source4/rpc_server/drsuapi/drsuapi_cracknames.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    endpoint server for the drsuapi pipe
   5    DsCrackNames()
   6
   7    Copyright (C) Stefan Metzmacher 2004
   8    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 */
  24
  25 #include "includes.h"
  26 #include "librpc/gen_ndr/ndr_drsuapi.h"
  27 #include "rpc_server/dcerpc_server.h"
  28 #include "rpc_server/common/common.h"
  29 #include "rpc_server/drsuapi/dcesrv_drsuapi.h"
  30 #include "lib/ldb/include/ldb.h"
  31 #include "system/kerberos.h"
  32 #include "auth/kerberos/kerberos.h"
  33
  34 static WERROR DsCrackNameOneFilter(struct drsuapi_bind_state *b_state, TALLOC_CTX *mem_ctx,
  35                                    struct smb_krb5_context *smb_krb5_context,
  36                                    uint32_t format_flags, uint32_t format_offered, uint32_t format_desired,
  37                                    const struct ldb_dn *name_dn, const char *name,
  38                                    const char *domain_filter, const char *result_filter,
  39                                    struct drsuapi_DsNameInfo1 *info1);
  40 static WERROR DsCrackNameOneName(struct drsuapi_bind_state *b_state, TALLOC_CTX *mem_ctx,
  41                                  uint32_t format_flags, uint32_t format_offered, uint32_t format_desired,
  42                                  const char *name, struct drsuapi_DsNameInfo1 *info1);
  43
  44 static enum drsuapi_DsNameStatus LDB_lookup_spn_alias(krb5_context context, struct ldb_context *ldb_ctx,
  45                                    TALLOC_CTX *mem_ctx,
  46                                    const char *alias_from,
  47                                    char **alias_to)
  48 {
  49         int i;
  50         int count;
  51         struct ldb_message **msg;
  52         struct ldb_message_element *spnmappings;
  53         struct ldb_dn *service_dn = ldb_dn_string_compose(mem_ctx, samdb_base_dn(mem_ctx),
  54                                                 "CN=Directory Service,CN=Windows NT"
  55                                                 ",CN=Services,CN=Configuration");
  56         char *service_dn_str = ldb_dn_linearize(mem_ctx, service_dn);
  57         const char *directory_attrs[] = {
  58                 "sPNMappings",
  59                 NULL
  60         };
  61
  62         count = ldb_search(ldb_ctx, service_dn, LDB_SCOPE_BASE, "(objectClass=nTDSService)",
  63                            directory_attrs, &msg);
  64         talloc_steal(mem_ctx, msg);
  65
  66         if (count < 1) {
  67                 DEBUG(1, ("ldb_search: dn: %s not found: %d", service_dn_str, count));
  68                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
  69         } else if (count > 1) {
  70                 DEBUG(1, ("ldb_search: dn: %s found %d times!", service_dn_str, count));
  71                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
  72         }
  73
  74         spnmappings = ldb_msg_find_element(msg[0], "sPNMappings");
  75         if (!spnmappings || spnmappings->num_values == 0) {
  76                 DEBUG(1, ("ldb_search: dn: %s no sPNMappings attribute", service_dn_str));
  77                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
  78         }
  79
  80         for (i = 0; i < spnmappings->num_values; i++) {
  81                 char *mapping, *p, *str;
  82                 mapping = talloc_strdup(mem_ctx,
  83                                         (const char *)spnmappings->values[i].data);
  84                 if (!mapping) {
  85                         DEBUG(1, ("LDB_lookup_spn_alias: ldb_search: dn: %s did not have an sPNMapping", service_dn_str));
  86                         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
  87                 }
  88
  89                 /* C string manipulation sucks */
  90
  91                 p = strchr(mapping, '=');
  92                 if (!p) {
  93                         DEBUG(1, ("ldb_search: dn: %s sPNMapping malformed: %s",
  94                                   service_dn_str, mapping));
  95                         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
  96                 }
  97                 p[0] = '\0';
  98                 p++;
  99                 do {
 100                         str = p;
 101                         p = strchr(p, ',');
 102                         if (p) {
 103                                 p[0] = '\0';
 104                                 p++;
 105                         }
 106                         if (strcasecmp(str, alias_from) == 0) {
 107                                 *alias_to = mapping;
 108                                 return DRSUAPI_DS_NAME_STATUS_OK;
 109                         }
 110                 } while (p);
 111         }
 112         DEBUG(1, ("LDB_lookup_spn_alias: no alias for service %s applicable", alias_from));
 113         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 114 }
 115
 116 static WERROR DsCrackNameSPNAlias(struct drsuapi_bind_state *b_state, TALLOC_CTX *mem_ctx,
 117                                   struct smb_krb5_context *smb_krb5_context,
 118                                   uint32_t format_flags, uint32_t format_offered, uint32_t format_desired,
 119                                   const char *name, struct drsuapi_DsNameInfo1 *info1)
 120 {
 121         WERROR wret;
 122         krb5_error_code ret;
 123         krb5_principal principal;
 124         const char *service;
 125         char *new_service;
 126         char *new_princ;
 127         enum drsuapi_DsNameStatus namestatus;
 128
 129         /* parse principal */
 130         ret = krb5_parse_name_norealm(smb_krb5_context->krb5_context,
 131                                       name, &principal);
 132         if (ret) {
 133                 DEBUG(2, ("Could not parse principal: %s: %s",
 134                           name, smb_get_krb5_error_message(smb_krb5_context->krb5_context,
 135                                                            ret, mem_ctx)));
 136                 return WERR_NOMEM;
 137         }
 138
 139         /* grab cifs/, http/ etc */
 140         if (principal->name.name_string.len < 2) {
 141                 DEBUG(5, ("could not find principal in DB, alias not applicable"));
 142                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 143                 return WERR_OK;
 144         }
 145         service = principal->name.name_string.val[0];
 146
 147         /* MAP it */
 148         namestatus = LDB_lookup_spn_alias(smb_krb5_context->krb5_context,
 149                                           b_state->sam_ctx, mem_ctx,
 150                                           service, &new_service);
 151
 152         if (namestatus != DRSUAPI_DS_NAME_STATUS_OK) {
 153                 info1->status = namestatus;
 154                 return WERR_OK;
 155         }
 156
 157         if (ret != 0) {
 158                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 159                 return WERR_OK;
 160         }
 161
 162         /* ooh, very nasty playing around in the Principal... */
 163         free(principal->name.name_string.val[0]);
 164         principal->name.name_string.val[0] = strdup(new_service);
 165         if (!principal->name.name_string.val[0]) {
 166                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 167                 return WERR_NOMEM;
 168         }
 169
 170         ret = krb5_unparse_name_norealm(smb_krb5_context->krb5_context, principal, &new_princ);
 171
 172         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 173
 174         if (ret) {
 175                 return WERR_NOMEM;
 176         }
 177
 178         /* reform principal */
 179         wret = DsCrackNameOneName(b_state, mem_ctx, format_flags, format_offered, format_desired,
 180                                   new_princ, info1);
 181         free(new_princ);
 182         return wret;
 183 }
 184
 185 static WERROR DsCrackNameUPN(struct drsuapi_bind_state *b_state, TALLOC_CTX *mem_ctx,
 186                              struct smb_krb5_context *smb_krb5_context,
 187                              uint32_t format_flags, uint32_t format_offered, uint32_t format_desired,
 188                              const char *name, struct drsuapi_DsNameInfo1 *info1)
 189 {
 190         WERROR status;
 191         const char *domain_filter = NULL;
 192         const char *result_filter = NULL;
 193         krb5_error_code ret;
 194         krb5_principal principal;
 195         char **realm;
 196         char *unparsed_name_short;
 197
 198         /* Prevent recursion */
 199         if (!name) {
 200                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 201                 return WERR_OK;
 202         }
 203
 204         ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 205         if (ret) {
 206                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 207                 return WERR_OK;
 208         }
 209
 210         domain_filter = NULL;
 211         realm = krb5_princ_realm(smb_krb5_context->krb5_context, principal);
 212         domain_filter = talloc_asprintf(mem_ctx,
 213                                         "(&(&(|(&(dnsRoot=%s)(nETBIOSName=*))(nETBIOSName=%s))(objectclass=crossRef))(ncName=*))",
 214                                         *realm, *realm);
 215         ret = krb5_unparse_name_norealm(smb_krb5_context->krb5_context, principal, &unparsed_name_short);
 216         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 217
 218         if (ret) {
 219                 free(unparsed_name_short);
 220                 return WERR_NOMEM;
 221         }
 222
 223         /* This may need to be extended for more userPrincipalName variations */
 224         result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(samAccountName=%s))",
 225                                         unparsed_name_short);
 226         if (!result_filter || !domain_filter) {
 227                 free(unparsed_name_short);
 228                 return WERR_NOMEM;
 229         }
 230         status = DsCrackNameOneFilter(b_state, mem_ctx,
 231                                       smb_krb5_context,
 232                                       format_flags, format_offered, format_desired,
 233                                       NULL, unparsed_name_short, domain_filter, result_filter,
 234                                       info1);
 235         free(unparsed_name_short);
 236         return status;
 237 }
 238
 239 static WERROR DsCrackNameOneName(struct drsuapi_bind_state *b_state, TALLOC_CTX *mem_ctx,
 240                                  uint32_t format_flags, uint32_t format_offered, uint32_t format_desired,
 241                                  const char *name, struct drsuapi_DsNameInfo1 *info1)
 242 {
 243         krb5_error_code ret;
 244         const char *domain_filter = NULL;
 245         const char *result_filter = NULL;
 246         struct ldb_dn *name_dn = NULL;
 247
 248         struct smb_krb5_context *smb_krb5_context;
 249         ret = smb_krb5_init_context(mem_ctx, &smb_krb5_context);
 250
 251         if (ret) {
 252                 return WERR_NOMEM;
 253         }
 254
 255         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 256         info1->dns_domain_name = NULL;
 257         info1->result_name = NULL;
 258
 259         if (!name) {
 260                 return WERR_INVALID_PARAM;
 261         }
 262
 263         /* TODO: - fill the correct names in all cases!
 264          *       - handle format_flags
 265          */
 266
 267         /* here we need to set the domain_filter and/or the result_filter */
 268         switch (format_offered) {
 269         case DRSUAPI_DS_NAME_FORMAT_CANONICAL: {
 270                 char *str;
 271
 272                 str = talloc_strdup(mem_ctx, name);
 273                 WERR_TALLOC_CHECK(str);
 274
 275                 if (strlen(str) == 0 || str[strlen(str)-1] != '/') {
 276                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 277                         return WERR_OK;
 278                 }
 279
 280                 str[strlen(str)-1] = '\0';
 281
 282                 domain_filter = talloc_asprintf(mem_ctx,
 283                                                 "(&(&(&(dnsRoot=%s)(objectclass=crossRef)))(nETBIOSName=*)(ncName=*))",
 284                                                 str);
 285                 WERR_TALLOC_CHECK(domain_filter);
 286
 287                 break;
 288         }
 289         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
 290                 char *p;
 291                 char *domain;
 292                 const char *account = NULL;
 293
 294                 domain = talloc_strdup(mem_ctx, name);
 295                 WERR_TALLOC_CHECK(domain);
 296
 297                 p = strchr(domain, '\\');
 298                 if (!p) {
 299                         /* invalid input format */
 300                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 301                         return WERR_OK;
 302                 }
 303                 p[0] = '\0';
 304
 305                 if (p[1]) {
 306                         account = &p[1];
 307                 }
 308
 309                 domain_filter = talloc_asprintf(mem_ctx,
 310                                                 "(&(&(nETBIOSName=%s)(objectclass=crossRef))(ncName=*))",
 311                                                 domain);
 312                 WERR_TALLOC_CHECK(domain_filter);
 313                 if (account) {
 314                         result_filter = talloc_asprintf(mem_ctx, "(sAMAccountName=%s)",
 315                                                         account);
 316                         WERR_TALLOC_CHECK(result_filter);
 317                 }
 318
 319                 talloc_free(domain);
 320                 break;
 321         }
 322         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
 323                 name_dn = ldb_dn_explode(mem_ctx, name);
 324                 domain_filter = NULL;
 325                 if (!name_dn) {
 326                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 327                         return WERR_OK;
 328                 }
 329                 break;
 330         }
 331         case DRSUAPI_DS_NAME_FORMAT_GUID: {
 332                 struct GUID guid;
 333                 char *ldap_guid;
 334                 NTSTATUS nt_status;
 335                 domain_filter = NULL;
 336
 337                 nt_status = GUID_from_string(name, &guid);
 338                 if (!NT_STATUS_IS_OK(nt_status)) {
 339                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 340                         return WERR_OK;
 341                 }
 342
 343                 ldap_guid = ldap_encode_ndr_GUID(mem_ctx, &guid);
 344                 if (!ldap_guid) {
 345                         return WERR_NOMEM;
 346                 }
 347                 result_filter = talloc_asprintf(mem_ctx, "(objectGUID=%s)",
 348                                                 ldap_guid);
 349                 WERR_TALLOC_CHECK(result_filter);
 350                 break;
 351         }
 352
 353         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
 354                 struct dom_sid *sid = dom_sid_parse_talloc(mem_ctx, name);
 355                 char *ldap_sid;
 356
 357                 domain_filter = NULL;
 358                 if (!sid) {
 359                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 360                         return WERR_OK;
 361                 }
 362                 ldap_sid = ldap_encode_ndr_dom_sid(mem_ctx,
 363                                                    sid);
 364                 if (!ldap_sid) {
 365                         return WERR_NOMEM;
 366                 }
 367                 result_filter = talloc_asprintf(mem_ctx, "(objectSid=%s)",
 368                                                 ldap_sid);
 369                 WERR_TALLOC_CHECK(result_filter);
 370                 break;
 371         }
 372         case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL: {
 373                 krb5_principal principal;
 374                 char *unparsed_name;
 375                 ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 376                 if (ret) {
 377                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 378                         return WERR_OK;
 379                 }
 380
 381                 domain_filter = NULL;
 382
 383                 ret = krb5_unparse_name(smb_krb5_context->krb5_context, principal, &unparsed_name);
 384                 if (ret) {
 385                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 386                         return WERR_NOMEM;
 387                 }
 388
 389                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 390                 result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(userPrincipalName=%s))",
 391                                                 unparsed_name);
 392
 393                 free(unparsed_name);
 394                 WERR_TALLOC_CHECK(result_filter);
 395                 break;
 396         }
 397         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
 398                 krb5_principal principal;
 399                 char *unparsed_name_short;
 400                 ret = krb5_parse_name_norealm(smb_krb5_context->krb5_context, name, &principal);
 401                 if (ret) {
 402                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 403                         return WERR_OK;
 404                 }
 405
 406                 domain_filter = NULL;
 407
 408                 ret = krb5_unparse_name_norealm(smb_krb5_context->krb5_context, principal, &unparsed_name_short);
 409                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 410                 if (ret) {
 411                         return WERR_NOMEM;
 412                 }
 413
 414                 result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(servicePrincipalName=%s))",
 415                                                 unparsed_name_short);
 416                 free(unparsed_name_short);
 417                 WERR_TALLOC_CHECK(result_filter);
 418
 419                 break;
 420         }
 421         default: {
 422                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 423                 return WERR_OK;
 424         }
 425
 426         }
 427
 428         return DsCrackNameOneFilter(b_state, mem_ctx,
 429                                     smb_krb5_context,
 430                                     format_flags, format_offered, format_desired,
 431                                     name_dn, name,
 432                                     domain_filter, result_filter,
 433                                     info1);
 434 }
 435
 436 static WERROR DsCrackNameOneFilter(struct drsuapi_bind_state *b_state, TALLOC_CTX *mem_ctx,
 437                                    struct smb_krb5_context *smb_krb5_context,
 438                                    uint32_t format_flags, uint32_t format_offered, uint32_t format_desired,
 439                                    const struct ldb_dn *name_dn, const char *name,
 440                                    const char *domain_filter, const char *result_filter,
 441                                    struct drsuapi_DsNameInfo1 *info1)
 442 {
 443         int ldb_ret;
 444         struct ldb_message **domain_res = NULL;
 445         const char * const *domain_attrs;
 446         const char * const *result_attrs;
 447         struct ldb_message **result_res = NULL;
 448         const struct ldb_dn *result_basedn;
 449
 450         /* here we need to set the attrs lists for domain and result lookups */
 451         switch (format_desired) {
 452                 case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
 453                         const char * const _domain_attrs[] = { "ncName", "dnsRoot", NULL};
 454                         const char * const _result_attrs[] = { "dn", NULL};
 455
 456                         domain_attrs = _domain_attrs;
 457                         result_attrs = _result_attrs;
 458                         break;
 459                 }
 460                 case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
 461                         const char * const _domain_attrs[] = { "ncName", "dnsRoot", "nETBIOSName", NULL};
 462                         const char * const _result_attrs[] = { "sAMAccountName", "objectSid", NULL};
 463
 464                         domain_attrs = _domain_attrs;
 465                         result_attrs = _result_attrs;
 466                         break;
 467                 }
 468                 case DRSUAPI_DS_NAME_FORMAT_GUID: {
 469                         const char * const _domain_attrs[] = { "ncName", "dnsRoot", NULL};
 470                         const char * const _result_attrs[] = { "objectGUID", NULL};
 471
 472                         domain_attrs = _domain_attrs;
 473                         result_attrs = _result_attrs;
 474                         break;
 475                 }
 476                 default:
 477                         return WERR_OK;
 478         }
 479
 480         if (domain_filter) {
 481                 /* if we have a domain_filter look it up and set the result_basedn and the dns_domain_name */
 482                 ldb_ret = gendb_search(b_state->sam_ctx, mem_ctx, NULL, &domain_res, domain_attrs,
 483                                        "%s", domain_filter);
 484         } else {
 485                 ldb_ret = gendb_search(b_state->sam_ctx, mem_ctx, NULL, &domain_res, domain_attrs,
 486                                        "(ncName=%s)", ldb_dn_linearize(mem_ctx, samdb_base_dn(mem_ctx)));
 487         }
 488
 489         switch (ldb_ret) {
 490         case 1:
 491                 break;
 492         case 0:
 493                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 494                 return WERR_OK;
 495         case -1:
 496                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 497                 return WERR_OK;
 498         default:
 499                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 500                 return WERR_OK;
 501         }
 502
 503         info1->dns_domain_name  = samdb_result_string(domain_res[0], "dnsRoot", NULL);
 504         WERR_TALLOC_CHECK(info1->dns_domain_name);
 505         info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 506
 507         if (result_filter) {
 508                 result_basedn = samdb_result_dn(mem_ctx, domain_res[0], "ncName", NULL);
 509
 510                 ldb_ret = gendb_search(b_state->sam_ctx, mem_ctx, result_basedn, &result_res,
 511                                        result_attrs, "%s", result_filter);
 512         } else if (format_offered == DRSUAPI_DS_NAME_FORMAT_FQDN_1779) {
 513                 ldb_ret = gendb_search_dn(b_state->sam_ctx, mem_ctx, name_dn, &result_res,
 514                                           result_attrs);
 515         } else {
 516                 name_dn = samdb_result_dn(mem_ctx, domain_res[0], "ncName", NULL);
 517                 ldb_ret = gendb_search_dn(b_state->sam_ctx, mem_ctx, name_dn, &result_res,
 518                                           result_attrs);
 519         }
 520
 521         switch (ldb_ret) {
 522         case 1:
 523                 break;
 524         case 0:
 525                 switch (format_offered) {
 526                 case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL:
 527                         return DsCrackNameSPNAlias(b_state, mem_ctx,
 528                                                    smb_krb5_context,
 529                                                    format_flags, format_offered, format_desired,
 530                                                    name, info1);
 531
 532                 case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL:
 533                         return DsCrackNameUPN(b_state, mem_ctx, smb_krb5_context,
 534                                               format_flags, format_offered, format_desired,
 535                                               name, info1);
 536                 }
 537                 break;
 538         case -1:
 539                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 540                 return WERR_OK;
 541         default:
 542                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 543                 return WERR_OK;
 544         }
 545
 546         /* here we can use result_res[0] and domain_res[0] */
 547         switch (format_desired) {
 548         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
 549                 info1->result_name      = ldb_dn_linearize(mem_ctx, result_res[0]->dn);
 550                 WERR_TALLOC_CHECK(info1->result_name);
 551
 552                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
 553                 return WERR_OK;
 554         }
 555         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
 556                 const struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, result_res[0], "objectSid");
 557                 const char *_acc = "", *_dom = "";
 558
 559                 if ((sid->num_auths < 4) || (sid->num_auths > 5)) {
 560                         info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
 561                         return WERR_OK;
 562                 }
 563
 564                 if (sid->num_auths == 4) {
 565                         ldb_ret = gendb_search(b_state->sam_ctx, mem_ctx, NULL, &domain_res, domain_attrs,
 566                                                "(ncName=%s)", ldb_dn_linearize(mem_ctx, result_res[0]->dn));
 567                         if (ldb_ret != 1) {
 568                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 569                                 return WERR_OK;
 570                         }
 571                         _dom = samdb_result_string(domain_res[0], "nETBIOSName", NULL);
 572                         WERR_TALLOC_CHECK(_dom);
 573
 574                 } else if (sid->num_auths == 5) {
 575                         const char *attrs[] = { NULL };
 576                         struct ldb_message **domain_res2;
 577                         struct dom_sid *dom_sid = dom_sid_dup(mem_ctx, sid);
 578                         if (!dom_sid) {
 579                                 return WERR_OK;
 580                         }
 581                         dom_sid->num_auths--;
 582                         ldb_ret = gendb_search(b_state->sam_ctx, mem_ctx, NULL, &domain_res2, attrs,
 583                                                "(objectSid=%s)", ldap_encode_ndr_dom_sid(mem_ctx, dom_sid));
 584                         if (ldb_ret != 1) {
 585                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 586                                 return WERR_OK;
 587                         }
 588                         ldb_ret = gendb_search(b_state->sam_ctx, mem_ctx, NULL, &domain_res, domain_attrs,
 589                                                "(ncName=%s)", ldb_dn_linearize(mem_ctx, domain_res2[0]->dn));
 590                         if (ldb_ret != 1) {
 591                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 592                                 return WERR_OK;
 593                         }
 594
 595                         _dom = samdb_result_string(domain_res2[0], "nETBIOSName", NULL);
 596                         WERR_TALLOC_CHECK(_dom);
 597
 598                         _acc = samdb_result_string(result_res[0], "sAMAccountName", NULL);
 599                         WERR_TALLOC_CHECK(_acc);
 600                 }
 601
 602                 info1->result_name      = talloc_asprintf(mem_ctx, "%s\\%s", _dom, _acc);
 603                 WERR_TALLOC_CHECK(info1->result_name);
 604
 605                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
 606                 return WERR_OK;
 607         }
 608         case DRSUAPI_DS_NAME_FORMAT_GUID: {
 609                 struct GUID guid;
 610
 611                 guid = samdb_result_guid(result_res[0], "objectGUID");
 612
 613                 info1->result_name      = GUID_string2(mem_ctx, &guid);
 614                 WERR_TALLOC_CHECK(info1->result_name);
 615
 616                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
 617                 return WERR_OK;
 618         }
 619         default:
 620                 return WERR_OK;
 621         }
 622
 623         return WERR_INVALID_PARAM;
 624 }
 625
 626 /*
 627   drsuapi_DsCrackNames
 628 */
 629 WERROR dcesrv_drsuapi_DsCrackNames(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
 630                        struct drsuapi_DsCrackNames *r)
 631 {
 632         WERROR status;
 633         struct drsuapi_bind_state *b_state;
 634         struct dcesrv_handle *h;
 635
 636         r->out.level = r->in.level;
 637         ZERO_STRUCT(r->out.ctr);
 638
 639         DCESRV_PULL_HANDLE_WERR(h, r->in.bind_handle, DRSUAPI_BIND_HANDLE);
 640         b_state = h->data;
 641
 642         switch (r->in.level) {
 643                 case 1: {
 644                         struct drsuapi_DsNameCtr1 *ctr1;
 645                         struct drsuapi_DsNameInfo1 *names;
 646                         int count;
 647                         int i;
 648
 649                         ctr1 = talloc(mem_ctx, struct drsuapi_DsNameCtr1);
 650                         WERR_TALLOC_CHECK(ctr1);
 651
 652                         count = r->in.req.req1.count;
 653                         names = talloc_array(mem_ctx, struct drsuapi_DsNameInfo1, count);
 654                         WERR_TALLOC_CHECK(names);
 655
 656                         for (i=0; i < count; i++) {
 657                                 status = DsCrackNameOneName(b_state, mem_ctx,
 658                                                             r->in.req.req1.format_flags,
 659                                                             r->in.req.req1.format_offered,
 660                                                             r->in.req.req1.format_desired,
 661                                                             r->in.req.req1.names[i].str,
 662                                                             &names[i]);
 663                                 if (!W_ERROR_IS_OK(status)) {
 664                                         return status;
 665                                 }
 666                         }
 667
 668                         ctr1->count = count;
 669                         ctr1->array = names;
 670                         r->out.ctr.ctr1 = ctr1;
 671
 672                         return WERR_OK;
 673                 }
 674         }
 675
 676         return WERR_UNKNOWN_LEVEL;
 677 }