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_module.h>
  31 #include "ldb/ldb_map/ldb_map.h"
  32
  33 #include "librpc/gen_ndr/ndr_misc.h"
  34 #include "librpc/ndr/libndr.h"
  35 #include "dsdb/samdb/samdb.h"
  36 #include <ldb_handlers.h>
  37
  38 struct entryuuid_private {
  39         struct ldb_context *ldb;
  40         struct ldb_dn **base_dns;
  41 };
  42
  43 static struct ldb_val encode_guid(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
  44 {
  45         struct GUID guid;
  46         NTSTATUS status = GUID_from_data_blob(val, &guid);
  47         struct ldb_val out = data_blob(NULL, 0);
  48
  49         if (!NT_STATUS_IS_OK(status)) {
  50                 return out;
  51         }
  52         status = GUID_to_ndr_blob(&guid, ctx, &out);
  53         if (!NT_STATUS_IS_OK(status)) {
  54                 return data_blob(NULL, 0);
  55         }
  56
  57         return out;
  58 }
  59
  60 static struct ldb_val guid_always_string(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
  61 {
  62         struct ldb_val out = data_blob(NULL, 0);
  63         struct GUID guid;
  64         NTSTATUS status = GUID_from_data_blob(val, &guid);
  65         if (!NT_STATUS_IS_OK(status)) {
  66                 return out;
  67         }
  68         return data_blob_string_const(GUID_string(ctx, &guid));
  69 }
  70
  71 static struct ldb_val encode_ns_guid(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
  72 {
  73         struct GUID guid;
  74         NTSTATUS status = NS_GUID_from_string((char *)val->data, &guid);
  75         struct ldb_val out = data_blob(NULL, 0);
  76
  77         if (!NT_STATUS_IS_OK(status)) {
  78                 return out;
  79         }
  80         status = GUID_to_ndr_blob(&guid, ctx, &out);
  81         if (!NT_STATUS_IS_OK(status)) {
  82                 return data_blob(NULL, 0);
  83         }
  84
  85         return out;
  86 }
  87
  88 static struct ldb_val guid_ns_string(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
  89 {
  90         struct ldb_val out = data_blob(NULL, 0);
  91         struct GUID guid;
  92         NTSTATUS status = GUID_from_data_blob(val, &guid);
  93         if (!NT_STATUS_IS_OK(status)) {
  94                 return out;
  95         }
  96         return data_blob_string_const(NS_GUID_string(ctx, &guid));
  97 }
  98
  99 /* The backend holds binary sids, so just copy them back */
 100 static struct ldb_val val_copy(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 101 {
 102         struct ldb_val out = data_blob(NULL, 0);
 103         out = ldb_val_dup(ctx, val);
 104
 105         return out;
 106 }
 107
 108 /* Ensure we always convert sids into binary, so the backend doesn't have to know about both forms */
 109 static struct ldb_val sid_always_binary(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 110 {
 111         struct ldb_context *ldb = ldb_module_get_ctx(module);
 112         struct ldb_val out = data_blob(NULL, 0);
 113         const struct ldb_schema_attribute *a = ldb_schema_attribute_by_name(ldb, "objectSid");
 114
 115         if (a->syntax->canonicalise_fn(ldb, ctx, val, &out) != LDB_SUCCESS) {
 116                 return data_blob(NULL, 0);
 117         }
 118
 119         return out;
 120 }
 121
 122 /* Ensure we always convert sids into string, so the backend doesn't have to know about both forms */
 123 static struct ldb_val sid_always_string(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 124 {
 125         struct ldb_context *ldb = ldb_module_get_ctx(module);
 126         struct ldb_val out = data_blob(NULL, 0);
 127
 128         if (ldif_comparision_objectSid_isString(val)) {
 129                 if (ldb_handler_copy(ldb, ctx, val, &out) != LDB_SUCCESS) {
 130                         return data_blob(NULL, 0);
 131                 }
 132
 133         } else {
 134                 if (ldif_write_objectSid(ldb, ctx, val, &out) != LDB_SUCCESS) {
 135                         return data_blob(NULL, 0);
 136                 }
 137         }
 138         return out;
 139 }
 140
 141 /* Ensure we always convert objectCategory into a DN */
 142 static struct ldb_val objectCategory_always_dn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 143 {
 144         struct ldb_context *ldb = ldb_module_get_ctx(module);
 145         struct ldb_dn *dn;
 146         struct ldb_val out = data_blob(NULL, 0);
 147         const struct ldb_schema_attribute *a = ldb_schema_attribute_by_name(ldb, "objectCategory");
 148
 149         dn = ldb_dn_from_ldb_val(ctx, ldb, val);
 150         if (ldb_dn_validate(dn)) {
 151                 talloc_free(dn);
 152                 return val_copy(module, ctx, val);
 153         }
 154         talloc_free(dn);
 155
 156         if (a->syntax->canonicalise_fn(ldb, ctx, val, &out) != LDB_SUCCESS) {
 157                 return data_blob(NULL, 0);
 158         }
 159
 160         return out;
 161 }
 162
 163 static struct ldb_val normalise_to_signed32(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 164 {
 165         struct ldb_val out;
 166         /* We've to use "strtoll" here to have the intended overflows.
 167          * Otherwise we may get "LONG_MAX" and the conversion is wrong. */
 168         int32_t i = (int32_t) strtoll((char *)val->data, NULL, 0);
 169         out = data_blob_string_const(talloc_asprintf(ctx, "%d", i));
 170         return out;
 171 }
 172
 173 static struct ldb_val usn_to_entryCSN(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 174 {
 175         struct ldb_val out;
 176         unsigned long long usn = strtoull((const char *)val->data, NULL, 10);
 177         time_t t = (usn >> 24);
 178         out = data_blob_string_const(talloc_asprintf(ctx, "%s#%06x#00#000000", ldb_timestring(ctx, t), (unsigned int)(usn & 0xFFFFFF)));
 179         return out;
 180 }
 181
 182 static unsigned long long entryCSN_to_usn_int(TALLOC_CTX *ctx, const struct ldb_val *val)
 183 {
 184         char *entryCSN = talloc_strndup(ctx, (const char *)val->data, val->length);
 185         char *mod_per_sec;
 186         time_t t;
 187         unsigned long long usn;
 188         char *p;
 189         if (!entryCSN) {
 190                 return 0;
 191         }
 192         p = strchr(entryCSN, '#');
 193         if (!p) {
 194                 return 0;
 195         }
 196         p[0] = '\0';
 197         p++;
 198         mod_per_sec = p;
 199
 200         p = strchr(p, '#');
 201         if (!p) {
 202                 return 0;
 203         }
 204         p[0] = '\0';
 205         p++;
 206
 207         usn = strtol(mod_per_sec, NULL, 16);
 208
 209         t = ldb_string_to_time(entryCSN);
 210
 211         usn = usn | ((unsigned long long)t <<24);
 212         return usn;
 213 }
 214
 215 static struct ldb_val entryCSN_to_usn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 216 {
 217         struct ldb_val out;
 218         unsigned long long usn = entryCSN_to_usn_int(ctx, val);
 219         out = data_blob_string_const(talloc_asprintf(ctx, "%lld", usn));
 220         return out;
 221 }
 222
 223 static struct ldb_val usn_to_timestamp(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 224 {
 225         struct ldb_val out;
 226         unsigned long long usn = strtoull((const char *)val->data, NULL, 10);
 227         time_t t = (usn >> 24);
 228         out = data_blob_string_const(ldb_timestring(ctx, t));
 229         return out;
 230 }
 231
 232 static struct ldb_val timestamp_to_usn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
 233 {
 234         struct ldb_val out;
 235         time_t t=0;
 236         unsigned long long usn;
 237
 238         ldb_val_to_time(val, &t);
 239
 240         usn = ((unsigned long long)t <<24);
 241
 242         out = data_blob_string_const(talloc_asprintf(ctx, "%lld", usn));
 243         return out;
 244 }
 245
 246
 247 static const struct ldb_map_attribute entryuuid_attributes[] =
 248 {
 249         /* objectGUID */
 250         {
 251                 .local_name = "objectGUID",
 252                 .type = LDB_MAP_CONVERT,
 253                 .u = {
 254                         .convert = {
 255                                 .remote_name = "entryUUID",
 256                                 .convert_local = guid_always_string,
 257                                 .convert_remote = encode_guid,
 258                         },
 259                 },
 260         },
 261         /* invocationId */
 262         {
 263                 .local_name = "invocationId",
 264                 .type = LDB_MAP_CONVERT,
 265                 .u = {
 266                         .convert = {
 267                                 .remote_name = "invocationId",
 268                                 .convert_local = guid_always_string,
 269                                 .convert_remote = encode_guid,
 270                         },
 271                 },
 272         },
 273         /* objectSid */
 274         {
 275                 .local_name = "objectSid",
 276                 .type = LDB_MAP_CONVERT,
 277                 .u = {
 278                         .convert = {
 279                                 .remote_name = "objectSid",
 280                                 .convert_local = sid_always_binary,
 281                                 .convert_remote = val_copy,
 282                         },
 283                 },
 284         },
 285         /* securityIdentifier */
 286         {
 287                 .local_name = "securityIdentifier",
 288                 .type = LDB_MAP_CONVERT,
 289                 .u = {
 290                         .convert = {
 291                                 .remote_name = "securityIdentifier",
 292                                 .convert_local = sid_always_binary,
 293                                 .convert_remote = val_copy,
 294                         },
 295                 },
 296         },
 297         {
 298                 .local_name = "name",
 299                 .type = LDB_MAP_RENAME,
 300                 .u = {
 301                         .rename = {
 302                                  .remote_name = "rdnValue"
 303                          }
 304                 }
 305         },
 306         {
 307                 .local_name = "whenCreated",
 308                 .type = LDB_MAP_RENAME,
 309                 .u = {
 310                         .rename = {
 311                                  .remote_name = "createTimestamp"
 312                          }
 313                 }
 314         },
 315         {
 316                 .local_name = "whenChanged",
 317                 .type = LDB_MAP_RENAME,
 318                 .u = {
 319                         .rename = {
 320                                  .remote_name = "modifyTimestamp"
 321                          }
 322                 }
 323         },
 324         {
 325                 .local_name = "objectClasses",
 326                 .type = LDB_MAP_RENAME,
 327                 .u = {
 328                         .rename = {
 329                                  .remote_name = "samba4ObjectClasses"
 330                          }
 331                 }
 332         },
 333         {
 334                 .local_name = "dITContentRules",
 335                 .type = LDB_MAP_RENAME,
 336                 .u = {
 337                         .rename = {
 338                                  .remote_name = "samba4DITContentRules"
 339                          }
 340                 }
 341         },
 342         {
 343                 .local_name = "attributeTypes",
 344                 .type = LDB_MAP_RENAME,
 345                 .u = {
 346                         .rename = {
 347                                  .remote_name = "samba4AttributeTypes"
 348                          }
 349                 }
 350         },
 351         {
 352                 .local_name = "objectCategory",
 353                 .type = LDB_MAP_CONVERT,
 354                 .u = {
 355                         .convert = {
 356                                 .remote_name = "objectCategory",
 357                                 .convert_local = objectCategory_always_dn,
 358                                 .convert_remote = val_copy,
 359                         },
 360                 },
 361         },
 362         {
 363                 .local_name = "distinguishedName",
 364                 .type = LDB_MAP_RENAME,
 365                 .u = {
 366                         .rename = {
 367                                  .remote_name = "entryDN"
 368                          }
 369                 }
 370         },
 371         {
 372                 .local_name = "primaryGroupID",
 373                 .type = LDB_MAP_CONVERT,
 374                 .u = {
 375                         .convert = {
 376                                  .remote_name = "primaryGroupID",
 377                                  .convert_local = normalise_to_signed32,
 378                                  .convert_remote = val_copy,
 379                         }
 380                 }
 381         },
 382         {
 383                 .local_name = "groupType",
 384                 .type = LDB_MAP_CONVERT,
 385                 .u = {
 386                         .convert = {
 387                                  .remote_name = "groupType",
 388                                  .convert_local = normalise_to_signed32,
 389                                  .convert_remote = val_copy,
 390                          }
 391                 }
 392         },
 393         {
 394                 .local_name = "userAccountControl",
 395                 .type = LDB_MAP_CONVERT,
 396                 .u = {
 397                         .convert = {
 398                                  .remote_name = "userAccountControl",
 399                                  .convert_local = normalise_to_signed32,
 400                                  .convert_remote = val_copy,
 401                          }
 402                 }
 403         },
 404         {
 405                 .local_name = "sAMAccountType",
 406                 .type = LDB_MAP_CONVERT,
 407                 .u = {
 408                         .convert = {
 409                                  .remote_name = "sAMAccountType",
 410                                  .convert_local = normalise_to_signed32,
 411                                  .convert_remote = val_copy,
 412                          }
 413                 }
 414         },
 415         {
 416                 .local_name = "systemFlags",
 417                 .type = LDB_MAP_CONVERT,
 418                 .u = {
 419                         .convert = {
 420                                  .remote_name = "systemFlags",
 421                                  .convert_local = normalise_to_signed32,
 422                                  .convert_remote = val_copy,
 423                          }
 424                 }
 425         },
 426         {
 427                 .local_name = "usnChanged",
 428                 .type = LDB_MAP_CONVERT,
 429                 .u = {
 430                         .convert = {
 431                                  .remote_name = "entryCSN",
 432                                  .convert_local = usn_to_entryCSN,
 433                                  .convert_remote = entryCSN_to_usn
 434                          },
 435                 },
 436         },
 437         {
 438                 .local_name = "usnCreated",
 439                 .type = LDB_MAP_CONVERT,
 440                 .u = {
 441                         .convert = {
 442                                  .remote_name = "createTimestamp",
 443                                  .convert_local = usn_to_timestamp,
 444                                  .convert_remote = timestamp_to_usn,
 445                          },
 446                 },
 447         },
 448         {
 449                 .local_name = "*",
 450                 .type = LDB_MAP_KEEP,
 451         },
 452         {
 453                 .local_name = NULL,
 454         }
 455 };
 456
 457 /* This objectClass conflicts with builtin classes on OpenLDAP */
 458 const struct ldb_map_objectclass entryuuid_objectclasses[] =
 459 {
 460         {
 461                 .local_name = "subSchema",
 462                 .remote_name = "samba4SubSchema"
 463         },
 464         {
 465                 .local_name = NULL
 466         }
 467 };
 468
 469 /* These things do not show up in wildcard searches in OpenLDAP, but
 470  * we need them to show up in the AD-like view */
 471 static const char * const entryuuid_wildcard_attributes[] = {
 472         "objectGUID",
 473         "whenCreated",
 474         "whenChanged",
 475         "usnCreated",
 476         "usnChanged",
 477         "memberOf",
 478         NULL
 479 };
 480
 481 static const struct ldb_map_attribute nsuniqueid_attributes[] =
 482 {
 483         /* objectGUID */
 484         {
 485                 .local_name = "objectGUID",
 486                 .type = LDB_MAP_CONVERT,
 487                 .u = {
 488                         .convert = {
 489                                 .remote_name = "nsuniqueid",
 490                                 .convert_local = guid_ns_string,
 491                                 .convert_remote = encode_ns_guid,
 492                         }
 493                 }
 494         },
 495         /* objectSid */
 496         {
 497                 .local_name = "objectSid",
 498                 .type = LDB_MAP_CONVERT,
 499                 .u = {
 500                         .convert = {
 501                                 .remote_name = "sambaSID",
 502                                 .convert_local = sid_always_string,
 503                                 .convert_remote = sid_always_binary,
 504                         }
 505                 }
 506         },
 507         /* securityIdentifier */
 508         {
 509                 .local_name = "securityIdentifier",
 510                 .type = LDB_MAP_CONVERT,
 511                 .u = {
 512                         .convert = {
 513                                 .remote_name = "securityIdentifier",
 514                                 .convert_local = sid_always_binary,
 515                                 .convert_remote = val_copy,
 516                         },
 517                 },
 518         },
 519         {
 520                 .local_name = "whenCreated",
 521                 .type = LDB_MAP_RENAME,
 522                 .u = {
 523                         .rename = {
 524                                  .remote_name = "createTimestamp"
 525                          }
 526                 }
 527         },
 528         {
 529                 .local_name = "whenChanged",
 530                 .type = LDB_MAP_RENAME,
 531                 .u = {
 532                         .rename = {
 533                                  .remote_name = "modifyTimestamp"
 534                          }
 535                 }
 536         },
 537         {
 538                 .local_name = "objectCategory",
 539                 .type = LDB_MAP_CONVERT,
 540                 .u = {
 541                         .convert = {
 542                                 .remote_name = "objectCategory",
 543                                 .convert_local = objectCategory_always_dn,
 544                                 .convert_remote = val_copy,
 545                         }
 546                 }
 547         },
 548         {
 549                 .local_name = "distinguishedName",
 550                 .type = LDB_MAP_RENAME,
 551                 .u = {
 552                         .rename = {
 553                                  .remote_name = "entryDN"
 554                          }
 555                 }
 556         },
 557         {
 558                 .local_name = "primaryGroupID",
 559                 .type = LDB_MAP_CONVERT,
 560                 .u = {
 561                         .convert = {
 562                                  .remote_name = "primaryGroupID",
 563                                  .convert_local = normalise_to_signed32,
 564                                  .convert_remote = val_copy,
 565                         }
 566                 }
 567         },
 568         {
 569                 .local_name = "groupType",
 570                 .type = LDB_MAP_CONVERT,
 571                 .u = {
 572                         .convert = {
 573                                  .remote_name = "sambaGroupType",
 574                                  .convert_local = normalise_to_signed32,
 575                                  .convert_remote = val_copy,
 576                          }
 577                 }
 578         },
 579         {
 580                 .local_name = "userAccountControl",
 581                 .type = LDB_MAP_CONVERT,
 582                 .u = {
 583                         .convert = {
 584                                  .remote_name = "userAccountControl",
 585                                  .convert_local = normalise_to_signed32,
 586                                  .convert_remote = val_copy,
 587                          }
 588                 }
 589         },
 590         {
 591                 .local_name = "sAMAccountType",
 592                 .type = LDB_MAP_CONVERT,
 593                 .u = {
 594                         .convert = {
 595                                  .remote_name = "sAMAccountType",
 596                                  .convert_local = normalise_to_signed32,
 597                                  .convert_remote = val_copy,
 598                          }
 599                 }
 600         },
 601         {
 602                 .local_name = "systemFlags",
 603                 .type = LDB_MAP_CONVERT,
 604                 .u = {
 605                         .convert = {
 606                                  .remote_name = "systemFlags",
 607                                  .convert_local = normalise_to_signed32,
 608                                  .convert_remote = val_copy,
 609                          }
 610                 }
 611         },
 612         {
 613                 .local_name = "usnChanged",
 614                 .type = LDB_MAP_CONVERT,
 615                 .u = {
 616                         .convert = {
 617                                  .remote_name = "modifyTimestamp",
 618                                  .convert_local = usn_to_timestamp,
 619                                  .convert_remote = timestamp_to_usn,
 620                          }
 621                 }
 622         },
 623         {
 624                 .local_name = "usnCreated",
 625                 .type = LDB_MAP_CONVERT,
 626                 .u = {
 627                         .convert = {
 628                                  .remote_name = "createTimestamp",
 629                                  .convert_local = usn_to_timestamp,
 630                                  .convert_remote = timestamp_to_usn,
 631                          }
 632                 }
 633         },
 634         {
 635                 .local_name = "pwdLastSet",
 636                 .type = LDB_MAP_RENAME,
 637                 .u = {
 638                         .rename = {
 639                                  .remote_name = "sambaPwdLastSet"
 640                          }
 641                 }
 642         },
 643         {
 644                 .local_name = "lastLogon",
 645                 .type = LDB_MAP_RENAME,
 646                 .u = {
 647                         .rename = {
 648                                  .remote_name = "sambaLogonTime"
 649                          }
 650                 }
 651         },
 652         {
 653                 .local_name = "lastLogoff",
 654                 .type = LDB_MAP_RENAME,
 655                 .u = {
 656                         .rename = {
 657                                  .remote_name = "sambaLogoffTime"
 658                          }
 659                 }
 660         },
 661         {
 662                 .local_name = "badPwdCount",
 663                 .type = LDB_MAP_RENAME,
 664                 .u = {
 665                         .rename = {
 666                                  .remote_name = "sambaBadPasswordCount"
 667                          }
 668                 }
 669         },
 670         {
 671                 .local_name = "logonHours",
 672                 .type = LDB_MAP_RENAME,
 673                 .u = {
 674                         .rename = {
 675                                  .remote_name = "sambaLogonHours"
 676                          }
 677                 }
 678         },
 679         {
 680                 .local_name = "homeDrive",
 681                 .type = LDB_MAP_RENAME,
 682                 .u = {
 683                         .rename = {
 684                                  .remote_name = "sambaHomeDrive"
 685                          }
 686                 }
 687         },
 688         {
 689                 .local_name = "scriptPath",
 690                 .type = LDB_MAP_RENAME,
 691                 .u = {
 692                         .rename = {
 693                                  .remote_name = "sambaLogonScript"
 694                          }
 695                 }
 696         },
 697         {
 698                 .local_name = "profilePath",
 699                 .type = LDB_MAP_RENAME,
 700                 .u = {
 701                         .rename = {
 702                                  .remote_name = "sambaProfilePath"
 703                          }
 704                 }
 705         },
 706         {
 707                 .local_name = "userWorkstations",
 708                 .type = LDB_MAP_RENAME,
 709                 .u = {
 710                         .rename = {
 711                                  .remote_name = "sambaUserWorkstations"
 712                          }
 713                 }
 714         },
 715         {
 716                 .local_name = "homeDirectory",
 717                 .type = LDB_MAP_RENAME,
 718                 .u = {
 719                         .rename = {
 720                                  .remote_name = "sambaHomePath"
 721                          }
 722                 }
 723         },
 724         {
 725                 .local_name = "nextRid",
 726                 .type = LDB_MAP_RENAME,
 727                 .u = {
 728                         .rename = {
 729                                  .remote_name = "sambaNextRid"
 730                          }
 731                 }
 732         },
 733         {
 734                 .local_name = "privilegeDisplayName",
 735                 .type = LDB_MAP_RENAME,
 736                 .u = {
 737                         .rename = {
 738                                  .remote_name = "sambaPrivName"
 739                          }
 740                 }
 741         },
 742         {
 743                 .local_name = "*",
 744                 .type = LDB_MAP_KEEP,
 745         },
 746         {
 747                 .local_name = NULL,
 748         }
 749 };
 750
 751 /* This objectClass conflicts with builtin classes on FDS */
 752 const struct ldb_map_objectclass nsuniqueid_objectclasses[] =
 753 {
 754         {
 755                 .local_name = NULL
 756         }
 757 };
 758
 759 /* These things do not show up in wildcard searches in OpenLDAP, but
 760  * we need them to show up in the AD-like view */
 761 static const char * const nsuniqueid_wildcard_attributes[] = {
 762         "objectGUID",
 763         "whenCreated",
 764         "whenChanged",
 765         "usnCreated",
 766         "usnChanged",
 767         NULL
 768 };
 769
 770 /* the context init function */
 771 static int entryuuid_init(struct ldb_module *module)
 772 {
 773         int ret;
 774         ret = ldb_map_init(module, entryuuid_attributes, entryuuid_objectclasses, entryuuid_wildcard_attributes, "samba4Top", NULL);
 775         if (ret != LDB_SUCCESS)
 776                 return ret;
 777
 778         return ldb_next_init(module);
 779 }
 780
 781 /* the context init function */
 782 static int nsuniqueid_init(struct ldb_module *module)
 783 {
 784         int ret;
 785         ret = ldb_map_init(module, nsuniqueid_attributes, nsuniqueid_objectclasses, nsuniqueid_wildcard_attributes, "extensibleObject", NULL);
 786         if (ret != LDB_SUCCESS)
 787                 return ret;
 788
 789         return ldb_next_init(module);
 790 }
 791
 792 static int get_seq_callback(struct ldb_request *req,
 793                             struct ldb_reply *ares)
 794 {
 795         unsigned long long *seq = (unsigned long long *)req->context;
 796
 797         if (!ares) {
 798                 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
 799         }
 800         if (ares->error != LDB_SUCCESS) {
 801                 return ldb_request_done(req, ares->error);
 802         }
 803
 804         if (ares->type == LDB_REPLY_ENTRY) {
 805                 struct ldb_message_element *el = ldb_msg_find_element(ares->message, "contextCSN");
 806                 if (el) {
 807                         *seq = entryCSN_to_usn_int(ares, &el->values[0]);
 808                 }
 809         }
 810
 811         if (ares->type == LDB_REPLY_DONE) {
 812                 return ldb_request_done(req, LDB_SUCCESS);
 813         }
 814
 815         talloc_free(ares);
 816         return LDB_SUCCESS;
 817 }
 818
 819 static int entryuuid_sequence_number(struct ldb_module *module, struct ldb_request *req)
 820 {
 821         struct ldb_context *ldb;
 822         int ret;
 823         struct map_private *map_private;
 824         struct entryuuid_private *entryuuid_private;
 825         unsigned long long seq_num = 0;
 826         struct ldb_request *search_req;
 827
 828         const struct ldb_control *partition_ctrl;
 829         const struct dsdb_control_current_partition *partition;
 830
 831         static const char *contextCSN_attr[] = {
 832                 "contextCSN", NULL
 833         };
 834
 835         struct ldb_seqnum_request *seq;
 836         struct ldb_seqnum_result *seqr;
 837         struct ldb_extended *ext;
 838
 839         ldb = ldb_module_get_ctx(module);
 840
 841         seq = talloc_get_type(req->op.extended.data, struct ldb_seqnum_request);
 842
 843         map_private = talloc_get_type(ldb_module_get_private(module), struct map_private);
 844
 845         entryuuid_private = talloc_get_type(map_private->caller_private, struct entryuuid_private);
 846
 847         /* All this to get the DN of the parition, so we can search the right thing */
 848         partition_ctrl = ldb_request_get_control(req, DSDB_CONTROL_CURRENT_PARTITION_OID);
 849         if (!partition_ctrl) {
 850                 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
 851                               "entryuuid_sequence_number: no current partition control found!");
 852                 return LDB_ERR_PROTOCOL_ERROR;
 853         }
 854
 855         partition = talloc_get_type(partition_ctrl->data,
 856                                     struct dsdb_control_current_partition);
 857         if ((partition == NULL) || (partition->version != DSDB_CONTROL_CURRENT_PARTITION_VERSION)) {
 858                 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
 859                               "entryuuid_sequence_number: current partition control with wrong data!");
 860                 return LDB_ERR_PROTOCOL_ERROR;
 861         }
 862
 863         ret = ldb_build_search_req(&search_req, ldb, req,
 864                                    partition->dn, LDB_SCOPE_BASE,
 865                                    NULL, contextCSN_attr, NULL,
 866                                    &seq_num, get_seq_callback,
 867                                    NULL);
 868         LDB_REQ_SET_LOCATION(search_req);
 869         if (ret != LDB_SUCCESS) {
 870                 return ret;
 871         }
 872
 873         ret = ldb_next_request(module, search_req);
 874
 875         if (ret == LDB_SUCCESS) {
 876                 ret = ldb_wait(search_req->handle, LDB_WAIT_ALL);
 877         }
 878
 879         talloc_free(search_req);
 880         if (ret != LDB_SUCCESS) {
 881                 return ret;
 882         }
 883
 884         ext = talloc_zero(req, struct ldb_extended);
 885         if (!ext) {
 886                 return ldb_oom(ldb);
 887         }
 888         seqr = talloc_zero(req, struct ldb_seqnum_result);
 889         if (seqr == NULL) {
 890                 talloc_free(ext);
 891                 return ldb_oom(ldb);
 892         }
 893         ext->oid = LDB_EXTENDED_SEQUENCE_NUMBER;
 894         ext->data = seqr;
 895
 896         switch (seq->type) {
 897         case LDB_SEQ_HIGHEST_SEQ:
 898                 seqr->seq_num = seq_num;
 899                 break;
 900         case LDB_SEQ_NEXT:
 901                 seqr->seq_num = seq_num;
 902                 seqr->seq_num++;
 903                 break;
 904         case LDB_SEQ_HIGHEST_TIMESTAMP:
 905                 return ldb_module_error(module, LDB_ERR_OPERATIONS_ERROR, "LDB_SEQ_HIGHEST_TIMESTAMP not supported");
 906         }
 907
 908         seqr->flags = 0;
 909         seqr->flags |= LDB_SEQ_GLOBAL_SEQUENCE;
 910
 911         /* send request done */
 912         return ldb_module_done(req, NULL, ext, LDB_SUCCESS);
 913 }
 914
 915 static int entryuuid_extended(struct ldb_module *module, struct ldb_request *req)
 916 {
 917         if (strcmp(req->op.extended.oid, LDB_EXTENDED_SEQUENCE_NUMBER) == 0) {
 918                 return entryuuid_sequence_number(module, req);
 919         }
 920
 921         return ldb_next_request(module, req);
 922 }
 923
 924 static const struct ldb_module_ops ldb_entryuuid_module_ops = {
 925         .name              = "entryuuid",
 926         .init_context      = entryuuid_init,
 927         .extended          = entryuuid_extended,
 928         LDB_MAP_OPS
 929 };
 930
 931 static const struct ldb_module_ops ldb_nsuniqueid_module_ops = {
 932         .name              = "nsuniqueid",
 933         .init_context      = nsuniqueid_init,
 934         .extended          = entryuuid_extended,
 935         LDB_MAP_OPS
 936 };
 937
 938 /*
 939   initialise the module
 940  */
 941 _PUBLIC_ int ldb_simple_ldap_map_module_init(const char *version)
 942 {
 943         int ret;
 944         LDB_MODULE_CHECK_VERSION(version);
 945         ret = ldb_register_module(&ldb_entryuuid_module_ops);
 946         if (ret != LDB_SUCCESS) {
 947                 return ret;
 948         }
 949         ret = ldb_register_module(&ldb_nsuniqueid_module_ops);
 950         if (ret != LDB_SUCCESS) {
 951                 return ret;
 952         }
 953         return LDB_SUCCESS;
 954 }