source3/utils/net_util.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Helper routines for net
   4  *  Copyright (C) Volker Lendecke 2006
   5  *  Copyright (C) Kai Blin 2008
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21
  22 #include "includes.h"
  23 #include "utils/net.h"
  24
  25 NTSTATUS net_rpc_lookup_name(struct net_context *c,
  26                              TALLOC_CTX *mem_ctx, struct cli_state *cli,
  27                              const char *name, const char **ret_domain,
  28                              const char **ret_name, DOM_SID *ret_sid,
  29                              enum lsa_SidType *ret_type)
  30 {
  31         struct rpc_pipe_client *lsa_pipe = NULL;
  32         struct policy_handle pol;
  33         NTSTATUS result = NT_STATUS_OK;
  34         const char **dom_names;
  35         DOM_SID *sids;
  36         enum lsa_SidType *types;
  37
  38         ZERO_STRUCT(pol);
  39
  40         result = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
  41                                           &lsa_pipe);
  42         if (!NT_STATUS_IS_OK(result)) {
  43                 d_fprintf(stderr, _("Could not initialise lsa pipe\n"));
  44                 return result;
  45         }
  46
  47         result = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, false,
  48                                         SEC_FLAG_MAXIMUM_ALLOWED,
  49                                         &pol);
  50         if (!NT_STATUS_IS_OK(result)) {
  51                 d_fprintf(stderr, _("open_policy failed: %s\n"),
  52                           nt_errstr(result));
  53                 return result;
  54         }
  55
  56         result = rpccli_lsa_lookup_names(lsa_pipe, mem_ctx, &pol, 1,
  57                                          &name, &dom_names, 1, &sids, &types);
  58
  59         if (!NT_STATUS_IS_OK(result)) {
  60                 /* This can happen easily, don't log an error */
  61                 goto done;
  62         }
  63
  64         if (ret_domain != NULL) {
  65                 *ret_domain = dom_names[0];
  66         }
  67         if (ret_name != NULL) {
  68                 *ret_name = talloc_strdup(mem_ctx, name);
  69         }
  70         if (ret_sid != NULL) {
  71                 sid_copy(ret_sid, &sids[0]);
  72         }
  73         if (ret_type != NULL) {
  74                 *ret_type = types[0];
  75         }
  76
  77  done:
  78         if (is_valid_policy_hnd(&pol)) {
  79                 rpccli_lsa_Close(lsa_pipe, mem_ctx, &pol);
  80         }
  81         TALLOC_FREE(lsa_pipe);
  82
  83         return result;
  84 }
  85
  86 /****************************************************************************
  87  Connect to \\server\service.
  88 ****************************************************************************/
  89
  90 NTSTATUS connect_to_service(struct net_context *c,
  91                                         struct cli_state **cli_ctx,
  92                                         struct sockaddr_storage *server_ss,
  93                                         const char *server_name,
  94                                         const char *service_name,
  95                                         const char *service_type)
  96 {
  97         NTSTATUS nt_status;
  98         int flags = 0;
  99
 100         c->opt_password = net_prompt_pass(c, c->opt_user_name);
 101
 102         if (c->opt_kerberos) {
 103                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 104         }
 105
 106         if (c->opt_kerberos && c->opt_password) {
 107                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 108         }
 109
 110         nt_status = cli_full_connection(cli_ctx, NULL, server_name,
 111                                         server_ss, c->opt_port,
 112                                         service_name, service_type,
 113                                         c->opt_user_name, c->opt_workgroup,
 114                                         c->opt_password, flags, Undefined, NULL);
 115         if (!NT_STATUS_IS_OK(nt_status)) {
 116                 d_fprintf(stderr, _("Could not connect to server %s\n"),
 117                           server_name);
 118
 119                 /* Display a nicer message depending on the result */
 120
 121                 if (NT_STATUS_V(nt_status) ==
 122                     NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
 123                         d_fprintf(stderr,
 124                                   _("The username or password was not "
 125                                     "correct.\n"));
 126
 127                 if (NT_STATUS_V(nt_status) ==
 128                     NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
 129                         d_fprintf(stderr, _("The account was locked out.\n"));
 130
 131                 if (NT_STATUS_V(nt_status) ==
 132                     NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
 133                         d_fprintf(stderr, _("The account was disabled.\n"));
 134                 return nt_status;
 135         }
 136
 137         if (c->smb_encrypt) {
 138                 nt_status = cli_force_encryption(*cli_ctx,
 139                                         c->opt_user_name,
 140                                         c->opt_password,
 141                                         c->opt_workgroup);
 142
 143                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_NOT_SUPPORTED)) {
 144                         d_printf(_("Encryption required and "
 145                                 "server that doesn't support "
 146                                 "UNIX extensions - failing connect\n"));
 147                 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNKNOWN_REVISION)) {
 148                         d_printf(_("Encryption required and "
 149                                 "can't get UNIX CIFS extensions "
 150                                 "version from server.\n"));
 151                 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
 152                         d_printf(_("Encryption required and "
 153                                 "share %s doesn't support "
 154                                 "encryption.\n"), service_name);
 155                 } else if (!NT_STATUS_IS_OK(nt_status)) {
 156                         d_printf(_("Encryption required and "
 157                                 "setup failed with error %s.\n"),
 158                                 nt_errstr(nt_status));
 159                 }
 160
 161                 if (!NT_STATUS_IS_OK(nt_status)) {
 162                         cli_shutdown(*cli_ctx);
 163                         *cli_ctx = NULL;
 164                 }
 165         }
 166
 167         return nt_status;
 168 }
 169
 170 /****************************************************************************
 171  Connect to \\server\ipc$.
 172 ****************************************************************************/
 173
 174 NTSTATUS connect_to_ipc(struct net_context *c,
 175                         struct cli_state **cli_ctx,
 176                         struct sockaddr_storage *server_ss,
 177                         const char *server_name)
 178 {
 179         return connect_to_service(c, cli_ctx, server_ss, server_name, "IPC$",
 180                                   "IPC");
 181 }
 182
 183 /****************************************************************************
 184  Connect to \\server\ipc$ anonymously.
 185 ****************************************************************************/
 186
 187 NTSTATUS connect_to_ipc_anonymous(struct net_context *c,
 188                                 struct cli_state **cli_ctx,
 189                                 struct sockaddr_storage *server_ss,
 190                                 const char *server_name)
 191 {
 192         NTSTATUS nt_status;
 193
 194         nt_status = cli_full_connection(cli_ctx, c->opt_requester_name,
 195                                         server_name, server_ss, c->opt_port,
 196                                         "IPC$", "IPC",
 197                                         "", "",
 198                                         "", 0, Undefined, NULL);
 199
 200         if (NT_STATUS_IS_OK(nt_status)) {
 201                 return nt_status;
 202         } else {
 203                 DEBUG(1,("Cannot connect to server (anonymously).  Error was %s\n", nt_errstr(nt_status)));
 204                 return nt_status;
 205         }
 206 }
 207
 208 /****************************************************************************
 209  Return malloced user@realm for krb5 login.
 210 ****************************************************************************/
 211
 212 static char *get_user_and_realm(const char *username)
 213 {
 214         char *user_and_realm = NULL;
 215
 216         if (!username) {
 217                 return NULL;
 218         }
 219         if (strchr_m(username, '@')) {
 220                 user_and_realm = SMB_STRDUP(username);
 221         } else {
 222                 if (asprintf(&user_and_realm, "%s@%s", username, lp_realm()) == -1) {
 223                         user_and_realm = NULL;
 224                 }
 225         }
 226         return user_and_realm;
 227 }
 228
 229 /****************************************************************************
 230  Connect to \\server\ipc$ using KRB5.
 231 ****************************************************************************/
 232
 233 NTSTATUS connect_to_ipc_krb5(struct net_context *c,
 234                         struct cli_state **cli_ctx,
 235                         struct sockaddr_storage *server_ss,
 236                         const char *server_name)
 237 {
 238         NTSTATUS nt_status;
 239         char *user_and_realm = NULL;
 240
 241         /* FIXME: Should get existing kerberos ticket if possible. */
 242         c->opt_password = net_prompt_pass(c, c->opt_user_name);
 243         if (!c->opt_password) {
 244                 return NT_STATUS_NO_MEMORY;
 245         }
 246
 247         user_and_realm = get_user_and_realm(c->opt_user_name);
 248         if (!user_and_realm) {
 249                 return NT_STATUS_NO_MEMORY;
 250         }
 251
 252         nt_status = cli_full_connection(cli_ctx, NULL, server_name,
 253                                         server_ss, c->opt_port,
 254                                         "IPC$", "IPC",
 255                                         user_and_realm, c->opt_workgroup,
 256                                         c->opt_password,
 257                                         CLI_FULL_CONNECTION_USE_KERBEROS,
 258                                         Undefined, NULL);
 259
 260         SAFE_FREE(user_and_realm);
 261
 262         if (!NT_STATUS_IS_OK(nt_status)) {
 263                 DEBUG(1,("Cannot connect to server using kerberos.  Error was %s\n", nt_errstr(nt_status)));
 264                 return nt_status;
 265         }
 266
 267         if (c->smb_encrypt) {
 268                 nt_status = cli_cm_force_encryption(*cli_ctx,
 269                                         user_and_realm,
 270                                         c->opt_password,
 271                                         c->opt_workgroup,
 272                                         "IPC$");
 273                 if (!NT_STATUS_IS_OK(nt_status)) {
 274                         cli_shutdown(*cli_ctx);
 275                         *cli_ctx = NULL;
 276                 }
 277         }
 278
 279         return nt_status;
 280 }
 281
 282 /**
 283  * Connect a server and open a given pipe
 284  *
 285  * @param cli_dst               A cli_state
 286  * @param pipe                  The pipe to open
 287  * @param got_pipe              boolean that stores if we got a pipe
 288  *
 289  * @return Normal NTSTATUS return.
 290  **/
 291 NTSTATUS connect_dst_pipe(struct net_context *c, struct cli_state **cli_dst,
 292                           struct rpc_pipe_client **pp_pipe_hnd,
 293                           const struct ndr_syntax_id *interface)
 294 {
 295         NTSTATUS nt_status;
 296         char *server_name = SMB_STRDUP("127.0.0.1");
 297         struct cli_state *cli_tmp = NULL;
 298         struct rpc_pipe_client *pipe_hnd = NULL;
 299
 300         if (server_name == NULL) {
 301                 return NT_STATUS_NO_MEMORY;
 302         }
 303
 304         if (c->opt_destination) {
 305                 SAFE_FREE(server_name);
 306                 if ((server_name = SMB_STRDUP(c->opt_destination)) == NULL) {
 307                         return NT_STATUS_NO_MEMORY;
 308                 }
 309         }
 310
 311         /* make a connection to a named pipe */
 312         nt_status = connect_to_ipc(c, &cli_tmp, NULL, server_name);
 313         if (!NT_STATUS_IS_OK(nt_status)) {
 314                 SAFE_FREE(server_name);
 315                 return nt_status;
 316         }
 317
 318         nt_status = cli_rpc_pipe_open_noauth(cli_tmp, interface,
 319                                              &pipe_hnd);
 320         if (!NT_STATUS_IS_OK(nt_status)) {
 321                 DEBUG(0, ("couldn't not initialize pipe\n"));
 322                 cli_shutdown(cli_tmp);
 323                 SAFE_FREE(server_name);
 324                 return nt_status;
 325         }
 326
 327         *cli_dst = cli_tmp;
 328         *pp_pipe_hnd = pipe_hnd;
 329         SAFE_FREE(server_name);
 330
 331         return nt_status;
 332 }
 333
 334 /****************************************************************************
 335  Use the local machine account (krb) and password for this session.
 336 ****************************************************************************/
 337
 338 int net_use_krb_machine_account(struct net_context *c)
 339 {
 340         char *user_name = NULL;
 341
 342         if (!secrets_init()) {
 343                 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
 344                 exit(1);
 345         }
 346
 347         c->opt_password = secrets_fetch_machine_password(
 348                                 c->opt_target_workgroup, NULL, NULL);
 349         if (asprintf(&user_name, "%s$@%s", global_myname(), lp_realm()) == -1) {
 350                 return -1;
 351         }
 352         c->opt_user_name = user_name;
 353         return 0;
 354 }
 355
 356 /****************************************************************************
 357  Use the machine account name and password for this session.
 358 ****************************************************************************/
 359
 360 int net_use_machine_account(struct net_context *c)
 361 {
 362         char *user_name = NULL;
 363
 364         if (!secrets_init()) {
 365                 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
 366                 exit(1);
 367         }
 368
 369         c->opt_password = secrets_fetch_machine_password(
 370                                 c->opt_target_workgroup, NULL, NULL);
 371         if (asprintf(&user_name, "%s$", global_myname()) == -1) {
 372                 return -1;
 373         }
 374         c->opt_user_name = user_name;
 375         return 0;
 376 }
 377
 378 bool net_find_server(struct net_context *c,
 379                         const char *domain,
 380                         unsigned flags,
 381                         struct sockaddr_storage *server_ss,
 382                         char **server_name)
 383 {
 384         const char *d = domain ? domain : c->opt_target_workgroup;
 385
 386         if (c->opt_host) {
 387                 *server_name = SMB_STRDUP(c->opt_host);
 388         }
 389
 390         if (c->opt_have_ip) {
 391                 *server_ss = c->opt_dest_ip;
 392                 if (!*server_name) {
 393                         char addr[INET6_ADDRSTRLEN];
 394                         print_sockaddr(addr, sizeof(addr), &c->opt_dest_ip);
 395                         *server_name = SMB_STRDUP(addr);
 396                 }
 397         } else if (*server_name) {
 398                 /* resolve the IP address */
 399                 if (!resolve_name(*server_name, server_ss, 0x20, false))  {
 400                         DEBUG(1,("Unable to resolve server name\n"));
 401                         return false;
 402                 }
 403         } else if (flags & NET_FLAGS_PDC) {
 404                 fstring dc_name;
 405                 struct sockaddr_storage pdc_ss;
 406
 407                 if (!get_pdc_ip(d, &pdc_ss)) {
 408                         DEBUG(1,("Unable to resolve PDC server address\n"));
 409                         return false;
 410                 }
 411
 412                 if (is_zero_addr((struct sockaddr *)&pdc_ss)) {
 413                         return false;
 414                 }
 415
 416                 if (!name_status_find(d, 0x1b, 0x20, &pdc_ss, dc_name)) {
 417                         return false;
 418                 }
 419
 420                 *server_name = SMB_STRDUP(dc_name);
 421                 *server_ss = pdc_ss;
 422         } else if (flags & NET_FLAGS_DMB) {
 423                 struct sockaddr_storage msbrow_ss;
 424                 char addr[INET6_ADDRSTRLEN];
 425
 426                 /*  if (!resolve_name(MSBROWSE, &msbrow_ip, 1, false)) */
 427                 if (!resolve_name(d, &msbrow_ss, 0x1B, false))  {
 428                         DEBUG(1,("Unable to resolve domain browser via name lookup\n"));
 429                         return false;
 430                 }
 431                 *server_ss = msbrow_ss;
 432                 print_sockaddr(addr, sizeof(addr), server_ss);
 433                 *server_name = SMB_STRDUP(addr);
 434         } else if (flags & NET_FLAGS_MASTER) {
 435                 struct sockaddr_storage brow_ss;
 436                 char addr[INET6_ADDRSTRLEN];
 437                 if (!resolve_name(d, &brow_ss, 0x1D, false))  {
 438                                 /* go looking for workgroups */
 439                         DEBUG(1,("Unable to resolve master browser via name lookup\n"));
 440                         return false;
 441                 }
 442                 *server_ss = brow_ss;
 443                 print_sockaddr(addr, sizeof(addr), server_ss);
 444                 *server_name = SMB_STRDUP(addr);
 445         } else if (!(flags & NET_FLAGS_LOCALHOST_DEFAULT_INSANE)) {
 446                 if (!interpret_string_addr(server_ss,
 447                                         "127.0.0.1", AI_NUMERICHOST)) {
 448                         DEBUG(1,("Unable to resolve 127.0.0.1\n"));
 449                         return false;
 450                 }
 451                 *server_name = SMB_STRDUP("127.0.0.1");
 452         }
 453
 454         if (!*server_name) {
 455                 DEBUG(1,("no server to connect to\n"));
 456                 return false;
 457         }
 458
 459         return true;
 460 }
 461
 462 bool net_find_pdc(struct sockaddr_storage *server_ss,
 463                 fstring server_name,
 464                 const char *domain_name)
 465 {
 466         if (!get_pdc_ip(domain_name, server_ss)) {
 467                 return false;
 468         }
 469         if (is_zero_addr((struct sockaddr *)server_ss)) {
 470                 return false;
 471         }
 472
 473         if (!name_status_find(domain_name, 0x1b, 0x20, server_ss, server_name)) {
 474                 return false;
 475         }
 476
 477         return true;
 478 }
 479
 480 NTSTATUS net_make_ipc_connection(struct net_context *c, unsigned flags,
 481                                  struct cli_state **pcli)
 482 {
 483         return net_make_ipc_connection_ex(c, c->opt_workgroup, NULL, NULL, flags, pcli);
 484 }
 485
 486 NTSTATUS net_make_ipc_connection_ex(struct net_context *c ,const char *domain,
 487                                     const char *server,
 488                                     struct sockaddr_storage *pss,
 489                                     unsigned flags, struct cli_state **pcli)
 490 {
 491         char *server_name = NULL;
 492         struct sockaddr_storage server_ss;
 493         struct cli_state *cli = NULL;
 494         NTSTATUS nt_status;
 495
 496         if ( !server || !pss ) {
 497                 if (!net_find_server(c, domain, flags, &server_ss,
 498                                      &server_name)) {
 499                         d_fprintf(stderr, _("Unable to find a suitable server "
 500                                 "for domain %s\n"), domain);
 501                         nt_status = NT_STATUS_UNSUCCESSFUL;
 502                         goto done;
 503                 }
 504         } else {
 505                 server_name = SMB_STRDUP( server );
 506                 server_ss = *pss;
 507         }
 508
 509         if (flags & NET_FLAGS_ANONYMOUS) {
 510                 nt_status = connect_to_ipc_anonymous(c, &cli, &server_ss,
 511                                                      server_name);
 512         } else {
 513                 nt_status = connect_to_ipc(c, &cli, &server_ss,
 514                                            server_name);
 515         }
 516
 517         /* store the server in the affinity cache if it was a PDC */
 518
 519         if ( (flags & NET_FLAGS_PDC) && NT_STATUS_IS_OK(nt_status) )
 520                 saf_store( cli->server_domain, cli->desthost );
 521
 522         SAFE_FREE(server_name);
 523         if (!NT_STATUS_IS_OK(nt_status)) {
 524                 d_fprintf(stderr, _("Connection failed: %s\n"),
 525                           nt_errstr(nt_status));
 526                 cli = NULL;
 527         } else if (c->opt_request_timeout) {
 528                 cli_set_timeout(cli, c->opt_request_timeout * 1000);
 529         }
 530
 531 done:
 532         if (pcli != NULL) {
 533                 *pcli = cli;
 534         }
 535         return nt_status;
 536 }
 537
 538 /****************************************************************************
 539 ****************************************************************************/
 540
 541 const char *net_prompt_pass(struct net_context *c, const char *user)
 542 {
 543         char *prompt = NULL;
 544         const char *pass = NULL;
 545
 546         if (c->opt_password) {
 547                 return c->opt_password;
 548         }
 549
 550         if (c->opt_machine_pass) {
 551                 return NULL;
 552         }
 553
 554         if (c->opt_kerberos && !c->opt_user_specified) {
 555                 return NULL;
 556         }
 557
 558         if (asprintf(&prompt, _("Enter %s's password:"), user) == -1) {
 559                 return NULL;
 560         }
 561
 562         pass = getpass(prompt);
 563         SAFE_FREE(prompt);
 564
 565         return pass;
 566 }
 567
 568 int net_run_function(struct net_context *c, int argc, const char **argv,
 569                       const char *whoami, struct functable *table)
 570 {
 571         int i;
 572
 573         if (argc != 0) {
 574                 for (i=0; table[i].funcname != NULL; i++) {
 575                         if (StrCaseCmp(argv[0], table[i].funcname) == 0)
 576                                 return table[i].fn(c, argc-1, argv+1);
 577                 }
 578         }
 579
 580         if (c->display_usage == false) {
 581                 d_fprintf(stderr, _("Invalid command: %s %s\n"), whoami,
 582                           (argc > 0)?argv[0]:"");
 583         }
 584         d_printf("Usage:\n");
 585         for (i=0; table[i].funcname != NULL; i++) {
 586                 if(c->display_usage == false)
 587                         d_printf("%s %-15s %s\n", whoami, table[i].funcname,
 588                                  table[i].description);
 589                 else
 590                         d_printf("%s\n", table[i].usage);
 591         }
 592
 593         return c->display_usage?0:-1;
 594 }
 595
 596 void net_display_usage_from_functable(struct functable *table)
 597 {
 598         int i;
 599         for (i=0; table[i].funcname != NULL; i++) {
 600                 d_printf("%s\n", table[i].usage);
 601         }
 602 }
 603
 604 const char *net_share_type_str(int num_type)
 605 {
 606         switch(num_type) {
 607                 case 0: return _("Disk");
 608                 case 1: return _("Print");
 609                 case 2: return _("Dev");
 610                 case 3: return _("IPC");
 611                 default: return _("Unknown");
 612         }
 613 }
 614
 615 NTSTATUS net_scan_dc(struct net_context *c,
 616                      struct cli_state *cli,
 617                      struct net_dc_info *dc_info)
 618 {
 619         TALLOC_CTX *mem_ctx = talloc_tos();
 620         struct rpc_pipe_client *dssetup_pipe = NULL;
 621         union dssetup_DsRoleInfo info;
 622         NTSTATUS status;
 623
 624         ZERO_STRUCTP(dc_info);
 625
 626         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_dssetup.syntax_id,
 627                                           &dssetup_pipe);
 628         if (!NT_STATUS_IS_OK(status)) {
 629                 return status;
 630         }
 631
 632         status = rpccli_dssetup_DsRoleGetPrimaryDomainInformation(dssetup_pipe, mem_ctx,
 633                                                                   DS_ROLE_BASIC_INFORMATION,
 634                                                                   &info,
 635                                                                   NULL);
 636         TALLOC_FREE(dssetup_pipe);
 637
 638         if (!NT_STATUS_IS_OK(status)) {
 639                 return status;
 640         }
 641
 642         dc_info->is_dc  = (info.basic.role & (DS_ROLE_PRIMARY_DC|DS_ROLE_BACKUP_DC));
 643         dc_info->is_pdc = (info.basic.role & DS_ROLE_PRIMARY_DC);
 644         dc_info->is_ad  = (info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING);
 645         dc_info->is_mixed_mode = (info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE);
 646         dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info.basic.domain);
 647         dc_info->dns_domain_name = talloc_strdup(mem_ctx, info.basic.dns_domain);
 648         dc_info->forest_name = talloc_strdup(mem_ctx, info.basic.forest);
 649
 650         return NT_STATUS_OK;
 651 }