source4/dsdb/schema/schema_init.c

   1 /*
   2    Unix SMB/CIFS mplementation.
   3    DSDB schema header
   4
   5    Copyright (C) Stefan Metzmacher <metze@samba.org> 2006-2007
   6    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006-2008
   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 "dsdb/samdb/samdb.h"
  25 #include "lib/ldb/include/ldb_errors.h"
  26 #include "../lib/util/dlinklist.h"
  27 #include "librpc/gen_ndr/ndr_misc.h"
  28 #include "librpc/gen_ndr/ndr_drsuapi.h"
  29 #include "librpc/gen_ndr/ndr_drsblobs.h"
  30 #include "param/param.h"
  31
  32 struct dsdb_schema *dsdb_new_schema(TALLOC_CTX *mem_ctx, struct smb_iconv_convenience *iconv_convenience)
  33 {
  34         struct dsdb_schema *schema = talloc_zero(mem_ctx, struct dsdb_schema);
  35         if (!schema) {
  36                 return NULL;
  37         }
  38
  39         schema->iconv_convenience = iconv_convenience;
  40         return schema;
  41 }
  42
  43
  44 WERROR dsdb_load_oid_mappings_drsuapi(struct dsdb_schema *schema, const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr)
  45 {
  46         uint32_t i,j;
  47
  48         schema->prefixes = talloc_array(schema, struct dsdb_schema_oid_prefix, ctr->num_mappings);
  49         W_ERROR_HAVE_NO_MEMORY(schema->prefixes);
  50
  51         for (i=0, j=0; i < ctr->num_mappings; i++) {
  52                 if (ctr->mappings[i].oid.oid == NULL) {
  53                         return WERR_INVALID_PARAM;
  54                 }
  55
  56                 if (strncasecmp(ctr->mappings[i].oid.oid, "ff", 2) == 0) {
  57                         if (ctr->mappings[i].id_prefix != 0) {
  58                                 return WERR_INVALID_PARAM;
  59                         }
  60
  61                         /* the magic value should be in the last array member */
  62                         if (i != (ctr->num_mappings - 1)) {
  63                                 return WERR_INVALID_PARAM;
  64                         }
  65
  66                         if (ctr->mappings[i].oid.__ndr_size != 21) {
  67                                 return WERR_INVALID_PARAM;
  68                         }
  69
  70                         schema->schema_info = talloc_strdup(schema, ctr->mappings[i].oid.oid);
  71                         W_ERROR_HAVE_NO_MEMORY(schema->schema_info);
  72                 } else {
  73                         /* the last array member should contain the magic value not a oid */
  74                         if (i == (ctr->num_mappings - 1)) {
  75                                 return WERR_INVALID_PARAM;
  76                         }
  77
  78                         schema->prefixes[j].id  = ctr->mappings[i].id_prefix<<16;
  79                         schema->prefixes[j].oid = talloc_asprintf(schema->prefixes, "%s.",
  80                                                                   ctr->mappings[i].oid.oid);
  81                         W_ERROR_HAVE_NO_MEMORY(schema->prefixes[j].oid);
  82                         schema->prefixes[j].oid_len = strlen(schema->prefixes[j].oid);
  83                         j++;
  84                 }
  85         }
  86
  87         schema->num_prefixes = j;
  88         return WERR_OK;
  89 }
  90
  91 WERROR dsdb_load_oid_mappings_ldb(struct dsdb_schema *schema,
  92                                   const struct ldb_val *prefixMap,
  93                                   const struct ldb_val *schemaInfo)
  94 {
  95         WERROR status;
  96         enum ndr_err_code ndr_err;
  97         struct prefixMapBlob pfm;
  98         char *schema_info;
  99
 100         TALLOC_CTX *mem_ctx = talloc_new(schema);
 101         W_ERROR_HAVE_NO_MEMORY(mem_ctx);
 102
 103         ndr_err = ndr_pull_struct_blob(prefixMap, mem_ctx, schema->iconv_convenience, &pfm, (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 104         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 105                 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
 106                 talloc_free(mem_ctx);
 107                 return ntstatus_to_werror(nt_status);
 108         }
 109
 110         if (pfm.version != PREFIX_MAP_VERSION_DSDB) {
 111                 talloc_free(mem_ctx);
 112                 return WERR_FOOBAR;
 113         }
 114
 115         if (schemaInfo->length != 21 && schemaInfo->data[0] == 0xFF) {
 116                 talloc_free(mem_ctx);
 117                 return WERR_FOOBAR;
 118         }
 119
 120         /* append the schema info as last element */
 121         pfm.ctr.dsdb.num_mappings++;
 122         pfm.ctr.dsdb.mappings = talloc_realloc(mem_ctx, pfm.ctr.dsdb.mappings,
 123                                                struct drsuapi_DsReplicaOIDMapping,
 124                                                pfm.ctr.dsdb.num_mappings);
 125         W_ERROR_HAVE_NO_MEMORY(pfm.ctr.dsdb.mappings);
 126
 127         schema_info = data_blob_hex_string(pfm.ctr.dsdb.mappings, schemaInfo);
 128         W_ERROR_HAVE_NO_MEMORY(schema_info);
 129
 130         pfm.ctr.dsdb.mappings[pfm.ctr.dsdb.num_mappings - 1].id_prefix          = 0;
 131         pfm.ctr.dsdb.mappings[pfm.ctr.dsdb.num_mappings - 1].oid.__ndr_size     = schemaInfo->length;
 132         pfm.ctr.dsdb.mappings[pfm.ctr.dsdb.num_mappings - 1].oid.oid            = schema_info;
 133
 134         /* call the drsuapi version */
 135         status = dsdb_load_oid_mappings_drsuapi(schema, &pfm.ctr.dsdb);
 136         talloc_free(mem_ctx);
 137
 138         W_ERROR_NOT_OK_RETURN(status);
 139
 140         return WERR_OK;
 141 }
 142
 143 WERROR dsdb_get_oid_mappings_drsuapi(const struct dsdb_schema *schema,
 144                                      bool include_schema_info,
 145                                      TALLOC_CTX *mem_ctx,
 146                                      struct drsuapi_DsReplicaOIDMapping_Ctr **_ctr)
 147 {
 148         struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
 149         uint32_t i;
 150
 151         ctr = talloc(mem_ctx, struct drsuapi_DsReplicaOIDMapping_Ctr);
 152         W_ERROR_HAVE_NO_MEMORY(ctr);
 153
 154         ctr->num_mappings       = schema->num_prefixes;
 155         if (include_schema_info) ctr->num_mappings++;
 156         ctr->mappings = talloc_array(schema, struct drsuapi_DsReplicaOIDMapping, ctr->num_mappings);
 157         W_ERROR_HAVE_NO_MEMORY(ctr->mappings);
 158
 159         for (i=0; i < schema->num_prefixes; i++) {
 160                 ctr->mappings[i].id_prefix      = schema->prefixes[i].id>>16;
 161                 ctr->mappings[i].oid.oid        = talloc_strndup(ctr->mappings,
 162                                                                  schema->prefixes[i].oid,
 163                                                                  schema->prefixes[i].oid_len - 1);
 164                 W_ERROR_HAVE_NO_MEMORY(ctr->mappings[i].oid.oid);
 165         }
 166
 167         if (include_schema_info) {
 168                 ctr->mappings[i].id_prefix      = 0;
 169                 ctr->mappings[i].oid.oid        = talloc_strdup(ctr->mappings,
 170                                                                 schema->schema_info);
 171                 W_ERROR_HAVE_NO_MEMORY(ctr->mappings[i].oid.oid);
 172         }
 173
 174         *_ctr = ctr;
 175         return WERR_OK;
 176 }
 177
 178 WERROR dsdb_get_oid_mappings_ldb(const struct dsdb_schema *schema,
 179                                  TALLOC_CTX *mem_ctx,
 180                                  struct ldb_val *prefixMap,
 181                                  struct ldb_val *schemaInfo)
 182 {
 183         WERROR status;
 184         enum ndr_err_code ndr_err;
 185         struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
 186         struct prefixMapBlob pfm;
 187
 188         status = dsdb_get_oid_mappings_drsuapi(schema, false, mem_ctx, &ctr);
 189         W_ERROR_NOT_OK_RETURN(status);
 190
 191         pfm.version     = PREFIX_MAP_VERSION_DSDB;
 192         pfm.reserved    = 0;
 193         pfm.ctr.dsdb    = *ctr;
 194
 195         ndr_err = ndr_push_struct_blob(prefixMap, mem_ctx, schema->iconv_convenience, &pfm, (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 196         talloc_free(ctr);
 197         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 198                 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
 199                 return ntstatus_to_werror(nt_status);
 200         }
 201
 202         *schemaInfo = strhex_to_data_blob(mem_ctx, schema->schema_info);
 203         W_ERROR_HAVE_NO_MEMORY(schemaInfo->data);
 204
 205         return WERR_OK;
 206 }
 207
 208 WERROR dsdb_verify_oid_mappings_drsuapi(const struct dsdb_schema *schema, const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr)
 209 {
 210         uint32_t i,j;
 211
 212         for (i=0; i < ctr->num_mappings; i++) {
 213                 if (ctr->mappings[i].oid.oid == NULL) {
 214                         return WERR_INVALID_PARAM;
 215                 }
 216
 217                 if (strncasecmp(ctr->mappings[i].oid.oid, "ff", 2) == 0) {
 218                         if (ctr->mappings[i].id_prefix != 0) {
 219                                 return WERR_INVALID_PARAM;
 220                         }
 221
 222                         /* the magic value should be in the last array member */
 223                         if (i != (ctr->num_mappings - 1)) {
 224                                 return WERR_INVALID_PARAM;
 225                         }
 226
 227                         if (ctr->mappings[i].oid.__ndr_size != 21) {
 228                                 return WERR_INVALID_PARAM;
 229                         }
 230
 231                         if (strcasecmp(schema->schema_info, ctr->mappings[i].oid.oid) != 0) {
 232                                 return WERR_DS_DRA_SCHEMA_MISMATCH;
 233                         }
 234                 } else {
 235                         /* the last array member should contain the magic value not a oid */
 236                         if (i == (ctr->num_mappings - 1)) {
 237                                 return WERR_INVALID_PARAM;
 238                         }
 239
 240                         for (j=0; j < schema->num_prefixes; j++) {
 241                                 size_t oid_len;
 242                                 if (schema->prefixes[j].id != (ctr->mappings[i].id_prefix<<16)) {
 243                                         continue;
 244                                 }
 245
 246                                 oid_len = strlen(ctr->mappings[i].oid.oid);
 247
 248                                 if (oid_len != (schema->prefixes[j].oid_len - 1)) {
 249                                         return WERR_DS_DRA_SCHEMA_MISMATCH;
 250                                 }
 251
 252                                 if (strncmp(ctr->mappings[i].oid.oid, schema->prefixes[j].oid, oid_len) != 0) {
 253                                         return WERR_DS_DRA_SCHEMA_MISMATCH;
 254                                 }
 255
 256                                 break;
 257                         }
 258
 259                         if (j == schema->num_prefixes) {
 260                                 return WERR_DS_DRA_SCHEMA_MISMATCH;
 261                         }
 262                 }
 263         }
 264
 265         return WERR_OK;
 266 }
 267
 268 WERROR dsdb_map_oid2int(const struct dsdb_schema *schema, const char *in, uint32_t *out)
 269 {
 270         return dsdb_find_prefix_for_oid(schema->num_prefixes, schema->prefixes, in, out);
 271 }
 272
 273
 274 WERROR dsdb_map_int2oid(const struct dsdb_schema *schema, uint32_t in, TALLOC_CTX *mem_ctx, const char **out)
 275 {
 276         uint32_t i;
 277
 278         for (i=0; i < schema->num_prefixes; i++) {
 279                 const char *val;
 280                 if (schema->prefixes[i].id != (in & 0xFFFF0000)) {
 281                         continue;
 282                 }
 283
 284                 val = talloc_asprintf(mem_ctx, "%s%u",
 285                                       schema->prefixes[i].oid,
 286                                       in & 0xFFFF);
 287                 W_ERROR_HAVE_NO_MEMORY(val);
 288
 289                 *out = val;
 290                 return WERR_OK;
 291         }
 292
 293         return WERR_DS_NO_MSDS_INTID;
 294 }
 295
 296 /*
 297  * this function is called from within a ldb transaction from the schema_fsmo module
 298  */
 299 WERROR dsdb_create_prefix_mapping(struct ldb_context *ldb, struct dsdb_schema *schema, const char *full_oid)
 300 {
 301         WERROR status;
 302         uint32_t num_prefixes;
 303         struct dsdb_schema_oid_prefix *prefixes;
 304         TALLOC_CTX *mem_ctx;
 305         uint32_t out;
 306
 307         mem_ctx = talloc_new(ldb);
 308         W_ERROR_HAVE_NO_MEMORY(mem_ctx);
 309
 310         /* Read prefixes from disk*/
 311         status = dsdb_read_prefixes_from_ldb( mem_ctx, ldb, &num_prefixes, &prefixes );
 312         if (!W_ERROR_IS_OK(status)) {
 313                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_read_prefixes_from_ldb: %s\n",
 314                         win_errstr(status)));
 315                 talloc_free(mem_ctx);
 316                 return status;
 317         }
 318
 319         /* Check if there is a prefix for the oid in the prefixes array*/
 320         status = dsdb_find_prefix_for_oid( num_prefixes, prefixes, full_oid, &out );
 321         if (W_ERROR_IS_OK(status)) {
 322                 /* prefix found*/
 323                 talloc_free(mem_ctx);
 324                 return status;
 325         } else if (!W_ERROR_EQUAL(WERR_DS_NO_MSDS_INTID, status)) {
 326                 /* error */
 327                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_find_prefix_for_oid: %s\n",
 328                         win_errstr(status)));
 329                 talloc_free(mem_ctx);
 330                 return status;
 331         }
 332
 333         /* Create the new mapping for the prefix of full_oid */
 334         status = dsdb_prefix_map_update(mem_ctx, &num_prefixes, &prefixes, full_oid);
 335         if (!W_ERROR_IS_OK(status)) {
 336                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_prefix_map_update: %s\n",
 337                         win_errstr(status)));
 338                 talloc_free(mem_ctx);
 339                 return status;
 340         }
 341
 342         /* Update prefixMap in ldb*/
 343         status = dsdb_write_prefixes_to_ldb(mem_ctx, ldb, num_prefixes, prefixes);
 344         if (!W_ERROR_IS_OK(status)) {
 345                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_write_prefixes_to_ldb: %s\n",
 346                         win_errstr(status)));
 347                 talloc_free(mem_ctx);
 348                 return status;
 349         }
 350
 351         talloc_free(mem_ctx);
 352         return status;
 353 }
 354
 355 WERROR dsdb_prefix_map_update(TALLOC_CTX *mem_ctx, uint32_t *num_prefixes, struct dsdb_schema_oid_prefix **prefixes, const char *oid)
 356 {
 357         uint32_t new_num_prefixes, index_new_prefix, new_entry_id;
 358         const char* lastDotOffset;
 359         size_t size;
 360
 361         new_num_prefixes = *num_prefixes + 1;
 362         index_new_prefix = *num_prefixes;
 363
 364         /*
 365          * this is the algorithm we use to create new mappings for now
 366          *
 367          * TODO: find what algorithm windows use
 368          */
 369         new_entry_id = (*num_prefixes)<<16;
 370
 371         /* Extract the prefix from the oid*/
 372         lastDotOffset = strrchr(oid, '.');
 373         if (lastDotOffset == NULL) {
 374                 DEBUG(0,("dsdb_prefix_map_update: failed to find the last dot\n"));
 375                 return WERR_NOT_FOUND;
 376         }
 377
 378         /* Calculate the size of the remainig string that should be the prefix of it */
 379         size = strlen(oid) - strlen(lastDotOffset);
 380         if (size <= 0) {
 381                 DEBUG(0,("dsdb_prefix_map_update: size of the remaining string invalid\n"));
 382                 return WERR_FOOBAR;
 383         }
 384         /* Add one because we need to copy the dot */
 385         size += 1;
 386
 387         /* Create a spot in the prefixMap for one more prefix*/
 388         (*prefixes) = talloc_realloc(mem_ctx, *prefixes, struct dsdb_schema_oid_prefix, new_num_prefixes);
 389         W_ERROR_HAVE_NO_MEMORY(*prefixes);
 390
 391         /* Add the new prefix entry*/
 392         (*prefixes)[index_new_prefix].id = new_entry_id;
 393         (*prefixes)[index_new_prefix].oid = talloc_strndup(mem_ctx, oid, size);
 394         (*prefixes)[index_new_prefix].oid_len = strlen((*prefixes)[index_new_prefix].oid);
 395
 396         /* Increase num_prefixes because new prefix has been added */
 397         ++(*num_prefixes);
 398
 399         return WERR_OK;
 400 }
 401
 402 WERROR dsdb_find_prefix_for_oid(uint32_t num_prefixes, const struct dsdb_schema_oid_prefix *prefixes, const char *in, uint32_t *out)
 403 {
 404         uint32_t i;
 405
 406         for (i=0; i < num_prefixes; i++) {
 407                 const char *val_str;
 408                 char *end_str;
 409                 unsigned val;
 410
 411                 if (strncmp(prefixes[i].oid, in, prefixes[i].oid_len) != 0) {
 412                         continue;
 413                 }
 414
 415                 val_str = in + prefixes[i].oid_len;
 416                 end_str = NULL;
 417                 errno = 0;
 418
 419                 if (val_str[0] == '\0') {
 420                         return WERR_INVALID_PARAM;
 421                 }
 422
 423                 /* two '.' chars are invalid */
 424                 if (val_str[0] == '.') {
 425                         return WERR_INVALID_PARAM;
 426                 }
 427
 428                 val = strtoul(val_str, &end_str, 10);
 429                 if (end_str[0] == '.' && end_str[1] != '\0') {
 430                         /*
 431                          * if it's a '.' and not the last char
 432                          * then maybe an other mapping apply
 433                          */
 434                         continue;
 435                 } else if (end_str[0] != '\0') {
 436                         return WERR_INVALID_PARAM;
 437                 } else if (val > 0xFFFF) {
 438                         return WERR_INVALID_PARAM;
 439                 }
 440
 441                 *out = prefixes[i].id | val;
 442                 return WERR_OK;
 443         }
 444
 445         return WERR_DS_NO_MSDS_INTID;
 446 }
 447
 448 WERROR dsdb_write_prefixes_to_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 449                                   uint32_t num_prefixes,
 450                                   const struct dsdb_schema_oid_prefix *prefixes)
 451 {
 452         struct ldb_message msg;
 453         struct ldb_dn *schema_dn;
 454         struct ldb_message_element el;
 455         struct prefixMapBlob pm;
 456         struct ldb_val ndr_blob;
 457         enum ndr_err_code ndr_err;
 458         uint32_t i;
 459         int ret;
 460
 461         schema_dn = samdb_schema_dn(ldb);
 462         if (!schema_dn) {
 463                 DEBUG(0,("dsdb_write_prefixes_to_ldb: no schema dn present\n"));
 464                 return WERR_FOOBAR;
 465         }
 466
 467         pm.version                      = PREFIX_MAP_VERSION_DSDB;
 468         pm.ctr.dsdb.num_mappings        = num_prefixes;
 469         pm.ctr.dsdb.mappings            = talloc_array(mem_ctx,
 470                                                 struct drsuapi_DsReplicaOIDMapping,
 471                                                 pm.ctr.dsdb.num_mappings);
 472         if (!pm.ctr.dsdb.mappings) {
 473                 return WERR_NOMEM;
 474         }
 475
 476         for (i=0; i < num_prefixes; i++) {
 477                 pm.ctr.dsdb.mappings[i].id_prefix = prefixes[i].id>>16;
 478                 pm.ctr.dsdb.mappings[i].oid.oid = talloc_strdup(pm.ctr.dsdb.mappings, prefixes[i].oid);
 479         }
 480
 481         ndr_err = ndr_push_struct_blob(&ndr_blob, ldb,
 482                                        lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 483                                        &pm,
 484                                        (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 485         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 486                 return WERR_FOOBAR;
 487         }
 488
 489         el.num_values = 1;
 490         el.values = &ndr_blob;
 491         el.flags = LDB_FLAG_MOD_REPLACE;
 492         el.name = talloc_strdup(mem_ctx, "prefixMap");
 493
 494         msg.dn = ldb_dn_copy(mem_ctx, schema_dn);
 495         msg.num_elements = 1;
 496         msg.elements = &el;
 497
 498         ret = ldb_modify( ldb, &msg );
 499         if (ret != 0) {
 500                 DEBUG(0,("dsdb_write_prefixes_to_ldb: ldb_modify failed\n"));
 501                 return WERR_FOOBAR;
 502         }
 503
 504         return WERR_OK;
 505 }
 506
 507 WERROR dsdb_read_prefixes_from_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, uint32_t* num_prefixes, struct dsdb_schema_oid_prefix **prefixes)
 508 {
 509         struct prefixMapBlob *blob;
 510         enum ndr_err_code ndr_err;
 511         uint32_t i;
 512         const struct ldb_val *prefix_val;
 513         struct ldb_dn *schema_dn;
 514         struct ldb_result *schema_res;
 515         int ret;
 516         static const char *schema_attrs[] = {
 517                 "prefixMap",
 518                 NULL
 519         };
 520
 521         schema_dn = samdb_schema_dn(ldb);
 522         if (!schema_dn) {
 523                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no schema dn present\n"));
 524                 return WERR_FOOBAR;
 525         }
 526
 527         ret = ldb_search(ldb, mem_ctx, &schema_res, schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
 528         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
 529                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefix map present\n"));
 530                 talloc_free(schema_res);
 531                 return WERR_FOOBAR;
 532         } else if (ret != LDB_SUCCESS) {
 533                 DEBUG(0,("dsdb_read_prefixes_from_ldb: failed to search the schema head\n"));
 534                 talloc_free(schema_res);
 535                 return WERR_FOOBAR;
 536         }
 537
 538         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 539         if (!prefix_val) {
 540                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefixMap attribute found\n"));
 541                 talloc_free(schema_res);
 542                 return WERR_FOOBAR;
 543         }
 544
 545         blob = talloc(mem_ctx, struct prefixMapBlob);
 546         W_ERROR_HAVE_NO_MEMORY(blob);
 547
 548         ndr_err = ndr_pull_struct_blob(prefix_val, blob,
 549                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 550                                            blob,
 551                                            (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 552         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 553                 DEBUG(0,("dsdb_read_prefixes_from_ldb: ndr_pull_struct_blob failed\n"));
 554                 talloc_free(blob);
 555                 talloc_free(schema_res);
 556                 return WERR_FOOBAR;
 557         }
 558
 559         talloc_free(schema_res);
 560
 561         if (blob->version != PREFIX_MAP_VERSION_DSDB) {
 562                 DEBUG(0,("dsdb_read_prefixes_from_ldb: blob->version incorect\n"));
 563                 talloc_free(blob);
 564                 return WERR_FOOBAR;
 565         }
 566
 567         *num_prefixes = blob->ctr.dsdb.num_mappings;
 568         *prefixes = talloc_array(mem_ctx, struct dsdb_schema_oid_prefix, *num_prefixes);
 569         if(!(*prefixes)) {
 570                 talloc_free(blob);
 571                 return WERR_NOMEM;
 572         }
 573         for (i=0; i < blob->ctr.dsdb.num_mappings; i++) {
 574                 char *oid;
 575                 (*prefixes)[i].id = blob->ctr.dsdb.mappings[i].id_prefix<<16;
 576                 oid = talloc_strdup(mem_ctx, blob->ctr.dsdb.mappings[i].oid.oid);
 577                 (*prefixes)[i].oid = talloc_asprintf_append(oid, ".");
 578                 (*prefixes)[i].oid_len = strlen(blob->ctr.dsdb.mappings[i].oid.oid);
 579         }
 580
 581         talloc_free(blob);
 582         return WERR_OK;
 583 }
 584
 585 #define GET_STRING_LDB(msg, attr, mem_ctx, p, elem, strict) do { \
 586         (p)->elem = samdb_result_string(msg, attr, NULL);\
 587         if (strict && (p)->elem == NULL) { \
 588                 d_printf("%s: %s == NULL\n", __location__, attr); \
 589                 return WERR_INVALID_PARAM; \
 590         } \
 591         talloc_steal(mem_ctx, (p)->elem); \
 592 } while (0)
 593
 594 #define GET_STRING_LIST_LDB(msg, attr, mem_ctx, p, elem, strict) do {   \
 595         int get_string_list_counter;                                    \
 596         struct ldb_message_element *get_string_list_el = ldb_msg_find_element(msg, attr); \
 597         if (get_string_list_el == NULL) {                               \
 598                 if (strict) {                                           \
 599                         d_printf("%s: %s == NULL\n", __location__, attr); \
 600                         return WERR_INVALID_PARAM;                      \
 601                 } else {                                                \
 602                         (p)->elem = NULL;                               \
 603                         break;                                          \
 604                 }                                                       \
 605         }                                                               \
 606         (p)->elem = talloc_array(mem_ctx, const char *, get_string_list_el->num_values + 1); \
 607         for (get_string_list_counter=0;                                 \
 608              get_string_list_counter < get_string_list_el->num_values;  \
 609              get_string_list_counter++) {                               \
 610                 (p)->elem[get_string_list_counter] = talloc_strndup((p)->elem, \
 611                                                                     (const char *)get_string_list_el->values[get_string_list_counter].data, \
 612                                                                     get_string_list_el->values[get_string_list_counter].length); \
 613                 if (!(p)->elem[get_string_list_counter]) {              \
 614                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 615                         return WERR_NOMEM;                              \
 616                 }                                                       \
 617                 (p)->elem[get_string_list_counter+1] = NULL;            \
 618         }                                                               \
 619         talloc_steal(mem_ctx, (p)->elem);                               \
 620 } while (0)
 621
 622 #define GET_BOOL_LDB(msg, attr, p, elem, strict) do { \
 623         const char *str; \
 624         str = samdb_result_string(msg, attr, NULL);\
 625         if (str == NULL) { \
 626                 if (strict) { \
 627                         d_printf("%s: %s == NULL\n", __location__, attr); \
 628                         return WERR_INVALID_PARAM; \
 629                 } else { \
 630                         (p)->elem = false; \
 631                 } \
 632         } else if (strcasecmp("TRUE", str) == 0) { \
 633                 (p)->elem = true; \
 634         } else if (strcasecmp("FALSE", str) == 0) { \
 635                 (p)->elem = false; \
 636         } else { \
 637                 d_printf("%s: %s == %s\n", __location__, attr, str); \
 638                 return WERR_INVALID_PARAM; \
 639         } \
 640 } while (0)
 641
 642 #define GET_UINT32_LDB(msg, attr, p, elem) do { \
 643         (p)->elem = samdb_result_uint(msg, attr, 0);\
 644 } while (0)
 645
 646 #define GET_GUID_LDB(msg, attr, p, elem) do { \
 647         (p)->elem = samdb_result_guid(msg, attr);\
 648 } while (0)
 649
 650 #define GET_BLOB_LDB(msg, attr, mem_ctx, p, elem) do { \
 651         const struct ldb_val *_val;\
 652         _val = ldb_msg_find_ldb_val(msg, attr);\
 653         if (_val) {\
 654                 (p)->elem = *_val;\
 655                 talloc_steal(mem_ctx, (p)->elem.data);\
 656         } else {\
 657                 ZERO_STRUCT((p)->elem);\
 658         }\
 659 } while (0)
 660
 661 WERROR dsdb_attribute_from_ldb(const struct dsdb_schema *schema,
 662                                struct ldb_message *msg,
 663                                TALLOC_CTX *mem_ctx,
 664                                struct dsdb_attribute *attr)
 665 {
 666         WERROR status;
 667
 668         GET_STRING_LDB(msg, "cn", mem_ctx, attr, cn, false);
 669         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
 670         GET_STRING_LDB(msg, "attributeID", mem_ctx, attr, attributeID_oid, true);
 671         if (schema->num_prefixes == 0) {
 672                 /* set an invalid value */
 673                 attr->attributeID_id = 0xFFFFFFFF;
 674         } else {
 675                 status = dsdb_map_oid2int(schema, attr->attributeID_oid, &attr->attributeID_id);
 676                 if (!W_ERROR_IS_OK(status)) {
 677                         DEBUG(0,("%s: '%s': unable to map attributeID %s: %s\n",
 678                                 __location__, attr->lDAPDisplayName, attr->attributeID_oid,
 679                                 win_errstr(status)));
 680                         return status;
 681                 }
 682         }
 683         GET_GUID_LDB(msg, "schemaIDGUID", attr, schemaIDGUID);
 684         GET_UINT32_LDB(msg, "mAPIID", attr, mAPIID);
 685
 686         GET_GUID_LDB(msg, "attributeSecurityGUID", attr, attributeSecurityGUID);
 687
 688         GET_UINT32_LDB(msg, "searchFlags", attr, searchFlags);
 689         GET_UINT32_LDB(msg, "systemFlags", attr, systemFlags);
 690         GET_BOOL_LDB(msg, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
 691         GET_UINT32_LDB(msg, "linkID", attr, linkID);
 692
 693         GET_STRING_LDB(msg, "attributeSyntax", mem_ctx, attr, attributeSyntax_oid, true);
 694         if (schema->num_prefixes == 0) {
 695                 /* set an invalid value */
 696                 attr->attributeSyntax_id = 0xFFFFFFFF;
 697         } else {
 698                 status = dsdb_map_oid2int(schema, attr->attributeSyntax_oid, &attr->attributeSyntax_id);
 699                 if (!W_ERROR_IS_OK(status)) {
 700                         DEBUG(0,("%s: '%s': unable to map attributeSyntax_ %s: %s\n",
 701                                 __location__, attr->lDAPDisplayName, attr->attributeSyntax_oid,
 702                                 win_errstr(status)));
 703                         return status;
 704                 }
 705         }
 706         GET_UINT32_LDB(msg, "oMSyntax", attr, oMSyntax);
 707         GET_BLOB_LDB(msg, "oMObjectClass", mem_ctx, attr, oMObjectClass);
 708
 709         GET_BOOL_LDB(msg, "isSingleValued", attr, isSingleValued, true);
 710         GET_UINT32_LDB(msg, "rangeLower", attr, rangeLower);
 711         GET_UINT32_LDB(msg, "rangeUpper", attr, rangeUpper);
 712         GET_BOOL_LDB(msg, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
 713
 714         GET_UINT32_LDB(msg, "schemaFlagsEx", attr, schemaFlagsEx);
 715         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
 716
 717         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
 718         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
 719         GET_STRING_LDB(msg, "adminDescription", mem_ctx, attr, adminDescription, false);
 720         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, attr, classDisplayName, false);
 721         GET_BOOL_LDB(msg, "isEphemeral", attr, isEphemeral, false);
 722         GET_BOOL_LDB(msg, "isDefunct", attr, isDefunct, false);
 723         GET_BOOL_LDB(msg, "systemOnly", attr, systemOnly, false);
 724
 725         attr->syntax = dsdb_syntax_for_attribute(attr);
 726         if (!attr->syntax) {
 727                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 728         }
 729
 730         return WERR_OK;
 731 }
 732
 733 WERROR dsdb_class_from_ldb(const struct dsdb_schema *schema,
 734                            struct ldb_message *msg,
 735                            TALLOC_CTX *mem_ctx,
 736                            struct dsdb_class *obj)
 737 {
 738         WERROR status;
 739
 740         GET_STRING_LDB(msg, "cn", mem_ctx, obj, cn, false);
 741         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
 742         GET_STRING_LDB(msg, "governsID", mem_ctx, obj, governsID_oid, true);
 743         if (schema->num_prefixes == 0) {
 744                 /* set an invalid value */
 745                 obj->governsID_id = 0xFFFFFFFF;
 746         } else {
 747                 status = dsdb_map_oid2int(schema, obj->governsID_oid, &obj->governsID_id);
 748                 if (!W_ERROR_IS_OK(status)) {
 749                         DEBUG(0,("%s: '%s': unable to map governsID %s: %s\n",
 750                                 __location__, obj->lDAPDisplayName, obj->governsID_oid,
 751                                 win_errstr(status)));
 752                         return status;
 753                 }
 754         }
 755         GET_GUID_LDB(msg, "schemaIDGUID", obj, schemaIDGUID);
 756
 757         GET_UINT32_LDB(msg, "objectClassCategory", obj, objectClassCategory);
 758         GET_STRING_LDB(msg, "rDNAttID", mem_ctx, obj, rDNAttID, false);
 759         GET_STRING_LDB(msg, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
 760
 761         GET_STRING_LDB(msg, "subClassOf", mem_ctx, obj, subClassOf, true);
 762
 763         GET_STRING_LIST_LDB(msg, "systemAuxiliaryClass", mem_ctx, obj, systemAuxiliaryClass, false);
 764         GET_STRING_LIST_LDB(msg, "auxiliaryClass", mem_ctx, obj, auxiliaryClass, false);
 765
 766         GET_STRING_LIST_LDB(msg, "systemMustContain", mem_ctx, obj, systemMustContain, false);
 767         GET_STRING_LIST_LDB(msg, "systemMayContain", mem_ctx, obj, systemMayContain, false);
 768         GET_STRING_LIST_LDB(msg, "mustContain", mem_ctx, obj, mustContain, false);
 769         GET_STRING_LIST_LDB(msg, "mayContain", mem_ctx, obj, mayContain, false);
 770
 771         GET_STRING_LIST_LDB(msg, "systemPossSuperiors", mem_ctx, obj, systemPossSuperiors, false);
 772         GET_STRING_LIST_LDB(msg, "possSuperiors", mem_ctx, obj, possSuperiors, false);
 773         GET_STRING_LIST_LDB(msg, "possibleInferiors", mem_ctx, obj, possibleInferiors, false);
 774
 775         GET_STRING_LDB(msg, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
 776
 777         GET_UINT32_LDB(msg, "schemaFlagsEx", obj, schemaFlagsEx);
 778         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
 779
 780         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
 781         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
 782         GET_STRING_LDB(msg, "adminDescription", mem_ctx, obj, adminDescription, false);
 783         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, obj, classDisplayName, false);
 784         GET_BOOL_LDB(msg, "defaultHidingValue", obj, defaultHidingValue, false);
 785         GET_BOOL_LDB(msg, "isDefunct", obj, isDefunct, false);
 786         GET_BOOL_LDB(msg, "systemOnly", obj, systemOnly, false);
 787
 788         return WERR_OK;
 789 }
 790
 791 #define dsdb_oom(error_string, mem_ctx) *error_string = talloc_asprintf(mem_ctx, "dsdb out of memory at %s:%d\n", __FILE__, __LINE__)
 792
 793 int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 794                                  struct smb_iconv_convenience *iconv_convenience,
 795                                  struct ldb_result *schema_res,
 796                                  struct ldb_result *attrs_res, struct ldb_result *objectclass_res,
 797                                  struct dsdb_schema **schema_out,
 798                                  char **error_string)
 799 {
 800         WERROR status;
 801         uint32_t i;
 802         const struct ldb_val *prefix_val;
 803         const struct ldb_val *info_val;
 804         struct ldb_val info_val_default;
 805         struct dsdb_schema *schema;
 806
 807         schema = dsdb_new_schema(mem_ctx, iconv_convenience);
 808         if (!schema) {
 809                 dsdb_oom(error_string, mem_ctx);
 810                 return LDB_ERR_OPERATIONS_ERROR;
 811         }
 812
 813         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 814         if (!prefix_val) {
 815                 *error_string = talloc_asprintf(mem_ctx,
 816                                                 "schema_fsmo_init: no prefixMap attribute found");
 817                 return LDB_ERR_CONSTRAINT_VIOLATION;
 818         }
 819         info_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "schemaInfo");
 820         if (!info_val) {
 821                 info_val_default = strhex_to_data_blob(mem_ctx, "FF0000000000000000000000000000000000000000");
 822                 if (!info_val_default.data) {
 823                         dsdb_oom(error_string, mem_ctx);
 824                         return LDB_ERR_OPERATIONS_ERROR;
 825                 }
 826                 info_val = &info_val_default;
 827         }
 828
 829         status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
 830         if (!W_ERROR_IS_OK(status)) {
 831                 *error_string = talloc_asprintf(mem_ctx,
 832                               "schema_fsmo_init: failed to load oid mappings: %s",
 833                               win_errstr(status));
 834                 return LDB_ERR_CONSTRAINT_VIOLATION;
 835         }
 836
 837         for (i=0; i < attrs_res->count; i++) {
 838                 struct dsdb_attribute *sa;
 839
 840                 sa = talloc_zero(schema, struct dsdb_attribute);
 841                 if (!sa) {
 842                         dsdb_oom(error_string, mem_ctx);
 843                         return LDB_ERR_OPERATIONS_ERROR;
 844                 }
 845
 846                 status = dsdb_attribute_from_ldb(schema, attrs_res->msgs[i], sa, sa);
 847                 if (!W_ERROR_IS_OK(status)) {
 848                         *error_string = talloc_asprintf(mem_ctx,
 849                                       "schema_fsmo_init: failed to load attribute definition: %s:%s",
 850                                       ldb_dn_get_linearized(attrs_res->msgs[i]->dn),
 851                                       win_errstr(status));
 852                         return LDB_ERR_CONSTRAINT_VIOLATION;
 853                 }
 854
 855                 DLIST_ADD_END(schema->attributes, sa, struct dsdb_attribute *);
 856         }
 857
 858         for (i=0; i < objectclass_res->count; i++) {
 859                 struct dsdb_class *sc;
 860
 861                 sc = talloc_zero(schema, struct dsdb_class);
 862                 if (!sc) {
 863                         dsdb_oom(error_string, mem_ctx);
 864                         return LDB_ERR_OPERATIONS_ERROR;
 865                 }
 866
 867                 status = dsdb_class_from_ldb(schema, objectclass_res->msgs[i], sc, sc);
 868                 if (!W_ERROR_IS_OK(status)) {
 869                         *error_string = talloc_asprintf(mem_ctx,
 870                                       "schema_fsmo_init: failed to load class definition: %s:%s",
 871                                       ldb_dn_get_linearized(objectclass_res->msgs[i]->dn),
 872                                       win_errstr(status));
 873                         return LDB_ERR_CONSTRAINT_VIOLATION;
 874                 }
 875
 876                 DLIST_ADD_END(schema->classes, sc, struct dsdb_class *);
 877         }
 878
 879         schema->fsmo.master_dn = ldb_msg_find_attr_as_dn(ldb, schema, schema_res->msgs[0], "fSMORoleOwner");
 880         if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), schema->fsmo.master_dn) == 0) {
 881                 schema->fsmo.we_are_master = true;
 882         } else {
 883                 schema->fsmo.we_are_master = false;
 884         }
 885
 886         DEBUG(5, ("schema_fsmo_init: we are master: %s\n",
 887                   (schema->fsmo.we_are_master?"yes":"no")));
 888
 889         *schema_out = schema;
 890         return LDB_SUCCESS;
 891 }
 892
 893 /* This recursive load of the objectClasses presumes that they
 894  * everything is in a strict subClassOf hirarchy.
 895  *
 896  * We load this in order so we produce certain outputs (such as the
 897  * exported schema for openldap, and sorted objectClass attribute) 'in
 898  * order' */
 899
 900 static int fetch_oc_recursive(struct ldb_context *ldb, struct ldb_dn *schemadn,
 901                               TALLOC_CTX *mem_ctx,
 902                               struct ldb_result *search_from,
 903                               struct ldb_result *res_list)
 904 {
 905         int i;
 906         int ret = 0;
 907         for (i=0; i < search_from->count; i++) {
 908                 struct ldb_result *res;
 909                 const char *name = ldb_msg_find_attr_as_string(search_from->msgs[i],
 910                                                                "lDAPDisplayname", NULL);
 911
 912                 ret = ldb_search(ldb, mem_ctx, &res,
 913                                         schemadn, LDB_SCOPE_SUBTREE, NULL,
 914                                         "(&(&(objectClass=classSchema)(subClassOf=%s))(!(lDAPDisplayName=%s)))",
 915                                         name, name);
 916                 if (ret != LDB_SUCCESS) {
 917                         return ret;
 918                 }
 919
 920                 res_list->msgs = talloc_realloc(res_list, res_list->msgs,
 921                                                 struct ldb_message *, res_list->count + 2);
 922                 if (!res_list->msgs) {
 923                         return LDB_ERR_OPERATIONS_ERROR;
 924                 }
 925                 res_list->msgs[res_list->count] = talloc_move(res_list,
 926                                                               &search_from->msgs[i]);
 927                 res_list->count++;
 928                 res_list->msgs[res_list->count] = NULL;
 929
 930                 if (res->count > 0) {
 931                         ret = fetch_oc_recursive(ldb, schemadn, mem_ctx, res, res_list);
 932                 }
 933                 if (ret != LDB_SUCCESS) {
 934                         return ret;
 935                 }
 936         }
 937         return ret;
 938 }
 939
 940 static int fetch_objectclass_schema(struct ldb_context *ldb, struct ldb_dn *schemadn,
 941                                     TALLOC_CTX *mem_ctx,
 942                                     struct ldb_result **objectclasses_res,
 943                                     char **error_string)
 944 {
 945         TALLOC_CTX *local_ctx = talloc_new(mem_ctx);
 946         struct ldb_result *top_res, *ret_res;
 947         int ret;
 948         if (!local_ctx) {
 949                 return LDB_ERR_OPERATIONS_ERROR;
 950         }
 951
 952         /* Download 'top' */
 953         ret = ldb_search(ldb, local_ctx, &top_res,
 954                          schemadn, LDB_SCOPE_SUBTREE, NULL,
 955                          "(&(objectClass=classSchema)(lDAPDisplayName=top))");
 956         if (ret != LDB_SUCCESS) {
 957                 *error_string = talloc_asprintf(mem_ctx,
 958                                                 "dsdb_schema: failed to search for top classSchema object: %s",
 959                                                 ldb_errstring(ldb));
 960                 return ret;
 961         }
 962
 963         if (top_res->count != 1) {
 964                 *error_string = talloc_asprintf(mem_ctx,
 965                                                 "dsdb_schema: failed to find top classSchema object");
 966                 return LDB_ERR_NO_SUCH_OBJECT;
 967         }
 968
 969         ret_res = talloc_zero(local_ctx, struct ldb_result);
 970         if (!ret_res) {
 971                 return LDB_ERR_OPERATIONS_ERROR;
 972         }
 973
 974         ret = fetch_oc_recursive(ldb, schemadn, local_ctx, top_res, ret_res);
 975
 976         if (ret != LDB_SUCCESS) {
 977                 return ret;
 978         }
 979
 980         *objectclasses_res = talloc_move(mem_ctx, &ret_res);
 981         return ret;
 982 }
 983
 984 int dsdb_schema_from_schema_dn(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 985                                struct smb_iconv_convenience *iconv_convenience,
 986                                struct ldb_dn *schema_dn,
 987                                struct dsdb_schema **schema,
 988                                char **error_string_out)
 989 {
 990         TALLOC_CTX *tmp_ctx;
 991         char *error_string;
 992         int ret;
 993
 994         struct ldb_result *schema_res;
 995         struct ldb_result *a_res;
 996         struct ldb_result *c_res;
 997         static const char *schema_attrs[] = {
 998                 "prefixMap",
 999                 "schemaInfo",
1000                 "fSMORoleOwner",
1001                 NULL
1002         };
1003
1004         tmp_ctx = talloc_new(mem_ctx);
1005         if (!tmp_ctx) {
1006                 dsdb_oom(error_string_out, mem_ctx);
1007                 return LDB_ERR_OPERATIONS_ERROR;
1008         }
1009
1010         /*
1011          * setup the prefix mappings and schema info
1012          */
1013         ret = ldb_search(ldb, tmp_ctx, &schema_res,
1014                          schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
1015         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
1016                 talloc_free(tmp_ctx);
1017                 return ret;
1018         } else if (ret != LDB_SUCCESS) {
1019                 *error_string_out = talloc_asprintf(mem_ctx,
1020                                        "dsdb_schema: failed to search the schema head: %s",
1021                                        ldb_errstring(ldb));
1022                 talloc_free(tmp_ctx);
1023                 return ret;
1024         }
1025         if (schema_res->count != 1) {
1026                 *error_string_out = talloc_asprintf(mem_ctx,
1027                               "dsdb_schema: [%u] schema heads found on a base search",
1028                               schema_res->count);
1029                 talloc_free(tmp_ctx);
1030                 return LDB_ERR_CONSTRAINT_VIOLATION;
1031         }
1032
1033         /*
1034          * load the attribute definitions
1035          */
1036         ret = ldb_search(ldb, tmp_ctx, &a_res,
1037                          schema_dn, LDB_SCOPE_ONELEVEL, NULL,
1038                          "(objectClass=attributeSchema)");
1039         if (ret != LDB_SUCCESS) {
1040                 *error_string_out = talloc_asprintf(mem_ctx,
1041                                        "dsdb_schema: failed to search attributeSchema objects: %s",
1042                                        ldb_errstring(ldb));
1043                 talloc_free(tmp_ctx);
1044                 return ret;
1045         }
1046
1047         /*
1048          * load the objectClass definitions
1049          */
1050         ret = fetch_objectclass_schema(ldb, schema_dn, tmp_ctx, &c_res, &error_string);
1051         if (ret != LDB_SUCCESS) {
1052                 *error_string_out = talloc_asprintf(mem_ctx,
1053                                        "Failed to fetch objectClass schema elements: %s", error_string);
1054                 talloc_free(tmp_ctx);
1055                 return ret;
1056         }
1057
1058         ret = dsdb_schema_from_ldb_results(tmp_ctx, ldb,
1059                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
1060                                            schema_res, a_res, c_res, schema, &error_string);
1061         if (ret != LDB_SUCCESS) {
1062                 *error_string_out = talloc_asprintf(mem_ctx,
1063                                                     "dsdb_schema load failed: %s",
1064                                                     error_string);
1065                 talloc_free(tmp_ctx);
1066                 return ret;
1067         }
1068         talloc_steal(mem_ctx, *schema);
1069         talloc_free(tmp_ctx);
1070
1071         return LDB_SUCCESS;
1072 }
1073
1074
1075 static const struct {
1076         const char *name;
1077         const char *oid;
1078 } name_mappings[] = {
1079         { "cn",                                 "2.5.4.3" },
1080         { "name",                               "1.2.840.113556.1.4.1" },
1081         { "lDAPDisplayName",                    "1.2.840.113556.1.2.460" },
1082         { "attributeID",                        "1.2.840.113556.1.2.30" },
1083         { "schemaIDGUID",                       "1.2.840.113556.1.4.148" },
1084         { "mAPIID",                             "1.2.840.113556.1.2.49" },
1085         { "attributeSecurityGUID",              "1.2.840.113556.1.4.149" },
1086         { "searchFlags",                        "1.2.840.113556.1.2.334" },
1087         { "systemFlags",                        "1.2.840.113556.1.4.375" },
1088         { "isMemberOfPartialAttributeSet",      "1.2.840.113556.1.4.639" },
1089         { "linkID",                             "1.2.840.113556.1.2.50" },
1090         { "attributeSyntax",                    "1.2.840.113556.1.2.32" },
1091         { "oMSyntax",                           "1.2.840.113556.1.2.231" },
1092         { "oMObjectClass",                      "1.2.840.113556.1.2.218" },
1093         { "isSingleValued",                     "1.2.840.113556.1.2.33" },
1094         { "rangeLower",                         "1.2.840.113556.1.2.34" },
1095         { "rangeUpper",                         "1.2.840.113556.1.2.35" },
1096         { "extendedCharsAllowed",               "1.2.840.113556.1.2.380" },
1097         { "schemaFlagsEx",                      "1.2.840.113556.1.4.120" },
1098         { "msDs-Schema-Extensions",             "1.2.840.113556.1.4.1440" },
1099         { "showInAdvancedViewOnly",             "1.2.840.113556.1.2.169" },
1100         { "adminDisplayName",                   "1.2.840.113556.1.2.194" },
1101         { "adminDescription",                   "1.2.840.113556.1.2.226" },
1102         { "classDisplayName",                   "1.2.840.113556.1.4.610" },
1103         { "isEphemeral",                        "1.2.840.113556.1.4.1212" },
1104         { "isDefunct",                          "1.2.840.113556.1.4.661" },
1105         { "systemOnly",                         "1.2.840.113556.1.4.170" },
1106         { "governsID",                          "1.2.840.113556.1.2.22" },
1107         { "objectClassCategory",                "1.2.840.113556.1.2.370" },
1108         { "rDNAttID",                           "1.2.840.113556.1.2.26" },
1109         { "defaultObjectCategory",              "1.2.840.113556.1.4.783" },
1110         { "subClassOf",                         "1.2.840.113556.1.2.21" },
1111         { "systemAuxiliaryClass",               "1.2.840.113556.1.4.198" },
1112         { "systemPossSuperiors",                "1.2.840.113556.1.4.195" },
1113         { "systemMustContain",                  "1.2.840.113556.1.4.197" },
1114         { "systemMayContain",                   "1.2.840.113556.1.4.196" },
1115         { "auxiliaryClass",                     "1.2.840.113556.1.2.351" },
1116         { "possSuperiors",                      "1.2.840.113556.1.2.8" },
1117         { "mustContain",                        "1.2.840.113556.1.2.24" },
1118         { "mayContain",                         "1.2.840.113556.1.2.25" },
1119         { "defaultSecurityDescriptor",          "1.2.840.113556.1.4.224" },
1120         { "defaultHidingValue",                 "1.2.840.113556.1.4.518" },
1121 };
1122
1123 static struct drsuapi_DsReplicaAttribute *dsdb_find_object_attr_name(struct dsdb_schema *schema,
1124                                                                      struct drsuapi_DsReplicaObject *obj,
1125                                                                      const char *name,
1126                                                                      uint32_t *idx)
1127 {
1128         WERROR status;
1129         uint32_t i, id;
1130         const char *oid = NULL;
1131
1132         for(i=0; i < ARRAY_SIZE(name_mappings); i++) {
1133                 if (strcmp(name_mappings[i].name, name) != 0) continue;
1134
1135                 oid = name_mappings[i].oid;
1136                 break;
1137         }
1138
1139         if (!oid) {
1140                 return NULL;
1141         }
1142
1143         status = dsdb_map_oid2int(schema, oid, &id);
1144         if (!W_ERROR_IS_OK(status)) {
1145                 return NULL;
1146         }
1147
1148         for (i=0; i < obj->attribute_ctr.num_attributes; i++) {
1149                 if (obj->attribute_ctr.attributes[i].attid != id) continue;
1150
1151                 if (idx) *idx = i;
1152                 return &obj->attribute_ctr.attributes[i];
1153         }
1154
1155         return NULL;
1156 }
1157
1158 #define GET_STRING_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1159         struct drsuapi_DsReplicaAttribute *_a; \
1160         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1161         if (strict && !_a) { \
1162                 d_printf("%s: %s == NULL\n", __location__, attr); \
1163                 return WERR_INVALID_PARAM; \
1164         } \
1165         if (strict && _a->value_ctr.num_values != 1) { \
1166                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1167                         _a->value_ctr.num_values); \
1168                 return WERR_INVALID_PARAM; \
1169         } \
1170         if (_a && _a->value_ctr.num_values >= 1) { \
1171                 ssize_t _ret; \
1172                 _ret = convert_string_talloc(mem_ctx, s->iconv_convenience, CH_UTF16, CH_UNIX, \
1173                                              _a->value_ctr.values[0].blob->data, \
1174                                              _a->value_ctr.values[0].blob->length, \
1175                                              (void **)discard_const(&(p)->elem)); \
1176                 if (_ret == -1) { \
1177                         DEBUG(0,("%s: invalid data!\n", attr)); \
1178                         dump_data(0, \
1179                                      _a->value_ctr.values[0].blob->data, \
1180                                      _a->value_ctr.values[0].blob->length); \
1181                         return WERR_FOOBAR; \
1182                 } \
1183         } else { \
1184                 (p)->elem = NULL; \
1185         } \
1186 } while (0)
1187
1188 #define GET_DN_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1189         struct drsuapi_DsReplicaAttribute *_a; \
1190         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1191         if (strict && !_a) { \
1192                 d_printf("%s: %s == NULL\n", __location__, attr); \
1193                 return WERR_INVALID_PARAM; \
1194         } \
1195         if (strict && _a->value_ctr.num_values != 1) { \
1196                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1197                         _a->value_ctr.num_values); \
1198                 return WERR_INVALID_PARAM; \
1199         } \
1200         if (strict && !_a->value_ctr.values[0].blob) { \
1201                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1202                 return WERR_INVALID_PARAM; \
1203         } \
1204         if (_a && _a->value_ctr.num_values >= 1 \
1205             && _a->value_ctr.values[0].blob) { \
1206                 struct drsuapi_DsReplicaObjectIdentifier3 _id3; \
1207                 enum ndr_err_code _ndr_err; \
1208                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1209                                                       mem_ctx, s->iconv_convenience, &_id3,\
1210                                                       (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);\
1211                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1212                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1213                         return ntstatus_to_werror(_nt_status); \
1214                 } \
1215                 (p)->elem = _id3.dn; \
1216         } else { \
1217                 (p)->elem = NULL; \
1218         } \
1219 } while (0)
1220
1221 #define GET_BOOL_DS(s, r, attr, p, elem, strict) do { \
1222         struct drsuapi_DsReplicaAttribute *_a; \
1223         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1224         if (strict && !_a) { \
1225                 d_printf("%s: %s == NULL\n", __location__, attr); \
1226                 return WERR_INVALID_PARAM; \
1227         } \
1228         if (strict && _a->value_ctr.num_values != 1) { \
1229                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1230                          (unsigned int)_a->value_ctr.num_values);       \
1231                 return WERR_INVALID_PARAM; \
1232         } \
1233         if (strict && !_a->value_ctr.values[0].blob) { \
1234                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1235                 return WERR_INVALID_PARAM; \
1236         } \
1237         if (strict && _a->value_ctr.values[0].blob->length != 4) { \
1238                 d_printf("%s: %s length == %u\n", __location__, attr, \
1239                          (unsigned int)_a->value_ctr.values[0].blob->length); \
1240                 return WERR_INVALID_PARAM; \
1241         } \
1242         if (_a && _a->value_ctr.num_values >= 1 \
1243             && _a->value_ctr.values[0].blob \
1244             && _a->value_ctr.values[0].blob->length == 4) { \
1245                 (p)->elem = (IVAL(_a->value_ctr.values[0].blob->data,0)?true:false);\
1246         } else { \
1247                 (p)->elem = false; \
1248         } \
1249 } while (0)
1250
1251 #define GET_UINT32_DS(s, r, attr, p, elem) do { \
1252         struct drsuapi_DsReplicaAttribute *_a; \
1253         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1254         if (_a && _a->value_ctr.num_values >= 1 \
1255             && _a->value_ctr.values[0].blob \
1256             && _a->value_ctr.values[0].blob->length == 4) { \
1257                 (p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1258         } else { \
1259                 (p)->elem = 0; \
1260         } \
1261 } while (0)
1262
1263 #define GET_GUID_DS(s, r, attr, mem_ctx, p, elem) do { \
1264         struct drsuapi_DsReplicaAttribute *_a; \
1265         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1266         if (_a && _a->value_ctr.num_values >= 1 \
1267             && _a->value_ctr.values[0].blob \
1268             && _a->value_ctr.values[0].blob->length == 16) { \
1269                 enum ndr_err_code _ndr_err; \
1270                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1271                                                       mem_ctx, s->iconv_convenience, &(p)->elem, \
1272                                                       (ndr_pull_flags_fn_t)ndr_pull_GUID); \
1273                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1274                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1275                         return ntstatus_to_werror(_nt_status); \
1276                 } \
1277         } else { \
1278                 ZERO_STRUCT((p)->elem);\
1279         } \
1280 } while (0)
1281
1282 #define GET_BLOB_DS(s, r, attr, mem_ctx, p, elem) do { \
1283         struct drsuapi_DsReplicaAttribute *_a; \
1284         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1285         if (_a && _a->value_ctr.num_values >= 1 \
1286             && _a->value_ctr.values[0].blob) { \
1287                 (p)->elem = *_a->value_ctr.values[0].blob;\
1288                 talloc_steal(mem_ctx, (p)->elem.data); \
1289         } else { \
1290                 ZERO_STRUCT((p)->elem);\
1291         }\
1292 } while (0)
1293
1294 WERROR dsdb_attribute_from_drsuapi(struct dsdb_schema *schema,
1295                                    struct drsuapi_DsReplicaObject *r,
1296                                    TALLOC_CTX *mem_ctx,
1297                                    struct dsdb_attribute *attr)
1298 {
1299         WERROR status;
1300
1301         GET_STRING_DS(schema, r, "name", mem_ctx, attr, cn, true);
1302         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
1303         GET_UINT32_DS(schema, r, "attributeID", attr, attributeID_id);
1304         status = dsdb_map_int2oid(schema, attr->attributeID_id, mem_ctx, &attr->attributeID_oid);
1305         if (!W_ERROR_IS_OK(status)) {
1306                 DEBUG(0,("%s: '%s': unable to map attributeID 0x%08X: %s\n",
1307                         __location__, attr->lDAPDisplayName, attr->attributeID_id,
1308                         win_errstr(status)));
1309                 return status;
1310         }
1311         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, attr, schemaIDGUID);
1312         GET_UINT32_DS(schema, r, "mAPIID", attr, mAPIID);
1313
1314         GET_GUID_DS(schema, r, "attributeSecurityGUID", mem_ctx, attr, attributeSecurityGUID);
1315
1316         GET_UINT32_DS(schema, r, "searchFlags", attr, searchFlags);
1317         GET_UINT32_DS(schema, r, "systemFlags", attr, systemFlags);
1318         GET_BOOL_DS(schema, r, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
1319         GET_UINT32_DS(schema, r, "linkID", attr, linkID);
1320
1321         GET_UINT32_DS(schema, r, "attributeSyntax", attr, attributeSyntax_id);
1322         status = dsdb_map_int2oid(schema, attr->attributeSyntax_id, mem_ctx, &attr->attributeSyntax_oid);
1323         if (!W_ERROR_IS_OK(status)) {
1324                 DEBUG(0,("%s: '%s': unable to map attributeSyntax 0x%08X: %s\n",
1325                         __location__, attr->lDAPDisplayName, attr->attributeSyntax_id,
1326                         win_errstr(status)));
1327                 return status;
1328         }
1329         GET_UINT32_DS(schema, r, "oMSyntax", attr, oMSyntax);
1330         GET_BLOB_DS(schema, r, "oMObjectClass", mem_ctx, attr, oMObjectClass);
1331
1332         GET_BOOL_DS(schema, r, "isSingleValued", attr, isSingleValued, true);
1333         GET_UINT32_DS(schema, r, "rangeLower", attr, rangeLower);
1334         GET_UINT32_DS(schema, r, "rangeUpper", attr, rangeUpper);
1335         GET_BOOL_DS(schema, r, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
1336
1337         GET_UINT32_DS(schema, r, "schemaFlagsEx", attr, schemaFlagsEx);
1338         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
1339
1340         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
1341         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
1342         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, attr, adminDescription, false);
1343         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, attr, classDisplayName, false);
1344         GET_BOOL_DS(schema, r, "isEphemeral", attr, isEphemeral, false);
1345         GET_BOOL_DS(schema, r, "isDefunct", attr, isDefunct, false);
1346         GET_BOOL_DS(schema, r, "systemOnly", attr, systemOnly, false);
1347
1348         attr->syntax = dsdb_syntax_for_attribute(attr);
1349         if (!attr->syntax) {
1350                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
1351         }
1352
1353         return WERR_OK;
1354 }
1355
1356 WERROR dsdb_class_from_drsuapi(struct dsdb_schema *schema,
1357                                struct drsuapi_DsReplicaObject *r,
1358                                TALLOC_CTX *mem_ctx,
1359                                struct dsdb_class *obj)
1360 {
1361         WERROR status;
1362
1363         GET_STRING_DS(schema, r, "name", mem_ctx, obj, cn, true);
1364         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
1365         GET_UINT32_DS(schema, r, "governsID", obj, governsID_id);
1366         status = dsdb_map_int2oid(schema, obj->governsID_id, mem_ctx, &obj->governsID_oid);
1367         if (!W_ERROR_IS_OK(status)) {
1368                 DEBUG(0,("%s: '%s': unable to map governsID 0x%08X: %s\n",
1369                         __location__, obj->lDAPDisplayName, obj->governsID_id,
1370                         win_errstr(status)));
1371                 return status;
1372         }
1373         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, obj, schemaIDGUID);
1374
1375         GET_UINT32_DS(schema, r, "objectClassCategory", obj, objectClassCategory);
1376         GET_STRING_DS(schema, r, "rDNAttID", mem_ctx, obj, rDNAttID, false);
1377         GET_DN_DS(schema, r, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
1378
1379         GET_STRING_DS(schema, r, "subClassOf", mem_ctx, obj, subClassOf, true);
1380
1381         obj->systemAuxiliaryClass       = NULL;
1382         obj->systemPossSuperiors        = NULL;
1383         obj->systemMustContain          = NULL;
1384         obj->systemMayContain           = NULL;
1385
1386         obj->auxiliaryClass             = NULL;
1387         obj->possSuperiors              = NULL;
1388         obj->mustContain                = NULL;
1389         obj->mayContain                 = NULL;
1390
1391         obj->possibleInferiors          = NULL;
1392
1393         GET_STRING_DS(schema, r, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
1394
1395         GET_UINT32_DS(schema, r, "schemaFlagsEx", obj, schemaFlagsEx);
1396         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
1397
1398         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
1399         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
1400         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, obj, adminDescription, false);
1401         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, obj, classDisplayName, false);
1402         GET_BOOL_DS(schema, r, "defaultHidingValue", obj, defaultHidingValue, false);
1403         GET_BOOL_DS(schema, r, "isDefunct", obj, isDefunct, false);
1404         GET_BOOL_DS(schema, r, "systemOnly", obj, systemOnly, false);
1405
1406         return WERR_OK;
1407 }
1408