source4/dsdb/samdb/ldb_modules/simple_ldap_map.c

   1 /*
   2    ldb database module
   3
   4    LDAP semantics mapping module
   5
   6    Copyright (C) Jelmer Vernooij 2005
   7    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 /*
  24    This module relies on ldb_map to do all the real work, but performs
  25    some of the trivial mappings between AD semantics and that provided
  26    by OpenLDAP and similar servers.
  27 */
  28
  29 #include "includes.h"
  30 #include "ldb/include/ldb.h"
  31 #include "ldb/include/ldb_private.h"
  32 #include "ldb/include/ldb_errors.h"
  33 #include "ldb/ldb_map/ldb_map.h"
  34
  35 #include "librpc/gen_ndr/ndr_misc.h"
  36 #include "librpc/ndr/libndr.h"
  37 #include "dsdb/samdb/samdb.h"
  38
  39 struct entryuuid_private {
  40         struct ldb_context *ldb;
  41         struct ldb_dn **base_dns;
  42 };
  43
  44 static struct ldb_val encode_guid(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
  45 {
  46         struct GUID guid;
  47         NTSTATUS status = GUID_from_string((char *)val->data, &guid);
  48         enum ndr_err_code ndr_err;
  49         struct ldb_val out = data_blob(NULL, 0);
  50
  51         if (!NT_STATUS_IS_OK(status)) {
  52                 return out;
  53         }
  54         ndr_err = ndr_push_struct_blob(&out, ctx, NULL, &guid,
  55                                        (ndr_push_flags_fn_t)ndr_push_GUID);
  56         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  57                 return out;
  58         }
  59
  60         return out;
  61 }
  62
  63 static struct ldb_val guid_always_string(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
  64 {
  65         struct GUID *guid;
  66         struct ldb_val out = data_blob(NULL, 0);
  67         if (val->length >= 32 && val->data[val->length] == '\0') {
  68                 ldb_handler_copy(module->ldb, ctx, val, &out);
  69         } else {
  70                 enum ndr_err_code ndr_err;
  71
  72                 guid = talloc(ctx, struct GUID);
  73                 if (guid == NULL) {
  74                         return out;
  75                 }
  76                 ndr_err = ndr_pull_struct_blob(val, guid, NULL, guid,
  77                                                (ndr_pull_flags_fn_t)ndr_pull_GUID);
  78                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  79                         talloc_free(guid);
  80                         return out;
  81                 }
  82                 out = data_blob_string_const(GUID_string(ctx, guid));
  83                 talloc_free(guid);
  84         }
  85         return out;
  86 }
  87
  88 static struct ldb_val encode_ns_guid(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
  89 {
  90         struct GUID guid;
  91         NTSTATUS status = NS_GUID_from_string((char *)val->data, &guid);
  92         enum ndr_err_code ndr_err;
  93         struct ldb_val out = data_blob(NULL, 0);
  94
  95         if (!NT_STATUS_IS_OK(status)) {
  96                 return out;
  97         }
  98         ndr_err = ndr_push_struct_blob(&out, ctx, NULL, &guid,
  99                                        (ndr_push_flags_fn_t)ndr_push_GUID);
 100         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 101                 return out;
 102         }
 103
 104         return out;
 105 }
 106
 107 static struct ldb_val guid_ns_string(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 108 {
 109         struct ldb_val out = data_blob(NULL, 0);
 110         if (val->length >= 32 && val->data[val->length] == '\0') {
 111                 struct GUID guid;
 112                 GUID_from_string((char *)val->data, &guid);
 113                 out = data_blob_string_const(NS_GUID_string(ctx, &guid));
 114         } else {
 115                 enum ndr_err_code ndr_err;
 116                 struct GUID *guid_p;
 117                 guid_p = talloc(ctx, struct GUID);
 118                 if (guid_p == NULL) {
 119                         return out;
 120                 }
 121                 ndr_err = ndr_pull_struct_blob(val, guid_p, NULL, guid_p,
 122                                                (ndr_pull_flags_fn_t)ndr_pull_GUID);
 123                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 124                         talloc_free(guid_p);
 125                         return out;
 126                 }
 127                 out = data_blob_string_const(NS_GUID_string(ctx, guid_p));
 128                 talloc_free(guid_p);
 129         }
 130         return out;
 131 }
 132
 133 /* The backend holds binary sids, so just copy them back */
 134 static struct ldb_val val_copy(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 135 {
 136         struct ldb_val out = data_blob(NULL, 0);
 137         ldb_handler_copy(module->ldb, ctx, val, &out);
 138
 139         return out;
 140 }
 141
 142 /* Ensure we always convert sids into binary, so the backend doesn't have to know about both forms */
 143 static struct ldb_val sid_always_binary(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 144 {
 145         struct ldb_val out = data_blob(NULL, 0);
 146         const struct ldb_schema_attribute *a = ldb_schema_attribute_by_name(module->ldb, "objectSid");
 147
 148         if (a->syntax->canonicalise_fn(module->ldb, ctx, val, &out) != LDB_SUCCESS) {
 149                 return data_blob(NULL, 0);
 150         }
 151
 152         return out;
 153 }
 154
 155 /* Ensure we always convert objectCategory into a DN */
 156 static struct ldb_val objectCategory_always_dn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 157 {
 158         struct ldb_dn *dn;
 159         struct ldb_val out = data_blob(NULL, 0);
 160         const struct ldb_schema_attribute *a = ldb_schema_attribute_by_name(module->ldb, "objectCategory");
 161
 162         dn = ldb_dn_from_ldb_val(ctx, module->ldb, val);
 163         if (dn && ldb_dn_validate(dn)) {
 164                 talloc_free(dn);
 165                 return val_copy(module, ctx, val);
 166         }
 167         talloc_free(dn);
 168
 169         if (a->syntax->canonicalise_fn(module->ldb, ctx, val, &out) != LDB_SUCCESS) {
 170                 return data_blob(NULL, 0);
 171         }
 172
 173         return out;
 174 }
 175
 176 static struct ldb_val normalise_to_signed32(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 177 {
 178         long long int signed_ll = strtoll((const char *)val->data, NULL, 10);
 179         if (signed_ll >= 0x80000000LL) {
 180                 union {
 181                         int32_t signed_int;
 182                         uint32_t unsigned_int;
 183                 } u = {
 184                         .unsigned_int = strtoul((const char *)val->data, NULL, 10)
 185                 };
 186
 187                 struct ldb_val out = data_blob_string_const(talloc_asprintf(ctx, "%d", u.signed_int));
 188                 return out;
 189         }
 190         return val_copy(module, ctx, val);
 191 }
 192
 193 static struct ldb_val usn_to_entryCSN(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 194 {
 195         struct ldb_val out;
 196         unsigned long long usn = strtoull((const char *)val->data, NULL, 10);
 197         time_t t = (usn >> 24);
 198         out = data_blob_string_const(talloc_asprintf(ctx, "%s#%06x#00#000000", ldb_timestring(ctx, t), (unsigned int)(usn & 0xFFFFFF)));
 199         return out;
 200 }
 201
 202 static unsigned long long entryCSN_to_usn_int(TALLOC_CTX *ctx, const struct ldb_val *val)
 203 {
 204         char *entryCSN = talloc_strdup(ctx, (const char *)val->data);
 205         char *mod_per_sec;
 206         time_t t;
 207         unsigned long long usn;
 208         char *p;
 209         if (!entryCSN) {
 210                 return 0;
 211         }
 212         p = strchr(entryCSN, '#');
 213         if (!p) {
 214                 return 0;
 215         }
 216         p[0] = '\0';
 217         p++;
 218         mod_per_sec = p;
 219
 220         p = strchr(p, '#');
 221         if (!p) {
 222                 return 0;
 223         }
 224         p[0] = '\0';
 225         p++;
 226
 227         usn = strtol(mod_per_sec, NULL, 16);
 228
 229         t = ldb_string_to_time(entryCSN);
 230
 231         usn = usn | ((unsigned long long)t <<24);
 232         return usn;
 233 }
 234
 235 static struct ldb_val entryCSN_to_usn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 236 {
 237         struct ldb_val out;
 238         unsigned long long usn = entryCSN_to_usn_int(ctx, val);
 239         out = data_blob_string_const(talloc_asprintf(ctx, "%lld", usn));
 240         return out;
 241 }
 242
 243 static struct ldb_val usn_to_timestamp(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 244 {
 245         struct ldb_val out;
 246         unsigned long long usn = strtoull((const char *)val->data, NULL, 10);
 247         time_t t = (usn >> 24);
 248         out = data_blob_string_const(ldb_timestring(ctx, t));
 249         return out;
 250 }
 251
 252 static struct ldb_val timestamp_to_usn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 253 {
 254         struct ldb_val out;
 255         time_t t;
 256         unsigned long long usn;
 257
 258         t = ldb_string_to_time((const char *)val->data);
 259
 260         usn = ((unsigned long long)t <<24);
 261
 262         out = data_blob_string_const(talloc_asprintf(ctx, "%lld", usn));
 263         return out;
 264 }
 265
 266
 267 static const struct ldb_map_attribute entryuuid_attributes[] =
 268 {
 269         /* objectGUID */
 270         {
 271                 .local_name = "objectGUID",
 272                 .type = MAP_CONVERT,
 273                 .u = {
 274                         .convert = {
 275                                 .remote_name = "entryUUID",
 276                                 .convert_local = guid_always_string,
 277                                 .convert_remote = encode_guid,
 278                         },
 279                 },
 280         },
 281         /* invocationId */
 282         {
 283                 .local_name = "invocationId",
 284                 .type = MAP_CONVERT,
 285                 .u = {
 286                         .convert = {
 287                                 .remote_name = "invocationId",
 288                                 .convert_local = guid_always_string,
 289                                 .convert_remote = encode_guid,
 290                         },
 291                 },
 292         },
 293         /* objectSid */
 294         {
 295                 .local_name = "objectSid",
 296                 .type = MAP_CONVERT,
 297                 .u = {
 298                         .convert = {
 299                                 .remote_name = "objectSid",
 300                                 .convert_local = sid_always_binary,
 301                                 .convert_remote = val_copy,
 302                         },
 303                 },
 304         },
 305         {
 306                 .local_name = "name",
 307                 .type = MAP_RENAME,
 308                 .u = {
 309                         .rename = {
 310                                  .remote_name = "samba4RDN"
 311                          }
 312                 }
 313         },
 314         {
 315                 .local_name = "whenCreated",
 316                 .type = MAP_RENAME,
 317                 .u = {
 318                         .rename = {
 319                                  .remote_name = "createTimestamp"
 320                          }
 321                 }
 322         },
 323         {
 324                 .local_name = "whenChanged",
 325                 .type = MAP_RENAME,
 326                 .u = {
 327                         .rename = {
 328                                  .remote_name = "modifyTimestamp"
 329                          }
 330                 }
 331         },
 332         {
 333                 .local_name = "objectClasses",
 334                 .type = MAP_RENAME,
 335                 .u = {
 336                         .rename = {
 337                                  .remote_name = "samba4ObjectClasses"
 338                          }
 339                 }
 340         },
 341         {
 342                 .local_name = "dITContentRules",
 343                 .type = MAP_RENAME,
 344                 .u = {
 345                         .rename = {
 346                                  .remote_name = "samba4DITContentRules"
 347                          }
 348                 }
 349         },
 350         {
 351                 .local_name = "attributeTypes",
 352                 .type = MAP_RENAME,
 353                 .u = {
 354                         .rename = {
 355                                  .remote_name = "samba4AttributeTypes"
 356                          }
 357                 }
 358         },
 359         {
 360                 .local_name = "objectCategory",
 361                 .type = MAP_CONVERT,
 362                 .u = {
 363                         .convert = {
 364                                 .remote_name = "objectCategory",
 365                                 .convert_local = objectCategory_always_dn,
 366                                 .convert_remote = val_copy,
 367                         },
 368                 },
 369         },
 370         {
 371                 .local_name = "distinguishedName",
 372                 .type = MAP_RENAME,
 373                 .u = {
 374                         .rename = {
 375                                  .remote_name = "entryDN"
 376                          }
 377                 }
 378         },
 379         {
 380                 .local_name = "groupType",
 381                 .type = MAP_CONVERT,
 382                 .u = {
 383                         .convert = {
 384                                  .remote_name = "groupType",
 385                                  .convert_local = normalise_to_signed32,
 386                                  .convert_remote = val_copy,
 387                          },
 388                 }
 389         },
 390         {
 391                 .local_name = "sAMAccountType",
 392                 .type = MAP_CONVERT,
 393                 .u = {
 394                         .convert = {
 395                                  .remote_name = "sAMAccountType",
 396                                  .convert_local = normalise_to_signed32,
 397                                  .convert_remote = val_copy,
 398                          },
 399                 }
 400         },
 401         {
 402                 .local_name = "usnChanged",
 403                 .type = MAP_CONVERT,
 404                 .u = {
 405                         .convert = {
 406                                  .remote_name = "entryCSN",
 407                                  .convert_local = usn_to_entryCSN,
 408                                  .convert_remote = entryCSN_to_usn
 409                          },
 410                 },
 411         },
 412         {
 413                 .local_name = "usnCreated",
 414                 .type = MAP_CONVERT,
 415                 .u = {
 416                         .convert = {
 417                                  .remote_name = "createTimestamp",
 418                                  .convert_local = usn_to_timestamp,
 419                                  .convert_remote = timestamp_to_usn,
 420                          },
 421                 },
 422         },
 423         {
 424                 .local_name = "*",
 425                 .type = MAP_KEEP,
 426         },
 427         {
 428                 .local_name = NULL,
 429         }
 430 };
 431
 432 /* This objectClass conflicts with builtin classes on OpenLDAP */
 433 const struct ldb_map_objectclass entryuuid_objectclasses[] =
 434 {
 435         {
 436                 .local_name = "subSchema",
 437                 .remote_name = "samba4SubSchema"
 438         },
 439         {
 440                 .local_name = NULL
 441         }
 442 };
 443
 444 /* These things do not show up in wildcard searches in OpenLDAP, but
 445  * we need them to show up in the AD-like view */
 446 static const char * const entryuuid_wildcard_attributes[] = {
 447         "objectGUID",
 448         "whenCreated",
 449         "whenChanged",
 450         "usnCreated",
 451         "usnChanged",
 452         "memberOf",
 453         NULL
 454 };
 455
 456 static const struct ldb_map_attribute nsuniqueid_attributes[] =
 457 {
 458         /* objectGUID */
 459         {
 460                 .local_name = "objectGUID",
 461                 .type = MAP_CONVERT,
 462                 .u = {
 463                         .convert = {
 464                                 .remote_name = "nsuniqueid",
 465                                 .convert_local = guid_ns_string,
 466                                 .convert_remote = encode_ns_guid,
 467                         },
 468                 },
 469         },
 470         /* objectSid */
 471         {
 472                 .local_name = "objectSid",
 473                 .type = MAP_CONVERT,
 474                 .u = {
 475                         .convert = {
 476                                 .remote_name = "objectSid",
 477                                 .convert_local = sid_always_binary,
 478                                 .convert_remote = val_copy,
 479                         },
 480                 },
 481         },
 482         {
 483                 .local_name = "whenCreated",
 484                 .type = MAP_RENAME,
 485                 .u = {
 486                         .rename = {
 487                                  .remote_name = "createTimestamp"
 488                          }
 489                 }
 490         },
 491         {
 492                 .local_name = "whenChanged",
 493                 .type = MAP_RENAME,
 494                 .u = {
 495                         .rename = {
 496                                  .remote_name = "modifyTimestamp"
 497                          }
 498                 }
 499         },
 500         {
 501                 .local_name = "objectCategory",
 502                 .type = MAP_CONVERT,
 503                 .u = {
 504                         .convert = {
 505                                 .remote_name = "objectCategory",
 506                                 .convert_local = objectCategory_always_dn,
 507                                 .convert_remote = val_copy,
 508                         },
 509                 },
 510         },
 511         {
 512                 .local_name = "distinguishedName",
 513                 .type = MAP_RENAME,
 514                 .u = {
 515                         .rename = {
 516                                  .remote_name = "entryDN"
 517                          }
 518                 }
 519         },
 520         {
 521                 .local_name = "groupType",
 522                 .type = MAP_CONVERT,
 523                 .u = {
 524                         .convert = {
 525                                  .remote_name = "groupType",
 526                                  .convert_local = normalise_to_signed32,
 527                                  .convert_remote = val_copy,
 528                          },
 529                 }
 530         },
 531         {
 532                 .local_name = "sAMAccountType",
 533                 .type = MAP_CONVERT,
 534                 .u = {
 535                         .convert = {
 536                                  .remote_name = "sAMAccountType",
 537                                  .convert_local = normalise_to_signed32,
 538                                  .convert_remote = val_copy,
 539                          },
 540                 }
 541         },
 542         {
 543                 .local_name = "usnChanged",
 544                 .type = MAP_CONVERT,
 545                 .u = {
 546                         .convert = {
 547                                  .remote_name = "modifyTimestamp",
 548                                  .convert_local = usn_to_timestamp,
 549                                  .convert_remote = timestamp_to_usn,
 550                          },
 551                 },
 552         },
 553         {
 554                 .local_name = "usnCreated",
 555                 .type = MAP_CONVERT,
 556                 .u = {
 557                         .convert = {
 558                                  .remote_name = "createTimestamp",
 559                                  .convert_local = usn_to_timestamp,
 560                                  .convert_remote = timestamp_to_usn,
 561                          },
 562                 },
 563         },
 564         {
 565                 .local_name = "*",
 566                 .type = MAP_KEEP,
 567         },
 568         {
 569                 .local_name = NULL,
 570         }
 571 };
 572
 573 /* These things do not show up in wildcard searches in OpenLDAP, but
 574  * we need them to show up in the AD-like view */
 575 static const char * const nsuniqueid_wildcard_attributes[] = {
 576         "objectGUID",
 577         "whenCreated",
 578         "whenChanged",
 579         "usnCreated",
 580         "usnChanged",
 581         NULL
 582 };
 583
 584 /* the context init function */
 585 static int entryuuid_init(struct ldb_module *module)
 586 {
 587         int ret;
 588         ret = ldb_map_init(module, entryuuid_attributes, entryuuid_objectclasses, entryuuid_wildcard_attributes, "samba4Top", NULL);
 589         if (ret != LDB_SUCCESS)
 590                 return ret;
 591
 592         return ldb_next_init(module);
 593 }
 594
 595 /* the context init function */
 596 static int nsuniqueid_init(struct ldb_module *module)
 597 {
 598         int ret;
 599         ret = ldb_map_init(module, nsuniqueid_attributes, NULL, nsuniqueid_wildcard_attributes, "extensibleObject", NULL);
 600         if (ret != LDB_SUCCESS)
 601                 return ret;
 602
 603         return ldb_next_init(module);
 604 }
 605
 606 static int get_seq_callback(struct ldb_request *req,
 607                             struct ldb_reply *ares)
 608 {
 609         unsigned long long *seq = (unsigned long long *)req->context;
 610
 611         if (!ares) {
 612                 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
 613         }
 614         if (ares->error != LDB_SUCCESS) {
 615                 return ldb_request_done(req, ares->error);
 616         }
 617
 618         if (ares->type == LDB_REPLY_ENTRY) {
 619                 struct ldb_message_element *el = ldb_msg_find_element(ares->message, "contextCSN");
 620                 if (el) {
 621                         *seq = entryCSN_to_usn_int(ares, &el->values[0]);
 622                 }
 623         }
 624
 625         if (ares->type == LDB_REPLY_DONE) {
 626                 return ldb_request_done(req, LDB_SUCCESS);
 627         }
 628
 629         talloc_free(ares);
 630         return LDB_SUCCESS;
 631 }
 632
 633 static int entryuuid_sequence_number(struct ldb_module *module, struct ldb_request *req)
 634 {
 635         int ret;
 636         struct map_private *map_private;
 637         struct entryuuid_private *entryuuid_private;
 638         unsigned long long seq_num = 0;
 639         struct ldb_request *search_req;
 640
 641         const struct ldb_control *partition_ctrl;
 642         const struct dsdb_control_current_partition *partition;
 643
 644         static const char *contextCSN_attr[] = {
 645                 "contextCSN", NULL
 646         };
 647
 648         struct ldb_seqnum_request *seq;
 649         struct ldb_seqnum_result *seqr;
 650         struct ldb_extended *ext;
 651
 652         seq = talloc_get_type(req->op.extended.data, struct ldb_seqnum_request);
 653
 654         map_private = talloc_get_type(module->private_data, struct map_private);
 655
 656         entryuuid_private = talloc_get_type(map_private->caller_private, struct entryuuid_private);
 657
 658         /* All this to get the DN of the parition, so we can search the right thing */
 659         partition_ctrl = ldb_request_get_control(req, DSDB_CONTROL_CURRENT_PARTITION_OID);
 660         if (!partition_ctrl) {
 661                 ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
 662                               "entryuuid_sequence_number: no current partition control found");
 663                 return LDB_ERR_CONSTRAINT_VIOLATION;
 664         }
 665
 666         partition = talloc_get_type(partition_ctrl->data,
 667                                     struct dsdb_control_current_partition);
 668         SMB_ASSERT(partition && partition->version == DSDB_CONTROL_CURRENT_PARTITION_VERSION);
 669
 670         ret = ldb_build_search_req(&search_req, module->ldb, req,
 671                                    partition->dn, LDB_SCOPE_BASE,
 672                                    NULL, contextCSN_attr, NULL,
 673                                    &seq_num, get_seq_callback,
 674                                    NULL);
 675         if (ret != LDB_SUCCESS) {
 676                 return ret;
 677         }
 678
 679         ret = ldb_next_request(module, search_req);
 680
 681         if (ret == LDB_SUCCESS) {
 682                 ret = ldb_wait(search_req->handle, LDB_WAIT_ALL);
 683         }
 684
 685         talloc_free(search_req);
 686         if (ret != LDB_SUCCESS) {
 687                 return ret;
 688         }
 689
 690         ext = talloc_zero(req, struct ldb_extended);
 691         if (!ext) {
 692                 return LDB_ERR_OPERATIONS_ERROR;
 693         }
 694         seqr = talloc_zero(req, struct ldb_seqnum_result);
 695         if (seqr == NULL) {
 696                 talloc_free(ext);
 697                 return LDB_ERR_OPERATIONS_ERROR;
 698         }
 699         ext->oid = LDB_EXTENDED_SEQUENCE_NUMBER;
 700         ext->data = seqr;
 701
 702         switch (seq->type) {
 703         case LDB_SEQ_HIGHEST_SEQ:
 704                 seqr->seq_num = seq_num;
 705                 break;
 706         case LDB_SEQ_NEXT:
 707                 seqr->seq_num = seq_num;
 708                 seqr->seq_num++;
 709                 break;
 710         case LDB_SEQ_HIGHEST_TIMESTAMP:
 711         {
 712                 seqr->seq_num = (seq_num >> 24);
 713                 break;
 714         }
 715         }
 716         seqr->flags = 0;
 717         seqr->flags |= LDB_SEQ_TIMESTAMP_SEQUENCE;
 718         seqr->flags |= LDB_SEQ_GLOBAL_SEQUENCE;
 719
 720         /* send request done */
 721         return ldb_module_done(req, NULL, ext, LDB_SUCCESS);
 722 }
 723
 724 static int entryuuid_extended(struct ldb_module *module, struct ldb_request *req)
 725 {
 726         if (strcmp(req->op.extended.oid, LDB_EXTENDED_SEQUENCE_NUMBER) == 0) {
 727                 return entryuuid_sequence_number(module, req);
 728         }
 729
 730         return ldb_next_request(module, req);
 731 }
 732
 733 _PUBLIC_ const struct ldb_module_ops ldb_entryuuid_module_ops = {
 734         .name              = "entryuuid",
 735         .init_context      = entryuuid_init,
 736         .extended          = entryuuid_extended,
 737         LDB_MAP_OPS
 738 };
 739
 740 _PUBLIC_ const struct ldb_module_ops ldb_nsuniqueid_module_ops = {
 741         .name              = "nsuniqueid",
 742         .init_context      = nsuniqueid_init,
 743         .extended          = entryuuid_extended,
 744         LDB_MAP_OPS
 745 };