2 * Unix SMB/CIFS implementation.
3 * Virtual Windows Registry Layer
4 * Copyright (C) Volker Lendecke 2006
5 * Copyright (C) Michael Adam 2007-2008
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
57 * 0x1e winreg_InitiateSystemShutdownEx
58 * 0x1f winreg_SaveKeyEx
59 * 0x20 winreg_OpenHKPT
60 * 0x21 winreg_OpenHKPN
61 * 0x22 winreg_QueryMultipleValues2
67 #include "reg_cachehook.h"
69 #include "reg_util_internal.h"
70 #include "reg_backend_db.h"
71 #include "reg_dispatcher.h"
72 #include "reg_util_marshalling.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 werr
= regval_ctr_init(key
, &(key
->values
));
93 W_ERROR_NOT_OK_RETURN(werr
);
95 if (fetch_reg_values(key
->key
, key
->values
) == -1) {
96 TALLOC_FREE(key
->values
);
103 static WERROR
fill_subkey_cache(struct registry_key
*key
)
107 if (key
->subkeys
!= NULL
) {
108 if (!reg_subkeys_need_update(key
->key
, key
->subkeys
)) {
113 werr
= regsubkey_ctr_init(key
, &(key
->subkeys
));
114 W_ERROR_NOT_OK_RETURN(werr
);
116 if (fetch_reg_keys(key
->key
, key
->subkeys
) == -1) {
117 TALLOC_FREE(key
->subkeys
);
118 return WERR_NO_MORE_ITEMS
;
124 static int regkey_destructor(struct registry_key_handle
*key
)
126 return regdb_close();
129 static WERROR
regkey_open_onelevel(TALLOC_CTX
*mem_ctx
,
130 struct registry_key
*parent
,
132 const struct nt_user_token
*token
,
133 uint32 access_desired
,
134 struct registry_key
**pregkey
)
136 WERROR result
= WERR_OK
;
137 struct registry_key
*regkey
;
138 struct registry_key_handle
*key
;
139 struct regsubkey_ctr
*subkeys
= NULL
;
141 DEBUG(7,("regkey_open_onelevel: name = [%s]\n", name
));
143 SMB_ASSERT(strchr(name
, '\\') == NULL
);
145 if (!(regkey
= TALLOC_ZERO_P(mem_ctx
, struct registry_key
)) ||
146 !(regkey
->token
= dup_nt_token(regkey
, token
)) ||
147 !(regkey
->key
= TALLOC_ZERO_P(regkey
, struct registry_key_handle
)))
153 if ( !(W_ERROR_IS_OK(result
= regdb_open())) ) {
158 talloc_set_destructor(key
, regkey_destructor
);
162 key
->type
= REG_KEY_GENERIC
;
164 if (name
[0] == '\0') {
166 * Open a copy of the parent key
169 result
= WERR_BADFILE
;
172 key
->name
= talloc_strdup(key
, parent
->key
->name
);
178 key
->name
= talloc_asprintf(key
, "%s%s%s",
179 parent
? parent
->key
->name
: "",
184 if (key
->name
== NULL
) {
189 /* Tag this as a Performance Counter Key */
191 if( StrnCaseCmp(key
->name
, KEY_HKPD
, strlen(KEY_HKPD
)) == 0 )
192 key
->type
= REG_KEY_HKPD
;
194 /* Look up the table of registry I/O operations */
196 if ( !(key
->ops
= reghook_cache_find( key
->name
)) ) {
197 DEBUG(0,("reg_open_onelevel: Failed to assign "
198 "registry_ops to [%s]\n", key
->name
));
199 result
= WERR_BADFILE
;
203 /* check if the path really exists; failed is indicated by -1 */
204 /* if the subkey count failed, bail out */
206 result
= regsubkey_ctr_init(key
, &subkeys
);
207 if (!W_ERROR_IS_OK(result
)) {
211 if ( fetch_reg_keys( key
, subkeys
) == -1 ) {
212 result
= WERR_BADFILE
;
216 TALLOC_FREE( subkeys
);
218 if ( !regkey_access_check( key
, access_desired
, &key
->access_granted
,
220 result
= WERR_ACCESS_DENIED
;
228 if ( !W_ERROR_IS_OK(result
) ) {
235 WERROR
reg_openhive(TALLOC_CTX
*mem_ctx
, const char *hive
,
236 uint32 desired_access
,
237 const struct nt_user_token
*token
,
238 struct registry_key
**pkey
)
240 SMB_ASSERT(hive
!= NULL
);
241 SMB_ASSERT(hive
[0] != '\0');
242 SMB_ASSERT(strchr(hive
, '\\') == NULL
);
244 return regkey_open_onelevel(mem_ctx
, NULL
, hive
, token
, desired_access
,
249 /**********************************************************************
251 **********************************************************************/
253 WERROR
reg_openkey(TALLOC_CTX
*mem_ctx
, struct registry_key
*parent
,
254 const char *name
, uint32 desired_access
,
255 struct registry_key
**pkey
)
257 struct registry_key
*direct_parent
= parent
;
259 char *p
, *path
, *to_free
;
262 if (!(path
= SMB_STRDUP(name
))) {
269 if ((len
> 0) && (path
[len
-1] == '\\')) {
273 while ((p
= strchr(path
, '\\')) != NULL
) {
274 char *name_component
;
275 struct registry_key
*tmp
;
277 if (!(name_component
= SMB_STRNDUP(path
, (p
- path
)))) {
282 err
= regkey_open_onelevel(mem_ctx
, direct_parent
,
283 name_component
, parent
->token
,
284 KEY_ENUMERATE_SUB_KEYS
, &tmp
);
285 SAFE_FREE(name_component
);
287 if (!W_ERROR_IS_OK(err
)) {
290 if (direct_parent
!= parent
) {
291 TALLOC_FREE(direct_parent
);
298 err
= regkey_open_onelevel(mem_ctx
, direct_parent
, path
, parent
->token
,
299 desired_access
, pkey
);
301 if (direct_parent
!= parent
) {
302 TALLOC_FREE(direct_parent
);
308 WERROR
reg_enumkey(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
309 uint32 idx
, char **name
, NTTIME
*last_write_time
)
313 if (!(key
->key
->access_granted
& KEY_ENUMERATE_SUB_KEYS
)) {
314 return WERR_ACCESS_DENIED
;
317 if (!W_ERROR_IS_OK(err
= fill_subkey_cache(key
))) {
321 if (idx
>= regsubkey_ctr_numkeys(key
->subkeys
)) {
322 return WERR_NO_MORE_ITEMS
;
325 if (!(*name
= talloc_strdup(mem_ctx
,
326 regsubkey_ctr_specific_key(key
->subkeys
, idx
))))
331 if (last_write_time
) {
332 *last_write_time
= 0;
338 WERROR
reg_enumvalue(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
339 uint32 idx
, char **pname
, struct registry_value
**pval
)
341 struct registry_value
*val
;
342 struct regval_blob
*blob
;
345 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
346 return WERR_ACCESS_DENIED
;
349 if (!(W_ERROR_IS_OK(err
= fill_value_cache(key
)))) {
353 if (idx
>= regval_ctr_numvals(key
->values
)) {
354 return WERR_NO_MORE_ITEMS
;
357 blob
= regval_ctr_specific_value(key
->values
, idx
);
358 err
= registry_pull_value(mem_ctx
, &val
,
363 if (!W_ERROR_IS_OK(err
)) {
368 && !(*pname
= talloc_strdup(
369 mem_ctx
, regval_name(blob
)))) {
378 WERROR
reg_queryvalue(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
379 const char *name
, struct registry_value
**pval
)
384 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
385 return WERR_ACCESS_DENIED
;
388 if (!(W_ERROR_IS_OK(err
= fill_value_cache(key
)))) {
392 for (i
=0; i
< regval_ctr_numvals(key
->values
); i
++) {
393 struct regval_blob
*blob
;
394 blob
= regval_ctr_specific_value(key
->values
, i
);
395 if (strequal(regval_name(blob
), name
)) {
396 return reg_enumvalue(mem_ctx
, key
, i
, NULL
, pval
);
403 WERROR
reg_queryinfokey(struct registry_key
*key
, uint32_t *num_subkeys
,
404 uint32_t *max_subkeylen
, uint32_t *max_subkeysize
,
405 uint32_t *num_values
, uint32_t *max_valnamelen
,
406 uint32_t *max_valbufsize
, uint32_t *secdescsize
,
407 NTTIME
*last_changed_time
)
413 struct security_descriptor
*secdesc
;
415 if (!(key
->key
->access_granted
& KEY_QUERY_VALUE
)) {
416 return WERR_ACCESS_DENIED
;
419 if (!W_ERROR_IS_OK(fill_subkey_cache(key
)) ||
420 !W_ERROR_IS_OK(fill_value_cache(key
))) {
425 for (i
=0; i
< regsubkey_ctr_numkeys(key
->subkeys
); i
++) {
426 max_len
= MAX(max_len
,
427 strlen(regsubkey_ctr_specific_key(key
->subkeys
, i
)));
430 *num_subkeys
= regsubkey_ctr_numkeys(key
->subkeys
);
431 *max_subkeylen
= max_len
;
432 *max_subkeysize
= 0; /* Class length? */
436 for (i
=0; i
< regval_ctr_numvals(key
->values
); i
++) {
437 struct regval_blob
*blob
;
438 blob
= regval_ctr_specific_value(key
->values
, i
);
439 max_len
= MAX(max_len
, strlen(regval_name(blob
)));
440 max_size
= MAX(max_size
, regval_size(blob
));
443 *num_values
= regval_ctr_numvals(key
->values
);
444 *max_valnamelen
= max_len
;
445 *max_valbufsize
= max_size
;
447 if (!(mem_ctx
= talloc_new(key
))) {
451 err
= regkey_get_secdesc(mem_ctx
, key
->key
, &secdesc
);
452 if (!W_ERROR_IS_OK(err
)) {
453 TALLOC_FREE(mem_ctx
);
457 *secdescsize
= ndr_size_security_descriptor(secdesc
, 0);
458 TALLOC_FREE(mem_ctx
);
460 *last_changed_time
= 0;
465 WERROR
reg_createkey(TALLOC_CTX
*ctx
, struct registry_key
*parent
,
466 const char *subkeypath
, uint32 desired_access
,
467 struct registry_key
**pkey
,
468 enum winreg_CreateAction
*paction
)
470 struct registry_key
*key
= parent
;
471 struct registry_key
*create_parent
;
477 * We must refuse to handle subkey-paths containing
478 * a '/' character because at a lower level, after
479 * normalization, '/' is treated as a key separator
482 if (strchr(subkeypath
, '/') != NULL
) {
483 return WERR_INVALID_PARAM
;
486 if (!(mem_ctx
= talloc_new(ctx
))) return WERR_NOMEM
;
488 if (!(path
= talloc_strdup(mem_ctx
, subkeypath
))) {
493 while ((end
= strchr(path
, '\\')) != NULL
) {
494 struct registry_key
*tmp
;
495 enum winreg_CreateAction action
;
499 err
= reg_createkey(mem_ctx
, key
, path
,
500 KEY_ENUMERATE_SUB_KEYS
, &tmp
, &action
);
501 if (!W_ERROR_IS_OK(err
)) {
514 * At this point, "path" contains the one-element subkey of "key". We
515 * can try to open it.
518 err
= reg_openkey(ctx
, key
, path
, desired_access
, pkey
);
519 if (W_ERROR_IS_OK(err
)) {
520 if (paction
!= NULL
) {
521 *paction
= REG_OPENED_EXISTING_KEY
;
526 if (!W_ERROR_EQUAL(err
, WERR_BADFILE
)) {
528 * Something but "notfound" has happened, so bail out
534 * We have to make a copy of the current key, as we opened it only
535 * with ENUM_SUBKEY access.
538 err
= reg_openkey(mem_ctx
, key
, "", KEY_CREATE_SUB_KEY
,
540 if (!W_ERROR_IS_OK(err
)) {
545 * Actually create the subkey
548 err
= fill_subkey_cache(create_parent
);
549 if (!W_ERROR_IS_OK(err
)) goto done
;
551 err
= create_reg_subkey(key
->key
, path
);
552 W_ERROR_NOT_OK_GOTO_DONE(err
);
555 * Now open the newly created key
558 err
= reg_openkey(ctx
, create_parent
, path
, desired_access
, pkey
);
559 if (W_ERROR_IS_OK(err
) && (paction
!= NULL
)) {
560 *paction
= REG_CREATED_NEW_KEY
;
564 TALLOC_FREE(mem_ctx
);
568 WERROR
reg_deletekey(struct registry_key
*parent
, const char *path
)
572 struct registry_key
*tmp_key
, *key
;
573 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
575 name
= talloc_strdup(mem_ctx
, path
);
581 /* check if the key has subkeys */
582 err
= reg_openkey(mem_ctx
, parent
, name
, REG_KEY_READ
, &key
);
583 W_ERROR_NOT_OK_GOTO_DONE(err
);
585 err
= fill_subkey_cache(key
);
586 W_ERROR_NOT_OK_GOTO_DONE(err
);
588 if (regsubkey_ctr_numkeys(key
->subkeys
) > 0) {
589 err
= WERR_ACCESS_DENIED
;
593 /* no subkeys - proceed with delete */
594 end
= strrchr(name
, '\\');
598 err
= reg_openkey(mem_ctx
, parent
, name
,
599 KEY_CREATE_SUB_KEY
, &tmp_key
);
600 W_ERROR_NOT_OK_GOTO_DONE(err
);
606 if (name
[0] == '\0') {
607 err
= WERR_INVALID_PARAM
;
611 err
= delete_reg_subkey(parent
->key
, name
);
614 TALLOC_FREE(mem_ctx
);
618 WERROR
reg_setvalue(struct registry_key
*key
, const char *name
,
619 const struct registry_value
*val
)
622 DATA_BLOB value_data
;
625 if (!(key
->key
->access_granted
& KEY_SET_VALUE
)) {
626 return WERR_ACCESS_DENIED
;
629 if (!W_ERROR_IS_OK(err
= fill_value_cache(key
))) {
633 err
= registry_push_value(key
, val
, &value_data
);
634 if (!W_ERROR_IS_OK(err
)) {
638 res
= regval_ctr_addvalue(key
->values
, name
, val
->type
,
639 value_data
.data
, value_data
.length
);
640 TALLOC_FREE(value_data
.data
);
643 TALLOC_FREE(key
->values
);
647 if (!store_reg_values(key
->key
, key
->values
)) {
648 TALLOC_FREE(key
->values
);
649 return WERR_REG_IO_FAILURE
;
655 static WERROR
reg_value_exists(struct registry_key
*key
, const char *name
)
657 struct regval_blob
*blob
;
659 blob
= regval_ctr_getvalue(key
->values
, name
);
668 WERROR
reg_deletevalue(struct registry_key
*key
, const char *name
)
672 if (!(key
->key
->access_granted
& KEY_SET_VALUE
)) {
673 return WERR_ACCESS_DENIED
;
676 if (!W_ERROR_IS_OK(err
= fill_value_cache(key
))) {
680 err
= reg_value_exists(key
, name
);
681 if (!W_ERROR_IS_OK(err
)) {
685 regval_ctr_delvalue(key
->values
, name
);
687 if (!store_reg_values(key
->key
, key
->values
)) {
688 TALLOC_FREE(key
->values
);
689 return WERR_REG_IO_FAILURE
;
695 WERROR
reg_getkeysecurity(TALLOC_CTX
*mem_ctx
, struct registry_key
*key
,
696 struct security_descriptor
**psecdesc
)
698 return regkey_get_secdesc(mem_ctx
, key
->key
, psecdesc
);
701 WERROR
reg_setkeysecurity(struct registry_key
*key
,
702 struct security_descriptor
*psecdesc
)
704 return regkey_set_secdesc(key
->key
, psecdesc
);
707 WERROR
reg_getversion(uint32_t *version
)
709 if (version
== NULL
) {
710 return WERR_INVALID_PARAM
;
713 *version
= 0x00000005; /* Windows 2000 registry API version */
717 /*******************************************************************
718 Note: topkeypat is the *full* path that this *key will be
719 loaded into (including the name of the key)
720 ********************************************************************/
722 static WERROR
reg_load_tree(REGF_FILE
*regfile
, const char *topkeypath
,
726 struct registry_key_handle registry_key
;
727 struct regval_ctr
*values
;
728 struct regsubkey_ctr
*subkeys
;
731 WERROR result
= WERR_OK
;
733 /* initialize the struct registry_key_handle structure */
735 registry_key
.ops
= reghook_cache_find(topkeypath
);
736 if (!registry_key
.ops
) {
737 DEBUG(0, ("reg_load_tree: Failed to assign registry_ops "
738 "to [%s]\n", topkeypath
));
742 registry_key
.name
= talloc_strdup(regfile
->mem_ctx
, topkeypath
);
743 if (!registry_key
.name
) {
744 DEBUG(0, ("reg_load_tree: Talloc failed for reg_key.name!\n"));
748 /* now start parsing the values and subkeys */
750 result
= regsubkey_ctr_init(regfile
->mem_ctx
, &subkeys
);
751 W_ERROR_NOT_OK_RETURN(result
);
753 result
= regval_ctr_init(subkeys
, &values
);
754 W_ERROR_NOT_OK_RETURN(result
);
756 /* copy values into the struct regval_ctr */
758 for (i
=0; i
<key
->num_values
; i
++) {
759 regval_ctr_addvalue(values
, key
->values
[i
].valuename
,
762 (key
->values
[i
].data_size
& ~VK_DATA_IN_OFFSET
));
765 /* copy subkeys into the struct regsubkey_ctr */
767 key
->subkey_index
= 0;
768 while ((subkey
= regfio_fetch_subkey( regfile
, key
))) {
769 result
= regsubkey_ctr_addkey(subkeys
, subkey
->keyname
);
770 if (!W_ERROR_IS_OK(result
)) {
771 TALLOC_FREE(subkeys
);
776 /* write this key and values out */
778 if (!store_reg_values(®istry_key
, values
)
779 || !store_reg_keys(®istry_key
, subkeys
))
781 DEBUG(0,("reg_load_tree: Failed to load %s!\n", topkeypath
));
782 result
= WERR_REG_IO_FAILURE
;
785 TALLOC_FREE(subkeys
);
787 if (!W_ERROR_IS_OK(result
)) {
791 /* now continue to load each subkey registry tree */
793 key
->subkey_index
= 0;
794 while ((subkey
= regfio_fetch_subkey(regfile
, key
))) {
795 path
= talloc_asprintf(regfile
->mem_ctx
,
802 result
= reg_load_tree(regfile
, path
, subkey
);
803 if (!W_ERROR_IS_OK(result
)) {
811 /*******************************************************************
812 ********************************************************************/
814 static WERROR
restore_registry_key(struct registry_key_handle
*krecord
,
818 REGF_NK_REC
*rootkey
;
821 /* open the registry file....fail if the file already exists */
823 regfile
= regfio_open(fname
, (O_RDONLY
), 0);
824 if (regfile
== NULL
) {
825 DEBUG(0, ("restore_registry_key: failed to open \"%s\" (%s)\n",
826 fname
, strerror(errno
)));
827 return ntstatus_to_werror(map_nt_error_from_unix(errno
));
830 /* get the rootkey from the regf file and then load the tree
831 via recursive calls */
833 if (!(rootkey
= regfio_rootkey(regfile
))) {
834 regfio_close(regfile
);
835 return WERR_REG_FILE_INVALID
;
838 result
= reg_load_tree(regfile
, krecord
->name
, rootkey
);
842 regfio_close(regfile
);
847 WERROR
reg_restorekey(struct registry_key
*key
, const char *fname
)
849 return restore_registry_key(key
->key
, fname
);
852 /********************************************************************
853 ********************************************************************/
855 static WERROR
reg_write_tree(REGF_FILE
*regfile
, const char *keypath
,
859 struct regval_ctr
*values
;
860 struct regsubkey_ctr
*subkeys
;
862 char *key_tmp
= NULL
;
863 char *keyname
, *parentpath
;
864 char *subkeypath
= NULL
;
866 struct registry_key_handle registry_key
;
867 WERROR result
= WERR_OK
;
868 struct security_descriptor
*sec_desc
= NULL
;
871 return WERR_GENERAL_FAILURE
;
875 return WERR_OBJECT_PATH_INVALID
;
878 /* split up the registry key path */
880 key_tmp
= talloc_strdup(regfile
->mem_ctx
, keypath
);
884 if (!reg_split_key(key_tmp
, &parentpath
, &keyname
)) {
885 return WERR_OBJECT_PATH_INVALID
;
889 keyname
= parentpath
;
892 /* we need a registry_key_handle object here to enumerate subkeys and values */
894 ZERO_STRUCT(registry_key
);
896 registry_key
.name
= talloc_strdup(regfile
->mem_ctx
, keypath
);
897 if (registry_key
.name
== NULL
) {
901 registry_key
.ops
= reghook_cache_find(registry_key
.name
);
902 if (registry_key
.ops
== NULL
) {
906 /* lookup the values and subkeys */
908 result
= regsubkey_ctr_init(regfile
->mem_ctx
, &subkeys
);
909 W_ERROR_NOT_OK_RETURN(result
);
911 result
= regval_ctr_init(subkeys
, &values
);
912 W_ERROR_NOT_OK_RETURN(result
);
914 fetch_reg_keys(®istry_key
, subkeys
);
915 fetch_reg_values(®istry_key
, values
);
917 result
= regkey_get_secdesc(regfile
->mem_ctx
, ®istry_key
, &sec_desc
);
918 if (!W_ERROR_IS_OK(result
)) {
922 /* write out this key */
924 key
= regfio_write_key(regfile
, keyname
, values
, subkeys
, sec_desc
,
927 result
= WERR_CAN_NOT_COMPLETE
;
931 /* write each one of the subkeys out */
933 num_subkeys
= regsubkey_ctr_numkeys(subkeys
);
934 for (i
=0; i
<num_subkeys
; i
++) {
935 subkeyname
= regsubkey_ctr_specific_key(subkeys
, i
);
936 subkeypath
= talloc_asprintf(regfile
->mem_ctx
, "%s\\%s",
937 keypath
, subkeyname
);
938 if (subkeypath
== NULL
) {
942 result
= reg_write_tree(regfile
, subkeypath
, key
);
943 if (!W_ERROR_IS_OK(result
))
947 DEBUG(6, ("reg_write_tree: wrote key [%s]\n", keypath
));
950 TALLOC_FREE(subkeys
);
951 TALLOC_FREE(registry_key
.name
);
956 static WERROR
backup_registry_key(struct registry_key_handle
*krecord
,
962 /* open the registry file....fail if the file already exists */
964 regfile
= regfio_open(fname
, (O_RDWR
|O_CREAT
|O_EXCL
),
966 if (regfile
== NULL
) {
967 DEBUG(0,("backup_registry_key: failed to open \"%s\" (%s)\n",
968 fname
, strerror(errno
) ));
969 return ntstatus_to_werror(map_nt_error_from_unix(errno
));
972 /* write the registry tree to the file */
974 result
= reg_write_tree(regfile
, krecord
->name
, NULL
);
978 regfio_close(regfile
);
983 WERROR
reg_savekey(struct registry_key
*key
, const char *fname
)
985 return backup_registry_key(key
->key
, fname
);
988 /**********************************************************************
989 * Higher level utility functions
990 **********************************************************************/
992 WERROR
reg_deleteallvalues(struct registry_key
*key
)
997 if (!(key
->key
->access_granted
& KEY_SET_VALUE
)) {
998 return WERR_ACCESS_DENIED
;
1001 if (!W_ERROR_IS_OK(err
= fill_value_cache(key
))) {
1005 for (i
=0; i
< regval_ctr_numvals(key
->values
); i
++) {
1006 struct regval_blob
*blob
;
1007 blob
= regval_ctr_specific_value(key
->values
, i
);
1008 regval_ctr_delvalue(key
->values
, regval_name(blob
));
1011 if (!store_reg_values(key
->key
, key
->values
)) {
1012 TALLOC_FREE(key
->values
);
1013 return WERR_REG_IO_FAILURE
;
1020 * Utility function to open a complete registry path including the hive prefix.
1023 WERROR
reg_open_path(TALLOC_CTX
*mem_ctx
, const char *orig_path
,
1024 uint32 desired_access
, const struct nt_user_token
*token
,
1025 struct registry_key
**pkey
)
1027 struct registry_key
*hive
, *key
;
1031 if (!(path
= SMB_STRDUP(orig_path
))) {
1035 p
= strchr(path
, '\\');
1037 if ((p
== NULL
) || (p
[1] == '\0')) {
1039 * No key behind the hive, just return the hive
1042 err
= reg_openhive(mem_ctx
, path
, desired_access
, token
,
1044 if (!W_ERROR_IS_OK(err
)) {
1055 err
= reg_openhive(mem_ctx
, path
, KEY_ENUMERATE_SUB_KEYS
, token
,
1057 if (!W_ERROR_IS_OK(err
)) {
1062 err
= reg_openkey(mem_ctx
, hive
, p
+1, desired_access
, &key
);
1067 if (!W_ERROR_IS_OK(err
)) {
1076 * Utility function to delete a registry key with all its subkeys.
1077 * Note that reg_deletekey returns ACCESS_DENIED when called on a
1078 * key that has subkeys.
1080 static WERROR
reg_deletekey_recursive_internal(TALLOC_CTX
*ctx
,
1081 struct registry_key
*parent
,
1085 TALLOC_CTX
*mem_ctx
= NULL
;
1086 WERROR werr
= WERR_OK
;
1087 struct registry_key
*key
;
1088 char *subkey_name
= NULL
;
1091 mem_ctx
= talloc_new(ctx
);
1092 if (mem_ctx
== NULL
) {
1097 /* recurse through subkeys first */
1098 werr
= reg_openkey(mem_ctx
, parent
, path
, REG_KEY_ALL
, &key
);
1099 if (!W_ERROR_IS_OK(werr
)) {
1103 werr
= fill_subkey_cache(key
);
1104 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1107 * loop from top to bottom for perfomance:
1108 * this way, we need to rehash the regsubkey containers less
1110 for (i
= regsubkey_ctr_numkeys(key
->subkeys
) ; i
> 0; i
--) {
1111 subkey_name
= regsubkey_ctr_specific_key(key
->subkeys
, i
-1);
1112 werr
= reg_deletekey_recursive_internal(mem_ctx
, key
,
1115 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1119 /* now delete the actual key */
1120 werr
= reg_deletekey(parent
, path
);
1124 TALLOC_FREE(mem_ctx
);
1128 static WERROR
reg_deletekey_recursive_trans(TALLOC_CTX
*ctx
,
1129 struct registry_key
*parent
,
1135 werr
= regdb_transaction_start();
1136 if (!W_ERROR_IS_OK(werr
)) {
1137 DEBUG(0, ("reg_deletekey_recursive_trans: "
1138 "error starting transaction: %s\n",
1143 werr
= reg_deletekey_recursive_internal(ctx
, parent
, path
, del_key
);
1145 if (!W_ERROR_IS_OK(werr
)) {
1146 DEBUG(1, (__location__
" failed to delete key '%s' from key "
1147 "'%s': %s\n", path
, parent
->key
->name
,
1149 werr
= regdb_transaction_cancel();
1150 if (!W_ERROR_IS_OK(werr
)) {
1151 DEBUG(0, ("reg_deletekey_recursive_trans: "
1152 "error cancelling transaction: %s\n",
1156 werr
= regdb_transaction_commit();
1157 if (!W_ERROR_IS_OK(werr
)) {
1158 DEBUG(0, ("reg_deletekey_recursive_trans: "
1159 "error committing transaction: %s\n",
1167 WERROR
reg_deletekey_recursive(TALLOC_CTX
*ctx
,
1168 struct registry_key
*parent
,
1171 return reg_deletekey_recursive_trans(ctx
, parent
, path
, true);
1174 WERROR
reg_deletesubkeys_recursive(TALLOC_CTX
*ctx
,
1175 struct registry_key
*parent
,
1178 return reg_deletekey_recursive_trans(ctx
, parent
, path
, false);
1182 /* these two functions are unused. */
1185 * Utility function to create a registry key without opening the hive
1186 * before. Assumes the hive already exists.
1189 WERROR
reg_create_path(TALLOC_CTX
*mem_ctx
, const char *orig_path
,
1190 uint32 desired_access
,
1191 const struct nt_user_token
*token
,
1192 enum winreg_CreateAction
*paction
,
1193 struct registry_key
**pkey
)
1195 struct registry_key
*hive
;
1199 if (!(path
= SMB_STRDUP(orig_path
))) {
1203 p
= strchr(path
, '\\');
1205 if ((p
== NULL
) || (p
[1] == '\0')) {
1207 * No key behind the hive, just return the hive
1210 err
= reg_openhive(mem_ctx
, path
, desired_access
, token
,
1212 if (!W_ERROR_IS_OK(err
)) {
1218 *paction
= REG_OPENED_EXISTING_KEY
;
1224 err
= reg_openhive(mem_ctx
, path
,
1225 (strchr(p
+1, '\\') != NULL
) ?
1226 KEY_ENUMERATE_SUB_KEYS
: KEY_CREATE_SUB_KEY
,
1228 if (!W_ERROR_IS_OK(err
)) {
1233 err
= reg_createkey(mem_ctx
, hive
, p
+1, desired_access
, pkey
, paction
);
1240 * Utility function to create a registry key without opening the hive
1241 * before. Will not delete a hive.
1244 WERROR
reg_delete_path(const struct nt_user_token
*token
,
1245 const char *orig_path
)
1247 struct registry_key
*hive
;
1251 if (!(path
= SMB_STRDUP(orig_path
))) {
1255 p
= strchr(path
, '\\');
1257 if ((p
== NULL
) || (p
[1] == '\0')) {
1259 return WERR_INVALID_PARAM
;
1264 err
= reg_openhive(NULL
, path
,
1265 (strchr(p
+1, '\\') != NULL
) ?
1266 KEY_ENUMERATE_SUB_KEYS
: KEY_CREATE_SUB_KEY
,
1268 if (!W_ERROR_IS_OK(err
)) {
1273 err
= reg_deletekey(hive
, p
+1);