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 = ldb_msg_new(mem_ctx);
 462         struct ldb_dn *schema_dn;
 463         struct prefixMapBlob pm;
 464         struct ldb_val ndr_blob;
 465         enum ndr_err_code ndr_err;
 466         uint32_t i;
 467         int ret;
 468
 469         if (!msg) {
 470                 return WERR_NOMEM;
 471         }
 472
 473         schema_dn = samdb_schema_dn(ldb);
 474         if (!schema_dn) {
 475                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: no schema dn present\n"));
 476                 return WERR_FOOBAR;
 477         }
 478
 479         pm.version                      = PREFIX_MAP_VERSION_DSDB;
 480         pm.ctr.dsdb.num_mappings        = schema->num_prefixes;
 481         pm.ctr.dsdb.mappings            = talloc_array(msg,
 482                                                 struct drsuapi_DsReplicaOIDMapping,
 483                                                 pm.ctr.dsdb.num_mappings);
 484         if (!pm.ctr.dsdb.mappings) {
 485                 talloc_free(msg);
 486                 return WERR_NOMEM;
 487         }
 488
 489         for (i=0; i < schema->num_prefixes; i++) {
 490                 pm.ctr.dsdb.mappings[i].id_prefix = schema->prefixes[i].id>>16;
 491                 pm.ctr.dsdb.mappings[i].oid.oid = talloc_strdup(pm.ctr.dsdb.mappings, schema->prefixes[i].oid);
 492         }
 493
 494         ndr_err = ndr_push_struct_blob(&ndr_blob, msg,
 495                                        lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 496                                        &pm,
 497                                        (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 498         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 499                 talloc_free(msg);
 500                 return WERR_FOOBAR;
 501         }
 502
 503         msg->dn = schema_dn;
 504         ret = ldb_msg_add_value(msg, "prefixMap", &ndr_blob, NULL);
 505         if (ret != 0) {
 506                 talloc_free(msg);
 507                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: ldb_msg_add_value failed\n"));
 508                 return WERR_NOMEM;
 509         }
 510
 511         ret = samdb_replace( ldb, msg, msg );
 512         talloc_free(msg);
 513
 514         if (ret != 0) {
 515                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: samdb_replace failed\n"));
 516                 return WERR_FOOBAR;
 517         }
 518
 519         return WERR_OK;
 520 }
 521
 522 WERROR dsdb_read_prefixes_from_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, uint32_t* num_prefixes, struct dsdb_schema_oid_prefix **prefixes)
 523 {
 524         struct prefixMapBlob *blob;
 525         enum ndr_err_code ndr_err;
 526         uint32_t i;
 527         const struct ldb_val *prefix_val;
 528         struct ldb_dn *schema_dn;
 529         struct ldb_result *schema_res;
 530         int ret;
 531         static const char *schema_attrs[] = {
 532                 "prefixMap",
 533                 NULL
 534         };
 535
 536         schema_dn = samdb_schema_dn(ldb);
 537         if (!schema_dn) {
 538                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no schema dn present\n"));
 539                 return WERR_FOOBAR;
 540         }
 541
 542         ret = ldb_search(ldb, mem_ctx, &schema_res, schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
 543         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
 544                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefix map present\n"));
 545                 talloc_free(schema_res);
 546                 return WERR_FOOBAR;
 547         } else if (ret != LDB_SUCCESS) {
 548                 DEBUG(0,("dsdb_read_prefixes_from_ldb: failed to search the schema head\n"));
 549                 talloc_free(schema_res);
 550                 return WERR_FOOBAR;
 551         }
 552
 553         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 554         if (!prefix_val) {
 555                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefixMap attribute found\n"));
 556                 talloc_free(schema_res);
 557                 return WERR_FOOBAR;
 558         }
 559
 560         blob = talloc(mem_ctx, struct prefixMapBlob);
 561         W_ERROR_HAVE_NO_MEMORY(blob);
 562
 563         ndr_err = ndr_pull_struct_blob(prefix_val, blob,
 564                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
 565                                            blob,
 566                                            (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 567         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 568                 DEBUG(0,("dsdb_read_prefixes_from_ldb: ndr_pull_struct_blob failed\n"));
 569                 talloc_free(blob);
 570                 talloc_free(schema_res);
 571                 return WERR_FOOBAR;
 572         }
 573
 574         talloc_free(schema_res);
 575
 576         if (blob->version != PREFIX_MAP_VERSION_DSDB) {
 577                 DEBUG(0,("dsdb_read_prefixes_from_ldb: blob->version incorect\n"));
 578                 talloc_free(blob);
 579                 return WERR_FOOBAR;
 580         }
 581
 582         *num_prefixes = blob->ctr.dsdb.num_mappings;
 583         *prefixes = talloc_array(mem_ctx, struct dsdb_schema_oid_prefix, *num_prefixes);
 584         if(!(*prefixes)) {
 585                 talloc_free(blob);
 586                 return WERR_NOMEM;
 587         }
 588         for (i=0; i < blob->ctr.dsdb.num_mappings; i++) {
 589                 char *oid;
 590                 (*prefixes)[i].id = blob->ctr.dsdb.mappings[i].id_prefix<<16;
 591                 oid = talloc_strdup(mem_ctx, blob->ctr.dsdb.mappings[i].oid.oid);
 592                 (*prefixes)[i].oid = talloc_asprintf_append(oid, ".");
 593                 (*prefixes)[i].oid_len = strlen((*prefixes)[i].oid);
 594         }
 595
 596         talloc_free(blob);
 597         return WERR_OK;
 598 }
 599
 600 /*
 601   this will be replaced with something that looks at the right part of
 602   the schema once we know where unique indexing information is hidden
 603  */
 604 static bool dsdb_schema_unique_attribute(const char *attr)
 605 {
 606         const char *attrs[] = { "objectGUID", "objectSID" , NULL };
 607         int i;
 608         for (i=0;attrs[i];i++) {
 609                 if (strcasecmp(attr, attrs[i]) == 0) {
 610                         return true;
 611                 }
 612         }
 613         return false;
 614 }
 615
 616
 617 /*
 618   setup the ldb_schema_attribute field for a dsdb_attribute
 619  */
 620 static int dsdb_schema_setup_ldb_schema_attribute(struct ldb_context *ldb,
 621                                                   struct dsdb_attribute *attr)
 622 {
 623         const char *syntax = attr->syntax->ldb_syntax;
 624         const struct ldb_schema_syntax *s;
 625         struct ldb_schema_attribute *a;
 626
 627         if (!syntax) {
 628                 syntax = attr->syntax->ldap_oid;
 629         }
 630
 631         s = ldb_samba_syntax_by_lDAPDisplayName(ldb, attr->lDAPDisplayName);
 632         if (s == NULL) {
 633                 s = ldb_samba_syntax_by_name(ldb, syntax);
 634         }
 635         if (s == NULL) {
 636                 s = ldb_standard_syntax_by_name(ldb, syntax);
 637         }
 638
 639         if (s == NULL) {
 640                 return LDB_ERR_OPERATIONS_ERROR;
 641         }
 642
 643         attr->ldb_schema_attribute = a = talloc(attr, struct ldb_schema_attribute);
 644         if (attr->ldb_schema_attribute == NULL) {
 645                 ldb_oom(ldb);
 646                 return LDB_ERR_OPERATIONS_ERROR;
 647         }
 648
 649         a->name = attr->lDAPDisplayName;
 650         a->flags = 0;
 651         a->syntax = s;
 652
 653         if (dsdb_schema_unique_attribute(a->name)) {
 654                 a->flags |= LDB_ATTR_FLAG_UNIQUE_INDEX;
 655         }
 656
 657         return LDB_SUCCESS;
 658 }
 659
 660
 661 #define GET_STRING_LDB(msg, attr, mem_ctx, p, elem, strict) do { \
 662         const struct ldb_val *get_string_val = ldb_msg_find_ldb_val(msg, attr); \
 663         if (get_string_val == NULL) { \
 664                 if (strict) {                                     \
 665                         d_printf("%s: %s == NULL\n", __location__, attr); \
 666                         return WERR_INVALID_PARAM;                      \
 667                 } else {                                                \
 668                         (p)->elem = NULL;                               \
 669                 }                                                       \
 670         } else {                                                        \
 671                 (p)->elem = talloc_strndup(mem_ctx,                     \
 672                                            (const char *)get_string_val->data, \
 673                                            get_string_val->length); \
 674                 if (!(p)->elem) {                                       \
 675                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 676                         return WERR_NOMEM;                              \
 677                 }                                                       \
 678         }                                                               \
 679 } while (0)
 680
 681 #define GET_STRING_LIST_LDB(msg, attr, mem_ctx, p, elem, strict) do {   \
 682         int get_string_list_counter;                                    \
 683         struct ldb_message_element *get_string_list_el = ldb_msg_find_element(msg, attr); \
 684         if (get_string_list_el == NULL) {                               \
 685                 if (strict) {                                           \
 686                         d_printf("%s: %s == NULL\n", __location__, attr); \
 687                         return WERR_INVALID_PARAM;                      \
 688                 } else {                                                \
 689                         (p)->elem = NULL;                               \
 690                         break;                                          \
 691                 }                                                       \
 692         }                                                               \
 693         (p)->elem = talloc_array(mem_ctx, const char *, get_string_list_el->num_values + 1); \
 694         for (get_string_list_counter=0;                                 \
 695              get_string_list_counter < get_string_list_el->num_values;  \
 696              get_string_list_counter++) {                               \
 697                 (p)->elem[get_string_list_counter] = talloc_strndup((p)->elem, \
 698                                                                     (const char *)get_string_list_el->values[get_string_list_counter].data, \
 699                                                                     get_string_list_el->values[get_string_list_counter].length); \
 700                 if (!(p)->elem[get_string_list_counter]) {              \
 701                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 702                         return WERR_NOMEM;                              \
 703                 }                                                       \
 704                 (p)->elem[get_string_list_counter+1] = NULL;            \
 705         }                                                               \
 706         talloc_steal(mem_ctx, (p)->elem);                               \
 707 } while (0)
 708
 709 #define GET_BOOL_LDB(msg, attr, p, elem, strict) do { \
 710         const char *str; \
 711         str = samdb_result_string(msg, attr, NULL);\
 712         if (str == NULL) { \
 713                 if (strict) { \
 714                         d_printf("%s: %s == NULL\n", __location__, attr); \
 715                         return WERR_INVALID_PARAM; \
 716                 } else { \
 717                         (p)->elem = false; \
 718                 } \
 719         } else if (strcasecmp("TRUE", str) == 0) { \
 720                 (p)->elem = true; \
 721         } else if (strcasecmp("FALSE", str) == 0) { \
 722                 (p)->elem = false; \
 723         } else { \
 724                 d_printf("%s: %s == %s\n", __location__, attr, str); \
 725                 return WERR_INVALID_PARAM; \
 726         } \
 727 } while (0)
 728
 729 #define GET_UINT32_LDB(msg, attr, p, elem) do { \
 730         (p)->elem = samdb_result_uint(msg, attr, 0);\
 731 } while (0)
 732
 733 #define GET_UINT32_PTR_LDB(msg, attr, p, elem) do { \
 734         uint64_t _v = samdb_result_uint64(msg, attr, UINT64_MAX);\
 735         if (_v == UINT64_MAX) { \
 736                 (p)->elem = NULL; \
 737         } else if (_v > UINT32_MAX) { \
 738                 d_printf("%s: %s == 0x%llX\n", __location__, \
 739                          attr, (unsigned long long)_v); \
 740                 return WERR_INVALID_PARAM; \
 741         } else { \
 742                 (p)->elem = talloc(mem_ctx, uint32_t); \
 743                 if (!(p)->elem) { \
 744                         d_printf("%s: talloc failed for %s\n", __location__, attr); \
 745                         return WERR_NOMEM; \
 746                 } \
 747                 *(p)->elem = (uint32_t)_v; \
 748         } \
 749 } while (0)
 750
 751 #define GET_GUID_LDB(msg, attr, p, elem) do { \
 752         (p)->elem = samdb_result_guid(msg, attr);\
 753 } while (0)
 754
 755 #define GET_BLOB_LDB(msg, attr, mem_ctx, p, elem) do { \
 756         const struct ldb_val *_val;\
 757         _val = ldb_msg_find_ldb_val(msg, attr);\
 758         if (_val) {\
 759                 (p)->elem = *_val;\
 760                 talloc_steal(mem_ctx, (p)->elem.data);\
 761         } else {\
 762                 ZERO_STRUCT((p)->elem);\
 763         }\
 764 } while (0)
 765
 766 WERROR dsdb_attribute_from_ldb(struct ldb_context *ldb,
 767                                const struct dsdb_schema *schema,
 768                                struct ldb_message *msg,
 769                                TALLOC_CTX *mem_ctx,
 770                                struct dsdb_attribute *attr)
 771 {
 772         WERROR status;
 773
 774         GET_STRING_LDB(msg, "cn", mem_ctx, attr, cn, false);
 775         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
 776         GET_STRING_LDB(msg, "attributeID", mem_ctx, attr, attributeID_oid, true);
 777         if (schema->num_prefixes == 0) {
 778                 /* set an invalid value */
 779                 attr->attributeID_id = 0xFFFFFFFF;
 780         } else {
 781                 status = dsdb_map_oid2int(schema, attr->attributeID_oid, &attr->attributeID_id);
 782                 if (!W_ERROR_IS_OK(status)) {
 783                         DEBUG(0,("%s: '%s': unable to map attributeID %s: %s\n",
 784                                 __location__, attr->lDAPDisplayName, attr->attributeID_oid,
 785                                 win_errstr(status)));
 786                         return status;
 787                 }
 788         }
 789         GET_GUID_LDB(msg, "schemaIDGUID", attr, schemaIDGUID);
 790         GET_UINT32_LDB(msg, "mAPIID", attr, mAPIID);
 791
 792         GET_GUID_LDB(msg, "attributeSecurityGUID", attr, attributeSecurityGUID);
 793
 794         GET_UINT32_LDB(msg, "searchFlags", attr, searchFlags);
 795         GET_UINT32_LDB(msg, "systemFlags", attr, systemFlags);
 796         GET_BOOL_LDB(msg, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
 797         GET_UINT32_LDB(msg, "linkID", attr, linkID);
 798
 799         GET_STRING_LDB(msg, "attributeSyntax", mem_ctx, attr, attributeSyntax_oid, true);
 800         if (schema->num_prefixes == 0) {
 801                 /* set an invalid value */
 802                 attr->attributeSyntax_id = 0xFFFFFFFF;
 803         } else {
 804                 status = dsdb_map_oid2int(schema, attr->attributeSyntax_oid, &attr->attributeSyntax_id);
 805                 if (!W_ERROR_IS_OK(status)) {
 806                         DEBUG(0,("%s: '%s': unable to map attributeSyntax_ %s: %s\n",
 807                                 __location__, attr->lDAPDisplayName, attr->attributeSyntax_oid,
 808                                 win_errstr(status)));
 809                         return status;
 810                 }
 811         }
 812         GET_UINT32_LDB(msg, "oMSyntax", attr, oMSyntax);
 813         GET_BLOB_LDB(msg, "oMObjectClass", mem_ctx, attr, oMObjectClass);
 814
 815         GET_BOOL_LDB(msg, "isSingleValued", attr, isSingleValued, true);
 816         GET_UINT32_PTR_LDB(msg, "rangeLower", attr, rangeLower);
 817         GET_UINT32_PTR_LDB(msg, "rangeUpper", attr, rangeUpper);
 818         GET_BOOL_LDB(msg, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
 819
 820         GET_UINT32_LDB(msg, "schemaFlagsEx", attr, schemaFlagsEx);
 821         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
 822
 823         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
 824         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
 825         GET_STRING_LDB(msg, "adminDescription", mem_ctx, attr, adminDescription, false);
 826         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, attr, classDisplayName, false);
 827         GET_BOOL_LDB(msg, "isEphemeral", attr, isEphemeral, false);
 828         GET_BOOL_LDB(msg, "isDefunct", attr, isDefunct, false);
 829         GET_BOOL_LDB(msg, "systemOnly", attr, systemOnly, false);
 830
 831         attr->syntax = dsdb_syntax_for_attribute(attr);
 832         if (!attr->syntax) {
 833                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 834         }
 835
 836         if (dsdb_schema_setup_ldb_schema_attribute(ldb, attr) != LDB_SUCCESS) {
 837                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 838         }
 839
 840         return WERR_OK;
 841 }
 842
 843 WERROR dsdb_class_from_ldb(const struct dsdb_schema *schema,
 844                            struct ldb_message *msg,
 845                            TALLOC_CTX *mem_ctx,
 846                            struct dsdb_class *obj)
 847 {
 848         WERROR status;
 849
 850         GET_STRING_LDB(msg, "cn", mem_ctx, obj, cn, false);
 851         GET_STRING_LDB(msg, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
 852         GET_STRING_LDB(msg, "governsID", mem_ctx, obj, governsID_oid, true);
 853         if (schema->num_prefixes == 0) {
 854                 /* set an invalid value */
 855                 obj->governsID_id = 0xFFFFFFFF;
 856         } else {
 857                 status = dsdb_map_oid2int(schema, obj->governsID_oid, &obj->governsID_id);
 858                 if (!W_ERROR_IS_OK(status)) {
 859                         DEBUG(0,("%s: '%s': unable to map governsID %s: %s\n",
 860                                 __location__, obj->lDAPDisplayName, obj->governsID_oid,
 861                                 win_errstr(status)));
 862                         return status;
 863                 }
 864         }
 865         GET_GUID_LDB(msg, "schemaIDGUID", obj, schemaIDGUID);
 866
 867         GET_UINT32_LDB(msg, "objectClassCategory", obj, objectClassCategory);
 868         GET_STRING_LDB(msg, "rDNAttID", mem_ctx, obj, rDNAttID, false);
 869         GET_STRING_LDB(msg, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
 870
 871         GET_STRING_LDB(msg, "subClassOf", mem_ctx, obj, subClassOf, true);
 872
 873         GET_STRING_LIST_LDB(msg, "systemAuxiliaryClass", mem_ctx, obj, systemAuxiliaryClass, false);
 874         GET_STRING_LIST_LDB(msg, "auxiliaryClass", mem_ctx, obj, auxiliaryClass, false);
 875
 876         GET_STRING_LIST_LDB(msg, "systemMustContain", mem_ctx, obj, systemMustContain, false);
 877         GET_STRING_LIST_LDB(msg, "systemMayContain", mem_ctx, obj, systemMayContain, false);
 878         GET_STRING_LIST_LDB(msg, "mustContain", mem_ctx, obj, mustContain, false);
 879         GET_STRING_LIST_LDB(msg, "mayContain", mem_ctx, obj, mayContain, false);
 880
 881         GET_STRING_LIST_LDB(msg, "systemPossSuperiors", mem_ctx, obj, systemPossSuperiors, false);
 882         GET_STRING_LIST_LDB(msg, "possSuperiors", mem_ctx, obj, possSuperiors, false);
 883
 884         GET_STRING_LDB(msg, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
 885
 886         GET_UINT32_LDB(msg, "schemaFlagsEx", obj, schemaFlagsEx);
 887         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
 888
 889         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
 890         GET_STRING_LDB(msg, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
 891         GET_STRING_LDB(msg, "adminDescription", mem_ctx, obj, adminDescription, false);
 892         GET_STRING_LDB(msg, "classDisplayName", mem_ctx, obj, classDisplayName, false);
 893         GET_BOOL_LDB(msg, "defaultHidingValue", obj, defaultHidingValue, false);
 894         GET_BOOL_LDB(msg, "isDefunct", obj, isDefunct, false);
 895         GET_BOOL_LDB(msg, "systemOnly", obj, systemOnly, false);
 896
 897         return WERR_OK;
 898 }
 899
 900 #define dsdb_oom(error_string, mem_ctx) *error_string = talloc_asprintf(mem_ctx, "dsdb out of memory at %s:%d\n", __FILE__, __LINE__)
 901
 902 /*
 903  Create a DSDB schema from the ldb results provided.  This is called
 904  directly when the schema is provisioned from an on-disk LDIF file, or
 905  from dsdb_schema_from_schema_dn below
 906 */
 907
 908 int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 909                                  struct smb_iconv_convenience *iconv_convenience,
 910                                  struct ldb_result *schema_res,
 911                                  struct ldb_result *attrs_res, struct ldb_result *objectclass_res,
 912                                  struct dsdb_schema **schema_out,
 913                                  char **error_string)
 914 {
 915         WERROR status;
 916         uint32_t i;
 917         const struct ldb_val *prefix_val;
 918         const struct ldb_val *info_val;
 919         struct ldb_val info_val_default;
 920         struct dsdb_schema *schema;
 921
 922         schema = dsdb_new_schema(mem_ctx, iconv_convenience);
 923         if (!schema) {
 924                 dsdb_oom(error_string, mem_ctx);
 925                 return LDB_ERR_OPERATIONS_ERROR;
 926         }
 927
 928         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 929         if (!prefix_val) {
 930                 *error_string = talloc_asprintf(mem_ctx,
 931                                                 "schema_fsmo_init: no prefixMap attribute found");
 932                 return LDB_ERR_CONSTRAINT_VIOLATION;
 933         }
 934         info_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "schemaInfo");
 935         if (!info_val) {
 936                 info_val_default = strhex_to_data_blob(mem_ctx, "FF0000000000000000000000000000000000000000");
 937                 if (!info_val_default.data) {
 938                         dsdb_oom(error_string, mem_ctx);
 939                         return LDB_ERR_OPERATIONS_ERROR;
 940                 }
 941                 info_val = &info_val_default;
 942         }
 943
 944         status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
 945         if (!W_ERROR_IS_OK(status)) {
 946                 *error_string = talloc_asprintf(mem_ctx,
 947                               "schema_fsmo_init: failed to load oid mappings: %s",
 948                               win_errstr(status));
 949                 return LDB_ERR_CONSTRAINT_VIOLATION;
 950         }
 951
 952         for (i=0; i < attrs_res->count; i++) {
 953                 struct dsdb_attribute *sa;
 954
 955                 sa = talloc_zero(schema, struct dsdb_attribute);
 956                 if (!sa) {
 957                         dsdb_oom(error_string, mem_ctx);
 958                         return LDB_ERR_OPERATIONS_ERROR;
 959                 }
 960
 961                 status = dsdb_attribute_from_ldb(ldb, schema, attrs_res->msgs[i], sa, sa);
 962                 if (!W_ERROR_IS_OK(status)) {
 963                         *error_string = talloc_asprintf(mem_ctx,
 964                                       "schema_fsmo_init: failed to load attribute definition: %s:%s",
 965                                       ldb_dn_get_linearized(attrs_res->msgs[i]->dn),
 966                                       win_errstr(status));
 967                         return LDB_ERR_CONSTRAINT_VIOLATION;
 968                 }
 969
 970                 DLIST_ADD(schema->attributes, sa);
 971         }
 972
 973         for (i=0; i < objectclass_res->count; i++) {
 974                 struct dsdb_class *sc;
 975
 976                 sc = talloc_zero(schema, struct dsdb_class);
 977                 if (!sc) {
 978                         dsdb_oom(error_string, mem_ctx);
 979                         return LDB_ERR_OPERATIONS_ERROR;
 980                 }
 981
 982                 status = dsdb_class_from_ldb(schema, objectclass_res->msgs[i], sc, sc);
 983                 if (!W_ERROR_IS_OK(status)) {
 984                         *error_string = talloc_asprintf(mem_ctx,
 985                                       "schema_fsmo_init: failed to load class definition: %s:%s",
 986                                       ldb_dn_get_linearized(objectclass_res->msgs[i]->dn),
 987                                       win_errstr(status));
 988                         return LDB_ERR_CONSTRAINT_VIOLATION;
 989                 }
 990
 991                 DLIST_ADD(schema->classes, sc);
 992         }
 993
 994         schema->fsmo.master_dn = ldb_msg_find_attr_as_dn(ldb, schema, schema_res->msgs[0], "fSMORoleOwner");
 995         if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), schema->fsmo.master_dn) == 0) {
 996                 schema->fsmo.we_are_master = true;
 997         } else {
 998                 schema->fsmo.we_are_master = false;
 999         }
1000
1001         DEBUG(5, ("schema_fsmo_init: we are master: %s\n",
1002                   (schema->fsmo.we_are_master?"yes":"no")));
1003
1004         *schema_out = schema;
1005         return LDB_SUCCESS;
1006 }
1007
1008 /*
1009   Given an LDB, and the DN, return a populated schema
1010 */
1011
1012 int dsdb_schema_from_schema_dn(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
1013                                struct smb_iconv_convenience *iconv_convenience,
1014                                struct ldb_dn *schema_dn,
1015                                struct dsdb_schema **schema,
1016                                char **error_string_out)
1017 {
1018         TALLOC_CTX *tmp_ctx;
1019         char *error_string;
1020         int ret;
1021
1022         struct ldb_result *schema_res;
1023         struct ldb_result *a_res;
1024         struct ldb_result *c_res;
1025         static const char *schema_attrs[] = {
1026                 "prefixMap",
1027                 "schemaInfo",
1028                 "fSMORoleOwner",
1029                 NULL
1030         };
1031
1032         tmp_ctx = talloc_new(mem_ctx);
1033         if (!tmp_ctx) {
1034                 dsdb_oom(error_string_out, mem_ctx);
1035                 return LDB_ERR_OPERATIONS_ERROR;
1036         }
1037
1038         /*
1039          * setup the prefix mappings and schema info
1040          */
1041         ret = ldb_search(ldb, tmp_ctx, &schema_res,
1042                          schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
1043         if (ret == LDB_ERR_NO_SUCH_OBJECT) {
1044                 talloc_free(tmp_ctx);
1045                 return ret;
1046         } else if (ret != LDB_SUCCESS) {
1047                 *error_string_out = talloc_asprintf(mem_ctx,
1048                                        "dsdb_schema: failed to search the schema head: %s",
1049                                        ldb_errstring(ldb));
1050                 talloc_free(tmp_ctx);
1051                 return ret;
1052         }
1053         if (schema_res->count != 1) {
1054                 *error_string_out = talloc_asprintf(mem_ctx,
1055                               "dsdb_schema: [%u] schema heads found on a base search",
1056                               schema_res->count);
1057                 talloc_free(tmp_ctx);
1058                 return LDB_ERR_CONSTRAINT_VIOLATION;
1059         }
1060
1061         /*
1062          * load the attribute definitions
1063          */
1064         ret = ldb_search(ldb, tmp_ctx, &a_res,
1065                          schema_dn, LDB_SCOPE_ONELEVEL, NULL,
1066                          "(objectClass=attributeSchema)");
1067         if (ret != LDB_SUCCESS) {
1068                 *error_string_out = talloc_asprintf(mem_ctx,
1069                                        "dsdb_schema: failed to search attributeSchema objects: %s",
1070                                        ldb_errstring(ldb));
1071                 talloc_free(tmp_ctx);
1072                 return ret;
1073         }
1074
1075         /*
1076          * load the objectClass definitions
1077          */
1078         ret = ldb_search(ldb, tmp_ctx, &c_res,
1079                          schema_dn, LDB_SCOPE_ONELEVEL, NULL,
1080                          "(objectClass=classSchema)");
1081         if (ret != LDB_SUCCESS) {
1082                 *error_string_out = talloc_asprintf(mem_ctx,
1083                                        "dsdb_schema: failed to search attributeSchema objects: %s",
1084                                        ldb_errstring(ldb));
1085                 talloc_free(tmp_ctx);
1086                 return ret;
1087         }
1088
1089         ret = dsdb_schema_from_ldb_results(tmp_ctx, ldb,
1090                                            lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
1091                                            schema_res, a_res, c_res, schema, &error_string);
1092         if (ret != LDB_SUCCESS) {
1093                 *error_string_out = talloc_asprintf(mem_ctx,
1094                                                     "dsdb_schema load failed: %s",
1095                                                     error_string);
1096                 talloc_free(tmp_ctx);
1097                 return ret;
1098         }
1099         talloc_steal(mem_ctx, *schema);
1100         talloc_free(tmp_ctx);
1101
1102         return LDB_SUCCESS;
1103 }
1104
1105
1106 static const struct {
1107         const char *name;
1108         const char *oid;
1109 } name_mappings[] = {
1110         { "cn",                                 "2.5.4.3" },
1111         { "name",                               "1.2.840.113556.1.4.1" },
1112         { "lDAPDisplayName",                    "1.2.840.113556.1.2.460" },
1113         { "attributeID",                        "1.2.840.113556.1.2.30" },
1114         { "schemaIDGUID",                       "1.2.840.113556.1.4.148" },
1115         { "mAPIID",                             "1.2.840.113556.1.2.49" },
1116         { "attributeSecurityGUID",              "1.2.840.113556.1.4.149" },
1117         { "searchFlags",                        "1.2.840.113556.1.2.334" },
1118         { "systemFlags",                        "1.2.840.113556.1.4.375" },
1119         { "isMemberOfPartialAttributeSet",      "1.2.840.113556.1.4.639" },
1120         { "linkID",                             "1.2.840.113556.1.2.50" },
1121         { "attributeSyntax",                    "1.2.840.113556.1.2.32" },
1122         { "oMSyntax",                           "1.2.840.113556.1.2.231" },
1123         { "oMObjectClass",                      "1.2.840.113556.1.2.218" },
1124         { "isSingleValued",                     "1.2.840.113556.1.2.33" },
1125         { "rangeLower",                         "1.2.840.113556.1.2.34" },
1126         { "rangeUpper",                         "1.2.840.113556.1.2.35" },
1127         { "extendedCharsAllowed",               "1.2.840.113556.1.2.380" },
1128         { "schemaFlagsEx",                      "1.2.840.113556.1.4.120" },
1129         { "msDs-Schema-Extensions",             "1.2.840.113556.1.4.1440" },
1130         { "showInAdvancedViewOnly",             "1.2.840.113556.1.2.169" },
1131         { "adminDisplayName",                   "1.2.840.113556.1.2.194" },
1132         { "adminDescription",                   "1.2.840.113556.1.2.226" },
1133         { "classDisplayName",                   "1.2.840.113556.1.4.610" },
1134         { "isEphemeral",                        "1.2.840.113556.1.4.1212" },
1135         { "isDefunct",                          "1.2.840.113556.1.4.661" },
1136         { "systemOnly",                         "1.2.840.113556.1.4.170" },
1137         { "governsID",                          "1.2.840.113556.1.2.22" },
1138         { "objectClassCategory",                "1.2.840.113556.1.2.370" },
1139         { "rDNAttID",                           "1.2.840.113556.1.2.26" },
1140         { "defaultObjectCategory",              "1.2.840.113556.1.4.783" },
1141         { "subClassOf",                         "1.2.840.113556.1.2.21" },
1142         { "systemAuxiliaryClass",               "1.2.840.113556.1.4.198" },
1143         { "systemPossSuperiors",                "1.2.840.113556.1.4.195" },
1144         { "systemMustContain",                  "1.2.840.113556.1.4.197" },
1145         { "systemMayContain",                   "1.2.840.113556.1.4.196" },
1146         { "auxiliaryClass",                     "1.2.840.113556.1.2.351" },
1147         { "possSuperiors",                      "1.2.840.113556.1.2.8" },
1148         { "mustContain",                        "1.2.840.113556.1.2.24" },
1149         { "mayContain",                         "1.2.840.113556.1.2.25" },
1150         { "defaultSecurityDescriptor",          "1.2.840.113556.1.4.224" },
1151         { "defaultHidingValue",                 "1.2.840.113556.1.4.518" },
1152 };
1153
1154 static struct drsuapi_DsReplicaAttribute *dsdb_find_object_attr_name(struct dsdb_schema *schema,
1155                                                                      struct drsuapi_DsReplicaObject *obj,
1156                                                                      const char *name,
1157                                                                      uint32_t *idx)
1158 {
1159         WERROR status;
1160         uint32_t i, id;
1161         const char *oid = NULL;
1162
1163         for(i=0; i < ARRAY_SIZE(name_mappings); i++) {
1164                 if (strcmp(name_mappings[i].name, name) != 0) continue;
1165
1166                 oid = name_mappings[i].oid;
1167                 break;
1168         }
1169
1170         if (!oid) {
1171                 return NULL;
1172         }
1173
1174         status = dsdb_map_oid2int(schema, oid, &id);
1175         if (!W_ERROR_IS_OK(status)) {
1176                 return NULL;
1177         }
1178
1179         for (i=0; i < obj->attribute_ctr.num_attributes; i++) {
1180                 if (obj->attribute_ctr.attributes[i].attid != id) continue;
1181
1182                 if (idx) *idx = i;
1183                 return &obj->attribute_ctr.attributes[i];
1184         }
1185
1186         return NULL;
1187 }
1188
1189 #define GET_STRING_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1190         struct drsuapi_DsReplicaAttribute *_a; \
1191         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1192         if (strict && !_a) { \
1193                 d_printf("%s: %s == NULL\n", __location__, attr); \
1194                 return WERR_INVALID_PARAM; \
1195         } \
1196         if (strict && _a->value_ctr.num_values != 1) { \
1197                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1198                         _a->value_ctr.num_values); \
1199                 return WERR_INVALID_PARAM; \
1200         } \
1201         if (_a && _a->value_ctr.num_values >= 1) { \
1202                 size_t _ret; \
1203                 if (!convert_string_talloc_convenience(mem_ctx, s->iconv_convenience, CH_UTF16, CH_UNIX, \
1204                                              _a->value_ctr.values[0].blob->data, \
1205                                              _a->value_ctr.values[0].blob->length, \
1206                                              (void **)discard_const(&(p)->elem), &_ret, false)) { \
1207                         DEBUG(0,("%s: invalid data!\n", attr)); \
1208                         dump_data(0, \
1209                                      _a->value_ctr.values[0].blob->data, \
1210                                      _a->value_ctr.values[0].blob->length); \
1211                         return WERR_FOOBAR; \
1212                 } \
1213         } else { \
1214                 (p)->elem = NULL; \
1215         } \
1216 } while (0)
1217
1218 #define GET_UINT32_LIST_DS(s, r, attr, mem_ctx, p, elem) do { \
1219         int list_counter;                                       \
1220         struct drsuapi_DsReplicaAttribute *_a; \
1221         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1222         (p)->elem = _a ? talloc_array(mem_ctx, uint32_t, _a->value_ctr.num_values + 1) : NULL; \
1223         for (list_counter=0;                                    \
1224              _a && list_counter < _a->value_ctr.num_values;     \
1225              list_counter++) {                          \
1226                 if (_a->value_ctr.values[list_counter].blob->length != 4) { \
1227                         return WERR_INVALID_PARAM;                      \
1228                 }                                                       \
1229                 (p)->elem[list_counter] = IVAL(_a->value_ctr.values[list_counter].blob->data, 0); \
1230         }                                                               \
1231         if (_a) (p)->elem[list_counter] = 0;                            \
1232 } while (0)
1233
1234 #define GET_DN_DS(s, r, attr, mem_ctx, p, elem, strict) do { \
1235         struct drsuapi_DsReplicaAttribute *_a; \
1236         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1237         if (strict && !_a) { \
1238                 d_printf("%s: %s == NULL\n", __location__, attr); \
1239                 return WERR_INVALID_PARAM; \
1240         } \
1241         if (strict && _a->value_ctr.num_values != 1) { \
1242                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1243                         _a->value_ctr.num_values); \
1244                 return WERR_INVALID_PARAM; \
1245         } \
1246         if (strict && !_a->value_ctr.values[0].blob) { \
1247                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1248                 return WERR_INVALID_PARAM; \
1249         } \
1250         if (_a && _a->value_ctr.num_values >= 1 \
1251             && _a->value_ctr.values[0].blob) { \
1252                 struct drsuapi_DsReplicaObjectIdentifier3 _id3; \
1253                 enum ndr_err_code _ndr_err; \
1254                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1255                                                       mem_ctx, s->iconv_convenience, &_id3,\
1256                                                       (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);\
1257                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1258                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1259                         return ntstatus_to_werror(_nt_status); \
1260                 } \
1261                 (p)->elem = _id3.dn; \
1262         } else { \
1263                 (p)->elem = NULL; \
1264         } \
1265 } while (0)
1266
1267 #define GET_BOOL_DS(s, r, attr, p, elem, strict) do { \
1268         struct drsuapi_DsReplicaAttribute *_a; \
1269         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1270         if (strict && !_a) { \
1271                 d_printf("%s: %s == NULL\n", __location__, attr); \
1272                 return WERR_INVALID_PARAM; \
1273         } \
1274         if (strict && _a->value_ctr.num_values != 1) { \
1275                 d_printf("%s: %s num_values == %u\n", __location__, attr, \
1276                          (unsigned int)_a->value_ctr.num_values);       \
1277                 return WERR_INVALID_PARAM; \
1278         } \
1279         if (strict && !_a->value_ctr.values[0].blob) { \
1280                 d_printf("%s: %s data == NULL\n", __location__, attr); \
1281                 return WERR_INVALID_PARAM; \
1282         } \
1283         if (strict && _a->value_ctr.values[0].blob->length != 4) { \
1284                 d_printf("%s: %s length == %u\n", __location__, attr, \
1285                          (unsigned int)_a->value_ctr.values[0].blob->length); \
1286                 return WERR_INVALID_PARAM; \
1287         } \
1288         if (_a && _a->value_ctr.num_values >= 1 \
1289             && _a->value_ctr.values[0].blob \
1290             && _a->value_ctr.values[0].blob->length == 4) { \
1291                 (p)->elem = (IVAL(_a->value_ctr.values[0].blob->data,0)?true:false);\
1292         } else { \
1293                 (p)->elem = false; \
1294         } \
1295 } while (0)
1296
1297 #define GET_UINT32_DS(s, r, attr, p, elem) do { \
1298         struct drsuapi_DsReplicaAttribute *_a; \
1299         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1300         if (_a && _a->value_ctr.num_values >= 1 \
1301             && _a->value_ctr.values[0].blob \
1302             && _a->value_ctr.values[0].blob->length == 4) { \
1303                 (p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1304         } else { \
1305                 (p)->elem = 0; \
1306         } \
1307 } while (0)
1308
1309 #define GET_UINT32_PTR_DS(s, r, attr, p, elem) do { \
1310         struct drsuapi_DsReplicaAttribute *_a; \
1311         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1312         if (_a && _a->value_ctr.num_values >= 1 \
1313             && _a->value_ctr.values[0].blob \
1314             && _a->value_ctr.values[0].blob->length == 4) { \
1315                 (p)->elem = talloc(mem_ctx, uint32_t); \
1316                 if (!(p)->elem) { \
1317                         d_printf("%s: talloc failed for %s\n", __location__, attr); \
1318                         return WERR_NOMEM; \
1319                 } \
1320                 *(p)->elem = IVAL(_a->value_ctr.values[0].blob->data,0);\
1321         } else { \
1322                 (p)->elem = NULL; \
1323         } \
1324 } while (0)
1325
1326 #define GET_GUID_DS(s, r, attr, mem_ctx, p, elem) do { \
1327         struct drsuapi_DsReplicaAttribute *_a; \
1328         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1329         if (_a && _a->value_ctr.num_values >= 1 \
1330             && _a->value_ctr.values[0].blob \
1331             && _a->value_ctr.values[0].blob->length == 16) { \
1332                 enum ndr_err_code _ndr_err; \
1333                 _ndr_err = ndr_pull_struct_blob_all(_a->value_ctr.values[0].blob, \
1334                                                       mem_ctx, s->iconv_convenience, &(p)->elem, \
1335                                                       (ndr_pull_flags_fn_t)ndr_pull_GUID); \
1336                 if (!NDR_ERR_CODE_IS_SUCCESS(_ndr_err)) { \
1337                         NTSTATUS _nt_status = ndr_map_error2ntstatus(_ndr_err); \
1338                         return ntstatus_to_werror(_nt_status); \
1339                 } \
1340         } else { \
1341                 ZERO_STRUCT((p)->elem);\
1342         } \
1343 } while (0)
1344
1345 #define GET_BLOB_DS(s, r, attr, mem_ctx, p, elem) do { \
1346         struct drsuapi_DsReplicaAttribute *_a; \
1347         _a = dsdb_find_object_attr_name(s, r, attr, NULL); \
1348         if (_a && _a->value_ctr.num_values >= 1 \
1349             && _a->value_ctr.values[0].blob) { \
1350                 (p)->elem = *_a->value_ctr.values[0].blob;\
1351                 talloc_steal(mem_ctx, (p)->elem.data); \
1352         } else { \
1353                 ZERO_STRUCT((p)->elem);\
1354         }\
1355 } while (0)
1356
1357 WERROR dsdb_attribute_from_drsuapi(struct ldb_context *ldb,
1358                                    struct dsdb_schema *schema,
1359                                    struct drsuapi_DsReplicaObject *r,
1360                                    TALLOC_CTX *mem_ctx,
1361                                    struct dsdb_attribute *attr)
1362 {
1363         WERROR status;
1364
1365         GET_STRING_DS(schema, r, "name", mem_ctx, attr, cn, true);
1366         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, attr, lDAPDisplayName, true);
1367         GET_UINT32_DS(schema, r, "attributeID", attr, attributeID_id);
1368         status = dsdb_map_int2oid(schema, attr->attributeID_id, mem_ctx, &attr->attributeID_oid);
1369         if (!W_ERROR_IS_OK(status)) {
1370                 DEBUG(0,("%s: '%s': unable to map attributeID 0x%08X: %s\n",
1371                         __location__, attr->lDAPDisplayName, attr->attributeID_id,
1372                         win_errstr(status)));
1373                 return status;
1374         }
1375         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, attr, schemaIDGUID);
1376         GET_UINT32_DS(schema, r, "mAPIID", attr, mAPIID);
1377
1378         GET_GUID_DS(schema, r, "attributeSecurityGUID", mem_ctx, attr, attributeSecurityGUID);
1379
1380         GET_UINT32_DS(schema, r, "searchFlags", attr, searchFlags);
1381         GET_UINT32_DS(schema, r, "systemFlags", attr, systemFlags);
1382         GET_BOOL_DS(schema, r, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
1383         GET_UINT32_DS(schema, r, "linkID", attr, linkID);
1384
1385         GET_UINT32_DS(schema, r, "attributeSyntax", attr, attributeSyntax_id);
1386         status = dsdb_map_int2oid(schema, attr->attributeSyntax_id, mem_ctx, &attr->attributeSyntax_oid);
1387         if (!W_ERROR_IS_OK(status)) {
1388                 DEBUG(0,("%s: '%s': unable to map attributeSyntax 0x%08X: %s\n",
1389                         __location__, attr->lDAPDisplayName, attr->attributeSyntax_id,
1390                         win_errstr(status)));
1391                 return status;
1392         }
1393         GET_UINT32_DS(schema, r, "oMSyntax", attr, oMSyntax);
1394         GET_BLOB_DS(schema, r, "oMObjectClass", mem_ctx, attr, oMObjectClass);
1395
1396         GET_BOOL_DS(schema, r, "isSingleValued", attr, isSingleValued, true);
1397         GET_UINT32_PTR_DS(schema, r, "rangeLower", attr, rangeLower);
1398         GET_UINT32_PTR_DS(schema, r, "rangeUpper", attr, rangeUpper);
1399         GET_BOOL_DS(schema, r, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
1400
1401         GET_UINT32_DS(schema, r, "schemaFlagsEx", attr, schemaFlagsEx);
1402         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, attr, msDs_Schema_Extensions);
1403
1404         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
1405         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, attr, adminDisplayName, false);
1406         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, attr, adminDescription, false);
1407         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, attr, classDisplayName, false);
1408         GET_BOOL_DS(schema, r, "isEphemeral", attr, isEphemeral, false);
1409         GET_BOOL_DS(schema, r, "isDefunct", attr, isDefunct, false);
1410         GET_BOOL_DS(schema, r, "systemOnly", attr, systemOnly, false);
1411
1412         attr->syntax = dsdb_syntax_for_attribute(attr);
1413         if (!attr->syntax) {
1414                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
1415         }
1416
1417         if (dsdb_schema_setup_ldb_schema_attribute(ldb, attr) != LDB_SUCCESS) {
1418                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
1419         }
1420
1421         return WERR_OK;
1422 }
1423
1424 WERROR dsdb_class_from_drsuapi(struct dsdb_schema *schema,
1425                                struct drsuapi_DsReplicaObject *r,
1426                                TALLOC_CTX *mem_ctx,
1427                                struct dsdb_class *obj)
1428 {
1429         WERROR status;
1430
1431         GET_STRING_DS(schema, r, "name", mem_ctx, obj, cn, true);
1432         GET_STRING_DS(schema, r, "lDAPDisplayName", mem_ctx, obj, lDAPDisplayName, true);
1433         GET_UINT32_DS(schema, r, "governsID", obj, governsID_id);
1434         status = dsdb_map_int2oid(schema, obj->governsID_id, mem_ctx, &obj->governsID_oid);
1435         if (!W_ERROR_IS_OK(status)) {
1436                 DEBUG(0,("%s: '%s': unable to map governsID 0x%08X: %s\n",
1437                         __location__, obj->lDAPDisplayName, obj->governsID_id,
1438                         win_errstr(status)));
1439                 return status;
1440         }
1441         GET_GUID_DS(schema, r, "schemaIDGUID", mem_ctx, obj, schemaIDGUID);
1442
1443         GET_UINT32_DS(schema, r, "objectClassCategory", obj, objectClassCategory);
1444         GET_STRING_DS(schema, r, "rDNAttID", mem_ctx, obj, rDNAttID, false);
1445         GET_DN_DS(schema, r, "defaultObjectCategory", mem_ctx, obj, defaultObjectCategory, true);
1446
1447         GET_UINT32_DS(schema, r, "subClassOf", obj, subClassOf_id);
1448
1449         GET_UINT32_LIST_DS(schema, r, "systemAuxiliaryClass", mem_ctx, obj, systemAuxiliaryClass_ids);
1450         GET_UINT32_LIST_DS(schema, r, "auxiliaryClass", mem_ctx, obj, auxiliaryClass_ids);
1451
1452         GET_UINT32_LIST_DS(schema, r, "systemMustContain", mem_ctx, obj, systemMustContain_ids);
1453         GET_UINT32_LIST_DS(schema, r, "systemMayContain", mem_ctx, obj, systemMayContain_ids);
1454         GET_UINT32_LIST_DS(schema, r, "mustContain", mem_ctx, obj, mustContain_ids);
1455         GET_UINT32_LIST_DS(schema, r, "mayContain", mem_ctx, obj, mayContain_ids);
1456
1457         GET_UINT32_LIST_DS(schema, r, "systemPossSuperiors", mem_ctx, obj, systemPossSuperiors_ids);
1458         GET_UINT32_LIST_DS(schema, r, "possSuperiors", mem_ctx, obj, possSuperiors_ids);
1459
1460         GET_STRING_DS(schema, r, "defaultSecurityDescriptor", mem_ctx, obj, defaultSecurityDescriptor, false);
1461
1462         GET_UINT32_DS(schema, r, "schemaFlagsEx", obj, schemaFlagsEx);
1463         GET_BLOB_DS(schema, r, "msDs-Schema-Extensions", mem_ctx, obj, msDs_Schema_Extensions);
1464
1465         GET_BOOL_DS(schema, r, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
1466         GET_STRING_DS(schema, r, "adminDisplayName", mem_ctx, obj, adminDisplayName, false);
1467         GET_STRING_DS(schema, r, "adminDescription", mem_ctx, obj, adminDescription, false);
1468         GET_STRING_DS(schema, r, "classDisplayName", mem_ctx, obj, classDisplayName, false);
1469         GET_BOOL_DS(schema, r, "defaultHidingValue", obj, defaultHidingValue, false);
1470         GET_BOOL_DS(schema, r, "isDefunct", obj, isDefunct, false);
1471         GET_BOOL_DS(schema, r, "systemOnly", obj, systemOnly, false);
1472
1473         return WERR_OK;
1474 }
1475