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 #include "rpc_client/cli_pipe.h"
  25 #include "../librpc/gen_ndr/ndr_lsa_c.h"
  26 #include "rpc_client/cli_lsarpc.h"
  27 #include "../librpc/gen_ndr/ndr_dssetup_c.h"
  28 #include "secrets.h"
  29 #include "../libcli/security/security.h"
  30 #include "libsmb/libsmb.h"
  31
  32 NTSTATUS net_rpc_lookup_name(struct net_context *c,
  33                              TALLOC_CTX *mem_ctx, struct cli_state *cli,
  34                              const char *name, const char **ret_domain,
  35                              const char **ret_name, struct dom_sid *ret_sid,
  36                              enum lsa_SidType *ret_type)
  37 {
  38         struct rpc_pipe_client *lsa_pipe = NULL;
  39         struct policy_handle pol;
  40         NTSTATUS status, result;
  41         const char **dom_names;
  42         struct dom_sid *sids;
  43         enum lsa_SidType *types;
  44         struct dcerpc_binding_handle *b;
  45
  46         ZERO_STRUCT(pol);
  47
  48         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
  49                                           &lsa_pipe);
  50         if (!NT_STATUS_IS_OK(status)) {
  51                 d_fprintf(stderr, _("Could not initialise lsa pipe\n"));
  52                 return status;
  53         }
  54
  55         b = lsa_pipe->binding_handle;
  56
  57         status = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, false,
  58                                         SEC_FLAG_MAXIMUM_ALLOWED,
  59                                         &pol);
  60         if (!NT_STATUS_IS_OK(status)) {
  61                 d_fprintf(stderr, "open_policy %s: %s\n", _("failed"),
  62                           nt_errstr(status));
  63                 return status;
  64         }
  65
  66         status = rpccli_lsa_lookup_names(lsa_pipe, mem_ctx, &pol, 1,
  67                                          &name, &dom_names, 1, &sids, &types);
  68
  69         if (!NT_STATUS_IS_OK(status)) {
  70                 /* This can happen easily, don't log an error */
  71                 goto done;
  72         }
  73
  74         if (ret_domain != NULL) {
  75                 *ret_domain = dom_names[0];
  76         }
  77         if (ret_name != NULL) {
  78                 *ret_name = talloc_strdup(mem_ctx, name);
  79         }
  80         if (ret_sid != NULL) {
  81                 sid_copy(ret_sid, &sids[0]);
  82         }
  83         if (ret_type != NULL) {
  84                 *ret_type = types[0];
  85         }
  86
  87  done:
  88         if (is_valid_policy_hnd(&pol)) {
  89                 dcerpc_lsa_Close(b, mem_ctx, &pol, &result);
  90         }
  91         TALLOC_FREE(lsa_pipe);
  92
  93         return status;
  94 }
  95
  96 /****************************************************************************
  97  Connect to \\server\service.
  98 ****************************************************************************/
  99
 100 NTSTATUS connect_to_service(struct net_context *c,
 101                                         struct cli_state **cli_ctx,
 102                                         struct sockaddr_storage *server_ss,
 103                                         const char *server_name,
 104                                         const char *service_name,
 105                                         const char *service_type)
 106 {
 107         NTSTATUS nt_status;
 108         int flags = 0;
 109
 110         c->opt_password = net_prompt_pass(c, c->opt_user_name);
 111
 112         if (c->opt_kerberos) {
 113                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 114         }
 115
 116         if (c->opt_kerberos && c->opt_password) {
 117                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 118         }
 119
 120         if (c->opt_ccache) {
 121                 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
 122         }
 123
 124         nt_status = cli_full_connection(cli_ctx, NULL, server_name,
 125                                         server_ss, c->opt_port,
 126                                         service_name, service_type,
 127                                         c->opt_user_name, c->opt_workgroup,
 128                                         c->opt_password, flags, Undefined);
 129         if (!NT_STATUS_IS_OK(nt_status)) {
 130                 d_fprintf(stderr, _("Could not connect to server %s\n"),
 131                           server_name);
 132
 133                 /* Display a nicer message depending on the result */
 134
 135                 if (NT_STATUS_V(nt_status) ==
 136                     NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
 137                         d_fprintf(stderr,
 138                                   _("The username or password was not "
 139                                     "correct.\n"));
 140
 141                 if (NT_STATUS_V(nt_status) ==
 142                     NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
 143                         d_fprintf(stderr, _("The account was locked out.\n"));
 144
 145                 if (NT_STATUS_V(nt_status) ==
 146                     NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
 147                         d_fprintf(stderr, _("The account was disabled.\n"));
 148                 return nt_status;
 149         }
 150
 151         if (c->smb_encrypt) {
 152                 nt_status = cli_force_encryption(*cli_ctx,
 153                                         c->opt_user_name,
 154                                         c->opt_password,
 155                                         c->opt_workgroup);
 156
 157                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_NOT_SUPPORTED)) {
 158                         d_printf(_("Encryption required and "
 159                                 "server that doesn't support "
 160                                 "UNIX extensions - failing connect\n"));
 161                 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNKNOWN_REVISION)) {
 162                         d_printf(_("Encryption required and "
 163                                 "can't get UNIX CIFS extensions "
 164                                 "version from server.\n"));
 165                 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
 166                         d_printf(_("Encryption required and "
 167                                 "share %s doesn't support "
 168                                 "encryption.\n"), service_name);
 169                 } else if (!NT_STATUS_IS_OK(nt_status)) {
 170                         d_printf(_("Encryption required and "
 171                                 "setup failed with error %s.\n"),
 172                                 nt_errstr(nt_status));
 173                 }
 174
 175                 if (!NT_STATUS_IS_OK(nt_status)) {
 176                         cli_shutdown(*cli_ctx);
 177                         *cli_ctx = NULL;
 178                 }
 179         }
 180
 181         return nt_status;
 182 }
 183
 184 /****************************************************************************
 185  Connect to \\server\ipc$.
 186 ****************************************************************************/
 187
 188 NTSTATUS connect_to_ipc(struct net_context *c,
 189                         struct cli_state **cli_ctx,
 190                         struct sockaddr_storage *server_ss,
 191                         const char *server_name)
 192 {
 193         return connect_to_service(c, cli_ctx, server_ss, server_name, "IPC$",
 194                                   "IPC");
 195 }
 196
 197 /****************************************************************************
 198  Connect to \\server\ipc$ anonymously.
 199 ****************************************************************************/
 200
 201 NTSTATUS connect_to_ipc_anonymous(struct net_context *c,
 202                                 struct cli_state **cli_ctx,
 203                                 struct sockaddr_storage *server_ss,
 204                                 const char *server_name)
 205 {
 206         NTSTATUS nt_status;
 207
 208         nt_status = cli_full_connection(cli_ctx, c->opt_requester_name,
 209                                         server_name, server_ss, c->opt_port,
 210                                         "IPC$", "IPC",
 211                                         "", "",
 212                                         "", 0, Undefined);
 213
 214         if (NT_STATUS_IS_OK(nt_status)) {
 215                 return nt_status;
 216         } else {
 217                 DEBUG(1,("Cannot connect to server (anonymously).  Error was %s\n", nt_errstr(nt_status)));
 218                 return nt_status;
 219         }
 220 }
 221
 222 /****************************************************************************
 223  Return malloced user@realm for krb5 login.
 224 ****************************************************************************/
 225
 226 static char *get_user_and_realm(const char *username)
 227 {
 228         char *user_and_realm = NULL;
 229
 230         if (!username) {
 231                 return NULL;
 232         }
 233         if (strchr_m(username, '@')) {
 234                 user_and_realm = SMB_STRDUP(username);
 235         } else {
 236                 if (asprintf(&user_and_realm, "%s@%s", username, lp_realm()) == -1) {
 237                         user_and_realm = NULL;
 238                 }
 239         }
 240         return user_and_realm;
 241 }
 242
 243 /****************************************************************************
 244  Connect to \\server\ipc$ using KRB5.
 245 ****************************************************************************/
 246
 247 NTSTATUS connect_to_ipc_krb5(struct net_context *c,
 248                         struct cli_state **cli_ctx,
 249                         struct sockaddr_storage *server_ss,
 250                         const char *server_name)
 251 {
 252         NTSTATUS nt_status;
 253         char *user_and_realm = NULL;
 254
 255         /* FIXME: Should get existing kerberos ticket if possible. */
 256         c->opt_password = net_prompt_pass(c, c->opt_user_name);
 257         if (!c->opt_password) {
 258                 return NT_STATUS_NO_MEMORY;
 259         }
 260
 261         user_and_realm = get_user_and_realm(c->opt_user_name);
 262         if (!user_and_realm) {
 263                 return NT_STATUS_NO_MEMORY;
 264         }
 265
 266         nt_status = cli_full_connection(cli_ctx, NULL, server_name,
 267                                         server_ss, c->opt_port,
 268                                         "IPC$", "IPC",
 269                                         user_and_realm, c->opt_workgroup,
 270                                         c->opt_password,
 271                                         CLI_FULL_CONNECTION_USE_KERBEROS,
 272                                         Undefined);
 273
 274         SAFE_FREE(user_and_realm);
 275
 276         if (!NT_STATUS_IS_OK(nt_status)) {
 277                 DEBUG(1,("Cannot connect to server using kerberos.  Error was %s\n", nt_errstr(nt_status)));
 278                 return nt_status;
 279         }
 280
 281         if (c->smb_encrypt) {
 282                 nt_status = cli_cm_force_encryption(*cli_ctx,
 283                                         user_and_realm,
 284                                         c->opt_password,
 285                                         c->opt_workgroup,
 286                                         "IPC$");
 287                 if (!NT_STATUS_IS_OK(nt_status)) {
 288                         cli_shutdown(*cli_ctx);
 289                         *cli_ctx = NULL;
 290                 }
 291         }
 292
 293         return nt_status;
 294 }
 295
 296 /**
 297  * Connect a server and open a given pipe
 298  *
 299  * @param cli_dst               A cli_state
 300  * @param pipe                  The pipe to open
 301  * @param got_pipe              boolean that stores if we got a pipe
 302  *
 303  * @return Normal NTSTATUS return.
 304  **/
 305 NTSTATUS connect_dst_pipe(struct net_context *c, struct cli_state **cli_dst,
 306                           struct rpc_pipe_client **pp_pipe_hnd,
 307                           const struct ndr_syntax_id *interface)
 308 {
 309         NTSTATUS nt_status;
 310         char *server_name = SMB_STRDUP("127.0.0.1");
 311         struct cli_state *cli_tmp = NULL;
 312         struct rpc_pipe_client *pipe_hnd = NULL;
 313
 314         if (server_name == NULL) {
 315                 return NT_STATUS_NO_MEMORY;
 316         }
 317
 318         if (c->opt_destination) {
 319                 SAFE_FREE(server_name);
 320                 if ((server_name = SMB_STRDUP(c->opt_destination)) == NULL) {
 321                         return NT_STATUS_NO_MEMORY;
 322                 }
 323         }
 324
 325         /* make a connection to a named pipe */
 326         nt_status = connect_to_ipc(c, &cli_tmp, NULL, server_name);
 327         if (!NT_STATUS_IS_OK(nt_status)) {
 328                 SAFE_FREE(server_name);
 329                 return nt_status;
 330         }
 331
 332         nt_status = cli_rpc_pipe_open_noauth(cli_tmp, interface,
 333                                              &pipe_hnd);
 334         if (!NT_STATUS_IS_OK(nt_status)) {
 335                 DEBUG(0, ("couldn't not initialize pipe\n"));
 336                 cli_shutdown(cli_tmp);
 337                 SAFE_FREE(server_name);
 338                 return nt_status;
 339         }
 340
 341         *cli_dst = cli_tmp;
 342         *pp_pipe_hnd = pipe_hnd;
 343         SAFE_FREE(server_name);
 344
 345         return nt_status;
 346 }
 347
 348 /****************************************************************************
 349  Use the local machine account (krb) and password for this session.
 350 ****************************************************************************/
 351
 352 int net_use_krb_machine_account(struct net_context *c)
 353 {
 354         char *user_name = NULL;
 355
 356         if (!secrets_init()) {
 357                 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
 358                 exit(1);
 359         }
 360
 361         c->opt_password = secrets_fetch_machine_password(
 362                                 c->opt_target_workgroup, NULL, NULL);
 363         if (asprintf(&user_name, "%s$@%s", global_myname(), lp_realm()) == -1) {
 364                 return -1;
 365         }
 366         c->opt_user_name = user_name;
 367         return 0;
 368 }
 369
 370 /****************************************************************************
 371  Use the machine account name and password for this session.
 372 ****************************************************************************/
 373
 374 int net_use_machine_account(struct net_context *c)
 375 {
 376         char *user_name = NULL;
 377
 378         if (!secrets_init()) {
 379                 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
 380                 exit(1);
 381         }
 382
 383         c->opt_password = secrets_fetch_machine_password(
 384                                 c->opt_target_workgroup, NULL, NULL);
 385         if (asprintf(&user_name, "%s$", global_myname()) == -1) {
 386                 return -1;
 387         }
 388         c->opt_user_name = user_name;
 389         return 0;
 390 }
 391
 392 bool net_find_server(struct net_context *c,
 393                         const char *domain,
 394                         unsigned flags,
 395                         struct sockaddr_storage *server_ss,
 396                         char **server_name)
 397 {
 398         const char *d = domain ? domain : c->opt_target_workgroup;
 399
 400         if (c->opt_host) {
 401                 *server_name = SMB_STRDUP(c->opt_host);
 402         }
 403
 404         if (c->opt_have_ip) {
 405                 *server_ss = c->opt_dest_ip;
 406                 if (!*server_name) {
 407                         char addr[INET6_ADDRSTRLEN];
 408                         print_sockaddr(addr, sizeof(addr), &c->opt_dest_ip);
 409                         *server_name = SMB_STRDUP(addr);
 410                 }
 411         } else if (*server_name) {
 412                 /* resolve the IP address */
 413                 if (!resolve_name(*server_name, server_ss, 0x20, false))  {
 414                         DEBUG(1,("Unable to resolve server name\n"));
 415                         return false;
 416                 }
 417         } else if (flags & NET_FLAGS_PDC) {
 418                 fstring dc_name;
 419                 struct sockaddr_storage pdc_ss;
 420
 421                 if (!get_pdc_ip(d, &pdc_ss)) {
 422                         DEBUG(1,("Unable to resolve PDC server address\n"));
 423                         return false;
 424                 }
 425
 426                 if (is_zero_addr(&pdc_ss)) {
 427                         return false;
 428                 }
 429
 430                 if (!name_status_find(d, 0x1b, 0x20, &pdc_ss, dc_name)) {
 431                         return false;
 432                 }
 433
 434                 *server_name = SMB_STRDUP(dc_name);
 435                 *server_ss = pdc_ss;
 436         } else if (flags & NET_FLAGS_DMB) {
 437                 struct sockaddr_storage msbrow_ss;
 438                 char addr[INET6_ADDRSTRLEN];
 439
 440                 /*  if (!resolve_name(MSBROWSE, &msbrow_ip, 1, false)) */
 441                 if (!resolve_name(d, &msbrow_ss, 0x1B, false))  {
 442                         DEBUG(1,("Unable to resolve domain browser via name lookup\n"));
 443                         return false;
 444                 }
 445                 *server_ss = msbrow_ss;
 446                 print_sockaddr(addr, sizeof(addr), server_ss);
 447                 *server_name = SMB_STRDUP(addr);
 448         } else if (flags & NET_FLAGS_MASTER) {
 449                 struct sockaddr_storage brow_ss;
 450                 char addr[INET6_ADDRSTRLEN];
 451                 if (!resolve_name(d, &brow_ss, 0x1D, false))  {
 452                                 /* go looking for workgroups */
 453                         DEBUG(1,("Unable to resolve master browser via name lookup\n"));
 454                         return false;
 455                 }
 456                 *server_ss = brow_ss;
 457                 print_sockaddr(addr, sizeof(addr), server_ss);
 458                 *server_name = SMB_STRDUP(addr);
 459         } else if (!(flags & NET_FLAGS_LOCALHOST_DEFAULT_INSANE)) {
 460                 if (!interpret_string_addr(server_ss,
 461                                         "127.0.0.1", AI_NUMERICHOST)) {
 462                         DEBUG(1,("Unable to resolve 127.0.0.1\n"));
 463                         return false;
 464                 }
 465                 *server_name = SMB_STRDUP("127.0.0.1");
 466         }
 467
 468         if (!*server_name) {
 469                 DEBUG(1,("no server to connect to\n"));
 470                 return false;
 471         }
 472
 473         return true;
 474 }
 475
 476 bool net_find_pdc(struct sockaddr_storage *server_ss,
 477                 fstring server_name,
 478                 const char *domain_name)
 479 {
 480         if (!get_pdc_ip(domain_name, server_ss)) {
 481                 return false;
 482         }
 483         if (is_zero_addr(server_ss)) {
 484                 return false;
 485         }
 486
 487         if (!name_status_find(domain_name, 0x1b, 0x20, server_ss, server_name)) {
 488                 return false;
 489         }
 490
 491         return true;
 492 }
 493
 494 NTSTATUS net_make_ipc_connection(struct net_context *c, unsigned flags,
 495                                  struct cli_state **pcli)
 496 {
 497         return net_make_ipc_connection_ex(c, c->opt_workgroup, NULL, NULL, flags, pcli);
 498 }
 499
 500 NTSTATUS net_make_ipc_connection_ex(struct net_context *c ,const char *domain,
 501                                     const char *server,
 502                                     struct sockaddr_storage *pss,
 503                                     unsigned flags, struct cli_state **pcli)
 504 {
 505         char *server_name = NULL;
 506         struct sockaddr_storage server_ss;
 507         struct cli_state *cli = NULL;
 508         NTSTATUS nt_status;
 509
 510         if ( !server || !pss ) {
 511                 if (!net_find_server(c, domain, flags, &server_ss,
 512                                      &server_name)) {
 513                         d_fprintf(stderr, _("Unable to find a suitable server "
 514                                 "for domain %s\n"), domain);
 515                         nt_status = NT_STATUS_UNSUCCESSFUL;
 516                         goto done;
 517                 }
 518         } else {
 519                 server_name = SMB_STRDUP( server );
 520                 server_ss = *pss;
 521         }
 522
 523         if (flags & NET_FLAGS_ANONYMOUS) {
 524                 nt_status = connect_to_ipc_anonymous(c, &cli, &server_ss,
 525                                                      server_name);
 526         } else {
 527                 nt_status = connect_to_ipc(c, &cli, &server_ss,
 528                                            server_name);
 529         }
 530
 531         /* store the server in the affinity cache if it was a PDC */
 532
 533         if ( (flags & NET_FLAGS_PDC) && NT_STATUS_IS_OK(nt_status) )
 534                 saf_store( cli->server_domain, cli->desthost );
 535
 536         SAFE_FREE(server_name);
 537         if (!NT_STATUS_IS_OK(nt_status)) {
 538                 d_fprintf(stderr, _("Connection failed: %s\n"),
 539                           nt_errstr(nt_status));
 540                 cli = NULL;
 541         } else if (c->opt_request_timeout) {
 542                 cli_set_timeout(cli, c->opt_request_timeout * 1000);
 543         }
 544
 545 done:
 546         if (pcli != NULL) {
 547                 *pcli = cli;
 548         }
 549         return nt_status;
 550 }
 551
 552 /****************************************************************************
 553 ****************************************************************************/
 554
 555 const char *net_prompt_pass(struct net_context *c, const char *user)
 556 {
 557         char *prompt = NULL;
 558         const char *pass = NULL;
 559
 560         if (c->opt_password) {
 561                 return c->opt_password;
 562         }
 563
 564         if (c->opt_machine_pass) {
 565                 return NULL;
 566         }
 567
 568         if (c->opt_kerberos && !c->opt_user_specified) {
 569                 return NULL;
 570         }
 571
 572         if (asprintf(&prompt, _("Enter %s's password:"), user) == -1) {
 573                 return NULL;
 574         }
 575
 576         pass = getpass(prompt);
 577         SAFE_FREE(prompt);
 578
 579         return pass;
 580 }
 581
 582 int net_run_function(struct net_context *c, int argc, const char **argv,
 583                       const char *whoami, struct functable *table)
 584 {
 585         int i;
 586
 587         if (argc != 0) {
 588                 for (i=0; table[i].funcname != NULL; i++) {
 589                         if (StrCaseCmp(argv[0], table[i].funcname) == 0)
 590                                 return table[i].fn(c, argc-1, argv+1);
 591                 }
 592         }
 593
 594         if (c->display_usage == false) {
 595                 d_fprintf(stderr, _("Invalid command: %s %s\n"), whoami,
 596                           (argc > 0)?argv[0]:"");
 597         }
 598         d_printf(_("Usage:\n"));
 599         for (i=0; table[i].funcname != NULL; i++) {
 600                 if(c->display_usage == false)
 601                         d_printf("%s %-15s %s\n", whoami, table[i].funcname,
 602                                  _(table[i].description));
 603                 else
 604                         d_printf("%s\n", _(table[i].usage));
 605         }
 606
 607         return c->display_usage?0:-1;
 608 }
 609
 610 void net_display_usage_from_functable(struct functable *table)
 611 {
 612         int i;
 613         for (i=0; table[i].funcname != NULL; i++) {
 614                 d_printf("%s\n", _(table[i].usage));
 615         }
 616 }
 617
 618 const char *net_share_type_str(int num_type)
 619 {
 620         switch(num_type) {
 621                 case 0: return _("Disk");
 622                 case 1: return _("Print");
 623                 case 2: return _("Dev");
 624                 case 3: return _("IPC");
 625                 default: return _("Unknown");
 626         }
 627 }
 628
 629 static NTSTATUS net_scan_dc_noad(struct net_context *c,
 630                                  struct cli_state *cli,
 631                                  struct net_dc_info *dc_info)
 632 {
 633         TALLOC_CTX *mem_ctx = talloc_tos();
 634         struct rpc_pipe_client *pipe_hnd = NULL;
 635         struct dcerpc_binding_handle *b;
 636         NTSTATUS status, result;
 637         struct policy_handle pol;
 638         union lsa_PolicyInformation *info;
 639
 640         ZERO_STRUCTP(dc_info);
 641         ZERO_STRUCT(pol);
 642
 643         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
 644                                           &pipe_hnd);
 645         if (!NT_STATUS_IS_OK(status)) {
 646                 return status;
 647         }
 648
 649         b = pipe_hnd->binding_handle;
 650
 651         status = dcerpc_lsa_open_policy(b, mem_ctx,
 652                                         false,
 653                                         SEC_FLAG_MAXIMUM_ALLOWED,
 654                                         &pol,
 655                                         &result);
 656         if (!NT_STATUS_IS_OK(status)) {
 657                 goto done;
 658         }
 659         if (!NT_STATUS_IS_OK(result)) {
 660                 status = result;
 661                 goto done;
 662         }
 663
 664         status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
 665                                             &pol,
 666                                             LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 667                                             &info,
 668                                             &result);
 669         if (!NT_STATUS_IS_OK(status)) {
 670                 goto done;
 671         }
 672         if (!NT_STATUS_IS_OK(result)) {
 673                 status = result;
 674                 goto done;
 675         }
 676
 677         dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info->account_domain.name.string);
 678         if (dc_info->netbios_domain_name == NULL) {
 679                 status = NT_STATUS_NO_MEMORY;
 680                 goto done;
 681         }
 682
 683  done:
 684         if (is_valid_policy_hnd(&pol)) {
 685                 dcerpc_lsa_Close(b, mem_ctx, &pol, &result);
 686         }
 687
 688         TALLOC_FREE(pipe_hnd);
 689
 690         return status;
 691 }
 692
 693 NTSTATUS net_scan_dc(struct net_context *c,
 694                      struct cli_state *cli,
 695                      struct net_dc_info *dc_info)
 696 {
 697         TALLOC_CTX *mem_ctx = talloc_tos();
 698         struct rpc_pipe_client *dssetup_pipe = NULL;
 699         struct dcerpc_binding_handle *dssetup_handle = NULL;
 700         union dssetup_DsRoleInfo info;
 701         NTSTATUS status;
 702         WERROR werr;
 703
 704         ZERO_STRUCTP(dc_info);
 705
 706         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_dssetup.syntax_id,
 707                                           &dssetup_pipe);
 708         if (!NT_STATUS_IS_OK(status)) {
 709                 DEBUG(10,("net_scan_dc: failed to open dssetup pipe with %s, "
 710                         "retrying with lsa pipe\n", nt_errstr(status)));
 711                 return net_scan_dc_noad(c, cli, dc_info);
 712         }
 713         dssetup_handle = dssetup_pipe->binding_handle;
 714
 715         status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(dssetup_handle, mem_ctx,
 716                                                                   DS_ROLE_BASIC_INFORMATION,
 717                                                                   &info,
 718                                                                   &werr);
 719         TALLOC_FREE(dssetup_pipe);
 720
 721         if (NT_STATUS_IS_OK(status)) {
 722                 status = werror_to_ntstatus(werr);
 723         }
 724         if (!NT_STATUS_IS_OK(status)) {
 725                 return status;
 726         }
 727
 728         dc_info->is_dc  = (info.basic.role & (DS_ROLE_PRIMARY_DC|DS_ROLE_BACKUP_DC));
 729         dc_info->is_pdc = (info.basic.role & DS_ROLE_PRIMARY_DC);
 730         dc_info->is_ad  = (info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING);
 731         dc_info->is_mixed_mode = (info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE);
 732         dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info.basic.domain);
 733         dc_info->dns_domain_name = talloc_strdup(mem_ctx, info.basic.dns_domain);
 734         dc_info->forest_name = talloc_strdup(mem_ctx, info.basic.forest);
 735
 736         return NT_STATUS_OK;
 737 }