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
  37 /****************************************************************
  38 ****************************************************************/
  39
  40 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  41         do { \
  42                 char *str = NULL; \
  43                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  44                 DEBUG(1,("libnet_Join:\n%s", str)); \
  45                 TALLOC_FREE(str); \
  46         } while (0)
  47
  48 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  49         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  50 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  51         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  52
  53 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  54         do { \
  55                 char *str = NULL; \
  56                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  57                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  58                 TALLOC_FREE(str); \
  59         } while (0)
  60
  61 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  62         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  63 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  64         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  65
  66 /****************************************************************
  67 ****************************************************************/
  68
  69 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  70                                          struct libnet_JoinCtx *r,
  71                                          const char *format, ...)
  72 {
  73         va_list args;
  74
  75         if (r->out.error_string) {
  76                 return;
  77         }
  78
  79         va_start(args, format);
  80         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  81         va_end(args);
  82 }
  83
  84 /****************************************************************
  85 ****************************************************************/
  86
  87 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  88                                            struct libnet_UnjoinCtx *r,
  89                                            const char *format, ...)
  90 {
  91         va_list args;
  92
  93         if (r->out.error_string) {
  94                 return;
  95         }
  96
  97         va_start(args, format);
  98         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  99         va_end(args);
 100 }
 101
 102 #ifdef WITH_ADS
 103
 104 /****************************************************************
 105 ****************************************************************/
 106
 107 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 108                                      const char *netbios_domain_name,
 109                                      const char *dc_name,
 110                                      const char *user_name,
 111                                      const char *password,
 112                                      ADS_STRUCT **ads)
 113 {
 114         ADS_STATUS status;
 115         ADS_STRUCT *my_ads = NULL;
 116
 117         my_ads = ads_init(dns_domain_name,
 118                           netbios_domain_name,
 119                           dc_name);
 120         if (!my_ads) {
 121                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 122         }
 123
 124         if (user_name) {
 125                 SAFE_FREE(my_ads->auth.user_name);
 126                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 127         }
 128
 129         if (password) {
 130                 SAFE_FREE(my_ads->auth.password);
 131                 my_ads->auth.password = SMB_STRDUP(password);
 132         }
 133
 134         status = ads_connect_user_creds(my_ads);
 135         if (!ADS_ERR_OK(status)) {
 136                 ads_destroy(&my_ads);
 137                 return status;
 138         }
 139
 140         *ads = my_ads;
 141         return ADS_SUCCESS;
 142 }
 143
 144 /****************************************************************
 145 ****************************************************************/
 146
 147 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 148                                           struct libnet_JoinCtx *r)
 149 {
 150         ADS_STATUS status;
 151
 152         status = libnet_connect_ads(r->out.dns_domain_name,
 153                                     r->out.netbios_domain_name,
 154                                     r->in.dc_name,
 155                                     r->in.admin_account,
 156                                     r->in.admin_password,
 157                                     &r->in.ads);
 158         if (!ADS_ERR_OK(status)) {
 159                 libnet_join_set_error_string(mem_ctx, r,
 160                         "failed to connect to AD: %s",
 161                         ads_errstr(status));
 162                 return status;
 163         }
 164
 165         if (!r->out.netbios_domain_name) {
 166                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 167                                                            r->in.ads->server.workgroup);
 168                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 169         }
 170
 171         if (!r->out.dns_domain_name) {
 172                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 173                                                        r->in.ads->config.realm);
 174                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 175         }
 176
 177         r->out.domain_is_ad = true;
 178
 179         return ADS_SUCCESS;
 180 }
 181
 182 /****************************************************************
 183 ****************************************************************/
 184
 185 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 186                                             struct libnet_UnjoinCtx *r)
 187 {
 188         ADS_STATUS status;
 189
 190         status = libnet_connect_ads(r->in.domain_name,
 191                                     r->in.domain_name,
 192                                     r->in.dc_name,
 193                                     r->in.admin_account,
 194                                     r->in.admin_password,
 195                                     &r->in.ads);
 196         if (!ADS_ERR_OK(status)) {
 197                 libnet_unjoin_set_error_string(mem_ctx, r,
 198                         "failed to connect to AD: %s",
 199                         ads_errstr(status));
 200         }
 201
 202         return status;
 203 }
 204
 205 /****************************************************************
 206  join a domain using ADS (LDAP mods)
 207 ****************************************************************/
 208
 209 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 210                                                      struct libnet_JoinCtx *r)
 211 {
 212         ADS_STATUS status;
 213         LDAPMessage *res = NULL;
 214         const char *attrs[] = { "dn", NULL };
 215         bool moved = false;
 216
 217         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 218         if (!ADS_ERR_OK(status)) {
 219                 return status;
 220         }
 221
 222         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 223         if (!ADS_ERR_OK(status)) {
 224                 return status;
 225         }
 226
 227         if (ads_count_replies(r->in.ads, res) != 1) {
 228                 ads_msgfree(r->in.ads, res);
 229                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 230         }
 231
 232         ads_msgfree(r->in.ads, res);
 233
 234         /* Attempt to create the machine account and bail if this fails.
 235            Assume that the admin wants exactly what they requested */
 236
 237         status = ads_create_machine_acct(r->in.ads,
 238                                          r->in.machine_name,
 239                                          r->in.account_ou);
 240
 241         if (ADS_ERR_OK(status)) {
 242                 DEBUG(1,("machine account creation created\n"));
 243                 return status;
 244         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 245                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 246                 status = ADS_SUCCESS;
 247         }
 248
 249         if (!ADS_ERR_OK(status)) {
 250                 DEBUG(1,("machine account creation failed\n"));
 251                 return status;
 252         }
 253
 254         status = ads_move_machine_acct(r->in.ads,
 255                                        r->in.machine_name,
 256                                        r->in.account_ou,
 257                                        &moved);
 258         if (!ADS_ERR_OK(status)) {
 259                 DEBUG(1,("failure to locate/move pre-existing "
 260                         "machine account\n"));
 261                 return status;
 262         }
 263
 264         DEBUG(1,("The machine account %s the specified OU.\n",
 265                 moved ? "was moved into" : "already exists in"));
 266
 267         return status;
 268 }
 269
 270 /****************************************************************
 271 ****************************************************************/
 272
 273 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 274                                                     struct libnet_UnjoinCtx *r)
 275 {
 276         ADS_STATUS status;
 277
 278         if (!r->in.ads) {
 279                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 280                 if (!ADS_ERR_OK(status)) {
 281                         libnet_unjoin_set_error_string(mem_ctx, r,
 282                                 "failed to connect to AD: %s",
 283                                 ads_errstr(status));
 284                         return status;
 285                 }
 286         }
 287
 288         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 289         if (!ADS_ERR_OK(status)) {
 290                 libnet_unjoin_set_error_string(mem_ctx, r,
 291                         "failed to leave realm: %s",
 292                         ads_errstr(status));
 293                 return status;
 294         }
 295
 296         return ADS_SUCCESS;
 297 }
 298
 299 /****************************************************************
 300 ****************************************************************/
 301
 302 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 303                                                 struct libnet_JoinCtx *r)
 304 {
 305         ADS_STATUS status;
 306         LDAPMessage *res = NULL;
 307         char *dn = NULL;
 308
 309         if (!r->in.machine_name) {
 310                 return ADS_ERROR(LDAP_NO_MEMORY);
 311         }
 312
 313         status = ads_find_machine_acct(r->in.ads,
 314                                        &res,
 315                                        r->in.machine_name);
 316         if (!ADS_ERR_OK(status)) {
 317                 return status;
 318         }
 319
 320         if (ads_count_replies(r->in.ads, res) != 1) {
 321                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 322                 goto done;
 323         }
 324
 325         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 326         if (!dn) {
 327                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 328                 goto done;
 329         }
 330
 331         r->out.dn = talloc_strdup(mem_ctx, dn);
 332         if (!r->out.dn) {
 333                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 334                 goto done;
 335         }
 336
 337  done:
 338         ads_msgfree(r->in.ads, res);
 339         TALLOC_FREE(dn);
 340
 341         return status;
 342 }
 343
 344 /****************************************************************
 345  Set a machines dNSHostName and servicePrincipalName attributes
 346 ****************************************************************/
 347
 348 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 349                                               struct libnet_JoinCtx *r)
 350 {
 351         ADS_STATUS status;
 352         ADS_MODLIST mods;
 353         fstring my_fqdn;
 354         const char *spn_array[3] = {NULL, NULL, NULL};
 355         char *spn = NULL;
 356
 357         /* Find our DN */
 358
 359         status = libnet_join_find_machine_acct(mem_ctx, r);
 360         if (!ADS_ERR_OK(status)) {
 361                 return status;
 362         }
 363
 364         /* Windows only creates HOST/shortname & HOST/fqdn. */
 365
 366         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 367         if (!spn) {
 368                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 369         }
 370         strupper_m(spn);
 371         spn_array[0] = spn;
 372
 373         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 374             || (strchr(my_fqdn, '.') == NULL)) {
 375                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 376                              r->out.dns_domain_name);
 377         }
 378
 379         strlower_m(my_fqdn);
 380
 381         if (!strequal(my_fqdn, r->in.machine_name)) {
 382                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 383                 if (!spn) {
 384                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 385                 }
 386                 spn_array[1] = spn;
 387         }
 388
 389         mods = ads_init_mods(mem_ctx);
 390         if (!mods) {
 391                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 392         }
 393
 394         /* fields of primary importance */
 395
 396         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 397         if (!ADS_ERR_OK(status)) {
 398                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 399         }
 400
 401         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 402                                  spn_array);
 403         if (!ADS_ERR_OK(status)) {
 404                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 405         }
 406
 407         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 408 }
 409
 410 /****************************************************************
 411 ****************************************************************/
 412
 413 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 414                                               struct libnet_JoinCtx *r)
 415 {
 416         ADS_STATUS status;
 417         ADS_MODLIST mods;
 418
 419         if (!r->in.create_upn) {
 420                 return ADS_SUCCESS;
 421         }
 422
 423         /* Find our DN */
 424
 425         status = libnet_join_find_machine_acct(mem_ctx, r);
 426         if (!ADS_ERR_OK(status)) {
 427                 return status;
 428         }
 429
 430         if (!r->in.upn) {
 431                 r->in.upn = talloc_asprintf(mem_ctx,
 432                                             "host/%s@%s",
 433                                             r->in.machine_name,
 434                                             r->out.dns_domain_name);
 435                 if (!r->in.upn) {
 436                         return ADS_ERROR(LDAP_NO_MEMORY);
 437                 }
 438         }
 439
 440         /* now do the mods */
 441
 442         mods = ads_init_mods(mem_ctx);
 443         if (!mods) {
 444                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 445         }
 446
 447         /* fields of primary importance */
 448
 449         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 450         if (!ADS_ERR_OK(status)) {
 451                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 452         }
 453
 454         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 455 }
 456
 457
 458 /****************************************************************
 459 ****************************************************************/
 460
 461 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 462                                                 struct libnet_JoinCtx *r)
 463 {
 464         ADS_STATUS status;
 465         ADS_MODLIST mods;
 466         char *os_sp = NULL;
 467
 468         if (!r->in.os_name || !r->in.os_version ) {
 469                 return ADS_SUCCESS;
 470         }
 471
 472         /* Find our DN */
 473
 474         status = libnet_join_find_machine_acct(mem_ctx, r);
 475         if (!ADS_ERR_OK(status)) {
 476                 return status;
 477         }
 478
 479         /* now do the mods */
 480
 481         mods = ads_init_mods(mem_ctx);
 482         if (!mods) {
 483                 return ADS_ERROR(LDAP_NO_MEMORY);
 484         }
 485
 486         os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
 487         if (!os_sp) {
 488                 return ADS_ERROR(LDAP_NO_MEMORY);
 489         }
 490
 491         /* fields of primary importance */
 492
 493         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 494                              r->in.os_name);
 495         if (!ADS_ERR_OK(status)) {
 496                 return status;
 497         }
 498
 499         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 500                              r->in.os_version);
 501         if (!ADS_ERR_OK(status)) {
 502                 return status;
 503         }
 504
 505         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 506                              os_sp);
 507         if (!ADS_ERR_OK(status)) {
 508                 return status;
 509         }
 510
 511         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 512 }
 513
 514 /****************************************************************
 515 ****************************************************************/
 516
 517 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 518                                       struct libnet_JoinCtx *r)
 519 {
 520         if (!USE_SYSTEM_KEYTAB) {
 521                 return true;
 522         }
 523
 524         if (ads_keytab_create_default(r->in.ads) != 0) {
 525                 return false;
 526         }
 527
 528         return true;
 529 }
 530
 531 /****************************************************************
 532 ****************************************************************/
 533
 534 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 535                                                  struct libnet_JoinCtx *r)
 536 {
 537         uint32_t domain_func;
 538         ADS_STATUS status;
 539         const char *salt = NULL;
 540         char *std_salt = NULL;
 541
 542         status = ads_domain_func_level(r->in.ads, &domain_func);
 543         if (!ADS_ERR_OK(status)) {
 544                 libnet_join_set_error_string(mem_ctx, r,
 545                         "failed to determine domain functional level: %s",
 546                         ads_errstr(status));
 547                 return false;
 548         }
 549
 550         /* go ahead and setup the default salt */
 551
 552         std_salt = kerberos_standard_des_salt();
 553         if (!std_salt) {
 554                 libnet_join_set_error_string(mem_ctx, r,
 555                         "failed to obtain standard DES salt");
 556                 return false;
 557         }
 558
 559         salt = talloc_strdup(mem_ctx, std_salt);
 560         if (!salt) {
 561                 return false;
 562         }
 563
 564         SAFE_FREE(std_salt);
 565
 566         /* if it's a Windows functional domain, we have to look for the UPN */
 567
 568         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 569                 char *upn;
 570
 571                 upn = ads_get_upn(r->in.ads, mem_ctx,
 572                                   r->in.machine_name);
 573                 if (upn) {
 574                         salt = talloc_strdup(mem_ctx, upn);
 575                         if (!salt) {
 576                                 return false;
 577                         }
 578                 }
 579         }
 580
 581         return kerberos_secrets_store_des_salt(salt);
 582 }
 583
 584 /****************************************************************
 585 ****************************************************************/
 586
 587 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 588                                                   struct libnet_JoinCtx *r)
 589 {
 590         ADS_STATUS status;
 591
 592         if (!r->in.ads) {
 593                 status = libnet_join_connect_ads(mem_ctx, r);
 594                 if (!ADS_ERR_OK(status)) {
 595                         return status;
 596                 }
 597         }
 598
 599         status = libnet_join_set_machine_spn(mem_ctx, r);
 600         if (!ADS_ERR_OK(status)) {
 601                 libnet_join_set_error_string(mem_ctx, r,
 602                         "failed to set machine spn: %s",
 603                         ads_errstr(status));
 604                 return status;
 605         }
 606
 607         status = libnet_join_set_os_attributes(mem_ctx, r);
 608         if (!ADS_ERR_OK(status)) {
 609                 libnet_join_set_error_string(mem_ctx, r,
 610                         "failed to set machine os attributes: %s",
 611                         ads_errstr(status));
 612                 return status;
 613         }
 614
 615         status = libnet_join_set_machine_upn(mem_ctx, r);
 616         if (!ADS_ERR_OK(status)) {
 617                 libnet_join_set_error_string(mem_ctx, r,
 618                         "failed to set machine upn: %s",
 619                         ads_errstr(status));
 620                 return status;
 621         }
 622
 623         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 624                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 625         }
 626
 627         if (!libnet_join_create_keytab(mem_ctx, r)) {
 628                 libnet_join_set_error_string(mem_ctx, r,
 629                         "failed to create kerberos keytab");
 630                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 631         }
 632
 633         return ADS_SUCCESS;
 634 }
 635 #endif /* WITH_ADS */
 636
 637 /****************************************************************
 638  Store the machine password and domain SID
 639 ****************************************************************/
 640
 641 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 642                                                  struct libnet_JoinCtx *r)
 643 {
 644         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 645                                       r->out.domain_sid))
 646         {
 647                 DEBUG(1,("Failed to save domain sid\n"));
 648                 return false;
 649         }
 650
 651         if (!secrets_store_machine_password(r->in.machine_password,
 652                                             r->out.netbios_domain_name,
 653                                             r->in.secure_channel_type))
 654         {
 655                 DEBUG(1,("Failed to save machine password\n"));
 656                 return false;
 657         }
 658
 659         return true;
 660 }
 661
 662 /****************************************************************
 663  Connect dc's IPC$ share
 664 ****************************************************************/
 665
 666 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 667                                            const char *user,
 668                                            const char *pass,
 669                                            bool use_kerberos,
 670                                            struct cli_state **cli)
 671 {
 672         int flags = 0;
 673
 674         if (use_kerberos) {
 675                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 676         }
 677
 678         if (use_kerberos && pass) {
 679                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 680         }
 681
 682         return cli_full_connection(cli, NULL,
 683                                    dc,
 684                                    NULL, 0,
 685                                    "IPC$", "IPC",
 686                                    user,
 687                                    NULL,
 688                                    pass,
 689                                    flags,
 690                                    Undefined, NULL);
 691 }
 692
 693 /****************************************************************
 694  Lookup domain dc's info
 695 ****************************************************************/
 696
 697 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 698                                           struct libnet_JoinCtx *r,
 699                                           struct cli_state **cli)
 700 {
 701         struct rpc_pipe_client *pipe_hnd = NULL;
 702         struct policy_handle lsa_pol;
 703         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 704         union lsa_PolicyInformation *info = NULL;
 705
 706         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 707                                             r->in.admin_account,
 708                                             r->in.admin_password,
 709                                             r->in.use_kerberos,
 710                                             cli);
 711         if (!NT_STATUS_IS_OK(status)) {
 712                 goto done;
 713         }
 714
 715         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 716                                           &pipe_hnd);
 717         if (!NT_STATUS_IS_OK(status)) {
 718                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 719                         nt_errstr(status)));
 720                 goto done;
 721         }
 722
 723         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 724                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 725         if (!NT_STATUS_IS_OK(status)) {
 726                 goto done;
 727         }
 728
 729         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
 730                                              &lsa_pol,
 731                                              LSA_POLICY_INFO_DNS,
 732                                              &info);
 733         if (NT_STATUS_IS_OK(status)) {
 734                 r->out.domain_is_ad = true;
 735                 r->out.netbios_domain_name = info->dns.name.string;
 736                 r->out.dns_domain_name = info->dns.dns_domain.string;
 737                 r->out.forest_name = info->dns.dns_forest.string;
 738                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->dns.sid);
 739                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 740         }
 741
 742         if (!NT_STATUS_IS_OK(status)) {
 743                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
 744                                                     &lsa_pol,
 745                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 746                                                     &info);
 747                 if (!NT_STATUS_IS_OK(status)) {
 748                         goto done;
 749                 }
 750
 751                 r->out.netbios_domain_name = info->account_domain.name.string;
 752                 r->out.domain_sid = sid_dup_talloc(mem_ctx, info->account_domain.sid);
 753                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 754         }
 755
 756         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
 757         TALLOC_FREE(pipe_hnd);
 758
 759  done:
 760         return status;
 761 }
 762
 763 /****************************************************************
 764  Do the domain join unsecure
 765 ****************************************************************/
 766
 767 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 768                                                     struct libnet_JoinCtx *r,
 769                                                     struct cli_state *cli)
 770 {
 771         struct rpc_pipe_client *pipe_hnd = NULL;
 772         unsigned char orig_trust_passwd_hash[16];
 773         unsigned char new_trust_passwd_hash[16];
 774         fstring trust_passwd;
 775         NTSTATUS status;
 776
 777         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
 778                                           &pipe_hnd);
 779         if (!NT_STATUS_IS_OK(status)) {
 780                 return status;
 781         }
 782
 783         if (!r->in.machine_password) {
 784                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 785                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 786         }
 787
 788         E_md4hash(r->in.machine_password, new_trust_passwd_hash);
 789
 790         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 791         fstrcpy(trust_passwd, r->in.admin_password);
 792         strlower_m(trust_passwd);
 793
 794         /*
 795          * Machine names can be 15 characters, but the max length on
 796          * a password is 14.  --jerry
 797          */
 798
 799         trust_passwd[14] = '\0';
 800
 801         E_md4hash(trust_passwd, orig_trust_passwd_hash);
 802
 803         status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
 804                                                     r->in.machine_name,
 805                                                     orig_trust_passwd_hash,
 806                                                     r->in.machine_password,
 807                                                     new_trust_passwd_hash,
 808                                                     r->in.secure_channel_type);
 809
 810         return status;
 811 }
 812
 813 /****************************************************************
 814  Do the domain join
 815 ****************************************************************/
 816
 817 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 818                                            struct libnet_JoinCtx *r,
 819                                            struct cli_state *cli)
 820 {
 821         struct rpc_pipe_client *pipe_hnd = NULL;
 822         struct policy_handle sam_pol, domain_pol, user_pol;
 823         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 824         char *acct_name;
 825         struct lsa_String lsa_acct_name;
 826         uint32_t user_rid;
 827         uint32_t acct_flags = ACB_WSTRUST;
 828         struct samr_Ids user_rids;
 829         struct samr_Ids name_types;
 830         union samr_UserInfo user_info;
 831
 832         struct samr_CryptPassword crypt_pwd;
 833         struct samr_CryptPasswordEx crypt_pwd_ex;
 834
 835         ZERO_STRUCT(sam_pol);
 836         ZERO_STRUCT(domain_pol);
 837         ZERO_STRUCT(user_pol);
 838
 839         switch (r->in.secure_channel_type) {
 840         case SEC_CHAN_WKSTA:
 841                 acct_flags = ACB_WSTRUST;
 842                 break;
 843         case SEC_CHAN_BDC:
 844                 acct_flags = ACB_SVRTRUST;
 845                 break;
 846         default:
 847                 return NT_STATUS_INVALID_PARAMETER;
 848         }
 849
 850         if (!r->in.machine_password) {
 851                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 852                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 853         }
 854
 855         /* Open the domain */
 856
 857         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 858                                           &pipe_hnd);
 859         if (!NT_STATUS_IS_OK(status)) {
 860                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 861                         nt_errstr(status)));
 862                 goto done;
 863         }
 864
 865         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
 866                                       pipe_hnd->desthost,
 867                                       SAMR_ACCESS_ENUM_DOMAINS
 868                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
 869                                       &sam_pol);
 870         if (!NT_STATUS_IS_OK(status)) {
 871                 goto done;
 872         }
 873
 874         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
 875                                         &sam_pol,
 876                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
 877                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
 878                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 879                                         r->out.domain_sid,
 880                                         &domain_pol);
 881         if (!NT_STATUS_IS_OK(status)) {
 882                 goto done;
 883         }
 884
 885         /* Create domain user */
 886
 887         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 888         strlower_m(acct_name);
 889
 890         init_lsa_String(&lsa_acct_name, acct_name);
 891
 892         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 893                 uint32_t access_desired =
 894                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 895                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 896                         SAMR_USER_ACCESS_SET_PASSWORD |
 897                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 898                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 899                 uint32_t access_granted = 0;
 900
 901                 DEBUG(10,("Creating account with desired access mask: %d\n",
 902                         access_desired));
 903
 904                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
 905                                                  &domain_pol,
 906                                                  &lsa_acct_name,
 907                                                  acct_flags,
 908                                                  access_desired,
 909                                                  &user_pol,
 910                                                  &access_granted,
 911                                                  &user_rid);
 912                 if (!NT_STATUS_IS_OK(status) &&
 913                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 914
 915                         DEBUG(10,("Creation of workstation account failed: %s\n",
 916                                 nt_errstr(status)));
 917
 918                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 919                            username/password combo but the user does not have
 920                            administrator access. */
 921
 922                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 923                                 libnet_join_set_error_string(mem_ctx, r,
 924                                         "User specified does not have "
 925                                         "administrator privileges");
 926                         }
 927
 928                         goto done;
 929                 }
 930
 931                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 932                         if (!(r->in.join_flags &
 933                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 934                                 goto done;
 935                         }
 936                 }
 937
 938                 /* We *must* do this.... don't ask... */
 939
 940                 if (NT_STATUS_IS_OK(status)) {
 941                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 942                 }
 943         }
 944
 945         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
 946                                          &domain_pol,
 947                                          1,
 948                                          &lsa_acct_name,
 949                                          &user_rids,
 950                                          &name_types);
 951         if (!NT_STATUS_IS_OK(status)) {
 952                 goto done;
 953         }
 954
 955         if (name_types.ids[0] != SID_NAME_USER) {
 956                 DEBUG(0,("%s is not a user account (type=%d)\n",
 957                         acct_name, name_types.ids[0]));
 958                 status = NT_STATUS_INVALID_WORKSTATION;
 959                 goto done;
 960         }
 961
 962         user_rid = user_rids.ids[0];
 963
 964         /* Open handle on user */
 965
 966         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
 967                                       &domain_pol,
 968                                       SEC_FLAG_MAXIMUM_ALLOWED,
 969                                       user_rid,
 970                                       &user_pol);
 971         if (!NT_STATUS_IS_OK(status)) {
 972                 goto done;
 973         }
 974
 975         /* Fill in the additional account flags now */
 976
 977         acct_flags |= ACB_PWNOEXP;
 978         if (r->out.domain_is_ad) {
 979 #if !defined(ENCTYPE_ARCFOUR_HMAC)
 980                 acct_flags |= ACB_USE_DES_KEY_ONLY;
 981 #endif
 982                 ;;
 983         }
 984
 985         /* Set account flags on machine account */
 986         ZERO_STRUCT(user_info.info16);
 987         user_info.info16.acct_flags = acct_flags;
 988
 989         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
 990                                          &user_pol,
 991                                          16,
 992                                          &user_info);
 993
 994         if (!NT_STATUS_IS_OK(status)) {
 995
 996                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
 997                                        &user_pol);
 998
 999                 libnet_join_set_error_string(mem_ctx, r,
1000                         "Failed to set account flags for machine account (%s)\n",
1001                         nt_errstr(status));
1002                 goto done;
1003         }
1004
1005         /* Set password on machine account - first try level 26 */
1006
1007         init_samr_CryptPasswordEx(r->in.machine_password,
1008                                   &cli->user_session_key,
1009                                   &crypt_pwd_ex);
1010
1011         user_info.info26.password = crypt_pwd_ex;
1012         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1013
1014         status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
1015                                           &user_pol,
1016                                           26,
1017                                           &user_info);
1018
1019         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
1020
1021                 /* retry with level 24 */
1022
1023                 init_samr_CryptPassword(r->in.machine_password,
1024                                         &cli->user_session_key,
1025                                         &crypt_pwd);
1026
1027                 user_info.info24.password = crypt_pwd;
1028                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1029
1030                 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
1031                                                   &user_pol,
1032                                                   24,
1033                                                   &user_info);
1034         }
1035
1036         if (!NT_STATUS_IS_OK(status)) {
1037
1038                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
1039                                        &user_pol);
1040
1041                 libnet_join_set_error_string(mem_ctx, r,
1042                         "Failed to set password for machine account (%s)\n",
1043                         nt_errstr(status));
1044                 goto done;
1045         }
1046
1047         status = NT_STATUS_OK;
1048
1049  done:
1050         if (!pipe_hnd) {
1051                 return status;
1052         }
1053
1054         if (is_valid_policy_hnd(&sam_pol)) {
1055                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1056         }
1057         if (is_valid_policy_hnd(&domain_pol)) {
1058                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1059         }
1060         if (is_valid_policy_hnd(&user_pol)) {
1061                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1062         }
1063         TALLOC_FREE(pipe_hnd);
1064
1065         return status;
1066 }
1067
1068 /****************************************************************
1069 ****************************************************************/
1070
1071 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1072                         const char *machine_name,
1073                         const char *dc_name)
1074 {
1075         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1076         struct cli_state *cli = NULL;
1077         struct rpc_pipe_client *pipe_hnd = NULL;
1078         struct rpc_pipe_client *netlogon_pipe = NULL;
1079         NTSTATUS status;
1080         char *machine_password = NULL;
1081         char *machine_account = NULL;
1082
1083         if (!dc_name) {
1084                 return NT_STATUS_INVALID_PARAMETER;
1085         }
1086
1087         if (!secrets_init()) {
1088                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1089         }
1090
1091         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1092                                                           NULL, NULL);
1093         if (!machine_password) {
1094                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1095         }
1096
1097         if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1098                 SAFE_FREE(machine_password);
1099                 return NT_STATUS_NO_MEMORY;
1100         }
1101
1102         status = cli_full_connection(&cli, NULL,
1103                                      dc_name,
1104                                      NULL, 0,
1105                                      "IPC$", "IPC",
1106                                      machine_account,
1107                                      NULL,
1108                                      machine_password,
1109                                      0,
1110                                      Undefined, NULL);
1111         free(machine_account);
1112         free(machine_password);
1113
1114         if (!NT_STATUS_IS_OK(status)) {
1115                 status = cli_full_connection(&cli, NULL,
1116                                              dc_name,
1117                                              NULL, 0,
1118                                              "IPC$", "IPC",
1119                                              "",
1120                                              NULL,
1121                                              "",
1122                                              0,
1123                                              Undefined, NULL);
1124         }
1125
1126         if (!NT_STATUS_IS_OK(status)) {
1127                 return status;
1128         }
1129
1130         status = get_schannel_session_key(cli, netbios_domain_name,
1131                                           &neg_flags, &netlogon_pipe);
1132         if (!NT_STATUS_IS_OK(status)) {
1133                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1134                         cli_shutdown(cli);
1135                         return NT_STATUS_OK;
1136                 }
1137
1138                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1139                         "key from server %s for domain %s. Error was %s\n",
1140                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1141                 cli_shutdown(cli);
1142                 return status;
1143         }
1144
1145         if (!lp_client_schannel()) {
1146                 cli_shutdown(cli);
1147                 return NT_STATUS_OK;
1148         }
1149
1150         status = cli_rpc_pipe_open_schannel_with_key(
1151                 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1152                 DCERPC_AUTH_LEVEL_PRIVACY,
1153                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1154
1155         cli_shutdown(cli);
1156
1157         if (!NT_STATUS_IS_OK(status)) {
1158                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1159                         "on netlogon pipe to server %s for domain %s. "
1160                         "Error was %s\n",
1161                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1162                 return status;
1163         }
1164
1165         return NT_STATUS_OK;
1166 }
1167
1168 /****************************************************************
1169 ****************************************************************/
1170
1171 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1172                                       struct libnet_JoinCtx *r)
1173 {
1174         NTSTATUS status;
1175
1176         status = libnet_join_ok(r->out.netbios_domain_name,
1177                                 r->in.machine_name,
1178                                 r->in.dc_name);
1179         if (!NT_STATUS_IS_OK(status)) {
1180                 libnet_join_set_error_string(mem_ctx, r,
1181                         "failed to verify domain membership after joining: %s",
1182                         get_friendly_nt_error_msg(status));
1183                 return WERR_SETUP_NOT_JOINED;
1184         }
1185
1186         return WERR_OK;
1187 }
1188
1189 /****************************************************************
1190 ****************************************************************/
1191
1192 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1193                                                     struct libnet_UnjoinCtx *r)
1194 {
1195         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1196                 return false;
1197         }
1198
1199         if (!secrets_delete_domain_sid(lp_workgroup())) {
1200                 return false;
1201         }
1202
1203         return true;
1204 }
1205
1206 /****************************************************************
1207 ****************************************************************/
1208
1209 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1210                                              struct libnet_UnjoinCtx *r)
1211 {
1212         struct cli_state *cli = NULL;
1213         struct rpc_pipe_client *pipe_hnd = NULL;
1214         struct policy_handle sam_pol, domain_pol, user_pol;
1215         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1216         char *acct_name;
1217         uint32_t user_rid;
1218         struct lsa_String lsa_acct_name;
1219         struct samr_Ids user_rids;
1220         struct samr_Ids name_types;
1221         union samr_UserInfo *info = NULL;
1222
1223         ZERO_STRUCT(sam_pol);
1224         ZERO_STRUCT(domain_pol);
1225         ZERO_STRUCT(user_pol);
1226
1227         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1228                                             r->in.admin_account,
1229                                             r->in.admin_password,
1230                                             r->in.use_kerberos,
1231                                             &cli);
1232         if (!NT_STATUS_IS_OK(status)) {
1233                 goto done;
1234         }
1235
1236         /* Open the domain */
1237
1238         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1239                                           &pipe_hnd);
1240         if (!NT_STATUS_IS_OK(status)) {
1241                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1242                         nt_errstr(status)));
1243                 goto done;
1244         }
1245
1246         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1247                                       pipe_hnd->desthost,
1248                                       SEC_FLAG_MAXIMUM_ALLOWED,
1249                                       &sam_pol);
1250         if (!NT_STATUS_IS_OK(status)) {
1251                 goto done;
1252         }
1253
1254         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1255                                         &sam_pol,
1256                                         SEC_FLAG_MAXIMUM_ALLOWED,
1257                                         r->in.domain_sid,
1258                                         &domain_pol);
1259         if (!NT_STATUS_IS_OK(status)) {
1260                 goto done;
1261         }
1262
1263         /* Create domain user */
1264
1265         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1266         strlower_m(acct_name);
1267
1268         init_lsa_String(&lsa_acct_name, acct_name);
1269
1270         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1271                                          &domain_pol,
1272                                          1,
1273                                          &lsa_acct_name,
1274                                          &user_rids,
1275                                          &name_types);
1276
1277         if (!NT_STATUS_IS_OK(status)) {
1278                 goto done;
1279         }
1280
1281         if (name_types.ids[0] != SID_NAME_USER) {
1282                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1283                         name_types.ids[0]));
1284                 status = NT_STATUS_INVALID_WORKSTATION;
1285                 goto done;
1286         }
1287
1288         user_rid = user_rids.ids[0];
1289
1290         /* Open handle on user */
1291
1292         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1293                                       &domain_pol,
1294                                       SEC_FLAG_MAXIMUM_ALLOWED,
1295                                       user_rid,
1296                                       &user_pol);
1297         if (!NT_STATUS_IS_OK(status)) {
1298                 goto done;
1299         }
1300
1301         /* Get user info */
1302
1303         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1304                                            &user_pol,
1305                                            16,
1306                                            &info);
1307         if (!NT_STATUS_IS_OK(status)) {
1308                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1309                 goto done;
1310         }
1311
1312         /* now disable and setuser info */
1313
1314         info->info16.acct_flags |= ACB_DISABLED;
1315
1316         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1317                                          &user_pol,
1318                                          16,
1319                                          info);
1320
1321         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1322
1323 done:
1324         if (pipe_hnd) {
1325                 if (is_valid_policy_hnd(&domain_pol)) {
1326                         rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1327                 }
1328                 if (is_valid_policy_hnd(&sam_pol)) {
1329                         rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1330                 }
1331                 TALLOC_FREE(pipe_hnd);
1332         }
1333
1334         if (cli) {
1335                 cli_shutdown(cli);
1336         }
1337
1338         return status;
1339 }
1340
1341 /****************************************************************
1342 ****************************************************************/
1343
1344 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1345 {
1346         WERROR werr;
1347         struct smbconf_ctx *ctx;
1348
1349         werr = smbconf_init_reg(r, &ctx, NULL);
1350         if (!W_ERROR_IS_OK(werr)) {
1351                 goto done;
1352         }
1353
1354         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1355
1356                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1357                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1358
1359                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1360                                                     r->in.domain_name);
1361
1362                 smbconf_delete_global_parameter(ctx, "realm");
1363                 goto done;
1364         }
1365
1366         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1367         W_ERROR_NOT_OK_GOTO_DONE(werr);
1368
1369         werr = smbconf_set_global_parameter(ctx, "workgroup",
1370                                             r->out.netbios_domain_name);
1371         W_ERROR_NOT_OK_GOTO_DONE(werr);
1372
1373         if (r->out.domain_is_ad) {
1374                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1375                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1376
1377                 werr = smbconf_set_global_parameter(ctx, "realm",
1378                                                     r->out.dns_domain_name);
1379                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1380         }
1381
1382  done:
1383         smbconf_shutdown(ctx);
1384         return werr;
1385 }
1386
1387 /****************************************************************
1388 ****************************************************************/
1389
1390 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1391 {
1392         WERROR werr = WERR_OK;
1393         struct smbconf_ctx *ctx;
1394
1395         werr = smbconf_init_reg(r, &ctx, NULL);
1396         if (!W_ERROR_IS_OK(werr)) {
1397                 goto done;
1398         }
1399
1400         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1401
1402                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1403                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1404
1405                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1406                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1407
1408                 smbconf_delete_global_parameter(ctx, "realm");
1409         }
1410
1411  done:
1412         smbconf_shutdown(ctx);
1413         return werr;
1414 }
1415
1416 /****************************************************************
1417 ****************************************************************/
1418
1419 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1420 {
1421         WERROR werr;
1422
1423         if (!W_ERROR_IS_OK(r->out.result)) {
1424                 return r->out.result;
1425         }
1426
1427         if (!r->in.modify_config) {
1428                 return WERR_OK;
1429         }
1430
1431         werr = do_join_modify_vals_config(r);
1432         if (!W_ERROR_IS_OK(werr)) {
1433                 return werr;
1434         }
1435
1436         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1437
1438         r->out.modified_config = true;
1439         r->out.result = werr;
1440
1441         return werr;
1442 }
1443
1444 /****************************************************************
1445 ****************************************************************/
1446
1447 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1448 {
1449         WERROR werr;
1450
1451         if (!W_ERROR_IS_OK(r->out.result)) {
1452                 return r->out.result;
1453         }
1454
1455         if (!r->in.modify_config) {
1456                 return WERR_OK;
1457         }
1458
1459         werr = do_unjoin_modify_vals_config(r);
1460         if (!W_ERROR_IS_OK(werr)) {
1461                 return werr;
1462         }
1463
1464         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1465
1466         r->out.modified_config = true;
1467         r->out.result = werr;
1468
1469         return werr;
1470 }
1471
1472 /****************************************************************
1473 ****************************************************************/
1474
1475 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1476                                    const char *domain_str,
1477                                    const char **domain_p,
1478                                    const char **dc_p)
1479 {
1480         char *domain = NULL;
1481         char *dc = NULL;
1482         const char *p = NULL;
1483
1484         if (!domain_str || !domain_p || !dc_p) {
1485                 return false;
1486         }
1487
1488         p = strchr_m(domain_str, '\\');
1489
1490         if (p != NULL) {
1491                 domain = talloc_strndup(mem_ctx, domain_str,
1492                                          PTR_DIFF(p, domain_str));
1493                 dc = talloc_strdup(mem_ctx, p+1);
1494                 if (!dc) {
1495                         return false;
1496                 }
1497         } else {
1498                 domain = talloc_strdup(mem_ctx, domain_str);
1499                 dc = NULL;
1500         }
1501         if (!domain) {
1502                 return false;
1503         }
1504
1505         *domain_p = domain;
1506
1507         if (!*dc_p && dc) {
1508                 *dc_p = dc;
1509         }
1510
1511         return true;
1512 }
1513
1514 /****************************************************************
1515 ****************************************************************/
1516
1517 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1518                                          struct libnet_JoinCtx *r)
1519 {
1520         if (!r->in.domain_name) {
1521                 libnet_join_set_error_string(mem_ctx, r,
1522                         "No domain name defined");
1523                 return WERR_INVALID_PARAM;
1524         }
1525
1526         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1527                                     &r->in.domain_name,
1528                                     &r->in.dc_name)) {
1529                 libnet_join_set_error_string(mem_ctx, r,
1530                         "Failed to parse domain name");
1531                 return WERR_INVALID_PARAM;
1532         }
1533
1534         if (IS_DC) {
1535                 return WERR_SETUP_DOMAIN_CONTROLLER;
1536         }
1537
1538         if (!secrets_init()) {
1539                 libnet_join_set_error_string(mem_ctx, r,
1540                         "Unable to open secrets database");
1541                 return WERR_CAN_NOT_COMPLETE;
1542         }
1543
1544         return WERR_OK;
1545 }
1546
1547 /****************************************************************
1548 ****************************************************************/
1549
1550 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1551 {
1552         NTSTATUS status;
1553
1554         /* Try adding dom admins to builtin\admins. Only log failures. */
1555         status = create_builtin_administrators(domain_sid);
1556         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1557                 DEBUG(10,("Unable to auto-add domain administrators to "
1558                           "BUILTIN\\Administrators during join because "
1559                           "winbindd must be running."));
1560         } else if (!NT_STATUS_IS_OK(status)) {
1561                 DEBUG(5, ("Failed to auto-add domain administrators to "
1562                           "BUILTIN\\Administrators during join: %s\n",
1563                           nt_errstr(status)));
1564         }
1565
1566         /* Try adding dom users to builtin\users. Only log failures. */
1567         status = create_builtin_users(domain_sid);
1568         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1569                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1570                           "during join because winbindd must be running."));
1571         } else if (!NT_STATUS_IS_OK(status)) {
1572                 DEBUG(5, ("Failed to auto-add domain administrators to "
1573                           "BUILTIN\\Administrators during join: %s\n",
1574                           nt_errstr(status)));
1575         }
1576 }
1577
1578 /****************************************************************
1579 ****************************************************************/
1580
1581 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1582                                           struct libnet_JoinCtx *r)
1583 {
1584         WERROR werr;
1585
1586         if (!W_ERROR_IS_OK(r->out.result)) {
1587                 return r->out.result;
1588         }
1589
1590         werr = do_JoinConfig(r);
1591         if (!W_ERROR_IS_OK(werr)) {
1592                 return werr;
1593         }
1594
1595         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1596                 return WERR_OK;
1597         }
1598
1599         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1600         if (r->out.dns_domain_name) {
1601                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1602         }
1603
1604 #ifdef WITH_ADS
1605         if (r->out.domain_is_ad &&
1606             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1607                 ADS_STATUS ads_status;
1608
1609                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1610                 if (!ADS_ERR_OK(ads_status)) {
1611                         return WERR_GENERAL_FAILURE;
1612                 }
1613         }
1614 #endif /* WITH_ADS */
1615
1616         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1617
1618         return WERR_OK;
1619 }
1620
1621 /****************************************************************
1622 ****************************************************************/
1623
1624 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1625 {
1626         const char *krb5_cc_env = NULL;
1627
1628         if (r->in.ads) {
1629                 ads_destroy(&r->in.ads);
1630         }
1631
1632         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1633         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1634                 unsetenv(KRB5_ENV_CCNAME);
1635         }
1636
1637         return 0;
1638 }
1639
1640 /****************************************************************
1641 ****************************************************************/
1642
1643 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1644 {
1645         const char *krb5_cc_env = NULL;
1646
1647         if (r->in.ads) {
1648                 ads_destroy(&r->in.ads);
1649         }
1650
1651         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1652         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1653                 unsetenv(KRB5_ENV_CCNAME);
1654         }
1655
1656         return 0;
1657 }
1658
1659 /****************************************************************
1660 ****************************************************************/
1661
1662 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1663                            struct libnet_JoinCtx **r)
1664 {
1665         struct libnet_JoinCtx *ctx;
1666         const char *krb5_cc_env = NULL;
1667
1668         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1669         if (!ctx) {
1670                 return WERR_NOMEM;
1671         }
1672
1673         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1674
1675         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1676         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1677
1678         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1679         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1680                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1681                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1682                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1683         }
1684
1685         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1686
1687         *r = ctx;
1688
1689         return WERR_OK;
1690 }
1691
1692 /****************************************************************
1693 ****************************************************************/
1694
1695 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1696                              struct libnet_UnjoinCtx **r)
1697 {
1698         struct libnet_UnjoinCtx *ctx;
1699         const char *krb5_cc_env = NULL;
1700
1701         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1702         if (!ctx) {
1703                 return WERR_NOMEM;
1704         }
1705
1706         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1707
1708         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1709         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1710
1711         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1712         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1713                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1714                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1715                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1716         }
1717
1718         *r = ctx;
1719
1720         return WERR_OK;
1721 }
1722
1723 /****************************************************************
1724 ****************************************************************/
1725
1726 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1727                                        struct libnet_JoinCtx *r)
1728 {
1729         bool valid_security = false;
1730         bool valid_workgroup = false;
1731         bool valid_realm = false;
1732
1733         /* check if configuration is already set correctly */
1734
1735         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1736
1737         switch (r->out.domain_is_ad) {
1738                 case false:
1739                         valid_security = (lp_security() == SEC_DOMAIN);
1740                         if (valid_workgroup && valid_security) {
1741                                 /* nothing to be done */
1742                                 return WERR_OK;
1743                         }
1744                         break;
1745                 case true:
1746                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1747                         switch (lp_security()) {
1748                         case SEC_DOMAIN:
1749                         case SEC_ADS:
1750                                 valid_security = true;
1751                         }
1752
1753                         if (valid_workgroup && valid_realm && valid_security) {
1754                                 /* nothing to be done */
1755                                 return WERR_OK;
1756                         }
1757                         break;
1758         }
1759
1760         /* check if we are supposed to manipulate configuration */
1761
1762         if (!r->in.modify_config) {
1763
1764                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1765
1766                 if (!valid_workgroup) {
1767                         wrong_conf = talloc_asprintf_append(wrong_conf,
1768                                 "\"workgroup\" set to '%s', should be '%s'",
1769                                 lp_workgroup(), r->out.netbios_domain_name);
1770                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1771                 }
1772
1773                 if (!valid_realm) {
1774                         wrong_conf = talloc_asprintf_append(wrong_conf,
1775                                 "\"realm\" set to '%s', should be '%s'",
1776                                 lp_realm(), r->out.dns_domain_name);
1777                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1778                 }
1779
1780                 if (!valid_security) {
1781                         const char *sec = NULL;
1782                         switch (lp_security()) {
1783                         case SEC_SHARE: sec = "share"; break;
1784                         case SEC_USER:  sec = "user"; break;
1785                         case SEC_DOMAIN: sec = "domain"; break;
1786                         case SEC_ADS: sec = "ads"; break;
1787                         }
1788                         wrong_conf = talloc_asprintf_append(wrong_conf,
1789                                 "\"security\" set to '%s', should be %s",
1790                                 sec, r->out.domain_is_ad ?
1791                                 "either 'domain' or 'ads'" : "'domain'");
1792                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1793                 }
1794
1795                 libnet_join_set_error_string(mem_ctx, r,
1796                         "Invalid configuration (%s) and configuration modification "
1797                         "was not requested", wrong_conf);
1798                 return WERR_CAN_NOT_COMPLETE;
1799         }
1800
1801         /* check if we are able to manipulate configuration */
1802
1803         if (!lp_config_backend_is_registry()) {
1804                 libnet_join_set_error_string(mem_ctx, r,
1805                         "Configuration manipulation requested but not "
1806                         "supported by backend");
1807                 return WERR_NOT_SUPPORTED;
1808         }
1809
1810         return WERR_OK;
1811 }
1812
1813 /****************************************************************
1814 ****************************************************************/
1815
1816 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1817                                 struct libnet_JoinCtx *r)
1818 {
1819         NTSTATUS status;
1820         WERROR werr;
1821         struct cli_state *cli = NULL;
1822 #ifdef WITH_ADS
1823         ADS_STATUS ads_status;
1824 #endif /* WITH_ADS */
1825
1826         if (!r->in.dc_name) {
1827                 struct netr_DsRGetDCNameInfo *info;
1828                 const char *dc;
1829                 status = dsgetdcname(mem_ctx,
1830                                      r->in.msg_ctx,
1831                                      r->in.domain_name,
1832                                      NULL,
1833                                      NULL,
1834                                      DS_FORCE_REDISCOVERY |
1835                                      DS_DIRECTORY_SERVICE_REQUIRED |
1836                                      DS_WRITABLE_REQUIRED |
1837                                      DS_RETURN_DNS_NAME,
1838                                      &info);
1839                 if (!NT_STATUS_IS_OK(status)) {
1840                         libnet_join_set_error_string(mem_ctx, r,
1841                                 "failed to find DC for domain %s",
1842                                 r->in.domain_name,
1843                                 get_friendly_nt_error_msg(status));
1844                         return WERR_DCNOTFOUND;
1845                 }
1846
1847                 dc = strip_hostname(info->dc_unc);
1848                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1849                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1850         }
1851
1852         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1853         if (!NT_STATUS_IS_OK(status)) {
1854                 libnet_join_set_error_string(mem_ctx, r,
1855                         "failed to lookup DC info for domain '%s' over rpc: %s",
1856                         r->in.domain_name, get_friendly_nt_error_msg(status));
1857                 return ntstatus_to_werror(status);
1858         }
1859
1860         werr = libnet_join_check_config(mem_ctx, r);
1861         if (!W_ERROR_IS_OK(werr)) {
1862                 goto done;
1863         }
1864
1865 #ifdef WITH_ADS
1866         if (r->out.domain_is_ad && r->in.account_ou &&
1867             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1868
1869                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1870                 if (!ADS_ERR_OK(ads_status)) {
1871                         return WERR_DEFAULT_JOIN_REQUIRED;
1872                 }
1873
1874                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1875                 if (!ADS_ERR_OK(ads_status)) {
1876                         libnet_join_set_error_string(mem_ctx, r,
1877                                 "failed to precreate account in ou %s: %s",
1878                                 r->in.account_ou,
1879                                 ads_errstr(ads_status));
1880                         return WERR_DEFAULT_JOIN_REQUIRED;
1881                 }
1882
1883                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1884         }
1885 #endif /* WITH_ADS */
1886
1887         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
1888             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
1889                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
1890         } else {
1891                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
1892         }
1893         if (!NT_STATUS_IS_OK(status)) {
1894                 libnet_join_set_error_string(mem_ctx, r,
1895                         "failed to join domain '%s' over rpc: %s",
1896                         r->in.domain_name, get_friendly_nt_error_msg(status));
1897                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1898                         return WERR_SETUP_ALREADY_JOINED;
1899                 }
1900                 werr = ntstatus_to_werror(status);
1901                 goto done;
1902         }
1903
1904         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1905                 werr = WERR_SETUP_NOT_JOINED;
1906                 goto done;
1907         }
1908
1909         werr = WERR_OK;
1910
1911  done:
1912         if (cli) {
1913                 cli_shutdown(cli);
1914         }
1915
1916         return werr;
1917 }
1918
1919 /****************************************************************
1920 ****************************************************************/
1921
1922 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
1923                                    struct libnet_JoinCtx *r)
1924 {
1925         WERROR werr;
1926         struct libnet_UnjoinCtx *u = NULL;
1927
1928         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
1929         if (!W_ERROR_IS_OK(werr)) {
1930                 return werr;
1931         }
1932
1933         u->in.debug             = r->in.debug;
1934         u->in.dc_name           = r->in.dc_name;
1935         u->in.domain_name       = r->in.domain_name;
1936         u->in.admin_account     = r->in.admin_account;
1937         u->in.admin_password    = r->in.admin_password;
1938         u->in.modify_config     = r->in.modify_config;
1939         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
1940                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
1941
1942         werr = libnet_Unjoin(mem_ctx, u);
1943         TALLOC_FREE(u);
1944
1945         return werr;
1946 }
1947
1948 /****************************************************************
1949 ****************************************************************/
1950
1951 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1952                    struct libnet_JoinCtx *r)
1953 {
1954         WERROR werr;
1955
1956         if (r->in.debug) {
1957                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1958         }
1959
1960         werr = libnet_join_pre_processing(mem_ctx, r);
1961         if (!W_ERROR_IS_OK(werr)) {
1962                 goto done;
1963         }
1964
1965         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1966                 werr = libnet_DomainJoin(mem_ctx, r);
1967                 if (!W_ERROR_IS_OK(werr)) {
1968                         goto done;
1969                 }
1970         }
1971
1972         werr = libnet_join_post_processing(mem_ctx, r);
1973         if (!W_ERROR_IS_OK(werr)) {
1974                 goto done;
1975         }
1976
1977         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1978                 werr = libnet_join_post_verify(mem_ctx, r);
1979                 if (!W_ERROR_IS_OK(werr)) {
1980                         libnet_join_rollback(mem_ctx, r);
1981                 }
1982         }
1983
1984  done:
1985         r->out.result = werr;
1986
1987         if (r->in.debug) {
1988                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1989         }
1990         return werr;
1991 }
1992
1993 /****************************************************************
1994 ****************************************************************/
1995
1996 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1997                                   struct libnet_UnjoinCtx *r)
1998 {
1999         NTSTATUS status;
2000
2001         if (!r->in.domain_sid) {
2002                 struct dom_sid sid;
2003                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2004                         libnet_unjoin_set_error_string(mem_ctx, r,
2005                                 "Unable to fetch domain sid: are we joined?");
2006                         return WERR_SETUP_NOT_JOINED;
2007                 }
2008                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
2009                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2010         }
2011
2012         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2013             !r->in.delete_machine_account) {
2014                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2015                 return WERR_OK;
2016         }
2017
2018         if (!r->in.dc_name) {
2019                 struct netr_DsRGetDCNameInfo *info;
2020                 const char *dc;
2021                 status = dsgetdcname(mem_ctx,
2022                                      r->in.msg_ctx,
2023                                      r->in.domain_name,
2024                                      NULL,
2025                                      NULL,
2026                                      DS_DIRECTORY_SERVICE_REQUIRED |
2027                                      DS_WRITABLE_REQUIRED |
2028                                      DS_RETURN_DNS_NAME,
2029                                      &info);
2030                 if (!NT_STATUS_IS_OK(status)) {
2031                         libnet_unjoin_set_error_string(mem_ctx, r,
2032                                 "failed to find DC for domain %s",
2033                                 r->in.domain_name,
2034                                 get_friendly_nt_error_msg(status));
2035                         return WERR_DCNOTFOUND;
2036                 }
2037
2038                 dc = strip_hostname(info->dc_unc);
2039                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2040                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2041         }
2042
2043 #ifdef WITH_ADS
2044         /* for net ads leave, try to delete the account.  If it works,
2045            no sense in disabling.  If it fails, we can still try to
2046            disable it. jmcd */
2047
2048         if (r->in.delete_machine_account) {
2049                 ADS_STATUS ads_status;
2050                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2051                 if (ADS_ERR_OK(ads_status)) {
2052                         /* dirty hack */
2053                         r->out.dns_domain_name =
2054                                 talloc_strdup(mem_ctx,
2055                                               r->in.ads->server.realm);
2056                         ads_status =
2057                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2058                 }
2059                 if (!ADS_ERR_OK(ads_status)) {
2060                         libnet_unjoin_set_error_string(mem_ctx, r,
2061                                 "failed to remove machine account from AD: %s",
2062                                 ads_errstr(ads_status));
2063                 } else {
2064                         r->out.deleted_machine_account = true;
2065                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2066                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2067                         return WERR_OK;
2068                 }
2069         }
2070 #endif /* WITH_ADS */
2071
2072         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2073            "disable".  */
2074         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2075                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2076                 if (!NT_STATUS_IS_OK(status)) {
2077                         libnet_unjoin_set_error_string(mem_ctx, r,
2078                                 "failed to disable machine account via rpc: %s",
2079                                 get_friendly_nt_error_msg(status));
2080                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2081                                 return WERR_SETUP_NOT_JOINED;
2082                         }
2083                         return ntstatus_to_werror(status);
2084                 }
2085
2086                 r->out.disabled_machine_account = true;
2087         }
2088
2089         /* If disable succeeded or was not requested at all, we
2090            should be getting rid of our end of things */
2091
2092         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2093
2094         return WERR_OK;
2095 }
2096
2097 /****************************************************************
2098 ****************************************************************/
2099
2100 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2101                                            struct libnet_UnjoinCtx *r)
2102 {
2103         if (!r->in.domain_name) {
2104                 libnet_unjoin_set_error_string(mem_ctx, r,
2105                         "No domain name defined");
2106                 return WERR_INVALID_PARAM;
2107         }
2108
2109         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2110                                     &r->in.domain_name,
2111                                     &r->in.dc_name)) {
2112                 libnet_unjoin_set_error_string(mem_ctx, r,
2113                         "Failed to parse domain name");
2114                 return WERR_INVALID_PARAM;
2115         }
2116
2117         if (IS_DC) {
2118                 return WERR_SETUP_DOMAIN_CONTROLLER;
2119         }
2120
2121         if (!secrets_init()) {
2122                 libnet_unjoin_set_error_string(mem_ctx, r,
2123                         "Unable to open secrets database");
2124                 return WERR_CAN_NOT_COMPLETE;
2125         }
2126
2127         return WERR_OK;
2128 }
2129
2130 /****************************************************************
2131 ****************************************************************/
2132
2133 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2134                                             struct libnet_UnjoinCtx *r)
2135 {
2136         saf_delete(r->out.netbios_domain_name);
2137         saf_delete(r->out.dns_domain_name);
2138
2139         return libnet_unjoin_config(r);
2140 }
2141
2142 /****************************************************************
2143 ****************************************************************/
2144
2145 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2146                      struct libnet_UnjoinCtx *r)
2147 {
2148         WERROR werr;
2149
2150         if (r->in.debug) {
2151                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2152         }
2153
2154         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2155         if (!W_ERROR_IS_OK(werr)) {
2156                 goto done;
2157         }
2158
2159         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2160                 werr = libnet_DomainUnjoin(mem_ctx, r);
2161                 if (!W_ERROR_IS_OK(werr)) {
2162                         libnet_unjoin_config(r);
2163                         goto done;
2164                 }
2165         }
2166
2167         werr = libnet_unjoin_post_processing(mem_ctx, r);
2168         if (!W_ERROR_IS_OK(werr)) {
2169                 goto done;
2170         }
2171
2172  done:
2173         r->out.result = werr;
2174
2175         if (r->in.debug) {
2176                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2177         }
2178
2179         return werr;
2180 }