source4/lib/ldb-samba/ldif_handlers.c

   1 /*
   2    ldb database library - ldif handlers for Samba
   3
   4    Copyright (C) Andrew Tridgell 2005
   5    Copyright (C) Andrew Bartlett 2006-2009
   6    Copyright (C) Matthias Dieter Wallnöfer 2009
   7      ** NOTE! The following LGPL license applies to the ldb
   8      ** library. This does NOT imply that all of Samba is released
   9      ** under the LGPL
  10
  11    This library is free software; you can redistribute it and/or
  12    modify it under the terms of the GNU Lesser General Public
  13    License as published by the Free Software Foundation; either
  14    version 3 of the License, or (at your option) any later version.
  15
  16    This library is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19    Lesser General Public License for more details.
  20
  21    You should have received a copy of the GNU Lesser General Public
  22    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "includes.h"
  26 #include "lib/ldb/include/ldb.h"
  27 #include "lib/ldb/include/ldb_module.h"
  28 #include "ldb_handlers.h"
  29 #include "dsdb/samdb/samdb.h"
  30 #include "librpc/gen_ndr/ndr_security.h"
  31 #include "librpc/gen_ndr/ndr_misc.h"
  32 #include "librpc/gen_ndr/ndr_drsblobs.h"
  33 #include "librpc/ndr/libndr.h"
  34 #include "libcli/security/security.h"
  35 #include "param/param.h"
  36 #include "../lib/util/asn1.h"
  37
  38 /*
  39   use ndr_print_* to convert a NDR formatted blob to a ldif formatted blob
  40
  41   If mask_errors is true, then function succeeds but out data
  42   is set to "<Unable to decode binary data>" message
  43
  44   \return 0 on success; -1 on error
  45 */
  46 static int ldif_write_NDR(struct ldb_context *ldb, void *mem_ctx,
  47                           const struct ldb_val *in, struct ldb_val *out,
  48                           size_t struct_size,
  49                           ndr_pull_flags_fn_t pull_fn,
  50                           ndr_print_fn_t print_fn,
  51                           bool mask_errors)
  52 {
  53         uint8_t *p;
  54         enum ndr_err_code err;
  55         if (!(ldb_get_flags(ldb) & LDB_FLG_SHOW_BINARY)) {
  56                 return ldb_handler_copy(ldb, mem_ctx, in, out);
  57         }
  58         p = talloc_size(mem_ctx, struct_size);
  59         err = ndr_pull_struct_blob(in, mem_ctx,
  60                                    p, pull_fn);
  61         if (err != NDR_ERR_SUCCESS) {
  62                 /* fail in not in mask_error mode */
  63                 if (!mask_errors) {
  64                         return -1;
  65                 }
  66                 talloc_free(p);
  67                 out->data = (uint8_t *)talloc_strdup(mem_ctx, "<Unable to decode binary data>");
  68                 out->length = strlen((const char *)out->data);
  69                 return 0;
  70         }
  71         out->data = (uint8_t *)ndr_print_struct_string(mem_ctx, print_fn, "NDR", p);
  72         talloc_free(p);
  73         if (out->data == NULL) {
  74                 return ldb_handler_copy(ldb, mem_ctx, in, out);
  75         }
  76         out->length = strlen((char *)out->data);
  77         return 0;
  78 }
  79
  80 /*
  81   convert a ldif formatted objectSid to a NDR formatted blob
  82 */
  83 static int ldif_read_objectSid(struct ldb_context *ldb, void *mem_ctx,
  84                                const struct ldb_val *in, struct ldb_val *out)
  85 {
  86         enum ndr_err_code ndr_err;
  87         struct dom_sid *sid;
  88         sid = dom_sid_parse_length(mem_ctx, in);
  89         if (sid == NULL) {
  90                 return -1;
  91         }
  92         ndr_err = ndr_push_struct_blob(out, mem_ctx, sid,
  93                                        (ndr_push_flags_fn_t)ndr_push_dom_sid);
  94         talloc_free(sid);
  95         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  96                 return -1;
  97         }
  98         return 0;
  99 }
 100
 101 /*
 102   convert a NDR formatted blob to a ldif formatted objectSid
 103 */
 104 int ldif_write_objectSid(struct ldb_context *ldb, void *mem_ctx,
 105                                 const struct ldb_val *in, struct ldb_val *out)
 106 {
 107         struct dom_sid *sid;
 108         enum ndr_err_code ndr_err;
 109
 110         sid = talloc(mem_ctx, struct dom_sid);
 111         if (sid == NULL) {
 112                 return -1;
 113         }
 114         ndr_err = ndr_pull_struct_blob_all(in, sid, sid,
 115                                            (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
 116         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 117                 talloc_free(sid);
 118                 return -1;
 119         }
 120         *out = data_blob_string_const(dom_sid_string(mem_ctx, sid));
 121         talloc_free(sid);
 122         if (out->data == NULL) {
 123                 return -1;
 124         }
 125         return 0;
 126 }
 127
 128 bool ldif_comparision_objectSid_isString(const struct ldb_val *v)
 129 {
 130         if (v->length < 3) {
 131                 return false;
 132         }
 133
 134         if (strncmp("S-", (const char *)v->data, 2) != 0) return false;
 135
 136         return true;
 137 }
 138
 139 /*
 140   compare two objectSids
 141 */
 142 static int ldif_comparison_objectSid(struct ldb_context *ldb, void *mem_ctx,
 143                                     const struct ldb_val *v1, const struct ldb_val *v2)
 144 {
 145         if (ldif_comparision_objectSid_isString(v1) && ldif_comparision_objectSid_isString(v2)) {
 146                 return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 147         } else if (ldif_comparision_objectSid_isString(v1)
 148                    && !ldif_comparision_objectSid_isString(v2)) {
 149                 struct ldb_val v;
 150                 int ret;
 151                 if (ldif_read_objectSid(ldb, mem_ctx, v1, &v) != 0) {
 152                         /* Perhaps not a string after all */
 153                         return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 154                 }
 155                 ret = ldb_comparison_binary(ldb, mem_ctx, &v, v2);
 156                 talloc_free(v.data);
 157                 return ret;
 158         } else if (!ldif_comparision_objectSid_isString(v1)
 159                    && ldif_comparision_objectSid_isString(v2)) {
 160                 struct ldb_val v;
 161                 int ret;
 162                 if (ldif_read_objectSid(ldb, mem_ctx, v2, &v) != 0) {
 163                         /* Perhaps not a string after all */
 164                         return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 165                 }
 166                 ret = ldb_comparison_binary(ldb, mem_ctx, v1, &v);
 167                 talloc_free(v.data);
 168                 return ret;
 169         }
 170         return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 171 }
 172
 173 /*
 174   canonicalise a objectSid
 175 */
 176 static int ldif_canonicalise_objectSid(struct ldb_context *ldb, void *mem_ctx,
 177                                       const struct ldb_val *in, struct ldb_val *out)
 178 {
 179         if (ldif_comparision_objectSid_isString(in)) {
 180                 if (ldif_read_objectSid(ldb, mem_ctx, in, out) != 0) {
 181                         /* Perhaps not a string after all */
 182                         return ldb_handler_copy(ldb, mem_ctx, in, out);
 183                 }
 184                 return 0;
 185         }
 186         return ldb_handler_copy(ldb, mem_ctx, in, out);
 187 }
 188
 189 static int extended_dn_read_SID(struct ldb_context *ldb, void *mem_ctx,
 190                               const struct ldb_val *in, struct ldb_val *out)
 191 {
 192         struct dom_sid sid;
 193         enum ndr_err_code ndr_err;
 194         if (ldif_comparision_objectSid_isString(in)) {
 195                 if (ldif_read_objectSid(ldb, mem_ctx, in, out) == 0) {
 196                         return 0;
 197                 }
 198         }
 199
 200         /* Perhaps not a string after all */
 201         *out = data_blob_talloc(mem_ctx, NULL, in->length/2+1);
 202
 203         if (!out->data) {
 204                 return -1;
 205         }
 206
 207         (*out).length = strhex_to_str((char *)out->data, out->length,
 208                                      (const char *)in->data, in->length);
 209
 210         /* Check it looks like a SID */
 211         ndr_err = ndr_pull_struct_blob_all(out, mem_ctx, &sid,
 212                                            (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
 213         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 214                 return -1;
 215         }
 216         return 0;
 217 }
 218
 219 /*
 220   convert a ldif formatted objectGUID to a NDR formatted blob
 221 */
 222 static int ldif_read_objectGUID(struct ldb_context *ldb, void *mem_ctx,
 223                                 const struct ldb_val *in, struct ldb_val *out)
 224 {
 225         struct GUID guid;
 226         NTSTATUS status;
 227
 228         status = GUID_from_data_blob(in, &guid);
 229         if (!NT_STATUS_IS_OK(status)) {
 230                 return -1;
 231         }
 232
 233         status = GUID_to_ndr_blob(&guid, mem_ctx, out);
 234         if (!NT_STATUS_IS_OK(status)) {
 235                 return -1;
 236         }
 237         return 0;
 238 }
 239
 240 /*
 241   convert a NDR formatted blob to a ldif formatted objectGUID
 242 */
 243 static int ldif_write_objectGUID(struct ldb_context *ldb, void *mem_ctx,
 244                                  const struct ldb_val *in, struct ldb_val *out)
 245 {
 246         struct GUID guid;
 247         NTSTATUS status;
 248
 249         status = GUID_from_ndr_blob(in, &guid);
 250         if (!NT_STATUS_IS_OK(status)) {
 251                 return -1;
 252         }
 253         out->data = (uint8_t *)GUID_string(mem_ctx, &guid);
 254         if (out->data == NULL) {
 255                 return -1;
 256         }
 257         out->length = strlen((const char *)out->data);
 258         return 0;
 259 }
 260
 261 static bool ldif_comparision_objectGUID_isString(const struct ldb_val *v)
 262 {
 263         if (v->length != 36 && v->length != 38) return false;
 264
 265         /* Might be a GUID string, can't be a binary GUID (fixed 16 bytes) */
 266         return true;
 267 }
 268
 269 static int extended_dn_read_GUID(struct ldb_context *ldb, void *mem_ctx,
 270                               const struct ldb_val *in, struct ldb_val *out)
 271 {
 272         struct GUID guid;
 273         NTSTATUS status;
 274
 275         if (in->length == 36 && ldif_read_objectGUID(ldb, mem_ctx, in, out) == 0) {
 276                 return 0;
 277         }
 278
 279         /* Try as 'hex' form */
 280         if (in->length != 32) {
 281                 return -1;
 282         }
 283
 284         *out = data_blob_talloc(mem_ctx, NULL, in->length/2+1);
 285
 286         if (!out->data) {
 287                 return -1;
 288         }
 289
 290         (*out).length = strhex_to_str((char *)out->data, out->length,
 291                                       (const char *)in->data, in->length);
 292
 293         /* Check it looks like a GUID */
 294         status = GUID_from_ndr_blob(out, &guid);
 295         if (!NT_STATUS_IS_OK(status)) {
 296                 data_blob_free(out);
 297                 return -1;
 298         }
 299         return 0;
 300 }
 301
 302 /*
 303   compare two objectGUIDs
 304 */
 305 static int ldif_comparison_objectGUID(struct ldb_context *ldb, void *mem_ctx,
 306                                      const struct ldb_val *v1, const struct ldb_val *v2)
 307 {
 308         if (ldif_comparision_objectGUID_isString(v1) && ldif_comparision_objectGUID_isString(v2)) {
 309                 return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 310         } else if (ldif_comparision_objectGUID_isString(v1)
 311                    && !ldif_comparision_objectGUID_isString(v2)) {
 312                 struct ldb_val v;
 313                 int ret;
 314                 if (ldif_read_objectGUID(ldb, mem_ctx, v1, &v) != 0) {
 315                         /* Perhaps it wasn't a valid string after all */
 316                         return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 317                 }
 318                 ret = ldb_comparison_binary(ldb, mem_ctx, &v, v2);
 319                 talloc_free(v.data);
 320                 return ret;
 321         } else if (!ldif_comparision_objectGUID_isString(v1)
 322                    && ldif_comparision_objectGUID_isString(v2)) {
 323                 struct ldb_val v;
 324                 int ret;
 325                 if (ldif_read_objectGUID(ldb, mem_ctx, v2, &v) != 0) {
 326                         /* Perhaps it wasn't a valid string after all */
 327                         return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 328                 }
 329                 ret = ldb_comparison_binary(ldb, mem_ctx, v1, &v);
 330                 talloc_free(v.data);
 331                 return ret;
 332         }
 333         return ldb_comparison_binary(ldb, mem_ctx, v1, v2);
 334 }
 335
 336 /*
 337   canonicalise a objectGUID
 338 */
 339 static int ldif_canonicalise_objectGUID(struct ldb_context *ldb, void *mem_ctx,
 340                                        const struct ldb_val *in, struct ldb_val *out)
 341 {
 342         if (ldif_comparision_objectGUID_isString(in)) {
 343                 if (ldif_read_objectGUID(ldb, mem_ctx, in, out) != 0) {
 344                         /* Perhaps it wasn't a valid string after all */
 345                         return ldb_handler_copy(ldb, mem_ctx, in, out);
 346                 }
 347                 return 0;
 348         }
 349         return ldb_handler_copy(ldb, mem_ctx, in, out);
 350 }
 351
 352
 353 /*
 354   convert a ldif (SDDL) formatted ntSecurityDescriptor to a NDR formatted blob
 355 */
 356 static int ldif_read_ntSecurityDescriptor(struct ldb_context *ldb, void *mem_ctx,
 357                                           const struct ldb_val *in, struct ldb_val *out)
 358 {
 359         struct security_descriptor *sd;
 360         enum ndr_err_code ndr_err;
 361
 362         sd = talloc(mem_ctx, struct security_descriptor);
 363         if (sd == NULL) {
 364                 return -1;
 365         }
 366
 367         ndr_err = ndr_pull_struct_blob(in, sd, sd,
 368                                        (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 369         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 370                 /* If this does not parse, then it is probably SDDL, and we should try it that way */
 371
 372                 const struct dom_sid *sid = samdb_domain_sid(ldb);
 373                 talloc_free(sd);
 374                 sd = sddl_decode(mem_ctx, (const char *)in->data, sid);
 375                 if (sd == NULL) {
 376                         return -1;
 377                 }
 378         }
 379
 380         ndr_err = ndr_push_struct_blob(out, mem_ctx, sd,
 381                                        (ndr_push_flags_fn_t)ndr_push_security_descriptor);
 382         talloc_free(sd);
 383         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 384                 return -1;
 385         }
 386
 387         return 0;
 388 }
 389
 390 /*
 391   convert a NDR formatted blob to a ldif formatted ntSecurityDescriptor (SDDL format)
 392 */
 393 static int ldif_write_ntSecurityDescriptor(struct ldb_context *ldb, void *mem_ctx,
 394                                            const struct ldb_val *in, struct ldb_val *out)
 395 {
 396         struct security_descriptor *sd;
 397         enum ndr_err_code ndr_err;
 398
 399         if (ldb_get_flags(ldb) & LDB_FLG_SHOW_BINARY) {
 400                 return ldif_write_NDR(ldb, mem_ctx, in, out,
 401                                       sizeof(struct security_descriptor),
 402                                       (ndr_pull_flags_fn_t)ndr_pull_security_descriptor,
 403                                       (ndr_print_fn_t)ndr_print_security_descriptor,
 404                                       true);
 405
 406         }
 407
 408         sd = talloc(mem_ctx, struct security_descriptor);
 409         if (sd == NULL) {
 410                 return -1;
 411         }
 412         /* We can't use ndr_pull_struct_blob_all because this contains relative pointers */
 413         ndr_err = ndr_pull_struct_blob(in, sd, sd,
 414                                            (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 415         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 416                 talloc_free(sd);
 417                 return -1;
 418         }
 419         out->data = (uint8_t *)sddl_encode(mem_ctx, sd, samdb_domain_sid_cache_only(ldb));
 420         talloc_free(sd);
 421         if (out->data == NULL) {
 422                 return -1;
 423         }
 424         out->length = strlen((const char *)out->data);
 425         return 0;
 426 }
 427
 428 /*
 429    canonicalise an objectCategory.  We use the short form as the cannoical form:
 430    cn=Person,cn=Schema,cn=Configuration,<basedn> becomes 'person'
 431 */
 432
 433 static int ldif_canonicalise_objectCategory(struct ldb_context *ldb, void *mem_ctx,
 434                                             const struct ldb_val *in, struct ldb_val *out)
 435 {
 436         struct ldb_dn *dn1 = NULL;
 437         const struct dsdb_schema *schema = dsdb_get_schema(ldb, NULL);
 438         const struct dsdb_class *sclass;
 439         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
 440         if (!tmp_ctx) {
 441                 return LDB_ERR_OPERATIONS_ERROR;
 442         }
 443
 444         if (!schema) {
 445                 talloc_free(tmp_ctx);
 446                 *out = data_blob_talloc(mem_ctx, in->data, in->length);
 447                 if (in->data && !out->data) {
 448                         return LDB_ERR_OPERATIONS_ERROR;
 449                 }
 450                 return LDB_SUCCESS;
 451         }
 452         dn1 = ldb_dn_from_ldb_val(tmp_ctx, ldb, in);
 453         if ( ! ldb_dn_validate(dn1)) {
 454                 const char *lDAPDisplayName = talloc_strndup(tmp_ctx, (char *)in->data, in->length);
 455                 sclass = dsdb_class_by_lDAPDisplayName(schema, lDAPDisplayName);
 456                 if (sclass) {
 457                         struct ldb_dn *dn = ldb_dn_new(mem_ctx, ldb,
 458                                                        sclass->defaultObjectCategory);
 459                         *out = data_blob_string_const(ldb_dn_alloc_casefold(mem_ctx, dn));
 460                         talloc_free(tmp_ctx);
 461
 462                         if (!out->data) {
 463                                 return LDB_ERR_OPERATIONS_ERROR;
 464                         }
 465                         return LDB_SUCCESS;
 466                 } else {
 467                         *out = data_blob_talloc(mem_ctx, in->data, in->length);
 468                         talloc_free(tmp_ctx);
 469
 470                         if (in->data && !out->data) {
 471                                 return LDB_ERR_OPERATIONS_ERROR;
 472                         }
 473                         return LDB_SUCCESS;
 474                 }
 475         }
 476         *out = data_blob_string_const(ldb_dn_alloc_casefold(mem_ctx, dn1));
 477         talloc_free(tmp_ctx);
 478
 479         if (!out->data) {
 480                 return LDB_ERR_OPERATIONS_ERROR;
 481         }
 482         return LDB_SUCCESS;
 483 }
 484
 485 static int ldif_comparison_objectCategory(struct ldb_context *ldb, void *mem_ctx,
 486                                           const struct ldb_val *v1,
 487                                           const struct ldb_val *v2)
 488 {
 489         return ldb_any_comparison(ldb, mem_ctx, ldif_canonicalise_objectCategory,
 490                                   v1, v2);
 491 }
 492
 493 /*
 494   convert a NDR formatted blob to a ldif formatted schemaInfo
 495 */
 496 static int ldif_write_schemaInfo(struct ldb_context *ldb, void *mem_ctx,
 497                                  const struct ldb_val *in, struct ldb_val *out)
 498 {
 499         return ldif_write_NDR(ldb, mem_ctx, in, out,
 500                               sizeof(struct repsFromToBlob),
 501                               (ndr_pull_flags_fn_t)ndr_pull_schemaInfoBlob,
 502                               (ndr_print_fn_t)ndr_print_schemaInfoBlob,
 503                               true);
 504 }
 505
 506 /*
 507   convert a ldif formatted prefixMap to a NDR formatted blob
 508 */
 509 static int ldif_read_prefixMap(struct ldb_context *ldb, void *mem_ctx,
 510                                const struct ldb_val *in, struct ldb_val *out)
 511 {
 512         struct prefixMapBlob *blob;
 513         enum ndr_err_code ndr_err;
 514         char *string, *line, *p, *oid;
 515         DATA_BLOB oid_blob;
 516
 517         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
 518
 519         if (tmp_ctx == NULL) {
 520                 return -1;
 521         }
 522
 523         blob = talloc_zero(tmp_ctx, struct prefixMapBlob);
 524         if (blob == NULL) {
 525                 talloc_free(blob);
 526                 return -1;
 527         }
 528
 529         blob->version = PREFIX_MAP_VERSION_DSDB;
 530
 531         string = talloc_strndup(mem_ctx, (const char *)in->data, in->length);
 532         if (string == NULL) {
 533                 talloc_free(blob);
 534                 return -1;
 535         }
 536
 537         line = string;
 538         while (line && line[0]) {
 539                 p=strchr(line, ';');
 540                 if (p) {
 541                         p[0] = '\0';
 542                 } else {
 543                         p=strchr(line, '\n');
 544                         if (p) {
 545                                 p[0] = '\0';
 546                         }
 547                 }
 548                 /* allow a trailing separator */
 549                 if (line == p) {
 550                         break;
 551                 }
 552
 553                 blob->ctr.dsdb.mappings = talloc_realloc(blob,
 554                                                          blob->ctr.dsdb.mappings,
 555                                                          struct drsuapi_DsReplicaOIDMapping,
 556                                                          blob->ctr.dsdb.num_mappings+1);
 557                 if (!blob->ctr.dsdb.mappings) {
 558                         talloc_free(tmp_ctx);
 559                         return -1;
 560                 }
 561
 562                 blob->ctr.dsdb.mappings[blob->ctr.dsdb.num_mappings].id_prefix = strtoul(line, &oid, 10);
 563
 564                 if (oid[0] != ':') {
 565                         talloc_free(tmp_ctx);
 566                         return -1;
 567                 }
 568
 569                 /* we know there must be at least ":" */
 570                 oid++;
 571
 572                 if (!ber_write_partial_OID_String(blob->ctr.dsdb.mappings, &oid_blob, oid)) {
 573                         talloc_free(tmp_ctx);
 574                         return -1;
 575                 }
 576                 blob->ctr.dsdb.mappings[blob->ctr.dsdb.num_mappings].oid.length = oid_blob.length;
 577                 blob->ctr.dsdb.mappings[blob->ctr.dsdb.num_mappings].oid.binary_oid = oid_blob.data;
 578
 579                 blob->ctr.dsdb.num_mappings++;
 580
 581                 /* Now look past the terminator we added above */
 582                 if (p) {
 583                         line = p + 1;
 584                 } else {
 585                         line = NULL;
 586                 }
 587         }
 588
 589         ndr_err = ndr_push_struct_blob(out, mem_ctx,
 590                                        blob,
 591                                        (ndr_push_flags_fn_t)ndr_push_prefixMapBlob);
 592         talloc_free(tmp_ctx);
 593         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 594                 return -1;
 595         }
 596         return 0;
 597 }
 598
 599 /*
 600   convert a NDR formatted blob to a ldif formatted prefixMap
 601 */
 602 static int ldif_write_prefixMap(struct ldb_context *ldb, void *mem_ctx,
 603                                 const struct ldb_val *in, struct ldb_val *out)
 604 {
 605         struct prefixMapBlob *blob;
 606         enum ndr_err_code ndr_err;
 607         char *string;
 608         uint32_t i;
 609
 610         if (ldb_get_flags(ldb) & LDB_FLG_SHOW_BINARY) {
 611                 int err;
 612                 /* try to decode the blob as S4 prefixMap */
 613                 err = ldif_write_NDR(ldb, mem_ctx, in, out,
 614                                      sizeof(struct prefixMapBlob),
 615                                      (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob,
 616                                      (ndr_print_fn_t)ndr_print_prefixMapBlob,
 617                                      false);
 618                 if (0 == err) {
 619                         return err;
 620                 }
 621                 /* try parsing it as Windows PrefixMap value */
 622                 return ldif_write_NDR(ldb, mem_ctx, in, out,
 623                                       sizeof(struct drsuapi_MSPrefixMap_Ctr),
 624                                       (ndr_pull_flags_fn_t)ndr_pull_drsuapi_MSPrefixMap_Ctr,
 625                                       (ndr_print_fn_t)ndr_print_drsuapi_MSPrefixMap_Ctr,
 626                                       true);
 627         }
 628
 629         blob = talloc(mem_ctx, struct prefixMapBlob);
 630         if (blob == NULL) {
 631                 return -1;
 632         }
 633         ndr_err = ndr_pull_struct_blob_all(in, blob,
 634                                            blob,
 635                                            (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
 636         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 637                 goto failed;
 638         }
 639         if (blob->version != PREFIX_MAP_VERSION_DSDB) {
 640                 goto failed;
 641         }
 642         string = talloc_strdup(mem_ctx, "");
 643         if (string == NULL) {
 644                 goto failed;
 645         }
 646
 647         for (i=0; i < blob->ctr.dsdb.num_mappings; i++) {
 648                 DATA_BLOB oid_blob;
 649                 const char *partial_oid = NULL;
 650
 651                 if (i > 0) {
 652                         string = talloc_asprintf_append(string, ";");
 653                 }
 654
 655                 oid_blob = data_blob_const(blob->ctr.dsdb.mappings[i].oid.binary_oid,
 656                                            blob->ctr.dsdb.mappings[i].oid.length);
 657                 if (!ber_read_partial_OID_String(blob, oid_blob, &partial_oid)) {
 658                         DEBUG(0, ("ber_read_partial_OID failed on prefixMap item with id: 0x%X",
 659                                   blob->ctr.dsdb.mappings[i].id_prefix));
 660                         goto failed;
 661                 }
 662                 string = talloc_asprintf_append(string, "%u:%s",
 663                                                    blob->ctr.dsdb.mappings[i].id_prefix,
 664                                                    partial_oid);
 665                 talloc_free(discard_const(partial_oid));
 666                 if (string == NULL) {
 667                         goto failed;
 668                 }
 669         }
 670
 671         talloc_free(blob);
 672         *out = data_blob_string_const(string);
 673         return 0;
 674
 675 failed:
 676         talloc_free(blob);
 677         return -1;
 678 }
 679
 680 static bool ldif_comparision_prefixMap_isString(const struct ldb_val *v)
 681 {
 682         if (v->length < 4) {
 683                 return true;
 684         }
 685
 686         if (IVAL(v->data, 0) == PREFIX_MAP_VERSION_DSDB) {
 687                 return false;
 688         }
 689
 690         return true;
 691 }
 692
 693 /*
 694   canonicalise a prefixMap
 695 */
 696 static int ldif_canonicalise_prefixMap(struct ldb_context *ldb, void *mem_ctx,
 697                                        const struct ldb_val *in, struct ldb_val *out)
 698 {
 699         if (ldif_comparision_prefixMap_isString(in)) {
 700                 return ldif_read_prefixMap(ldb, mem_ctx, in, out);
 701         }
 702         return ldb_handler_copy(ldb, mem_ctx, in, out);
 703 }
 704
 705 static int ldif_comparison_prefixMap(struct ldb_context *ldb, void *mem_ctx,
 706                                      const struct ldb_val *v1,
 707                                      const struct ldb_val *v2)
 708 {
 709         return ldb_any_comparison(ldb, mem_ctx, ldif_canonicalise_prefixMap,
 710                                   v1, v2);
 711 }
 712
 713 /* length limited conversion of a ldb_val to a int32_t */
 714 static int val_to_int32(const struct ldb_val *in, int32_t *v)
 715 {
 716         char *end;
 717         char buf[64];
 718
 719         /* make sure we don't read past the end of the data */
 720         if (in->length > sizeof(buf)-1) {
 721                 return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
 722         }
 723         strncpy(buf, (char *)in->data, in->length);
 724         buf[in->length] = 0;
 725
 726         /* We've to use "strtoll" here to have the intended overflows.
 727          * Otherwise we may get "LONG_MAX" and the conversion is wrong. */
 728         *v = (int32_t) strtoll(buf, &end, 0);
 729         if (*end != 0) {
 730                 return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
 731         }
 732         return LDB_SUCCESS;
 733 }
 734
 735 /* length limited conversion of a ldb_val to a int64_t */
 736 static int val_to_int64(const struct ldb_val *in, int64_t *v)
 737 {
 738         char *end;
 739         char buf[64];
 740
 741         /* make sure we don't read past the end of the data */
 742         if (in->length > sizeof(buf)-1) {
 743                 return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
 744         }
 745         strncpy(buf, (char *)in->data, in->length);
 746         buf[in->length] = 0;
 747
 748         *v = (int64_t) strtoll(buf, &end, 0);
 749         if (*end != 0) {
 750                 return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
 751         }
 752         return LDB_SUCCESS;
 753 }
 754
 755 /* Canonicalisation of two 32-bit integers */
 756 static int ldif_canonicalise_int32(struct ldb_context *ldb, void *mem_ctx,
 757                         const struct ldb_val *in, struct ldb_val *out)
 758 {
 759         int32_t i;
 760         int ret;
 761
 762         ret = val_to_int32(in, &i);
 763         if (ret != LDB_SUCCESS) {
 764                 return ret;
 765         }
 766         out->data = (uint8_t *) talloc_asprintf(mem_ctx, "%d", i);
 767         if (out->data == NULL) {
 768                 ldb_oom(ldb);
 769                 return LDB_ERR_OPERATIONS_ERROR;
 770         }
 771         out->length = strlen((char *)out->data);
 772         return 0;
 773 }
 774
 775 /* Comparison of two 32-bit integers */
 776 static int ldif_comparison_int32(struct ldb_context *ldb, void *mem_ctx,
 777                                  const struct ldb_val *v1, const struct ldb_val *v2)
 778 {
 779         int32_t i1=0, i2=0;
 780         val_to_int32(v1, &i1);
 781         val_to_int32(v2, &i2);
 782         if (i1 == i2) return 0;
 783         return i1 > i2? 1 : -1;
 784 }
 785
 786 /* Canonicalisation of two 64-bit integers */
 787 static int ldif_canonicalise_int64(struct ldb_context *ldb, void *mem_ctx,
 788                                    const struct ldb_val *in, struct ldb_val *out)
 789 {
 790         int64_t i;
 791         int ret;
 792
 793         ret = val_to_int64(in, &i);
 794         if (ret != LDB_SUCCESS) {
 795                 return ret;
 796         }
 797         out->data = (uint8_t *) talloc_asprintf(mem_ctx, "%lld", (long long)i);
 798         if (out->data == NULL) {
 799                 ldb_oom(ldb);
 800                 return LDB_ERR_OPERATIONS_ERROR;
 801         }
 802         out->length = strlen((char *)out->data);
 803         return 0;
 804 }
 805
 806 /* Comparison of two 64-bit integers */
 807 static int ldif_comparison_int64(struct ldb_context *ldb, void *mem_ctx,
 808                                  const struct ldb_val *v1, const struct ldb_val *v2)
 809 {
 810         int64_t i1=0, i2=0;
 811         val_to_int64(v1, &i1);
 812         val_to_int64(v2, &i2);
 813         if (i1 == i2) return 0;
 814         return i1 > i2? 1 : -1;
 815 }
 816
 817 /*
 818   convert a NDR formatted blob to a ldif formatted repsFromTo
 819 */
 820 static int ldif_write_repsFromTo(struct ldb_context *ldb, void *mem_ctx,
 821                                  const struct ldb_val *in, struct ldb_val *out)
 822 {
 823         return ldif_write_NDR(ldb, mem_ctx, in, out,
 824                               sizeof(struct repsFromToBlob),
 825                               (ndr_pull_flags_fn_t)ndr_pull_repsFromToBlob,
 826                               (ndr_print_fn_t)ndr_print_repsFromToBlob,
 827                               true);
 828 }
 829
 830 /*
 831   convert a NDR formatted blob to a ldif formatted replPropertyMetaData
 832 */
 833 static int ldif_write_replPropertyMetaData(struct ldb_context *ldb, void *mem_ctx,
 834                                            const struct ldb_val *in, struct ldb_val *out)
 835 {
 836         return ldif_write_NDR(ldb, mem_ctx, in, out,
 837                               sizeof(struct replPropertyMetaDataBlob),
 838                               (ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob,
 839                               (ndr_print_fn_t)ndr_print_replPropertyMetaDataBlob,
 840                               true);
 841 }
 842
 843 /*
 844   convert a NDR formatted blob to a ldif formatted replUpToDateVector
 845 */
 846 static int ldif_write_replUpToDateVector(struct ldb_context *ldb, void *mem_ctx,
 847                                          const struct ldb_val *in, struct ldb_val *out)
 848 {
 849         return ldif_write_NDR(ldb, mem_ctx, in, out,
 850                               sizeof(struct replUpToDateVectorBlob),
 851                               (ndr_pull_flags_fn_t)ndr_pull_replUpToDateVectorBlob,
 852                               (ndr_print_fn_t)ndr_print_replUpToDateVectorBlob,
 853                               true);
 854 }
 855
 856
 857 static int extended_dn_write_hex(struct ldb_context *ldb, void *mem_ctx,
 858                                  const struct ldb_val *in, struct ldb_val *out)
 859 {
 860         *out = data_blob_string_const(data_blob_hex_string_lower(mem_ctx, in));
 861         if (!out->data) {
 862                 return -1;
 863         }
 864         return 0;
 865 }
 866
 867
 868 /*
 869   write a 64 bit 2-part range
 870 */
 871 static int ldif_write_range64(struct ldb_context *ldb, void *mem_ctx,
 872                               const struct ldb_val *in, struct ldb_val *out)
 873 {
 874         int64_t v;
 875         int ret;
 876         ret = val_to_int64(in, &v);
 877         if (ret != LDB_SUCCESS) {
 878                 return ret;
 879         }
 880         out->data = (uint8_t *)talloc_asprintf(mem_ctx, "%lu-%lu",
 881                                                (unsigned long)(v&0xFFFFFFFF),
 882                                                (unsigned long)(v>>32));
 883         if (out->data == NULL) {
 884                 ldb_oom(ldb);
 885                 return LDB_ERR_OPERATIONS_ERROR;
 886         }
 887         out->length = strlen((char *)out->data);
 888         return LDB_SUCCESS;
 889 }
 890
 891 /*
 892   read a 64 bit 2-part range
 893 */
 894 static int ldif_read_range64(struct ldb_context *ldb, void *mem_ctx,
 895                               const struct ldb_val *in, struct ldb_val *out)
 896 {
 897         unsigned long high, low;
 898         char buf[64];
 899
 900         if (memchr(in->data, '-', in->length) == NULL) {
 901                 return ldb_handler_copy(ldb, mem_ctx, in, out);
 902         }
 903
 904         if (in->length > sizeof(buf)-1) {
 905                 return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
 906         }
 907         strncpy(buf, (const char *)in->data, in->length);
 908         buf[in->length] = 0;
 909
 910         if (sscanf(buf, "%lu-%lu", &low, &high) != 2) {
 911                 return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
 912         }
 913
 914         out->data = (uint8_t *)talloc_asprintf(mem_ctx, "%llu",
 915                                                (unsigned long long)(((uint64_t)high)<<32) | (low));
 916
 917         if (out->data == NULL) {
 918                 ldb_oom(ldb);
 919                 return LDB_ERR_OPERATIONS_ERROR;
 920         }
 921         out->length = strlen((char *)out->data);
 922         return LDB_SUCCESS;
 923 }
 924
 925 static const struct ldb_schema_syntax samba_syntaxes[] = {
 926         {
 927                 .name             = LDB_SYNTAX_SAMBA_SID,
 928                 .ldif_read_fn     = ldif_read_objectSid,
 929                 .ldif_write_fn    = ldif_write_objectSid,
 930                 .canonicalise_fn  = ldif_canonicalise_objectSid,
 931                 .comparison_fn    = ldif_comparison_objectSid
 932         },{
 933                 .name             = LDB_SYNTAX_SAMBA_SECURITY_DESCRIPTOR,
 934                 .ldif_read_fn     = ldif_read_ntSecurityDescriptor,
 935                 .ldif_write_fn    = ldif_write_ntSecurityDescriptor,
 936                 .canonicalise_fn  = ldb_handler_copy,
 937                 .comparison_fn    = ldb_comparison_binary
 938         },{
 939                 .name             = LDB_SYNTAX_SAMBA_GUID,
 940                 .ldif_read_fn     = ldif_read_objectGUID,
 941                 .ldif_write_fn    = ldif_write_objectGUID,
 942                 .canonicalise_fn  = ldif_canonicalise_objectGUID,
 943                 .comparison_fn    = ldif_comparison_objectGUID
 944         },{
 945                 .name             = LDB_SYNTAX_SAMBA_OBJECT_CATEGORY,
 946                 .ldif_read_fn     = ldb_handler_copy,
 947                 .ldif_write_fn    = ldb_handler_copy,
 948                 .canonicalise_fn  = ldif_canonicalise_objectCategory,
 949                 .comparison_fn    = ldif_comparison_objectCategory
 950         },{
 951                 .name             = LDB_SYNTAX_SAMBA_SCHEMAINFO,
 952                 .ldif_read_fn     = ldb_handler_copy,
 953                 .ldif_write_fn    = ldif_write_schemaInfo,
 954                 .canonicalise_fn  = ldb_handler_copy,
 955                 .comparison_fn    = ldb_comparison_binary
 956         },{
 957                 .name             = LDB_SYNTAX_SAMBA_PREFIX_MAP,
 958                 .ldif_read_fn     = ldif_read_prefixMap,
 959                 .ldif_write_fn    = ldif_write_prefixMap,
 960                 .canonicalise_fn  = ldif_canonicalise_prefixMap,
 961                 .comparison_fn    = ldif_comparison_prefixMap
 962         },{
 963                 .name             = LDB_SYNTAX_SAMBA_INT32,
 964                 .ldif_read_fn     = ldb_handler_copy,
 965                 .ldif_write_fn    = ldb_handler_copy,
 966                 .canonicalise_fn  = ldif_canonicalise_int32,
 967                 .comparison_fn    = ldif_comparison_int32
 968         },{
 969                 .name             = LDB_SYNTAX_SAMBA_REPSFROMTO,
 970                 .ldif_read_fn     = ldb_handler_copy,
 971                 .ldif_write_fn    = ldif_write_repsFromTo,
 972                 .canonicalise_fn  = ldb_handler_copy,
 973                 .comparison_fn    = ldb_comparison_binary
 974         },{
 975                 .name             = LDB_SYNTAX_SAMBA_REPLPROPERTYMETADATA,
 976                 .ldif_read_fn     = ldb_handler_copy,
 977                 .ldif_write_fn    = ldif_write_replPropertyMetaData,
 978                 .canonicalise_fn  = ldb_handler_copy,
 979                 .comparison_fn    = ldb_comparison_binary
 980         },{
 981                 .name             = LDB_SYNTAX_SAMBA_REPLUPTODATEVECTOR,
 982                 .ldif_read_fn     = ldb_handler_copy,
 983                 .ldif_write_fn    = ldif_write_replUpToDateVector,
 984                 .canonicalise_fn  = ldb_handler_copy,
 985                 .comparison_fn    = ldb_comparison_binary
 986         },{
 987                 .name             = DSDB_SYNTAX_BINARY_DN,
 988                 .ldif_read_fn     = ldb_handler_copy,
 989                 .ldif_write_fn    = ldb_handler_copy,
 990                 .canonicalise_fn  = dsdb_dn_binary_canonicalise,
 991                 .comparison_fn    = dsdb_dn_binary_comparison
 992         },{
 993                 .name             = DSDB_SYNTAX_STRING_DN,
 994                 .ldif_read_fn     = ldb_handler_copy,
 995                 .ldif_write_fn    = ldb_handler_copy,
 996                 .canonicalise_fn  = dsdb_dn_string_canonicalise,
 997                 .comparison_fn    = dsdb_dn_string_comparison
 998         },{
 999                 .name             = LDB_SYNTAX_SAMBA_RANGE64,
1000                 .ldif_read_fn     = ldif_read_range64,
1001                 .ldif_write_fn    = ldif_write_range64,
1002                 .canonicalise_fn  = ldif_canonicalise_int64,
1003                 .comparison_fn    = ldif_comparison_int64
1004         },
1005 };
1006
1007 static const struct ldb_dn_extended_syntax samba_dn_syntax[] = {
1008         {
1009                 .name             = "SID",
1010                 .read_fn          = extended_dn_read_SID,
1011                 .write_clear_fn   = ldif_write_objectSid,
1012                 .write_hex_fn     = extended_dn_write_hex
1013         },{
1014                 .name             = "GUID",
1015                 .read_fn          = extended_dn_read_GUID,
1016                 .write_clear_fn   = ldif_write_objectGUID,
1017                 .write_hex_fn     = extended_dn_write_hex
1018         },{
1019                 .name             = "WKGUID",
1020                 .read_fn          = ldb_handler_copy,
1021                 .write_clear_fn   = ldb_handler_copy,
1022                 .write_hex_fn     = ldb_handler_copy
1023         },{
1024                 .name             = "RMD_INVOCID",
1025                 .read_fn          = extended_dn_read_GUID,
1026                 .write_clear_fn   = ldif_write_objectGUID,
1027                 .write_hex_fn     = extended_dn_write_hex
1028         },{
1029                 .name             = "RMD_FLAGS",
1030                 .read_fn          = ldb_handler_copy,
1031                 .write_clear_fn   = ldb_handler_copy,
1032                 .write_hex_fn     = ldb_handler_copy
1033         },{
1034                 .name             = "RMD_ADDTIME",
1035                 .read_fn          = ldb_handler_copy,
1036                 .write_clear_fn   = ldb_handler_copy,
1037                 .write_hex_fn     = ldb_handler_copy
1038         },{
1039                 .name             = "RMD_CHANGETIME",
1040                 .read_fn          = ldb_handler_copy,
1041                 .write_clear_fn   = ldb_handler_copy,
1042                 .write_hex_fn     = ldb_handler_copy
1043         },{
1044                 .name             = "RMD_LOCAL_USN",
1045                 .read_fn          = ldb_handler_copy,
1046                 .write_clear_fn   = ldb_handler_copy,
1047                 .write_hex_fn     = ldb_handler_copy
1048         },{
1049                 .name             = "RMD_ORIGINATING_USN",
1050                 .read_fn          = ldb_handler_copy,
1051                 .write_clear_fn   = ldb_handler_copy,
1052                 .write_hex_fn     = ldb_handler_copy
1053         },{
1054                 .name             = "RMD_VERSION",
1055                 .read_fn          = ldb_handler_copy,
1056                 .write_clear_fn   = ldb_handler_copy,
1057                 .write_hex_fn     = ldb_handler_copy
1058         }
1059 };
1060
1061 /* TODO: Should be dynamic at some point */
1062 static const struct {
1063         const char *name;
1064         const char *syntax;
1065 } samba_attributes[] = {
1066         { "objectSid",                  LDB_SYNTAX_SAMBA_SID },
1067         { "securityIdentifier",         LDB_SYNTAX_SAMBA_SID },
1068         { "tokenGroups",                LDB_SYNTAX_SAMBA_SID },
1069         { "ntSecurityDescriptor",       LDB_SYNTAX_SAMBA_SECURITY_DESCRIPTOR },
1070         { "objectGUID",                 LDB_SYNTAX_SAMBA_GUID },
1071         { "invocationId",               LDB_SYNTAX_SAMBA_GUID },
1072         { "schemaIDGUID",               LDB_SYNTAX_SAMBA_GUID },
1073         { "oMSyntax",                   LDB_SYNTAX_SAMBA_INT32 },
1074         { "attributeSecurityGUID",      LDB_SYNTAX_SAMBA_GUID },
1075         { "parentGUID",                 LDB_SYNTAX_SAMBA_GUID },
1076         { "siteGUID",                   LDB_SYNTAX_SAMBA_GUID },
1077         { "pKTGUID",                    LDB_SYNTAX_SAMBA_GUID },
1078         { "fRSVersionGUID",             LDB_SYNTAX_SAMBA_GUID },
1079         { "fRSReplicaSetGUID",          LDB_SYNTAX_SAMBA_GUID },
1080         { "netbootGUID",                LDB_SYNTAX_SAMBA_GUID },
1081         { "msDS-OptionalFeatureGUID",   LDB_SYNTAX_SAMBA_GUID },
1082         { "objectCategory",             LDB_SYNTAX_SAMBA_OBJECT_CATEGORY },
1083         { "schemaInfo",                 LDB_SYNTAX_SAMBA_SCHEMAINFO },
1084         { "prefixMap",                  LDB_SYNTAX_SAMBA_PREFIX_MAP },
1085         { "repsFrom",                   LDB_SYNTAX_SAMBA_REPSFROMTO },
1086         { "repsTo",                     LDB_SYNTAX_SAMBA_REPSFROMTO },
1087         { "replPropertyMetaData",       LDB_SYNTAX_SAMBA_REPLPROPERTYMETADATA },
1088         { "replUpToDateVector",         LDB_SYNTAX_SAMBA_REPLUPTODATEVECTOR },
1089         { "rIDAllocationPool",          LDB_SYNTAX_SAMBA_RANGE64 },
1090         { "rIDPreviousAllocationPool",  LDB_SYNTAX_SAMBA_RANGE64 },
1091         { "rIDAvailablePool",           LDB_SYNTAX_SAMBA_RANGE64 },
1092 };
1093
1094 const struct ldb_schema_syntax *ldb_samba_syntax_by_name(struct ldb_context *ldb, const char *name)
1095 {
1096         unsigned int j;
1097         const struct ldb_schema_syntax *s = NULL;
1098
1099         for (j=0; j < ARRAY_SIZE(samba_syntaxes); j++) {
1100                 if (strcmp(name, samba_syntaxes[j].name) == 0) {
1101                         s = &samba_syntaxes[j];
1102                         break;
1103                 }
1104         }
1105         return s;
1106 }
1107
1108 const struct ldb_schema_syntax *ldb_samba_syntax_by_lDAPDisplayName(struct ldb_context *ldb, const char *name)
1109 {
1110         unsigned int j;
1111         const struct ldb_schema_syntax *s = NULL;
1112
1113         for (j=0; j < ARRAY_SIZE(samba_attributes); j++) {
1114                 if (strcmp(samba_attributes[j].name, name) == 0) {
1115                         s = ldb_samba_syntax_by_name(ldb, samba_attributes[j].syntax);
1116                         break;
1117                 }
1118         }
1119
1120         return s;
1121 }
1122
1123 /*
1124   register the samba ldif handlers
1125 */
1126 int ldb_register_samba_handlers(struct ldb_context *ldb)
1127 {
1128         unsigned int i;
1129
1130         for (i=0; i < ARRAY_SIZE(samba_attributes); i++) {
1131                 int ret;
1132                 const struct ldb_schema_syntax *s = NULL;
1133
1134                 s = ldb_samba_syntax_by_name(ldb, samba_attributes[i].syntax);
1135
1136                 if (!s) {
1137                         s = ldb_standard_syntax_by_name(ldb, samba_attributes[i].syntax);
1138                 }
1139
1140                 if (!s) {
1141                         return -1;
1142                 }
1143
1144                 ret = ldb_schema_attribute_add_with_syntax(ldb, samba_attributes[i].name, LDB_ATTR_FLAG_FIXED, s);
1145                 if (ret != LDB_SUCCESS) {
1146                         return ret;
1147                 }
1148         }
1149
1150         for (i=0; i < ARRAY_SIZE(samba_dn_syntax); i++) {
1151                 int ret;
1152                 ret = ldb_dn_extended_add_syntax(ldb, LDB_ATTR_FLAG_FIXED, &samba_dn_syntax[i]);
1153                 if (ret != LDB_SUCCESS) {
1154                         return ret;
1155                 }
1156
1157
1158         }
1159
1160         return LDB_SUCCESS;
1161 }