source4/dsdb/samdb/cracknames.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    crachnames implementation for the drsuapi pipe
   5    DsCrackNames()
   6
   7    Copyright (C) Stefan Metzmacher 2004
   8    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
   9    Copyright (C) Matthieu Patou <mat@matws.net> 2012
  10    Copyright (C) Catalyst .Net Ltd 2017
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24 */
  25
  26 #include "includes.h"
  27 #include "librpc/gen_ndr/drsuapi.h"
  28 #include "lib/events/events.h"
  29 #include <ldb.h>
  30 #include <ldb_errors.h>
  31 #include "auth/kerberos/kerberos.h"
  32 #include "libcli/ldap/ldap_ndr.h"
  33 #include "libcli/security/security.h"
  34 #include "auth/auth.h"
  35 #include "../lib/util/util_ldb.h"
  36 #include "dsdb/samdb/samdb.h"
  37 #include "dsdb/common/util.h"
  38 #include "param/param.h"
  39
  40 #undef strcasecmp
  41
  42 static WERROR DsCrackNameOneFilter(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
  43                                    struct smb_krb5_context *smb_krb5_context,
  44                                    uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
  45                                    enum drsuapi_DsNameFormat format_desired,
  46                                    struct ldb_dn *name_dn, const char *name,
  47                                    const char *domain_filter, const char *result_filter,
  48                                    struct drsuapi_DsNameInfo1 *info1, int scope, struct ldb_dn *search_dn);
  49 static WERROR DsCrackNameOneSyntactical(TALLOC_CTX *mem_ctx,
  50                                         enum drsuapi_DsNameFormat format_offered,
  51                                         enum drsuapi_DsNameFormat format_desired,
  52                                         struct ldb_dn *name_dn, const char *name,
  53                                         struct drsuapi_DsNameInfo1 *info1);
  54
  55 static WERROR dns_domain_from_principal(TALLOC_CTX *mem_ctx, struct smb_krb5_context *smb_krb5_context,
  56                                         const char *name,
  57                                         struct drsuapi_DsNameInfo1 *info1)
  58 {
  59         krb5_error_code ret;
  60         krb5_principal principal;
  61         /* perhaps it's a principal with a realm, so return the right 'domain only' response */
  62         ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
  63                                     KRB5_PRINCIPAL_PARSE_REQUIRE_REALM, &principal);
  64         if (ret) {
  65                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
  66                 return WERR_OK;
  67         }
  68
  69         info1->dns_domain_name = smb_krb5_principal_get_realm(
  70                 mem_ctx, smb_krb5_context->krb5_context, principal);
  71         krb5_free_principal(smb_krb5_context->krb5_context, principal);
  72
  73         W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
  74
  75         info1->status = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
  76         return WERR_OK;
  77 }
  78
  79 static enum drsuapi_DsNameStatus LDB_lookup_spn_alias(struct ldb_context *ldb_ctx,
  80                                                       TALLOC_CTX *mem_ctx,
  81                                                       const char *alias_from,
  82                                                       char **alias_to)
  83 {
  84         /*
  85          * Some of the logic of this function is mirrored in find_spn_alias()
  86          * in source4/dsdb.samdb/ldb_modules/samldb.c. If you change this to
  87          * not return the first matched alias, you will need to rethink that
  88          * function too.
  89          */
  90         unsigned int i;
  91         int ret;
  92         struct ldb_result *res;
  93         struct ldb_message_element *spnmappings;
  94         TALLOC_CTX *tmp_ctx;
  95         struct ldb_dn *service_dn;
  96         char *service_dn_str;
  97
  98         const char *directory_attrs[] = {
  99                 "sPNMappings",
 100                 NULL
 101         };
 102
 103         tmp_ctx = talloc_new(mem_ctx);
 104         if (!tmp_ctx) {
 105                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 106         }
 107
 108         service_dn = ldb_dn_new(tmp_ctx, ldb_ctx, "CN=Directory Service,CN=Windows NT,CN=Services");
 109         if ( ! ldb_dn_add_base(service_dn, ldb_get_config_basedn(ldb_ctx))) {
 110                 talloc_free(tmp_ctx);
 111                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 112         }
 113         service_dn_str = ldb_dn_alloc_linearized(tmp_ctx, service_dn);
 114         if ( ! service_dn_str) {
 115                 talloc_free(tmp_ctx);
 116                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 117         }
 118
 119         ret = ldb_search(ldb_ctx, tmp_ctx, &res, service_dn, LDB_SCOPE_BASE,
 120                          directory_attrs, "(objectClass=nTDSService)");
 121
 122         if (ret != LDB_SUCCESS && ret != LDB_ERR_NO_SUCH_OBJECT) {
 123                 DEBUG(1, ("ldb_search: dn: %s not found: %s\n", service_dn_str, ldb_errstring(ldb_ctx)));
 124                 talloc_free(tmp_ctx);
 125                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 126         } else if (ret == LDB_ERR_NO_SUCH_OBJECT) {
 127                 DEBUG(1, ("ldb_search: dn: %s not found\n", service_dn_str));
 128                 talloc_free(tmp_ctx);
 129                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 130         } else if (res->count != 1) {
 131                 DEBUG(1, ("ldb_search: dn: %s not found\n", service_dn_str));
 132                 talloc_free(tmp_ctx);
 133                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 134         }
 135
 136         spnmappings = ldb_msg_find_element(res->msgs[0], "sPNMappings");
 137         if (!spnmappings || spnmappings->num_values == 0) {
 138                 DEBUG(1, ("ldb_search: dn: %s no sPNMappings attribute\n", service_dn_str));
 139                 talloc_free(tmp_ctx);
 140                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 141         }
 142
 143         for (i = 0; i < spnmappings->num_values; i++) {
 144                 char *mapping, *p, *str;
 145                 mapping = talloc_strdup(tmp_ctx,
 146                                         (const char *)spnmappings->values[i].data);
 147                 if (!mapping) {
 148                         DEBUG(1, ("LDB_lookup_spn_alias: ldb_search: dn: %s did not have an sPNMapping\n", service_dn_str));
 149                         talloc_free(tmp_ctx);
 150                         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 151                 }
 152
 153                 /* C string manipulation sucks */
 154
 155                 p = strchr(mapping, '=');
 156                 if (!p) {
 157                         DEBUG(1, ("ldb_search: dn: %s sPNMapping malformed: %s\n",
 158                                   service_dn_str, mapping));
 159                         talloc_free(tmp_ctx);
 160                         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 161                 }
 162                 p[0] = '\0';
 163                 p++;
 164                 do {
 165                         str = p;
 166                         p = strchr(p, ',');
 167                         if (p) {
 168                                 p[0] = '\0';
 169                                 p++;
 170                         }
 171                         if (strcasecmp(str, alias_from) == 0) {
 172                                 *alias_to = mapping;
 173                                 talloc_steal(mem_ctx, mapping);
 174                                 talloc_free(tmp_ctx);
 175                                 return DRSUAPI_DS_NAME_STATUS_OK;
 176                         }
 177                 } while (p);
 178         }
 179         DEBUG(4, ("LDB_lookup_spn_alias: no alias for service %s applicable\n", alias_from));
 180         talloc_free(tmp_ctx);
 181         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 182 }
 183
 184 /* When cracking a ServicePrincipalName, many services may be served
 185  * by the host/ servicePrincipalName.  The incoming query is for cifs/
 186  * but we translate it here, and search on host/.  This is done after
 187  * the cifs/ entry has been searched for, making this a fallback */
 188
 189 static WERROR DsCrackNameSPNAlias(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 190                                   struct smb_krb5_context *smb_krb5_context,
 191                                   uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 192                                   enum drsuapi_DsNameFormat format_desired,
 193                                   const char *name, struct drsuapi_DsNameInfo1 *info1)
 194 {
 195         WERROR wret;
 196         krb5_error_code ret;
 197         krb5_principal principal;
 198         const krb5_data *component;
 199         const char *service, *dns_name;
 200         char *new_service;
 201         char *new_princ;
 202         enum drsuapi_DsNameStatus namestatus;
 203
 204         /* parse principal */
 205         ret = krb5_parse_name_flags(smb_krb5_context->krb5_context,
 206                                     name, KRB5_PRINCIPAL_PARSE_NO_REALM, &principal);
 207         if (ret) {
 208                 DEBUG(2, ("Could not parse principal: %s: %s\n",
 209                           name, smb_get_krb5_error_message(smb_krb5_context->krb5_context,
 210                                                            ret, mem_ctx)));
 211                 return WERR_NOT_ENOUGH_MEMORY;
 212         }
 213
 214         /* grab cifs/, http/ etc */
 215
 216         /* This is checked for in callers, but be safe */
 217         if (krb5_princ_size(smb_krb5_context->krb5_context, principal) < 2) {
 218                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 219                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 220                 return WERR_OK;
 221         }
 222         component = krb5_princ_component(smb_krb5_context->krb5_context,
 223                                          principal, 0);
 224         service = (const char *)component->data;
 225         component = krb5_princ_component(smb_krb5_context->krb5_context,
 226                                          principal, 1);
 227         dns_name = (const char *)component->data;
 228
 229         /* MAP it */
 230         namestatus = LDB_lookup_spn_alias(sam_ctx, mem_ctx,
 231                                           service, &new_service);
 232
 233         if (namestatus == DRSUAPI_DS_NAME_STATUS_NOT_FOUND) {
 234                 wret = WERR_OK;
 235                 info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 236                 info1->dns_domain_name  = talloc_strdup(mem_ctx, dns_name);
 237                 if (!info1->dns_domain_name) {
 238                         wret = WERR_NOT_ENOUGH_MEMORY;
 239                 }
 240                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 241                 return wret;
 242         } else if (namestatus != DRSUAPI_DS_NAME_STATUS_OK) {
 243                 info1->status = namestatus;
 244                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 245                 return WERR_OK;
 246         }
 247
 248         /* reform principal */
 249         new_princ = talloc_asprintf(mem_ctx, "%s/%s", new_service, dns_name);
 250         if (!new_princ) {
 251                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 252                 return WERR_NOT_ENOUGH_MEMORY;
 253         }
 254
 255         wret = DsCrackNameOneName(sam_ctx, mem_ctx, format_flags, format_offered, format_desired,
 256                                   new_princ, info1);
 257         talloc_free(new_princ);
 258         if (W_ERROR_IS_OK(wret) && (info1->status == DRSUAPI_DS_NAME_STATUS_NOT_FOUND)) {
 259                 info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 260                 info1->dns_domain_name  = talloc_strdup(mem_ctx, dns_name);
 261                 if (!info1->dns_domain_name) {
 262                         wret = WERR_NOT_ENOUGH_MEMORY;
 263                 }
 264         }
 265         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 266         return wret;
 267 }
 268
 269 /* Subcase of CrackNames, for the userPrincipalName */
 270
 271 static WERROR DsCrackNameUPN(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 272                              struct smb_krb5_context *smb_krb5_context,
 273                              uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 274                              enum drsuapi_DsNameFormat format_desired,
 275                              const char *name, struct drsuapi_DsNameInfo1 *info1)
 276 {
 277         int ldb_ret;
 278         WERROR status;
 279         const char *domain_filter = NULL;
 280         const char *result_filter = NULL;
 281         krb5_error_code ret;
 282         krb5_principal principal;
 283         char *realm;
 284         char *unparsed_name_short;
 285         const char *domain_attrs[] = { NULL };
 286         struct ldb_result *domain_res = NULL;
 287
 288         /* Prevent recursion */
 289         if (!name) {
 290                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 291                 return WERR_OK;
 292         }
 293
 294         ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
 295                                     KRB5_PRINCIPAL_PARSE_REQUIRE_REALM, &principal);
 296         if (ret) {
 297                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 298                 return WERR_OK;
 299         }
 300
 301         realm = smb_krb5_principal_get_realm(
 302                 mem_ctx, smb_krb5_context->krb5_context, principal);
 303
 304         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 305                              samdb_partitions_dn(sam_ctx, mem_ctx),
 306                              LDB_SCOPE_ONELEVEL,
 307                              domain_attrs,
 308                              "(&(objectClass=crossRef)(|(dnsRoot=%s)(netbiosName=%s))(systemFlags:%s:=%u))",
 309                              ldb_binary_encode_string(mem_ctx, realm),
 310                              ldb_binary_encode_string(mem_ctx, realm),
 311                              LDB_OID_COMPARATOR_AND,
 312                              SYSTEM_FLAG_CR_NTDS_DOMAIN);
 313         TALLOC_FREE(realm);
 314
 315         if (ldb_ret != LDB_SUCCESS) {
 316                 DEBUG(2, ("DsCrackNameUPN domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 317                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 318                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 319                 return WERR_OK;
 320         }
 321
 322         switch (domain_res->count) {
 323         case 1:
 324                 break;
 325         case 0:
 326                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 327                 return dns_domain_from_principal(mem_ctx, smb_krb5_context,
 328                                                  name, info1);
 329         default:
 330                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 331                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 332                 return WERR_OK;
 333         }
 334
 335         /*
 336          * The important thing here is that a samAccountName may have
 337          * a space in it, and this must not be kerberos escaped to
 338          * match this filter, so we specify
 339          * KRB5_PRINCIPAL_UNPARSE_DISPLAY
 340          */
 341         ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
 342                                       KRB5_PRINCIPAL_UNPARSE_NO_REALM |
 343                                       KRB5_PRINCIPAL_UNPARSE_DISPLAY,
 344                                       &unparsed_name_short);
 345         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 346
 347         if (ret) {
 348                 free(unparsed_name_short);
 349                 return WERR_NOT_ENOUGH_MEMORY;
 350         }
 351
 352         /* This may need to be extended for more userPrincipalName variations */
 353         result_filter = talloc_asprintf(mem_ctx, "(&(samAccountName=%s)(objectClass=user))",
 354                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short));
 355
 356         domain_filter = talloc_asprintf(mem_ctx, "(distinguishedName=%s)", ldb_dn_get_linearized(domain_res->msgs[0]->dn));
 357
 358         if (!result_filter || !domain_filter) {
 359                 free(unparsed_name_short);
 360                 return WERR_NOT_ENOUGH_MEMORY;
 361         }
 362         status = DsCrackNameOneFilter(sam_ctx, mem_ctx,
 363                                       smb_krb5_context,
 364                                       format_flags, format_offered, format_desired,
 365                                       NULL, unparsed_name_short, domain_filter, result_filter,
 366                                       info1, LDB_SCOPE_SUBTREE, NULL);
 367         free(unparsed_name_short);
 368
 369         return status;
 370 }
 371
 372 /*
 373  * This function will workout the filtering parameter in order to be able to do
 374  * the adapted search when the incomming format is format_functional.
 375  * This boils down to defining the search_dn (passed as pointer to ldb_dn *) and the
 376  * ldap filter request.
 377  * Main input parameters are:
 378  * * name, which is the portion of the functional name after the
 379  * first '/'.
 380  * * domain_filter, which is a ldap search filter used to find the NC DN given the
 381  * function name to crack.
 382  */
 383 static WERROR get_format_functional_filtering_param(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 384                         char *name, struct drsuapi_DsNameInfo1 *info1,
 385                         struct ldb_dn **psearch_dn, const char *domain_filter, const char **presult_filter)
 386 {
 387         struct ldb_result *domain_res = NULL;
 388         const char * const domain_attrs[] = {"ncName", NULL};
 389         struct ldb_dn *partitions_basedn = samdb_partitions_dn(sam_ctx, mem_ctx);
 390         int ldb_ret;
 391         char *account,  *s, *result_filter = NULL;
 392         struct ldb_dn *search_dn = NULL;
 393
 394         *psearch_dn = NULL;
 395         *presult_filter = NULL;
 396
 397         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 398                                 partitions_basedn,
 399                                 LDB_SCOPE_ONELEVEL,
 400                                 domain_attrs,
 401                                 "%s", domain_filter);
 402
 403         if (ldb_ret != LDB_SUCCESS) {
 404                 DEBUG(2, ("DsCrackNameOne domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 405                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 406                 return WERR_FOOBAR;
 407         }
 408
 409         if (domain_res->count == 1) {
 410                 struct ldb_dn *tmp_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
 411                 const char * const name_attrs[] = {"name", NULL};
 412
 413                 account = name;
 414                 s = strchr(account, '/');
 415                 talloc_free(domain_res);
 416                 while(s) {
 417                         s[0] = '\0';
 418                         s++;
 419
 420                         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 421                                                 tmp_dn,
 422                                                 LDB_SCOPE_ONELEVEL,
 423                                                 name_attrs,
 424                                                 "name=%s", account);
 425
 426                         if (ldb_ret != LDB_SUCCESS) {
 427                                 DEBUG(2, ("DsCrackNameOne domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 428                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 429                                 return WERR_OK;
 430                         }
 431                         talloc_free(tmp_dn);
 432                         switch (domain_res->count) {
 433                         case 1:
 434                                 break;
 435                         case 0:
 436                                 talloc_free(domain_res);
 437                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 438                                 return WERR_OK;
 439                         default:
 440                                 talloc_free(domain_res);
 441                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 442                                 return WERR_OK;
 443                         }
 444
 445                         tmp_dn = talloc_steal(mem_ctx, domain_res->msgs[0]->dn);
 446                         talloc_free(domain_res);
 447                         search_dn = tmp_dn;
 448                         account = s;
 449                         s = strchr(account, '/');
 450                 }
 451                 account = ldb_binary_encode_string(mem_ctx, account);
 452                 W_ERROR_HAVE_NO_MEMORY(account);
 453                 result_filter = talloc_asprintf(mem_ctx, "(name=%s)",
 454                                                 account);
 455                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 456         }
 457         *psearch_dn = search_dn;
 458         *presult_filter = result_filter;
 459         return WERR_OK;
 460 }
 461
 462 /* Crack a single 'name', from format_offered into format_desired, returning the result in info1 */
 463
 464 WERROR DsCrackNameOneName(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 465                           uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 466                           enum drsuapi_DsNameFormat format_desired,
 467                           const char *name, struct drsuapi_DsNameInfo1 *info1)
 468 {
 469         krb5_error_code ret;
 470         const char *domain_filter = NULL;
 471         const char *result_filter = NULL;
 472         struct ldb_dn *name_dn = NULL;
 473         struct ldb_dn *search_dn = NULL;
 474
 475         struct smb_krb5_context *smb_krb5_context = NULL;
 476         int scope = LDB_SCOPE_SUBTREE;
 477
 478         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 479         info1->dns_domain_name = NULL;
 480         info1->result_name = NULL;
 481
 482         if (!name) {
 483                 return WERR_INVALID_PARAMETER;
 484         }
 485
 486         /* TODO: - fill the correct names in all cases!
 487          *       - handle format_flags
 488          */
 489         if (format_desired == DRSUAPI_DS_NAME_FORMAT_UNKNOWN) {
 490                 return WERR_OK;
 491         }
 492         /* here we need to set the domain_filter and/or the result_filter */
 493         switch (format_offered) {
 494         case DRSUAPI_DS_NAME_FORMAT_UNKNOWN:
 495         {
 496                 unsigned int i;
 497                 enum drsuapi_DsNameFormat formats[] = {
 498                         DRSUAPI_DS_NAME_FORMAT_FQDN_1779, DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
 499                         DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT, DRSUAPI_DS_NAME_FORMAT_CANONICAL,
 500                         DRSUAPI_DS_NAME_FORMAT_GUID, DRSUAPI_DS_NAME_FORMAT_DISPLAY,
 501                         DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
 502                         DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY,
 503                         DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX
 504                 };
 505                 WERROR werr;
 506                 for (i=0; i < ARRAY_SIZE(formats); i++) {
 507                         werr = DsCrackNameOneName(sam_ctx, mem_ctx, format_flags, formats[i], format_desired, name, info1);
 508                         if (!W_ERROR_IS_OK(werr)) {
 509                                 return werr;
 510                         }
 511                         if (info1->status != DRSUAPI_DS_NAME_STATUS_NOT_FOUND &&
 512                             (formats[i] != DRSUAPI_DS_NAME_FORMAT_CANONICAL ||
 513                              info1->status != DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR))
 514                         {
 515                                 return werr;
 516                         }
 517                 }
 518                 return werr;
 519         }
 520
 521         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 522         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 523         {
 524                 char *str, *s, *account;
 525                 scope = LDB_SCOPE_ONELEVEL;
 526
 527                 if (strlen(name) == 0) {
 528                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 529                         return WERR_OK;
 530                 }
 531
 532                 str = talloc_strdup(mem_ctx, name);
 533                 W_ERROR_HAVE_NO_MEMORY(str);
 534
 535                 if (format_offered == DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX) {
 536                         /* Look backwards for the \n, and replace it with / */
 537                         s = strrchr(str, '\n');
 538                         if (!s) {
 539                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 540                                 return WERR_OK;
 541                         }
 542                         s[0] = '/';
 543                 }
 544
 545                 s = strchr(str, '/');
 546                 if (!s) {
 547                         /* there must be at least one / */
 548                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 549                         return WERR_OK;
 550                 }
 551
 552                 s[0] = '\0';
 553                 s++;
 554
 555                 domain_filter = talloc_asprintf(mem_ctx, "(&(objectClass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))",
 556                                                 ldb_binary_encode_string(mem_ctx, str),
 557                                                 LDB_OID_COMPARATOR_AND,
 558                                                 SYSTEM_FLAG_CR_NTDS_DOMAIN);
 559                 W_ERROR_HAVE_NO_MEMORY(domain_filter);
 560
 561                 /* There may not be anything after the domain component (search for the domain itself) */
 562                 account = s;
 563                 if (account && *account) {
 564                         WERROR werr = get_format_functional_filtering_param(sam_ctx,
 565                                                                                 mem_ctx,
 566                                                                                 account,
 567                                                                                 info1,
 568                                                                                 &search_dn,
 569                                                                                 domain_filter,
 570                                                                                 &result_filter);
 571                         if (!W_ERROR_IS_OK(werr)) {
 572                                 return werr;
 573                         }
 574                         if (info1->status != DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR)
 575                                 return WERR_OK;
 576                 }
 577                 break;
 578         }
 579         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
 580                 char *p;
 581                 char *domain;
 582                 const char *account = NULL;
 583
 584                 domain = talloc_strdup(mem_ctx, name);
 585                 W_ERROR_HAVE_NO_MEMORY(domain);
 586
 587                 p = strchr(domain, '\\');
 588                 if (!p) {
 589                         /* invalid input format */
 590                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 591                         return WERR_OK;
 592                 }
 593                 p[0] = '\0';
 594
 595                 if (p[1]) {
 596                         account = &p[1];
 597                 }
 598
 599                 domain_filter = talloc_asprintf(mem_ctx,
 600                                                 "(&(objectClass=crossRef)(netbiosName=%s)(systemFlags:%s:=%u))",
 601                                                 ldb_binary_encode_string(mem_ctx, domain),
 602                                                 LDB_OID_COMPARATOR_AND,
 603                                                 SYSTEM_FLAG_CR_NTDS_DOMAIN);
 604                 W_ERROR_HAVE_NO_MEMORY(domain_filter);
 605                 if (account) {
 606                         result_filter = talloc_asprintf(mem_ctx, "(sAMAccountName=%s)",
 607                                                         ldb_binary_encode_string(mem_ctx, account));
 608                         W_ERROR_HAVE_NO_MEMORY(result_filter);
 609                 }
 610
 611                 talloc_free(domain);
 612                 break;
 613         }
 614
 615                 /* A LDAP DN as a string */
 616         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
 617                 domain_filter = NULL;
 618                 name_dn = ldb_dn_new(mem_ctx, sam_ctx, name);
 619                 if (! ldb_dn_validate(name_dn)) {
 620                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 621                         return WERR_OK;
 622                 }
 623                 break;
 624         }
 625
 626                 /* A GUID as a string */
 627         case DRSUAPI_DS_NAME_FORMAT_GUID: {
 628                 struct GUID guid;
 629                 char *ldap_guid;
 630                 NTSTATUS nt_status;
 631                 domain_filter = NULL;
 632
 633                 nt_status = GUID_from_string(name, &guid);
 634                 if (!NT_STATUS_IS_OK(nt_status)) {
 635                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 636                         return WERR_OK;
 637                 }
 638
 639                 ldap_guid = ldap_encode_ndr_GUID(mem_ctx, &guid);
 640                 if (!ldap_guid) {
 641                         return WERR_NOT_ENOUGH_MEMORY;
 642                 }
 643                 result_filter = talloc_asprintf(mem_ctx, "(objectGUID=%s)",
 644                                                 ldap_guid);
 645                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 646                 break;
 647         }
 648         case DRSUAPI_DS_NAME_FORMAT_DISPLAY: {
 649                 domain_filter = NULL;
 650
 651                 result_filter = talloc_asprintf(mem_ctx, "(|(displayName=%s)(samAccountName=%s))",
 652                                                 ldb_binary_encode_string(mem_ctx, name),
 653                                                 ldb_binary_encode_string(mem_ctx, name));
 654                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 655                 break;
 656         }
 657
 658                 /* A S-1234-5678 style string */
 659         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
 660                 struct dom_sid *sid = dom_sid_parse_talloc(mem_ctx, name);
 661                 char *ldap_sid;
 662
 663                 domain_filter = NULL;
 664                 if (!sid) {
 665                         info1->dns_domain_name = NULL;
 666                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 667                         return WERR_OK;
 668                 }
 669                 ldap_sid = ldap_encode_ndr_dom_sid(mem_ctx,
 670                                                    sid);
 671                 if (!ldap_sid) {
 672                         return WERR_NOT_ENOUGH_MEMORY;
 673                 }
 674                 result_filter = talloc_asprintf(mem_ctx, "(objectSid=%s)",
 675                                                 ldap_sid);
 676                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 677                 break;
 678         }
 679         case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL: {
 680                 krb5_principal principal;
 681                 char *unparsed_name;
 682
 683                 ret = smb_krb5_init_context(mem_ctx,
 684                                             (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
 685                                             &smb_krb5_context);
 686
 687                 if (ret) {
 688                         return WERR_NOT_ENOUGH_MEMORY;
 689                 }
 690
 691                 /* Ensure we reject complete junk first */
 692                 ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 693                 if (ret) {
 694                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 695                         return WERR_OK;
 696                 }
 697
 698                 domain_filter = NULL;
 699
 700                 /*
 701                  * By getting the unparsed name here, we ensure the
 702                  * escaping is removed correctly (and trust the client
 703                  * less).  The important thing here is that a
 704                  * userPrincipalName may have a space in it, and this
 705                  * must not be kerberos escaped to match this filter,
 706                  * so we specify KRB5_PRINCIPAL_UNPARSE_DISPLAY
 707                  */
 708                 ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context,
 709                                               principal,
 710                                               KRB5_PRINCIPAL_UNPARSE_DISPLAY,
 711                                               &unparsed_name);
 712                 if (ret) {
 713                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 714                         return WERR_NOT_ENOUGH_MEMORY;
 715                 }
 716
 717                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 718
 719                 /* The ldb_binary_encode_string() here avoid LDAP filter injection attacks */
 720                 result_filter = talloc_asprintf(mem_ctx, "(&(userPrincipalName=%s)(objectClass=user))",
 721                                                 ldb_binary_encode_string(mem_ctx, unparsed_name));
 722
 723                 free(unparsed_name);
 724                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 725                 break;
 726         }
 727         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
 728                 krb5_principal principal;
 729                 char *unparsed_name_short;
 730                 const krb5_data *component;
 731                 char *service;
 732
 733                 ret = smb_krb5_init_context(mem_ctx,
 734                                             (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
 735                                             &smb_krb5_context);
 736
 737                 if (ret) {
 738                         return WERR_NOT_ENOUGH_MEMORY;
 739                 }
 740
 741                 ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 742                 if (ret == 0 &&
 743                     krb5_princ_size(smb_krb5_context->krb5_context,
 744                                                         principal) < 2) {
 745                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 746                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 747                         return WERR_OK;
 748                 } else if (ret == 0) {
 749                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 750                 }
 751                 ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
 752                                             KRB5_PRINCIPAL_PARSE_NO_REALM, &principal);
 753                 if (ret) {
 754                         return dns_domain_from_principal(mem_ctx, smb_krb5_context,
 755                                                          name, info1);
 756                 }
 757
 758                 domain_filter = NULL;
 759
 760                 ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
 761                                               KRB5_PRINCIPAL_UNPARSE_NO_REALM, &unparsed_name_short);
 762                 if (ret) {
 763                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 764                         return WERR_NOT_ENOUGH_MEMORY;
 765                 }
 766
 767                 component = krb5_princ_component(smb_krb5_context->krb5_context,
 768                                                  principal, 0);
 769                 service = (char *)component->data;
 770                 if ((krb5_princ_size(smb_krb5_context->krb5_context,
 771                                                         principal) == 2) &&
 772                         (strcasecmp(service, "host") == 0)) {
 773                         /* the 'cn' attribute is just the leading part of the name */
 774                         char *computer_name;
 775                         component = krb5_princ_component(
 776                                                 smb_krb5_context->krb5_context,
 777                                                 principal, 1);
 778                         computer_name = talloc_strndup(mem_ctx, (char *)component->data,
 779                                                         strcspn((char *)component->data, "."));
 780                         if (computer_name == NULL) {
 781                                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 782                                 free(unparsed_name_short);
 783                                 return WERR_NOT_ENOUGH_MEMORY;
 784                         }
 785
 786                         result_filter = talloc_asprintf(mem_ctx, "(|(&(servicePrincipalName=%s)(objectClass=user))(&(cn=%s)(objectClass=computer)))",
 787                                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short),
 788                                                         ldb_binary_encode_string(mem_ctx, computer_name));
 789                 } else {
 790                         result_filter = talloc_asprintf(mem_ctx, "(&(servicePrincipalName=%s)(objectClass=user))",
 791                                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short));
 792                 }
 793                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 794                 free(unparsed_name_short);
 795                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 796
 797                 break;
 798         }
 799         default: {
 800                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 801                 return WERR_OK;
 802         }
 803         }
 804
 805         if (format_flags & DRSUAPI_DS_NAME_FLAG_SYNTACTICAL_ONLY) {
 806                 return DsCrackNameOneSyntactical(mem_ctx, format_offered, format_desired,
 807                                                  name_dn, name, info1);
 808         }
 809
 810         return DsCrackNameOneFilter(sam_ctx, mem_ctx,
 811                                     smb_krb5_context,
 812                                     format_flags, format_offered, format_desired,
 813                                     name_dn, name,
 814                                     domain_filter, result_filter,
 815                                     info1, scope, search_dn);
 816 }
 817
 818 /* Subcase of CrackNames.  It is possible to translate a LDAP-style DN
 819  * (FQDN_1779) into a canoical name without actually searching the
 820  * database */
 821
 822 static WERROR DsCrackNameOneSyntactical(TALLOC_CTX *mem_ctx,
 823                                         enum drsuapi_DsNameFormat format_offered,
 824                                         enum drsuapi_DsNameFormat format_desired,
 825                                         struct ldb_dn *name_dn, const char *name,
 826                                         struct drsuapi_DsNameInfo1 *info1)
 827 {
 828         char *cracked;
 829         if (format_offered != DRSUAPI_DS_NAME_FORMAT_FQDN_1779) {
 830                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_SYNTACTICAL_MAPPING;
 831                 return WERR_OK;
 832         }
 833
 834         switch (format_desired) {
 835         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 836                 cracked = ldb_dn_canonical_string(mem_ctx, name_dn);
 837                 break;
 838         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 839                 cracked = ldb_dn_canonical_ex_string(mem_ctx, name_dn);
 840                 break;
 841         default:
 842                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_SYNTACTICAL_MAPPING;
 843                 return WERR_OK;
 844         }
 845         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
 846         info1->result_name      = cracked;
 847         if (!cracked) {
 848                 return WERR_NOT_ENOUGH_MEMORY;
 849         }
 850
 851         return WERR_OK;
 852 }
 853
 854 /* Given a filter for the domain, and one for the result, perform the
 855  * ldb search. The format offered and desired flags change the
 856  * behaviours, including what attributes to return.
 857  *
 858  * The smb_krb5_context is required because we use the krb5 libs for principal parsing
 859  */
 860
 861 static WERROR DsCrackNameOneFilter(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 862                                    struct smb_krb5_context *smb_krb5_context,
 863                                    uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 864                                    enum drsuapi_DsNameFormat format_desired,
 865                                    struct ldb_dn *name_dn, const char *name,
 866                                    const char *domain_filter, const char *result_filter,
 867                                    struct drsuapi_DsNameInfo1 *info1,
 868                                    int scope, struct ldb_dn *search_dn)
 869 {
 870         int ldb_ret;
 871         struct ldb_result *domain_res = NULL;
 872         const char * const *domain_attrs;
 873         const char * const *result_attrs;
 874         struct ldb_message **result_res = NULL;
 875         struct ldb_message *result = NULL;
 876         int i;
 877         char *p;
 878         struct ldb_dn *partitions_basedn = samdb_partitions_dn(sam_ctx, mem_ctx);
 879
 880         const char * const _domain_attrs_1779[] = { "ncName", "dnsRoot", NULL};
 881         const char * const _result_attrs_null[] = { NULL };
 882
 883         const char * const _domain_attrs_canonical[] = { "ncName", "dnsRoot", NULL};
 884         const char * const _result_attrs_canonical[] = { "canonicalName", NULL };
 885
 886         const char * const _domain_attrs_nt4[] = { "ncName", "dnsRoot", "nETBIOSName", NULL};
 887         const char * const _result_attrs_nt4[] = { "sAMAccountName", "objectSid", "objectClass", NULL};
 888
 889         const char * const _domain_attrs_guid[] = { "ncName", "dnsRoot", NULL};
 890         const char * const _result_attrs_guid[] = { "objectGUID", NULL};
 891
 892         const char * const _domain_attrs_upn[] = { "ncName", "dnsRoot", NULL};
 893         const char * const _result_attrs_upn[] = { "userPrincipalName", NULL};
 894
 895         const char * const _domain_attrs_spn[] = { "ncName", "dnsRoot", NULL};
 896         const char * const _result_attrs_spn[] = { "servicePrincipalName", NULL};
 897
 898         const char * const _domain_attrs_display[] = { "ncName", "dnsRoot", NULL};
 899         const char * const _result_attrs_display[] = { "displayName", "samAccountName", NULL};
 900
 901         const char * const _domain_attrs_sid[] = { "ncName", "dnsRoot", NULL};
 902         const char * const _result_attrs_sid[] = { "objectSid", NULL};
 903
 904         const char * const _domain_attrs_none[] = { "ncName", "dnsRoot" , NULL};
 905         const char * const _result_attrs_none[] = { NULL};
 906
 907         /* here we need to set the attrs lists for domain and result lookups */
 908         switch (format_desired) {
 909         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779:
 910         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 911                 domain_attrs = _domain_attrs_1779;
 912                 result_attrs = _result_attrs_null;
 913                 break;
 914         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 915                 domain_attrs = _domain_attrs_canonical;
 916                 result_attrs = _result_attrs_canonical;
 917                 break;
 918         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT:
 919                 domain_attrs = _domain_attrs_nt4;
 920                 result_attrs = _result_attrs_nt4;
 921                 break;
 922         case DRSUAPI_DS_NAME_FORMAT_GUID:
 923                 domain_attrs = _domain_attrs_guid;
 924                 result_attrs = _result_attrs_guid;
 925                 break;
 926         case DRSUAPI_DS_NAME_FORMAT_DISPLAY:
 927                 domain_attrs = _domain_attrs_display;
 928                 result_attrs = _result_attrs_display;
 929                 break;
 930         case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL:
 931                 domain_attrs = _domain_attrs_upn;
 932                 result_attrs = _result_attrs_upn;
 933                 break;
 934         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL:
 935                 domain_attrs = _domain_attrs_spn;
 936                 result_attrs = _result_attrs_spn;
 937                 break;
 938         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY:
 939                 domain_attrs = _domain_attrs_sid;
 940                 result_attrs = _result_attrs_sid;
 941                 break;
 942         default:
 943                 domain_attrs = _domain_attrs_none;
 944                 result_attrs = _result_attrs_none;
 945                 break;
 946         }
 947
 948         if (domain_filter) {
 949                 /* if we have a domain_filter look it up and set the result_basedn and the dns_domain_name */
 950                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 951                                              partitions_basedn,
 952                                              LDB_SCOPE_ONELEVEL,
 953                                              domain_attrs,
 954                                              "%s", domain_filter);
 955
 956                 if (ldb_ret != LDB_SUCCESS) {
 957                         DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 958                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 959                         return WERR_OK;
 960                 }
 961
 962                 switch (domain_res->count) {
 963                 case 1:
 964                         break;
 965                 case 0:
 966                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 967                         return WERR_OK;
 968                 default:
 969                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 970                         return WERR_OK;
 971                 }
 972
 973                 info1->dns_domain_name  = ldb_msg_find_attr_as_string(domain_res->msgs[0], "dnsRoot", NULL);
 974                 W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
 975                 info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 976         } else {
 977                 info1->dns_domain_name  = NULL;
 978                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 979         }
 980
 981         if (result_filter) {
 982                 int ret;
 983                 struct ldb_result *res;
 984                 uint32_t dsdb_flags = 0;
 985                 struct ldb_dn *real_search_dn = NULL;
 986                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 987
 988                 /*
 989                  * From 4.1.4.2.11 of MS-DRSR
 990                  * if DS_NAME_FLAG_GCVERIFY in flags then
 991                  * rt := select all O from all
 992                  * where attrValue in GetAttrVals(O, att, false)
 993                  * else
 994                  * rt := select all O from subtree DefaultNC()
 995                  * where attrValue in GetAttrVals(O, att, false)
 996                  * endif
 997                  * return rt
 998                  */
 999                 if (format_flags & DRSUAPI_DS_NAME_FLAG_GCVERIFY ||
1000                     format_offered == DRSUAPI_DS_NAME_FORMAT_GUID)
1001                 {
1002                         dsdb_flags = DSDB_SEARCH_SEARCH_ALL_PARTITIONS;
1003                 } else if (domain_res) {
1004                         if (!search_dn) {
1005                                 struct ldb_dn *tmp_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
1006                                 real_search_dn = tmp_dn;
1007                         } else {
1008                                 real_search_dn = search_dn;
1009                         }
1010                 } else {
1011                         real_search_dn = ldb_get_default_basedn(sam_ctx);
1012                 }
1013                 if (format_offered == DRSUAPI_DS_NAME_FORMAT_GUID){
1014                          dsdb_flags |= DSDB_SEARCH_SHOW_RECYCLED;
1015                 }
1016                 /* search with the 'phantom root' flag */
1017                 ret = dsdb_search(sam_ctx, mem_ctx, &res,
1018                                   real_search_dn,
1019                                   scope,
1020                                   result_attrs,
1021                                   dsdb_flags,
1022                                   "%s", result_filter);
1023                 if (ret != LDB_SUCCESS) {
1024                         DEBUG(2, ("DsCrackNameOneFilter search from '%s' with flags 0x%08x failed: %s\n",
1025                                   ldb_dn_get_linearized(real_search_dn),
1026                                   dsdb_flags,
1027                                   ldb_errstring(sam_ctx)));
1028                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1029                         return WERR_OK;
1030                 }
1031
1032                 ldb_ret = res->count;
1033                 result_res = res->msgs;
1034         } else if (format_offered == DRSUAPI_DS_NAME_FORMAT_FQDN_1779) {
1035                 ldb_ret = gendb_search_dn(sam_ctx, mem_ctx, name_dn, &result_res,
1036                                           result_attrs);
1037         } else if (domain_res) {
1038                 name_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
1039                 ldb_ret = gendb_search_dn(sam_ctx, mem_ctx, name_dn, &result_res,
1040                                           result_attrs);
1041         } else {
1042                 /* Can't happen */
1043                 DEBUG(0, ("LOGIC ERROR: DsCrackNameOneFilter domain ref search not available: This can't happen...\n"));
1044                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1045                 return WERR_OK;
1046         }
1047
1048         switch (ldb_ret) {
1049         case 1:
1050                 result = result_res[0];
1051                 break;
1052         case 0:
1053                 switch (format_offered) {
1054                 case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL:
1055                         return DsCrackNameSPNAlias(sam_ctx, mem_ctx,
1056                                                    smb_krb5_context,
1057                                                    format_flags, format_offered, format_desired,
1058                                                    name, info1);
1059
1060                 case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL:
1061                         return DsCrackNameUPN(sam_ctx, mem_ctx, smb_krb5_context,
1062                                               format_flags, format_offered, format_desired,
1063                                               name, info1);
1064                 default:
1065                         break;
1066                 }
1067                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1068                 return WERR_OK;
1069         case -1:
1070                 DEBUG(2, ("DsCrackNameOneFilter result search failed: %s\n", ldb_errstring(sam_ctx)));
1071                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1072                 return WERR_OK;
1073         default:
1074                 switch (format_offered) {
1075                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
1076                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
1077                 {
1078                         const char *canonical_name = NULL; /* Not required, but we get warnings... */
1079                         /* We may need to manually filter further */
1080                         for (i = 0; i < ldb_ret; i++) {
1081                                 switch (format_offered) {
1082                                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
1083                                         canonical_name = ldb_dn_canonical_string(mem_ctx, result_res[i]->dn);
1084                                         break;
1085                                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
1086                                         canonical_name = ldb_dn_canonical_ex_string(mem_ctx, result_res[i]->dn);
1087                                         break;
1088                                 default:
1089                                         break;
1090                                 }
1091                                 if (strcasecmp_m(canonical_name, name) == 0) {
1092                                         result = result_res[i];
1093                                         break;
1094                                 }
1095                         }
1096                         if (!result) {
1097                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1098                                 return WERR_OK;
1099                         }
1100                 }
1101                 FALL_THROUGH;
1102                 default:
1103                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1104                         return WERR_OK;
1105                 }
1106         }
1107
1108         info1->dns_domain_name = ldb_dn_canonical_string(mem_ctx, result->dn);
1109         W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
1110         p = strchr(info1->dns_domain_name, '/');
1111         if (p) {
1112                 p[0] = '\0';
1113         }
1114
1115         /* here we can use result and domain_res[0] */
1116         switch (format_desired) {
1117         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
1118                 info1->result_name      = ldb_dn_alloc_linearized(mem_ctx, result->dn);
1119                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1120
1121                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1122                 return WERR_OK;
1123         }
1124         case DRSUAPI_DS_NAME_FORMAT_CANONICAL: {
1125                 info1->result_name      = ldb_msg_find_attr_as_string(result, "canonicalName", NULL);
1126                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1127                 return WERR_OK;
1128         }
1129         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX: {
1130                 /* Not in the virtual ldb attribute */
1131                 return DsCrackNameOneSyntactical(mem_ctx,
1132                                                  DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1133                                                  DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX,
1134                                                  result->dn, name, info1);
1135         }
1136         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
1137
1138                 const struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, result, "objectSid");
1139                 const char *_acc = "", *_dom = "";
1140                 if (sid == NULL) {
1141                         info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1142                         return WERR_OK;
1143                 }
1144
1145                 if (samdb_find_attribute(sam_ctx, result, "objectClass",
1146                                          "domain")) {
1147                         /* This can also find a DomainDNSZones entry,
1148                          * but it won't have the SID we just
1149                          * checked.  */
1150                         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
1151                                                      partitions_basedn,
1152                                                      LDB_SCOPE_ONELEVEL,
1153                                                      domain_attrs,
1154                                                      "(ncName=%s)", ldb_dn_get_linearized(result->dn));
1155
1156                         if (ldb_ret != LDB_SUCCESS) {
1157                                 DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
1158                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1159                                 return WERR_OK;
1160                         }
1161
1162                         switch (domain_res->count) {
1163                         case 1:
1164                                 break;
1165                         case 0:
1166                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1167                                 return WERR_OK;
1168                         default:
1169                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1170                                 return WERR_OK;
1171                         }
1172                         _dom = ldb_msg_find_attr_as_string(domain_res->msgs[0], "nETBIOSName", NULL);
1173                         W_ERROR_HAVE_NO_MEMORY(_dom);
1174                 } else {
1175                         _acc = ldb_msg_find_attr_as_string(result, "sAMAccountName", NULL);
1176                         if (!_acc) {
1177                                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1178                                 return WERR_OK;
1179                         }
1180                         if (dom_sid_in_domain(dom_sid_parse_talloc(mem_ctx, SID_BUILTIN), sid)) {
1181                                 _dom = "BUILTIN";
1182                         } else {
1183                                 const char *attrs[] = { NULL };
1184                                 struct ldb_result *domain_res2;
1185                                 struct dom_sid *dom_sid = dom_sid_dup(mem_ctx, sid);
1186                                 if (!dom_sid) {
1187                                         return WERR_OK;
1188                                 }
1189                                 dom_sid->num_auths--;
1190                                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
1191                                                              NULL,
1192                                                              LDB_SCOPE_BASE,
1193                                                              attrs,
1194                                                              "(&(objectSid=%s)(objectClass=domain))",
1195                                                              ldap_encode_ndr_dom_sid(mem_ctx, dom_sid));
1196
1197                                 if (ldb_ret != LDB_SUCCESS) {
1198                                         DEBUG(2, ("DsCrackNameOneFilter domain search failed: %s\n", ldb_errstring(sam_ctx)));
1199                                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1200                                         return WERR_OK;
1201                                 }
1202
1203                                 switch (domain_res->count) {
1204                                 case 1:
1205                                         break;
1206                                 case 0:
1207                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1208                                         return WERR_OK;
1209                                 default:
1210                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1211                                         return WERR_OK;
1212                                 }
1213
1214                                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res2,
1215                                                              partitions_basedn,
1216                                                              LDB_SCOPE_ONELEVEL,
1217                                                              domain_attrs,
1218                                                              "(ncName=%s)", ldb_dn_get_linearized(domain_res->msgs[0]->dn));
1219
1220                                 if (ldb_ret != LDB_SUCCESS) {
1221                                         DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
1222                                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1223                                         return WERR_OK;
1224                                 }
1225
1226                                 switch (domain_res2->count) {
1227                                 case 1:
1228                                         break;
1229                                 case 0:
1230                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1231                                         return WERR_OK;
1232                                 default:
1233                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1234                                         return WERR_OK;
1235                                 }
1236                                 _dom = ldb_msg_find_attr_as_string(domain_res2->msgs[0], "nETBIOSName", NULL);
1237                                 W_ERROR_HAVE_NO_MEMORY(_dom);
1238                         }
1239                 }
1240
1241                 info1->result_name      = talloc_asprintf(mem_ctx, "%s\\%s", _dom, _acc);
1242                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1243
1244                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1245                 return WERR_OK;
1246         }
1247         case DRSUAPI_DS_NAME_FORMAT_GUID: {
1248                 struct GUID guid;
1249
1250                 guid = samdb_result_guid(result, "objectGUID");
1251
1252                 info1->result_name      = GUID_string2(mem_ctx, &guid);
1253                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1254
1255                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1256                 return WERR_OK;
1257         }
1258         case DRSUAPI_DS_NAME_FORMAT_DISPLAY: {
1259                 info1->result_name      = ldb_msg_find_attr_as_string(result, "displayName", NULL);
1260                 if (!info1->result_name) {
1261                         info1->result_name      = ldb_msg_find_attr_as_string(result, "sAMAccountName", NULL);
1262                 }
1263                 if (!info1->result_name) {
1264                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1265                 } else {
1266                         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
1267                 }
1268                 return WERR_OK;
1269         }
1270         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
1271                 struct ldb_message_element *el
1272                         = ldb_msg_find_element(result,
1273                                                "servicePrincipalName");
1274                 if (el == NULL) {
1275                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1276                         return WERR_OK;
1277                 } else if (el->num_values > 1) {
1278                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1279                         return WERR_OK;
1280                 }
1281
1282                 info1->result_name = ldb_msg_find_attr_as_string(result, "servicePrincipalName", NULL);
1283                 if (!info1->result_name) {
1284                         info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1285                 } else {
1286                         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
1287                 }
1288                 return WERR_OK;
1289         }
1290         case DRSUAPI_DS_NAME_FORMAT_DNS_DOMAIN: {
1291                 info1->dns_domain_name = NULL;
1292                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1293                 return WERR_OK;
1294         }
1295         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
1296                 const struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, result, "objectSid");
1297
1298                 if (sid == NULL) {
1299                         info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1300                         return WERR_OK;
1301                 }
1302
1303                 info1->result_name = dom_sid_string(mem_ctx, sid);
1304                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1305
1306                 info1->status = DRSUAPI_DS_NAME_STATUS_OK;
1307                 return WERR_OK;
1308         }
1309         case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL: {
1310                 info1->result_name = ldb_msg_find_attr_as_string(result, "userPrincipalName", NULL);
1311                 if (!info1->result_name) {
1312                         info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1313                 } else {
1314                         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
1315                 }
1316                 return WERR_OK;
1317         }
1318         default:
1319                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1320                 return WERR_OK;
1321         }
1322 }
1323
1324 /* Given a user Principal Name (such as foo@bar.com),
1325  * return the user and domain DNs.  This is used in the KDC to then
1326  * return the Keys and evaluate policy */
1327
1328 NTSTATUS crack_user_principal_name(struct ldb_context *sam_ctx,
1329                                    TALLOC_CTX *mem_ctx,
1330                                    const char *user_principal_name,
1331                                    struct ldb_dn **user_dn,
1332                                    struct ldb_dn **domain_dn)
1333 {
1334         WERROR werr;
1335         struct drsuapi_DsNameInfo1 info1;
1336         werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1337                                   DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
1338                                   DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1339                                   user_principal_name,
1340                                   &info1);
1341         if (!W_ERROR_IS_OK(werr)) {
1342                 return werror_to_ntstatus(werr);
1343         }
1344         switch (info1.status) {
1345         case DRSUAPI_DS_NAME_STATUS_OK:
1346                 break;
1347         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1348         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1349         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1350                 return NT_STATUS_NO_SUCH_USER;
1351         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1352         default:
1353                 return NT_STATUS_UNSUCCESSFUL;
1354         }
1355
1356         *user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1357
1358         if (domain_dn) {
1359                 werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1360                                           DRSUAPI_DS_NAME_FORMAT_CANONICAL,
1361                                           DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1362                                           talloc_asprintf(mem_ctx, "%s/",
1363                                                           info1.dns_domain_name),
1364                                           &info1);
1365                 if (!W_ERROR_IS_OK(werr)) {
1366                         return werror_to_ntstatus(werr);
1367                 }
1368                 switch (info1.status) {
1369                 case DRSUAPI_DS_NAME_STATUS_OK:
1370                         break;
1371                 case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1372                 case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1373                 case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1374                         return NT_STATUS_NO_SUCH_USER;
1375                 case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1376                 default:
1377                         return NT_STATUS_UNSUCCESSFUL;
1378                 }
1379
1380                 *domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1381         }
1382
1383         return NT_STATUS_OK;
1384 }
1385
1386 /* Given a Service Principal Name (such as host/foo.bar.com@BAR.COM),
1387  * return the user and domain DNs.  This is used in the KDC to then
1388  * return the Keys and evaluate policy */
1389
1390 NTSTATUS crack_service_principal_name(struct ldb_context *sam_ctx,
1391                                       TALLOC_CTX *mem_ctx,
1392                                       const char *service_principal_name,
1393                                       struct ldb_dn **user_dn,
1394                                       struct ldb_dn **domain_dn)
1395 {
1396         WERROR werr;
1397         struct drsuapi_DsNameInfo1 info1;
1398         werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1399                                   DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
1400                                   DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1401                                   service_principal_name,
1402                                   &info1);
1403         if (!W_ERROR_IS_OK(werr)) {
1404                 return werror_to_ntstatus(werr);
1405         }
1406         switch (info1.status) {
1407         case DRSUAPI_DS_NAME_STATUS_OK:
1408                 break;
1409         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1410         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1411         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1412                 return NT_STATUS_NO_SUCH_USER;
1413         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1414         default:
1415                 return NT_STATUS_UNSUCCESSFUL;
1416         }
1417
1418         *user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1419
1420         if (domain_dn) {
1421                 werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1422                                           DRSUAPI_DS_NAME_FORMAT_CANONICAL,
1423                                           DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1424                                           talloc_asprintf(mem_ctx, "%s/",
1425                                                           info1.dns_domain_name),
1426                                           &info1);
1427                 if (!W_ERROR_IS_OK(werr)) {
1428                         return werror_to_ntstatus(werr);
1429                 }
1430                 switch (info1.status) {
1431                 case DRSUAPI_DS_NAME_STATUS_OK:
1432                         break;
1433                 case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1434                 case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1435                 case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1436                         return NT_STATUS_NO_SUCH_USER;
1437                 case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1438                 default:
1439                         return NT_STATUS_UNSUCCESSFUL;
1440                 }
1441
1442                 *domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1443         }
1444
1445         return NT_STATUS_OK;
1446 }
1447
1448 NTSTATUS crack_name_to_nt4_name(TALLOC_CTX *mem_ctx,
1449                                 struct ldb_context *ldb,
1450                                 enum drsuapi_DsNameFormat format_offered,
1451                                 const char *name,
1452                                 const char **nt4_domain, const char **nt4_account)
1453 {
1454         WERROR werr;
1455         struct drsuapi_DsNameInfo1 info1;
1456         char *p;
1457
1458         /* Handle anonymous bind */
1459         if (!name || !*name) {
1460                 *nt4_domain = "";
1461                 *nt4_account = "";
1462                 return NT_STATUS_OK;
1463         }
1464
1465         werr = DsCrackNameOneName(ldb, mem_ctx, 0,
1466                                   format_offered,
1467                                   DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT,
1468                                   name,
1469                                   &info1);
1470         if (!W_ERROR_IS_OK(werr)) {
1471                 return werror_to_ntstatus(werr);
1472         }
1473         switch (info1.status) {
1474         case DRSUAPI_DS_NAME_STATUS_OK:
1475                 break;
1476         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1477         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1478         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1479                 return NT_STATUS_NO_SUCH_USER;
1480         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1481         default:
1482                 return NT_STATUS_UNSUCCESSFUL;
1483         }
1484
1485         *nt4_domain = talloc_strdup(mem_ctx, info1.result_name);
1486         if (*nt4_domain == NULL) {
1487                 return NT_STATUS_NO_MEMORY;
1488         }
1489
1490         p = strchr(*nt4_domain, '\\');
1491         if (!p) {
1492                 return NT_STATUS_INVALID_PARAMETER;
1493         }
1494         p[0] = '\0';
1495
1496         *nt4_account = talloc_strdup(mem_ctx, &p[1]);
1497         if (*nt4_account == NULL) {
1498                 return NT_STATUS_NO_MEMORY;
1499         }
1500
1501         return NT_STATUS_OK;
1502 }
1503
1504 NTSTATUS crack_auto_name_to_nt4_name(TALLOC_CTX *mem_ctx,
1505                                      struct ldb_context *ldb,
1506                                      const char *name,
1507                                      const char **nt4_domain,
1508                                      const char **nt4_account)
1509 {
1510         enum drsuapi_DsNameFormat format_offered = DRSUAPI_DS_NAME_FORMAT_UNKNOWN;
1511
1512         /* Handle anonymous bind */
1513         if (!name || !*name) {
1514                 *nt4_domain = "";
1515                 *nt4_account = "";
1516                 return NT_STATUS_OK;
1517         }
1518
1519         /*
1520          * Here we only consider a subset of the possible name forms listed in
1521          * [MS-ADTS] 5.1.1.1.1, and we don't retry with a different name form if
1522          * the first attempt fails.
1523          */
1524
1525         if (strchr_m(name, '=')) {
1526                 format_offered = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
1527         } else if (strchr_m(name, '@')) {
1528                 format_offered = DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL;
1529         } else if (strchr_m(name, '\\')) {
1530                 format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
1531         } else if (strchr_m(name, '\n')) {
1532                 format_offered = DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX;
1533         } else if (strchr_m(name, '/')) {
1534                 format_offered = DRSUAPI_DS_NAME_FORMAT_CANONICAL;
1535         } else if ((name[0] == 'S' || name[0] == 's') && name[1] == '-') {
1536                 format_offered = DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY;
1537         } else {
1538                 return NT_STATUS_NO_SUCH_USER;
1539         }
1540
1541         return crack_name_to_nt4_name(mem_ctx, ldb, format_offered, name, nt4_domain, nt4_account);
1542 }
1543
1544
1545 WERROR dcesrv_drsuapi_ListRoles(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1546                                 const struct drsuapi_DsNameRequest1 *req1,
1547                                 struct drsuapi_DsNameCtr1 **ctr1)
1548 {
1549         struct drsuapi_DsNameInfo1 *names;
1550         uint32_t i;
1551         uint32_t count = 5;/*number of fsmo role owners we are going to return*/
1552
1553         *ctr1 = talloc(mem_ctx, struct drsuapi_DsNameCtr1);
1554         W_ERROR_HAVE_NO_MEMORY(*ctr1);
1555         names = talloc_array(mem_ctx, struct drsuapi_DsNameInfo1, count);
1556         W_ERROR_HAVE_NO_MEMORY(names);
1557
1558         for (i = 0; i < count; i++) {
1559                 WERROR werr;
1560                 struct ldb_dn *role_owner_dn, *fsmo_role_dn, *server_dn;
1561                 werr = dsdb_get_fsmo_role_info(mem_ctx, sam_ctx, i,
1562                                                &fsmo_role_dn, &role_owner_dn);
1563                 if(!W_ERROR_IS_OK(werr)) {
1564                         return werr;
1565                 }
1566                 server_dn = ldb_dn_copy(mem_ctx, role_owner_dn);
1567                 ldb_dn_remove_child_components(server_dn, 1);
1568                 names[i].status = DRSUAPI_DS_NAME_STATUS_OK;
1569                 names[i].dns_domain_name = samdb_dn_to_dnshostname(sam_ctx, mem_ctx,
1570                                                                    server_dn);
1571                 if(!names[i].dns_domain_name) {
1572                         DEBUG(4, ("list_roles: Failed to find dNSHostName for server %s\n",
1573                                   ldb_dn_get_linearized(server_dn)));
1574                 }
1575                 names[i].result_name = talloc_strdup(mem_ctx, ldb_dn_get_linearized(role_owner_dn));
1576         }
1577
1578         (*ctr1)->count = count;
1579         (*ctr1)->array = names;
1580
1581         return WERR_OK;
1582 }
1583
1584 WERROR dcesrv_drsuapi_CrackNamesByNameFormat(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1585                                              const struct drsuapi_DsNameRequest1 *req1,
1586                                              struct drsuapi_DsNameCtr1 **ctr1)
1587 {
1588         struct drsuapi_DsNameInfo1 *names;
1589         uint32_t i, count;
1590         WERROR status;
1591
1592         *ctr1 = talloc_zero(mem_ctx, struct drsuapi_DsNameCtr1);
1593         W_ERROR_HAVE_NO_MEMORY(*ctr1);
1594
1595         count = req1->count;
1596         names = talloc_array(mem_ctx, struct drsuapi_DsNameInfo1, count);
1597         W_ERROR_HAVE_NO_MEMORY(names);
1598
1599         for (i=0; i < count; i++) {
1600                 status = DsCrackNameOneName(sam_ctx, mem_ctx,
1601                                             req1->format_flags,
1602                                             req1->format_offered,
1603                                             req1->format_desired,
1604                                             req1->names[i].str,
1605                                             &names[i]);
1606                 if (!W_ERROR_IS_OK(status)) {
1607                         return status;
1608                 }
1609         }
1610
1611         (*ctr1)->count = count;
1612         (*ctr1)->array = names;
1613
1614         return WERR_OK;
1615 }
1616
1617 WERROR dcesrv_drsuapi_ListInfoServer(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1618                                      const struct drsuapi_DsNameRequest1 *req1,
1619                                      struct drsuapi_DsNameCtr1 **_ctr1)
1620 {
1621         struct drsuapi_DsNameInfo1 *names;
1622         struct ldb_result *res;
1623         struct ldb_dn *server_dn, *dn;
1624         struct drsuapi_DsNameCtr1 *ctr1;
1625         int ret, i;
1626         const char *str;
1627         const char *attrs[] = {
1628                 "dn",
1629                 "dNSHostName",
1630                 "serverReference",
1631                 NULL
1632         };
1633
1634         *_ctr1 = NULL;
1635
1636         ctr1 = talloc_zero(mem_ctx, struct drsuapi_DsNameCtr1);
1637         W_ERROR_HAVE_NO_MEMORY(ctr1);
1638
1639         /*
1640          * No magic value here, we have to return 3 entries according to the
1641          * MS-DRSR.pdf
1642          */
1643         ctr1->count = 3;
1644         names = talloc_zero_array(ctr1, struct drsuapi_DsNameInfo1,
1645                                   ctr1->count);
1646         W_ERROR_HAVE_NO_MEMORY(names);
1647         ctr1->array = names;
1648
1649         for (i=0; i < ctr1->count; i++) {
1650                 names[i].status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1651         }
1652         *_ctr1 = ctr1;
1653
1654         if (req1->count != 1) {
1655                 DEBUG(1, ("Expected a count of 1 for the ListInfoServer crackname \n"));
1656                 return WERR_OK;
1657         }
1658
1659         if (req1->names[0].str == NULL) {
1660                 return WERR_OK;
1661         }
1662
1663         server_dn = ldb_dn_new(mem_ctx, sam_ctx, req1->names[0].str);
1664         W_ERROR_HAVE_NO_MEMORY(server_dn);
1665
1666         ret = ldb_search(sam_ctx, mem_ctx, &res, server_dn, LDB_SCOPE_ONELEVEL,
1667                          NULL, "(objectClass=nTDSDSA)");
1668
1669         if (ret != LDB_SUCCESS) {
1670                 DEBUG(1, ("Search for objectClass=nTDSDSA "
1671                           "returned less than 1 objects\n"));
1672                 return WERR_OK;
1673         }
1674
1675         if (res->count != 1) {
1676                 DEBUG(1, ("Search for objectClass=nTDSDSA "
1677                           "returned less than 1 objects\n"));
1678                 return WERR_OK;
1679         }
1680
1681         if (res->msgs[0]->dn) {
1682                 names[0].result_name = ldb_dn_alloc_linearized(names, res->msgs[0]->dn);
1683                 W_ERROR_HAVE_NO_MEMORY(names[0].result_name);
1684                 names[0].status = DRSUAPI_DS_NAME_STATUS_OK;
1685         }
1686
1687         talloc_free(res);
1688
1689         ret = ldb_search(sam_ctx, mem_ctx, &res, server_dn, LDB_SCOPE_BASE,
1690                          attrs, "(objectClass=*)");
1691         if (ret != LDB_SUCCESS) {
1692                 DEBUG(1, ("Search for objectClass=* on dn %s"
1693                           "returned %s\n", req1->names[0].str,
1694                           ldb_strerror(ret)));
1695                 return WERR_OK;
1696         }
1697
1698         if (res->count != 1) {
1699                 DEBUG(1, ("Search for objectClass=* on dn %s"
1700                           "returned less than 1 objects\n", req1->names[0].str));
1701                 return WERR_OK;
1702         }
1703
1704         str = ldb_msg_find_attr_as_string(res->msgs[0], "dNSHostName", NULL);
1705         if (str != NULL) {
1706                 names[1].result_name = talloc_strdup(names, str);
1707                 W_ERROR_HAVE_NO_MEMORY(names[1].result_name);
1708                 names[1].status = DRSUAPI_DS_NAME_STATUS_OK;
1709         }
1710
1711         dn = ldb_msg_find_attr_as_dn(sam_ctx, mem_ctx, res->msgs[0], "serverReference");
1712         if (dn != NULL) {
1713                 names[2].result_name = ldb_dn_alloc_linearized(names, dn);
1714                 W_ERROR_HAVE_NO_MEMORY(names[2].result_name);
1715                 names[2].status = DRSUAPI_DS_NAME_STATUS_OK;
1716         }
1717
1718         talloc_free(dn);
1719         talloc_free(res);
1720
1721         return WERR_OK;
1722 }