922 if (regsubkey_ctr_key_exists(store_ctx
->ctr
, oldkeyname
)) {
924 * It's still around, don't delete
929 path
= talloc_asprintf(mem_ctx
, "%s\\%s", store_ctx
->key
,
936 werr
= regdb_delete_key_lists(db
, path
);
937 W_ERROR_NOT_OK_GOTO_DONE(werr
);
942 TALLOC_FREE(old_subkeys
);
944 /* (2) store the subkey list for the parent */
946 werr
= regdb_store_keys_internal2(db
, store_ctx
->key
, store_ctx
->ctr
);
947 if (!W_ERROR_IS_OK(werr
)) {
948 DEBUG(0,("regdb_store_keys: Failed to store new subkey list "
949 "for parent [%s]: %s\n", store_ctx
->key
,
954 /* (3) now create records for any subkeys that don't already exist */
956 num_subkeys
= regsubkey_ctr_numkeys(store_ctx
->ctr
);
958 if (num_subkeys
== 0) {
959 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
960 W_ERROR_NOT_OK_GOTO_DONE(werr
);
962 werr
= regdb_store_keys_internal2(db
, store_ctx
->key
, subkeys
);
963 if (!W_ERROR_IS_OK(werr
)) {
964 DEBUG(0,("regdb_store_keys: Failed to store "
965 "new record for key [%s]: %s\n",
966 store_ctx
->key
, win_errstr(werr
)));
969 TALLOC_FREE(subkeys
);
972 for (i
=0; i
<num_subkeys
; i
++) {
973 path
= talloc_asprintf(mem_ctx
, "%s\\%s", store_ctx
->key
,
974 regsubkey_ctr_specific_key(store_ctx
->ctr
, i
));
979 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
980 W_ERROR_NOT_OK_GOTO_DONE(werr
);
982 werr
= regdb_fetch_keys_internal(db
, path
, subkeys
);
983 if (!W_ERROR_IS_OK(werr
)) {
984 /* create a record with 0 subkeys */
985 werr
= regdb_store_keys_internal2(db
, path
, subkeys
);
986 if (!W_ERROR_IS_OK(werr
)) {
987 DEBUG(0,("regdb_store_keys: Failed to store "
988 "new record for key [%s]: %s\n", path
,
994 TALLOC_FREE(subkeys
);
1001 talloc_free(mem_ctx
);
1002 return werror_to_ntstatus(werr
);
1005 static bool regdb_store_keys_internal(struct db_context
*db
, const char *key
,
1006 struct regsubkey_ctr
*ctr
)
1008 int num_subkeys
, old_num_subkeys
, i
;
1009 struct regsubkey_ctr
*old_subkeys
= NULL
;
1010 TALLOC_CTX
*ctx
= talloc_stackframe();
1013 struct regdb_store_keys_context store_ctx
;
1015 if (!regdb_key_is_base_key(key
) && !regdb_key_exists(db
, key
)) {
1020 * fetch a list of the old subkeys so we can determine if anything has
1024 werr
= regsubkey_ctr_init(ctx
, &old_subkeys
);
1025 if (!W_ERROR_IS_OK(werr
)) {
1026 DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
1030 werr
= regdb_fetch_keys_internal(db
, key
, old_subkeys
);
1031 if (!W_ERROR_IS_OK(werr
) &&
1032 !W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
))
1037 num_subkeys
= regsubkey_ctr_numkeys(ctr
);
1038 old_num_subkeys
= regsubkey_ctr_numkeys(old_subkeys
);
1039 if ((num_subkeys
&& old_num_subkeys
) &&
1040 (num_subkeys
== old_num_subkeys
)) {
1042 for (i
= 0; i
< num_subkeys
; i
++) {
1043 if (strcmp(regsubkey_ctr_specific_key(ctr
, i
),
1044 regsubkey_ctr_specific_key(old_subkeys
, i
))
1050 if (i
== num_subkeys
) {
1052 * Nothing changed, no point to even start a tdb
1061 TALLOC_FREE(old_subkeys
);
1063 store_ctx
.key
= key
;
1064 store_ctx
.ctr
= ctr
;
1066 werr
= ntstatus_to_werror(dbwrap_trans_do(db
,
1067 regdb_store_keys_action
,
1070 ret
= W_ERROR_IS_OK(werr
);
1078 bool regdb_store_keys(const char *key
, struct regsubkey_ctr
*ctr
)
1080 return regdb_store_keys_internal(regdb
, key
, ctr
);
1084 * create a subkey of a given key
1087 struct regdb_create_subkey_context
{
1092 static NTSTATUS
regdb_create_subkey_action(struct db_context
*db
,
1096 struct regdb_create_subkey_context
*create_ctx
;
1097 struct regsubkey_ctr
*subkeys
;
1098 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1100 create_ctx
= (struct regdb_create_subkey_context
*)private_data
;
1102 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
1103 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1105 werr
= regdb_fetch_keys_internal(db
, create_ctx
->key
, subkeys
);
1106 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1108 werr
= regsubkey_ctr_addkey(subkeys
, create_ctx
->subkey
);
1109 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1111 werr
= regdb_store_keys_internal2(db
, create_ctx
->key
, subkeys
);
1112 if (!W_ERROR_IS_OK(werr
)) {
1113 DEBUG(0, (__location__
" failed to store new subkey list for "
1114 "parent key %s: %s\n", create_ctx
->key
,
1119 talloc_free(mem_ctx
);
1120 return werror_to_ntstatus(werr
);
1123 static WERROR
regdb_create_subkey(const char *key
, const char *subkey
)
1126 struct regsubkey_ctr
*subkeys
;
1127 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1128 struct regdb_create_subkey_context create_ctx
;
1130 if (!regdb_key_is_base_key(key
) && !regdb_key_exists(regdb
, key
)) {
1131 werr
= WERR_NOT_FOUND
;
1135 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
1136 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1138 werr
= regdb_fetch_keys_internal(regdb
, key
, subkeys
);
1139 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1141 if (regsubkey_ctr_key_exists(subkeys
, subkey
)) {
1146 talloc_free(subkeys
);
1148 create_ctx
.key
= key
;
1149 create_ctx
.subkey
= subkey
;
1151 werr
= ntstatus_to_werror(dbwrap_trans_do(regdb
,
1152 regdb_create_subkey_action
,
1156 talloc_free(mem_ctx
);
1161 * create a subkey of a given key
1164 struct regdb_delete_subkey_context
{
1170 static NTSTATUS
regdb_delete_subkey_action(struct db_context
*db
,
1174 struct regdb_delete_subkey_context
*delete_ctx
;
1175 struct regsubkey_ctr
*subkeys
;
1176 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1178 delete_ctx
= (struct regdb_delete_subkey_context
*)private_data
;
1180 werr
= regdb_delete_key_lists(db
, delete_ctx
->path
);
1181 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1183 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
1184 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1186 werr
= regdb_fetch_keys_internal(db
, delete_ctx
->key
, subkeys
);
1187 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1189 werr
= regsubkey_ctr_delkey(subkeys
, delete_ctx
->subkey
);
1190 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1192 werr
= regdb_store_keys_internal2(db
, delete_ctx
->key
, subkeys
);
1193 if (!W_ERROR_IS_OK(werr
)) {
1194 DEBUG(0, (__location__
" failed to store new subkey_list for "
1195 "parent key %s: %s\n", delete_ctx
->key
,
1200 talloc_free(mem_ctx
);
1201 return werror_to_ntstatus(werr
);
1204 static WERROR
regdb_delete_subkey(const char *key
, const char *subkey
)
1208 struct regdb_delete_subkey_context delete_ctx
;
1209 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1211 if (!regdb_key_is_base_key(key
) && !regdb_key_exists(regdb
, key
)) {
1212 werr
= WERR_NOT_FOUND
;
1216 path
= talloc_asprintf(mem_ctx
, "%s\\%s", key
, subkey
);
1222 if (!regdb_key_exists(regdb
, path
)) {
1227 delete_ctx
.key
= key
;
1228 delete_ctx
.subkey
= subkey
;
1229 delete_ctx
.path
= path
;
1231 werr
= ntstatus_to_werror(dbwrap_trans_do(regdb
,
1232 regdb_delete_subkey_action
,
1236 talloc_free(mem_ctx
);
1240 static TDB_DATA
regdb_fetch_key_internal(struct db_context
*db
,
1241 TALLOC_CTX
*mem_ctx
, const char *key
)
1246 path
= normalize_reg_path(mem_ctx
, key
);
1248 return make_tdb_data(NULL
, 0);
1251 data
= dbwrap_fetch_bystring(db
, mem_ctx
, path
);
1259 * check whether a given key name represents a base key,
1260 * i.e one without a subkey separator ('\').
1262 static bool regdb_key_is_base_key(const char *key
)
1264 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1272 path
= normalize_reg_path(mem_ctx
, key
);
1274 DEBUG(0, ("out of memory! (talloc failed)\n"));
1278 if (*path
== '\0') {
1282 ret
= (strrchr(path
, '\\') == NULL
);
1285 TALLOC_FREE(mem_ctx
);
1290 * regdb_key_exists() is a very frequent operation. It can be quite
1291 * time-consuming to fully fetch the parent's subkey list, talloc_strdup all
1292 * subkeys and then compare the keyname linearly to all the parent's subkeys.
1294 * The following code tries to make this operation as efficient as possible:
1295 * Per registry key we create a list of subkeys that is very efficient to
1296 * search for existence of a subkey. Its format is:
1298 * 4 bytes num_subkeys
1299 * 4*num_subkey bytes offset into the string array
1300 * then follows a sorted list of subkeys in uppercase
1302 * This record is created by create_sorted_subkeys() on demand if it does not
1303 * exist. scan_parent_subkeys() uses regdb->parse_record to search the sorted
1304 * list, the parsing code and the binary search can be found in
1305 * parent_subkey_scanner. The code uses parse_record() to avoid a memcpy of
1306 * the potentially large subkey record.
1308 * The sorted subkey record is deleted in regdb_store_keys_internal2 and
1309 * recreated on demand.
1312 static int cmp_keynames(char **p1
, char **p2
)
1314 return StrCaseCmp(*p1
, *p2
);
1317 struct create_sorted_subkeys_context
{
1319 const char *sorted_keyname
;
1322 static NTSTATUS
create_sorted_subkeys_action(struct db_context
*db
,
1325 char **sorted_subkeys
;
1326 struct regsubkey_ctr
*ctr
;
1333 struct create_sorted_subkeys_context
*sorted_ctx
;
1335 sorted_ctx
= (struct create_sorted_subkeys_context
*)private_data
;
1338 * In this function, we only treat failing of the actual write to
1339 * the db as a real error. All preliminary errors, at a stage when
1340 * nothing has been written to the DB yet are treated as success
1341 * to be committed (as an empty transaction).
1343 * The reason is that this (disposable) call might be nested in other
1344 * transactions. Doing a cancel here would destroy the possibility of
1345 * a transaction_commit for transactions that we might be wrapped in.
1348 status
= werror_to_ntstatus(regsubkey_ctr_init(talloc_tos(), &ctr
));
1349 if (!NT_STATUS_IS_OK(status
)) {
1350 /* don't treat this as an error */
1351 status
= NT_STATUS_OK
;
1355 status
= werror_to_ntstatus(regdb_fetch_keys_internal(db
,
1358 if (!NT_STATUS_IS_OK(status
)) {
1359 /* don't treat this as an error */
1360 status
= NT_STATUS_OK
;
1364 num_subkeys
= regsubkey_ctr_numkeys(ctr
);
1365 sorted_subkeys
= talloc_array(ctr
, char *, num_subkeys
);
1366 if (sorted_subkeys
== NULL
) {
1367 /* don't treat this as an error */
1371 len
= 4 + 4*num_subkeys
;
1373 for (i
= 0; i
< num_subkeys
; i
++) {
1374 sorted_subkeys
[i
] = talloc_strdup_upper(sorted_subkeys
,
1375 regsubkey_ctr_specific_key(ctr
, i
));
1376 if (sorted_subkeys
[i
] == NULL
) {
1377 /* don't treat this as an error */
1380 len
+= strlen(sorted_subkeys
[i
])+1;
1383 TYPESAFE_QSORT(sorted_subkeys
, num_subkeys
, cmp_keynames
);
1385 buf
= talloc_array(ctr
, char, len
);
1387 /* don't treat this as an error */
1390 p
= buf
+ 4 + 4*num_subkeys
;
1392 SIVAL(buf
, 0, num_subkeys
);
1394 for (i
=0; i
< num_subkeys
; i
++) {
1395 ptrdiff_t offset
= p
- buf
;
1396 SIVAL(buf
, 4 + 4*i
, offset
);
1397 strlcpy(p
, sorted_subkeys
[i
], len
-offset
);
1398 p
+= strlen(sorted_subkeys
[i
]) + 1;
1401 status
= dbwrap_store_bystring(
1402 db
, sorted_ctx
->sorted_keyname
, make_tdb_data((uint8_t *)buf
,
1411 static NTSTATUS
create_sorted_subkeys_internal(const char *key
,
1412 const char *sorted_keyname
)
1415 struct create_sorted_subkeys_context sorted_ctx
;
1417 sorted_ctx
.key
= key
;
1418 sorted_ctx
.sorted_keyname
= sorted_keyname
;
1420 status
= dbwrap_trans_do(regdb
,
1421 create_sorted_subkeys_action
,
1427 struct scan_subkey_state
{
1433 static int parent_subkey_scanner(TDB_DATA key
, TDB_DATA data
,
1436 struct scan_subkey_state
*state
=
1437 (struct scan_subkey_state
*)private_data
;
1438 uint32_t num_subkeys
;
1441 if (data
.dsize
< sizeof(uint32_t)) {
1445 state
->scanned
= true;
1446 state
->found
= false;
1448 tdb_unpack(data
.dptr
, data
.dsize
, "d", &num_subkeys
);
1454 uint32_t idx
= (l
+u
)/2;
1455 char *s
= (char *)data
.dptr
+ IVAL(data
.dptr
, 4 + 4*idx
);
1456 int comparison
= strcmp(state
->name
, s
);
1458 if (comparison
< 0) {
1460 } else if (comparison
> 0) {
1463 state
->found
= true;
1470 static bool scan_parent_subkeys(struct db_context
*db
, const char *parent
,
1475 struct scan_subkey_state state
= { 0, };
1476 bool result
= false;
1481 path
= normalize_reg_path(talloc_tos(), parent
);
1486 key
= talloc_asprintf(talloc_tos(), "%s\\%s",
1487 REG_SORTED_SUBKEYS_PREFIX
, path
);
1492 state
.name
= talloc_strdup_upper(talloc_tos(), name
);
1493 if (state
.name
== NULL
) {
1496 state
.scanned
= false;
1498 res
= db
->parse_record(db
, string_term_tdb_data(key
),
1499 parent_subkey_scanner
, &state
);
1501 if (state
.scanned
) {
1502 result
= state
.found
;
1506 res
= db
->transaction_start(db
);
1508 DEBUG(0, ("error starting transaction\n"));
1512 status
= create_sorted_subkeys_internal(path
, key
);
1513 if (!NT_STATUS_IS_OK(status
)) {
1514 res
= db
->transaction_cancel(db
);
1516 smb_panic("Failed to cancel transaction.");
1521 res
= db
->parse_record(db
, string_term_tdb_data(key
),
1522 parent_subkey_scanner
, &state
);
1523 if ((res
== 0) && (state
.scanned
)) {
1524 result
= state
.found
;
1527 res
= db
->transaction_commit(db
);
1529 DEBUG(0, ("error committing transaction\n"));
1536 TALLOC_FREE(state
.name
);
1541 * Check for the existence of a key.
1543 * Existence of a key is authoritatively defined by its
1544 * existence in the list of subkeys of its parent key.
1545 * The exeption of this are keys without a parent key,
1546 * i.e. the "base" keys (HKLM, HKCU, ...).
1548 static bool regdb_key_exists(struct db_context
*db
, const char *key
)
1550 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1559 path
= normalize_reg_path(mem_ctx
, key
);
1561 DEBUG(0, ("out of memory! (talloc failed)\n"));
1565 if (*path
== '\0') {
1569 p
= strrchr(path
, '\\');
1571 /* this is a base key */
1572 value
= regdb_fetch_key_internal(db
, mem_ctx
, path
);
1573 ret
= (value
.dptr
!= NULL
);
1576 ret
= scan_parent_subkeys(db
, path
, p
+1);
1580 TALLOC_FREE(mem_ctx
);
1585 /***********************************************************************
1586 Retrieve an array of strings containing subkeys. Memory should be
1587 released by the caller.
1588 ***********************************************************************/
1590 static WERROR
regdb_fetch_keys_internal(struct db_context
*db
, const char *key
,
1591 struct regsubkey_ctr
*ctr
)
1599 TALLOC_CTX
*frame
= talloc_stackframe();
1602 DEBUG(11,("regdb_fetch_keys: Enter key => [%s]\n", key
? key
: "NULL"));
1604 if (!regdb_key_exists(db
, key
)) {
1605 DEBUG(10, ("key [%s] not found\n", key
));
1606 werr
= WERR_NOT_FOUND
;
1610 werr
= regsubkey_ctr_set_seqnum(ctr
, db
->get_seqnum(db
));
1611 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1613 value
= regdb_fetch_key_internal(db
, frame
, key
);
1615 if (value
.dsize
== 0 || value
.dptr
== NULL
) {
1616 DEBUG(10, ("regdb_fetch_keys: no subkeys found for key [%s]\n",
1622 buflen
= value
.dsize
;
1623 len
= tdb_unpack( buf
, buflen
, "d", &num_items
);
1624 if (len
== (uint32_t)-1) {
1625 werr
= WERR_NOT_FOUND
;
1629 werr
= regsubkey_ctr_reinit(ctr
);
1630 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1632 for (i
=0; i
<num_items
; i
++) {
1633 len
+= tdb_unpack(buf
+len
, buflen
-len
, "f", subkeyname
);
1634 werr
= regsubkey_ctr_addkey(ctr
, subkeyname
);
1635 if (!W_ERROR_IS_OK(werr
)) {
1636 DEBUG(5, ("regdb_fetch_keys: regsubkey_ctr_addkey "
1637 "failed: %s\n", win_errstr(werr
)));
1643 DEBUG(11,("regdb_fetch_keys: Exit [%d] items\n", num_items
));
1650 int regdb_fetch_keys(const char *key
, struct regsubkey_ctr
*ctr
)
1654 werr
= regdb_fetch_keys_internal(regdb
, key
, ctr
);
1655 if (!W_ERROR_IS_OK(werr
)) {
1659 return regsubkey_ctr_numkeys(ctr
);
1662 /****************************************************************************
1663 Unpack a list of registry values frem the TDB
1664 ***************************************************************************/
1666 static int regdb_unpack_values(struct regval_ctr
*values
, uint8
*buf
, int buflen
)
1673 uint32 num_values
= 0;
1676 /* loop and unpack the rest of the registry values */
1678 len
+= tdb_unpack(buf
+len
, buflen
-len
, "d", &num_values
);
1680 for ( i
=0; i
<num_values
; i
++ ) {
1681 /* unpack the next regval */
1686 valuename
[0] = '\0';
1687 len
+= tdb_unpack(buf
+len
, buflen
-len
, "fdB",
1693 regval_ctr_addvalue(values
, valuename
, type
,
1694 (uint8_t *)data_p
, size
);
1695 SAFE_FREE(data_p
); /* 'B' option to tdb_unpack does a malloc() */
1697 DEBUG(8,("specific: [%s], len: %d\n", valuename
, size
));
1703 /****************************************************************************
1704 Pack all values in all printer keys
1705 ***************************************************************************/
1707 static int regdb_pack_values(struct regval_ctr
*values
, uint8
*buf
, int buflen
)
1711 struct regval_blob
*val
;
1717 num_values
= regval_ctr_numvals( values
);
1719 /* pack the number of values first */
1721 len
+= tdb_pack( buf
+len
, buflen
-len
, "d", num_values
);
1723 /* loop over all values */
1725 for ( i
=0; i
<num_values
; i
++ ) {
1726 val
= regval_ctr_specific_value( values
, i
);
1727 len
+= tdb_pack(buf
+len
, buflen
-len
, "fdB",
1731 regval_data_p(val
) );
1737 /***********************************************************************
1738 Retrieve an array of strings containing subkeys. Memory should be
1739 released by the caller.
1740 ***********************************************************************/
1742 static int regdb_fetch_values_internal(struct db_context
*db
, const char* key
,
1743 struct regval_ctr
*values
)
1745 char *keystr
= NULL
;
1746 TALLOC_CTX
*ctx
= talloc_stackframe();
1751 DEBUG(10,("regdb_fetch_values: Looking for value of key [%s] \n", key
));
1753 if (!regdb_key_exists(db
, key
)) {
1757 keystr
= talloc_asprintf(ctx
, "%s\\%s", REG_VALUE_PREFIX
, key
);
1762 werr
= regval_ctr_set_seqnum(values
, db
->get_seqnum(db
));
1763 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1765 value
= regdb_fetch_key_internal(db
, ctx
, keystr
);
1768 /* all keys have zero values by default */
1772 regdb_unpack_values(values
, value
.dptr
, value
.dsize
);
1773 ret
= regval_ctr_numvals(values
);
1780 int regdb_fetch_values(const char* key
, struct regval_ctr
*values
)
1782 return regdb_fetch_values_internal(regdb
, key
, values
);
1785 static bool regdb_store_values_internal(struct db_context
*db
, const char *key
,
1786 struct regval_ctr
*values
)
1788 TDB_DATA old_data
, data
;
1789 char *keystr
= NULL
;
1790 TALLOC_CTX
*ctx
= talloc_stackframe();
1793 bool result
= false;
1795 DEBUG(10,("regdb_store_values: Looking for value of key [%s] \n", key
));
1797 if (!regdb_key_exists(db
, key
)) {
1803 len
= regdb_pack_values(values
, data
.dptr
, data
.dsize
);
1805 DEBUG(0,("regdb_store_values: unable to pack values. len <= 0\n"));
1809 data
.dptr
= TALLOC_ARRAY(ctx
, uint8
, len
);
1812 len
= regdb_pack_values(values
, data
.dptr
, data
.dsize
);
1814 SMB_ASSERT( len
== data
.dsize
);
1816 keystr
= talloc_asprintf(ctx
, "%s\\%s", REG_VALUE_PREFIX
, key
);
1820 keystr
= normalize_reg_path(ctx
, keystr
);
1825 old_data
= dbwrap_fetch_bystring(db
, ctx
, keystr
);
1827 if ((old_data
.dptr
!= NULL
)
1828 && (old_data
.dsize
== data
.dsize
)
1829 && (memcmp(old_data
.dptr
, data
.dptr
, data
.dsize
) == 0))
1835 status
= dbwrap_trans_store_bystring(db
, keystr
, data
, TDB_REPLACE
);
1837 result
= NT_STATUS_IS_OK(status
);
1844 bool regdb_store_values(const char *key
, struct regval_ctr
*values
)
1846 return regdb_store_values_internal(regdb
, key
, values
);
1849 static WERROR
regdb_get_secdesc(TALLOC_CTX
*mem_ctx
, const char *key
,
1850 struct security_descriptor
**psecdesc
)
1855 TALLOC_CTX
*tmp_ctx
= talloc_stackframe();
1856 WERROR err
= WERR_OK
;
1858 DEBUG(10, ("regdb_get_secdesc: Getting secdesc of key [%s]\n", key
));
1860 if (!regdb_key_exists(regdb
, key
)) {
1865 tdbkey
= talloc_asprintf(tmp_ctx
, "%s\\%s", REG_SECDESC_PREFIX
, key
);
1866 if (tdbkey
== NULL
) {
1871 tdbkey
= normalize_reg_path(tmp_ctx
, tdbkey
);
1872 if (tdbkey
== NULL
) {
1877 data
= dbwrap_fetch_bystring(regdb
, tmp_ctx
, tdbkey
);
1878 if (data
.dptr
== NULL
) {
1883 status
= unmarshall_sec_desc(mem_ctx
, (uint8
*)data
.dptr
, data
.dsize
,
1886 if (NT_STATUS_EQUAL(status
, NT_STATUS_NO_MEMORY
)) {
1888 } else if (!NT_STATUS_IS_OK(status
)) {
1889 err
= WERR_REG_CORRUPT
;
1893 TALLOC_FREE(tmp_ctx
);
1897 static WERROR
regdb_set_secdesc(const char *key
,
1898 struct security_descriptor
*secdesc
)
1900 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1902 WERROR err
= WERR_NOMEM
;
1905 if (!regdb_key_exists(regdb
, key
)) {
1910 tdbkey
= talloc_asprintf(mem_ctx
, "%s\\%s", REG_SECDESC_PREFIX
, key
);
1911 if (tdbkey
== NULL
) {
1915 tdbkey
= normalize_reg_path(mem_ctx
, tdbkey
);
1916 if (tdbkey
== NULL
) {
1921 if (secdesc
== NULL
) {
1922 /* assuming a delete */
1923 err
= ntstatus_to_werror(dbwrap_trans_delete_bystring(regdb
,
1928 err
= ntstatus_to_werror(marshall_sec_desc(mem_ctx
, secdesc
,
1931 W_ERROR_NOT_OK_GOTO_DONE(err
);
1933 err
= ntstatus_to_werror(dbwrap_trans_store_bystring(regdb
, tdbkey
,
1937 TALLOC_FREE(mem_ctx
);
1941 bool regdb_subkeys_need_update(struct regsubkey_ctr
*subkeys
)
1943 return (regdb_get_seqnum() != regsubkey_ctr_get_seqnum(subkeys
));
1946 bool regdb_values_need_update(struct regval_ctr
*values
)
1948 return (regdb_get_seqnum() != regval_ctr_get_seqnum(values
));
1952 * Table of function pointers for default access
1955 struct registry_ops regdb_ops
= {
1956 .fetch_subkeys
= regdb_fetch_keys
,
1957 .fetch_values
= regdb_fetch_values
,
1958 .store_subkeys
= regdb_store_keys
,
1959 .store_values
= regdb_store_values
,
1960 .create_subkey
= regdb_create_subkey
,
1961 .delete_subkey
= regdb_delete_subkey
,
1962 .get_secdesc
= regdb_get_secdesc
,
1963 .set_secdesc
= regdb_set_secdesc
,
1964 .subkeys_need_update
= regdb_subkeys_need_update
,
1965 .values_need_update
= regdb_values_need_update