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 "ads.h"
  23 #include "librpc/gen_ndr/ndr_libnet_join.h"
  24 #include "libnet/libnet_join.h"
  25 #include "libcli/auth/libcli_auth.h"
  26 #include "../librpc/gen_ndr/ndr_samr_c.h"
  27 #include "rpc_client/init_samr.h"
  28 #include "../librpc/gen_ndr/ndr_lsa_c.h"
  29 #include "rpc_client/cli_lsarpc.h"
  30 #include "../librpc/gen_ndr/ndr_netlogon.h"
  31 #include "rpc_client/cli_netlogon.h"
  32 #include "lib/smbconf/smbconf.h"
  33 #include "lib/smbconf/smbconf_reg.h"
  34 #include "../libds/common/flags.h"
  35 #include "secrets.h"
  36 #include "rpc_client/init_lsa.h"
  37 #include "rpc_client/cli_pipe.h"
  38 #include "../libcli/security/security.h"
  39 #include "passdb.h"
  40 #include "libsmb/libsmb.h"
  41
  42 /****************************************************************
  43 ****************************************************************/
  44
  45 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  46         do { \
  47                 char *str = NULL; \
  48                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  49                 DEBUG(1,("libnet_Join:\n%s", str)); \
  50                 TALLOC_FREE(str); \
  51         } while (0)
  52
  53 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  54         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  55 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  56         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  57
  58 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  59         do { \
  60                 char *str = NULL; \
  61                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  62                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  63                 TALLOC_FREE(str); \
  64         } while (0)
  65
  66 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  67         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  68 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  69         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  70
  71 /****************************************************************
  72 ****************************************************************/
  73
  74 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  75                                          struct libnet_JoinCtx *r,
  76                                          const char *format, ...)
  77 {
  78         va_list args;
  79
  80         if (r->out.error_string) {
  81                 return;
  82         }
  83
  84         va_start(args, format);
  85         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  86         va_end(args);
  87 }
  88
  89 /****************************************************************
  90 ****************************************************************/
  91
  92 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  93                                            struct libnet_UnjoinCtx *r,
  94                                            const char *format, ...)
  95 {
  96         va_list args;
  97
  98         if (r->out.error_string) {
  99                 return;
 100         }
 101
 102         va_start(args, format);
 103         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
 104         va_end(args);
 105 }
 106
 107 #ifdef HAVE_ADS
 108
 109 /****************************************************************
 110 ****************************************************************/
 111
 112 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 113                                      const char *netbios_domain_name,
 114                                      const char *dc_name,
 115                                      const char *user_name,
 116                                      const char *password,
 117                                      ADS_STRUCT **ads)
 118 {
 119         ADS_STATUS status;
 120         ADS_STRUCT *my_ads = NULL;
 121         char *cp;
 122
 123         my_ads = ads_init(dns_domain_name,
 124                           netbios_domain_name,
 125                           dc_name);
 126         if (!my_ads) {
 127                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 128         }
 129
 130         if (user_name) {
 131                 SAFE_FREE(my_ads->auth.user_name);
 132                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 133                 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
 134                         *cp++ = '\0';
 135                         SAFE_FREE(my_ads->auth.realm);
 136                         my_ads->auth.realm = smb_xstrdup(cp);
 137                         strupper_m(my_ads->auth.realm);
 138                 }
 139         }
 140
 141         if (password) {
 142                 SAFE_FREE(my_ads->auth.password);
 143                 my_ads->auth.password = SMB_STRDUP(password);
 144         }
 145
 146         status = ads_connect_user_creds(my_ads);
 147         if (!ADS_ERR_OK(status)) {
 148                 ads_destroy(&my_ads);
 149                 return status;
 150         }
 151
 152         *ads = my_ads;
 153         return ADS_SUCCESS;
 154 }
 155
 156 /****************************************************************
 157 ****************************************************************/
 158
 159 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 160                                           struct libnet_JoinCtx *r)
 161 {
 162         ADS_STATUS status;
 163
 164         status = libnet_connect_ads(r->out.dns_domain_name,
 165                                     r->out.netbios_domain_name,
 166                                     r->in.dc_name,
 167                                     r->in.admin_account,
 168                                     r->in.admin_password,
 169                                     &r->in.ads);
 170         if (!ADS_ERR_OK(status)) {
 171                 libnet_join_set_error_string(mem_ctx, r,
 172                         "failed to connect to AD: %s",
 173                         ads_errstr(status));
 174                 return status;
 175         }
 176
 177         if (!r->out.netbios_domain_name) {
 178                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 179                                                            r->in.ads->server.workgroup);
 180                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 181         }
 182
 183         if (!r->out.dns_domain_name) {
 184                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 185                                                        r->in.ads->config.realm);
 186                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 187         }
 188
 189         r->out.domain_is_ad = true;
 190
 191         return ADS_SUCCESS;
 192 }
 193
 194 /****************************************************************
 195 ****************************************************************/
 196
 197 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 198                                             struct libnet_UnjoinCtx *r)
 199 {
 200         ADS_STATUS status;
 201
 202         status = libnet_connect_ads(r->in.domain_name,
 203                                     r->in.domain_name,
 204                                     r->in.dc_name,
 205                                     r->in.admin_account,
 206                                     r->in.admin_password,
 207                                     &r->in.ads);
 208         if (!ADS_ERR_OK(status)) {
 209                 libnet_unjoin_set_error_string(mem_ctx, r,
 210                         "failed to connect to AD: %s",
 211                         ads_errstr(status));
 212         }
 213
 214         return status;
 215 }
 216
 217 /****************************************************************
 218  join a domain using ADS (LDAP mods)
 219 ****************************************************************/
 220
 221 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 222                                                      struct libnet_JoinCtx *r)
 223 {
 224         ADS_STATUS status;
 225         LDAPMessage *res = NULL;
 226         const char *attrs[] = { "dn", NULL };
 227         bool moved = false;
 228
 229         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 230         if (!ADS_ERR_OK(status)) {
 231                 return status;
 232         }
 233
 234         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 235         if (!ADS_ERR_OK(status)) {
 236                 return status;
 237         }
 238
 239         if (ads_count_replies(r->in.ads, res) != 1) {
 240                 ads_msgfree(r->in.ads, res);
 241                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 242         }
 243
 244         ads_msgfree(r->in.ads, res);
 245
 246         /* Attempt to create the machine account and bail if this fails.
 247            Assume that the admin wants exactly what they requested */
 248
 249         status = ads_create_machine_acct(r->in.ads,
 250                                          r->in.machine_name,
 251                                          r->in.account_ou);
 252
 253         if (ADS_ERR_OK(status)) {
 254                 DEBUG(1,("machine account creation created\n"));
 255                 return status;
 256         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 257                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 258                 status = ADS_SUCCESS;
 259         }
 260
 261         if (!ADS_ERR_OK(status)) {
 262                 DEBUG(1,("machine account creation failed\n"));
 263                 return status;
 264         }
 265
 266         status = ads_move_machine_acct(r->in.ads,
 267                                        r->in.machine_name,
 268                                        r->in.account_ou,
 269                                        &moved);
 270         if (!ADS_ERR_OK(status)) {
 271                 DEBUG(1,("failure to locate/move pre-existing "
 272                         "machine account\n"));
 273                 return status;
 274         }
 275
 276         DEBUG(1,("The machine account %s the specified OU.\n",
 277                 moved ? "was moved into" : "already exists in"));
 278
 279         return status;
 280 }
 281
 282 /****************************************************************
 283 ****************************************************************/
 284
 285 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 286                                                     struct libnet_UnjoinCtx *r)
 287 {
 288         ADS_STATUS status;
 289
 290         if (!r->in.ads) {
 291                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 292                 if (!ADS_ERR_OK(status)) {
 293                         libnet_unjoin_set_error_string(mem_ctx, r,
 294                                 "failed to connect to AD: %s",
 295                                 ads_errstr(status));
 296                         return status;
 297                 }
 298         }
 299
 300         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 301         if (!ADS_ERR_OK(status)) {
 302                 libnet_unjoin_set_error_string(mem_ctx, r,
 303                         "failed to leave realm: %s",
 304                         ads_errstr(status));
 305                 return status;
 306         }
 307
 308         return ADS_SUCCESS;
 309 }
 310
 311 /****************************************************************
 312 ****************************************************************/
 313
 314 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 315                                                 struct libnet_JoinCtx *r)
 316 {
 317         ADS_STATUS status;
 318         LDAPMessage *res = NULL;
 319         char *dn = NULL;
 320
 321         if (!r->in.machine_name) {
 322                 return ADS_ERROR(LDAP_NO_MEMORY);
 323         }
 324
 325         status = ads_find_machine_acct(r->in.ads,
 326                                        &res,
 327                                        r->in.machine_name);
 328         if (!ADS_ERR_OK(status)) {
 329                 return status;
 330         }
 331
 332         if (ads_count_replies(r->in.ads, res) != 1) {
 333                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 334                 goto done;
 335         }
 336
 337         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 338         if (!dn) {
 339                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 340                 goto done;
 341         }
 342
 343         r->out.dn = talloc_strdup(mem_ctx, dn);
 344         if (!r->out.dn) {
 345                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 346                 goto done;
 347         }
 348
 349  done:
 350         ads_msgfree(r->in.ads, res);
 351         TALLOC_FREE(dn);
 352
 353         return status;
 354 }
 355
 356 /****************************************************************
 357  Set a machines dNSHostName and servicePrincipalName attributes
 358 ****************************************************************/
 359
 360 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 361                                               struct libnet_JoinCtx *r)
 362 {
 363         ADS_STATUS status;
 364         ADS_MODLIST mods;
 365         fstring my_fqdn;
 366         const char *spn_array[3] = {NULL, NULL, NULL};
 367         char *spn = NULL;
 368
 369         /* Find our DN */
 370
 371         status = libnet_join_find_machine_acct(mem_ctx, r);
 372         if (!ADS_ERR_OK(status)) {
 373                 return status;
 374         }
 375
 376         /* Windows only creates HOST/shortname & HOST/fqdn. */
 377
 378         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 379         if (!spn) {
 380                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 381         }
 382         strupper_m(spn);
 383         spn_array[0] = spn;
 384
 385         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 386             || (strchr(my_fqdn, '.') == NULL)) {
 387                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 388                              r->out.dns_domain_name);
 389         }
 390
 391         strlower_m(my_fqdn);
 392
 393         if (!strequal(my_fqdn, r->in.machine_name)) {
 394                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 395                 if (!spn) {
 396                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 397                 }
 398                 spn_array[1] = spn;
 399         }
 400
 401         mods = ads_init_mods(mem_ctx);
 402         if (!mods) {
 403                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 404         }
 405
 406         /* fields of primary importance */
 407
 408         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 409         if (!ADS_ERR_OK(status)) {
 410                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 411         }
 412
 413         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 414                                  spn_array);
 415         if (!ADS_ERR_OK(status)) {
 416                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 417         }
 418
 419         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 420 }
 421
 422 /****************************************************************
 423 ****************************************************************/
 424
 425 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 426                                               struct libnet_JoinCtx *r)
 427 {
 428         ADS_STATUS status;
 429         ADS_MODLIST mods;
 430
 431         if (!r->in.create_upn) {
 432                 return ADS_SUCCESS;
 433         }
 434
 435         /* Find our DN */
 436
 437         status = libnet_join_find_machine_acct(mem_ctx, r);
 438         if (!ADS_ERR_OK(status)) {
 439                 return status;
 440         }
 441
 442         if (!r->in.upn) {
 443                 r->in.upn = talloc_asprintf(mem_ctx,
 444                                             "host/%s@%s",
 445                                             r->in.machine_name,
 446                                             r->out.dns_domain_name);
 447                 if (!r->in.upn) {
 448                         return ADS_ERROR(LDAP_NO_MEMORY);
 449                 }
 450         }
 451
 452         /* now do the mods */
 453
 454         mods = ads_init_mods(mem_ctx);
 455         if (!mods) {
 456                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 457         }
 458
 459         /* fields of primary importance */
 460
 461         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 462         if (!ADS_ERR_OK(status)) {
 463                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 464         }
 465
 466         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 467 }
 468
 469
 470 /****************************************************************
 471 ****************************************************************/
 472
 473 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 474                                                 struct libnet_JoinCtx *r)
 475 {
 476         ADS_STATUS status;
 477         ADS_MODLIST mods;
 478         char *os_sp = NULL;
 479
 480         if (!r->in.os_name || !r->in.os_version ) {
 481                 return ADS_SUCCESS;
 482         }
 483
 484         /* Find our DN */
 485
 486         status = libnet_join_find_machine_acct(mem_ctx, r);
 487         if (!ADS_ERR_OK(status)) {
 488                 return status;
 489         }
 490
 491         /* now do the mods */
 492
 493         mods = ads_init_mods(mem_ctx);
 494         if (!mods) {
 495                 return ADS_ERROR(LDAP_NO_MEMORY);
 496         }
 497
 498         os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
 499         if (!os_sp) {
 500                 return ADS_ERROR(LDAP_NO_MEMORY);
 501         }
 502
 503         /* fields of primary importance */
 504
 505         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 506                              r->in.os_name);
 507         if (!ADS_ERR_OK(status)) {
 508                 return status;
 509         }
 510
 511         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 512                              r->in.os_version);
 513         if (!ADS_ERR_OK(status)) {
 514                 return status;
 515         }
 516
 517         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 518                              os_sp);
 519         if (!ADS_ERR_OK(status)) {
 520                 return status;
 521         }
 522
 523         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 524 }
 525
 526 /****************************************************************
 527 ****************************************************************/
 528
 529 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 530                                       struct libnet_JoinCtx *r)
 531 {
 532         if (!USE_SYSTEM_KEYTAB) {
 533                 return true;
 534         }
 535
 536         if (ads_keytab_create_default(r->in.ads) != 0) {
 537                 return false;
 538         }
 539
 540         return true;
 541 }
 542
 543 /****************************************************************
 544 ****************************************************************/
 545
 546 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 547                                                  struct libnet_JoinCtx *r)
 548 {
 549         uint32_t domain_func;
 550         ADS_STATUS status;
 551         const char *salt = NULL;
 552         char *std_salt = NULL;
 553
 554         status = ads_domain_func_level(r->in.ads, &domain_func);
 555         if (!ADS_ERR_OK(status)) {
 556                 libnet_join_set_error_string(mem_ctx, r,
 557                         "failed to determine domain functional level: %s",
 558                         ads_errstr(status));
 559                 return false;
 560         }
 561
 562         /* go ahead and setup the default salt */
 563
 564         std_salt = kerberos_standard_des_salt();
 565         if (!std_salt) {
 566                 libnet_join_set_error_string(mem_ctx, r,
 567                         "failed to obtain standard DES salt");
 568                 return false;
 569         }
 570
 571         salt = talloc_strdup(mem_ctx, std_salt);
 572         if (!salt) {
 573                 return false;
 574         }
 575
 576         SAFE_FREE(std_salt);
 577
 578         /* if it's a Windows functional domain, we have to look for the UPN */
 579
 580         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 581                 char *upn;
 582
 583                 upn = ads_get_upn(r->in.ads, mem_ctx,
 584                                   r->in.machine_name);
 585                 if (upn) {
 586                         salt = talloc_strdup(mem_ctx, upn);
 587                         if (!salt) {
 588                                 return false;
 589                         }
 590                 }
 591         }
 592
 593         return kerberos_secrets_store_des_salt(salt);
 594 }
 595
 596 /****************************************************************
 597 ****************************************************************/
 598
 599 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 600                                                   struct libnet_JoinCtx *r)
 601 {
 602         ADS_STATUS status;
 603
 604         if (!r->in.ads) {
 605                 status = libnet_join_connect_ads(mem_ctx, r);
 606                 if (!ADS_ERR_OK(status)) {
 607                         return status;
 608                 }
 609         }
 610
 611         status = libnet_join_set_machine_spn(mem_ctx, r);
 612         if (!ADS_ERR_OK(status)) {
 613                 libnet_join_set_error_string(mem_ctx, r,
 614                         "failed to set machine spn: %s",
 615                         ads_errstr(status));
 616                 return status;
 617         }
 618
 619         status = libnet_join_set_os_attributes(mem_ctx, r);
 620         if (!ADS_ERR_OK(status)) {
 621                 libnet_join_set_error_string(mem_ctx, r,
 622                         "failed to set machine os attributes: %s",
 623                         ads_errstr(status));
 624                 return status;
 625         }
 626
 627         status = libnet_join_set_machine_upn(mem_ctx, r);
 628         if (!ADS_ERR_OK(status)) {
 629                 libnet_join_set_error_string(mem_ctx, r,
 630                         "failed to set machine upn: %s",
 631                         ads_errstr(status));
 632                 return status;
 633         }
 634
 635         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 636                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 637         }
 638
 639         if (!libnet_join_create_keytab(mem_ctx, r)) {
 640                 libnet_join_set_error_string(mem_ctx, r,
 641                         "failed to create kerberos keytab");
 642                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 643         }
 644
 645         return ADS_SUCCESS;
 646 }
 647 #endif /* HAVE_ADS */
 648
 649 /****************************************************************
 650  Store the machine password and domain SID
 651 ****************************************************************/
 652
 653 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 654                                                  struct libnet_JoinCtx *r)
 655 {
 656         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 657                                       r->out.domain_sid))
 658         {
 659                 DEBUG(1,("Failed to save domain sid\n"));
 660                 return false;
 661         }
 662
 663         if (!secrets_store_machine_password(r->in.machine_password,
 664                                             r->out.netbios_domain_name,
 665                                             r->in.secure_channel_type))
 666         {
 667                 DEBUG(1,("Failed to save machine password\n"));
 668                 return false;
 669         }
 670
 671         return true;
 672 }
 673
 674 /****************************************************************
 675  Connect dc's IPC$ share
 676 ****************************************************************/
 677
 678 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 679                                            const char *user,
 680                                            const char *pass,
 681                                            bool use_kerberos,
 682                                            struct cli_state **cli)
 683 {
 684         int flags = 0;
 685
 686         if (use_kerberos) {
 687                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 688         }
 689
 690         if (use_kerberos && pass) {
 691                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 692         }
 693
 694         return cli_full_connection(cli, NULL,
 695                                    dc,
 696                                    NULL, 0,
 697                                    "IPC$", "IPC",
 698                                    user,
 699                                    NULL,
 700                                    pass,
 701                                    flags,
 702                                    Undefined);
 703 }
 704
 705 /****************************************************************
 706  Lookup domain dc's info
 707 ****************************************************************/
 708
 709 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 710                                           struct libnet_JoinCtx *r,
 711                                           struct cli_state **cli)
 712 {
 713         struct rpc_pipe_client *pipe_hnd = NULL;
 714         struct policy_handle lsa_pol;
 715         NTSTATUS status, result;
 716         union lsa_PolicyInformation *info = NULL;
 717         struct dcerpc_binding_handle *b;
 718
 719         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 720                                             r->in.admin_account,
 721                                             r->in.admin_password,
 722                                             r->in.use_kerberos,
 723                                             cli);
 724         if (!NT_STATUS_IS_OK(status)) {
 725                 goto done;
 726         }
 727
 728         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 729                                           &pipe_hnd);
 730         if (!NT_STATUS_IS_OK(status)) {
 731                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 732                         nt_errstr(status)));
 733                 goto done;
 734         }
 735
 736         b = pipe_hnd->binding_handle;
 737
 738         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 739                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 740         if (!NT_STATUS_IS_OK(status)) {
 741                 goto done;
 742         }
 743
 744         status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
 745                                              &lsa_pol,
 746                                              LSA_POLICY_INFO_DNS,
 747                                              &info,
 748                                              &result);
 749         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
 750                 r->out.domain_is_ad = true;
 751                 r->out.netbios_domain_name = info->dns.name.string;
 752                 r->out.dns_domain_name = info->dns.dns_domain.string;
 753                 r->out.forest_name = info->dns.dns_forest.string;
 754                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
 755                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 756         }
 757
 758         if (!NT_STATUS_IS_OK(status)) {
 759                 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
 760                                                     &lsa_pol,
 761                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 762                                                     &info,
 763                                                     &result);
 764                 if (!NT_STATUS_IS_OK(status)) {
 765                         goto done;
 766                 }
 767                 if (!NT_STATUS_IS_OK(result)) {
 768                         status = result;
 769                         goto done;
 770                 }
 771
 772                 r->out.netbios_domain_name = info->account_domain.name.string;
 773                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
 774                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 775         }
 776
 777         dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
 778         TALLOC_FREE(pipe_hnd);
 779
 780  done:
 781         return status;
 782 }
 783
 784 /****************************************************************
 785  Do the domain join unsecure
 786 ****************************************************************/
 787
 788 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 789                                                     struct libnet_JoinCtx *r,
 790                                                     struct cli_state *cli)
 791 {
 792         struct rpc_pipe_client *pipe_hnd = NULL;
 793         unsigned char orig_trust_passwd_hash[16];
 794         unsigned char new_trust_passwd_hash[16];
 795         fstring trust_passwd;
 796         NTSTATUS status;
 797
 798         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
 799                                           &pipe_hnd);
 800         if (!NT_STATUS_IS_OK(status)) {
 801                 return status;
 802         }
 803
 804         if (!r->in.machine_password) {
 805                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 806                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 807         }
 808
 809         E_md4hash(r->in.machine_password, new_trust_passwd_hash);
 810
 811         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 812         fstrcpy(trust_passwd, r->in.admin_password);
 813         strlower_m(trust_passwd);
 814
 815         /*
 816          * Machine names can be 15 characters, but the max length on
 817          * a password is 14.  --jerry
 818          */
 819
 820         trust_passwd[14] = '\0';
 821
 822         E_md4hash(trust_passwd, orig_trust_passwd_hash);
 823
 824         status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
 825                                                     r->in.machine_name,
 826                                                     orig_trust_passwd_hash,
 827                                                     r->in.machine_password,
 828                                                     new_trust_passwd_hash,
 829                                                     r->in.secure_channel_type);
 830
 831         return status;
 832 }
 833
 834 /****************************************************************
 835  Do the domain join
 836 ****************************************************************/
 837
 838 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 839                                            struct libnet_JoinCtx *r,
 840                                            struct cli_state *cli)
 841 {
 842         struct rpc_pipe_client *pipe_hnd = NULL;
 843         struct policy_handle sam_pol, domain_pol, user_pol;
 844         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
 845         char *acct_name;
 846         struct lsa_String lsa_acct_name;
 847         uint32_t user_rid;
 848         uint32_t acct_flags = ACB_WSTRUST;
 849         struct samr_Ids user_rids;
 850         struct samr_Ids name_types;
 851         union samr_UserInfo user_info;
 852         struct dcerpc_binding_handle *b = NULL;
 853
 854         struct samr_CryptPassword crypt_pwd;
 855         struct samr_CryptPasswordEx crypt_pwd_ex;
 856
 857         ZERO_STRUCT(sam_pol);
 858         ZERO_STRUCT(domain_pol);
 859         ZERO_STRUCT(user_pol);
 860
 861         switch (r->in.secure_channel_type) {
 862         case SEC_CHAN_WKSTA:
 863                 acct_flags = ACB_WSTRUST;
 864                 break;
 865         case SEC_CHAN_BDC:
 866                 acct_flags = ACB_SVRTRUST;
 867                 break;
 868         default:
 869                 return NT_STATUS_INVALID_PARAMETER;
 870         }
 871
 872         if (!r->in.machine_password) {
 873                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 874                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 875         }
 876
 877         /* Open the domain */
 878
 879         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 880                                           &pipe_hnd);
 881         if (!NT_STATUS_IS_OK(status)) {
 882                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 883                         nt_errstr(status)));
 884                 goto done;
 885         }
 886
 887         b = pipe_hnd->binding_handle;
 888
 889         status = dcerpc_samr_Connect2(b, mem_ctx,
 890                                       pipe_hnd->desthost,
 891                                       SAMR_ACCESS_ENUM_DOMAINS
 892                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
 893                                       &sam_pol,
 894                                       &result);
 895         if (!NT_STATUS_IS_OK(status)) {
 896                 goto done;
 897         }
 898         if (!NT_STATUS_IS_OK(result)) {
 899                 status = result;
 900                 goto done;
 901         }
 902
 903         status = dcerpc_samr_OpenDomain(b, mem_ctx,
 904                                         &sam_pol,
 905                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
 906                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
 907                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 908                                         r->out.domain_sid,
 909                                         &domain_pol,
 910                                         &result);
 911         if (!NT_STATUS_IS_OK(status)) {
 912                 goto done;
 913         }
 914         if (!NT_STATUS_IS_OK(result)) {
 915                 status = result;
 916                 goto done;
 917         }
 918
 919         /* Create domain user */
 920
 921         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 922         strlower_m(acct_name);
 923
 924         init_lsa_String(&lsa_acct_name, acct_name);
 925
 926         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 927                 uint32_t access_desired =
 928                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 929                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 930                         SAMR_USER_ACCESS_SET_PASSWORD |
 931                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 932                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 933                 uint32_t access_granted = 0;
 934
 935                 DEBUG(10,("Creating account with desired access mask: %d\n",
 936                         access_desired));
 937
 938                 status = dcerpc_samr_CreateUser2(b, mem_ctx,
 939                                                  &domain_pol,
 940                                                  &lsa_acct_name,
 941                                                  acct_flags,
 942                                                  access_desired,
 943                                                  &user_pol,
 944                                                  &access_granted,
 945                                                  &user_rid,
 946                                                  &result);
 947                 if (!NT_STATUS_IS_OK(status)) {
 948                         goto done;
 949                 }
 950
 951                 status = result;
 952                 if (!NT_STATUS_IS_OK(status) &&
 953                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 954
 955                         DEBUG(10,("Creation of workstation account failed: %s\n",
 956                                 nt_errstr(status)));
 957
 958                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 959                            username/password combo but the user does not have
 960                            administrator access. */
 961
 962                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 963                                 libnet_join_set_error_string(mem_ctx, r,
 964                                         "User specified does not have "
 965                                         "administrator privileges");
 966                         }
 967
 968                         goto done;
 969                 }
 970
 971                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 972                         if (!(r->in.join_flags &
 973                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 974                                 goto done;
 975                         }
 976                 }
 977
 978                 /* We *must* do this.... don't ask... */
 979
 980                 if (NT_STATUS_IS_OK(status)) {
 981                         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
 982                 }
 983         }
 984
 985         status = dcerpc_samr_LookupNames(b, mem_ctx,
 986                                          &domain_pol,
 987                                          1,
 988                                          &lsa_acct_name,
 989                                          &user_rids,
 990                                          &name_types,
 991                                          &result);
 992         if (!NT_STATUS_IS_OK(status)) {
 993                 goto done;
 994         }
 995         if (!NT_STATUS_IS_OK(result)) {
 996                 status = result;
 997                 goto done;
 998         }
 999
1000         if (name_types.ids[0] != SID_NAME_USER) {
1001                 DEBUG(0,("%s is not a user account (type=%d)\n",
1002                         acct_name, name_types.ids[0]));
1003                 status = NT_STATUS_INVALID_WORKSTATION;
1004                 goto done;
1005         }
1006
1007         user_rid = user_rids.ids[0];
1008
1009         /* Open handle on user */
1010
1011         status = dcerpc_samr_OpenUser(b, mem_ctx,
1012                                       &domain_pol,
1013                                       SEC_FLAG_MAXIMUM_ALLOWED,
1014                                       user_rid,
1015                                       &user_pol,
1016                                       &result);
1017         if (!NT_STATUS_IS_OK(status)) {
1018                 goto done;
1019         }
1020         if (!NT_STATUS_IS_OK(result)) {
1021                 status = result;
1022                 goto done;
1023         }
1024
1025         /* Fill in the additional account flags now */
1026
1027         acct_flags |= ACB_PWNOEXP;
1028
1029         /* Set account flags on machine account */
1030         ZERO_STRUCT(user_info.info16);
1031         user_info.info16.acct_flags = acct_flags;
1032
1033         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1034                                          &user_pol,
1035                                          16,
1036                                          &user_info,
1037                                          &result);
1038         if (!NT_STATUS_IS_OK(status)) {
1039                 dcerpc_samr_DeleteUser(b, mem_ctx,
1040                                        &user_pol,
1041                                        &result);
1042
1043                 libnet_join_set_error_string(mem_ctx, r,
1044                         "Failed to set account flags for machine account (%s)\n",
1045                         nt_errstr(status));
1046                 goto done;
1047         }
1048
1049         if (!NT_STATUS_IS_OK(result)) {
1050                 status = result;
1051
1052                 dcerpc_samr_DeleteUser(b, mem_ctx,
1053                                        &user_pol,
1054                                        &result);
1055
1056                 libnet_join_set_error_string(mem_ctx, r,
1057                         "Failed to set account flags for machine account (%s)\n",
1058                         nt_errstr(status));
1059                 goto done;
1060         }
1061
1062         /* Set password on machine account - first try level 26 */
1063
1064         init_samr_CryptPasswordEx(r->in.machine_password,
1065                                   &cli->user_session_key,
1066                                   &crypt_pwd_ex);
1067
1068         user_info.info26.password = crypt_pwd_ex;
1069         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1070
1071         status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1072                                           &user_pol,
1073                                           26,
1074                                           &user_info,
1075                                           &result);
1076
1077         if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1078
1079                 /* retry with level 24 */
1080
1081                 init_samr_CryptPassword(r->in.machine_password,
1082                                         &cli->user_session_key,
1083                                         &crypt_pwd);
1084
1085                 user_info.info24.password = crypt_pwd;
1086                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1087
1088                 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1089                                                   &user_pol,
1090                                                   24,
1091                                                   &user_info,
1092                                                   &result);
1093         }
1094
1095         if (!NT_STATUS_IS_OK(status)) {
1096
1097                 dcerpc_samr_DeleteUser(b, mem_ctx,
1098                                        &user_pol,
1099                                        &result);
1100
1101                 libnet_join_set_error_string(mem_ctx, r,
1102                         "Failed to set password for machine account (%s)\n",
1103                         nt_errstr(status));
1104                 goto done;
1105         }
1106         if (!NT_STATUS_IS_OK(result)) {
1107                 status = result;
1108
1109                 dcerpc_samr_DeleteUser(b, mem_ctx,
1110                                        &user_pol,
1111                                        &result);
1112
1113                 libnet_join_set_error_string(mem_ctx, r,
1114                         "Failed to set password for machine account (%s)\n",
1115                         nt_errstr(status));
1116                 goto done;
1117         }
1118
1119         status = NT_STATUS_OK;
1120
1121  done:
1122         if (!pipe_hnd) {
1123                 return status;
1124         }
1125
1126         if (is_valid_policy_hnd(&sam_pol)) {
1127                 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1128         }
1129         if (is_valid_policy_hnd(&domain_pol)) {
1130                 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1131         }
1132         if (is_valid_policy_hnd(&user_pol)) {
1133                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1134         }
1135         TALLOC_FREE(pipe_hnd);
1136
1137         return status;
1138 }
1139
1140 /****************************************************************
1141 ****************************************************************/
1142
1143 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1144                         const char *machine_name,
1145                         const char *dc_name)
1146 {
1147         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1148         struct cli_state *cli = NULL;
1149         struct rpc_pipe_client *pipe_hnd = NULL;
1150         struct rpc_pipe_client *netlogon_pipe = NULL;
1151         NTSTATUS status;
1152         char *machine_password = NULL;
1153         char *machine_account = NULL;
1154
1155         if (!dc_name) {
1156                 return NT_STATUS_INVALID_PARAMETER;
1157         }
1158
1159         if (!secrets_init()) {
1160                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1161         }
1162
1163         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1164                                                           NULL, NULL);
1165         if (!machine_password) {
1166                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1167         }
1168
1169         if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1170                 SAFE_FREE(machine_password);
1171                 return NT_STATUS_NO_MEMORY;
1172         }
1173
1174         status = cli_full_connection(&cli, NULL,
1175                                      dc_name,
1176                                      NULL, 0,
1177                                      "IPC$", "IPC",
1178                                      machine_account,
1179                                      NULL,
1180                                      machine_password,
1181                                      0,
1182                                      Undefined);
1183         free(machine_account);
1184         free(machine_password);
1185
1186         if (!NT_STATUS_IS_OK(status)) {
1187                 status = cli_full_connection(&cli, NULL,
1188                                              dc_name,
1189                                              NULL, 0,
1190                                              "IPC$", "IPC",
1191                                              "",
1192                                              NULL,
1193                                              "",
1194                                              0,
1195                                              Undefined);
1196         }
1197
1198         if (!NT_STATUS_IS_OK(status)) {
1199                 return status;
1200         }
1201
1202         status = get_schannel_session_key(cli, netbios_domain_name,
1203                                           &neg_flags, &netlogon_pipe);
1204         if (!NT_STATUS_IS_OK(status)) {
1205                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1206                         cli_shutdown(cli);
1207                         return NT_STATUS_OK;
1208                 }
1209
1210                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1211                         "key from server %s for domain %s. Error was %s\n",
1212                         cli_state_remote_name(cli),
1213                         netbios_domain_name, nt_errstr(status)));
1214                 cli_shutdown(cli);
1215                 return status;
1216         }
1217
1218         if (!lp_client_schannel()) {
1219                 cli_shutdown(cli);
1220                 return NT_STATUS_OK;
1221         }
1222
1223         status = cli_rpc_pipe_open_schannel_with_key(
1224                 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1225                 DCERPC_AUTH_LEVEL_PRIVACY,
1226                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1227
1228         cli_shutdown(cli);
1229
1230         if (!NT_STATUS_IS_OK(status)) {
1231                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1232                         "on netlogon pipe to server %s for domain %s. "
1233                         "Error was %s\n",
1234                         cli_state_remote_name(cli),
1235                         netbios_domain_name, nt_errstr(status)));
1236                 return status;
1237         }
1238
1239         return NT_STATUS_OK;
1240 }
1241
1242 /****************************************************************
1243 ****************************************************************/
1244
1245 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1246                                       struct libnet_JoinCtx *r)
1247 {
1248         NTSTATUS status;
1249
1250         status = libnet_join_ok(r->out.netbios_domain_name,
1251                                 r->in.machine_name,
1252                                 r->in.dc_name);
1253         if (!NT_STATUS_IS_OK(status)) {
1254                 libnet_join_set_error_string(mem_ctx, r,
1255                         "failed to verify domain membership after joining: %s",
1256                         get_friendly_nt_error_msg(status));
1257                 return WERR_SETUP_NOT_JOINED;
1258         }
1259
1260         return WERR_OK;
1261 }
1262
1263 /****************************************************************
1264 ****************************************************************/
1265
1266 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1267                                                     struct libnet_UnjoinCtx *r)
1268 {
1269         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1270                 return false;
1271         }
1272
1273         if (!secrets_delete_domain_sid(lp_workgroup())) {
1274                 return false;
1275         }
1276
1277         return true;
1278 }
1279
1280 /****************************************************************
1281 ****************************************************************/
1282
1283 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1284                                              struct libnet_UnjoinCtx *r)
1285 {
1286         struct cli_state *cli = NULL;
1287         struct rpc_pipe_client *pipe_hnd = NULL;
1288         struct policy_handle sam_pol, domain_pol, user_pol;
1289         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1290         char *acct_name;
1291         uint32_t user_rid;
1292         struct lsa_String lsa_acct_name;
1293         struct samr_Ids user_rids;
1294         struct samr_Ids name_types;
1295         union samr_UserInfo *info = NULL;
1296         struct dcerpc_binding_handle *b = NULL;
1297
1298         ZERO_STRUCT(sam_pol);
1299         ZERO_STRUCT(domain_pol);
1300         ZERO_STRUCT(user_pol);
1301
1302         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1303                                             r->in.admin_account,
1304                                             r->in.admin_password,
1305                                             r->in.use_kerberos,
1306                                             &cli);
1307         if (!NT_STATUS_IS_OK(status)) {
1308                 goto done;
1309         }
1310
1311         /* Open the domain */
1312
1313         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1314                                           &pipe_hnd);
1315         if (!NT_STATUS_IS_OK(status)) {
1316                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1317                         nt_errstr(status)));
1318                 goto done;
1319         }
1320
1321         b = pipe_hnd->binding_handle;
1322
1323         status = dcerpc_samr_Connect2(b, mem_ctx,
1324                                       pipe_hnd->desthost,
1325                                       SEC_FLAG_MAXIMUM_ALLOWED,
1326                                       &sam_pol,
1327                                       &result);
1328         if (!NT_STATUS_IS_OK(status)) {
1329                 goto done;
1330         }
1331         if (!NT_STATUS_IS_OK(result)) {
1332                 status = result;
1333                 goto done;
1334         }
1335
1336         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1337                                         &sam_pol,
1338                                         SEC_FLAG_MAXIMUM_ALLOWED,
1339                                         r->in.domain_sid,
1340                                         &domain_pol,
1341                                         &result);
1342         if (!NT_STATUS_IS_OK(status)) {
1343                 goto done;
1344         }
1345         if (!NT_STATUS_IS_OK(result)) {
1346                 status = result;
1347                 goto done;
1348         }
1349
1350         /* Create domain user */
1351
1352         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1353         strlower_m(acct_name);
1354
1355         init_lsa_String(&lsa_acct_name, acct_name);
1356
1357         status = dcerpc_samr_LookupNames(b, mem_ctx,
1358                                          &domain_pol,
1359                                          1,
1360                                          &lsa_acct_name,
1361                                          &user_rids,
1362                                          &name_types,
1363                                          &result);
1364
1365         if (!NT_STATUS_IS_OK(status)) {
1366                 goto done;
1367         }
1368         if (!NT_STATUS_IS_OK(result)) {
1369                 status = result;
1370                 goto done;
1371         }
1372
1373         if (name_types.ids[0] != SID_NAME_USER) {
1374                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1375                         name_types.ids[0]));
1376                 status = NT_STATUS_INVALID_WORKSTATION;
1377                 goto done;
1378         }
1379
1380         user_rid = user_rids.ids[0];
1381
1382         /* Open handle on user */
1383
1384         status = dcerpc_samr_OpenUser(b, mem_ctx,
1385                                       &domain_pol,
1386                                       SEC_FLAG_MAXIMUM_ALLOWED,
1387                                       user_rid,
1388                                       &user_pol,
1389                                       &result);
1390         if (!NT_STATUS_IS_OK(status)) {
1391                 goto done;
1392         }
1393         if (!NT_STATUS_IS_OK(result)) {
1394                 status = result;
1395                 goto done;
1396         }
1397
1398         /* Get user info */
1399
1400         status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1401                                            &user_pol,
1402                                            16,
1403                                            &info,
1404                                            &result);
1405         if (!NT_STATUS_IS_OK(status)) {
1406                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1407                 goto done;
1408         }
1409         if (!NT_STATUS_IS_OK(result)) {
1410                 status = result;
1411                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1412                 goto done;
1413         }
1414
1415         /* now disable and setuser info */
1416
1417         info->info16.acct_flags |= ACB_DISABLED;
1418
1419         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1420                                          &user_pol,
1421                                          16,
1422                                          info,
1423                                          &result);
1424         if (!NT_STATUS_IS_OK(status)) {
1425                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1426                 goto done;
1427         }
1428         if (!NT_STATUS_IS_OK(result)) {
1429                 status = result;
1430                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1431                 goto done;
1432         }
1433         status = result;
1434         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1435
1436 done:
1437         if (pipe_hnd && b) {
1438                 if (is_valid_policy_hnd(&domain_pol)) {
1439                         dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1440                 }
1441                 if (is_valid_policy_hnd(&sam_pol)) {
1442                         dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1443                 }
1444                 TALLOC_FREE(pipe_hnd);
1445         }
1446
1447         if (cli) {
1448                 cli_shutdown(cli);
1449         }
1450
1451         return status;
1452 }
1453
1454 /****************************************************************
1455 ****************************************************************/
1456
1457 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1458 {
1459         WERROR werr = WERR_OK;
1460         sbcErr err;
1461         struct smbconf_ctx *ctx;
1462
1463         err = smbconf_init_reg(r, &ctx, NULL);
1464         if (!SBC_ERROR_IS_OK(err)) {
1465                 werr = WERR_NO_SUCH_SERVICE;
1466                 goto done;
1467         }
1468
1469         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1470
1471                 err = smbconf_set_global_parameter(ctx, "security", "user");
1472                 if (!SBC_ERROR_IS_OK(err)) {
1473                         werr = WERR_NO_SUCH_SERVICE;
1474                         goto done;
1475                 }
1476
1477                 err = smbconf_set_global_parameter(ctx, "workgroup",
1478                                                    r->in.domain_name);
1479                 if (!SBC_ERROR_IS_OK(err)) {
1480                         werr = WERR_NO_SUCH_SERVICE;
1481                         goto done;
1482                 }
1483
1484                 smbconf_delete_global_parameter(ctx, "realm");
1485                 goto done;
1486         }
1487
1488         err = smbconf_set_global_parameter(ctx, "security", "domain");
1489         if (!SBC_ERROR_IS_OK(err)) {
1490                 werr = WERR_NO_SUCH_SERVICE;
1491                 goto done;
1492         }
1493
1494         err = smbconf_set_global_parameter(ctx, "workgroup",
1495                                            r->out.netbios_domain_name);
1496         if (!SBC_ERROR_IS_OK(err)) {
1497                 werr = WERR_NO_SUCH_SERVICE;
1498                 goto done;
1499         }
1500
1501         if (r->out.domain_is_ad) {
1502                 err = smbconf_set_global_parameter(ctx, "security", "ads");
1503                 if (!SBC_ERROR_IS_OK(err)) {
1504                         werr = WERR_NO_SUCH_SERVICE;
1505                         goto done;
1506                 }
1507
1508                 err = smbconf_set_global_parameter(ctx, "realm",
1509                                                    r->out.dns_domain_name);
1510                 if (!SBC_ERROR_IS_OK(err)) {
1511                         werr = WERR_NO_SUCH_SERVICE;
1512                         goto done;
1513                 }
1514         }
1515
1516  done:
1517         smbconf_shutdown(ctx);
1518         return werr;
1519 }
1520
1521 /****************************************************************
1522 ****************************************************************/
1523
1524 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1525 {
1526         WERROR werr = WERR_OK;
1527         sbcErr err;
1528         struct smbconf_ctx *ctx;
1529
1530         err = smbconf_init_reg(r, &ctx, NULL);
1531         if (!SBC_ERROR_IS_OK(err)) {
1532                 werr = WERR_NO_SUCH_SERVICE;
1533                 goto done;
1534         }
1535
1536         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1537
1538                 err = smbconf_set_global_parameter(ctx, "security", "user");
1539                 if (!SBC_ERROR_IS_OK(err)) {
1540                         werr = WERR_NO_SUCH_SERVICE;
1541                         goto done;
1542                 }
1543
1544                 err = smbconf_delete_global_parameter(ctx, "workgroup");
1545                 if (!SBC_ERROR_IS_OK(err)) {
1546                         werr = WERR_NO_SUCH_SERVICE;
1547                         goto done;
1548                 }
1549
1550                 smbconf_delete_global_parameter(ctx, "realm");
1551         }
1552
1553  done:
1554         smbconf_shutdown(ctx);
1555         return werr;
1556 }
1557
1558 /****************************************************************
1559 ****************************************************************/
1560
1561 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1562 {
1563         WERROR werr;
1564
1565         if (!W_ERROR_IS_OK(r->out.result)) {
1566                 return r->out.result;
1567         }
1568
1569         if (!r->in.modify_config) {
1570                 return WERR_OK;
1571         }
1572
1573         werr = do_join_modify_vals_config(r);
1574         if (!W_ERROR_IS_OK(werr)) {
1575                 return werr;
1576         }
1577
1578         lp_load_global(get_dyn_CONFIGFILE());
1579
1580         r->out.modified_config = true;
1581         r->out.result = werr;
1582
1583         return werr;
1584 }
1585
1586 /****************************************************************
1587 ****************************************************************/
1588
1589 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1590 {
1591         WERROR werr;
1592
1593         if (!W_ERROR_IS_OK(r->out.result)) {
1594                 return r->out.result;
1595         }
1596
1597         if (!r->in.modify_config) {
1598                 return WERR_OK;
1599         }
1600
1601         werr = do_unjoin_modify_vals_config(r);
1602         if (!W_ERROR_IS_OK(werr)) {
1603                 return werr;
1604         }
1605
1606         lp_load_global(get_dyn_CONFIGFILE());
1607
1608         r->out.modified_config = true;
1609         r->out.result = werr;
1610
1611         return werr;
1612 }
1613
1614 /****************************************************************
1615 ****************************************************************/
1616
1617 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1618                                    const char *domain_str,
1619                                    const char **domain_p,
1620                                    const char **dc_p)
1621 {
1622         char *domain = NULL;
1623         char *dc = NULL;
1624         const char *p = NULL;
1625
1626         if (!domain_str || !domain_p || !dc_p) {
1627                 return false;
1628         }
1629
1630         p = strchr_m(domain_str, '\\');
1631
1632         if (p != NULL) {
1633                 domain = talloc_strndup(mem_ctx, domain_str,
1634                                          PTR_DIFF(p, domain_str));
1635                 dc = talloc_strdup(mem_ctx, p+1);
1636                 if (!dc) {
1637                         return false;
1638                 }
1639         } else {
1640                 domain = talloc_strdup(mem_ctx, domain_str);
1641                 dc = NULL;
1642         }
1643         if (!domain) {
1644                 return false;
1645         }
1646
1647         *domain_p = domain;
1648
1649         if (!*dc_p && dc) {
1650                 *dc_p = dc;
1651         }
1652
1653         return true;
1654 }
1655
1656 /****************************************************************
1657 ****************************************************************/
1658
1659 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1660                                          struct libnet_JoinCtx *r)
1661 {
1662         if (!r->in.domain_name) {
1663                 libnet_join_set_error_string(mem_ctx, r,
1664                         "No domain name defined");
1665                 return WERR_INVALID_PARAM;
1666         }
1667
1668         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1669                                     &r->in.domain_name,
1670                                     &r->in.dc_name)) {
1671                 libnet_join_set_error_string(mem_ctx, r,
1672                         "Failed to parse domain name");
1673                 return WERR_INVALID_PARAM;
1674         }
1675
1676         if (IS_DC) {
1677                 return WERR_SETUP_DOMAIN_CONTROLLER;
1678         }
1679
1680         if (!secrets_init()) {
1681                 libnet_join_set_error_string(mem_ctx, r,
1682                         "Unable to open secrets database");
1683                 return WERR_CAN_NOT_COMPLETE;
1684         }
1685
1686         return WERR_OK;
1687 }
1688
1689 /****************************************************************
1690 ****************************************************************/
1691
1692 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1693 {
1694         NTSTATUS status;
1695
1696         /* Try adding dom admins to builtin\admins. Only log failures. */
1697         status = create_builtin_administrators(domain_sid);
1698         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1699                 DEBUG(10,("Unable to auto-add domain administrators to "
1700                           "BUILTIN\\Administrators during join because "
1701                           "winbindd must be running.\n"));
1702         } else if (!NT_STATUS_IS_OK(status)) {
1703                 DEBUG(5, ("Failed to auto-add domain administrators to "
1704                           "BUILTIN\\Administrators during join: %s\n",
1705                           nt_errstr(status)));
1706         }
1707
1708         /* Try adding dom users to builtin\users. Only log failures. */
1709         status = create_builtin_users(domain_sid);
1710         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1711                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1712                           "during join because winbindd must be running.\n"));
1713         } else if (!NT_STATUS_IS_OK(status)) {
1714                 DEBUG(5, ("Failed to auto-add domain administrators to "
1715                           "BUILTIN\\Administrators during join: %s\n",
1716                           nt_errstr(status)));
1717         }
1718 }
1719
1720 /****************************************************************
1721 ****************************************************************/
1722
1723 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1724                                           struct libnet_JoinCtx *r)
1725 {
1726         WERROR werr;
1727
1728         if (!W_ERROR_IS_OK(r->out.result)) {
1729                 return r->out.result;
1730         }
1731
1732         werr = do_JoinConfig(r);
1733         if (!W_ERROR_IS_OK(werr)) {
1734                 return werr;
1735         }
1736
1737         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1738                 return WERR_OK;
1739         }
1740
1741         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1742         if (r->out.dns_domain_name) {
1743                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1744         }
1745
1746 #ifdef HAVE_ADS
1747         if (r->out.domain_is_ad &&
1748             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1749                 ADS_STATUS ads_status;
1750
1751                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1752                 if (!ADS_ERR_OK(ads_status)) {
1753                         return WERR_GENERAL_FAILURE;
1754                 }
1755         }
1756 #endif /* HAVE_ADS */
1757
1758         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1759
1760         return WERR_OK;
1761 }
1762
1763 /****************************************************************
1764 ****************************************************************/
1765
1766 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1767 {
1768         if (r->in.ads) {
1769                 ads_destroy(&r->in.ads);
1770         }
1771
1772         return 0;
1773 }
1774
1775 /****************************************************************
1776 ****************************************************************/
1777
1778 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1779 {
1780         if (r->in.ads) {
1781                 ads_destroy(&r->in.ads);
1782         }
1783
1784         return 0;
1785 }
1786
1787 /****************************************************************
1788 ****************************************************************/
1789
1790 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1791                            struct libnet_JoinCtx **r)
1792 {
1793         struct libnet_JoinCtx *ctx;
1794
1795         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1796         if (!ctx) {
1797                 return WERR_NOMEM;
1798         }
1799
1800         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1801
1802         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1803         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1804
1805         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1806
1807         *r = ctx;
1808
1809         return WERR_OK;
1810 }
1811
1812 /****************************************************************
1813 ****************************************************************/
1814
1815 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1816                              struct libnet_UnjoinCtx **r)
1817 {
1818         struct libnet_UnjoinCtx *ctx;
1819
1820         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1821         if (!ctx) {
1822                 return WERR_NOMEM;
1823         }
1824
1825         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1826
1827         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1828         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1829
1830         *r = ctx;
1831
1832         return WERR_OK;
1833 }
1834
1835 /****************************************************************
1836 ****************************************************************/
1837
1838 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1839                                        struct libnet_JoinCtx *r)
1840 {
1841         bool valid_security = false;
1842         bool valid_workgroup = false;
1843         bool valid_realm = false;
1844
1845         /* check if configuration is already set correctly */
1846
1847         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1848
1849         switch (r->out.domain_is_ad) {
1850                 case false:
1851                         valid_security = (lp_security() == SEC_DOMAIN);
1852                         if (valid_workgroup && valid_security) {
1853                                 /* nothing to be done */
1854                                 return WERR_OK;
1855                         }
1856                         break;
1857                 case true:
1858                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1859                         switch (lp_security()) {
1860                         case SEC_DOMAIN:
1861                         case SEC_ADS:
1862                                 valid_security = true;
1863                         }
1864
1865                         if (valid_workgroup && valid_realm && valid_security) {
1866                                 /* nothing to be done */
1867                                 return WERR_OK;
1868                         }
1869                         break;
1870         }
1871
1872         /* check if we are supposed to manipulate configuration */
1873
1874         if (!r->in.modify_config) {
1875
1876                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1877
1878                 if (!valid_workgroup) {
1879                         wrong_conf = talloc_asprintf_append(wrong_conf,
1880                                 "\"workgroup\" set to '%s', should be '%s'",
1881                                 lp_workgroup(), r->out.netbios_domain_name);
1882                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1883                 }
1884
1885                 if (!valid_realm) {
1886                         wrong_conf = talloc_asprintf_append(wrong_conf,
1887                                 "\"realm\" set to '%s', should be '%s'",
1888                                 lp_realm(), r->out.dns_domain_name);
1889                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1890                 }
1891
1892                 if (!valid_security) {
1893                         const char *sec = NULL;
1894                         switch (lp_security()) {
1895                         case SEC_SHARE: sec = "share"; break;
1896                         case SEC_USER:  sec = "user"; break;
1897                         case SEC_DOMAIN: sec = "domain"; break;
1898                         case SEC_ADS: sec = "ads"; break;
1899                         }
1900                         wrong_conf = talloc_asprintf_append(wrong_conf,
1901                                 "\"security\" set to '%s', should be %s",
1902                                 sec, r->out.domain_is_ad ?
1903                                 "either 'domain' or 'ads'" : "'domain'");
1904                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1905                 }
1906
1907                 libnet_join_set_error_string(mem_ctx, r,
1908                         "Invalid configuration (%s) and configuration modification "
1909                         "was not requested", wrong_conf);
1910                 return WERR_CAN_NOT_COMPLETE;
1911         }
1912
1913         /* check if we are able to manipulate configuration */
1914
1915         if (!lp_config_backend_is_registry()) {
1916                 libnet_join_set_error_string(mem_ctx, r,
1917                         "Configuration manipulation requested but not "
1918                         "supported by backend");
1919                 return WERR_NOT_SUPPORTED;
1920         }
1921
1922         return WERR_OK;
1923 }
1924
1925 /****************************************************************
1926 ****************************************************************/
1927
1928 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1929                                 struct libnet_JoinCtx *r)
1930 {
1931         NTSTATUS status;
1932         WERROR werr;
1933         struct cli_state *cli = NULL;
1934 #ifdef HAVE_ADS
1935         ADS_STATUS ads_status;
1936 #endif /* HAVE_ADS */
1937
1938         if (!r->in.dc_name) {
1939                 struct netr_DsRGetDCNameInfo *info;
1940                 const char *dc;
1941                 status = dsgetdcname(mem_ctx,
1942                                      r->in.msg_ctx,
1943                                      r->in.domain_name,
1944                                      NULL,
1945                                      NULL,
1946                                      DS_FORCE_REDISCOVERY |
1947                                      DS_DIRECTORY_SERVICE_REQUIRED |
1948                                      DS_WRITABLE_REQUIRED |
1949                                      DS_RETURN_DNS_NAME,
1950                                      &info);
1951                 if (!NT_STATUS_IS_OK(status)) {
1952                         libnet_join_set_error_string(mem_ctx, r,
1953                                 "failed to find DC for domain %s",
1954                                 r->in.domain_name,
1955                                 get_friendly_nt_error_msg(status));
1956                         return WERR_DCNOTFOUND;
1957                 }
1958
1959                 dc = strip_hostname(info->dc_unc);
1960                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1961                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1962         }
1963
1964         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1965         if (!NT_STATUS_IS_OK(status)) {
1966                 libnet_join_set_error_string(mem_ctx, r,
1967                         "failed to lookup DC info for domain '%s' over rpc: %s",
1968                         r->in.domain_name, get_friendly_nt_error_msg(status));
1969                 return ntstatus_to_werror(status);
1970         }
1971
1972         werr = libnet_join_check_config(mem_ctx, r);
1973         if (!W_ERROR_IS_OK(werr)) {
1974                 goto done;
1975         }
1976
1977 #ifdef HAVE_ADS
1978
1979         create_local_private_krb5_conf_for_domain(
1980                 r->out.dns_domain_name, r->out.netbios_domain_name,
1981                 NULL, cli_state_remote_sockaddr(cli),
1982                 cli_state_remote_name(cli));
1983
1984         if (r->out.domain_is_ad && r->in.account_ou &&
1985             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1986
1987                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1988                 if (!ADS_ERR_OK(ads_status)) {
1989                         return WERR_DEFAULT_JOIN_REQUIRED;
1990                 }
1991
1992                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1993                 if (!ADS_ERR_OK(ads_status)) {
1994                         libnet_join_set_error_string(mem_ctx, r,
1995                                 "failed to precreate account in ou %s: %s",
1996                                 r->in.account_ou,
1997                                 ads_errstr(ads_status));
1998                         return WERR_DEFAULT_JOIN_REQUIRED;
1999                 }
2000
2001                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2002         }
2003 #endif /* HAVE_ADS */
2004
2005         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2006             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2007                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2008         } else {
2009                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2010         }
2011         if (!NT_STATUS_IS_OK(status)) {
2012                 libnet_join_set_error_string(mem_ctx, r,
2013                         "failed to join domain '%s' over rpc: %s",
2014                         r->in.domain_name, get_friendly_nt_error_msg(status));
2015                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2016                         return WERR_SETUP_ALREADY_JOINED;
2017                 }
2018                 werr = ntstatus_to_werror(status);
2019                 goto done;
2020         }
2021
2022         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2023                 werr = WERR_SETUP_NOT_JOINED;
2024                 goto done;
2025         }
2026
2027         werr = WERR_OK;
2028
2029  done:
2030         if (cli) {
2031                 cli_shutdown(cli);
2032         }
2033
2034         return werr;
2035 }
2036
2037 /****************************************************************
2038 ****************************************************************/
2039
2040 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2041                                    struct libnet_JoinCtx *r)
2042 {
2043         WERROR werr;
2044         struct libnet_UnjoinCtx *u = NULL;
2045
2046         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2047         if (!W_ERROR_IS_OK(werr)) {
2048                 return werr;
2049         }
2050
2051         u->in.debug             = r->in.debug;
2052         u->in.dc_name           = r->in.dc_name;
2053         u->in.domain_name       = r->in.domain_name;
2054         u->in.admin_account     = r->in.admin_account;
2055         u->in.admin_password    = r->in.admin_password;
2056         u->in.modify_config     = r->in.modify_config;
2057         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2058                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2059
2060         werr = libnet_Unjoin(mem_ctx, u);
2061         TALLOC_FREE(u);
2062
2063         return werr;
2064 }
2065
2066 /****************************************************************
2067 ****************************************************************/
2068
2069 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2070                    struct libnet_JoinCtx *r)
2071 {
2072         WERROR werr;
2073
2074         if (r->in.debug) {
2075                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2076         }
2077
2078         ZERO_STRUCT(r->out);
2079
2080         werr = libnet_join_pre_processing(mem_ctx, r);
2081         if (!W_ERROR_IS_OK(werr)) {
2082                 goto done;
2083         }
2084
2085         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2086                 werr = libnet_DomainJoin(mem_ctx, r);
2087                 if (!W_ERROR_IS_OK(werr)) {
2088                         goto done;
2089                 }
2090         }
2091
2092         werr = libnet_join_post_processing(mem_ctx, r);
2093         if (!W_ERROR_IS_OK(werr)) {
2094                 goto done;
2095         }
2096
2097         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2098                 werr = libnet_join_post_verify(mem_ctx, r);
2099                 if (!W_ERROR_IS_OK(werr)) {
2100                         libnet_join_rollback(mem_ctx, r);
2101                 }
2102         }
2103
2104  done:
2105         r->out.result = werr;
2106
2107         if (r->in.debug) {
2108                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2109         }
2110         return werr;
2111 }
2112
2113 /****************************************************************
2114 ****************************************************************/
2115
2116 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2117                                   struct libnet_UnjoinCtx *r)
2118 {
2119         NTSTATUS status;
2120
2121         if (!r->in.domain_sid) {
2122                 struct dom_sid sid;
2123                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2124                         libnet_unjoin_set_error_string(mem_ctx, r,
2125                                 "Unable to fetch domain sid: are we joined?");
2126                         return WERR_SETUP_NOT_JOINED;
2127                 }
2128                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2129                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2130         }
2131
2132         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2133             !r->in.delete_machine_account) {
2134                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2135                 return WERR_OK;
2136         }
2137
2138         if (!r->in.dc_name) {
2139                 struct netr_DsRGetDCNameInfo *info;
2140                 const char *dc;
2141                 status = dsgetdcname(mem_ctx,
2142                                      r->in.msg_ctx,
2143                                      r->in.domain_name,
2144                                      NULL,
2145                                      NULL,
2146                                      DS_DIRECTORY_SERVICE_REQUIRED |
2147                                      DS_WRITABLE_REQUIRED |
2148                                      DS_RETURN_DNS_NAME,
2149                                      &info);
2150                 if (!NT_STATUS_IS_OK(status)) {
2151                         libnet_unjoin_set_error_string(mem_ctx, r,
2152                                 "failed to find DC for domain %s",
2153                                 r->in.domain_name,
2154                                 get_friendly_nt_error_msg(status));
2155                         return WERR_DCNOTFOUND;
2156                 }
2157
2158                 dc = strip_hostname(info->dc_unc);
2159                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2160                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2161         }
2162
2163 #ifdef HAVE_ADS
2164         /* for net ads leave, try to delete the account.  If it works,
2165            no sense in disabling.  If it fails, we can still try to
2166            disable it. jmcd */
2167
2168         if (r->in.delete_machine_account) {
2169                 ADS_STATUS ads_status;
2170                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2171                 if (ADS_ERR_OK(ads_status)) {
2172                         /* dirty hack */
2173                         r->out.dns_domain_name =
2174                                 talloc_strdup(mem_ctx,
2175                                               r->in.ads->server.realm);
2176                         ads_status =
2177                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2178                 }
2179                 if (!ADS_ERR_OK(ads_status)) {
2180                         libnet_unjoin_set_error_string(mem_ctx, r,
2181                                 "failed to remove machine account from AD: %s",
2182                                 ads_errstr(ads_status));
2183                 } else {
2184                         r->out.deleted_machine_account = true;
2185                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2186                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2187                         return WERR_OK;
2188                 }
2189         }
2190 #endif /* HAVE_ADS */
2191
2192         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2193            "disable".  */
2194         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2195                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2196                 if (!NT_STATUS_IS_OK(status)) {
2197                         libnet_unjoin_set_error_string(mem_ctx, r,
2198                                 "failed to disable machine account via rpc: %s",
2199                                 get_friendly_nt_error_msg(status));
2200                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2201                                 return WERR_SETUP_NOT_JOINED;
2202                         }
2203                         return ntstatus_to_werror(status);
2204                 }
2205
2206                 r->out.disabled_machine_account = true;
2207         }
2208
2209         /* If disable succeeded or was not requested at all, we
2210            should be getting rid of our end of things */
2211
2212         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2213
2214         return WERR_OK;
2215 }
2216
2217 /****************************************************************
2218 ****************************************************************/
2219
2220 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2221                                            struct libnet_UnjoinCtx *r)
2222 {
2223         if (!r->in.domain_name) {
2224                 libnet_unjoin_set_error_string(mem_ctx, r,
2225                         "No domain name defined");
2226                 return WERR_INVALID_PARAM;
2227         }
2228
2229         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2230                                     &r->in.domain_name,
2231                                     &r->in.dc_name)) {
2232                 libnet_unjoin_set_error_string(mem_ctx, r,
2233                         "Failed to parse domain name");
2234                 return WERR_INVALID_PARAM;
2235         }
2236
2237         if (IS_DC) {
2238                 return WERR_SETUP_DOMAIN_CONTROLLER;
2239         }
2240
2241         if (!secrets_init()) {
2242                 libnet_unjoin_set_error_string(mem_ctx, r,
2243                         "Unable to open secrets database");
2244                 return WERR_CAN_NOT_COMPLETE;
2245         }
2246
2247         return WERR_OK;
2248 }
2249
2250 /****************************************************************
2251 ****************************************************************/
2252
2253 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2254                                             struct libnet_UnjoinCtx *r)
2255 {
2256         saf_delete(r->out.netbios_domain_name);
2257         saf_delete(r->out.dns_domain_name);
2258
2259         return libnet_unjoin_config(r);
2260 }
2261
2262 /****************************************************************
2263 ****************************************************************/
2264
2265 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2266                      struct libnet_UnjoinCtx *r)
2267 {
2268         WERROR werr;
2269
2270         if (r->in.debug) {
2271                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2272         }
2273
2274         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2275         if (!W_ERROR_IS_OK(werr)) {
2276                 goto done;
2277         }
2278
2279         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2280                 werr = libnet_DomainUnjoin(mem_ctx, r);
2281                 if (!W_ERROR_IS_OK(werr)) {
2282                         libnet_unjoin_config(r);
2283                         goto done;
2284                 }
2285         }
2286
2287         werr = libnet_unjoin_post_processing(mem_ctx, r);
2288         if (!W_ERROR_IS_OK(werr)) {
2289                 goto done;
2290         }
2291
2292  done:
2293         r->out.result = werr;
2294
2295         if (r->in.debug) {
2296                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2297         }
2298
2299         return werr;
2300 }