source4/dsdb/common/util_samr.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Helpers to add users and groups to the DB
   5
   6    Copyright (C) Andrew Tridgell 2004
   7    Copyright (C) Volker Lendecke 2004
   8    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2010
   9    Copyright (C) Matthias Dieter Wallnöfer 2009
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "includes.h"
  26 #include "dsdb/samdb/samdb.h"
  27 #include "dsdb/common/util.h"
  28 #include "../libds/common/flags.h"
  29 #include "libcli/security/security.h"
  30
  31 #include "libds/common/flag_mapping.h"
  32
  33 /* Add a user, SAMR style, including the correct transaction
  34  * semantics.  Used by the SAMR server and by pdb_samba4 */
  35 NTSTATUS dsdb_add_user(struct ldb_context *ldb,
  36                        TALLOC_CTX *mem_ctx,
  37                        const char *account_name,
  38                        uint32_t acct_flags,
  39                        const struct dom_sid *forced_sid,
  40                        struct dom_sid **sid,
  41                        struct ldb_dn **dn)
  42 {
  43         const char *name;
  44         struct ldb_message *msg;
  45         int ret;
  46         const char *container, *obj_class=NULL;
  47         char *cn_name;
  48         size_t cn_name_len;
  49
  50         const char *attrs[] = {
  51                 "objectSid",
  52                 "userAccountControl",
  53                 NULL
  54         };
  55
  56         uint32_t user_account_control;
  57         struct ldb_dn *account_dn;
  58         struct dom_sid *account_sid;
  59
  60         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
  61         NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
  62
  63         /*
  64          * Start a transaction, so we can query and do a subsequent atomic
  65          * modify
  66          */
  67
  68         ret = ldb_transaction_start(ldb);
  69         if (ret != LDB_SUCCESS) {
  70                 DEBUG(0,("Failed to start a transaction for user creation: %s\n",
  71                          ldb_errstring(ldb)));
  72                 talloc_free(tmp_ctx);
  73                 return NT_STATUS_LOCK_NOT_GRANTED;
  74         }
  75
  76         /* check if the user already exists */
  77         name = samdb_search_string(ldb, tmp_ctx, NULL,
  78                                    "sAMAccountName",
  79                                    "(&(sAMAccountName=%s)(objectclass=user))",
  80                                    ldb_binary_encode_string(tmp_ctx, account_name));
  81         if (name != NULL) {
  82                 ldb_transaction_cancel(ldb);
  83                 talloc_free(tmp_ctx);
  84                 return NT_STATUS_USER_EXISTS;
  85         }
  86
  87         cn_name = talloc_strdup(tmp_ctx, account_name);
  88         if (!cn_name) {
  89                 ldb_transaction_cancel(ldb);
  90                 talloc_free(tmp_ctx);
  91                 return NT_STATUS_NO_MEMORY;
  92         }
  93
  94         cn_name_len = strlen(cn_name);
  95         if (cn_name_len < 1) {
  96                 ldb_transaction_cancel(ldb);
  97                 talloc_free(tmp_ctx);
  98                 return NT_STATUS_INVALID_PARAMETER;
  99         }
 100
 101         msg = ldb_msg_new(tmp_ctx);
 102         if (msg == NULL) {
 103                 ldb_transaction_cancel(ldb);
 104                 talloc_free(tmp_ctx);
 105                 return NT_STATUS_NO_MEMORY;
 106         }
 107
 108         /* This must be one of these values *only* */
 109         if (acct_flags == ACB_NORMAL) {
 110                 container = "CN=Users";
 111                 obj_class = "user";
 112
 113         } else if (acct_flags == ACB_WSTRUST) {
 114                 if (cn_name[cn_name_len - 1] != '$') {
 115                         ldb_transaction_cancel(ldb);
 116                         return NT_STATUS_FOOBAR;
 117                 }
 118                 cn_name[cn_name_len - 1] = '\0';
 119                 container = "CN=Computers";
 120                 obj_class = "computer";
 121
 122         } else if (acct_flags == ACB_SVRTRUST) {
 123                 if (cn_name[cn_name_len - 1] != '$') {
 124                         ldb_transaction_cancel(ldb);
 125                         return NT_STATUS_FOOBAR;
 126                 }
 127                 cn_name[cn_name_len - 1] = '\0';
 128                 container = "OU=Domain Controllers";
 129                 obj_class = "computer";
 130         } else if (acct_flags == ACB_DOMTRUST) {
 131                 DEBUG(3, ("Invalid account flags specified:  cannot create domain trusts via this interface (must use LSA CreateTrustedDomain calls\n"));
 132                 ldb_transaction_cancel(ldb);
 133                 talloc_free(tmp_ctx);
 134                 return NT_STATUS_INVALID_PARAMETER;
 135         } else {
 136                 DEBUG(3, ("Invalid account flags specified 0x%08X, must be exactly one of \n"
 137                           "ACB_NORMAL (0x%08X) ACB_WSTRUST (0x%08X) or ACB_SVRTRUST (0x%08X)\n",
 138                           acct_flags,
 139                           ACB_NORMAL, ACB_WSTRUST, ACB_SVRTRUST));
 140                 ldb_transaction_cancel(ldb);
 141                 talloc_free(tmp_ctx);
 142                 return NT_STATUS_INVALID_PARAMETER;
 143         }
 144
 145         /* add core elements to the ldb_message for the user */
 146         msg->dn = ldb_dn_copy(msg, ldb_get_default_basedn(ldb));
 147         if ( ! ldb_dn_add_child_fmt(msg->dn, "CN=%s,%s", cn_name, container)) {
 148                 ldb_transaction_cancel(ldb);
 149                 talloc_free(tmp_ctx);
 150                 return NT_STATUS_FOOBAR;
 151         }
 152
 153         ldb_msg_add_string(msg, "sAMAccountName", account_name);
 154         ldb_msg_add_string(msg, "objectClass", obj_class);
 155
 156         /* This is only here for migrations using pdb_samba4, the
 157          * caller and the samldb are responsible for ensuring it makes
 158          * sense */
 159         if (forced_sid) {
 160                 ret = samdb_msg_add_dom_sid(ldb, msg, msg, "objectSID", forced_sid);
 161                 if (ret != LDB_SUCCESS) {
 162                         ldb_transaction_cancel(ldb);
 163                         talloc_free(tmp_ctx);
 164                         return NT_STATUS_INTERNAL_ERROR;
 165                 }
 166         }
 167
 168         /* create the user */
 169         ret = ldb_add(ldb, msg);
 170         switch (ret) {
 171         case LDB_SUCCESS:
 172                 break;
 173         case LDB_ERR_ENTRY_ALREADY_EXISTS:
 174                 ldb_transaction_cancel(ldb);
 175                 DEBUG(0,("Failed to create user record %s: %s\n",
 176                          ldb_dn_get_linearized(msg->dn),
 177                          ldb_errstring(ldb)));
 178                 talloc_free(tmp_ctx);
 179                 return NT_STATUS_USER_EXISTS;
 180         case LDB_ERR_UNWILLING_TO_PERFORM:
 181         case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
 182                 ldb_transaction_cancel(ldb);
 183                 DEBUG(0,("Failed to create user record %s: %s\n",
 184                          ldb_dn_get_linearized(msg->dn),
 185                          ldb_errstring(ldb)));
 186                 talloc_free(tmp_ctx);
 187                 return NT_STATUS_ACCESS_DENIED;
 188         default:
 189                 ldb_transaction_cancel(ldb);
 190                 DEBUG(0,("Failed to create user record %s: %s\n",
 191                          ldb_dn_get_linearized(msg->dn),
 192                          ldb_errstring(ldb)));
 193                 talloc_free(tmp_ctx);
 194                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 195         }
 196
 197         account_dn = msg->dn;
 198
 199         /* retrieve the sid and account control bits for the user just created */
 200         ret = dsdb_search_one(ldb, tmp_ctx, &msg,
 201                               account_dn, LDB_SCOPE_BASE, attrs, 0, NULL);
 202
 203         if (ret != LDB_SUCCESS) {
 204                 ldb_transaction_cancel(ldb);
 205                 DEBUG(0,("Can't locate the account we just created %s: %s\n",
 206                          ldb_dn_get_linearized(account_dn), ldb_errstring(ldb)));
 207                 talloc_free(tmp_ctx);
 208                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 209         }
 210         account_sid = samdb_result_dom_sid(tmp_ctx, msg, "objectSid");
 211         if (account_sid == NULL) {
 212                 ldb_transaction_cancel(ldb);
 213                 DEBUG(0,("Apparently we failed to get the objectSid of the just created account record %s\n",
 214                          ldb_dn_get_linearized(msg->dn)));
 215                 talloc_free(tmp_ctx);
 216                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 217         }
 218
 219         /* Change the account control to be the correct account type.
 220          * The default is for a workstation account */
 221         user_account_control = ldb_msg_find_attr_as_uint(msg, "userAccountControl", 0);
 222         user_account_control = (user_account_control &
 223                                 ~(UF_NORMAL_ACCOUNT |
 224                                   UF_INTERDOMAIN_TRUST_ACCOUNT |
 225                                   UF_WORKSTATION_TRUST_ACCOUNT |
 226                                   UF_SERVER_TRUST_ACCOUNT));
 227         user_account_control |= ds_acb2uf(acct_flags);
 228
 229         talloc_free(msg);
 230         msg = ldb_msg_new(tmp_ctx);
 231         if (msg == NULL) {
 232                 ldb_transaction_cancel(ldb);
 233                 talloc_free(tmp_ctx);
 234                 return NT_STATUS_NO_MEMORY;
 235         }
 236
 237         msg->dn = account_dn;
 238
 239         if (samdb_msg_add_uint(ldb, tmp_ctx, msg,
 240                                "userAccountControl",
 241                                user_account_control) != LDB_SUCCESS) {
 242                 ldb_transaction_cancel(ldb);
 243                 talloc_free(tmp_ctx);
 244                 return NT_STATUS_NO_MEMORY;
 245         }
 246
 247         /* modify the samdb record */
 248         ret = dsdb_replace(ldb, msg, 0);
 249         if (ret != LDB_SUCCESS) {
 250                 DEBUG(0,("Failed to modify account record %s to set userAccountControl: %s\n",
 251                          ldb_dn_get_linearized(msg->dn),
 252                          ldb_errstring(ldb)));
 253                 ldb_transaction_cancel(ldb);
 254                 talloc_free(tmp_ctx);
 255
 256                 /* we really need samdb.c to return NTSTATUS */
 257                 return NT_STATUS_UNSUCCESSFUL;
 258         }
 259
 260         ret = ldb_transaction_commit(ldb);
 261         if (ret != LDB_SUCCESS) {
 262                 DEBUG(0,("Failed to commit transaction to add and modify account record %s: %s\n",
 263                          ldb_dn_get_linearized(msg->dn),
 264                          ldb_errstring(ldb)));
 265                 talloc_free(tmp_ctx);
 266                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 267         }
 268         *dn = talloc_steal(mem_ctx, account_dn);
 269         if (sid) {
 270                 *sid = talloc_steal(mem_ctx, account_sid);
 271         }
 272         talloc_free(tmp_ctx);
 273         return NT_STATUS_OK;
 274 }
 275
 276 /*
 277   called by samr_CreateDomainGroup and pdb_samba4
 278 */
 279 NTSTATUS dsdb_add_domain_group(struct ldb_context *ldb,
 280                                TALLOC_CTX *mem_ctx,
 281                                const char *groupname,
 282                                struct dom_sid **sid,
 283                                struct ldb_dn **dn)
 284 {
 285         const char *name;
 286         struct ldb_message *msg;
 287         struct dom_sid *group_sid;
 288         int ret;
 289
 290         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
 291         NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
 292
 293         /* check if the group already exists */
 294         name = samdb_search_string(ldb, tmp_ctx, NULL,
 295                                    "sAMAccountName",
 296                                    "(&(sAMAccountName=%s)(objectclass=group))",
 297                                    ldb_binary_encode_string(tmp_ctx, groupname));
 298         if (name != NULL) {
 299                 return NT_STATUS_GROUP_EXISTS;
 300         }
 301
 302         msg = ldb_msg_new(tmp_ctx);
 303         if (msg == NULL) {
 304                 return NT_STATUS_NO_MEMORY;
 305         }
 306
 307         /* add core elements to the ldb_message for the user */
 308         msg->dn = ldb_dn_copy(tmp_ctx, ldb_get_default_basedn(ldb));
 309         ldb_dn_add_child_fmt(msg->dn, "CN=%s,CN=Users", groupname);
 310         if (!msg->dn) {
 311                 talloc_free(tmp_ctx);
 312                 return NT_STATUS_NO_MEMORY;
 313         }
 314         ldb_msg_add_string(msg, "sAMAccountName", groupname);
 315         ldb_msg_add_string(msg, "objectClass", "group");
 316
 317         /* create the group */
 318         ret = ldb_add(ldb, msg);
 319         switch (ret) {
 320         case  LDB_SUCCESS:
 321                 break;
 322         case  LDB_ERR_ENTRY_ALREADY_EXISTS:
 323                 DEBUG(0,("Failed to create group record %s: %s\n",
 324                          ldb_dn_get_linearized(msg->dn),
 325                          ldb_errstring(ldb)));
 326                 talloc_free(tmp_ctx);
 327                 return NT_STATUS_GROUP_EXISTS;
 328         case  LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
 329                 DEBUG(0,("Failed to create group record %s: %s\n",
 330                          ldb_dn_get_linearized(msg->dn),
 331                          ldb_errstring(ldb)));
 332                 talloc_free(tmp_ctx);
 333                 return NT_STATUS_ACCESS_DENIED;
 334         default:
 335                 DEBUG(0,("Failed to create group record %s: %s\n",
 336                          ldb_dn_get_linearized(msg->dn),
 337                          ldb_errstring(ldb)));
 338                 talloc_free(tmp_ctx);
 339                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 340         }
 341
 342         /* retrieve the sid for the group just created */
 343         group_sid = samdb_search_dom_sid(ldb, tmp_ctx,
 344                                          msg->dn, "objectSid", NULL);
 345         if (group_sid == NULL) {
 346                 return NT_STATUS_UNSUCCESSFUL;
 347         }
 348
 349         *dn = talloc_steal(mem_ctx, msg->dn);
 350         *sid = talloc_steal(mem_ctx, group_sid);
 351         talloc_free(tmp_ctx);
 352         return NT_STATUS_OK;
 353 }
 354
 355 NTSTATUS dsdb_add_domain_alias(struct ldb_context *ldb,
 356                                TALLOC_CTX *mem_ctx,
 357                                const char *alias_name,
 358                                struct dom_sid **sid,
 359                                struct ldb_dn **dn)
 360 {
 361         const char *name;
 362         struct ldb_message *msg;
 363         struct dom_sid *alias_sid;
 364         int ret;
 365
 366         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
 367         NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
 368
 369         if (ldb_transaction_start(ldb) != LDB_SUCCESS) {
 370                 DEBUG(0, ("Failed to start transaction in dsdb_add_domain_alias(): %s\n", ldb_errstring(ldb)));
 371                 return NT_STATUS_INTERNAL_ERROR;
 372         }
 373
 374         /* Check if alias already exists */
 375         name = samdb_search_string(ldb, tmp_ctx, NULL,
 376                                    "sAMAccountName",
 377                                    "(sAMAccountName=%s)(objectclass=group))",
 378                                    ldb_binary_encode_string(mem_ctx, alias_name));
 379
 380         if (name != NULL) {
 381                 talloc_free(tmp_ctx);
 382                 ldb_transaction_cancel(ldb);
 383                 return NT_STATUS_ALIAS_EXISTS;
 384         }
 385
 386         msg = ldb_msg_new(tmp_ctx);
 387         if (msg == NULL) {
 388                 talloc_free(tmp_ctx);
 389                 ldb_transaction_cancel(ldb);
 390                 return NT_STATUS_NO_MEMORY;
 391         }
 392
 393         /* add core elements to the ldb_message for the alias */
 394         msg->dn = ldb_dn_copy(mem_ctx, ldb_get_default_basedn(ldb));
 395         ldb_dn_add_child_fmt(msg->dn, "CN=%s,CN=Users", alias_name);
 396         if (!msg->dn) {
 397                 talloc_free(tmp_ctx);
 398                 ldb_transaction_cancel(ldb);
 399                 return NT_STATUS_NO_MEMORY;
 400         }
 401
 402         ldb_msg_add_string(msg, "sAMAccountName", alias_name);
 403         ldb_msg_add_string(msg, "objectClass", "group");
 404         samdb_msg_add_int(ldb, mem_ctx, msg, "groupType", GTYPE_SECURITY_DOMAIN_LOCAL_GROUP);
 405
 406         /* create the alias */
 407         ret = ldb_add(ldb, msg);
 408         switch (ret) {
 409         case LDB_SUCCESS:
 410                 break;
 411         case LDB_ERR_ENTRY_ALREADY_EXISTS:
 412                 talloc_free(tmp_ctx);
 413                 ldb_transaction_cancel(ldb);
 414                 return NT_STATUS_ALIAS_EXISTS;
 415         case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
 416                 talloc_free(tmp_ctx);
 417                 ldb_transaction_cancel(ldb);
 418                 return NT_STATUS_ACCESS_DENIED;
 419         default:
 420                 DEBUG(0,("Failed to create alias record %s: %s\n",
 421                          ldb_dn_get_linearized(msg->dn),
 422                          ldb_errstring(ldb)));
 423                 talloc_free(tmp_ctx);
 424                 ldb_transaction_cancel(ldb);
 425                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 426         }
 427
 428         /* retrieve the sid for the alias just created */
 429         alias_sid = samdb_search_dom_sid(ldb, tmp_ctx,
 430                                          msg->dn, "objectSid", NULL);
 431
 432         if (ldb_transaction_commit(ldb) != LDB_SUCCESS) {
 433                 DEBUG(0, ("Failed to commit transaction in dsdb_add_domain_alias(): %s\n",
 434                           ldb_errstring(ldb)));
 435                 return NT_STATUS_INTERNAL_ERROR;
 436         }
 437
 438         *dn = talloc_steal(mem_ctx, msg->dn);
 439         *sid = talloc_steal(mem_ctx, alias_sid);
 440         talloc_free(tmp_ctx);
 441
 442
 443         return NT_STATUS_OK;
 444 }
 445
 446 /* Return the members of this group (which may be a domain group or an alias) */
 447 NTSTATUS dsdb_enum_group_mem(struct ldb_context *ldb,
 448                              TALLOC_CTX *mem_ctx,
 449                              struct ldb_dn *dn,
 450                              struct dom_sid **members_out,
 451                              unsigned int *pnum_members)
 452 {
 453         struct ldb_message *msg;
 454         unsigned int i, j;
 455         int ret;
 456         struct dom_sid *members;
 457         struct ldb_message_element *member_el;
 458         const char *attrs[] = { "member", NULL };
 459         NTSTATUS status;
 460         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
 461         NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
 462
 463         ret = dsdb_search_one(ldb, tmp_ctx, &msg, dn, LDB_SCOPE_BASE, attrs,
 464                               DSDB_SEARCH_SHOW_EXTENDED_DN, NULL);
 465         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
 466                 talloc_free(tmp_ctx);
 467                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
 468         }
 469         if (ret != LDB_SUCCESS) {
 470                 DEBUG(1, ("dsdb_enum_group_mem: dsdb_search for %s failed: %s\n",
 471                           ldb_dn_get_linearized(dn), ldb_errstring(ldb)));
 472                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 473         }
 474
 475         member_el = ldb_msg_find_element(msg, "member");
 476         if (!member_el) {
 477                 *members_out = NULL;
 478                 *pnum_members = 0;
 479                 talloc_free(tmp_ctx);
 480                 return NT_STATUS_OK;
 481         }
 482
 483         members = talloc_array(mem_ctx, struct dom_sid, member_el->num_values);
 484         if (members == NULL) {
 485                 return NT_STATUS_NO_MEMORY;
 486         }
 487
 488         j = 0;
 489         for (i=0; i <member_el->num_values; i++) {
 490                 struct ldb_dn *member_dn = ldb_dn_from_ldb_val(tmp_ctx, ldb,
 491                                                                &member_el->values[i]);
 492                 if (!member_dn || !ldb_dn_validate(member_dn)) {
 493                         DEBUG(1, ("Could not parse %*.*s as a DN\n",
 494                                   (int)member_el->values[i].length,
 495                                   (int)member_el->values[i].length,
 496                                   (const char *)member_el->values[i].data));
 497                         talloc_free(tmp_ctx);
 498                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 499                 }
 500
 501                 status = dsdb_get_extended_dn_sid(member_dn, &members[j],
 502                                                   "SID");
 503                 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 504                         /* If we fail finding a SID then this is no error since
 505                          * it could be a non SAM object - e.g. a contact */
 506                         continue;
 507                 } else if (!NT_STATUS_IS_OK(status)) {
 508                         DEBUG(1, ("When parsing DN '%s' we failed to parse it's SID component, so we cannot fetch the membership: %s\n",
 509                                   ldb_dn_get_extended_linearized(tmp_ctx, member_dn, 1),
 510                                   nt_errstr(status)));
 511                         talloc_free(tmp_ctx);
 512                         return status;
 513                 }
 514
 515                 ++j;
 516         }
 517
 518         *members_out = talloc_steal(mem_ctx, members);
 519         *pnum_members = j;
 520         talloc_free(tmp_ctx);
 521         return NT_STATUS_OK;
 522 }
 523
 524 NTSTATUS dsdb_lookup_rids(struct ldb_context *ldb,
 525                           TALLOC_CTX *mem_ctx,
 526                           const struct dom_sid *domain_sid,
 527                           unsigned int num_rids,
 528                           uint32_t *rids,
 529                           const char **names,
 530                           enum lsa_SidType *lsa_attrs)
 531 {
 532         const char *attrs[] = { "sAMAccountType", "sAMAccountName", NULL };
 533         unsigned int i, num_mapped;
 534
 535         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
 536         NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
 537
 538         num_mapped = 0;
 539
 540         for (i=0; i<num_rids; i++) {
 541                 struct ldb_message *msg;
 542                 struct ldb_dn *dn;
 543                 uint32_t attr;
 544                 int rc;
 545
 546                 lsa_attrs[i] = SID_NAME_UNKNOWN;
 547
 548                 dn = ldb_dn_new_fmt(tmp_ctx, ldb, "<SID=%s>",
 549                                     dom_sid_string(tmp_ctx,
 550                                                    dom_sid_add_rid(tmp_ctx, domain_sid,
 551                                                                    rids[i])));
 552                 if (dn == NULL) {
 553                         talloc_free(tmp_ctx);
 554                         return NT_STATUS_NO_MEMORY;
 555                 }
 556                 rc = dsdb_search_one(ldb, tmp_ctx, &msg, dn, LDB_SCOPE_BASE, attrs, 0, "samAccountName=*");
 557                 if (rc == LDB_ERR_NO_SUCH_OBJECT) {
 558                         continue;
 559                 } else if (rc != LDB_SUCCESS) {
 560                         talloc_free(tmp_ctx);
 561                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 562                 }
 563
 564                 names[i] = ldb_msg_find_attr_as_string(msg, "samAccountName", NULL);
 565                 if (names[i] == NULL) {
 566                         DEBUG(10, ("no samAccountName\n"));
 567                         continue;
 568                 }
 569                 talloc_steal(names, names[i]);
 570                 attr = ldb_msg_find_attr_as_uint(msg, "samAccountType", 0);
 571                 lsa_attrs[i] = ds_atype_map(attr);
 572                 if (lsa_attrs[i] == SID_NAME_UNKNOWN) {
 573                         continue;
 574                 }
 575                 num_mapped += 1;
 576         }
 577         talloc_free(tmp_ctx);
 578
 579         if (num_mapped == 0) {
 580                 return NT_STATUS_NONE_MAPPED;
 581         }
 582         if (num_mapped < num_rids) {
 583                 return STATUS_SOME_UNMAPPED;
 584         }
 585         return NT_STATUS_OK;
 586 }
 587