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/cli_samr.h"
  27 #include "rpc_client/init_samr.h"
  28 #include "../librpc/gen_ndr/cli_lsa.h"
  29 #include "rpc_client/cli_lsarpc.h"
  30 #include "../librpc/gen_ndr/cli_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
  38 /****************************************************************
  39 ****************************************************************/
  40
  41 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  42         do { \
  43                 char *str = NULL; \
  44                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  45                 DEBUG(1,("libnet_Join:\n%s", str)); \
  46                 TALLOC_FREE(str); \
  47         } while (0)
  48
  49 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  50         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  51 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  52         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  53
  54 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  55         do { \
  56                 char *str = NULL; \
  57                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  58                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  59                 TALLOC_FREE(str); \
  60         } while (0)
  61
  62 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  63         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  64 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  65         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  66
  67 /****************************************************************
  68 ****************************************************************/
  69
  70 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  71                                          struct libnet_JoinCtx *r,
  72                                          const char *format, ...)
  73 {
  74         va_list args;
  75
  76         if (r->out.error_string) {
  77                 return;
  78         }
  79
  80         va_start(args, format);
  81         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  82         va_end(args);
  83 }
  84
  85 /****************************************************************
  86 ****************************************************************/
  87
  88 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  89                                            struct libnet_UnjoinCtx *r,
  90                                            const char *format, ...)
  91 {
  92         va_list args;
  93
  94         if (r->out.error_string) {
  95                 return;
  96         }
  97
  98         va_start(args, format);
  99         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
 100         va_end(args);
 101 }
 102
 103 #ifdef WITH_ADS
 104
 105 /****************************************************************
 106 ****************************************************************/
 107
 108 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 109                                      const char *netbios_domain_name,
 110                                      const char *dc_name,
 111                                      const char *user_name,
 112                                      const char *password,
 113                                      ADS_STRUCT **ads)
 114 {
 115         ADS_STATUS status;
 116         ADS_STRUCT *my_ads = NULL;
 117         char *cp;
 118
 119         my_ads = ads_init(dns_domain_name,
 120                           netbios_domain_name,
 121                           dc_name);
 122         if (!my_ads) {
 123                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 124         }
 125
 126         if (user_name) {
 127                 SAFE_FREE(my_ads->auth.user_name);
 128                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 129                 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
 130                         *cp++ = '\0';
 131                         SAFE_FREE(my_ads->auth.realm);
 132                         my_ads->auth.realm = smb_xstrdup(cp);
 133                         strupper_m(my_ads->auth.realm);
 134                 }
 135         }
 136
 137         if (password) {
 138                 SAFE_FREE(my_ads->auth.password);
 139                 my_ads->auth.password = SMB_STRDUP(password);
 140         }
 141
 142         status = ads_connect_user_creds(my_ads);
 143         if (!ADS_ERR_OK(status)) {
 144                 ads_destroy(&my_ads);
 145                 return status;
 146         }
 147
 148         *ads = my_ads;
 149         return ADS_SUCCESS;
 150 }
 151
 152 /****************************************************************
 153 ****************************************************************/
 154
 155 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 156                                           struct libnet_JoinCtx *r)
 157 {
 158         ADS_STATUS status;
 159
 160         status = libnet_connect_ads(r->out.dns_domain_name,
 161                                     r->out.netbios_domain_name,
 162                                     r->in.dc_name,
 163                                     r->in.admin_account,
 164                                     r->in.admin_password,
 165                                     &r->in.ads);
 166         if (!ADS_ERR_OK(status)) {
 167                 libnet_join_set_error_string(mem_ctx, r,
 168                         "failed to connect to AD: %s",
 169                         ads_errstr(status));
 170                 return status;
 171         }
 172
 173         if (!r->out.netbios_domain_name) {
 174                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 175                                                            r->in.ads->server.workgroup);
 176                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 177         }
 178
 179         if (!r->out.dns_domain_name) {
 180                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 181                                                        r->in.ads->config.realm);
 182                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 183         }
 184
 185         r->out.domain_is_ad = true;
 186
 187         return ADS_SUCCESS;
 188 }
 189
 190 /****************************************************************
 191 ****************************************************************/
 192
 193 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 194                                             struct libnet_UnjoinCtx *r)
 195 {
 196         ADS_STATUS status;
 197
 198         status = libnet_connect_ads(r->in.domain_name,
 199                                     r->in.domain_name,
 200                                     r->in.dc_name,
 201                                     r->in.admin_account,
 202                                     r->in.admin_password,
 203                                     &r->in.ads);
 204         if (!ADS_ERR_OK(status)) {
 205                 libnet_unjoin_set_error_string(mem_ctx, r,
 206                         "failed to connect to AD: %s",
 207                         ads_errstr(status));
 208         }
 209
 210         return status;
 211 }
 212
 213 /****************************************************************
 214  join a domain using ADS (LDAP mods)
 215 ****************************************************************/
 216
 217 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 218                                                      struct libnet_JoinCtx *r)
 219 {
 220         ADS_STATUS status;
 221         LDAPMessage *res = NULL;
 222         const char *attrs[] = { "dn", NULL };
 223         bool moved = false;
 224
 225         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 226         if (!ADS_ERR_OK(status)) {
 227                 return status;
 228         }
 229
 230         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 231         if (!ADS_ERR_OK(status)) {
 232                 return status;
 233         }
 234
 235         if (ads_count_replies(r->in.ads, res) != 1) {
 236                 ads_msgfree(r->in.ads, res);
 237                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 238         }
 239
 240         ads_msgfree(r->in.ads, res);
 241
 242         /* Attempt to create the machine account and bail if this fails.
 243            Assume that the admin wants exactly what they requested */
 244
 245         status = ads_create_machine_acct(r->in.ads,
 246                                          r->in.machine_name,
 247                                          r->in.account_ou);
 248
 249         if (ADS_ERR_OK(status)) {
 250                 DEBUG(1,("machine account creation created\n"));
 251                 return status;
 252         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 253                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 254                 status = ADS_SUCCESS;
 255         }
 256
 257         if (!ADS_ERR_OK(status)) {
 258                 DEBUG(1,("machine account creation failed\n"));
 259                 return status;
 260         }
 261
 262         status = ads_move_machine_acct(r->in.ads,
 263                                        r->in.machine_name,
 264                                        r->in.account_ou,
 265                                        &moved);
 266         if (!ADS_ERR_OK(status)) {
 267                 DEBUG(1,("failure to locate/move pre-existing "
 268                         "machine account\n"));
 269                 return status;
 270         }
 271
 272         DEBUG(1,("The machine account %s the specified OU.\n",
 273                 moved ? "was moved into" : "already exists in"));
 274
 275         return status;
 276 }
 277
 278 /****************************************************************
 279 ****************************************************************/
 280
 281 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 282                                                     struct libnet_UnjoinCtx *r)
 283 {
 284         ADS_STATUS status;
 285
 286         if (!r->in.ads) {
 287                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 288                 if (!ADS_ERR_OK(status)) {
 289                         libnet_unjoin_set_error_string(mem_ctx, r,
 290                                 "failed to connect to AD: %s",
 291                                 ads_errstr(status));
 292                         return status;
 293                 }
 294         }
 295
 296         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 297         if (!ADS_ERR_OK(status)) {
 298                 libnet_unjoin_set_error_string(mem_ctx, r,
 299                         "failed to leave realm: %s",
 300                         ads_errstr(status));
 301                 return status;
 302         }
 303
 304         return ADS_SUCCESS;
 305 }
 306
 307 /****************************************************************
 308 ****************************************************************/
 309
 310 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 311                                                 struct libnet_JoinCtx *r)
 312 {
 313         ADS_STATUS status;
 314         LDAPMessage *res = NULL;
 315         char *dn = NULL;
 316
 317         if (!r->in.machine_name) {
 318                 return ADS_ERROR(LDAP_NO_MEMORY);
 319         }
 320
 321         status = ads_find_machine_acct(r->in.ads,
 322                                        &res,
 323                                        r->in.machine_name);
 324         if (!ADS_ERR_OK(status)) {
 325                 return status;
 326         }
 327
 328         if (ads_count_replies(r->in.ads, res) != 1) {
 329                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 330                 goto done;
 331         }
 332
 333         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 334         if (!dn) {
 335                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 336                 goto done;
 337         }
 338
 339         r->out.dn = talloc_strdup(mem_ctx, dn);
 340         if (!r->out.dn) {
 341                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 342                 goto done;
 343         }
 344
 345  done:
 346         ads_msgfree(r->in.ads, res);
 347         TALLOC_FREE(dn);
 348
 349         return status;
 350 }
 351
 352 /****************************************************************
 353  Set a machines dNSHostName and servicePrincipalName attributes
 354 ****************************************************************/
 355
 356 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 357                                               struct libnet_JoinCtx *r)
 358 {
 359         ADS_STATUS status;
 360         ADS_MODLIST mods;
 361         fstring my_fqdn;
 362         const char *spn_array[3] = {NULL, NULL, NULL};
 363         char *spn = NULL;
 364
 365         /* Find our DN */
 366
 367         status = libnet_join_find_machine_acct(mem_ctx, r);
 368         if (!ADS_ERR_OK(status)) {
 369                 return status;
 370         }
 371
 372         /* Windows only creates HOST/shortname & HOST/fqdn. */
 373
 374         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 375         if (!spn) {
 376                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 377         }
 378         strupper_m(spn);
 379         spn_array[0] = spn;
 380
 381         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 382             || (strchr(my_fqdn, '.') == NULL)) {
 383                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 384                              r->out.dns_domain_name);
 385         }
 386
 387         strlower_m(my_fqdn);
 388
 389         if (!strequal(my_fqdn, r->in.machine_name)) {
 390                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 391                 if (!spn) {
 392                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 393                 }
 394                 spn_array[1] = spn;
 395         }
 396
 397         mods = ads_init_mods(mem_ctx);
 398         if (!mods) {
 399                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 400         }
 401
 402         /* fields of primary importance */
 403
 404         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 405         if (!ADS_ERR_OK(status)) {
 406                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 407         }
 408
 409         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 410                                  spn_array);
 411         if (!ADS_ERR_OK(status)) {
 412                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 413         }
 414
 415         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 416 }
 417
 418 /****************************************************************
 419 ****************************************************************/
 420
 421 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 422                                               struct libnet_JoinCtx *r)
 423 {
 424         ADS_STATUS status;
 425         ADS_MODLIST mods;
 426
 427         if (!r->in.create_upn) {
 428                 return ADS_SUCCESS;
 429         }
 430
 431         /* Find our DN */
 432
 433         status = libnet_join_find_machine_acct(mem_ctx, r);
 434         if (!ADS_ERR_OK(status)) {
 435                 return status;
 436         }
 437
 438         if (!r->in.upn) {
 439                 r->in.upn = talloc_asprintf(mem_ctx,
 440                                             "host/%s@%s",
 441                                             r->in.machine_name,
 442                                             r->out.dns_domain_name);
 443                 if (!r->in.upn) {
 444                         return ADS_ERROR(LDAP_NO_MEMORY);
 445                 }
 446         }
 447
 448         /* now do the mods */
 449
 450         mods = ads_init_mods(mem_ctx);
 451         if (!mods) {
 452                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 453         }
 454
 455         /* fields of primary importance */
 456
 457         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 458         if (!ADS_ERR_OK(status)) {
 459                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 460         }
 461
 462         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 463 }
 464
 465
 466 /****************************************************************
 467 ****************************************************************/
 468
 469 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 470                                                 struct libnet_JoinCtx *r)
 471 {
 472         ADS_STATUS status;
 473         ADS_MODLIST mods;
 474         char *os_sp = NULL;
 475
 476         if (!r->in.os_name || !r->in.os_version ) {
 477                 return ADS_SUCCESS;
 478         }
 479
 480         /* Find our DN */
 481
 482         status = libnet_join_find_machine_acct(mem_ctx, r);
 483         if (!ADS_ERR_OK(status)) {
 484                 return status;
 485         }
 486
 487         /* now do the mods */
 488
 489         mods = ads_init_mods(mem_ctx);
 490         if (!mods) {
 491                 return ADS_ERROR(LDAP_NO_MEMORY);
 492         }
 493
 494         os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
 495         if (!os_sp) {
 496                 return ADS_ERROR(LDAP_NO_MEMORY);
 497         }
 498
 499         /* fields of primary importance */
 500
 501         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 502                              r->in.os_name);
 503         if (!ADS_ERR_OK(status)) {
 504                 return status;
 505         }
 506
 507         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 508                              r->in.os_version);
 509         if (!ADS_ERR_OK(status)) {
 510                 return status;
 511         }
 512
 513         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 514                              os_sp);
 515         if (!ADS_ERR_OK(status)) {
 516                 return status;
 517         }
 518
 519         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 520 }
 521
 522 /****************************************************************
 523 ****************************************************************/
 524
 525 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 526                                       struct libnet_JoinCtx *r)
 527 {
 528         if (!USE_SYSTEM_KEYTAB) {
 529                 return true;
 530         }
 531
 532         if (ads_keytab_create_default(r->in.ads) != 0) {
 533                 return false;
 534         }
 535
 536         return true;
 537 }
 538
 539 /****************************************************************
 540 ****************************************************************/
 541
 542 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 543                                                  struct libnet_JoinCtx *r)
 544 {
 545         uint32_t domain_func;
 546         ADS_STATUS status;
 547         const char *salt = NULL;
 548         char *std_salt = NULL;
 549
 550         status = ads_domain_func_level(r->in.ads, &domain_func);
 551         if (!ADS_ERR_OK(status)) {
 552                 libnet_join_set_error_string(mem_ctx, r,
 553                         "failed to determine domain functional level: %s",
 554                         ads_errstr(status));
 555                 return false;
 556         }
 557
 558         /* go ahead and setup the default salt */
 559
 560         std_salt = kerberos_standard_des_salt();
 561         if (!std_salt) {
 562                 libnet_join_set_error_string(mem_ctx, r,
 563                         "failed to obtain standard DES salt");
 564                 return false;
 565         }
 566
 567         salt = talloc_strdup(mem_ctx, std_salt);
 568         if (!salt) {
 569                 return false;
 570         }
 571
 572         SAFE_FREE(std_salt);
 573
 574         /* if it's a Windows functional domain, we have to look for the UPN */
 575
 576         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 577                 char *upn;
 578
 579                 upn = ads_get_upn(r->in.ads, mem_ctx,
 580                                   r->in.machine_name);
 581                 if (upn) {
 582                         salt = talloc_strdup(mem_ctx, upn);
 583                         if (!salt) {
 584                                 return false;
 585                         }
 586                 }
 587         }
 588
 589         return kerberos_secrets_store_des_salt(salt);
 590 }
 591
 592 /****************************************************************
 593 ****************************************************************/
 594
 595 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 596                                                   struct libnet_JoinCtx *r)
 597 {
 598         ADS_STATUS status;
 599
 600         if (!r->in.ads) {
 601                 status = libnet_join_connect_ads(mem_ctx, r);
 602                 if (!ADS_ERR_OK(status)) {
 603                         return status;
 604                 }
 605         }
 606
 607         status = libnet_join_set_machine_spn(mem_ctx, r);
 608         if (!ADS_ERR_OK(status)) {
 609                 libnet_join_set_error_string(mem_ctx, r,
 610                         "failed to set machine spn: %s",
 611                         ads_errstr(status));
 612                 return status;
 613         }
 614
 615         status = libnet_join_set_os_attributes(mem_ctx, r);
 616         if (!ADS_ERR_OK(status)) {
 617                 libnet_join_set_error_string(mem_ctx, r,
 618                         "failed to set machine os attributes: %s",
 619                         ads_errstr(status));
 620                 return status;
 621         }
 622
 623         status = libnet_join_set_machine_upn(mem_ctx, r);
 624         if (!ADS_ERR_OK(status)) {
 625                 libnet_join_set_error_string(mem_ctx, r,
 626                         "failed to set machine upn: %s",
 627                         ads_errstr(status));
 628                 return status;
 629         }
 630
 631         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 632                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 633         }
 634
 635         if (!libnet_join_create_keytab(mem_ctx, r)) {
 636                 libnet_join_set_error_string(mem_ctx, r,
 637                         "failed to create kerberos keytab");
 638                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 639         }
 640
 641         return ADS_SUCCESS;
 642 }
 643 #endif /* WITH_ADS */
 644
 645 /****************************************************************
 646  Store the machine password and domain SID
 647 ****************************************************************/
 648
 649 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 650                                                  struct libnet_JoinCtx *r)
 651 {
 652         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 653                                       r->out.domain_sid))
 654         {
 655                 DEBUG(1,("Failed to save domain sid\n"));
 656                 return false;
 657         }
 658
 659         if (!secrets_store_machine_password(r->in.machine_password,
 660                                             r->out.netbios_domain_name,
 661                                             r->in.secure_channel_type))
 662         {
 663                 DEBUG(1,("Failed to save machine password\n"));
 664                 return false;
 665         }
 666
 667         return true;
 668 }
 669
 670 /****************************************************************
 671  Connect dc's IPC$ share
 672 ****************************************************************/
 673
 674 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 675                                            const char *user,
 676                                            const char *pass,
 677                                            bool use_kerberos,
 678                                            struct cli_state **cli)
 679 {
 680         int flags = 0;
 681
 682         if (use_kerberos) {
 683                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 684         }
 685
 686         if (use_kerberos && pass) {
 687                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 688         }
 689
 690         return cli_full_connection(cli, NULL,
 691                                    dc,
 692                                    NULL, 0,
 693                                    "IPC$", "IPC",
 694                                    user,
 695                                    NULL,
 696                                    pass,
 697                                    flags,
 698                                    Undefined, NULL);
 699 }
 700
 701 /****************************************************************
 702  Lookup domain dc's info
 703 ****************************************************************/
 704
 705 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 706                                           struct libnet_JoinCtx *r,
 707                                           struct cli_state **cli)
 708 {
 709         struct rpc_pipe_client *pipe_hnd = NULL;
 710         struct policy_handle lsa_pol;
 711         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 712         union lsa_PolicyInformation *info = NULL;
 713
 714         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 715                                             r->in.admin_account,
 716                                             r->in.admin_password,
 717                                             r->in.use_kerberos,
 718                                             cli);
 719         if (!NT_STATUS_IS_OK(status)) {
 720                 goto done;
 721         }
 722
 723         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 724                                           &pipe_hnd);
 725         if (!NT_STATUS_IS_OK(status)) {
 726                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 727                         nt_errstr(status)));
 728                 goto done;
 729         }
 730
 731         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 732                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 733         if (!NT_STATUS_IS_OK(status)) {
 734                 goto done;
 735         }
 736
 737         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
 738                                              &lsa_pol,
 739                                              LSA_POLICY_INFO_DNS,
 740                                              &info);
 741         if (NT_STATUS_IS_OK(status)) {
 742                 r->out.domain_is_ad = true;
 743                 r->out.netbios_domain_name = info->dns.name.string;
 744                 r->out.dns_domain_name = info->dns.dns_domain.string;
 745                 r->out.forest_name = info->dns.dns_forest.string;
 746                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->dns.sid);
 747                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 748         }
 749
 750         if (!NT_STATUS_IS_OK(status)) {
 751                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
 752                                                     &lsa_pol,
 753                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 754                                                     &info);
 755                 if (!NT_STATUS_IS_OK(status)) {
 756                         goto done;
 757                 }
 758
 759                 r->out.netbios_domain_name = info->account_domain.name.string;
 760                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->account_domain.sid);
 761                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 762         }
 763
 764         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
 765         TALLOC_FREE(pipe_hnd);
 766
 767  done:
 768         return status;
 769 }
 770
 771 /****************************************************************
 772  Do the domain join unsecure
 773 ****************************************************************/
 774
 775 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 776                                                     struct libnet_JoinCtx *r,
 777                                                     struct cli_state *cli)
 778 {
 779         struct rpc_pipe_client *pipe_hnd = NULL;
 780         unsigned char orig_trust_passwd_hash[16];
 781         unsigned char new_trust_passwd_hash[16];
 782         fstring trust_passwd;
 783         NTSTATUS status;
 784
 785         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
 786                                           &pipe_hnd);
 787         if (!NT_STATUS_IS_OK(status)) {
 788                 return status;
 789         }
 790
 791         if (!r->in.machine_password) {
 792                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 793                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 794         }
 795
 796         E_md4hash(r->in.machine_password, new_trust_passwd_hash);
 797
 798         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 799         fstrcpy(trust_passwd, r->in.admin_password);
 800         strlower_m(trust_passwd);
 801
 802         /*
 803          * Machine names can be 15 characters, but the max length on
 804          * a password is 14.  --jerry
 805          */
 806
 807         trust_passwd[14] = '\0';
 808
 809         E_md4hash(trust_passwd, orig_trust_passwd_hash);
 810
 811         status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
 812                                                     r->in.machine_name,
 813                                                     orig_trust_passwd_hash,
 814                                                     r->in.machine_password,
 815                                                     new_trust_passwd_hash,
 816                                                     r->in.secure_channel_type);
 817
 818         return status;
 819 }
 820
 821 /****************************************************************
 822  Do the domain join
 823 ****************************************************************/
 824
 825 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 826                                            struct libnet_JoinCtx *r,
 827                                            struct cli_state *cli)
 828 {
 829         struct rpc_pipe_client *pipe_hnd = NULL;
 830         struct policy_handle sam_pol, domain_pol, user_pol;
 831         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 832         char *acct_name;
 833         struct lsa_String lsa_acct_name;
 834         uint32_t user_rid;
 835         uint32_t acct_flags = ACB_WSTRUST;
 836         struct samr_Ids user_rids;
 837         struct samr_Ids name_types;
 838         union samr_UserInfo user_info;
 839
 840         struct samr_CryptPassword crypt_pwd;
 841         struct samr_CryptPasswordEx crypt_pwd_ex;
 842
 843         ZERO_STRUCT(sam_pol);
 844         ZERO_STRUCT(domain_pol);
 845         ZERO_STRUCT(user_pol);
 846
 847         switch (r->in.secure_channel_type) {
 848         case SEC_CHAN_WKSTA:
 849                 acct_flags = ACB_WSTRUST;
 850                 break;
 851         case SEC_CHAN_BDC:
 852                 acct_flags = ACB_SVRTRUST;
 853                 break;
 854         default:
 855                 return NT_STATUS_INVALID_PARAMETER;
 856         }
 857
 858         if (!r->in.machine_password) {
 859                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 860                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 861         }
 862
 863         /* Open the domain */
 864
 865         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 866                                           &pipe_hnd);
 867         if (!NT_STATUS_IS_OK(status)) {
 868                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 869                         nt_errstr(status)));
 870                 goto done;
 871         }
 872
 873         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
 874                                       pipe_hnd->desthost,
 875                                       SAMR_ACCESS_ENUM_DOMAINS
 876                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
 877                                       &sam_pol);
 878         if (!NT_STATUS_IS_OK(status)) {
 879                 goto done;
 880         }
 881
 882         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
 883                                         &sam_pol,
 884                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
 885                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
 886                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 887                                         r->out.domain_sid,
 888                                         &domain_pol);
 889         if (!NT_STATUS_IS_OK(status)) {
 890                 goto done;
 891         }
 892
 893         /* Create domain user */
 894
 895         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 896         strlower_m(acct_name);
 897
 898         init_lsa_String(&lsa_acct_name, acct_name);
 899
 900         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 901                 uint32_t access_desired =
 902                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 903                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 904                         SAMR_USER_ACCESS_SET_PASSWORD |
 905                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 906                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 907                 uint32_t access_granted = 0;
 908
 909                 DEBUG(10,("Creating account with desired access mask: %d\n",
 910                         access_desired));
 911
 912                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
 913                                                  &domain_pol,
 914                                                  &lsa_acct_name,
 915                                                  acct_flags,
 916                                                  access_desired,
 917                                                  &user_pol,
 918                                                  &access_granted,
 919                                                  &user_rid);
 920                 if (!NT_STATUS_IS_OK(status) &&
 921                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 922
 923                         DEBUG(10,("Creation of workstation account failed: %s\n",
 924                                 nt_errstr(status)));
 925
 926                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 927                            username/password combo but the user does not have
 928                            administrator access. */
 929
 930                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 931                                 libnet_join_set_error_string(mem_ctx, r,
 932                                         "User specified does not have "
 933                                         "administrator privileges");
 934                         }
 935
 936                         goto done;
 937                 }
 938
 939                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 940                         if (!(r->in.join_flags &
 941                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 942                                 goto done;
 943                         }
 944                 }
 945
 946                 /* We *must* do this.... don't ask... */
 947
 948                 if (NT_STATUS_IS_OK(status)) {
 949                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 950                 }
 951         }
 952
 953         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
 954                                          &domain_pol,
 955                                          1,
 956                                          &lsa_acct_name,
 957                                          &user_rids,
 958                                          &name_types);
 959         if (!NT_STATUS_IS_OK(status)) {
 960                 goto done;
 961         }
 962
 963         if (name_types.ids[0] != SID_NAME_USER) {
 964                 DEBUG(0,("%s is not a user account (type=%d)\n",
 965                         acct_name, name_types.ids[0]));
 966                 status = NT_STATUS_INVALID_WORKSTATION;
 967                 goto done;
 968         }
 969
 970         user_rid = user_rids.ids[0];
 971
 972         /* Open handle on user */
 973
 974         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
 975                                       &domain_pol,
 976                                       SEC_FLAG_MAXIMUM_ALLOWED,
 977                                       user_rid,
 978                                       &user_pol);
 979         if (!NT_STATUS_IS_OK(status)) {
 980                 goto done;
 981         }
 982
 983         /* Fill in the additional account flags now */
 984
 985         acct_flags |= ACB_PWNOEXP;
 986
 987         /* Set account flags on machine account */
 988         ZERO_STRUCT(user_info.info16);
 989         user_info.info16.acct_flags = acct_flags;
 990
 991         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
 992                                          &user_pol,
 993                                          16,
 994                                          &user_info);
 995
 996         if (!NT_STATUS_IS_OK(status)) {
 997
 998                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
 999                                        &user_pol);
1000
1001                 libnet_join_set_error_string(mem_ctx, r,
1002                         "Failed to set account flags for machine account (%s)\n",
1003                         nt_errstr(status));
1004                 goto done;
1005         }
1006
1007         /* Set password on machine account - first try level 26 */
1008
1009         init_samr_CryptPasswordEx(r->in.machine_password,
1010                                   &cli->user_session_key,
1011                                   &crypt_pwd_ex);
1012
1013         user_info.info26.password = crypt_pwd_ex;
1014         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1015
1016         status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
1017                                           &user_pol,
1018                                           26,
1019                                           &user_info);
1020
1021         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
1022
1023                 /* retry with level 24 */
1024
1025                 init_samr_CryptPassword(r->in.machine_password,
1026                                         &cli->user_session_key,
1027                                         &crypt_pwd);
1028
1029                 user_info.info24.password = crypt_pwd;
1030                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1031
1032                 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
1033                                                   &user_pol,
1034                                                   24,
1035                                                   &user_info);
1036         }
1037
1038         if (!NT_STATUS_IS_OK(status)) {
1039
1040                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
1041                                        &user_pol);
1042
1043                 libnet_join_set_error_string(mem_ctx, r,
1044                         "Failed to set password for machine account (%s)\n",
1045                         nt_errstr(status));
1046                 goto done;
1047         }
1048
1049         status = NT_STATUS_OK;
1050
1051  done:
1052         if (!pipe_hnd) {
1053                 return status;
1054         }
1055
1056         if (is_valid_policy_hnd(&sam_pol)) {
1057                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1058         }
1059         if (is_valid_policy_hnd(&domain_pol)) {
1060                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1061         }
1062         if (is_valid_policy_hnd(&user_pol)) {
1063                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1064         }
1065         TALLOC_FREE(pipe_hnd);
1066
1067         return status;
1068 }
1069
1070 /****************************************************************
1071 ****************************************************************/
1072
1073 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1074                         const char *machine_name,
1075                         const char *dc_name)
1076 {
1077         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1078         struct cli_state *cli = NULL;
1079         struct rpc_pipe_client *pipe_hnd = NULL;
1080         struct rpc_pipe_client *netlogon_pipe = NULL;
1081         NTSTATUS status;
1082         char *machine_password = NULL;
1083         char *machine_account = NULL;
1084
1085         if (!dc_name) {
1086                 return NT_STATUS_INVALID_PARAMETER;
1087         }
1088
1089         if (!secrets_init()) {
1090                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1091         }
1092
1093         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1094                                                           NULL, NULL);
1095         if (!machine_password) {
1096                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1097         }
1098
1099         if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1100                 SAFE_FREE(machine_password);
1101                 return NT_STATUS_NO_MEMORY;
1102         }
1103
1104         status = cli_full_connection(&cli, NULL,
1105                                      dc_name,
1106                                      NULL, 0,
1107                                      "IPC$", "IPC",
1108                                      machine_account,
1109                                      NULL,
1110                                      machine_password,
1111                                      0,
1112                                      Undefined, NULL);
1113         free(machine_account);
1114         free(machine_password);
1115
1116         if (!NT_STATUS_IS_OK(status)) {
1117                 status = cli_full_connection(&cli, NULL,
1118                                              dc_name,
1119                                              NULL, 0,
1120                                              "IPC$", "IPC",
1121                                              "",
1122                                              NULL,
1123                                              "",
1124                                              0,
1125                                              Undefined, NULL);
1126         }
1127
1128         if (!NT_STATUS_IS_OK(status)) {
1129                 return status;
1130         }
1131
1132         status = get_schannel_session_key(cli, netbios_domain_name,
1133                                           &neg_flags, &netlogon_pipe);
1134         if (!NT_STATUS_IS_OK(status)) {
1135                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1136                         cli_shutdown(cli);
1137                         return NT_STATUS_OK;
1138                 }
1139
1140                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1141                         "key from server %s for domain %s. Error was %s\n",
1142                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1143                 cli_shutdown(cli);
1144                 return status;
1145         }
1146
1147         if (!lp_client_schannel()) {
1148                 cli_shutdown(cli);
1149                 return NT_STATUS_OK;
1150         }
1151
1152         status = cli_rpc_pipe_open_schannel_with_key(
1153                 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1154                 DCERPC_AUTH_LEVEL_PRIVACY,
1155                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1156
1157         cli_shutdown(cli);
1158
1159         if (!NT_STATUS_IS_OK(status)) {
1160                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1161                         "on netlogon pipe to server %s for domain %s. "
1162                         "Error was %s\n",
1163                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1164                 return status;
1165         }
1166
1167         return NT_STATUS_OK;
1168 }
1169
1170 /****************************************************************
1171 ****************************************************************/
1172
1173 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1174                                       struct libnet_JoinCtx *r)
1175 {
1176         NTSTATUS status;
1177
1178         status = libnet_join_ok(r->out.netbios_domain_name,
1179                                 r->in.machine_name,
1180                                 r->in.dc_name);
1181         if (!NT_STATUS_IS_OK(status)) {
1182                 libnet_join_set_error_string(mem_ctx, r,
1183                         "failed to verify domain membership after joining: %s",
1184                         get_friendly_nt_error_msg(status));
1185                 return WERR_SETUP_NOT_JOINED;
1186         }
1187
1188         return WERR_OK;
1189 }
1190
1191 /****************************************************************
1192 ****************************************************************/
1193
1194 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1195                                                     struct libnet_UnjoinCtx *r)
1196 {
1197         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1198                 return false;
1199         }
1200
1201         if (!secrets_delete_domain_sid(lp_workgroup())) {
1202                 return false;
1203         }
1204
1205         return true;
1206 }
1207
1208 /****************************************************************
1209 ****************************************************************/
1210
1211 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1212                                              struct libnet_UnjoinCtx *r)
1213 {
1214         struct cli_state *cli = NULL;
1215         struct rpc_pipe_client *pipe_hnd = NULL;
1216         struct policy_handle sam_pol, domain_pol, user_pol;
1217         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1218         char *acct_name;
1219         uint32_t user_rid;
1220         struct lsa_String lsa_acct_name;
1221         struct samr_Ids user_rids;
1222         struct samr_Ids name_types;
1223         union samr_UserInfo *info = NULL;
1224
1225         ZERO_STRUCT(sam_pol);
1226         ZERO_STRUCT(domain_pol);
1227         ZERO_STRUCT(user_pol);
1228
1229         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1230                                             r->in.admin_account,
1231                                             r->in.admin_password,
1232                                             r->in.use_kerberos,
1233                                             &cli);
1234         if (!NT_STATUS_IS_OK(status)) {
1235                 goto done;
1236         }
1237
1238         /* Open the domain */
1239
1240         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1241                                           &pipe_hnd);
1242         if (!NT_STATUS_IS_OK(status)) {
1243                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1244                         nt_errstr(status)));
1245                 goto done;
1246         }
1247
1248         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1249                                       pipe_hnd->desthost,
1250                                       SEC_FLAG_MAXIMUM_ALLOWED,
1251                                       &sam_pol);
1252         if (!NT_STATUS_IS_OK(status)) {
1253                 goto done;
1254         }
1255
1256         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1257                                         &sam_pol,
1258                                         SEC_FLAG_MAXIMUM_ALLOWED,
1259                                         r->in.domain_sid,
1260                                         &domain_pol);
1261         if (!NT_STATUS_IS_OK(status)) {
1262                 goto done;
1263         }
1264
1265         /* Create domain user */
1266
1267         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1268         strlower_m(acct_name);
1269
1270         init_lsa_String(&lsa_acct_name, acct_name);
1271
1272         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1273                                          &domain_pol,
1274                                          1,
1275                                          &lsa_acct_name,
1276                                          &user_rids,
1277                                          &name_types);
1278
1279         if (!NT_STATUS_IS_OK(status)) {
1280                 goto done;
1281         }
1282
1283         if (name_types.ids[0] != SID_NAME_USER) {
1284                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1285                         name_types.ids[0]));
1286                 status = NT_STATUS_INVALID_WORKSTATION;
1287                 goto done;
1288         }
1289
1290         user_rid = user_rids.ids[0];
1291
1292         /* Open handle on user */
1293
1294         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1295                                       &domain_pol,
1296                                       SEC_FLAG_MAXIMUM_ALLOWED,
1297                                       user_rid,
1298                                       &user_pol);
1299         if (!NT_STATUS_IS_OK(status)) {
1300                 goto done;
1301         }
1302
1303         /* Get user info */
1304
1305         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1306                                            &user_pol,
1307                                            16,
1308                                            &info);
1309         if (!NT_STATUS_IS_OK(status)) {
1310                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1311                 goto done;
1312         }
1313
1314         /* now disable and setuser info */
1315
1316         info->info16.acct_flags |= ACB_DISABLED;
1317
1318         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1319                                          &user_pol,
1320                                          16,
1321                                          info);
1322
1323         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1324
1325 done:
1326         if (pipe_hnd) {
1327                 if (is_valid_policy_hnd(&domain_pol)) {
1328                         rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1329                 }
1330                 if (is_valid_policy_hnd(&sam_pol)) {
1331                         rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1332                 }
1333                 TALLOC_FREE(pipe_hnd);
1334         }
1335
1336         if (cli) {
1337                 cli_shutdown(cli);
1338         }
1339
1340         return status;
1341 }
1342
1343 /****************************************************************
1344 ****************************************************************/
1345
1346 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1347 {
1348         WERROR werr;
1349         struct smbconf_ctx *ctx;
1350
1351         werr = smbconf_init_reg(r, &ctx, NULL);
1352         if (!W_ERROR_IS_OK(werr)) {
1353                 goto done;
1354         }
1355
1356         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1357
1358                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1359                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1360
1361                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1362                                                     r->in.domain_name);
1363
1364                 smbconf_delete_global_parameter(ctx, "realm");
1365                 goto done;
1366         }
1367
1368         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1369         W_ERROR_NOT_OK_GOTO_DONE(werr);
1370
1371         werr = smbconf_set_global_parameter(ctx, "workgroup",
1372                                             r->out.netbios_domain_name);
1373         W_ERROR_NOT_OK_GOTO_DONE(werr);
1374
1375         if (r->out.domain_is_ad) {
1376                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1377                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1378
1379                 werr = smbconf_set_global_parameter(ctx, "realm",
1380                                                     r->out.dns_domain_name);
1381                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1382         }
1383
1384  done:
1385         smbconf_shutdown(ctx);
1386         return werr;
1387 }
1388
1389 /****************************************************************
1390 ****************************************************************/
1391
1392 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1393 {
1394         WERROR werr = WERR_OK;
1395         struct smbconf_ctx *ctx;
1396
1397         werr = smbconf_init_reg(r, &ctx, NULL);
1398         if (!W_ERROR_IS_OK(werr)) {
1399                 goto done;
1400         }
1401
1402         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1403
1404                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1405                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1406
1407                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1408                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1409
1410                 smbconf_delete_global_parameter(ctx, "realm");
1411         }
1412
1413  done:
1414         smbconf_shutdown(ctx);
1415         return werr;
1416 }
1417
1418 /****************************************************************
1419 ****************************************************************/
1420
1421 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1422 {
1423         WERROR werr;
1424
1425         if (!W_ERROR_IS_OK(r->out.result)) {
1426                 return r->out.result;
1427         }
1428
1429         if (!r->in.modify_config) {
1430                 return WERR_OK;
1431         }
1432
1433         werr = do_join_modify_vals_config(r);
1434         if (!W_ERROR_IS_OK(werr)) {
1435                 return werr;
1436         }
1437
1438         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1439
1440         r->out.modified_config = true;
1441         r->out.result = werr;
1442
1443         return werr;
1444 }
1445
1446 /****************************************************************
1447 ****************************************************************/
1448
1449 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1450 {
1451         WERROR werr;
1452
1453         if (!W_ERROR_IS_OK(r->out.result)) {
1454                 return r->out.result;
1455         }
1456
1457         if (!r->in.modify_config) {
1458                 return WERR_OK;
1459         }
1460
1461         werr = do_unjoin_modify_vals_config(r);
1462         if (!W_ERROR_IS_OK(werr)) {
1463                 return werr;
1464         }
1465
1466         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1467
1468         r->out.modified_config = true;
1469         r->out.result = werr;
1470
1471         return werr;
1472 }
1473
1474 /****************************************************************
1475 ****************************************************************/
1476
1477 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1478                                    const char *domain_str,
1479                                    const char **domain_p,
1480                                    const char **dc_p)
1481 {
1482         char *domain = NULL;
1483         char *dc = NULL;
1484         const char *p = NULL;
1485
1486         if (!domain_str || !domain_p || !dc_p) {
1487                 return false;
1488         }
1489
1490         p = strchr_m(domain_str, '\\');
1491
1492         if (p != NULL) {
1493                 domain = talloc_strndup(mem_ctx, domain_str,
1494                                          PTR_DIFF(p, domain_str));
1495                 dc = talloc_strdup(mem_ctx, p+1);
1496                 if (!dc) {
1497                         return false;
1498                 }
1499         } else {
1500                 domain = talloc_strdup(mem_ctx, domain_str);
1501                 dc = NULL;
1502         }
1503         if (!domain) {
1504                 return false;
1505         }
1506
1507         *domain_p = domain;
1508
1509         if (!*dc_p && dc) {
1510                 *dc_p = dc;
1511         }
1512
1513         return true;
1514 }
1515
1516 /****************************************************************
1517 ****************************************************************/
1518
1519 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1520                                          struct libnet_JoinCtx *r)
1521 {
1522         if (!r->in.domain_name) {
1523                 libnet_join_set_error_string(mem_ctx, r,
1524                         "No domain name defined");
1525                 return WERR_INVALID_PARAM;
1526         }
1527
1528         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1529                                     &r->in.domain_name,
1530                                     &r->in.dc_name)) {
1531                 libnet_join_set_error_string(mem_ctx, r,
1532                         "Failed to parse domain name");
1533                 return WERR_INVALID_PARAM;
1534         }
1535
1536         if (IS_DC) {
1537                 return WERR_SETUP_DOMAIN_CONTROLLER;
1538         }
1539
1540         if (!secrets_init()) {
1541                 libnet_join_set_error_string(mem_ctx, r,
1542                         "Unable to open secrets database");
1543                 return WERR_CAN_NOT_COMPLETE;
1544         }
1545
1546         return WERR_OK;
1547 }
1548
1549 /****************************************************************
1550 ****************************************************************/
1551
1552 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1553 {
1554         NTSTATUS status;
1555
1556         /* Try adding dom admins to builtin\admins. Only log failures. */
1557         status = create_builtin_administrators(domain_sid);
1558         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1559                 DEBUG(10,("Unable to auto-add domain administrators to "
1560                           "BUILTIN\\Administrators during join because "
1561                           "winbindd must be running."));
1562         } else if (!NT_STATUS_IS_OK(status)) {
1563                 DEBUG(5, ("Failed to auto-add domain administrators to "
1564                           "BUILTIN\\Administrators during join: %s\n",
1565                           nt_errstr(status)));
1566         }
1567
1568         /* Try adding dom users to builtin\users. Only log failures. */
1569         status = create_builtin_users(domain_sid);
1570         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1571                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1572                           "during join because winbindd must be running."));
1573         } else if (!NT_STATUS_IS_OK(status)) {
1574                 DEBUG(5, ("Failed to auto-add domain administrators to "
1575                           "BUILTIN\\Administrators during join: %s\n",
1576                           nt_errstr(status)));
1577         }
1578 }
1579
1580 /****************************************************************
1581 ****************************************************************/
1582
1583 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1584                                           struct libnet_JoinCtx *r)
1585 {
1586         WERROR werr;
1587
1588         if (!W_ERROR_IS_OK(r->out.result)) {
1589                 return r->out.result;
1590         }
1591
1592         werr = do_JoinConfig(r);
1593         if (!W_ERROR_IS_OK(werr)) {
1594                 return werr;
1595         }
1596
1597         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1598                 return WERR_OK;
1599         }
1600
1601         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1602         if (r->out.dns_domain_name) {
1603                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1604         }
1605
1606 #ifdef WITH_ADS
1607         if (r->out.domain_is_ad &&
1608             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1609                 ADS_STATUS ads_status;
1610
1611                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1612                 if (!ADS_ERR_OK(ads_status)) {
1613                         return WERR_GENERAL_FAILURE;
1614                 }
1615         }
1616 #endif /* WITH_ADS */
1617
1618         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1619
1620         return WERR_OK;
1621 }
1622
1623 /****************************************************************
1624 ****************************************************************/
1625
1626 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1627 {
1628         const char *krb5_cc_env = NULL;
1629
1630         if (r->in.ads) {
1631                 ads_destroy(&r->in.ads);
1632         }
1633
1634         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1635         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1636                 unsetenv(KRB5_ENV_CCNAME);
1637         }
1638
1639         return 0;
1640 }
1641
1642 /****************************************************************
1643 ****************************************************************/
1644
1645 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1646 {
1647         const char *krb5_cc_env = NULL;
1648
1649         if (r->in.ads) {
1650                 ads_destroy(&r->in.ads);
1651         }
1652
1653         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1654         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1655                 unsetenv(KRB5_ENV_CCNAME);
1656         }
1657
1658         return 0;
1659 }
1660
1661 /****************************************************************
1662 ****************************************************************/
1663
1664 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1665                            struct libnet_JoinCtx **r)
1666 {
1667         struct libnet_JoinCtx *ctx;
1668         const char *krb5_cc_env = NULL;
1669
1670         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1671         if (!ctx) {
1672                 return WERR_NOMEM;
1673         }
1674
1675         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1676
1677         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1678         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1679
1680         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1681         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1682                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1683                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1684                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1685         }
1686
1687         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1688
1689         *r = ctx;
1690
1691         return WERR_OK;
1692 }
1693
1694 /****************************************************************
1695 ****************************************************************/
1696
1697 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1698                              struct libnet_UnjoinCtx **r)
1699 {
1700         struct libnet_UnjoinCtx *ctx;
1701         const char *krb5_cc_env = NULL;
1702
1703         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1704         if (!ctx) {
1705                 return WERR_NOMEM;
1706         }
1707
1708         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1709
1710         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1711         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1712
1713         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1714         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1715                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1716                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1717                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1718         }
1719
1720         *r = ctx;
1721
1722         return WERR_OK;
1723 }
1724
1725 /****************************************************************
1726 ****************************************************************/
1727
1728 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1729                                        struct libnet_JoinCtx *r)
1730 {
1731         bool valid_security = false;
1732         bool valid_workgroup = false;
1733         bool valid_realm = false;
1734
1735         /* check if configuration is already set correctly */
1736
1737         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1738
1739         switch (r->out.domain_is_ad) {
1740                 case false:
1741                         valid_security = (lp_security() == SEC_DOMAIN);
1742                         if (valid_workgroup && valid_security) {
1743                                 /* nothing to be done */
1744                                 return WERR_OK;
1745                         }
1746                         break;
1747                 case true:
1748                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1749                         switch (lp_security()) {
1750                         case SEC_DOMAIN:
1751                         case SEC_ADS:
1752                                 valid_security = true;
1753                         }
1754
1755                         if (valid_workgroup && valid_realm && valid_security) {
1756                                 /* nothing to be done */
1757                                 return WERR_OK;
1758                         }
1759                         break;
1760         }
1761
1762         /* check if we are supposed to manipulate configuration */
1763
1764         if (!r->in.modify_config) {
1765
1766                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1767
1768                 if (!valid_workgroup) {
1769                         wrong_conf = talloc_asprintf_append(wrong_conf,
1770                                 "\"workgroup\" set to '%s', should be '%s'",
1771                                 lp_workgroup(), r->out.netbios_domain_name);
1772                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1773                 }
1774
1775                 if (!valid_realm) {
1776                         wrong_conf = talloc_asprintf_append(wrong_conf,
1777                                 "\"realm\" set to '%s', should be '%s'",
1778                                 lp_realm(), r->out.dns_domain_name);
1779                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1780                 }
1781
1782                 if (!valid_security) {
1783                         const char *sec = NULL;
1784                         switch (lp_security()) {
1785                         case SEC_SHARE: sec = "share"; break;
1786                         case SEC_USER:  sec = "user"; break;
1787                         case SEC_DOMAIN: sec = "domain"; break;
1788                         case SEC_ADS: sec = "ads"; break;
1789                         }
1790                         wrong_conf = talloc_asprintf_append(wrong_conf,
1791                                 "\"security\" set to '%s', should be %s",
1792                                 sec, r->out.domain_is_ad ?
1793                                 "either 'domain' or 'ads'" : "'domain'");
1794                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1795                 }
1796
1797                 libnet_join_set_error_string(mem_ctx, r,
1798                         "Invalid configuration (%s) and configuration modification "
1799                         "was not requested", wrong_conf);
1800                 return WERR_CAN_NOT_COMPLETE;
1801         }
1802
1803         /* check if we are able to manipulate configuration */
1804
1805         if (!lp_config_backend_is_registry()) {
1806                 libnet_join_set_error_string(mem_ctx, r,
1807                         "Configuration manipulation requested but not "
1808                         "supported by backend");
1809                 return WERR_NOT_SUPPORTED;
1810         }
1811
1812         return WERR_OK;
1813 }
1814
1815 /****************************************************************
1816 ****************************************************************/
1817
1818 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1819                                 struct libnet_JoinCtx *r)
1820 {
1821         NTSTATUS status;
1822         WERROR werr;
1823         struct cli_state *cli = NULL;
1824 #ifdef WITH_ADS
1825         ADS_STATUS ads_status;
1826 #endif /* WITH_ADS */
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_FORCE_REDISCOVERY |
1837                                      DS_DIRECTORY_SERVICE_REQUIRED |
1838                                      DS_WRITABLE_REQUIRED |
1839                                      DS_RETURN_DNS_NAME,
1840                                      &info);
1841                 if (!NT_STATUS_IS_OK(status)) {
1842                         libnet_join_set_error_string(mem_ctx, r,
1843                                 "failed to find DC for domain %s",
1844                                 r->in.domain_name,
1845                                 get_friendly_nt_error_msg(status));
1846                         return WERR_DCNOTFOUND;
1847                 }
1848
1849                 dc = strip_hostname(info->dc_unc);
1850                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1851                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1852         }
1853
1854         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1855         if (!NT_STATUS_IS_OK(status)) {
1856                 libnet_join_set_error_string(mem_ctx, r,
1857                         "failed to lookup DC info for domain '%s' over rpc: %s",
1858                         r->in.domain_name, get_friendly_nt_error_msg(status));
1859                 return ntstatus_to_werror(status);
1860         }
1861
1862         werr = libnet_join_check_config(mem_ctx, r);
1863         if (!W_ERROR_IS_OK(werr)) {
1864                 goto done;
1865         }
1866
1867 #ifdef WITH_ADS
1868         if (r->out.domain_is_ad && r->in.account_ou &&
1869             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1870
1871                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1872                 if (!ADS_ERR_OK(ads_status)) {
1873                         return WERR_DEFAULT_JOIN_REQUIRED;
1874                 }
1875
1876                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1877                 if (!ADS_ERR_OK(ads_status)) {
1878                         libnet_join_set_error_string(mem_ctx, r,
1879                                 "failed to precreate account in ou %s: %s",
1880                                 r->in.account_ou,
1881                                 ads_errstr(ads_status));
1882                         return WERR_DEFAULT_JOIN_REQUIRED;
1883                 }
1884
1885                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1886         }
1887 #endif /* WITH_ADS */
1888
1889         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
1890             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
1891                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
1892         } else {
1893                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
1894         }
1895         if (!NT_STATUS_IS_OK(status)) {
1896                 libnet_join_set_error_string(mem_ctx, r,
1897                         "failed to join domain '%s' over rpc: %s",
1898                         r->in.domain_name, get_friendly_nt_error_msg(status));
1899                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1900                         return WERR_SETUP_ALREADY_JOINED;
1901                 }
1902                 werr = ntstatus_to_werror(status);
1903                 goto done;
1904         }
1905
1906         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1907                 werr = WERR_SETUP_NOT_JOINED;
1908                 goto done;
1909         }
1910
1911         werr = WERR_OK;
1912
1913  done:
1914         if (cli) {
1915                 cli_shutdown(cli);
1916         }
1917
1918         return werr;
1919 }
1920
1921 /****************************************************************
1922 ****************************************************************/
1923
1924 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
1925                                    struct libnet_JoinCtx *r)
1926 {
1927         WERROR werr;
1928         struct libnet_UnjoinCtx *u = NULL;
1929
1930         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
1931         if (!W_ERROR_IS_OK(werr)) {
1932                 return werr;
1933         }
1934
1935         u->in.debug             = r->in.debug;
1936         u->in.dc_name           = r->in.dc_name;
1937         u->in.domain_name       = r->in.domain_name;
1938         u->in.admin_account     = r->in.admin_account;
1939         u->in.admin_password    = r->in.admin_password;
1940         u->in.modify_config     = r->in.modify_config;
1941         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
1942                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
1943
1944         werr = libnet_Unjoin(mem_ctx, u);
1945         TALLOC_FREE(u);
1946
1947         return werr;
1948 }
1949
1950 /****************************************************************
1951 ****************************************************************/
1952
1953 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1954                    struct libnet_JoinCtx *r)
1955 {
1956         WERROR werr;
1957
1958         if (r->in.debug) {
1959                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1960         }
1961
1962         werr = libnet_join_pre_processing(mem_ctx, r);
1963         if (!W_ERROR_IS_OK(werr)) {
1964                 goto done;
1965         }
1966
1967         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1968                 werr = libnet_DomainJoin(mem_ctx, r);
1969                 if (!W_ERROR_IS_OK(werr)) {
1970                         goto done;
1971                 }
1972         }
1973
1974         werr = libnet_join_post_processing(mem_ctx, r);
1975         if (!W_ERROR_IS_OK(werr)) {
1976                 goto done;
1977         }
1978
1979         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1980                 werr = libnet_join_post_verify(mem_ctx, r);
1981                 if (!W_ERROR_IS_OK(werr)) {
1982                         libnet_join_rollback(mem_ctx, r);
1983                 }
1984         }
1985
1986  done:
1987         r->out.result = werr;
1988
1989         if (r->in.debug) {
1990                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1991         }
1992         return werr;
1993 }
1994
1995 /****************************************************************
1996 ****************************************************************/
1997
1998 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1999                                   struct libnet_UnjoinCtx *r)
2000 {
2001         NTSTATUS status;
2002
2003         if (!r->in.domain_sid) {
2004                 struct dom_sid sid;
2005                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2006                         libnet_unjoin_set_error_string(mem_ctx, r,
2007                                 "Unable to fetch domain sid: are we joined?");
2008                         return WERR_SETUP_NOT_JOINED;
2009                 }
2010                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
2011                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2012         }
2013
2014         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2015             !r->in.delete_machine_account) {
2016                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2017                 return WERR_OK;
2018         }
2019
2020         if (!r->in.dc_name) {
2021                 struct netr_DsRGetDCNameInfo *info;
2022                 const char *dc;
2023                 status = dsgetdcname(mem_ctx,
2024                                      r->in.msg_ctx,
2025                                      r->in.domain_name,
2026                                      NULL,
2027                                      NULL,
2028                                      DS_DIRECTORY_SERVICE_REQUIRED |
2029                                      DS_WRITABLE_REQUIRED |
2030                                      DS_RETURN_DNS_NAME,
2031                                      &info);
2032                 if (!NT_STATUS_IS_OK(status)) {
2033                         libnet_unjoin_set_error_string(mem_ctx, r,
2034                                 "failed to find DC for domain %s",
2035                                 r->in.domain_name,
2036                                 get_friendly_nt_error_msg(status));
2037                         return WERR_DCNOTFOUND;
2038                 }
2039
2040                 dc = strip_hostname(info->dc_unc);
2041                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2042                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2043         }
2044
2045 #ifdef WITH_ADS
2046         /* for net ads leave, try to delete the account.  If it works,
2047            no sense in disabling.  If it fails, we can still try to
2048            disable it. jmcd */
2049
2050         if (r->in.delete_machine_account) {
2051                 ADS_STATUS ads_status;
2052                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2053                 if (ADS_ERR_OK(ads_status)) {
2054                         /* dirty hack */
2055                         r->out.dns_domain_name =
2056                                 talloc_strdup(mem_ctx,
2057                                               r->in.ads->server.realm);
2058                         ads_status =
2059                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2060                 }
2061                 if (!ADS_ERR_OK(ads_status)) {
2062                         libnet_unjoin_set_error_string(mem_ctx, r,
2063                                 "failed to remove machine account from AD: %s",
2064                                 ads_errstr(ads_status));
2065                 } else {
2066                         r->out.deleted_machine_account = true;
2067                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2068                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2069                         return WERR_OK;
2070                 }
2071         }
2072 #endif /* WITH_ADS */
2073
2074         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2075            "disable".  */
2076         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2077                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2078                 if (!NT_STATUS_IS_OK(status)) {
2079                         libnet_unjoin_set_error_string(mem_ctx, r,
2080                                 "failed to disable machine account via rpc: %s",
2081                                 get_friendly_nt_error_msg(status));
2082                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2083                                 return WERR_SETUP_NOT_JOINED;
2084                         }
2085                         return ntstatus_to_werror(status);
2086                 }
2087
2088                 r->out.disabled_machine_account = true;
2089         }
2090
2091         /* If disable succeeded or was not requested at all, we
2092            should be getting rid of our end of things */
2093
2094         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2095
2096         return WERR_OK;
2097 }
2098
2099 /****************************************************************
2100 ****************************************************************/
2101
2102 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2103                                            struct libnet_UnjoinCtx *r)
2104 {
2105         if (!r->in.domain_name) {
2106                 libnet_unjoin_set_error_string(mem_ctx, r,
2107                         "No domain name defined");
2108                 return WERR_INVALID_PARAM;
2109         }
2110
2111         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2112                                     &r->in.domain_name,
2113                                     &r->in.dc_name)) {
2114                 libnet_unjoin_set_error_string(mem_ctx, r,
2115                         "Failed to parse domain name");
2116                 return WERR_INVALID_PARAM;
2117         }
2118
2119         if (IS_DC) {
2120                 return WERR_SETUP_DOMAIN_CONTROLLER;
2121         }
2122
2123         if (!secrets_init()) {
2124                 libnet_unjoin_set_error_string(mem_ctx, r,
2125                         "Unable to open secrets database");
2126                 return WERR_CAN_NOT_COMPLETE;
2127         }
2128
2129         return WERR_OK;
2130 }
2131
2132 /****************************************************************
2133 ****************************************************************/
2134
2135 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2136                                             struct libnet_UnjoinCtx *r)
2137 {
2138         saf_delete(r->out.netbios_domain_name);
2139         saf_delete(r->out.dns_domain_name);
2140
2141         return libnet_unjoin_config(r);
2142 }
2143
2144 /****************************************************************
2145 ****************************************************************/
2146
2147 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2148                      struct libnet_UnjoinCtx *r)
2149 {
2150         WERROR werr;
2151
2152         if (r->in.debug) {
2153                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2154         }
2155
2156         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2157         if (!W_ERROR_IS_OK(werr)) {
2158                 goto done;
2159         }
2160
2161         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2162                 werr = libnet_DomainUnjoin(mem_ctx, r);
2163                 if (!W_ERROR_IS_OK(werr)) {
2164                         libnet_unjoin_config(r);
2165                         goto done;
2166                 }
2167         }
2168
2169         werr = libnet_unjoin_post_processing(mem_ctx, r);
2170         if (!W_ERROR_IS_OK(werr)) {
2171                 goto done;
2172         }
2173
2174  done:
2175         r->out.result = werr;
2176
2177         if (r->in.debug) {
2178                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2179         }
2180
2181         return werr;
2182 }