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 #include "libcli/auth/libcli_auth.h"
  24
  25 /****************************************************************
  26 ****************************************************************/
  27
  28 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  29         do { \
  30                 char *str = NULL; \
  31                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  32                 DEBUG(1,("libnet_Join:\n%s", str)); \
  33                 TALLOC_FREE(str); \
  34         } while (0)
  35
  36 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  37         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  38 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  39         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  40
  41 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  42         do { \
  43                 char *str = NULL; \
  44                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  45                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  46                 TALLOC_FREE(str); \
  47         } while (0)
  48
  49 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  50         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  51 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  52         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  53
  54 /****************************************************************
  55 ****************************************************************/
  56
  57 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  58                                          struct libnet_JoinCtx *r,
  59                                          const char *format, ...)
  60 {
  61         va_list args;
  62
  63         if (r->out.error_string) {
  64                 return;
  65         }
  66
  67         va_start(args, format);
  68         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  69         va_end(args);
  70 }
  71
  72 /****************************************************************
  73 ****************************************************************/
  74
  75 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  76                                            struct libnet_UnjoinCtx *r,
  77                                            const char *format, ...)
  78 {
  79         va_list args;
  80
  81         if (r->out.error_string) {
  82                 return;
  83         }
  84
  85         va_start(args, format);
  86         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  87         va_end(args);
  88 }
  89
  90 #ifdef WITH_ADS
  91
  92 /****************************************************************
  93 ****************************************************************/
  94
  95 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
  96                                      const char *netbios_domain_name,
  97                                      const char *dc_name,
  98                                      const char *user_name,
  99                                      const char *password,
 100                                      ADS_STRUCT **ads)
 101 {
 102         ADS_STATUS status;
 103         ADS_STRUCT *my_ads = NULL;
 104
 105         my_ads = ads_init(dns_domain_name,
 106                           netbios_domain_name,
 107                           dc_name);
 108         if (!my_ads) {
 109                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 110         }
 111
 112         if (user_name) {
 113                 SAFE_FREE(my_ads->auth.user_name);
 114                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 115         }
 116
 117         if (password) {
 118                 SAFE_FREE(my_ads->auth.password);
 119                 my_ads->auth.password = SMB_STRDUP(password);
 120         }
 121
 122         status = ads_connect_user_creds(my_ads);
 123         if (!ADS_ERR_OK(status)) {
 124                 ads_destroy(&my_ads);
 125                 return status;
 126         }
 127
 128         *ads = my_ads;
 129         return ADS_SUCCESS;
 130 }
 131
 132 /****************************************************************
 133 ****************************************************************/
 134
 135 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 136                                           struct libnet_JoinCtx *r)
 137 {
 138         ADS_STATUS status;
 139
 140         status = libnet_connect_ads(r->out.dns_domain_name,
 141                                     r->out.netbios_domain_name,
 142                                     r->in.dc_name,
 143                                     r->in.admin_account,
 144                                     r->in.admin_password,
 145                                     &r->in.ads);
 146         if (!ADS_ERR_OK(status)) {
 147                 libnet_join_set_error_string(mem_ctx, r,
 148                         "failed to connect to AD: %s",
 149                         ads_errstr(status));
 150                 return status;
 151         }
 152
 153         if (!r->out.netbios_domain_name) {
 154                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 155                                                            r->in.ads->server.workgroup);
 156                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 157         }
 158
 159         if (!r->out.dns_domain_name) {
 160                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 161                                                        r->in.ads->config.realm);
 162                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 163         }
 164
 165         r->out.domain_is_ad = true;
 166
 167         return ADS_SUCCESS;
 168 }
 169
 170 /****************************************************************
 171 ****************************************************************/
 172
 173 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 174                                             struct libnet_UnjoinCtx *r)
 175 {
 176         ADS_STATUS status;
 177
 178         status = libnet_connect_ads(r->in.domain_name,
 179                                     r->in.domain_name,
 180                                     r->in.dc_name,
 181                                     r->in.admin_account,
 182                                     r->in.admin_password,
 183                                     &r->in.ads);
 184         if (!ADS_ERR_OK(status)) {
 185                 libnet_unjoin_set_error_string(mem_ctx, r,
 186                         "failed to connect to AD: %s",
 187                         ads_errstr(status));
 188         }
 189
 190         return status;
 191 }
 192
 193 /****************************************************************
 194  join a domain using ADS (LDAP mods)
 195 ****************************************************************/
 196
 197 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 198                                                      struct libnet_JoinCtx *r)
 199 {
 200         ADS_STATUS status;
 201         LDAPMessage *res = NULL;
 202         const char *attrs[] = { "dn", NULL };
 203         bool moved = false;
 204
 205         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 206         if (!ADS_ERR_OK(status)) {
 207                 return status;
 208         }
 209
 210         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 211         if (!ADS_ERR_OK(status)) {
 212                 return status;
 213         }
 214
 215         if (ads_count_replies(r->in.ads, res) != 1) {
 216                 ads_msgfree(r->in.ads, res);
 217                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 218         }
 219
 220         ads_msgfree(r->in.ads, res);
 221
 222         /* Attempt to create the machine account and bail if this fails.
 223            Assume that the admin wants exactly what they requested */
 224
 225         status = ads_create_machine_acct(r->in.ads,
 226                                          r->in.machine_name,
 227                                          r->in.account_ou);
 228
 229         if (ADS_ERR_OK(status)) {
 230                 DEBUG(1,("machine account creation created\n"));
 231                 return status;
 232         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 233                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 234                 status = ADS_SUCCESS;
 235         }
 236
 237         if (!ADS_ERR_OK(status)) {
 238                 DEBUG(1,("machine account creation failed\n"));
 239                 return status;
 240         }
 241
 242         status = ads_move_machine_acct(r->in.ads,
 243                                        r->in.machine_name,
 244                                        r->in.account_ou,
 245                                        &moved);
 246         if (!ADS_ERR_OK(status)) {
 247                 DEBUG(1,("failure to locate/move pre-existing "
 248                         "machine account\n"));
 249                 return status;
 250         }
 251
 252         DEBUG(1,("The machine account %s the specified OU.\n",
 253                 moved ? "was moved into" : "already exists in"));
 254
 255         return status;
 256 }
 257
 258 /****************************************************************
 259 ****************************************************************/
 260
 261 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 262                                                     struct libnet_UnjoinCtx *r)
 263 {
 264         ADS_STATUS status;
 265
 266         if (!r->in.ads) {
 267                 return libnet_unjoin_connect_ads(mem_ctx, r);
 268         }
 269
 270         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 271         if (!ADS_ERR_OK(status)) {
 272                 libnet_unjoin_set_error_string(mem_ctx, r,
 273                         "failed to leave realm: %s",
 274                         ads_errstr(status));
 275                 return status;
 276         }
 277
 278         return ADS_SUCCESS;
 279 }
 280
 281 /****************************************************************
 282 ****************************************************************/
 283
 284 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 285                                                 struct libnet_JoinCtx *r)
 286 {
 287         ADS_STATUS status;
 288         LDAPMessage *res = NULL;
 289         char *dn = NULL;
 290
 291         if (!r->in.machine_name) {
 292                 return ADS_ERROR(LDAP_NO_MEMORY);
 293         }
 294
 295         status = ads_find_machine_acct(r->in.ads,
 296                                        &res,
 297                                        r->in.machine_name);
 298         if (!ADS_ERR_OK(status)) {
 299                 return status;
 300         }
 301
 302         if (ads_count_replies(r->in.ads, res) != 1) {
 303                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 304                 goto done;
 305         }
 306
 307         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 308         if (!dn) {
 309                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 310                 goto done;
 311         }
 312
 313         r->out.dn = talloc_strdup(mem_ctx, dn);
 314         if (!r->out.dn) {
 315                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 316                 goto done;
 317         }
 318
 319  done:
 320         ads_msgfree(r->in.ads, res);
 321         TALLOC_FREE(dn);
 322
 323         return status;
 324 }
 325
 326 /****************************************************************
 327  Set a machines dNSHostName and servicePrincipalName attributes
 328 ****************************************************************/
 329
 330 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 331                                               struct libnet_JoinCtx *r)
 332 {
 333         ADS_STATUS status;
 334         ADS_MODLIST mods;
 335         fstring my_fqdn;
 336         const char *spn_array[3] = {NULL, NULL, NULL};
 337         char *spn = NULL;
 338
 339         /* Find our DN */
 340
 341         status = libnet_join_find_machine_acct(mem_ctx, r);
 342         if (!ADS_ERR_OK(status)) {
 343                 return status;
 344         }
 345
 346         /* Windows only creates HOST/shortname & HOST/fqdn. */
 347
 348         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 349         if (!spn) {
 350                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 351         }
 352         strupper_m(spn);
 353         spn_array[0] = spn;
 354
 355         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 356             || (strchr(my_fqdn, '.') == NULL)) {
 357                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 358                              r->out.dns_domain_name);
 359         }
 360
 361         strlower_m(my_fqdn);
 362
 363         if (!strequal(my_fqdn, r->in.machine_name)) {
 364                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 365                 if (!spn) {
 366                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 367                 }
 368                 spn_array[1] = spn;
 369         }
 370
 371         mods = ads_init_mods(mem_ctx);
 372         if (!mods) {
 373                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 374         }
 375
 376         /* fields of primary importance */
 377
 378         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 379         if (!ADS_ERR_OK(status)) {
 380                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 381         }
 382
 383         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 384                                  spn_array);
 385         if (!ADS_ERR_OK(status)) {
 386                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 387         }
 388
 389         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 390 }
 391
 392 /****************************************************************
 393 ****************************************************************/
 394
 395 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 396                                               struct libnet_JoinCtx *r)
 397 {
 398         ADS_STATUS status;
 399         ADS_MODLIST mods;
 400
 401         if (!r->in.create_upn) {
 402                 return ADS_SUCCESS;
 403         }
 404
 405         /* Find our DN */
 406
 407         status = libnet_join_find_machine_acct(mem_ctx, r);
 408         if (!ADS_ERR_OK(status)) {
 409                 return status;
 410         }
 411
 412         if (!r->in.upn) {
 413                 r->in.upn = talloc_asprintf(mem_ctx,
 414                                             "host/%s@%s",
 415                                             r->in.machine_name,
 416                                             r->out.dns_domain_name);
 417                 if (!r->in.upn) {
 418                         return ADS_ERROR(LDAP_NO_MEMORY);
 419                 }
 420         }
 421
 422         /* now do the mods */
 423
 424         mods = ads_init_mods(mem_ctx);
 425         if (!mods) {
 426                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 427         }
 428
 429         /* fields of primary importance */
 430
 431         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 432         if (!ADS_ERR_OK(status)) {
 433                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 434         }
 435
 436         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 437 }
 438
 439
 440 /****************************************************************
 441 ****************************************************************/
 442
 443 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 444                                                 struct libnet_JoinCtx *r)
 445 {
 446         ADS_STATUS status;
 447         ADS_MODLIST mods;
 448         char *os_sp = NULL;
 449
 450         if (!r->in.os_name || !r->in.os_version ) {
 451                 return ADS_SUCCESS;
 452         }
 453
 454         /* Find our DN */
 455
 456         status = libnet_join_find_machine_acct(mem_ctx, r);
 457         if (!ADS_ERR_OK(status)) {
 458                 return status;
 459         }
 460
 461         /* now do the mods */
 462
 463         mods = ads_init_mods(mem_ctx);
 464         if (!mods) {
 465                 return ADS_ERROR(LDAP_NO_MEMORY);
 466         }
 467
 468         os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
 469         if (!os_sp) {
 470                 return ADS_ERROR(LDAP_NO_MEMORY);
 471         }
 472
 473         /* fields of primary importance */
 474
 475         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 476                              r->in.os_name);
 477         if (!ADS_ERR_OK(status)) {
 478                 return status;
 479         }
 480
 481         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 482                              r->in.os_version);
 483         if (!ADS_ERR_OK(status)) {
 484                 return status;
 485         }
 486
 487         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 488                              os_sp);
 489         if (!ADS_ERR_OK(status)) {
 490                 return status;
 491         }
 492
 493         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 494 }
 495
 496 /****************************************************************
 497 ****************************************************************/
 498
 499 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 500                                       struct libnet_JoinCtx *r)
 501 {
 502         if (!USE_SYSTEM_KEYTAB) {
 503                 return true;
 504         }
 505
 506         if (ads_keytab_create_default(r->in.ads) != 0) {
 507                 return false;
 508         }
 509
 510         return true;
 511 }
 512
 513 /****************************************************************
 514 ****************************************************************/
 515
 516 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 517                                                  struct libnet_JoinCtx *r)
 518 {
 519         uint32_t domain_func;
 520         ADS_STATUS status;
 521         const char *salt = NULL;
 522         char *std_salt = NULL;
 523
 524         status = ads_domain_func_level(r->in.ads, &domain_func);
 525         if (!ADS_ERR_OK(status)) {
 526                 libnet_join_set_error_string(mem_ctx, r,
 527                         "failed to determine domain functional level: %s",
 528                         ads_errstr(status));
 529                 return false;
 530         }
 531
 532         /* go ahead and setup the default salt */
 533
 534         std_salt = kerberos_standard_des_salt();
 535         if (!std_salt) {
 536                 libnet_join_set_error_string(mem_ctx, r,
 537                         "failed to obtain standard DES salt");
 538                 return false;
 539         }
 540
 541         salt = talloc_strdup(mem_ctx, std_salt);
 542         if (!salt) {
 543                 return false;
 544         }
 545
 546         SAFE_FREE(std_salt);
 547
 548         /* if it's a Windows functional domain, we have to look for the UPN */
 549
 550         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 551                 char *upn;
 552
 553                 upn = ads_get_upn(r->in.ads, mem_ctx,
 554                                   r->in.machine_name);
 555                 if (upn) {
 556                         salt = talloc_strdup(mem_ctx, upn);
 557                         if (!salt) {
 558                                 return false;
 559                         }
 560                 }
 561         }
 562
 563         return kerberos_secrets_store_des_salt(salt);
 564 }
 565
 566 /****************************************************************
 567 ****************************************************************/
 568
 569 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 570                                                   struct libnet_JoinCtx *r)
 571 {
 572         ADS_STATUS status;
 573
 574         if (!r->in.ads) {
 575                 status = libnet_join_connect_ads(mem_ctx, r);
 576                 if (!ADS_ERR_OK(status)) {
 577                         return status;
 578                 }
 579         }
 580
 581         status = libnet_join_set_machine_spn(mem_ctx, r);
 582         if (!ADS_ERR_OK(status)) {
 583                 libnet_join_set_error_string(mem_ctx, r,
 584                         "failed to set machine spn: %s",
 585                         ads_errstr(status));
 586                 return status;
 587         }
 588
 589         status = libnet_join_set_os_attributes(mem_ctx, r);
 590         if (!ADS_ERR_OK(status)) {
 591                 libnet_join_set_error_string(mem_ctx, r,
 592                         "failed to set machine os attributes: %s",
 593                         ads_errstr(status));
 594                 return status;
 595         }
 596
 597         status = libnet_join_set_machine_upn(mem_ctx, r);
 598         if (!ADS_ERR_OK(status)) {
 599                 libnet_join_set_error_string(mem_ctx, r,
 600                         "failed to set machine upn: %s",
 601                         ads_errstr(status));
 602                 return status;
 603         }
 604
 605         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 606                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 607         }
 608
 609         if (!libnet_join_create_keytab(mem_ctx, r)) {
 610                 libnet_join_set_error_string(mem_ctx, r,
 611                         "failed to create kerberos keytab");
 612                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 613         }
 614
 615         return ADS_SUCCESS;
 616 }
 617 #endif /* WITH_ADS */
 618
 619 /****************************************************************
 620  Store the machine password and domain SID
 621 ****************************************************************/
 622
 623 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 624                                                  struct libnet_JoinCtx *r)
 625 {
 626         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 627                                       r->out.domain_sid))
 628         {
 629                 DEBUG(1,("Failed to save domain sid\n"));
 630                 return false;
 631         }
 632
 633         if (!secrets_store_machine_password(r->in.machine_password,
 634                                             r->out.netbios_domain_name,
 635                                             r->in.secure_channel_type))
 636         {
 637                 DEBUG(1,("Failed to save machine password\n"));
 638                 return false;
 639         }
 640
 641         return true;
 642 }
 643
 644 /****************************************************************
 645  Connect dc's IPC$ share
 646 ****************************************************************/
 647
 648 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 649                                            const char *user,
 650                                            const char *pass,
 651                                            bool use_kerberos,
 652                                            struct cli_state **cli)
 653 {
 654         int flags = 0;
 655
 656         if (use_kerberos) {
 657                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 658         }
 659
 660         if (use_kerberos && pass) {
 661                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 662         }
 663
 664         return cli_full_connection(cli, NULL,
 665                                    dc,
 666                                    NULL, 0,
 667                                    "IPC$", "IPC",
 668                                    user,
 669                                    NULL,
 670                                    pass,
 671                                    flags,
 672                                    Undefined, NULL);
 673 }
 674
 675 /****************************************************************
 676  Lookup domain dc's info
 677 ****************************************************************/
 678
 679 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 680                                           struct libnet_JoinCtx *r,
 681                                           struct cli_state **cli)
 682 {
 683         struct rpc_pipe_client *pipe_hnd = NULL;
 684         struct policy_handle lsa_pol;
 685         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 686         union lsa_PolicyInformation *info = NULL;
 687
 688         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 689                                             r->in.admin_account,
 690                                             r->in.admin_password,
 691                                             r->in.use_kerberos,
 692                                             cli);
 693         if (!NT_STATUS_IS_OK(status)) {
 694                 goto done;
 695         }
 696
 697         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 698                                           &pipe_hnd);
 699         if (!NT_STATUS_IS_OK(status)) {
 700                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 701                         nt_errstr(status)));
 702                 goto done;
 703         }
 704
 705         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 706                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 707         if (!NT_STATUS_IS_OK(status)) {
 708                 goto done;
 709         }
 710
 711         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
 712                                              &lsa_pol,
 713                                              LSA_POLICY_INFO_DNS,
 714                                              &info);
 715         if (NT_STATUS_IS_OK(status)) {
 716                 r->out.domain_is_ad = true;
 717                 r->out.netbios_domain_name = info->dns.name.string;
 718                 r->out.dns_domain_name = info->dns.dns_domain.string;
 719                 r->out.forest_name = info->dns.dns_forest.string;
 720                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->dns.sid);
 721                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 722         }
 723
 724         if (!NT_STATUS_IS_OK(status)) {
 725                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
 726                                                     &lsa_pol,
 727                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 728                                                     &info);
 729                 if (!NT_STATUS_IS_OK(status)) {
 730                         goto done;
 731                 }
 732
 733                 r->out.netbios_domain_name = info->account_domain.name.string;
 734                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->account_domain.sid);
 735                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 736         }
 737
 738         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
 739         TALLOC_FREE(pipe_hnd);
 740
 741  done:
 742         return status;
 743 }
 744
 745 /****************************************************************
 746  Do the domain join unsecure
 747 ****************************************************************/
 748
 749 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 750                                                     struct libnet_JoinCtx *r,
 751                                                     struct cli_state *cli)
 752 {
 753         struct rpc_pipe_client *pipe_hnd = NULL;
 754         unsigned char orig_trust_passwd_hash[16];
 755         unsigned char new_trust_passwd_hash[16];
 756         fstring trust_passwd;
 757         NTSTATUS status;
 758
 759         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
 760                                           &pipe_hnd);
 761         if (!NT_STATUS_IS_OK(status)) {
 762                 return status;
 763         }
 764
 765         if (!r->in.machine_password) {
 766                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 767                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 768         }
 769
 770         E_md4hash(r->in.machine_password, new_trust_passwd_hash);
 771
 772         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 773         fstrcpy(trust_passwd, r->in.admin_password);
 774         strlower_m(trust_passwd);
 775
 776         /*
 777          * Machine names can be 15 characters, but the max length on
 778          * a password is 14.  --jerry
 779          */
 780
 781         trust_passwd[14] = '\0';
 782
 783         E_md4hash(trust_passwd, orig_trust_passwd_hash);
 784
 785         status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
 786                                                     orig_trust_passwd_hash,
 787                                                     r->in.machine_password,
 788                                                     new_trust_passwd_hash,
 789                                                     r->in.secure_channel_type);
 790
 791         return status;
 792 }
 793
 794 /****************************************************************
 795  Do the domain join
 796 ****************************************************************/
 797
 798 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 799                                            struct libnet_JoinCtx *r,
 800                                            struct cli_state *cli)
 801 {
 802         struct rpc_pipe_client *pipe_hnd = NULL;
 803         struct policy_handle sam_pol, domain_pol, user_pol;
 804         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 805         char *acct_name;
 806         struct lsa_String lsa_acct_name;
 807         uint32_t user_rid;
 808         uint32_t acct_flags = ACB_WSTRUST;
 809         struct samr_Ids user_rids;
 810         struct samr_Ids name_types;
 811         union samr_UserInfo user_info;
 812
 813         struct samr_CryptPassword crypt_pwd;
 814         struct samr_CryptPasswordEx crypt_pwd_ex;
 815
 816         ZERO_STRUCT(sam_pol);
 817         ZERO_STRUCT(domain_pol);
 818         ZERO_STRUCT(user_pol);
 819
 820         switch (r->in.secure_channel_type) {
 821         case SEC_CHAN_WKSTA:
 822                 acct_flags = ACB_WSTRUST;
 823                 break;
 824         case SEC_CHAN_BDC:
 825                 acct_flags = ACB_SVRTRUST;
 826                 break;
 827         default:
 828                 return NT_STATUS_INVALID_PARAMETER;
 829         }
 830
 831         if (!r->in.machine_password) {
 832                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 833                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 834         }
 835
 836         /* Open the domain */
 837
 838         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 839                                           &pipe_hnd);
 840         if (!NT_STATUS_IS_OK(status)) {
 841                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 842                         nt_errstr(status)));
 843                 goto done;
 844         }
 845
 846         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
 847                                       pipe_hnd->desthost,
 848                                       SAMR_ACCESS_ENUM_DOMAINS
 849                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
 850                                       &sam_pol);
 851         if (!NT_STATUS_IS_OK(status)) {
 852                 goto done;
 853         }
 854
 855         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
 856                                         &sam_pol,
 857                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
 858                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
 859                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 860                                         r->out.domain_sid,
 861                                         &domain_pol);
 862         if (!NT_STATUS_IS_OK(status)) {
 863                 goto done;
 864         }
 865
 866         /* Create domain user */
 867
 868         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 869         strlower_m(acct_name);
 870
 871         init_lsa_String(&lsa_acct_name, acct_name);
 872
 873         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 874                 uint32_t access_desired =
 875                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 876                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 877                         SAMR_USER_ACCESS_SET_PASSWORD |
 878                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 879                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 880                 uint32_t access_granted = 0;
 881
 882                 DEBUG(10,("Creating account with desired access mask: %d\n",
 883                         access_desired));
 884
 885                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
 886                                                  &domain_pol,
 887                                                  &lsa_acct_name,
 888                                                  acct_flags,
 889                                                  access_desired,
 890                                                  &user_pol,
 891                                                  &access_granted,
 892                                                  &user_rid);
 893                 if (!NT_STATUS_IS_OK(status) &&
 894                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 895
 896                         DEBUG(10,("Creation of workstation account failed: %s\n",
 897                                 nt_errstr(status)));
 898
 899                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 900                            username/password combo but the user does not have
 901                            administrator access. */
 902
 903                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 904                                 libnet_join_set_error_string(mem_ctx, r,
 905                                         "User specified does not have "
 906                                         "administrator privileges");
 907                         }
 908
 909                         goto done;
 910                 }
 911
 912                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 913                         if (!(r->in.join_flags &
 914                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 915                                 goto done;
 916                         }
 917                 }
 918
 919                 /* We *must* do this.... don't ask... */
 920
 921                 if (NT_STATUS_IS_OK(status)) {
 922                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 923                 }
 924         }
 925
 926         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
 927                                          &domain_pol,
 928                                          1,
 929                                          &lsa_acct_name,
 930                                          &user_rids,
 931                                          &name_types);
 932         if (!NT_STATUS_IS_OK(status)) {
 933                 goto done;
 934         }
 935
 936         if (name_types.ids[0] != SID_NAME_USER) {
 937                 DEBUG(0,("%s is not a user account (type=%d)\n",
 938                         acct_name, name_types.ids[0]));
 939                 status = NT_STATUS_INVALID_WORKSTATION;
 940                 goto done;
 941         }
 942
 943         user_rid = user_rids.ids[0];
 944
 945         /* Open handle on user */
 946
 947         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
 948                                       &domain_pol,
 949                                       SEC_FLAG_MAXIMUM_ALLOWED,
 950                                       user_rid,
 951                                       &user_pol);
 952         if (!NT_STATUS_IS_OK(status)) {
 953                 goto done;
 954         }
 955
 956         /* Fill in the additional account flags now */
 957
 958         acct_flags |= ACB_PWNOEXP;
 959         if (r->out.domain_is_ad) {
 960 #if !defined(ENCTYPE_ARCFOUR_HMAC)
 961                 acct_flags |= ACB_USE_DES_KEY_ONLY;
 962 #endif
 963                 ;;
 964         }
 965
 966         /* Set account flags on machine account */
 967         ZERO_STRUCT(user_info.info16);
 968         user_info.info16.acct_flags = acct_flags;
 969
 970         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
 971                                          &user_pol,
 972                                          16,
 973                                          &user_info);
 974
 975         if (!NT_STATUS_IS_OK(status)) {
 976
 977                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
 978                                        &user_pol);
 979
 980                 libnet_join_set_error_string(mem_ctx, r,
 981                         "Failed to set account flags for machine account (%s)\n",
 982                         nt_errstr(status));
 983                 goto done;
 984         }
 985
 986         /* Set password on machine account - first try level 26 */
 987
 988         init_samr_CryptPasswordEx(r->in.machine_password,
 989                                   &cli->user_session_key,
 990                                   &crypt_pwd_ex);
 991
 992         user_info.info26.password = crypt_pwd_ex;
 993         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
 994
 995         status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
 996                                           &user_pol,
 997                                           26,
 998                                           &user_info);
 999
1000         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
1001
1002                 /* retry with level 24 */
1003
1004                 init_samr_CryptPassword(r->in.machine_password,
1005                                         &cli->user_session_key,
1006                                         &crypt_pwd);
1007
1008                 user_info.info24.password = crypt_pwd;
1009                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1010
1011                 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
1012                                                   &user_pol,
1013                                                   24,
1014                                                   &user_info);
1015         }
1016
1017         if (!NT_STATUS_IS_OK(status)) {
1018
1019                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
1020                                        &user_pol);
1021
1022                 libnet_join_set_error_string(mem_ctx, r,
1023                         "Failed to set password for machine account (%s)\n",
1024                         nt_errstr(status));
1025                 goto done;
1026         }
1027
1028         status = NT_STATUS_OK;
1029
1030  done:
1031         if (!pipe_hnd) {
1032                 return status;
1033         }
1034
1035         if (is_valid_policy_hnd(&sam_pol)) {
1036                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1037         }
1038         if (is_valid_policy_hnd(&domain_pol)) {
1039                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1040         }
1041         if (is_valid_policy_hnd(&user_pol)) {
1042                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1043         }
1044         TALLOC_FREE(pipe_hnd);
1045
1046         return status;
1047 }
1048
1049 /****************************************************************
1050 ****************************************************************/
1051
1052 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1053                         const char *machine_name,
1054                         const char *dc_name)
1055 {
1056         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1057         struct cli_state *cli = NULL;
1058         struct rpc_pipe_client *pipe_hnd = NULL;
1059         struct rpc_pipe_client *netlogon_pipe = NULL;
1060         NTSTATUS status;
1061         char *machine_password = NULL;
1062         char *machine_account = NULL;
1063
1064         if (!dc_name) {
1065                 return NT_STATUS_INVALID_PARAMETER;
1066         }
1067
1068         if (!secrets_init()) {
1069                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1070         }
1071
1072         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1073                                                           NULL, NULL);
1074         if (!machine_password) {
1075                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1076         }
1077
1078         if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1079                 SAFE_FREE(machine_password);
1080                 return NT_STATUS_NO_MEMORY;
1081         }
1082
1083         status = cli_full_connection(&cli, NULL,
1084                                      dc_name,
1085                                      NULL, 0,
1086                                      "IPC$", "IPC",
1087                                      machine_account,
1088                                      NULL,
1089                                      machine_password,
1090                                      0,
1091                                      Undefined, NULL);
1092         free(machine_account);
1093         free(machine_password);
1094
1095         if (!NT_STATUS_IS_OK(status)) {
1096                 status = cli_full_connection(&cli, NULL,
1097                                              dc_name,
1098                                              NULL, 0,
1099                                              "IPC$", "IPC",
1100                                              "",
1101                                              NULL,
1102                                              "",
1103                                              0,
1104                                              Undefined, NULL);
1105         }
1106
1107         if (!NT_STATUS_IS_OK(status)) {
1108                 return status;
1109         }
1110
1111         status = get_schannel_session_key(cli, netbios_domain_name,
1112                                           &neg_flags, &netlogon_pipe);
1113         if (!NT_STATUS_IS_OK(status)) {
1114                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1115                         cli_shutdown(cli);
1116                         return NT_STATUS_OK;
1117                 }
1118
1119                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1120                         "key from server %s for domain %s. Error was %s\n",
1121                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1122                 cli_shutdown(cli);
1123                 return status;
1124         }
1125
1126         if (!lp_client_schannel()) {
1127                 cli_shutdown(cli);
1128                 return NT_STATUS_OK;
1129         }
1130
1131         status = cli_rpc_pipe_open_schannel_with_key(
1132                 cli, &ndr_table_netlogon.syntax_id, PIPE_AUTH_LEVEL_PRIVACY,
1133                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1134
1135         cli_shutdown(cli);
1136
1137         if (!NT_STATUS_IS_OK(status)) {
1138                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1139                         "on netlogon pipe to server %s for domain %s. "
1140                         "Error was %s\n",
1141                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1142                 return status;
1143         }
1144
1145         return NT_STATUS_OK;
1146 }
1147
1148 /****************************************************************
1149 ****************************************************************/
1150
1151 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1152                                       struct libnet_JoinCtx *r)
1153 {
1154         NTSTATUS status;
1155
1156         status = libnet_join_ok(r->out.netbios_domain_name,
1157                                 r->in.machine_name,
1158                                 r->in.dc_name);
1159         if (!NT_STATUS_IS_OK(status)) {
1160                 libnet_join_set_error_string(mem_ctx, r,
1161                         "failed to verify domain membership after joining: %s",
1162                         get_friendly_nt_error_msg(status));
1163                 return WERR_SETUP_NOT_JOINED;
1164         }
1165
1166         return WERR_OK;
1167 }
1168
1169 /****************************************************************
1170 ****************************************************************/
1171
1172 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1173                                                     struct libnet_UnjoinCtx *r)
1174 {
1175         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1176                 return false;
1177         }
1178
1179         if (!secrets_delete_domain_sid(lp_workgroup())) {
1180                 return false;
1181         }
1182
1183         return true;
1184 }
1185
1186 /****************************************************************
1187 ****************************************************************/
1188
1189 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1190                                              struct libnet_UnjoinCtx *r)
1191 {
1192         struct cli_state *cli = NULL;
1193         struct rpc_pipe_client *pipe_hnd = NULL;
1194         struct policy_handle sam_pol, domain_pol, user_pol;
1195         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1196         char *acct_name;
1197         uint32_t user_rid;
1198         struct lsa_String lsa_acct_name;
1199         struct samr_Ids user_rids;
1200         struct samr_Ids name_types;
1201         union samr_UserInfo *info = NULL;
1202
1203         ZERO_STRUCT(sam_pol);
1204         ZERO_STRUCT(domain_pol);
1205         ZERO_STRUCT(user_pol);
1206
1207         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1208                                             r->in.admin_account,
1209                                             r->in.admin_password,
1210                                             r->in.use_kerberos,
1211                                             &cli);
1212         if (!NT_STATUS_IS_OK(status)) {
1213                 goto done;
1214         }
1215
1216         /* Open the domain */
1217
1218         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1219                                           &pipe_hnd);
1220         if (!NT_STATUS_IS_OK(status)) {
1221                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1222                         nt_errstr(status)));
1223                 goto done;
1224         }
1225
1226         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1227                                       pipe_hnd->desthost,
1228                                       SEC_FLAG_MAXIMUM_ALLOWED,
1229                                       &sam_pol);
1230         if (!NT_STATUS_IS_OK(status)) {
1231                 goto done;
1232         }
1233
1234         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1235                                         &sam_pol,
1236                                         SEC_FLAG_MAXIMUM_ALLOWED,
1237                                         r->in.domain_sid,
1238                                         &domain_pol);
1239         if (!NT_STATUS_IS_OK(status)) {
1240                 goto done;
1241         }
1242
1243         /* Create domain user */
1244
1245         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1246         strlower_m(acct_name);
1247
1248         init_lsa_String(&lsa_acct_name, acct_name);
1249
1250         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1251                                          &domain_pol,
1252                                          1,
1253                                          &lsa_acct_name,
1254                                          &user_rids,
1255                                          &name_types);
1256
1257         if (!NT_STATUS_IS_OK(status)) {
1258                 goto done;
1259         }
1260
1261         if (name_types.ids[0] != SID_NAME_USER) {
1262                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1263                         name_types.ids[0]));
1264                 status = NT_STATUS_INVALID_WORKSTATION;
1265                 goto done;
1266         }
1267
1268         user_rid = user_rids.ids[0];
1269
1270         /* Open handle on user */
1271
1272         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1273                                       &domain_pol,
1274                                       SEC_FLAG_MAXIMUM_ALLOWED,
1275                                       user_rid,
1276                                       &user_pol);
1277         if (!NT_STATUS_IS_OK(status)) {
1278                 goto done;
1279         }
1280
1281         /* Get user info */
1282
1283         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1284                                            &user_pol,
1285                                            16,
1286                                            &info);
1287         if (!NT_STATUS_IS_OK(status)) {
1288                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1289                 goto done;
1290         }
1291
1292         /* now disable and setuser info */
1293
1294         info->info16.acct_flags |= ACB_DISABLED;
1295
1296         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1297                                          &user_pol,
1298                                          16,
1299                                          info);
1300
1301         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1302
1303 done:
1304         if (pipe_hnd) {
1305                 if (is_valid_policy_hnd(&domain_pol)) {
1306                         rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1307                 }
1308                 if (is_valid_policy_hnd(&sam_pol)) {
1309                         rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1310                 }
1311                 TALLOC_FREE(pipe_hnd);
1312         }
1313
1314         if (cli) {
1315                 cli_shutdown(cli);
1316         }
1317
1318         return status;
1319 }
1320
1321 /****************************************************************
1322 ****************************************************************/
1323
1324 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1325 {
1326         WERROR werr;
1327         struct smbconf_ctx *ctx;
1328
1329         werr = smbconf_init_reg(r, &ctx, NULL);
1330         if (!W_ERROR_IS_OK(werr)) {
1331                 goto done;
1332         }
1333
1334         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1335
1336                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1337                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1338
1339                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1340                                                     r->in.domain_name);
1341
1342                 smbconf_delete_global_parameter(ctx, "realm");
1343                 goto done;
1344         }
1345
1346         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1347         W_ERROR_NOT_OK_GOTO_DONE(werr);
1348
1349         werr = smbconf_set_global_parameter(ctx, "workgroup",
1350                                             r->out.netbios_domain_name);
1351         W_ERROR_NOT_OK_GOTO_DONE(werr);
1352
1353         if (r->out.domain_is_ad) {
1354                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1355                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1356
1357                 werr = smbconf_set_global_parameter(ctx, "realm",
1358                                                     r->out.dns_domain_name);
1359                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1360         }
1361
1362  done:
1363         smbconf_shutdown(ctx);
1364         return werr;
1365 }
1366
1367 /****************************************************************
1368 ****************************************************************/
1369
1370 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1371 {
1372         WERROR werr = WERR_OK;
1373         struct smbconf_ctx *ctx;
1374
1375         werr = smbconf_init_reg(r, &ctx, NULL);
1376         if (!W_ERROR_IS_OK(werr)) {
1377                 goto done;
1378         }
1379
1380         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1381
1382                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1383                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1384
1385                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1386                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1387
1388                 smbconf_delete_global_parameter(ctx, "realm");
1389         }
1390
1391  done:
1392         smbconf_shutdown(ctx);
1393         return werr;
1394 }
1395
1396 /****************************************************************
1397 ****************************************************************/
1398
1399 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1400 {
1401         WERROR werr;
1402
1403         if (!W_ERROR_IS_OK(r->out.result)) {
1404                 return r->out.result;
1405         }
1406
1407         if (!r->in.modify_config) {
1408                 return WERR_OK;
1409         }
1410
1411         werr = do_join_modify_vals_config(r);
1412         if (!W_ERROR_IS_OK(werr)) {
1413                 return werr;
1414         }
1415
1416         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1417
1418         r->out.modified_config = true;
1419         r->out.result = werr;
1420
1421         return werr;
1422 }
1423
1424 /****************************************************************
1425 ****************************************************************/
1426
1427 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1428 {
1429         WERROR werr;
1430
1431         if (!W_ERROR_IS_OK(r->out.result)) {
1432                 return r->out.result;
1433         }
1434
1435         if (!r->in.modify_config) {
1436                 return WERR_OK;
1437         }
1438
1439         werr = do_unjoin_modify_vals_config(r);
1440         if (!W_ERROR_IS_OK(werr)) {
1441                 return werr;
1442         }
1443
1444         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1445
1446         r->out.modified_config = true;
1447         r->out.result = werr;
1448
1449         return werr;
1450 }
1451
1452 /****************************************************************
1453 ****************************************************************/
1454
1455 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1456                                    const char *domain_str,
1457                                    const char **domain_p,
1458                                    const char **dc_p)
1459 {
1460         char *domain = NULL;
1461         char *dc = NULL;
1462         const char *p = NULL;
1463
1464         if (!domain_str || !domain_p || !dc_p) {
1465                 return false;
1466         }
1467
1468         p = strchr_m(domain_str, '\\');
1469
1470         if (p != NULL) {
1471                 domain = talloc_strndup(mem_ctx, domain_str,
1472                                          PTR_DIFF(p, domain_str));
1473                 dc = talloc_strdup(mem_ctx, p+1);
1474                 if (!dc) {
1475                         return false;
1476                 }
1477         } else {
1478                 domain = talloc_strdup(mem_ctx, domain_str);
1479                 dc = NULL;
1480         }
1481         if (!domain) {
1482                 return false;
1483         }
1484
1485         *domain_p = domain;
1486
1487         if (!*dc_p && dc) {
1488                 *dc_p = dc;
1489         }
1490
1491         return true;
1492 }
1493
1494 /****************************************************************
1495 ****************************************************************/
1496
1497 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1498                                          struct libnet_JoinCtx *r)
1499 {
1500         if (!r->in.domain_name) {
1501                 libnet_join_set_error_string(mem_ctx, r,
1502                         "No domain name defined");
1503                 return WERR_INVALID_PARAM;
1504         }
1505
1506         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1507                                     &r->in.domain_name,
1508                                     &r->in.dc_name)) {
1509                 libnet_join_set_error_string(mem_ctx, r,
1510                         "Failed to parse domain name");
1511                 return WERR_INVALID_PARAM;
1512         }
1513
1514         if (IS_DC) {
1515                 return WERR_SETUP_DOMAIN_CONTROLLER;
1516         }
1517
1518         if (!secrets_init()) {
1519                 libnet_join_set_error_string(mem_ctx, r,
1520                         "Unable to open secrets database");
1521                 return WERR_CAN_NOT_COMPLETE;
1522         }
1523
1524         return WERR_OK;
1525 }
1526
1527 /****************************************************************
1528 ****************************************************************/
1529
1530 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1531 {
1532         NTSTATUS status;
1533
1534         /* Try adding dom admins to builtin\admins. Only log failures. */
1535         status = create_builtin_administrators(domain_sid);
1536         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1537                 DEBUG(10,("Unable to auto-add domain administrators to "
1538                           "BUILTIN\\Administrators during join because "
1539                           "winbindd must be running."));
1540         } else if (!NT_STATUS_IS_OK(status)) {
1541                 DEBUG(5, ("Failed to auto-add domain administrators to "
1542                           "BUILTIN\\Administrators during join: %s\n",
1543                           nt_errstr(status)));
1544         }
1545
1546         /* Try adding dom users to builtin\users. Only log failures. */
1547         status = create_builtin_users(domain_sid);
1548         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1549                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1550                           "during join because winbindd must be running."));
1551         } else if (!NT_STATUS_IS_OK(status)) {
1552                 DEBUG(5, ("Failed to auto-add domain administrators to "
1553                           "BUILTIN\\Administrators during join: %s\n",
1554                           nt_errstr(status)));
1555         }
1556 }
1557
1558 /****************************************************************
1559 ****************************************************************/
1560
1561 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1562                                           struct libnet_JoinCtx *r)
1563 {
1564         WERROR werr;
1565
1566         if (!W_ERROR_IS_OK(r->out.result)) {
1567                 return r->out.result;
1568         }
1569
1570         werr = do_JoinConfig(r);
1571         if (!W_ERROR_IS_OK(werr)) {
1572                 return werr;
1573         }
1574
1575         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1576                 return WERR_OK;
1577         }
1578
1579         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1580         if (r->out.dns_domain_name) {
1581                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1582         }
1583
1584 #ifdef WITH_ADS
1585         if (r->out.domain_is_ad &&
1586             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1587                 ADS_STATUS ads_status;
1588
1589                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1590                 if (!ADS_ERR_OK(ads_status)) {
1591                         return WERR_GENERAL_FAILURE;
1592                 }
1593         }
1594 #endif /* WITH_ADS */
1595
1596         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1597
1598         return WERR_OK;
1599 }
1600
1601 /****************************************************************
1602 ****************************************************************/
1603
1604 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1605 {
1606         const char *krb5_cc_env = NULL;
1607
1608         if (r->in.ads) {
1609                 ads_destroy(&r->in.ads);
1610         }
1611
1612         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1613         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1614                 unsetenv(KRB5_ENV_CCNAME);
1615         }
1616
1617         return 0;
1618 }
1619
1620 /****************************************************************
1621 ****************************************************************/
1622
1623 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1624 {
1625         const char *krb5_cc_env = NULL;
1626
1627         if (r->in.ads) {
1628                 ads_destroy(&r->in.ads);
1629         }
1630
1631         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1632         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1633                 unsetenv(KRB5_ENV_CCNAME);
1634         }
1635
1636         return 0;
1637 }
1638
1639 /****************************************************************
1640 ****************************************************************/
1641
1642 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1643                            struct libnet_JoinCtx **r)
1644 {
1645         struct libnet_JoinCtx *ctx;
1646         const char *krb5_cc_env = NULL;
1647
1648         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1649         if (!ctx) {
1650                 return WERR_NOMEM;
1651         }
1652
1653         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1654
1655         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1656         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1657
1658         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1659         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1660                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1661                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1662                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1663         }
1664
1665         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1666
1667         *r = ctx;
1668
1669         return WERR_OK;
1670 }
1671
1672 /****************************************************************
1673 ****************************************************************/
1674
1675 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1676                              struct libnet_UnjoinCtx **r)
1677 {
1678         struct libnet_UnjoinCtx *ctx;
1679         const char *krb5_cc_env = NULL;
1680
1681         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1682         if (!ctx) {
1683                 return WERR_NOMEM;
1684         }
1685
1686         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1687
1688         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1689         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1690
1691         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1692         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1693                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1694                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1695                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1696         }
1697
1698         *r = ctx;
1699
1700         return WERR_OK;
1701 }
1702
1703 /****************************************************************
1704 ****************************************************************/
1705
1706 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1707                                        struct libnet_JoinCtx *r)
1708 {
1709         bool valid_security = false;
1710         bool valid_workgroup = false;
1711         bool valid_realm = false;
1712
1713         /* check if configuration is already set correctly */
1714
1715         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1716
1717         switch (r->out.domain_is_ad) {
1718                 case false:
1719                         valid_security = (lp_security() == SEC_DOMAIN);
1720                         if (valid_workgroup && valid_security) {
1721                                 /* nothing to be done */
1722                                 return WERR_OK;
1723                         }
1724                         break;
1725                 case true:
1726                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1727                         switch (lp_security()) {
1728                         case SEC_DOMAIN:
1729                         case SEC_ADS:
1730                                 valid_security = true;
1731                         }
1732
1733                         if (valid_workgroup && valid_realm && valid_security) {
1734                                 /* nothing to be done */
1735                                 return WERR_OK;
1736                         }
1737                         break;
1738         }
1739
1740         /* check if we are supposed to manipulate configuration */
1741
1742         if (!r->in.modify_config) {
1743
1744                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1745
1746                 if (!valid_workgroup) {
1747                         wrong_conf = talloc_asprintf_append(wrong_conf,
1748                                 "\"workgroup\" set to '%s', should be '%s'",
1749                                 lp_workgroup(), r->out.netbios_domain_name);
1750                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1751                 }
1752
1753                 if (!valid_realm) {
1754                         wrong_conf = talloc_asprintf_append(wrong_conf,
1755                                 "\"realm\" set to '%s', should be '%s'",
1756                                 lp_realm(), r->out.dns_domain_name);
1757                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1758                 }
1759
1760                 if (!valid_security) {
1761                         const char *sec = NULL;
1762                         switch (lp_security()) {
1763                         case SEC_SHARE: sec = "share"; break;
1764                         case SEC_USER:  sec = "user"; break;
1765                         case SEC_DOMAIN: sec = "domain"; break;
1766                         case SEC_ADS: sec = "ads"; break;
1767                         }
1768                         wrong_conf = talloc_asprintf_append(wrong_conf,
1769                                 "\"security\" set to '%s', should be %s",
1770                                 sec, r->out.domain_is_ad ?
1771                                 "either 'domain' or 'ads'" : "'domain'");
1772                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1773                 }
1774
1775                 libnet_join_set_error_string(mem_ctx, r,
1776                         "Invalid configuration (%s) and configuration modification "
1777                         "was not requested", wrong_conf);
1778                 return WERR_CAN_NOT_COMPLETE;
1779         }
1780
1781         /* check if we are able to manipulate configuration */
1782
1783         if (!lp_config_backend_is_registry()) {
1784                 libnet_join_set_error_string(mem_ctx, r,
1785                         "Configuration manipulation requested but not "
1786                         "supported by backend");
1787                 return WERR_NOT_SUPPORTED;
1788         }
1789
1790         return WERR_OK;
1791 }
1792
1793 /****************************************************************
1794 ****************************************************************/
1795
1796 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1797                                 struct libnet_JoinCtx *r)
1798 {
1799         NTSTATUS status;
1800         WERROR werr;
1801         struct cli_state *cli = NULL;
1802 #ifdef WITH_ADS
1803         ADS_STATUS ads_status;
1804 #endif /* WITH_ADS */
1805
1806         if (!r->in.dc_name) {
1807                 struct netr_DsRGetDCNameInfo *info;
1808                 const char *dc;
1809                 status = dsgetdcname(mem_ctx,
1810                                      r->in.msg_ctx,
1811                                      r->in.domain_name,
1812                                      NULL,
1813                                      NULL,
1814                                      DS_FORCE_REDISCOVERY |
1815                                      DS_DIRECTORY_SERVICE_REQUIRED |
1816                                      DS_WRITABLE_REQUIRED |
1817                                      DS_RETURN_DNS_NAME,
1818                                      &info);
1819                 if (!NT_STATUS_IS_OK(status)) {
1820                         libnet_join_set_error_string(mem_ctx, r,
1821                                 "failed to find DC for domain %s",
1822                                 r->in.domain_name,
1823                                 get_friendly_nt_error_msg(status));
1824                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1825                 }
1826
1827                 dc = strip_hostname(info->dc_unc);
1828                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1829                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1830         }
1831
1832         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1833         if (!NT_STATUS_IS_OK(status)) {
1834                 libnet_join_set_error_string(mem_ctx, r,
1835                         "failed to lookup DC info for domain '%s' over rpc: %s",
1836                         r->in.domain_name, get_friendly_nt_error_msg(status));
1837                 return ntstatus_to_werror(status);
1838         }
1839
1840         werr = libnet_join_check_config(mem_ctx, r);
1841         if (!W_ERROR_IS_OK(werr)) {
1842                 goto done;
1843         }
1844
1845 #ifdef WITH_ADS
1846         if (r->out.domain_is_ad && r->in.account_ou &&
1847             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1848
1849                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1850                 if (!ADS_ERR_OK(ads_status)) {
1851                         return WERR_DEFAULT_JOIN_REQUIRED;
1852                 }
1853
1854                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1855                 if (!ADS_ERR_OK(ads_status)) {
1856                         libnet_join_set_error_string(mem_ctx, r,
1857                                 "failed to precreate account in ou %s: %s",
1858                                 r->in.account_ou,
1859                                 ads_errstr(ads_status));
1860                         return WERR_DEFAULT_JOIN_REQUIRED;
1861                 }
1862
1863                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1864         }
1865 #endif /* WITH_ADS */
1866
1867         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
1868             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
1869                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
1870         } else {
1871                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
1872         }
1873         if (!NT_STATUS_IS_OK(status)) {
1874                 libnet_join_set_error_string(mem_ctx, r,
1875                         "failed to join domain '%s' over rpc: %s",
1876                         r->in.domain_name, get_friendly_nt_error_msg(status));
1877                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1878                         return WERR_SETUP_ALREADY_JOINED;
1879                 }
1880                 werr = ntstatus_to_werror(status);
1881                 goto done;
1882         }
1883
1884         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1885                 werr = WERR_SETUP_NOT_JOINED;
1886                 goto done;
1887         }
1888
1889         werr = WERR_OK;
1890
1891  done:
1892         if (cli) {
1893                 cli_shutdown(cli);
1894         }
1895
1896         return werr;
1897 }
1898
1899 /****************************************************************
1900 ****************************************************************/
1901
1902 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
1903                                    struct libnet_JoinCtx *r)
1904 {
1905         WERROR werr;
1906         struct libnet_UnjoinCtx *u = NULL;
1907
1908         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
1909         if (!W_ERROR_IS_OK(werr)) {
1910                 return werr;
1911         }
1912
1913         u->in.debug             = r->in.debug;
1914         u->in.dc_name           = r->in.dc_name;
1915         u->in.domain_name       = r->in.domain_name;
1916         u->in.admin_account     = r->in.admin_account;
1917         u->in.admin_password    = r->in.admin_password;
1918         u->in.modify_config     = r->in.modify_config;
1919         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
1920                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
1921
1922         werr = libnet_Unjoin(mem_ctx, u);
1923         TALLOC_FREE(u);
1924
1925         return werr;
1926 }
1927
1928 /****************************************************************
1929 ****************************************************************/
1930
1931 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1932                    struct libnet_JoinCtx *r)
1933 {
1934         WERROR werr;
1935
1936         if (r->in.debug) {
1937                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1938         }
1939
1940         werr = libnet_join_pre_processing(mem_ctx, r);
1941         if (!W_ERROR_IS_OK(werr)) {
1942                 goto done;
1943         }
1944
1945         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1946                 werr = libnet_DomainJoin(mem_ctx, r);
1947                 if (!W_ERROR_IS_OK(werr)) {
1948                         goto done;
1949                 }
1950         }
1951
1952         werr = libnet_join_post_processing(mem_ctx, r);
1953         if (!W_ERROR_IS_OK(werr)) {
1954                 goto done;
1955         }
1956
1957         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1958                 werr = libnet_join_post_verify(mem_ctx, r);
1959                 if (!W_ERROR_IS_OK(werr)) {
1960                         libnet_join_rollback(mem_ctx, r);
1961                 }
1962         }
1963
1964  done:
1965         r->out.result = werr;
1966
1967         if (r->in.debug) {
1968                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1969         }
1970         return werr;
1971 }
1972
1973 /****************************************************************
1974 ****************************************************************/
1975
1976 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1977                                   struct libnet_UnjoinCtx *r)
1978 {
1979         NTSTATUS status;
1980
1981         if (!r->in.domain_sid) {
1982                 struct dom_sid sid;
1983                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1984                         libnet_unjoin_set_error_string(mem_ctx, r,
1985                                 "Unable to fetch domain sid: are we joined?");
1986                         return WERR_SETUP_NOT_JOINED;
1987                 }
1988                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1989                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1990         }
1991
1992         if (!r->in.dc_name) {
1993                 struct netr_DsRGetDCNameInfo *info;
1994                 const char *dc;
1995                 status = dsgetdcname(mem_ctx,
1996                                      r->in.msg_ctx,
1997                                      r->in.domain_name,
1998                                      NULL,
1999                                      NULL,
2000                                      DS_DIRECTORY_SERVICE_REQUIRED |
2001                                      DS_WRITABLE_REQUIRED |
2002                                      DS_RETURN_DNS_NAME,
2003                                      &info);
2004                 if (!NT_STATUS_IS_OK(status)) {
2005                         libnet_unjoin_set_error_string(mem_ctx, r,
2006                                 "failed to find DC for domain %s",
2007                                 r->in.domain_name,
2008                                 get_friendly_nt_error_msg(status));
2009                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
2010                 }
2011
2012                 dc = strip_hostname(info->dc_unc);
2013                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2014                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2015         }
2016
2017         status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2018         if (!NT_STATUS_IS_OK(status)) {
2019                 libnet_unjoin_set_error_string(mem_ctx, r,
2020                         "failed to disable machine account via rpc: %s",
2021                         get_friendly_nt_error_msg(status));
2022                 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2023                         return WERR_SETUP_NOT_JOINED;
2024                 }
2025                 return ntstatus_to_werror(status);
2026         }
2027
2028         r->out.disabled_machine_account = true;
2029
2030 #ifdef WITH_ADS
2031         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2032                 ADS_STATUS ads_status;
2033                 libnet_unjoin_connect_ads(mem_ctx, r);
2034                 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
2035                 if (!ADS_ERR_OK(ads_status)) {
2036                         libnet_unjoin_set_error_string(mem_ctx, r,
2037                                 "failed to remove machine account from AD: %s",
2038                                 ads_errstr(ads_status));
2039                 } else {
2040                         r->out.deleted_machine_account = true;
2041                         /* dirty hack */
2042                         r->out.dns_domain_name = talloc_strdup(mem_ctx,
2043                                                                r->in.ads->server.realm);
2044                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2045                 }
2046         }
2047 #endif /* WITH_ADS */
2048
2049         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2050
2051         return WERR_OK;
2052 }
2053
2054 /****************************************************************
2055 ****************************************************************/
2056
2057 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2058                                            struct libnet_UnjoinCtx *r)
2059 {
2060         if (!r->in.domain_name) {
2061                 libnet_unjoin_set_error_string(mem_ctx, r,
2062                         "No domain name defined");
2063                 return WERR_INVALID_PARAM;
2064         }
2065
2066         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2067                                     &r->in.domain_name,
2068                                     &r->in.dc_name)) {
2069                 libnet_unjoin_set_error_string(mem_ctx, r,
2070                         "Failed to parse domain name");
2071                 return WERR_INVALID_PARAM;
2072         }
2073
2074         if (IS_DC) {
2075                 return WERR_SETUP_DOMAIN_CONTROLLER;
2076         }
2077
2078         if (!secrets_init()) {
2079                 libnet_unjoin_set_error_string(mem_ctx, r,
2080                         "Unable to open secrets database");
2081                 return WERR_CAN_NOT_COMPLETE;
2082         }
2083
2084         return WERR_OK;
2085 }
2086
2087 /****************************************************************
2088 ****************************************************************/
2089
2090 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2091                                             struct libnet_UnjoinCtx *r)
2092 {
2093         saf_delete(r->out.netbios_domain_name);
2094         saf_delete(r->out.dns_domain_name);
2095
2096         return libnet_unjoin_config(r);
2097 }
2098
2099 /****************************************************************
2100 ****************************************************************/
2101
2102 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2103                      struct libnet_UnjoinCtx *r)
2104 {
2105         WERROR werr;
2106
2107         if (r->in.debug) {
2108                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2109         }
2110
2111         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2112         if (!W_ERROR_IS_OK(werr)) {
2113                 goto done;
2114         }
2115
2116         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2117                 werr = libnet_DomainUnjoin(mem_ctx, r);
2118                 if (!W_ERROR_IS_OK(werr)) {
2119                         libnet_unjoin_config(r);
2120                         goto done;
2121                 }
2122         }
2123
2124         werr = libnet_unjoin_post_processing(mem_ctx, r);
2125         if (!W_ERROR_IS_OK(werr)) {
2126                 goto done;
2127         }
2128
2129  done:
2130         r->out.result = werr;
2131
2132         if (r->in.debug) {
2133                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2134         }
2135
2136         return werr;
2137 }