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(schema->schema_info);
 203         W_ERROR_HAVE_NO_MEMORY(schemaInfo->data);
 204         talloc_steal(mem_ctx, 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         /* Update prefixMap in ldb*/
 344         status = dsdb_write_prefixes_to_ldb(mem_ctx, ldb, num_prefixes, prefixes);
 345         if (!W_ERROR_IS_OK(status)) {
 346                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_write_prefixes_to_ldb: %s\n",
 347                         win_errstr(status)));
 348                 talloc_free(mem_ctx);
 349                 return status;
 350         }
 351
 352         talloc_free(mem_ctx);
 353         return status;
 354 }
 355
 356 WERROR dsdb_prefix_map_update(TALLOC_CTX *mem_ctx, uint32_t *num_prefixes, struct dsdb_schema_oid_prefix **prefixes, const char *oid)
 357 {
 358         uint32_t new_num_prefixes, index_new_prefix, new_entry_id;
 359         const char* lastDotOffset;
 360         size_t size;
 361
 362         new_num_prefixes = *num_prefixes + 1;
 363         index_new_prefix = *num_prefixes;
 364
 365         /*
 366          * this is the algorithm we use to create new mappings for now
 367          *
 368          * TODO: find what algorithm windows use
 369          */
 370         new_entry_id = (*num_prefixes)<<16;
 371
 372         /* Extract the prefix from the oid*/
 373         lastDotOffset = strrchr(oid, '.');
 374         if (lastDotOffset == NULL) {
 375                 DEBUG(0,("dsdb_prefix_map_update: failed to find the last dot\n"));
 376                 return WERR_NOT_FOUND;
 377         }
 378
 379         /* Calculate the size of the remainig string that should be the prefix of it */
 380         size = strlen(oid) - strlen(lastDotOffset);
 381         if (size <= 0) {
 382                 DEBUG(0,("dsdb_prefix_map_update: size of the remaining string invalid\n"));
 383                 return WERR_FOOBAR;
 384         }
 385         /* Add one because we need to copy the dot */
 386         size += 1;
 387
 388         /* Create a spot in the prefixMap for one more prefix*/
 389         (*prefixes) = talloc_realloc(mem_ctx, *prefixes, struct dsdb_schema_oid_prefix, new_num_prefixes);
 390         W_ERROR_HAVE_NO_MEMORY(*prefixes);
 391
 392         /* Add the new prefix entry*/
 393         (*prefixes)[index_new_prefix].id = new_entry_id;
 394         (*prefixes)[index_new_prefix].oid = talloc_strndup(mem_ctx, oid, size);
 395         (*prefixes)[index_new_prefix].oid_len = strlen((*prefixes)[index_new_prefix].oid);
 396
 397         /* Increase num_prefixes because new prefix has been added */
 398         ++(*num_prefixes);
 399
 400         return WERR_OK;
 401 }
 402
 403 WERROR dsdb_find_prefix_for_oid(uint32_t num_prefixes, const struct dsdb_schema_oid_prefix *prefixes, const char *in, uint32_t *out)
 404 {
 405         uint32_t i;
 406
 407         for (i=0; i < num_prefixes; i++) {
 408                 const char *val_str;
 409                 char *end_str;
 410                 unsigned val;
 411
 412                 if (strncmp(prefixes[i].oid, in, prefixes[i].oid_len) != 0) {
 413                         continue;
 414                 }
 415
 416                 val_str = in + prefixes[i].oid_len;
 417                 end_str = NULL;
 418                 errno = 0;
 419
 420                 if (val_str[0] == '\0') {
 421                         return WERR_INVALID_PARAM;
 422                 }
 423
 424                 /* two '.' chars are invalid */
 425                 if (val_str[0] == '.') {
 426                         return WERR_INVALID_PARAM;
 427                 }
 428
 429                 val = strtoul(val_str, &end_str, 10);
 430                 if (end_str[0] == '.' && end_str[1] != '\0') {
 431                         /*
 432                          * if it's a '.' and not the last char
 433                          * then maybe an other mapping apply
 434                          */
 435                         continue;
 436                 } else if (end_str[0] != '\0') {
 437                         return WERR_INVALID_PARAM;
 438                 } else if (val > 0xFFFF) {
 439                         return WERR_INVALID_PARAM;
 440                 }
 441
 442                 *out = prefixes[i].id | val;
 443                 return WERR_OK;
 444         }
 445
 446         return WERR_DS_NO_MSDS_INTID;
 447 }
 448
 449 WERROR dsdb_write_prefixes_to_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 450                                   uint32_t num_prefixes,
 451                                   const struct dsdb_schema_oid_prefix *prefixes)
 452 {
 453         struct ldb_message msg;
 454         struct ldb_dn *schema_dn;
 455         struct ldb_message_element el;
 456         struct prefixMapBlob pm;
 457         struct ldb_val ndr_blob;
 458         enum ndr_err_code ndr_err;
 459         uint32_t i;
 460         int ret;
 461
 462         schema_dn = samdb_schema_dn(ldb);
 463         if (!schema_dn) {
 464                 DEBUG(0,("dsdb_write_prefixes_to_ldb: no schema dn present\n"));
 465                 return WERR_FOOBAR;
 466         }
 467
 468         pm.version                      = PREFIX_MAP_VERSION_DSDB;
 469         pm.ctr.dsdb.num_mappings        = num_prefixes;
 470         pm.ctr.dsdb.mappings            = talloc_array(mem_ctx,
 471                                                 struct drsuapi_DsReplicaOIDMapping,
 472                                                 pm.ctr.dsdb.num_mappings);
 473         if (!pm.ctr.dsdb.mappings) {
 474                 return WERR_NOMEM;
 475         }
 476
 477         for (i=0; i < num_prefixes; i++) {
 478                 pm.ctr.dsdb.mappings[i].id_prefix = prefixes[i].id>>16;
 479                 pm.ctr.dsdb.mappings[i].oid.oid = talloc_strdup(pm.ctr.dsdb.mappings, prefixes[i].oid);
 480         }
 481
 482         ndr_err = ndr_push_struct_blob(&ndr_blob, ldb,
 483                                        lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 484                                        &pm,
 485                                        (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 486         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 487                 return WERR_FOOBAR;
 488         }
 489
 490         el.num_values = 1;
 491         el.values = &ndr_blob;
 492         el.flags = LDB_FLAG_MOD_REPLACE;
 493         el.name = talloc_strdup(mem_ctx, "prefixMap");
 494
 495         msg.dn = ldb_dn_copy(mem_ctx, schema_dn);
 496         msg.num_elements = 1;
 497         msg.elements = &el;
 498
 499         ret = ldb_modify( ldb, &msg );
 500         if (ret != 0) {
 501                 DEBUG(0,("dsdb_write_prefixes_to_ldb: ldb_modify failed\n"));
 502                 return WERR_FOOBAR;
 503         }
 504
 505         return WERR_OK;
 506 }
 507
 508 WERROR dsdb_read_prefixes_from_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, uint32_t* num_prefixes, struct dsdb_schema_oid_prefix **prefixes)
 509 {
 510         struct prefixMapBlob *blob;
 511         enum ndr_err_code ndr_err;
 512         uint32_t i;
 513         const struct ldb_val *prefix_val;
 514         struct ldb_dn *schema_dn;
 515         struct ldb_result *schema_res;
 516         int ret;
 517         static const char *schema_attrs[] = {
 518                 "prefixMap",
 519                 NULL
 520         };
 521
 522         schema_dn = samdb_schema_dn(ldb);
 523         if (!schema_dn) {
 524                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no schema dn present\n"));
 525                 return WERR_FOOBAR;
 526         }
 527
 528         ret = ldb_search(ldb, mem_ctx, &schema_res, schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
 529         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
 530                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefix map present\n"));
 531                 talloc_free(schema_res);
 532                 return WERR_FOOBAR;
 533         } else if (ret != LDB_SUCCESS) {
 534                 DEBUG(0,("dsdb_read_prefixes_from_ldb: failed to search the schema head\n"));
 535                 talloc_free(schema_res);
 536                 return WERR_FOOBAR;
 537         }
 538
 539         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 540         if (!prefix_val) {
 541                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefixMap attribute found\n"));
 542                 talloc_free(schema_res);
 543                 return WERR_FOOBAR;
 544         }
 545
 546         blob = talloc(mem_ctx, struct prefixMapBlob);
 547         W_ERROR_HAVE_NO_MEMORY(blob);
 548
 549         ndr_err = ndr_pull_struct_blob(prefix_val, blob,
 550                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 551                                            blob,
 552                                            (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 553         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 554                 DEBUG(0,("dsdb_read_prefixes_from_ldb: ndr_pull_struct_blob failed\n"));
 555                 talloc_free(blob);
 556                 talloc_free(schema_res);
 557                 return WERR_FOOBAR;
 558         }
 559
 560         talloc_free(schema_res);
 561
 562         if (blob->version != PREFIX_MAP_VERSION_DSDB) {
 563                 DEBUG(0,("dsdb_read_prefixes_from_ldb: blob->version incorect\n"));
 564                 talloc_free(blob);
 565                 return WERR_FOOBAR;
 566         }
 567
 568         *num_prefixes = blob->ctr.dsdb.num_mappings;
 569         *prefixes = talloc_array(mem_ctx, struct dsdb_schema_oid_prefix, *num_prefixes);
 570         if(!(*prefixes)) {
 571                 talloc_free(blob);
 572                 return WERR_NOMEM;
 573         }
 574         for (i=0; i < blob->ctr.dsdb.num_mappings; i++) {
 575                 char *oid;
 576                 (*prefixes)[i].id = blob->ctr.dsdb.mappings[i].id_prefix<<16;
 577                 oid = talloc_strdup(mem_ctx, blob->ctr.dsdb.mappings[i].oid.oid);
 578                 (*prefixes)[i].oid = talloc_asprintf_append(oid, ".");
 579                 (*prefixes)[i].oid_len = strlen(blob->ctr.dsdb.mappings[i].oid.oid);
 580         }
 581
 582         talloc_free(blob);
 583         return WERR_OK;
 584 }
 585
 586 #define GET_STRING_LDB(msg, attr, mem_ctx, p, elem, strict) do { \
 587         (p)->elem = samdb_result_string(msg, attr, NULL);\
 588         if (strict && (p)->elem == NULL) { \
 589                 d_printf("%s: %s == NULL\n", __location__, attr); \
 590                 return WERR_INVALID_PARAM; \
 591         } \
 592         talloc_steal(mem_ctx, (p)->elem); \
 593 } while (0)
 594
 595 #define GET_STRING_LIST_LDB(msg, attr, mem_ctx, p, elem, strict) do {   \
 596         int get_string_list_counter;                                    \
 597         struct ldb_message_element *get_string_list_el = ldb_msg_find_element(msg, attr); \
 598         if (get_string_list_el == NULL) {                               \
 599                 if (strict) {                                           \
 600                         d_printf("%s: %s == NULL\n", __location__, attr); \
 601                         return WERR_INVALID_PARAM;                      \
 602                 } else {                                                \
 603                         (p)->elem = NULL;                               \
 604                         break;                                          \
 605                 }                                                       \
 606         }                                                               \
 607         (p)->elem = talloc_array(mem_ctx, const char *, get_string_list_el->num_values + 1); \
 608         for (get_string_list_counter=0;                                 \
 609              get_string_list_counter < get_string_list_el->num_values;  \
 610              get_string_list_counter++) {                               \
 611                 (p)->elem[get_string_list_counter] = talloc_strndup((p)->elem, \
 612                                                                     (const char *)get_string_list_el->values[get_string_list_counter].data, \
 613                                                                     get_string_list_el->values[get_string_list_counter].length); \
 614                 if (!(p)->elem[get_string_list_counter]) {              \
 615                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 616                         return WERR_NOMEM;                              \
 617                 }                                                       \
 618                 (p)->elem[get_string_list_counter+1] = NULL;            \
 619         }                                                               \
 620         talloc_steal(mem_ctx, (p)->elem);                               \
 621 } while (0)
 622
 623 #define GET_BOOL_LDB(msg, attr, p, elem, strict) do { \
 624         const char *str; \
 625         str = samdb_result_string(msg, attr, NULL);\
 626         if (str == NULL) { \
 627                 if (strict) { \
 628                         d_printf("%s: %s == NULL\n", __location__, attr); \
 629                         return WERR_INVALID_PARAM; \
 630                 } else { \
 631                         (p)->elem = false; \
 632                 } \
 633         } else if (strcasecmp("TRUE", str) == 0) { \
 634                 (p)->elem = true; \
 635         } else if (strcasecmp("FALSE", str) == 0) { \
 636                 (p)->elem = false; \
 637         } else { \
 638                 d_printf("%s: %s == %s\n", __location__, attr, str); \
 639                 return WERR_INVALID_PARAM; \
 640         } \
 641 } while (0)
 642
 643 #define GET_UINT32_LDB(msg, attr, p, elem) do { \
 644         (p)->elem = samdb_result_uint(msg, attr, 0);\
 645 } while (0)
 646
 647 #define GET_GUID_LDB(msg, attr, p, elem) do { \
 648         (p)->elem = samdb_result_guid(msg, attr);\
 649 } while (0)
 650
 651 #define GET_BLOB_LDB(msg, attr, mem_ctx, p, elem) do { \
 652         const struct ldb_val *_val;\
 653         _val = ldb_msg_find_ldb_val(msg, attr);\
 654         if (_val) {\
 655                 (p)->elem = *_val;\
 656                 talloc_steal(mem_ctx, (p)->elem.data);\
 657         } else {\
 658                 ZERO_STRUCT((p)->elem);\
 659         }\
 660 } while (0)
 661
 662 WERROR dsdb_attribute_from_ldb(const struct dsdb_schema *schema,
 663                                struct ldb_message *msg,
 664                                TALLOC_CTX *mem_ctx,
 665                                struct dsdb_attribute *attr)
 666 {
 667         WERROR status;
 668
 669         GET_STRING_LDB(msg, "cn", mem_ctx, attr, cn, false);
 670         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
 671         GET_STRING_LDB(msg, "attributeID", mem_ctx, attr, attributeID_oid, true);
 672         if (schema->num_prefixes == 0) {
 673                 /* set an invalid value */
 674                 attr->attributeID_id = 0xFFFFFFFF;
 675         } else {
 676                 status = dsdb_map_oid2int(schema, attr->attributeID_oid, &attr->attributeID_id);
 677                 if (!W_ERROR_IS_OK(status)) {
 678                         DEBUG(0,("%s: '%s': unable to map attributeID %s: %s\n",
 679                                 __location__, attr->lDAPDisplayName, attr->attributeID_oid,
 680                                 win_errstr(status)));
 681                         return status;
 682                 }
 683         }
 684         GET_GUID_LDB(msg, "schemaIDGUID", attr, schemaIDGUID);
 685         GET_UINT32_LDB(msg, "mAPIID", attr, mAPIID);
 686
 687         GET_GUID_LDB(msg, "attributeSecurityGUID", attr, attributeSecurityGUID);
 688
 689         GET_UINT32_LDB(msg, "searchFlags", attr, searchFlags);
 690         GET_UINT32_LDB(msg, "systemFlags", attr, systemFlags);
 691         GET_BOOL_LDB(msg, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
 692         GET_UINT32_LDB(msg, "linkID", attr, linkID);
 693
 694         GET_STRING_LDB(msg, "attributeSyntax", mem_ctx, attr, attributeSyntax_oid, true);
 695         if (schema->num_prefixes == 0) {
 696                 /* set an invalid value */
 697                 attr->attributeSyntax_id = 0xFFFFFFFF;
 698         } else {
 699                 status = dsdb_map_oid2int(schema, attr->attributeSyntax_oid, &attr->attributeSyntax_id);
 700                 if (!W_ERROR_IS_OK(status)) {
 701                         DEBUG(0,("%s: '%s': unable to map attributeSyntax_ %s: %s\n",
 702                                 __location__, attr->lDAPDisplayName, attr->attributeSyntax_oid,
 703                                 win_errstr(status)));
 704                         return status;
 705                 }
 706         }
 707         GET_UINT32_LDB(msg, "oMSyntax", attr, oMSyntax);
 708         GET_BLOB_LDB(msg, "oMObjectClass", mem_ctx, attr, oMObjectClass);
 709
 710         GET_BOOL_LDB(msg, "isSingleValued", attr, isSingleValued, true);
 711         GET_UINT32_LDB(msg, "rangeLower", attr, rangeLower);
 712         GET_UINT32_LDB(msg, "rangeUpper", attr, rangeUpper);
 713         GET_BOOL_LDB(msg, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
 714
 715         GET_UINT32_LDB(msg, "schemaFlagsEx", attr, schemaFlagsEx);
 716         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
 717
 718         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
 719         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
 720         GET_STRING_LDB(msg, "adminDescription", mem_ctx, attr, adminDescription, false);
 721         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, attr, classDisplayName, false);
 722         GET_BOOL_LDB(msg, "isEphemeral", attr, isEphemeral, false);
 723         GET_BOOL_LDB(msg, "isDefunct", attr, isDefunct, false);
 724         GET_BOOL_LDB(msg, "systemOnly", attr, systemOnly, false);
 725
 726         attr->syntax = dsdb_syntax_for_attribute(attr);
 727         if (!attr->syntax) {
 728                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 729         }
 730
 731         return WERR_OK;
 732 }
 733
 734 WERROR dsdb_class_from_ldb(const struct dsdb_schema *schema,
 735                            struct ldb_message *msg,
 736                            TALLOC_CTX *mem_ctx,
 737                            struct dsdb_class *obj)
 738 {
 739         WERROR status;
 740
 741         GET_STRING_LDB(msg, "cn", mem_ctx, obj, cn, false);
 742         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
 743         GET_STRING_LDB(msg, "governsID", mem_ctx, obj, governsID_oid, true);
 744         if (schema->num_prefixes == 0) {
 745                 /* set an invalid value */
 746                 obj->governsID_id = 0xFFFFFFFF;
 747         } else {
 748                 status = dsdb_map_oid2int(schema, obj->governsID_oid, &obj->governsID_id);
 749                 if (!W_ERROR_IS_OK(status)) {
 750                         DEBUG(0,("%s: '%s': unable to map governsID %s: %s\n",
 751                                 __location__, obj->lDAPDisplayName, obj->governsID_oid,
 752                                 win_errstr(status)));
 753                         return status;
 754                 }
 755         }
 756         GET_GUID_LDB(msg, "schemaIDGUID", obj, schemaIDGUID);
 757
 758         GET_UINT32_LDB(msg, "objectClassCategory", obj, objectClassCategory);
 759         GET_STRING_LDB(msg, "rDNAttID", mem_ctx, obj, rDNAttID, false);
 760         GET_STRING_LDB(msg, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
 761
 762         GET_STRING_LDB(msg, "subClassOf", mem_ctx, obj, subClassOf, true);
 763
 764         GET_STRING_LIST_LDB(msg, "systemAuxiliaryClass", mem_ctx, obj, systemAuxiliaryClass, false);
 765         GET_STRING_LIST_LDB(msg, "auxiliaryClass", mem_ctx, obj, auxiliaryClass, false);
 766
 767         GET_STRING_LIST_LDB(msg, "systemMustContain", mem_ctx, obj, systemMustContain, false);
 768         GET_STRING_LIST_LDB(msg, "systemMayContain", mem_ctx, obj, systemMayContain, false);
 769         GET_STRING_LIST_LDB(msg, "mustContain", mem_ctx, obj, mustContain, false);
 770         GET_STRING_LIST_LDB(msg, "mayContain", mem_ctx, obj, mayContain, false);
 771
 772         GET_STRING_LIST_LDB(msg, "systemPossSuperiors", mem_ctx, obj, systemPossSuperiors, false);
 773         GET_STRING_LIST_LDB(msg, "possSuperiors", mem_ctx, obj, possSuperiors, false);
 774         GET_STRING_LIST_LDB(msg, "possibleInferiors", mem_ctx, obj, possibleInferiors, false);
 775
 776         GET_STRING_LDB(msg, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
 777
 778         GET_UINT32_LDB(msg, "schemaFlagsEx", obj, schemaFlagsEx);
 779         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
 780
 781         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
 782         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
 783         GET_STRING_LDB(msg, "adminDescription", mem_ctx, obj, adminDescription, false);
 784         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, obj, classDisplayName, false);
 785         GET_BOOL_LDB(msg, "defaultHidingValue", obj, defaultHidingValue, false);
 786         GET_BOOL_LDB(msg, "isDefunct", obj, isDefunct, false);
 787         GET_BOOL_LDB(msg, "systemOnly", obj, systemOnly, false);
 788
 789         return WERR_OK;
 790 }
 791
 792 #define dsdb_oom(error_string, mem_ctx) *error_string = talloc_asprintf(mem_ctx, "dsdb out of memory at %s:%d\n", __FILE__, __LINE__)
 793
 794 int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 795                                  struct smb_iconv_convenience *iconv_convenience,
 796                                  struct ldb_result *schema_res,
 797                                  struct ldb_result *attrs_res, struct ldb_result *objectclass_res,
 798                                  struct dsdb_schema **schema_out,
 799                                  char **error_string)
 800 {
 801         WERROR status;
 802         uint32_t i;
 803         const struct ldb_val *prefix_val;
 804         const struct ldb_val *info_val;
 805         struct ldb_val info_val_default;
 806         struct dsdb_schema *schema;
 807
 808         schema = dsdb_new_schema(mem_ctx, iconv_convenience);
 809         if (!schema) {
 810                 dsdb_oom(error_string, mem_ctx);
 811                 return LDB_ERR_OPERATIONS_ERROR;
 812         }
 813
 814         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 815         if (!prefix_val) {
 816                 *error_string = talloc_asprintf(mem_ctx,
 817                                                 "schema_fsmo_init: no prefixMap attribute found");
 818                 return LDB_ERR_CONSTRAINT_VIOLATION;
 819         }
 820         info_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "schemaInfo");
 821         if (!info_val) {
 822                 info_val_default = strhex_to_data_blob("FF0000000000000000000000000000000000000000");
 823                 if (!info_val_default.data) {
 824                         dsdb_oom(error_string, mem_ctx);
 825                         return LDB_ERR_OPERATIONS_ERROR;
 826                 }
 827                 talloc_steal(mem_ctx, info_val_default.data);
 828                 info_val = &info_val_default;
 829         }
 830
 831         status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
 832         if (!W_ERROR_IS_OK(status)) {
 833                 *error_string = talloc_asprintf(mem_ctx,
 834                               "schema_fsmo_init: failed to load oid mappings: %s",
 835                               win_errstr(status));
 836                 return LDB_ERR_CONSTRAINT_VIOLATION;
 837         }
 838
 839         for (i=0; i < attrs_res->count; i++) {
 840                 struct dsdb_attribute *sa;
 841
 842                 sa = talloc_zero(schema, struct dsdb_attribute);
 843                 if (!sa) {
 844                         dsdb_oom(error_string, mem_ctx);
 845                         return LDB_ERR_OPERATIONS_ERROR;
 846                 }
 847
 848                 status = dsdb_attribute_from_ldb(schema, attrs_res->msgs[i], sa, sa);
 849                 if (!W_ERROR_IS_OK(status)) {
 850                         *error_string = talloc_asprintf(mem_ctx,
 851                                       "schema_fsmo_init: failed to load attribute definition: %s:%s",
 852                                       ldb_dn_get_linearized(attrs_res->msgs[i]->dn),
 853                                       win_errstr(status));
 854                         return LDB_ERR_CONSTRAINT_VIOLATION;
 855                 }
 856
 857                 DLIST_ADD_END(schema->attributes, sa, struct dsdb_attribute *);
 858         }
 859
 860         for (i=0; i < objectclass_res->count; i++) {
 861                 struct dsdb_class *sc;
 862
 863                 sc = talloc_zero(schema, struct dsdb_class);
 864                 if (!sc) {
 865                         dsdb_oom(error_string, mem_ctx);
 866                         return LDB_ERR_OPERATIONS_ERROR;
 867                 }
 868
 869                 status = dsdb_class_from_ldb(schema, objectclass_res->msgs[i], sc, sc);
 870                 if (!W_ERROR_IS_OK(status)) {
 871                         *error_string = talloc_asprintf(mem_ctx,
 872                                       "schema_fsmo_init: failed to load class definition: %s:%s",
 873                                       ldb_dn_get_linearized(objectclass_res->msgs[i]->dn),
 874                                       win_errstr(status));
 875                         return LDB_ERR_CONSTRAINT_VIOLATION;
 876                 }
 877
 878                 DLIST_ADD_END(schema->classes, sc, struct dsdb_class *);
 879         }
 880
 881         schema->fsmo.master_dn = ldb_msg_find_attr_as_dn(ldb, schema, schema_res->msgs[0], "fSMORoleOwner");
 882         if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), schema->fsmo.master_dn) == 0) {
 883                 schema->fsmo.we_are_master = true;
 884         } else {
 885                 schema->fsmo.we_are_master = false;
 886         }
 887
 888         DEBUG(5, ("schema_fsmo_init: we are master: %s\n",
 889                   (schema->fsmo.we_are_master?"yes":"no")));
 890
 891         *schema_out = schema;
 892         return LDB_SUCCESS;
 893 }
 894
 895 /* This recursive load of the objectClasses presumes that they
 896  * everything is in a strict subClassOf hirarchy.
 897  *
 898  * We load this in order so we produce certain outputs (such as the
 899  * exported schema for openldap, and sorted objectClass attribute) 'in
 900  * order' */
 901
 902 static int fetch_oc_recursive(struct ldb_context *ldb, struct ldb_dn *schemadn,
 903                               TALLOC_CTX *mem_ctx,
 904                               struct ldb_result *search_from,
 905                               struct ldb_result *res_list)
 906 {
 907         int i;
 908         int ret = 0;
 909         for (i=0; i < search_from->count; i++) {
 910                 struct ldb_result *res;
 911                 const char *name = ldb_msg_find_attr_as_string(search_from->msgs[i],
 912                                                                "lDAPDisplayname", NULL);
 913
 914                 ret = ldb_search(ldb, mem_ctx, &res,
 915                                         schemadn, LDB_SCOPE_SUBTREE, NULL,
 916                                         "(&(&(objectClass=classSchema)(subClassOf=%s))(!(lDAPDisplayName=%s)))",
 917                                         name, name);
 918                 if (ret != LDB_SUCCESS) {
 919                         return ret;
 920                 }
 921
 922                 res_list->msgs = talloc_realloc(res_list, res_list->msgs,
 923                                                 struct ldb_message *, res_list->count + 2);
 924                 if (!res_list->msgs) {
 925                         return LDB_ERR_OPERATIONS_ERROR;
 926                 }
 927                 res_list->msgs[res_list->count] = talloc_move(res_list,
 928                                                               &search_from->msgs[i]);
 929                 res_list->count++;
 930                 res_list->msgs[res_list->count] = NULL;
 931
 932                 if (res->count > 0) {
 933                         ret = fetch_oc_recursive(ldb, schemadn, mem_ctx, res, res_list);
 934                 }
 935                 if (ret != LDB_SUCCESS) {
 936                         return ret;
 937                 }
 938         }
 939         return ret;
 940 }
 941
 942 static int fetch_objectclass_schema(struct ldb_context *ldb, struct ldb_dn *schemadn,
 943                                     TALLOC_CTX *mem_ctx,
 944                                     struct ldb_result **objectclasses_res,
 945                                     char **error_string)
 946 {
 947         TALLOC_CTX *local_ctx = talloc_new(mem_ctx);
 948         struct ldb_result *top_res, *ret_res;
 949         int ret;
 950         if (!local_ctx) {
 951                 return LDB_ERR_OPERATIONS_ERROR;
 952         }
 953
 954         /* Download 'top' */
 955         ret = ldb_search(ldb, local_ctx, &top_res,
 956                          schemadn, LDB_SCOPE_SUBTREE, NULL,
 957                          "(&(objectClass=classSchema)(lDAPDisplayName=top))");
 958         if (ret != LDB_SUCCESS) {
 959                 *error_string = talloc_asprintf(mem_ctx,
 960                                                 "dsdb_schema: failed to search for top classSchema object: %s",
 961                                                 ldb_errstring(ldb));
 962                 return ret;
 963         }
 964
 965         if (top_res->count != 1) {
 966                 *error_string = talloc_asprintf(mem_ctx,
 967                                                 "dsdb_schema: failed to find top classSchema object");
 968                 return LDB_ERR_NO_SUCH_OBJECT;
 969         }
 970
 971         ret_res = talloc_zero(local_ctx, struct ldb_result);
 972         if (!ret_res) {
 973                 return LDB_ERR_OPERATIONS_ERROR;
 974         }
 975
 976         ret = fetch_oc_recursive(ldb, schemadn, local_ctx, top_res, ret_res);
 977
 978         if (ret != LDB_SUCCESS) {
 979                 return ret;
 980         }
 981
 982         *objectclasses_res = talloc_move(mem_ctx, &ret_res);
 983         return ret;
 984 }
 985
 986 int dsdb_schema_from_schema_dn(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 987                                struct smb_iconv_convenience *iconv_convenience,
 988                                struct ldb_dn *schema_dn,
 989                                struct dsdb_schema **schema,
 990                                char **error_string_out)
 991 {
 992         TALLOC_CTX *tmp_ctx;
 993         char *error_string;
 994         int ret;
 995
 996         struct ldb_result *schema_res;
 997         struct ldb_result *a_res;
 998         struct ldb_result *c_res;
 999         static const char *schema_attrs[] = {
1000                 "prefixMap",
1001                 "schemaInfo",
1002                 "fSMORoleOwner",
1003                 NULL
1004         };
1005
1006         tmp_ctx = talloc_new(mem_ctx);
1007         if (!tmp_ctx) {
1008                 dsdb_oom(error_string_out, mem_ctx);
1009                 return LDB_ERR_OPERATIONS_ERROR;
1010         }
1011
1012         /*
1013          * setup the prefix mappings and schema info
1014          */
1015         ret = ldb_search(ldb, tmp_ctx, &schema_res,
1016                          schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
1017         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
1018                 talloc_free(tmp_ctx);
1019                 return ret;
1020         } else if (ret != LDB_SUCCESS) {
1021                 *error_string_out = talloc_asprintf(mem_ctx,
1022                                        "dsdb_schema: failed to search the schema head: %s",
1023                                        ldb_errstring(ldb));
1024                 talloc_free(tmp_ctx);
1025                 return ret;
1026         }
1027         if (schema_res->count != 1) {
1028                 *error_string_out = talloc_asprintf(mem_ctx,
1029                               "dsdb_schema: [%u] schema heads found on a base search",
1030                               schema_res->count);
1031                 talloc_free(tmp_ctx);
1032                 return LDB_ERR_CONSTRAINT_VIOLATION;
1033         }
1034
1035         /*
1036          * load the attribute definitions
1037          */
1038         ret = ldb_search(ldb, tmp_ctx, &a_res,
1039                          schema_dn, LDB_SCOPE_ONELEVEL, NULL,
1040                          "(objectClass=attributeSchema)");
1041         if (ret != LDB_SUCCESS) {
1042                 *error_string_out = talloc_asprintf(mem_ctx,
1043                                        "dsdb_schema: failed to search attributeSchema objects: %s",
1044                                        ldb_errstring(ldb));
1045                 talloc_free(tmp_ctx);
1046                 return ret;
1047         }
1048
1049         /*
1050          * load the objectClass definitions
1051          */
1052         ret = fetch_objectclass_schema(ldb, schema_dn, tmp_ctx, &c_res, &error_string);
1053         if (ret != LDB_SUCCESS) {
1054                 *error_string_out = talloc_asprintf(mem_ctx,
1055                                        "Failed to fetch objectClass schema elements: %s", error_string);
1056                 talloc_free(tmp_ctx);
1057                 return ret;
1058         }
1059
1060         ret = dsdb_schema_from_ldb_results(tmp_ctx, ldb,
1061                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
1062                                            schema_res, a_res, c_res, schema, &error_string);
1063         if (ret != LDB_SUCCESS) {
1064                 *error_string_out = talloc_asprintf(mem_ctx,
1065                                                     "dsdb_schema load failed: %s",
1066                                                     error_string);
1067                 talloc_free(tmp_ctx);
1068                 return ret;
1069         }
1070         talloc_steal(mem_ctx, *schema);
1071         talloc_free(tmp_ctx);
1072
1073         return LDB_SUCCESS;
1074 }
1075
1076
1077 static const struct {
1078         const char *name;
1079         const char *oid;
1080 } name_mappings[] = {
1081         { "cn",                                 "2.5.4.3" },
1082         { "name",                               "1.2.840.113556.1.4.1" },
1083         { "lDAPDisplayName",                    "1.2.840.113556.1.2.460" },
1084         { "attributeID",                        "1.2.840.113556.1.2.30" },
1085         { "schemaIDGUID",                       "1.2.840.113556.1.4.148" },
1086         { "mAPIID",                             "1.2.840.113556.1.2.49" },
1087         { "attributeSecurityGUID",              "1.2.840.113556.1.4.149" },
1088         { "searchFlags",                        "1.2.840.113556.1.2.334" },
1089         { "systemFlags",                        "1.2.840.113556.1.4.375" },
1090         { "isMemberOfPartialAttributeSet",      "1.2.840.113556.1.4.639" },
1091         { "linkID",                             "1.2.840.113556.1.2.50" },
1092         { "attributeSyntax",                    "1.2.840.113556.1.2.32" },
1093         { "oMSyntax",                           "1.2.840.113556.1.2.231" },
1094         { "oMObjectClass",                      "1.2.840.113556.1.2.218" },
1095         { "isSingleValued",                     "1.2.840.113556.1.2.33" },
1096         { "rangeLower",                         "1.2.840.113556.1.2.34" },
1097         { "rangeUpper",                         "1.2.840.113556.1.2.35" },
1098         { "extendedCharsAllowed",               "1.2.840.113556.1.2.380" },
1099         { "schemaFlagsEx",                      "1.2.840.113556.1.4.120" },
1100         { "msDs-Schema-Extensions",             "1.2.840.113556.1.4.1440" },
1101         { "showInAdvancedViewOnly",             "1.2.840.113556.1.2.169" },
1102         { "adminDisplayName",                   "1.2.840.113556.1.2.194" },
1103         { "adminDescription",                   "1.2.840.113556.1.2.226" },
1104         { "classDisplayName",                   "1.2.840.113556.1.4.610" },
1105         { "isEphemeral",                        "1.2.840.113556.1.4.1212" },
1106         { "isDefunct",                          "1.2.840.113556.1.4.661" },
1107         { "systemOnly",                         "1.2.840.113556.1.4.170" },
1108         { "governsID",                          "1.2.840.113556.1.2.22" },
1109         { "objectClassCategory",                "1.2.840.113556.1.2.370" },
1110         { "rDNAttID",                           "1.2.840.113556.1.2.26" },
1111         { "defaultObjectCategory",              "1.2.840.113556.1.4.783" },
1112         { "subClassOf",                         "1.2.840.113556.1.2.21" },
1113         { "systemAuxiliaryClass",               "1.2.840.113556.1.4.198" },
1114         { "systemPossSuperiors",                "1.2.840.113556.1.4.195" },
1115         { "systemMustContain",                  "1.2.840.113556.1.4.197" },
1116         { "systemMayContain",                   "1.2.840.113556.1.4.196" },
1117         { "auxiliaryClass",                     "1.2.840.113556.1.2.351" },
1118         { "possSuperiors",                      "1.2.840.113556.1.2.8" },
1119         { "mustContain",                        "1.2.840.113556.1.2.24" },
1120         { "mayContain",                         "1.2.840.113556.1.2.25" },
1121         { "defaultSecurityDescriptor",          "1.2.840.113556.1.4.224" },
1122         { "defaultHidingValue",                 "1.2.840.113556.1.4.518" },
1123 };
1124
1125 static struct drsuapi_DsReplicaAttribute *dsdb_find_object_attr_name(struct dsdb_schema *schema,
1126                                                                      struct drsuapi_DsReplicaObject *obj,
1127                                                                      const char *name,
1128                                                                      uint32_t *idx)
1129 {
1130         WERROR status;
1131         uint32_t i, id;
1132         const char *oid = NULL;
1133
1134         for(i=0; i < ARRAY_SIZE(name_mappings); i++) {
1135                 if (strcmp(name_mappings[i].name, name) != 0) continue;
1136
1137                 oid = name_mappings[i].oid;
1138                 break;
1139         }
1140
1141         if (!oid) {
1142                 return NULL;
1143         }
1144
1145         status = dsdb_map_oid2int(schema, oid, &id);
1146         if (!W_ERROR_IS_OK(status)) {
1147                 return NULL;
1148         }
1149
1150         for (i=0; i < obj->attribute_ctr.num_attributes; i++) {
1151                 if (obj->attribute_ctr.attributes[i].attid != id) continue;
1152
1153                 if (idx) *idx = i;
1154                 return &obj->attribute_ctr.attributes[i];
1155         }
1156
1157         return NULL;
1158 }
1159
1160 #define GET_STRING_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1161         struct drsuapi_DsReplicaAttribute *_a; \
1162         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1163         if (strict && !_a) { \
1164                 d_printf("%s: %s == NULL\n", __location__, attr); \
1165                 return WERR_INVALID_PARAM; \
1166         } \
1167         if (strict && _a->value_ctr.num_values != 1) { \
1168                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1169                         _a->value_ctr.num_values); \
1170                 return WERR_INVALID_PARAM; \
1171         } \
1172         if (_a && _a->value_ctr.num_values >= 1) { \
1173                 ssize_t _ret; \
1174                 _ret = convert_string_talloc(mem_ctx, s->iconv_convenience, CH_UTF16, CH_UNIX, \
1175                                              _a->value_ctr.values[0].blob->data, \
1176                                              _a->value_ctr.values[0].blob->length, \
1177                                              (void **)discard_const(&(p)->elem)); \
1178                 if (_ret == -1) { \
1179                         DEBUG(0,("%s: invalid data!\n", attr)); \
1180                         dump_data(0, \
1181                                      _a->value_ctr.values[0].blob->data, \
1182                                      _a->value_ctr.values[0].blob->length); \
1183                         return WERR_FOOBAR; \
1184                 } \
1185         } else { \
1186                 (p)->elem = NULL; \
1187         } \
1188 } while (0)
1189
1190 #define GET_DN_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1191         struct drsuapi_DsReplicaAttribute *_a; \
1192         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1193         if (strict && !_a) { \
1194                 d_printf("%s: %s == NULL\n", __location__, attr); \
1195                 return WERR_INVALID_PARAM; \
1196         } \
1197         if (strict && _a->value_ctr.num_values != 1) { \
1198                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1199                         _a->value_ctr.num_values); \
1200                 return WERR_INVALID_PARAM; \
1201         } \
1202         if (strict && !_a->value_ctr.values[0].blob) { \
1203                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1204                 return WERR_INVALID_PARAM; \
1205         } \
1206         if (_a && _a->value_ctr.num_values >= 1 \
1207             && _a->value_ctr.values[0].blob) { \
1208                 struct drsuapi_DsReplicaObjectIdentifier3 _id3; \
1209                 enum ndr_err_code _ndr_err; \
1210                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1211                                                       mem_ctx, s->iconv_convenience, &_id3,\
1212                                                       (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);\
1213                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1214                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1215                         return ntstatus_to_werror(_nt_status); \
1216                 } \
1217                 (p)->elem = _id3.dn; \
1218         } else { \
1219                 (p)->elem = NULL; \
1220         } \
1221 } while (0)
1222
1223 #define GET_BOOL_DS(s, r, attr, p, elem, strict) do { \
1224         struct drsuapi_DsReplicaAttribute *_a; \
1225         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1226         if (strict && !_a) { \
1227                 d_printf("%s: %s == NULL\n", __location__, attr); \
1228                 return WERR_INVALID_PARAM; \
1229         } \
1230         if (strict && _a->value_ctr.num_values != 1) { \
1231                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1232                          (unsigned int)_a->value_ctr.num_values);       \
1233                 return WERR_INVALID_PARAM; \
1234         } \
1235         if (strict && !_a->value_ctr.values[0].blob) { \
1236                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1237                 return WERR_INVALID_PARAM; \
1238         } \
1239         if (strict && _a->value_ctr.values[0].blob->length != 4) { \
1240                 d_printf("%s: %s length == %u\n", __location__, attr, \
1241                          (unsigned int)_a->value_ctr.values[0].blob->length); \
1242                 return WERR_INVALID_PARAM; \
1243         } \
1244         if (_a && _a->value_ctr.num_values >= 1 \
1245             && _a->value_ctr.values[0].blob \
1246             && _a->value_ctr.values[0].blob->length == 4) { \
1247                 (p)->elem = (IVAL(_a->value_ctr.values[0].blob->data,0)?true:false);\
1248         } else { \
1249                 (p)->elem = false; \
1250         } \
1251 } while (0)
1252
1253 #define GET_UINT32_DS(s, r, attr, p, elem) do { \
1254         struct drsuapi_DsReplicaAttribute *_a; \
1255         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1256         if (_a && _a->value_ctr.num_values >= 1 \
1257             && _a->value_ctr.values[0].blob \
1258             && _a->value_ctr.values[0].blob->length == 4) { \
1259                 (p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1260         } else { \
1261                 (p)->elem = 0; \
1262         } \
1263 } while (0)
1264
1265 #define GET_GUID_DS(s, r, attr, mem_ctx, p, elem) do { \
1266         struct drsuapi_DsReplicaAttribute *_a; \
1267         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1268         if (_a && _a->value_ctr.num_values >= 1 \
1269             && _a->value_ctr.values[0].blob \
1270             && _a->value_ctr.values[0].blob->length == 16) { \
1271                 enum ndr_err_code _ndr_err; \
1272                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1273                                                       mem_ctx, s->iconv_convenience, &(p)->elem, \
1274                                                       (ndr_pull_flags_fn_t)ndr_pull_GUID); \
1275                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1276                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1277                         return ntstatus_to_werror(_nt_status); \
1278                 } \
1279         } else { \
1280                 ZERO_STRUCT((p)->elem);\
1281         } \
1282 } while (0)
1283
1284 #define GET_BLOB_DS(s, r, attr, mem_ctx, p, elem) do { \
1285         struct drsuapi_DsReplicaAttribute *_a; \
1286         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1287         if (_a && _a->value_ctr.num_values >= 1 \
1288             && _a->value_ctr.values[0].blob) { \
1289                 (p)->elem = *_a->value_ctr.values[0].blob;\
1290                 talloc_steal(mem_ctx, (p)->elem.data); \
1291         } else { \
1292                 ZERO_STRUCT((p)->elem);\
1293         }\
1294 } while (0)
1295
1296 WERROR dsdb_attribute_from_drsuapi(struct dsdb_schema *schema,
1297                                    struct drsuapi_DsReplicaObject *r,
1298                                    TALLOC_CTX *mem_ctx,
1299                                    struct dsdb_attribute *attr)
1300 {
1301         WERROR status;
1302
1303         GET_STRING_DS(schema, r, "name", mem_ctx, attr, cn, true);
1304         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
1305         GET_UINT32_DS(schema, r, "attributeID", attr, attributeID_id);
1306         status = dsdb_map_int2oid(schema, attr->attributeID_id, mem_ctx, &attr->attributeID_oid);
1307         if (!W_ERROR_IS_OK(status)) {
1308                 DEBUG(0,("%s: '%s': unable to map attributeID 0x%08X: %s\n",
1309                         __location__, attr->lDAPDisplayName, attr->attributeID_id,
1310                         win_errstr(status)));
1311                 return status;
1312         }
1313         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, attr, schemaIDGUID);
1314         GET_UINT32_DS(schema, r, "mAPIID", attr, mAPIID);
1315
1316         GET_GUID_DS(schema, r, "attributeSecurityGUID", mem_ctx, attr, attributeSecurityGUID);
1317
1318         GET_UINT32_DS(schema, r, "searchFlags", attr, searchFlags);
1319         GET_UINT32_DS(schema, r, "systemFlags", attr, systemFlags);
1320         GET_BOOL_DS(schema, r, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
1321         GET_UINT32_DS(schema, r, "linkID", attr, linkID);
1322
1323         GET_UINT32_DS(schema, r, "attributeSyntax", attr, attributeSyntax_id);
1324         status = dsdb_map_int2oid(schema, attr->attributeSyntax_id, mem_ctx, &attr->attributeSyntax_oid);
1325         if (!W_ERROR_IS_OK(status)) {
1326                 DEBUG(0,("%s: '%s': unable to map attributeSyntax 0x%08X: %s\n",
1327                         __location__, attr->lDAPDisplayName, attr->attributeSyntax_id,
1328                         win_errstr(status)));
1329                 return status;
1330         }
1331         GET_UINT32_DS(schema, r, "oMSyntax", attr, oMSyntax);
1332         GET_BLOB_DS(schema, r, "oMObjectClass", mem_ctx, attr, oMObjectClass);
1333
1334         GET_BOOL_DS(schema, r, "isSingleValued", attr, isSingleValued, true);
1335         GET_UINT32_DS(schema, r, "rangeLower", attr, rangeLower);
1336         GET_UINT32_DS(schema, r, "rangeUpper", attr, rangeUpper);
1337         GET_BOOL_DS(schema, r, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
1338
1339         GET_UINT32_DS(schema, r, "schemaFlagsEx", attr, schemaFlagsEx);
1340         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
1341
1342         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
1343         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
1344         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, attr, adminDescription, false);
1345         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, attr, classDisplayName, false);
1346         GET_BOOL_DS(schema, r, "isEphemeral", attr, isEphemeral, false);
1347         GET_BOOL_DS(schema, r, "isDefunct", attr, isDefunct, false);
1348         GET_BOOL_DS(schema, r, "systemOnly", attr, systemOnly, false);
1349
1350         attr->syntax = dsdb_syntax_for_attribute(attr);
1351         if (!attr->syntax) {
1352                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
1353         }
1354
1355         return WERR_OK;
1356 }
1357
1358 WERROR dsdb_class_from_drsuapi(struct dsdb_schema *schema,
1359                                struct drsuapi_DsReplicaObject *r,
1360                                TALLOC_CTX *mem_ctx,
1361                                struct dsdb_class *obj)
1362 {
1363         WERROR status;
1364
1365         GET_STRING_DS(schema, r, "name", mem_ctx, obj, cn, true);
1366         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
1367         GET_UINT32_DS(schema, r, "governsID", obj, governsID_id);
1368         status = dsdb_map_int2oid(schema, obj->governsID_id, mem_ctx, &obj->governsID_oid);
1369         if (!W_ERROR_IS_OK(status)) {
1370                 DEBUG(0,("%s: '%s': unable to map governsID 0x%08X: %s\n",
1371                         __location__, obj->lDAPDisplayName, obj->governsID_id,
1372                         win_errstr(status)));
1373                 return status;
1374         }
1375         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, obj, schemaIDGUID);
1376
1377         GET_UINT32_DS(schema, r, "objectClassCategory", obj, objectClassCategory);
1378         GET_STRING_DS(schema, r, "rDNAttID", mem_ctx, obj, rDNAttID, false);
1379         GET_DN_DS(schema, r, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
1380
1381         GET_STRING_DS(schema, r, "subClassOf", mem_ctx, obj, subClassOf, true);
1382
1383         obj->systemAuxiliaryClass       = NULL;
1384         obj->systemPossSuperiors        = NULL;
1385         obj->systemMustContain          = NULL;
1386         obj->systemMayContain           = NULL;
1387
1388         obj->auxiliaryClass             = NULL;
1389         obj->possSuperiors              = NULL;
1390         obj->mustContain                = NULL;
1391         obj->mayContain                 = NULL;
1392
1393         obj->possibleInferiors          = NULL;
1394
1395         GET_STRING_DS(schema, r, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
1396
1397         GET_UINT32_DS(schema, r, "schemaFlagsEx", obj, schemaFlagsEx);
1398         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
1399
1400         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
1401         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
1402         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, obj, adminDescription, false);
1403         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, obj, classDisplayName, false);
1404         GET_BOOL_DS(schema, r, "defaultHidingValue", obj, defaultHidingValue, false);
1405         GET_BOOL_DS(schema, r, "isDefunct", obj, isDefunct, false);
1406         GET_BOOL_DS(schema, r, "systemOnly", obj, systemOnly, false);
1407
1408         return WERR_OK;
1409 }
1410