source3/libnet/libnet_join.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  libnet Join Support
   4  *  Copyright (C) Gerald (Jerry) Carter 2006
   5  *  Copyright (C) Guenther Deschner 2007-2008
   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 #include "includes.h"
  22 #include "libnet/libnet.h"
  23
  24 /****************************************************************
  25 ****************************************************************/
  26
  27 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  28         do { \
  29                 char *str = NULL; \
  30                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  31                 DEBUG(1,("libnet_Join:\n%s", str)); \
  32                 TALLOC_FREE(str); \
  33         } while (0)
  34
  35 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  36         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  37 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  38         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  39
  40 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  41         do { \
  42                 char *str = NULL; \
  43                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  44                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  45                 TALLOC_FREE(str); \
  46         } while (0)
  47
  48 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  49         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  50 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  51         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  52
  53 #define W_ERROR_NOT_OK_GOTO_DONE(x) do { \
  54         if (!W_ERROR_IS_OK(x)) {\
  55                 goto done;\
  56         }\
  57 } while (0)
  58
  59 /****************************************************************
  60 ****************************************************************/
  61
  62 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  63                                          struct libnet_JoinCtx *r,
  64                                          const char *format, ...)
  65 {
  66         va_list args;
  67
  68         if (r->out.error_string) {
  69                 return;
  70         }
  71
  72         va_start(args, format);
  73         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  74         va_end(args);
  75 }
  76
  77 /****************************************************************
  78 ****************************************************************/
  79
  80 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  81                                            struct libnet_UnjoinCtx *r,
  82                                            const char *format, ...)
  83 {
  84         va_list args;
  85
  86         if (r->out.error_string) {
  87                 return;
  88         }
  89
  90         va_start(args, format);
  91         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  92         va_end(args);
  93 }
  94
  95 #ifdef WITH_ADS
  96
  97 /****************************************************************
  98 ****************************************************************/
  99
 100 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 101                                      const char *netbios_domain_name,
 102                                      const char *dc_name,
 103                                      const char *user_name,
 104                                      const char *password,
 105                                      ADS_STRUCT **ads)
 106 {
 107         ADS_STATUS status;
 108         ADS_STRUCT *my_ads = NULL;
 109
 110         my_ads = ads_init(dns_domain_name,
 111                           netbios_domain_name,
 112                           dc_name);
 113         if (!my_ads) {
 114                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 115         }
 116
 117         if (user_name) {
 118                 SAFE_FREE(my_ads->auth.user_name);
 119                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 120         }
 121
 122         if (password) {
 123                 SAFE_FREE(my_ads->auth.password);
 124                 my_ads->auth.password = SMB_STRDUP(password);
 125         }
 126
 127         status = ads_connect_user_creds(my_ads);
 128         if (!ADS_ERR_OK(status)) {
 129                 ads_destroy(&my_ads);
 130                 return status;
 131         }
 132
 133         *ads = my_ads;
 134         return ADS_SUCCESS;
 135 }
 136
 137 /****************************************************************
 138 ****************************************************************/
 139
 140 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 141                                           struct libnet_JoinCtx *r)
 142 {
 143         ADS_STATUS status;
 144
 145         status = libnet_connect_ads(r->out.dns_domain_name,
 146                                     r->out.netbios_domain_name,
 147                                     r->in.dc_name,
 148                                     r->in.admin_account,
 149                                     r->in.admin_password,
 150                                     &r->in.ads);
 151         if (!ADS_ERR_OK(status)) {
 152                 libnet_join_set_error_string(mem_ctx, r,
 153                         "failed to connect to AD: %s",
 154                         ads_errstr(status));
 155                 return status;
 156         }
 157
 158         if (!r->out.netbios_domain_name) {
 159                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 160                                                            r->in.ads->server.workgroup);
 161                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 162         }
 163
 164         if (!r->out.dns_domain_name) {
 165                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 166                                                        r->in.ads->config.realm);
 167                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 168         }
 169
 170         r->out.domain_is_ad = true;
 171
 172         return ADS_SUCCESS;
 173 }
 174
 175 /****************************************************************
 176 ****************************************************************/
 177
 178 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 179                                             struct libnet_UnjoinCtx *r)
 180 {
 181         ADS_STATUS status;
 182
 183         status = libnet_connect_ads(r->in.domain_name,
 184                                     r->in.domain_name,
 185                                     r->in.dc_name,
 186                                     r->in.admin_account,
 187                                     r->in.admin_password,
 188                                     &r->in.ads);
 189         if (!ADS_ERR_OK(status)) {
 190                 libnet_unjoin_set_error_string(mem_ctx, r,
 191                         "failed to connect to AD: %s",
 192                         ads_errstr(status));
 193         }
 194
 195         return status;
 196 }
 197
 198 /****************************************************************
 199  join a domain using ADS (LDAP mods)
 200 ****************************************************************/
 201
 202 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 203                                                      struct libnet_JoinCtx *r)
 204 {
 205         ADS_STATUS status;
 206         LDAPMessage *res = NULL;
 207         const char *attrs[] = { "dn", NULL };
 208         bool moved = false;
 209
 210         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 211         if (!ADS_ERR_OK(status)) {
 212                 return status;
 213         }
 214
 215         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 216         if (!ADS_ERR_OK(status)) {
 217                 return status;
 218         }
 219
 220         if (ads_count_replies(r->in.ads, res) != 1) {
 221                 ads_msgfree(r->in.ads, res);
 222                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 223         }
 224
 225         ads_msgfree(r->in.ads, res);
 226
 227         /* Attempt to create the machine account and bail if this fails.
 228            Assume that the admin wants exactly what they requested */
 229
 230         status = ads_create_machine_acct(r->in.ads,
 231                                          r->in.machine_name,
 232                                          r->in.account_ou);
 233
 234         if (ADS_ERR_OK(status)) {
 235                 DEBUG(1,("machine account creation created\n"));
 236                 return status;
 237         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 238                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 239                 status = ADS_SUCCESS;
 240         }
 241
 242         if (!ADS_ERR_OK(status)) {
 243                 DEBUG(1,("machine account creation failed\n"));
 244                 return status;
 245         }
 246
 247         status = ads_move_machine_acct(r->in.ads,
 248                                        r->in.machine_name,
 249                                        r->in.account_ou,
 250                                        &moved);
 251         if (!ADS_ERR_OK(status)) {
 252                 DEBUG(1,("failure to locate/move pre-existing "
 253                         "machine account\n"));
 254                 return status;
 255         }
 256
 257         DEBUG(1,("The machine account %s the specified OU.\n",
 258                 moved ? "was moved into" : "already exists in"));
 259
 260         return status;
 261 }
 262
 263 /****************************************************************
 264 ****************************************************************/
 265
 266 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 267                                                     struct libnet_UnjoinCtx *r)
 268 {
 269         ADS_STATUS status;
 270
 271         if (!r->in.ads) {
 272                 return libnet_unjoin_connect_ads(mem_ctx, r);
 273         }
 274
 275         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 276         if (!ADS_ERR_OK(status)) {
 277                 libnet_unjoin_set_error_string(mem_ctx, r,
 278                         "failed to leave realm: %s",
 279                         ads_errstr(status));
 280                 return status;
 281         }
 282
 283         return ADS_SUCCESS;
 284 }
 285
 286 /****************************************************************
 287 ****************************************************************/
 288
 289 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 290                                                 struct libnet_JoinCtx *r)
 291 {
 292         ADS_STATUS status;
 293         LDAPMessage *res = NULL;
 294         char *dn = NULL;
 295
 296         if (!r->in.machine_name) {
 297                 return ADS_ERROR(LDAP_NO_MEMORY);
 298         }
 299
 300         status = ads_find_machine_acct(r->in.ads,
 301                                        &res,
 302                                        r->in.machine_name);
 303         if (!ADS_ERR_OK(status)) {
 304                 return status;
 305         }
 306
 307         if (ads_count_replies(r->in.ads, res) != 1) {
 308                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 309                 goto done;
 310         }
 311
 312         dn = ads_get_dn(r->in.ads, res);
 313         if (!dn) {
 314                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 315                 goto done;
 316         }
 317
 318         r->out.dn = talloc_strdup(mem_ctx, dn);
 319         if (!r->out.dn) {
 320                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 321                 goto done;
 322         }
 323
 324  done:
 325         ads_msgfree(r->in.ads, res);
 326         ads_memfree(r->in.ads, dn);
 327
 328         return status;
 329 }
 330
 331 /****************************************************************
 332  Set a machines dNSHostName and servicePrincipalName attributes
 333 ****************************************************************/
 334
 335 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 336                                               struct libnet_JoinCtx *r)
 337 {
 338         ADS_STATUS status;
 339         ADS_MODLIST mods;
 340         fstring my_fqdn;
 341         const char *spn_array[3] = {NULL, NULL, NULL};
 342         char *spn = NULL;
 343
 344         /* Find our DN */
 345
 346         status = libnet_join_find_machine_acct(mem_ctx, r);
 347         if (!ADS_ERR_OK(status)) {
 348                 return status;
 349         }
 350
 351         /* Windows only creates HOST/shortname & HOST/fqdn. */
 352
 353         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 354         if (!spn) {
 355                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 356         }
 357         strupper_m(spn);
 358         spn_array[0] = spn;
 359
 360         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 361             || (strchr(my_fqdn, '.') == NULL)) {
 362                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 363                              r->out.dns_domain_name);
 364         }
 365
 366         strlower_m(my_fqdn);
 367
 368         if (!strequal(my_fqdn, r->in.machine_name)) {
 369                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 370                 if (!spn) {
 371                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 372                 }
 373                 spn_array[1] = spn;
 374         }
 375
 376         mods = ads_init_mods(mem_ctx);
 377         if (!mods) {
 378                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 379         }
 380
 381         /* fields of primary importance */
 382
 383         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 384         if (!ADS_ERR_OK(status)) {
 385                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 386         }
 387
 388         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 389                                  spn_array);
 390         if (!ADS_ERR_OK(status)) {
 391                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 392         }
 393
 394         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 395 }
 396
 397 /****************************************************************
 398 ****************************************************************/
 399
 400 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 401                                               struct libnet_JoinCtx *r)
 402 {
 403         ADS_STATUS status;
 404         ADS_MODLIST mods;
 405
 406         if (!r->in.create_upn) {
 407                 return ADS_SUCCESS;
 408         }
 409
 410         /* Find our DN */
 411
 412         status = libnet_join_find_machine_acct(mem_ctx, r);
 413         if (!ADS_ERR_OK(status)) {
 414                 return status;
 415         }
 416
 417         if (!r->in.upn) {
 418                 r->in.upn = talloc_asprintf(mem_ctx,
 419                                             "host/%s@%s",
 420                                             r->in.machine_name,
 421                                             r->out.dns_domain_name);
 422                 if (!r->in.upn) {
 423                         return ADS_ERROR(LDAP_NO_MEMORY);
 424                 }
 425         }
 426
 427         /* now do the mods */
 428
 429         mods = ads_init_mods(mem_ctx);
 430         if (!mods) {
 431                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 432         }
 433
 434         /* fields of primary importance */
 435
 436         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 437         if (!ADS_ERR_OK(status)) {
 438                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 439         }
 440
 441         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 442 }
 443
 444
 445 /****************************************************************
 446 ****************************************************************/
 447
 448 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 449                                                 struct libnet_JoinCtx *r)
 450 {
 451         ADS_STATUS status;
 452         ADS_MODLIST mods;
 453         char *os_sp = NULL;
 454
 455         if (!r->in.os_name || !r->in.os_version ) {
 456                 return ADS_SUCCESS;
 457         }
 458
 459         /* Find our DN */
 460
 461         status = libnet_join_find_machine_acct(mem_ctx, r);
 462         if (!ADS_ERR_OK(status)) {
 463                 return status;
 464         }
 465
 466         /* now do the mods */
 467
 468         mods = ads_init_mods(mem_ctx);
 469         if (!mods) {
 470                 return ADS_ERROR(LDAP_NO_MEMORY);
 471         }
 472
 473         os_sp = talloc_asprintf(mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
 474         if (!os_sp) {
 475                 return ADS_ERROR(LDAP_NO_MEMORY);
 476         }
 477
 478         /* fields of primary importance */
 479
 480         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 481                              r->in.os_name);
 482         if (!ADS_ERR_OK(status)) {
 483                 return status;
 484         }
 485
 486         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 487                              r->in.os_version);
 488         if (!ADS_ERR_OK(status)) {
 489                 return status;
 490         }
 491
 492         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 493                              os_sp);
 494         if (!ADS_ERR_OK(status)) {
 495                 return status;
 496         }
 497
 498         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 499 }
 500
 501 /****************************************************************
 502 ****************************************************************/
 503
 504 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 505                                       struct libnet_JoinCtx *r)
 506 {
 507         if (!lp_use_kerberos_keytab()) {
 508                 return true;
 509         }
 510
 511         if (ads_keytab_create_default(r->in.ads) != 0) {
 512                 return false;
 513         }
 514
 515         return true;
 516 }
 517
 518 /****************************************************************
 519 ****************************************************************/
 520
 521 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 522                                                  struct libnet_JoinCtx *r)
 523 {
 524         uint32_t domain_func;
 525         ADS_STATUS status;
 526         const char *salt = NULL;
 527         char *std_salt = NULL;
 528
 529         status = ads_domain_func_level(r->in.ads, &domain_func);
 530         if (!ADS_ERR_OK(status)) {
 531                 libnet_join_set_error_string(mem_ctx, r,
 532                         "failed to determine domain functional level: %s",
 533                         ads_errstr(status));
 534                 return false;
 535         }
 536
 537         /* go ahead and setup the default salt */
 538
 539         std_salt = kerberos_standard_des_salt();
 540         if (!std_salt) {
 541                 libnet_join_set_error_string(mem_ctx, r,
 542                         "failed to obtain standard DES salt");
 543                 return false;
 544         }
 545
 546         salt = talloc_strdup(mem_ctx, std_salt);
 547         if (!salt) {
 548                 return false;
 549         }
 550
 551         SAFE_FREE(std_salt);
 552
 553         /* if it's a Windows functional domain, we have to look for the UPN */
 554
 555         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 556                 char *upn;
 557
 558                 upn = ads_get_upn(r->in.ads, mem_ctx,
 559                                   r->in.machine_name);
 560                 if (upn) {
 561                         salt = talloc_strdup(mem_ctx, upn);
 562                         if (!salt) {
 563                                 return false;
 564                         }
 565                 }
 566         }
 567
 568         return kerberos_secrets_store_des_salt(salt);
 569 }
 570
 571 /****************************************************************
 572 ****************************************************************/
 573
 574 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 575                                                   struct libnet_JoinCtx *r)
 576 {
 577         ADS_STATUS status;
 578
 579         if (!r->in.ads) {
 580                 status = libnet_join_connect_ads(mem_ctx, r);
 581                 if (!ADS_ERR_OK(status)) {
 582                         return status;
 583                 }
 584         }
 585
 586         status = libnet_join_set_machine_spn(mem_ctx, r);
 587         if (!ADS_ERR_OK(status)) {
 588                 libnet_join_set_error_string(mem_ctx, r,
 589                         "failed to set machine spn: %s",
 590                         ads_errstr(status));
 591                 return status;
 592         }
 593
 594         status = libnet_join_set_os_attributes(mem_ctx, r);
 595         if (!ADS_ERR_OK(status)) {
 596                 libnet_join_set_error_string(mem_ctx, r,
 597                         "failed to set machine os attributes: %s",
 598                         ads_errstr(status));
 599                 return status;
 600         }
 601
 602         status = libnet_join_set_machine_upn(mem_ctx, r);
 603         if (!ADS_ERR_OK(status)) {
 604                 libnet_join_set_error_string(mem_ctx, r,
 605                         "failed to set machine upn: %s",
 606                         ads_errstr(status));
 607                 return status;
 608         }
 609
 610         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 611                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 612         }
 613
 614         if (!libnet_join_create_keytab(mem_ctx, r)) {
 615                 libnet_join_set_error_string(mem_ctx, r,
 616                         "failed to create kerberos keytab");
 617                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 618         }
 619
 620         return ADS_SUCCESS;
 621 }
 622 #endif /* WITH_ADS */
 623
 624 /****************************************************************
 625  Store the machine password and domain SID
 626 ****************************************************************/
 627
 628 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 629                                                  struct libnet_JoinCtx *r)
 630 {
 631         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 632                                       r->out.domain_sid))
 633         {
 634                 DEBUG(1,("Failed to save domain sid\n"));
 635                 return false;
 636         }
 637
 638         if (!secrets_store_machine_password(r->in.machine_password,
 639                                             r->out.netbios_domain_name,
 640                                             r->in.secure_channel_type))
 641         {
 642                 DEBUG(1,("Failed to save machine password\n"));
 643                 return false;
 644         }
 645
 646         return true;
 647 }
 648
 649 /****************************************************************
 650  Connect dc's IPC$ share
 651 ****************************************************************/
 652
 653 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 654                                            const char *user,
 655                                            const char *pass,
 656                                            bool use_kerberos,
 657                                            struct cli_state **cli)
 658 {
 659         int flags = 0;
 660
 661         if (use_kerberos) {
 662                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 663         }
 664
 665         if (use_kerberos && pass) {
 666                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 667         }
 668
 669         return cli_full_connection(cli, NULL,
 670                                    dc,
 671                                    NULL, 0,
 672                                    "IPC$", "IPC",
 673                                    user,
 674                                    NULL,
 675                                    pass,
 676                                    flags,
 677                                    Undefined, NULL);
 678 }
 679
 680 /****************************************************************
 681  Lookup domain dc's info
 682 ****************************************************************/
 683
 684 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 685                                           struct libnet_JoinCtx *r,
 686                                           struct cli_state **cli)
 687 {
 688         struct rpc_pipe_client *pipe_hnd = NULL;
 689         POLICY_HND lsa_pol;
 690         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 691         union lsa_PolicyInformation *info = NULL;
 692
 693         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 694                                             r->in.admin_account,
 695                                             r->in.admin_password,
 696                                             r->in.use_kerberos,
 697                                             cli);
 698         if (!NT_STATUS_IS_OK(status)) {
 699                 goto done;
 700         }
 701
 702         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 703                                           &pipe_hnd);
 704         if (!NT_STATUS_IS_OK(status)) {
 705                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 706                         nt_errstr(status)));
 707                 goto done;
 708         }
 709
 710         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 711                                         SEC_RIGHTS_MAXIMUM_ALLOWED, &lsa_pol);
 712         if (!NT_STATUS_IS_OK(status)) {
 713                 goto done;
 714         }
 715
 716         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
 717                                              &lsa_pol,
 718                                              LSA_POLICY_INFO_DNS,
 719                                              &info);
 720         if (NT_STATUS_IS_OK(status)) {
 721                 r->out.domain_is_ad = true;
 722                 r->out.netbios_domain_name = info->dns.name.string;
 723                 r->out.dns_domain_name = info->dns.dns_domain.string;
 724                 r->out.forest_name = info->dns.dns_forest.string;
 725                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->dns.sid);
 726                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 727         }
 728
 729         if (!NT_STATUS_IS_OK(status)) {
 730                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
 731                                                     &lsa_pol,
 732                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 733                                                     &info);
 734                 if (!NT_STATUS_IS_OK(status)) {
 735                         goto done;
 736                 }
 737
 738                 r->out.netbios_domain_name = info->account_domain.name.string;
 739                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->account_domain.sid);
 740                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 741         }
 742
 743         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
 744         TALLOC_FREE(pipe_hnd);
 745
 746  done:
 747         return status;
 748 }
 749
 750 /****************************************************************
 751  Do the domain join
 752 ****************************************************************/
 753
 754 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 755                                            struct libnet_JoinCtx *r,
 756                                            struct cli_state *cli)
 757 {
 758         struct rpc_pipe_client *pipe_hnd = NULL;
 759         POLICY_HND sam_pol, domain_pol, user_pol;
 760         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 761         char *acct_name;
 762         struct lsa_String lsa_acct_name;
 763         uint32_t user_rid;
 764         uint32_t acct_flags = ACB_WSTRUST;
 765         uchar md4_trust_password[16];
 766         struct samr_Ids user_rids;
 767         struct samr_Ids name_types;
 768         union samr_UserInfo user_info;
 769
 770         struct samr_CryptPassword crypt_pwd;
 771         struct samr_CryptPasswordEx crypt_pwd_ex;
 772
 773         ZERO_STRUCT(sam_pol);
 774         ZERO_STRUCT(domain_pol);
 775         ZERO_STRUCT(user_pol);
 776
 777         if (!r->in.machine_password) {
 778                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 779                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 780         }
 781
 782         /* Open the domain */
 783
 784         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 785                                           &pipe_hnd);
 786         if (!NT_STATUS_IS_OK(status)) {
 787                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 788                         nt_errstr(status)));
 789                 goto done;
 790         }
 791
 792         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
 793                                       pipe_hnd->desthost,
 794                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 795                                       &sam_pol);
 796         if (!NT_STATUS_IS_OK(status)) {
 797                 goto done;
 798         }
 799
 800         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
 801                                         &sam_pol,
 802                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
 803                                         r->out.domain_sid,
 804                                         &domain_pol);
 805         if (!NT_STATUS_IS_OK(status)) {
 806                 goto done;
 807         }
 808
 809         /* Create domain user */
 810
 811         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 812         strlower_m(acct_name);
 813
 814         init_lsa_String(&lsa_acct_name, acct_name);
 815
 816         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 817                 uint32_t access_desired =
 818                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 819                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 820                         SAMR_USER_ACCESS_SET_PASSWORD |
 821                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 822                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 823                 uint32_t access_granted = 0;
 824
 825                 /* Don't try to set any acct_flags flags other than ACB_WSTRUST */
 826
 827                 DEBUG(10,("Creating account with desired access mask: %d\n",
 828                         access_desired));
 829
 830                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
 831                                                  &domain_pol,
 832                                                  &lsa_acct_name,
 833                                                  ACB_WSTRUST,
 834                                                  access_desired,
 835                                                  &user_pol,
 836                                                  &access_granted,
 837                                                  &user_rid);
 838                 if (!NT_STATUS_IS_OK(status) &&
 839                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 840
 841                         DEBUG(10,("Creation of workstation account failed: %s\n",
 842                                 nt_errstr(status)));
 843
 844                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 845                            username/password combo but the user does not have
 846                            administrator access. */
 847
 848                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 849                                 libnet_join_set_error_string(mem_ctx, r,
 850                                         "User specified does not have "
 851                                         "administrator privileges");
 852                         }
 853
 854                         goto done;
 855                 }
 856
 857                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 858                         if (!(r->in.join_flags &
 859                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 860                                 goto done;
 861                         }
 862                 }
 863
 864                 /* We *must* do this.... don't ask... */
 865
 866                 if (NT_STATUS_IS_OK(status)) {
 867                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 868                 }
 869         }
 870
 871         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
 872                                          &domain_pol,
 873                                          1,
 874                                          &lsa_acct_name,
 875                                          &user_rids,
 876                                          &name_types);
 877         if (!NT_STATUS_IS_OK(status)) {
 878                 goto done;
 879         }
 880
 881         if (name_types.ids[0] != SID_NAME_USER) {
 882                 DEBUG(0,("%s is not a user account (type=%d)\n",
 883                         acct_name, name_types.ids[0]));
 884                 status = NT_STATUS_INVALID_WORKSTATION;
 885                 goto done;
 886         }
 887
 888         user_rid = user_rids.ids[0];
 889
 890         /* Open handle on user */
 891
 892         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
 893                                       &domain_pol,
 894                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 895                                       user_rid,
 896                                       &user_pol);
 897         if (!NT_STATUS_IS_OK(status)) {
 898                 goto done;
 899         }
 900
 901         /* Create a random machine account password and generate the hash */
 902
 903         E_md4hash(r->in.machine_password, md4_trust_password);
 904
 905         init_samr_CryptPasswordEx(r->in.machine_password,
 906                                   &cli->user_session_key,
 907                                   &crypt_pwd_ex);
 908
 909         /* Fill in the additional account flags now */
 910
 911         acct_flags |= ACB_PWNOEXP;
 912         if (r->out.domain_is_ad) {
 913 #if !defined(ENCTYPE_ARCFOUR_HMAC)
 914                 acct_flags |= ACB_USE_DES_KEY_ONLY;
 915 #endif
 916                 ;;
 917         }
 918
 919         /* Set password and account flags on machine account */
 920
 921         ZERO_STRUCT(user_info.info25);
 922
 923         user_info.info25.info.fields_present = ACCT_NT_PWD_SET |
 924                                                ACCT_LM_PWD_SET |
 925                                                SAMR_FIELD_ACCT_FLAGS;
 926
 927         user_info.info25.info.acct_flags = acct_flags;
 928         memcpy(&user_info.info25.password.data, crypt_pwd_ex.data,
 929                sizeof(crypt_pwd_ex.data));
 930
 931         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
 932                                          &user_pol,
 933                                          25,
 934                                          &user_info);
 935
 936         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
 937
 938                 /* retry with level 24 */
 939
 940                 init_samr_CryptPassword(r->in.machine_password,
 941                                         &cli->user_session_key,
 942                                         &crypt_pwd);
 943
 944                 init_samr_user_info24(&user_info.info24, &crypt_pwd,
 945                                       PASS_DONT_CHANGE_AT_NEXT_LOGON);
 946
 947                 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
 948                                                   &user_pol,
 949                                                   24,
 950                                                   &user_info);
 951         }
 952
 953         if (!NT_STATUS_IS_OK(status)) {
 954
 955                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
 956                                        &user_pol);
 957
 958                 libnet_join_set_error_string(mem_ctx, r,
 959                         "Failed to set password for machine account (%s)\n",
 960                         nt_errstr(status));
 961                 goto done;
 962         }
 963
 964         status = NT_STATUS_OK;
 965
 966  done:
 967         if (!pipe_hnd) {
 968                 return status;
 969         }
 970
 971         if (is_valid_policy_hnd(&sam_pol)) {
 972                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
 973         }
 974         if (is_valid_policy_hnd(&domain_pol)) {
 975                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
 976         }
 977         if (is_valid_policy_hnd(&user_pol)) {
 978                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 979         }
 980         TALLOC_FREE(pipe_hnd);
 981
 982         return status;
 983 }
 984
 985 /****************************************************************
 986 ****************************************************************/
 987
 988 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
 989                         const char *machine_name,
 990                         const char *dc_name)
 991 {
 992         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
 993         struct cli_state *cli = NULL;
 994         struct rpc_pipe_client *pipe_hnd = NULL;
 995         struct rpc_pipe_client *netlogon_pipe = NULL;
 996         NTSTATUS status;
 997         char *machine_password = NULL;
 998         char *machine_account = NULL;
 999
1000         if (!dc_name) {
1001                 return NT_STATUS_INVALID_PARAMETER;
1002         }
1003
1004         if (!secrets_init()) {
1005                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1006         }
1007
1008         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1009                                                           NULL, NULL);
1010         if (!machine_password) {
1011                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1012         }
1013
1014         asprintf(&machine_account, "%s$", machine_name);
1015         if (!machine_account) {
1016                 SAFE_FREE(machine_password);
1017                 return NT_STATUS_NO_MEMORY;
1018         }
1019
1020         status = cli_full_connection(&cli, NULL,
1021                                      dc_name,
1022                                      NULL, 0,
1023                                      "IPC$", "IPC",
1024                                      machine_account,
1025                                      NULL,
1026                                      machine_password,
1027                                      0,
1028                                      Undefined, NULL);
1029         free(machine_account);
1030         free(machine_password);
1031
1032         if (!NT_STATUS_IS_OK(status)) {
1033                 status = cli_full_connection(&cli, NULL,
1034                                              dc_name,
1035                                              NULL, 0,
1036                                              "IPC$", "IPC",
1037                                              "",
1038                                              NULL,
1039                                              "",
1040                                              0,
1041                                              Undefined, NULL);
1042         }
1043
1044         if (!NT_STATUS_IS_OK(status)) {
1045                 return status;
1046         }
1047
1048         status = get_schannel_session_key(cli, netbios_domain_name,
1049                                           &neg_flags, &netlogon_pipe);
1050         if (!NT_STATUS_IS_OK(status)) {
1051                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1052                         cli_shutdown(cli);
1053                         return NT_STATUS_OK;
1054                 }
1055
1056                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1057                         "key from server %s for domain %s. Error was %s\n",
1058                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1059                 cli_shutdown(cli);
1060                 return status;
1061         }
1062
1063         if (!lp_client_schannel()) {
1064                 cli_shutdown(cli);
1065                 return NT_STATUS_OK;
1066         }
1067
1068         status = cli_rpc_pipe_open_schannel_with_key(
1069                 cli, &ndr_table_netlogon.syntax_id, PIPE_AUTH_LEVEL_PRIVACY,
1070                 netbios_domain_name, netlogon_pipe->dc, &pipe_hnd);
1071
1072         cli_shutdown(cli);
1073
1074         if (!NT_STATUS_IS_OK(status)) {
1075                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1076                         "on netlogon pipe to server %s for domain %s. "
1077                         "Error was %s\n",
1078                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1079                 return status;
1080         }
1081
1082         return NT_STATUS_OK;
1083 }
1084
1085 /****************************************************************
1086 ****************************************************************/
1087
1088 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1089                                       struct libnet_JoinCtx *r)
1090 {
1091         NTSTATUS status;
1092
1093         status = libnet_join_ok(r->out.netbios_domain_name,
1094                                 r->in.machine_name,
1095                                 r->in.dc_name);
1096         if (!NT_STATUS_IS_OK(status)) {
1097                 libnet_join_set_error_string(mem_ctx, r,
1098                         "failed to verify domain membership after joining: %s",
1099                         get_friendly_nt_error_msg(status));
1100                 return WERR_SETUP_NOT_JOINED;
1101         }
1102
1103         return WERR_OK;
1104 }
1105
1106 /****************************************************************
1107 ****************************************************************/
1108
1109 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1110                                                     struct libnet_UnjoinCtx *r)
1111 {
1112         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1113                 return false;
1114         }
1115
1116         if (!secrets_delete_domain_sid(lp_workgroup())) {
1117                 return false;
1118         }
1119
1120         return true;
1121 }
1122
1123 /****************************************************************
1124 ****************************************************************/
1125
1126 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1127                                              struct libnet_UnjoinCtx *r)
1128 {
1129         struct cli_state *cli = NULL;
1130         struct rpc_pipe_client *pipe_hnd = NULL;
1131         POLICY_HND sam_pol, domain_pol, user_pol;
1132         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1133         char *acct_name;
1134         uint32_t user_rid;
1135         struct lsa_String lsa_acct_name;
1136         struct samr_Ids user_rids;
1137         struct samr_Ids name_types;
1138         union samr_UserInfo *info = NULL;
1139
1140         ZERO_STRUCT(sam_pol);
1141         ZERO_STRUCT(domain_pol);
1142         ZERO_STRUCT(user_pol);
1143
1144         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1145                                             r->in.admin_account,
1146                                             r->in.admin_password,
1147                                             r->in.use_kerberos,
1148                                             &cli);
1149         if (!NT_STATUS_IS_OK(status)) {
1150                 goto done;
1151         }
1152
1153         /* Open the domain */
1154
1155         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1156                                           &pipe_hnd);
1157         if (!NT_STATUS_IS_OK(status)) {
1158                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1159                         nt_errstr(status)));
1160                 goto done;
1161         }
1162
1163         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1164                                       pipe_hnd->desthost,
1165                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1166                                       &sam_pol);
1167         if (!NT_STATUS_IS_OK(status)) {
1168                 goto done;
1169         }
1170
1171         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1172                                         &sam_pol,
1173                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
1174                                         r->in.domain_sid,
1175                                         &domain_pol);
1176         if (!NT_STATUS_IS_OK(status)) {
1177                 goto done;
1178         }
1179
1180         /* Create domain user */
1181
1182         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1183         strlower_m(acct_name);
1184
1185         init_lsa_String(&lsa_acct_name, acct_name);
1186
1187         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1188                                          &domain_pol,
1189                                          1,
1190                                          &lsa_acct_name,
1191                                          &user_rids,
1192                                          &name_types);
1193
1194         if (!NT_STATUS_IS_OK(status)) {
1195                 goto done;
1196         }
1197
1198         if (name_types.ids[0] != SID_NAME_USER) {
1199                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1200                         name_types.ids[0]));
1201                 status = NT_STATUS_INVALID_WORKSTATION;
1202                 goto done;
1203         }
1204
1205         user_rid = user_rids.ids[0];
1206
1207         /* Open handle on user */
1208
1209         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1210                                       &domain_pol,
1211                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1212                                       user_rid,
1213                                       &user_pol);
1214         if (!NT_STATUS_IS_OK(status)) {
1215                 goto done;
1216         }
1217
1218         /* Get user info */
1219
1220         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1221                                            &user_pol,
1222                                            16,
1223                                            &info);
1224         if (!NT_STATUS_IS_OK(status)) {
1225                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1226                 goto done;
1227         }
1228
1229         /* now disable and setuser info */
1230
1231         info->info16.acct_flags |= ACB_DISABLED;
1232
1233         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1234                                          &user_pol,
1235                                          16,
1236                                          info);
1237
1238         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1239
1240 done:
1241         if (pipe_hnd) {
1242                 if (is_valid_policy_hnd(&domain_pol)) {
1243                         rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1244                 }
1245                 if (is_valid_policy_hnd(&sam_pol)) {
1246                         rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1247                 }
1248                 TALLOC_FREE(pipe_hnd);
1249         }
1250
1251         if (cli) {
1252                 cli_shutdown(cli);
1253         }
1254
1255         return status;
1256 }
1257
1258 /****************************************************************
1259 ****************************************************************/
1260
1261 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1262 {
1263         WERROR werr;
1264         struct smbconf_ctx *ctx;
1265
1266         werr = smbconf_init_reg(r, &ctx, NULL);
1267         if (!W_ERROR_IS_OK(werr)) {
1268                 goto done;
1269         }
1270
1271         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1272
1273                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1274                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1275
1276                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1277                                                     r->in.domain_name);
1278
1279                 smbconf_delete_global_parameter(ctx, "realm");
1280                 goto done;
1281         }
1282
1283         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1284         W_ERROR_NOT_OK_GOTO_DONE(werr);
1285
1286         werr = smbconf_set_global_parameter(ctx, "workgroup",
1287                                             r->out.netbios_domain_name);
1288         W_ERROR_NOT_OK_GOTO_DONE(werr);
1289
1290         if (r->out.domain_is_ad) {
1291                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1292                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1293
1294                 werr = smbconf_set_global_parameter(ctx, "realm",
1295                                                     r->out.dns_domain_name);
1296                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1297         }
1298
1299  done:
1300         smbconf_shutdown(ctx);
1301         return werr;
1302 }
1303
1304 /****************************************************************
1305 ****************************************************************/
1306
1307 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1308 {
1309         WERROR werr = WERR_OK;
1310         struct smbconf_ctx *ctx;
1311
1312         werr = smbconf_init_reg(r, &ctx, NULL);
1313         if (!W_ERROR_IS_OK(werr)) {
1314                 goto done;
1315         }
1316
1317         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1318
1319                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1320                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1321
1322                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1323                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1324
1325                 smbconf_delete_global_parameter(ctx, "realm");
1326         }
1327
1328  done:
1329         smbconf_shutdown(ctx);
1330         return werr;
1331 }
1332
1333 /****************************************************************
1334 ****************************************************************/
1335
1336 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1337 {
1338         WERROR werr;
1339
1340         if (!W_ERROR_IS_OK(r->out.result)) {
1341                 return r->out.result;
1342         }
1343
1344         if (!r->in.modify_config) {
1345                 return WERR_OK;
1346         }
1347
1348         werr = do_join_modify_vals_config(r);
1349         if (!W_ERROR_IS_OK(werr)) {
1350                 return werr;
1351         }
1352
1353         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1354
1355         r->out.modified_config = true;
1356         r->out.result = werr;
1357
1358         return werr;
1359 }
1360
1361 /****************************************************************
1362 ****************************************************************/
1363
1364 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1365 {
1366         WERROR werr;
1367
1368         if (!W_ERROR_IS_OK(r->out.result)) {
1369                 return r->out.result;
1370         }
1371
1372         if (!r->in.modify_config) {
1373                 return WERR_OK;
1374         }
1375
1376         werr = do_unjoin_modify_vals_config(r);
1377         if (!W_ERROR_IS_OK(werr)) {
1378                 return werr;
1379         }
1380
1381         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1382
1383         r->out.modified_config = true;
1384         r->out.result = werr;
1385
1386         return werr;
1387 }
1388
1389 /****************************************************************
1390 ****************************************************************/
1391
1392 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1393                                    const char *domain_str,
1394                                    const char **domain_p,
1395                                    const char **dc_p)
1396 {
1397         char *domain = NULL;
1398         char *dc = NULL;
1399         const char *p = NULL;
1400
1401         if (!domain_str || !domain_p || !dc_p) {
1402                 return false;
1403         }
1404
1405         p = strchr_m(domain_str, '\\');
1406
1407         if (p != NULL) {
1408                 domain = talloc_strndup(mem_ctx, domain_str,
1409                                          PTR_DIFF(p, domain_str));
1410                 dc = talloc_strdup(mem_ctx, p+1);
1411                 if (!dc) {
1412                         return false;
1413                 }
1414         } else {
1415                 domain = talloc_strdup(mem_ctx, domain_str);
1416                 dc = NULL;
1417         }
1418         if (!domain) {
1419                 return false;
1420         }
1421
1422         *domain_p = domain;
1423
1424         if (!*dc_p && dc) {
1425                 *dc_p = dc;
1426         }
1427
1428         return true;
1429 }
1430
1431 /****************************************************************
1432 ****************************************************************/
1433
1434 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1435                                          struct libnet_JoinCtx *r)
1436 {
1437         if (!r->in.domain_name) {
1438                 libnet_join_set_error_string(mem_ctx, r,
1439                         "No domain name defined");
1440                 return WERR_INVALID_PARAM;
1441         }
1442
1443         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1444                                     &r->in.domain_name,
1445                                     &r->in.dc_name)) {
1446                 libnet_join_set_error_string(mem_ctx, r,
1447                         "Failed to parse domain name");
1448                 return WERR_INVALID_PARAM;
1449         }
1450
1451         if (IS_DC) {
1452                 return WERR_SETUP_DOMAIN_CONTROLLER;
1453         }
1454
1455         if (!secrets_init()) {
1456                 libnet_join_set_error_string(mem_ctx, r,
1457                         "Unable to open secrets database");
1458                 return WERR_CAN_NOT_COMPLETE;
1459         }
1460
1461         return WERR_OK;
1462 }
1463
1464 /****************************************************************
1465 ****************************************************************/
1466
1467 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1468 {
1469         NTSTATUS status;
1470
1471         /* Try adding dom admins to builtin\admins. Only log failures. */
1472         status = create_builtin_administrators(domain_sid);
1473         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1474                 DEBUG(10,("Unable to auto-add domain administrators to "
1475                           "BUILTIN\\Administrators during join because "
1476                           "winbindd must be running."));
1477         } else if (!NT_STATUS_IS_OK(status)) {
1478                 DEBUG(5, ("Failed to auto-add domain administrators to "
1479                           "BUILTIN\\Administrators during join: %s\n",
1480                           nt_errstr(status)));
1481         }
1482
1483         /* Try adding dom users to builtin\users. Only log failures. */
1484         status = create_builtin_users(domain_sid);
1485         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1486                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1487                           "during join because winbindd must be running."));
1488         } else if (!NT_STATUS_IS_OK(status)) {
1489                 DEBUG(5, ("Failed to auto-add domain administrators to "
1490                           "BUILTIN\\Administrators during join: %s\n",
1491                           nt_errstr(status)));
1492         }
1493 }
1494
1495 /****************************************************************
1496 ****************************************************************/
1497
1498 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1499                                           struct libnet_JoinCtx *r)
1500 {
1501         WERROR werr;
1502
1503         if (!W_ERROR_IS_OK(r->out.result)) {
1504                 return r->out.result;
1505         }
1506
1507         werr = do_JoinConfig(r);
1508         if (!W_ERROR_IS_OK(werr)) {
1509                 return werr;
1510         }
1511
1512         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1513                 return WERR_OK;
1514         }
1515
1516         saf_store(r->in.domain_name, r->in.dc_name);
1517
1518 #ifdef WITH_ADS
1519         if (r->out.domain_is_ad) {
1520                 ADS_STATUS ads_status;
1521
1522                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1523                 if (!ADS_ERR_OK(ads_status)) {
1524                         return WERR_GENERAL_FAILURE;
1525                 }
1526         }
1527 #endif /* WITH_ADS */
1528
1529         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1530
1531         return WERR_OK;
1532 }
1533
1534 /****************************************************************
1535 ****************************************************************/
1536
1537 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1538 {
1539         const char *krb5_cc_env = NULL;
1540
1541         if (r->in.ads) {
1542                 ads_destroy(&r->in.ads);
1543         }
1544
1545         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1546         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1547                 unsetenv(KRB5_ENV_CCNAME);
1548         }
1549
1550         return 0;
1551 }
1552
1553 /****************************************************************
1554 ****************************************************************/
1555
1556 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1557 {
1558         const char *krb5_cc_env = NULL;
1559
1560         if (r->in.ads) {
1561                 ads_destroy(&r->in.ads);
1562         }
1563
1564         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1565         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1566                 unsetenv(KRB5_ENV_CCNAME);
1567         }
1568
1569         return 0;
1570 }
1571
1572 /****************************************************************
1573 ****************************************************************/
1574
1575 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1576                            struct libnet_JoinCtx **r)
1577 {
1578         struct libnet_JoinCtx *ctx;
1579         const char *krb5_cc_env = NULL;
1580
1581         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1582         if (!ctx) {
1583                 return WERR_NOMEM;
1584         }
1585
1586         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1587
1588         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1589         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1590
1591         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1592         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1593                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1594                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1595                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1596         }
1597
1598         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1599
1600         *r = ctx;
1601
1602         return WERR_OK;
1603 }
1604
1605 /****************************************************************
1606 ****************************************************************/
1607
1608 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1609                              struct libnet_UnjoinCtx **r)
1610 {
1611         struct libnet_UnjoinCtx *ctx;
1612         const char *krb5_cc_env = NULL;
1613
1614         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1615         if (!ctx) {
1616                 return WERR_NOMEM;
1617         }
1618
1619         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1620
1621         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1622         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1623
1624         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1625         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1626                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1627                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1628                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1629         }
1630
1631         *r = ctx;
1632
1633         return WERR_OK;
1634 }
1635
1636 /****************************************************************
1637 ****************************************************************/
1638
1639 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1640                                        struct libnet_JoinCtx *r)
1641 {
1642         bool valid_security = false;
1643         bool valid_workgroup = false;
1644         bool valid_realm = false;
1645
1646         /* check if configuration is already set correctly */
1647
1648         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1649
1650         switch (r->out.domain_is_ad) {
1651                 case false:
1652                         valid_security = (lp_security() == SEC_DOMAIN);
1653                         if (valid_workgroup && valid_security) {
1654                                 /* nothing to be done */
1655                                 return WERR_OK;
1656                         }
1657                         break;
1658                 case true:
1659                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1660                         switch (lp_security()) {
1661                         case SEC_DOMAIN:
1662                         case SEC_ADS:
1663                                 valid_security = true;
1664                         }
1665
1666                         if (valid_workgroup && valid_realm && valid_security) {
1667                                 /* nothing to be done */
1668                                 return WERR_OK;
1669                         }
1670                         break;
1671         }
1672
1673         /* check if we are supposed to manipulate configuration */
1674
1675         if (!r->in.modify_config) {
1676
1677                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1678
1679                 if (!valid_workgroup) {
1680                         wrong_conf = talloc_asprintf_append(wrong_conf,
1681                                 "\"workgroup\" set to '%s', should be '%s'",
1682                                 lp_workgroup(), r->out.netbios_domain_name);
1683                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1684                 }
1685
1686                 if (!valid_realm) {
1687                         wrong_conf = talloc_asprintf_append(wrong_conf,
1688                                 "\"realm\" set to '%s', should be '%s'",
1689                                 lp_realm(), r->out.dns_domain_name);
1690                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1691                 }
1692
1693                 if (!valid_security) {
1694                         const char *sec = NULL;
1695                         switch (lp_security()) {
1696                         case SEC_SHARE: sec = "share"; break;
1697                         case SEC_USER:  sec = "user"; break;
1698                         case SEC_DOMAIN: sec = "domain"; break;
1699                         case SEC_ADS: sec = "ads"; break;
1700                         }
1701                         wrong_conf = talloc_asprintf_append(wrong_conf,
1702                                 "\"security\" set to '%s', should be %s",
1703                                 sec, r->out.domain_is_ad ?
1704                                 "either 'domain' or 'ads'" : "'domain'");
1705                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1706                 }
1707
1708                 libnet_join_set_error_string(mem_ctx, r,
1709                         "Invalid configuration (%s) and configuration modification "
1710                         "was not requested", wrong_conf);
1711                 return WERR_CAN_NOT_COMPLETE;
1712         }
1713
1714         /* check if we are able to manipulate configuration */
1715
1716         if (!lp_config_backend_is_registry()) {
1717                 libnet_join_set_error_string(mem_ctx, r,
1718                         "Configuration manipulation requested but not "
1719                         "supported by backend");
1720                 return WERR_NOT_SUPPORTED;
1721         }
1722
1723         return WERR_OK;
1724 }
1725
1726 /****************************************************************
1727 ****************************************************************/
1728
1729 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1730                                 struct libnet_JoinCtx *r)
1731 {
1732         NTSTATUS status;
1733         WERROR werr;
1734         struct cli_state *cli = NULL;
1735 #ifdef WITH_ADS
1736         ADS_STATUS ads_status;
1737 #endif /* WITH_ADS */
1738
1739         if (!r->in.dc_name) {
1740                 struct netr_DsRGetDCNameInfo *info;
1741                 const char *dc;
1742                 status = dsgetdcname(mem_ctx,
1743                                      r->in.msg_ctx,
1744                                      r->in.domain_name,
1745                                      NULL,
1746                                      NULL,
1747                                      DS_DIRECTORY_SERVICE_REQUIRED |
1748                                      DS_WRITABLE_REQUIRED |
1749                                      DS_RETURN_DNS_NAME,
1750                                      &info);
1751                 if (!NT_STATUS_IS_OK(status)) {
1752                         libnet_join_set_error_string(mem_ctx, r,
1753                                 "failed to find DC for domain %s",
1754                                 r->in.domain_name,
1755                                 get_friendly_nt_error_msg(status));
1756                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1757                 }
1758
1759                 dc = strip_hostname(info->dc_unc);
1760                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1761                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1762         }
1763
1764         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1765         if (!NT_STATUS_IS_OK(status)) {
1766                 libnet_join_set_error_string(mem_ctx, r,
1767                         "failed to lookup DC info for domain '%s' over rpc: %s",
1768                         r->in.domain_name, get_friendly_nt_error_msg(status));
1769                 return ntstatus_to_werror(status);
1770         }
1771
1772         werr = libnet_join_check_config(mem_ctx, r);
1773         if (!W_ERROR_IS_OK(werr)) {
1774                 goto done;
1775         }
1776
1777 #ifdef WITH_ADS
1778         if (r->out.domain_is_ad && r->in.account_ou) {
1779
1780                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1781                 if (!ADS_ERR_OK(ads_status)) {
1782                         return WERR_DEFAULT_JOIN_REQUIRED;
1783                 }
1784
1785                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1786                 if (!ADS_ERR_OK(ads_status)) {
1787                         libnet_join_set_error_string(mem_ctx, r,
1788                                 "failed to precreate account in ou %s: %s",
1789                                 r->in.account_ou,
1790                                 ads_errstr(ads_status));
1791                         return WERR_DEFAULT_JOIN_REQUIRED;
1792                 }
1793
1794                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1795         }
1796 #endif /* WITH_ADS */
1797
1798         status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
1799         if (!NT_STATUS_IS_OK(status)) {
1800                 libnet_join_set_error_string(mem_ctx, r,
1801                         "failed to join domain '%s' over rpc: %s",
1802                         r->in.domain_name, get_friendly_nt_error_msg(status));
1803                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1804                         return WERR_SETUP_ALREADY_JOINED;
1805                 }
1806                 werr = ntstatus_to_werror(status);
1807                 goto done;
1808         }
1809
1810         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1811                 werr = WERR_SETUP_NOT_JOINED;
1812                 goto done;
1813         }
1814
1815         werr = WERR_OK;
1816
1817  done:
1818         if (cli) {
1819                 cli_shutdown(cli);
1820         }
1821
1822         return werr;
1823 }
1824
1825 /****************************************************************
1826 ****************************************************************/
1827
1828 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
1829                                    struct libnet_JoinCtx *r)
1830 {
1831         WERROR werr;
1832         struct libnet_UnjoinCtx *u = NULL;
1833
1834         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
1835         if (!W_ERROR_IS_OK(werr)) {
1836                 return werr;
1837         }
1838
1839         u->in.debug             = r->in.debug;
1840         u->in.dc_name           = r->in.dc_name;
1841         u->in.domain_name       = r->in.domain_name;
1842         u->in.admin_account     = r->in.admin_account;
1843         u->in.admin_password    = r->in.admin_password;
1844         u->in.modify_config     = r->in.modify_config;
1845         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
1846                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
1847
1848         werr = libnet_Unjoin(mem_ctx, u);
1849         TALLOC_FREE(u);
1850
1851         return werr;
1852 }
1853
1854 /****************************************************************
1855 ****************************************************************/
1856
1857 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1858                    struct libnet_JoinCtx *r)
1859 {
1860         WERROR werr;
1861
1862         if (r->in.debug) {
1863                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1864         }
1865
1866         werr = libnet_join_pre_processing(mem_ctx, r);
1867         if (!W_ERROR_IS_OK(werr)) {
1868                 goto done;
1869         }
1870
1871         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1872                 werr = libnet_DomainJoin(mem_ctx, r);
1873                 if (!W_ERROR_IS_OK(werr)) {
1874                         goto done;
1875                 }
1876         }
1877
1878         werr = libnet_join_post_processing(mem_ctx, r);
1879         if (!W_ERROR_IS_OK(werr)) {
1880                 goto done;
1881         }
1882
1883         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1884                 werr = libnet_join_post_verify(mem_ctx, r);
1885                 if (!W_ERROR_IS_OK(werr)) {
1886                         libnet_join_rollback(mem_ctx, r);
1887                 }
1888         }
1889
1890  done:
1891         r->out.result = werr;
1892
1893         if (r->in.debug) {
1894                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1895         }
1896         return werr;
1897 }
1898
1899 /****************************************************************
1900 ****************************************************************/
1901
1902 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1903                                   struct libnet_UnjoinCtx *r)
1904 {
1905         NTSTATUS status;
1906
1907         if (!r->in.domain_sid) {
1908                 struct dom_sid sid;
1909                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1910                         libnet_unjoin_set_error_string(mem_ctx, r,
1911                                 "Unable to fetch domain sid: are we joined?");
1912                         return WERR_SETUP_NOT_JOINED;
1913                 }
1914                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1915                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1916         }
1917
1918         if (!r->in.dc_name) {
1919                 struct netr_DsRGetDCNameInfo *info;
1920                 const char *dc;
1921                 status = dsgetdcname(mem_ctx,
1922                                      r->in.msg_ctx,
1923                                      r->in.domain_name,
1924                                      NULL,
1925                                      NULL,
1926                                      DS_DIRECTORY_SERVICE_REQUIRED |
1927                                      DS_WRITABLE_REQUIRED |
1928                                      DS_RETURN_DNS_NAME,
1929                                      &info);
1930                 if (!NT_STATUS_IS_OK(status)) {
1931                         libnet_unjoin_set_error_string(mem_ctx, r,
1932                                 "failed to find DC for domain %s",
1933                                 r->in.domain_name,
1934                                 get_friendly_nt_error_msg(status));
1935                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1936                 }
1937
1938                 dc = strip_hostname(info->dc_unc);
1939                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1940                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1941         }
1942
1943         status = libnet_join_unjoindomain_rpc(mem_ctx, r);
1944         if (!NT_STATUS_IS_OK(status)) {
1945                 libnet_unjoin_set_error_string(mem_ctx, r,
1946                         "failed to disable machine account via rpc: %s",
1947                         get_friendly_nt_error_msg(status));
1948                 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1949                         return WERR_SETUP_NOT_JOINED;
1950                 }
1951                 return ntstatus_to_werror(status);
1952         }
1953
1954         r->out.disabled_machine_account = true;
1955
1956 #ifdef WITH_ADS
1957         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
1958                 ADS_STATUS ads_status;
1959                 libnet_unjoin_connect_ads(mem_ctx, r);
1960                 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
1961                 if (!ADS_ERR_OK(ads_status)) {
1962                         libnet_unjoin_set_error_string(mem_ctx, r,
1963                                 "failed to remove machine account from AD: %s",
1964                                 ads_errstr(ads_status));
1965                 } else {
1966                         r->out.deleted_machine_account = true;
1967                         /* dirty hack */
1968                         r->out.dns_domain_name = talloc_strdup(mem_ctx,
1969                                                                r->in.ads->server.realm);
1970                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
1971                 }
1972         }
1973 #endif /* WITH_ADS */
1974
1975         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
1976
1977         return WERR_OK;
1978 }
1979
1980 /****************************************************************
1981 ****************************************************************/
1982
1983 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
1984                                            struct libnet_UnjoinCtx *r)
1985 {
1986         if (!r->in.domain_name) {
1987                 libnet_unjoin_set_error_string(mem_ctx, r,
1988                         "No domain name defined");
1989                 return WERR_INVALID_PARAM;
1990         }
1991
1992         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1993                                     &r->in.domain_name,
1994                                     &r->in.dc_name)) {
1995                 libnet_unjoin_set_error_string(mem_ctx, r,
1996                         "Failed to parse domain name");
1997                 return WERR_INVALID_PARAM;
1998         }
1999
2000         if (IS_DC) {
2001                 return WERR_SETUP_DOMAIN_CONTROLLER;
2002         }
2003
2004         if (!secrets_init()) {
2005                 libnet_unjoin_set_error_string(mem_ctx, r,
2006                         "Unable to open secrets database");
2007                 return WERR_CAN_NOT_COMPLETE;
2008         }
2009
2010         return WERR_OK;
2011 }
2012
2013 /****************************************************************
2014 ****************************************************************/
2015
2016 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2017                                             struct libnet_UnjoinCtx *r)
2018 {
2019         saf_delete(r->out.netbios_domain_name);
2020         saf_delete(r->out.dns_domain_name);
2021
2022         return libnet_unjoin_config(r);
2023 }
2024
2025 /****************************************************************
2026 ****************************************************************/
2027
2028 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2029                      struct libnet_UnjoinCtx *r)
2030 {
2031         WERROR werr;
2032
2033         if (r->in.debug) {
2034                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2035         }
2036
2037         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2038         if (!W_ERROR_IS_OK(werr)) {
2039                 goto done;
2040         }
2041
2042         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2043                 werr = libnet_DomainUnjoin(mem_ctx, r);
2044                 if (!W_ERROR_IS_OK(werr)) {
2045                         libnet_unjoin_config(r);
2046                         goto done;
2047                 }
2048         }
2049
2050         werr = libnet_unjoin_post_processing(mem_ctx, r);
2051         if (!W_ERROR_IS_OK(werr)) {
2052                 goto done;
2053         }
2054
2055  done:
2056         r->out.result = werr;
2057
2058         if (r->in.debug) {
2059                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2060         }
2061
2062         return werr;
2063 }