source3/libnet/libnet_join.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  libnet Join Support
   4  *  Copyright (C) Gerald (Jerry) Carter 2006
   5  *  Copyright (C) Guenther Deschner 2007-2008
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22 #include "ads.h"
  23 #include "librpc/gen_ndr/ndr_libnet_join.h"
  24 #include "libnet/libnet_join.h"
  25 #include "libcli/auth/libcli_auth.h"
  26 #include "../librpc/gen_ndr/ndr_samr_c.h"
  27 #include "rpc_client/init_samr.h"
  28 #include "../librpc/gen_ndr/ndr_lsa_c.h"
  29 #include "rpc_client/cli_lsarpc.h"
  30 #include "../librpc/gen_ndr/ndr_netlogon.h"
  31 #include "rpc_client/cli_netlogon.h"
  32 #include "lib/smbconf/smbconf.h"
  33 #include "lib/smbconf/smbconf_reg.h"
  34 #include "../libds/common/flags.h"
  35 #include "secrets.h"
  36 #include "rpc_client/init_lsa.h"
  37 #include "krb5_env.h"
  38 #include "../libcli/security/security.h"
  39
  40 /****************************************************************
  41 ****************************************************************/
  42
  43 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  44         do { \
  45                 char *str = NULL; \
  46                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  47                 DEBUG(1,("libnet_Join:\n%s", str)); \
  48                 TALLOC_FREE(str); \
  49         } while (0)
  50
  51 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  52         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  53 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  54         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  55
  56 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  57         do { \
  58                 char *str = NULL; \
  59                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  60                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  61                 TALLOC_FREE(str); \
  62         } while (0)
  63
  64 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  65         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  66 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  67         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  68
  69 /****************************************************************
  70 ****************************************************************/
  71
  72 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  73                                          struct libnet_JoinCtx *r,
  74                                          const char *format, ...)
  75 {
  76         va_list args;
  77
  78         if (r->out.error_string) {
  79                 return;
  80         }
  81
  82         va_start(args, format);
  83         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  84         va_end(args);
  85 }
  86
  87 /****************************************************************
  88 ****************************************************************/
  89
  90 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  91                                            struct libnet_UnjoinCtx *r,
  92                                            const char *format, ...)
  93 {
  94         va_list args;
  95
  96         if (r->out.error_string) {
  97                 return;
  98         }
  99
 100         va_start(args, format);
 101         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
 102         va_end(args);
 103 }
 104
 105 #ifdef HAVE_ADS
 106
 107 /****************************************************************
 108 ****************************************************************/
 109
 110 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 111                                      const char *netbios_domain_name,
 112                                      const char *dc_name,
 113                                      const char *user_name,
 114                                      const char *password,
 115                                      ADS_STRUCT **ads)
 116 {
 117         ADS_STATUS status;
 118         ADS_STRUCT *my_ads = NULL;
 119         char *cp;
 120
 121         my_ads = ads_init(dns_domain_name,
 122                           netbios_domain_name,
 123                           dc_name);
 124         if (!my_ads) {
 125                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 126         }
 127
 128         if (user_name) {
 129                 SAFE_FREE(my_ads->auth.user_name);
 130                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 131                 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
 132                         *cp++ = '\0';
 133                         SAFE_FREE(my_ads->auth.realm);
 134                         my_ads->auth.realm = smb_xstrdup(cp);
 135                         strupper_m(my_ads->auth.realm);
 136                 }
 137         }
 138
 139         if (password) {
 140                 SAFE_FREE(my_ads->auth.password);
 141                 my_ads->auth.password = SMB_STRDUP(password);
 142         }
 143
 144         status = ads_connect_user_creds(my_ads);
 145         if (!ADS_ERR_OK(status)) {
 146                 ads_destroy(&my_ads);
 147                 return status;
 148         }
 149
 150         *ads = my_ads;
 151         return ADS_SUCCESS;
 152 }
 153
 154 /****************************************************************
 155 ****************************************************************/
 156
 157 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 158                                           struct libnet_JoinCtx *r)
 159 {
 160         ADS_STATUS status;
 161
 162         status = libnet_connect_ads(r->out.dns_domain_name,
 163                                     r->out.netbios_domain_name,
 164                                     r->in.dc_name,
 165                                     r->in.admin_account,
 166                                     r->in.admin_password,
 167                                     &r->in.ads);
 168         if (!ADS_ERR_OK(status)) {
 169                 libnet_join_set_error_string(mem_ctx, r,
 170                         "failed to connect to AD: %s",
 171                         ads_errstr(status));
 172                 return status;
 173         }
 174
 175         if (!r->out.netbios_domain_name) {
 176                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 177                                                            r->in.ads->server.workgroup);
 178                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 179         }
 180
 181         if (!r->out.dns_domain_name) {
 182                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 183                                                        r->in.ads->config.realm);
 184                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 185         }
 186
 187         r->out.domain_is_ad = true;
 188
 189         return ADS_SUCCESS;
 190 }
 191
 192 /****************************************************************
 193 ****************************************************************/
 194
 195 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 196                                             struct libnet_UnjoinCtx *r)
 197 {
 198         ADS_STATUS status;
 199
 200         status = libnet_connect_ads(r->in.domain_name,
 201                                     r->in.domain_name,
 202                                     r->in.dc_name,
 203                                     r->in.admin_account,
 204                                     r->in.admin_password,
 205                                     &r->in.ads);
 206         if (!ADS_ERR_OK(status)) {
 207                 libnet_unjoin_set_error_string(mem_ctx, r,
 208                         "failed to connect to AD: %s",
 209                         ads_errstr(status));
 210         }
 211
 212         return status;
 213 }
 214
 215 /****************************************************************
 216  join a domain using ADS (LDAP mods)
 217 ****************************************************************/
 218
 219 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 220                                                      struct libnet_JoinCtx *r)
 221 {
 222         ADS_STATUS status;
 223         LDAPMessage *res = NULL;
 224         const char *attrs[] = { "dn", NULL };
 225         bool moved = false;
 226
 227         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 228         if (!ADS_ERR_OK(status)) {
 229                 return status;
 230         }
 231
 232         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 233         if (!ADS_ERR_OK(status)) {
 234                 return status;
 235         }
 236
 237         if (ads_count_replies(r->in.ads, res) != 1) {
 238                 ads_msgfree(r->in.ads, res);
 239                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 240         }
 241
 242         ads_msgfree(r->in.ads, res);
 243
 244         /* Attempt to create the machine account and bail if this fails.
 245            Assume that the admin wants exactly what they requested */
 246
 247         status = ads_create_machine_acct(r->in.ads,
 248                                          r->in.machine_name,
 249                                          r->in.account_ou);
 250
 251         if (ADS_ERR_OK(status)) {
 252                 DEBUG(1,("machine account creation created\n"));
 253                 return status;
 254         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 255                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 256                 status = ADS_SUCCESS;
 257         }
 258
 259         if (!ADS_ERR_OK(status)) {
 260                 DEBUG(1,("machine account creation failed\n"));
 261                 return status;
 262         }
 263
 264         status = ads_move_machine_acct(r->in.ads,
 265                                        r->in.machine_name,
 266                                        r->in.account_ou,
 267                                        &moved);
 268         if (!ADS_ERR_OK(status)) {
 269                 DEBUG(1,("failure to locate/move pre-existing "
 270                         "machine account\n"));
 271                 return status;
 272         }
 273
 274         DEBUG(1,("The machine account %s the specified OU.\n",
 275                 moved ? "was moved into" : "already exists in"));
 276
 277         return status;
 278 }
 279
 280 /****************************************************************
 281 ****************************************************************/
 282
 283 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 284                                                     struct libnet_UnjoinCtx *r)
 285 {
 286         ADS_STATUS status;
 287
 288         if (!r->in.ads) {
 289                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 290                 if (!ADS_ERR_OK(status)) {
 291                         libnet_unjoin_set_error_string(mem_ctx, r,
 292                                 "failed to connect to AD: %s",
 293                                 ads_errstr(status));
 294                         return status;
 295                 }
 296         }
 297
 298         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 299         if (!ADS_ERR_OK(status)) {
 300                 libnet_unjoin_set_error_string(mem_ctx, r,
 301                         "failed to leave realm: %s",
 302                         ads_errstr(status));
 303                 return status;
 304         }
 305
 306         return ADS_SUCCESS;
 307 }
 308
 309 /****************************************************************
 310 ****************************************************************/
 311
 312 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 313                                                 struct libnet_JoinCtx *r)
 314 {
 315         ADS_STATUS status;
 316         LDAPMessage *res = NULL;
 317         char *dn = NULL;
 318
 319         if (!r->in.machine_name) {
 320                 return ADS_ERROR(LDAP_NO_MEMORY);
 321         }
 322
 323         status = ads_find_machine_acct(r->in.ads,
 324                                        &res,
 325                                        r->in.machine_name);
 326         if (!ADS_ERR_OK(status)) {
 327                 return status;
 328         }
 329
 330         if (ads_count_replies(r->in.ads, res) != 1) {
 331                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 332                 goto done;
 333         }
 334
 335         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 336         if (!dn) {
 337                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 338                 goto done;
 339         }
 340
 341         r->out.dn = talloc_strdup(mem_ctx, dn);
 342         if (!r->out.dn) {
 343                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 344                 goto done;
 345         }
 346
 347  done:
 348         ads_msgfree(r->in.ads, res);
 349         TALLOC_FREE(dn);
 350
 351         return status;
 352 }
 353
 354 /****************************************************************
 355  Set a machines dNSHostName and servicePrincipalName attributes
 356 ****************************************************************/
 357
 358 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 359                                               struct libnet_JoinCtx *r)
 360 {
 361         ADS_STATUS status;
 362         ADS_MODLIST mods;
 363         fstring my_fqdn;
 364         const char *spn_array[3] = {NULL, NULL, NULL};
 365         char *spn = NULL;
 366
 367         /* Find our DN */
 368
 369         status = libnet_join_find_machine_acct(mem_ctx, r);
 370         if (!ADS_ERR_OK(status)) {
 371                 return status;
 372         }
 373
 374         /* Windows only creates HOST/shortname & HOST/fqdn. */
 375
 376         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 377         if (!spn) {
 378                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 379         }
 380         strupper_m(spn);
 381         spn_array[0] = spn;
 382
 383         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 384             || (strchr(my_fqdn, '.') == NULL)) {
 385                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 386                              r->out.dns_domain_name);
 387         }
 388
 389         strlower_m(my_fqdn);
 390
 391         if (!strequal(my_fqdn, r->in.machine_name)) {
 392                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 393                 if (!spn) {
 394                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 395                 }
 396                 spn_array[1] = spn;
 397         }
 398
 399         mods = ads_init_mods(mem_ctx);
 400         if (!mods) {
 401                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 402         }
 403
 404         /* fields of primary importance */
 405
 406         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 407         if (!ADS_ERR_OK(status)) {
 408                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 409         }
 410
 411         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 412                                  spn_array);
 413         if (!ADS_ERR_OK(status)) {
 414                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 415         }
 416
 417         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 418 }
 419
 420 /****************************************************************
 421 ****************************************************************/
 422
 423 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 424                                               struct libnet_JoinCtx *r)
 425 {
 426         ADS_STATUS status;
 427         ADS_MODLIST mods;
 428
 429         if (!r->in.create_upn) {
 430                 return ADS_SUCCESS;
 431         }
 432
 433         /* Find our DN */
 434
 435         status = libnet_join_find_machine_acct(mem_ctx, r);
 436         if (!ADS_ERR_OK(status)) {
 437                 return status;
 438         }
 439
 440         if (!r->in.upn) {
 441                 r->in.upn = talloc_asprintf(mem_ctx,
 442                                             "host/%s@%s",
 443                                             r->in.machine_name,
 444                                             r->out.dns_domain_name);
 445                 if (!r->in.upn) {
 446                         return ADS_ERROR(LDAP_NO_MEMORY);
 447                 }
 448         }
 449
 450         /* now do the mods */
 451
 452         mods = ads_init_mods(mem_ctx);
 453         if (!mods) {
 454                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 455         }
 456
 457         /* fields of primary importance */
 458
 459         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 460         if (!ADS_ERR_OK(status)) {
 461                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 462         }
 463
 464         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 465 }
 466
 467
 468 /****************************************************************
 469 ****************************************************************/
 470
 471 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 472                                                 struct libnet_JoinCtx *r)
 473 {
 474         ADS_STATUS status;
 475         ADS_MODLIST mods;
 476         char *os_sp = NULL;
 477
 478         if (!r->in.os_name || !r->in.os_version ) {
 479                 return ADS_SUCCESS;
 480         }
 481
 482         /* Find our DN */
 483
 484         status = libnet_join_find_machine_acct(mem_ctx, r);
 485         if (!ADS_ERR_OK(status)) {
 486                 return status;
 487         }
 488
 489         /* now do the mods */
 490
 491         mods = ads_init_mods(mem_ctx);
 492         if (!mods) {
 493                 return ADS_ERROR(LDAP_NO_MEMORY);
 494         }
 495
 496         os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
 497         if (!os_sp) {
 498                 return ADS_ERROR(LDAP_NO_MEMORY);
 499         }
 500
 501         /* fields of primary importance */
 502
 503         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 504                              r->in.os_name);
 505         if (!ADS_ERR_OK(status)) {
 506                 return status;
 507         }
 508
 509         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 510                              r->in.os_version);
 511         if (!ADS_ERR_OK(status)) {
 512                 return status;
 513         }
 514
 515         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 516                              os_sp);
 517         if (!ADS_ERR_OK(status)) {
 518                 return status;
 519         }
 520
 521         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 522 }
 523
 524 /****************************************************************
 525 ****************************************************************/
 526
 527 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 528                                       struct libnet_JoinCtx *r)
 529 {
 530         if (!USE_SYSTEM_KEYTAB) {
 531                 return true;
 532         }
 533
 534         if (ads_keytab_create_default(r->in.ads) != 0) {
 535                 return false;
 536         }
 537
 538         return true;
 539 }
 540
 541 /****************************************************************
 542 ****************************************************************/
 543
 544 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 545                                                  struct libnet_JoinCtx *r)
 546 {
 547         uint32_t domain_func;
 548         ADS_STATUS status;
 549         const char *salt = NULL;
 550         char *std_salt = NULL;
 551
 552         status = ads_domain_func_level(r->in.ads, &domain_func);
 553         if (!ADS_ERR_OK(status)) {
 554                 libnet_join_set_error_string(mem_ctx, r,
 555                         "failed to determine domain functional level: %s",
 556                         ads_errstr(status));
 557                 return false;
 558         }
 559
 560         /* go ahead and setup the default salt */
 561
 562         std_salt = kerberos_standard_des_salt();
 563         if (!std_salt) {
 564                 libnet_join_set_error_string(mem_ctx, r,
 565                         "failed to obtain standard DES salt");
 566                 return false;
 567         }
 568
 569         salt = talloc_strdup(mem_ctx, std_salt);
 570         if (!salt) {
 571                 return false;
 572         }
 573
 574         SAFE_FREE(std_salt);
 575
 576         /* if it's a Windows functional domain, we have to look for the UPN */
 577
 578         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 579                 char *upn;
 580
 581                 upn = ads_get_upn(r->in.ads, mem_ctx,
 582                                   r->in.machine_name);
 583                 if (upn) {
 584                         salt = talloc_strdup(mem_ctx, upn);
 585                         if (!salt) {
 586                                 return false;
 587                         }
 588                 }
 589         }
 590
 591         return kerberos_secrets_store_des_salt(salt);
 592 }
 593
 594 /****************************************************************
 595 ****************************************************************/
 596
 597 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 598                                                   struct libnet_JoinCtx *r)
 599 {
 600         ADS_STATUS status;
 601
 602         if (!r->in.ads) {
 603                 status = libnet_join_connect_ads(mem_ctx, r);
 604                 if (!ADS_ERR_OK(status)) {
 605                         return status;
 606                 }
 607         }
 608
 609         status = libnet_join_set_machine_spn(mem_ctx, r);
 610         if (!ADS_ERR_OK(status)) {
 611                 libnet_join_set_error_string(mem_ctx, r,
 612                         "failed to set machine spn: %s",
 613                         ads_errstr(status));
 614                 return status;
 615         }
 616
 617         status = libnet_join_set_os_attributes(mem_ctx, r);
 618         if (!ADS_ERR_OK(status)) {
 619                 libnet_join_set_error_string(mem_ctx, r,
 620                         "failed to set machine os attributes: %s",
 621                         ads_errstr(status));
 622                 return status;
 623         }
 624
 625         status = libnet_join_set_machine_upn(mem_ctx, r);
 626         if (!ADS_ERR_OK(status)) {
 627                 libnet_join_set_error_string(mem_ctx, r,
 628                         "failed to set machine upn: %s",
 629                         ads_errstr(status));
 630                 return status;
 631         }
 632
 633         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 634                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 635         }
 636
 637         if (!libnet_join_create_keytab(mem_ctx, r)) {
 638                 libnet_join_set_error_string(mem_ctx, r,
 639                         "failed to create kerberos keytab");
 640                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 641         }
 642
 643         return ADS_SUCCESS;
 644 }
 645 #endif /* HAVE_ADS */
 646
 647 /****************************************************************
 648  Store the machine password and domain SID
 649 ****************************************************************/
 650
 651 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 652                                                  struct libnet_JoinCtx *r)
 653 {
 654         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 655                                       r->out.domain_sid))
 656         {
 657                 DEBUG(1,("Failed to save domain sid\n"));
 658                 return false;
 659         }
 660
 661         if (!secrets_store_machine_password(r->in.machine_password,
 662                                             r->out.netbios_domain_name,
 663                                             r->in.secure_channel_type))
 664         {
 665                 DEBUG(1,("Failed to save machine password\n"));
 666                 return false;
 667         }
 668
 669         return true;
 670 }
 671
 672 /****************************************************************
 673  Connect dc's IPC$ share
 674 ****************************************************************/
 675
 676 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 677                                            const char *user,
 678                                            const char *pass,
 679                                            bool use_kerberos,
 680                                            struct cli_state **cli)
 681 {
 682         int flags = 0;
 683
 684         if (use_kerberos) {
 685                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 686         }
 687
 688         if (use_kerberos && pass) {
 689                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 690         }
 691
 692         return cli_full_connection(cli, NULL,
 693                                    dc,
 694                                    NULL, 0,
 695                                    "IPC$", "IPC",
 696                                    user,
 697                                    NULL,
 698                                    pass,
 699                                    flags,
 700                                    Undefined);
 701 }
 702
 703 /****************************************************************
 704  Lookup domain dc's info
 705 ****************************************************************/
 706
 707 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 708                                           struct libnet_JoinCtx *r,
 709                                           struct cli_state **cli)
 710 {
 711         struct rpc_pipe_client *pipe_hnd = NULL;
 712         struct policy_handle lsa_pol;
 713         NTSTATUS status, result;
 714         union lsa_PolicyInformation *info = NULL;
 715         struct dcerpc_binding_handle *b;
 716
 717         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 718                                             r->in.admin_account,
 719                                             r->in.admin_password,
 720                                             r->in.use_kerberos,
 721                                             cli);
 722         if (!NT_STATUS_IS_OK(status)) {
 723                 goto done;
 724         }
 725
 726         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 727                                           &pipe_hnd);
 728         if (!NT_STATUS_IS_OK(status)) {
 729                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 730                         nt_errstr(status)));
 731                 goto done;
 732         }
 733
 734         b = pipe_hnd->binding_handle;
 735
 736         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 737                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 738         if (!NT_STATUS_IS_OK(status)) {
 739                 goto done;
 740         }
 741
 742         status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
 743                                              &lsa_pol,
 744                                              LSA_POLICY_INFO_DNS,
 745                                              &info,
 746                                              &result);
 747         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
 748                 r->out.domain_is_ad = true;
 749                 r->out.netbios_domain_name = info->dns.name.string;
 750                 r->out.dns_domain_name = info->dns.dns_domain.string;
 751                 r->out.forest_name = info->dns.dns_forest.string;
 752                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
 753                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 754         }
 755
 756         if (!NT_STATUS_IS_OK(status)) {
 757                 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
 758                                                     &lsa_pol,
 759                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 760                                                     &info,
 761                                                     &result);
 762                 if (!NT_STATUS_IS_OK(status)) {
 763                         goto done;
 764                 }
 765                 if (!NT_STATUS_IS_OK(result)) {
 766                         status = result;
 767                         goto done;
 768                 }
 769
 770                 r->out.netbios_domain_name = info->account_domain.name.string;
 771                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
 772                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 773         }
 774
 775         dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
 776         TALLOC_FREE(pipe_hnd);
 777
 778  done:
 779         return status;
 780 }
 781
 782 /****************************************************************
 783  Do the domain join unsecure
 784 ****************************************************************/
 785
 786 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 787                                                     struct libnet_JoinCtx *r,
 788                                                     struct cli_state *cli)
 789 {
 790         struct rpc_pipe_client *pipe_hnd = NULL;
 791         unsigned char orig_trust_passwd_hash[16];
 792         unsigned char new_trust_passwd_hash[16];
 793         fstring trust_passwd;
 794         NTSTATUS status;
 795
 796         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
 797                                           &pipe_hnd);
 798         if (!NT_STATUS_IS_OK(status)) {
 799                 return status;
 800         }
 801
 802         if (!r->in.machine_password) {
 803                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 804                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 805         }
 806
 807         E_md4hash(r->in.machine_password, new_trust_passwd_hash);
 808
 809         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 810         fstrcpy(trust_passwd, r->in.admin_password);
 811         strlower_m(trust_passwd);
 812
 813         /*
 814          * Machine names can be 15 characters, but the max length on
 815          * a password is 14.  --jerry
 816          */
 817
 818         trust_passwd[14] = '\0';
 819
 820         E_md4hash(trust_passwd, orig_trust_passwd_hash);
 821
 822         status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
 823                                                     r->in.machine_name,
 824                                                     orig_trust_passwd_hash,
 825                                                     r->in.machine_password,
 826                                                     new_trust_passwd_hash,
 827                                                     r->in.secure_channel_type);
 828
 829         return status;
 830 }
 831
 832 /****************************************************************
 833  Do the domain join
 834 ****************************************************************/
 835
 836 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 837                                            struct libnet_JoinCtx *r,
 838                                            struct cli_state *cli)
 839 {
 840         struct rpc_pipe_client *pipe_hnd = NULL;
 841         struct policy_handle sam_pol, domain_pol, user_pol;
 842         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
 843         char *acct_name;
 844         struct lsa_String lsa_acct_name;
 845         uint32_t user_rid;
 846         uint32_t acct_flags = ACB_WSTRUST;
 847         struct samr_Ids user_rids;
 848         struct samr_Ids name_types;
 849         union samr_UserInfo user_info;
 850         struct dcerpc_binding_handle *b = NULL;
 851
 852         struct samr_CryptPassword crypt_pwd;
 853         struct samr_CryptPasswordEx crypt_pwd_ex;
 854
 855         ZERO_STRUCT(sam_pol);
 856         ZERO_STRUCT(domain_pol);
 857         ZERO_STRUCT(user_pol);
 858
 859         switch (r->in.secure_channel_type) {
 860         case SEC_CHAN_WKSTA:
 861                 acct_flags = ACB_WSTRUST;
 862                 break;
 863         case SEC_CHAN_BDC:
 864                 acct_flags = ACB_SVRTRUST;
 865                 break;
 866         default:
 867                 return NT_STATUS_INVALID_PARAMETER;
 868         }
 869
 870         if (!r->in.machine_password) {
 871                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 872                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 873         }
 874
 875         /* Open the domain */
 876
 877         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 878                                           &pipe_hnd);
 879         if (!NT_STATUS_IS_OK(status)) {
 880                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 881                         nt_errstr(status)));
 882                 goto done;
 883         }
 884
 885         b = pipe_hnd->binding_handle;
 886
 887         status = dcerpc_samr_Connect2(b, mem_ctx,
 888                                       pipe_hnd->desthost,
 889                                       SAMR_ACCESS_ENUM_DOMAINS
 890                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
 891                                       &sam_pol,
 892                                       &result);
 893         if (!NT_STATUS_IS_OK(status)) {
 894                 goto done;
 895         }
 896         if (!NT_STATUS_IS_OK(result)) {
 897                 status = result;
 898                 goto done;
 899         }
 900
 901         status = dcerpc_samr_OpenDomain(b, mem_ctx,
 902                                         &sam_pol,
 903                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
 904                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
 905                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 906                                         r->out.domain_sid,
 907                                         &domain_pol,
 908                                         &result);
 909         if (!NT_STATUS_IS_OK(status)) {
 910                 goto done;
 911         }
 912         if (!NT_STATUS_IS_OK(result)) {
 913                 status = result;
 914                 goto done;
 915         }
 916
 917         /* Create domain user */
 918
 919         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 920         strlower_m(acct_name);
 921
 922         init_lsa_String(&lsa_acct_name, acct_name);
 923
 924         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 925                 uint32_t access_desired =
 926                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 927                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 928                         SAMR_USER_ACCESS_SET_PASSWORD |
 929                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 930                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 931                 uint32_t access_granted = 0;
 932
 933                 DEBUG(10,("Creating account with desired access mask: %d\n",
 934                         access_desired));
 935
 936                 status = dcerpc_samr_CreateUser2(b, mem_ctx,
 937                                                  &domain_pol,
 938                                                  &lsa_acct_name,
 939                                                  acct_flags,
 940                                                  access_desired,
 941                                                  &user_pol,
 942                                                  &access_granted,
 943                                                  &user_rid,
 944                                                  &result);
 945                 if (!NT_STATUS_IS_OK(status)) {
 946                         goto done;
 947                 }
 948
 949                 status = result;
 950                 if (!NT_STATUS_IS_OK(status) &&
 951                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 952
 953                         DEBUG(10,("Creation of workstation account failed: %s\n",
 954                                 nt_errstr(status)));
 955
 956                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 957                            username/password combo but the user does not have
 958                            administrator access. */
 959
 960                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 961                                 libnet_join_set_error_string(mem_ctx, r,
 962                                         "User specified does not have "
 963                                         "administrator privileges");
 964                         }
 965
 966                         goto done;
 967                 }
 968
 969                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 970                         if (!(r->in.join_flags &
 971                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 972                                 goto done;
 973                         }
 974                 }
 975
 976                 /* We *must* do this.... don't ask... */
 977
 978                 if (NT_STATUS_IS_OK(status)) {
 979                         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
 980                 }
 981         }
 982
 983         status = dcerpc_samr_LookupNames(b, mem_ctx,
 984                                          &domain_pol,
 985                                          1,
 986                                          &lsa_acct_name,
 987                                          &user_rids,
 988                                          &name_types,
 989                                          &result);
 990         if (!NT_STATUS_IS_OK(status)) {
 991                 goto done;
 992         }
 993         if (!NT_STATUS_IS_OK(result)) {
 994                 status = result;
 995                 goto done;
 996         }
 997
 998         if (name_types.ids[0] != SID_NAME_USER) {
 999                 DEBUG(0,("%s is not a user account (type=%d)\n",
1000                         acct_name, name_types.ids[0]));
1001                 status = NT_STATUS_INVALID_WORKSTATION;
1002                 goto done;
1003         }
1004
1005         user_rid = user_rids.ids[0];
1006
1007         /* Open handle on user */
1008
1009         status = dcerpc_samr_OpenUser(b, mem_ctx,
1010                                       &domain_pol,
1011                                       SEC_FLAG_MAXIMUM_ALLOWED,
1012                                       user_rid,
1013                                       &user_pol,
1014                                       &result);
1015         if (!NT_STATUS_IS_OK(status)) {
1016                 goto done;
1017         }
1018         if (!NT_STATUS_IS_OK(result)) {
1019                 status = result;
1020                 goto done;
1021         }
1022
1023         /* Fill in the additional account flags now */
1024
1025         acct_flags |= ACB_PWNOEXP;
1026
1027         /* Set account flags on machine account */
1028         ZERO_STRUCT(user_info.info16);
1029         user_info.info16.acct_flags = acct_flags;
1030
1031         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1032                                          &user_pol,
1033                                          16,
1034                                          &user_info,
1035                                          &result);
1036         if (!NT_STATUS_IS_OK(status)) {
1037                 dcerpc_samr_DeleteUser(b, mem_ctx,
1038                                        &user_pol,
1039                                        &result);
1040
1041                 libnet_join_set_error_string(mem_ctx, r,
1042                         "Failed to set account flags for machine account (%s)\n",
1043                         nt_errstr(status));
1044                 goto done;
1045         }
1046
1047         if (!NT_STATUS_IS_OK(result)) {
1048                 status = result;
1049
1050                 dcerpc_samr_DeleteUser(b, mem_ctx,
1051                                        &user_pol,
1052                                        &result);
1053
1054                 libnet_join_set_error_string(mem_ctx, r,
1055                         "Failed to set account flags for machine account (%s)\n",
1056                         nt_errstr(status));
1057                 goto done;
1058         }
1059
1060         /* Set password on machine account - first try level 26 */
1061
1062         init_samr_CryptPasswordEx(r->in.machine_password,
1063                                   &cli->user_session_key,
1064                                   &crypt_pwd_ex);
1065
1066         user_info.info26.password = crypt_pwd_ex;
1067         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1068
1069         status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1070                                           &user_pol,
1071                                           26,
1072                                           &user_info,
1073                                           &result);
1074
1075         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
1076
1077                 /* retry with level 24 */
1078
1079                 init_samr_CryptPassword(r->in.machine_password,
1080                                         &cli->user_session_key,
1081                                         &crypt_pwd);
1082
1083                 user_info.info24.password = crypt_pwd;
1084                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1085
1086                 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1087                                                   &user_pol,
1088                                                   24,
1089                                                   &user_info,
1090                                                   &result);
1091         }
1092
1093         if (!NT_STATUS_IS_OK(status)) {
1094
1095                 dcerpc_samr_DeleteUser(b, mem_ctx,
1096                                        &user_pol,
1097                                        &result);
1098
1099                 libnet_join_set_error_string(mem_ctx, r,
1100                         "Failed to set password for machine account (%s)\n",
1101                         nt_errstr(status));
1102                 goto done;
1103         }
1104         if (!NT_STATUS_IS_OK(result)) {
1105                 status = result;
1106
1107                 dcerpc_samr_DeleteUser(b, mem_ctx,
1108                                        &user_pol,
1109                                        &result);
1110
1111                 libnet_join_set_error_string(mem_ctx, r,
1112                         "Failed to set password for machine account (%s)\n",
1113                         nt_errstr(status));
1114                 goto done;
1115         }
1116
1117         status = NT_STATUS_OK;
1118
1119  done:
1120         if (!pipe_hnd) {
1121                 return status;
1122         }
1123
1124         if (is_valid_policy_hnd(&sam_pol)) {
1125                 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1126         }
1127         if (is_valid_policy_hnd(&domain_pol)) {
1128                 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1129         }
1130         if (is_valid_policy_hnd(&user_pol)) {
1131                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1132         }
1133         TALLOC_FREE(pipe_hnd);
1134
1135         return status;
1136 }
1137
1138 /****************************************************************
1139 ****************************************************************/
1140
1141 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1142                         const char *machine_name,
1143                         const char *dc_name)
1144 {
1145         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1146         struct cli_state *cli = NULL;
1147         struct rpc_pipe_client *pipe_hnd = NULL;
1148         struct rpc_pipe_client *netlogon_pipe = NULL;
1149         NTSTATUS status;
1150         char *machine_password = NULL;
1151         char *machine_account = NULL;
1152
1153         if (!dc_name) {
1154                 return NT_STATUS_INVALID_PARAMETER;
1155         }
1156
1157         if (!secrets_init()) {
1158                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1159         }
1160
1161         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1162                                                           NULL, NULL);
1163         if (!machine_password) {
1164                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1165         }
1166
1167         if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1168                 SAFE_FREE(machine_password);
1169                 return NT_STATUS_NO_MEMORY;
1170         }
1171
1172         status = cli_full_connection(&cli, NULL,
1173                                      dc_name,
1174                                      NULL, 0,
1175                                      "IPC$", "IPC",
1176                                      machine_account,
1177                                      NULL,
1178                                      machine_password,
1179                                      0,
1180                                      Undefined);
1181         free(machine_account);
1182         free(machine_password);
1183
1184         if (!NT_STATUS_IS_OK(status)) {
1185                 status = cli_full_connection(&cli, NULL,
1186                                              dc_name,
1187                                              NULL, 0,
1188                                              "IPC$", "IPC",
1189                                              "",
1190                                              NULL,
1191                                              "",
1192                                              0,
1193                                              Undefined);
1194         }
1195
1196         if (!NT_STATUS_IS_OK(status)) {
1197                 return status;
1198         }
1199
1200         status = get_schannel_session_key(cli, netbios_domain_name,
1201                                           &neg_flags, &netlogon_pipe);
1202         if (!NT_STATUS_IS_OK(status)) {
1203                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1204                         cli_shutdown(cli);
1205                         return NT_STATUS_OK;
1206                 }
1207
1208                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1209                         "key from server %s for domain %s. Error was %s\n",
1210                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1211                 cli_shutdown(cli);
1212                 return status;
1213         }
1214
1215         if (!lp_client_schannel()) {
1216                 cli_shutdown(cli);
1217                 return NT_STATUS_OK;
1218         }
1219
1220         status = cli_rpc_pipe_open_schannel_with_key(
1221                 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1222                 DCERPC_AUTH_LEVEL_PRIVACY,
1223                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1224
1225         cli_shutdown(cli);
1226
1227         if (!NT_STATUS_IS_OK(status)) {
1228                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1229                         "on netlogon pipe to server %s for domain %s. "
1230                         "Error was %s\n",
1231                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1232                 return status;
1233         }
1234
1235         return NT_STATUS_OK;
1236 }
1237
1238 /****************************************************************
1239 ****************************************************************/
1240
1241 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1242                                       struct libnet_JoinCtx *r)
1243 {
1244         NTSTATUS status;
1245
1246         status = libnet_join_ok(r->out.netbios_domain_name,
1247                                 r->in.machine_name,
1248                                 r->in.dc_name);
1249         if (!NT_STATUS_IS_OK(status)) {
1250                 libnet_join_set_error_string(mem_ctx, r,
1251                         "failed to verify domain membership after joining: %s",
1252                         get_friendly_nt_error_msg(status));
1253                 return WERR_SETUP_NOT_JOINED;
1254         }
1255
1256         return WERR_OK;
1257 }
1258
1259 /****************************************************************
1260 ****************************************************************/
1261
1262 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1263                                                     struct libnet_UnjoinCtx *r)
1264 {
1265         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1266                 return false;
1267         }
1268
1269         if (!secrets_delete_domain_sid(lp_workgroup())) {
1270                 return false;
1271         }
1272
1273         return true;
1274 }
1275
1276 /****************************************************************
1277 ****************************************************************/
1278
1279 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1280                                              struct libnet_UnjoinCtx *r)
1281 {
1282         struct cli_state *cli = NULL;
1283         struct rpc_pipe_client *pipe_hnd = NULL;
1284         struct policy_handle sam_pol, domain_pol, user_pol;
1285         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1286         char *acct_name;
1287         uint32_t user_rid;
1288         struct lsa_String lsa_acct_name;
1289         struct samr_Ids user_rids;
1290         struct samr_Ids name_types;
1291         union samr_UserInfo *info = NULL;
1292         struct dcerpc_binding_handle *b;
1293
1294         ZERO_STRUCT(sam_pol);
1295         ZERO_STRUCT(domain_pol);
1296         ZERO_STRUCT(user_pol);
1297
1298         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1299                                             r->in.admin_account,
1300                                             r->in.admin_password,
1301                                             r->in.use_kerberos,
1302                                             &cli);
1303         if (!NT_STATUS_IS_OK(status)) {
1304                 goto done;
1305         }
1306
1307         /* Open the domain */
1308
1309         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1310                                           &pipe_hnd);
1311         if (!NT_STATUS_IS_OK(status)) {
1312                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1313                         nt_errstr(status)));
1314                 goto done;
1315         }
1316
1317         b = pipe_hnd->binding_handle;
1318
1319         status = dcerpc_samr_Connect2(b, mem_ctx,
1320                                       pipe_hnd->desthost,
1321                                       SEC_FLAG_MAXIMUM_ALLOWED,
1322                                       &sam_pol,
1323                                       &result);
1324         if (!NT_STATUS_IS_OK(status)) {
1325                 goto done;
1326         }
1327         if (!NT_STATUS_IS_OK(result)) {
1328                 status = result;
1329                 goto done;
1330         }
1331
1332         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1333                                         &sam_pol,
1334                                         SEC_FLAG_MAXIMUM_ALLOWED,
1335                                         r->in.domain_sid,
1336                                         &domain_pol,
1337                                         &result);
1338         if (!NT_STATUS_IS_OK(status)) {
1339                 goto done;
1340         }
1341         if (!NT_STATUS_IS_OK(result)) {
1342                 status = result;
1343                 goto done;
1344         }
1345
1346         /* Create domain user */
1347
1348         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1349         strlower_m(acct_name);
1350
1351         init_lsa_String(&lsa_acct_name, acct_name);
1352
1353         status = dcerpc_samr_LookupNames(b, mem_ctx,
1354                                          &domain_pol,
1355                                          1,
1356                                          &lsa_acct_name,
1357                                          &user_rids,
1358                                          &name_types,
1359                                          &result);
1360
1361         if (!NT_STATUS_IS_OK(status)) {
1362                 goto done;
1363         }
1364         if (!NT_STATUS_IS_OK(result)) {
1365                 status = result;
1366                 goto done;
1367         }
1368
1369         if (name_types.ids[0] != SID_NAME_USER) {
1370                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1371                         name_types.ids[0]));
1372                 status = NT_STATUS_INVALID_WORKSTATION;
1373                 goto done;
1374         }
1375
1376         user_rid = user_rids.ids[0];
1377
1378         /* Open handle on user */
1379
1380         status = dcerpc_samr_OpenUser(b, mem_ctx,
1381                                       &domain_pol,
1382                                       SEC_FLAG_MAXIMUM_ALLOWED,
1383                                       user_rid,
1384                                       &user_pol,
1385                                       &result);
1386         if (!NT_STATUS_IS_OK(status)) {
1387                 goto done;
1388         }
1389         if (!NT_STATUS_IS_OK(result)) {
1390                 status = result;
1391                 goto done;
1392         }
1393
1394         /* Get user info */
1395
1396         status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1397                                            &user_pol,
1398                                            16,
1399                                            &info,
1400                                            &result);
1401         if (!NT_STATUS_IS_OK(status)) {
1402                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1403                 goto done;
1404         }
1405         if (!NT_STATUS_IS_OK(result)) {
1406                 status = result;
1407                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1408                 goto done;
1409         }
1410
1411         /* now disable and setuser info */
1412
1413         info->info16.acct_flags |= ACB_DISABLED;
1414
1415         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1416                                          &user_pol,
1417                                          16,
1418                                          info,
1419                                          &result);
1420         if (!NT_STATUS_IS_OK(status)) {
1421                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1422                 goto done;
1423         }
1424         if (!NT_STATUS_IS_OK(result)) {
1425                 status = result;
1426                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1427                 goto done;
1428         }
1429         status = result;
1430         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1431
1432 done:
1433         if (pipe_hnd) {
1434                 if (is_valid_policy_hnd(&domain_pol)) {
1435                         dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1436                 }
1437                 if (is_valid_policy_hnd(&sam_pol)) {
1438                         dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1439                 }
1440                 TALLOC_FREE(pipe_hnd);
1441         }
1442
1443         if (cli) {
1444                 cli_shutdown(cli);
1445         }
1446
1447         return status;
1448 }
1449
1450 /****************************************************************
1451 ****************************************************************/
1452
1453 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1454 {
1455         WERROR werr;
1456         struct smbconf_ctx *ctx;
1457
1458         werr = smbconf_init_reg(r, &ctx, NULL);
1459         if (!W_ERROR_IS_OK(werr)) {
1460                 goto done;
1461         }
1462
1463         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1464
1465                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1466                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1467
1468                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1469                                                     r->in.domain_name);
1470
1471                 smbconf_delete_global_parameter(ctx, "realm");
1472                 goto done;
1473         }
1474
1475         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1476         W_ERROR_NOT_OK_GOTO_DONE(werr);
1477
1478         werr = smbconf_set_global_parameter(ctx, "workgroup",
1479                                             r->out.netbios_domain_name);
1480         W_ERROR_NOT_OK_GOTO_DONE(werr);
1481
1482         if (r->out.domain_is_ad) {
1483                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1484                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1485
1486                 werr = smbconf_set_global_parameter(ctx, "realm",
1487                                                     r->out.dns_domain_name);
1488                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1489         }
1490
1491  done:
1492         smbconf_shutdown(ctx);
1493         return werr;
1494 }
1495
1496 /****************************************************************
1497 ****************************************************************/
1498
1499 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1500 {
1501         WERROR werr = WERR_OK;
1502         struct smbconf_ctx *ctx;
1503
1504         werr = smbconf_init_reg(r, &ctx, NULL);
1505         if (!W_ERROR_IS_OK(werr)) {
1506                 goto done;
1507         }
1508
1509         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1510
1511                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1512                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1513
1514                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1515                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1516
1517                 smbconf_delete_global_parameter(ctx, "realm");
1518         }
1519
1520  done:
1521         smbconf_shutdown(ctx);
1522         return werr;
1523 }
1524
1525 /****************************************************************
1526 ****************************************************************/
1527
1528 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1529 {
1530         WERROR werr;
1531
1532         if (!W_ERROR_IS_OK(r->out.result)) {
1533                 return r->out.result;
1534         }
1535
1536         if (!r->in.modify_config) {
1537                 return WERR_OK;
1538         }
1539
1540         werr = do_join_modify_vals_config(r);
1541         if (!W_ERROR_IS_OK(werr)) {
1542                 return werr;
1543         }
1544
1545         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1546
1547         r->out.modified_config = true;
1548         r->out.result = werr;
1549
1550         return werr;
1551 }
1552
1553 /****************************************************************
1554 ****************************************************************/
1555
1556 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1557 {
1558         WERROR werr;
1559
1560         if (!W_ERROR_IS_OK(r->out.result)) {
1561                 return r->out.result;
1562         }
1563
1564         if (!r->in.modify_config) {
1565                 return WERR_OK;
1566         }
1567
1568         werr = do_unjoin_modify_vals_config(r);
1569         if (!W_ERROR_IS_OK(werr)) {
1570                 return werr;
1571         }
1572
1573         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1574
1575         r->out.modified_config = true;
1576         r->out.result = werr;
1577
1578         return werr;
1579 }
1580
1581 /****************************************************************
1582 ****************************************************************/
1583
1584 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1585                                    const char *domain_str,
1586                                    const char **domain_p,
1587                                    const char **dc_p)
1588 {
1589         char *domain = NULL;
1590         char *dc = NULL;
1591         const char *p = NULL;
1592
1593         if (!domain_str || !domain_p || !dc_p) {
1594                 return false;
1595         }
1596
1597         p = strchr_m(domain_str, '\\');
1598
1599         if (p != NULL) {
1600                 domain = talloc_strndup(mem_ctx, domain_str,
1601                                          PTR_DIFF(p, domain_str));
1602                 dc = talloc_strdup(mem_ctx, p+1);
1603                 if (!dc) {
1604                         return false;
1605                 }
1606         } else {
1607                 domain = talloc_strdup(mem_ctx, domain_str);
1608                 dc = NULL;
1609         }
1610         if (!domain) {
1611                 return false;
1612         }
1613
1614         *domain_p = domain;
1615
1616         if (!*dc_p && dc) {
1617                 *dc_p = dc;
1618         }
1619
1620         return true;
1621 }
1622
1623 /****************************************************************
1624 ****************************************************************/
1625
1626 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1627                                          struct libnet_JoinCtx *r)
1628 {
1629         if (!r->in.domain_name) {
1630                 libnet_join_set_error_string(mem_ctx, r,
1631                         "No domain name defined");
1632                 return WERR_INVALID_PARAM;
1633         }
1634
1635         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1636                                     &r->in.domain_name,
1637                                     &r->in.dc_name)) {
1638                 libnet_join_set_error_string(mem_ctx, r,
1639                         "Failed to parse domain name");
1640                 return WERR_INVALID_PARAM;
1641         }
1642
1643         if (IS_DC) {
1644                 return WERR_SETUP_DOMAIN_CONTROLLER;
1645         }
1646
1647         if (!secrets_init()) {
1648                 libnet_join_set_error_string(mem_ctx, r,
1649                         "Unable to open secrets database");
1650                 return WERR_CAN_NOT_COMPLETE;
1651         }
1652
1653         return WERR_OK;
1654 }
1655
1656 /****************************************************************
1657 ****************************************************************/
1658
1659 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1660 {
1661         NTSTATUS status;
1662
1663         /* Try adding dom admins to builtin\admins. Only log failures. */
1664         status = create_builtin_administrators(domain_sid);
1665         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1666                 DEBUG(10,("Unable to auto-add domain administrators to "
1667                           "BUILTIN\\Administrators during join because "
1668                           "winbindd must be running."));
1669         } else if (!NT_STATUS_IS_OK(status)) {
1670                 DEBUG(5, ("Failed to auto-add domain administrators to "
1671                           "BUILTIN\\Administrators during join: %s\n",
1672                           nt_errstr(status)));
1673         }
1674
1675         /* Try adding dom users to builtin\users. Only log failures. */
1676         status = create_builtin_users(domain_sid);
1677         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1678                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1679                           "during join because winbindd must be running."));
1680         } else if (!NT_STATUS_IS_OK(status)) {
1681                 DEBUG(5, ("Failed to auto-add domain administrators to "
1682                           "BUILTIN\\Administrators during join: %s\n",
1683                           nt_errstr(status)));
1684         }
1685 }
1686
1687 /****************************************************************
1688 ****************************************************************/
1689
1690 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1691                                           struct libnet_JoinCtx *r)
1692 {
1693         WERROR werr;
1694
1695         if (!W_ERROR_IS_OK(r->out.result)) {
1696                 return r->out.result;
1697         }
1698
1699         werr = do_JoinConfig(r);
1700         if (!W_ERROR_IS_OK(werr)) {
1701                 return werr;
1702         }
1703
1704         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1705                 return WERR_OK;
1706         }
1707
1708         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1709         if (r->out.dns_domain_name) {
1710                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1711         }
1712
1713 #ifdef HAVE_ADS
1714         if (r->out.domain_is_ad &&
1715             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1716                 ADS_STATUS ads_status;
1717
1718                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1719                 if (!ADS_ERR_OK(ads_status)) {
1720                         return WERR_GENERAL_FAILURE;
1721                 }
1722         }
1723 #endif /* HAVE_ADS */
1724
1725         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1726
1727         return WERR_OK;
1728 }
1729
1730 /****************************************************************
1731 ****************************************************************/
1732
1733 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1734 {
1735         const char *krb5_cc_env = NULL;
1736
1737         if (r->in.ads) {
1738                 ads_destroy(&r->in.ads);
1739         }
1740
1741         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1742         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1743                 unsetenv(KRB5_ENV_CCNAME);
1744         }
1745
1746         return 0;
1747 }
1748
1749 /****************************************************************
1750 ****************************************************************/
1751
1752 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1753 {
1754         const char *krb5_cc_env = NULL;
1755
1756         if (r->in.ads) {
1757                 ads_destroy(&r->in.ads);
1758         }
1759
1760         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1761         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1762                 unsetenv(KRB5_ENV_CCNAME);
1763         }
1764
1765         return 0;
1766 }
1767
1768 /****************************************************************
1769 ****************************************************************/
1770
1771 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1772                            struct libnet_JoinCtx **r)
1773 {
1774         struct libnet_JoinCtx *ctx;
1775         const char *krb5_cc_env = NULL;
1776
1777         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1778         if (!ctx) {
1779                 return WERR_NOMEM;
1780         }
1781
1782         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1783
1784         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1785         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1786
1787         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1788         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1789                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1790                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1791                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1792         }
1793
1794         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1795
1796         *r = ctx;
1797
1798         return WERR_OK;
1799 }
1800
1801 /****************************************************************
1802 ****************************************************************/
1803
1804 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1805                              struct libnet_UnjoinCtx **r)
1806 {
1807         struct libnet_UnjoinCtx *ctx;
1808         const char *krb5_cc_env = NULL;
1809
1810         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1811         if (!ctx) {
1812                 return WERR_NOMEM;
1813         }
1814
1815         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1816
1817         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1818         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1819
1820         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1821         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1822                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1823                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1824                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1825         }
1826
1827         *r = ctx;
1828
1829         return WERR_OK;
1830 }
1831
1832 /****************************************************************
1833 ****************************************************************/
1834
1835 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1836                                        struct libnet_JoinCtx *r)
1837 {
1838         bool valid_security = false;
1839         bool valid_workgroup = false;
1840         bool valid_realm = false;
1841
1842         /* check if configuration is already set correctly */
1843
1844         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1845
1846         switch (r->out.domain_is_ad) {
1847                 case false:
1848                         valid_security = (lp_security() == SEC_DOMAIN);
1849                         if (valid_workgroup && valid_security) {
1850                                 /* nothing to be done */
1851                                 return WERR_OK;
1852                         }
1853                         break;
1854                 case true:
1855                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1856                         switch (lp_security()) {
1857                         case SEC_DOMAIN:
1858                         case SEC_ADS:
1859                                 valid_security = true;
1860                         }
1861
1862                         if (valid_workgroup && valid_realm && valid_security) {
1863                                 /* nothing to be done */
1864                                 return WERR_OK;
1865                         }
1866                         break;
1867         }
1868
1869         /* check if we are supposed to manipulate configuration */
1870
1871         if (!r->in.modify_config) {
1872
1873                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1874
1875                 if (!valid_workgroup) {
1876                         wrong_conf = talloc_asprintf_append(wrong_conf,
1877                                 "\"workgroup\" set to '%s', should be '%s'",
1878                                 lp_workgroup(), r->out.netbios_domain_name);
1879                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1880                 }
1881
1882                 if (!valid_realm) {
1883                         wrong_conf = talloc_asprintf_append(wrong_conf,
1884                                 "\"realm\" set to '%s', should be '%s'",
1885                                 lp_realm(), r->out.dns_domain_name);
1886                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1887                 }
1888
1889                 if (!valid_security) {
1890                         const char *sec = NULL;
1891                         switch (lp_security()) {
1892                         case SEC_SHARE: sec = "share"; break;
1893                         case SEC_USER:  sec = "user"; break;
1894                         case SEC_DOMAIN: sec = "domain"; break;
1895                         case SEC_ADS: sec = "ads"; break;
1896                         }
1897                         wrong_conf = talloc_asprintf_append(wrong_conf,
1898                                 "\"security\" set to '%s', should be %s",
1899                                 sec, r->out.domain_is_ad ?
1900                                 "either 'domain' or 'ads'" : "'domain'");
1901                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1902                 }
1903
1904                 libnet_join_set_error_string(mem_ctx, r,
1905                         "Invalid configuration (%s) and configuration modification "
1906                         "was not requested", wrong_conf);
1907                 return WERR_CAN_NOT_COMPLETE;
1908         }
1909
1910         /* check if we are able to manipulate configuration */
1911
1912         if (!lp_config_backend_is_registry()) {
1913                 libnet_join_set_error_string(mem_ctx, r,
1914                         "Configuration manipulation requested but not "
1915                         "supported by backend");
1916                 return WERR_NOT_SUPPORTED;
1917         }
1918
1919         return WERR_OK;
1920 }
1921
1922 /****************************************************************
1923 ****************************************************************/
1924
1925 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1926                                 struct libnet_JoinCtx *r)
1927 {
1928         NTSTATUS status;
1929         WERROR werr;
1930         struct cli_state *cli = NULL;
1931 #ifdef HAVE_ADS
1932         ADS_STATUS ads_status;
1933 #endif /* HAVE_ADS */
1934
1935         if (!r->in.dc_name) {
1936                 struct netr_DsRGetDCNameInfo *info;
1937                 const char *dc;
1938                 status = dsgetdcname(mem_ctx,
1939                                      r->in.msg_ctx,
1940                                      r->in.domain_name,
1941                                      NULL,
1942                                      NULL,
1943                                      DS_FORCE_REDISCOVERY |
1944                                      DS_DIRECTORY_SERVICE_REQUIRED |
1945                                      DS_WRITABLE_REQUIRED |
1946                                      DS_RETURN_DNS_NAME,
1947                                      &info);
1948                 if (!NT_STATUS_IS_OK(status)) {
1949                         libnet_join_set_error_string(mem_ctx, r,
1950                                 "failed to find DC for domain %s",
1951                                 r->in.domain_name,
1952                                 get_friendly_nt_error_msg(status));
1953                         return WERR_DCNOTFOUND;
1954                 }
1955
1956                 dc = strip_hostname(info->dc_unc);
1957                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1958                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1959         }
1960
1961         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1962         if (!NT_STATUS_IS_OK(status)) {
1963                 libnet_join_set_error_string(mem_ctx, r,
1964                         "failed to lookup DC info for domain '%s' over rpc: %s",
1965                         r->in.domain_name, get_friendly_nt_error_msg(status));
1966                 return ntstatus_to_werror(status);
1967         }
1968
1969         werr = libnet_join_check_config(mem_ctx, r);
1970         if (!W_ERROR_IS_OK(werr)) {
1971                 goto done;
1972         }
1973
1974 #ifdef HAVE_ADS
1975         if (r->out.domain_is_ad && r->in.account_ou &&
1976             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1977
1978                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1979                 if (!ADS_ERR_OK(ads_status)) {
1980                         return WERR_DEFAULT_JOIN_REQUIRED;
1981                 }
1982
1983                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1984                 if (!ADS_ERR_OK(ads_status)) {
1985                         libnet_join_set_error_string(mem_ctx, r,
1986                                 "failed to precreate account in ou %s: %s",
1987                                 r->in.account_ou,
1988                                 ads_errstr(ads_status));
1989                         return WERR_DEFAULT_JOIN_REQUIRED;
1990                 }
1991
1992                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1993         }
1994 #endif /* HAVE_ADS */
1995
1996         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
1997             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
1998                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
1999         } else {
2000                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2001         }
2002         if (!NT_STATUS_IS_OK(status)) {
2003                 libnet_join_set_error_string(mem_ctx, r,
2004                         "failed to join domain '%s' over rpc: %s",
2005                         r->in.domain_name, get_friendly_nt_error_msg(status));
2006                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2007                         return WERR_SETUP_ALREADY_JOINED;
2008                 }
2009                 werr = ntstatus_to_werror(status);
2010                 goto done;
2011         }
2012
2013         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2014                 werr = WERR_SETUP_NOT_JOINED;
2015                 goto done;
2016         }
2017
2018         werr = WERR_OK;
2019
2020  done:
2021         if (cli) {
2022                 cli_shutdown(cli);
2023         }
2024
2025         return werr;
2026 }
2027
2028 /****************************************************************
2029 ****************************************************************/
2030
2031 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2032                                    struct libnet_JoinCtx *r)
2033 {
2034         WERROR werr;
2035         struct libnet_UnjoinCtx *u = NULL;
2036
2037         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2038         if (!W_ERROR_IS_OK(werr)) {
2039                 return werr;
2040         }
2041
2042         u->in.debug             = r->in.debug;
2043         u->in.dc_name           = r->in.dc_name;
2044         u->in.domain_name       = r->in.domain_name;
2045         u->in.admin_account     = r->in.admin_account;
2046         u->in.admin_password    = r->in.admin_password;
2047         u->in.modify_config     = r->in.modify_config;
2048         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2049                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2050
2051         werr = libnet_Unjoin(mem_ctx, u);
2052         TALLOC_FREE(u);
2053
2054         return werr;
2055 }
2056
2057 /****************************************************************
2058 ****************************************************************/
2059
2060 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2061                    struct libnet_JoinCtx *r)
2062 {
2063         WERROR werr;
2064
2065         if (r->in.debug) {
2066                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2067         }
2068
2069         werr = libnet_join_pre_processing(mem_ctx, r);
2070         if (!W_ERROR_IS_OK(werr)) {
2071                 goto done;
2072         }
2073
2074         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2075                 werr = libnet_DomainJoin(mem_ctx, r);
2076                 if (!W_ERROR_IS_OK(werr)) {
2077                         goto done;
2078                 }
2079         }
2080
2081         werr = libnet_join_post_processing(mem_ctx, r);
2082         if (!W_ERROR_IS_OK(werr)) {
2083                 goto done;
2084         }
2085
2086         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2087                 werr = libnet_join_post_verify(mem_ctx, r);
2088                 if (!W_ERROR_IS_OK(werr)) {
2089                         libnet_join_rollback(mem_ctx, r);
2090                 }
2091         }
2092
2093  done:
2094         r->out.result = werr;
2095
2096         if (r->in.debug) {
2097                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2098         }
2099         return werr;
2100 }
2101
2102 /****************************************************************
2103 ****************************************************************/
2104
2105 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2106                                   struct libnet_UnjoinCtx *r)
2107 {
2108         NTSTATUS status;
2109
2110         if (!r->in.domain_sid) {
2111                 struct dom_sid sid;
2112                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2113                         libnet_unjoin_set_error_string(mem_ctx, r,
2114                                 "Unable to fetch domain sid: are we joined?");
2115                         return WERR_SETUP_NOT_JOINED;
2116                 }
2117                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2118                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2119         }
2120
2121         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2122             !r->in.delete_machine_account) {
2123                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2124                 return WERR_OK;
2125         }
2126
2127         if (!r->in.dc_name) {
2128                 struct netr_DsRGetDCNameInfo *info;
2129                 const char *dc;
2130                 status = dsgetdcname(mem_ctx,
2131                                      r->in.msg_ctx,
2132                                      r->in.domain_name,
2133                                      NULL,
2134                                      NULL,
2135                                      DS_DIRECTORY_SERVICE_REQUIRED |
2136                                      DS_WRITABLE_REQUIRED |
2137                                      DS_RETURN_DNS_NAME,
2138                                      &info);
2139                 if (!NT_STATUS_IS_OK(status)) {
2140                         libnet_unjoin_set_error_string(mem_ctx, r,
2141                                 "failed to find DC for domain %s",
2142                                 r->in.domain_name,
2143                                 get_friendly_nt_error_msg(status));
2144                         return WERR_DCNOTFOUND;
2145                 }
2146
2147                 dc = strip_hostname(info->dc_unc);
2148                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2149                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2150         }
2151
2152 #ifdef HAVE_ADS
2153         /* for net ads leave, try to delete the account.  If it works,
2154            no sense in disabling.  If it fails, we can still try to
2155            disable it. jmcd */
2156
2157         if (r->in.delete_machine_account) {
2158                 ADS_STATUS ads_status;
2159                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2160                 if (ADS_ERR_OK(ads_status)) {
2161                         /* dirty hack */
2162                         r->out.dns_domain_name =
2163                                 talloc_strdup(mem_ctx,
2164                                               r->in.ads->server.realm);
2165                         ads_status =
2166                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2167                 }
2168                 if (!ADS_ERR_OK(ads_status)) {
2169                         libnet_unjoin_set_error_string(mem_ctx, r,
2170                                 "failed to remove machine account from AD: %s",
2171                                 ads_errstr(ads_status));
2172                 } else {
2173                         r->out.deleted_machine_account = true;
2174                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2175                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2176                         return WERR_OK;
2177                 }
2178         }
2179 #endif /* HAVE_ADS */
2180
2181         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2182            "disable".  */
2183         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2184                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2185                 if (!NT_STATUS_IS_OK(status)) {
2186                         libnet_unjoin_set_error_string(mem_ctx, r,
2187                                 "failed to disable machine account via rpc: %s",
2188                                 get_friendly_nt_error_msg(status));
2189                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2190                                 return WERR_SETUP_NOT_JOINED;
2191                         }
2192                         return ntstatus_to_werror(status);
2193                 }
2194
2195                 r->out.disabled_machine_account = true;
2196         }
2197
2198         /* If disable succeeded or was not requested at all, we
2199            should be getting rid of our end of things */
2200
2201         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2202
2203         return WERR_OK;
2204 }
2205
2206 /****************************************************************
2207 ****************************************************************/
2208
2209 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2210                                            struct libnet_UnjoinCtx *r)
2211 {
2212         if (!r->in.domain_name) {
2213                 libnet_unjoin_set_error_string(mem_ctx, r,
2214                         "No domain name defined");
2215                 return WERR_INVALID_PARAM;
2216         }
2217
2218         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2219                                     &r->in.domain_name,
2220                                     &r->in.dc_name)) {
2221                 libnet_unjoin_set_error_string(mem_ctx, r,
2222                         "Failed to parse domain name");
2223                 return WERR_INVALID_PARAM;
2224         }
2225
2226         if (IS_DC) {
2227                 return WERR_SETUP_DOMAIN_CONTROLLER;
2228         }
2229
2230         if (!secrets_init()) {
2231                 libnet_unjoin_set_error_string(mem_ctx, r,
2232                         "Unable to open secrets database");
2233                 return WERR_CAN_NOT_COMPLETE;
2234         }
2235
2236         return WERR_OK;
2237 }
2238
2239 /****************************************************************
2240 ****************************************************************/
2241
2242 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2243                                             struct libnet_UnjoinCtx *r)
2244 {
2245         saf_delete(r->out.netbios_domain_name);
2246         saf_delete(r->out.dns_domain_name);
2247
2248         return libnet_unjoin_config(r);
2249 }
2250
2251 /****************************************************************
2252 ****************************************************************/
2253
2254 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2255                      struct libnet_UnjoinCtx *r)
2256 {
2257         WERROR werr;
2258
2259         if (r->in.debug) {
2260                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2261         }
2262
2263         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2264         if (!W_ERROR_IS_OK(werr)) {
2265                 goto done;
2266         }
2267
2268         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2269                 werr = libnet_DomainUnjoin(mem_ctx, r);
2270                 if (!W_ERROR_IS_OK(werr)) {
2271                         libnet_unjoin_config(r);
2272                         goto done;
2273                 }
2274         }
2275
2276         werr = libnet_unjoin_post_processing(mem_ctx, r);
2277         if (!W_ERROR_IS_OK(werr)) {
2278                 goto done;
2279         }
2280
2281  done:
2282         r->out.result = werr;
2283
2284         if (r->in.debug) {
2285                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2286         }
2287
2288         return werr;
2289 }