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(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                                                   0,
 117                                                   attr);
 118                 }
 119         }
 120 }
 121 /****************************************************************
 122 ****************************************************************/
 123
 124 static NTSTATUS libnet_dssync_bind(TALLOC_CTX *mem_ctx,
 125                                    struct dssync_context *ctx)
 126 {
 127         NTSTATUS status;
 128         WERROR werr;
 129
 130         struct GUID bind_guid;
 131         struct drsuapi_DsBindInfoCtr bind_info;
 132         struct drsuapi_DsBindInfo28 info28;
 133         struct dcerpc_binding_handle *b = ctx->cli->binding_handle;
 134
 135         ZERO_STRUCT(info28);
 136
 137         GUID_from_string(DRSUAPI_DS_BIND_GUID, &bind_guid);
 138
 139         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
 140         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
 141         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
 142         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
 143         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
 144         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
 145         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
 146         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
 147         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
 148         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
 149         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
 150         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
 151         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
 152         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
 153         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
 154         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
 155         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
 156         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
 157         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
 158         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
 159         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
 160         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
 161         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
 162         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
 163         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
 164         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
 165         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
 166         info28.supported_extensions     |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
 167         info28.site_guid                = GUID_zero();
 168         info28.pid                      = 508;
 169         info28.repl_epoch               = 0;
 170
 171         bind_info.length = 28;
 172         bind_info.info.info28 = info28;
 173
 174         status = dcerpc_drsuapi_DsBind(b, mem_ctx,
 175                                        &bind_guid,
 176                                        &bind_info,
 177                                        &ctx->bind_handle,
 178                                        &werr);
 179
 180         if (!NT_STATUS_IS_OK(status)) {
 181                 return status;
 182         }
 183
 184         if (!W_ERROR_IS_OK(werr)) {
 185                 return werror_to_ntstatus(werr);
 186         }
 187
 188         ZERO_STRUCT(ctx->remote_info28);
 189         switch (bind_info.length) {
 190         case 24: {
 191                 struct drsuapi_DsBindInfo24 *info24;
 192                 info24 = &bind_info.info.info24;
 193                 ctx->remote_info28.site_guid            = info24->site_guid;
 194                 ctx->remote_info28.supported_extensions = info24->supported_extensions;
 195                 ctx->remote_info28.pid                  = info24->pid;
 196                 ctx->remote_info28.repl_epoch           = 0;
 197                 break;
 198         }
 199         case 28: {
 200                 ctx->remote_info28 = bind_info.info.info28;
 201                 break;
 202         }
 203         case 32: {
 204                 struct drsuapi_DsBindInfo32 *info32;
 205                 info32 = &bind_info.info.info32;
 206                 ctx->remote_info28.site_guid            = info32->site_guid;
 207                 ctx->remote_info28.supported_extensions = info32->supported_extensions;
 208                 ctx->remote_info28.pid                  = info32->pid;
 209                 ctx->remote_info28.repl_epoch           = info32->repl_epoch;
 210                 break;
 211         }
 212         case 48: {
 213                 struct drsuapi_DsBindInfo48 *info48;
 214                 info48 = &bind_info.info.info48;
 215                 ctx->remote_info28.site_guid            = info48->site_guid;
 216                 ctx->remote_info28.supported_extensions = info48->supported_extensions;
 217                 ctx->remote_info28.pid                  = info48->pid;
 218                 ctx->remote_info28.repl_epoch           = info48->repl_epoch;
 219                 break;
 220         }
 221         case 52: {
 222                 struct drsuapi_DsBindInfo52 *info52;
 223                 info52 = &bind_info.info.info52;
 224                 ctx->remote_info28.site_guid            = info52->site_guid;
 225                 ctx->remote_info28.supported_extensions = info52->supported_extensions;
 226                 ctx->remote_info28.pid                  = info52->pid;
 227                 ctx->remote_info28.repl_epoch           = info52->repl_epoch;
 228                 break;
 229         }
 230         default:
 231                 DEBUG(1, ("Warning: invalid info length in bind info: %d\n",
 232                           bind_info.length));
 233                 break;
 234         }
 235
 236         return status;
 237 }
 238
 239 /****************************************************************
 240 ****************************************************************/
 241
 242 static NTSTATUS libnet_dssync_lookup_nc(TALLOC_CTX *mem_ctx,
 243                                         struct dssync_context *ctx)
 244 {
 245         NTSTATUS status;
 246         WERROR werr;
 247         uint32_t level = 1;
 248         union drsuapi_DsNameRequest req;
 249         uint32_t level_out;
 250         struct drsuapi_DsNameString names[1];
 251         union drsuapi_DsNameCtr ctr;
 252         struct dcerpc_binding_handle *b = ctx->cli->binding_handle;
 253
 254         names[0].str = talloc_asprintf(mem_ctx, "%s\\", ctx->domain_name);
 255         NT_STATUS_HAVE_NO_MEMORY(names[0].str);
 256
 257         req.req1.codepage       = 1252; /* german */
 258         req.req1.language       = 0x00000407; /* german */
 259         req.req1.count          = 1;
 260         req.req1.names          = names;
 261         req.req1.format_flags   = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
 262         req.req1.format_offered = DRSUAPI_DS_NAME_FORMAT_UNKNOWN;
 263         req.req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 264
 265         status = dcerpc_drsuapi_DsCrackNames(b, mem_ctx,
 266                                              &ctx->bind_handle,
 267                                              level,
 268                                              &req,
 269                                              &level_out,
 270                                              &ctr,
 271                                              &werr);
 272         if (!NT_STATUS_IS_OK(status)) {
 273                 ctx->error_message = talloc_asprintf(ctx,
 274                         "Failed to lookup DN for domain name: %s",
 275                         get_friendly_nt_error_msg(status));
 276                 return status;
 277         }
 278
 279         if (!W_ERROR_IS_OK(werr)) {
 280                 ctx->error_message = talloc_asprintf(ctx,
 281                         "Failed to lookup DN for domain name: %s",
 282                         get_friendly_werror_msg(werr));
 283                 return werror_to_ntstatus(werr);
 284         }
 285
 286         if (ctr.ctr1->count != 1) {
 287                 return NT_STATUS_UNSUCCESSFUL;
 288         }
 289
 290         if (ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 291                 return NT_STATUS_UNSUCCESSFUL;
 292         }
 293
 294         ctx->nc_dn = talloc_strdup(mem_ctx, ctr.ctr1->array[0].result_name);
 295         NT_STATUS_HAVE_NO_MEMORY(ctx->nc_dn);
 296
 297         if (!ctx->dns_domain_name) {
 298                 ctx->dns_domain_name = talloc_strdup_upper(mem_ctx,
 299                         ctr.ctr1->array[0].dns_domain_name);
 300                 NT_STATUS_HAVE_NO_MEMORY(ctx->dns_domain_name);
 301         }
 302
 303         return NT_STATUS_OK;
 304 }
 305
 306 /****************************************************************
 307 ****************************************************************/
 308
 309 static NTSTATUS libnet_dssync_init(TALLOC_CTX *mem_ctx,
 310                                    struct dssync_context *ctx)
 311 {
 312         NTSTATUS status;
 313
 314         status = libnet_dssync_bind(mem_ctx, ctx);
 315         if (!NT_STATUS_IS_OK(status)) {
 316                 return status;
 317         }
 318
 319         if (!ctx->nc_dn) {
 320                 status = libnet_dssync_lookup_nc(mem_ctx, ctx);
 321         }
 322
 323         return status;
 324 }
 325
 326 /****************************************************************
 327 ****************************************************************/
 328
 329 static NTSTATUS libnet_dssync_build_request(TALLOC_CTX *mem_ctx,
 330                                             struct dssync_context *ctx,
 331                                             const char *dn,
 332                                             struct replUpToDateVectorBlob *utdv,
 333                                             uint32_t *plevel,
 334                                             union drsuapi_DsGetNCChangesRequest *preq)
 335 {
 336         NTSTATUS status;
 337         uint32_t count;
 338         uint32_t level;
 339         union drsuapi_DsGetNCChangesRequest req;
 340         enum drsuapi_DsExtendedOperation extended_op;
 341         struct drsuapi_DsReplicaObjectIdentifier *nc = NULL;
 342         struct drsuapi_DsReplicaCursorCtrEx *cursors = NULL;
 343
 344         uint32_t replica_flags  = DRSUAPI_DRS_WRIT_REP |
 345                                   DRSUAPI_DRS_INIT_SYNC |
 346                                   DRSUAPI_DRS_PER_SYNC |
 347                                   DRSUAPI_DRS_GET_ANC |
 348                                   DRSUAPI_DRS_NEVER_SYNCED;
 349
 350         ZERO_STRUCT(req);
 351
 352         if (ctx->remote_info28.supported_extensions
 353             & DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8)
 354         {
 355                 level = 8;
 356         } else {
 357                 level = 5;
 358         }
 359
 360         nc = talloc_zero(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
 361         if (!nc) {
 362                 status = NT_STATUS_NO_MEMORY;
 363                 goto fail;
 364         }
 365         nc->dn = dn;
 366         nc->guid = GUID_zero();
 367         nc->sid = (struct dom_sid) {0};
 368
 369         if (!ctx->single_object_replication &&
 370             !ctx->force_full_replication && utdv)
 371         {
 372                 cursors = talloc_zero(mem_ctx,
 373                                          struct drsuapi_DsReplicaCursorCtrEx);
 374                 if (!cursors) {
 375                         status = NT_STATUS_NO_MEMORY;
 376                         goto fail;
 377                 }
 378
 379                 switch (utdv->version) {
 380                 case 1:
 381                         cursors->count = utdv->ctr.ctr1.count;
 382                         cursors->cursors = utdv->ctr.ctr1.cursors;
 383                         break;
 384                 case 2:
 385                         cursors->count = utdv->ctr.ctr2.count;
 386                         cursors->cursors = talloc_array(cursors,
 387                                                 struct drsuapi_DsReplicaCursor,
 388                                                 cursors->count);
 389                         if (!cursors->cursors) {
 390                                 status = NT_STATUS_NO_MEMORY;
 391                                 goto fail;
 392                         }
 393                         for (count = 0; count < cursors->count; count++) {
 394                                 cursors->cursors[count].source_dsa_invocation_id =
 395                                         utdv->ctr.ctr2.cursors[count].source_dsa_invocation_id;
 396                                 cursors->cursors[count].highest_usn =
 397                                         utdv->ctr.ctr2.cursors[count].highest_usn;
 398                         }
 399                         break;
 400                 }
 401         }
 402
 403         if (ctx->single_object_replication) {
 404                 extended_op = DRSUAPI_EXOP_REPL_OBJ;
 405         } else {
 406                 extended_op = DRSUAPI_EXOP_NONE;
 407         }
 408
 409         if (level == 8) {
 410                 req.req8.naming_context         = nc;
 411                 req.req8.replica_flags          = replica_flags;
 412                 req.req8.max_object_count       = 402;
 413                 req.req8.max_ndr_size           = 402116;
 414                 req.req8.uptodateness_vector    = cursors;
 415                 req.req8.extended_op            = extended_op;
 416         } else if (level == 5) {
 417                 req.req5.naming_context         = nc;
 418                 req.req5.replica_flags          = replica_flags;
 419                 req.req5.max_object_count       = 402;
 420                 req.req5.max_ndr_size           = 402116;
 421                 req.req5.uptodateness_vector    = cursors;
 422                 req.req5.extended_op            = extended_op;
 423         } else {
 424                 status = NT_STATUS_INVALID_PARAMETER;
 425                 goto fail;
 426         }
 427
 428         if (plevel) {
 429                 *plevel = level;
 430         }
 431
 432         if (preq) {
 433                 *preq = req;
 434         }
 435
 436         return NT_STATUS_OK;
 437
 438 fail:
 439         TALLOC_FREE(nc);
 440         TALLOC_FREE(cursors);
 441         return status;
 442 }
 443
 444 static NTSTATUS libnet_dssync_getncchanges(TALLOC_CTX *mem_ctx,
 445                                            struct dssync_context *ctx,
 446                                            uint32_t level,
 447                                            union drsuapi_DsGetNCChangesRequest *req,
 448                                            struct replUpToDateVectorBlob **pnew_utdv)
 449 {
 450         NTSTATUS status;
 451         WERROR werr;
 452         union drsuapi_DsGetNCChangesCtr ctr;
 453         struct drsuapi_DsGetNCChangesCtr1 *ctr1 = NULL;
 454         struct drsuapi_DsGetNCChangesCtr6 *ctr6 = NULL;
 455         struct replUpToDateVectorBlob *new_utdv = NULL;
 456         uint32_t level_out = 0;
 457         uint32_t out_level = 0;
 458         int y;
 459         bool last_query;
 460         struct dcerpc_binding_handle *b = ctx->cli->binding_handle;
 461
 462         if (!ctx->single_object_replication) {
 463                 new_utdv = talloc_zero(mem_ctx, struct replUpToDateVectorBlob);
 464                 if (!new_utdv) {
 465                         status = NT_STATUS_NO_MEMORY;
 466                         goto out;
 467                 }
 468         }
 469
 470         for (y=0, last_query = false; !last_query; y++) {
 471                 struct drsuapi_DsReplicaObjectListItemEx *first_object = NULL;
 472                 struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr = NULL;
 473                 uint32_t linked_attributes_count = 0;
 474                 struct drsuapi_DsReplicaLinkedAttribute *linked_attributes = NULL;
 475
 476                 if (level == 8) {
 477                         DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
 478                                 (long long)req->req8.highwatermark.tmp_highest_usn,
 479                                 (long long)req->req8.highwatermark.highest_usn));
 480                 } else if (level == 5) {
 481                         DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
 482                                 (long long)req->req5.highwatermark.tmp_highest_usn,
 483                                 (long long)req->req5.highwatermark.highest_usn));
 484                 }
 485
 486                 status = dcerpc_drsuapi_DsGetNCChanges(b, mem_ctx,
 487                                                        &ctx->bind_handle,
 488                                                        level,
 489                                                        req,
 490                                                        &level_out,
 491                                                        &ctr,
 492                                                        &werr);
 493                 if (!NT_STATUS_IS_OK(status)) {
 494                         ctx->error_message = talloc_asprintf(ctx,
 495                                 "Failed to get NC Changes: %s",
 496                                 get_friendly_nt_error_msg(status));
 497                         goto out;
 498                 }
 499
 500                 if (!W_ERROR_IS_OK(werr)) {
 501                         status = werror_to_ntstatus(werr);
 502                         ctx->error_message = talloc_asprintf(ctx,
 503                                 "Failed to get NC Changes: %s",
 504                                 get_friendly_werror_msg(werr));
 505                         goto out;
 506                 }
 507
 508                 if (level_out == 1) {
 509                         out_level = 1;
 510                         ctr1 = &ctr.ctr1;
 511                 } else if (level_out == 2 && ctr.ctr2.mszip1.ts) {
 512                         out_level = 1;
 513                         ctr1 = &ctr.ctr2.mszip1.ts->ctr1;
 514                 } else if (level_out == 6) {
 515                         out_level = 6;
 516                         ctr6 = &ctr.ctr6;
 517                 } else if (level_out == 7
 518                            && ctr.ctr7.level == 6
 519                            && ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_MSZIP
 520                            && ctr.ctr7.ctr.mszip6.ts) {
 521                         out_level = 6;
 522                         ctr6 = &ctr.ctr7.ctr.mszip6.ts->ctr6;
 523                 } else if (level_out == 7
 524                            && ctr.ctr7.level == 6
 525                            && ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS
 526                            && ctr.ctr7.ctr.xpress6.ts) {
 527                         out_level = 6;
 528                         ctr6 = &ctr.ctr7.ctr.xpress6.ts->ctr6;
 529                 }
 530
 531                 if (out_level == 1) {
 532                         DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
 533                                 (long long)ctr1->new_highwatermark.tmp_highest_usn,
 534                                 (long long)ctr1->new_highwatermark.highest_usn));
 535
 536                         first_object = ctr1->first_object;
 537                         mapping_ctr = &ctr1->mapping_ctr;
 538
 539                         if (ctr1->more_data) {
 540                                 req->req5.highwatermark = ctr1->new_highwatermark;
 541                         } else {
 542                                 last_query = true;
 543                                 if (ctr1->uptodateness_vector &&
 544                                     !ctx->single_object_replication)
 545                                 {
 546                                         new_utdv->version = 1;
 547                                         new_utdv->ctr.ctr1.count =
 548                                                 ctr1->uptodateness_vector->count;
 549                                         new_utdv->ctr.ctr1.cursors =
 550                                                 ctr1->uptodateness_vector->cursors;
 551                                 }
 552                         }
 553                 } else if (out_level == 6) {
 554                         DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
 555                                 (long long)ctr6->new_highwatermark.tmp_highest_usn,
 556                                 (long long)ctr6->new_highwatermark.highest_usn));
 557
 558                         first_object = ctr6->first_object;
 559                         mapping_ctr = &ctr6->mapping_ctr;
 560
 561                         linked_attributes = ctr6->linked_attributes;
 562                         linked_attributes_count = ctr6->linked_attributes_count;
 563
 564                         if (ctr6->more_data) {
 565                                 req->req8.highwatermark = ctr6->new_highwatermark;
 566                         } else {
 567                                 last_query = true;
 568                                 if (ctr6->uptodateness_vector &&
 569                                     !ctx->single_object_replication)
 570                                 {
 571                                         new_utdv->version = 2;
 572                                         new_utdv->ctr.ctr2.count =
 573                                                 ctr6->uptodateness_vector->count;
 574                                         new_utdv->ctr.ctr2.cursors =
 575                                                 ctr6->uptodateness_vector->cursors;
 576                                 }
 577                         }
 578                 }
 579
 580                 status = cli_get_session_key(mem_ctx, ctx->cli, &ctx->session_key);
 581                 if (!NT_STATUS_IS_OK(status)) {
 582                         ctx->error_message = talloc_asprintf(ctx,
 583                                 "Failed to get Session Key: %s",
 584                                 nt_errstr(status));
 585                         goto out;
 586                 }
 587
 588                 libnet_dssync_decrypt_attributes(mem_ctx,
 589                                                  &ctx->session_key,
 590                                                  first_object);
 591
 592                 if (ctx->ops->process_objects) {
 593                         status = ctx->ops->process_objects(ctx, mem_ctx,
 594                                                            first_object,
 595                                                            mapping_ctr);
 596                         if (!NT_STATUS_IS_OK(status)) {
 597                                 ctx->error_message = talloc_asprintf(ctx,
 598                                         "Failed to call processing function: %s",
 599                                         nt_errstr(status));
 600                                 goto out;
 601                         }
 602                 }
 603
 604                 if (linked_attributes_count == 0) {
 605                         continue;
 606                 }
 607
 608                 if (ctx->ops->process_links) {
 609                         status = ctx->ops->process_links(ctx, mem_ctx,
 610                                                          linked_attributes_count,
 611                                                          linked_attributes,
 612                                                          mapping_ctr);
 613                         if (!NT_STATUS_IS_OK(status)) {
 614                                 ctx->error_message = talloc_asprintf(ctx,
 615                                         "Failed to call processing function: %s",
 616                                         nt_errstr(status));
 617                                 goto out;
 618                         }
 619                 }
 620         }
 621
 622         *pnew_utdv = new_utdv;
 623
 624 out:
 625         return status;
 626 }
 627
 628 static NTSTATUS libnet_dssync_process(TALLOC_CTX *mem_ctx,
 629                                       struct dssync_context *ctx)
 630 {
 631         NTSTATUS status;
 632
 633         uint32_t level = 0;
 634         union drsuapi_DsGetNCChangesRequest req;
 635         struct replUpToDateVectorBlob *old_utdv = NULL;
 636         struct replUpToDateVectorBlob *pnew_utdv = NULL;
 637         const char **dns;
 638         uint32_t dn_count;
 639         uint32_t count;
 640
 641         if (ctx->ops->startup) {
 642                 status = ctx->ops->startup(ctx, mem_ctx, &old_utdv);
 643                 if (!NT_STATUS_IS_OK(status)) {
 644                         ctx->error_message = talloc_asprintf(ctx,
 645                                 "Failed to call startup operation: %s",
 646                                 nt_errstr(status));
 647                         goto out;
 648                 }
 649         }
 650
 651         if (ctx->single_object_replication && ctx->object_dns) {
 652                 dns = ctx->object_dns;
 653                 dn_count = ctx->object_count;
 654         } else {
 655                 dns = &ctx->nc_dn;
 656                 dn_count = 1;
 657         }
 658
 659         status = NT_STATUS_OK;
 660
 661         for (count=0; count < dn_count; count++) {
 662                 status = libnet_dssync_build_request(mem_ctx, ctx,
 663                                                      dns[count],
 664                                                      old_utdv, &level,
 665                                                      &req);
 666                 if (!NT_STATUS_IS_OK(status)) {
 667                         goto out;
 668                 }
 669
 670                 status = libnet_dssync_getncchanges(mem_ctx, ctx, level, &req,
 671                                                     &pnew_utdv);
 672                 if (!NT_STATUS_IS_OK(status)) {
 673                         if (!ctx->error_message) {
 674                                 ctx->error_message = talloc_asprintf(ctx,
 675                                         "Failed to call DsGetNCCHanges: %s",
 676                                         nt_errstr(status));
 677                         }
 678                         goto out;
 679                 }
 680         }
 681
 682         if (ctx->ops->finish) {
 683                 status = ctx->ops->finish(ctx, mem_ctx, pnew_utdv);
 684                 if (!NT_STATUS_IS_OK(status)) {
 685                         ctx->error_message = talloc_asprintf(ctx,
 686                                 "Failed to call finishing operation: %s",
 687                                 nt_errstr(status));
 688                         goto out;
 689                 }
 690         }
 691
 692  out:
 693         return status;
 694 }
 695
 696 /****************************************************************
 697 ****************************************************************/
 698
 699 NTSTATUS libnet_dssync(TALLOC_CTX *mem_ctx,
 700                        struct dssync_context *ctx)
 701 {
 702         NTSTATUS status;
 703         TALLOC_CTX *tmp_ctx;
 704
 705         tmp_ctx = talloc_new(mem_ctx);
 706         if (!tmp_ctx) {
 707                 return NT_STATUS_NO_MEMORY;
 708         }
 709
 710         status = libnet_dssync_init(tmp_ctx, ctx);
 711         if (!NT_STATUS_IS_OK(status)) {
 712                 goto out;
 713         }
 714
 715         status = libnet_dssync_process(tmp_ctx, ctx);
 716         if (!NT_STATUS_IS_OK(status)) {
 717                 goto out;
 718         }
 719
 720  out:
 721         TALLOC_FREE(tmp_ctx);
 722         return status;
 723 }
 724