source3/libnet/libnet_join.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  libnet Join Support
   4  *  Copyright (C) Gerald (Jerry) Carter 2006
   5  *  Copyright (C) Guenther Deschner 2007-2008
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22 #include "libnet/libnet.h"
  23
  24 /****************************************************************
  25 ****************************************************************/
  26
  27 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  28         do { \
  29                 char *str = NULL; \
  30                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  31                 DEBUG(1,("libnet_Join:\n%s", str)); \
  32                 talloc_free(str); \
  33         } while (0)
  34
  35 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  36         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  37 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  38         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  39
  40 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  41         do { \
  42                 char *str = NULL; \
  43                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  44                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  45                 talloc_free(str); \
  46         } while (0)
  47
  48 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  49         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  50 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  51         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  52
  53 #define W_ERROR_NOT_OK_GOTO_DONE(x) do { \
  54         if (!W_ERROR_IS_OK(x)) {\
  55                 goto done;\
  56         }\
  57 } while (0)
  58
  59 /****************************************************************
  60 ****************************************************************/
  61
  62 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  63                                          struct libnet_JoinCtx *r,
  64                                          const char *format, ...)
  65 {
  66         va_list args;
  67
  68         if (r->out.error_string) {
  69                 return;
  70         }
  71
  72         va_start(args, format);
  73         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  74         va_end(args);
  75 }
  76
  77 /****************************************************************
  78 ****************************************************************/
  79
  80 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  81                                            struct libnet_UnjoinCtx *r,
  82                                            const char *format, ...)
  83 {
  84         va_list args;
  85
  86         if (r->out.error_string) {
  87                 return;
  88         }
  89
  90         va_start(args, format);
  91         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  92         va_end(args);
  93 }
  94
  95 #ifdef WITH_ADS
  96
  97 /****************************************************************
  98 ****************************************************************/
  99
 100 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 101                                      const char *netbios_domain_name,
 102                                      const char *dc_name,
 103                                      const char *user_name,
 104                                      const char *password,
 105                                      ADS_STRUCT **ads)
 106 {
 107         ADS_STATUS status;
 108         ADS_STRUCT *my_ads = NULL;
 109
 110         my_ads = ads_init(dns_domain_name,
 111                           netbios_domain_name,
 112                           dc_name);
 113         if (!my_ads) {
 114                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 115         }
 116
 117         if (user_name) {
 118                 SAFE_FREE(my_ads->auth.user_name);
 119                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 120         }
 121
 122         if (password) {
 123                 SAFE_FREE(my_ads->auth.password);
 124                 my_ads->auth.password = SMB_STRDUP(password);
 125         }
 126
 127         status = ads_connect(my_ads);
 128         if (!ADS_ERR_OK(status)) {
 129                 ads_destroy(&my_ads);
 130                 return status;
 131         }
 132
 133         *ads = my_ads;
 134         return ADS_SUCCESS;
 135 }
 136
 137 /****************************************************************
 138 ****************************************************************/
 139
 140 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 141                                           struct libnet_JoinCtx *r)
 142 {
 143         ADS_STATUS status;
 144
 145         status = libnet_connect_ads(r->in.domain_name,
 146                                     r->in.domain_name,
 147                                     r->in.dc_name,
 148                                     r->in.admin_account,
 149                                     r->in.admin_password,
 150                                     &r->in.ads);
 151         if (!ADS_ERR_OK(status)) {
 152                 libnet_join_set_error_string(mem_ctx, r,
 153                         "failed to connect to AD: %s",
 154                         ads_errstr(status));
 155                 return status;
 156         }
 157
 158         if (!r->out.netbios_domain_name) {
 159                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 160                                                            r->in.ads->server.workgroup);
 161                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 162         }
 163
 164         if (!r->out.dns_domain_name) {
 165                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 166                                                        r->in.ads->config.realm);
 167                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 168         }
 169
 170         r->out.domain_is_ad = true;
 171
 172         return ADS_SUCCESS;
 173 }
 174
 175 /****************************************************************
 176 ****************************************************************/
 177
 178 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 179                                             struct libnet_UnjoinCtx *r)
 180 {
 181         ADS_STATUS status;
 182
 183         status = libnet_connect_ads(r->in.domain_name,
 184                                     r->in.domain_name,
 185                                     r->in.dc_name,
 186                                     r->in.admin_account,
 187                                     r->in.admin_password,
 188                                     &r->in.ads);
 189         if (!ADS_ERR_OK(status)) {
 190                 libnet_unjoin_set_error_string(mem_ctx, r,
 191                         "failed to connect to AD: %s",
 192                         ads_errstr(status));
 193         }
 194
 195         return status;
 196 }
 197
 198 /****************************************************************
 199  join a domain using ADS (LDAP mods)
 200 ****************************************************************/
 201
 202 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 203                                                      struct libnet_JoinCtx *r)
 204 {
 205         ADS_STATUS status;
 206         LDAPMessage *res = NULL;
 207         const char *attrs[] = { "dn", NULL };
 208         bool moved = false;
 209
 210         status = ads_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                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 268                 if (!ADS_ERR_OK(status)) {
 269                         return status;
 270                 }
 271         }
 272
 273         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 274         if (!ADS_ERR_OK(status)) {
 275                 libnet_unjoin_set_error_string(mem_ctx, r,
 276                         "failed to leave realm: %s",
 277                         ads_errstr(status));
 278                 return status;
 279         }
 280
 281         return ADS_SUCCESS;
 282 }
 283
 284 /****************************************************************
 285 ****************************************************************/
 286
 287 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 288                                                 struct libnet_JoinCtx *r)
 289 {
 290         ADS_STATUS status;
 291         LDAPMessage *res = NULL;
 292         char *dn = NULL;
 293
 294         if (!r->in.machine_name) {
 295                 return ADS_ERROR(LDAP_NO_MEMORY);
 296         }
 297
 298         status = ads_find_machine_acct(r->in.ads,
 299                                        &res,
 300                                        r->in.machine_name);
 301         if (!ADS_ERR_OK(status)) {
 302                 return status;
 303         }
 304
 305         if (ads_count_replies(r->in.ads, res) != 1) {
 306                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 307                 goto done;
 308         }
 309
 310         dn = ads_get_dn(r->in.ads, res);
 311         if (!dn) {
 312                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 313                 goto done;
 314         }
 315
 316         r->out.dn = talloc_strdup(mem_ctx, dn);
 317         if (!r->out.dn) {
 318                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 319                 goto done;
 320         }
 321
 322  done:
 323         ads_msgfree(r->in.ads, res);
 324         ads_memfree(r->in.ads, dn);
 325
 326         return status;
 327 }
 328
 329 /****************************************************************
 330  Set a machines dNSHostName and servicePrincipalName attributes
 331 ****************************************************************/
 332
 333 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 334                                               struct libnet_JoinCtx *r)
 335 {
 336         ADS_STATUS status;
 337         ADS_MODLIST mods;
 338         fstring my_fqdn;
 339         const char *spn_array[3] = {NULL, NULL, NULL};
 340         char *spn = NULL;
 341
 342         /* Find our DN */
 343
 344         status = libnet_join_find_machine_acct(mem_ctx, r);
 345         if (!ADS_ERR_OK(status)) {
 346                 return status;
 347         }
 348
 349         /* Windows only creates HOST/shortname & HOST/fqdn. */
 350
 351         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 352         if (!spn) {
 353                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 354         }
 355         strupper_m(spn);
 356         spn_array[0] = spn;
 357
 358         if (name_to_fqdn(my_fqdn, r->in.machine_name) &&
 359             !strequal(my_fqdn, r->in.machine_name)) {
 360
 361                 strlower_m(my_fqdn);
 362                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 363                 if (!spn) {
 364                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 365                 }
 366                 spn_array[1] = spn;
 367         }
 368
 369         mods = ads_init_mods(mem_ctx);
 370         if (!mods) {
 371                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 372         }
 373
 374         /* fields of primary importance */
 375
 376         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 377         if (!ADS_ERR_OK(status)) {
 378                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 379         }
 380
 381         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 382                                  spn_array);
 383         if (!ADS_ERR_OK(status)) {
 384                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 385         }
 386
 387         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 388 }
 389
 390 /****************************************************************
 391 ****************************************************************/
 392
 393 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 394                                               struct libnet_JoinCtx *r)
 395 {
 396         ADS_STATUS status;
 397         ADS_MODLIST mods;
 398
 399         if (!r->in.create_upn) {
 400                 return ADS_SUCCESS;
 401         }
 402
 403         /* Find our DN */
 404
 405         status = libnet_join_find_machine_acct(mem_ctx, r);
 406         if (!ADS_ERR_OK(status)) {
 407                 return status;
 408         }
 409
 410         if (!r->in.upn) {
 411                 r->in.upn = talloc_asprintf(mem_ctx,
 412                                             "host/%s@%s",
 413                                             r->in.machine_name,
 414                                             r->out.dns_domain_name);
 415                 if (!r->in.upn) {
 416                         return ADS_ERROR(LDAP_NO_MEMORY);
 417                 }
 418         }
 419
 420         /* now do the mods */
 421
 422         mods = ads_init_mods(mem_ctx);
 423         if (!mods) {
 424                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 425         }
 426
 427         /* fields of primary importance */
 428
 429         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 430         if (!ADS_ERR_OK(status)) {
 431                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 432         }
 433
 434         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 435 }
 436
 437
 438 /****************************************************************
 439 ****************************************************************/
 440
 441 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 442                                                 struct libnet_JoinCtx *r)
 443 {
 444         ADS_STATUS status;
 445         ADS_MODLIST mods;
 446         char *os_sp = NULL;
 447
 448         if (!r->in.os_name || !r->in.os_version ) {
 449                 return ADS_SUCCESS;
 450         }
 451
 452         /* Find our DN */
 453
 454         status = libnet_join_find_machine_acct(mem_ctx, r);
 455         if (!ADS_ERR_OK(status)) {
 456                 return status;
 457         }
 458
 459         /* now do the mods */
 460
 461         mods = ads_init_mods(mem_ctx);
 462         if (!mods) {
 463                 return ADS_ERROR(LDAP_NO_MEMORY);
 464         }
 465
 466         os_sp = talloc_asprintf(mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
 467         if (!os_sp) {
 468                 return ADS_ERROR(LDAP_NO_MEMORY);
 469         }
 470
 471         /* fields of primary importance */
 472
 473         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 474                              r->in.os_name);
 475         if (!ADS_ERR_OK(status)) {
 476                 return status;
 477         }
 478
 479         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 480                              r->in.os_version);
 481         if (!ADS_ERR_OK(status)) {
 482                 return status;
 483         }
 484
 485         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 486                              os_sp);
 487         if (!ADS_ERR_OK(status)) {
 488                 return status;
 489         }
 490
 491         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 492 }
 493
 494 /****************************************************************
 495 ****************************************************************/
 496
 497 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 498                                       struct libnet_JoinCtx *r)
 499 {
 500         if (!lp_use_kerberos_keytab()) {
 501                 return true;
 502         }
 503
 504         if (!ads_keytab_create_default(r->in.ads)) {
 505                 return false;
 506         }
 507
 508         return true;
 509 }
 510
 511 /****************************************************************
 512 ****************************************************************/
 513
 514 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 515                                                  struct libnet_JoinCtx *r)
 516 {
 517         uint32_t domain_func;
 518         ADS_STATUS status;
 519         const char *salt = NULL;
 520         char *std_salt = NULL;
 521
 522         status = ads_domain_func_level(r->in.ads, &domain_func);
 523         if (!ADS_ERR_OK(status)) {
 524                 libnet_join_set_error_string(mem_ctx, r,
 525                         "failed to determine domain functional level: %s",
 526                         ads_errstr(status));
 527                 return false;
 528         }
 529
 530         /* go ahead and setup the default salt */
 531
 532         std_salt = kerberos_standard_des_salt();
 533         if (!std_salt) {
 534                 libnet_join_set_error_string(mem_ctx, r,
 535                         "failed to obtain standard DES salt");
 536                 return false;
 537         }
 538
 539         salt = talloc_strdup(mem_ctx, std_salt);
 540         if (!salt) {
 541                 return false;
 542         }
 543
 544         SAFE_FREE(std_salt);
 545
 546         /* if it's a Windows functional domain, we have to look for the UPN */
 547
 548         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 549                 char *upn;
 550
 551                 upn = ads_get_upn(r->in.ads, mem_ctx,
 552                                   r->in.machine_name);
 553                 if (upn) {
 554                         salt = talloc_strdup(mem_ctx, upn);
 555                         if (!salt) {
 556                                 return false;
 557                         }
 558                 }
 559         }
 560
 561         return kerberos_secrets_store_des_salt(salt);
 562 }
 563
 564 /****************************************************************
 565 ****************************************************************/
 566
 567 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 568                                                   struct libnet_JoinCtx *r)
 569 {
 570         ADS_STATUS status;
 571
 572         if (!r->in.ads) {
 573                 status = libnet_join_connect_ads(mem_ctx, r);
 574                 if (!ADS_ERR_OK(status)) {
 575                         return status;
 576                 }
 577         }
 578
 579         status = libnet_join_set_machine_spn(mem_ctx, r);
 580         if (!ADS_ERR_OK(status)) {
 581                 libnet_join_set_error_string(mem_ctx, r,
 582                         "failed to set machine spn: %s",
 583                         ads_errstr(status));
 584                 return status;
 585         }
 586
 587         status = libnet_join_set_os_attributes(mem_ctx, r);
 588         if (!ADS_ERR_OK(status)) {
 589                 libnet_join_set_error_string(mem_ctx, r,
 590                         "failed to set machine os attributes: %s",
 591                         ads_errstr(status));
 592                 return status;
 593         }
 594
 595         status = libnet_join_set_machine_upn(mem_ctx, r);
 596         if (!ADS_ERR_OK(status)) {
 597                 libnet_join_set_error_string(mem_ctx, r,
 598                         "failed to set machine upn: %s",
 599                         ads_errstr(status));
 600                 return status;
 601         }
 602
 603         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 604                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 605         }
 606
 607         if (!libnet_join_create_keytab(mem_ctx, r)) {
 608                 libnet_join_set_error_string(mem_ctx, r,
 609                         "failed to create kerberos keytab");
 610                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 611         }
 612
 613         return ADS_SUCCESS;
 614 }
 615 #endif /* WITH_ADS */
 616
 617 /****************************************************************
 618  Store the machine password and domain SID
 619 ****************************************************************/
 620
 621 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 622                                                  struct libnet_JoinCtx *r)
 623 {
 624         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 625                                       r->out.domain_sid))
 626         {
 627                 DEBUG(1,("Failed to save domain sid\n"));
 628                 return false;
 629         }
 630
 631         if (!secrets_store_machine_password(r->in.machine_password,
 632                                             r->out.netbios_domain_name,
 633                                             SEC_CHAN_WKSTA))
 634         {
 635                 DEBUG(1,("Failed to save machine password\n"));
 636                 return false;
 637         }
 638
 639         return true;
 640 }
 641
 642 /****************************************************************
 643  Do the domain join
 644 ****************************************************************/
 645
 646 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 647                                            struct libnet_JoinCtx *r)
 648 {
 649         struct cli_state *cli = NULL;
 650         struct rpc_pipe_client *pipe_hnd = NULL;
 651         POLICY_HND sam_pol, domain_pol, user_pol, lsa_pol;
 652         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 653         char *acct_name;
 654         struct lsa_String lsa_acct_name;
 655         uint32_t user_rid;
 656         uint32_t acct_flags = ACB_WSTRUST;
 657         uchar pwbuf[532];
 658         struct MD5Context md5ctx;
 659         uchar md5buffer[16];
 660         DATA_BLOB digested_session_key;
 661         uchar md4_trust_password[16];
 662         union lsa_PolicyInformation *info = NULL;
 663         struct samr_Ids user_rids;
 664         struct samr_Ids name_types;
 665         union samr_UserInfo user_info;
 666
 667         if (!r->in.machine_password) {
 668                 r->in.machine_password = talloc_strdup(mem_ctx, generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH));
 669                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 670         }
 671
 672         status = cli_full_connection(&cli, NULL,
 673                                      r->in.dc_name,
 674                                      NULL, 0,
 675                                      "IPC$", "IPC",
 676                                      r->in.admin_account,
 677                                      NULL,
 678                                      r->in.admin_password,
 679                                      0,
 680                                      Undefined, NULL);
 681
 682         if (!NT_STATUS_IS_OK(status)) {
 683                 goto done;
 684         }
 685
 686         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
 687         if (!pipe_hnd) {
 688                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 689                         nt_errstr(status)));
 690                 goto done;
 691         }
 692
 693         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 694                                         SEC_RIGHTS_MAXIMUM_ALLOWED, &lsa_pol);
 695         if (!NT_STATUS_IS_OK(status)) {
 696                 goto done;
 697         }
 698
 699         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
 700                                              &lsa_pol,
 701                                              LSA_POLICY_INFO_DNS,
 702                                              &info);
 703         if (NT_STATUS_IS_OK(status)) {
 704                 r->out.domain_is_ad = true;
 705                 r->out.netbios_domain_name = info->dns.name.string;
 706                 r->out.dns_domain_name = info->dns.dns_domain.string;
 707                 r->out.domain_sid = info->dns.sid;
 708         }
 709
 710         if (!NT_STATUS_IS_OK(status)) {
 711                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
 712                                                     &lsa_pol,
 713                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 714                                                     &info);
 715                 if (!NT_STATUS_IS_OK(status)) {
 716                         goto done;
 717                 }
 718
 719                 r->out.netbios_domain_name = info->account_domain.name.string;
 720                 r->out.domain_sid = info->account_domain.sid;
 721         }
 722
 723         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
 724         cli_rpc_pipe_close(pipe_hnd);
 725
 726         /* Open the domain */
 727
 728         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
 729         if (!pipe_hnd) {
 730                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 731                         nt_errstr(status)));
 732                 goto done;
 733         }
 734
 735         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
 736                                       pipe_hnd->cli->desthost,
 737                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 738                                       &sam_pol);
 739         if (!NT_STATUS_IS_OK(status)) {
 740                 goto done;
 741         }
 742
 743         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
 744                                         &sam_pol,
 745                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
 746                                         r->out.domain_sid,
 747                                         &domain_pol);
 748         if (!NT_STATUS_IS_OK(status)) {
 749                 goto done;
 750         }
 751
 752         /* Create domain user */
 753
 754         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 755         strlower_m(acct_name);
 756
 757         init_lsa_String(&lsa_acct_name, acct_name);
 758
 759         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 760                 uint32_t access_desired =
 761                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 762                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 763                         SAMR_USER_ACCESS_SET_PASSWORD |
 764                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 765                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 766                 uint32_t access_granted = 0;
 767
 768                 /* Don't try to set any acct_flags flags other than ACB_WSTRUST */
 769
 770                 DEBUG(10,("Creating account with desired access mask: %d\n",
 771                         access_desired));
 772
 773                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
 774                                                  &domain_pol,
 775                                                  &lsa_acct_name,
 776                                                  ACB_WSTRUST,
 777                                                  access_desired,
 778                                                  &user_pol,
 779                                                  &access_granted,
 780                                                  &user_rid);
 781                 if (!NT_STATUS_IS_OK(status) &&
 782                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 783
 784                         DEBUG(10,("Creation of workstation account failed: %s\n",
 785                                 nt_errstr(status)));
 786
 787                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 788                            username/password combo but the user does not have
 789                            administrator access. */
 790
 791                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 792                                 libnet_join_set_error_string(mem_ctx, r,
 793                                         "User specified does not have "
 794                                         "administrator privileges");
 795                         }
 796
 797                         return status;
 798                 }
 799
 800                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 801                         if (!(r->in.join_flags &
 802                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 803                                 goto done;
 804                         }
 805                 }
 806
 807                 /* We *must* do this.... don't ask... */
 808
 809                 if (NT_STATUS_IS_OK(status)) {
 810                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 811                 }
 812         }
 813
 814         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
 815                                          &domain_pol,
 816                                          1,
 817                                          &lsa_acct_name,
 818                                          &user_rids,
 819                                          &name_types);
 820         if (!NT_STATUS_IS_OK(status)) {
 821                 goto done;
 822         }
 823
 824         if (name_types.ids[0] != SID_NAME_USER) {
 825                 DEBUG(0,("%s is not a user account (type=%d)\n",
 826                         acct_name, name_types.ids[0]));
 827                 status = NT_STATUS_INVALID_WORKSTATION;
 828                 goto done;
 829         }
 830
 831         user_rid = user_rids.ids[0];
 832
 833         /* Open handle on user */
 834
 835         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
 836                                       &domain_pol,
 837                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 838                                       user_rid,
 839                                       &user_pol);
 840         if (!NT_STATUS_IS_OK(status)) {
 841                 goto done;
 842         }
 843
 844         /* Create a random machine account password and generate the hash */
 845
 846         E_md4hash(r->in.machine_password, md4_trust_password);
 847         encode_pw_buffer(pwbuf, r->in.machine_password, STR_UNICODE);
 848
 849         generate_random_buffer((uint8_t*)md5buffer, sizeof(md5buffer));
 850         digested_session_key = data_blob_talloc(mem_ctx, 0, 16);
 851
 852         MD5Init(&md5ctx);
 853         MD5Update(&md5ctx, md5buffer, sizeof(md5buffer));
 854         MD5Update(&md5ctx, cli->user_session_key.data,
 855                   cli->user_session_key.length);
 856         MD5Final(digested_session_key.data, &md5ctx);
 857
 858         SamOEMhashBlob(pwbuf, sizeof(pwbuf), &digested_session_key);
 859         memcpy(&pwbuf[516], md5buffer, sizeof(md5buffer));
 860
 861         /* Fill in the additional account flags now */
 862
 863         acct_flags |= ACB_PWNOEXP;
 864         if (r->out.domain_is_ad) {
 865 #if !defined(ENCTYPE_ARCFOUR_HMAC)
 866                 acct_flags |= ACB_USE_DES_KEY_ONLY;
 867 #endif
 868                 ;;
 869         }
 870
 871         /* Set password and account flags on machine account */
 872
 873         ZERO_STRUCT(user_info.info25);
 874
 875         user_info.info25.info.fields_present = ACCT_NT_PWD_SET |
 876                                                ACCT_LM_PWD_SET |
 877                                                SAMR_FIELD_ACCT_FLAGS;
 878
 879         user_info.info25.info.acct_flags = acct_flags;
 880         memcpy(&user_info.info25.password.data, pwbuf, sizeof(pwbuf));
 881
 882         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
 883                                          &user_pol,
 884                                          25,
 885                                          &user_info);
 886
 887         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
 888
 889                 uchar pwbuf2[516];
 890
 891                 encode_pw_buffer(pwbuf2, r->in.machine_password, STR_UNICODE);
 892
 893                 /* retry with level 24 */
 894                 init_samr_user_info24(&user_info.info24, pwbuf2, 24);
 895
 896                 SamOEMhashBlob(user_info.info24.password.data, 516,
 897                                &cli->user_session_key);
 898
 899                 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
 900                                                   &user_pol,
 901                                                   24,
 902                                                   &user_info);
 903         }
 904
 905         if (!NT_STATUS_IS_OK(status)) {
 906                 libnet_join_set_error_string(mem_ctx, r,
 907                         "Failed to set password for machine account (%s)\n",
 908                         nt_errstr(status));
 909                 goto done;
 910         }
 911
 912         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 913         cli_rpc_pipe_close(pipe_hnd);
 914
 915         status = NT_STATUS_OK;
 916  done:
 917         if (cli) {
 918                 cli_shutdown(cli);
 919         }
 920
 921         return status;
 922 }
 923
 924 /****************************************************************
 925 ****************************************************************/
 926
 927 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
 928                         const char *machine_name,
 929                         const char *dc_name)
 930 {
 931         uint32_t neg_flags = NETLOGON_NEG_AUTH2_FLAGS |
 932                              NETLOGON_NEG_SCHANNEL;
 933         /* FIXME: NETLOGON_NEG_SELECT_AUTH2_FLAGS */
 934         struct cli_state *cli = NULL;
 935         struct rpc_pipe_client *pipe_hnd = NULL;
 936         struct rpc_pipe_client *netlogon_pipe = NULL;
 937         NTSTATUS status;
 938         char *machine_password = NULL;
 939         char *machine_account = NULL;
 940
 941         if (!dc_name) {
 942                 return NT_STATUS_INVALID_PARAMETER;
 943         }
 944
 945         if (!secrets_init()) {
 946                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 947         }
 948
 949         machine_password = secrets_fetch_machine_password(netbios_domain_name,
 950                                                           NULL, NULL);
 951         if (!machine_password) {
 952                 return NT_STATUS_NO_TRUST_LSA_SECRET;
 953         }
 954
 955         asprintf(&machine_account, "%s$", machine_name);
 956         if (!machine_account) {
 957                 SAFE_FREE(machine_password);
 958                 return NT_STATUS_NO_MEMORY;
 959         }
 960
 961         status = cli_full_connection(&cli, NULL,
 962                                      dc_name,
 963                                      NULL, 0,
 964                                      "IPC$", "IPC",
 965                                      machine_account,
 966                                      NULL,
 967                                      machine_password,
 968                                      0,
 969                                      Undefined, NULL);
 970         free(machine_account);
 971         free(machine_password);
 972
 973         if (!NT_STATUS_IS_OK(status)) {
 974                 status = cli_full_connection(&cli, NULL,
 975                                              dc_name,
 976                                              NULL, 0,
 977                                              "IPC$", "IPC",
 978                                              "",
 979                                              NULL,
 980                                              "",
 981                                              0,
 982                                              Undefined, NULL);
 983         }
 984
 985         if (!NT_STATUS_IS_OK(status)) {
 986                 return status;
 987         }
 988
 989         netlogon_pipe = get_schannel_session_key(cli,
 990                                                  netbios_domain_name,
 991                                                  &neg_flags, &status);
 992         if (!netlogon_pipe) {
 993                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
 994                         cli_shutdown(cli);
 995                         return NT_STATUS_OK;
 996                 }
 997
 998                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
 999                         "key from server %s for domain %s. Error was %s\n",
1000                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1001                 cli_shutdown(cli);
1002                 return status;
1003         }
1004
1005         if (!lp_client_schannel()) {
1006                 cli_shutdown(cli);
1007                 return NT_STATUS_OK;
1008         }
1009
1010         pipe_hnd = cli_rpc_pipe_open_schannel_with_key(cli, PI_NETLOGON,
1011                                                        PIPE_AUTH_LEVEL_PRIVACY,
1012                                                        netbios_domain_name,
1013                                                        netlogon_pipe->dc,
1014                                                        &status);
1015
1016         cli_shutdown(cli);
1017
1018         if (!pipe_hnd) {
1019                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1020                         "on netlogon pipe to server %s for domain %s. "
1021                         "Error was %s\n",
1022                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1023                 return status;
1024         }
1025
1026         return NT_STATUS_OK;
1027 }
1028
1029 /****************************************************************
1030 ****************************************************************/
1031
1032 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1033                                       struct libnet_JoinCtx *r)
1034 {
1035         NTSTATUS status;
1036
1037         status = libnet_join_ok(r->out.netbios_domain_name,
1038                                 r->in.machine_name,
1039                                 r->in.dc_name);
1040         if (!NT_STATUS_IS_OK(status)) {
1041                 libnet_join_set_error_string(mem_ctx, r,
1042                         "failed to verify domain membership after joining: %s",
1043                         get_friendly_nt_error_msg(status));
1044                 return WERR_SETUP_NOT_JOINED;
1045         }
1046
1047         return WERR_OK;
1048 }
1049
1050 /****************************************************************
1051 ****************************************************************/
1052
1053 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1054                                                     struct libnet_UnjoinCtx *r)
1055 {
1056         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1057                 return false;
1058         }
1059
1060         if (!secrets_delete_domain_sid(lp_workgroup())) {
1061                 return false;
1062         }
1063
1064         return true;
1065 }
1066
1067 /****************************************************************
1068 ****************************************************************/
1069
1070 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1071                                              struct libnet_UnjoinCtx *r)
1072 {
1073         struct cli_state *cli = NULL;
1074         struct rpc_pipe_client *pipe_hnd = NULL;
1075         POLICY_HND sam_pol, domain_pol, user_pol;
1076         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1077         char *acct_name;
1078         uint32_t user_rid;
1079         struct lsa_String lsa_acct_name;
1080         struct samr_Ids user_rids;
1081         struct samr_Ids name_types;
1082         union samr_UserInfo *info = NULL;
1083
1084         status = cli_full_connection(&cli, NULL,
1085                                      r->in.dc_name,
1086                                      NULL, 0,
1087                                      "IPC$", "IPC",
1088                                      r->in.admin_account,
1089                                      NULL,
1090                                      r->in.admin_password,
1091                                      0, Undefined, NULL);
1092
1093         if (!NT_STATUS_IS_OK(status)) {
1094                 goto done;
1095         }
1096
1097         /* Open the domain */
1098
1099         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
1100         if (!pipe_hnd) {
1101                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1102                         nt_errstr(status)));
1103                 goto done;
1104         }
1105
1106         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1107                                       pipe_hnd->cli->desthost,
1108                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1109                                       &sam_pol);
1110         if (!NT_STATUS_IS_OK(status)) {
1111                 goto done;
1112         }
1113
1114         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1115                                         &sam_pol,
1116                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
1117                                         r->in.domain_sid,
1118                                         &domain_pol);
1119         if (!NT_STATUS_IS_OK(status)) {
1120                 goto done;
1121         }
1122
1123         /* Create domain user */
1124
1125         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1126         strlower_m(acct_name);
1127
1128         init_lsa_String(&lsa_acct_name, acct_name);
1129
1130         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1131                                          &domain_pol,
1132                                          1,
1133                                          &lsa_acct_name,
1134                                          &user_rids,
1135                                          &name_types);
1136
1137         if (!NT_STATUS_IS_OK(status)) {
1138                 goto done;
1139         }
1140
1141         if (name_types.ids[0] != SID_NAME_USER) {
1142                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1143                         name_types.ids[0]));
1144                 status = NT_STATUS_INVALID_WORKSTATION;
1145                 goto done;
1146         }
1147
1148         user_rid = user_rids.ids[0];
1149
1150         /* Open handle on user */
1151
1152         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1153                                       &domain_pol,
1154                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1155                                       user_rid,
1156                                       &user_pol);
1157         if (!NT_STATUS_IS_OK(status)) {
1158                 goto done;
1159         }
1160
1161         /* Get user info */
1162
1163         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1164                                            &user_pol,
1165                                            16,
1166                                            &info);
1167         if (!NT_STATUS_IS_OK(status)) {
1168                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1169                 goto done;
1170         }
1171
1172         /* now disable and setuser info */
1173
1174         info->info16.acct_flags |= ACB_DISABLED;
1175
1176         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1177                                          &user_pol,
1178                                          16,
1179                                          info);
1180
1181         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1182
1183 done:
1184         if (pipe_hnd) {
1185                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1186                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1187                 cli_rpc_pipe_close(pipe_hnd);
1188         }
1189
1190         if (cli) {
1191                 cli_shutdown(cli);
1192         }
1193
1194         return status;
1195 }
1196
1197 /****************************************************************
1198 ****************************************************************/
1199
1200 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1201 {
1202         WERROR werr;
1203         struct libnet_conf_ctx *ctx;
1204
1205         werr = libnet_conf_open(r, &ctx);
1206         if (!W_ERROR_IS_OK(werr)) {
1207                 goto done;
1208         }
1209
1210         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1211
1212                 werr = libnet_conf_set_global_parameter(ctx, "security", "user");
1213                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1214
1215                 werr = libnet_conf_set_global_parameter(ctx, "workgroup",
1216                                                         r->in.domain_name);
1217                 goto done;
1218         }
1219
1220         werr = libnet_conf_set_global_parameter(ctx, "security", "domain");
1221         W_ERROR_NOT_OK_GOTO_DONE(werr);
1222
1223         werr = libnet_conf_set_global_parameter(ctx, "workgroup",
1224                                                 r->out.netbios_domain_name);
1225         W_ERROR_NOT_OK_GOTO_DONE(werr);
1226
1227         if (r->out.domain_is_ad) {
1228                 werr = libnet_conf_set_global_parameter(ctx, "security", "ads");
1229                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1230
1231                 werr = libnet_conf_set_global_parameter(ctx, "realm",
1232                                                         r->out.dns_domain_name);
1233                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1234         }
1235
1236  done:
1237         libnet_conf_close(ctx);
1238         return werr;
1239 }
1240
1241 /****************************************************************
1242 ****************************************************************/
1243
1244 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1245 {
1246         WERROR werr = WERR_OK;
1247         struct libnet_conf_ctx *ctx;
1248
1249         werr = libnet_conf_open(r, &ctx);
1250         if (!W_ERROR_IS_OK(werr)) {
1251                 goto done;
1252         }
1253
1254         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1255
1256                 werr = libnet_conf_set_global_parameter(ctx, "security", "user");
1257                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1258                 libnet_conf_delete_global_parameter(ctx, "realm");
1259         }
1260
1261  done:
1262         libnet_conf_close(ctx);
1263         return werr;
1264 }
1265
1266 /****************************************************************
1267 ****************************************************************/
1268
1269 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1270 {
1271         WERROR werr;
1272
1273         if (!W_ERROR_IS_OK(r->out.result)) {
1274                 return r->out.result;
1275         }
1276
1277         if (!r->in.modify_config) {
1278                 return WERR_OK;
1279         }
1280
1281         werr = do_join_modify_vals_config(r);
1282         if (!W_ERROR_IS_OK(werr)) {
1283                 return werr;
1284         }
1285
1286         r->out.modified_config = true;
1287         r->out.result = werr;
1288
1289         return werr;
1290 }
1291
1292 /****************************************************************
1293 ****************************************************************/
1294
1295 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1296 {
1297         WERROR werr;
1298
1299         if (!W_ERROR_IS_OK(r->out.result)) {
1300                 return r->out.result;
1301         }
1302
1303         if (!r->in.modify_config) {
1304                 return WERR_OK;
1305         }
1306
1307         werr = do_unjoin_modify_vals_config(r);
1308         if (!W_ERROR_IS_OK(werr)) {
1309                 return werr;
1310         }
1311
1312         r->out.modified_config = true;
1313         r->out.result = werr;
1314
1315         return werr;
1316 }
1317
1318 /****************************************************************
1319 ****************************************************************/
1320
1321 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1322                                          struct libnet_JoinCtx *r)
1323 {
1324         if (!r->in.domain_name) {
1325                 libnet_join_set_error_string(mem_ctx, r,
1326                         "No domain name defined");
1327                 return WERR_INVALID_PARAM;
1328         }
1329
1330         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1331                 libnet_join_set_error_string(mem_ctx, r,
1332                         "Configuration manipulation requested but not "
1333                         "supported by backend");
1334                 return WERR_NOT_SUPPORTED;
1335         }
1336
1337         if (IS_DC) {
1338                 return WERR_SETUP_DOMAIN_CONTROLLER;
1339         }
1340
1341         if (!secrets_init()) {
1342                 libnet_join_set_error_string(mem_ctx, r,
1343                         "Unable to open secrets database");
1344                 return WERR_CAN_NOT_COMPLETE;
1345         }
1346
1347         return WERR_OK;
1348 }
1349
1350 /****************************************************************
1351 ****************************************************************/
1352
1353 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1354                                           struct libnet_JoinCtx *r)
1355 {
1356         WERROR werr;
1357
1358         if (!W_ERROR_IS_OK(r->out.result)) {
1359                 return r->out.result;
1360         }
1361
1362         werr = do_JoinConfig(r);
1363         if (!W_ERROR_IS_OK(werr)) {
1364                 return werr;
1365         }
1366
1367         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1368                 saf_store(r->in.domain_name, r->in.dc_name);
1369         }
1370
1371         return WERR_OK;
1372 }
1373
1374 /****************************************************************
1375 ****************************************************************/
1376
1377 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1378 {
1379         if (r->in.ads) {
1380                 ads_destroy(&r->in.ads);
1381         }
1382
1383         return 0;
1384 }
1385
1386 /****************************************************************
1387 ****************************************************************/
1388
1389 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1390 {
1391         if (r->in.ads) {
1392                 ads_destroy(&r->in.ads);
1393         }
1394
1395         return 0;
1396 }
1397
1398 /****************************************************************
1399 ****************************************************************/
1400
1401 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1402                            struct libnet_JoinCtx **r)
1403 {
1404         struct libnet_JoinCtx *ctx;
1405
1406         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1407         if (!ctx) {
1408                 return WERR_NOMEM;
1409         }
1410
1411         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1412
1413         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1414         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1415
1416         *r = ctx;
1417
1418         return WERR_OK;
1419 }
1420
1421 /****************************************************************
1422 ****************************************************************/
1423
1424 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1425                              struct libnet_UnjoinCtx **r)
1426 {
1427         struct libnet_UnjoinCtx *ctx;
1428
1429         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1430         if (!ctx) {
1431                 return WERR_NOMEM;
1432         }
1433
1434         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1435
1436         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1437         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1438
1439         *r = ctx;
1440
1441         return WERR_OK;
1442 }
1443
1444 /****************************************************************
1445 ****************************************************************/
1446
1447 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1448                                 struct libnet_JoinCtx *r)
1449 {
1450         NTSTATUS status;
1451 #ifdef WITH_ADS
1452         ADS_STATUS ads_status;
1453 #endif /* WITH_ADS */
1454
1455         if (!r->in.dc_name) {
1456                 struct netr_DsRGetDCNameInfo *info;
1457                 status = dsgetdcname(mem_ctx,
1458                                      r->in.domain_name,
1459                                      NULL,
1460                                      NULL,
1461                                      DS_DIRECTORY_SERVICE_REQUIRED |
1462                                      DS_WRITABLE_REQUIRED |
1463                                      DS_RETURN_DNS_NAME,
1464                                      &info);
1465                 if (!NT_STATUS_IS_OK(status)) {
1466                         libnet_join_set_error_string(mem_ctx, r,
1467                                 "failed to find DC for domain %s",
1468                                 r->in.domain_name,
1469                                 get_friendly_nt_error_msg(status));
1470                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1471                 }
1472
1473                 r->in.dc_name = talloc_strdup(mem_ctx,
1474                                               info->dc_unc);
1475                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1476         }
1477
1478 #ifdef WITH_ADS
1479         if (r->in.account_ou) {
1480
1481                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1482                 if (!ADS_ERR_OK(ads_status)) {
1483                         return WERR_DEFAULT_JOIN_REQUIRED;
1484                 }
1485
1486                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1487                 if (!ADS_ERR_OK(ads_status)) {
1488                         libnet_join_set_error_string(mem_ctx, r,
1489                                 "failed to precreate account in ou %s: %s",
1490                                 r->in.account_ou,
1491                                 ads_errstr(ads_status));
1492                         return WERR_DEFAULT_JOIN_REQUIRED;
1493                 }
1494
1495                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1496         }
1497 #endif /* WITH_ADS */
1498
1499         status = libnet_join_joindomain_rpc(mem_ctx, r);
1500         if (!NT_STATUS_IS_OK(status)) {
1501                 libnet_join_set_error_string(mem_ctx, r,
1502                         "failed to join domain over rpc: %s",
1503                         get_friendly_nt_error_msg(status));
1504                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1505                         return WERR_SETUP_ALREADY_JOINED;
1506                 }
1507                 return ntstatus_to_werror(status);
1508         }
1509
1510         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1511                 return WERR_SETUP_NOT_JOINED;
1512         }
1513
1514 #ifdef WITH_ADS
1515         if (r->out.domain_is_ad) {
1516                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1517                 if (!ADS_ERR_OK(ads_status)) {
1518                         return WERR_GENERAL_FAILURE;
1519                 }
1520         }
1521 #endif /* WITH_ADS */
1522
1523         return WERR_OK;
1524 }
1525
1526 /****************************************************************
1527 ****************************************************************/
1528
1529 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1530                    struct libnet_JoinCtx *r)
1531 {
1532         WERROR werr;
1533
1534         if (r->in.debug) {
1535                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1536         }
1537
1538         werr = libnet_join_pre_processing(mem_ctx, r);
1539         if (!W_ERROR_IS_OK(werr)) {
1540                 goto done;
1541         }
1542
1543         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1544                 werr = libnet_DomainJoin(mem_ctx, r);
1545                 if (!W_ERROR_IS_OK(werr)) {
1546                         goto done;
1547                 }
1548
1549                 werr = libnet_join_post_verify(mem_ctx, r);
1550                 if (!W_ERROR_IS_OK(werr)) {
1551                         goto done;
1552                 }
1553         }
1554
1555         werr = libnet_join_post_processing(mem_ctx, r);
1556         if (!W_ERROR_IS_OK(werr)) {
1557                 goto done;
1558         }
1559  done:
1560         r->out.result = werr;
1561
1562         if (r->in.debug) {
1563                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1564         }
1565         return werr;
1566 }
1567
1568 /****************************************************************
1569 ****************************************************************/
1570
1571 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1572                                   struct libnet_UnjoinCtx *r)
1573 {
1574         NTSTATUS status;
1575
1576         if (!r->in.domain_sid) {
1577                 struct dom_sid sid;
1578                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1579                         libnet_unjoin_set_error_string(mem_ctx, r,
1580                                 "Unable to fetch domain sid: are we joined?");
1581                         return WERR_SETUP_NOT_JOINED;
1582                 }
1583                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1584                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1585         }
1586
1587         if (!r->in.dc_name) {
1588                 struct netr_DsRGetDCNameInfo *info;
1589                 status = dsgetdcname(mem_ctx,
1590                                      r->in.domain_name,
1591                                      NULL,
1592                                      NULL,
1593                                      DS_DIRECTORY_SERVICE_REQUIRED |
1594                                      DS_WRITABLE_REQUIRED |
1595                                      DS_RETURN_DNS_NAME,
1596                                      &info);
1597                 if (!NT_STATUS_IS_OK(status)) {
1598                         libnet_unjoin_set_error_string(mem_ctx, r,
1599                                 "failed to find DC for domain %s",
1600                                 r->in.domain_name,
1601                                 get_friendly_nt_error_msg(status));
1602                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1603                 }
1604
1605                 r->in.dc_name = talloc_strdup(mem_ctx,
1606                                               info->dc_unc);
1607                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1608         }
1609
1610         status = libnet_join_unjoindomain_rpc(mem_ctx, r);
1611         if (!NT_STATUS_IS_OK(status)) {
1612                 libnet_unjoin_set_error_string(mem_ctx, r,
1613                         "failed to disable machine account via rpc: %s",
1614                         get_friendly_nt_error_msg(status));
1615                 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1616                         return WERR_SETUP_NOT_JOINED;
1617                 }
1618                 return ntstatus_to_werror(status);
1619         }
1620
1621         r->out.disabled_machine_account = true;
1622
1623 #ifdef WITH_ADS
1624         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
1625                 ADS_STATUS ads_status;
1626                 libnet_unjoin_connect_ads(mem_ctx, r);
1627                 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
1628                 if (!ADS_ERR_OK(ads_status)) {
1629                         libnet_unjoin_set_error_string(mem_ctx, r,
1630                                 "failed to remove machine account from AD: %s",
1631                                 ads_errstr(ads_status));
1632                 } else {
1633                         r->out.deleted_machine_account = true;
1634                         /* dirty hack */
1635                         r->out.dns_domain_name = talloc_strdup(mem_ctx,
1636                                                                r->in.ads->server.realm);
1637                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
1638                 }
1639         }
1640 #endif /* WITH_ADS */
1641
1642         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
1643
1644         return WERR_OK;
1645 }
1646
1647 /****************************************************************
1648 ****************************************************************/
1649
1650 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
1651                                            struct libnet_UnjoinCtx *r)
1652 {
1653         if (!r->in.domain_name) {
1654                 libnet_unjoin_set_error_string(mem_ctx, r,
1655                         "No domain name defined");
1656                 return WERR_INVALID_PARAM;
1657         }
1658
1659         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1660                 libnet_unjoin_set_error_string(mem_ctx, r,
1661                         "Configuration manipulation requested but not "
1662                         "supported by backend");
1663                 return WERR_NOT_SUPPORTED;
1664         }
1665
1666         if (IS_DC) {
1667                 return WERR_SETUP_DOMAIN_CONTROLLER;
1668         }
1669
1670         if (!secrets_init()) {
1671                 libnet_unjoin_set_error_string(mem_ctx, r,
1672                         "Unable to open secrets database");
1673                 return WERR_CAN_NOT_COMPLETE;
1674         }
1675
1676         return WERR_OK;
1677 }
1678
1679 /****************************************************************
1680 ****************************************************************/
1681
1682 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
1683                                             struct libnet_UnjoinCtx *r)
1684 {
1685         saf_delete(r->out.netbios_domain_name);
1686         saf_delete(r->out.dns_domain_name);
1687
1688         return libnet_unjoin_config(r);
1689 }
1690
1691 /****************************************************************
1692 ****************************************************************/
1693
1694 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
1695                      struct libnet_UnjoinCtx *r)
1696 {
1697         WERROR werr;
1698
1699         if (r->in.debug) {
1700                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
1701         }
1702
1703         werr = libnet_unjoin_pre_processing(mem_ctx, r);
1704         if (!W_ERROR_IS_OK(werr)) {
1705                 goto done;
1706         }
1707
1708         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1709                 werr = libnet_DomainUnjoin(mem_ctx, r);
1710                 if (!W_ERROR_IS_OK(werr)) {
1711                         libnet_unjoin_config(r);
1712                         goto done;
1713                 }
1714         }
1715
1716         werr = libnet_unjoin_post_processing(mem_ctx, r);
1717         if (!W_ERROR_IS_OK(werr)) {
1718                 goto done;
1719         }
1720
1721  done:
1722         r->out.result = werr;
1723
1724         if (r->in.debug) {
1725                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
1726         }
1727
1728         return werr;
1729 }