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 "dsdb/common/util.h"
  26 #include "lib/ldb/include/ldb_errors.h"
  27 #include "../lib/util/dlinklist.h"
  28 #include "librpc/gen_ndr/ndr_misc.h"
  29 #include "librpc/gen_ndr/ndr_drsuapi.h"
  30 #include "librpc/gen_ndr/ndr_drsblobs.h"
  31 #include "param/param.h"
  32 #include "lib/ldb/include/ldb_module.h"
  33 #include "../lib/util/asn1.h"
  34
  35
  36 struct dsdb_schema *dsdb_new_schema(TALLOC_CTX *mem_ctx)
  37 {
  38         struct dsdb_schema *schema = talloc_zero(mem_ctx, struct dsdb_schema);
  39         if (!schema) {
  40                 return NULL;
  41         }
  42
  43         return schema;
  44 }
  45
  46 struct dsdb_schema *dsdb_schema_copy_shallow(TALLOC_CTX *mem_ctx,
  47                                              struct ldb_context *ldb,
  48                                              const struct dsdb_schema *schema)
  49 {
  50         int ret;
  51         struct dsdb_class *cls;
  52         struct dsdb_attribute *attr;
  53         struct dsdb_schema *schema_copy;
  54
  55         schema_copy = dsdb_new_schema(mem_ctx);
  56         if (!schema_copy) {
  57                 return NULL;
  58         }
  59
  60         /* copy prexiMap & schemaInfo */
  61         schema_copy->prefixmap = dsdb_schema_pfm_copy_shallow(schema_copy,
  62                                                               schema->prefixmap);
  63         if (!schema_copy->prefixmap) {
  64                 return NULL;
  65         }
  66
  67         schema_copy->schema_info = talloc_strdup(schema_copy, schema->schema_info);
  68
  69         /* copy classes and attributes*/
  70         for (cls = schema->classes; cls; cls = cls->next) {
  71                 struct dsdb_class *class_copy = talloc_memdup(schema_copy,
  72                                                               cls, sizeof(*cls));
  73                 if (!class_copy) {
  74                         goto failed;
  75                 }
  76                 DLIST_ADD(schema_copy->classes, class_copy);
  77         }
  78         schema_copy->num_classes = schema->num_classes;
  79
  80         for (attr = schema->attributes; attr; attr = attr->next) {
  81                 struct dsdb_attribute *a_copy = talloc_memdup(schema_copy,
  82                                                               attr, sizeof(*attr));
  83                 if (!a_copy) {
  84                         goto failed;
  85                 }
  86                 DLIST_ADD(schema_copy->attributes, a_copy);
  87         }
  88         schema_copy->num_attributes = schema->num_attributes;
  89
  90         /* rebuild indexes */
  91         ret = dsdb_setup_sorted_accessors(ldb, schema_copy);
  92         if (ret != LDB_SUCCESS) {
  93                 goto failed;
  94         }
  95
  96         return schema_copy;
  97
  98 failed:
  99         talloc_free(schema_copy);
 100         return NULL;
 101 }
 102
 103
 104 WERROR dsdb_load_prefixmap_from_drsuapi(struct dsdb_schema *schema,
 105                                         const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr)
 106 {
 107         WERROR werr;
 108         const char *schema_info;
 109         struct dsdb_schema_prefixmap *pfm;
 110
 111         werr = dsdb_schema_pfm_from_drsuapi_pfm(ctr, true, schema, &pfm, &schema_info);
 112         W_ERROR_NOT_OK_RETURN(werr);
 113
 114         /* set loaded prefixMap */
 115         talloc_free(schema->prefixmap);
 116         schema->prefixmap = pfm;
 117
 118         talloc_free(discard_const(schema->schema_info));
 119         schema->schema_info = schema_info;
 120
 121         return WERR_OK;
 122 }
 123
 124 static WERROR _dsdb_prefixmap_from_ldb_val(const struct ldb_val *pfm_ldb_val,
 125                                            TALLOC_CTX *mem_ctx,
 126                                            struct dsdb_schema_prefixmap **_pfm)
 127 {
 128         WERROR werr;
 129         enum ndr_err_code ndr_err;
 130         struct prefixMapBlob pfm_blob;
 131
 132         TALLOC_CTX *temp_ctx = talloc_new(mem_ctx);
 133         W_ERROR_HAVE_NO_MEMORY(temp_ctx);
 134
 135         ndr_err = ndr_pull_struct_blob(pfm_ldb_val, temp_ctx,
 136                                 &pfm_blob,
 137                                 (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 138         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 139                 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
 140                 DEBUG(0,("_dsdb_prefixmap_from_ldb_val: Failed to parse prefixmap of length %u: %s\n",
 141                          (unsigned int)pfm_ldb_val->length, ndr_map_error2string(ndr_err)));
 142                 talloc_free(temp_ctx);
 143                 return ntstatus_to_werror(nt_status);
 144         }
 145
 146         if (pfm_blob.version != PREFIX_MAP_VERSION_DSDB) {
 147                 DEBUG(0,("_dsdb_prefixmap_from_ldb_val: pfm_blob->version %u incorrect\n", (unsigned int)pfm_blob.version));
 148                 talloc_free(temp_ctx);
 149                 return WERR_VERSION_PARSE_ERROR;
 150         }
 151
 152         /* call the drsuapi version */
 153         werr = dsdb_schema_pfm_from_drsuapi_pfm(&pfm_blob.ctr.dsdb, false, mem_ctx, _pfm, NULL);
 154         if (!W_ERROR_IS_OK(werr)) {
 155                 DEBUG(0, (__location__ " dsdb_schema_pfm_from_drsuapi_pfm failed: %s\n", win_errstr(werr)));
 156                 talloc_free(temp_ctx);
 157                 return werr;
 158         }
 159
 160         talloc_free(temp_ctx);
 161
 162         return werr;
 163 }
 164
 165 WERROR dsdb_load_oid_mappings_ldb(struct dsdb_schema *schema,
 166                                   const struct ldb_val *prefixMap,
 167                                   const struct ldb_val *schemaInfo)
 168 {
 169         WERROR werr;
 170         const char *schema_info;
 171         struct dsdb_schema_prefixmap *pfm;
 172         TALLOC_CTX *mem_ctx;
 173
 174         /* verify schemaInfo blob is valid one */
 175         if (!dsdb_schema_info_blob_is_valid(schemaInfo)) {
 176                 DEBUG(0,(__location__": dsdb_schema_info_blob_is_valid() failed.\n"));
 177                 return WERR_INVALID_PARAMETER;
 178         }
 179
 180         mem_ctx = talloc_new(schema);
 181         W_ERROR_HAVE_NO_MEMORY(mem_ctx);
 182
 183         /* fetch prefixMap */
 184         werr = _dsdb_prefixmap_from_ldb_val(prefixMap,
 185                                             mem_ctx, &pfm);
 186         if (!W_ERROR_IS_OK(werr)) {
 187                 DEBUG(0, (__location__ " _dsdb_prefixmap_from_ldb_val failed: %s\n", win_errstr(werr)));
 188                 talloc_free(mem_ctx);
 189                 return werr;
 190         }
 191
 192         /* decode schema_info */
 193         schema_info = hex_encode_talloc(mem_ctx,
 194                                         schemaInfo->data,
 195                                         schemaInfo->length);
 196         if (!schema_info) {
 197                 talloc_free(mem_ctx);
 198                 return WERR_NOMEM;
 199         }
 200
 201         /* store prefixMap and schema_info into cached Schema */
 202         talloc_free(schema->prefixmap);
 203         schema->prefixmap = talloc_steal(schema, pfm);
 204
 205         talloc_free(discard_const(schema->schema_info));
 206         schema->schema_info = talloc_steal(schema, schema_info);
 207
 208         /* clean up locally allocated mem */
 209         talloc_free(mem_ctx);
 210
 211         return WERR_OK;
 212 }
 213
 214 WERROR dsdb_get_oid_mappings_drsuapi(const struct dsdb_schema *schema,
 215                                      bool include_schema_info,
 216                                      TALLOC_CTX *mem_ctx,
 217                                      struct drsuapi_DsReplicaOIDMapping_Ctr **_ctr)
 218 {
 219         return dsdb_drsuapi_pfm_from_schema_pfm(schema->prefixmap,
 220                                                 include_schema_info ? schema->schema_info : NULL,
 221                                                 mem_ctx, _ctr);
 222 }
 223
 224 WERROR dsdb_get_drsuapi_prefixmap_as_blob(const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr,
 225                                           TALLOC_CTX *mem_ctx,
 226                                           struct ldb_val *prefixMap)
 227 {
 228         struct prefixMapBlob pfm;
 229         enum ndr_err_code ndr_err;
 230         pfm.version     = PREFIX_MAP_VERSION_DSDB;
 231         pfm.reserved    = 0;
 232         pfm.ctr.dsdb    = *ctr;
 233
 234         ndr_err = ndr_push_struct_blob(prefixMap, mem_ctx, &pfm,
 235                                         (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 236         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 237                 NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
 238                 return ntstatus_to_werror(nt_status);
 239         }
 240         return WERR_OK;
 241 }
 242
 243 WERROR dsdb_get_oid_mappings_ldb(const struct dsdb_schema *schema,
 244                                  TALLOC_CTX *mem_ctx,
 245                                  struct ldb_val *prefixMap,
 246                                  struct ldb_val *schemaInfo)
 247 {
 248         WERROR status;
 249         struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
 250
 251         status = dsdb_get_oid_mappings_drsuapi(schema, false, mem_ctx, &ctr);
 252         W_ERROR_NOT_OK_RETURN(status);
 253
 254         status = dsdb_get_drsuapi_prefixmap_as_blob(ctr, mem_ctx, prefixMap);
 255         talloc_free(ctr);
 256         W_ERROR_NOT_OK_RETURN(status);
 257
 258         *schemaInfo = strhex_to_data_blob(mem_ctx, schema->schema_info);
 259         W_ERROR_HAVE_NO_MEMORY(schemaInfo->data);
 260
 261         return WERR_OK;
 262 }
 263
 264
 265 /*
 266  * this function is called from within a ldb transaction from the schema_fsmo module
 267  */
 268 WERROR dsdb_create_prefix_mapping(struct ldb_context *ldb, struct dsdb_schema *schema, const char *full_oid)
 269 {
 270         WERROR status;
 271         uint32_t attid;
 272         TALLOC_CTX *mem_ctx;
 273         struct dsdb_schema_prefixmap *pfm;
 274
 275         mem_ctx = talloc_new(ldb);
 276         W_ERROR_HAVE_NO_MEMORY(mem_ctx);
 277
 278         /* Read prefixes from disk*/
 279         status = dsdb_read_prefixes_from_ldb(ldb, mem_ctx, &pfm);
 280         if (!W_ERROR_IS_OK(status)) {
 281                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_read_prefixes_from_ldb: %s\n",
 282                         win_errstr(status)));
 283                 talloc_free(mem_ctx);
 284                 return status;
 285         }
 286
 287         /* Check if there is a prefix for the oid in the prefixes array*/
 288         status = dsdb_schema_pfm_find_oid(pfm, full_oid, NULL);
 289         if (W_ERROR_IS_OK(status)) {
 290                 /* prefix found*/
 291                 talloc_free(mem_ctx);
 292                 return status;
 293         } else if (!W_ERROR_EQUAL(status, WERR_NOT_FOUND)) {
 294                 /* error */
 295                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_find_prefix_for_oid: %s\n",
 296                         win_errstr(status)));
 297                 talloc_free(mem_ctx);
 298                 return status;
 299         }
 300
 301         /* Create the new mapping for the prefix of full_oid */
 302         status = dsdb_schema_pfm_make_attid(pfm, full_oid, &attid);
 303         if (!W_ERROR_IS_OK(status)) {
 304                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_schema_pfm_make_attid: %s\n",
 305                         win_errstr(status)));
 306                 talloc_free(mem_ctx);
 307                 return status;
 308         }
 309
 310         talloc_unlink(schema, schema->prefixmap);
 311         schema->prefixmap = talloc_steal(schema, pfm);
 312
 313         /* Update prefixMap in ldb*/
 314         status = dsdb_write_prefixes_from_schema_to_ldb(mem_ctx, ldb, schema);
 315         if (!W_ERROR_IS_OK(status)) {
 316                 DEBUG(0,("dsdb_create_prefix_mapping: dsdb_write_prefixes_to_ldb: %s\n",
 317                         win_errstr(status)));
 318                 talloc_free(mem_ctx);
 319                 return status;
 320         }
 321
 322         DEBUG(2,(__location__ " Added prefixMap %s - now have %u prefixes\n",
 323                  full_oid, schema->prefixmap->length));
 324
 325         talloc_free(mem_ctx);
 326         return status;
 327 }
 328
 329
 330 WERROR dsdb_write_prefixes_from_schema_to_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 331                                               const struct dsdb_schema *schema)
 332 {
 333         WERROR status;
 334         int ldb_ret;
 335         struct ldb_message *msg;
 336         struct ldb_dn *schema_dn;
 337         struct prefixMapBlob pfm_blob;
 338         struct ldb_val ndr_blob;
 339         enum ndr_err_code ndr_err;
 340         TALLOC_CTX *temp_ctx;
 341         struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
 342
 343         schema_dn = ldb_get_schema_basedn(ldb);
 344         if (!schema_dn) {
 345                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: no schema dn present\n"));
 346                 return WERR_FOOBAR;
 347         }
 348
 349         temp_ctx = talloc_new(mem_ctx);
 350         W_ERROR_HAVE_NO_MEMORY(temp_ctx);
 351
 352         /* convert schema_prefixMap to prefixMap blob */
 353         status = dsdb_get_oid_mappings_drsuapi(schema, false, temp_ctx, &ctr);
 354         if (!W_ERROR_IS_OK(status)) {
 355                 talloc_free(temp_ctx);
 356                 return status;
 357         }
 358
 359         pfm_blob.version        = PREFIX_MAP_VERSION_DSDB;
 360         pfm_blob.ctr.dsdb       = *ctr;
 361
 362         ndr_err = ndr_push_struct_blob(&ndr_blob, temp_ctx,
 363                                        &pfm_blob,
 364                                        (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 365         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 366                 talloc_free(temp_ctx);
 367                 return WERR_FOOBAR;
 368         }
 369
 370         /* write serialized prefixMap into LDB */
 371         msg = ldb_msg_new(temp_ctx);
 372         if (!msg) {
 373                 talloc_free(temp_ctx);
 374                 return WERR_NOMEM;
 375         }
 376
 377         msg->dn = schema_dn;
 378         ldb_ret = ldb_msg_add_value(msg, "prefixMap", &ndr_blob, NULL);
 379         if (ldb_ret != 0) {
 380                 talloc_free(temp_ctx);
 381                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: ldb_msg_add_value failed\n"));
 382                 return WERR_NOMEM;
 383         }
 384
 385         ldb_ret = dsdb_replace(ldb, msg, DSDB_FLAG_AS_SYSTEM);
 386
 387         talloc_free(temp_ctx);
 388
 389         if (ldb_ret != 0) {
 390                 DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: dsdb_replace failed\n"));
 391                 return WERR_FOOBAR;
 392         }
 393
 394         return WERR_OK;
 395 }
 396
 397 WERROR dsdb_read_prefixes_from_ldb(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, struct dsdb_schema_prefixmap **_pfm)
 398 {
 399         WERROR werr;
 400         int ldb_ret;
 401         const struct ldb_val *prefix_val;
 402         struct ldb_dn *schema_dn;
 403         struct ldb_result *schema_res = NULL;
 404         static const char *schema_attrs[] = {
 405                 "prefixMap",
 406                 NULL
 407         };
 408
 409         schema_dn = ldb_get_schema_basedn(ldb);
 410         if (!schema_dn) {
 411                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no schema dn present\n"));
 412                 return WERR_FOOBAR;
 413         }
 414
 415         ldb_ret = ldb_search(ldb, mem_ctx, &schema_res, schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
 416         if (ldb_ret == LDB_ERR_NO_SUCH_OBJECT) {
 417                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefix map present\n"));
 418                 talloc_free(schema_res);
 419                 return WERR_FOOBAR;
 420         } else if (ldb_ret != LDB_SUCCESS) {
 421                 DEBUG(0,("dsdb_read_prefixes_from_ldb: failed to search the schema head\n"));
 422                 talloc_free(schema_res);
 423                 return WERR_FOOBAR;
 424         }
 425
 426         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 427         if (!prefix_val) {
 428                 DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefixMap attribute found\n"));
 429                 talloc_free(schema_res);
 430                 return WERR_FOOBAR;
 431         }
 432
 433         werr = _dsdb_prefixmap_from_ldb_val(prefix_val,
 434                                             mem_ctx,
 435                                             _pfm);
 436         talloc_free(schema_res);
 437         W_ERROR_NOT_OK_RETURN(werr);
 438
 439         return WERR_OK;
 440 }
 441
 442 /*
 443   this will be replaced with something that looks at the right part of
 444   the schema once we know where unique indexing information is hidden
 445  */
 446 static bool dsdb_schema_unique_attribute(const char *attr)
 447 {
 448         const char *attrs[] = { "objectGUID", "objectSid" , NULL };
 449         unsigned int i;
 450         for (i=0;attrs[i];i++) {
 451                 if (strcasecmp(attr, attrs[i]) == 0) {
 452                         return true;
 453                 }
 454         }
 455         return false;
 456 }
 457
 458
 459 /*
 460   setup the ldb_schema_attribute field for a dsdb_attribute
 461  */
 462 static int dsdb_schema_setup_ldb_schema_attribute(struct ldb_context *ldb,
 463                                                   struct dsdb_attribute *attr)
 464 {
 465         const char *syntax = attr->syntax->ldb_syntax;
 466         const struct ldb_schema_syntax *s;
 467         struct ldb_schema_attribute *a;
 468
 469         if (!syntax) {
 470                 syntax = attr->syntax->ldap_oid;
 471         }
 472
 473         s = ldb_samba_syntax_by_lDAPDisplayName(ldb, attr->lDAPDisplayName);
 474         if (s == NULL) {
 475                 s = ldb_samba_syntax_by_name(ldb, syntax);
 476         }
 477         if (s == NULL) {
 478                 s = ldb_standard_syntax_by_name(ldb, syntax);
 479         }
 480
 481         if (s == NULL) {
 482                 return ldb_operr(ldb);
 483         }
 484
 485         attr->ldb_schema_attribute = a = talloc(attr, struct ldb_schema_attribute);
 486         if (attr->ldb_schema_attribute == NULL) {
 487                 return ldb_oom(ldb);
 488         }
 489
 490         a->name = attr->lDAPDisplayName;
 491         a->flags = 0;
 492         a->syntax = s;
 493
 494         if (dsdb_schema_unique_attribute(a->name)) {
 495                 a->flags |= LDB_ATTR_FLAG_UNIQUE_INDEX;
 496         }
 497         if (attr->isSingleValued) {
 498                 a->flags |= LDB_ATTR_FLAG_SINGLE_VALUE;
 499         }
 500
 501
 502         return LDB_SUCCESS;
 503 }
 504
 505
 506 #define GET_STRING_LDB(msg, attr, mem_ctx, p, elem, strict) do { \
 507         const struct ldb_val *get_string_val = ldb_msg_find_ldb_val(msg, attr); \
 508         if (get_string_val == NULL) { \
 509                 if (strict) {                                     \
 510                         d_printf("%s: %s == NULL in %s\n", __location__, attr, ldb_dn_get_linearized(msg->dn)); \
 511                         return WERR_INVALID_PARAM;                      \
 512                 } else {                                                \
 513                         (p)->elem = NULL;                               \
 514                 }                                                       \
 515         } else {                                                        \
 516                 (p)->elem = talloc_strndup(mem_ctx,                     \
 517                                            (const char *)get_string_val->data, \
 518                                            get_string_val->length); \
 519                 if (!(p)->elem) {                                       \
 520                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 521                         return WERR_NOMEM;                              \
 522                 }                                                       \
 523         }                                                               \
 524 } while (0)
 525
 526 #define GET_STRING_LIST_LDB(msg, attr, mem_ctx, p, elem) do {   \
 527         int get_string_list_counter;                                    \
 528         struct ldb_message_element *get_string_list_el = ldb_msg_find_element(msg, attr); \
 529         /* We may get empty attributes over the replication channel */  \
 530         if (get_string_list_el == NULL || get_string_list_el->num_values == 0) {                                \
 531                 (p)->elem = NULL;                                       \
 532                 break;                                                  \
 533         }                                                               \
 534         (p)->elem = talloc_array(mem_ctx, const char *, get_string_list_el->num_values + 1); \
 535         for (get_string_list_counter=0;                                 \
 536              get_string_list_counter < get_string_list_el->num_values;  \
 537              get_string_list_counter++) {                               \
 538                 (p)->elem[get_string_list_counter] = talloc_strndup((p)->elem, \
 539                                                                     (const char *)get_string_list_el->values[get_string_list_counter].data, \
 540                                                                     get_string_list_el->values[get_string_list_counter].length); \
 541                 if (!(p)->elem[get_string_list_counter]) {              \
 542                         d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \
 543                         return WERR_NOMEM;                              \
 544                 }                                                       \
 545                 (p)->elem[get_string_list_counter+1] = NULL;            \
 546         }                                                               \
 547         talloc_steal(mem_ctx, (p)->elem);                               \
 548 } while (0)
 549
 550 #define GET_BOOL_LDB(msg, attr, p, elem, strict) do { \
 551         const char *str; \
 552         str = ldb_msg_find_attr_as_string(msg, attr, NULL);\
 553         if (str == NULL) { \
 554                 if (strict) { \
 555                         d_printf("%s: %s == NULL\n", __location__, attr); \
 556                         return WERR_INVALID_PARAM; \
 557                 } else { \
 558                         (p)->elem = false; \
 559                 } \
 560         } else if (strcasecmp("TRUE", str) == 0) { \
 561                 (p)->elem = true; \
 562         } else if (strcasecmp("FALSE", str) == 0) { \
 563                 (p)->elem = false; \
 564         } else { \
 565                 d_printf("%s: %s == %s\n", __location__, attr, str); \
 566                 return WERR_INVALID_PARAM; \
 567         } \
 568 } while (0)
 569
 570 #define GET_UINT32_LDB(msg, attr, p, elem) do { \
 571         (p)->elem = ldb_msg_find_attr_as_uint(msg, attr, 0);\
 572 } while (0)
 573
 574 #define GET_UINT32_PTR_LDB(msg, attr, mem_ctx, p, elem) do {            \
 575         uint64_t _v = ldb_msg_find_attr_as_uint64(msg, attr, UINT64_MAX);\
 576         if (_v == UINT64_MAX) { \
 577                 (p)->elem = NULL; \
 578         } else if (_v > UINT32_MAX) { \
 579                 d_printf("%s: %s == 0x%llX\n", __location__, \
 580                          attr, (unsigned long long)_v); \
 581                 return WERR_INVALID_PARAM; \
 582         } else { \
 583                 (p)->elem = talloc(mem_ctx, uint32_t); \
 584                 if (!(p)->elem) { \
 585                         d_printf("%s: talloc failed for %s\n", __location__, attr); \
 586                         return WERR_NOMEM; \
 587                 } \
 588                 *(p)->elem = (uint32_t)_v; \
 589         } \
 590 } while (0)
 591
 592 #define GET_GUID_LDB(msg, attr, p, elem) do { \
 593         (p)->elem = samdb_result_guid(msg, attr);\
 594 } while (0)
 595
 596 #define GET_BLOB_LDB(msg, attr, mem_ctx, p, elem) do { \
 597         const struct ldb_val *_val;\
 598         _val = ldb_msg_find_ldb_val(msg, attr);\
 599         if (_val) {\
 600                 (p)->elem = *_val;\
 601                 talloc_steal(mem_ctx, (p)->elem.data);\
 602         } else {\
 603                 ZERO_STRUCT((p)->elem);\
 604         }\
 605 } while (0)
 606
 607 WERROR dsdb_attribute_from_ldb(struct ldb_context *ldb,
 608                                struct dsdb_schema *schema,
 609                                struct ldb_message *msg)
 610 {
 611         WERROR status;
 612         struct dsdb_attribute *attr = talloc_zero(schema, struct dsdb_attribute);
 613         if (!attr) {
 614                 return WERR_NOMEM;
 615         }
 616
 617         GET_STRING_LDB(msg, "cn", attr, attr, cn, false);
 618         GET_STRING_LDB(msg, "lDAPDisplayName", attr, attr, lDAPDisplayName, true);
 619         GET_STRING_LDB(msg, "attributeID", attr, attr, attributeID_oid, true);
 620         if (!schema->prefixmap || schema->prefixmap->length == 0) {
 621                 /* set an invalid value */
 622                 attr->attributeID_id = DRSUAPI_ATTID_INVALID;
 623         } else {
 624                 status = dsdb_schema_pfm_make_attid(schema->prefixmap,
 625                                                     attr->attributeID_oid,
 626                                                     &attr->attributeID_id);
 627                 if (!W_ERROR_IS_OK(status)) {
 628                         DEBUG(0,("%s: '%s': unable to map attributeID %s: %s\n",
 629                                 __location__, attr->lDAPDisplayName, attr->attributeID_oid,
 630                                 win_errstr(status)));
 631                         return status;
 632                 }
 633         }
 634         /* fetch msDS-IntId to be used in resolving ATTRTYP values */
 635         GET_UINT32_LDB(msg, "msDS-IntId", attr, msDS_IntId);
 636
 637         GET_GUID_LDB(msg, "schemaIDGUID", attr, schemaIDGUID);
 638         GET_UINT32_LDB(msg, "mAPIID", attr, mAPIID);
 639
 640         GET_GUID_LDB(msg, "attributeSecurityGUID", attr, attributeSecurityGUID);
 641
 642         GET_GUID_LDB(msg, "objectGUID", attr, objectGUID);
 643
 644         GET_UINT32_LDB(msg, "searchFlags", attr, searchFlags);
 645         GET_UINT32_LDB(msg, "systemFlags", attr, systemFlags);
 646         GET_BOOL_LDB(msg, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false);
 647         GET_UINT32_LDB(msg, "linkID", attr, linkID);
 648
 649         GET_STRING_LDB(msg, "attributeSyntax", attr, attr, attributeSyntax_oid, true);
 650         if (!schema->prefixmap || schema->prefixmap->length == 0) {
 651                 /* set an invalid value */
 652                 attr->attributeSyntax_id = DRSUAPI_ATTID_INVALID;
 653         } else {
 654                 status = dsdb_schema_pfm_attid_from_oid(schema->prefixmap,
 655                                                         attr->attributeSyntax_oid,
 656                                                         &attr->attributeSyntax_id);
 657                 if (!W_ERROR_IS_OK(status)) {
 658                         DEBUG(0,("%s: '%s': unable to map attributeSyntax_ %s: %s\n",
 659                                 __location__, attr->lDAPDisplayName, attr->attributeSyntax_oid,
 660                                 win_errstr(status)));
 661                         return status;
 662                 }
 663         }
 664         GET_UINT32_LDB(msg, "oMSyntax", attr, oMSyntax);
 665         GET_BLOB_LDB(msg, "oMObjectClass", attr, attr, oMObjectClass);
 666
 667         GET_BOOL_LDB(msg, "isSingleValued", attr, isSingleValued, true);
 668         GET_UINT32_PTR_LDB(msg, "rangeLower", attr, attr, rangeLower);
 669         GET_UINT32_PTR_LDB(msg, "rangeUpper", attr, attr, rangeUpper);
 670         GET_BOOL_LDB(msg, "extendedCharsAllowed", attr, extendedCharsAllowed, false);
 671
 672         GET_UINT32_LDB(msg, "schemaFlagsEx", attr, schemaFlagsEx);
 673         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", attr, attr, msDs_Schema_Extensions);
 674
 675         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false);
 676         GET_STRING_LDB(msg, "adminDisplayName", attr, attr, adminDisplayName, false);
 677         GET_STRING_LDB(msg, "adminDescription", attr, attr, adminDescription, false);
 678         GET_STRING_LDB(msg, "classDisplayName", attr, attr, classDisplayName, false);
 679         GET_BOOL_LDB(msg, "isEphemeral", attr, isEphemeral, false);
 680         GET_BOOL_LDB(msg, "isDefunct", attr, isDefunct, false);
 681         GET_BOOL_LDB(msg, "systemOnly", attr, systemOnly, false);
 682
 683         attr->syntax = dsdb_syntax_for_attribute(attr);
 684         if (!attr->syntax) {
 685                 DEBUG(0,(__location__ ": Unknown schema syntax for %s\n",
 686                          attr->lDAPDisplayName));
 687                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 688         }
 689
 690         if (dsdb_schema_setup_ldb_schema_attribute(ldb, attr) != LDB_SUCCESS) {
 691                 DEBUG(0,(__location__ ": Unknown schema syntax for %s - ldb_syntax: %s, ldap_oid: %s\n",
 692                          attr->lDAPDisplayName,
 693                          attr->syntax->ldb_syntax,
 694                          attr->syntax->ldap_oid));
 695                 return WERR_DS_ATT_SCHEMA_REQ_SYNTAX;
 696         }
 697
 698         DLIST_ADD(schema->attributes, attr);
 699         return WERR_OK;
 700 }
 701
 702 WERROR dsdb_class_from_ldb(struct dsdb_schema *schema,
 703                            struct ldb_message *msg)
 704 {
 705         WERROR status;
 706         struct dsdb_class *obj = talloc_zero(schema, struct dsdb_class);
 707         if (!obj) {
 708                 return WERR_NOMEM;
 709         }
 710         GET_STRING_LDB(msg, "cn", obj, obj, cn, false);
 711         GET_STRING_LDB(msg, "lDAPDisplayName", obj, obj, lDAPDisplayName, true);
 712         GET_STRING_LDB(msg, "governsID", obj, obj, governsID_oid, true);
 713         if (!schema->prefixmap || schema->prefixmap->length == 0) {
 714                 /* set an invalid value */
 715                 obj->governsID_id = DRSUAPI_ATTID_INVALID;
 716         } else {
 717                 status = dsdb_schema_pfm_make_attid(schema->prefixmap,
 718                                                     obj->governsID_oid,
 719                                                     &obj->governsID_id);
 720                 if (!W_ERROR_IS_OK(status)) {
 721                         DEBUG(0,("%s: '%s': unable to map governsID %s: %s\n",
 722                                 __location__, obj->lDAPDisplayName, obj->governsID_oid,
 723                                 win_errstr(status)));
 724                         return status;
 725                 }
 726         }
 727         GET_GUID_LDB(msg, "schemaIDGUID", obj, schemaIDGUID);
 728         GET_GUID_LDB(msg, "objectGUID", obj, objectGUID);
 729
 730         GET_UINT32_LDB(msg, "objectClassCategory", obj, objectClassCategory);
 731         GET_STRING_LDB(msg, "rDNAttID", obj, obj, rDNAttID, false);
 732         GET_STRING_LDB(msg, "defaultObjectCategory", obj, obj, defaultObjectCategory, true);
 733
 734         GET_STRING_LDB(msg, "subClassOf", obj, obj, subClassOf, true);
 735
 736         GET_STRING_LIST_LDB(msg, "systemAuxiliaryClass", obj, obj, systemAuxiliaryClass);
 737         GET_STRING_LIST_LDB(msg, "auxiliaryClass", obj, obj, auxiliaryClass);
 738
 739         GET_STRING_LIST_LDB(msg, "systemMustContain", obj, obj, systemMustContain);
 740         GET_STRING_LIST_LDB(msg, "systemMayContain", obj, obj, systemMayContain);
 741         GET_STRING_LIST_LDB(msg, "mustContain", obj, obj, mustContain);
 742         GET_STRING_LIST_LDB(msg, "mayContain", obj, obj, mayContain);
 743
 744         GET_STRING_LIST_LDB(msg, "systemPossSuperiors", obj, obj, systemPossSuperiors);
 745         GET_STRING_LIST_LDB(msg, "possSuperiors", obj, obj, possSuperiors);
 746
 747         GET_STRING_LDB(msg, "defaultSecurityDescriptor", obj, obj, defaultSecurityDescriptor, false);
 748
 749         GET_UINT32_LDB(msg, "schemaFlagsEx", obj, schemaFlagsEx);
 750         GET_BLOB_LDB(msg, "msDs-Schema-Extensions", obj, obj, msDs_Schema_Extensions);
 751
 752         GET_BOOL_LDB(msg, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false);
 753         GET_STRING_LDB(msg, "adminDisplayName", obj, obj, adminDisplayName, false);
 754         GET_STRING_LDB(msg, "adminDescription", obj, obj, adminDescription, false);
 755         GET_STRING_LDB(msg, "classDisplayName", obj, obj, classDisplayName, false);
 756         GET_BOOL_LDB(msg, "defaultHidingValue", obj, defaultHidingValue, false);
 757         GET_BOOL_LDB(msg, "isDefunct", obj, isDefunct, false);
 758         GET_BOOL_LDB(msg, "systemOnly", obj, systemOnly, false);
 759
 760         DLIST_ADD(schema->classes, obj);
 761         return WERR_OK;
 762 }
 763
 764 #define dsdb_oom(error_string, mem_ctx) *error_string = talloc_asprintf(mem_ctx, "dsdb out of memory at %s:%d\n", __FILE__, __LINE__)
 765
 766 /*
 767  Create a DSDB schema from the ldb results provided.  This is called
 768  directly when the schema is provisioned from an on-disk LDIF file, or
 769  from dsdb_schema_from_schema_dn in schema_fsmo
 770 */
 771
 772 int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
 773                                  struct ldb_result *schema_res,
 774                                  struct ldb_result *attrs_res, struct ldb_result *objectclass_res,
 775                                  struct dsdb_schema **schema_out,
 776                                  char **error_string)
 777 {
 778         WERROR status;
 779         unsigned int i;
 780         const struct ldb_val *prefix_val;
 781         const struct ldb_val *info_val;
 782         struct ldb_val info_val_default;
 783         struct dsdb_schema *schema;
 784
 785         schema = dsdb_new_schema(mem_ctx);
 786         if (!schema) {
 787                 dsdb_oom(error_string, mem_ctx);
 788                 return ldb_operr(ldb);
 789         }
 790
 791         schema->base_dn = talloc_steal(schema, schema_res->msgs[0]->dn);
 792
 793         prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap");
 794         if (!prefix_val) {
 795                 *error_string = talloc_asprintf(mem_ctx,
 796                                                 "schema_fsmo_init: no prefixMap attribute found");
 797                 DEBUG(0,(__location__ ": %s\n", *error_string));
 798                 return LDB_ERR_CONSTRAINT_VIOLATION;
 799         }
 800         info_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "schemaInfo");
 801         if (!info_val) {
 802                 status = dsdb_schema_info_blob_new(mem_ctx, &info_val_default);
 803                 if (!W_ERROR_IS_OK(status)) {
 804                         *error_string = talloc_asprintf(mem_ctx,
 805                                                         "schema_fsmo_init: dsdb_schema_info_blob_new() failed - %s",
 806                                                         win_errstr(status));
 807                         DEBUG(0,(__location__ ": %s\n", *error_string));
 808                         return ldb_operr(ldb);
 809                 }
 810                 info_val = &info_val_default;
 811         }
 812
 813         status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val);
 814         if (!W_ERROR_IS_OK(status)) {
 815                 *error_string = talloc_asprintf(mem_ctx,
 816                               "schema_fsmo_init: failed to load oid mappings: %s",
 817                               win_errstr(status));
 818                 DEBUG(0,(__location__ ": %s\n", *error_string));
 819                 return LDB_ERR_CONSTRAINT_VIOLATION;
 820         }
 821
 822         for (i=0; i < attrs_res->count; i++) {
 823                 status = dsdb_attribute_from_ldb(ldb, schema, attrs_res->msgs[i]);
 824                 if (!W_ERROR_IS_OK(status)) {
 825                         *error_string = talloc_asprintf(mem_ctx,
 826                                       "schema_fsmo_init: failed to load attribute definition: %s:%s",
 827                                       ldb_dn_get_linearized(attrs_res->msgs[i]->dn),
 828                                       win_errstr(status));
 829                         DEBUG(0,(__location__ ": %s\n", *error_string));
 830                         return LDB_ERR_CONSTRAINT_VIOLATION;
 831                 }
 832         }
 833
 834         for (i=0; i < objectclass_res->count; i++) {
 835                 status = dsdb_class_from_ldb(schema, objectclass_res->msgs[i]);
 836                 if (!W_ERROR_IS_OK(status)) {
 837                         *error_string = talloc_asprintf(mem_ctx,
 838                                       "schema_fsmo_init: failed to load class definition: %s:%s",
 839                                       ldb_dn_get_linearized(objectclass_res->msgs[i]->dn),
 840                                       win_errstr(status));
 841                         DEBUG(0,(__location__ ": %s\n", *error_string));
 842                         return LDB_ERR_CONSTRAINT_VIOLATION;
 843                 }
 844         }
 845
 846         schema->fsmo.master_dn = ldb_msg_find_attr_as_dn(ldb, schema, schema_res->msgs[0], "fSMORoleOwner");
 847         if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), schema->fsmo.master_dn) == 0) {
 848                 schema->fsmo.we_are_master = true;
 849         } else {
 850                 schema->fsmo.we_are_master = false;
 851         }
 852
 853         DEBUG(5, ("schema_fsmo_init: we are master: %s\n",
 854                   (schema->fsmo.we_are_master?"yes":"no")));
 855
 856         *schema_out = schema;
 857         return LDB_SUCCESS;
 858 }