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         /*
 327          * The important thing here is that a samAccountName may have
 328          * a space in it, and this must not be kerberos escaped to
 329          * match this filter, so we specify
 330          * KRB5_PRINCIPAL_UNPARSE_DISPLAY
 331          */
 332         ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
 333                                       KRB5_PRINCIPAL_UNPARSE_NO_REALM |
 334                                       KRB5_PRINCIPAL_UNPARSE_DISPLAY,
 335                                       &unparsed_name_short);
 336         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 337
 338         if (ret) {
 339                 free(unparsed_name_short);
 340                 return WERR_NOMEM;
 341         }
 342
 343         /* This may need to be extended for more userPrincipalName variations */
 344         result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(samAccountName=%s))",
 345                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short));
 346
 347         domain_filter = talloc_asprintf(mem_ctx, "(distinguishedName=%s)", ldb_dn_get_linearized(domain_res->msgs[0]->dn));
 348
 349         if (!result_filter || !domain_filter) {
 350                 free(unparsed_name_short);
 351                 return WERR_NOMEM;
 352         }
 353         status = DsCrackNameOneFilter(sam_ctx, mem_ctx,
 354                                       smb_krb5_context,
 355                                       format_flags, format_offered, format_desired,
 356                                       NULL, unparsed_name_short, domain_filter, result_filter,
 357                                       info1, LDB_SCOPE_SUBTREE, NULL);
 358         free(unparsed_name_short);
 359
 360         return status;
 361 }
 362
 363 /*
 364  * This function will workout the filtering parameter in order to be able to do
 365  * the adapted search when the incomming format is format_functional.
 366  * This boils down to defining the search_dn (passed as pointer to ldb_dn *) and the
 367  * ldap filter request.
 368  * Main input parameters are:
 369  * * name, which is the portion of the functional name after the
 370  * first '/'.
 371  * * domain_filter, which is a ldap search filter used to find the NC DN given the
 372  * function name to crack.
 373  */
 374 static WERROR get_format_functional_filtering_param(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 375                         char *name, struct drsuapi_DsNameInfo1 *info1,
 376                         struct ldb_dn **psearch_dn, const char *domain_filter, const char **presult_filter)
 377 {
 378         struct ldb_result *domain_res = NULL;
 379         const char * const domain_attrs[] = {"ncName", NULL};
 380         struct ldb_dn *partitions_basedn = samdb_partitions_dn(sam_ctx, mem_ctx);
 381         int ldb_ret;
 382         char *account,  *s, *result_filter = NULL;
 383         struct ldb_dn *search_dn = NULL;
 384
 385         *psearch_dn = NULL;
 386         *presult_filter = NULL;
 387
 388         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 389                                 partitions_basedn,
 390                                 LDB_SCOPE_ONELEVEL,
 391                                 domain_attrs,
 392                                 "%s", domain_filter);
 393
 394         if (ldb_ret != LDB_SUCCESS) {
 395                 DEBUG(2, ("DsCrackNameOne domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 396                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 397                 return WERR_FOOBAR;
 398         }
 399
 400         if (domain_res->count == 1) {
 401                 struct ldb_dn *tmp_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
 402                 const char * const name_attrs[] = {"name", NULL};
 403
 404                 account = name;
 405                 s = strchr(account, '/');
 406                 talloc_free(domain_res);
 407                 while(s) {
 408                         s[0] = '\0';
 409                         s++;
 410
 411                         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 412                                                 tmp_dn,
 413                                                 LDB_SCOPE_ONELEVEL,
 414                                                 name_attrs,
 415                                                 "name=%s", account);
 416
 417                         if (ldb_ret != LDB_SUCCESS) {
 418                                 DEBUG(2, ("DsCrackNameOne domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 419                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 420                                 return WERR_OK;
 421                         }
 422                         talloc_free(tmp_dn);
 423                         switch (domain_res->count) {
 424                         case 1:
 425                                 break;
 426                         case 0:
 427                                 talloc_free(domain_res);
 428                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 429                                 return WERR_OK;
 430                         default:
 431                                 talloc_free(domain_res);
 432                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 433                                 return WERR_OK;
 434                         }
 435
 436                         tmp_dn = talloc_steal(mem_ctx, domain_res->msgs[0]->dn);
 437                         talloc_free(domain_res);
 438                         search_dn = tmp_dn;
 439                         account = s;
 440                         s = strchr(account, '/');
 441                 }
 442                 account = ldb_binary_encode_string(mem_ctx, account);
 443                 W_ERROR_HAVE_NO_MEMORY(account);
 444                 result_filter = talloc_asprintf(mem_ctx, "(name=%s)",
 445                                                 account);
 446                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 447         }
 448         *psearch_dn = search_dn;
 449         *presult_filter = result_filter;
 450         return WERR_OK;
 451 }
 452
 453 /* Crack a single 'name', from format_offered into format_desired, returning the result in info1 */
 454
 455 WERROR DsCrackNameOneName(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 456                           uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 457                           enum drsuapi_DsNameFormat format_desired,
 458                           const char *name, struct drsuapi_DsNameInfo1 *info1)
 459 {
 460         krb5_error_code ret;
 461         const char *domain_filter = NULL;
 462         const char *result_filter = NULL;
 463         struct ldb_dn *name_dn = NULL;
 464         struct ldb_dn *search_dn = NULL;
 465
 466         struct smb_krb5_context *smb_krb5_context = NULL;
 467         int scope = LDB_SCOPE_SUBTREE;
 468
 469         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 470         info1->dns_domain_name = NULL;
 471         info1->result_name = NULL;
 472
 473         if (!name) {
 474                 return WERR_INVALID_PARAM;
 475         }
 476
 477         /* TODO: - fill the correct names in all cases!
 478          *       - handle format_flags
 479          */
 480         if (format_desired == DRSUAPI_DS_NAME_FORMAT_UNKNOWN) {
 481                 return WERR_OK;
 482         }
 483         /* here we need to set the domain_filter and/or the result_filter */
 484         switch (format_offered) {
 485         case DRSUAPI_DS_NAME_FORMAT_UNKNOWN:
 486         {
 487                 unsigned int i;
 488                 enum drsuapi_DsNameFormat formats[] = {
 489                         DRSUAPI_DS_NAME_FORMAT_FQDN_1779, DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
 490                         DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT, DRSUAPI_DS_NAME_FORMAT_CANONICAL,
 491                         DRSUAPI_DS_NAME_FORMAT_GUID, DRSUAPI_DS_NAME_FORMAT_DISPLAY,
 492                         DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
 493                         DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY,
 494                         DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX
 495                 };
 496                 WERROR werr;
 497                 for (i=0; i < ARRAY_SIZE(formats); i++) {
 498                         werr = DsCrackNameOneName(sam_ctx, mem_ctx, format_flags, formats[i], format_desired, name, info1);
 499                         if (!W_ERROR_IS_OK(werr)) {
 500                                 return werr;
 501                         }
 502                         if (info1->status != DRSUAPI_DS_NAME_STATUS_NOT_FOUND &&
 503                             (formats[i] != DRSUAPI_DS_NAME_FORMAT_CANONICAL ||
 504                              info1->status != DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR))
 505                         {
 506                                 return werr;
 507                         }
 508                 }
 509                 return werr;
 510         }
 511
 512         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 513         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 514         {
 515                 char *str, *s, *account;
 516                 scope = LDB_SCOPE_ONELEVEL;
 517
 518                 if (strlen(name) == 0) {
 519                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 520                         return WERR_OK;
 521                 }
 522
 523                 str = talloc_strdup(mem_ctx, name);
 524                 W_ERROR_HAVE_NO_MEMORY(str);
 525
 526                 if (format_offered == DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX) {
 527                         /* Look backwards for the \n, and replace it with / */
 528                         s = strrchr(str, '\n');
 529                         if (!s) {
 530                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 531                                 return WERR_OK;
 532                         }
 533                         s[0] = '/';
 534                 }
 535
 536                 s = strchr(str, '/');
 537                 if (!s) {
 538                         /* there must be at least one / */
 539                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 540                         return WERR_OK;
 541                 }
 542
 543                 s[0] = '\0';
 544                 s++;
 545
 546                 domain_filter = talloc_asprintf(mem_ctx, "(&(objectClass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))",
 547                                                 ldb_binary_encode_string(mem_ctx, str),
 548                                                 LDB_OID_COMPARATOR_AND,
 549                                                 SYSTEM_FLAG_CR_NTDS_DOMAIN);
 550                 W_ERROR_HAVE_NO_MEMORY(domain_filter);
 551
 552                 /* There may not be anything after the domain component (search for the domain itself) */
 553                 account = s;
 554                 if (account && *account) {
 555                         WERROR werr = get_format_functional_filtering_param(sam_ctx,
 556                                                                                 mem_ctx,
 557                                                                                 account,
 558                                                                                 info1,
 559                                                                                 &search_dn,
 560                                                                                 domain_filter,
 561                                                                                 &result_filter);
 562                         if (!W_ERROR_IS_OK(werr)) {
 563                                 return werr;
 564                         }
 565                         if (info1->status != DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR)
 566                                 return WERR_OK;
 567                 }
 568                 break;
 569         }
 570         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
 571                 char *p;
 572                 char *domain;
 573                 const char *account = NULL;
 574
 575                 domain = talloc_strdup(mem_ctx, name);
 576                 W_ERROR_HAVE_NO_MEMORY(domain);
 577
 578                 p = strchr(domain, '\\');
 579                 if (!p) {
 580                         /* invalid input format */
 581                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 582                         return WERR_OK;
 583                 }
 584                 p[0] = '\0';
 585
 586                 if (p[1]) {
 587                         account = &p[1];
 588                 }
 589
 590                 domain_filter = talloc_asprintf(mem_ctx,
 591                                                 "(&(objectClass=crossRef)(netbiosName=%s)(systemFlags:%s:=%u))",
 592                                                 ldb_binary_encode_string(mem_ctx, domain),
 593                                                 LDB_OID_COMPARATOR_AND,
 594                                                 SYSTEM_FLAG_CR_NTDS_DOMAIN);
 595                 W_ERROR_HAVE_NO_MEMORY(domain_filter);
 596                 if (account) {
 597                         result_filter = talloc_asprintf(mem_ctx, "(sAMAccountName=%s)",
 598                                                         ldb_binary_encode_string(mem_ctx, account));
 599                         W_ERROR_HAVE_NO_MEMORY(result_filter);
 600                 }
 601
 602                 talloc_free(domain);
 603                 break;
 604         }
 605
 606                 /* A LDAP DN as a string */
 607         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
 608                 domain_filter = NULL;
 609                 name_dn = ldb_dn_new(mem_ctx, sam_ctx, name);
 610                 if (! ldb_dn_validate(name_dn)) {
 611                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 612                         return WERR_OK;
 613                 }
 614                 break;
 615         }
 616
 617                 /* A GUID as a string */
 618         case DRSUAPI_DS_NAME_FORMAT_GUID: {
 619                 struct GUID guid;
 620                 char *ldap_guid;
 621                 NTSTATUS nt_status;
 622                 domain_filter = NULL;
 623
 624                 nt_status = GUID_from_string(name, &guid);
 625                 if (!NT_STATUS_IS_OK(nt_status)) {
 626                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 627                         return WERR_OK;
 628                 }
 629
 630                 ldap_guid = ldap_encode_ndr_GUID(mem_ctx, &guid);
 631                 if (!ldap_guid) {
 632                         return WERR_NOMEM;
 633                 }
 634                 result_filter = talloc_asprintf(mem_ctx, "(objectGUID=%s)",
 635                                                 ldap_guid);
 636                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 637                 break;
 638         }
 639         case DRSUAPI_DS_NAME_FORMAT_DISPLAY: {
 640                 domain_filter = NULL;
 641
 642                 result_filter = talloc_asprintf(mem_ctx, "(|(displayName=%s)(samAccountName=%s))",
 643                                                 ldb_binary_encode_string(mem_ctx, name),
 644                                                 ldb_binary_encode_string(mem_ctx, name));
 645                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 646                 break;
 647         }
 648
 649                 /* A S-1234-5678 style string */
 650         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
 651                 struct dom_sid *sid = dom_sid_parse_talloc(mem_ctx, name);
 652                 char *ldap_sid;
 653
 654                 domain_filter = NULL;
 655                 if (!sid) {
 656                         info1->dns_domain_name = NULL;
 657                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 658                         return WERR_OK;
 659                 }
 660                 ldap_sid = ldap_encode_ndr_dom_sid(mem_ctx,
 661                                                    sid);
 662                 if (!ldap_sid) {
 663                         return WERR_NOMEM;
 664                 }
 665                 result_filter = talloc_asprintf(mem_ctx, "(objectSid=%s)",
 666                                                 ldap_sid);
 667                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 668                 break;
 669         }
 670         case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL: {
 671                 krb5_principal principal;
 672                 char *unparsed_name;
 673
 674                 ret = smb_krb5_init_context(mem_ctx,
 675                                             (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
 676                                             &smb_krb5_context);
 677
 678                 if (ret) {
 679                         return WERR_NOMEM;
 680                 }
 681
 682                 /* Ensure we reject compleate junk first */
 683                 ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 684                 if (ret) {
 685                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 686                         return WERR_OK;
 687                 }
 688
 689                 domain_filter = NULL;
 690
 691                 /*
 692                  * By getting the unparsed name here, we ensure the
 693                  * escaping is removed correctly (and trust the client
 694                  * less).  The important thing here is that a
 695                  * userPrincipalName may have a space in it, and this
 696                  * must not be kerberos escaped to match this filter,
 697                  * so we specify KRB5_PRINCIPAL_UNPARSE_DISPLAY
 698                  */
 699                 ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context,
 700                                               principal,
 701                                               KRB5_PRINCIPAL_UNPARSE_DISPLAY,
 702                                               &unparsed_name);
 703                 if (ret) {
 704                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 705                         return WERR_NOMEM;
 706                 }
 707
 708                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 709
 710                 /* The ldb_binary_encode_string() here avoid LDAP filter injection attacks */
 711                 result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(userPrincipalName=%s))",
 712                                                 ldb_binary_encode_string(mem_ctx, unparsed_name));
 713
 714                 free(unparsed_name);
 715                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 716                 break;
 717         }
 718         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
 719                 krb5_principal principal;
 720                 char *unparsed_name_short;
 721                 const krb5_data *component;
 722                 char *service;
 723
 724                 ret = smb_krb5_init_context(mem_ctx,
 725                                             (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
 726                                             &smb_krb5_context);
 727
 728                 if (ret) {
 729                         return WERR_NOMEM;
 730                 }
 731
 732                 ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
 733                 if (ret == 0 &&
 734                     krb5_princ_size(smb_krb5_context->krb5_context,
 735                                                         principal) < 2) {
 736                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 737                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 738                         return WERR_OK;
 739                 } else if (ret == 0) {
 740                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 741                 }
 742                 ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
 743                                             KRB5_PRINCIPAL_PARSE_NO_REALM, &principal);
 744                 if (ret) {
 745                         return dns_domain_from_principal(mem_ctx, smb_krb5_context,
 746                                                          name, info1);
 747                 }
 748
 749                 domain_filter = NULL;
 750
 751                 ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
 752                                               KRB5_PRINCIPAL_UNPARSE_NO_REALM, &unparsed_name_short);
 753                 if (ret) {
 754                         krb5_free_principal(smb_krb5_context->krb5_context, principal);
 755                         return WERR_NOMEM;
 756                 }
 757
 758                 component = krb5_princ_component(smb_krb5_context->krb5_context,
 759                                                  principal, 0);
 760                 service = (char *)component->data;
 761                 if ((krb5_princ_size(smb_krb5_context->krb5_context,
 762                                                         principal) == 2) &&
 763                         (strcasecmp(service, "host") == 0)) {
 764                         /* the 'cn' attribute is just the leading part of the name */
 765                         char *computer_name;
 766                         component = krb5_princ_component(
 767                                                 smb_krb5_context->krb5_context,
 768                                                 principal, 1);
 769                         computer_name = talloc_strndup(mem_ctx, (char *)component->data,
 770                                                         strcspn((char *)component->data, "."));
 771                         if (computer_name == NULL) {
 772                                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 773                                 free(unparsed_name_short);
 774                                 return WERR_NOMEM;
 775                         }
 776
 777                         result_filter = talloc_asprintf(mem_ctx, "(|(&(servicePrincipalName=%s)(objectClass=user))(&(cn=%s)(objectClass=computer)))",
 778                                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short),
 779                                                         ldb_binary_encode_string(mem_ctx, computer_name));
 780                 } else {
 781                         result_filter = talloc_asprintf(mem_ctx, "(&(servicePrincipalName=%s)(objectClass=user))",
 782                                                         ldb_binary_encode_string(mem_ctx, unparsed_name_short));
 783                 }
 784                 krb5_free_principal(smb_krb5_context->krb5_context, principal);
 785                 free(unparsed_name_short);
 786                 W_ERROR_HAVE_NO_MEMORY(result_filter);
 787
 788                 break;
 789         }
 790         default: {
 791                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 792                 return WERR_OK;
 793         }
 794         }
 795
 796         if (format_flags & DRSUAPI_DS_NAME_FLAG_SYNTACTICAL_ONLY) {
 797                 return DsCrackNameOneSyntactical(mem_ctx, format_offered, format_desired,
 798                                                  name_dn, name, info1);
 799         }
 800
 801         return DsCrackNameOneFilter(sam_ctx, mem_ctx,
 802                                     smb_krb5_context,
 803                                     format_flags, format_offered, format_desired,
 804                                     name_dn, name,
 805                                     domain_filter, result_filter,
 806                                     info1, scope, search_dn);
 807 }
 808
 809 /* Subcase of CrackNames.  It is possible to translate a LDAP-style DN
 810  * (FQDN_1779) into a canoical name without actually searching the
 811  * database */
 812
 813 static WERROR DsCrackNameOneSyntactical(TALLOC_CTX *mem_ctx,
 814                                         enum drsuapi_DsNameFormat format_offered,
 815                                         enum drsuapi_DsNameFormat format_desired,
 816                                         struct ldb_dn *name_dn, const char *name,
 817                                         struct drsuapi_DsNameInfo1 *info1)
 818 {
 819         char *cracked;
 820         if (format_offered != DRSUAPI_DS_NAME_FORMAT_FQDN_1779) {
 821                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_SYNTACTICAL_MAPPING;
 822                 return WERR_OK;
 823         }
 824
 825         switch (format_desired) {
 826         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 827                 cracked = ldb_dn_canonical_string(mem_ctx, name_dn);
 828                 break;
 829         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 830                 cracked = ldb_dn_canonical_ex_string(mem_ctx, name_dn);
 831                 break;
 832         default:
 833                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_SYNTACTICAL_MAPPING;
 834                 return WERR_OK;
 835         }
 836         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
 837         info1->result_name      = cracked;
 838         if (!cracked) {
 839                 return WERR_NOMEM;
 840         }
 841
 842         return WERR_OK;
 843 }
 844
 845 /* Given a filter for the domain, and one for the result, perform the
 846  * ldb search. The format offered and desired flags change the
 847  * behaviours, including what attributes to return.
 848  *
 849  * The smb_krb5_context is required because we use the krb5 libs for principal parsing
 850  */
 851
 852 static WERROR DsCrackNameOneFilter(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
 853                                    struct smb_krb5_context *smb_krb5_context,
 854                                    uint32_t format_flags, enum drsuapi_DsNameFormat format_offered,
 855                                    enum drsuapi_DsNameFormat format_desired,
 856                                    struct ldb_dn *name_dn, const char *name,
 857                                    const char *domain_filter, const char *result_filter,
 858                                    struct drsuapi_DsNameInfo1 *info1,
 859                                    int scope, struct ldb_dn *search_dn)
 860 {
 861         int ldb_ret;
 862         struct ldb_result *domain_res = NULL;
 863         const char * const *domain_attrs;
 864         const char * const *result_attrs;
 865         struct ldb_message **result_res = NULL;
 866         struct ldb_message *result = NULL;
 867         int i;
 868         char *p;
 869         struct ldb_dn *partitions_basedn = samdb_partitions_dn(sam_ctx, mem_ctx);
 870
 871         const char * const _domain_attrs_1779[] = { "ncName", "dnsRoot", NULL};
 872         const char * const _result_attrs_null[] = { NULL };
 873
 874         const char * const _domain_attrs_canonical[] = { "ncName", "dnsRoot", NULL};
 875         const char * const _result_attrs_canonical[] = { "canonicalName", NULL };
 876
 877         const char * const _domain_attrs_nt4[] = { "ncName", "dnsRoot", "nETBIOSName", NULL};
 878         const char * const _result_attrs_nt4[] = { "sAMAccountName", "objectSid", "objectClass", NULL};
 879
 880         const char * const _domain_attrs_guid[] = { "ncName", "dnsRoot", NULL};
 881         const char * const _result_attrs_guid[] = { "objectGUID", NULL};
 882
 883         const char * const _domain_attrs_display[] = { "ncName", "dnsRoot", NULL};
 884         const char * const _result_attrs_display[] = { "displayName", "samAccountName", NULL};
 885
 886         const char * const _domain_attrs_none[] = { "ncName", "dnsRoot" , NULL};
 887         const char * const _result_attrs_none[] = { NULL};
 888
 889         /* here we need to set the attrs lists for domain and result lookups */
 890         switch (format_desired) {
 891         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779:
 892         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
 893                 domain_attrs = _domain_attrs_1779;
 894                 result_attrs = _result_attrs_null;
 895                 break;
 896         case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
 897                 domain_attrs = _domain_attrs_canonical;
 898                 result_attrs = _result_attrs_canonical;
 899                 break;
 900         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT:
 901                 domain_attrs = _domain_attrs_nt4;
 902                 result_attrs = _result_attrs_nt4;
 903                 break;
 904         case DRSUAPI_DS_NAME_FORMAT_GUID:
 905                 domain_attrs = _domain_attrs_guid;
 906                 result_attrs = _result_attrs_guid;
 907                 break;
 908         case DRSUAPI_DS_NAME_FORMAT_DISPLAY:
 909                 domain_attrs = _domain_attrs_display;
 910                 result_attrs = _result_attrs_display;
 911                 break;
 912         default:
 913                 domain_attrs = _domain_attrs_none;
 914                 result_attrs = _result_attrs_none;
 915                 break;
 916         }
 917
 918         if (domain_filter) {
 919                 /* if we have a domain_filter look it up and set the result_basedn and the dns_domain_name */
 920                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
 921                                              partitions_basedn,
 922                                              LDB_SCOPE_ONELEVEL,
 923                                              domain_attrs,
 924                                              "%s", domain_filter);
 925
 926                 if (ldb_ret != LDB_SUCCESS) {
 927                         DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
 928                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 929                         return WERR_OK;
 930                 }
 931
 932                 switch (domain_res->count) {
 933                 case 1:
 934                         break;
 935                 case 0:
 936                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 937                         return WERR_OK;
 938                 default:
 939                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
 940                         return WERR_OK;
 941                 }
 942
 943                 info1->dns_domain_name  = ldb_msg_find_attr_as_string(domain_res->msgs[0], "dnsRoot", NULL);
 944                 W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
 945                 info1->status           = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
 946         } else {
 947                 info1->dns_domain_name  = NULL;
 948                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 949         }
 950
 951         if (result_filter) {
 952                 int ret;
 953                 struct ldb_result *res;
 954                 uint32_t dsdb_flags = 0;
 955                 struct ldb_dn *real_search_dn = NULL;
 956                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
 957
 958                 /*
 959                  * From 4.1.4.2.11 of MS-DRSR
 960                  * if DS_NAME_FLAG_GCVERIFY in flags then
 961                  * rt := select all O from all
 962                  * where attrValue in GetAttrVals(O, att, false)
 963                  * else
 964                  * rt := select all O from subtree DefaultNC()
 965                  * where attrValue in GetAttrVals(O, att, false)
 966                  * endif
 967                  * return rt
 968                  */
 969                 if (format_flags & DRSUAPI_DS_NAME_FLAG_GCVERIFY ||
 970                     format_offered == DRSUAPI_DS_NAME_FORMAT_GUID)
 971                 {
 972                         dsdb_flags = DSDB_SEARCH_SEARCH_ALL_PARTITIONS;
 973                 } else if (domain_res) {
 974                         if (!search_dn) {
 975                                 struct ldb_dn *tmp_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
 976                                 real_search_dn = tmp_dn;
 977                         } else {
 978                                 real_search_dn = search_dn;
 979                         }
 980                 } else {
 981                         real_search_dn = ldb_get_default_basedn(sam_ctx);
 982                 }
 983                 if (format_desired == DRSUAPI_DS_NAME_FORMAT_GUID){
 984                          dsdb_flags |= DSDB_SEARCH_SHOW_RECYCLED;
 985                 }
 986                 /* search with the 'phantom root' flag */
 987                 ret = dsdb_search(sam_ctx, mem_ctx, &res,
 988                                   real_search_dn,
 989                                   scope,
 990                                   result_attrs,
 991                                   dsdb_flags,
 992                                   "%s", result_filter);
 993                 if (ret != LDB_SUCCESS) {
 994                         DEBUG(2, ("DsCrackNameOneFilter search from '%s' with flags 0x%08x failed: %s\n",
 995                                   ldb_dn_get_linearized(real_search_dn),
 996                                   dsdb_flags,
 997                                   ldb_errstring(sam_ctx)));
 998                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
 999                         return WERR_OK;
1000                 }
1001
1002                 ldb_ret = res->count;
1003                 result_res = res->msgs;
1004         } else if (format_offered == DRSUAPI_DS_NAME_FORMAT_FQDN_1779) {
1005                 ldb_ret = gendb_search_dn(sam_ctx, mem_ctx, name_dn, &result_res,
1006                                           result_attrs);
1007         } else if (domain_res) {
1008                 name_dn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
1009                 ldb_ret = gendb_search_dn(sam_ctx, mem_ctx, name_dn, &result_res,
1010                                           result_attrs);
1011         } else {
1012                 /* Can't happen */
1013                 DEBUG(0, ("LOGIC ERROR: DsCrackNameOneFilter domain ref search not available: This can't happen...\n"));
1014                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1015                 return WERR_OK;
1016         }
1017
1018         switch (ldb_ret) {
1019         case 1:
1020                 result = result_res[0];
1021                 break;
1022         case 0:
1023                 switch (format_offered) {
1024                 case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL:
1025                         return DsCrackNameSPNAlias(sam_ctx, mem_ctx,
1026                                                    smb_krb5_context,
1027                                                    format_flags, format_offered, format_desired,
1028                                                    name, info1);
1029
1030                 case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL:
1031                         return DsCrackNameUPN(sam_ctx, mem_ctx, smb_krb5_context,
1032                                               format_flags, format_offered, format_desired,
1033                                               name, info1);
1034                 default:
1035                         break;
1036                 }
1037                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1038                 return WERR_OK;
1039         case -1:
1040                 DEBUG(2, ("DsCrackNameOneFilter result search failed: %s\n", ldb_errstring(sam_ctx)));
1041                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1042                 return WERR_OK;
1043         default:
1044                 switch (format_offered) {
1045                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
1046                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
1047                 {
1048                         const char *canonical_name = NULL; /* Not required, but we get warnings... */
1049                         /* We may need to manually filter further */
1050                         for (i = 0; i < ldb_ret; i++) {
1051                                 switch (format_offered) {
1052                                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
1053                                         canonical_name = ldb_dn_canonical_string(mem_ctx, result_res[i]->dn);
1054                                         break;
1055                                 case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
1056                                         canonical_name = ldb_dn_canonical_ex_string(mem_ctx, result_res[i]->dn);
1057                                         break;
1058                                 default:
1059                                         break;
1060                                 }
1061                                 if (strcasecmp_m(canonical_name, name) == 0) {
1062                                         result = result_res[i];
1063                                         break;
1064                                 }
1065                         }
1066                         if (!result) {
1067                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1068                                 return WERR_OK;
1069                         }
1070                 }
1071                 /* FALL TROUGH */
1072                 default:
1073                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1074                         return WERR_OK;
1075                 }
1076         }
1077
1078         info1->dns_domain_name = ldb_dn_canonical_string(mem_ctx, result->dn);
1079         W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
1080         p = strchr(info1->dns_domain_name, '/');
1081         if (p) {
1082                 p[0] = '\0';
1083         }
1084
1085         /* here we can use result and domain_res[0] */
1086         switch (format_desired) {
1087         case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
1088                 info1->result_name      = ldb_dn_alloc_linearized(mem_ctx, result->dn);
1089                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1090
1091                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1092                 return WERR_OK;
1093         }
1094         case DRSUAPI_DS_NAME_FORMAT_CANONICAL: {
1095                 info1->result_name      = ldb_msg_find_attr_as_string(result, "canonicalName", NULL);
1096                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1097                 return WERR_OK;
1098         }
1099         case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX: {
1100                 /* Not in the virtual ldb attribute */
1101                 return DsCrackNameOneSyntactical(mem_ctx,
1102                                                  DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1103                                                  DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX,
1104                                                  result->dn, name, info1);
1105         }
1106         case DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT: {
1107
1108                 const struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, result, "objectSid");
1109                 const char *_acc = "", *_dom = "";
1110                 if (sid == NULL) {
1111                         info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1112                         return WERR_OK;
1113                 }
1114
1115                 if (samdb_find_attribute(sam_ctx, result, "objectClass",
1116                                          "domain")) {
1117                         /* This can also find a DomainDNSZones entry,
1118                          * but it won't have the SID we just
1119                          * checked.  */
1120                         ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
1121                                                      partitions_basedn,
1122                                                      LDB_SCOPE_ONELEVEL,
1123                                                      domain_attrs,
1124                                                      "(ncName=%s)", ldb_dn_get_linearized(result->dn));
1125
1126                         if (ldb_ret != LDB_SUCCESS) {
1127                                 DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
1128                                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1129                                 return WERR_OK;
1130                         }
1131
1132                         switch (domain_res->count) {
1133                         case 1:
1134                                 break;
1135                         case 0:
1136                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1137                                 return WERR_OK;
1138                         default:
1139                                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1140                                 return WERR_OK;
1141                         }
1142                         _dom = ldb_msg_find_attr_as_string(domain_res->msgs[0], "nETBIOSName", NULL);
1143                         W_ERROR_HAVE_NO_MEMORY(_dom);
1144                 } else {
1145                         _acc = ldb_msg_find_attr_as_string(result, "sAMAccountName", NULL);
1146                         if (!_acc) {
1147                                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1148                                 return WERR_OK;
1149                         }
1150                         if (dom_sid_in_domain(dom_sid_parse_talloc(mem_ctx, SID_BUILTIN), sid)) {
1151                                 _dom = "BUILTIN";
1152                         } else {
1153                                 const char *attrs[] = { NULL };
1154                                 struct ldb_result *domain_res2;
1155                                 struct dom_sid *dom_sid = dom_sid_dup(mem_ctx, sid);
1156                                 if (!dom_sid) {
1157                                         return WERR_OK;
1158                                 }
1159                                 dom_sid->num_auths--;
1160                                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
1161                                                              NULL,
1162                                                              LDB_SCOPE_BASE,
1163                                                              attrs,
1164                                                              "(&(objectSid=%s)(objectClass=domain))",
1165                                                              ldap_encode_ndr_dom_sid(mem_ctx, dom_sid));
1166
1167                                 if (ldb_ret != LDB_SUCCESS) {
1168                                         DEBUG(2, ("DsCrackNameOneFilter domain search failed: %s\n", ldb_errstring(sam_ctx)));
1169                                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1170                                         return WERR_OK;
1171                                 }
1172
1173                                 switch (domain_res->count) {
1174                                 case 1:
1175                                         break;
1176                                 case 0:
1177                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1178                                         return WERR_OK;
1179                                 default:
1180                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1181                                         return WERR_OK;
1182                                 }
1183
1184                                 ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res2,
1185                                                              partitions_basedn,
1186                                                              LDB_SCOPE_ONELEVEL,
1187                                                              domain_attrs,
1188                                                              "(ncName=%s)", ldb_dn_get_linearized(domain_res->msgs[0]->dn));
1189
1190                                 if (ldb_ret != LDB_SUCCESS) {
1191                                         DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s\n", ldb_errstring(sam_ctx)));
1192                                         info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1193                                         return WERR_OK;
1194                                 }
1195
1196                                 switch (domain_res2->count) {
1197                                 case 1:
1198                                         break;
1199                                 case 0:
1200                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1201                                         return WERR_OK;
1202                                 default:
1203                                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1204                                         return WERR_OK;
1205                                 }
1206                                 _dom = ldb_msg_find_attr_as_string(domain_res2->msgs[0], "nETBIOSName", NULL);
1207                                 W_ERROR_HAVE_NO_MEMORY(_dom);
1208                         }
1209                 }
1210
1211                 info1->result_name      = talloc_asprintf(mem_ctx, "%s\\%s", _dom, _acc);
1212                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1213
1214                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1215                 return WERR_OK;
1216         }
1217         case DRSUAPI_DS_NAME_FORMAT_GUID: {
1218                 struct GUID guid;
1219
1220                 guid = samdb_result_guid(result, "objectGUID");
1221
1222                 info1->result_name      = GUID_string2(mem_ctx, &guid);
1223                 W_ERROR_HAVE_NO_MEMORY(info1->result_name);
1224
1225                 info1->status           = DRSUAPI_DS_NAME_STATUS_OK;
1226                 return WERR_OK;
1227         }
1228         case DRSUAPI_DS_NAME_FORMAT_DISPLAY: {
1229                 info1->result_name      = ldb_msg_find_attr_as_string(result, "displayName", NULL);
1230                 if (!info1->result_name) {
1231                         info1->result_name      = ldb_msg_find_attr_as_string(result, "sAMAccountName", NULL);
1232                 }
1233                 if (!info1->result_name) {
1234                         info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1235                 } else {
1236                         info1->status = DRSUAPI_DS_NAME_STATUS_OK;
1237                 }
1238                 return WERR_OK;
1239         }
1240         case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
1241                 info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
1242                 return WERR_OK;
1243         }
1244         case DRSUAPI_DS_NAME_FORMAT_DNS_DOMAIN:
1245         case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
1246                 info1->dns_domain_name = NULL;
1247                 info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
1248                 return WERR_OK;
1249         }
1250         default:
1251                 info1->status = DRSUAPI_DS_NAME_STATUS_NO_MAPPING;
1252                 return WERR_OK;
1253         }
1254 }
1255
1256 /* Given a user Principal Name (such as foo@bar.com),
1257  * return the user and domain DNs.  This is used in the KDC to then
1258  * return the Keys and evaluate policy */
1259
1260 NTSTATUS crack_user_principal_name(struct ldb_context *sam_ctx,
1261                                    TALLOC_CTX *mem_ctx,
1262                                    const char *user_principal_name,
1263                                    struct ldb_dn **user_dn,
1264                                    struct ldb_dn **domain_dn)
1265 {
1266         WERROR werr;
1267         struct drsuapi_DsNameInfo1 info1;
1268         werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1269                                   DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
1270                                   DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1271                                   user_principal_name,
1272                                   &info1);
1273         if (!W_ERROR_IS_OK(werr)) {
1274                 return werror_to_ntstatus(werr);
1275         }
1276         switch (info1.status) {
1277         case DRSUAPI_DS_NAME_STATUS_OK:
1278                 break;
1279         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1280         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1281         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1282                 return NT_STATUS_NO_SUCH_USER;
1283         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1284         default:
1285                 return NT_STATUS_UNSUCCESSFUL;
1286         }
1287
1288         *user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1289
1290         if (domain_dn) {
1291                 werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1292                                           DRSUAPI_DS_NAME_FORMAT_CANONICAL,
1293                                           DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1294                                           talloc_asprintf(mem_ctx, "%s/",
1295                                                           info1.dns_domain_name),
1296                                           &info1);
1297                 if (!W_ERROR_IS_OK(werr)) {
1298                         return werror_to_ntstatus(werr);
1299                 }
1300                 switch (info1.status) {
1301                 case DRSUAPI_DS_NAME_STATUS_OK:
1302                         break;
1303                 case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1304                 case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1305                 case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1306                         return NT_STATUS_NO_SUCH_USER;
1307                 case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1308                 default:
1309                         return NT_STATUS_UNSUCCESSFUL;
1310                 }
1311
1312                 *domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1313         }
1314
1315         return NT_STATUS_OK;
1316 }
1317
1318 /* Given a Service Principal Name (such as host/foo.bar.com@BAR.COM),
1319  * return the user and domain DNs.  This is used in the KDC to then
1320  * return the Keys and evaluate policy */
1321
1322 NTSTATUS crack_service_principal_name(struct ldb_context *sam_ctx,
1323                                       TALLOC_CTX *mem_ctx,
1324                                       const char *service_principal_name,
1325                                       struct ldb_dn **user_dn,
1326                                       struct ldb_dn **domain_dn)
1327 {
1328         WERROR werr;
1329         struct drsuapi_DsNameInfo1 info1;
1330         werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1331                                   DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
1332                                   DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1333                                   service_principal_name,
1334                                   &info1);
1335         if (!W_ERROR_IS_OK(werr)) {
1336                 return werror_to_ntstatus(werr);
1337         }
1338         switch (info1.status) {
1339         case DRSUAPI_DS_NAME_STATUS_OK:
1340                 break;
1341         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1342         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1343         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1344                 return NT_STATUS_NO_SUCH_USER;
1345         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1346         default:
1347                 return NT_STATUS_UNSUCCESSFUL;
1348         }
1349
1350         *user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1351
1352         if (domain_dn) {
1353                 werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
1354                                           DRSUAPI_DS_NAME_FORMAT_CANONICAL,
1355                                           DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
1356                                           talloc_asprintf(mem_ctx, "%s/",
1357                                                           info1.dns_domain_name),
1358                                           &info1);
1359                 if (!W_ERROR_IS_OK(werr)) {
1360                         return werror_to_ntstatus(werr);
1361                 }
1362                 switch (info1.status) {
1363                 case DRSUAPI_DS_NAME_STATUS_OK:
1364                         break;
1365                 case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1366                 case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1367                 case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1368                         return NT_STATUS_NO_SUCH_USER;
1369                 case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1370                 default:
1371                         return NT_STATUS_UNSUCCESSFUL;
1372                 }
1373
1374                 *domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
1375         }
1376
1377         return NT_STATUS_OK;
1378 }
1379
1380 NTSTATUS crack_name_to_nt4_name(TALLOC_CTX *mem_ctx,
1381                                 struct tevent_context *ev_ctx,
1382                                 struct loadparm_context *lp_ctx,
1383                                 enum drsuapi_DsNameFormat format_offered,
1384                                 const char *name,
1385                                 const char **nt4_domain, const char **nt4_account)
1386 {
1387         WERROR werr;
1388         struct drsuapi_DsNameInfo1 info1;
1389         struct ldb_context *ldb;
1390         char *p;
1391
1392         /* Handle anonymous bind */
1393         if (!name || !*name) {
1394                 *nt4_domain = "";
1395                 *nt4_account = "";
1396                 return NT_STATUS_OK;
1397         }
1398
1399         ldb = samdb_connect(mem_ctx, ev_ctx, lp_ctx, system_session(lp_ctx), 0);
1400         if (ldb == NULL) {
1401                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1402         }
1403
1404         werr = DsCrackNameOneName(ldb, mem_ctx, 0,
1405                                   format_offered,
1406                                   DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT,
1407                                   name,
1408                                   &info1);
1409         if (!W_ERROR_IS_OK(werr)) {
1410                 return werror_to_ntstatus(werr);
1411         }
1412         switch (info1.status) {
1413         case DRSUAPI_DS_NAME_STATUS_OK:
1414                 break;
1415         case DRSUAPI_DS_NAME_STATUS_NOT_FOUND:
1416         case DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY:
1417         case DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE:
1418                 return NT_STATUS_NO_SUCH_USER;
1419         case DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR:
1420         default:
1421                 return NT_STATUS_UNSUCCESSFUL;
1422         }
1423
1424         *nt4_domain = talloc_strdup(mem_ctx, info1.result_name);
1425         if (*nt4_domain == NULL) {
1426                 return NT_STATUS_NO_MEMORY;
1427         }
1428
1429         p = strchr(*nt4_domain, '\\');
1430         if (!p) {
1431                 return NT_STATUS_INVALID_PARAMETER;
1432         }
1433         p[0] = '\0';
1434
1435         *nt4_account = talloc_strdup(mem_ctx, &p[1]);
1436         if (*nt4_account == NULL) {
1437                 return NT_STATUS_NO_MEMORY;
1438         }
1439
1440         return NT_STATUS_OK;
1441 }
1442
1443 NTSTATUS crack_auto_name_to_nt4_name(TALLOC_CTX *mem_ctx,
1444                                      struct tevent_context *ev_ctx,
1445                                      struct loadparm_context *lp_ctx,
1446                                      const char *name,
1447                                      const char **nt4_domain,
1448                                      const char **nt4_account)
1449 {
1450         enum drsuapi_DsNameFormat format_offered = DRSUAPI_DS_NAME_FORMAT_UNKNOWN;
1451
1452         /* Handle anonymous bind */
1453         if (!name || !*name) {
1454                 *nt4_domain = "";
1455                 *nt4_account = "";
1456                 return NT_STATUS_OK;
1457         }
1458
1459         if (strchr_m(name, '=')) {
1460                 format_offered = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
1461         } else if (strchr_m(name, '@')) {
1462                 format_offered = DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL;
1463         } else if (strchr_m(name, '\\')) {
1464                 format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
1465         } else if (strchr_m(name, '/')) {
1466                 format_offered = DRSUAPI_DS_NAME_FORMAT_CANONICAL;
1467         } else {
1468                 return NT_STATUS_NO_SUCH_USER;
1469         }
1470
1471         return crack_name_to_nt4_name(mem_ctx, ev_ctx, lp_ctx, format_offered, name, nt4_domain, nt4_account);
1472 }
1473
1474
1475 WERROR dcesrv_drsuapi_ListRoles(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1476                                 const struct drsuapi_DsNameRequest1 *req1,
1477                                 struct drsuapi_DsNameCtr1 **ctr1)
1478 {
1479         struct drsuapi_DsNameInfo1 *names;
1480         uint32_t i;
1481         uint32_t count = 5;/*number of fsmo role owners we are going to return*/
1482
1483         *ctr1 = talloc(mem_ctx, struct drsuapi_DsNameCtr1);
1484         W_ERROR_HAVE_NO_MEMORY(*ctr1);
1485         names = talloc_array(mem_ctx, struct drsuapi_DsNameInfo1, count);
1486         W_ERROR_HAVE_NO_MEMORY(names);
1487
1488         for (i = 0; i < count; i++) {
1489                 WERROR werr;
1490                 struct ldb_dn *role_owner_dn, *fsmo_role_dn, *server_dn;
1491                 werr = dsdb_get_fsmo_role_info(mem_ctx, sam_ctx, i,
1492                                                &fsmo_role_dn, &role_owner_dn);
1493                 if(!W_ERROR_IS_OK(werr)) {
1494                         return werr;
1495                 }
1496                 server_dn = ldb_dn_copy(mem_ctx, role_owner_dn);
1497                 ldb_dn_remove_child_components(server_dn, 1);
1498                 names[i].status = DRSUAPI_DS_NAME_STATUS_OK;
1499                 names[i].dns_domain_name = samdb_dn_to_dnshostname(sam_ctx, mem_ctx,
1500                                                                    server_dn);
1501                 if(!names[i].dns_domain_name) {
1502                         DEBUG(4, ("list_roles: Failed to find dNSHostName for server %s\n",
1503                                   ldb_dn_get_linearized(server_dn)));
1504                 }
1505                 names[i].result_name = talloc_strdup(mem_ctx, ldb_dn_get_linearized(role_owner_dn));
1506         }
1507
1508         (*ctr1)->count = count;
1509         (*ctr1)->array = names;
1510
1511         return WERR_OK;
1512 }
1513
1514 WERROR dcesrv_drsuapi_CrackNamesByNameFormat(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1515                                              const struct drsuapi_DsNameRequest1 *req1,
1516                                              struct drsuapi_DsNameCtr1 **ctr1)
1517 {
1518         struct drsuapi_DsNameInfo1 *names;
1519         uint32_t i, count;
1520         WERROR status;
1521
1522         *ctr1 = talloc_zero(mem_ctx, struct drsuapi_DsNameCtr1);
1523         W_ERROR_HAVE_NO_MEMORY(*ctr1);
1524
1525         count = req1->count;
1526         names = talloc_array(mem_ctx, struct drsuapi_DsNameInfo1, count);
1527         W_ERROR_HAVE_NO_MEMORY(names);
1528
1529         for (i=0; i < count; i++) {
1530                 status = DsCrackNameOneName(sam_ctx, mem_ctx,
1531                                             req1->format_flags,
1532                                             req1->format_offered,
1533                                             req1->format_desired,
1534                                             req1->names[i].str,
1535                                             &names[i]);
1536                 if (!W_ERROR_IS_OK(status)) {
1537                         return status;
1538                 }
1539         }
1540
1541         (*ctr1)->count = count;
1542         (*ctr1)->array = names;
1543
1544         return WERR_OK;
1545 }
1546
1547 WERROR dcesrv_drsuapi_ListInfoServer(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
1548                                      const struct drsuapi_DsNameRequest1 *req1,
1549                                      struct drsuapi_DsNameCtr1 **_ctr1)
1550 {
1551         struct drsuapi_DsNameInfo1 *names;
1552         struct ldb_result *res;
1553         struct ldb_dn *server_dn, *dn;
1554         struct drsuapi_DsNameCtr1 *ctr1;
1555         int ret, i;
1556         const char *str;
1557         const char *attrs[] = {
1558                 "dn",
1559                 "dNSHostName",
1560                 "serverReference",
1561                 NULL
1562         };
1563
1564         *_ctr1 = NULL;
1565
1566         ctr1 = talloc_zero(mem_ctx, struct drsuapi_DsNameCtr1);
1567         W_ERROR_HAVE_NO_MEMORY(ctr1);
1568
1569         /*
1570          * No magic value here, we have to return 3 entries according to the
1571          * MS-DRSR.pdf
1572          */
1573         ctr1->count = 3;
1574         names = talloc_zero_array(ctr1, struct drsuapi_DsNameInfo1,
1575                                   ctr1->count);
1576         W_ERROR_HAVE_NO_MEMORY(names);
1577         ctr1->array = names;
1578
1579         for (i=0; i < ctr1->count; i++) {
1580                 names[i].status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
1581         }
1582         *_ctr1 = ctr1;
1583
1584         if (req1->count != 1) {
1585                 DEBUG(1, ("Expected a count of 1 for the ListInfoServer crackname \n"));
1586                 return WERR_OK;
1587         }
1588
1589         if (req1->names[0].str == NULL) {
1590                 return WERR_OK;
1591         }
1592
1593         server_dn = ldb_dn_new(mem_ctx, sam_ctx, req1->names[0].str);
1594         W_ERROR_HAVE_NO_MEMORY(server_dn);
1595
1596         ret = ldb_search(sam_ctx, mem_ctx, &res, server_dn, LDB_SCOPE_ONELEVEL,
1597                          NULL, "(objectClass=nTDSDSA)");
1598
1599         if (ret != LDB_SUCCESS) {
1600                 DEBUG(1, ("Search for objectClass=nTDSDSA "
1601                           "returned less than 1 objects\n"));
1602                 return WERR_OK;
1603         }
1604
1605         if (res->count != 1) {
1606                 DEBUG(1, ("Search for objectClass=nTDSDSA "
1607                           "returned less than 1 objects\n"));
1608                 return WERR_OK;
1609         }
1610
1611         if (res->msgs[0]->dn) {
1612                 names[0].result_name = ldb_dn_alloc_linearized(names, res->msgs[0]->dn);
1613                 W_ERROR_HAVE_NO_MEMORY(names[0].result_name);
1614                 names[0].status = DRSUAPI_DS_NAME_STATUS_OK;
1615         }
1616
1617         talloc_free(res);
1618
1619         ret = ldb_search(sam_ctx, mem_ctx, &res, server_dn, LDB_SCOPE_BASE,
1620                          attrs, "(objectClass=*)");
1621         if (ret != LDB_SUCCESS) {
1622                 DEBUG(1, ("Search for objectClass=* on dn %s"
1623                           "returned %s\n", req1->names[0].str,
1624                           ldb_strerror(ret)));
1625                 return WERR_OK;
1626         }
1627
1628         if (res->count != 1) {
1629                 DEBUG(1, ("Search for objectClass=* on dn %s"
1630                           "returned less than 1 objects\n", req1->names[0].str));
1631                 return WERR_OK;
1632         }
1633
1634         str = ldb_msg_find_attr_as_string(res->msgs[0], "dNSHostName", NULL);
1635         if (str != NULL) {
1636                 names[1].result_name = talloc_strdup(names, str);
1637                 W_ERROR_HAVE_NO_MEMORY(names[1].result_name);
1638                 names[1].status = DRSUAPI_DS_NAME_STATUS_OK;
1639         }
1640
1641         dn = ldb_msg_find_attr_as_dn(sam_ctx, mem_ctx, res->msgs[0], "serverReference");
1642         if (dn != NULL) {
1643                 names[2].result_name = ldb_dn_alloc_linearized(names, dn);
1644                 W_ERROR_HAVE_NO_MEMORY(names[2].result_name);
1645                 names[2].status = DRSUAPI_DS_NAME_STATUS_OK;
1646         }
1647
1648         talloc_free(dn);
1649         talloc_free(res);
1650
1651         return WERR_OK;
1652 }