source/registry/reg_api.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Virtual Windows Registry Layer
   4  *  Copyright (C) Volker Lendecke 2006
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 /* Attempt to wrap the existing API in a more winreg.idl-like way */
  22
  23 #include "includes.h"
  24
  25 static WERROR fill_value_cache(struct registry_key *key)
  26 {
  27         if (key->values != NULL) {
  28                 return WERR_OK;
  29         }
  30
  31         if (!(key->values = TALLOC_ZERO_P(key, REGVAL_CTR))) {
  32                 return WERR_NOMEM;
  33         }
  34         if (fetch_reg_values(key->key, key->values) == -1) {
  35                 TALLOC_FREE(key->values);
  36                 return WERR_BADFILE;
  37         }
  38
  39         return WERR_OK;
  40 }
  41
  42 static WERROR fill_subkey_cache(struct registry_key *key)
  43 {
  44         if (key->subkeys != NULL) {
  45                 return WERR_OK;
  46         }
  47
  48         if (!(key->subkeys = TALLOC_ZERO_P(key, REGSUBKEY_CTR))) {
  49                 return WERR_NOMEM;
  50         }
  51
  52         if (fetch_reg_keys(key->key, key->subkeys) == -1) {
  53                 TALLOC_FREE(key->subkeys);
  54                 return WERR_NO_MORE_ITEMS;
  55         }
  56
  57         return WERR_OK;
  58 }
  59
  60 static int regkey_destructor(REGISTRY_KEY *key)
  61 {
  62         return regdb_close();
  63 }
  64
  65 static WERROR regkey_open_onelevel(TALLOC_CTX *mem_ctx,
  66                                    struct registry_key *parent,
  67                                    const char *name,
  68                                    const struct nt_user_token *token,
  69                                    uint32 access_desired,
  70                                    struct registry_key **pregkey)
  71 {
  72         WERROR          result = WERR_OK;
  73         struct registry_key *regkey;
  74         REGISTRY_KEY *key;
  75         REGSUBKEY_CTR   *subkeys = NULL;
  76
  77         DEBUG(7,("regkey_open_onelevel: name = [%s]\n", name));
  78
  79         SMB_ASSERT(strchr(name, '\\') == NULL);
  80
  81         if (!(regkey = TALLOC_ZERO_P(mem_ctx, struct registry_key)) ||
  82             !(regkey->token = dup_nt_token(regkey, token)) ||
  83             !(regkey->key = TALLOC_ZERO_P(regkey, REGISTRY_KEY))) {
  84                 result = WERR_NOMEM;
  85                 goto done;
  86         }
  87
  88         if ( !(W_ERROR_IS_OK(result = regdb_open())) ) {
  89                 goto done;
  90         }
  91
  92         key = regkey->key;
  93         talloc_set_destructor(key, regkey_destructor);
  94
  95         /* initialization */
  96
  97         key->type = REG_KEY_GENERIC;
  98
  99         if (name[0] == '\0') {
 100                 /*
 101                  * Open a copy of the parent key
 102                  */
 103                 if (!parent) {
 104                         result = WERR_BADFILE;
 105                         goto done;
 106                 }
 107                 key->name = talloc_strdup(key, parent->key->name);
 108         }
 109         else {
 110                 /*
 111                  * Normal subkey open
 112                  */
 113                 key->name = talloc_asprintf(key, "%s%s%s",
 114                                             parent ? parent->key->name : "",
 115                                             parent ? "\\": "",
 116                                             name);
 117         }
 118
 119         if (key->name == NULL) {
 120                 result = WERR_NOMEM;
 121                 goto done;
 122         }
 123
 124         /* Tag this as a Performance Counter Key */
 125
 126         if( StrnCaseCmp(key->name, KEY_HKPD, strlen(KEY_HKPD)) == 0 )
 127                 key->type = REG_KEY_HKPD;
 128
 129         /* Look up the table of registry I/O operations */
 130
 131         if ( !(key->hook = reghook_cache_find( key->name )) ) {
 132                 DEBUG(0,("reg_open_onelevel: Failed to assigned a "
 133                          "REGISTRY_HOOK to [%s]\n", key->name ));
 134                 result = WERR_BADFILE;
 135                 goto done;
 136         }
 137
 138         /* check if the path really exists; failed is indicated by -1 */
 139         /* if the subkey count failed, bail out */
 140
 141         if ( !(subkeys = TALLOC_ZERO_P( key, REGSUBKEY_CTR )) ) {
 142                 result = WERR_NOMEM;
 143                 goto done;
 144         }
 145
 146         if ( fetch_reg_keys( key, subkeys ) == -1 )  {
 147                 result = WERR_BADFILE;
 148                 goto done;
 149         }
 150
 151         TALLOC_FREE( subkeys );
 152
 153         if ( !regkey_access_check( key, access_desired, &key->access_granted,
 154                                    token ) ) {
 155                 result = WERR_ACCESS_DENIED;
 156                 goto done;
 157         }
 158
 159         *pregkey = regkey;
 160         result = WERR_OK;
 161
 162 done:
 163         if ( !W_ERROR_IS_OK(result) ) {
 164                 TALLOC_FREE(regkey);
 165         }
 166
 167         return result;
 168 }
 169
 170 WERROR reg_openhive(TALLOC_CTX *mem_ctx, const char *hive,
 171                     uint32 desired_access,
 172                     const struct nt_user_token *token,
 173                     struct registry_key **pkey)
 174 {
 175         SMB_ASSERT(hive != NULL);
 176         SMB_ASSERT(hive[0] != '\0');
 177         SMB_ASSERT(strchr(hive, '\\') == NULL);
 178
 179         return regkey_open_onelevel(mem_ctx, NULL, hive, token, desired_access,
 180                                     pkey);
 181 }
 182
 183 WERROR reg_openkey(TALLOC_CTX *mem_ctx, struct registry_key *parent,
 184                    const char *name, uint32 desired_access,
 185                    struct registry_key **pkey)
 186 {
 187         struct registry_key *direct_parent = parent;
 188         WERROR err;
 189         char *p, *path, *to_free;
 190         size_t len;
 191
 192         if (!(path = SMB_STRDUP(name))) {
 193                 return WERR_NOMEM;
 194         }
 195         to_free = path;
 196
 197         len = strlen(path);
 198
 199         if ((len > 0) && (path[len-1] == '\\')) {
 200                 path[len-1] = '\0';
 201         }
 202
 203         while ((p = strchr(path, '\\')) != NULL) {
 204                 char *name_component;
 205                 struct registry_key *tmp;
 206
 207                 if (!(name_component = SMB_STRNDUP(path, (p - path)))) {
 208                         err = WERR_NOMEM;
 209                         goto error;
 210                 }
 211
 212                 err = regkey_open_onelevel(mem_ctx, direct_parent,
 213                                            name_component, parent->token,
 214                                            SEC_RIGHTS_ENUM_SUBKEYS, &tmp);
 215                 SAFE_FREE(name_component);
 216
 217                 if (!W_ERROR_IS_OK(err)) {
 218                         goto error;
 219                 }
 220                 if (direct_parent != parent) {
 221                         TALLOC_FREE(direct_parent);
 222                 }
 223
 224                 direct_parent = tmp;
 225                 path = p+1;
 226         }
 227
 228         err = regkey_open_onelevel(mem_ctx, direct_parent, path, parent->token,
 229                                    desired_access, pkey);
 230  error:
 231         if (direct_parent != parent) {
 232                 TALLOC_FREE(direct_parent);
 233         }
 234         SAFE_FREE(to_free);
 235         return err;
 236 }
 237
 238 WERROR reg_enumkey(TALLOC_CTX *mem_ctx, struct registry_key *key,
 239                    uint32 idx, char **name, NTTIME *last_write_time)
 240 {
 241         WERROR err;
 242
 243         if (!(key->key->access_granted & SEC_RIGHTS_ENUM_SUBKEYS)) {
 244                 return WERR_ACCESS_DENIED;
 245         }
 246
 247         if (!W_ERROR_IS_OK(err = fill_subkey_cache(key))) {
 248                 return err;
 249         }
 250
 251         if (idx >= key->subkeys->num_subkeys) {
 252                 return WERR_NO_MORE_ITEMS;
 253         }
 254
 255         if (!(*name = talloc_strdup(mem_ctx, key->subkeys->subkeys[idx]))) {
 256                 return WERR_NOMEM;
 257         }
 258
 259         if (last_write_time) {
 260                 *last_write_time = 0;
 261         }
 262
 263         return WERR_OK;
 264 }
 265
 266 WERROR reg_enumvalue(TALLOC_CTX *mem_ctx, struct registry_key *key,
 267                      uint32 idx, char **pname, struct registry_value **pval)
 268 {
 269         struct registry_value *val;
 270         WERROR err;
 271
 272         if (!(key->key->access_granted & SEC_RIGHTS_QUERY_VALUE)) {
 273                 return WERR_ACCESS_DENIED;
 274         }
 275
 276         if (!(W_ERROR_IS_OK(err = fill_value_cache(key)))) {
 277                 return err;
 278         }
 279
 280         if (idx >= key->values->num_values) {
 281                 return WERR_NO_MORE_ITEMS;
 282         }
 283
 284         err = registry_pull_value(mem_ctx, &val,
 285                                   key->values->values[idx]->type,
 286                                   key->values->values[idx]->data_p,
 287                                   key->values->values[idx]->size,
 288                                   key->values->values[idx]->size);
 289         if (!W_ERROR_IS_OK(err)) {
 290                 return err;
 291         }
 292
 293         if (pname
 294             && !(*pname = talloc_strdup(
 295                          mem_ctx, key->values->values[idx]->valuename))) {
 296                 SAFE_FREE(val);
 297                 return WERR_NOMEM;
 298         }
 299
 300         *pval = val;
 301         return WERR_OK;
 302 }
 303
 304 WERROR reg_queryvalue(TALLOC_CTX *mem_ctx, struct registry_key *key,
 305                       const char *name, struct registry_value **pval)
 306 {
 307         WERROR err;
 308         uint32 i;
 309
 310         if (!(key->key->access_granted & SEC_RIGHTS_QUERY_VALUE)) {
 311                 return WERR_ACCESS_DENIED;
 312         }
 313
 314         if (!(W_ERROR_IS_OK(err = fill_value_cache(key)))) {
 315                 return err;
 316         }
 317
 318         for (i=0; i<key->values->num_values; i++) {
 319                 if (strequal(key->values->values[i]->valuename, name)) {
 320                         return reg_enumvalue(mem_ctx, key, i, NULL, pval);
 321                 }
 322         }
 323
 324         return WERR_BADFILE;
 325 }
 326
 327 WERROR reg_queryinfokey(struct registry_key *key, uint32_t *num_subkeys,
 328                         uint32_t *max_subkeylen, uint32_t *max_subkeysize,
 329                         uint32_t *num_values, uint32_t *max_valnamelen,
 330                         uint32_t *max_valbufsize, uint32_t *secdescsize,
 331                         NTTIME *last_changed_time)
 332 {
 333         uint32 i, max_size;
 334         size_t max_len;
 335         TALLOC_CTX *mem_ctx;
 336         WERROR err;
 337         struct security_descriptor *secdesc;
 338
 339         if (!(key->key->access_granted & SEC_RIGHTS_QUERY_VALUE)) {
 340                 return WERR_ACCESS_DENIED;
 341         }
 342
 343         if (!W_ERROR_IS_OK(fill_subkey_cache(key)) ||
 344             !W_ERROR_IS_OK(fill_value_cache(key))) {
 345                 return WERR_BADFILE;
 346         }
 347
 348         max_len = 0;
 349         for (i=0; i<key->subkeys->num_subkeys; i++) {
 350                 max_len = MAX(max_len, strlen(key->subkeys->subkeys[i]));
 351         }
 352
 353         *num_subkeys = key->subkeys->num_subkeys;
 354         *max_subkeylen = max_len;
 355         *max_subkeysize = 0;    /* Class length? */
 356
 357         max_len = 0;
 358         max_size = 0;
 359         for (i=0; i<key->values->num_values; i++) {
 360                 max_len = MAX(max_len,
 361                               strlen(key->values->values[i]->valuename));
 362                 max_size = MAX(max_size, key->values->values[i]->size);
 363         }
 364
 365         *num_values = key->values->num_values;
 366         *max_valnamelen = max_len;
 367         *max_valbufsize = max_size;
 368
 369         if (!(mem_ctx = talloc_new(key))) {
 370                 return WERR_NOMEM;
 371         }
 372
 373         err = regkey_get_secdesc(mem_ctx, key->key, &secdesc);
 374         if (!W_ERROR_IS_OK(err)) {
 375                 TALLOC_FREE(mem_ctx);
 376                 return err;
 377         }
 378
 379         *secdescsize = sec_desc_size(secdesc);
 380         TALLOC_FREE(mem_ctx);
 381
 382         *last_changed_time = 0;
 383
 384         return WERR_OK;
 385 }
 386
 387 WERROR reg_createkey(TALLOC_CTX *ctx, struct registry_key *parent,
 388                      const char *subkeypath, uint32 desired_access,
 389                      struct registry_key **pkey,
 390                      enum winreg_CreateAction *paction)
 391 {
 392         struct registry_key *key = parent;
 393         struct registry_key *create_parent;
 394         TALLOC_CTX *mem_ctx;
 395         char *path, *end;
 396         WERROR err;
 397         REGSUBKEY_CTR *subkeys;
 398
 399         if (!(mem_ctx = talloc_new(ctx))) return WERR_NOMEM;
 400
 401         if (!(path = talloc_strdup(mem_ctx, subkeypath))) {
 402                 err = WERR_NOMEM;
 403                 goto done;
 404         }
 405
 406         while ((end = strchr(path, '\\')) != NULL) {
 407                 struct registry_key *tmp;
 408                 enum winreg_CreateAction action;
 409
 410                 *end = '\0';
 411
 412                 err = reg_createkey(mem_ctx, key, path,
 413                                     SEC_RIGHTS_ENUM_SUBKEYS, &tmp, &action);
 414                 if (!W_ERROR_IS_OK(err)) {
 415                         goto done;
 416                 }
 417
 418                 if (key != parent) {
 419                         TALLOC_FREE(key);
 420                 }
 421
 422                 key = tmp;
 423                 path = end+1;
 424         }
 425
 426         /*
 427          * At this point, "path" contains the one-element subkey of "key". We
 428          * can try to open it.
 429          */
 430
 431         err = reg_openkey(ctx, key, path, desired_access, pkey);
 432         if (W_ERROR_IS_OK(err)) {
 433                 if (paction != NULL) {
 434                         *paction = REG_OPENED_EXISTING_KEY;
 435                 }
 436                 goto done;
 437         }
 438
 439         if (!W_ERROR_EQUAL(err, WERR_BADFILE)) {
 440                 /*
 441                  * Something but "notfound" has happened, so bail out
 442                  */
 443                 goto done;
 444         }
 445
 446         /*
 447          * We have to make a copy of the current key, as we opened it only
 448          * with ENUM_SUBKEY access.
 449          */
 450
 451         err = reg_openkey(mem_ctx, key, "", SEC_RIGHTS_CREATE_SUBKEY,
 452                           &create_parent);
 453         if (!W_ERROR_IS_OK(err)) {
 454                 goto done;
 455         }
 456
 457         /*
 458          * Actually create the subkey
 459          */
 460
 461         if (!(subkeys = TALLOC_ZERO_P(mem_ctx, REGSUBKEY_CTR))) {
 462                 err = WERR_NOMEM;
 463                 goto done;
 464         }
 465
 466         err = fill_subkey_cache(create_parent);
 467         if (!W_ERROR_IS_OK(err)) goto done;
 468
 469         err = regsubkey_ctr_addkey(create_parent->subkeys, path);
 470         if (!W_ERROR_IS_OK(err)) goto done;
 471
 472         if (!store_reg_keys(create_parent->key, create_parent->subkeys)) {
 473                 TALLOC_FREE(create_parent->subkeys);
 474                 err = WERR_REG_IO_FAILURE;
 475                 goto done;
 476         }
 477
 478         /*
 479          * Now open the newly created key
 480          */
 481
 482         err = reg_openkey(ctx, create_parent, path, desired_access, pkey);
 483         if (W_ERROR_IS_OK(err) && (paction != NULL)) {
 484                 *paction = REG_CREATED_NEW_KEY;
 485         }
 486
 487  done:
 488         TALLOC_FREE(mem_ctx);
 489         return err;
 490 }
 491
 492
 493 WERROR reg_deletekey(struct registry_key *parent, const char *path)
 494 {
 495         WERROR err;
 496         TALLOC_CTX *mem_ctx;
 497         char *name, *end;
 498         int num_subkeys;
 499         struct registry_key *tmp_key;
 500
 501         if (!(mem_ctx = talloc_init("reg_createkey"))) return WERR_NOMEM;
 502
 503         if (!(name = talloc_strdup(mem_ctx, path))) {
 504                 err = WERR_NOMEM;
 505                 goto error;
 506         }
 507
 508         /* check if the key has subkeys */
 509         err = reg_openkey(mem_ctx, parent, name, REG_KEY_READ, &tmp_key);
 510         if (!W_ERROR_IS_OK(err)) {
 511                 goto error;
 512         }
 513         if (!W_ERROR_IS_OK(err = fill_subkey_cache(tmp_key))) {
 514                 goto error;
 515         }
 516         if (tmp_key->subkeys->num_subkeys > 0) {
 517                 err = WERR_ACCESS_DENIED;
 518                 goto error;
 519         }
 520
 521         /* no subkeys - proceed with delete */
 522         if ((end = strrchr(name, '\\')) != NULL) {
 523                 *end = '\0';
 524
 525                 err = reg_openkey(mem_ctx, parent, name,
 526                                   SEC_RIGHTS_CREATE_SUBKEY, &tmp_key);
 527                 if (!W_ERROR_IS_OK(err)) {
 528                         goto error;
 529                 }
 530
 531                 parent = tmp_key;
 532                 name = end+1;
 533         }
 534
 535         if (name[0] == '\0') {
 536                 err = WERR_INVALID_PARAM;
 537                 goto error;
 538         }
 539
 540         if (!W_ERROR_IS_OK(err = fill_subkey_cache(parent))) {
 541                 goto error;
 542         }
 543
 544         num_subkeys = parent->subkeys->num_subkeys;
 545
 546         if (regsubkey_ctr_delkey(parent->subkeys, name) == num_subkeys) {
 547                 err = WERR_BADFILE;
 548                 goto error;
 549         }
 550
 551         if (!store_reg_keys(parent->key, parent->subkeys)) {
 552                 TALLOC_FREE(parent->subkeys);
 553                 err = WERR_REG_IO_FAILURE;
 554                 goto error;
 555         }
 556
 557         err = WERR_OK;
 558  error:
 559         TALLOC_FREE(mem_ctx);
 560         return err;
 561 }
 562
 563 WERROR reg_setvalue(struct registry_key *key, const char *name,
 564                     const struct registry_value *val)
 565 {
 566         WERROR err;
 567         DATA_BLOB value_data;
 568         int res;
 569
 570         if (!(key->key->access_granted & SEC_RIGHTS_SET_VALUE)) {
 571                 return WERR_ACCESS_DENIED;
 572         }
 573
 574         if (!W_ERROR_IS_OK(err = fill_value_cache(key))) {
 575                 return err;
 576         }
 577
 578         err = registry_push_value(key, val, &value_data);
 579         if (!W_ERROR_IS_OK(err)) {
 580                 return err;
 581         }
 582
 583         res = regval_ctr_addvalue(key->values, name, val->type,
 584                                   (char *)value_data.data, value_data.length);
 585         TALLOC_FREE(value_data.data);
 586
 587         if (res == 0) {
 588                 TALLOC_FREE(key->values);
 589                 return WERR_NOMEM;
 590         }
 591
 592         if (!store_reg_values(key->key, key->values)) {
 593                 TALLOC_FREE(key->values);
 594                 return WERR_REG_IO_FAILURE;
 595         }
 596
 597         return WERR_OK;
 598 }
 599
 600 WERROR reg_deletevalue(struct registry_key *key, const char *name)
 601 {
 602         WERROR err;
 603
 604         if (!(key->key->access_granted & SEC_RIGHTS_SET_VALUE)) {
 605                 return WERR_ACCESS_DENIED;
 606         }
 607
 608         if (!W_ERROR_IS_OK(err = fill_value_cache(key))) {
 609                 return err;
 610         }
 611
 612         regval_ctr_delvalue(key->values, name);
 613
 614         if (!store_reg_values(key->key, key->values)) {
 615                 TALLOC_FREE(key->values);
 616                 return WERR_REG_IO_FAILURE;
 617         }
 618
 619         return WERR_OK;
 620 }
 621
 622
 623 /*
 624  * Utility function to open a complete registry path including the hive
 625  * prefix. This should become the replacement function for
 626  * regkey_open_internal.
 627  */
 628
 629 WERROR reg_open_path(TALLOC_CTX *mem_ctx, const char *orig_path,
 630                      uint32 desired_access, const struct nt_user_token *token,
 631                      struct registry_key **pkey)
 632 {
 633         struct registry_key *hive, *key;
 634         char *path, *p;
 635         WERROR err;
 636
 637         if (!(path = SMB_STRDUP(orig_path))) {
 638                 return WERR_NOMEM;
 639         }
 640
 641         p = strchr(path, '\\');
 642
 643         if ((p == NULL) || (p[1] == '\0')) {
 644                 /*
 645                  * No key behind the hive, just return the hive
 646                  */
 647
 648                 err = reg_openhive(mem_ctx, path, desired_access, token,
 649                                    &hive);
 650                 if (!W_ERROR_IS_OK(err)) {
 651                         SAFE_FREE(path);
 652                         return err;
 653                 }
 654                 SAFE_FREE(path);
 655                 *pkey = hive;
 656                 return WERR_OK;
 657         }
 658
 659         *p = '\0';
 660
 661         err = reg_openhive(mem_ctx, path, SEC_RIGHTS_ENUM_SUBKEYS, token,
 662                            &hive);
 663         if (!W_ERROR_IS_OK(err)) {
 664                 SAFE_FREE(path);
 665                 return err;
 666         }
 667
 668         err = reg_openkey(mem_ctx, hive, p+1, desired_access, &key);
 669
 670         TALLOC_FREE(hive);
 671         SAFE_FREE(path);
 672
 673         if (!W_ERROR_IS_OK(err)) {
 674                 return err;
 675         }
 676
 677         *pkey = key;
 678         return WERR_OK;
 679 }
 680
 681
 682 /*
 683  * Utility function to delete a registry key with all its subkeys.
 684  * Note that reg_deletekey returns ACCESS_DENIED when called on a
 685  * key that has subkeys.
 686  */
 687 WERROR reg_deletekey_recursive(TALLOC_CTX *ctx,
 688                                struct registry_key *parent,
 689                                const char *path)
 690 {
 691         TALLOC_CTX *mem_ctx = NULL;
 692         WERROR werr = WERR_OK;
 693         struct registry_key *key;
 694         char *subkey_name = NULL;
 695
 696         mem_ctx = talloc_new(ctx);
 697         if (mem_ctx == NULL) {
 698                 werr = WERR_NOMEM;
 699                 goto done;
 700         }
 701
 702         /* recurse through subkeys first */
 703         werr = reg_openkey(mem_ctx, parent, path, REG_KEY_WRITE, &key);
 704         if (!W_ERROR_IS_OK(werr)) {
 705                 goto done;
 706         }
 707
 708         while (W_ERROR_IS_OK(werr = reg_enumkey(mem_ctx, key, 0,
 709                                                 &subkey_name, NULL)))
 710         {
 711                 werr = reg_deletekey_recursive(mem_ctx, key, subkey_name);
 712                 if (!W_ERROR_IS_OK(werr)) {
 713                         goto done;
 714                 }
 715         }
 716         if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) {
 717                 DEBUG(1, ("reg_deletekey_recursive: Error enumerating "
 718                           "subkeys: %s\n", dos_errstr(werr)));
 719                 goto done;
 720         }
 721
 722         /* now delete the actual key */
 723         werr = reg_deletekey(parent, path);
 724
 725 done:
 726         TALLOC_FREE(mem_ctx);
 727         return werr;
 728 }