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 #include "lib/ldb/include/ldb_module.h"
  32
  33 struct dsdb_schema *dsdb_new_schema(TALLOC_CTX *mem_ctx, struct smb_iconv_convenience *iconv_convenience)
  34 {
  35         struct dsdb_schema *schema = talloc_zero(mem_ctx, struct dsdb_schema);
  36         if (!schema) {
  37                 return NULL;
  38         }
  39
  40         schema->iconv_convenience = iconv_convenience;
  41         return schema;
  42 }
  43
  44
  45 WERROR dsdb_load_oid_mappings_drsuapi(struct dsdb_schema *schema, const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr)
  46 {
  47         uint32_t i,j;
  48
  49         schema->prefixes = talloc_array(schema, struct dsdb_schema_oid_prefix, ctr->num_mappings);
  50         W_ERROR_HAVE_NO_MEMORY(schema->prefixes);
  51
  52         for (i=0, j=0; i < ctr->num_mappings; i++) {
  53                 if (ctr->mappings[i].oid.oid == NULL) {
  54                         return WERR_INVALID_PARAM;
  55                 }
  56
  57                 if (strncasecmp(ctr->mappings[i].oid.oid, "ff", 2) == 0) {
  58                         if (ctr->mappings[i].id_prefix != 0) {
  59                                 return WERR_INVALID_PARAM;
  60                         }
  61
  62                         /* the magic value should be in the last array member */
  63                         if (i != (ctr->num_mappings - 1)) {
  64                                 return WERR_INVALID_PARAM;
  65                         }
  66
  67                         if (ctr->mappings[i].oid.__ndr_size != 21) {
  68                                 return WERR_INVALID_PARAM;
  69                         }
  70
  71                         schema->schema_info = talloc_strdup(schema, ctr->mappings[i].oid.oid);
  72                         W_ERROR_HAVE_NO_MEMORY(schema->schema_info);
  73                 } else {
  74                         /* the last array member should contain the magic value not a oid */
  75                         if (i == (ctr->num_mappings - 1)) {
  76                                 return WERR_INVALID_PARAM;
  77                         }
  78
  79                         schema->prefixes[j].id  = ctr->mappings[i].id_prefix<<16;
  80                         schema->prefixes[j].oid = talloc_asprintf(schema->prefixes, "%s.",
  81                                                                   ctr->mappings[i].oid.oid);
  82                         W_ERROR_HAVE_NO_MEMORY(schema->prefixes[j].oid);
  83                         schema->prefixes[j].oid_len = strlen(schema->prefixes[j].oid);
  84                         j++;
  85                 }
  86         }
  87
  88         schema->num_prefixes = j;
  89         return WERR_OK;
  90 }
  91
  92 WERROR dsdb_load_oid_mappings_ldb(struct dsdb_schema *schema,
  93                                   const struct ldb_val *prefixMap,
  94                                   const struct ldb_val *schemaInfo)
  95 {
  96         WERROR status;
  97         enum ndr_err_code ndr_err;
  98         struct prefixMapBlob pfm;
  99         char *schema_info;
 100
 101         TALLOC_CTX *mem_ctx = talloc_new(schema);
 102         W_ERROR_HAVE_NO_MEMORY(mem_ctx);
 103
 104         ndr_err = ndr_pull_struct_blob(prefixMap, mem_ctx, schema->iconv_convenience, &pfm, (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 105         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 106                 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
 107                 talloc_free(mem_ctx);
 108                 return ntstatus_to_werror(nt_status);
 109         }
 110
 111         if (pfm.version != PREFIX_MAP_VERSION_DSDB) {
 112                 talloc_free(mem_ctx);
 113                 return WERR_FOOBAR;
 114         }
 115
 116         if (schemaInfo->length != 21 && schemaInfo->data[0] == 0xFF) {
 117                 talloc_free(mem_ctx);
 118                 return WERR_FOOBAR;
 119         }
 120
 121         /* append the schema info as last element */
 122         pfm.ctr.dsdb.num_mappings++;
 123         pfm.ctr.dsdb.mappings = talloc_realloc(mem_ctx, pfm.ctr.dsdb.mappings,
 124                                                struct drsuapi_DsReplicaOIDMapping,
 125                                                pfm.ctr.dsdb.num_mappings);
 126         W_ERROR_HAVE_NO_MEMORY(pfm.ctr.dsdb.mappings);
 127
 128         schema_info = data_blob_hex_string(pfm.ctr.dsdb.mappings, schemaInfo);
 129         W_ERROR_HAVE_NO_MEMORY(schema_info);
 130
 131         pfm.ctr.dsdb.mappings[pfm.ctr.dsdb.num_mappings - 1].id_prefix          = 0;
 132         pfm.ctr.dsdb.mappings[pfm.ctr.dsdb.num_mappings - 1].oid.__ndr_size     = schemaInfo->length;
 133         pfm.ctr.dsdb.mappings[pfm.ctr.dsdb.num_mappings - 1].oid.oid            = schema_info;
 134
 135         /* call the drsuapi version */
 136         status = dsdb_load_oid_mappings_drsuapi(schema, &pfm.ctr.dsdb);
 137         talloc_free(mem_ctx);
 138
 139         W_ERROR_NOT_OK_RETURN(status);
 140
 141         return WERR_OK;
 142 }
 143
 144 WERROR dsdb_get_oid_mappings_drsuapi(const struct dsdb_schema *schema,
 145                                      bool include_schema_info,
 146                                      TALLOC_CTX *mem_ctx,
 147                                      struct drsuapi_DsReplicaOIDMapping_Ctr **_ctr)
 148 {
 149         struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
 150         uint32_t i;
 151
 152         ctr = talloc(mem_ctx, struct drsuapi_DsReplicaOIDMapping_Ctr);
 153         W_ERROR_HAVE_NO_MEMORY(ctr);
 154
 155         ctr->num_mappings       = schema->num_prefixes;
 156         if (include_schema_info) ctr->num_mappings++;
 157         ctr->mappings = talloc_array(schema, struct drsuapi_DsReplicaOIDMapping, ctr->num_mappings);
 158         W_ERROR_HAVE_NO_MEMORY(ctr->mappings);
 159
 160         for (i=0; i < schema->num_prefixes; i++) {
 161                 ctr->mappings[i].id_prefix      = schema->prefixes[i].id>>16;
 162                 ctr->mappings[i].oid.oid        = talloc_strndup(ctr->mappings,
 163                                                                  schema->prefixes[i].oid,
 164                                                                  schema->prefixes[i].oid_len - 1);
 165                 W_ERROR_HAVE_NO_MEMORY(ctr->mappings[i].oid.oid);
 166         }
 167
 168         if (include_schema_info) {
 169                 ctr->mappings[i].id_prefix      = 0;
 170                 ctr->mappings[i].oid.oid        = talloc_strdup(ctr->mappings,
 171                                                                 schema->schema_info);
 172                 W_ERROR_HAVE_NO_MEMORY(ctr->mappings[i].oid.oid);
 173         }
 174
 175         *_ctr = ctr;
 176         return WERR_OK;
 177 }
 178
 179 WERROR dsdb_get_oid_mappings_ldb(const struct dsdb_schema *schema,
 180                                  TALLOC_CTX *mem_ctx,
 181                                  struct ldb_val *prefixMap,
 182                                  struct ldb_val *schemaInfo)
 183 {
 184         WERROR status;
 185         enum ndr_err_code ndr_err;
 186         struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
 187         struct prefixMapBlob pfm;
 188
 189         status = dsdb_get_oid_mappings_drsuapi(schema, false, mem_ctx, &ctr);
 190         W_ERROR_NOT_OK_RETURN(status);
 191
 192         pfm.version     = PREFIX_MAP_VERSION_DSDB;
 193         pfm.reserved    = 0;
 194         pfm.ctr.dsdb    = *ctr;
 195
 196         ndr_err = ndr_push_struct_blob(prefixMap, mem_ctx, schema->iconv_convenience, &pfm, (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 197         talloc_free(ctr);
 198         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 199                 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
 200                 return ntstatus_to_werror(nt_status);
 201         }
 202
 203         *schemaInfo = strhex_to_data_blob(mem_ctx, schema->schema_info);
 204         W_ERROR_HAVE_NO_MEMORY(schemaInfo->data);
 205
 206         return WERR_OK;
 207 }
 208
 209 WERROR dsdb_verify_oid_mappings_drsuapi(const struct dsdb_schema *schema, const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr)
 210 {
 211         uint32_t i,j;
 212
 213         for (i=0; i < ctr->num_mappings; i++) {
 214                 if (ctr->mappings[i].oid.oid == NULL) {
 215                         return WERR_INVALID_PARAM;
 216                 }
 217
 218                 if (strncasecmp(ctr->mappings[i].oid.oid, "ff", 2) == 0) {
 219                         if (ctr->mappings[i].id_prefix != 0) {
 220                                 return WERR_INVALID_PARAM;
 221                         }
 222
 223                         /* the magic value should be in the last array member */
 224                         if (i != (ctr->num_mappings - 1)) {
 225                                 return WERR_INVALID_PARAM;
 226                         }
 227
 228                         if (ctr->mappings[i].oid.__ndr_size != 21) {
 229                                 return WERR_INVALID_PARAM;
 230                         }
 231
 232                         if (strcasecmp(schema->schema_info, ctr->mappings[i].oid.oid) != 0) {
 233                                 return WERR_DS_DRA_SCHEMA_MISMATCH;
 234                         }
 235                 } else {
 236                         /* the last array member should contain the magic value not a oid */
 237                         if (i == (ctr->num_mappings - 1)) {
 238                                 return WERR_INVALID_PARAM;
 239                         }
 240
 241                         for (j=0; j < schema->num_prefixes; j++) {
 242                                 size_t oid_len;
 243                                 if (schema->prefixes[j].id != (ctr->mappings[i].id_prefix<<16)) {
 244                                         continue;
 245                                 }
 246
 247                                 oid_len = strlen(ctr->mappings[i].oid.oid);
 248
 249                                 if (oid_len != (schema->prefixes[j].oid_len - 1)) {
 250                                         return WERR_DS_DRA_SCHEMA_MISMATCH;
 251                                 }
 252
 253                                 if (strncmp(ctr->mappings[i].oid.oid, schema->prefixes[j].oid, oid_len) != 0) {
 254                                         return WERR_DS_DRA_SCHEMA_MISMATCH;
 255                                 }
 256
 257                                 break;
 258                         }
 259
 260                         if (j == schema->num_prefixes) {
 261                                 return WERR_DS_DRA_SCHEMA_MISMATCH;
 262                         }
 263                 }
 264         }
 265
 266         return WERR_OK;
 267 }
 268
 269 WERROR dsdb_map_oid2int(const struct dsdb_schema *schema, const char *in, uint32_t *out)
 270 {
 271         return dsdb_find_prefix_for_oid(schema->num_prefixes, schema->prefixes, in, out);
 272 }
 273
 274
 275 WERROR dsdb_map_int2oid(const struct dsdb_schema *schema, uint32_t in, TALLOC_CTX *mem_ctx, const char **out)
 276 {
 277         uint32_t i;
 278
 279         for (i=0; i < schema->num_prefixes; i++) {
 280                 const char *val;
 281                 if (schema->prefixes[i].id != (in & 0xFFFF0000)) {
 282                         continue;
 283                 }
 284
 285                 val = talloc_asprintf(mem_ctx, "%s%u",
 286                                       schema->prefixes[i].oid,
 287                                       in & 0xFFFF);
 288                 W_ERROR_HAVE_NO_MEMORY(val);
 289
 290                 *out = val;
 291                 return WERR_OK;
 292         }
 293
 294         return WERR_DS_NO_MSDS_INTID;
 295 }
 296
 297 /*
 298  * this function is called from within a ldb transaction from the schema_fsmo module
 299  */
 300 WERROR dsdb_create_prefix_mapping(struct ldb_context *ldb, struct dsdb_schema *schema, const char *full_oid)
 301 {
 302         WERROR status;
 303         uint32_t num_prefixes;
 304         struct dsdb_schema_oid_prefix *prefixes;
 305         TALLOC_CTX *mem_ctx;
 306         uint32_t out;
 307
 308         mem_ctx = talloc_new(ldb);
 309         W_ERROR_HAVE_NO_MEMORY(mem_ctx);
 310
 311         /* Read prefixes from disk*/
 312         status = dsdb_read_prefixes_from_ldb( mem_ctx, ldb, &num_prefixes, &prefixes );
 313         if (!W_ERROR_IS_OK(status)) {
 314                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_read_prefixes_from_ldb: %s\n",
 315                         win_errstr(status)));
 316                 talloc_free(mem_ctx);
 317                 return status;
 318         }
 319
 320         /* Check if there is a prefix for the oid in the prefixes array*/
 321         status = dsdb_find_prefix_for_oid( num_prefixes, prefixes, full_oid, &out );
 322         if (W_ERROR_IS_OK(status)) {
 323                 /* prefix found*/
 324                 talloc_free(mem_ctx);
 325                 return status;
 326         } else if (!W_ERROR_EQUAL(WERR_DS_NO_MSDS_INTID, status)) {
 327                 /* error */
 328                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_find_prefix_for_oid: %s\n",
 329                         win_errstr(status)));
 330                 talloc_free(mem_ctx);
 331                 return status;
 332         }
 333
 334         /* Create the new mapping for the prefix of full_oid */
 335         status = dsdb_prefix_map_update(mem_ctx, &num_prefixes, &prefixes, full_oid);
 336         if (!W_ERROR_IS_OK(status)) {
 337                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_prefix_map_update: %s\n",
 338                         win_errstr(status)));
 339                 talloc_free(mem_ctx);
 340                 return status;
 341         }
 342
 343         talloc_free(schema->prefixes);
 344         schema->prefixes = talloc_steal(schema, prefixes);
 345         schema->num_prefixes = num_prefixes;
 346
 347         /* Update prefixMap in ldb*/
 348         status = dsdb_write_prefixes_from_schema_to_ldb(mem_ctx, ldb, schema);
 349         if (!W_ERROR_IS_OK(status)) {
 350                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_write_prefixes_to_ldb: %s\n",
 351                         win_errstr(status)));
 352                 talloc_free(mem_ctx);
 353                 return status;
 354         }
 355
 356         DEBUG(2,(__location__ " Added prefixMap %s - now have %u prefixes\n",
 357                  full_oid, num_prefixes));
 358
 359         talloc_free(mem_ctx);
 360         return status;
 361 }
 362
 363 WERROR dsdb_prefix_map_update(TALLOC_CTX *mem_ctx, uint32_t *num_prefixes, struct dsdb_schema_oid_prefix **prefixes, const char *oid)
 364 {
 365         uint32_t new_num_prefixes, index_new_prefix, new_entry_id;
 366         const char* lastDotOffset;
 367         size_t size;
 368
 369         new_num_prefixes = *num_prefixes + 1;
 370         index_new_prefix = *num_prefixes;
 371
 372         /*
 373          * this is the algorithm we use to create new mappings for now
 374          *
 375          * TODO: find what algorithm windows use
 376          */
 377         new_entry_id = (*num_prefixes)<<16;
 378
 379         /* Extract the prefix from the oid*/
 380         lastDotOffset = strrchr(oid, '.');
 381         if (lastDotOffset == NULL) {
 382                 DEBUG(0,("dsdb_prefix_map_update: failed to find the last dot\n"));
 383                 return WERR_NOT_FOUND;
 384         }
 385
 386         /* Calculate the size of the remainig string that should be the prefix of it */
 387         size = strlen(oid) - strlen(lastDotOffset);
 388         if (size <= 0) {
 389                 DEBUG(0,("dsdb_prefix_map_update: size of the remaining string invalid\n"));
 390                 return WERR_FOOBAR;
 391         }
 392         /* Add one because we need to copy the dot */
 393         size += 1;
 394
 395         /* Create a spot in the prefixMap for one more prefix*/
 396         (*prefixes) = talloc_realloc(mem_ctx, *prefixes, struct dsdb_schema_oid_prefix, new_num_prefixes);
 397         W_ERROR_HAVE_NO_MEMORY(*prefixes);
 398
 399         /* Add the new prefix entry*/
 400         (*prefixes)[index_new_prefix].id = new_entry_id;
 401         (*prefixes)[index_new_prefix].oid = talloc_strndup(mem_ctx, oid, size);
 402         (*prefixes)[index_new_prefix].oid_len = strlen((*prefixes)[index_new_prefix].oid);
 403
 404         /* Increase num_prefixes because new prefix has been added */
 405         ++(*num_prefixes);
 406
 407         return WERR_OK;
 408 }
 409
 410 WERROR dsdb_find_prefix_for_oid(uint32_t num_prefixes, const struct dsdb_schema_oid_prefix *prefixes, const char *in, uint32_t *out)
 411 {
 412         uint32_t i;
 413
 414         for (i=0; i < num_prefixes; i++) {
 415                 const char *val_str;
 416                 char *end_str;
 417                 unsigned val;
 418
 419                 if (strncmp(prefixes[i].oid, in, prefixes[i].oid_len) != 0) {
 420                         continue;
 421                 }
 422
 423                 val_str = in + prefixes[i].oid_len;
 424                 end_str = NULL;
 425                 errno = 0;
 426
 427                 if (val_str[0] == '\0') {
 428                         return WERR_INVALID_PARAM;
 429                 }
 430
 431                 /* two '.' chars are invalid */
 432                 if (val_str[0] == '.') {
 433                         return WERR_INVALID_PARAM;
 434                 }
 435
 436                 val = strtoul(val_str, &end_str, 10);
 437                 if (end_str[0] == '.' && end_str[1] != '\0') {
 438                         /*
 439                          * if it's a '.' and not the last char
 440                          * then maybe an other mapping apply
 441                          */
 442                         continue;
 443                 } else if (end_str[0] != '\0') {
 444                         return WERR_INVALID_PARAM;
 445                 } else if (val > 0xFFFF) {
 446                         return WERR_INVALID_PARAM;
 447                 }
 448
 449                 *out = prefixes[i].id | val;
 450                 return WERR_OK;
 451         }
 452
 453         DEBUG(5,(__location__ " Failed to find oid %s - have %u prefixes\n", in, num_prefixes));
 454
 455         return WERR_DS_NO_MSDS_INTID;
 456 }
 457
 458 WERROR dsdb_write_prefixes_from_schema_to_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 459                                                      const struct dsdb_schema *schema)
 460 {
 461         struct ldb_message msg;
 462         struct ldb_dn *schema_dn;
 463         struct ldb_message_element el;
 464         struct prefixMapBlob pm;
 465         struct ldb_val ndr_blob;
 466         enum ndr_err_code ndr_err;
 467         uint32_t i;
 468         int ret;
 469
 470         schema_dn = samdb_schema_dn(ldb);
 471         if (!schema_dn) {
 472                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: no schema dn present\n"));
 473                 return WERR_FOOBAR;
 474         }
 475
 476         pm.version                      = PREFIX_MAP_VERSION_DSDB;
 477         pm.ctr.dsdb.num_mappings        = schema->num_prefixes;
 478         pm.ctr.dsdb.mappings            = talloc_array(mem_ctx,
 479                                                 struct drsuapi_DsReplicaOIDMapping,
 480                                                 pm.ctr.dsdb.num_mappings);
 481         if (!pm.ctr.dsdb.mappings) {
 482                 return WERR_NOMEM;
 483         }
 484
 485         for (i=0; i < schema->num_prefixes; i++) {
 486                 pm.ctr.dsdb.mappings[i].id_prefix = schema->prefixes[i].id>>16;
 487                 pm.ctr.dsdb.mappings[i].oid.oid = talloc_strdup(pm.ctr.dsdb.mappings, schema->prefixes[i].oid);
 488         }
 489
 490         ndr_err = ndr_push_struct_blob(&ndr_blob, ldb,
 491                                        lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 492                                        &pm,
 493                                        (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 494         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 495                 return WERR_FOOBAR;
 496         }
 497
 498         el.num_values = 1;
 499         el.values = &ndr_blob;
 500         el.flags = LDB_FLAG_MOD_REPLACE;
 501         el.name = talloc_strdup(mem_ctx, "prefixMap");
 502
 503         msg.dn = ldb_dn_copy(mem_ctx, schema_dn);
 504         msg.num_elements = 1;
 505         msg.elements = &el;
 506
 507         ret = ldb_modify( ldb, &msg );
 508         if (ret != 0) {
 509                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: ldb_modify failed\n"));
 510                 return WERR_FOOBAR;
 511         }
 512
 513         return WERR_OK;
 514 }
 515
 516 WERROR dsdb_read_prefixes_from_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, uint32_t* num_prefixes, struct dsdb_schema_oid_prefix **prefixes)
 517 {
 518         struct prefixMapBlob *blob;
 519         enum ndr_err_code ndr_err;
 520         uint32_t i;
 521         const struct ldb_val *prefix_val;
 522         struct ldb_dn *schema_dn;
 523         struct ldb_result *schema_res;
 524         int ret;
 525         static const char *schema_attrs[] = {
 526                 "prefixMap",
 527                 NULL
 528         };
 529
 530         schema_dn = samdb_schema_dn(ldb);
 531         if (!schema_dn) {
 532                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no schema dn present\n"));
 533                 return WERR_FOOBAR;
 534         }
 535
 536         ret = ldb_search(ldb, mem_ctx, &schema_res, schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
 537         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
 538                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefix map present\n"));
 539                 talloc_free(schema_res);
 540                 return WERR_FOOBAR;
 541         } else if (ret != LDB_SUCCESS) {
 542                 DEBUG(0,("dsdb_read_prefixes_from_ldb: failed to search the schema head\n"));
 543                 talloc_free(schema_res);
 544                 return WERR_FOOBAR;
 545         }
 546
 547         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 548         if (!prefix_val) {
 549                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefixMap attribute found\n"));
 550                 talloc_free(schema_res);
 551                 return WERR_FOOBAR;
 552         }
 553
 554         blob = talloc(mem_ctx, struct prefixMapBlob);
 555         W_ERROR_HAVE_NO_MEMORY(blob);
 556
 557         ndr_err = ndr_pull_struct_blob(prefix_val, blob,
 558                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 559                                            blob,
 560                                            (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 561         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 562                 DEBUG(0,("dsdb_read_prefixes_from_ldb: ndr_pull_struct_blob failed\n"));
 563                 talloc_free(blob);
 564                 talloc_free(schema_res);
 565                 return WERR_FOOBAR;
 566         }
 567
 568         talloc_free(schema_res);
 569
 570         if (blob->version != PREFIX_MAP_VERSION_DSDB) {
 571                 DEBUG(0,("dsdb_read_prefixes_from_ldb: blob->version incorect\n"));
 572                 talloc_free(blob);
 573                 return WERR_FOOBAR;
 574         }
 575
 576         *num_prefixes = blob->ctr.dsdb.num_mappings;
 577         *prefixes = talloc_array(mem_ctx, struct dsdb_schema_oid_prefix, *num_prefixes);
 578         if(!(*prefixes)) {
 579                 talloc_free(blob);
 580                 return WERR_NOMEM;
 581         }
 582         for (i=0; i < blob->ctr.dsdb.num_mappings; i++) {
 583                 char *oid;
 584                 (*prefixes)[i].id = blob->ctr.dsdb.mappings[i].id_prefix<<16;
 585                 oid = talloc_strdup(mem_ctx, blob->ctr.dsdb.mappings[i].oid.oid);
 586                 (*prefixes)[i].oid = talloc_asprintf_append(oid, ".");
 587                 (*prefixes)[i].oid_len = strlen((*prefixes)[i].oid);
 588         }
 589
 590         talloc_free(blob);
 591         return WERR_OK;
 592 }
 593
 594 /*
 595   this will be replaced with something that looks at the right part of
 596   the schema once we know where unique indexing information is hidden
 597  */
 598 static bool dsdb_schema_unique_attribute(const char *attr)
 599 {
 600         const char *attrs[] = { "objectGUID", "objectSID" , NULL };
 601         int i;
 602         for (i=0;attrs[i];i++) {
 603                 if (strcasecmp(attr, attrs[i]) == 0) {
 604                         return true;
 605                 }
 606         }
 607         return false;
 608 }
 609
 610
 611 /*
 612   setup the ldb_schema_attribute field for a dsdb_attribute
 613  */
 614 static int dsdb_schema_setup_ldb_schema_attribute(struct ldb_context *ldb,
 615                                                   struct dsdb_attribute *attr)
 616 {
 617         const char *syntax = attr->syntax->ldb_syntax;
 618         const struct ldb_schema_syntax *s;
 619         struct ldb_schema_attribute *a;
 620
 621         if (!syntax) {
 622                 syntax = attr->syntax->ldap_oid;
 623         }
 624
 625         s = ldb_samba_syntax_by_lDAPDisplayName(ldb, attr->lDAPDisplayName);
 626         if (s == NULL) {
 627                 s = ldb_samba_syntax_by_name(ldb, syntax);
 628         }
 629         if (s == NULL) {
 630                 s = ldb_standard_syntax_by_name(ldb, syntax);
 631         }
 632
 633         if (s == NULL) {
 634                 return LDB_ERR_OPERATIONS_ERROR;
 635         }
 636
 637         attr->ldb_schema_attribute = a = talloc(attr, struct ldb_schema_attribute);
 638         if (attr->ldb_schema_attribute == NULL) {
 639                 ldb_oom(ldb);
 640                 return LDB_ERR_OPERATIONS_ERROR;
 641         }
 642
 643         a->name = attr->lDAPDisplayName;
 644         a->flags = 0;
 645         a->syntax = s;
 646
 647         if (dsdb_schema_unique_attribute(a->name)) {
 648                 a->flags |= LDB_ATTR_FLAG_UNIQUE_INDEX;
 649         }
 650
 651         return LDB_SUCCESS;
 652 }
 653
 654
 655 #define GET_STRING_LDB(msg, attr, mem_ctx, p, elem, strict) do { \
 656         const struct ldb_val *get_string_val = ldb_msg_find_ldb_val(msg, attr); \
 657         if (get_string_val == NULL) { \
 658                 if (strict) {                                     \
 659                         d_printf("%s: %s == NULL\n", __location__, attr); \
 660                         return WERR_INVALID_PARAM;                      \
 661                 } else {                                                \
 662                         (p)->elem = NULL;                               \
 663                 }                                                       \
 664         } else {                                                        \
 665                 (p)->elem = talloc_strndup(mem_ctx,                     \
 666                                            (const char *)get_string_val->data, \
 667                                            get_string_val->length); \
 668                 if (!(p)->elem) {                                       \
 669                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 670                         return WERR_NOMEM;                              \
 671                 }                                                       \
 672         }                                                               \
 673 } while (0)
 674
 675 #define GET_STRING_LIST_LDB(msg, attr, mem_ctx, p, elem, strict) do {   \
 676         int get_string_list_counter;                                    \
 677         struct ldb_message_element *get_string_list_el = ldb_msg_find_element(msg, attr); \
 678         if (get_string_list_el == NULL) {                               \
 679                 if (strict) {                                           \
 680                         d_printf("%s: %s == NULL\n", __location__, attr); \
 681                         return WERR_INVALID_PARAM;                      \
 682                 } else {                                                \
 683                         (p)->elem = NULL;                               \
 684                         break;                                          \
 685                 }                                                       \
 686         }                                                               \
 687         (p)->elem = talloc_array(mem_ctx, const char *, get_string_list_el->num_values + 1); \
 688         for (get_string_list_counter=0;                                 \
 689              get_string_list_counter < get_string_list_el->num_values;  \
 690              get_string_list_counter++) {                               \
 691                 (p)->elem[get_string_list_counter] = talloc_strndup((p)->elem, \
 692                                                                     (const char *)get_string_list_el->values[get_string_list_counter].data, \
 693                                                                     get_string_list_el->values[get_string_list_counter].length); \
 694                 if (!(p)->elem[get_string_list_counter]) {              \
 695                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 696                         return WERR_NOMEM;                              \
 697                 }                                                       \
 698                 (p)->elem[get_string_list_counter+1] = NULL;            \
 699         }                                                               \
 700         talloc_steal(mem_ctx, (p)->elem);                               \
 701 } while (0)
 702
 703 #define GET_BOOL_LDB(msg, attr, p, elem, strict) do { \
 704         const char *str; \
 705         str = samdb_result_string(msg, attr, NULL);\
 706         if (str == NULL) { \
 707                 if (strict) { \
 708                         d_printf("%s: %s == NULL\n", __location__, attr); \
 709                         return WERR_INVALID_PARAM; \
 710                 } else { \
 711                         (p)->elem = false; \
 712                 } \
 713         } else if (strcasecmp("TRUE", str) == 0) { \
 714                 (p)->elem = true; \
 715         } else if (strcasecmp("FALSE", str) == 0) { \
 716                 (p)->elem = false; \
 717         } else { \
 718                 d_printf("%s: %s == %s\n", __location__, attr, str); \
 719                 return WERR_INVALID_PARAM; \
 720         } \
 721 } while (0)
 722
 723 #define GET_UINT32_LDB(msg, attr, p, elem) do { \
 724         (p)->elem = samdb_result_uint(msg, attr, 0);\
 725 } while (0)
 726
 727 #define GET_UINT32_PTR_LDB(msg, attr, p, elem) do { \
 728         uint64_t _v = samdb_result_uint64(msg, attr, UINT64_MAX);\
 729         if (_v == UINT64_MAX) { \
 730                 (p)->elem = NULL; \
 731         } else if (_v > UINT32_MAX) { \
 732                 d_printf("%s: %s == 0x%llX\n", __location__, \
 733                          attr, (unsigned long long)_v); \
 734                 return WERR_INVALID_PARAM; \
 735         } else { \
 736                 (p)->elem = talloc(mem_ctx, uint32_t); \
 737                 if (!(p)->elem) { \
 738                         d_printf("%s: talloc failed for %s\n", __location__, attr); \
 739                         return WERR_NOMEM; \
 740                 } \
 741                 *(p)->elem = (uint32_t)_v; \
 742         } \
 743 } while (0)
 744
 745 #define GET_GUID_LDB(msg, attr, p, elem) do { \
 746         (p)->elem = samdb_result_guid(msg, attr);\
 747 } while (0)
 748
 749 #define GET_BLOB_LDB(msg, attr, mem_ctx, p, elem) do { \
 750         const struct ldb_val *_val;\
 751         _val = ldb_msg_find_ldb_val(msg, attr);\
 752         if (_val) {\
 753                 (p)->elem = *_val;\
 754                 talloc_steal(mem_ctx, (p)->elem.data);\
 755         } else {\
 756                 ZERO_STRUCT((p)->elem);\
 757         }\
 758 } while (0)
 759
 760 WERROR dsdb_attribute_from_ldb(struct ldb_context *ldb,
 761                                const struct dsdb_schema *schema,
 762                                struct ldb_message *msg,
 763                                TALLOC_CTX *mem_ctx,
 764                                struct dsdb_attribute *attr)
 765 {
 766         WERROR status;
 767
 768         GET_STRING_LDB(msg, "cn", mem_ctx, attr, cn, false);
 769         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
 770         GET_STRING_LDB(msg, "attributeID", mem_ctx, attr, attributeID_oid, true);
 771         if (schema->num_prefixes == 0) {
 772                 /* set an invalid value */
 773                 attr->attributeID_id = 0xFFFFFFFF;
 774         } else {
 775                 status = dsdb_map_oid2int(schema, attr->attributeID_oid, &attr->attributeID_id);
 776                 if (!W_ERROR_IS_OK(status)) {
 777                         DEBUG(0,("%s: '%s': unable to map attributeID %s: %s\n",
 778                                 __location__, attr->lDAPDisplayName, attr->attributeID_oid,
 779                                 win_errstr(status)));
 780                         return status;
 781                 }
 782         }
 783         GET_GUID_LDB(msg, "schemaIDGUID", attr, schemaIDGUID);
 784         GET_UINT32_LDB(msg, "mAPIID", attr, mAPIID);
 785
 786         GET_GUID_LDB(msg, "attributeSecurityGUID", attr, attributeSecurityGUID);
 787
 788         GET_UINT32_LDB(msg, "searchFlags", attr, searchFlags);
 789         GET_UINT32_LDB(msg, "systemFlags", attr, systemFlags);
 790         GET_BOOL_LDB(msg, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
 791         GET_UINT32_LDB(msg, "linkID", attr, linkID);
 792
 793         GET_STRING_LDB(msg, "attributeSyntax", mem_ctx, attr, attributeSyntax_oid, true);
 794         if (schema->num_prefixes == 0) {
 795                 /* set an invalid value */
 796                 attr->attributeSyntax_id = 0xFFFFFFFF;
 797         } else {
 798                 status = dsdb_map_oid2int(schema, attr->attributeSyntax_oid, &attr->attributeSyntax_id);
 799                 if (!W_ERROR_IS_OK(status)) {
 800                         DEBUG(0,("%s: '%s': unable to map attributeSyntax_ %s: %s\n",
 801                                 __location__, attr->lDAPDisplayName, attr->attributeSyntax_oid,
 802                                 win_errstr(status)));
 803                         return status;
 804                 }
 805         }
 806         GET_UINT32_LDB(msg, "oMSyntax", attr, oMSyntax);
 807         GET_BLOB_LDB(msg, "oMObjectClass", mem_ctx, attr, oMObjectClass);
 808
 809         GET_BOOL_LDB(msg, "isSingleValued", attr, isSingleValued, true);
 810         GET_UINT32_PTR_LDB(msg, "rangeLower", attr, rangeLower);
 811         GET_UINT32_PTR_LDB(msg, "rangeUpper", attr, rangeUpper);
 812         GET_BOOL_LDB(msg, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
 813
 814         GET_UINT32_LDB(msg, "schemaFlagsEx", attr, schemaFlagsEx);
 815         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
 816
 817         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
 818         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
 819         GET_STRING_LDB(msg, "adminDescription", mem_ctx, attr, adminDescription, false);
 820         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, attr, classDisplayName, false);
 821         GET_BOOL_LDB(msg, "isEphemeral", attr, isEphemeral, false);
 822         GET_BOOL_LDB(msg, "isDefunct", attr, isDefunct, false);
 823         GET_BOOL_LDB(msg, "systemOnly", attr, systemOnly, false);
 824
 825         attr->syntax = dsdb_syntax_for_attribute(attr);
 826         if (!attr->syntax) {
 827                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 828         }
 829
 830         if (dsdb_schema_setup_ldb_schema_attribute(ldb, attr) != LDB_SUCCESS) {
 831                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 832         }
 833
 834         return WERR_OK;
 835 }
 836
 837 WERROR dsdb_class_from_ldb(const struct dsdb_schema *schema,
 838                            struct ldb_message *msg,
 839                            TALLOC_CTX *mem_ctx,
 840                            struct dsdb_class *obj)
 841 {
 842         WERROR status;
 843
 844         GET_STRING_LDB(msg, "cn", mem_ctx, obj, cn, false);
 845         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
 846         GET_STRING_LDB(msg, "governsID", mem_ctx, obj, governsID_oid, true);
 847         if (schema->num_prefixes == 0) {
 848                 /* set an invalid value */
 849                 obj->governsID_id = 0xFFFFFFFF;
 850         } else {
 851                 status = dsdb_map_oid2int(schema, obj->governsID_oid, &obj->governsID_id);
 852                 if (!W_ERROR_IS_OK(status)) {
 853                         DEBUG(0,("%s: '%s': unable to map governsID %s: %s\n",
 854                                 __location__, obj->lDAPDisplayName, obj->governsID_oid,
 855                                 win_errstr(status)));
 856                         return status;
 857                 }
 858         }
 859         GET_GUID_LDB(msg, "schemaIDGUID", obj, schemaIDGUID);
 860
 861         GET_UINT32_LDB(msg, "objectClassCategory", obj, objectClassCategory);
 862         GET_STRING_LDB(msg, "rDNAttID", mem_ctx, obj, rDNAttID, false);
 863         GET_STRING_LDB(msg, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
 864
 865         GET_STRING_LDB(msg, "subClassOf", mem_ctx, obj, subClassOf, true);
 866
 867         GET_STRING_LIST_LDB(msg, "systemAuxiliaryClass", mem_ctx, obj, systemAuxiliaryClass, false);
 868         GET_STRING_LIST_LDB(msg, "auxiliaryClass", mem_ctx, obj, auxiliaryClass, false);
 869
 870         GET_STRING_LIST_LDB(msg, "systemMustContain", mem_ctx, obj, systemMustContain, false);
 871         GET_STRING_LIST_LDB(msg, "systemMayContain", mem_ctx, obj, systemMayContain, false);
 872         GET_STRING_LIST_LDB(msg, "mustContain", mem_ctx, obj, mustContain, false);
 873         GET_STRING_LIST_LDB(msg, "mayContain", mem_ctx, obj, mayContain, false);
 874
 875         GET_STRING_LIST_LDB(msg, "systemPossSuperiors", mem_ctx, obj, systemPossSuperiors, false);
 876         GET_STRING_LIST_LDB(msg, "possSuperiors", mem_ctx, obj, possSuperiors, false);
 877
 878         GET_STRING_LDB(msg, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
 879
 880         GET_UINT32_LDB(msg, "schemaFlagsEx", obj, schemaFlagsEx);
 881         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
 882
 883         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
 884         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
 885         GET_STRING_LDB(msg, "adminDescription", mem_ctx, obj, adminDescription, false);
 886         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, obj, classDisplayName, false);
 887         GET_BOOL_LDB(msg, "defaultHidingValue", obj, defaultHidingValue, false);
 888         GET_BOOL_LDB(msg, "isDefunct", obj, isDefunct, false);
 889         GET_BOOL_LDB(msg, "systemOnly", obj, systemOnly, false);
 890
 891         return WERR_OK;
 892 }
 893
 894 #define dsdb_oom(error_string, mem_ctx) *error_string = talloc_asprintf(mem_ctx, "dsdb out of memory at %s:%d\n", __FILE__, __LINE__)
 895
 896 /*
 897  Create a DSDB schema from the ldb results provided.  This is called
 898  directly when the schema is provisioned from an on-disk LDIF file, or
 899  from dsdb_schema_from_schema_dn below
 900 */
 901
 902 int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 903                                  struct smb_iconv_convenience *iconv_convenience,
 904                                  struct ldb_result *schema_res,
 905                                  struct ldb_result *attrs_res, struct ldb_result *objectclass_res,
 906                                  struct dsdb_schema **schema_out,
 907                                  char **error_string)
 908 {
 909         WERROR status;
 910         uint32_t i;
 911         const struct ldb_val *prefix_val;
 912         const struct ldb_val *info_val;
 913         struct ldb_val info_val_default;
 914         struct dsdb_schema *schema;
 915
 916         schema = dsdb_new_schema(mem_ctx, iconv_convenience);
 917         if (!schema) {
 918                 dsdb_oom(error_string, mem_ctx);
 919                 return LDB_ERR_OPERATIONS_ERROR;
 920         }
 921
 922         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 923         if (!prefix_val) {
 924                 *error_string = talloc_asprintf(mem_ctx,
 925                                                 "schema_fsmo_init: no prefixMap attribute found");
 926                 return LDB_ERR_CONSTRAINT_VIOLATION;
 927         }
 928         info_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "schemaInfo");
 929         if (!info_val) {
 930                 info_val_default = strhex_to_data_blob(mem_ctx, "FF0000000000000000000000000000000000000000");
 931                 if (!info_val_default.data) {
 932                         dsdb_oom(error_string, mem_ctx);
 933                         return LDB_ERR_OPERATIONS_ERROR;
 934                 }
 935                 info_val = &info_val_default;
 936         }
 937
 938         status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
 939         if (!W_ERROR_IS_OK(status)) {
 940                 *error_string = talloc_asprintf(mem_ctx,
 941                               "schema_fsmo_init: failed to load oid mappings: %s",
 942                               win_errstr(status));
 943                 return LDB_ERR_CONSTRAINT_VIOLATION;
 944         }
 945
 946         for (i=0; i < attrs_res->count; i++) {
 947                 struct dsdb_attribute *sa;
 948
 949                 sa = talloc_zero(schema, struct dsdb_attribute);
 950                 if (!sa) {
 951                         dsdb_oom(error_string, mem_ctx);
 952                         return LDB_ERR_OPERATIONS_ERROR;
 953                 }
 954
 955                 status = dsdb_attribute_from_ldb(ldb, schema, attrs_res->msgs[i], sa, sa);
 956                 if (!W_ERROR_IS_OK(status)) {
 957                         *error_string = talloc_asprintf(mem_ctx,
 958                                       "schema_fsmo_init: failed to load attribute definition: %s:%s",
 959                                       ldb_dn_get_linearized(attrs_res->msgs[i]->dn),
 960                                       win_errstr(status));
 961                         return LDB_ERR_CONSTRAINT_VIOLATION;
 962                 }
 963
 964                 DLIST_ADD_END(schema->attributes, sa, struct dsdb_attribute *);
 965         }
 966
 967         for (i=0; i < objectclass_res->count; i++) {
 968                 struct dsdb_class *sc;
 969
 970                 sc = talloc_zero(schema, struct dsdb_class);
 971                 if (!sc) {
 972                         dsdb_oom(error_string, mem_ctx);
 973                         return LDB_ERR_OPERATIONS_ERROR;
 974                 }
 975
 976                 status = dsdb_class_from_ldb(schema, objectclass_res->msgs[i], sc, sc);
 977                 if (!W_ERROR_IS_OK(status)) {
 978                         *error_string = talloc_asprintf(mem_ctx,
 979                                       "schema_fsmo_init: failed to load class definition: %s:%s",
 980                                       ldb_dn_get_linearized(objectclass_res->msgs[i]->dn),
 981                                       win_errstr(status));
 982                         return LDB_ERR_CONSTRAINT_VIOLATION;
 983                 }
 984
 985                 DLIST_ADD_END(schema->classes, sc, struct dsdb_class *);
 986         }
 987
 988         schema->fsmo.master_dn = ldb_msg_find_attr_as_dn(ldb, schema, schema_res->msgs[0], "fSMORoleOwner");
 989         if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), schema->fsmo.master_dn) == 0) {
 990                 schema->fsmo.we_are_master = true;
 991         } else {
 992                 schema->fsmo.we_are_master = false;
 993         }
 994
 995         DEBUG(5, ("schema_fsmo_init: we are master: %s\n",
 996                   (schema->fsmo.we_are_master?"yes":"no")));
 997
 998         *schema_out = schema;
 999         return LDB_SUCCESS;
1000 }
1001
1002 /*
1003   Given an LDB, and the DN, return a populated schema
1004 */
1005
1006 int dsdb_schema_from_schema_dn(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
1007                                struct smb_iconv_convenience *iconv_convenience,
1008                                struct ldb_dn *schema_dn,
1009                                struct dsdb_schema **schema,
1010                                char **error_string_out)
1011 {
1012         TALLOC_CTX *tmp_ctx;
1013         char *error_string;
1014         int ret;
1015
1016         struct ldb_result *schema_res;
1017         struct ldb_result *a_res;
1018         struct ldb_result *c_res;
1019         static const char *schema_attrs[] = {
1020                 "prefixMap",
1021                 "schemaInfo",
1022                 "fSMORoleOwner",
1023                 NULL
1024         };
1025
1026         tmp_ctx = talloc_new(mem_ctx);
1027         if (!tmp_ctx) {
1028                 dsdb_oom(error_string_out, mem_ctx);
1029                 return LDB_ERR_OPERATIONS_ERROR;
1030         }
1031
1032         /*
1033          * setup the prefix mappings and schema info
1034          */
1035         ret = ldb_search(ldb, tmp_ctx, &schema_res,
1036                          schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
1037         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
1038                 talloc_free(tmp_ctx);
1039                 return ret;
1040         } else if (ret != LDB_SUCCESS) {
1041                 *error_string_out = talloc_asprintf(mem_ctx,
1042                                        "dsdb_schema: failed to search the schema head: %s",
1043                                        ldb_errstring(ldb));
1044                 talloc_free(tmp_ctx);
1045                 return ret;
1046         }
1047         if (schema_res->count != 1) {
1048                 *error_string_out = talloc_asprintf(mem_ctx,
1049                               "dsdb_schema: [%u] schema heads found on a base search",
1050                               schema_res->count);
1051                 talloc_free(tmp_ctx);
1052                 return LDB_ERR_CONSTRAINT_VIOLATION;
1053         }
1054
1055         /*
1056          * load the attribute definitions
1057          */
1058         ret = ldb_search(ldb, tmp_ctx, &a_res,
1059                          schema_dn, LDB_SCOPE_ONELEVEL, NULL,
1060                          "(objectClass=attributeSchema)");
1061         if (ret != LDB_SUCCESS) {
1062                 *error_string_out = talloc_asprintf(mem_ctx,
1063                                        "dsdb_schema: failed to search attributeSchema objects: %s",
1064                                        ldb_errstring(ldb));
1065                 talloc_free(tmp_ctx);
1066                 return ret;
1067         }
1068
1069         /*
1070          * load the objectClass definitions
1071          */
1072         ret = ldb_search(ldb, tmp_ctx, &c_res,
1073                          schema_dn, LDB_SCOPE_ONELEVEL, NULL,
1074                          "(objectClass=classSchema)");
1075         if (ret != LDB_SUCCESS) {
1076                 *error_string_out = talloc_asprintf(mem_ctx,
1077                                        "dsdb_schema: failed to search attributeSchema objects: %s",
1078                                        ldb_errstring(ldb));
1079                 talloc_free(tmp_ctx);
1080                 return ret;
1081         }
1082
1083         ret = dsdb_schema_from_ldb_results(tmp_ctx, ldb,
1084                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
1085                                            schema_res, a_res, c_res, schema, &error_string);
1086         if (ret != LDB_SUCCESS) {
1087                 *error_string_out = talloc_asprintf(mem_ctx,
1088                                                     "dsdb_schema load failed: %s",
1089                                                     error_string);
1090                 talloc_free(tmp_ctx);
1091                 return ret;
1092         }
1093         talloc_steal(mem_ctx, *schema);
1094         talloc_free(tmp_ctx);
1095
1096         return LDB_SUCCESS;
1097 }
1098
1099
1100 static const struct {
1101         const char *name;
1102         const char *oid;
1103 } name_mappings[] = {
1104         { "cn",                                 "2.5.4.3" },
1105         { "name",                               "1.2.840.113556.1.4.1" },
1106         { "lDAPDisplayName",                    "1.2.840.113556.1.2.460" },
1107         { "attributeID",                        "1.2.840.113556.1.2.30" },
1108         { "schemaIDGUID",                       "1.2.840.113556.1.4.148" },
1109         { "mAPIID",                             "1.2.840.113556.1.2.49" },
1110         { "attributeSecurityGUID",              "1.2.840.113556.1.4.149" },
1111         { "searchFlags",                        "1.2.840.113556.1.2.334" },
1112         { "systemFlags",                        "1.2.840.113556.1.4.375" },
1113         { "isMemberOfPartialAttributeSet",      "1.2.840.113556.1.4.639" },
1114         { "linkID",                             "1.2.840.113556.1.2.50" },
1115         { "attributeSyntax",                    "1.2.840.113556.1.2.32" },
1116         { "oMSyntax",                           "1.2.840.113556.1.2.231" },
1117         { "oMObjectClass",                      "1.2.840.113556.1.2.218" },
1118         { "isSingleValued",                     "1.2.840.113556.1.2.33" },
1119         { "rangeLower",                         "1.2.840.113556.1.2.34" },
1120         { "rangeUpper",                         "1.2.840.113556.1.2.35" },
1121         { "extendedCharsAllowed",               "1.2.840.113556.1.2.380" },
1122         { "schemaFlagsEx",                      "1.2.840.113556.1.4.120" },
1123         { "msDs-Schema-Extensions",             "1.2.840.113556.1.4.1440" },
1124         { "showInAdvancedViewOnly",             "1.2.840.113556.1.2.169" },
1125         { "adminDisplayName",                   "1.2.840.113556.1.2.194" },
1126         { "adminDescription",                   "1.2.840.113556.1.2.226" },
1127         { "classDisplayName",                   "1.2.840.113556.1.4.610" },
1128         { "isEphemeral",                        "1.2.840.113556.1.4.1212" },
1129         { "isDefunct",                          "1.2.840.113556.1.4.661" },
1130         { "systemOnly",                         "1.2.840.113556.1.4.170" },
1131         { "governsID",                          "1.2.840.113556.1.2.22" },
1132         { "objectClassCategory",                "1.2.840.113556.1.2.370" },
1133         { "rDNAttID",                           "1.2.840.113556.1.2.26" },
1134         { "defaultObjectCategory",              "1.2.840.113556.1.4.783" },
1135         { "subClassOf",                         "1.2.840.113556.1.2.21" },
1136         { "systemAuxiliaryClass",               "1.2.840.113556.1.4.198" },
1137         { "systemPossSuperiors",                "1.2.840.113556.1.4.195" },
1138         { "systemMustContain",                  "1.2.840.113556.1.4.197" },
1139         { "systemMayContain",                   "1.2.840.113556.1.4.196" },
1140         { "auxiliaryClass",                     "1.2.840.113556.1.2.351" },
1141         { "possSuperiors",                      "1.2.840.113556.1.2.8" },
1142         { "mustContain",                        "1.2.840.113556.1.2.24" },
1143         { "mayContain",                         "1.2.840.113556.1.2.25" },
1144         { "defaultSecurityDescriptor",          "1.2.840.113556.1.4.224" },
1145         { "defaultHidingValue",                 "1.2.840.113556.1.4.518" },
1146 };
1147
1148 static struct drsuapi_DsReplicaAttribute *dsdb_find_object_attr_name(struct dsdb_schema *schema,
1149                                                                      struct drsuapi_DsReplicaObject *obj,
1150                                                                      const char *name,
1151                                                                      uint32_t *idx)
1152 {
1153         WERROR status;
1154         uint32_t i, id;
1155         const char *oid = NULL;
1156
1157         for(i=0; i < ARRAY_SIZE(name_mappings); i++) {
1158                 if (strcmp(name_mappings[i].name, name) != 0) continue;
1159
1160                 oid = name_mappings[i].oid;
1161                 break;
1162         }
1163
1164         if (!oid) {
1165                 return NULL;
1166         }
1167
1168         status = dsdb_map_oid2int(schema, oid, &id);
1169         if (!W_ERROR_IS_OK(status)) {
1170                 return NULL;
1171         }
1172
1173         for (i=0; i < obj->attribute_ctr.num_attributes; i++) {
1174                 if (obj->attribute_ctr.attributes[i].attid != id) continue;
1175
1176                 if (idx) *idx = i;
1177                 return &obj->attribute_ctr.attributes[i];
1178         }
1179
1180         return NULL;
1181 }
1182
1183 #define GET_STRING_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1184         struct drsuapi_DsReplicaAttribute *_a; \
1185         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1186         if (strict && !_a) { \
1187                 d_printf("%s: %s == NULL\n", __location__, attr); \
1188                 return WERR_INVALID_PARAM; \
1189         } \
1190         if (strict && _a->value_ctr.num_values != 1) { \
1191                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1192                         _a->value_ctr.num_values); \
1193                 return WERR_INVALID_PARAM; \
1194         } \
1195         if (_a && _a->value_ctr.num_values >= 1) { \
1196                 size_t _ret; \
1197                 if (!convert_string_talloc_convenience(mem_ctx, s->iconv_convenience, CH_UTF16, CH_UNIX, \
1198                                              _a->value_ctr.values[0].blob->data, \
1199                                              _a->value_ctr.values[0].blob->length, \
1200                                              (void **)discard_const(&(p)->elem), &_ret, false)) { \
1201                         DEBUG(0,("%s: invalid data!\n", attr)); \
1202                         dump_data(0, \
1203                                      _a->value_ctr.values[0].blob->data, \
1204                                      _a->value_ctr.values[0].blob->length); \
1205                         return WERR_FOOBAR; \
1206                 } \
1207         } else { \
1208                 (p)->elem = NULL; \
1209         } \
1210 } while (0)
1211
1212 #define GET_UINT32_LIST_DS(s, r, attr, mem_ctx, p, elem) do { \
1213         int list_counter;                                       \
1214         struct drsuapi_DsReplicaAttribute *_a; \
1215         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1216         (p)->elem = _a ? talloc_array(mem_ctx, uint32_t, _a->value_ctr.num_values + 1) : NULL; \
1217         for (list_counter=0;                                    \
1218              _a && list_counter < _a->value_ctr.num_values;     \
1219              list_counter++) {                          \
1220                 if (_a->value_ctr.values[list_counter].blob->length != 4) { \
1221                         return WERR_INVALID_PARAM;                      \
1222                 }                                                       \
1223                 (p)->elem[list_counter] = IVAL(_a->value_ctr.values[list_counter].blob->data, 0); \
1224         }                                                               \
1225         if (_a) (p)->elem[list_counter] = 0;                            \
1226 } while (0)
1227
1228 #define GET_DN_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1229         struct drsuapi_DsReplicaAttribute *_a; \
1230         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1231         if (strict && !_a) { \
1232                 d_printf("%s: %s == NULL\n", __location__, attr); \
1233                 return WERR_INVALID_PARAM; \
1234         } \
1235         if (strict && _a->value_ctr.num_values != 1) { \
1236                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1237                         _a->value_ctr.num_values); \
1238                 return WERR_INVALID_PARAM; \
1239         } \
1240         if (strict && !_a->value_ctr.values[0].blob) { \
1241                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1242                 return WERR_INVALID_PARAM; \
1243         } \
1244         if (_a && _a->value_ctr.num_values >= 1 \
1245             && _a->value_ctr.values[0].blob) { \
1246                 struct drsuapi_DsReplicaObjectIdentifier3 _id3; \
1247                 enum ndr_err_code _ndr_err; \
1248                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1249                                                       mem_ctx, s->iconv_convenience, &_id3,\
1250                                                       (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);\
1251                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1252                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1253                         return ntstatus_to_werror(_nt_status); \
1254                 } \
1255                 (p)->elem = _id3.dn; \
1256         } else { \
1257                 (p)->elem = NULL; \
1258         } \
1259 } while (0)
1260
1261 #define GET_BOOL_DS(s, r, attr, p, elem, strict) do { \
1262         struct drsuapi_DsReplicaAttribute *_a; \
1263         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1264         if (strict && !_a) { \
1265                 d_printf("%s: %s == NULL\n", __location__, attr); \
1266                 return WERR_INVALID_PARAM; \
1267         } \
1268         if (strict && _a->value_ctr.num_values != 1) { \
1269                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1270                          (unsigned int)_a->value_ctr.num_values);       \
1271                 return WERR_INVALID_PARAM; \
1272         } \
1273         if (strict && !_a->value_ctr.values[0].blob) { \
1274                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1275                 return WERR_INVALID_PARAM; \
1276         } \
1277         if (strict && _a->value_ctr.values[0].blob->length != 4) { \
1278                 d_printf("%s: %s length == %u\n", __location__, attr, \
1279                          (unsigned int)_a->value_ctr.values[0].blob->length); \
1280                 return WERR_INVALID_PARAM; \
1281         } \
1282         if (_a && _a->value_ctr.num_values >= 1 \
1283             && _a->value_ctr.values[0].blob \
1284             && _a->value_ctr.values[0].blob->length == 4) { \
1285                 (p)->elem = (IVAL(_a->value_ctr.values[0].blob->data,0)?true:false);\
1286         } else { \
1287                 (p)->elem = false; \
1288         } \
1289 } while (0)
1290
1291 #define GET_UINT32_DS(s, r, attr, p, elem) do { \
1292         struct drsuapi_DsReplicaAttribute *_a; \
1293         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1294         if (_a && _a->value_ctr.num_values >= 1 \
1295             && _a->value_ctr.values[0].blob \
1296             && _a->value_ctr.values[0].blob->length == 4) { \
1297                 (p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1298         } else { \
1299                 (p)->elem = 0; \
1300         } \
1301 } while (0)
1302
1303 #define GET_UINT32_PTR_DS(s, r, attr, p, elem) do { \
1304         struct drsuapi_DsReplicaAttribute *_a; \
1305         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1306         if (_a && _a->value_ctr.num_values >= 1 \
1307             && _a->value_ctr.values[0].blob \
1308             && _a->value_ctr.values[0].blob->length == 4) { \
1309                 (p)->elem = talloc(mem_ctx, uint32_t); \
1310                 if (!(p)->elem) { \
1311                         d_printf("%s: talloc failed for %s\n", __location__, attr); \
1312                         return WERR_NOMEM; \
1313                 } \
1314                 *(p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1315         } else { \
1316                 (p)->elem = NULL; \
1317         } \
1318 } while (0)
1319
1320 #define GET_GUID_DS(s, r, attr, mem_ctx, p, elem) do { \
1321         struct drsuapi_DsReplicaAttribute *_a; \
1322         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1323         if (_a && _a->value_ctr.num_values >= 1 \
1324             && _a->value_ctr.values[0].blob \
1325             && _a->value_ctr.values[0].blob->length == 16) { \
1326                 enum ndr_err_code _ndr_err; \
1327                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1328                                                       mem_ctx, s->iconv_convenience, &(p)->elem, \
1329                                                       (ndr_pull_flags_fn_t)ndr_pull_GUID); \
1330                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1331                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1332                         return ntstatus_to_werror(_nt_status); \
1333                 } \
1334         } else { \
1335                 ZERO_STRUCT((p)->elem);\
1336         } \
1337 } while (0)
1338
1339 #define GET_BLOB_DS(s, r, attr, mem_ctx, p, elem) do { \
1340         struct drsuapi_DsReplicaAttribute *_a; \
1341         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1342         if (_a && _a->value_ctr.num_values >= 1 \
1343             && _a->value_ctr.values[0].blob) { \
1344                 (p)->elem = *_a->value_ctr.values[0].blob;\
1345                 talloc_steal(mem_ctx, (p)->elem.data); \
1346         } else { \
1347                 ZERO_STRUCT((p)->elem);\
1348         }\
1349 } while (0)
1350
1351 WERROR dsdb_attribute_from_drsuapi(struct ldb_context *ldb,
1352                                    struct dsdb_schema *schema,
1353                                    struct drsuapi_DsReplicaObject *r,
1354                                    TALLOC_CTX *mem_ctx,
1355                                    struct dsdb_attribute *attr)
1356 {
1357         WERROR status;
1358
1359         GET_STRING_DS(schema, r, "name", mem_ctx, attr, cn, true);
1360         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
1361         GET_UINT32_DS(schema, r, "attributeID", attr, attributeID_id);
1362         status = dsdb_map_int2oid(schema, attr->attributeID_id, mem_ctx, &attr->attributeID_oid);
1363         if (!W_ERROR_IS_OK(status)) {
1364                 DEBUG(0,("%s: '%s': unable to map attributeID 0x%08X: %s\n",
1365                         __location__, attr->lDAPDisplayName, attr->attributeID_id,
1366                         win_errstr(status)));
1367                 return status;
1368         }
1369         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, attr, schemaIDGUID);
1370         GET_UINT32_DS(schema, r, "mAPIID", attr, mAPIID);
1371
1372         GET_GUID_DS(schema, r, "attributeSecurityGUID", mem_ctx, attr, attributeSecurityGUID);
1373
1374         GET_UINT32_DS(schema, r, "searchFlags", attr, searchFlags);
1375         GET_UINT32_DS(schema, r, "systemFlags", attr, systemFlags);
1376         GET_BOOL_DS(schema, r, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
1377         GET_UINT32_DS(schema, r, "linkID", attr, linkID);
1378
1379         GET_UINT32_DS(schema, r, "attributeSyntax", attr, attributeSyntax_id);
1380         status = dsdb_map_int2oid(schema, attr->attributeSyntax_id, mem_ctx, &attr->attributeSyntax_oid);
1381         if (!W_ERROR_IS_OK(status)) {
1382                 DEBUG(0,("%s: '%s': unable to map attributeSyntax 0x%08X: %s\n",
1383                         __location__, attr->lDAPDisplayName, attr->attributeSyntax_id,
1384                         win_errstr(status)));
1385                 return status;
1386         }
1387         GET_UINT32_DS(schema, r, "oMSyntax", attr, oMSyntax);
1388         GET_BLOB_DS(schema, r, "oMObjectClass", mem_ctx, attr, oMObjectClass);
1389
1390         GET_BOOL_DS(schema, r, "isSingleValued", attr, isSingleValued, true);
1391         GET_UINT32_PTR_DS(schema, r, "rangeLower", attr, rangeLower);
1392         GET_UINT32_PTR_DS(schema, r, "rangeUpper", attr, rangeUpper);
1393         GET_BOOL_DS(schema, r, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
1394
1395         GET_UINT32_DS(schema, r, "schemaFlagsEx", attr, schemaFlagsEx);
1396         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
1397
1398         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
1399         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
1400         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, attr, adminDescription, false);
1401         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, attr, classDisplayName, false);
1402         GET_BOOL_DS(schema, r, "isEphemeral", attr, isEphemeral, false);
1403         GET_BOOL_DS(schema, r, "isDefunct", attr, isDefunct, false);
1404         GET_BOOL_DS(schema, r, "systemOnly", attr, systemOnly, false);
1405
1406         attr->syntax = dsdb_syntax_for_attribute(attr);
1407         if (!attr->syntax) {
1408                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
1409         }
1410
1411         if (dsdb_schema_setup_ldb_schema_attribute(ldb, attr) != LDB_SUCCESS) {
1412                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
1413         }
1414
1415         return WERR_OK;
1416 }
1417
1418 WERROR dsdb_class_from_drsuapi(struct dsdb_schema *schema,
1419                                struct drsuapi_DsReplicaObject *r,
1420                                TALLOC_CTX *mem_ctx,
1421                                struct dsdb_class *obj)
1422 {
1423         WERROR status;
1424
1425         GET_STRING_DS(schema, r, "name", mem_ctx, obj, cn, true);
1426         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
1427         GET_UINT32_DS(schema, r, "governsID", obj, governsID_id);
1428         status = dsdb_map_int2oid(schema, obj->governsID_id, mem_ctx, &obj->governsID_oid);
1429         if (!W_ERROR_IS_OK(status)) {
1430                 DEBUG(0,("%s: '%s': unable to map governsID 0x%08X: %s\n",
1431                         __location__, obj->lDAPDisplayName, obj->governsID_id,
1432                         win_errstr(status)));
1433                 return status;
1434         }
1435         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, obj, schemaIDGUID);
1436
1437         GET_UINT32_DS(schema, r, "objectClassCategory", obj, objectClassCategory);
1438         GET_STRING_DS(schema, r, "rDNAttID", mem_ctx, obj, rDNAttID, false);
1439         GET_DN_DS(schema, r, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
1440
1441         GET_UINT32_DS(schema, r, "subClassOf", obj, subClassOf_id);
1442
1443         GET_UINT32_LIST_DS(schema, r, "systemAuxiliaryClass", mem_ctx, obj, systemAuxiliaryClass_ids);
1444         GET_UINT32_LIST_DS(schema, r, "auxiliaryClass", mem_ctx, obj, auxiliaryClass_ids);
1445
1446         GET_UINT32_LIST_DS(schema, r, "systemMustContain", mem_ctx, obj, systemMustContain_ids);
1447         GET_UINT32_LIST_DS(schema, r, "systemMayContain", mem_ctx, obj, systemMayContain_ids);
1448         GET_UINT32_LIST_DS(schema, r, "mustContain", mem_ctx, obj, mustContain_ids);
1449         GET_UINT32_LIST_DS(schema, r, "mayContain", mem_ctx, obj, mayContain_ids);
1450
1451         GET_UINT32_LIST_DS(schema, r, "systemPossSuperiors", mem_ctx, obj, systemPossSuperiors_ids);
1452         GET_UINT32_LIST_DS(schema, r, "possSuperiors", mem_ctx, obj, possSuperiors_ids);
1453
1454         GET_STRING_DS(schema, r, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
1455
1456         GET_UINT32_DS(schema, r, "schemaFlagsEx", obj, schemaFlagsEx);
1457         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
1458
1459         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
1460         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
1461         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, obj, adminDescription, false);
1462         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, obj, classDisplayName, false);
1463         GET_BOOL_DS(schema, r, "defaultHidingValue", obj, defaultHidingValue, false);
1464         GET_BOOL_DS(schema, r, "isDefunct", obj, isDefunct, false);
1465         GET_BOOL_DS(schema, r, "systemOnly", obj, systemOnly, false);
1466
1467         return WERR_OK;
1468 }
1469