source4/cldap_server/netlogon.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    CLDAP server - netlogon handling
   5
   6    Copyright (C) Andrew Tridgell        2005
   7    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "lib/ldb/include/ldb.h"
  25 #include "lib/ldb/include/ldb_errors.h"
  26 #include "lib/events/events.h"
  27 #include "lib/socket/socket.h"
  28 #include "smbd/service_task.h"
  29 #include "cldap_server/cldap_server.h"
  30 #include "librpc/gen_ndr/ndr_misc.h"
  31 #include "libcli/ldap/ldap_ndr.h"
  32 #include "libcli/security/security.h"
  33 #include "dsdb/samdb/samdb.h"
  34 #include "auth/auth.h"
  35 #include "ldb_wrap.h"
  36 #include "system/network.h"
  37 #include "lib/socket/netif.h"
  38 #include "param/param.h"
  39 /*
  40   fill in the cldap netlogon union for a given version
  41 */
  42 NTSTATUS fill_netlogon_samlogon_response(struct ldb_context *sam_ctx,
  43                                          TALLOC_CTX *mem_ctx,
  44                                          const char *domain,
  45                                          const char *netbios_domain,
  46                                          struct dom_sid *domain_sid,
  47                                          const char *domain_guid,
  48                                          const char *user,
  49                                          uint32_t acct_control,
  50                                          const char *src_address,
  51                                          uint32_t version,
  52                                          struct loadparm_context *lp_ctx,
  53                                          struct netlogon_samlogon_response *netlogon)
  54 {
  55         const char *ref_attrs[] = {"nETBIOSName", "dnsRoot", "ncName", NULL};
  56         const char *dom_attrs[] = {"objectGUID", NULL};
  57         const char *none_attrs[] = {NULL};
  58         struct ldb_result *ref_res = NULL, *dom_res = NULL, *user_res = NULL;
  59         int ret;
  60         const char **services = lp_server_services(lp_ctx);
  61         uint32_t server_type;
  62         const char *pdc_name;
  63         struct GUID domain_uuid;
  64         const char *realm;
  65         const char *dns_domain;
  66         const char *pdc_dns_name;
  67         const char *flatname;
  68         const char *server_site;
  69         const char *client_site;
  70         const char *pdc_ip;
  71         struct ldb_dn *partitions_basedn;
  72         struct interface *ifaces;
  73         bool user_known;
  74         NTSTATUS status;
  75
  76         partitions_basedn = samdb_partitions_dn(sam_ctx, mem_ctx);
  77
  78         /* the domain has an optional trailing . */
  79         if (domain && domain[strlen(domain)-1] == '.') {
  80                 domain = talloc_strndup(mem_ctx, domain, strlen(domain)-1);
  81         }
  82
  83         if (domain) {
  84                 struct ldb_dn *dom_dn;
  85                 /* try and find the domain */
  86
  87                 ret = ldb_search(sam_ctx, mem_ctx, &ref_res,
  88                                  partitions_basedn, LDB_SCOPE_ONELEVEL,
  89                                  ref_attrs,
  90                                  "(&(&(objectClass=crossRef)(dnsRoot=%s))(nETBIOSName=*))",
  91                                  ldb_binary_encode_string(mem_ctx, domain));
  92
  93                 if (ret != LDB_SUCCESS) {
  94                         DEBUG(2,("Unable to find referece to '%s' in sam: %s\n",
  95                                  domain,
  96                                  ldb_errstring(sam_ctx)));
  97                         return NT_STATUS_NO_SUCH_DOMAIN;
  98                 } else if (ref_res->count == 1) {
  99                         dom_dn = ldb_msg_find_attr_as_dn(sam_ctx, mem_ctx, ref_res->msgs[0], "ncName");
 100                         if (!dom_dn) {
 101                                 return NT_STATUS_NO_SUCH_DOMAIN;
 102                         }
 103                         ret = ldb_search(sam_ctx, mem_ctx, &dom_res,
 104                                          dom_dn, LDB_SCOPE_BASE, dom_attrs,
 105                                          "objectClass=domain");
 106                         if (ret != LDB_SUCCESS) {
 107                                 DEBUG(2,("Error finding domain '%s'/'%s' in sam: %s\n", domain, ldb_dn_get_linearized(dom_dn), ldb_errstring(sam_ctx)));
 108                                 return NT_STATUS_NO_SUCH_DOMAIN;
 109                         }
 110                         if (dom_res->count != 1) {
 111                                 DEBUG(2,("Error finding domain '%s'/'%s' in sam\n", domain, ldb_dn_get_linearized(dom_dn)));
 112                                 return NT_STATUS_NO_SUCH_DOMAIN;
 113                         }
 114                 } else if (ref_res->count > 1) {
 115                         talloc_free(ref_res);
 116                         return NT_STATUS_NO_SUCH_DOMAIN;
 117                 }
 118         }
 119
 120         if (netbios_domain) {
 121                 struct ldb_dn *dom_dn;
 122                 /* try and find the domain */
 123
 124                 ret = ldb_search(sam_ctx, mem_ctx, &ref_res,
 125                                  partitions_basedn, LDB_SCOPE_ONELEVEL,
 126                                  ref_attrs,
 127                                  "(&(objectClass=crossRef)(ncName=*)(nETBIOSName=%s))",
 128                                  ldb_binary_encode_string(mem_ctx, netbios_domain));
 129
 130                 if (ret != LDB_SUCCESS) {
 131                         DEBUG(2,("Unable to find referece to '%s' in sam: %s\n",
 132                                  netbios_domain,
 133                                  ldb_errstring(sam_ctx)));
 134                         return NT_STATUS_NO_SUCH_DOMAIN;
 135                 } else if (ref_res->count == 1) {
 136                         dom_dn = ldb_msg_find_attr_as_dn(sam_ctx, mem_ctx, ref_res->msgs[0], "ncName");
 137                         if (!dom_dn) {
 138                                 return NT_STATUS_NO_SUCH_DOMAIN;
 139                         }
 140                         ret = ldb_search(sam_ctx, mem_ctx, &dom_res,
 141                                          dom_dn, LDB_SCOPE_BASE, dom_attrs,
 142                                          "objectClass=domain");
 143                         if (ret != LDB_SUCCESS) {
 144                                 DEBUG(2,("Error finding domain '%s'/'%s' in sam: %s\n", domain, ldb_dn_get_linearized(dom_dn), ldb_errstring(sam_ctx)));
 145                                 return NT_STATUS_NO_SUCH_DOMAIN;
 146                         }
 147                         if (dom_res->count != 1) {
 148                                 DEBUG(2,("Error finding domain '%s'/'%s' in sam\n", domain, ldb_dn_get_linearized(dom_dn)));
 149                                 return NT_STATUS_NO_SUCH_DOMAIN;
 150                         }
 151                 } else if (ref_res->count > 1) {
 152                         talloc_free(ref_res);
 153                         return NT_STATUS_NO_SUCH_DOMAIN;
 154                 }
 155         }
 156
 157         if ((dom_res == NULL || dom_res->count == 0) && (domain_guid || domain_sid)) {
 158                 ref_res = NULL;
 159
 160                 if (domain_guid) {
 161                         struct GUID binary_guid;
 162                         struct ldb_val guid_val;
 163                         enum ndr_err_code ndr_err;
 164
 165                         /* By this means, we ensure we don't have funny stuff in the GUID */
 166
 167                         status = GUID_from_string(domain_guid, &binary_guid);
 168                         if (!NT_STATUS_IS_OK(status)) {
 169                                 return status;
 170                         }
 171
 172                         /* And this gets the result into the binary format we want anyway */
 173                         ndr_err = ndr_push_struct_blob(&guid_val, mem_ctx, NULL, &binary_guid,
 174                                                        (ndr_push_flags_fn_t)ndr_push_GUID);
 175                         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 176                                 return NT_STATUS_INVALID_PARAMETER;
 177                         }
 178                         ret = ldb_search(sam_ctx, mem_ctx, &dom_res,
 179                                                  NULL, LDB_SCOPE_SUBTREE,
 180                                                  dom_attrs,
 181                                                  "(&(objectCategory=DomainDNS)(objectGUID=%s))",
 182                                                  ldb_binary_encode(mem_ctx, guid_val));
 183                 } else { /* domain_sid case */
 184                         struct dom_sid *sid;
 185                         struct ldb_val sid_val;
 186                         enum ndr_err_code ndr_err;
 187
 188                         /* Rather than go via the string, just push into the NDR form */
 189                         ndr_err = ndr_push_struct_blob(&sid_val, mem_ctx, NULL, &sid,
 190                                                        (ndr_push_flags_fn_t)ndr_push_dom_sid);
 191                         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 192                                 return NT_STATUS_INVALID_PARAMETER;
 193                         }
 194
 195                         ret = ldb_search(sam_ctx, mem_ctx, &dom_res,
 196                                                  NULL, LDB_SCOPE_SUBTREE,
 197                                                  dom_attrs,
 198                                                  "(&(objectCategory=DomainDNS)(objectSID=%s))",
 199                                                  ldb_binary_encode(mem_ctx, sid_val));
 200                 }
 201
 202                 if (ret != LDB_SUCCESS) {
 203                         DEBUG(2,("Unable to find referece to GUID '%s' or SID %s in sam: %s\n",
 204                                  domain_guid, dom_sid_string(mem_ctx, domain_sid),
 205                                  ldb_errstring(sam_ctx)));
 206                         return NT_STATUS_NO_SUCH_DOMAIN;
 207                 } else if (dom_res->count == 1) {
 208                         /* try and find the domain */
 209                         ret = ldb_search(sam_ctx, mem_ctx, &ref_res,
 210                                                  partitions_basedn, LDB_SCOPE_ONELEVEL,
 211                                                  ref_attrs,
 212                                                  "(&(objectClass=crossRef)(ncName=%s))",
 213                                                  ldb_dn_get_linearized(dom_res->msgs[0]->dn));
 214
 215                         if (ret != LDB_SUCCESS) {
 216                                 DEBUG(2,("Unable to find referece to '%s' in sam: %s\n",
 217                                          ldb_dn_get_linearized(dom_res->msgs[0]->dn),
 218                                          ldb_errstring(sam_ctx)));
 219                                 return NT_STATUS_NO_SUCH_DOMAIN;
 220
 221                         } else if (ref_res->count != 1) {
 222                                 DEBUG(2,("Unable to find referece to '%s' in sam\n",
 223                                          ldb_dn_get_linearized(dom_res->msgs[0]->dn)));
 224                                 return NT_STATUS_NO_SUCH_DOMAIN;
 225                         }
 226                 } else if (dom_res->count > 1) {
 227                         talloc_free(ref_res);
 228                         return NT_STATUS_NO_SUCH_DOMAIN;
 229                 }
 230         }
 231
 232
 233         if ((ref_res == NULL || ref_res->count == 0)) {
 234                 DEBUG(2,("Unable to find domain reference with name %s or GUID {%s}\n", domain, domain_guid));
 235                 return NT_STATUS_NO_SUCH_DOMAIN;
 236         }
 237
 238         if ((dom_res == NULL || dom_res->count == 0)) {
 239                 DEBUG(2,("Unable to find domain with name %s or GUID {%s}\n", domain, domain_guid));
 240                 return NT_STATUS_NO_SUCH_DOMAIN;
 241         }
 242
 243         /* work around different inputs for not-specified users */
 244         if (!user) {
 245                 user = "";
 246         }
 247
 248         /* Enquire about any valid username with just a CLDAP packet -
 249          * if kerberos didn't also do this, the security folks would
 250          * scream... */
 251         if (user[0]) {                                                  \
 252                 /* Only allow some bits to be enquired:  [MS-ATDS] 7.3.3.2 */
 253                 if (acct_control == (uint32_t)-1) {
 254                         acct_control = 0;
 255                 }
 256                 acct_control = acct_control & (ACB_TEMPDUP | ACB_NORMAL | ACB_DOMTRUST | ACB_WSTRUST | ACB_SVRTRUST);
 257
 258                 /* We must exclude disabled accounts, but otherwise do the bitwise match the client asked for */
 259                 ret = ldb_search(sam_ctx, mem_ctx, &user_res,
 260                                          dom_res->msgs[0]->dn, LDB_SCOPE_SUBTREE,
 261                                          none_attrs,
 262                                          "(&(objectClass=user)(samAccountName=%s)"
 263                                          "(!(userAccountControl:" LDB_OID_COMPARATOR_AND ":=%u))"
 264                                          "(userAccountControl:" LDB_OID_COMPARATOR_OR ":=%u))",
 265                                          ldb_binary_encode_string(mem_ctx, user),
 266                                          UF_ACCOUNTDISABLE, samdb_acb2uf(acct_control));
 267                 if (ret != LDB_SUCCESS) {
 268                         DEBUG(2,("Unable to find referece to user '%s' with ACB 0x%8x under %s: %s\n",
 269                                  user, acct_control, ldb_dn_get_linearized(dom_res->msgs[0]->dn),
 270                                  ldb_errstring(sam_ctx)));
 271                         return NT_STATUS_NO_SUCH_USER;
 272                 } else if (user_res->count == 1) {
 273                         user_known = true;
 274                 } else {
 275                         user_known = false;
 276                 }
 277
 278         } else {
 279                 user_known = true;
 280         }
 281
 282         server_type      =
 283                 NBT_SERVER_DS | NBT_SERVER_TIMESERV |
 284                 NBT_SERVER_CLOSEST | NBT_SERVER_WRITABLE |
 285                 NBT_SERVER_GOOD_TIMESERV | NBT_SERVER_DS_DNS_CONTR |
 286                 NBT_SERVER_DS_DNS_DOMAIN;
 287
 288         if (samdb_is_pdc(sam_ctx)) {
 289                 server_type |= NBT_SERVER_PDC;
 290         }
 291
 292         if (samdb_is_gc(sam_ctx)) {
 293                 server_type |= NBT_SERVER_GC;
 294         }
 295
 296         if (str_list_check(services, "ldap")) {
 297                 server_type |= NBT_SERVER_LDAP;
 298         }
 299
 300         if (str_list_check(services, "kdc")) {
 301                 server_type |= NBT_SERVER_KDC;
 302         }
 303
 304         if (!ldb_dn_compare_base(ldb_get_root_basedn(sam_ctx), ldb_get_default_basedn(sam_ctx))) {
 305                 server_type |= NBT_SERVER_DS_DNS_FOREST;
 306         }
 307
 308         pdc_name         = talloc_asprintf(mem_ctx, "\\\\%s", lp_netbios_name(lp_ctx));
 309         domain_uuid      = samdb_result_guid(dom_res->msgs[0], "objectGUID");
 310         realm            = samdb_result_string(ref_res->msgs[0], "dnsRoot", lp_realm(lp_ctx));
 311         dns_domain       = samdb_result_string(ref_res->msgs[0], "dnsRoot", lp_realm(lp_ctx));
 312         pdc_dns_name     = talloc_asprintf(mem_ctx, "%s.%s",
 313                                            strlower_talloc(mem_ctx,
 314                                                            lp_netbios_name(lp_ctx)),
 315                                            dns_domain);
 316
 317         flatname         = samdb_result_string(ref_res->msgs[0], "nETBIOSName",
 318                                                lp_workgroup(lp_ctx));
 319         /* FIXME: Hardcoded site names */
 320         server_site      = "Default-First-Site-Name";
 321         client_site      = "Default-First-Site-Name";
 322         load_interfaces(mem_ctx, lp_interfaces(lp_ctx), &ifaces);
 323         pdc_ip           = iface_best_ip(ifaces, src_address);
 324
 325         ZERO_STRUCTP(netlogon);
 326
 327         /* check if either of these bits is present */
 328         if (version & (NETLOGON_NT_VERSION_5EX|NETLOGON_NT_VERSION_5EX_WITH_IP)) {
 329                 uint32_t extra_flags = 0;
 330                 netlogon->ntver = NETLOGON_NT_VERSION_5EX;
 331
 332                 /* could check if the user exists */
 333                 if (user_known) {
 334                         netlogon->nt5_ex.command      = LOGON_SAM_LOGON_RESPONSE_EX;
 335                 } else {
 336                         netlogon->nt5_ex.command      = LOGON_SAM_LOGON_USER_UNKNOWN_EX;
 337                 }
 338                 netlogon->nt5_ex.server_type  = server_type;
 339                 netlogon->nt5_ex.domain_uuid  = domain_uuid;
 340                 netlogon->nt5_ex.forest       = realm;
 341                 netlogon->nt5_ex.dns_domain   = dns_domain;
 342                 netlogon->nt5_ex.pdc_dns_name = pdc_dns_name;
 343                 netlogon->nt5_ex.domain       = flatname;
 344                 netlogon->nt5_ex.pdc_name     = lp_netbios_name(lp_ctx);
 345                 netlogon->nt5_ex.user_name    = user;
 346                 netlogon->nt5_ex.server_site  = server_site;
 347                 netlogon->nt5_ex.client_site  = client_site;
 348
 349                 if (version & NETLOGON_NT_VERSION_5EX_WITH_IP) {
 350                         /* Clearly this needs to be fixed up for IPv6 */
 351                         extra_flags = NETLOGON_NT_VERSION_5EX_WITH_IP;
 352                         netlogon->nt5_ex.sockaddr.sa_family    = 2;
 353                         netlogon->nt5_ex.sockaddr.pdc_ip       = pdc_ip;
 354                         netlogon->nt5_ex.sockaddr.remaining = data_blob_talloc_zero(mem_ctx, 8);
 355                 }
 356                 netlogon->nt5_ex.nt_version   = NETLOGON_NT_VERSION_1|NETLOGON_NT_VERSION_5EX|extra_flags;
 357                 netlogon->nt5_ex.lmnt_token   = 0xFFFF;
 358                 netlogon->nt5_ex.lm20_token   = 0xFFFF;
 359
 360         } else if (version & NETLOGON_NT_VERSION_5) {
 361                 netlogon->ntver = NETLOGON_NT_VERSION_5;
 362
 363                 /* could check if the user exists */
 364                 if (user_known) {
 365                         netlogon->nt5.command      = LOGON_SAM_LOGON_RESPONSE;
 366                 } else {
 367                         netlogon->nt5.command      = LOGON_SAM_LOGON_USER_UNKNOWN;
 368                 }
 369                 netlogon->nt5.pdc_name     = pdc_name;
 370                 netlogon->nt5.user_name    = user;
 371                 netlogon->nt5.domain_name  = flatname;
 372                 netlogon->nt5.domain_uuid  = domain_uuid;
 373                 netlogon->nt5.forest       = realm;
 374                 netlogon->nt5.dns_domain   = dns_domain;
 375                 netlogon->nt5.pdc_dns_name = pdc_dns_name;
 376                 netlogon->nt5.pdc_ip       = pdc_ip;
 377                 netlogon->nt5.server_type  = server_type;
 378                 netlogon->nt5.nt_version   = NETLOGON_NT_VERSION_1|NETLOGON_NT_VERSION_5;
 379                 netlogon->nt5.lmnt_token   = 0xFFFF;
 380                 netlogon->nt5.lm20_token   = 0xFFFF;
 381
 382         } else /* (version & NETLOGON_NT_VERSION_1) and all other cases */ {
 383                 netlogon->ntver = NETLOGON_NT_VERSION_1;
 384                 /* could check if the user exists */
 385                 if (user_known) {
 386                         netlogon->nt4.command      = LOGON_SAM_LOGON_RESPONSE;
 387                 } else {
 388                         netlogon->nt4.command      = LOGON_SAM_LOGON_USER_UNKNOWN;
 389                 }
 390                 netlogon->nt4.server      = pdc_name;
 391                 netlogon->nt4.user_name   = user;
 392                 netlogon->nt4.domain      = flatname;
 393                 netlogon->nt4.nt_version  = NETLOGON_NT_VERSION_1;
 394                 netlogon->nt4.lmnt_token  = 0xFFFF;
 395                 netlogon->nt4.lm20_token  = 0xFFFF;
 396         }
 397
 398         return NT_STATUS_OK;
 399 }
 400
 401
 402 /*
 403   handle incoming cldap requests
 404 */
 405 void cldapd_netlogon_request(struct cldap_socket *cldap,
 406                              uint32_t message_id,
 407                              struct ldb_parse_tree *tree,
 408                              struct socket_address *src)
 409 {
 410         struct cldapd_server *cldapd = talloc_get_type(cldap->incoming.private, struct cldapd_server);
 411         int i;
 412         const char *domain = NULL;
 413         const char *host = NULL;
 414         const char *user = NULL;
 415         const char *domain_guid = NULL;
 416         const char *domain_sid = NULL;
 417         int acct_control = -1;
 418         int version = -1;
 419         struct netlogon_samlogon_response netlogon;
 420         NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
 421
 422         TALLOC_CTX *tmp_ctx = talloc_new(cldap);
 423
 424         if (tree->operation != LDB_OP_AND) goto failed;
 425
 426         /* extract the query elements */
 427         for (i=0;i<tree->u.list.num_elements;i++) {
 428                 struct ldb_parse_tree *t = tree->u.list.elements[i];
 429                 if (t->operation != LDB_OP_EQUALITY) goto failed;
 430                 if (strcasecmp(t->u.equality.attr, "DnsDomain") == 0) {
 431                         domain = talloc_strndup(tmp_ctx,
 432                                                 (const char *)t->u.equality.value.data,
 433                                                 t->u.equality.value.length);
 434                 }
 435                 if (strcasecmp(t->u.equality.attr, "Host") == 0) {
 436                         host = talloc_strndup(tmp_ctx,
 437                                               (const char *)t->u.equality.value.data,
 438                                               t->u.equality.value.length);
 439                 }
 440                 if (strcasecmp(t->u.equality.attr, "DomainGuid") == 0) {
 441                         NTSTATUS enc_status;
 442                         struct GUID guid;
 443                         enc_status = ldap_decode_ndr_GUID(tmp_ctx,
 444                                                           t->u.equality.value, &guid);
 445                         if (NT_STATUS_IS_OK(enc_status)) {
 446                                 domain_guid = GUID_string(tmp_ctx, &guid);
 447                         }
 448                 }
 449                 if (strcasecmp(t->u.equality.attr, "DomainSid") == 0) {
 450                         domain_sid = talloc_strndup(tmp_ctx,
 451                                                     (const char *)t->u.equality.value.data,
 452                                                     t->u.equality.value.length);
 453                 }
 454                 if (strcasecmp(t->u.equality.attr, "User") == 0) {
 455                         user = talloc_strndup(tmp_ctx,
 456                                               (const char *)t->u.equality.value.data,
 457                                               t->u.equality.value.length);
 458                 }
 459                 if (strcasecmp(t->u.equality.attr, "NtVer") == 0 &&
 460                     t->u.equality.value.length == 4) {
 461                         version = IVAL(t->u.equality.value.data, 0);
 462                 }
 463                 if (strcasecmp(t->u.equality.attr, "AAC") == 0 &&
 464                     t->u.equality.value.length == 4) {
 465                         acct_control = IVAL(t->u.equality.value.data, 0);
 466                 }
 467         }
 468
 469         if (domain_guid == NULL && domain == NULL) {
 470                 domain = lp_realm(cldapd->task->lp_ctx);
 471         }
 472
 473         if (version == -1) {
 474                 goto failed;
 475         }
 476
 477         DEBUG(5,("cldap netlogon query domain=%s host=%s user=%s version=%d guid=%s\n",
 478                  domain, host, user, version, domain_guid));
 479
 480         status = fill_netlogon_samlogon_response(cldapd->samctx, tmp_ctx, domain, NULL, NULL, domain_guid,
 481                                                  user, acct_control, src->addr,
 482                                                  version, cldapd->task->lp_ctx, &netlogon);
 483         if (!NT_STATUS_IS_OK(status)) {
 484                 goto failed;
 485         }
 486
 487         status = cldap_netlogon_reply(cldap, message_id, src, version,
 488                                       &netlogon);
 489         if (!NT_STATUS_IS_OK(status)) {
 490                 goto failed;
 491         }
 492
 493         talloc_free(tmp_ctx);
 494         return;
 495
 496 failed:
 497         DEBUG(2,("cldap netlogon query failed domain=%s host=%s version=%d - %s\n",
 498                  domain, host, version, nt_errstr(status)));
 499         talloc_free(tmp_ctx);
 500         cldap_empty_reply(cldap, message_id, src);
 501 }