source4/dsdb/repl/replicated_objects.c

   1 /*
   2    Unix SMB/CIFS mplementation.
   3    Helper functions for applying replicated objects
   4
   5    Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
   6
   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.
  11
  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.
  16
  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/>.
  19
  20 */
  21
  22 #include "includes.h"
  23 #include "dsdb/samdb/samdb.h"
  24 #include "lib/ldb/include/ldb_errors.h"
  25 #include "../lib/util/dlinklist.h"
  26 #include "librpc/gen_ndr/ndr_misc.h"
  27 #include "librpc/gen_ndr/ndr_drsuapi.h"
  28 #include "librpc/gen_ndr/ndr_drsblobs.h"
  29 #include "../lib/crypto/crypto.h"
  30 #include "../libcli/drsuapi/drsuapi.h"
  31 #include "libcli/auth/libcli_auth.h"
  32 #include "param/param.h"
  33
  34 /**
  35  * Multi-pass working schema creation
  36  * Function will:
  37  *  - shallow copy initial schema supplied
  38  *  - create a working schema in multiple passes
  39  *    until all objects are resolved
  40  * Working schema is a schema with Attributes, Classes
  41  * and indexes, but w/o subClassOf, possibleSupperiors etc.
  42  * It is to be used just us cache for converting attribute values.
  43  */
  44 WERROR dsdb_repl_make_working_schema(struct ldb_context *ldb,
  45                                      const struct dsdb_schema *initial_schema,
  46                                      const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr,
  47                                      uint32_t object_count,
  48                                      const struct drsuapi_DsReplicaObjectListItemEx *first_object,
  49                                      const DATA_BLOB *gensec_skey,
  50                                      TALLOC_CTX *mem_ctx,
  51                                      struct dsdb_schema **_schema_out)
  52 {
  53         struct schema_list {
  54                 struct schema_list *next, *prev;
  55                 const struct drsuapi_DsReplicaObjectListItemEx *obj;
  56         };
  57
  58         WERROR werr;
  59         struct dsdb_schema_prefixmap *pfm_remote;
  60         struct schema_list *schema_list = NULL, *schema_list_item, *schema_list_next_item;
  61         struct dsdb_schema *working_schema;
  62         const struct drsuapi_DsReplicaObjectListItemEx *cur;
  63         int ret, pass_no;
  64
  65         /* make a copy of the iniatial_scheam so we don't mess with it */
  66         working_schema = dsdb_schema_copy_shallow(mem_ctx, ldb, initial_schema);
  67         if (!working_schema) {
  68                 DEBUG(0,(__location__ ": schema copy failed!\n"));
  69                 return WERR_NOMEM;
  70         }
  71
  72         /* we are going to need remote prefixMap for decoding */
  73         werr = dsdb_schema_pfm_from_drsuapi_pfm(mapping_ctr, true,
  74                                                 mem_ctx, &pfm_remote, NULL);
  75         if (!W_ERROR_IS_OK(werr)) {
  76                 DEBUG(0,(__location__ ": Failed to decode remote prefixMap: %s",
  77                          win_errstr(werr)));
  78                 return werr;
  79         }
  80
  81         /* create a list of objects yet to be converted */
  82         for (cur = first_object; cur; cur = cur->next_object) {
  83                 schema_list_item = talloc(mem_ctx, struct schema_list);
  84                 schema_list_item->obj = cur;
  85                 DLIST_ADD_END(schema_list, schema_list_item, struct schema_list);
  86         }
  87
  88         /* resolve objects until all are resolved and in local schema */
  89         pass_no = 1;
  90
  91         while (schema_list) {
  92                 uint32_t converted_obj_count = 0;
  93                 uint32_t failed_obj_count = 0;
  94                 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
  95                 W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
  96
  97                 for (schema_list_item = schema_list; schema_list_item; schema_list_item=schema_list_next_item) {
  98                         struct dsdb_extended_replicated_object object;
  99
 100                         cur = schema_list_item->obj;
 101
 102                         /* Save the next item, now we have saved out
 103                          * the current one, so we can DLIST_REMOVE it
 104                          * safely */
 105                         schema_list_next_item = schema_list_item->next;
 106
 107                         /*
 108                          * Convert the objects into LDB messages using the
 109                          * schema we have so far. It's ok if we fail to convert
 110                          * an object. We should convert more objects on next pass.
 111                          */
 112                         werr = dsdb_convert_object_ex(ldb, working_schema, pfm_remote,
 113                                                       cur, gensec_skey,
 114                                                       tmp_ctx, &object);
 115                         if (!W_ERROR_IS_OK(werr)) {
 116                                 DEBUG(1,("Warning: Failed to convert schema object %s into ldb msg\n",
 117                                          cur->object.identifier->dn));
 118
 119                                 failed_obj_count++;
 120                         } else {
 121                                 /*
 122                                  * Convert the schema from ldb_message format
 123                                  * (OIDs as OID strings) into schema, using
 124                                  * the remote prefixMap
 125                                  */
 126                                 werr = dsdb_schema_set_el_from_ldb_msg(ldb,
 127                                                                        working_schema,
 128                                                                        object.msg);
 129                                 if (!W_ERROR_IS_OK(werr)) {
 130                                         DEBUG(1,("Warning: failed to convert object %s into a schema element: %s\n",
 131                                                  ldb_dn_get_linearized(object.msg->dn),
 132                                                  win_errstr(werr)));
 133                                         failed_obj_count++;
 134                                 } else {
 135                                         DLIST_REMOVE(schema_list, schema_list_item);
 136                                         talloc_free(schema_list_item);
 137                                         converted_obj_count++;
 138                                 }
 139                         }
 140                 }
 141                 talloc_free(tmp_ctx);
 142
 143                 DEBUG(4,("Schema load pass %d: %d/%d of %d objects left to be converted.\n",
 144                          pass_no, failed_obj_count, converted_obj_count, object_count));
 145                 pass_no++;
 146
 147                 /* check if we converted any objects in this pass */
 148                 if (converted_obj_count == 0) {
 149                         DEBUG(0,("Can't continue Schema load: didn't manage to convert any objects: all %d remaining of %d objects failed to convert\n", failed_obj_count, object_count));
 150                         return WERR_INTERNAL_ERROR;
 151                 }
 152
 153                 /* rebuild indexes */
 154                 ret = dsdb_setup_sorted_accessors(ldb, working_schema);
 155                 if (LDB_SUCCESS != ret) {
 156                         DEBUG(0,("Failed to create schema-cache indexes!\n"));
 157                         return WERR_INTERNAL_ERROR;
 158                 }
 159         };
 160
 161         *_schema_out = working_schema;
 162
 163         return WERR_OK;
 164 }
 165
 166 WERROR dsdb_convert_object_ex(struct ldb_context *ldb,
 167                               const struct dsdb_schema *schema,
 168                               const struct dsdb_schema_prefixmap *pfm_remote,
 169                               const struct drsuapi_DsReplicaObjectListItemEx *in,
 170                               const DATA_BLOB *gensec_skey,
 171                               TALLOC_CTX *mem_ctx,
 172                               struct dsdb_extended_replicated_object *out)
 173 {
 174         NTSTATUS nt_status;
 175         WERROR status;
 176         uint32_t i;
 177         struct ldb_message *msg;
 178         struct replPropertyMetaDataBlob *md;
 179         struct ldb_val guid_value;
 180         NTTIME whenChanged = 0;
 181         time_t whenChanged_t;
 182         const char *whenChanged_s;
 183         const char *rdn_name = NULL;
 184         const struct ldb_val *rdn_value = NULL;
 185         const struct dsdb_attribute *rdn_attr = NULL;
 186         uint32_t rdn_attid;
 187         struct drsuapi_DsReplicaAttribute *name_a = NULL;
 188         struct drsuapi_DsReplicaMetaData *name_d = NULL;
 189         struct replPropertyMetaData1 *rdn_m = NULL;
 190         struct dom_sid *sid = NULL;
 191         uint32_t rid = 0;
 192         int ret;
 193
 194         if (!in->object.identifier) {
 195                 return WERR_FOOBAR;
 196         }
 197
 198         if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
 199                 return WERR_FOOBAR;
 200         }
 201
 202         if (in->object.attribute_ctr.num_attributes != 0 && !in->meta_data_ctr) {
 203                 return WERR_FOOBAR;
 204         }
 205
 206         if (in->object.attribute_ctr.num_attributes != in->meta_data_ctr->count) {
 207                 return WERR_FOOBAR;
 208         }
 209
 210         sid = &in->object.identifier->sid;
 211         if (sid->num_auths > 0) {
 212                 rid = sid->sub_auths[sid->num_auths - 1];
 213         }
 214
 215         msg = ldb_msg_new(mem_ctx);
 216         W_ERROR_HAVE_NO_MEMORY(msg);
 217
 218         msg->dn                 = ldb_dn_new(msg, ldb, in->object.identifier->dn);
 219         W_ERROR_HAVE_NO_MEMORY(msg->dn);
 220
 221         rdn_name        = ldb_dn_get_rdn_name(msg->dn);
 222         rdn_attr        = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
 223         if (!rdn_attr) {
 224                 return WERR_FOOBAR;
 225         }
 226         rdn_attid       = rdn_attr->attributeID_id;
 227         rdn_value       = ldb_dn_get_rdn_val(msg->dn);
 228
 229         msg->num_elements       = in->object.attribute_ctr.num_attributes;
 230         msg->elements           = talloc_array(msg, struct ldb_message_element,
 231                                                msg->num_elements);
 232         W_ERROR_HAVE_NO_MEMORY(msg->elements);
 233
 234         md = talloc(mem_ctx, struct replPropertyMetaDataBlob);
 235         W_ERROR_HAVE_NO_MEMORY(md);
 236
 237         md->version             = 1;
 238         md->reserved            = 0;
 239         md->ctr.ctr1.count      = in->meta_data_ctr->count;
 240         md->ctr.ctr1.reserved   = 0;
 241         md->ctr.ctr1.array      = talloc_array(mem_ctx,
 242                                                struct replPropertyMetaData1,
 243                                                md->ctr.ctr1.count + 1); /* +1 because of the RDN attribute */
 244         W_ERROR_HAVE_NO_MEMORY(md->ctr.ctr1.array);
 245
 246         for (i=0; i < in->meta_data_ctr->count; i++) {
 247                 struct drsuapi_DsReplicaAttribute *a;
 248                 struct drsuapi_DsReplicaMetaData *d;
 249                 struct replPropertyMetaData1 *m;
 250                 struct ldb_message_element *e;
 251                 uint32_t j;
 252
 253                 a = &in->object.attribute_ctr.attributes[i];
 254                 d = &in->meta_data_ctr->meta_data[i];
 255                 m = &md->ctr.ctr1.array[i];
 256                 e = &msg->elements[i];
 257
 258                 for (j=0; j<a->value_ctr.num_values; j++) {
 259                         status = drsuapi_decrypt_attribute(a->value_ctr.values[j].blob, gensec_skey, rid, a);
 260                         W_ERROR_NOT_OK_RETURN(status);
 261                 }
 262
 263                 status = dsdb_attribute_drsuapi_to_ldb(ldb, schema, pfm_remote,
 264                                                        a, msg->elements, e);
 265                 W_ERROR_NOT_OK_RETURN(status);
 266
 267                 m->attid                        = a->attid;
 268                 m->version                      = d->version;
 269                 m->originating_change_time      = d->originating_change_time;
 270                 m->originating_invocation_id    = d->originating_invocation_id;
 271                 m->originating_usn              = d->originating_usn;
 272                 m->local_usn                    = 0;
 273
 274                 if (d->originating_change_time > whenChanged) {
 275                         whenChanged = d->originating_change_time;
 276                 }
 277
 278                 if (a->attid == DRSUAPI_ATTID_name) {
 279                         name_a = a;
 280                         name_d = d;
 281                         rdn_m = &md->ctr.ctr1.array[md->ctr.ctr1.count];
 282                 }
 283         }
 284
 285         if (rdn_m) {
 286                 struct ldb_message_element *el;
 287                 el = ldb_msg_find_element(msg, rdn_attr->lDAPDisplayName);
 288                 if (!el) {
 289                         ret = ldb_msg_add_value(msg, rdn_attr->lDAPDisplayName, rdn_value, NULL);
 290                         if (ret != LDB_SUCCESS) {
 291                                 return WERR_FOOBAR;
 292                         }
 293                 } else {
 294                         if (el->num_values != 1) {
 295                                 DEBUG(0,(__location__ ": Unexpected num_values=%u\n",
 296                                          el->num_values));
 297                                 return WERR_FOOBAR;
 298                         }
 299                         if (!ldb_val_equal_exact(&el->values[0], rdn_value)) {
 300                                 DEBUG(0,(__location__ ": RDN value changed? '%*.*s' '%*.*s'\n",
 301                                          (int)el->values[0].length, (int)el->values[0].length, el->values[0].data,
 302                                          (int)rdn_value->length, (int)rdn_value->length, rdn_value->data));
 303                                 return WERR_FOOBAR;
 304                         }
 305                 }
 306
 307                 rdn_m->attid                            = rdn_attid;
 308                 rdn_m->version                          = name_d->version;
 309                 rdn_m->originating_change_time          = name_d->originating_change_time;
 310                 rdn_m->originating_invocation_id        = name_d->originating_invocation_id;
 311                 rdn_m->originating_usn                  = name_d->originating_usn;
 312                 rdn_m->local_usn                        = 0;
 313                 md->ctr.ctr1.count++;
 314
 315         }
 316
 317         whenChanged_t = nt_time_to_unix(whenChanged);
 318         whenChanged_s = ldb_timestring(msg, whenChanged_t);
 319         W_ERROR_HAVE_NO_MEMORY(whenChanged_s);
 320
 321         nt_status = GUID_to_ndr_blob(&in->object.identifier->guid, msg, &guid_value);
 322         if (!NT_STATUS_IS_OK(nt_status)) {
 323                 return ntstatus_to_werror(nt_status);
 324         }
 325
 326         out->msg                = msg;
 327         out->guid_value         = guid_value;
 328         out->when_changed       = whenChanged_s;
 329         out->meta_data          = md;
 330         return WERR_OK;
 331 }
 332
 333 WERROR dsdb_replicated_objects_convert(struct ldb_context *ldb,
 334                                        const struct dsdb_schema *schema,
 335                                        const char *partition_dn_str,
 336                                        const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr,
 337                                        uint32_t object_count,
 338                                        const struct drsuapi_DsReplicaObjectListItemEx *first_object,
 339                                        uint32_t linked_attributes_count,
 340                                        const struct drsuapi_DsReplicaLinkedAttribute *linked_attributes,
 341                                        const struct repsFromTo1 *source_dsa,
 342                                        const struct drsuapi_DsReplicaCursor2CtrEx *uptodateness_vector,
 343                                        const DATA_BLOB *gensec_skey,
 344                                        TALLOC_CTX *mem_ctx,
 345                                        struct dsdb_extended_replicated_objects **objects)
 346 {
 347         WERROR status;
 348         struct ldb_dn *partition_dn;
 349         struct dsdb_schema_prefixmap *pfm_remote;
 350         struct dsdb_extended_replicated_objects *out;
 351         const struct drsuapi_DsReplicaObjectListItemEx *cur;
 352         uint32_t i;
 353
 354         out = talloc_zero(mem_ctx, struct dsdb_extended_replicated_objects);
 355         W_ERROR_HAVE_NO_MEMORY(out);
 356         out->version            = DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION;
 357
 358         /*
 359          * Ensure schema is kept valid for as long as 'out'
 360          * which may contain pointers to it
 361          */
 362         schema = talloc_reference(out, schema);
 363         W_ERROR_HAVE_NO_MEMORY(schema);
 364
 365         partition_dn = ldb_dn_new(out, ldb, partition_dn_str);
 366         W_ERROR_HAVE_NO_MEMORY_AND_FREE(partition_dn, out);
 367
 368         status = dsdb_schema_pfm_from_drsuapi_pfm(mapping_ctr, true,
 369                                                   out, &pfm_remote, NULL);
 370         if (!W_ERROR_IS_OK(status)) {
 371                 DEBUG(0,(__location__ ": Failed to decode remote prefixMap: %s",
 372                          win_errstr(status)));
 373                 talloc_free(out);
 374                 return status;
 375         }
 376
 377         if (ldb_dn_compare(partition_dn, ldb_get_schema_basedn(ldb)) != 0) {
 378                 /*
 379                  * check for schema changes in case
 380                  * we are not replicating Schema NC
 381                  */
 382                 status = dsdb_schema_info_cmp(schema, mapping_ctr);
 383                 if (!W_ERROR_IS_OK(status)) {
 384                         DEBUG(1,("Remote schema has changed while replicating %s\n",
 385                                  partition_dn_str));
 386                         talloc_free(out);
 387                         return status;
 388                 }
 389         }
 390
 391         out->partition_dn       = partition_dn;
 392
 393         out->source_dsa         = source_dsa;
 394         out->uptodateness_vector= uptodateness_vector;
 395
 396         out->num_objects        = object_count;
 397         out->objects            = talloc_array(out,
 398                                                struct dsdb_extended_replicated_object,
 399                                                out->num_objects);
 400         W_ERROR_HAVE_NO_MEMORY_AND_FREE(out->objects, out);
 401
 402         /* pass the linked attributes down to the repl_meta_data
 403            module */
 404         out->linked_attributes_count = linked_attributes_count;
 405         out->linked_attributes       = linked_attributes;
 406
 407         for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
 408                 if (i == out->num_objects) {
 409                         talloc_free(out);
 410                         return WERR_FOOBAR;
 411                 }
 412
 413                 status = dsdb_convert_object_ex(ldb, schema, pfm_remote,
 414                                                 cur, gensec_skey,
 415                                                 out->objects, &out->objects[i]);
 416                 if (!W_ERROR_IS_OK(status)) {
 417                         talloc_free(out);
 418                         DEBUG(0,("Failed to convert object %s: %s\n",
 419                                  cur->object.identifier->dn,
 420                                  win_errstr(status)));
 421                         return status;
 422                 }
 423         }
 424         if (i != out->num_objects) {
 425                 talloc_free(out);
 426                 return WERR_FOOBAR;
 427         }
 428
 429         /* free pfm_remote, we won't need it anymore */
 430         talloc_free(pfm_remote);
 431
 432         *objects = out;
 433         return WERR_OK;
 434 }
 435
 436 WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
 437                                       struct dsdb_extended_replicated_objects *objects,
 438                                       uint64_t *notify_uSN)
 439 {
 440         struct ldb_result *ext_res;
 441         int ret;
 442         uint64_t seq_num1, seq_num2;
 443
 444         /* TODO: handle linked attributes */
 445
 446         /* wrap the extended operation in a transaction
 447            See [MS-DRSR] 3.3.2 Transactions
 448          */
 449         ret = ldb_transaction_start(ldb);
 450         if (ret != LDB_SUCCESS) {
 451                 DEBUG(0,(__location__ " Failed to start transaction\n"));
 452                 return WERR_FOOBAR;
 453         }
 454
 455         ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num1, NULL);
 456         if (ret != LDB_SUCCESS) {
 457                 DEBUG(0,(__location__ " Failed to load partition uSN\n"));
 458                 ldb_transaction_cancel(ldb);
 459                 return WERR_FOOBAR;
 460         }
 461
 462         ret = ldb_extended(ldb, DSDB_EXTENDED_REPLICATED_OBJECTS_OID, objects, &ext_res);
 463         if (ret != LDB_SUCCESS) {
 464                 DEBUG(0,("Failed to apply records: %s: %s\n",
 465                          ldb_errstring(ldb), ldb_strerror(ret)));
 466                 ldb_transaction_cancel(ldb);
 467                 return WERR_FOOBAR;
 468         }
 469         talloc_free(ext_res);
 470
 471         ret = ldb_transaction_prepare_commit(ldb);
 472         if (ret != LDB_SUCCESS) {
 473                 DEBUG(0,(__location__ " Failed to prepare commit of transaction: %s\n",
 474                          ldb_errstring(ldb)));
 475                 return WERR_FOOBAR;
 476         }
 477
 478         ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num2, NULL);
 479         if (ret != LDB_SUCCESS) {
 480                 DEBUG(0,(__location__ " Failed to load partition uSN\n"));
 481                 ldb_transaction_cancel(ldb);
 482                 return WERR_FOOBAR;
 483         }
 484
 485         /* if this replication partner didn't need to be notified
 486            before this transaction then it still doesn't need to be
 487            notified, as the changes came from this server */
 488         if (seq_num2 > seq_num1 && seq_num1 <= *notify_uSN) {
 489                 *notify_uSN = seq_num2;
 490         }
 491
 492         ret = ldb_transaction_commit(ldb);
 493         if (ret != LDB_SUCCESS) {
 494                 DEBUG(0,(__location__ " Failed to commit transaction\n"));
 495                 return WERR_FOOBAR;
 496         }
 497
 498
 499         DEBUG(2,("Replicated %u objects (%u linked attributes) for %s\n",
 500                  objects->num_objects, objects->linked_attributes_count,
 501                  ldb_dn_get_linearized(objects->partition_dn)));
 502
 503         return WERR_OK;
 504 }
 505
 506 static WERROR dsdb_origin_object_convert(struct ldb_context *ldb,
 507                                          const struct dsdb_schema *schema,
 508                                          const struct drsuapi_DsReplicaObjectListItem *in,
 509                                          TALLOC_CTX *mem_ctx,
 510                                          struct ldb_message **_msg)
 511 {
 512         WERROR status;
 513         unsigned int i;
 514         struct ldb_message *msg;
 515
 516         if (!in->object.identifier) {
 517                 return WERR_FOOBAR;
 518         }
 519
 520         if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
 521                 return WERR_FOOBAR;
 522         }
 523
 524         msg = ldb_msg_new(mem_ctx);
 525         W_ERROR_HAVE_NO_MEMORY(msg);
 526
 527         msg->dn = ldb_dn_new(msg, ldb, in->object.identifier->dn);
 528         W_ERROR_HAVE_NO_MEMORY(msg->dn);
 529
 530         msg->num_elements       = in->object.attribute_ctr.num_attributes;
 531         msg->elements           = talloc_array(msg, struct ldb_message_element,
 532                                                msg->num_elements);
 533         W_ERROR_HAVE_NO_MEMORY(msg->elements);
 534
 535         for (i=0; i < msg->num_elements; i++) {
 536                 struct drsuapi_DsReplicaAttribute *a;
 537                 struct ldb_message_element *e;
 538
 539                 a = &in->object.attribute_ctr.attributes[i];
 540                 e = &msg->elements[i];
 541
 542                 status = dsdb_attribute_drsuapi_to_ldb(ldb, schema, schema->prefixmap,
 543                                                        a, msg->elements, e);
 544                 W_ERROR_NOT_OK_RETURN(status);
 545         }
 546
 547
 548         *_msg = msg;
 549
 550         return WERR_OK;
 551 }
 552
 553 WERROR dsdb_origin_objects_commit(struct ldb_context *ldb,
 554                                   TALLOC_CTX *mem_ctx,
 555                                   const struct drsuapi_DsReplicaObjectListItem *first_object,
 556                                   uint32_t *_num,
 557                                   struct drsuapi_DsReplicaObjectIdentifier2 **_ids)
 558 {
 559         WERROR status;
 560         const struct dsdb_schema *schema;
 561         const struct drsuapi_DsReplicaObjectListItem *cur;
 562         struct ldb_message **objects;
 563         struct drsuapi_DsReplicaObjectIdentifier2 *ids;
 564         uint32_t i;
 565         uint32_t num_objects = 0;
 566         const char * const attrs[] = {
 567                 "objectGUID",
 568                 "objectSid",
 569                 NULL
 570         };
 571         struct ldb_result *res;
 572         int ret;
 573
 574         for (cur = first_object; cur; cur = cur->next_object) {
 575                 num_objects++;
 576         }
 577
 578         if (num_objects == 0) {
 579                 return WERR_OK;
 580         }
 581
 582         ret = ldb_transaction_start(ldb);
 583         if (ret != LDB_SUCCESS) {
 584                 return WERR_DS_INTERNAL_FAILURE;
 585         }
 586
 587         objects = talloc_array(mem_ctx, struct ldb_message *,
 588                                num_objects);
 589         if (objects == NULL) {
 590                 status = WERR_NOMEM;
 591                 goto cancel;
 592         }
 593
 594         schema = dsdb_get_schema(ldb, objects);
 595         if (!schema) {
 596                 return WERR_DS_SCHEMA_NOT_LOADED;
 597         }
 598
 599         for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
 600                 status = dsdb_origin_object_convert(ldb, schema, cur,
 601                                                     objects, &objects[i]);
 602                 if (!W_ERROR_IS_OK(status)) {
 603                         goto cancel;
 604                 }
 605         }
 606
 607         ids = talloc_array(mem_ctx,
 608                            struct drsuapi_DsReplicaObjectIdentifier2,
 609                            num_objects);
 610         if (ids == NULL) {
 611                 status = WERR_NOMEM;
 612                 goto cancel;
 613         }
 614
 615         for (i=0; i < num_objects; i++) {
 616                 struct dom_sid *sid = NULL;
 617                 struct ldb_request *add_req;
 618
 619                 DEBUG(6,(__location__ ": adding %s\n",
 620                          ldb_dn_get_linearized(objects[i]->dn)));
 621
 622                 ret = ldb_build_add_req(&add_req,
 623                                         ldb,
 624                                         objects,
 625                                         objects[i],
 626                                         NULL,
 627                                         NULL,
 628                                         ldb_op_default_callback,
 629                                         NULL);
 630                 if (ret != LDB_SUCCESS) {
 631                         status = WERR_DS_INTERNAL_FAILURE;
 632                         goto cancel;
 633                 }
 634
 635                 ret = ldb_request_add_control(add_req, LDB_CONTROL_RELAX_OID, true, NULL);
 636                 if (ret != LDB_SUCCESS) {
 637                         status = WERR_DS_INTERNAL_FAILURE;
 638                         goto cancel;
 639                 }
 640
 641                 ret = ldb_request(ldb, add_req);
 642                 if (ret == LDB_SUCCESS) {
 643                         ret = ldb_wait(add_req->handle, LDB_WAIT_ALL);
 644                 }
 645                 if (ret != LDB_SUCCESS) {
 646                         DEBUG(0,(__location__ ": Failed add of %s - %s\n",
 647                                  ldb_dn_get_linearized(objects[i]->dn), ldb_errstring(ldb)));
 648                         status = WERR_DS_INTERNAL_FAILURE;
 649                         goto cancel;
 650                 }
 651
 652                 talloc_free(add_req);
 653
 654                 ret = ldb_search(ldb, objects, &res, objects[i]->dn,
 655                                  LDB_SCOPE_BASE, attrs,
 656                                  "(objectClass=*)");
 657                 if (ret != LDB_SUCCESS) {
 658                         status = WERR_DS_INTERNAL_FAILURE;
 659                         goto cancel;
 660                 }
 661                 ids[i].guid = samdb_result_guid(res->msgs[0], "objectGUID");
 662                 sid = samdb_result_dom_sid(objects, res->msgs[0], "objectSid");
 663                 if (sid) {
 664                         ids[i].sid = *sid;
 665                 } else {
 666                         ZERO_STRUCT(ids[i].sid);
 667                 }
 668         }
 669
 670         ret = ldb_transaction_commit(ldb);
 671         if (ret != LDB_SUCCESS) {
 672                 return WERR_DS_INTERNAL_FAILURE;
 673         }
 674
 675         talloc_free(objects);
 676
 677         *_num = num_objects;
 678         *_ids = ids;
 679         return WERR_OK;
 680
 681 cancel:
 682         talloc_free(objects);
 683         ldb_transaction_cancel(ldb);
 684         return status;
 685 }