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         talloc_reference(out, schema);
 363
 364         partition_dn = ldb_dn_new(out, ldb, partition_dn_str);
 365         W_ERROR_HAVE_NO_MEMORY_AND_FREE(partition_dn, out);
 366
 367         status = dsdb_schema_pfm_from_drsuapi_pfm(mapping_ctr, true,
 368                                                   out, &pfm_remote, NULL);
 369         if (!W_ERROR_IS_OK(status)) {
 370                 DEBUG(0,(__location__ ": Failed to decode remote prefixMap: %s",
 371                          win_errstr(status)));
 372                 talloc_free(out);
 373                 return status;
 374         }
 375
 376         if (ldb_dn_compare(partition_dn, ldb_get_schema_basedn(ldb)) != 0) {
 377                 /*
 378                  * check for schema changes in case
 379                  * we are not replicating Schema NC
 380                  */
 381                 status = dsdb_schema_info_cmp(schema, mapping_ctr);
 382                 if (!W_ERROR_IS_OK(status)) {
 383                         DEBUG(1,("Remote schema has changed while replicating %s\n",
 384                                  partition_dn_str));
 385                         talloc_free(out);
 386                         return status;
 387                 }
 388         }
 389
 390         out->partition_dn       = partition_dn;
 391
 392         out->source_dsa         = source_dsa;
 393         out->uptodateness_vector= uptodateness_vector;
 394
 395         out->num_objects        = object_count;
 396         out->objects            = talloc_array(out,
 397                                                struct dsdb_extended_replicated_object,
 398                                                out->num_objects);
 399         W_ERROR_HAVE_NO_MEMORY_AND_FREE(out->objects, out);
 400
 401         /* pass the linked attributes down to the repl_meta_data
 402            module */
 403         out->linked_attributes_count = linked_attributes_count;
 404         out->linked_attributes       = linked_attributes;
 405
 406         for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
 407                 if (i == out->num_objects) {
 408                         talloc_free(out);
 409                         return WERR_FOOBAR;
 410                 }
 411
 412                 status = dsdb_convert_object_ex(ldb, schema, pfm_remote,
 413                                                 cur, gensec_skey,
 414                                                 out->objects, &out->objects[i]);
 415                 if (!W_ERROR_IS_OK(status)) {
 416                         talloc_free(out);
 417                         DEBUG(0,("Failed to convert object %s: %s\n",
 418                                  cur->object.identifier->dn,
 419                                  win_errstr(status)));
 420                         return status;
 421                 }
 422         }
 423         if (i != out->num_objects) {
 424                 talloc_free(out);
 425                 return WERR_FOOBAR;
 426         }
 427
 428         /* free pfm_remote, we won't need it anymore */
 429         talloc_free(pfm_remote);
 430
 431         *objects = out;
 432         return WERR_OK;
 433 }
 434
 435 WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
 436                                       struct dsdb_extended_replicated_objects *objects,
 437                                       uint64_t *notify_uSN)
 438 {
 439         struct ldb_result *ext_res;
 440         int ret;
 441         uint64_t seq_num1, seq_num2;
 442
 443         /* TODO: handle linked attributes */
 444
 445         /* wrap the extended operation in a transaction
 446            See [MS-DRSR] 3.3.2 Transactions
 447          */
 448         ret = ldb_transaction_start(ldb);
 449         if (ret != LDB_SUCCESS) {
 450                 DEBUG(0,(__location__ " Failed to start transaction\n"));
 451                 return WERR_FOOBAR;
 452         }
 453
 454         ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num1, NULL);
 455         if (ret != LDB_SUCCESS) {
 456                 DEBUG(0,(__location__ " Failed to load partition uSN\n"));
 457                 ldb_transaction_cancel(ldb);
 458                 return WERR_FOOBAR;
 459         }
 460
 461         ret = ldb_extended(ldb, DSDB_EXTENDED_REPLICATED_OBJECTS_OID, objects, &ext_res);
 462         if (ret != LDB_SUCCESS) {
 463                 DEBUG(0,("Failed to apply records: %s: %s\n",
 464                          ldb_errstring(ldb), ldb_strerror(ret)));
 465                 ldb_transaction_cancel(ldb);
 466                 return WERR_FOOBAR;
 467         }
 468         talloc_free(ext_res);
 469
 470         ret = ldb_transaction_prepare_commit(ldb);
 471         if (ret != LDB_SUCCESS) {
 472                 DEBUG(0,(__location__ " Failed to prepare commit of transaction: %s\n",
 473                          ldb_errstring(ldb)));
 474                 return WERR_FOOBAR;
 475         }
 476
 477         ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num2, NULL);
 478         if (ret != LDB_SUCCESS) {
 479                 DEBUG(0,(__location__ " Failed to load partition uSN\n"));
 480                 ldb_transaction_cancel(ldb);
 481                 return WERR_FOOBAR;
 482         }
 483
 484         /* if this replication partner didn't need to be notified
 485            before this transaction then it still doesn't need to be
 486            notified, as the changes came from this server */
 487         if (seq_num2 > seq_num1 && seq_num1 <= *notify_uSN) {
 488                 *notify_uSN = seq_num2;
 489         }
 490
 491         ret = ldb_transaction_commit(ldb);
 492         if (ret != LDB_SUCCESS) {
 493                 DEBUG(0,(__location__ " Failed to commit transaction\n"));
 494                 return WERR_FOOBAR;
 495         }
 496
 497
 498         DEBUG(2,("Replicated %u objects (%u linked attributes) for %s\n",
 499                  objects->num_objects, objects->linked_attributes_count,
 500                  ldb_dn_get_linearized(objects->partition_dn)));
 501
 502         return WERR_OK;
 503 }
 504
 505 static WERROR dsdb_origin_object_convert(struct ldb_context *ldb,
 506                                          const struct dsdb_schema *schema,
 507                                          const struct drsuapi_DsReplicaObjectListItem *in,
 508                                          TALLOC_CTX *mem_ctx,
 509                                          struct ldb_message **_msg)
 510 {
 511         WERROR status;
 512         unsigned int i;
 513         struct ldb_message *msg;
 514
 515         if (!in->object.identifier) {
 516                 return WERR_FOOBAR;
 517         }
 518
 519         if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
 520                 return WERR_FOOBAR;
 521         }
 522
 523         msg = ldb_msg_new(mem_ctx);
 524         W_ERROR_HAVE_NO_MEMORY(msg);
 525
 526         msg->dn = ldb_dn_new(msg, ldb, in->object.identifier->dn);
 527         W_ERROR_HAVE_NO_MEMORY(msg->dn);
 528
 529         msg->num_elements       = in->object.attribute_ctr.num_attributes;
 530         msg->elements           = talloc_array(msg, struct ldb_message_element,
 531                                                msg->num_elements);
 532         W_ERROR_HAVE_NO_MEMORY(msg->elements);
 533
 534         for (i=0; i < msg->num_elements; i++) {
 535                 struct drsuapi_DsReplicaAttribute *a;
 536                 struct ldb_message_element *e;
 537
 538                 a = &in->object.attribute_ctr.attributes[i];
 539                 e = &msg->elements[i];
 540
 541                 status = dsdb_attribute_drsuapi_to_ldb(ldb, schema, schema->prefixmap,
 542                                                        a, msg->elements, e);
 543                 W_ERROR_NOT_OK_RETURN(status);
 544         }
 545
 546
 547         *_msg = msg;
 548
 549         return WERR_OK;
 550 }
 551
 552 WERROR dsdb_origin_objects_commit(struct ldb_context *ldb,
 553                                   TALLOC_CTX *mem_ctx,
 554                                   const struct drsuapi_DsReplicaObjectListItem *first_object,
 555                                   uint32_t *_num,
 556                                   struct drsuapi_DsReplicaObjectIdentifier2 **_ids)
 557 {
 558         WERROR status;
 559         const struct dsdb_schema *schema;
 560         const struct drsuapi_DsReplicaObjectListItem *cur;
 561         struct ldb_message **objects;
 562         struct drsuapi_DsReplicaObjectIdentifier2 *ids;
 563         uint32_t i;
 564         uint32_t num_objects = 0;
 565         const char * const attrs[] = {
 566                 "objectGUID",
 567                 "objectSid",
 568                 NULL
 569         };
 570         struct ldb_result *res;
 571         int ret;
 572
 573         for (cur = first_object; cur; cur = cur->next_object) {
 574                 num_objects++;
 575         }
 576
 577         if (num_objects == 0) {
 578                 return WERR_OK;
 579         }
 580
 581         ret = ldb_transaction_start(ldb);
 582         if (ret != LDB_SUCCESS) {
 583                 return WERR_DS_INTERNAL_FAILURE;
 584         }
 585
 586         objects = talloc_array(mem_ctx, struct ldb_message *,
 587                                num_objects);
 588         if (objects == NULL) {
 589                 status = WERR_NOMEM;
 590                 goto cancel;
 591         }
 592
 593         schema = dsdb_get_schema(ldb, objects);
 594         if (!schema) {
 595                 return WERR_DS_SCHEMA_NOT_LOADED;
 596         }
 597
 598         for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
 599                 status = dsdb_origin_object_convert(ldb, schema, cur,
 600                                                     objects, &objects[i]);
 601                 if (!W_ERROR_IS_OK(status)) {
 602                         goto cancel;
 603                 }
 604         }
 605
 606         ids = talloc_array(mem_ctx,
 607                            struct drsuapi_DsReplicaObjectIdentifier2,
 608                            num_objects);
 609         if (ids == NULL) {
 610                 status = WERR_NOMEM;
 611                 goto cancel;
 612         }
 613
 614         for (i=0; i < num_objects; i++) {
 615                 struct dom_sid *sid = NULL;
 616                 struct ldb_request *add_req;
 617
 618                 DEBUG(6,(__location__ ": adding %s\n",
 619                          ldb_dn_get_linearized(objects[i]->dn)));
 620
 621                 ret = ldb_build_add_req(&add_req,
 622                                         ldb,
 623                                         objects,
 624                                         objects[i],
 625                                         NULL,
 626                                         NULL,
 627                                         ldb_op_default_callback,
 628                                         NULL);
 629                 if (ret != LDB_SUCCESS) {
 630                         status = WERR_DS_INTERNAL_FAILURE;
 631                         goto cancel;
 632                 }
 633
 634                 ret = ldb_request_add_control(add_req, LDB_CONTROL_RELAX_OID, true, NULL);
 635                 if (ret != LDB_SUCCESS) {
 636                         status = WERR_DS_INTERNAL_FAILURE;
 637                         goto cancel;
 638                 }
 639
 640                 ret = ldb_request(ldb, add_req);
 641                 if (ret == LDB_SUCCESS) {
 642                         ret = ldb_wait(add_req->handle, LDB_WAIT_ALL);
 643                 }
 644                 if (ret != LDB_SUCCESS) {
 645                         DEBUG(0,(__location__ ": Failed add of %s - %s\n",
 646                                  ldb_dn_get_linearized(objects[i]->dn), ldb_errstring(ldb)));
 647                         status = WERR_DS_INTERNAL_FAILURE;
 648                         goto cancel;
 649                 }
 650
 651                 talloc_free(add_req);
 652
 653                 ret = ldb_search(ldb, objects, &res, objects[i]->dn,
 654                                  LDB_SCOPE_BASE, attrs,
 655                                  "(objectClass=*)");
 656                 if (ret != LDB_SUCCESS) {
 657                         status = WERR_DS_INTERNAL_FAILURE;
 658                         goto cancel;
 659                 }
 660                 ids[i].guid = samdb_result_guid(res->msgs[0], "objectGUID");
 661                 sid = samdb_result_dom_sid(objects, res->msgs[0], "objectSid");
 662                 if (sid) {
 663                         ids[i].sid = *sid;
 664                 } else {
 665                         ZERO_STRUCT(ids[i].sid);
 666                 }
 667         }
 668
 669         ret = ldb_transaction_commit(ldb);
 670         if (ret != LDB_SUCCESS) {
 671                 return WERR_DS_INTERNAL_FAILURE;
 672         }
 673
 674         talloc_free(objects);
 675
 676         *_num = num_objects;
 677         *_ids = ids;
 678         return WERR_OK;
 679
 680 cancel:
 681         talloc_free(objects);
 682         ldb_transaction_cancel(ldb);
 683         return status;
 684 }