source3/libnet/libnet_join.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  libnet Join Support
   4  *  Copyright (C) Gerald (Jerry) Carter 2006
   5  *  Copyright (C) Guenther Deschner 2007-2008
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22 #include "libnet/libnet.h"
  23
  24 /****************************************************************
  25 ****************************************************************/
  26
  27 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  28         do { \
  29                 char *str = NULL; \
  30                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  31                 DEBUG(1,("libnet_Join:\n%s", str)); \
  32                 TALLOC_FREE(str); \
  33         } while (0)
  34
  35 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  36         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  37 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  38         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  39
  40 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  41         do { \
  42                 char *str = NULL; \
  43                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  44                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  45                 TALLOC_FREE(str); \
  46         } while (0)
  47
  48 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  49         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  50 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  51         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  52
  53 #define W_ERROR_NOT_OK_GOTO_DONE(x) do { \
  54         if (!W_ERROR_IS_OK(x)) {\
  55                 goto done;\
  56         }\
  57 } while (0)
  58
  59 /****************************************************************
  60 ****************************************************************/
  61
  62 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  63                                          struct libnet_JoinCtx *r,
  64                                          const char *format, ...)
  65 {
  66         va_list args;
  67
  68         if (r->out.error_string) {
  69                 return;
  70         }
  71
  72         va_start(args, format);
  73         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  74         va_end(args);
  75 }
  76
  77 /****************************************************************
  78 ****************************************************************/
  79
  80 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  81                                            struct libnet_UnjoinCtx *r,
  82                                            const char *format, ...)
  83 {
  84         va_list args;
  85
  86         if (r->out.error_string) {
  87                 return;
  88         }
  89
  90         va_start(args, format);
  91         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  92         va_end(args);
  93 }
  94
  95 #ifdef WITH_ADS
  96
  97 /****************************************************************
  98 ****************************************************************/
  99
 100 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 101                                      const char *netbios_domain_name,
 102                                      const char *dc_name,
 103                                      const char *user_name,
 104                                      const char *password,
 105                                      ADS_STRUCT **ads)
 106 {
 107         ADS_STATUS status;
 108         ADS_STRUCT *my_ads = NULL;
 109
 110         my_ads = ads_init(dns_domain_name,
 111                           netbios_domain_name,
 112                           dc_name);
 113         if (!my_ads) {
 114                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 115         }
 116
 117         if (user_name) {
 118                 SAFE_FREE(my_ads->auth.user_name);
 119                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 120         }
 121
 122         if (password) {
 123                 SAFE_FREE(my_ads->auth.password);
 124                 my_ads->auth.password = SMB_STRDUP(password);
 125         }
 126
 127         status = ads_connect_user_creds(my_ads);
 128         if (!ADS_ERR_OK(status)) {
 129                 ads_destroy(&my_ads);
 130                 return status;
 131         }
 132
 133         *ads = my_ads;
 134         return ADS_SUCCESS;
 135 }
 136
 137 /****************************************************************
 138 ****************************************************************/
 139
 140 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 141                                           struct libnet_JoinCtx *r)
 142 {
 143         ADS_STATUS status;
 144
 145         status = libnet_connect_ads(r->out.dns_domain_name,
 146                                     r->out.netbios_domain_name,
 147                                     r->in.dc_name,
 148                                     r->in.admin_account,
 149                                     r->in.admin_password,
 150                                     &r->in.ads);
 151         if (!ADS_ERR_OK(status)) {
 152                 libnet_join_set_error_string(mem_ctx, r,
 153                         "failed to connect to AD: %s",
 154                         ads_errstr(status));
 155                 return status;
 156         }
 157
 158         if (!r->out.netbios_domain_name) {
 159                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 160                                                            r->in.ads->server.workgroup);
 161                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 162         }
 163
 164         if (!r->out.dns_domain_name) {
 165                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 166                                                        r->in.ads->config.realm);
 167                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 168         }
 169
 170         r->out.domain_is_ad = true;
 171
 172         return ADS_SUCCESS;
 173 }
 174
 175 /****************************************************************
 176 ****************************************************************/
 177
 178 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 179                                             struct libnet_UnjoinCtx *r)
 180 {
 181         ADS_STATUS status;
 182
 183         status = libnet_connect_ads(r->in.domain_name,
 184                                     r->in.domain_name,
 185                                     r->in.dc_name,
 186                                     r->in.admin_account,
 187                                     r->in.admin_password,
 188                                     &r->in.ads);
 189         if (!ADS_ERR_OK(status)) {
 190                 libnet_unjoin_set_error_string(mem_ctx, r,
 191                         "failed to connect to AD: %s",
 192                         ads_errstr(status));
 193         }
 194
 195         return status;
 196 }
 197
 198 /****************************************************************
 199  join a domain using ADS (LDAP mods)
 200 ****************************************************************/
 201
 202 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 203                                                      struct libnet_JoinCtx *r)
 204 {
 205         ADS_STATUS status;
 206         LDAPMessage *res = NULL;
 207         const char *attrs[] = { "dn", NULL };
 208         bool moved = false;
 209
 210         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 211         if (!ADS_ERR_OK(status)) {
 212                 return status;
 213         }
 214
 215         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 216         if (!ADS_ERR_OK(status)) {
 217                 return status;
 218         }
 219
 220         if (ads_count_replies(r->in.ads, res) != 1) {
 221                 ads_msgfree(r->in.ads, res);
 222                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 223         }
 224
 225         ads_msgfree(r->in.ads, res);
 226
 227         /* Attempt to create the machine account and bail if this fails.
 228            Assume that the admin wants exactly what they requested */
 229
 230         status = ads_create_machine_acct(r->in.ads,
 231                                          r->in.machine_name,
 232                                          r->in.account_ou);
 233
 234         if (ADS_ERR_OK(status)) {
 235                 DEBUG(1,("machine account creation created\n"));
 236                 return status;
 237         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 238                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 239                 status = ADS_SUCCESS;
 240         }
 241
 242         if (!ADS_ERR_OK(status)) {
 243                 DEBUG(1,("machine account creation failed\n"));
 244                 return status;
 245         }
 246
 247         status = ads_move_machine_acct(r->in.ads,
 248                                        r->in.machine_name,
 249                                        r->in.account_ou,
 250                                        &moved);
 251         if (!ADS_ERR_OK(status)) {
 252                 DEBUG(1,("failure to locate/move pre-existing "
 253                         "machine account\n"));
 254                 return status;
 255         }
 256
 257         DEBUG(1,("The machine account %s the specified OU.\n",
 258                 moved ? "was moved into" : "already exists in"));
 259
 260         return status;
 261 }
 262
 263 /****************************************************************
 264 ****************************************************************/
 265
 266 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 267                                                     struct libnet_UnjoinCtx *r)
 268 {
 269         ADS_STATUS status;
 270
 271         if (!r->in.ads) {
 272                 return libnet_unjoin_connect_ads(mem_ctx, r);
 273         }
 274
 275         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 276         if (!ADS_ERR_OK(status)) {
 277                 libnet_unjoin_set_error_string(mem_ctx, r,
 278                         "failed to leave realm: %s",
 279                         ads_errstr(status));
 280                 return status;
 281         }
 282
 283         return ADS_SUCCESS;
 284 }
 285
 286 /****************************************************************
 287 ****************************************************************/
 288
 289 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 290                                                 struct libnet_JoinCtx *r)
 291 {
 292         ADS_STATUS status;
 293         LDAPMessage *res = NULL;
 294         char *dn = NULL;
 295
 296         if (!r->in.machine_name) {
 297                 return ADS_ERROR(LDAP_NO_MEMORY);
 298         }
 299
 300         status = ads_find_machine_acct(r->in.ads,
 301                                        &res,
 302                                        r->in.machine_name);
 303         if (!ADS_ERR_OK(status)) {
 304                 return status;
 305         }
 306
 307         if (ads_count_replies(r->in.ads, res) != 1) {
 308                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 309                 goto done;
 310         }
 311
 312         dn = ads_get_dn(r->in.ads, res);
 313         if (!dn) {
 314                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 315                 goto done;
 316         }
 317
 318         r->out.dn = talloc_strdup(mem_ctx, dn);
 319         if (!r->out.dn) {
 320                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 321                 goto done;
 322         }
 323
 324  done:
 325         ads_msgfree(r->in.ads, res);
 326         ads_memfree(r->in.ads, dn);
 327
 328         return status;
 329 }
 330
 331 /****************************************************************
 332  Set a machines dNSHostName and servicePrincipalName attributes
 333 ****************************************************************/
 334
 335 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 336                                               struct libnet_JoinCtx *r)
 337 {
 338         ADS_STATUS status;
 339         ADS_MODLIST mods;
 340         fstring my_fqdn;
 341         const char *spn_array[3] = {NULL, NULL, NULL};
 342         char *spn = NULL;
 343
 344         /* Find our DN */
 345
 346         status = libnet_join_find_machine_acct(mem_ctx, r);
 347         if (!ADS_ERR_OK(status)) {
 348                 return status;
 349         }
 350
 351         /* Windows only creates HOST/shortname & HOST/fqdn. */
 352
 353         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 354         if (!spn) {
 355                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 356         }
 357         strupper_m(spn);
 358         spn_array[0] = spn;
 359
 360         if (name_to_fqdn(my_fqdn, r->in.machine_name) &&
 361             !strequal(my_fqdn, r->in.machine_name)) {
 362
 363                 strlower_m(my_fqdn);
 364                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 365                 if (!spn) {
 366                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 367                 }
 368                 spn_array[1] = spn;
 369         }
 370
 371         mods = ads_init_mods(mem_ctx);
 372         if (!mods) {
 373                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 374         }
 375
 376         /* fields of primary importance */
 377
 378         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 379         if (!ADS_ERR_OK(status)) {
 380                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 381         }
 382
 383         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 384                                  spn_array);
 385         if (!ADS_ERR_OK(status)) {
 386                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 387         }
 388
 389         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 390 }
 391
 392 /****************************************************************
 393 ****************************************************************/
 394
 395 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 396                                               struct libnet_JoinCtx *r)
 397 {
 398         ADS_STATUS status;
 399         ADS_MODLIST mods;
 400
 401         if (!r->in.create_upn) {
 402                 return ADS_SUCCESS;
 403         }
 404
 405         /* Find our DN */
 406
 407         status = libnet_join_find_machine_acct(mem_ctx, r);
 408         if (!ADS_ERR_OK(status)) {
 409                 return status;
 410         }
 411
 412         if (!r->in.upn) {
 413                 r->in.upn = talloc_asprintf(mem_ctx,
 414                                             "host/%s@%s",
 415                                             r->in.machine_name,
 416                                             r->out.dns_domain_name);
 417                 if (!r->in.upn) {
 418                         return ADS_ERROR(LDAP_NO_MEMORY);
 419                 }
 420         }
 421
 422         /* now do the mods */
 423
 424         mods = ads_init_mods(mem_ctx);
 425         if (!mods) {
 426                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 427         }
 428
 429         /* fields of primary importance */
 430
 431         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 432         if (!ADS_ERR_OK(status)) {
 433                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 434         }
 435
 436         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 437 }
 438
 439
 440 /****************************************************************
 441 ****************************************************************/
 442
 443 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 444                                                 struct libnet_JoinCtx *r)
 445 {
 446         ADS_STATUS status;
 447         ADS_MODLIST mods;
 448         char *os_sp = NULL;
 449
 450         if (!r->in.os_name || !r->in.os_version ) {
 451                 return ADS_SUCCESS;
 452         }
 453
 454         /* Find our DN */
 455
 456         status = libnet_join_find_machine_acct(mem_ctx, r);
 457         if (!ADS_ERR_OK(status)) {
 458                 return status;
 459         }
 460
 461         /* now do the mods */
 462
 463         mods = ads_init_mods(mem_ctx);
 464         if (!mods) {
 465                 return ADS_ERROR(LDAP_NO_MEMORY);
 466         }
 467
 468         os_sp = talloc_asprintf(mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
 469         if (!os_sp) {
 470                 return ADS_ERROR(LDAP_NO_MEMORY);
 471         }
 472
 473         /* fields of primary importance */
 474
 475         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 476                              r->in.os_name);
 477         if (!ADS_ERR_OK(status)) {
 478                 return status;
 479         }
 480
 481         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 482                              r->in.os_version);
 483         if (!ADS_ERR_OK(status)) {
 484                 return status;
 485         }
 486
 487         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 488                              os_sp);
 489         if (!ADS_ERR_OK(status)) {
 490                 return status;
 491         }
 492
 493         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 494 }
 495
 496 /****************************************************************
 497 ****************************************************************/
 498
 499 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 500                                       struct libnet_JoinCtx *r)
 501 {
 502         if (!lp_use_kerberos_keytab()) {
 503                 return true;
 504         }
 505
 506         if (ads_keytab_create_default(r->in.ads) != 0) {
 507                 return false;
 508         }
 509
 510         return true;
 511 }
 512
 513 /****************************************************************
 514 ****************************************************************/
 515
 516 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 517                                                  struct libnet_JoinCtx *r)
 518 {
 519         uint32_t domain_func;
 520         ADS_STATUS status;
 521         const char *salt = NULL;
 522         char *std_salt = NULL;
 523
 524         status = ads_domain_func_level(r->in.ads, &domain_func);
 525         if (!ADS_ERR_OK(status)) {
 526                 libnet_join_set_error_string(mem_ctx, r,
 527                         "failed to determine domain functional level: %s",
 528                         ads_errstr(status));
 529                 return false;
 530         }
 531
 532         /* go ahead and setup the default salt */
 533
 534         std_salt = kerberos_standard_des_salt();
 535         if (!std_salt) {
 536                 libnet_join_set_error_string(mem_ctx, r,
 537                         "failed to obtain standard DES salt");
 538                 return false;
 539         }
 540
 541         salt = talloc_strdup(mem_ctx, std_salt);
 542         if (!salt) {
 543                 return false;
 544         }
 545
 546         SAFE_FREE(std_salt);
 547
 548         /* if it's a Windows functional domain, we have to look for the UPN */
 549
 550         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 551                 char *upn;
 552
 553                 upn = ads_get_upn(r->in.ads, mem_ctx,
 554                                   r->in.machine_name);
 555                 if (upn) {
 556                         salt = talloc_strdup(mem_ctx, upn);
 557                         if (!salt) {
 558                                 return false;
 559                         }
 560                 }
 561         }
 562
 563         return kerberos_secrets_store_des_salt(salt);
 564 }
 565
 566 /****************************************************************
 567 ****************************************************************/
 568
 569 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 570                                                   struct libnet_JoinCtx *r)
 571 {
 572         ADS_STATUS status;
 573
 574         if (!r->in.ads) {
 575                 status = libnet_join_connect_ads(mem_ctx, r);
 576                 if (!ADS_ERR_OK(status)) {
 577                         return status;
 578                 }
 579         }
 580
 581         status = libnet_join_set_machine_spn(mem_ctx, r);
 582         if (!ADS_ERR_OK(status)) {
 583                 libnet_join_set_error_string(mem_ctx, r,
 584                         "failed to set machine spn: %s",
 585                         ads_errstr(status));
 586                 return status;
 587         }
 588
 589         status = libnet_join_set_os_attributes(mem_ctx, r);
 590         if (!ADS_ERR_OK(status)) {
 591                 libnet_join_set_error_string(mem_ctx, r,
 592                         "failed to set machine os attributes: %s",
 593                         ads_errstr(status));
 594                 return status;
 595         }
 596
 597         status = libnet_join_set_machine_upn(mem_ctx, r);
 598         if (!ADS_ERR_OK(status)) {
 599                 libnet_join_set_error_string(mem_ctx, r,
 600                         "failed to set machine upn: %s",
 601                         ads_errstr(status));
 602                 return status;
 603         }
 604
 605         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 606                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 607         }
 608
 609         if (!libnet_join_create_keytab(mem_ctx, r)) {
 610                 libnet_join_set_error_string(mem_ctx, r,
 611                         "failed to create kerberos keytab");
 612                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 613         }
 614
 615         return ADS_SUCCESS;
 616 }
 617 #endif /* WITH_ADS */
 618
 619 /****************************************************************
 620  Store the machine password and domain SID
 621 ****************************************************************/
 622
 623 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 624                                                  struct libnet_JoinCtx *r)
 625 {
 626         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 627                                       r->out.domain_sid))
 628         {
 629                 DEBUG(1,("Failed to save domain sid\n"));
 630                 return false;
 631         }
 632
 633         if (!secrets_store_machine_password(r->in.machine_password,
 634                                             r->out.netbios_domain_name,
 635                                             r->in.secure_channel_type))
 636         {
 637                 DEBUG(1,("Failed to save machine password\n"));
 638                 return false;
 639         }
 640
 641         return true;
 642 }
 643
 644 /****************************************************************
 645  Lookup domain dc's info
 646 ****************************************************************/
 647
 648 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 649                                           struct libnet_JoinCtx *r,
 650                                           struct cli_state **cli)
 651 {
 652         struct rpc_pipe_client *pipe_hnd = NULL;
 653         POLICY_HND lsa_pol;
 654         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 655         union lsa_PolicyInformation *info = NULL;
 656
 657         status = cli_full_connection(cli, NULL,
 658                                      r->in.dc_name,
 659                                      NULL, 0,
 660                                      "IPC$", "IPC",
 661                                      r->in.admin_account,
 662                                      NULL,
 663                                      r->in.admin_password,
 664                                      0,
 665                                      Undefined, NULL);
 666
 667         if (!NT_STATUS_IS_OK(status)) {
 668                 goto done;
 669         }
 670
 671         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 672                                           &pipe_hnd);
 673         if (!NT_STATUS_IS_OK(status)) {
 674                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 675                         nt_errstr(status)));
 676                 goto done;
 677         }
 678
 679         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 680                                         SEC_RIGHTS_MAXIMUM_ALLOWED, &lsa_pol);
 681         if (!NT_STATUS_IS_OK(status)) {
 682                 goto done;
 683         }
 684
 685         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
 686                                              &lsa_pol,
 687                                              LSA_POLICY_INFO_DNS,
 688                                              &info);
 689         if (NT_STATUS_IS_OK(status)) {
 690                 r->out.domain_is_ad = true;
 691                 r->out.netbios_domain_name = info->dns.name.string;
 692                 r->out.dns_domain_name = info->dns.dns_domain.string;
 693                 r->out.forest_name = info->dns.dns_forest.string;
 694                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->dns.sid);
 695                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 696         }
 697
 698         if (!NT_STATUS_IS_OK(status)) {
 699                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
 700                                                     &lsa_pol,
 701                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 702                                                     &info);
 703                 if (!NT_STATUS_IS_OK(status)) {
 704                         goto done;
 705                 }
 706
 707                 r->out.netbios_domain_name = info->account_domain.name.string;
 708                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->account_domain.sid);
 709                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 710         }
 711
 712         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
 713         TALLOC_FREE(pipe_hnd);
 714
 715  done:
 716         return status;
 717 }
 718
 719 /****************************************************************
 720  Do the domain join
 721 ****************************************************************/
 722
 723 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 724                                            struct libnet_JoinCtx *r,
 725                                            struct cli_state *cli)
 726 {
 727         struct rpc_pipe_client *pipe_hnd = NULL;
 728         POLICY_HND sam_pol, domain_pol, user_pol;
 729         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 730         char *acct_name;
 731         struct lsa_String lsa_acct_name;
 732         uint32_t user_rid;
 733         uint32_t acct_flags = ACB_WSTRUST;
 734         uchar pwbuf[532];
 735         struct MD5Context md5ctx;
 736         uchar md5buffer[16];
 737         DATA_BLOB digested_session_key;
 738         uchar md4_trust_password[16];
 739         struct samr_Ids user_rids;
 740         struct samr_Ids name_types;
 741         union samr_UserInfo user_info;
 742
 743         ZERO_STRUCT(sam_pol);
 744         ZERO_STRUCT(domain_pol);
 745         ZERO_STRUCT(user_pol);
 746
 747         if (!r->in.machine_password) {
 748                 r->in.machine_password = talloc_strdup(mem_ctx, generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH));
 749                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 750         }
 751
 752         /* Open the domain */
 753
 754         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 755                                           &pipe_hnd);
 756         if (!NT_STATUS_IS_OK(status)) {
 757                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 758                         nt_errstr(status)));
 759                 goto done;
 760         }
 761
 762         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
 763                                       pipe_hnd->desthost,
 764                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 765                                       &sam_pol);
 766         if (!NT_STATUS_IS_OK(status)) {
 767                 goto done;
 768         }
 769
 770         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
 771                                         &sam_pol,
 772                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
 773                                         r->out.domain_sid,
 774                                         &domain_pol);
 775         if (!NT_STATUS_IS_OK(status)) {
 776                 goto done;
 777         }
 778
 779         /* Create domain user */
 780
 781         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 782         strlower_m(acct_name);
 783
 784         init_lsa_String(&lsa_acct_name, acct_name);
 785
 786         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 787                 uint32_t access_desired =
 788                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 789                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 790                         SAMR_USER_ACCESS_SET_PASSWORD |
 791                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 792                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 793                 uint32_t access_granted = 0;
 794
 795                 /* Don't try to set any acct_flags flags other than ACB_WSTRUST */
 796
 797                 DEBUG(10,("Creating account with desired access mask: %d\n",
 798                         access_desired));
 799
 800                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
 801                                                  &domain_pol,
 802                                                  &lsa_acct_name,
 803                                                  ACB_WSTRUST,
 804                                                  access_desired,
 805                                                  &user_pol,
 806                                                  &access_granted,
 807                                                  &user_rid);
 808                 if (!NT_STATUS_IS_OK(status) &&
 809                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 810
 811                         DEBUG(10,("Creation of workstation account failed: %s\n",
 812                                 nt_errstr(status)));
 813
 814                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 815                            username/password combo but the user does not have
 816                            administrator access. */
 817
 818                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 819                                 libnet_join_set_error_string(mem_ctx, r,
 820                                         "User specified does not have "
 821                                         "administrator privileges");
 822                         }
 823
 824                         goto done;
 825                 }
 826
 827                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 828                         if (!(r->in.join_flags &
 829                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 830                                 goto done;
 831                         }
 832                 }
 833
 834                 /* We *must* do this.... don't ask... */
 835
 836                 if (NT_STATUS_IS_OK(status)) {
 837                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 838                 }
 839         }
 840
 841         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
 842                                          &domain_pol,
 843                                          1,
 844                                          &lsa_acct_name,
 845                                          &user_rids,
 846                                          &name_types);
 847         if (!NT_STATUS_IS_OK(status)) {
 848                 goto done;
 849         }
 850
 851         if (name_types.ids[0] != SID_NAME_USER) {
 852                 DEBUG(0,("%s is not a user account (type=%d)\n",
 853                         acct_name, name_types.ids[0]));
 854                 status = NT_STATUS_INVALID_WORKSTATION;
 855                 goto done;
 856         }
 857
 858         user_rid = user_rids.ids[0];
 859
 860         /* Open handle on user */
 861
 862         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
 863                                       &domain_pol,
 864                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 865                                       user_rid,
 866                                       &user_pol);
 867         if (!NT_STATUS_IS_OK(status)) {
 868                 goto done;
 869         }
 870
 871         /* Create a random machine account password and generate the hash */
 872
 873         E_md4hash(r->in.machine_password, md4_trust_password);
 874         encode_pw_buffer(pwbuf, r->in.machine_password, STR_UNICODE);
 875
 876         generate_random_buffer((uint8_t*)md5buffer, sizeof(md5buffer));
 877         digested_session_key = data_blob_talloc(mem_ctx, 0, 16);
 878
 879         MD5Init(&md5ctx);
 880         MD5Update(&md5ctx, md5buffer, sizeof(md5buffer));
 881         MD5Update(&md5ctx, cli->user_session_key.data,
 882                   cli->user_session_key.length);
 883         MD5Final(digested_session_key.data, &md5ctx);
 884
 885         SamOEMhashBlob(pwbuf, sizeof(pwbuf), &digested_session_key);
 886         memcpy(&pwbuf[516], md5buffer, sizeof(md5buffer));
 887
 888         /* Fill in the additional account flags now */
 889
 890         acct_flags |= ACB_PWNOEXP;
 891         if (r->out.domain_is_ad) {
 892 #if !defined(ENCTYPE_ARCFOUR_HMAC)
 893                 acct_flags |= ACB_USE_DES_KEY_ONLY;
 894 #endif
 895                 ;;
 896         }
 897
 898         /* Set password and account flags on machine account */
 899
 900         ZERO_STRUCT(user_info.info25);
 901
 902         user_info.info25.info.fields_present = ACCT_NT_PWD_SET |
 903                                                ACCT_LM_PWD_SET |
 904                                                SAMR_FIELD_ACCT_FLAGS;
 905
 906         user_info.info25.info.acct_flags = acct_flags;
 907         memcpy(&user_info.info25.password.data, pwbuf, sizeof(pwbuf));
 908
 909         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
 910                                          &user_pol,
 911                                          25,
 912                                          &user_info);
 913
 914         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
 915
 916                 uchar pwbuf2[516];
 917
 918                 encode_pw_buffer(pwbuf2, r->in.machine_password, STR_UNICODE);
 919
 920                 /* retry with level 24 */
 921                 init_samr_user_info24(&user_info.info24, pwbuf2, 24);
 922
 923                 SamOEMhashBlob(user_info.info24.password.data, 516,
 924                                &cli->user_session_key);
 925
 926                 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
 927                                                   &user_pol,
 928                                                   24,
 929                                                   &user_info);
 930         }
 931
 932         if (!NT_STATUS_IS_OK(status)) {
 933
 934                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
 935                                        &user_pol);
 936
 937                 libnet_join_set_error_string(mem_ctx, r,
 938                         "Failed to set password for machine account (%s)\n",
 939                         nt_errstr(status));
 940                 goto done;
 941         }
 942
 943         status = NT_STATUS_OK;
 944
 945  done:
 946         if (!pipe_hnd) {
 947                 return status;
 948         }
 949
 950         if (is_valid_policy_hnd(&sam_pol)) {
 951                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
 952         }
 953         if (is_valid_policy_hnd(&domain_pol)) {
 954                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
 955         }
 956         if (is_valid_policy_hnd(&user_pol)) {
 957                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 958         }
 959         TALLOC_FREE(pipe_hnd);
 960
 961         return status;
 962 }
 963
 964 /****************************************************************
 965 ****************************************************************/
 966
 967 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
 968                         const char *machine_name,
 969                         const char *dc_name)
 970 {
 971         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
 972         struct cli_state *cli = NULL;
 973         struct rpc_pipe_client *pipe_hnd = NULL;
 974         struct rpc_pipe_client *netlogon_pipe = NULL;
 975         NTSTATUS status;
 976         char *machine_password = NULL;
 977         char *machine_account = NULL;
 978
 979         if (!dc_name) {
 980                 return NT_STATUS_INVALID_PARAMETER;
 981         }
 982
 983         if (!secrets_init()) {
 984                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 985         }
 986
 987         machine_password = secrets_fetch_machine_password(netbios_domain_name,
 988                                                           NULL, NULL);
 989         if (!machine_password) {
 990                 return NT_STATUS_NO_TRUST_LSA_SECRET;
 991         }
 992
 993         asprintf(&machine_account, "%s$", machine_name);
 994         if (!machine_account) {
 995                 SAFE_FREE(machine_password);
 996                 return NT_STATUS_NO_MEMORY;
 997         }
 998
 999         status = cli_full_connection(&cli, NULL,
1000                                      dc_name,
1001                                      NULL, 0,
1002                                      "IPC$", "IPC",
1003                                      machine_account,
1004                                      NULL,
1005                                      machine_password,
1006                                      0,
1007                                      Undefined, NULL);
1008         free(machine_account);
1009         free(machine_password);
1010
1011         if (!NT_STATUS_IS_OK(status)) {
1012                 status = cli_full_connection(&cli, NULL,
1013                                              dc_name,
1014                                              NULL, 0,
1015                                              "IPC$", "IPC",
1016                                              "",
1017                                              NULL,
1018                                              "",
1019                                              0,
1020                                              Undefined, NULL);
1021         }
1022
1023         if (!NT_STATUS_IS_OK(status)) {
1024                 return status;
1025         }
1026
1027         status = get_schannel_session_key(cli, netbios_domain_name,
1028                                           &neg_flags, &netlogon_pipe);
1029         if (!NT_STATUS_IS_OK(status)) {
1030                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1031                         cli_shutdown(cli);
1032                         return NT_STATUS_OK;
1033                 }
1034
1035                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1036                         "key from server %s for domain %s. Error was %s\n",
1037                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1038                 cli_shutdown(cli);
1039                 return status;
1040         }
1041
1042         if (!lp_client_schannel()) {
1043                 cli_shutdown(cli);
1044                 return NT_STATUS_OK;
1045         }
1046
1047         pipe_hnd = cli_rpc_pipe_open_schannel_with_key(cli, PI_NETLOGON,
1048                                                        PIPE_AUTH_LEVEL_PRIVACY,
1049                                                        netbios_domain_name,
1050                                                        netlogon_pipe->dc,
1051                                                        &status);
1052
1053         cli_shutdown(cli);
1054
1055         if (!pipe_hnd) {
1056                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1057                         "on netlogon pipe to server %s for domain %s. "
1058                         "Error was %s\n",
1059                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1060                 return status;
1061         }
1062
1063         return NT_STATUS_OK;
1064 }
1065
1066 /****************************************************************
1067 ****************************************************************/
1068
1069 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1070                                       struct libnet_JoinCtx *r)
1071 {
1072         NTSTATUS status;
1073
1074         status = libnet_join_ok(r->out.netbios_domain_name,
1075                                 r->in.machine_name,
1076                                 r->in.dc_name);
1077         if (!NT_STATUS_IS_OK(status)) {
1078                 libnet_join_set_error_string(mem_ctx, r,
1079                         "failed to verify domain membership after joining: %s",
1080                         get_friendly_nt_error_msg(status));
1081                 return WERR_SETUP_NOT_JOINED;
1082         }
1083
1084         return WERR_OK;
1085 }
1086
1087 /****************************************************************
1088 ****************************************************************/
1089
1090 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1091                                                     struct libnet_UnjoinCtx *r)
1092 {
1093         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1094                 return false;
1095         }
1096
1097         if (!secrets_delete_domain_sid(lp_workgroup())) {
1098                 return false;
1099         }
1100
1101         return true;
1102 }
1103
1104 /****************************************************************
1105 ****************************************************************/
1106
1107 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1108                                              struct libnet_UnjoinCtx *r)
1109 {
1110         struct cli_state *cli = NULL;
1111         struct rpc_pipe_client *pipe_hnd = NULL;
1112         POLICY_HND sam_pol, domain_pol, user_pol;
1113         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1114         char *acct_name;
1115         uint32_t user_rid;
1116         struct lsa_String lsa_acct_name;
1117         struct samr_Ids user_rids;
1118         struct samr_Ids name_types;
1119         union samr_UserInfo *info = NULL;
1120
1121         ZERO_STRUCT(sam_pol);
1122         ZERO_STRUCT(domain_pol);
1123         ZERO_STRUCT(user_pol);
1124
1125         status = cli_full_connection(&cli, NULL,
1126                                      r->in.dc_name,
1127                                      NULL, 0,
1128                                      "IPC$", "IPC",
1129                                      r->in.admin_account,
1130                                      NULL,
1131                                      r->in.admin_password,
1132                                      0, Undefined, NULL);
1133
1134         if (!NT_STATUS_IS_OK(status)) {
1135                 goto done;
1136         }
1137
1138         /* Open the domain */
1139
1140         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1141                                           &pipe_hnd);
1142         if (!NT_STATUS_IS_OK(status)) {
1143                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1144                         nt_errstr(status)));
1145                 goto done;
1146         }
1147
1148         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1149                                       pipe_hnd->desthost,
1150                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1151                                       &sam_pol);
1152         if (!NT_STATUS_IS_OK(status)) {
1153                 goto done;
1154         }
1155
1156         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1157                                         &sam_pol,
1158                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
1159                                         r->in.domain_sid,
1160                                         &domain_pol);
1161         if (!NT_STATUS_IS_OK(status)) {
1162                 goto done;
1163         }
1164
1165         /* Create domain user */
1166
1167         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1168         strlower_m(acct_name);
1169
1170         init_lsa_String(&lsa_acct_name, acct_name);
1171
1172         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1173                                          &domain_pol,
1174                                          1,
1175                                          &lsa_acct_name,
1176                                          &user_rids,
1177                                          &name_types);
1178
1179         if (!NT_STATUS_IS_OK(status)) {
1180                 goto done;
1181         }
1182
1183         if (name_types.ids[0] != SID_NAME_USER) {
1184                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1185                         name_types.ids[0]));
1186                 status = NT_STATUS_INVALID_WORKSTATION;
1187                 goto done;
1188         }
1189
1190         user_rid = user_rids.ids[0];
1191
1192         /* Open handle on user */
1193
1194         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1195                                       &domain_pol,
1196                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1197                                       user_rid,
1198                                       &user_pol);
1199         if (!NT_STATUS_IS_OK(status)) {
1200                 goto done;
1201         }
1202
1203         /* Get user info */
1204
1205         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1206                                            &user_pol,
1207                                            16,
1208                                            &info);
1209         if (!NT_STATUS_IS_OK(status)) {
1210                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1211                 goto done;
1212         }
1213
1214         /* now disable and setuser info */
1215
1216         info->info16.acct_flags |= ACB_DISABLED;
1217
1218         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1219                                          &user_pol,
1220                                          16,
1221                                          info);
1222
1223         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1224
1225 done:
1226         if (pipe_hnd) {
1227                 if (is_valid_policy_hnd(&domain_pol)) {
1228                         rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1229                 }
1230                 if (is_valid_policy_hnd(&sam_pol)) {
1231                         rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1232                 }
1233                 TALLOC_FREE(pipe_hnd);
1234         }
1235
1236         if (cli) {
1237                 cli_shutdown(cli);
1238         }
1239
1240         return status;
1241 }
1242
1243 /****************************************************************
1244 ****************************************************************/
1245
1246 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1247 {
1248         WERROR werr;
1249         struct smbconf_ctx *ctx;
1250
1251         werr = smbconf_init_reg(r, &ctx, NULL);
1252         if (!W_ERROR_IS_OK(werr)) {
1253                 goto done;
1254         }
1255
1256         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1257
1258                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1259                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1260
1261                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1262                                                     r->in.domain_name);
1263
1264                 smbconf_delete_global_parameter(ctx, "realm");
1265                 goto done;
1266         }
1267
1268         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1269         W_ERROR_NOT_OK_GOTO_DONE(werr);
1270
1271         werr = smbconf_set_global_parameter(ctx, "workgroup",
1272                                             r->out.netbios_domain_name);
1273         W_ERROR_NOT_OK_GOTO_DONE(werr);
1274
1275         if (r->out.domain_is_ad) {
1276                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1277                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1278
1279                 werr = smbconf_set_global_parameter(ctx, "realm",
1280                                                     r->out.dns_domain_name);
1281                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1282         }
1283
1284  done:
1285         smbconf_shutdown(ctx);
1286         return werr;
1287 }
1288
1289 /****************************************************************
1290 ****************************************************************/
1291
1292 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1293 {
1294         WERROR werr = WERR_OK;
1295         struct smbconf_ctx *ctx;
1296
1297         werr = smbconf_init_reg(r, &ctx, NULL);
1298         if (!W_ERROR_IS_OK(werr)) {
1299                 goto done;
1300         }
1301
1302         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1303
1304                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1305                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1306
1307                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1308                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1309
1310                 smbconf_delete_global_parameter(ctx, "realm");
1311         }
1312
1313  done:
1314         smbconf_shutdown(ctx);
1315         return werr;
1316 }
1317
1318 /****************************************************************
1319 ****************************************************************/
1320
1321 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1322 {
1323         WERROR werr;
1324
1325         if (!W_ERROR_IS_OK(r->out.result)) {
1326                 return r->out.result;
1327         }
1328
1329         if (!r->in.modify_config) {
1330                 return WERR_OK;
1331         }
1332
1333         werr = do_join_modify_vals_config(r);
1334         if (!W_ERROR_IS_OK(werr)) {
1335                 return werr;
1336         }
1337
1338         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1339
1340         r->out.modified_config = true;
1341         r->out.result = werr;
1342
1343         return werr;
1344 }
1345
1346 /****************************************************************
1347 ****************************************************************/
1348
1349 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1350 {
1351         WERROR werr;
1352
1353         if (!W_ERROR_IS_OK(r->out.result)) {
1354                 return r->out.result;
1355         }
1356
1357         if (!r->in.modify_config) {
1358                 return WERR_OK;
1359         }
1360
1361         werr = do_unjoin_modify_vals_config(r);
1362         if (!W_ERROR_IS_OK(werr)) {
1363                 return werr;
1364         }
1365
1366         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1367
1368         r->out.modified_config = true;
1369         r->out.result = werr;
1370
1371         return werr;
1372 }
1373
1374 /****************************************************************
1375 ****************************************************************/
1376
1377 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1378                                    const char *domain_str,
1379                                    const char **domain_p,
1380                                    const char **dc_p)
1381 {
1382         char *domain = NULL;
1383         char *dc = NULL;
1384         const char *p = NULL;
1385
1386         if (!domain_str || !domain_p || !dc_p) {
1387                 return false;
1388         }
1389
1390         p = strchr_m(domain_str, '\\');
1391
1392         if (p != NULL) {
1393                 domain = talloc_strndup(mem_ctx, domain_str,
1394                                          PTR_DIFF(p, domain_str));
1395                 dc = talloc_strdup(mem_ctx, p+1);
1396                 if (!dc) {
1397                         return false;
1398                 }
1399         } else {
1400                 domain = talloc_strdup(mem_ctx, domain_str);
1401                 dc = NULL;
1402         }
1403         if (!domain) {
1404                 return false;
1405         }
1406
1407         *domain_p = domain;
1408
1409         if (!*dc_p && dc) {
1410                 *dc_p = dc;
1411         }
1412
1413         return true;
1414 }
1415
1416 /****************************************************************
1417 ****************************************************************/
1418
1419 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1420                                          struct libnet_JoinCtx *r)
1421 {
1422         if (!r->in.domain_name) {
1423                 libnet_join_set_error_string(mem_ctx, r,
1424                         "No domain name defined");
1425                 return WERR_INVALID_PARAM;
1426         }
1427
1428         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1429                                     &r->in.domain_name,
1430                                     &r->in.dc_name)) {
1431                 libnet_join_set_error_string(mem_ctx, r,
1432                         "Failed to parse domain name");
1433                 return WERR_INVALID_PARAM;
1434         }
1435
1436         if (IS_DC) {
1437                 return WERR_SETUP_DOMAIN_CONTROLLER;
1438         }
1439
1440         if (!secrets_init()) {
1441                 libnet_join_set_error_string(mem_ctx, r,
1442                         "Unable to open secrets database");
1443                 return WERR_CAN_NOT_COMPLETE;
1444         }
1445
1446         return WERR_OK;
1447 }
1448
1449 /****************************************************************
1450 ****************************************************************/
1451
1452 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1453                                           struct libnet_JoinCtx *r)
1454 {
1455         WERROR werr;
1456
1457         if (!W_ERROR_IS_OK(r->out.result)) {
1458                 return r->out.result;
1459         }
1460
1461         werr = do_JoinConfig(r);
1462         if (!W_ERROR_IS_OK(werr)) {
1463                 return werr;
1464         }
1465
1466         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1467                 saf_store(r->in.domain_name, r->in.dc_name);
1468         }
1469
1470         return WERR_OK;
1471 }
1472
1473 /****************************************************************
1474 ****************************************************************/
1475
1476 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1477 {
1478         const char *krb5_cc_env = NULL;
1479
1480         if (r->in.ads) {
1481                 ads_destroy(&r->in.ads);
1482         }
1483
1484         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1485         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1486                 unsetenv(KRB5_ENV_CCNAME);
1487         }
1488
1489         return 0;
1490 }
1491
1492 /****************************************************************
1493 ****************************************************************/
1494
1495 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1496 {
1497         const char *krb5_cc_env = NULL;
1498
1499         if (r->in.ads) {
1500                 ads_destroy(&r->in.ads);
1501         }
1502
1503         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1504         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1505                 unsetenv(KRB5_ENV_CCNAME);
1506         }
1507
1508         return 0;
1509 }
1510
1511 /****************************************************************
1512 ****************************************************************/
1513
1514 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1515                            struct libnet_JoinCtx **r)
1516 {
1517         struct libnet_JoinCtx *ctx;
1518         const char *krb5_cc_env = NULL;
1519
1520         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1521         if (!ctx) {
1522                 return WERR_NOMEM;
1523         }
1524
1525         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1526
1527         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1528         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1529
1530         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1531         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1532                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1533                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1534                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1535         }
1536
1537         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1538
1539         *r = ctx;
1540
1541         return WERR_OK;
1542 }
1543
1544 /****************************************************************
1545 ****************************************************************/
1546
1547 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1548                              struct libnet_UnjoinCtx **r)
1549 {
1550         struct libnet_UnjoinCtx *ctx;
1551         const char *krb5_cc_env = NULL;
1552
1553         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1554         if (!ctx) {
1555                 return WERR_NOMEM;
1556         }
1557
1558         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1559
1560         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1561         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1562
1563         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1564         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1565                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1566                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1567                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1568         }
1569
1570         *r = ctx;
1571
1572         return WERR_OK;
1573 }
1574
1575 /****************************************************************
1576 ****************************************************************/
1577
1578 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1579                                        struct libnet_JoinCtx *r)
1580 {
1581         /* check if configuration is already set correctly */
1582
1583         switch (r->out.domain_is_ad) {
1584                 case false:
1585                         if ((strequal(lp_workgroup(),
1586                                       r->out.netbios_domain_name)) &&
1587                             (lp_security() == SEC_DOMAIN)) {
1588                                 /* nothing to be done */
1589                                 return WERR_OK;
1590                         }
1591                         break;
1592                 case true:
1593                         if ((strequal(lp_workgroup(),
1594                                       r->out.netbios_domain_name)) &&
1595                             (strequal(lp_realm(),
1596                                       r->out.dns_domain_name)) &&
1597                             ((lp_security() == SEC_ADS) ||
1598                              (lp_security() == SEC_DOMAIN))) {
1599                                 /* nothing to be done */
1600                                 return WERR_OK;
1601                         }
1602                         break;
1603         }
1604
1605         /* check if we are supposed to manipulate configuration */
1606
1607         if (!r->in.modify_config) {
1608                 libnet_join_set_error_string(mem_ctx, r,
1609                         "Invalid configuration and configuration modification "
1610                         "was not requested");
1611                 return WERR_CAN_NOT_COMPLETE;
1612         }
1613
1614         /* check if we are able to manipulate configuration */
1615
1616         if (!lp_config_backend_is_registry()) {
1617                 libnet_join_set_error_string(mem_ctx, r,
1618                         "Configuration manipulation requested but not "
1619                         "supported by backend");
1620                 return WERR_NOT_SUPPORTED;
1621         }
1622
1623         return WERR_OK;
1624 }
1625
1626 /****************************************************************
1627 ****************************************************************/
1628
1629 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1630                                 struct libnet_JoinCtx *r)
1631 {
1632         NTSTATUS status;
1633         WERROR werr;
1634         struct cli_state *cli = NULL;
1635 #ifdef WITH_ADS
1636         ADS_STATUS ads_status;
1637 #endif /* WITH_ADS */
1638
1639         if (!r->in.dc_name) {
1640                 struct netr_DsRGetDCNameInfo *info;
1641                 const char *dc;
1642                 status = dsgetdcname(mem_ctx,
1643                                      r->in.msg_ctx,
1644                                      r->in.domain_name,
1645                                      NULL,
1646                                      NULL,
1647                                      DS_DIRECTORY_SERVICE_REQUIRED |
1648                                      DS_WRITABLE_REQUIRED |
1649                                      DS_RETURN_DNS_NAME,
1650                                      &info);
1651                 if (!NT_STATUS_IS_OK(status)) {
1652                         libnet_join_set_error_string(mem_ctx, r,
1653                                 "failed to find DC for domain %s",
1654                                 r->in.domain_name,
1655                                 get_friendly_nt_error_msg(status));
1656                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1657                 }
1658
1659                 dc = strip_hostname(info->dc_unc);
1660                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1661                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1662         }
1663
1664         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1665         if (!NT_STATUS_IS_OK(status)) {
1666                 libnet_join_set_error_string(mem_ctx, r,
1667                         "failed to lookup DC info for domain '%s' over rpc: %s",
1668                         r->in.domain_name, get_friendly_nt_error_msg(status));
1669                 return ntstatus_to_werror(status);
1670         }
1671
1672         werr = libnet_join_check_config(mem_ctx, r);
1673         if (!W_ERROR_IS_OK(werr)) {
1674                 goto done;
1675         }
1676
1677 #ifdef WITH_ADS
1678         if (r->out.domain_is_ad && r->in.account_ou) {
1679
1680                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1681                 if (!ADS_ERR_OK(ads_status)) {
1682                         return WERR_DEFAULT_JOIN_REQUIRED;
1683                 }
1684
1685                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1686                 if (!ADS_ERR_OK(ads_status)) {
1687                         libnet_join_set_error_string(mem_ctx, r,
1688                                 "failed to precreate account in ou %s: %s",
1689                                 r->in.account_ou,
1690                                 ads_errstr(ads_status));
1691                         return WERR_DEFAULT_JOIN_REQUIRED;
1692                 }
1693
1694                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1695         }
1696 #endif /* WITH_ADS */
1697
1698         status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
1699         if (!NT_STATUS_IS_OK(status)) {
1700                 libnet_join_set_error_string(mem_ctx, r,
1701                         "failed to join domain '%s' over rpc: %s",
1702                         r->in.domain_name, get_friendly_nt_error_msg(status));
1703                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1704                         return WERR_SETUP_ALREADY_JOINED;
1705                 }
1706                 werr = ntstatus_to_werror(status);
1707                 goto done;
1708         }
1709
1710         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1711                 werr = WERR_SETUP_NOT_JOINED;
1712                 goto done;
1713         }
1714
1715 #ifdef WITH_ADS
1716         if (r->out.domain_is_ad) {
1717                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1718                 if (!ADS_ERR_OK(ads_status)) {
1719                         werr = WERR_GENERAL_FAILURE;
1720                         goto done;
1721                 }
1722         }
1723 #endif /* WITH_ADS */
1724
1725         werr = WERR_OK;
1726
1727  done:
1728         if (cli) {
1729                 cli_shutdown(cli);
1730         }
1731
1732         return werr;
1733 }
1734
1735 /****************************************************************
1736 ****************************************************************/
1737
1738 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
1739                                    struct libnet_JoinCtx *r)
1740 {
1741         WERROR werr;
1742         struct libnet_UnjoinCtx *u = NULL;
1743
1744         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
1745         if (!W_ERROR_IS_OK(werr)) {
1746                 return werr;
1747         }
1748
1749         u->in.debug             = r->in.debug;
1750         u->in.dc_name           = r->in.dc_name;
1751         u->in.domain_name       = r->in.domain_name;
1752         u->in.admin_account     = r->in.admin_account;
1753         u->in.admin_password    = r->in.admin_password;
1754         u->in.modify_config     = r->in.modify_config;
1755         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
1756                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
1757
1758         werr = libnet_Unjoin(mem_ctx, u);
1759         TALLOC_FREE(u);
1760
1761         return werr;
1762 }
1763
1764 /****************************************************************
1765 ****************************************************************/
1766
1767 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1768                    struct libnet_JoinCtx *r)
1769 {
1770         WERROR werr;
1771
1772         if (r->in.debug) {
1773                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1774         }
1775
1776         werr = libnet_join_pre_processing(mem_ctx, r);
1777         if (!W_ERROR_IS_OK(werr)) {
1778                 goto done;
1779         }
1780
1781         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1782                 werr = libnet_DomainJoin(mem_ctx, r);
1783                 if (!W_ERROR_IS_OK(werr)) {
1784                         goto done;
1785                 }
1786         }
1787
1788         werr = libnet_join_post_processing(mem_ctx, r);
1789         if (!W_ERROR_IS_OK(werr)) {
1790                 goto done;
1791         }
1792
1793         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1794                 werr = libnet_join_post_verify(mem_ctx, r);
1795                 if (!W_ERROR_IS_OK(werr)) {
1796                         libnet_join_rollback(mem_ctx, r);
1797                 }
1798         }
1799
1800  done:
1801         r->out.result = werr;
1802
1803         if (r->in.debug) {
1804                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1805         }
1806         return werr;
1807 }
1808
1809 /****************************************************************
1810 ****************************************************************/
1811
1812 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1813                                   struct libnet_UnjoinCtx *r)
1814 {
1815         NTSTATUS status;
1816
1817         if (!r->in.domain_sid) {
1818                 struct dom_sid sid;
1819                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1820                         libnet_unjoin_set_error_string(mem_ctx, r,
1821                                 "Unable to fetch domain sid: are we joined?");
1822                         return WERR_SETUP_NOT_JOINED;
1823                 }
1824                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1825                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1826         }
1827
1828         if (!r->in.dc_name) {
1829                 struct netr_DsRGetDCNameInfo *info;
1830                 const char *dc;
1831                 status = dsgetdcname(mem_ctx,
1832                                      r->in.msg_ctx,
1833                                      r->in.domain_name,
1834                                      NULL,
1835                                      NULL,
1836                                      DS_DIRECTORY_SERVICE_REQUIRED |
1837                                      DS_WRITABLE_REQUIRED |
1838                                      DS_RETURN_DNS_NAME,
1839                                      &info);
1840                 if (!NT_STATUS_IS_OK(status)) {
1841                         libnet_unjoin_set_error_string(mem_ctx, r,
1842                                 "failed to find DC for domain %s",
1843                                 r->in.domain_name,
1844                                 get_friendly_nt_error_msg(status));
1845                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1846                 }
1847
1848                 dc = strip_hostname(info->dc_unc);
1849                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1850                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1851         }
1852
1853         status = libnet_join_unjoindomain_rpc(mem_ctx, r);
1854         if (!NT_STATUS_IS_OK(status)) {
1855                 libnet_unjoin_set_error_string(mem_ctx, r,
1856                         "failed to disable machine account via rpc: %s",
1857                         get_friendly_nt_error_msg(status));
1858                 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1859                         return WERR_SETUP_NOT_JOINED;
1860                 }
1861                 return ntstatus_to_werror(status);
1862         }
1863
1864         r->out.disabled_machine_account = true;
1865
1866 #ifdef WITH_ADS
1867         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
1868                 ADS_STATUS ads_status;
1869                 libnet_unjoin_connect_ads(mem_ctx, r);
1870                 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
1871                 if (!ADS_ERR_OK(ads_status)) {
1872                         libnet_unjoin_set_error_string(mem_ctx, r,
1873                                 "failed to remove machine account from AD: %s",
1874                                 ads_errstr(ads_status));
1875                 } else {
1876                         r->out.deleted_machine_account = true;
1877                         /* dirty hack */
1878                         r->out.dns_domain_name = talloc_strdup(mem_ctx,
1879                                                                r->in.ads->server.realm);
1880                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
1881                 }
1882         }
1883 #endif /* WITH_ADS */
1884
1885         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
1886
1887         return WERR_OK;
1888 }
1889
1890 /****************************************************************
1891 ****************************************************************/
1892
1893 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
1894                                            struct libnet_UnjoinCtx *r)
1895 {
1896         if (!r->in.domain_name) {
1897                 libnet_unjoin_set_error_string(mem_ctx, r,
1898                         "No domain name defined");
1899                 return WERR_INVALID_PARAM;
1900         }
1901
1902         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1903                                     &r->in.domain_name,
1904                                     &r->in.dc_name)) {
1905                 libnet_unjoin_set_error_string(mem_ctx, r,
1906                         "Failed to parse domain name");
1907                 return WERR_INVALID_PARAM;
1908         }
1909
1910         if (IS_DC) {
1911                 return WERR_SETUP_DOMAIN_CONTROLLER;
1912         }
1913
1914         if (!secrets_init()) {
1915                 libnet_unjoin_set_error_string(mem_ctx, r,
1916                         "Unable to open secrets database");
1917                 return WERR_CAN_NOT_COMPLETE;
1918         }
1919
1920         return WERR_OK;
1921 }
1922
1923 /****************************************************************
1924 ****************************************************************/
1925
1926 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
1927                                             struct libnet_UnjoinCtx *r)
1928 {
1929         saf_delete(r->out.netbios_domain_name);
1930         saf_delete(r->out.dns_domain_name);
1931
1932         return libnet_unjoin_config(r);
1933 }
1934
1935 /****************************************************************
1936 ****************************************************************/
1937
1938 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
1939                      struct libnet_UnjoinCtx *r)
1940 {
1941         WERROR werr;
1942
1943         if (r->in.debug) {
1944                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
1945         }
1946
1947         werr = libnet_unjoin_pre_processing(mem_ctx, r);
1948         if (!W_ERROR_IS_OK(werr)) {
1949                 goto done;
1950         }
1951
1952         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1953                 werr = libnet_DomainUnjoin(mem_ctx, r);
1954                 if (!W_ERROR_IS_OK(werr)) {
1955                         libnet_unjoin_config(r);
1956                         goto done;
1957                 }
1958         }
1959
1960         werr = libnet_unjoin_post_processing(mem_ctx, r);
1961         if (!W_ERROR_IS_OK(werr)) {
1962                 goto done;
1963         }
1964
1965  done:
1966         r->out.result = werr;
1967
1968         if (r->in.debug) {
1969                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
1970         }
1971
1972         return werr;
1973 }