2 * Unix SMB/CIFS implementation.
3 * Virtual Windows Registry Layer
4 * Copyright (C) Volker Lendecke 2006
5 * Copyright (C) Michael Adam 2007-2010
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 /* Attempt to wrap the existing API in a more winreg.idl-like way */
24 * Here is a list of winreg.idl functions and corresponding implementations
27 * 0x00 winreg_OpenHKCR
28 * 0x01 winreg_OpenHKCU
29 * 0x02 winreg_OpenHKLM
30 * 0x03 winreg_OpenHKPD
32 * 0x05 winreg_CloseKey
33 * 0x06 winreg_CreateKey reg_createkey
34 * 0x07 winreg_DeleteKey reg_deletekey
35 * 0x08 winreg_DeleteValue reg_deletevalue
36 * 0x09 winreg_EnumKey reg_enumkey
37 * 0x0a winreg_EnumValue reg_enumvalue
38 * 0x0b winreg_FlushKey
39 * 0x0c winreg_GetKeySecurity reg_getkeysecurity
41 * 0x0e winreg_NotifyChangeKeyValue
42 * 0x0f winreg_OpenKey reg_openkey
43 * 0x10 winreg_QueryInfoKey reg_queryinfokey
44 * 0x11 winreg_QueryValue reg_queryvalue
45 * 0x12 winreg_ReplaceKey
46 * 0x13 winreg_RestoreKey reg_restorekey
47 * 0x14 winreg_SaveKey reg_savekey
48 * 0x15 winreg_SetKeySecurity reg_setkeysecurity
49 * 0x16 winreg_SetValue reg_setvalue
50 * 0x17 winreg_UnLoadKey
51 * 0x18 winreg_InitiateSystemShutdown
52 * 0x19 winreg_AbortSystemShutdown
53 * 0x1a winreg_GetVersion reg_getversion
54 * 0x1b winreg_OpenHKCC
55 * 0x1c winreg_OpenHKDD
56 * 0x1d winreg_QueryMultipleValues reg_querymultiplevalues
57 * 0x1e winreg_InitiateSystemShutdownEx
58 * 0x1f winreg_SaveKeyEx
59 * 0x20 winreg_OpenHKPT
60 * 0x21 winreg_OpenHKPN
61 * 0x22 winreg_QueryMultipleValues2 reg_querymultiplevalues
68 #include "reg_cachehook.h"
69 #include "reg_backend_db.h"
70 #include "reg_dispatcher.h"
71 #include "reg_objects.h"
72 #include "../librpc/gen_ndr/ndr_security.h"
75 #define DBGC_CLASS DBGC_REGISTRY
78 /**********************************************************************
80 **********************************************************************/
82 static WERROR
fill_value_cache(struct registry_key
*key
)
86 if (key
->values
!= NULL
) {
87 if (!reg_values_need_update(key
->key
, key
->values
)) {
92 TALLOC_FREE(key
->values
);
93 werr
= regval_ctr_init(key
, &(key
->values
));
94 W_ERROR_NOT_OK_RETURN(werr
);
96 if (fetch_reg_values(key
->key
, key
->values
) == -1) {
97 TALLOC_FREE(key
->values
);
104 static WERROR
fill_subkey_cache(struct registry_key
*key
)
108 if (key
->subkeys
!= NULL
) {
109 if (!reg_subkeys_need_update(key
->key
, key
->subkeys
)) {
114 TALLOC_FREE(key
->subkeys
);
115 werr
= regsubkey_ctr_init(key
, &(key
->subkeys
));
116 W_ERROR_NOT_OK_RETURN(werr
);
118 if (fetch_reg_keys(key
->key
, key
->subkeys
) == -1) {
119 TALLOC_FREE(key
->subkeys
);
120 return WERR_NO_MORE_ITEMS
;
126 static int regkey_destructor(struct registry_key_handle
*key
)
128 return regdb_close();
131 static WERROR
regkey_open_onelevel(TALLOC_CTX
*mem_ctx
,
132 struct registry_key
*parent
,
134 const struct security_token
*token
,
135 uint32 access_desired
,
136 struct registry_key
**pregkey
)
138 WERROR result
= WERR_OK
;
139 struct registry_key
*regkey
;
140 struct registry_key_handle
*key
;
141 struct regsubkey_ctr
*subkeys
= NULL
;
143 DEBUG(7,("regkey_open_onelevel: name = [%s]\n", name
));
145 SMB_ASSERT(strchr(name
, '\\') == NULL
);
147 if (!(regkey
= talloc_zero(mem_ctx
, struct registry_key
)) ||
148 !(regkey
->token
= dup_nt_token(regkey
, token
)) ||
149 !(regkey
->key
= talloc_zero(regkey
, struct registry_key_handle
)))
155 if ( !(W_ERROR_IS_OK(result
= regdb_open())) ) {
160 talloc_set_destructor(key
, regkey_destructor
);
164 key
->type
= REG_KEY_GENERIC
;
166 if (name
[0] == '\0') {
168 * Open a copy of the parent key
171 result
= WERR_BADFILE
;
174 key
->name
= talloc_strdup(key
, parent
->key
->name
);
180 key
->name
= talloc_asprintf(key
, "%s%s%s",
181 parent
? parent
->key
->name
: "",
186 if (key
->name
== NULL
) {
191 /* Tag this as a Performance Counter Key */
193 if( strncasecmp_m(key
->name
, KEY_HKPD
, strlen(KEY_HKPD
)) == 0 )
194 key
->type
= REG_KEY_HKPD
;
196 /* Look up the table of registry I/O operations */
198 if ( !(key
->ops
= reghook_cache_find( key
->name
)) ) {
199 DEBUG(0,("reg_open_onelevel: Failed to assign "
200 "registry_ops to [%s]\n", key
->name
));
201 result
= WERR_BADFILE
;
205 /* check if the path really exists; failed is indicated by -1 */
206 /* if the subkey count failed, bail out */
208 result
= regsubkey_ctr_init(key
, &subkeys
);
209 if (!W_ERROR_IS_OK(result
)) {
213 if ( fetch_reg_keys( key
, subkeys
) == -1 ) {
214 result
= WERR_BADFILE
;
218 TALLOC_FREE( subkeys
);
220 if ( !regkey_access_check( key
, access_desired
, &key
->access_granted
,
222 result
= WERR_ACCESS_DENIED
;
230 if ( !W_ERROR_IS_OK(result
) ) {
237 WERROR
reg_openhive(TALLOC_CTX
*mem_ctx
, const char *hive
,
238 uint32 desired_access
,
239 const struct security_token
*token
,
240 struct registry_key
**pkey
)
242 SMB_ASSERT(hive
!= NULL
);
243 SMB_ASSERT(hive
[0] != '\0');
244 SMB_ASSERT(strchr(hive
, '\\') == NULL
);
246 return regkey_open_onelevel(mem_ctx
, NULL
, hive
, token
, desired_access
,
251 /**********************************************************************
253 **********************************************************************/
255 WERROR
reg_openkey(TALLOC_CTX
*mem_ctx
, struct registry_key
*parent
,
256 const char *name
, uint32 desired_access
,
257 struct registry_key
**pkey
)
259 struct registry_key
*direct_parent
= parent
;
261 char *p
, *path
, *to_free
;
264 if (!(path
= SMB_STRDUP(name
))) {
271 if ((len
> 0) && (path
[len
-1] == '\\')) {
275 while ((p
= strchr(path
, '\\')) != NULL
) {
276 char *name_component
;
277 struct registry_key
*tmp
;
279 if (!(name_component
= SMB_STRNDUP(path
, (p
- path
)))) {
284 err
= regkey_open_onelevel(mem_ctx
, direct_parent
,
285 name_component
, parent
->token
,
286 KEY_ENUMERATE_SUB_KEYS
, &tmp
);
287 SAFE_FREE(name_component
);
289 if (!W_ERROR_IS_OK(err
)) {
292 if (direct_parent
!= parent
) {
293 TALLOC_FREE(direct_parent
);
300 err
= regkey_open_onelevel(mem_ctx
, direct_parent
, path
, parent
->token
,
301 desired_access
, pkey
);
303 if (direct_parent
!= parent
) {
304 TALLOC_FREE(direct_parent
);
310 WERROR
reg_enumkey(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
311 uint32 idx
, char **name
, NTTIME
*last_write_time
)
315 if (!(key
->key
->access_granted
& KEY_ENUMERATE_SUB_KEYS
)) {
316 return WERR_ACCESS_DENIED
;
319 if (!W_ERROR_IS_OK(err
= fill_subkey_cache(key
))) {
323 if (idx
>= regsubkey_ctr_numkeys(key
->subkeys
)) {
324 return WERR_NO_MORE_ITEMS
;
327 if (!(*name
= talloc_strdup(mem_ctx
,
328 regsubkey_ctr_specific_key(key
->subkeys
, idx
))))
333 if (last_write_time
) {
334 *last_write_time
= 0;
340 WERROR
reg_enumvalue(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
341 uint32 idx
, char **pname
, struct registry_value
**pval
)
343 struct registry_value
*val
;
344 struct regval_blob
*blob
;
347 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
348 return WERR_ACCESS_DENIED
;
351 if (!(W_ERROR_IS_OK(err
= fill_value_cache(key
)))) {
355 if (idx
>= regval_ctr_numvals(key
->values
)) {
356 return WERR_NO_MORE_ITEMS
;
359 blob
= regval_ctr_specific_value(key
->values
, idx
);
361 val
= talloc_zero(mem_ctx
, struct registry_value
);
366 val
->type
= regval_type(blob
);
367 val
->data
= data_blob_talloc(mem_ctx
, regval_data_p(blob
), regval_size(blob
));
370 && !(*pname
= talloc_strdup(
371 mem_ctx
, regval_name(blob
)))) {
380 static WERROR
reg_enumvalue_nocachefill(TALLOC_CTX
*mem_ctx
,
381 struct registry_key
*key
,
382 uint32 idx
, char **pname
,
383 struct registry_value
**pval
)
385 struct registry_value
*val
;
386 struct regval_blob
*blob
;
388 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
389 return WERR_ACCESS_DENIED
;
392 if (idx
>= regval_ctr_numvals(key
->values
)) {
393 return WERR_NO_MORE_ITEMS
;
396 blob
= regval_ctr_specific_value(key
->values
, idx
);
398 val
= talloc_zero(mem_ctx
, struct registry_value
);
403 val
->type
= regval_type(blob
);
404 val
->data
= data_blob_talloc(mem_ctx
, regval_data_p(blob
), regval_size(blob
));
407 && !(*pname
= talloc_strdup(
408 mem_ctx
, regval_name(blob
)))) {
417 WERROR
reg_queryvalue(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
418 const char *name
, struct registry_value
**pval
)
423 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
424 return WERR_ACCESS_DENIED
;
427 if (!(W_ERROR_IS_OK(err
= fill_value_cache(key
)))) {
431 for (i
=0; i
< regval_ctr_numvals(key
->values
); i
++) {
432 struct regval_blob
*blob
;
433 blob
= regval_ctr_specific_value(key
->values
, i
);
434 if (strequal(regval_name(blob
), name
)) {
436 * don't use reg_enumvalue here:
437 * re-reading the values from the disk
438 * would change the indexing and break
441 return reg_enumvalue_nocachefill(mem_ctx
, key
, i
,
449 WERROR
reg_querymultiplevalues(TALLOC_CTX
*mem_ctx
,
450 struct registry_key
*key
,
454 struct registry_value
**pvals
)
457 uint32_t i
, n
, found
= 0;
458 struct registry_value
*vals
;
460 if (num_names
== 0) {
464 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
465 return WERR_ACCESS_DENIED
;
468 if (!(W_ERROR_IS_OK(err
= fill_value_cache(key
)))) {
472 vals
= talloc_zero_array(mem_ctx
, struct registry_value
, num_names
);
477 for (n
=0; n
< num_names
; n
++) {
478 for (i
=0; i
< regval_ctr_numvals(key
->values
); i
++) {
479 struct regval_blob
*blob
;
480 blob
= regval_ctr_specific_value(key
->values
, i
);
481 if (strequal(regval_name(blob
), names
[n
])) {
482 struct registry_value
*v
;
483 err
= reg_enumvalue(mem_ctx
, key
, i
, NULL
, &v
);
484 if (!W_ERROR_IS_OK(err
)) {
499 WERROR
reg_queryinfokey(struct registry_key
*key
, uint32_t *num_subkeys
,
500 uint32_t *max_subkeylen
, uint32_t *max_subkeysize
,
501 uint32_t *num_values
, uint32_t *max_valnamelen
,
502 uint32_t *max_valbufsize
, uint32_t *secdescsize
,
503 NTTIME
*last_changed_time
)
509 struct security_descriptor
*secdesc
;
511 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
512 return WERR_ACCESS_DENIED
;
515 if (!W_ERROR_IS_OK(fill_subkey_cache(key
)) ||
516 !W_ERROR_IS_OK(fill_value_cache(key
))) {
521 for (i
=0; i
< regsubkey_ctr_numkeys(key
->subkeys
); i
++) {
522 max_len
= MAX(max_len
,
523 strlen(regsubkey_ctr_specific_key(key
->subkeys
, i
)));
526 *num_subkeys
= regsubkey_ctr_numkeys(key
->subkeys
);
527 *max_subkeylen
= max_len
;
528 *max_subkeysize
= 0; /* Class length? */
532 for (i
=0; i
< regval_ctr_numvals(key
->values
); i
++) {
533 struct regval_blob
*blob
;
534 blob
= regval_ctr_specific_value(key
->values
, i
);
535 max_len
= MAX(max_len
, strlen(regval_name(blob
)));
536 max_size
= MAX(max_size
, regval_size(blob
));
539 *num_values
= regval_ctr_numvals(key
->values
);
540 *max_valnamelen
= max_len
;
541 *max_valbufsize
= max_size
;
543 if (!(mem_ctx
= talloc_new(key
))) {
547 err
= regkey_get_secdesc(mem_ctx
, key
->key
, &secdesc
);
548 if (!W_ERROR_IS_OK(err
)) {
549 TALLOC_FREE(mem_ctx
);
553 *secdescsize
= ndr_size_security_descriptor(secdesc
, 0);
554 TALLOC_FREE(mem_ctx
);
556 *last_changed_time
= 0;
561 WERROR
reg_createkey(TALLOC_CTX
*ctx
, struct registry_key
*parent
,
562 const char *subkeypath
, uint32 desired_access
,
563 struct registry_key
**pkey
,
564 enum winreg_CreateAction
*paction
)
566 struct registry_key
*key
= parent
;
567 struct registry_key
*create_parent
;
572 mem_ctx
= talloc_new(ctx
);
573 if (mem_ctx
== NULL
) {
577 path
= talloc_strdup(mem_ctx
, subkeypath
);
583 err
= regdb_transaction_start();
584 if (!W_ERROR_IS_OK(err
)) {
585 DEBUG(0, ("reg_createkey: failed to start transaction: %s\n",
590 while ((end
= strchr(path
, '\\')) != NULL
) {
591 struct registry_key
*tmp
;
592 enum winreg_CreateAction action
;
596 err
= reg_createkey(mem_ctx
, key
, path
,
597 KEY_ENUMERATE_SUB_KEYS
, &tmp
, &action
);
598 if (!W_ERROR_IS_OK(err
)) {
611 * At this point, "path" contains the one-element subkey of "key". We
612 * can try to open it.
615 err
= reg_openkey(ctx
, key
, path
, desired_access
, pkey
);
616 if (W_ERROR_IS_OK(err
)) {
617 if (paction
!= NULL
) {
618 *paction
= REG_OPENED_EXISTING_KEY
;
623 if (!W_ERROR_EQUAL(err
, WERR_BADFILE
)) {
625 * Something but "notfound" has happened, so bail out
631 * We have to make a copy of the current key, as we opened it only
632 * with ENUM_SUBKEY access.
635 err
= reg_openkey(mem_ctx
, key
, "", KEY_CREATE_SUB_KEY
,
637 if (!W_ERROR_IS_OK(err
)) {
642 * Actually create the subkey
645 err
= fill_subkey_cache(create_parent
);
646 if (!W_ERROR_IS_OK(err
)) {
650 err
= create_reg_subkey(key
->key
, path
);
651 if (!W_ERROR_IS_OK(err
)) {
656 * Now open the newly created key
659 err
= reg_openkey(ctx
, create_parent
, path
, desired_access
, pkey
);
660 if (W_ERROR_IS_OK(err
) && (paction
!= NULL
)) {
661 *paction
= REG_CREATED_NEW_KEY
;
665 if (W_ERROR_IS_OK(err
)) {
666 err
= regdb_transaction_commit();
667 if (!W_ERROR_IS_OK(err
)) {
668 DEBUG(0, ("reg_createkey: Error committing transaction: %s\n", win_errstr(err
)));
671 WERROR err1
= regdb_transaction_cancel();
672 if (!W_ERROR_IS_OK(err1
)) {
673 DEBUG(0, ("reg_createkey: Error cancelling transaction: %s\n", win_errstr(err1
)));
678 TALLOC_FREE(mem_ctx
);
682 static WERROR
reg_deletekey_internal(TALLOC_CTX
*mem_ctx
,
683 struct registry_key
*parent
,
684 const char *path
, bool lazy
)
688 struct registry_key
*key
;
689 name
= talloc_strdup(mem_ctx
, path
);
695 /* no subkeys - proceed with delete */
696 end
= strrchr(name
, '\\');
700 err
= reg_openkey(mem_ctx
, parent
, name
,
701 KEY_CREATE_SUB_KEY
, &key
);
702 W_ERROR_NOT_OK_GOTO_DONE(err
);
708 if (name
[0] == '\0') {
709 err
= WERR_INVALID_PARAM
;
713 err
= delete_reg_subkey(parent
->key
, name
, lazy
);
719 WERROR
reg_deletekey(struct registry_key
*parent
, const char *path
)
722 struct registry_key
*key
;
723 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
725 /* check if the key has subkeys */
726 err
= reg_openkey(mem_ctx
, parent
, path
, REG_KEY_READ
, &key
);
727 W_ERROR_NOT_OK_GOTO_DONE(err
);
729 err
= fill_subkey_cache(key
);
730 W_ERROR_NOT_OK_GOTO_DONE(err
);
732 if (regsubkey_ctr_numkeys(key
->subkeys
) > 0) {
733 err
= WERR_ACCESS_DENIED
;
736 err
= reg_deletekey_internal(mem_ctx
, parent
, path
, false);
738 TALLOC_FREE(mem_ctx
);
743 WERROR
reg_setvalue(struct registry_key
*key
, const char *name
,
744 const struct registry_value
*val
)
746 struct regval_blob
*existing
;
750 if (!(key
->key
->access_granted
& KEY_SET_VALUE
)) {
751 return WERR_ACCESS_DENIED
;
754 err
= regdb_transaction_start();
755 if (!W_ERROR_IS_OK(err
)) {
756 DEBUG(0, ("reg_setvalue: Failed to start transaction: %s\n",
761 err
= fill_value_cache(key
);
762 if (!W_ERROR_IS_OK(err
)) {
763 DEBUG(0, ("reg_setvalue: Error filling value cache: %s\n", win_errstr(err
)));
767 existing
= regval_ctr_getvalue(key
->values
, name
);
769 if ((existing
!= NULL
) &&
770 (regval_size(existing
) == val
->data
.length
) &&
771 (memcmp(regval_data_p(existing
), val
->data
.data
,
772 val
->data
.length
) == 0))
778 res
= regval_ctr_addvalue(key
->values
, name
, val
->type
,
779 val
->data
.data
, val
->data
.length
);
782 TALLOC_FREE(key
->values
);
787 if (!store_reg_values(key
->key
, key
->values
)) {
788 TALLOC_FREE(key
->values
);
789 DEBUG(0, ("reg_setvalue: store_reg_values failed\n"));
790 err
= WERR_REG_IO_FAILURE
;
797 if (W_ERROR_IS_OK(err
)) {
798 err
= regdb_transaction_commit();
799 if (!W_ERROR_IS_OK(err
)) {
800 DEBUG(0, ("reg_setvalue: Error committing transaction: %s\n", win_errstr(err
)));
803 WERROR err1
= regdb_transaction_cancel();
804 if (!W_ERROR_IS_OK(err1
)) {
805 DEBUG(0, ("reg_setvalue: Error cancelling transaction: %s\n", win_errstr(err1
)));
812 static WERROR
reg_value_exists(struct registry_key
*key
, const char *name
)
814 struct regval_blob
*blob
;
816 blob
= regval_ctr_getvalue(key
->values
, name
);
825 WERROR
reg_deletevalue(struct registry_key
*key
, const char *name
)
829 if (!(key
->key
->access_granted
& KEY_SET_VALUE
)) {
830 return WERR_ACCESS_DENIED
;
833 err
= regdb_transaction_start();
834 if (!W_ERROR_IS_OK(err
)) {
835 DEBUG(0, ("reg_deletevalue: Failed to start transaction: %s\n",
840 err
= fill_value_cache(key
);
841 if (!W_ERROR_IS_OK(err
)) {
842 DEBUG(0, ("reg_deletevalue; Error filling value cache: %s\n",
847 err
= reg_value_exists(key
, name
);
848 if (!W_ERROR_IS_OK(err
)) {
852 regval_ctr_delvalue(key
->values
, name
);
854 if (!store_reg_values(key
->key
, key
->values
)) {
855 TALLOC_FREE(key
->values
);
856 err
= WERR_REG_IO_FAILURE
;
857 DEBUG(0, ("reg_deletevalue: store_reg_values failed\n"));
864 if (W_ERROR_IS_OK(err
)) {
865 err
= regdb_transaction_commit();
866 if (!W_ERROR_IS_OK(err
)) {
867 DEBUG(0, ("reg_deletevalue: Error committing transaction: %s\n", win_errstr(err
)));
870 WERROR err1
= regdb_transaction_cancel();
871 if (!W_ERROR_IS_OK(err1
)) {
872 DEBUG(0, ("reg_deletevalue: Error cancelling transaction: %s\n", win_errstr(err1
)));
879 WERROR
reg_getkeysecurity(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
880 struct security_descriptor
**psecdesc
)
882 return regkey_get_secdesc(mem_ctx
, key
->key
, psecdesc
);
885 WERROR
reg_setkeysecurity(struct registry_key
*key
,
886 struct security_descriptor
*psecdesc
)
888 return regkey_set_secdesc(key
->key
, psecdesc
);
891 WERROR
reg_getversion(uint32_t *version
)
893 if (version
== NULL
) {
894 return WERR_INVALID_PARAM
;
897 *version
= 0x00000005; /* Windows 2000 registry API version */
901 /**********************************************************************
902 * Higher level utility functions
903 **********************************************************************/
905 WERROR
reg_deleteallvalues(struct registry_key
*key
)
910 if (!(key
->key
->access_granted
& KEY_SET_VALUE
)) {
911 return WERR_ACCESS_DENIED
;
914 if (!W_ERROR_IS_OK(err
= fill_value_cache(key
))) {
918 for (i
=0; i
< regval_ctr_numvals(key
->values
); i
++) {
919 struct regval_blob
*blob
;
920 blob
= regval_ctr_specific_value(key
->values
, i
);
921 regval_ctr_delvalue(key
->values
, regval_name(blob
));
924 if (!store_reg_values(key
->key
, key
->values
)) {
925 TALLOC_FREE(key
->values
);
926 return WERR_REG_IO_FAILURE
;
933 * Utility function to delete a registry key with all its subkeys.
934 * Note that reg_deletekey returns ACCESS_DENIED when called on a
935 * key that has subkeys.
937 static WERROR
reg_deletekey_recursive_internal(struct registry_key
*parent
,
939 bool del_key
, bool lazy
)
941 WERROR werr
= WERR_OK
;
942 struct registry_key
*key
;
943 char *subkey_name
= NULL
;
945 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
947 DEBUG(5, ("reg_deletekey_recursive_internal: deleting '%s' from '%s'\n",
948 path
, parent
->key
->name
));
950 /* recurse through subkeys first */
951 werr
= reg_openkey(mem_ctx
, parent
, path
, REG_KEY_ALL
, &key
);
952 if (!W_ERROR_IS_OK(werr
)) {
953 DEBUG(3, ("reg_deletekey_recursive_internal: error opening "
954 "subkey '%s' of '%s': '%s'\n",
955 path
, parent
->key
->name
, win_errstr(werr
)));
959 werr
= fill_subkey_cache(key
);
960 W_ERROR_NOT_OK_GOTO_DONE(werr
);
963 * loop from top to bottom for perfomance:
964 * this way, we need to rehash the regsubkey containers less
966 for (i
= regsubkey_ctr_numkeys(key
->subkeys
) ; i
> 0; i
--) {
967 subkey_name
= regsubkey_ctr_specific_key(key
->subkeys
, i
-1);
968 werr
= reg_deletekey_recursive_internal(key
, subkey_name
, true, del_key
);
969 W_ERROR_NOT_OK_GOTO_DONE(werr
);
973 /* now delete the actual key */
974 werr
= reg_deletekey_internal(mem_ctx
, parent
, path
, lazy
);
979 DEBUG(5, ("reg_deletekey_recursive_internal: done deleting '%s' from "
981 path
, parent
->key
->name
, win_errstr(werr
)));
982 TALLOC_FREE(mem_ctx
);
986 static WERROR
reg_deletekey_recursive_trans(struct registry_key
*parent
,
992 werr
= regdb_transaction_start();
993 if (!W_ERROR_IS_OK(werr
)) {
994 DEBUG(0, ("reg_deletekey_recursive_trans: "
995 "error starting transaction: %s\n",
1000 werr
= reg_deletekey_recursive_internal(parent
, path
, del_key
, false);
1002 if (!W_ERROR_IS_OK(werr
)) {
1005 DEBUG(1, (__location__
" failed to delete key '%s' from key "
1006 "'%s': %s\n", path
, parent
->key
->name
,
1009 werr2
= regdb_transaction_cancel();
1010 if (!W_ERROR_IS_OK(werr2
)) {
1011 DEBUG(0, ("reg_deletekey_recursive_trans: "
1012 "error cancelling transaction: %s\n",
1013 win_errstr(werr2
)));
1015 * return the original werr or the
1016 * error from cancelling the transaction?
1020 werr
= regdb_transaction_commit();
1021 if (!W_ERROR_IS_OK(werr
)) {
1022 DEBUG(0, ("reg_deletekey_recursive_trans: "
1023 "error committing transaction: %s\n",
1026 DEBUG(5, ("reg_reletekey_recursive_trans: deleted key '%s' from '%s'\n",
1027 path
, parent
->key
->name
));
1035 WERROR
reg_deletekey_recursive(struct registry_key
*parent
,
1038 return reg_deletekey_recursive_trans(parent
, path
, true);
1041 WERROR
reg_deletesubkeys_recursive(struct registry_key
*parent
,
1044 return reg_deletekey_recursive_trans(parent
, path
, false);