source3/libnet/libnet_dssync.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Stefan (metze) Metzmacher 2005
   5    Copyright (C) Guenther Deschner 2008
   6    Copyright (C) Michael Adam 2008
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22
  23 #include "includes.h"
  24 #include "libnet/libnet_dssync.h"
  25 #include "rpc_client/cli_pipe.h"
  26 #include "../libcli/drsuapi/drsuapi.h"
  27 #include "../librpc/gen_ndr/ndr_drsuapi_c.h"
  28
  29 /****************************************************************
  30 ****************************************************************/
  31
  32 static int libnet_dssync_free_context(struct dssync_context *ctx)
  33 {
  34         WERROR result;
  35         struct dcerpc_binding_handle *b;
  36
  37         if (!ctx) {
  38                 return 0;
  39         }
  40
  41         if (is_valid_policy_hnd(&ctx->bind_handle) && ctx->cli) {
  42                 b = ctx->cli->binding_handle;
  43                 dcerpc_drsuapi_DsUnbind(b, ctx, &ctx->bind_handle, &result);
  44         }
  45
  46         return 0;
  47 }
  48
  49 /****************************************************************
  50 ****************************************************************/
  51
  52 NTSTATUS libnet_dssync_init_context(TALLOC_CTX *mem_ctx,
  53                                     struct dssync_context **ctx_p)
  54 {
  55         struct dssync_context *ctx;
  56
  57         ctx = TALLOC_ZERO_P(mem_ctx, struct dssync_context);
  58         NT_STATUS_HAVE_NO_MEMORY(ctx);
  59
  60         talloc_set_destructor(ctx, libnet_dssync_free_context);
  61         ctx->clean_old_entries = false;
  62
  63         *ctx_p = ctx;
  64
  65         return NT_STATUS_OK;
  66 }
  67
  68 /****************************************************************
  69 ****************************************************************/
  70
  71 static void parse_obj_identifier(struct drsuapi_DsReplicaObjectIdentifier *id,
  72                                  uint32_t *rid)
  73 {
  74         if (!id || !rid) {
  75                 return;
  76         }
  77
  78         *rid = 0;
  79
  80         if (id->sid.num_auths > 0) {
  81                 *rid = id->sid.sub_auths[id->sid.num_auths - 1];
  82         }
  83 }
  84
  85 /****************************************************************
  86 ****************************************************************/
  87
  88 static void libnet_dssync_decrypt_attributes(TALLOC_CTX *mem_ctx,
  89                                              DATA_BLOB *session_key,
  90                                              struct drsuapi_DsReplicaObjectListItemEx *cur)
  91 {
  92         for (; cur; cur = cur->next_object) {
  93
  94                 uint32_t i;
  95                 uint32_t rid = 0;
  96
  97                 parse_obj_identifier(cur->object.identifier, &rid);
  98
  99                 for (i=0; i < cur->object.attribute_ctr.num_attributes; i++) {
 100
 101                         struct drsuapi_DsReplicaAttribute *attr;
 102
 103                         attr = &cur->object.attribute_ctr.attributes[i];
 104
 105                         if (attr->value_ctr.num_values < 1) {
 106                                 continue;
 107                         }
 108
 109                         if (!attr->value_ctr.values[0].blob) {
 110                                 continue;
 111                         }
 112
 113                         drsuapi_decrypt_attribute(mem_ctx,
 114                                                   session_key,
 115                                                   rid,
 116                                                   attr);
 117                 }
 118         }
 119 }
 120 /****************************************************************
 121 ****************************************************************/
 122
 123 static NTSTATUS libnet_dssync_bind(TALLOC_CTX *mem_ctx,
 124                                    struct dssync_context *ctx)
 125 {
 126         NTSTATUS status;
 127         WERROR werr;
 128
 129         struct GUID bind_guid;
 130         struct drsuapi_DsBindInfoCtr bind_info;
 131         struct drsuapi_DsBindInfo28 info28;
 132         struct dcerpc_binding_handle *b = ctx->cli->binding_handle;
 133
 134         ZERO_STRUCT(info28);
 135
 136         GUID_from_string(DRSUAPI_DS_BIND_GUID, &bind_guid);
 137
 138         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
 139         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
 140         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
 141         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
 142         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
 143         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
 144         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
 145         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
 146         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
 147         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
 148         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
 149         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
 150         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
 151         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
 152         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
 153         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
 154         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
 155         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
 156         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
 157         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
 158         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
 159         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
 160         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
 161         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
 162         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
 163         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
 164         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
 165         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
 166         info28.site_guid                = GUID_zero();
 167         info28.pid                      = 508;
 168         info28.repl_epoch               = 0;
 169
 170         bind_info.length = 28;
 171         bind_info.info.info28 = info28;
 172
 173         status = dcerpc_drsuapi_DsBind(b, mem_ctx,
 174                                        &bind_guid,
 175                                        &bind_info,
 176                                        &ctx->bind_handle,
 177                                        &werr);
 178
 179         if (!NT_STATUS_IS_OK(status)) {
 180                 return status;
 181         }
 182
 183         if (!W_ERROR_IS_OK(werr)) {
 184                 return werror_to_ntstatus(werr);
 185         }
 186
 187         ZERO_STRUCT(ctx->remote_info28);
 188         switch (bind_info.length) {
 189         case 24: {
 190                 struct drsuapi_DsBindInfo24 *info24;
 191                 info24 = &bind_info.info.info24;
 192                 ctx->remote_info28.site_guid            = info24->site_guid;
 193                 ctx->remote_info28.supported_extensions = info24->supported_extensions;
 194                 ctx->remote_info28.pid                  = info24->pid;
 195                 ctx->remote_info28.repl_epoch           = 0;
 196                 break;
 197         }
 198         case 28:
 199                 ctx->remote_info28 = bind_info.info.info28;
 200                 break;
 201         case 48: {
 202                 struct drsuapi_DsBindInfo48 *info48;
 203                 info48 = &bind_info.info.info48;
 204                 ctx->remote_info28.site_guid            = info48->site_guid;
 205                 ctx->remote_info28.supported_extensions = info48->supported_extensions;
 206                 ctx->remote_info28.pid                  = info48->pid;
 207                 ctx->remote_info28.repl_epoch           = info48->repl_epoch;
 208                 break;
 209         }
 210         default:
 211                 DEBUG(1, ("Warning: invalid info length in bind info: %d\n",
 212                           bind_info.length));
 213                 break;
 214         }
 215
 216         return status;
 217 }
 218
 219 /****************************************************************
 220 ****************************************************************/
 221
 222 static NTSTATUS libnet_dssync_lookup_nc(TALLOC_CTX *mem_ctx,
 223                                         struct dssync_context *ctx)
 224 {
 225         NTSTATUS status;
 226         WERROR werr;
 227         uint32_t level = 1;
 228         union drsuapi_DsNameRequest req;
 229         uint32_t level_out;
 230         struct drsuapi_DsNameString names[1];
 231         union drsuapi_DsNameCtr ctr;
 232         struct dcerpc_binding_handle *b = ctx->cli->binding_handle;
 233
 234         names[0].str = talloc_asprintf(mem_ctx, "%s\\", ctx->domain_name);
 235         NT_STATUS_HAVE_NO_MEMORY(names[0].str);
 236
 237         req.req1.codepage       = 1252; /* german */
 238         req.req1.language       = 0x00000407; /* german */
 239         req.req1.count          = 1;
 240         req.req1.names          = names;
 241         req.req1.format_flags   = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
 242         req.req1.format_offered = DRSUAPI_DS_NAME_FORMAT_UNKNOWN;
 243         req.req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 244
 245         status = dcerpc_drsuapi_DsCrackNames(b, mem_ctx,
 246                                              &ctx->bind_handle,
 247                                              level,
 248                                              &req,
 249                                              &level_out,
 250                                              &ctr,
 251                                              &werr);
 252         if (!NT_STATUS_IS_OK(status)) {
 253                 ctx->error_message = talloc_asprintf(ctx,
 254                         "Failed to lookup DN for domain name: %s",
 255                         get_friendly_nt_error_msg(status));
 256                 return status;
 257         }
 258
 259         if (!W_ERROR_IS_OK(werr)) {
 260                 ctx->error_message = talloc_asprintf(ctx,
 261                         "Failed to lookup DN for domain name: %s",
 262                         get_friendly_werror_msg(werr));
 263                 return werror_to_ntstatus(werr);
 264         }
 265
 266         if (ctr.ctr1->count != 1) {
 267                 return NT_STATUS_UNSUCCESSFUL;
 268         }
 269
 270         if (ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 271                 return NT_STATUS_UNSUCCESSFUL;
 272         }
 273
 274         ctx->nc_dn = talloc_strdup(mem_ctx, ctr.ctr1->array[0].result_name);
 275         NT_STATUS_HAVE_NO_MEMORY(ctx->nc_dn);
 276
 277         if (!ctx->dns_domain_name) {
 278                 ctx->dns_domain_name = talloc_strdup_upper(mem_ctx,
 279                         ctr.ctr1->array[0].dns_domain_name);
 280                 NT_STATUS_HAVE_NO_MEMORY(ctx->dns_domain_name);
 281         }
 282
 283         return NT_STATUS_OK;
 284 }
 285
 286 /****************************************************************
 287 ****************************************************************/
 288
 289 static NTSTATUS libnet_dssync_init(TALLOC_CTX *mem_ctx,
 290                                    struct dssync_context *ctx)
 291 {
 292         NTSTATUS status;
 293
 294         status = libnet_dssync_bind(mem_ctx, ctx);
 295         if (!NT_STATUS_IS_OK(status)) {
 296                 return status;
 297         }
 298
 299         if (!ctx->nc_dn) {
 300                 status = libnet_dssync_lookup_nc(mem_ctx, ctx);
 301         }
 302
 303         return status;
 304 }
 305
 306 /****************************************************************
 307 ****************************************************************/
 308
 309 static NTSTATUS libnet_dssync_build_request(TALLOC_CTX *mem_ctx,
 310                                             struct dssync_context *ctx,
 311                                             const char *dn,
 312                                             struct replUpToDateVectorBlob *utdv,
 313                                             uint32_t *plevel,
 314                                             union drsuapi_DsGetNCChangesRequest *preq)
 315 {
 316         NTSTATUS status;
 317         uint32_t count;
 318         uint32_t level;
 319         union drsuapi_DsGetNCChangesRequest req;
 320         struct dom_sid null_sid;
 321         enum drsuapi_DsExtendedOperation extended_op;
 322         struct drsuapi_DsReplicaObjectIdentifier *nc = NULL;
 323         struct drsuapi_DsReplicaCursorCtrEx *cursors = NULL;
 324
 325         uint32_t replica_flags  = DRSUAPI_DRS_WRIT_REP |
 326                                   DRSUAPI_DRS_INIT_SYNC |
 327                                   DRSUAPI_DRS_PER_SYNC |
 328                                   DRSUAPI_DRS_GET_ANC |
 329                                   DRSUAPI_DRS_NEVER_SYNCED;
 330
 331         ZERO_STRUCT(null_sid);
 332         ZERO_STRUCT(req);
 333
 334         if (ctx->remote_info28.supported_extensions
 335             & DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8)
 336         {
 337                 level = 8;
 338         } else {
 339                 level = 5;
 340         }
 341
 342         nc = TALLOC_ZERO_P(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
 343         if (!nc) {
 344                 status = NT_STATUS_NO_MEMORY;
 345                 goto fail;
 346         }
 347         nc->dn = dn;
 348         nc->guid = GUID_zero();
 349         nc->sid = null_sid;
 350
 351         if (!ctx->single_object_replication &&
 352             !ctx->force_full_replication && utdv)
 353         {
 354                 cursors = TALLOC_ZERO_P(mem_ctx,
 355                                          struct drsuapi_DsReplicaCursorCtrEx);
 356                 if (!cursors) {
 357                         status = NT_STATUS_NO_MEMORY;
 358                         goto fail;
 359                 }
 360
 361                 switch (utdv->version) {
 362                 case 1:
 363                         cursors->count = utdv->ctr.ctr1.count;
 364                         cursors->cursors = utdv->ctr.ctr1.cursors;
 365                         break;
 366                 case 2:
 367                         cursors->count = utdv->ctr.ctr2.count;
 368                         cursors->cursors = talloc_array(cursors,
 369                                                 struct drsuapi_DsReplicaCursor,
 370                                                 cursors->count);
 371                         if (!cursors->cursors) {
 372                                 status = NT_STATUS_NO_MEMORY;
 373                                 goto fail;
 374                         }
 375                         for (count = 0; count < cursors->count; count++) {
 376                                 cursors->cursors[count].source_dsa_invocation_id =
 377                                         utdv->ctr.ctr2.cursors[count].source_dsa_invocation_id;
 378                                 cursors->cursors[count].highest_usn =
 379                                         utdv->ctr.ctr2.cursors[count].highest_usn;
 380                         }
 381                         break;
 382                 }
 383         }
 384
 385         if (ctx->single_object_replication) {
 386                 extended_op = DRSUAPI_EXOP_REPL_OBJ;
 387         } else {
 388                 extended_op = DRSUAPI_EXOP_NONE;
 389         }
 390
 391         if (level == 8) {
 392                 req.req8.naming_context         = nc;
 393                 req.req8.replica_flags          = replica_flags;
 394                 req.req8.max_object_count       = 402;
 395                 req.req8.max_ndr_size           = 402116;
 396                 req.req8.uptodateness_vector    = cursors;
 397                 req.req8.extended_op            = extended_op;
 398         } else if (level == 5) {
 399                 req.req5.naming_context         = nc;
 400                 req.req5.replica_flags          = replica_flags;
 401                 req.req5.max_object_count       = 402;
 402                 req.req5.max_ndr_size           = 402116;
 403                 req.req5.uptodateness_vector    = cursors;
 404                 req.req5.extended_op            = extended_op;
 405         } else {
 406                 status = NT_STATUS_INVALID_PARAMETER;
 407                 goto fail;
 408         }
 409
 410         if (plevel) {
 411                 *plevel = level;
 412         }
 413
 414         if (preq) {
 415                 *preq = req;
 416         }
 417
 418         return NT_STATUS_OK;
 419
 420 fail:
 421         TALLOC_FREE(nc);
 422         TALLOC_FREE(cursors);
 423         return status;
 424 }
 425
 426 static NTSTATUS libnet_dssync_getncchanges(TALLOC_CTX *mem_ctx,
 427                                            struct dssync_context *ctx,
 428                                            uint32_t level,
 429                                            union drsuapi_DsGetNCChangesRequest *req,
 430                                            struct replUpToDateVectorBlob **pnew_utdv)
 431 {
 432         NTSTATUS status;
 433         WERROR werr;
 434         union drsuapi_DsGetNCChangesCtr ctr;
 435         struct drsuapi_DsGetNCChangesCtr1 *ctr1 = NULL;
 436         struct drsuapi_DsGetNCChangesCtr6 *ctr6 = NULL;
 437         struct replUpToDateVectorBlob *new_utdv = NULL;
 438         uint32_t level_out = 0;
 439         uint32_t out_level = 0;
 440         int y;
 441         bool last_query;
 442         struct dcerpc_binding_handle *b = ctx->cli->binding_handle;
 443
 444         if (!ctx->single_object_replication) {
 445                 new_utdv = TALLOC_ZERO_P(mem_ctx, struct replUpToDateVectorBlob);
 446                 if (!new_utdv) {
 447                         status = NT_STATUS_NO_MEMORY;
 448                         goto out;
 449                 }
 450         }
 451
 452         for (y=0, last_query = false; !last_query; y++) {
 453                 struct drsuapi_DsReplicaObjectListItemEx *first_object = NULL;
 454                 struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr = NULL;
 455                 uint32_t linked_attributes_count = 0;
 456                 struct drsuapi_DsReplicaLinkedAttribute *linked_attributes = NULL;
 457
 458                 if (level == 8) {
 459                         DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
 460                                 (long long)req->req8.highwatermark.tmp_highest_usn,
 461                                 (long long)req->req8.highwatermark.highest_usn));
 462                 } else if (level == 5) {
 463                         DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
 464                                 (long long)req->req5.highwatermark.tmp_highest_usn,
 465                                 (long long)req->req5.highwatermark.highest_usn));
 466                 }
 467
 468                 status = dcerpc_drsuapi_DsGetNCChanges(b, mem_ctx,
 469                                                        &ctx->bind_handle,
 470                                                        level,
 471                                                        req,
 472                                                        &level_out,
 473                                                        &ctr,
 474                                                        &werr);
 475                 if (!NT_STATUS_IS_OK(status)) {
 476                         ctx->error_message = talloc_asprintf(ctx,
 477                                 "Failed to get NC Changes: %s",
 478                                 get_friendly_nt_error_msg(status));
 479                         goto out;
 480                 }
 481
 482                 if (!W_ERROR_IS_OK(werr)) {
 483                         status = werror_to_ntstatus(werr);
 484                         ctx->error_message = talloc_asprintf(ctx,
 485                                 "Failed to get NC Changes: %s",
 486                                 get_friendly_werror_msg(werr));
 487                         goto out;
 488                 }
 489
 490                 if (level_out == 1) {
 491                         out_level = 1;
 492                         ctr1 = &ctr.ctr1;
 493                 } else if (level_out == 2 && ctr.ctr2.mszip1.ts) {
 494                         out_level = 1;
 495                         ctr1 = &ctr.ctr2.mszip1.ts->ctr1;
 496                 } else if (level_out == 6) {
 497                         out_level = 6;
 498                         ctr6 = &ctr.ctr6;
 499                 } else if (level_out == 7
 500                            && ctr.ctr7.level == 6
 501                            && ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_MSZIP
 502                            && ctr.ctr7.ctr.mszip6.ts) {
 503                         out_level = 6;
 504                         ctr6 = &ctr.ctr7.ctr.mszip6.ts->ctr6;
 505                 } else if (level_out == 7
 506                            && ctr.ctr7.level == 6
 507                            && ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS
 508                            && ctr.ctr7.ctr.xpress6.ts) {
 509                         out_level = 6;
 510                         ctr6 = &ctr.ctr7.ctr.xpress6.ts->ctr6;
 511                 }
 512
 513                 if (out_level == 1) {
 514                         DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
 515                                 (long long)ctr1->new_highwatermark.tmp_highest_usn,
 516                                 (long long)ctr1->new_highwatermark.highest_usn));
 517
 518                         first_object = ctr1->first_object;
 519                         mapping_ctr = &ctr1->mapping_ctr;
 520
 521                         if (ctr1->more_data) {
 522                                 req->req5.highwatermark = ctr1->new_highwatermark;
 523                         } else {
 524                                 last_query = true;
 525                                 if (ctr1->uptodateness_vector &&
 526                                     !ctx->single_object_replication)
 527                                 {
 528                                         new_utdv->version = 1;
 529                                         new_utdv->ctr.ctr1.count =
 530                                                 ctr1->uptodateness_vector->count;
 531                                         new_utdv->ctr.ctr1.cursors =
 532                                                 ctr1->uptodateness_vector->cursors;
 533                                 }
 534                         }
 535                 } else if (out_level == 6) {
 536                         DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
 537                                 (long long)ctr6->new_highwatermark.tmp_highest_usn,
 538                                 (long long)ctr6->new_highwatermark.highest_usn));
 539
 540                         first_object = ctr6->first_object;
 541                         mapping_ctr = &ctr6->mapping_ctr;
 542
 543                         linked_attributes = ctr6->linked_attributes;
 544                         linked_attributes_count = ctr6->linked_attributes_count;
 545
 546                         if (ctr6->more_data) {
 547                                 req->req8.highwatermark = ctr6->new_highwatermark;
 548                         } else {
 549                                 last_query = true;
 550                                 if (ctr6->uptodateness_vector &&
 551                                     !ctx->single_object_replication)
 552                                 {
 553                                         new_utdv->version = 2;
 554                                         new_utdv->ctr.ctr2.count =
 555                                                 ctr6->uptodateness_vector->count;
 556                                         new_utdv->ctr.ctr2.cursors =
 557                                                 ctr6->uptodateness_vector->cursors;
 558                                 }
 559                         }
 560                 }
 561
 562                 status = cli_get_session_key(mem_ctx, ctx->cli, &ctx->session_key);
 563                 if (!NT_STATUS_IS_OK(status)) {
 564                         ctx->error_message = talloc_asprintf(ctx,
 565                                 "Failed to get Session Key: %s",
 566                                 nt_errstr(status));
 567                         goto out;
 568                 }
 569
 570                 libnet_dssync_decrypt_attributes(mem_ctx,
 571                                                  &ctx->session_key,
 572                                                  first_object);
 573
 574                 if (ctx->ops->process_objects) {
 575                         status = ctx->ops->process_objects(ctx, mem_ctx,
 576                                                            first_object,
 577                                                            mapping_ctr);
 578                         if (!NT_STATUS_IS_OK(status)) {
 579                                 ctx->error_message = talloc_asprintf(ctx,
 580                                         "Failed to call processing function: %s",
 581                                         nt_errstr(status));
 582                                 goto out;
 583                         }
 584                 }
 585
 586                 if (linked_attributes_count == 0) {
 587                         continue;
 588                 }
 589
 590                 if (ctx->ops->process_links) {
 591                         status = ctx->ops->process_links(ctx, mem_ctx,
 592                                                          linked_attributes_count,
 593                                                          linked_attributes,
 594                                                          mapping_ctr);
 595                         if (!NT_STATUS_IS_OK(status)) {
 596                                 ctx->error_message = talloc_asprintf(ctx,
 597                                         "Failed to call processing function: %s",
 598                                         nt_errstr(status));
 599                                 goto out;
 600                         }
 601                 }
 602         }
 603
 604         *pnew_utdv = new_utdv;
 605
 606 out:
 607         return status;
 608 }
 609
 610 static NTSTATUS libnet_dssync_process(TALLOC_CTX *mem_ctx,
 611                                       struct dssync_context *ctx)
 612 {
 613         NTSTATUS status;
 614
 615         uint32_t level = 0;
 616         union drsuapi_DsGetNCChangesRequest req;
 617         struct replUpToDateVectorBlob *old_utdv = NULL;
 618         struct replUpToDateVectorBlob *pnew_utdv = NULL;
 619         const char **dns;
 620         uint32_t dn_count;
 621         uint32_t count;
 622
 623         if (ctx->ops->startup) {
 624                 status = ctx->ops->startup(ctx, mem_ctx, &old_utdv);
 625                 if (!NT_STATUS_IS_OK(status)) {
 626                         ctx->error_message = talloc_asprintf(ctx,
 627                                 "Failed to call startup operation: %s",
 628                                 nt_errstr(status));
 629                         goto out;
 630                 }
 631         }
 632
 633         if (ctx->single_object_replication && ctx->object_dns) {
 634                 dns = ctx->object_dns;
 635                 dn_count = ctx->object_count;
 636         } else {
 637                 dns = &ctx->nc_dn;
 638                 dn_count = 1;
 639         }
 640
 641         status = NT_STATUS_OK;
 642
 643         for (count=0; count < dn_count; count++) {
 644                 status = libnet_dssync_build_request(mem_ctx, ctx,
 645                                                      dns[count],
 646                                                      old_utdv, &level,
 647                                                      &req);
 648                 if (!NT_STATUS_IS_OK(status)) {
 649                         goto out;
 650                 }
 651
 652                 status = libnet_dssync_getncchanges(mem_ctx, ctx, level, &req,
 653                                                     &pnew_utdv);
 654                 if (!NT_STATUS_IS_OK(status)) {
 655                         ctx->error_message = talloc_asprintf(ctx,
 656                                 "Failed to call DsGetNCCHanges: %s",
 657                                 nt_errstr(status));
 658                         goto out;
 659                 }
 660         }
 661
 662         if (ctx->ops->finish) {
 663                 status = ctx->ops->finish(ctx, mem_ctx, pnew_utdv);
 664                 if (!NT_STATUS_IS_OK(status)) {
 665                         ctx->error_message = talloc_asprintf(ctx,
 666                                 "Failed to call finishing operation: %s",
 667                                 nt_errstr(status));
 668                         goto out;
 669                 }
 670         }
 671
 672  out:
 673         return status;
 674 }
 675
 676 /****************************************************************
 677 ****************************************************************/
 678
 679 NTSTATUS libnet_dssync(TALLOC_CTX *mem_ctx,
 680                        struct dssync_context *ctx)
 681 {
 682         NTSTATUS status;
 683         TALLOC_CTX *tmp_ctx;
 684
 685         tmp_ctx = talloc_new(mem_ctx);
 686         if (!tmp_ctx) {
 687                 return NT_STATUS_NO_MEMORY;
 688         }
 689
 690         status = libnet_dssync_init(tmp_ctx, ctx);
 691         if (!NT_STATUS_IS_OK(status)) {
 692                 goto out;
 693         }
 694
 695         status = libnet_dssync_process(tmp_ctx, ctx);
 696         if (!NT_STATUS_IS_OK(status)) {
 697                 goto out;
 698         }
 699
 700  out:
 701         TALLOC_FREE(tmp_ctx);
 702         return status;
 703 }
 704