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_UINT32_PTR_LDB(msg, attr, p, elem) do { \
 647         uint64_t _v = samdb_result_uint64(msg, attr, UINT64_MAX);\
 648         if (_v == UINT64_MAX) { \
 649                 (p)->elem = NULL; \
 650         } else if (_v > UINT32_MAX) { \
 651                 d_printf("%s: %s == 0x%llX\n", __location__, \
 652                          attr, (unsigned long long)_v); \
 653                 return WERR_INVALID_PARAM; \
 654         } else { \
 655                 (p)->elem = talloc(mem_ctx, uint32_t); \
 656                 if (!(p)->elem) { \
 657                         d_printf("%s: talloc failed for %s\n", __location__, attr); \
 658                         return WERR_NOMEM; \
 659                 } \
 660                 *(p)->elem = (uint32_t)_v; \
 661         } \
 662 } while (0)
 663
 664 #define GET_GUID_LDB(msg, attr, p, elem) do { \
 665         (p)->elem = samdb_result_guid(msg, attr);\
 666 } while (0)
 667
 668 #define GET_BLOB_LDB(msg, attr, mem_ctx, p, elem) do { \
 669         const struct ldb_val *_val;\
 670         _val = ldb_msg_find_ldb_val(msg, attr);\
 671         if (_val) {\
 672                 (p)->elem = *_val;\
 673                 talloc_steal(mem_ctx, (p)->elem.data);\
 674         } else {\
 675                 ZERO_STRUCT((p)->elem);\
 676         }\
 677 } while (0)
 678
 679 WERROR dsdb_attribute_from_ldb(const struct dsdb_schema *schema,
 680                                struct ldb_message *msg,
 681                                TALLOC_CTX *mem_ctx,
 682                                struct dsdb_attribute *attr)
 683 {
 684         WERROR status;
 685
 686         GET_STRING_LDB(msg, "cn", mem_ctx, attr, cn, false);
 687         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
 688         GET_STRING_LDB(msg, "attributeID", mem_ctx, attr, attributeID_oid, true);
 689         if (schema->num_prefixes == 0) {
 690                 /* set an invalid value */
 691                 attr->attributeID_id = 0xFFFFFFFF;
 692         } else {
 693                 status = dsdb_map_oid2int(schema, attr->attributeID_oid, &attr->attributeID_id);
 694                 if (!W_ERROR_IS_OK(status)) {
 695                         DEBUG(0,("%s: '%s': unable to map attributeID %s: %s\n",
 696                                 __location__, attr->lDAPDisplayName, attr->attributeID_oid,
 697                                 win_errstr(status)));
 698                         return status;
 699                 }
 700         }
 701         GET_GUID_LDB(msg, "schemaIDGUID", attr, schemaIDGUID);
 702         GET_UINT32_LDB(msg, "mAPIID", attr, mAPIID);
 703
 704         GET_GUID_LDB(msg, "attributeSecurityGUID", attr, attributeSecurityGUID);
 705
 706         GET_UINT32_LDB(msg, "searchFlags", attr, searchFlags);
 707         GET_UINT32_LDB(msg, "systemFlags", attr, systemFlags);
 708         GET_BOOL_LDB(msg, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
 709         GET_UINT32_LDB(msg, "linkID", attr, linkID);
 710
 711         GET_STRING_LDB(msg, "attributeSyntax", mem_ctx, attr, attributeSyntax_oid, true);
 712         if (schema->num_prefixes == 0) {
 713                 /* set an invalid value */
 714                 attr->attributeSyntax_id = 0xFFFFFFFF;
 715         } else {
 716                 status = dsdb_map_oid2int(schema, attr->attributeSyntax_oid, &attr->attributeSyntax_id);
 717                 if (!W_ERROR_IS_OK(status)) {
 718                         DEBUG(0,("%s: '%s': unable to map attributeSyntax_ %s: %s\n",
 719                                 __location__, attr->lDAPDisplayName, attr->attributeSyntax_oid,
 720                                 win_errstr(status)));
 721                         return status;
 722                 }
 723         }
 724         GET_UINT32_LDB(msg, "oMSyntax", attr, oMSyntax);
 725         GET_BLOB_LDB(msg, "oMObjectClass", mem_ctx, attr, oMObjectClass);
 726
 727         GET_BOOL_LDB(msg, "isSingleValued", attr, isSingleValued, true);
 728         GET_UINT32_PTR_LDB(msg, "rangeLower", attr, rangeLower);
 729         GET_UINT32_PTR_LDB(msg, "rangeUpper", attr, rangeUpper);
 730         GET_BOOL_LDB(msg, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
 731
 732         GET_UINT32_LDB(msg, "schemaFlagsEx", attr, schemaFlagsEx);
 733         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
 734
 735         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
 736         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
 737         GET_STRING_LDB(msg, "adminDescription", mem_ctx, attr, adminDescription, false);
 738         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, attr, classDisplayName, false);
 739         GET_BOOL_LDB(msg, "isEphemeral", attr, isEphemeral, false);
 740         GET_BOOL_LDB(msg, "isDefunct", attr, isDefunct, false);
 741         GET_BOOL_LDB(msg, "systemOnly", attr, systemOnly, false);
 742
 743         attr->syntax = dsdb_syntax_for_attribute(attr);
 744         if (!attr->syntax) {
 745                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 746         }
 747
 748         return WERR_OK;
 749 }
 750
 751 WERROR dsdb_class_from_ldb(const struct dsdb_schema *schema,
 752                            struct ldb_message *msg,
 753                            TALLOC_CTX *mem_ctx,
 754                            struct dsdb_class *obj)
 755 {
 756         WERROR status;
 757
 758         GET_STRING_LDB(msg, "cn", mem_ctx, obj, cn, false);
 759         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
 760         GET_STRING_LDB(msg, "governsID", mem_ctx, obj, governsID_oid, true);
 761         if (schema->num_prefixes == 0) {
 762                 /* set an invalid value */
 763                 obj->governsID_id = 0xFFFFFFFF;
 764         } else {
 765                 status = dsdb_map_oid2int(schema, obj->governsID_oid, &obj->governsID_id);
 766                 if (!W_ERROR_IS_OK(status)) {
 767                         DEBUG(0,("%s: '%s': unable to map governsID %s: %s\n",
 768                                 __location__, obj->lDAPDisplayName, obj->governsID_oid,
 769                                 win_errstr(status)));
 770                         return status;
 771                 }
 772         }
 773         GET_GUID_LDB(msg, "schemaIDGUID", obj, schemaIDGUID);
 774
 775         GET_UINT32_LDB(msg, "objectClassCategory", obj, objectClassCategory);
 776         GET_STRING_LDB(msg, "rDNAttID", mem_ctx, obj, rDNAttID, false);
 777         GET_STRING_LDB(msg, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
 778
 779         GET_STRING_LDB(msg, "subClassOf", mem_ctx, obj, subClassOf, true);
 780
 781         GET_STRING_LIST_LDB(msg, "systemAuxiliaryClass", mem_ctx, obj, systemAuxiliaryClass, false);
 782         GET_STRING_LIST_LDB(msg, "auxiliaryClass", mem_ctx, obj, auxiliaryClass, false);
 783
 784         GET_STRING_LIST_LDB(msg, "systemMustContain", mem_ctx, obj, systemMustContain, false);
 785         GET_STRING_LIST_LDB(msg, "systemMayContain", mem_ctx, obj, systemMayContain, false);
 786         GET_STRING_LIST_LDB(msg, "mustContain", mem_ctx, obj, mustContain, false);
 787         GET_STRING_LIST_LDB(msg, "mayContain", mem_ctx, obj, mayContain, false);
 788
 789         GET_STRING_LIST_LDB(msg, "systemPossSuperiors", mem_ctx, obj, systemPossSuperiors, false);
 790         GET_STRING_LIST_LDB(msg, "possSuperiors", mem_ctx, obj, possSuperiors, false);
 791         GET_STRING_LIST_LDB(msg, "possibleInferiors", mem_ctx, obj, possibleInferiors, false);
 792
 793         GET_STRING_LDB(msg, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
 794
 795         GET_UINT32_LDB(msg, "schemaFlagsEx", obj, schemaFlagsEx);
 796         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
 797
 798         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
 799         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
 800         GET_STRING_LDB(msg, "adminDescription", mem_ctx, obj, adminDescription, false);
 801         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, obj, classDisplayName, false);
 802         GET_BOOL_LDB(msg, "defaultHidingValue", obj, defaultHidingValue, false);
 803         GET_BOOL_LDB(msg, "isDefunct", obj, isDefunct, false);
 804         GET_BOOL_LDB(msg, "systemOnly", obj, systemOnly, false);
 805
 806         return WERR_OK;
 807 }
 808
 809 #define dsdb_oom(error_string, mem_ctx) *error_string = talloc_asprintf(mem_ctx, "dsdb out of memory at %s:%d\n", __FILE__, __LINE__)
 810
 811 int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 812                                  struct smb_iconv_convenience *iconv_convenience,
 813                                  struct ldb_result *schema_res,
 814                                  struct ldb_result *attrs_res, struct ldb_result *objectclass_res,
 815                                  struct dsdb_schema **schema_out,
 816                                  char **error_string)
 817 {
 818         WERROR status;
 819         uint32_t i;
 820         const struct ldb_val *prefix_val;
 821         const struct ldb_val *info_val;
 822         struct ldb_val info_val_default;
 823         struct dsdb_schema *schema;
 824
 825         schema = dsdb_new_schema(mem_ctx, iconv_convenience);
 826         if (!schema) {
 827                 dsdb_oom(error_string, mem_ctx);
 828                 return LDB_ERR_OPERATIONS_ERROR;
 829         }
 830
 831         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 832         if (!prefix_val) {
 833                 *error_string = talloc_asprintf(mem_ctx,
 834                                                 "schema_fsmo_init: no prefixMap attribute found");
 835                 return LDB_ERR_CONSTRAINT_VIOLATION;
 836         }
 837         info_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "schemaInfo");
 838         if (!info_val) {
 839                 info_val_default = strhex_to_data_blob(mem_ctx, "FF0000000000000000000000000000000000000000");
 840                 if (!info_val_default.data) {
 841                         dsdb_oom(error_string, mem_ctx);
 842                         return LDB_ERR_OPERATIONS_ERROR;
 843                 }
 844                 info_val = &info_val_default;
 845         }
 846
 847         status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
 848         if (!W_ERROR_IS_OK(status)) {
 849                 *error_string = talloc_asprintf(mem_ctx,
 850                               "schema_fsmo_init: failed to load oid mappings: %s",
 851                               win_errstr(status));
 852                 return LDB_ERR_CONSTRAINT_VIOLATION;
 853         }
 854
 855         for (i=0; i < attrs_res->count; i++) {
 856                 struct dsdb_attribute *sa;
 857
 858                 sa = talloc_zero(schema, struct dsdb_attribute);
 859                 if (!sa) {
 860                         dsdb_oom(error_string, mem_ctx);
 861                         return LDB_ERR_OPERATIONS_ERROR;
 862                 }
 863
 864                 status = dsdb_attribute_from_ldb(schema, attrs_res->msgs[i], sa, sa);
 865                 if (!W_ERROR_IS_OK(status)) {
 866                         *error_string = talloc_asprintf(mem_ctx,
 867                                       "schema_fsmo_init: failed to load attribute definition: %s:%s",
 868                                       ldb_dn_get_linearized(attrs_res->msgs[i]->dn),
 869                                       win_errstr(status));
 870                         return LDB_ERR_CONSTRAINT_VIOLATION;
 871                 }
 872
 873                 DLIST_ADD_END(schema->attributes, sa, struct dsdb_attribute *);
 874         }
 875
 876         for (i=0; i < objectclass_res->count; i++) {
 877                 struct dsdb_class *sc;
 878
 879                 sc = talloc_zero(schema, struct dsdb_class);
 880                 if (!sc) {
 881                         dsdb_oom(error_string, mem_ctx);
 882                         return LDB_ERR_OPERATIONS_ERROR;
 883                 }
 884
 885                 status = dsdb_class_from_ldb(schema, objectclass_res->msgs[i], sc, sc);
 886                 if (!W_ERROR_IS_OK(status)) {
 887                         *error_string = talloc_asprintf(mem_ctx,
 888                                       "schema_fsmo_init: failed to load class definition: %s:%s",
 889                                       ldb_dn_get_linearized(objectclass_res->msgs[i]->dn),
 890                                       win_errstr(status));
 891                         return LDB_ERR_CONSTRAINT_VIOLATION;
 892                 }
 893
 894                 DLIST_ADD_END(schema->classes, sc, struct dsdb_class *);
 895         }
 896
 897         schema->fsmo.master_dn = ldb_msg_find_attr_as_dn(ldb, schema, schema_res->msgs[0], "fSMORoleOwner");
 898         if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), schema->fsmo.master_dn) == 0) {
 899                 schema->fsmo.we_are_master = true;
 900         } else {
 901                 schema->fsmo.we_are_master = false;
 902         }
 903
 904         DEBUG(5, ("schema_fsmo_init: we are master: %s\n",
 905                   (schema->fsmo.we_are_master?"yes":"no")));
 906
 907         *schema_out = schema;
 908         return LDB_SUCCESS;
 909 }
 910
 911 /* This recursive load of the objectClasses presumes that they
 912  * everything is in a strict subClassOf hirarchy.
 913  *
 914  * We load this in order so we produce certain outputs (such as the
 915  * exported schema for openldap, and sorted objectClass attribute) 'in
 916  * order' */
 917
 918 static int fetch_oc_recursive(struct ldb_context *ldb, struct ldb_dn *schemadn,
 919                               TALLOC_CTX *mem_ctx,
 920                               struct ldb_result *search_from,
 921                               struct ldb_result *res_list)
 922 {
 923         int i;
 924         int ret = 0;
 925         for (i=0; i < search_from->count; i++) {
 926                 struct ldb_result *res;
 927                 const char *name = ldb_msg_find_attr_as_string(search_from->msgs[i],
 928                                                                "lDAPDisplayname", NULL);
 929
 930                 ret = ldb_search(ldb, mem_ctx, &res,
 931                                         schemadn, LDB_SCOPE_SUBTREE, NULL,
 932                                         "(&(&(objectClass=classSchema)(subClassOf=%s))(!(lDAPDisplayName=%s)))",
 933                                         name, name);
 934                 if (ret != LDB_SUCCESS) {
 935                         return ret;
 936                 }
 937
 938                 res_list->msgs = talloc_realloc(res_list, res_list->msgs,
 939                                                 struct ldb_message *, res_list->count + 2);
 940                 if (!res_list->msgs) {
 941                         return LDB_ERR_OPERATIONS_ERROR;
 942                 }
 943                 res_list->msgs[res_list->count] = talloc_move(res_list,
 944                                                               &search_from->msgs[i]);
 945                 res_list->count++;
 946                 res_list->msgs[res_list->count] = NULL;
 947
 948                 if (res->count > 0) {
 949                         ret = fetch_oc_recursive(ldb, schemadn, mem_ctx, res, res_list);
 950                 }
 951                 if (ret != LDB_SUCCESS) {
 952                         return ret;
 953                 }
 954         }
 955         return ret;
 956 }
 957
 958 static int fetch_objectclass_schema(struct ldb_context *ldb, struct ldb_dn *schemadn,
 959                                     TALLOC_CTX *mem_ctx,
 960                                     struct ldb_result **objectclasses_res,
 961                                     char **error_string)
 962 {
 963         TALLOC_CTX *local_ctx = talloc_new(mem_ctx);
 964         struct ldb_result *top_res, *ret_res;
 965         int ret;
 966         if (!local_ctx) {
 967                 return LDB_ERR_OPERATIONS_ERROR;
 968         }
 969
 970         /* Download 'top' */
 971         ret = ldb_search(ldb, local_ctx, &top_res,
 972                          schemadn, LDB_SCOPE_SUBTREE, NULL,
 973                          "(&(objectClass=classSchema)(lDAPDisplayName=top))");
 974         if (ret != LDB_SUCCESS) {
 975                 *error_string = talloc_asprintf(mem_ctx,
 976                                                 "dsdb_schema: failed to search for top classSchema object: %s",
 977                                                 ldb_errstring(ldb));
 978                 return ret;
 979         }
 980
 981         if (top_res->count != 1) {
 982                 *error_string = talloc_asprintf(mem_ctx,
 983                                                 "dsdb_schema: failed to find top classSchema object");
 984                 return LDB_ERR_NO_SUCH_OBJECT;
 985         }
 986
 987         ret_res = talloc_zero(local_ctx, struct ldb_result);
 988         if (!ret_res) {
 989                 return LDB_ERR_OPERATIONS_ERROR;
 990         }
 991
 992         ret = fetch_oc_recursive(ldb, schemadn, local_ctx, top_res, ret_res);
 993
 994         if (ret != LDB_SUCCESS) {
 995                 return ret;
 996         }
 997
 998         *objectclasses_res = talloc_move(mem_ctx, &ret_res);
 999         return ret;
1000 }
1001
1002 int dsdb_schema_from_schema_dn(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
1003                                struct smb_iconv_convenience *iconv_convenience,
1004                                struct ldb_dn *schema_dn,
1005                                struct dsdb_schema **schema,
1006                                char **error_string_out)
1007 {
1008         TALLOC_CTX *tmp_ctx;
1009         char *error_string;
1010         int ret;
1011
1012         struct ldb_result *schema_res;
1013         struct ldb_result *a_res;
1014         struct ldb_result *c_res;
1015         static const char *schema_attrs[] = {
1016                 "prefixMap",
1017                 "schemaInfo",
1018                 "fSMORoleOwner",
1019                 NULL
1020         };
1021
1022         tmp_ctx = talloc_new(mem_ctx);
1023         if (!tmp_ctx) {
1024                 dsdb_oom(error_string_out, mem_ctx);
1025                 return LDB_ERR_OPERATIONS_ERROR;
1026         }
1027
1028         /*
1029          * setup the prefix mappings and schema info
1030          */
1031         ret = ldb_search(ldb, tmp_ctx, &schema_res,
1032                          schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
1033         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
1034                 talloc_free(tmp_ctx);
1035                 return ret;
1036         } else if (ret != LDB_SUCCESS) {
1037                 *error_string_out = talloc_asprintf(mem_ctx,
1038                                        "dsdb_schema: failed to search the schema head: %s",
1039                                        ldb_errstring(ldb));
1040                 talloc_free(tmp_ctx);
1041                 return ret;
1042         }
1043         if (schema_res->count != 1) {
1044                 *error_string_out = talloc_asprintf(mem_ctx,
1045                               "dsdb_schema: [%u] schema heads found on a base search",
1046                               schema_res->count);
1047                 talloc_free(tmp_ctx);
1048                 return LDB_ERR_CONSTRAINT_VIOLATION;
1049         }
1050
1051         /*
1052          * load the attribute definitions
1053          */
1054         ret = ldb_search(ldb, tmp_ctx, &a_res,
1055                          schema_dn, LDB_SCOPE_ONELEVEL, NULL,
1056                          "(objectClass=attributeSchema)");
1057         if (ret != LDB_SUCCESS) {
1058                 *error_string_out = talloc_asprintf(mem_ctx,
1059                                        "dsdb_schema: failed to search attributeSchema objects: %s",
1060                                        ldb_errstring(ldb));
1061                 talloc_free(tmp_ctx);
1062                 return ret;
1063         }
1064
1065         /*
1066          * load the objectClass definitions
1067          */
1068         ret = fetch_objectclass_schema(ldb, schema_dn, tmp_ctx, &c_res, &error_string);
1069         if (ret != LDB_SUCCESS) {
1070                 *error_string_out = talloc_asprintf(mem_ctx,
1071                                        "Failed to fetch objectClass schema elements: %s", error_string);
1072                 talloc_free(tmp_ctx);
1073                 return ret;
1074         }
1075
1076         ret = dsdb_schema_from_ldb_results(tmp_ctx, ldb,
1077                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
1078                                            schema_res, a_res, c_res, schema, &error_string);
1079         if (ret != LDB_SUCCESS) {
1080                 *error_string_out = talloc_asprintf(mem_ctx,
1081                                                     "dsdb_schema load failed: %s",
1082                                                     error_string);
1083                 talloc_free(tmp_ctx);
1084                 return ret;
1085         }
1086         talloc_steal(mem_ctx, *schema);
1087         talloc_free(tmp_ctx);
1088
1089         return LDB_SUCCESS;
1090 }
1091
1092
1093 static const struct {
1094         const char *name;
1095         const char *oid;
1096 } name_mappings[] = {
1097         { "cn",                                 "2.5.4.3" },
1098         { "name",                               "1.2.840.113556.1.4.1" },
1099         { "lDAPDisplayName",                    "1.2.840.113556.1.2.460" },
1100         { "attributeID",                        "1.2.840.113556.1.2.30" },
1101         { "schemaIDGUID",                       "1.2.840.113556.1.4.148" },
1102         { "mAPIID",                             "1.2.840.113556.1.2.49" },
1103         { "attributeSecurityGUID",              "1.2.840.113556.1.4.149" },
1104         { "searchFlags",                        "1.2.840.113556.1.2.334" },
1105         { "systemFlags",                        "1.2.840.113556.1.4.375" },
1106         { "isMemberOfPartialAttributeSet",      "1.2.840.113556.1.4.639" },
1107         { "linkID",                             "1.2.840.113556.1.2.50" },
1108         { "attributeSyntax",                    "1.2.840.113556.1.2.32" },
1109         { "oMSyntax",                           "1.2.840.113556.1.2.231" },
1110         { "oMObjectClass",                      "1.2.840.113556.1.2.218" },
1111         { "isSingleValued",                     "1.2.840.113556.1.2.33" },
1112         { "rangeLower",                         "1.2.840.113556.1.2.34" },
1113         { "rangeUpper",                         "1.2.840.113556.1.2.35" },
1114         { "extendedCharsAllowed",               "1.2.840.113556.1.2.380" },
1115         { "schemaFlagsEx",                      "1.2.840.113556.1.4.120" },
1116         { "msDs-Schema-Extensions",             "1.2.840.113556.1.4.1440" },
1117         { "showInAdvancedViewOnly",             "1.2.840.113556.1.2.169" },
1118         { "adminDisplayName",                   "1.2.840.113556.1.2.194" },
1119         { "adminDescription",                   "1.2.840.113556.1.2.226" },
1120         { "classDisplayName",                   "1.2.840.113556.1.4.610" },
1121         { "isEphemeral",                        "1.2.840.113556.1.4.1212" },
1122         { "isDefunct",                          "1.2.840.113556.1.4.661" },
1123         { "systemOnly",                         "1.2.840.113556.1.4.170" },
1124         { "governsID",                          "1.2.840.113556.1.2.22" },
1125         { "objectClassCategory",                "1.2.840.113556.1.2.370" },
1126         { "rDNAttID",                           "1.2.840.113556.1.2.26" },
1127         { "defaultObjectCategory",              "1.2.840.113556.1.4.783" },
1128         { "subClassOf",                         "1.2.840.113556.1.2.21" },
1129         { "systemAuxiliaryClass",               "1.2.840.113556.1.4.198" },
1130         { "systemPossSuperiors",                "1.2.840.113556.1.4.195" },
1131         { "systemMustContain",                  "1.2.840.113556.1.4.197" },
1132         { "systemMayContain",                   "1.2.840.113556.1.4.196" },
1133         { "auxiliaryClass",                     "1.2.840.113556.1.2.351" },
1134         { "possSuperiors",                      "1.2.840.113556.1.2.8" },
1135         { "mustContain",                        "1.2.840.113556.1.2.24" },
1136         { "mayContain",                         "1.2.840.113556.1.2.25" },
1137         { "defaultSecurityDescriptor",          "1.2.840.113556.1.4.224" },
1138         { "defaultHidingValue",                 "1.2.840.113556.1.4.518" },
1139 };
1140
1141 static struct drsuapi_DsReplicaAttribute *dsdb_find_object_attr_name(struct dsdb_schema *schema,
1142                                                                      struct drsuapi_DsReplicaObject *obj,
1143                                                                      const char *name,
1144                                                                      uint32_t *idx)
1145 {
1146         WERROR status;
1147         uint32_t i, id;
1148         const char *oid = NULL;
1149
1150         for(i=0; i < ARRAY_SIZE(name_mappings); i++) {
1151                 if (strcmp(name_mappings[i].name, name) != 0) continue;
1152
1153                 oid = name_mappings[i].oid;
1154                 break;
1155         }
1156
1157         if (!oid) {
1158                 return NULL;
1159         }
1160
1161         status = dsdb_map_oid2int(schema, oid, &id);
1162         if (!W_ERROR_IS_OK(status)) {
1163                 return NULL;
1164         }
1165
1166         for (i=0; i < obj->attribute_ctr.num_attributes; i++) {
1167                 if (obj->attribute_ctr.attributes[i].attid != id) continue;
1168
1169                 if (idx) *idx = i;
1170                 return &obj->attribute_ctr.attributes[i];
1171         }
1172
1173         return NULL;
1174 }
1175
1176 #define GET_STRING_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1177         struct drsuapi_DsReplicaAttribute *_a; \
1178         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1179         if (strict && !_a) { \
1180                 d_printf("%s: %s == NULL\n", __location__, attr); \
1181                 return WERR_INVALID_PARAM; \
1182         } \
1183         if (strict && _a->value_ctr.num_values != 1) { \
1184                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1185                         _a->value_ctr.num_values); \
1186                 return WERR_INVALID_PARAM; \
1187         } \
1188         if (_a && _a->value_ctr.num_values >= 1) { \
1189                 ssize_t _ret; \
1190                 _ret = convert_string_talloc_convenience(mem_ctx, s->iconv_convenience, CH_UTF16, CH_UNIX, \
1191                                              _a->value_ctr.values[0].blob->data, \
1192                                              _a->value_ctr.values[0].blob->length, \
1193                                              (void **)discard_const(&(p)->elem), false); \
1194                 if (_ret == -1) { \
1195                         DEBUG(0,("%s: invalid data!\n", attr)); \
1196                         dump_data(0, \
1197                                      _a->value_ctr.values[0].blob->data, \
1198                                      _a->value_ctr.values[0].blob->length); \
1199                         return WERR_FOOBAR; \
1200                 } \
1201         } else { \
1202                 (p)->elem = NULL; \
1203         } \
1204 } while (0)
1205
1206 #define GET_DN_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1207         struct drsuapi_DsReplicaAttribute *_a; \
1208         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1209         if (strict && !_a) { \
1210                 d_printf("%s: %s == NULL\n", __location__, attr); \
1211                 return WERR_INVALID_PARAM; \
1212         } \
1213         if (strict && _a->value_ctr.num_values != 1) { \
1214                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1215                         _a->value_ctr.num_values); \
1216                 return WERR_INVALID_PARAM; \
1217         } \
1218         if (strict && !_a->value_ctr.values[0].blob) { \
1219                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1220                 return WERR_INVALID_PARAM; \
1221         } \
1222         if (_a && _a->value_ctr.num_values >= 1 \
1223             && _a->value_ctr.values[0].blob) { \
1224                 struct drsuapi_DsReplicaObjectIdentifier3 _id3; \
1225                 enum ndr_err_code _ndr_err; \
1226                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1227                                                       mem_ctx, s->iconv_convenience, &_id3,\
1228                                                       (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);\
1229                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1230                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1231                         return ntstatus_to_werror(_nt_status); \
1232                 } \
1233                 (p)->elem = _id3.dn; \
1234         } else { \
1235                 (p)->elem = NULL; \
1236         } \
1237 } while (0)
1238
1239 #define GET_BOOL_DS(s, r, attr, p, elem, strict) do { \
1240         struct drsuapi_DsReplicaAttribute *_a; \
1241         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1242         if (strict && !_a) { \
1243                 d_printf("%s: %s == NULL\n", __location__, attr); \
1244                 return WERR_INVALID_PARAM; \
1245         } \
1246         if (strict && _a->value_ctr.num_values != 1) { \
1247                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1248                          (unsigned int)_a->value_ctr.num_values);       \
1249                 return WERR_INVALID_PARAM; \
1250         } \
1251         if (strict && !_a->value_ctr.values[0].blob) { \
1252                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1253                 return WERR_INVALID_PARAM; \
1254         } \
1255         if (strict && _a->value_ctr.values[0].blob->length != 4) { \
1256                 d_printf("%s: %s length == %u\n", __location__, attr, \
1257                          (unsigned int)_a->value_ctr.values[0].blob->length); \
1258                 return WERR_INVALID_PARAM; \
1259         } \
1260         if (_a && _a->value_ctr.num_values >= 1 \
1261             && _a->value_ctr.values[0].blob \
1262             && _a->value_ctr.values[0].blob->length == 4) { \
1263                 (p)->elem = (IVAL(_a->value_ctr.values[0].blob->data,0)?true:false);\
1264         } else { \
1265                 (p)->elem = false; \
1266         } \
1267 } while (0)
1268
1269 #define GET_UINT32_DS(s, r, attr, p, elem) do { \
1270         struct drsuapi_DsReplicaAttribute *_a; \
1271         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1272         if (_a && _a->value_ctr.num_values >= 1 \
1273             && _a->value_ctr.values[0].blob \
1274             && _a->value_ctr.values[0].blob->length == 4) { \
1275                 (p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1276         } else { \
1277                 (p)->elem = 0; \
1278         } \
1279 } while (0)
1280
1281 #define GET_UINT32_PTR_DS(s, r, attr, p, elem) do { \
1282         struct drsuapi_DsReplicaAttribute *_a; \
1283         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1284         if (_a && _a->value_ctr.num_values >= 1 \
1285             && _a->value_ctr.values[0].blob \
1286             && _a->value_ctr.values[0].blob->length == 4) { \
1287                 (p)->elem = talloc(mem_ctx, uint32_t); \
1288                 if (!(p)->elem) { \
1289                         d_printf("%s: talloc failed for %s\n", __location__, attr); \
1290                         return WERR_NOMEM; \
1291                 } \
1292                 *(p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1293         } else { \
1294                 (p)->elem = NULL; \
1295         } \
1296 } while (0)
1297
1298 #define GET_GUID_DS(s, r, attr, mem_ctx, p, elem) do { \
1299         struct drsuapi_DsReplicaAttribute *_a; \
1300         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1301         if (_a && _a->value_ctr.num_values >= 1 \
1302             && _a->value_ctr.values[0].blob \
1303             && _a->value_ctr.values[0].blob->length == 16) { \
1304                 enum ndr_err_code _ndr_err; \
1305                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1306                                                       mem_ctx, s->iconv_convenience, &(p)->elem, \
1307                                                       (ndr_pull_flags_fn_t)ndr_pull_GUID); \
1308                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1309                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1310                         return ntstatus_to_werror(_nt_status); \
1311                 } \
1312         } else { \
1313                 ZERO_STRUCT((p)->elem);\
1314         } \
1315 } while (0)
1316
1317 #define GET_BLOB_DS(s, r, attr, mem_ctx, p, elem) do { \
1318         struct drsuapi_DsReplicaAttribute *_a; \
1319         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1320         if (_a && _a->value_ctr.num_values >= 1 \
1321             && _a->value_ctr.values[0].blob) { \
1322                 (p)->elem = *_a->value_ctr.values[0].blob;\
1323                 talloc_steal(mem_ctx, (p)->elem.data); \
1324         } else { \
1325                 ZERO_STRUCT((p)->elem);\
1326         }\
1327 } while (0)
1328
1329 WERROR dsdb_attribute_from_drsuapi(struct dsdb_schema *schema,
1330                                    struct drsuapi_DsReplicaObject *r,
1331                                    TALLOC_CTX *mem_ctx,
1332                                    struct dsdb_attribute *attr)
1333 {
1334         WERROR status;
1335
1336         GET_STRING_DS(schema, r, "name", mem_ctx, attr, cn, true);
1337         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
1338         GET_UINT32_DS(schema, r, "attributeID", attr, attributeID_id);
1339         status = dsdb_map_int2oid(schema, attr->attributeID_id, mem_ctx, &attr->attributeID_oid);
1340         if (!W_ERROR_IS_OK(status)) {
1341                 DEBUG(0,("%s: '%s': unable to map attributeID 0x%08X: %s\n",
1342                         __location__, attr->lDAPDisplayName, attr->attributeID_id,
1343                         win_errstr(status)));
1344                 return status;
1345         }
1346         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, attr, schemaIDGUID);
1347         GET_UINT32_DS(schema, r, "mAPIID", attr, mAPIID);
1348
1349         GET_GUID_DS(schema, r, "attributeSecurityGUID", mem_ctx, attr, attributeSecurityGUID);
1350
1351         GET_UINT32_DS(schema, r, "searchFlags", attr, searchFlags);
1352         GET_UINT32_DS(schema, r, "systemFlags", attr, systemFlags);
1353         GET_BOOL_DS(schema, r, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
1354         GET_UINT32_DS(schema, r, "linkID", attr, linkID);
1355
1356         GET_UINT32_DS(schema, r, "attributeSyntax", attr, attributeSyntax_id);
1357         status = dsdb_map_int2oid(schema, attr->attributeSyntax_id, mem_ctx, &attr->attributeSyntax_oid);
1358         if (!W_ERROR_IS_OK(status)) {
1359                 DEBUG(0,("%s: '%s': unable to map attributeSyntax 0x%08X: %s\n",
1360                         __location__, attr->lDAPDisplayName, attr->attributeSyntax_id,
1361                         win_errstr(status)));
1362                 return status;
1363         }
1364         GET_UINT32_DS(schema, r, "oMSyntax", attr, oMSyntax);
1365         GET_BLOB_DS(schema, r, "oMObjectClass", mem_ctx, attr, oMObjectClass);
1366
1367         GET_BOOL_DS(schema, r, "isSingleValued", attr, isSingleValued, true);
1368         GET_UINT32_PTR_DS(schema, r, "rangeLower", attr, rangeLower);
1369         GET_UINT32_PTR_DS(schema, r, "rangeUpper", attr, rangeUpper);
1370         GET_BOOL_DS(schema, r, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
1371
1372         GET_UINT32_DS(schema, r, "schemaFlagsEx", attr, schemaFlagsEx);
1373         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
1374
1375         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
1376         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
1377         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, attr, adminDescription, false);
1378         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, attr, classDisplayName, false);
1379         GET_BOOL_DS(schema, r, "isEphemeral", attr, isEphemeral, false);
1380         GET_BOOL_DS(schema, r, "isDefunct", attr, isDefunct, false);
1381         GET_BOOL_DS(schema, r, "systemOnly", attr, systemOnly, false);
1382
1383         attr->syntax = dsdb_syntax_for_attribute(attr);
1384         if (!attr->syntax) {
1385                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
1386         }
1387
1388         return WERR_OK;
1389 }
1390
1391 WERROR dsdb_class_from_drsuapi(struct dsdb_schema *schema,
1392                                struct drsuapi_DsReplicaObject *r,
1393                                TALLOC_CTX *mem_ctx,
1394                                struct dsdb_class *obj)
1395 {
1396         WERROR status;
1397
1398         GET_STRING_DS(schema, r, "name", mem_ctx, obj, cn, true);
1399         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
1400         GET_UINT32_DS(schema, r, "governsID", obj, governsID_id);
1401         status = dsdb_map_int2oid(schema, obj->governsID_id, mem_ctx, &obj->governsID_oid);
1402         if (!W_ERROR_IS_OK(status)) {
1403                 DEBUG(0,("%s: '%s': unable to map governsID 0x%08X: %s\n",
1404                         __location__, obj->lDAPDisplayName, obj->governsID_id,
1405                         win_errstr(status)));
1406                 return status;
1407         }
1408         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, obj, schemaIDGUID);
1409
1410         GET_UINT32_DS(schema, r, "objectClassCategory", obj, objectClassCategory);
1411         GET_STRING_DS(schema, r, "rDNAttID", mem_ctx, obj, rDNAttID, false);
1412         GET_DN_DS(schema, r, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
1413
1414         GET_STRING_DS(schema, r, "subClassOf", mem_ctx, obj, subClassOf, true);
1415
1416         obj->systemAuxiliaryClass       = NULL;
1417         obj->systemPossSuperiors        = NULL;
1418         obj->systemMustContain          = NULL;
1419         obj->systemMayContain           = NULL;
1420
1421         obj->auxiliaryClass             = NULL;
1422         obj->possSuperiors              = NULL;
1423         obj->mustContain                = NULL;
1424         obj->mayContain                 = NULL;
1425
1426         obj->possibleInferiors          = NULL;
1427
1428         GET_STRING_DS(schema, r, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
1429
1430         GET_UINT32_DS(schema, r, "schemaFlagsEx", obj, schemaFlagsEx);
1431         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
1432
1433         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
1434         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
1435         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, obj, adminDescription, false);
1436         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, obj, classDisplayName, false);
1437         GET_BOOL_DS(schema, r, "defaultHidingValue", obj, defaultHidingValue, false);
1438         GET_BOOL_DS(schema, r, "isDefunct", obj, isDefunct, false);
1439         GET_BOOL_DS(schema, r, "systemOnly", obj, systemOnly, false);
1440
1441         return WERR_OK;
1442 }
1443