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
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "includes.h"
  26 #include "librpc/gen_ndr/drsuapi.h"
  27 #include "lib/events/events.h"
  28 #include <ldb.h>
  29 #include <ldb_errors.h>
  30 #include "auth/kerberos/kerberos.h"
  31 #include "libcli/ldap/ldap_ndr.h"
  32 #include "libcli/security/security.h"
  33 #include "auth/auth.h"
  34 #include "../lib/util/util_ldb.h"
  35 #include "dsdb/samdb/samdb.h"
  36 #include "dsdb/common/util.h"
  37 #include "param/param.h"
  38
  39 static WERROR DsCrackNameOneFilter(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
  40                                    struct smb_krb5_context *smb_krb5_context,
  41                                    uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
  42                                    enum drsuapi_DsNameFormat format_desired,
  43                                    struct ldb_dn *name_dn, const char *name,
  44                                    const char *domain_filter, const char *result_filter,
  45                                    struct drsuapi_DsNameInfo1 *info1, int scope, struct ldb_dn *search_dn);
  46 static WERROR DsCrackNameOneSyntactical(TALLOC_CTX *mem_ctx,
  47                                         enum drsuapi_DsNameFormat format_offered,
  48                                         enum drsuapi_DsNameFormat format_desired,
  49                                         struct ldb_dn *name_dn, const char *name,
  50                                         struct drsuapi_DsNameInfo1 *info1);
  51
  52 static WERROR dns_domain_from_principal(TALLOC_CTX *mem_ctx, struct smb_krb5_context *smb_krb5_context,
  53                                         const char *name,
  54                                         struct drsuapi_DsNameInfo1 *info1)
  55 {
  56         krb5_error_code ret;
  57         krb5_principal principal;
  58         /* perhaps it's a principal with a realm, so return the right 'domain only' response */
  59         char *realm;
  60         ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
  61                                     KRB5_PRINCIPAL_PARSE_REQUIRE_REALM, &principal);
  62         if (ret) {
  63                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
  64                 return WERR_OK;
  65         }
  66
  67         realm = smb_krb5_principal_get_realm(smb_krb5_context->krb5_context, principal);
  68
  69         info1->dns_domain_name  = talloc_strdup(mem_ctx, realm);
  70         krb5_free_principal(smb_krb5_context->krb5_context, principal);
  71         free(realm);
  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(krb5_context context, struct ldb_context *ldb_ctx,
  80                                                       TALLOC_CTX *mem_ctx,
  81                                                       const char *alias_from,
  82                                                       char **alias_to)
  83 {
  84         unsigned int i;
  85         int ret;
  86         struct ldb_result *res;
  87         struct ldb_message_element *spnmappings;
  88         TALLOC_CTX *tmp_ctx;
  89         struct ldb_dn *service_dn;
  90         char *service_dn_str;
  91
  92         const char *directory_attrs[] = {
  93                 "sPNMappings",
  94                 NULL
  95         };
  96
  97         tmp_ctx = talloc_new(mem_ctx);
  98         if (!tmp_ctx) {
  99                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 100         }
 101
 102         service_dn = ldb_dn_new(tmp_ctx, ldb_ctx, "CN=Directory Service,CN=Windows NT,CN=Services");
 103         if ( ! ldb_dn_add_base(service_dn, ldb_get_config_basedn(ldb_ctx))) {
 104                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 105         }
 106         service_dn_str = ldb_dn_alloc_linearized(tmp_ctx, service_dn);
 107         if ( ! service_dn_str) {
 108                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 109         }
 110
 111         ret = ldb_search(ldb_ctx, tmp_ctx, &res, service_dn, LDB_SCOPE_BASE,
 112                          directory_attrs, "(objectClass=nTDSService)");
 113
 114         if (ret != LDB_SUCCESS && ret != LDB_ERR_NO_SUCH_OBJECT) {
 115                 DEBUG(1, ("ldb_search: dn: %s not found: %s\n", service_dn_str, ldb_errstring(ldb_ctx)));
 116                 return DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 117         } else if (ret == LDB_ERR_NO_SUCH_OBJECT) {
 118                 DEBUG(1, ("ldb_search: dn: %s not found\n", service_dn_str));
 119                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 120         } else if (res->count != 1) {
 121                 talloc_free(res);
 122                 DEBUG(1, ("ldb_search: dn: %s not found\n", service_dn_str));
 123                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 124         }
 125
 126         spnmappings = ldb_msg_find_element(res->msgs[0], "sPNMappings");
 127         if (!spnmappings || spnmappings->num_values == 0) {
 128                 DEBUG(1, ("ldb_search: dn: %s no sPNMappings attribute\n", service_dn_str));
 129                 talloc_free(tmp_ctx);
 130                 return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 131         }
 132
 133         for (i = 0; i < spnmappings->num_values; i++) {
 134                 char *mapping, *p, *str;
 135                 mapping = talloc_strdup(tmp_ctx,
 136                                         (const char *)spnmappings->values[i].data);
 137                 if (!mapping) {
 138                         DEBUG(1, ("LDB_lookup_spn_alias: ldb_search: dn: %s did not have an sPNMapping\n", service_dn_str));
 139                         talloc_free(tmp_ctx);
 140                         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 141                 }
 142
 143                 /* C string manipulation sucks */
 144
 145                 p = strchr(mapping, '=');
 146                 if (!p) {
 147                         DEBUG(1, ("ldb_search: dn: %s sPNMapping malformed: %s\n",
 148                                   service_dn_str, mapping));
 149                         talloc_free(tmp_ctx);
 150                         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 151                 }
 152                 p[0] = '\0';
 153                 p++;
 154                 do {
 155                         str = p;
 156                         p = strchr(p, ',');
 157                         if (p) {
 158                                 p[0] = '\0';
 159                                 p++;
 160                         }
 161                         if (strcasecmp(str, alias_from) == 0) {
 162                                 *alias_to = mapping;
 163                                 talloc_steal(mem_ctx, mapping);
 164                                 talloc_free(tmp_ctx);
 165                                 return DRSUAPI_DS_NAME_STATUS_OK;
 166                         }
 167                 } while (p);
 168         }
 169         DEBUG(4, ("LDB_lookup_spn_alias: no alias for service %s applicable\n", alias_from));
 170         talloc_free(tmp_ctx);
 171         return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 172 }
 173
 174 /* When cracking a ServicePrincipalName, many services may be served
 175  * by the host/ servicePrincipalName.  The incoming query is for cifs/
 176  * but we translate it here, and search on host/.  This is done after
 177  * the cifs/ entry has been searched for, making this a fallback */
 178
 179 static WERROR DsCrackNameSPNAlias(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 180                                   struct smb_krb5_context *smb_krb5_context,
 181                                   uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 182                                   enum drsuapi_DsNameFormat format_desired,
 183                                   const char *name, struct drsuapi_DsNameInfo1 *info1)
 184 {
 185         WERROR wret;
 186         krb5_error_code ret;
 187         krb5_principal principal;
 188         const krb5_data *component;
 189         const char *service, *dns_name;
 190         char *new_service;
 191         char *new_princ;
 192         enum drsuapi_DsNameStatus namestatus;
 193
 194         /* parse principal */
 195         ret = krb5_parse_name_flags(smb_krb5_context->krb5_context,
 196                                     name, KRB5_PRINCIPAL_PARSE_NO_REALM, &principal);
 197         if (ret) {
 198                 DEBUG(2, ("Could not parse principal: %s: %s\n",
 199                           name, smb_get_krb5_error_message(smb_krb5_context->krb5_context,
 200                                                            ret, mem_ctx)));
 201                 return WERR_NOMEM;
 202         }
 203
 204         /* grab cifs/, http/ etc */
 205
 206         /* This is checked for in callers, but be safe */
 207         if (krb5_princ_size(smb_krb5_context->krb5_context, principal) < 2) {
 208                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 209                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 210                 return WERR_OK;
 211         }
 212         component = krb5_princ_component(smb_krb5_context->krb5_context,
 213                                          principal, 0);
 214         service = (const char *)component->data;
 215         component = krb5_princ_component(smb_krb5_context->krb5_context,
 216                                          principal, 1);
 217         dns_name = (const char *)component->data;
 218
 219         /* MAP it */
 220         namestatus = LDB_lookup_spn_alias(smb_krb5_context->krb5_context,
 221                                           sam_ctx, mem_ctx,
 222                                           service, &new_service);
 223
 224         if (namestatus == DRSUAPI_DS_NAME_STATUS_NOT_FOUND) {
 225                 wret = WERR_OK;
 226                 info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 227                 info1->dns_domain_name  = talloc_strdup(mem_ctx, dns_name);
 228                 if (!info1->dns_domain_name) {
 229                         wret = WERR_NOMEM;
 230                 }
 231                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 232                 return wret;
 233         } else if (namestatus != DRSUAPI_DS_NAME_STATUS_OK) {
 234                 info1->status = namestatus;
 235                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 236                 return WERR_OK;
 237         }
 238
 239         /* reform principal */
 240         new_princ = talloc_asprintf(mem_ctx, "%s/%s", new_service, dns_name);
 241         if (!new_princ) {
 242                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 243                 return WERR_NOMEM;
 244         }
 245
 246         wret = DsCrackNameOneName(sam_ctx, mem_ctx, format_flags, format_offered, format_desired,
 247                                   new_princ, info1);
 248         talloc_free(new_princ);
 249         if (W_ERROR_IS_OK(wret) && (info1->status == DRSUAPI_DS_NAME_STATUS_NOT_FOUND)) {
 250                 info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 251                 info1->dns_domain_name  = talloc_strdup(mem_ctx, dns_name);
 252                 if (!info1->dns_domain_name) {
 253                         wret = WERR_NOMEM;
 254                 }
 255         }
 256         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 257         return wret;
 258 }
 259
 260 /* Subcase of CrackNames, for the userPrincipalName */
 261
 262 static WERROR DsCrackNameUPN(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 263                              struct smb_krb5_context *smb_krb5_context,
 264                              uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 265                              enum drsuapi_DsNameFormat format_desired,
 266                              const char *name, struct drsuapi_DsNameInfo1 *info1)
 267 {
 268         int ldb_ret;
 269         WERROR status;
 270         const char *domain_filter = NULL;
 271         const char *result_filter = NULL;
 272         krb5_error_code ret;
 273         krb5_principal principal;
 274         char *realm;
 275         char *unparsed_name_short;
 276         const char *domain_attrs[] = { NULL };
 277         struct ldb_result *domain_res = NULL;
 278
 279         /* Prevent recursion */
 280         if (!name) {
 281                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 282                 return WERR_OK;
 283         }
 284
 285         ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
 286                                     KRB5_PRINCIPAL_PARSE_REQUIRE_REALM, &principal);
 287         if (ret) {
 288                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 289                 return WERR_OK;
 290         }
 291
 292         realm = smb_krb5_principal_get_realm(smb_krb5_context->krb5_context,
 293                                              principal);
 294
 295         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 296                              samdb_partitions_dn(sam_ctx, mem_ctx),
 297                              LDB_SCOPE_ONELEVEL,
 298                              domain_attrs,
 299                              "(&(objectClass=crossRef)(|(dnsRoot=%s)(netbiosName=%s))(systemFlags:%s:=%u))",
 300                              ldb_binary_encode_string(mem_ctx, realm),
 301                              ldb_binary_encode_string(mem_ctx, realm),
 302                              LDB_OID_COMPARATOR_AND,
 303                              SYSTEM_FLAG_CR_NTDS_DOMAIN);
 304         free(realm);
 305
 306         if (ldb_ret != LDB_SUCCESS) {
 307                 DEBUG(2, ("DsCrackNameUPN domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 308                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 309                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 310                 return WERR_OK;
 311         }
 312
 313         switch (domain_res->count) {
 314         case 1:
 315                 break;
 316         case 0:
 317                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 318                 return dns_domain_from_principal(mem_ctx, smb_krb5_context,
 319                                                  name, info1);
 320         default:
 321                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 322                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 323                 return WERR_OK;
 324         }
 325
 326         ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
 327                                       KRB5_PRINCIPAL_UNPARSE_NO_REALM, &unparsed_name_short);
 328         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 329
 330         if (ret) {
 331                 free(unparsed_name_short);
 332                 return WERR_NOMEM;
 333         }
 334
 335         /* This may need to be extended for more userPrincipalName variations */
 336         result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(samAccountName=%s))",
 337                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short));
 338
 339         domain_filter = talloc_asprintf(mem_ctx, "(distinguishedName=%s)", ldb_dn_get_linearized(domain_res->msgs[0]->dn));
 340
 341         if (!result_filter || !domain_filter) {
 342                 free(unparsed_name_short);
 343                 return WERR_NOMEM;
 344         }
 345         status = DsCrackNameOneFilter(sam_ctx, mem_ctx,
 346                                       smb_krb5_context,
 347                                       format_flags, format_offered, format_desired,
 348                                       NULL, unparsed_name_short, domain_filter, result_filter,
 349                                       info1, LDB_SCOPE_SUBTREE, NULL);
 350         free(unparsed_name_short);
 351
 352         return status;
 353 }
 354
 355 /*
 356  * This function will workout the filtering parameter in order to be able to do
 357  * the adapted search when the incomming format is format_functional.
 358  * This boils down to defining the search_dn (passed as pointer to ldb_dn *) and the
 359  * ldap filter request.
 360  * Main input parameters are:
 361  * * name, which is the portion of the functional name after the
 362  * first '/'.
 363  * * domain_filter, which is a ldap search filter used to find the NC DN given the
 364  * function name to crack.
 365  */
 366 static WERROR get_format_functional_filtering_param(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 367                         char *name, struct drsuapi_DsNameInfo1 *info1,
 368                         struct ldb_dn **psearch_dn, const char *domain_filter, const char **presult_filter)
 369 {
 370         struct ldb_result *domain_res = NULL;
 371         const char * const domain_attrs[] = {"ncName", NULL};
 372         struct ldb_dn *partitions_basedn = samdb_partitions_dn(sam_ctx, mem_ctx);
 373         int ldb_ret;
 374         char *account,  *s, *result_filter = NULL;
 375         struct ldb_dn *search_dn = NULL;
 376
 377         *psearch_dn = NULL;
 378         *presult_filter = NULL;
 379
 380         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 381                                 partitions_basedn,
 382                                 LDB_SCOPE_ONELEVEL,
 383                                 domain_attrs,
 384                                 "%s", domain_filter);
 385
 386         if (ldb_ret != LDB_SUCCESS) {
 387                 DEBUG(2, ("DsCrackNameOne domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 388                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 389                 return WERR_FOOBAR;
 390         }
 391
 392         if (domain_res->count == 1) {
 393                 struct ldb_dn *tmp_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
 394                 const char * const name_attrs[] = {"name", NULL};
 395
 396                 account = name;
 397                 s = strchr(account, '/');
 398                 talloc_free(domain_res);
 399                 while(s) {
 400                         s[0] = '\0';
 401                         s++;
 402
 403                         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 404                                                 tmp_dn,
 405                                                 LDB_SCOPE_ONELEVEL,
 406                                                 name_attrs,
 407                                                 "name=%s", account);
 408
 409                         if (ldb_ret != LDB_SUCCESS) {
 410                                 DEBUG(2, ("DsCrackNameOne domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 411                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 412                                 return WERR_OK;
 413                         }
 414                         talloc_free(tmp_dn);
 415                         switch (domain_res->count) {
 416                         case 1:
 417                                 break;
 418                         case 0:
 419                                 talloc_free(domain_res);
 420                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 421                                 return WERR_OK;
 422                         default:
 423                                 talloc_free(domain_res);
 424                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 425                                 return WERR_OK;
 426                         }
 427
 428                         tmp_dn = talloc_steal(mem_ctx, domain_res->msgs[0]->dn);
 429                         talloc_free(domain_res);
 430                         search_dn = tmp_dn;
 431                         account = s;
 432                         s = strchr(account, '/');
 433                 }
 434                 account = ldb_binary_encode_string(mem_ctx, account);
 435                 W_ERROR_HAVE_NO_MEMORY(account);
 436                 result_filter = talloc_asprintf(mem_ctx, "(name=%s)",
 437                                                 account);
 438                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 439         }
 440         *psearch_dn = search_dn;
 441         *presult_filter = result_filter;
 442         return WERR_OK;
 443 }
 444
 445 /* Crack a single 'name', from format_offered into format_desired, returning the result in info1 */
 446
 447 WERROR DsCrackNameOneName(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 448                           uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 449                           enum drsuapi_DsNameFormat format_desired,
 450                           const char *name, struct drsuapi_DsNameInfo1 *info1)
 451 {
 452         krb5_error_code ret;
 453         const char *domain_filter = NULL;
 454         const char *result_filter = NULL;
 455         struct ldb_dn *name_dn = NULL;
 456         struct ldb_dn *search_dn = NULL;
 457
 458         struct smb_krb5_context *smb_krb5_context = NULL;
 459         int scope = LDB_SCOPE_SUBTREE;
 460
 461         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 462         info1->dns_domain_name = NULL;
 463         info1->result_name = NULL;
 464
 465         if (!name) {
 466                 return WERR_INVALID_PARAM;
 467         }
 468
 469         /* TODO: - fill the correct names in all cases!
 470          *       - handle format_flags
 471          */
 472         if (format_desired == DRSUAPI_DS_NAME_FORMAT_UNKNOWN) {
 473                 return WERR_OK;
 474         }
 475         /* here we need to set the domain_filter and/or the result_filter */
 476         switch (format_offered) {
 477         case DRSUAPI_DS_NAME_FORMAT_UNKNOWN:
 478         {
 479                 unsigned int i;
 480                 enum drsuapi_DsNameFormat formats[] = {
 481                         DRSUAPI_DS_NAME_FORMAT_FQDN_1779, DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
 482                         DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT, DRSUAPI_DS_NAME_FORMAT_CANONICAL,
 483                         DRSUAPI_DS_NAME_FORMAT_GUID, DRSUAPI_DS_NAME_FORMAT_DISPLAY,
 484                         DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
 485                         DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY,
 486                         DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX
 487                 };
 488                 WERROR werr;
 489                 for (i=0; i < ARRAY_SIZE(formats); i++) {
 490                         werr = DsCrackNameOneName(sam_ctx, mem_ctx, format_flags, formats[i], format_desired, name, info1);
 491                         if (!W_ERROR_IS_OK(werr)) {
 492                                 return werr;
 493                         }
 494                         if (info1->status != DRSUAPI_DS_NAME_STATUS_NOT_FOUND &&
 495                             (formats[i] != DRSUAPI_DS_NAME_FORMAT_CANONICAL ||
 496                              info1->status != DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR))
 497                         {
 498                                 return werr;
 499                         }
 500                 }
 501                 return werr;
 502         }
 503
 504         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 505         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 506         {
 507                 char *str, *s, *account;
 508                 scope = LDB_SCOPE_ONELEVEL;
 509
 510                 if (strlen(name) == 0) {
 511                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 512                         return WERR_OK;
 513                 }
 514
 515                 str = talloc_strdup(mem_ctx, name);
 516                 W_ERROR_HAVE_NO_MEMORY(str);
 517
 518                 if (format_offered == DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX) {
 519                         /* Look backwards for the \n, and replace it with / */
 520                         s = strrchr(str, '\n');
 521                         if (!s) {
 522                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 523                                 return WERR_OK;
 524                         }
 525                         s[0] = '/';
 526                 }
 527
 528                 s = strchr(str, '/');
 529                 if (!s) {
 530                         /* there must be at least one / */
 531                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 532                         return WERR_OK;
 533                 }
 534
 535                 s[0] = '\0';
 536                 s++;
 537
 538                 domain_filter = talloc_asprintf(mem_ctx, "(&(objectClass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))",
 539                                                 ldb_binary_encode_string(mem_ctx, str),
 540                                                 LDB_OID_COMPARATOR_AND,
 541                                                 SYSTEM_FLAG_CR_NTDS_DOMAIN);
 542                 W_ERROR_HAVE_NO_MEMORY(domain_filter);
 543
 544                 /* There may not be anything after the domain component (search for the domain itself) */
 545                 account = s;
 546                 if (account && *account) {
 547                         WERROR werr = get_format_functional_filtering_param(sam_ctx,
 548                                                                                 mem_ctx,
 549                                                                                 account,
 550                                                                                 info1,
 551                                                                                 &search_dn,
 552                                                                                 domain_filter,
 553                                                                                 &result_filter);
 554                         if (!W_ERROR_IS_OK(werr)) {
 555                                 return werr;
 556                         }
 557                         if (info1->status != DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR)
 558                                 return WERR_OK;
 559                 }
 560                 break;
 561         }
 562         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
 563                 char *p;
 564                 char *domain;
 565                 const char *account = NULL;
 566
 567                 domain = talloc_strdup(mem_ctx, name);
 568                 W_ERROR_HAVE_NO_MEMORY(domain);
 569
 570                 p = strchr(domain, '\\');
 571                 if (!p) {
 572                         /* invalid input format */
 573                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 574                         return WERR_OK;
 575                 }
 576                 p[0] = '\0';
 577
 578                 if (p[1]) {
 579                         account = &p[1];
 580                 }
 581
 582                 domain_filter = talloc_asprintf(mem_ctx,
 583                                                 "(&(objectClass=crossRef)(netbiosName=%s)(systemFlags:%s:=%u))",
 584                                                 ldb_binary_encode_string(mem_ctx, domain),
 585                                                 LDB_OID_COMPARATOR_AND,
 586                                                 SYSTEM_FLAG_CR_NTDS_DOMAIN);
 587                 W_ERROR_HAVE_NO_MEMORY(domain_filter);
 588                 if (account) {
 589                         result_filter = talloc_asprintf(mem_ctx, "(sAMAccountName=%s)",
 590                                                         ldb_binary_encode_string(mem_ctx, account));
 591                         W_ERROR_HAVE_NO_MEMORY(result_filter);
 592                 }
 593
 594                 talloc_free(domain);
 595                 break;
 596         }
 597
 598                 /* A LDAP DN as a string */
 599         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
 600                 domain_filter = NULL;
 601                 name_dn = ldb_dn_new(mem_ctx, sam_ctx, name);
 602                 if (! ldb_dn_validate(name_dn)) {
 603                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 604                         return WERR_OK;
 605                 }
 606                 break;
 607         }
 608
 609                 /* A GUID as a string */
 610         case DRSUAPI_DS_NAME_FORMAT_GUID: {
 611                 struct GUID guid;
 612                 char *ldap_guid;
 613                 NTSTATUS nt_status;
 614                 domain_filter = NULL;
 615
 616                 nt_status = GUID_from_string(name, &guid);
 617                 if (!NT_STATUS_IS_OK(nt_status)) {
 618                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 619                         return WERR_OK;
 620                 }
 621
 622                 ldap_guid = ldap_encode_ndr_GUID(mem_ctx, &guid);
 623                 if (!ldap_guid) {
 624                         return WERR_NOMEM;
 625                 }
 626                 result_filter = talloc_asprintf(mem_ctx, "(objectGUID=%s)",
 627                                                 ldap_guid);
 628                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 629                 break;
 630         }
 631         case DRSUAPI_DS_NAME_FORMAT_DISPLAY: {
 632                 domain_filter = NULL;
 633
 634                 result_filter = talloc_asprintf(mem_ctx, "(|(displayName=%s)(samAccountName=%s))",
 635                                                 ldb_binary_encode_string(mem_ctx, name),
 636                                                 ldb_binary_encode_string(mem_ctx, name));
 637                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 638                 break;
 639         }
 640
 641                 /* A S-1234-5678 style string */
 642         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
 643                 struct dom_sid *sid = dom_sid_parse_talloc(mem_ctx, name);
 644                 char *ldap_sid;
 645
 646                 domain_filter = NULL;
 647                 if (!sid) {
 648                         info1->dns_domain_name = NULL;
 649                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 650                         return WERR_OK;
 651                 }
 652                 ldap_sid = ldap_encode_ndr_dom_sid(mem_ctx,
 653                                                    sid);
 654                 if (!ldap_sid) {
 655                         return WERR_NOMEM;
 656                 }
 657                 result_filter = talloc_asprintf(mem_ctx, "(objectSid=%s)",
 658                                                 ldap_sid);
 659                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 660                 break;
 661         }
 662         case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL: {
 663                 krb5_principal principal;
 664                 char *unparsed_name;
 665
 666                 ret = smb_krb5_init_context(mem_ctx,
 667                                             (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
 668                                             &smb_krb5_context);
 669
 670                 if (ret) {
 671                         return WERR_NOMEM;
 672                 }
 673
 674                 /* Ensure we reject compleate junk first */
 675                 ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 676                 if (ret) {
 677                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 678                         return WERR_OK;
 679                 }
 680
 681                 domain_filter = NULL;
 682
 683                 /* By getting the unparsed name here, we ensure the escaping is correct (and trust the client less) */
 684                 ret = krb5_unparse_name(smb_krb5_context->krb5_context, principal, &unparsed_name);
 685                 if (ret) {
 686                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 687                         return WERR_NOMEM;
 688                 }
 689
 690                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 691
 692                 /* The ldb_binary_encode_string() here avoid LDAP filter injection attacks */
 693                 result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(userPrincipalName=%s))",
 694                                                 ldb_binary_encode_string(mem_ctx, unparsed_name));
 695
 696                 free(unparsed_name);
 697                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 698                 break;
 699         }
 700         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
 701                 krb5_principal principal;
 702                 char *unparsed_name_short;
 703                 const krb5_data *component;
 704                 char *service;
 705
 706                 ret = smb_krb5_init_context(mem_ctx,
 707                                             (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
 708                                             &smb_krb5_context);
 709
 710                 if (ret) {
 711                         return WERR_NOMEM;
 712                 }
 713
 714                 ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 715                 if (ret == 0 &&
 716                     krb5_princ_size(smb_krb5_context->krb5_context,
 717                                                         principal) < 2) {
 718                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 719                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 720                         return WERR_OK;
 721                 } else if (ret == 0) {
 722                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 723                 }
 724                 ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
 725                                             KRB5_PRINCIPAL_PARSE_NO_REALM, &principal);
 726                 if (ret) {
 727                         return dns_domain_from_principal(mem_ctx, smb_krb5_context,
 728                                                          name, info1);
 729                 }
 730
 731                 domain_filter = NULL;
 732
 733                 ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
 734                                               KRB5_PRINCIPAL_UNPARSE_NO_REALM, &unparsed_name_short);
 735                 if (ret) {
 736                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 737                         return WERR_NOMEM;
 738                 }
 739
 740                 component = krb5_princ_component(smb_krb5_context->krb5_context,
 741                                                  principal, 0);
 742                 service = (char *)component->data;
 743                 if ((krb5_princ_size(smb_krb5_context->krb5_context,
 744                                                         principal) == 2) &&
 745                         (strcasecmp(service, "host") == 0)) {
 746                         /* the 'cn' attribute is just the leading part of the name */
 747                         char *computer_name;
 748                         component = krb5_princ_component(
 749                                                 smb_krb5_context->krb5_context,
 750                                                 principal, 1);
 751                         computer_name = talloc_strndup(mem_ctx, (char *)component->data,
 752                                                         strcspn((char *)component->data, "."));
 753                         if (computer_name == NULL) {
 754                                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 755                                 free(unparsed_name_short);
 756                                 return WERR_NOMEM;
 757                         }
 758
 759                         result_filter = talloc_asprintf(mem_ctx, "(|(&(servicePrincipalName=%s)(objectClass=user))(&(cn=%s)(objectClass=computer)))",
 760                                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short),
 761                                                         ldb_binary_encode_string(mem_ctx, computer_name));
 762                 } else {
 763                         result_filter = talloc_asprintf(mem_ctx, "(&(servicePrincipalName=%s)(objectClass=user))",
 764                                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short));
 765                 }
 766                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 767                 free(unparsed_name_short);
 768                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 769
 770                 break;
 771         }
 772         default: {
 773                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 774                 return WERR_OK;
 775         }
 776         }
 777
 778         if (format_flags & DRSUAPI_DS_NAME_FLAG_SYNTACTICAL_ONLY) {
 779                 return DsCrackNameOneSyntactical(mem_ctx, format_offered, format_desired,
 780                                                  name_dn, name, info1);
 781         }
 782
 783         return DsCrackNameOneFilter(sam_ctx, mem_ctx,
 784                                     smb_krb5_context,
 785                                     format_flags, format_offered, format_desired,
 786                                     name_dn, name,
 787                                     domain_filter, result_filter,
 788                                     info1, scope, search_dn);
 789 }
 790
 791 /* Subcase of CrackNames.  It is possible to translate a LDAP-style DN
 792  * (FQDN_1779) into a canoical name without actually searching the
 793  * database */
 794
 795 static WERROR DsCrackNameOneSyntactical(TALLOC_CTX *mem_ctx,
 796                                         enum drsuapi_DsNameFormat format_offered,
 797                                         enum drsuapi_DsNameFormat format_desired,
 798                                         struct ldb_dn *name_dn, const char *name,
 799                                         struct drsuapi_DsNameInfo1 *info1)
 800 {
 801         char *cracked;
 802         if (format_offered != DRSUAPI_DS_NAME_FORMAT_FQDN_1779) {
 803                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_SYNTACTICAL_MAPPING;
 804                 return WERR_OK;
 805         }
 806
 807         switch (format_desired) {
 808         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 809                 cracked = ldb_dn_canonical_string(mem_ctx, name_dn);
 810                 break;
 811         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 812                 cracked = ldb_dn_canonical_ex_string(mem_ctx, name_dn);
 813                 break;
 814         default:
 815                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_SYNTACTICAL_MAPPING;
 816                 return WERR_OK;
 817         }
 818         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
 819         info1->result_name      = cracked;
 820         if (!cracked) {
 821                 return WERR_NOMEM;
 822         }
 823
 824         return WERR_OK;
 825 }
 826
 827 /* Given a filter for the domain, and one for the result, perform the
 828  * ldb search. The format offered and desired flags change the
 829  * behaviours, including what attributes to return.
 830  *
 831  * The smb_krb5_context is required because we use the krb5 libs for principal parsing
 832  */
 833
 834 static WERROR DsCrackNameOneFilter(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 835                                    struct smb_krb5_context *smb_krb5_context,
 836                                    uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 837                                    enum drsuapi_DsNameFormat format_desired,
 838                                    struct ldb_dn *name_dn, const char *name,
 839                                    const char *domain_filter, const char *result_filter,
 840                                    struct drsuapi_DsNameInfo1 *info1,
 841                                    int scope, struct ldb_dn *search_dn)
 842 {
 843         int ldb_ret;
 844         struct ldb_result *domain_res = NULL;
 845         const char * const *domain_attrs;
 846         const char * const *result_attrs;
 847         struct ldb_message **result_res = NULL;
 848         struct ldb_message *result = NULL;
 849         int i;
 850         char *p;
 851         struct ldb_dn *partitions_basedn = samdb_partitions_dn(sam_ctx, mem_ctx);
 852
 853         const char * const _domain_attrs_1779[] = { "ncName", "dnsRoot", NULL};
 854         const char * const _result_attrs_null[] = { NULL };
 855
 856         const char * const _domain_attrs_canonical[] = { "ncName", "dnsRoot", NULL};
 857         const char * const _result_attrs_canonical[] = { "canonicalName", NULL };
 858
 859         const char * const _domain_attrs_nt4[] = { "ncName", "dnsRoot", "nETBIOSName", NULL};
 860         const char * const _result_attrs_nt4[] = { "sAMAccountName", "objectSid", "objectClass", NULL};
 861
 862         const char * const _domain_attrs_guid[] = { "ncName", "dnsRoot", NULL};
 863         const char * const _result_attrs_guid[] = { "objectGUID", NULL};
 864
 865         const char * const _domain_attrs_display[] = { "ncName", "dnsRoot", NULL};
 866         const char * const _result_attrs_display[] = { "displayName", "samAccountName", NULL};
 867
 868         const char * const _domain_attrs_none[] = { "ncName", "dnsRoot" , NULL};
 869         const char * const _result_attrs_none[] = { NULL};
 870
 871         /* here we need to set the attrs lists for domain and result lookups */
 872         switch (format_desired) {
 873         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779:
 874         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 875                 domain_attrs = _domain_attrs_1779;
 876                 result_attrs = _result_attrs_null;
 877                 break;
 878         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 879                 domain_attrs = _domain_attrs_canonical;
 880                 result_attrs = _result_attrs_canonical;
 881                 break;
 882         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT:
 883                 domain_attrs = _domain_attrs_nt4;
 884                 result_attrs = _result_attrs_nt4;
 885                 break;
 886         case DRSUAPI_DS_NAME_FORMAT_GUID:
 887                 domain_attrs = _domain_attrs_guid;
 888                 result_attrs = _result_attrs_guid;
 889                 break;
 890         case DRSUAPI_DS_NAME_FORMAT_DISPLAY:
 891                 domain_attrs = _domain_attrs_display;
 892                 result_attrs = _result_attrs_display;
 893                 break;
 894         default:
 895                 domain_attrs = _domain_attrs_none;
 896                 result_attrs = _result_attrs_none;
 897                 break;
 898         }
 899
 900         if (domain_filter) {
 901                 /* if we have a domain_filter look it up and set the result_basedn and the dns_domain_name */
 902                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 903                                              partitions_basedn,
 904                                              LDB_SCOPE_ONELEVEL,
 905                                              domain_attrs,
 906                                              "%s", domain_filter);
 907
 908                 if (ldb_ret != LDB_SUCCESS) {
 909                         DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 910                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 911                         return WERR_OK;
 912                 }
 913
 914                 switch (domain_res->count) {
 915                 case 1:
 916                         break;
 917                 case 0:
 918                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 919                         return WERR_OK;
 920                 default:
 921                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 922                         return WERR_OK;
 923                 }
 924
 925                 info1->dns_domain_name  = ldb_msg_find_attr_as_string(domain_res->msgs[0], "dnsRoot", NULL);
 926                 W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
 927                 info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 928         } else {
 929                 info1->dns_domain_name  = NULL;
 930                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 931         }
 932
 933         if (result_filter) {
 934                 int ret;
 935                 struct ldb_result *res;
 936                 uint32_t dsdb_flags = 0;
 937                 struct ldb_dn *real_search_dn = NULL;
 938                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 939
 940                 /*
 941                  * From 4.1.4.2.11 of MS-DRSR
 942                  * if DS_NAME_FLAG_GCVERIFY in flags then
 943                  * rt := select all O from all
 944                  * where attrValue in GetAttrVals(O, att, false)
 945                  * else
 946                  * rt := select all O from subtree DefaultNC()
 947                  * where attrValue in GetAttrVals(O, att, false)
 948                  * endif
 949                  * return rt
 950                  */
 951                 if (format_flags & DRSUAPI_DS_NAME_FLAG_GCVERIFY ||
 952                     format_offered == DRSUAPI_DS_NAME_FORMAT_GUID)
 953                 {
 954                         dsdb_flags = DSDB_SEARCH_SEARCH_ALL_PARTITIONS;
 955                 } else if (domain_res) {
 956                         if (!search_dn) {
 957                                 struct ldb_dn *tmp_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
 958                                 real_search_dn = tmp_dn;
 959                         } else {
 960                                 real_search_dn = search_dn;
 961                         }
 962                 } else {
 963                         real_search_dn = ldb_get_default_basedn(sam_ctx);
 964                 }
 965                 if (format_desired == DRSUAPI_DS_NAME_FORMAT_GUID){
 966                          dsdb_flags |= DSDB_SEARCH_SHOW_RECYCLED;
 967                 }
 968                 /* search with the 'phantom root' flag */
 969                 ret = dsdb_search(sam_ctx, mem_ctx, &res,
 970                                   real_search_dn,
 971                                   scope,
 972                                   result_attrs,
 973                                   dsdb_flags,
 974                                   "%s", result_filter);
 975                 if (ret != LDB_SUCCESS) {
 976                         DEBUG(2, ("DsCrackNameOneFilter search from '%s' with flags 0x%08x failed: %s\n",
 977                                   ldb_dn_get_linearized(real_search_dn),
 978                                   dsdb_flags,
 979                                   ldb_errstring(sam_ctx)));
 980                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 981                         return WERR_OK;
 982                 }
 983
 984                 ldb_ret = res->count;
 985                 result_res = res->msgs;
 986         } else if (format_offered == DRSUAPI_DS_NAME_FORMAT_FQDN_1779) {
 987                 ldb_ret = gendb_search_dn(sam_ctx, mem_ctx, name_dn, &result_res,
 988                                           result_attrs);
 989         } else if (domain_res) {
 990                 name_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
 991                 ldb_ret = gendb_search_dn(sam_ctx, mem_ctx, name_dn, &result_res,
 992                                           result_attrs);
 993         } else {
 994                 /* Can't happen */
 995                 DEBUG(0, ("LOGIC ERROR: DsCrackNameOneFilter domain ref search not available: This can't happen...\n"));
 996                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 997                 return WERR_OK;
 998         }
 999
1000         switch (ldb_ret) {
1001         case 1:
1002                 result = result_res[0];
1003                 break;
1004         case 0:
1005                 switch (format_offered) {
1006                 case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL:
1007                         return DsCrackNameSPNAlias(sam_ctx, mem_ctx,
1008                                                    smb_krb5_context,
1009                                                    format_flags, format_offered, format_desired,
1010                                                    name, info1);
1011
1012                 case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL:
1013                         return DsCrackNameUPN(sam_ctx, mem_ctx, smb_krb5_context,
1014                                               format_flags, format_offered, format_desired,
1015                                               name, info1);
1016                 default:
1017                         break;
1018                 }
1019                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1020                 return WERR_OK;
1021         case -1:
1022                 DEBUG(2, ("DsCrackNameOneFilter result search failed: %s\n", ldb_errstring(sam_ctx)));
1023                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1024                 return WERR_OK;
1025         default:
1026                 switch (format_offered) {
1027                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
1028                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
1029                 {
1030                         const char *canonical_name = NULL; /* Not required, but we get warnings... */
1031                         /* We may need to manually filter further */
1032                         for (i = 0; i < ldb_ret; i++) {
1033                                 switch (format_offered) {
1034                                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
1035                                         canonical_name = ldb_dn_canonical_string(mem_ctx, result_res[i]->dn);
1036                                         break;
1037                                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
1038                                         canonical_name = ldb_dn_canonical_ex_string(mem_ctx, result_res[i]->dn);
1039                                         break;
1040                                 default:
1041                                         break;
1042                                 }
1043                                 if (strcasecmp_m(canonical_name, name) == 0) {
1044                                         result = result_res[i];
1045                                         break;
1046                                 }
1047                         }
1048                         if (!result) {
1049                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1050                                 return WERR_OK;
1051                         }
1052                 }
1053                 /* FALL TROUGH */
1054                 default:
1055                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1056                         return WERR_OK;
1057                 }
1058         }
1059
1060         info1->dns_domain_name = ldb_dn_canonical_string(mem_ctx, result->dn);
1061         W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
1062         p = strchr(info1->dns_domain_name, '/');
1063         if (p) {
1064                 p[0] = '\0';
1065         }
1066
1067         /* here we can use result and domain_res[0] */
1068         switch (format_desired) {
1069         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
1070                 info1->result_name      = ldb_dn_alloc_linearized(mem_ctx, result->dn);
1071                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1072
1073                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1074                 return WERR_OK;
1075         }
1076         case DRSUAPI_DS_NAME_FORMAT_CANONICAL: {
1077                 info1->result_name      = ldb_msg_find_attr_as_string(result, "canonicalName", NULL);
1078                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1079                 return WERR_OK;
1080         }
1081         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX: {
1082                 /* Not in the virtual ldb attribute */
1083                 return DsCrackNameOneSyntactical(mem_ctx,
1084                                                  DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1085                                                  DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX,
1086                                                  result->dn, name, info1);
1087         }
1088         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
1089
1090                 const struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, result, "objectSid");
1091                 const char *_acc = "", *_dom = "";
1092                 if (sid == NULL) {
1093                         info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1094                         return WERR_OK;
1095                 }
1096
1097                 if (samdb_find_attribute(sam_ctx, result, "objectClass",
1098                                          "domain")) {
1099                         /* This can also find a DomainDNSZones entry,
1100                          * but it won't have the SID we just
1101                          * checked.  */
1102                         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
1103                                                      partitions_basedn,
1104                                                      LDB_SCOPE_ONELEVEL,
1105                                                      domain_attrs,
1106                                                      "(ncName=%s)", ldb_dn_get_linearized(result->dn));
1107
1108                         if (ldb_ret != LDB_SUCCESS) {
1109                                 DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
1110                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1111                                 return WERR_OK;
1112                         }
1113
1114                         switch (domain_res->count) {
1115                         case 1:
1116                                 break;
1117                         case 0:
1118                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1119                                 return WERR_OK;
1120                         default:
1121                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1122                                 return WERR_OK;
1123                         }
1124                         _dom = ldb_msg_find_attr_as_string(domain_res->msgs[0], "nETBIOSName", NULL);
1125                         W_ERROR_HAVE_NO_MEMORY(_dom);
1126                 } else {
1127                         _acc = ldb_msg_find_attr_as_string(result, "sAMAccountName", NULL);
1128                         if (!_acc) {
1129                                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1130                                 return WERR_OK;
1131                         }
1132                         if (dom_sid_in_domain(dom_sid_parse_talloc(mem_ctx, SID_BUILTIN), sid)) {
1133                                 _dom = "BUILTIN";
1134                         } else {
1135                                 const char *attrs[] = { NULL };
1136                                 struct ldb_result *domain_res2;
1137                                 struct dom_sid *dom_sid = dom_sid_dup(mem_ctx, sid);
1138                                 if (!dom_sid) {
1139                                         return WERR_OK;
1140                                 }
1141                                 dom_sid->num_auths--;
1142                                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
1143                                                              NULL,
1144                                                              LDB_SCOPE_BASE,
1145                                                              attrs,
1146                                                              "(&(objectSid=%s)(objectClass=domain))",
1147                                                              ldap_encode_ndr_dom_sid(mem_ctx, dom_sid));
1148
1149                                 if (ldb_ret != LDB_SUCCESS) {
1150                                         DEBUG(2, ("DsCrackNameOneFilter domain search failed: %s\n", ldb_errstring(sam_ctx)));
1151                                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1152                                         return WERR_OK;
1153                                 }
1154
1155                                 switch (domain_res->count) {
1156                                 case 1:
1157                                         break;
1158                                 case 0:
1159                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1160                                         return WERR_OK;
1161                                 default:
1162                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1163                                         return WERR_OK;
1164                                 }
1165
1166                                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res2,
1167                                                              partitions_basedn,
1168                                                              LDB_SCOPE_ONELEVEL,
1169                                                              domain_attrs,
1170                                                              "(ncName=%s)", ldb_dn_get_linearized(domain_res->msgs[0]->dn));
1171
1172                                 if (ldb_ret != LDB_SUCCESS) {
1173                                         DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
1174                                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1175                                         return WERR_OK;
1176                                 }
1177
1178                                 switch (domain_res2->count) {
1179                                 case 1:
1180                                         break;
1181                                 case 0:
1182                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1183                                         return WERR_OK;
1184                                 default:
1185                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1186                                         return WERR_OK;
1187                                 }
1188                                 _dom = ldb_msg_find_attr_as_string(domain_res2->msgs[0], "nETBIOSName", NULL);
1189                                 W_ERROR_HAVE_NO_MEMORY(_dom);
1190                         }
1191                 }
1192
1193                 info1->result_name      = talloc_asprintf(mem_ctx, "%s\\%s", _dom, _acc);
1194                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1195
1196                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1197                 return WERR_OK;
1198         }
1199         case DRSUAPI_DS_NAME_FORMAT_GUID: {
1200                 struct GUID guid;
1201
1202                 guid = samdb_result_guid(result, "objectGUID");
1203
1204                 info1->result_name      = GUID_string2(mem_ctx, &guid);
1205                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1206
1207                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1208                 return WERR_OK;
1209         }
1210         case DRSUAPI_DS_NAME_FORMAT_DISPLAY: {
1211                 info1->result_name      = ldb_msg_find_attr_as_string(result, "displayName", NULL);
1212                 if (!info1->result_name) {
1213                         info1->result_name      = ldb_msg_find_attr_as_string(result, "sAMAccountName", NULL);
1214                 }
1215                 if (!info1->result_name) {
1216                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1217                 } else {
1218                         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
1219                 }
1220                 return WERR_OK;
1221         }
1222         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
1223                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1224                 return WERR_OK;
1225         }
1226         case DRSUAPI_DS_NAME_FORMAT_DNS_DOMAIN:
1227         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
1228                 info1->dns_domain_name = NULL;
1229                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1230                 return WERR_OK;
1231         }
1232         default:
1233                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1234                 return WERR_OK;
1235         }
1236 }
1237
1238 /* Given a user Principal Name (such as foo@bar.com),
1239  * return the user and domain DNs.  This is used in the KDC to then
1240  * return the Keys and evaluate policy */
1241
1242 NTSTATUS crack_user_principal_name(struct ldb_context *sam_ctx,
1243                                    TALLOC_CTX *mem_ctx,
1244                                    const char *user_principal_name,
1245                                    struct ldb_dn **user_dn,
1246                                    struct ldb_dn **domain_dn)
1247 {
1248         WERROR werr;
1249         struct drsuapi_DsNameInfo1 info1;
1250         werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1251                                   DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
1252                                   DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1253                                   user_principal_name,
1254                                   &info1);
1255         if (!W_ERROR_IS_OK(werr)) {
1256                 return werror_to_ntstatus(werr);
1257         }
1258         switch (info1.status) {
1259         case DRSUAPI_DS_NAME_STATUS_OK:
1260                 break;
1261         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1262         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1263         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1264                 return NT_STATUS_NO_SUCH_USER;
1265         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1266         default:
1267                 return NT_STATUS_UNSUCCESSFUL;
1268         }
1269
1270         *user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1271
1272         if (domain_dn) {
1273                 werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1274                                           DRSUAPI_DS_NAME_FORMAT_CANONICAL,
1275                                           DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1276                                           talloc_asprintf(mem_ctx, "%s/",
1277                                                           info1.dns_domain_name),
1278                                           &info1);
1279                 if (!W_ERROR_IS_OK(werr)) {
1280                         return werror_to_ntstatus(werr);
1281                 }
1282                 switch (info1.status) {
1283                 case DRSUAPI_DS_NAME_STATUS_OK:
1284                         break;
1285                 case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1286                 case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1287                 case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1288                         return NT_STATUS_NO_SUCH_USER;
1289                 case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1290                 default:
1291                         return NT_STATUS_UNSUCCESSFUL;
1292                 }
1293
1294                 *domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1295         }
1296
1297         return NT_STATUS_OK;
1298 }
1299
1300 /* Given a Service Principal Name (such as host/foo.bar.com@BAR.COM),
1301  * return the user and domain DNs.  This is used in the KDC to then
1302  * return the Keys and evaluate policy */
1303
1304 NTSTATUS crack_service_principal_name(struct ldb_context *sam_ctx,
1305                                       TALLOC_CTX *mem_ctx,
1306                                       const char *service_principal_name,
1307                                       struct ldb_dn **user_dn,
1308                                       struct ldb_dn **domain_dn)
1309 {
1310         WERROR werr;
1311         struct drsuapi_DsNameInfo1 info1;
1312         werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1313                                   DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
1314                                   DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1315                                   service_principal_name,
1316                                   &info1);
1317         if (!W_ERROR_IS_OK(werr)) {
1318                 return werror_to_ntstatus(werr);
1319         }
1320         switch (info1.status) {
1321         case DRSUAPI_DS_NAME_STATUS_OK:
1322                 break;
1323         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1324         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1325         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1326                 return NT_STATUS_NO_SUCH_USER;
1327         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1328         default:
1329                 return NT_STATUS_UNSUCCESSFUL;
1330         }
1331
1332         *user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1333
1334         if (domain_dn) {
1335                 werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1336                                           DRSUAPI_DS_NAME_FORMAT_CANONICAL,
1337                                           DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1338                                           talloc_asprintf(mem_ctx, "%s/",
1339                                                           info1.dns_domain_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                 *domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1357         }
1358
1359         return NT_STATUS_OK;
1360 }
1361
1362 NTSTATUS crack_name_to_nt4_name(TALLOC_CTX *mem_ctx,
1363                                 struct tevent_context *ev_ctx,
1364                                 struct loadparm_context *lp_ctx,
1365                                 enum drsuapi_DsNameFormat format_offered,
1366                                 const char *name,
1367                                 const char **nt4_domain, const char **nt4_account)
1368 {
1369         WERROR werr;
1370         struct drsuapi_DsNameInfo1 info1;
1371         struct ldb_context *ldb;
1372         char *p;
1373
1374         /* Handle anonymous bind */
1375         if (!name || !*name) {
1376                 *nt4_domain = "";
1377                 *nt4_account = "";
1378                 return NT_STATUS_OK;
1379         }
1380
1381         ldb = samdb_connect(mem_ctx, ev_ctx, lp_ctx, system_session(lp_ctx), 0);
1382         if (ldb == NULL) {
1383                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1384         }
1385
1386         werr = DsCrackNameOneName(ldb, mem_ctx, 0,
1387                                   format_offered,
1388                                   DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT,
1389                                   name,
1390                                   &info1);
1391         if (!W_ERROR_IS_OK(werr)) {
1392                 return werror_to_ntstatus(werr);
1393         }
1394         switch (info1.status) {
1395         case DRSUAPI_DS_NAME_STATUS_OK:
1396                 break;
1397         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1398         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1399         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1400                 return NT_STATUS_NO_SUCH_USER;
1401         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1402         default:
1403                 return NT_STATUS_UNSUCCESSFUL;
1404         }
1405
1406         *nt4_domain = talloc_strdup(mem_ctx, info1.result_name);
1407         if (*nt4_domain == NULL) {
1408                 return NT_STATUS_NO_MEMORY;
1409         }
1410
1411         p = strchr(*nt4_domain, '\\');
1412         if (!p) {
1413                 return NT_STATUS_INVALID_PARAMETER;
1414         }
1415         p[0] = '\0';
1416
1417         *nt4_account = talloc_strdup(mem_ctx, &p[1]);
1418         if (*nt4_account == NULL) {
1419                 return NT_STATUS_NO_MEMORY;
1420         }
1421
1422         return NT_STATUS_OK;
1423 }
1424
1425 NTSTATUS crack_auto_name_to_nt4_name(TALLOC_CTX *mem_ctx,
1426                                      struct tevent_context *ev_ctx,
1427                                      struct loadparm_context *lp_ctx,
1428                                      const char *name,
1429                                      const char **nt4_domain,
1430                                      const char **nt4_account)
1431 {
1432         enum drsuapi_DsNameFormat format_offered = DRSUAPI_DS_NAME_FORMAT_UNKNOWN;
1433
1434         /* Handle anonymous bind */
1435         if (!name || !*name) {
1436                 *nt4_domain = "";
1437                 *nt4_account = "";
1438                 return NT_STATUS_OK;
1439         }
1440
1441         if (strchr_m(name, '=')) {
1442                 format_offered = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
1443         } else if (strchr_m(name, '@')) {
1444                 format_offered = DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL;
1445         } else if (strchr_m(name, '\\')) {
1446                 format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
1447         } else if (strchr_m(name, '/')) {
1448                 format_offered = DRSUAPI_DS_NAME_FORMAT_CANONICAL;
1449         } else {
1450                 return NT_STATUS_NO_SUCH_USER;
1451         }
1452
1453         return crack_name_to_nt4_name(mem_ctx, ev_ctx, lp_ctx, format_offered, name, nt4_domain, nt4_account);
1454 }
1455
1456
1457 WERROR dcesrv_drsuapi_ListRoles(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1458                                 const struct drsuapi_DsNameRequest1 *req1,
1459                                 struct drsuapi_DsNameCtr1 **ctr1)
1460 {
1461         struct drsuapi_DsNameInfo1 *names;
1462         uint32_t i;
1463         uint32_t count = 5;/*number of fsmo role owners we are going to return*/
1464
1465         *ctr1 = talloc(mem_ctx, struct drsuapi_DsNameCtr1);
1466         W_ERROR_HAVE_NO_MEMORY(*ctr1);
1467         names = talloc_array(mem_ctx, struct drsuapi_DsNameInfo1, count);
1468         W_ERROR_HAVE_NO_MEMORY(names);
1469
1470         for (i = 0; i < count; i++) {
1471                 WERROR werr;
1472                 struct ldb_dn *role_owner_dn, *fsmo_role_dn, *server_dn;
1473                 werr = dsdb_get_fsmo_role_info(mem_ctx, sam_ctx, i,
1474                                                &fsmo_role_dn, &role_owner_dn);
1475                 if(!W_ERROR_IS_OK(werr)) {
1476                         return werr;
1477                 }
1478                 server_dn = ldb_dn_copy(mem_ctx, role_owner_dn);
1479                 ldb_dn_remove_child_components(server_dn, 1);
1480                 names[i].status = DRSUAPI_DS_NAME_STATUS_OK;
1481                 names[i].dns_domain_name = samdb_dn_to_dnshostname(sam_ctx, mem_ctx,
1482                                                                    server_dn);
1483                 if(!names[i].dns_domain_name) {
1484                         DEBUG(4, ("list_roles: Failed to find dNSHostName for server %s\n",
1485                                   ldb_dn_get_linearized(server_dn)));
1486                 }
1487                 names[i].result_name = talloc_strdup(mem_ctx, ldb_dn_get_linearized(role_owner_dn));
1488         }
1489
1490         (*ctr1)->count = count;
1491         (*ctr1)->array = names;
1492
1493         return WERR_OK;
1494 }
1495
1496 WERROR dcesrv_drsuapi_CrackNamesByNameFormat(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1497                                              const struct drsuapi_DsNameRequest1 *req1,
1498                                              struct drsuapi_DsNameCtr1 **ctr1)
1499 {
1500         struct drsuapi_DsNameInfo1 *names;
1501         uint32_t i, count;
1502         WERROR status;
1503
1504         *ctr1 = talloc_zero(mem_ctx, struct drsuapi_DsNameCtr1);
1505         W_ERROR_HAVE_NO_MEMORY(*ctr1);
1506
1507         count = req1->count;
1508         names = talloc_array(mem_ctx, struct drsuapi_DsNameInfo1, count);
1509         W_ERROR_HAVE_NO_MEMORY(names);
1510
1511         for (i=0; i < count; i++) {
1512                 status = DsCrackNameOneName(sam_ctx, mem_ctx,
1513                                             req1->format_flags,
1514                                             req1->format_offered,
1515                                             req1->format_desired,
1516                                             req1->names[i].str,
1517                                             &names[i]);
1518                 if (!W_ERROR_IS_OK(status)) {
1519                         return status;
1520                 }
1521         }
1522
1523         (*ctr1)->count = count;
1524         (*ctr1)->array = names;
1525
1526         return WERR_OK;
1527 }
1528
1529 WERROR dcesrv_drsuapi_ListInfoServer(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1530                                      const struct drsuapi_DsNameRequest1 *req1,
1531                                      struct drsuapi_DsNameCtr1 **_ctr1)
1532 {
1533         struct drsuapi_DsNameInfo1 *names;
1534         struct ldb_result *res;
1535         struct ldb_dn *server_dn, *dn;
1536         struct drsuapi_DsNameCtr1 *ctr1;
1537         int ret, i;
1538         const char *str;
1539         const char *attrs[] = {
1540                 "dn",
1541                 "dNSHostName",
1542                 "serverReference",
1543                 NULL
1544         };
1545
1546         *_ctr1 = NULL;
1547
1548         ctr1 = talloc_zero(mem_ctx, struct drsuapi_DsNameCtr1);
1549         W_ERROR_HAVE_NO_MEMORY(ctr1);
1550
1551         /*
1552          * No magic value here, we have to return 3 entries according to the
1553          * MS-DRSR.pdf
1554          */
1555         ctr1->count = 3;
1556         names = talloc_zero_array(ctr1, struct drsuapi_DsNameInfo1,
1557                                   ctr1->count);
1558         W_ERROR_HAVE_NO_MEMORY(names);
1559         ctr1->array = names;
1560
1561         for (i=0; i < ctr1->count; i++) {
1562                 names[i].status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1563         }
1564         *_ctr1 = ctr1;
1565
1566         if (req1->count != 1) {
1567                 DEBUG(1, ("Expected a count of 1 for the ListInfoServer crackname \n"));
1568                 return WERR_OK;
1569         }
1570
1571         if (req1->names[0].str == NULL) {
1572                 return WERR_OK;
1573         }
1574
1575         server_dn = ldb_dn_new(mem_ctx, sam_ctx, req1->names[0].str);
1576         W_ERROR_HAVE_NO_MEMORY(server_dn);
1577
1578         ret = ldb_search(sam_ctx, mem_ctx, &res, server_dn, LDB_SCOPE_ONELEVEL,
1579                          NULL, "(objectClass=nTDSDSA)");
1580
1581         if (ret != LDB_SUCCESS) {
1582                 DEBUG(1, ("Search for objectClass=nTDSDSA "
1583                           "returned less than 1 objects\n"));
1584                 return WERR_OK;
1585         }
1586
1587         if (res->count != 1) {
1588                 DEBUG(1, ("Search for objectClass=nTDSDSA "
1589                           "returned less than 1 objects\n"));
1590                 return WERR_OK;
1591         }
1592
1593         if (res->msgs[0]->dn) {
1594                 names[0].result_name = ldb_dn_alloc_linearized(names, res->msgs[0]->dn);
1595                 W_ERROR_HAVE_NO_MEMORY(names[0].result_name);
1596                 names[0].status = DRSUAPI_DS_NAME_STATUS_OK;
1597         }
1598
1599         talloc_free(res);
1600
1601         ret = ldb_search(sam_ctx, mem_ctx, &res, server_dn, LDB_SCOPE_BASE,
1602                          attrs, "(objectClass=*)");
1603         if (ret != LDB_SUCCESS) {
1604                 DEBUG(1, ("Search for objectClass=* on dn %s"
1605                           "returned %s\n", req1->names[0].str,
1606                           ldb_strerror(ret)));
1607                 return WERR_OK;
1608         }
1609
1610         if (res->count != 1) {
1611                 DEBUG(1, ("Search for objectClass=* on dn %s"
1612                           "returned less than 1 objects\n", req1->names[0].str));
1613                 return WERR_OK;
1614         }
1615
1616         str = ldb_msg_find_attr_as_string(res->msgs[0], "dNSHostName", NULL);
1617         if (str != NULL) {
1618                 names[1].result_name = talloc_strdup(names, str);
1619                 W_ERROR_HAVE_NO_MEMORY(names[1].result_name);
1620                 names[1].status = DRSUAPI_DS_NAME_STATUS_OK;
1621         }
1622
1623         dn = ldb_msg_find_attr_as_dn(sam_ctx, mem_ctx, res->msgs[0], "serverReference");
1624         if (dn != NULL) {
1625                 names[2].result_name = ldb_dn_alloc_linearized(names, dn);
1626                 W_ERROR_HAVE_NO_MEMORY(names[2].result_name);
1627                 names[2].status = DRSUAPI_DS_NAME_STATUS_OK;
1628         }
1629
1630         talloc_free(dn);
1631         talloc_free(res);
1632
1633         return WERR_OK;
1634 }