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
69 #define DBGC_CLASS DBGC_REGISTRY
72 /**********************************************************************
74 **********************************************************************/
76 static WERROR fill_value_cache(struct registry_key *key)
78 if (key->values != NULL) {
79 if (!reg_values_need_update(key->key, key->values)) {
84 if (!(key->values = TALLOC_ZERO_P(key, struct regval_ctr))) {
87 if (fetch_reg_values(key->key, key->values) == -1) {
88 TALLOC_FREE(key->values);
95 static WERROR fill_subkey_cache(struct registry_key *key)
99 if (key->subkeys != NULL) {
100 if (!reg_subkeys_need_update(key->key, key->subkeys)) {
105 werr = regsubkey_ctr_init(key, &(key->subkeys));
106 W_ERROR_NOT_OK_RETURN(werr);
108 if (fetch_reg_keys(key->key, key->subkeys) == -1) {
109 TALLOC_FREE(key->subkeys);
110 return WERR_NO_MORE_ITEMS;
116 static int regkey_destructor(struct registry_key_handle *key)
118 return regdb_close();
121 static WERROR regkey_open_onelevel(TALLOC_CTX *mem_ctx,
122 struct registry_key *parent,
124 const struct nt_user_token *token,
125 uint32 access_desired,
126 struct registry_key **pregkey)
128 WERROR result = WERR_OK;
129 struct registry_key *regkey;
130 struct registry_key_handle *key;
131 struct regsubkey_ctr *subkeys = NULL;
133 DEBUG(7,("regkey_open_onelevel: name = [%s]\n", name));
135 SMB_ASSERT(strchr(name, '\\') == NULL);
137 if (!(regkey = TALLOC_ZERO_P(mem_ctx, struct registry_key)) ||
138 !(regkey->token = dup_nt_token(regkey, token)) ||
139 !(regkey->key = TALLOC_ZERO_P(regkey, struct registry_key_handle)))
145 if ( !(W_ERROR_IS_OK(result = regdb_open())) ) {
150 talloc_set_destructor(key, regkey_destructor);
154 key->type = REG_KEY_GENERIC;
156 if (name[0] == '\0') {
158 * Open a copy of the parent key
161 result = WERR_BADFILE;
164 key->name = talloc_strdup(key, parent->key->name);
170 key->name = talloc_asprintf(key, "%s%s%s",
171 parent ? parent->key->name : "",
176 if (key->name == NULL) {
181 /* Tag this as a Performance Counter Key */
183 if( StrnCaseCmp(key->name, KEY_HKPD, strlen(KEY_HKPD)) == 0 )
184 key->type = REG_KEY_HKPD;
186 /* Look up the table of registry I/O operations */
188 if ( !(key->ops = reghook_cache_find( key->name )) ) {
189 DEBUG(0,("reg_open_onelevel: Failed to assign "
190 "registry_ops to [%s]\n", key->name ));
191 result = WERR_BADFILE;
195 /* check if the path really exists; failed is indicated by -1 */
196 /* if the subkey count failed, bail out */
198 result = regsubkey_ctr_init(key, &subkeys);
199 if (!W_ERROR_IS_OK(result)) {
203 if ( fetch_reg_keys( key, subkeys ) == -1 ) {
204 result = WERR_BADFILE;
208 TALLOC_FREE( subkeys );
210 if ( !regkey_access_check( key, access_desired, &key->access_granted,
212 result = WERR_ACCESS_DENIED;
220 if ( !W_ERROR_IS_OK(result) ) {
227 WERROR reg_openhive(TALLOC_CTX *mem_ctx, const char *hive,
228 uint32 desired_access,
229 const struct nt_user_token *token,
230 struct registry_key **pkey)
232 SMB_ASSERT(hive != NULL);
233 SMB_ASSERT(hive[0] != '\0');
234 SMB_ASSERT(strchr(hive, '\\') == NULL);
236 return regkey_open_onelevel(mem_ctx, NULL, hive, token, desired_access,
241 /**********************************************************************
243 **********************************************************************/
245 WERROR reg_openkey(TALLOC_CTX *mem_ctx, struct registry_key *parent,
246 const char *name, uint32 desired_access,
247 struct registry_key **pkey)
249 struct registry_key *direct_parent = parent;
251 char *p, *path, *to_free;
254 if (!(path = SMB_STRDUP(name))) {
261 if ((len > 0) && (path[len-1] == '\\')) {
265 while ((p = strchr(path, '\\')) != NULL) {
266 char *name_component;
267 struct registry_key *tmp;
269 if (!(name_component = SMB_STRNDUP(path, (p - path)))) {
274 err = regkey_open_onelevel(mem_ctx, direct_parent,
275 name_component, parent->token,
276 KEY_ENUMERATE_SUB_KEYS, &tmp);
277 SAFE_FREE(name_component);
279 if (!W_ERROR_IS_OK(err)) {
282 if (direct_parent != parent) {
283 TALLOC_FREE(direct_parent);
290 err = regkey_open_onelevel(mem_ctx, direct_parent, path, parent->token,
291 desired_access, pkey);
293 if (direct_parent != parent) {
294 TALLOC_FREE(direct_parent);
300 WERROR reg_enumkey(TALLOC_CTX *mem_ctx, struct registry_key *key,
301 uint32 idx, char **name, NTTIME *last_write_time)
305 if (!(key->key->access_granted & KEY_ENUMERATE_SUB_KEYS)) {
306 return WERR_ACCESS_DENIED;
309 if (!W_ERROR_IS_OK(err = fill_subkey_cache(key))) {
313 if (idx >= regsubkey_ctr_numkeys(key->subkeys)) {
314 return WERR_NO_MORE_ITEMS;
317 if (!(*name = talloc_strdup(mem_ctx,
318 regsubkey_ctr_specific_key(key->subkeys, idx))))
323 if (last_write_time) {
324 *last_write_time = 0;
330 WERROR reg_enumvalue(TALLOC_CTX *mem_ctx, struct registry_key *key,
331 uint32 idx, char **pname, struct registry_value **pval)
333 struct registry_value *val;
336 if (!(key->key->access_granted & KEY_QUERY_VALUE)) {
337 return WERR_ACCESS_DENIED;
340 if (!(W_ERROR_IS_OK(err = fill_value_cache(key)))) {
344 if (idx >= key->values->num_values) {
345 return WERR_NO_MORE_ITEMS;
348 err = registry_pull_value(mem_ctx, &val,
349 key->values->values[idx]->type,
350 key->values->values[idx]->data_p,
351 key->values->values[idx]->size,
352 key->values->values[idx]->size);
353 if (!W_ERROR_IS_OK(err)) {
358 && !(*pname = talloc_strdup(
359 mem_ctx, key->values->values[idx]->valuename))) {
368 WERROR reg_queryvalue(TALLOC_CTX *mem_ctx, struct registry_key *key,
369 const char *name, struct registry_value **pval)
374 if (!(key->key->access_granted & KEY_QUERY_VALUE)) {
375 return WERR_ACCESS_DENIED;
378 if (!(W_ERROR_IS_OK(err = fill_value_cache(key)))) {
382 for (i=0; i<key->values->num_values; i++) {
383 if (strequal(key->values->values[i]->valuename, name)) {
384 return reg_enumvalue(mem_ctx, key, i, NULL, pval);
391 WERROR reg_queryinfokey(struct registry_key *key, uint32_t *num_subkeys,
392 uint32_t *max_subkeylen, uint32_t *max_subkeysize,
393 uint32_t *num_values, uint32_t *max_valnamelen,
394 uint32_t *max_valbufsize, uint32_t *secdescsize,
395 NTTIME *last_changed_time)
401 struct security_descriptor *secdesc;
403 if (!(key->key->access_granted & KEY_QUERY_VALUE)) {
404 return WERR_ACCESS_DENIED;
407 if (!W_ERROR_IS_OK(fill_subkey_cache(key)) ||
408 !W_ERROR_IS_OK(fill_value_cache(key))) {
413 for (i=0; i< regsubkey_ctr_numkeys(key->subkeys); i++) {
414 max_len = MAX(max_len,
415 strlen(regsubkey_ctr_specific_key(key->subkeys, i)));
418 *num_subkeys = regsubkey_ctr_numkeys(key->subkeys);
419 *max_subkeylen = max_len;
420 *max_subkeysize = 0; /* Class length? */
424 for (i=0; i<key->values->num_values; i++) {
425 max_len = MAX(max_len,
426 strlen(key->values->values[i]->valuename));
427 max_size = MAX(max_size, key->values->values[i]->size);
430 *num_values = key->values->num_values;
431 *max_valnamelen = max_len;
432 *max_valbufsize = max_size;
434 if (!(mem_ctx = talloc_new(key))) {
438 err = regkey_get_secdesc(mem_ctx, key->key, &secdesc);
439 if (!W_ERROR_IS_OK(err)) {
440 TALLOC_FREE(mem_ctx);
444 *secdescsize = ndr_size_security_descriptor(secdesc, NULL, 0);
445 TALLOC_FREE(mem_ctx);
447 *last_changed_time = 0;
452 WERROR reg_createkey(TALLOC_CTX *ctx, struct registry_key *parent,
453 const char *subkeypath, uint32 desired_access,
454 struct registry_key **pkey,
455 enum winreg_CreateAction *paction)
457 struct registry_key *key = parent;
458 struct registry_key *create_parent;
464 * We must refuse to handle subkey-paths containing
465 * a '/' character because at a lower level, after
466 * normalization, '/' is treated as a key separator
469 if (strchr(subkeypath, '/') != NULL) {
470 return WERR_INVALID_PARAM;
473 if (!(mem_ctx = talloc_new(ctx))) return WERR_NOMEM;
475 if (!(path = talloc_strdup(mem_ctx, subkeypath))) {
480 while ((end = strchr(path, '\\')) != NULL) {
481 struct registry_key *tmp;
482 enum winreg_CreateAction action;
486 err = reg_createkey(mem_ctx, key, path,
487 KEY_ENUMERATE_SUB_KEYS, &tmp, &action);
488 if (!W_ERROR_IS_OK(err)) {
501 * At this point, "path" contains the one-element subkey of "key". We
502 * can try to open it.
505 err = reg_openkey(ctx, key, path, desired_access, pkey);
506 if (W_ERROR_IS_OK(err)) {
507 if (paction != NULL) {
508 *paction = REG_OPENED_EXISTING_KEY;
513 if (!W_ERROR_EQUAL(err, WERR_BADFILE)) {
515 * Something but "notfound" has happened, so bail out
521 * We have to make a copy of the current key, as we opened it only
522 * with ENUM_SUBKEY access.
525 err = reg_openkey(mem_ctx, key, "", KEY_CREATE_SUB_KEY,
527 if (!W_ERROR_IS_OK(err)) {
532 * Actually create the subkey
535 err = fill_subkey_cache(create_parent);
536 if (!W_ERROR_IS_OK(err)) goto done;
538 err = create_reg_subkey(key->key, path);
539 W_ERROR_NOT_OK_GOTO_DONE(err);
542 * Now open the newly created key
545 err = reg_openkey(ctx, create_parent, path, desired_access, pkey);
546 if (W_ERROR_IS_OK(err) && (paction != NULL)) {
547 *paction = REG_CREATED_NEW_KEY;
551 TALLOC_FREE(mem_ctx);
555 WERROR reg_deletekey(struct registry_key *parent, const char *path)
559 struct registry_key *tmp_key, *key;
560 TALLOC_CTX *mem_ctx = talloc_stackframe();
562 name = talloc_strdup(mem_ctx, path);
568 /* check if the key has subkeys */
569 err = reg_openkey(mem_ctx, parent, name, REG_KEY_READ, &key);
570 W_ERROR_NOT_OK_GOTO_DONE(err);
572 err = fill_subkey_cache(key);
573 W_ERROR_NOT_OK_GOTO_DONE(err);
575 if (regsubkey_ctr_numkeys(key->subkeys) > 0) {
576 err = WERR_ACCESS_DENIED;
580 /* no subkeys - proceed with delete */
581 end = strrchr(name, '\\');
585 err = reg_openkey(mem_ctx, parent, name,
586 KEY_CREATE_SUB_KEY, &tmp_key);
587 W_ERROR_NOT_OK_GOTO_DONE(err);
593 if (name[0] == '\0') {
594 err = WERR_INVALID_PARAM;
598 err = delete_reg_subkey(parent->key, name);
601 TALLOC_FREE(mem_ctx);
605 WERROR reg_setvalue(struct registry_key *key, const char *name,
606 const struct registry_value *val)
609 DATA_BLOB value_data;
612 if (!(key->key->access_granted & KEY_SET_VALUE)) {
613 return WERR_ACCESS_DENIED;
616 if (!W_ERROR_IS_OK(err = fill_value_cache(key))) {
620 err = registry_push_value(key, val, &value_data);
621 if (!W_ERROR_IS_OK(err)) {
625 res = regval_ctr_addvalue(key->values, name, val->type,
626 (char *)value_data.data, value_data.length);
627 TALLOC_FREE(value_data.data);
630 TALLOC_FREE(key->values);
634 if (!store_reg_values(key->key, key->values)) {
635 TALLOC_FREE(key->values);
636 return WERR_REG_IO_FAILURE;
642 static WERROR reg_value_exists(struct registry_key *key, const char *name)
646 for (i=0; i<key->values->num_values; i++) {
647 if (strequal(key->values->values[i]->valuename, name)) {
655 WERROR reg_deletevalue(struct registry_key *key, const char *name)
659 if (!(key->key->access_granted & KEY_SET_VALUE)) {
660 return WERR_ACCESS_DENIED;
663 if (!W_ERROR_IS_OK(err = fill_value_cache(key))) {
667 err = reg_value_exists(key, name);
668 if (!W_ERROR_IS_OK(err)) {
672 regval_ctr_delvalue(key->values, name);
674 if (!store_reg_values(key->key, key->values)) {
675 TALLOC_FREE(key->values);
676 return WERR_REG_IO_FAILURE;
682 WERROR reg_getkeysecurity(TALLOC_CTX *mem_ctx, struct registry_key *key,
683 struct security_descriptor **psecdesc)
685 return regkey_get_secdesc(mem_ctx, key->key, psecdesc);
688 WERROR reg_setkeysecurity(struct registry_key *key,
689 struct security_descriptor *psecdesc)
691 return regkey_set_secdesc(key->key, psecdesc);
694 WERROR reg_getversion(uint32_t *version)
696 if (version == NULL) {
697 return WERR_INVALID_PARAM;
700 *version = 0x00000005; /* Windows 2000 registry API version */
704 /*******************************************************************
705 Note: topkeypat is the *full* path that this *key will be
706 loaded into (including the name of the key)
707 ********************************************************************/
709 static WERROR reg_load_tree(REGF_FILE *regfile, const char *topkeypath,
713 struct registry_key_handle registry_key;
714 struct regval_ctr *values;
715 struct regsubkey_ctr *subkeys;
718 WERROR result = WERR_OK;
720 /* initialize the struct registry_key_handle structure */
722 registry_key.ops = reghook_cache_find(topkeypath);
723 if (!registry_key.ops) {
724 DEBUG(0, ("reg_load_tree: Failed to assign registry_ops "
725 "to [%s]\n", topkeypath));
729 registry_key.name = talloc_strdup(regfile->mem_ctx, topkeypath);
730 if (!registry_key.name) {
731 DEBUG(0, ("reg_load_tree: Talloc failed for reg_key.name!\n"));
735 /* now start parsing the values and subkeys */
737 result = regsubkey_ctr_init(regfile->mem_ctx, &subkeys);
738 W_ERROR_NOT_OK_RETURN(result);
740 values = TALLOC_ZERO_P(subkeys, struct regval_ctr);
741 if (values == NULL) {
745 /* copy values into the struct regval_ctr */
747 for (i=0; i<key->num_values; i++) {
748 regval_ctr_addvalue(values, key->values[i].valuename,
750 (char*)key->values[i].data,
751 (key->values[i].data_size & ~VK_DATA_IN_OFFSET));
754 /* copy subkeys into the struct regsubkey_ctr */
756 key->subkey_index = 0;
757 while ((subkey = regfio_fetch_subkey( regfile, key ))) {
758 result = regsubkey_ctr_addkey(subkeys, subkey->keyname);
759 if (!W_ERROR_IS_OK(result)) {
760 TALLOC_FREE(subkeys);
765 /* write this key and values out */
767 if (!store_reg_values(®istry_key, values)
768 || !store_reg_keys(®istry_key, subkeys))
770 DEBUG(0,("reg_load_tree: Failed to load %s!\n", topkeypath));
771 result = WERR_REG_IO_FAILURE;
774 TALLOC_FREE(subkeys);
776 if (!W_ERROR_IS_OK(result)) {
780 /* now continue to load each subkey registry tree */
782 key->subkey_index = 0;
783 while ((subkey = regfio_fetch_subkey(regfile, key))) {
784 path = talloc_asprintf(regfile->mem_ctx,
791 result = reg_load_tree(regfile, path, subkey);
792 if (!W_ERROR_IS_OK(result)) {
800 /*******************************************************************
801 ********************************************************************/
803 static WERROR restore_registry_key(struct registry_key_handle *krecord,
807 REGF_NK_REC *rootkey;
810 /* open the registry file....fail if the file already exists */
812 regfile = regfio_open(fname, (O_RDONLY), 0);
813 if (regfile == NULL) {
814 DEBUG(0, ("restore_registry_key: failed to open \"%s\" (%s)\n",
815 fname, strerror(errno)));
816 return ntstatus_to_werror(map_nt_error_from_unix(errno));
819 /* get the rootkey from the regf file and then load the tree
820 via recursive calls */
822 if (!(rootkey = regfio_rootkey(regfile))) {
823 regfio_close(regfile);
824 return WERR_REG_FILE_INVALID;
827 result = reg_load_tree(regfile, krecord->name, rootkey);
831 regfio_close(regfile);
836 WERROR reg_restorekey(struct registry_key *key, const char *fname)
838 return restore_registry_key(key->key, fname);
841 /********************************************************************
842 ********************************************************************/
844 static WERROR reg_write_tree(REGF_FILE *regfile, const char *keypath,
848 struct regval_ctr *values;
849 struct regsubkey_ctr *subkeys;
851 char *key_tmp = NULL;
852 char *keyname, *parentpath;
853 char *subkeypath = NULL;
855 struct registry_key_handle registry_key;
856 WERROR result = WERR_OK;
857 SEC_DESC *sec_desc = NULL;
860 return WERR_GENERAL_FAILURE;
864 return WERR_OBJECT_PATH_INVALID;
867 /* split up the registry key path */
869 key_tmp = talloc_strdup(regfile->mem_ctx, keypath);
873 if (!reg_split_key(key_tmp, &parentpath, &keyname)) {
874 return WERR_OBJECT_PATH_INVALID;
878 keyname = parentpath;
881 /* we need a registry_key_handle object here to enumerate subkeys and values */
883 ZERO_STRUCT(registry_key);
885 registry_key.name = talloc_strdup(regfile->mem_ctx, keypath);
886 if (registry_key.name == NULL) {
890 registry_key.ops = reghook_cache_find(registry_key.name);
891 if (registry_key.ops == NULL) {
895 /* lookup the values and subkeys */
897 result = regsubkey_ctr_init(regfile->mem_ctx, &subkeys);
898 W_ERROR_NOT_OK_RETURN(result);
900 values = TALLOC_ZERO_P(subkeys, struct regval_ctr);
901 if (values == NULL) {
905 fetch_reg_keys(®istry_key, subkeys);
906 fetch_reg_values(®istry_key, values);
908 result = regkey_get_secdesc(regfile->mem_ctx, ®istry_key, &sec_desc);
909 if (!W_ERROR_IS_OK(result)) {
913 /* write out this key */
915 key = regfio_write_key(regfile, keyname, values, subkeys, sec_desc,
918 result = WERR_CAN_NOT_COMPLETE;
922 /* write each one of the subkeys out */
924 num_subkeys = regsubkey_ctr_numkeys(subkeys);
925 for (i=0; i<num_subkeys; i++) {
926 subkeyname = regsubkey_ctr_specific_key(subkeys, i);
927 subkeypath = talloc_asprintf(regfile->mem_ctx, "%s\\%s",
928 keypath, subkeyname);
929 if (subkeypath == NULL) {
933 result = reg_write_tree(regfile, subkeypath, key);
934 if (!W_ERROR_IS_OK(result))
938 DEBUG(6, ("reg_write_tree: wrote key [%s]\n", keypath));
941 TALLOC_FREE(subkeys);
942 TALLOC_FREE(registry_key.name);
947 static WERROR backup_registry_key(struct registry_key_handle *krecord,
953 /* open the registry file....fail if the file already exists */
955 regfile = regfio_open(fname, (O_RDWR|O_CREAT|O_EXCL),
957 if (regfile == NULL) {
958 DEBUG(0,("backup_registry_key: failed to open \"%s\" (%s)\n",
959 fname, strerror(errno) ));
960 return ntstatus_to_werror(map_nt_error_from_unix(errno));
963 /* write the registry tree to the file */
965 result = reg_write_tree(regfile, krecord->name, NULL);
969 regfio_close(regfile);
974 WERROR reg_savekey(struct registry_key *key, const char *fname)
976 return backup_registry_key(key->key, fname);
979 /**********************************************************************
980 * Higher level utility functions
981 **********************************************************************/
983 WERROR reg_deleteallvalues(struct registry_key *key)
988 if (!(key->key->access_granted & KEY_SET_VALUE)) {
989 return WERR_ACCESS_DENIED;
992 if (!W_ERROR_IS_OK(err = fill_value_cache(key))) {
996 for (i=0; i<key->values->num_values; i++) {
997 regval_ctr_delvalue(key->values, key->values->values[i]->valuename);
1000 if (!store_reg_values(key->key, key->values)) {
1001 TALLOC_FREE(key->values);
1002 return WERR_REG_IO_FAILURE;
1009 * Utility function to open a complete registry path including the hive prefix.
1012 WERROR reg_open_path(TALLOC_CTX *mem_ctx, const char *orig_path,
1013 uint32 desired_access, const struct nt_user_token *token,
1014 struct registry_key **pkey)
1016 struct registry_key *hive, *key;
1020 if (!(path = SMB_STRDUP(orig_path))) {
1024 p = strchr(path, '\\');
1026 if ((p == NULL) || (p[1] == '\0')) {
1028 * No key behind the hive, just return the hive
1031 err = reg_openhive(mem_ctx, path, desired_access, token,
1033 if (!W_ERROR_IS_OK(err)) {
1044 err = reg_openhive(mem_ctx, path, KEY_ENUMERATE_SUB_KEYS, token,
1046 if (!W_ERROR_IS_OK(err)) {
1051 err = reg_openkey(mem_ctx, hive, p+1, desired_access, &key);
1056 if (!W_ERROR_IS_OK(err)) {
1065 * Utility function to delete a registry key with all its subkeys.
1066 * Note that reg_deletekey returns ACCESS_DENIED when called on a
1067 * key that has subkeys.
1069 static WERROR reg_deletekey_recursive_internal(TALLOC_CTX *ctx,
1070 struct registry_key *parent,
1074 TALLOC_CTX *mem_ctx = NULL;
1075 WERROR werr = WERR_OK;
1076 struct registry_key *key;
1077 char *subkey_name = NULL;
1080 mem_ctx = talloc_new(ctx);
1081 if (mem_ctx == NULL) {
1086 /* recurse through subkeys first */
1087 werr = reg_openkey(mem_ctx, parent, path, REG_KEY_ALL, &key);
1088 if (!W_ERROR_IS_OK(werr)) {
1092 werr = fill_subkey_cache(key);
1093 W_ERROR_NOT_OK_GOTO_DONE(werr);
1096 * loop from top to bottom for perfomance:
1097 * this way, we need to rehash the regsubkey containers less
1099 for (i = regsubkey_ctr_numkeys(key->subkeys) ; i > 0; i--) {
1100 subkey_name = regsubkey_ctr_specific_key(key->subkeys, i-1);
1101 werr = reg_deletekey_recursive_internal(mem_ctx, key,
1104 W_ERROR_NOT_OK_GOTO_DONE(werr);
1108 /* now delete the actual key */
1109 werr = reg_deletekey(parent, path);
1113 TALLOC_FREE(mem_ctx);
1117 static WERROR reg_deletekey_recursive_trans(TALLOC_CTX *ctx,
1118 struct registry_key *parent,
1124 werr = regdb_transaction_start();
1125 if (!W_ERROR_IS_OK(werr)) {
1126 DEBUG(0, ("reg_deletekey_recursive_trans: "
1127 "error starting transaction: %s\n",
1132 werr = reg_deletekey_recursive_internal(ctx, parent, path, del_key);
1134 if (!W_ERROR_IS_OK(werr)) {
1135 DEBUG(1, (__location__ " failed to delete key '%s' from key "
1136 "'%s': %s\n", path, parent->key->name,
1138 werr = regdb_transaction_cancel();
1139 if (!W_ERROR_IS_OK(werr)) {
1140 DEBUG(0, ("reg_deletekey_recursive_trans: "
1141 "error cancelling transaction: %s\n",
1145 werr = regdb_transaction_commit();
1146 if (!W_ERROR_IS_OK(werr)) {
1147 DEBUG(0, ("reg_deletekey_recursive_trans: "
1148 "error committing transaction: %s\n",
1156 WERROR reg_deletekey_recursive(TALLOC_CTX *ctx,
1157 struct registry_key *parent,
1160 return reg_deletekey_recursive_trans(ctx, parent, path, true);
1163 WERROR reg_deletesubkeys_recursive(TALLOC_CTX *ctx,
1164 struct registry_key *parent,
1167 return reg_deletekey_recursive_trans(ctx, parent, path, false);
1171 /* these two functions are unused. */
1174 * Utility function to create a registry key without opening the hive
1175 * before. Assumes the hive already exists.
1178 WERROR reg_create_path(TALLOC_CTX *mem_ctx, const char *orig_path,
1179 uint32 desired_access,
1180 const struct nt_user_token *token,
1181 enum winreg_CreateAction *paction,
1182 struct registry_key **pkey)
1184 struct registry_key *hive;
1188 if (!(path = SMB_STRDUP(orig_path))) {
1192 p = strchr(path, '\\');
1194 if ((p == NULL) || (p[1] == '\0')) {
1196 * No key behind the hive, just return the hive
1199 err = reg_openhive(mem_ctx, path, desired_access, token,
1201 if (!W_ERROR_IS_OK(err)) {
1207 *paction = REG_OPENED_EXISTING_KEY;
1213 err = reg_openhive(mem_ctx, path,
1214 (strchr(p+1, '\\') != NULL) ?
1215 KEY_ENUMERATE_SUB_KEYS : KEY_CREATE_SUB_KEY,
1217 if (!W_ERROR_IS_OK(err)) {
1222 err = reg_createkey(mem_ctx, hive, p+1, desired_access, pkey, paction);
1229 * Utility function to create a registry key without opening the hive
1230 * before. Will not delete a hive.
1233 WERROR reg_delete_path(const struct nt_user_token *token,
1234 const char *orig_path)
1236 struct registry_key *hive;
1240 if (!(path = SMB_STRDUP(orig_path))) {
1244 p = strchr(path, '\\');
1246 if ((p == NULL) || (p[1] == '\0')) {
1248 return WERR_INVALID_PARAM;
1253 err = reg_openhive(NULL, path,
1254 (strchr(p+1, '\\') != NULL) ?
1255 KEY_ENUMERATE_SUB_KEYS : KEY_CREATE_SUB_KEY,
1257 if (!W_ERROR_IS_OK(err)) {
1262 err = reg_deletekey(hive, p+1);