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"
33 #include "../libcli/security/secdesc.h"
36 #define DBGC_CLASS DBGC_REGISTRY
38 static struct db_context
*regdb
= NULL
;
39 static int regdb_refcount
;
41 static bool regdb_key_exists(struct db_context
*db
, const char *key
);
42 static bool regdb_key_is_base_key(const char *key
);
43 static WERROR
regdb_fetch_keys_internal(struct db_context
*db
, const char *key
,
44 struct regsubkey_ctr
*ctr
);
45 static bool regdb_store_keys_internal(struct db_context
*db
, const char *key
,
46 struct regsubkey_ctr
*ctr
);
47 static int regdb_fetch_values_internal(struct db_context
*db
, const char* key
,
48 struct regval_ctr
*values
);
49 static bool regdb_store_values_internal(struct db_context
*db
, const char *key
,
50 struct regval_ctr
*values
);
52 static NTSTATUS
create_sorted_subkeys(const char *key
);
54 /* List the deepest path into the registry. All part components will be created.*/
56 /* If you want to have a part of the path controlled by the tdb and part by
57 a virtual registry db (e.g. printing), then you have to list the deepest path.
58 For example,"HKLM/SOFTWARE/Microsoft/Windows NT/CurrentVersion/Print"
59 allows the reg_db backend to handle everything up to
60 "HKLM/SOFTWARE/Microsoft/Windows NT/CurrentVersion" and then we'll hook
61 the reg_printing backend onto the last component of the path (see
62 KEY_PRINTING_2K in include/rpc_reg.h) --jerry */
64 static const char *builtin_registry_paths
[] = {
68 KEY_PRINTING
"\\Forms",
69 KEY_PRINTING
"\\Printers",
70 KEY_PRINTING
"\\Environments\\Windows NT x86\\Print Processors\\winprint",
77 KEY_SAMBA_GROUP_POLICY
,
78 KEY_GP_MACHINE_POLICY
,
79 KEY_GP_MACHINE_WIN_POLICY
,
82 KEY_GP_USER_WIN_POLICY
,
83 "HKLM\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\GPExtensions",
84 "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Print\\Monitors",
86 "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\DefaultUserConfiguration",
95 struct builtin_regkey_value
{
97 const char *valuename
;
105 static struct builtin_regkey_value builtin_registry_values
[] = {
106 { KEY_PRINTING_PORTS
,
107 SAMBA_PRINTER_PORT_NAME
, REG_SZ
, { "" } },
109 "DefaultSpoolDirectory", REG_SZ
, { "C:\\Windows\\System32\\Spool\\Printers" } },
111 "DisplayName", REG_SZ
, { "Event Log" } },
113 "ErrorControl", REG_DWORD
, { (char*)0x00000001 } },
114 { NULL
, NULL
, 0, { NULL
} }
118 * Initialize a key in the registry:
119 * create each component key of the specified path.
121 static WERROR
init_registry_key_internal(struct db_context
*db
,
122 const char *add_path
)
125 TALLOC_CTX
*frame
= talloc_stackframe();
128 char *remaining
= NULL
;
131 struct regsubkey_ctr
*subkeys
;
134 DEBUG(6, ("init_registry_key: Adding [%s]\n", add_path
));
136 path
= talloc_strdup(frame
, add_path
);
137 base
= talloc_strdup(frame
, "");
138 if (!path
|| !base
) {
144 while (next_token_talloc(frame
, &p
, &keyname
, "\\")) {
146 /* build up the registry path from the components */
149 base
= talloc_asprintf(frame
, "%s\\", base
);
155 base
= talloc_asprintf_append(base
, "%s", keyname
);
161 /* get the immediate subkeyname (if we have one ) */
163 subkeyname
= talloc_strdup(frame
, "");
169 remaining
= talloc_strdup(frame
, p
);
176 if (!next_token_talloc(frame
, &p2
,
179 subkeyname
= talloc_strdup(frame
,p2
);
187 DEBUG(10,("init_registry_key: Storing key [%s] with "
188 "subkey [%s]\n", base
,
189 *subkeyname
? subkeyname
: "NULL"));
191 /* we don't really care if the lookup succeeds or not
192 * since we are about to update the record.
193 * We just want any subkeys already present */
195 werr
= regsubkey_ctr_init(frame
, &subkeys
);
196 if (!W_ERROR_IS_OK(werr
)) {
197 DEBUG(0,("talloc() failure!\n"));
201 werr
= regdb_fetch_keys_internal(db
, base
, subkeys
);
202 if (!W_ERROR_IS_OK(werr
) &&
203 !W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
))
209 werr
= regsubkey_ctr_addkey(subkeys
, subkeyname
);
210 if (!W_ERROR_IS_OK(werr
)) {
214 if (!regdb_store_keys_internal(db
, base
, subkeys
)) {
215 werr
= WERR_CAN_NOT_COMPLETE
;
227 struct init_registry_key_context
{
228 const char *add_path
;
231 static NTSTATUS
init_registry_key_action(struct db_context
*db
,
234 struct init_registry_key_context
*init_ctx
=
235 (struct init_registry_key_context
*)private_data
;
237 return werror_to_ntstatus(init_registry_key_internal(
238 db
, init_ctx
->add_path
));
242 * Initialize a key in the registry:
243 * create each component key of the specified path,
244 * wrapped in one db transaction.
246 WERROR
init_registry_key(const char *add_path
)
248 struct init_registry_key_context init_ctx
;
250 if (regdb_key_exists(regdb
, add_path
)) {
254 init_ctx
.add_path
= add_path
;
256 return ntstatus_to_werror(dbwrap_trans_do(regdb
,
257 init_registry_key_action
,
261 /***********************************************************************
262 Open the registry data in the tdb
263 ***********************************************************************/
265 static void regdb_ctr_add_value(struct regval_ctr
*ctr
,
266 struct builtin_regkey_value
*value
)
268 switch(value
->type
) {
270 regval_ctr_addvalue(ctr
, value
->valuename
, REG_DWORD
,
271 (uint8_t *)&value
->data
.dw_value
,
276 regval_ctr_addvalue_sz(ctr
, value
->valuename
,
281 DEBUG(0, ("regdb_ctr_add_value: invalid value type in "
282 "registry values [%d]\n", value
->type
));
286 static NTSTATUS
init_registry_data_action(struct db_context
*db
,
290 TALLOC_CTX
*frame
= talloc_stackframe();
291 struct regval_ctr
*values
;
294 /* loop over all of the predefined paths and add each component */
296 for (i
=0; builtin_registry_paths
[i
] != NULL
; i
++) {
297 if (regdb_key_exists(db
, builtin_registry_paths
[i
])) {
300 status
= werror_to_ntstatus(init_registry_key_internal(db
,
301 builtin_registry_paths
[i
]));
302 if (!NT_STATUS_IS_OK(status
)) {
307 /* loop over all of the predefined values and add each component */
309 for (i
=0; builtin_registry_values
[i
].path
!= NULL
; i
++) {
312 werr
= regval_ctr_init(frame
, &values
);
313 if (!W_ERROR_IS_OK(werr
)) {
314 status
= werror_to_ntstatus(werr
);
318 regdb_fetch_values_internal(db
,
319 builtin_registry_values
[i
].path
,
322 /* preserve existing values across restarts. Only add new ones */
324 if (!regval_ctr_key_exists(values
,
325 builtin_registry_values
[i
].valuename
))
327 regdb_ctr_add_value(values
,
328 &builtin_registry_values
[i
]);
329 regdb_store_values_internal(db
,
330 builtin_registry_values
[i
].path
,
336 status
= NT_STATUS_OK
;
344 WERROR
init_registry_data(void)
347 TALLOC_CTX
*frame
= talloc_stackframe();
348 struct regval_ctr
*values
;
352 * First, check for the existence of the needed keys and values.
353 * If all do already exist, we can save the writes.
355 for (i
=0; builtin_registry_paths
[i
] != NULL
; i
++) {
356 if (!regdb_key_exists(regdb
, builtin_registry_paths
[i
])) {
361 for (i
=0; builtin_registry_values
[i
].path
!= NULL
; i
++) {
362 werr
= regval_ctr_init(frame
, &values
);
363 W_ERROR_NOT_OK_GOTO_DONE(werr
);
365 regdb_fetch_values_internal(regdb
,
366 builtin_registry_values
[i
].path
,
368 if (!regval_ctr_key_exists(values
,
369 builtin_registry_values
[i
].valuename
))
384 * There are potentially quite a few store operations which are all
385 * indiviually wrapped in tdb transactions. Wrapping them in a single
386 * transaction gives just a single transaction_commit() to actually do
387 * its fsync()s. See tdb/common/transaction.c for info about nested
388 * transaction behaviour.
391 werr
= ntstatus_to_werror(dbwrap_trans_do(regdb
,
392 init_registry_data_action
,
400 static int regdb_normalize_keynames_fn(struct db_record
*rec
,
403 TALLOC_CTX
*mem_ctx
= talloc_tos();
407 if (rec
->key
.dptr
== NULL
|| rec
->key
.dsize
== 0) {
411 keyname
= strchr((const char *) rec
->key
.dptr
, '/');
413 struct db_record new_rec
;
415 keyname
= talloc_string_sub(mem_ctx
,
416 (const char *) rec
->key
.dptr
,
420 DEBUG(2, ("regdb_normalize_keynames_fn: Convert %s to %s\n",
421 (const char *) rec
->key
.dptr
,
424 new_rec
.value
= rec
->value
;
425 new_rec
.key
= string_term_tdb_data(keyname
);
426 new_rec
.private_data
= rec
->private_data
;
428 /* Delete the original record and store the normalized key */
429 status
= rec
->delete_rec(rec
);
430 if (!NT_STATUS_IS_OK(status
)) {
431 DEBUG(0,("regdb_normalize_keynames_fn: "
432 "tdb_delete for [%s] failed!\n",
437 status
= rec
->store(&new_rec
, new_rec
.value
, TDB_REPLACE
);
438 if (!NT_STATUS_IS_OK(status
)) {
439 DEBUG(0,("regdb_normalize_keynames_fn: "
440 "failed to store new record for [%s]!\n",
449 static WERROR
regdb_store_regdb_version(uint32_t version
)
452 const char *version_keyname
= "INFO/version";
455 return WERR_CAN_NOT_COMPLETE
;
458 status
= dbwrap_trans_store_int32(regdb
, version_keyname
, version
);
459 if (!NT_STATUS_IS_OK(status
)) {
460 DEBUG(1, ("regdb_store_regdb_version: error storing %s = %d: %s\n",
461 version_keyname
, version
, nt_errstr(status
)));
462 return ntstatus_to_werror(status
);
464 DEBUG(10, ("regdb_store_regdb_version: stored %s = %d\n",
465 version_keyname
, version
));
470 static WERROR
regdb_upgrade_v1_to_v2(void)
476 mem_ctx
= talloc_stackframe();
477 if (mem_ctx
== NULL
) {
481 rc
= regdb
->traverse(regdb
, regdb_normalize_keynames_fn
, mem_ctx
);
483 talloc_destroy(mem_ctx
);
486 return WERR_REG_IO_FAILURE
;
489 werr
= regdb_store_regdb_version(REGVER_V2
);
493 /***********************************************************************
494 Open the registry database
495 ***********************************************************************/
497 WERROR
regdb_init(void)
499 const char *vstring
= "INFO/version";
500 uint32 vers_id
, expected_version
;
504 DEBUG(10, ("regdb_init: incrementing refcount (%d->%d)\n",
505 regdb_refcount
, regdb_refcount
+1));
510 regdb
= db_open(NULL
, state_path("registry.tdb"), 0,
511 REG_TDB_FLAGS
, O_RDWR
, 0600);
513 regdb
= db_open(NULL
, state_path("registry.tdb"), 0,
514 REG_TDB_FLAGS
, O_RDWR
|O_CREAT
, 0600);
516 werr
= ntstatus_to_werror(map_nt_error_from_unix(errno
));
517 DEBUG(1,("regdb_init: Failed to open registry %s (%s)\n",
518 state_path("registry.tdb"), strerror(errno
) ));
522 DEBUG(10,("regdb_init: Successfully created registry tdb\n"));
526 DEBUG(10, ("regdb_init: registry db openend. refcount reset (%d)\n",
529 expected_version
= REGVER_V2
;
531 vers_id
= dbwrap_fetch_int32(regdb
, vstring
);
533 DEBUG(10, ("regdb_init: registry version uninitialized "
534 "(got %d), initializing to version %d\n",
535 vers_id
, expected_version
));
537 werr
= regdb_store_regdb_version(expected_version
);
541 if (vers_id
> expected_version
|| vers_id
== 0) {
542 DEBUG(1, ("regdb_init: unknown registry version %d "
543 "(code version = %d), refusing initialization\n",
544 vers_id
, expected_version
));
545 return WERR_CAN_NOT_COMPLETE
;
548 if (vers_id
== REGVER_V1
) {
549 DEBUG(10, ("regdb_init: got registry db version %d, upgrading "
550 "to version %d\n", REGVER_V1
, REGVER_V2
));
552 if (regdb
->transaction_start(regdb
) != 0) {
553 return WERR_REG_IO_FAILURE
;
556 werr
= regdb_upgrade_v1_to_v2();
557 if (!W_ERROR_IS_OK(werr
)) {
558 regdb
->transaction_cancel(regdb
);
562 if (regdb
->transaction_commit(regdb
) != 0) {
563 return WERR_REG_IO_FAILURE
;
569 /* future upgrade code should go here */
574 /***********************************************************************
575 Open the registry. Must already have been initialized by regdb_init()
576 ***********************************************************************/
578 WERROR
regdb_open( void )
580 WERROR result
= WERR_OK
;
583 DEBUG(10, ("regdb_open: incrementing refcount (%d->%d)\n",
584 regdb_refcount
, regdb_refcount
+1));
591 regdb
= db_open(NULL
, state_path("registry.tdb"), 0,
592 REG_TDB_FLAGS
, O_RDWR
, 0600);
594 result
= ntstatus_to_werror( map_nt_error_from_unix( errno
) );
595 DEBUG(0,("regdb_open: Failed to open %s! (%s)\n",
596 state_path("registry.tdb"), strerror(errno
) ));
602 DEBUG(10, ("regdb_open: registry db opened. refcount reset (%d)\n",
608 /***********************************************************************
609 ***********************************************************************/
611 int regdb_close( void )
613 if (regdb_refcount
== 0) {
619 DEBUG(10, ("regdb_close: decrementing refcount (%d->%d)\n",
620 regdb_refcount
+1, regdb_refcount
));
622 if ( regdb_refcount
> 0 )
625 SMB_ASSERT( regdb_refcount
>= 0 );
631 WERROR
regdb_transaction_start(void)
633 return (regdb
->transaction_start(regdb
) == 0) ?
634 WERR_OK
: WERR_REG_IO_FAILURE
;
637 WERROR
regdb_transaction_commit(void)
639 return (regdb
->transaction_commit(regdb
) == 0) ?
640 WERR_OK
: WERR_REG_IO_FAILURE
;
643 WERROR
regdb_transaction_cancel(void)
645 return (regdb
->transaction_cancel(regdb
) == 0) ?
646 WERR_OK
: WERR_REG_IO_FAILURE
;
649 /***********************************************************************
650 return the tdb sequence number of the registry tdb.
651 this is an indicator for the content of the registry
652 having changed. it will change upon regdb_init, too, though.
653 ***********************************************************************/
654 int regdb_get_seqnum(void)
656 return regdb
->get_seqnum(regdb
);
660 static WERROR
regdb_delete_key_with_prefix(struct db_context
*db
,
665 WERROR werr
= WERR_NOMEM
;
666 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
668 if (keyname
== NULL
) {
669 werr
= WERR_INVALID_PARAM
;
673 if (prefix
== NULL
) {
674 path
= discard_const_p(char, keyname
);
676 path
= talloc_asprintf(mem_ctx
, "%s\\%s", prefix
, keyname
);
682 path
= normalize_reg_path(mem_ctx
, path
);
687 werr
= ntstatus_to_werror(dbwrap_delete_bystring(db
, path
));
689 /* treat "not" found" as ok */
690 if (W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
)) {
695 talloc_free(mem_ctx
);
700 static WERROR
regdb_delete_values(struct db_context
*db
, const char *keyname
)
702 return regdb_delete_key_with_prefix(db
, keyname
, REG_VALUE_PREFIX
);
705 static WERROR
regdb_delete_secdesc(struct db_context
*db
, const char *keyname
)
707 return regdb_delete_key_with_prefix(db
, keyname
, REG_SECDESC_PREFIX
);
710 static WERROR
regdb_delete_subkeylist(struct db_context
*db
, const char *keyname
)
712 return regdb_delete_key_with_prefix(db
, keyname
, NULL
);
715 static WERROR
regdb_delete_sorted_subkeys(struct db_context
*db
,
718 return regdb_delete_key_with_prefix(db
, keyname
, REG_SORTED_SUBKEYS_PREFIX
);
722 static WERROR
regdb_delete_key_lists(struct db_context
*db
, const char *keyname
)
726 werr
= regdb_delete_values(db
, keyname
);
727 if (!W_ERROR_IS_OK(werr
)) {
728 DEBUG(1, (__location__
" Deleting %s\\%s failed: %s\n",
729 REG_VALUE_PREFIX
, keyname
, win_errstr(werr
)));
733 werr
= regdb_delete_secdesc(db
, keyname
);
734 if (!W_ERROR_IS_OK(werr
)) {
735 DEBUG(1, (__location__
" Deleting %s\\%s failed: %s\n",
736 REG_SECDESC_PREFIX
, keyname
, win_errstr(werr
)));
740 werr
= regdb_delete_sorted_subkeys(db
, keyname
);
741 if (!W_ERROR_IS_OK(werr
)) {
742 DEBUG(1, (__location__
" Deleting %s\\%s failed: %s\n",
743 REG_SORTED_SUBKEYS_PREFIX
, keyname
,
748 werr
= regdb_delete_subkeylist(db
, keyname
);
749 if (!W_ERROR_IS_OK(werr
)) {
750 DEBUG(1, (__location__
" Deleting %s failed: %s\n",
751 keyname
, win_errstr(werr
)));
759 /***********************************************************************
760 Add subkey strings to the registry tdb under a defined key
761 fmt is the same format as tdb_pack except this function only supports
763 ***********************************************************************/
765 static WERROR
regdb_store_keys_internal2(struct db_context
*db
,
767 struct regsubkey_ctr
*ctr
)
770 uint8
*buffer
= NULL
;
773 uint32 num_subkeys
= regsubkey_ctr_numkeys(ctr
);
774 char *keyname
= NULL
;
775 TALLOC_CTX
*ctx
= talloc_stackframe();
779 werr
= WERR_INVALID_PARAM
;
783 keyname
= talloc_strdup(ctx
, key
);
789 keyname
= normalize_reg_path(ctx
, keyname
);
795 /* allocate some initial memory */
797 buffer
= (uint8
*)SMB_MALLOC(1024);
798 if (buffer
== NULL
) {
805 /* store the number of subkeys */
807 len
+= tdb_pack(buffer
+len
, buflen
-len
, "d", num_subkeys
);
809 /* pack all the strings */
811 for (i
=0; i
<num_subkeys
; i
++) {
814 thistime
= tdb_pack(buffer
+len
, buflen
-len
, "f",
815 regsubkey_ctr_specific_key(ctr
, i
));
816 if (len
+thistime
> buflen
) {
819 * tdb_pack hasn't done anything because of the short
820 * buffer, allocate extra space.
822 buffer
= SMB_REALLOC_ARRAY(buffer
, uint8_t,
825 DEBUG(0, ("regdb_store_keys: Failed to realloc "
826 "memory of size [%u]\n",
827 (unsigned int)(len
+thistime
)*2));
831 buflen
= (len
+thistime
)*2;
832 thistime2
= tdb_pack(
833 buffer
+len
, buflen
-len
, "f",
834 regsubkey_ctr_specific_key(ctr
, i
));
835 if (thistime2
!= thistime
) {
836 DEBUG(0, ("tdb_pack failed\n"));
837 werr
= WERR_CAN_NOT_COMPLETE
;
844 /* finally write out the data */
848 werr
= ntstatus_to_werror(dbwrap_store_bystring(db
, keyname
, dbuf
,
850 W_ERROR_NOT_OK_GOTO_DONE(werr
);
853 * recreate the sorted subkey cache for regdb_key_exists()
855 werr
= ntstatus_to_werror(create_sorted_subkeys(keyname
));
863 /***********************************************************************
864 Store the new subkey record and create any child key records that
865 do not currently exist
866 ***********************************************************************/
868 struct regdb_store_keys_context
{
870 struct regsubkey_ctr
*ctr
;
873 static NTSTATUS
regdb_store_keys_action(struct db_context
*db
,
876 struct regdb_store_keys_context
*store_ctx
;
880 struct regsubkey_ctr
*subkeys
= NULL
, *old_subkeys
= NULL
;
881 char *oldkeyname
= NULL
;
882 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
884 store_ctx
= (struct regdb_store_keys_context
*)private_data
;
887 * Re-fetch the old keys inside the transaction
890 werr
= regsubkey_ctr_init(mem_ctx
, &old_subkeys
);
891 W_ERROR_NOT_OK_GOTO_DONE(werr
);
893 werr
= regdb_fetch_keys_internal(db
, store_ctx
->key
, old_subkeys
);
894 if (!W_ERROR_IS_OK(werr
) &&
895 !W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
))
901 * Make the store operation as safe as possible without transactions:
903 * (1) For each subkey removed from ctr compared with old_subkeys:
905 * (a) First delete the value db entry.
907 * (b) Next delete the secdesc db record.
909 * (c) Then delete the subkey list entry.
911 * (2) Now write the list of subkeys of the parent key,
912 * deleting removed entries and adding new ones.
914 * (3) Finally create the subkey list entries for the added keys.
916 * This way if we crash half-way in between deleting the subkeys
917 * and storing the parent's list of subkeys, no old data can pop up
918 * out of the blue when re-adding keys later on.
921 /* (1) delete removed keys' lists (values/secdesc/subkeys) */
923 num_subkeys
= regsubkey_ctr_numkeys(old_subkeys
);
924 for (i
=0; i
<num_subkeys
; i
++) {
925 oldkeyname
= regsubkey_ctr_specific_key(old_subkeys
, i
);
927 if (regsubkey_ctr_key_exists(store_ctx
->ctr
, oldkeyname
)) {
929 * It's still around, don't delete
934 path
= talloc_asprintf(mem_ctx
, "%s\\%s", store_ctx
->key
,
941 werr
= regdb_delete_key_lists(db
, path
);
942 W_ERROR_NOT_OK_GOTO_DONE(werr
);
947 TALLOC_FREE(old_subkeys
);
949 /* (2) store the subkey list for the parent */
951 werr
= regdb_store_keys_internal2(db
, store_ctx
->key
, store_ctx
->ctr
);
952 if (!W_ERROR_IS_OK(werr
)) {
953 DEBUG(0,("regdb_store_keys: Failed to store new subkey list "
954 "for parent [%s]: %s\n", store_ctx
->key
,
959 /* (3) now create records for any subkeys that don't already exist */
961 num_subkeys
= regsubkey_ctr_numkeys(store_ctx
->ctr
);
963 if (num_subkeys
== 0) {
964 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
965 W_ERROR_NOT_OK_GOTO_DONE(werr
);
967 werr
= regdb_store_keys_internal2(db
, store_ctx
->key
, subkeys
);
968 if (!W_ERROR_IS_OK(werr
)) {
969 DEBUG(0,("regdb_store_keys: Failed to store "
970 "new record for key [%s]: %s\n",
971 store_ctx
->key
, win_errstr(werr
)));
974 TALLOC_FREE(subkeys
);
977 for (i
=0; i
<num_subkeys
; i
++) {
978 path
= talloc_asprintf(mem_ctx
, "%s\\%s", store_ctx
->key
,
979 regsubkey_ctr_specific_key(store_ctx
->ctr
, i
));
984 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
985 W_ERROR_NOT_OK_GOTO_DONE(werr
);
987 werr
= regdb_fetch_keys_internal(db
, path
, subkeys
);
988 if (!W_ERROR_IS_OK(werr
)) {
989 /* create a record with 0 subkeys */
990 werr
= regdb_store_keys_internal2(db
, path
, subkeys
);
991 if (!W_ERROR_IS_OK(werr
)) {
992 DEBUG(0,("regdb_store_keys: Failed to store "
993 "new record for key [%s]: %s\n", path
,
999 TALLOC_FREE(subkeys
);
1006 talloc_free(mem_ctx
);
1007 return werror_to_ntstatus(werr
);
1010 static bool regdb_store_keys_internal(struct db_context
*db
, const char *key
,
1011 struct regsubkey_ctr
*ctr
)
1013 int num_subkeys
, old_num_subkeys
, i
;
1014 struct regsubkey_ctr
*old_subkeys
= NULL
;
1015 TALLOC_CTX
*ctx
= talloc_stackframe();
1018 struct regdb_store_keys_context store_ctx
;
1020 if (!regdb_key_is_base_key(key
) && !regdb_key_exists(db
, key
)) {
1025 * fetch a list of the old subkeys so we can determine if anything has
1029 werr
= regsubkey_ctr_init(ctx
, &old_subkeys
);
1030 if (!W_ERROR_IS_OK(werr
)) {
1031 DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
1035 werr
= regdb_fetch_keys_internal(db
, key
, old_subkeys
);
1036 if (!W_ERROR_IS_OK(werr
) &&
1037 !W_ERROR_EQUAL(werr
, WERR_NOT_FOUND
))
1042 num_subkeys
= regsubkey_ctr_numkeys(ctr
);
1043 old_num_subkeys
= regsubkey_ctr_numkeys(old_subkeys
);
1044 if ((num_subkeys
&& old_num_subkeys
) &&
1045 (num_subkeys
== old_num_subkeys
)) {
1047 for (i
= 0; i
< num_subkeys
; i
++) {
1048 if (strcmp(regsubkey_ctr_specific_key(ctr
, i
),
1049 regsubkey_ctr_specific_key(old_subkeys
, i
))
1055 if (i
== num_subkeys
) {
1057 * Nothing changed, no point to even start a tdb
1066 TALLOC_FREE(old_subkeys
);
1068 store_ctx
.key
= key
;
1069 store_ctx
.ctr
= ctr
;
1071 werr
= ntstatus_to_werror(dbwrap_trans_do(db
,
1072 regdb_store_keys_action
,
1075 ret
= W_ERROR_IS_OK(werr
);
1083 bool regdb_store_keys(const char *key
, struct regsubkey_ctr
*ctr
)
1085 return regdb_store_keys_internal(regdb
, key
, ctr
);
1089 * create a subkey of a given key
1092 struct regdb_create_subkey_context
{
1097 static NTSTATUS
regdb_create_subkey_action(struct db_context
*db
,
1101 struct regdb_create_subkey_context
*create_ctx
;
1102 struct regsubkey_ctr
*subkeys
;
1103 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1105 create_ctx
= (struct regdb_create_subkey_context
*)private_data
;
1107 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
1108 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1110 werr
= regdb_fetch_keys_internal(db
, create_ctx
->key
, subkeys
);
1111 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1113 werr
= regsubkey_ctr_addkey(subkeys
, create_ctx
->subkey
);
1114 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1116 werr
= regdb_store_keys_internal2(db
, create_ctx
->key
, subkeys
);
1117 if (!W_ERROR_IS_OK(werr
)) {
1118 DEBUG(0, (__location__
" failed to store new subkey list for "
1119 "parent key %s: %s\n", create_ctx
->key
,
1124 talloc_free(mem_ctx
);
1125 return werror_to_ntstatus(werr
);
1128 static WERROR
regdb_create_subkey(const char *key
, const char *subkey
)
1131 struct regsubkey_ctr
*subkeys
;
1132 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1133 struct regdb_create_subkey_context create_ctx
;
1135 if (!regdb_key_is_base_key(key
) && !regdb_key_exists(regdb
, key
)) {
1136 werr
= WERR_NOT_FOUND
;
1140 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
1141 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1143 werr
= regdb_fetch_keys_internal(regdb
, key
, subkeys
);
1144 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1146 if (regsubkey_ctr_key_exists(subkeys
, subkey
)) {
1151 talloc_free(subkeys
);
1153 create_ctx
.key
= key
;
1154 create_ctx
.subkey
= subkey
;
1156 werr
= ntstatus_to_werror(dbwrap_trans_do(regdb
,
1157 regdb_create_subkey_action
,
1161 talloc_free(mem_ctx
);
1166 * create a subkey of a given key
1169 struct regdb_delete_subkey_context
{
1175 static NTSTATUS
regdb_delete_subkey_action(struct db_context
*db
,
1179 struct regdb_delete_subkey_context
*delete_ctx
;
1180 struct regsubkey_ctr
*subkeys
;
1181 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1183 delete_ctx
= (struct regdb_delete_subkey_context
*)private_data
;
1185 werr
= regdb_delete_key_lists(db
, delete_ctx
->path
);
1186 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1188 werr
= regsubkey_ctr_init(mem_ctx
, &subkeys
);
1189 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1191 werr
= regdb_fetch_keys_internal(db
, delete_ctx
->key
, subkeys
);
1192 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1194 werr
= regsubkey_ctr_delkey(subkeys
, delete_ctx
->subkey
);
1195 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1197 werr
= regdb_store_keys_internal2(db
, delete_ctx
->key
, subkeys
);
1198 if (!W_ERROR_IS_OK(werr
)) {
1199 DEBUG(0, (__location__
" failed to store new subkey_list for "
1200 "parent key %s: %s\n", delete_ctx
->key
,
1205 talloc_free(mem_ctx
);
1206 return werror_to_ntstatus(werr
);
1209 static WERROR
regdb_delete_subkey(const char *key
, const char *subkey
)
1213 struct regdb_delete_subkey_context delete_ctx
;
1214 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1216 if (!regdb_key_is_base_key(key
) && !regdb_key_exists(regdb
, key
)) {
1217 werr
= WERR_NOT_FOUND
;
1221 path
= talloc_asprintf(mem_ctx
, "%s\\%s", key
, subkey
);
1227 if (!regdb_key_exists(regdb
, path
)) {
1232 delete_ctx
.key
= key
;
1233 delete_ctx
.subkey
= subkey
;
1234 delete_ctx
.path
= path
;
1236 werr
= ntstatus_to_werror(dbwrap_trans_do(regdb
,
1237 regdb_delete_subkey_action
,
1241 talloc_free(mem_ctx
);
1245 static TDB_DATA
regdb_fetch_key_internal(struct db_context
*db
,
1246 TALLOC_CTX
*mem_ctx
, const char *key
)
1251 path
= normalize_reg_path(mem_ctx
, key
);
1253 return make_tdb_data(NULL
, 0);
1256 data
= dbwrap_fetch_bystring(db
, mem_ctx
, path
);
1264 * check whether a given key name represents a base key,
1265 * i.e one without a subkey separator ('\').
1267 static bool regdb_key_is_base_key(const char *key
)
1269 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1277 path
= normalize_reg_path(mem_ctx
, key
);
1279 DEBUG(0, ("out of memory! (talloc failed)\n"));
1283 if (*path
== '\0') {
1287 ret
= (strrchr(path
, '\\') == NULL
);
1290 TALLOC_FREE(mem_ctx
);
1295 * regdb_key_exists() is a very frequent operation. It can be quite
1296 * time-consuming to fully fetch the parent's subkey list, talloc_strdup all
1297 * subkeys and then compare the keyname linearly to all the parent's subkeys.
1299 * The following code tries to make this operation as efficient as possible:
1300 * Per registry key we create a list of subkeys that is very efficient to
1301 * search for existence of a subkey. Its format is:
1303 * 4 bytes num_subkeys
1304 * 4*num_subkey bytes offset into the string array
1305 * then follows a sorted list of subkeys in uppercase
1307 * This record is created by create_sorted_subkeys() on demand if it does not
1308 * exist. scan_parent_subkeys() uses regdb->parse_record to search the sorted
1309 * list, the parsing code and the binary search can be found in
1310 * parent_subkey_scanner. The code uses parse_record() to avoid a memcpy of
1311 * the potentially large subkey record.
1313 * The sorted subkey record is deleted in regdb_store_keys_internal2 and
1314 * recreated on demand.
1317 static int cmp_keynames(char **p1
, char **p2
)
1319 return strcasecmp_m(*p1
, *p2
);
1322 struct create_sorted_subkeys_context
{
1324 const char *sorted_keyname
;
1327 static NTSTATUS
create_sorted_subkeys_action(struct db_context
*db
,
1330 char **sorted_subkeys
;
1331 struct regsubkey_ctr
*ctr
;
1338 struct create_sorted_subkeys_context
*sorted_ctx
;
1340 sorted_ctx
= (struct create_sorted_subkeys_context
*)private_data
;
1343 * In this function, we only treat failing of the actual write to
1344 * the db as a real error. All preliminary errors, at a stage when
1345 * nothing has been written to the DB yet are treated as success
1346 * to be committed (as an empty transaction).
1348 * The reason is that this (disposable) call might be nested in other
1349 * transactions. Doing a cancel here would destroy the possibility of
1350 * a transaction_commit for transactions that we might be wrapped in.
1353 status
= werror_to_ntstatus(regsubkey_ctr_init(talloc_tos(), &ctr
));
1354 if (!NT_STATUS_IS_OK(status
)) {
1355 /* don't treat this as an error */
1356 status
= NT_STATUS_OK
;
1360 status
= werror_to_ntstatus(regdb_fetch_keys_internal(db
,
1363 if (!NT_STATUS_IS_OK(status
)) {
1364 /* don't treat this as an error */
1365 status
= NT_STATUS_OK
;
1369 num_subkeys
= regsubkey_ctr_numkeys(ctr
);
1370 sorted_subkeys
= talloc_array(ctr
, char *, num_subkeys
);
1371 if (sorted_subkeys
== NULL
) {
1372 /* don't treat this as an error */
1376 len
= 4 + 4*num_subkeys
;
1378 for (i
= 0; i
< num_subkeys
; i
++) {
1379 sorted_subkeys
[i
] = talloc_strdup_upper(sorted_subkeys
,
1380 regsubkey_ctr_specific_key(ctr
, i
));
1381 if (sorted_subkeys
[i
] == NULL
) {
1382 /* don't treat this as an error */
1385 len
+= strlen(sorted_subkeys
[i
])+1;
1388 TYPESAFE_QSORT(sorted_subkeys
, num_subkeys
, cmp_keynames
);
1390 buf
= talloc_array(ctr
, char, len
);
1392 /* don't treat this as an error */
1395 p
= buf
+ 4 + 4*num_subkeys
;
1397 SIVAL(buf
, 0, num_subkeys
);
1399 for (i
=0; i
< num_subkeys
; i
++) {
1400 ptrdiff_t offset
= p
- buf
;
1401 SIVAL(buf
, 4 + 4*i
, offset
);
1402 strlcpy(p
, sorted_subkeys
[i
], len
-offset
);
1403 p
+= strlen(sorted_subkeys
[i
]) + 1;
1406 status
= dbwrap_store_bystring(
1407 db
, sorted_ctx
->sorted_keyname
, make_tdb_data((uint8_t *)buf
,
1416 static NTSTATUS
create_sorted_subkeys_internal(const char *key
,
1417 const char *sorted_keyname
)
1420 struct create_sorted_subkeys_context sorted_ctx
;
1422 sorted_ctx
.key
= key
;
1423 sorted_ctx
.sorted_keyname
= sorted_keyname
;
1425 status
= dbwrap_trans_do(regdb
,
1426 create_sorted_subkeys_action
,
1432 static NTSTATUS
create_sorted_subkeys(const char *key
)
1434 char *sorted_subkeys_keyname
;
1437 sorted_subkeys_keyname
= talloc_asprintf(talloc_tos(), "%s\\%s",
1438 REG_SORTED_SUBKEYS_PREFIX
,
1440 if (sorted_subkeys_keyname
== NULL
) {
1441 status
= NT_STATUS_NO_MEMORY
;
1445 status
= create_sorted_subkeys_internal(key
, sorted_subkeys_keyname
);
1451 struct scan_subkey_state
{
1457 static int parent_subkey_scanner(TDB_DATA key
, TDB_DATA data
,
1460 struct scan_subkey_state
*state
=
1461 (struct scan_subkey_state
*)private_data
;
1462 uint32_t num_subkeys
;
1465 if (data
.dsize
< sizeof(uint32_t)) {
1469 state
->scanned
= true;
1470 state
->found
= false;
1472 tdb_unpack(data
.dptr
, data
.dsize
, "d", &num_subkeys
);
1478 uint32_t idx
= (l
+u
)/2;
1479 char *s
= (char *)data
.dptr
+ IVAL(data
.dptr
, 4 + 4*idx
);
1480 int comparison
= strcmp(state
->name
, s
);
1482 if (comparison
< 0) {
1484 } else if (comparison
> 0) {
1487 state
->found
= true;
1494 static bool scan_parent_subkeys(struct db_context
*db
, const char *parent
,
1499 struct scan_subkey_state state
= { 0, };
1500 bool result
= false;
1505 path
= normalize_reg_path(talloc_tos(), parent
);
1510 key
= talloc_asprintf(talloc_tos(), "%s\\%s",
1511 REG_SORTED_SUBKEYS_PREFIX
, path
);
1516 state
.name
= talloc_strdup_upper(talloc_tos(), name
);
1517 if (state
.name
== NULL
) {
1520 state
.scanned
= false;
1522 res
= db
->parse_record(db
, string_term_tdb_data(key
),
1523 parent_subkey_scanner
, &state
);
1525 if (state
.scanned
) {
1526 result
= state
.found
;
1530 res
= db
->transaction_start(db
);
1532 DEBUG(0, ("error starting transaction\n"));
1536 DEBUG(2, (__location__
" WARNING: recreating the sorted "
1537 "subkeys cache for key '%s' from scan_parent_subkeys "
1538 "this should not happen (too frequently)...\n",
1541 status
= create_sorted_subkeys_internal(path
, key
);
1542 if (!NT_STATUS_IS_OK(status
)) {
1543 res
= db
->transaction_cancel(db
);
1545 smb_panic("Failed to cancel transaction.");
1550 res
= db
->parse_record(db
, string_term_tdb_data(key
),
1551 parent_subkey_scanner
, &state
);
1552 if ((res
== 0) && (state
.scanned
)) {
1553 result
= state
.found
;
1556 res
= db
->transaction_commit(db
);
1558 DEBUG(0, ("error committing transaction\n"));
1565 TALLOC_FREE(state
.name
);
1570 * Check for the existence of a key.
1572 * Existence of a key is authoritatively defined by its
1573 * existence in the list of subkeys of its parent key.
1574 * The exeption of this are keys without a parent key,
1575 * i.e. the "base" keys (HKLM, HKCU, ...).
1577 static bool regdb_key_exists(struct db_context
*db
, const char *key
)
1579 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1588 path
= normalize_reg_path(mem_ctx
, key
);
1590 DEBUG(0, ("out of memory! (talloc failed)\n"));
1594 if (*path
== '\0') {
1598 p
= strrchr(path
, '\\');
1600 /* this is a base key */
1601 value
= regdb_fetch_key_internal(db
, mem_ctx
, path
);
1602 ret
= (value
.dptr
!= NULL
);
1605 ret
= scan_parent_subkeys(db
, path
, p
+1);
1609 TALLOC_FREE(mem_ctx
);
1614 /***********************************************************************
1615 Retrieve an array of strings containing subkeys. Memory should be
1616 released by the caller.
1617 ***********************************************************************/
1619 static WERROR
regdb_fetch_keys_internal(struct db_context
*db
, const char *key
,
1620 struct regsubkey_ctr
*ctr
)
1628 TALLOC_CTX
*frame
= talloc_stackframe();
1631 DEBUG(11,("regdb_fetch_keys: Enter key => [%s]\n", key
? key
: "NULL"));
1633 if (!regdb_key_exists(db
, key
)) {
1634 DEBUG(10, ("key [%s] not found\n", key
));
1635 werr
= WERR_NOT_FOUND
;
1639 werr
= regsubkey_ctr_set_seqnum(ctr
, db
->get_seqnum(db
));
1640 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1642 value
= regdb_fetch_key_internal(db
, frame
, key
);
1644 if (value
.dsize
== 0 || value
.dptr
== NULL
) {
1645 DEBUG(10, ("regdb_fetch_keys: no subkeys found for key [%s]\n",
1651 buflen
= value
.dsize
;
1652 len
= tdb_unpack( buf
, buflen
, "d", &num_items
);
1653 if (len
== (uint32_t)-1) {
1654 werr
= WERR_NOT_FOUND
;
1658 werr
= regsubkey_ctr_reinit(ctr
);
1659 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1661 for (i
=0; i
<num_items
; i
++) {
1662 len
+= tdb_unpack(buf
+len
, buflen
-len
, "f", subkeyname
);
1663 werr
= regsubkey_ctr_addkey(ctr
, subkeyname
);
1664 if (!W_ERROR_IS_OK(werr
)) {
1665 DEBUG(5, ("regdb_fetch_keys: regsubkey_ctr_addkey "
1666 "failed: %s\n", win_errstr(werr
)));
1672 DEBUG(11,("regdb_fetch_keys: Exit [%d] items\n", num_items
));
1679 int regdb_fetch_keys(const char *key
, struct regsubkey_ctr
*ctr
)
1683 werr
= regdb_fetch_keys_internal(regdb
, key
, ctr
);
1684 if (!W_ERROR_IS_OK(werr
)) {
1688 return regsubkey_ctr_numkeys(ctr
);
1691 /****************************************************************************
1692 Unpack a list of registry values frem the TDB
1693 ***************************************************************************/
1695 static int regdb_unpack_values(struct regval_ctr
*values
, uint8
*buf
, int buflen
)
1702 uint32 num_values
= 0;
1705 /* loop and unpack the rest of the registry values */
1707 len
+= tdb_unpack(buf
+len
, buflen
-len
, "d", &num_values
);
1709 for ( i
=0; i
<num_values
; i
++ ) {
1710 /* unpack the next regval */
1715 valuename
[0] = '\0';
1716 len
+= tdb_unpack(buf
+len
, buflen
-len
, "fdB",
1722 regval_ctr_addvalue(values
, valuename
, type
,
1723 (uint8_t *)data_p
, size
);
1724 SAFE_FREE(data_p
); /* 'B' option to tdb_unpack does a malloc() */
1726 DEBUG(8,("specific: [%s], len: %d\n", valuename
, size
));
1732 /****************************************************************************
1733 Pack all values in all printer keys
1734 ***************************************************************************/
1736 static int regdb_pack_values(struct regval_ctr
*values
, uint8
*buf
, int buflen
)
1740 struct regval_blob
*val
;
1746 num_values
= regval_ctr_numvals( values
);
1748 /* pack the number of values first */
1750 len
+= tdb_pack( buf
+len
, buflen
-len
, "d", num_values
);
1752 /* loop over all values */
1754 for ( i
=0; i
<num_values
; i
++ ) {
1755 val
= regval_ctr_specific_value( values
, i
);
1756 len
+= tdb_pack(buf
+len
, buflen
-len
, "fdB",
1760 regval_data_p(val
) );
1766 /***********************************************************************
1767 Retrieve an array of strings containing subkeys. Memory should be
1768 released by the caller.
1769 ***********************************************************************/
1771 static int regdb_fetch_values_internal(struct db_context
*db
, const char* key
,
1772 struct regval_ctr
*values
)
1774 char *keystr
= NULL
;
1775 TALLOC_CTX
*ctx
= talloc_stackframe();
1780 DEBUG(10,("regdb_fetch_values: Looking for value of key [%s] \n", key
));
1782 if (!regdb_key_exists(db
, key
)) {
1786 keystr
= talloc_asprintf(ctx
, "%s\\%s", REG_VALUE_PREFIX
, key
);
1791 werr
= regval_ctr_set_seqnum(values
, db
->get_seqnum(db
));
1792 W_ERROR_NOT_OK_GOTO_DONE(werr
);
1794 value
= regdb_fetch_key_internal(db
, ctx
, keystr
);
1797 /* all keys have zero values by default */
1801 regdb_unpack_values(values
, value
.dptr
, value
.dsize
);
1802 ret
= regval_ctr_numvals(values
);
1809 int regdb_fetch_values(const char* key
, struct regval_ctr
*values
)
1811 return regdb_fetch_values_internal(regdb
, key
, values
);
1814 static bool regdb_store_values_internal(struct db_context
*db
, const char *key
,
1815 struct regval_ctr
*values
)
1817 TDB_DATA old_data
, data
;
1818 char *keystr
= NULL
;
1819 TALLOC_CTX
*ctx
= talloc_stackframe();
1822 bool result
= false;
1824 DEBUG(10,("regdb_store_values: Looking for value of key [%s] \n", key
));
1826 if (!regdb_key_exists(db
, key
)) {
1832 len
= regdb_pack_values(values
, data
.dptr
, data
.dsize
);
1834 DEBUG(0,("regdb_store_values: unable to pack values. len <= 0\n"));
1838 data
.dptr
= talloc_array(ctx
, uint8
, len
);
1841 len
= regdb_pack_values(values
, data
.dptr
, data
.dsize
);
1843 SMB_ASSERT( len
== data
.dsize
);
1845 keystr
= talloc_asprintf(ctx
, "%s\\%s", REG_VALUE_PREFIX
, key
);
1849 keystr
= normalize_reg_path(ctx
, keystr
);
1854 old_data
= dbwrap_fetch_bystring(db
, ctx
, keystr
);
1856 if ((old_data
.dptr
!= NULL
)
1857 && (old_data
.dsize
== data
.dsize
)
1858 && (memcmp(old_data
.dptr
, data
.dptr
, data
.dsize
) == 0))
1864 status
= dbwrap_trans_store_bystring(db
, keystr
, data
, TDB_REPLACE
);
1866 result
= NT_STATUS_IS_OK(status
);
1873 bool regdb_store_values(const char *key
, struct regval_ctr
*values
)
1875 return regdb_store_values_internal(regdb
, key
, values
);
1878 static WERROR
regdb_get_secdesc(TALLOC_CTX
*mem_ctx
, const char *key
,
1879 struct security_descriptor
**psecdesc
)
1884 TALLOC_CTX
*tmp_ctx
= talloc_stackframe();
1885 WERROR err
= WERR_OK
;
1887 DEBUG(10, ("regdb_get_secdesc: Getting secdesc of key [%s]\n", key
));
1889 if (!regdb_key_exists(regdb
, key
)) {
1894 tdbkey
= talloc_asprintf(tmp_ctx
, "%s\\%s", REG_SECDESC_PREFIX
, key
);
1895 if (tdbkey
== NULL
) {
1900 tdbkey
= normalize_reg_path(tmp_ctx
, tdbkey
);
1901 if (tdbkey
== NULL
) {
1906 data
= dbwrap_fetch_bystring(regdb
, tmp_ctx
, tdbkey
);
1907 if (data
.dptr
== NULL
) {
1912 status
= unmarshall_sec_desc(mem_ctx
, (uint8
*)data
.dptr
, data
.dsize
,
1915 if (NT_STATUS_EQUAL(status
, NT_STATUS_NO_MEMORY
)) {
1917 } else if (!NT_STATUS_IS_OK(status
)) {
1918 err
= WERR_REG_CORRUPT
;
1922 TALLOC_FREE(tmp_ctx
);
1926 static WERROR
regdb_set_secdesc(const char *key
,
1927 struct security_descriptor
*secdesc
)
1929 TALLOC_CTX
*mem_ctx
= talloc_stackframe();
1931 WERROR err
= WERR_NOMEM
;
1934 if (!regdb_key_exists(regdb
, key
)) {
1939 tdbkey
= talloc_asprintf(mem_ctx
, "%s\\%s", REG_SECDESC_PREFIX
, key
);
1940 if (tdbkey
== NULL
) {
1944 tdbkey
= normalize_reg_path(mem_ctx
, tdbkey
);
1945 if (tdbkey
== NULL
) {
1950 if (secdesc
== NULL
) {
1951 /* assuming a delete */
1952 err
= ntstatus_to_werror(dbwrap_trans_delete_bystring(regdb
,
1957 err
= ntstatus_to_werror(marshall_sec_desc(mem_ctx
, secdesc
,
1960 W_ERROR_NOT_OK_GOTO_DONE(err
);
1962 err
= ntstatus_to_werror(dbwrap_trans_store_bystring(regdb
, tdbkey
,
1966 TALLOC_FREE(mem_ctx
);
1970 bool regdb_subkeys_need_update(struct regsubkey_ctr
*subkeys
)
1972 return (regdb_get_seqnum() != regsubkey_ctr_get_seqnum(subkeys
));
1975 bool regdb_values_need_update(struct regval_ctr
*values
)
1977 return (regdb_get_seqnum() != regval_ctr_get_seqnum(values
));
1981 * Table of function pointers for default access
1984 struct registry_ops regdb_ops
= {
1985 .fetch_subkeys
= regdb_fetch_keys
,
1986 .fetch_values
= regdb_fetch_values
,
1987 .store_subkeys
= regdb_store_keys
,
1988 .store_values
= regdb_store_values
,
1989 .create_subkey
= regdb_create_subkey
,
1990 .delete_subkey
= regdb_delete_subkey
,
1991 .get_secdesc
= regdb_get_secdesc
,
1992 .set_secdesc
= regdb_set_secdesc
,
1993 .subkeys_need_update
= regdb_subkeys_need_update
,
1994 .values_need_update
= regdb_values_need_update