source3/libnet/libnet_join.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  libnet Join Support
   4  *  Copyright (C) Gerald (Jerry) Carter 2006
   5  *  Copyright (C) Guenther Deschner 2007-2008
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22 #include "ads.h"
  23 #include "librpc/gen_ndr/ndr_libnet_join.h"
  24 #include "libnet/libnet_join.h"
  25 #include "libcli/auth/libcli_auth.h"
  26 #include "../librpc/gen_ndr/ndr_samr_c.h"
  27 #include "rpc_client/init_samr.h"
  28 #include "../librpc/gen_ndr/ndr_lsa_c.h"
  29 #include "rpc_client/cli_lsarpc.h"
  30 #include "../librpc/gen_ndr/ndr_netlogon.h"
  31 #include "rpc_client/cli_netlogon.h"
  32 #include "lib/smbconf/smbconf.h"
  33 #include "lib/smbconf/smbconf_reg.h"
  34 #include "../libds/common/flags.h"
  35 #include "secrets.h"
  36 #include "rpc_client/init_lsa.h"
  37 #include "rpc_client/cli_pipe.h"
  38 #include "krb5_env.h"
  39 #include "../libcli/security/security.h"
  40 #include "passdb.h"
  41
  42 /****************************************************************
  43 ****************************************************************/
  44
  45 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  46         do { \
  47                 char *str = NULL; \
  48                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  49                 DEBUG(1,("libnet_Join:\n%s", str)); \
  50                 TALLOC_FREE(str); \
  51         } while (0)
  52
  53 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  54         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  55 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  56         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  57
  58 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  59         do { \
  60                 char *str = NULL; \
  61                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  62                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  63                 TALLOC_FREE(str); \
  64         } while (0)
  65
  66 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  67         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  68 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  69         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  70
  71 /****************************************************************
  72 ****************************************************************/
  73
  74 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  75                                          struct libnet_JoinCtx *r,
  76                                          const char *format, ...)
  77 {
  78         va_list args;
  79
  80         if (r->out.error_string) {
  81                 return;
  82         }
  83
  84         va_start(args, format);
  85         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  86         va_end(args);
  87 }
  88
  89 /****************************************************************
  90 ****************************************************************/
  91
  92 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  93                                            struct libnet_UnjoinCtx *r,
  94                                            const char *format, ...)
  95 {
  96         va_list args;
  97
  98         if (r->out.error_string) {
  99                 return;
 100         }
 101
 102         va_start(args, format);
 103         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
 104         va_end(args);
 105 }
 106
 107 #ifdef HAVE_ADS
 108
 109 /****************************************************************
 110 ****************************************************************/
 111
 112 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 113                                      const char *netbios_domain_name,
 114                                      const char *dc_name,
 115                                      const char *user_name,
 116                                      const char *password,
 117                                      ADS_STRUCT **ads)
 118 {
 119         ADS_STATUS status;
 120         ADS_STRUCT *my_ads = NULL;
 121         char *cp;
 122
 123         my_ads = ads_init(dns_domain_name,
 124                           netbios_domain_name,
 125                           dc_name);
 126         if (!my_ads) {
 127                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 128         }
 129
 130         if (user_name) {
 131                 SAFE_FREE(my_ads->auth.user_name);
 132                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 133                 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
 134                         *cp++ = '\0';
 135                         SAFE_FREE(my_ads->auth.realm);
 136                         my_ads->auth.realm = smb_xstrdup(cp);
 137                         strupper_m(my_ads->auth.realm);
 138                 }
 139         }
 140
 141         if (password) {
 142                 SAFE_FREE(my_ads->auth.password);
 143                 my_ads->auth.password = SMB_STRDUP(password);
 144         }
 145
 146         status = ads_connect_user_creds(my_ads);
 147         if (!ADS_ERR_OK(status)) {
 148                 ads_destroy(&my_ads);
 149                 return status;
 150         }
 151
 152         *ads = my_ads;
 153         return ADS_SUCCESS;
 154 }
 155
 156 /****************************************************************
 157 ****************************************************************/
 158
 159 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 160                                           struct libnet_JoinCtx *r)
 161 {
 162         ADS_STATUS status;
 163
 164         status = libnet_connect_ads(r->out.dns_domain_name,
 165                                     r->out.netbios_domain_name,
 166                                     r->in.dc_name,
 167                                     r->in.admin_account,
 168                                     r->in.admin_password,
 169                                     &r->in.ads);
 170         if (!ADS_ERR_OK(status)) {
 171                 libnet_join_set_error_string(mem_ctx, r,
 172                         "failed to connect to AD: %s",
 173                         ads_errstr(status));
 174                 return status;
 175         }
 176
 177         if (!r->out.netbios_domain_name) {
 178                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 179                                                            r->in.ads->server.workgroup);
 180                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 181         }
 182
 183         if (!r->out.dns_domain_name) {
 184                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 185                                                        r->in.ads->config.realm);
 186                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 187         }
 188
 189         r->out.domain_is_ad = true;
 190
 191         return ADS_SUCCESS;
 192 }
 193
 194 /****************************************************************
 195 ****************************************************************/
 196
 197 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 198                                             struct libnet_UnjoinCtx *r)
 199 {
 200         ADS_STATUS status;
 201
 202         status = libnet_connect_ads(r->in.domain_name,
 203                                     r->in.domain_name,
 204                                     r->in.dc_name,
 205                                     r->in.admin_account,
 206                                     r->in.admin_password,
 207                                     &r->in.ads);
 208         if (!ADS_ERR_OK(status)) {
 209                 libnet_unjoin_set_error_string(mem_ctx, r,
 210                         "failed to connect to AD: %s",
 211                         ads_errstr(status));
 212         }
 213
 214         return status;
 215 }
 216
 217 /****************************************************************
 218  join a domain using ADS (LDAP mods)
 219 ****************************************************************/
 220
 221 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 222                                                      struct libnet_JoinCtx *r)
 223 {
 224         ADS_STATUS status;
 225         LDAPMessage *res = NULL;
 226         const char *attrs[] = { "dn", NULL };
 227         bool moved = false;
 228
 229         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 230         if (!ADS_ERR_OK(status)) {
 231                 return status;
 232         }
 233
 234         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 235         if (!ADS_ERR_OK(status)) {
 236                 return status;
 237         }
 238
 239         if (ads_count_replies(r->in.ads, res) != 1) {
 240                 ads_msgfree(r->in.ads, res);
 241                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 242         }
 243
 244         ads_msgfree(r->in.ads, res);
 245
 246         /* Attempt to create the machine account and bail if this fails.
 247            Assume that the admin wants exactly what they requested */
 248
 249         status = ads_create_machine_acct(r->in.ads,
 250                                          r->in.machine_name,
 251                                          r->in.account_ou);
 252
 253         if (ADS_ERR_OK(status)) {
 254                 DEBUG(1,("machine account creation created\n"));
 255                 return status;
 256         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 257                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 258                 status = ADS_SUCCESS;
 259         }
 260
 261         if (!ADS_ERR_OK(status)) {
 262                 DEBUG(1,("machine account creation failed\n"));
 263                 return status;
 264         }
 265
 266         status = ads_move_machine_acct(r->in.ads,
 267                                        r->in.machine_name,
 268                                        r->in.account_ou,
 269                                        &moved);
 270         if (!ADS_ERR_OK(status)) {
 271                 DEBUG(1,("failure to locate/move pre-existing "
 272                         "machine account\n"));
 273                 return status;
 274         }
 275
 276         DEBUG(1,("The machine account %s the specified OU.\n",
 277                 moved ? "was moved into" : "already exists in"));
 278
 279         return status;
 280 }
 281
 282 /****************************************************************
 283 ****************************************************************/
 284
 285 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 286                                                     struct libnet_UnjoinCtx *r)
 287 {
 288         ADS_STATUS status;
 289
 290         if (!r->in.ads) {
 291                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 292                 if (!ADS_ERR_OK(status)) {
 293                         libnet_unjoin_set_error_string(mem_ctx, r,
 294                                 "failed to connect to AD: %s",
 295                                 ads_errstr(status));
 296                         return status;
 297                 }
 298         }
 299
 300         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 301         if (!ADS_ERR_OK(status)) {
 302                 libnet_unjoin_set_error_string(mem_ctx, r,
 303                         "failed to leave realm: %s",
 304                         ads_errstr(status));
 305                 return status;
 306         }
 307
 308         return ADS_SUCCESS;
 309 }
 310
 311 /****************************************************************
 312 ****************************************************************/
 313
 314 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 315                                                 struct libnet_JoinCtx *r)
 316 {
 317         ADS_STATUS status;
 318         LDAPMessage *res = NULL;
 319         char *dn = NULL;
 320
 321         if (!r->in.machine_name) {
 322                 return ADS_ERROR(LDAP_NO_MEMORY);
 323         }
 324
 325         status = ads_find_machine_acct(r->in.ads,
 326                                        &res,
 327                                        r->in.machine_name);
 328         if (!ADS_ERR_OK(status)) {
 329                 return status;
 330         }
 331
 332         if (ads_count_replies(r->in.ads, res) != 1) {
 333                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 334                 goto done;
 335         }
 336
 337         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 338         if (!dn) {
 339                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 340                 goto done;
 341         }
 342
 343         r->out.dn = talloc_strdup(mem_ctx, dn);
 344         if (!r->out.dn) {
 345                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 346                 goto done;
 347         }
 348
 349  done:
 350         ads_msgfree(r->in.ads, res);
 351         TALLOC_FREE(dn);
 352
 353         return status;
 354 }
 355
 356 /****************************************************************
 357  Set a machines dNSHostName and servicePrincipalName attributes
 358 ****************************************************************/
 359
 360 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 361                                               struct libnet_JoinCtx *r)
 362 {
 363         ADS_STATUS status;
 364         ADS_MODLIST mods;
 365         fstring my_fqdn;
 366         const char *spn_array[3] = {NULL, NULL, NULL};
 367         char *spn = NULL;
 368
 369         /* Find our DN */
 370
 371         status = libnet_join_find_machine_acct(mem_ctx, r);
 372         if (!ADS_ERR_OK(status)) {
 373                 return status;
 374         }
 375
 376         /* Windows only creates HOST/shortname & HOST/fqdn. */
 377
 378         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 379         if (!spn) {
 380                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 381         }
 382         strupper_m(spn);
 383         spn_array[0] = spn;
 384
 385         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 386             || (strchr(my_fqdn, '.') == NULL)) {
 387                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 388                              r->out.dns_domain_name);
 389         }
 390
 391         strlower_m(my_fqdn);
 392
 393         if (!strequal(my_fqdn, r->in.machine_name)) {
 394                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 395                 if (!spn) {
 396                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 397                 }
 398                 spn_array[1] = spn;
 399         }
 400
 401         mods = ads_init_mods(mem_ctx);
 402         if (!mods) {
 403                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 404         }
 405
 406         /* fields of primary importance */
 407
 408         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 409         if (!ADS_ERR_OK(status)) {
 410                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 411         }
 412
 413         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 414                                  spn_array);
 415         if (!ADS_ERR_OK(status)) {
 416                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 417         }
 418
 419         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 420 }
 421
 422 /****************************************************************
 423 ****************************************************************/
 424
 425 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 426                                               struct libnet_JoinCtx *r)
 427 {
 428         ADS_STATUS status;
 429         ADS_MODLIST mods;
 430
 431         if (!r->in.create_upn) {
 432                 return ADS_SUCCESS;
 433         }
 434
 435         /* Find our DN */
 436
 437         status = libnet_join_find_machine_acct(mem_ctx, r);
 438         if (!ADS_ERR_OK(status)) {
 439                 return status;
 440         }
 441
 442         if (!r->in.upn) {
 443                 r->in.upn = talloc_asprintf(mem_ctx,
 444                                             "host/%s@%s",
 445                                             r->in.machine_name,
 446                                             r->out.dns_domain_name);
 447                 if (!r->in.upn) {
 448                         return ADS_ERROR(LDAP_NO_MEMORY);
 449                 }
 450         }
 451
 452         /* now do the mods */
 453
 454         mods = ads_init_mods(mem_ctx);
 455         if (!mods) {
 456                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 457         }
 458
 459         /* fields of primary importance */
 460
 461         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 462         if (!ADS_ERR_OK(status)) {
 463                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 464         }
 465
 466         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 467 }
 468
 469
 470 /****************************************************************
 471 ****************************************************************/
 472
 473 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 474                                                 struct libnet_JoinCtx *r)
 475 {
 476         ADS_STATUS status;
 477         ADS_MODLIST mods;
 478         char *os_sp = NULL;
 479
 480         if (!r->in.os_name || !r->in.os_version ) {
 481                 return ADS_SUCCESS;
 482         }
 483
 484         /* Find our DN */
 485
 486         status = libnet_join_find_machine_acct(mem_ctx, r);
 487         if (!ADS_ERR_OK(status)) {
 488                 return status;
 489         }
 490
 491         /* now do the mods */
 492
 493         mods = ads_init_mods(mem_ctx);
 494         if (!mods) {
 495                 return ADS_ERROR(LDAP_NO_MEMORY);
 496         }
 497
 498         os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
 499         if (!os_sp) {
 500                 return ADS_ERROR(LDAP_NO_MEMORY);
 501         }
 502
 503         /* fields of primary importance */
 504
 505         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 506                              r->in.os_name);
 507         if (!ADS_ERR_OK(status)) {
 508                 return status;
 509         }
 510
 511         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 512                              r->in.os_version);
 513         if (!ADS_ERR_OK(status)) {
 514                 return status;
 515         }
 516
 517         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 518                              os_sp);
 519         if (!ADS_ERR_OK(status)) {
 520                 return status;
 521         }
 522
 523         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 524 }
 525
 526 /****************************************************************
 527 ****************************************************************/
 528
 529 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 530                                       struct libnet_JoinCtx *r)
 531 {
 532         if (!USE_SYSTEM_KEYTAB) {
 533                 return true;
 534         }
 535
 536         if (ads_keytab_create_default(r->in.ads) != 0) {
 537                 return false;
 538         }
 539
 540         return true;
 541 }
 542
 543 /****************************************************************
 544 ****************************************************************/
 545
 546 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 547                                                  struct libnet_JoinCtx *r)
 548 {
 549         uint32_t domain_func;
 550         ADS_STATUS status;
 551         const char *salt = NULL;
 552         char *std_salt = NULL;
 553
 554         status = ads_domain_func_level(r->in.ads, &domain_func);
 555         if (!ADS_ERR_OK(status)) {
 556                 libnet_join_set_error_string(mem_ctx, r,
 557                         "failed to determine domain functional level: %s",
 558                         ads_errstr(status));
 559                 return false;
 560         }
 561
 562         /* go ahead and setup the default salt */
 563
 564         std_salt = kerberos_standard_des_salt();
 565         if (!std_salt) {
 566                 libnet_join_set_error_string(mem_ctx, r,
 567                         "failed to obtain standard DES salt");
 568                 return false;
 569         }
 570
 571         salt = talloc_strdup(mem_ctx, std_salt);
 572         if (!salt) {
 573                 return false;
 574         }
 575
 576         SAFE_FREE(std_salt);
 577
 578         /* if it's a Windows functional domain, we have to look for the UPN */
 579
 580         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 581                 char *upn;
 582
 583                 upn = ads_get_upn(r->in.ads, mem_ctx,
 584                                   r->in.machine_name);
 585                 if (upn) {
 586                         salt = talloc_strdup(mem_ctx, upn);
 587                         if (!salt) {
 588                                 return false;
 589                         }
 590                 }
 591         }
 592
 593         return kerberos_secrets_store_des_salt(salt);
 594 }
 595
 596 /****************************************************************
 597 ****************************************************************/
 598
 599 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 600                                                   struct libnet_JoinCtx *r)
 601 {
 602         ADS_STATUS status;
 603
 604         if (!r->in.ads) {
 605                 status = libnet_join_connect_ads(mem_ctx, r);
 606                 if (!ADS_ERR_OK(status)) {
 607                         return status;
 608                 }
 609         }
 610
 611         status = libnet_join_set_machine_spn(mem_ctx, r);
 612         if (!ADS_ERR_OK(status)) {
 613                 libnet_join_set_error_string(mem_ctx, r,
 614                         "failed to set machine spn: %s",
 615                         ads_errstr(status));
 616                 return status;
 617         }
 618
 619         status = libnet_join_set_os_attributes(mem_ctx, r);
 620         if (!ADS_ERR_OK(status)) {
 621                 libnet_join_set_error_string(mem_ctx, r,
 622                         "failed to set machine os attributes: %s",
 623                         ads_errstr(status));
 624                 return status;
 625         }
 626
 627         status = libnet_join_set_machine_upn(mem_ctx, r);
 628         if (!ADS_ERR_OK(status)) {
 629                 libnet_join_set_error_string(mem_ctx, r,
 630                         "failed to set machine upn: %s",
 631                         ads_errstr(status));
 632                 return status;
 633         }
 634
 635         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 636                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 637         }
 638
 639         if (!libnet_join_create_keytab(mem_ctx, r)) {
 640                 libnet_join_set_error_string(mem_ctx, r,
 641                         "failed to create kerberos keytab");
 642                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 643         }
 644
 645         return ADS_SUCCESS;
 646 }
 647 #endif /* HAVE_ADS */
 648
 649 /****************************************************************
 650  Store the machine password and domain SID
 651 ****************************************************************/
 652
 653 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 654                                                  struct libnet_JoinCtx *r)
 655 {
 656         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 657                                       r->out.domain_sid))
 658         {
 659                 DEBUG(1,("Failed to save domain sid\n"));
 660                 return false;
 661         }
 662
 663         if (!secrets_store_machine_password(r->in.machine_password,
 664                                             r->out.netbios_domain_name,
 665                                             r->in.secure_channel_type))
 666         {
 667                 DEBUG(1,("Failed to save machine password\n"));
 668                 return false;
 669         }
 670
 671         return true;
 672 }
 673
 674 /****************************************************************
 675  Connect dc's IPC$ share
 676 ****************************************************************/
 677
 678 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 679                                            const char *user,
 680                                            const char *pass,
 681                                            bool use_kerberos,
 682                                            struct cli_state **cli)
 683 {
 684         int flags = 0;
 685
 686         if (use_kerberos) {
 687                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 688         }
 689
 690         if (use_kerberos && pass) {
 691                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 692         }
 693
 694         return cli_full_connection(cli, NULL,
 695                                    dc,
 696                                    NULL, 0,
 697                                    "IPC$", "IPC",
 698                                    user,
 699                                    NULL,
 700                                    pass,
 701                                    flags,
 702                                    Undefined);
 703 }
 704
 705 /****************************************************************
 706  Lookup domain dc's info
 707 ****************************************************************/
 708
 709 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 710                                           struct libnet_JoinCtx *r,
 711                                           struct cli_state **cli)
 712 {
 713         struct rpc_pipe_client *pipe_hnd = NULL;
 714         struct policy_handle lsa_pol;
 715         NTSTATUS status, result;
 716         union lsa_PolicyInformation *info = NULL;
 717         struct dcerpc_binding_handle *b;
 718
 719         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 720                                             r->in.admin_account,
 721                                             r->in.admin_password,
 722                                             r->in.use_kerberos,
 723                                             cli);
 724         if (!NT_STATUS_IS_OK(status)) {
 725                 goto done;
 726         }
 727
 728         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 729                                           &pipe_hnd);
 730         if (!NT_STATUS_IS_OK(status)) {
 731                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 732                         nt_errstr(status)));
 733                 goto done;
 734         }
 735
 736         b = pipe_hnd->binding_handle;
 737
 738         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 739                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 740         if (!NT_STATUS_IS_OK(status)) {
 741                 goto done;
 742         }
 743
 744         status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
 745                                              &lsa_pol,
 746                                              LSA_POLICY_INFO_DNS,
 747                                              &info,
 748                                              &result);
 749         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
 750                 r->out.domain_is_ad = true;
 751                 r->out.netbios_domain_name = info->dns.name.string;
 752                 r->out.dns_domain_name = info->dns.dns_domain.string;
 753                 r->out.forest_name = info->dns.dns_forest.string;
 754                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
 755                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 756         }
 757
 758         if (!NT_STATUS_IS_OK(status)) {
 759                 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
 760                                                     &lsa_pol,
 761                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 762                                                     &info,
 763                                                     &result);
 764                 if (!NT_STATUS_IS_OK(status)) {
 765                         goto done;
 766                 }
 767                 if (!NT_STATUS_IS_OK(result)) {
 768                         status = result;
 769                         goto done;
 770                 }
 771
 772                 r->out.netbios_domain_name = info->account_domain.name.string;
 773                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
 774                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 775         }
 776
 777         dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
 778         TALLOC_FREE(pipe_hnd);
 779
 780  done:
 781         return status;
 782 }
 783
 784 /****************************************************************
 785  Do the domain join unsecure
 786 ****************************************************************/
 787
 788 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 789                                                     struct libnet_JoinCtx *r,
 790                                                     struct cli_state *cli)
 791 {
 792         struct rpc_pipe_client *pipe_hnd = NULL;
 793         unsigned char orig_trust_passwd_hash[16];
 794         unsigned char new_trust_passwd_hash[16];
 795         fstring trust_passwd;
 796         NTSTATUS status;
 797
 798         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
 799                                           &pipe_hnd);
 800         if (!NT_STATUS_IS_OK(status)) {
 801                 return status;
 802         }
 803
 804         if (!r->in.machine_password) {
 805                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 806                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 807         }
 808
 809         E_md4hash(r->in.machine_password, new_trust_passwd_hash);
 810
 811         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 812         fstrcpy(trust_passwd, r->in.admin_password);
 813         strlower_m(trust_passwd);
 814
 815         /*
 816          * Machine names can be 15 characters, but the max length on
 817          * a password is 14.  --jerry
 818          */
 819
 820         trust_passwd[14] = '\0';
 821
 822         E_md4hash(trust_passwd, orig_trust_passwd_hash);
 823
 824         status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
 825                                                     r->in.machine_name,
 826                                                     orig_trust_passwd_hash,
 827                                                     r->in.machine_password,
 828                                                     new_trust_passwd_hash,
 829                                                     r->in.secure_channel_type);
 830
 831         return status;
 832 }
 833
 834 /****************************************************************
 835  Do the domain join
 836 ****************************************************************/
 837
 838 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 839                                            struct libnet_JoinCtx *r,
 840                                            struct cli_state *cli)
 841 {
 842         struct rpc_pipe_client *pipe_hnd = NULL;
 843         struct policy_handle sam_pol, domain_pol, user_pol;
 844         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
 845         char *acct_name;
 846         struct lsa_String lsa_acct_name;
 847         uint32_t user_rid;
 848         uint32_t acct_flags = ACB_WSTRUST;
 849         struct samr_Ids user_rids;
 850         struct samr_Ids name_types;
 851         union samr_UserInfo user_info;
 852         struct dcerpc_binding_handle *b = NULL;
 853
 854         struct samr_CryptPassword crypt_pwd;
 855         struct samr_CryptPasswordEx crypt_pwd_ex;
 856
 857         ZERO_STRUCT(sam_pol);
 858         ZERO_STRUCT(domain_pol);
 859         ZERO_STRUCT(user_pol);
 860
 861         switch (r->in.secure_channel_type) {
 862         case SEC_CHAN_WKSTA:
 863                 acct_flags = ACB_WSTRUST;
 864                 break;
 865         case SEC_CHAN_BDC:
 866                 acct_flags = ACB_SVRTRUST;
 867                 break;
 868         default:
 869                 return NT_STATUS_INVALID_PARAMETER;
 870         }
 871
 872         if (!r->in.machine_password) {
 873                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 874                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 875         }
 876
 877         /* Open the domain */
 878
 879         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 880                                           &pipe_hnd);
 881         if (!NT_STATUS_IS_OK(status)) {
 882                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 883                         nt_errstr(status)));
 884                 goto done;
 885         }
 886
 887         b = pipe_hnd->binding_handle;
 888
 889         status = dcerpc_samr_Connect2(b, mem_ctx,
 890                                       pipe_hnd->desthost,
 891                                       SAMR_ACCESS_ENUM_DOMAINS
 892                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
 893                                       &sam_pol,
 894                                       &result);
 895         if (!NT_STATUS_IS_OK(status)) {
 896                 goto done;
 897         }
 898         if (!NT_STATUS_IS_OK(result)) {
 899                 status = result;
 900                 goto done;
 901         }
 902
 903         status = dcerpc_samr_OpenDomain(b, mem_ctx,
 904                                         &sam_pol,
 905                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
 906                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
 907                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 908                                         r->out.domain_sid,
 909                                         &domain_pol,
 910                                         &result);
 911         if (!NT_STATUS_IS_OK(status)) {
 912                 goto done;
 913         }
 914         if (!NT_STATUS_IS_OK(result)) {
 915                 status = result;
 916                 goto done;
 917         }
 918
 919         /* Create domain user */
 920
 921         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 922         strlower_m(acct_name);
 923
 924         init_lsa_String(&lsa_acct_name, acct_name);
 925
 926         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 927                 uint32_t access_desired =
 928                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 929                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 930                         SAMR_USER_ACCESS_SET_PASSWORD |
 931                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 932                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 933                 uint32_t access_granted = 0;
 934
 935                 DEBUG(10,("Creating account with desired access mask: %d\n",
 936                         access_desired));
 937
 938                 status = dcerpc_samr_CreateUser2(b, mem_ctx,
 939                                                  &domain_pol,
 940                                                  &lsa_acct_name,
 941                                                  acct_flags,
 942                                                  access_desired,
 943                                                  &user_pol,
 944                                                  &access_granted,
 945                                                  &user_rid,
 946                                                  &result);
 947                 if (!NT_STATUS_IS_OK(status)) {
 948                         goto done;
 949                 }
 950
 951                 status = result;
 952                 if (!NT_STATUS_IS_OK(status) &&
 953                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 954
 955                         DEBUG(10,("Creation of workstation account failed: %s\n",
 956                                 nt_errstr(status)));
 957
 958                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 959                            username/password combo but the user does not have
 960                            administrator access. */
 961
 962                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 963                                 libnet_join_set_error_string(mem_ctx, r,
 964                                         "User specified does not have "
 965                                         "administrator privileges");
 966                         }
 967
 968                         goto done;
 969                 }
 970
 971                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 972                         if (!(r->in.join_flags &
 973                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 974                                 goto done;
 975                         }
 976                 }
 977
 978                 /* We *must* do this.... don't ask... */
 979
 980                 if (NT_STATUS_IS_OK(status)) {
 981                         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
 982                 }
 983         }
 984
 985         status = dcerpc_samr_LookupNames(b, mem_ctx,
 986                                          &domain_pol,
 987                                          1,
 988                                          &lsa_acct_name,
 989                                          &user_rids,
 990                                          &name_types,
 991                                          &result);
 992         if (!NT_STATUS_IS_OK(status)) {
 993                 goto done;
 994         }
 995         if (!NT_STATUS_IS_OK(result)) {
 996                 status = result;
 997                 goto done;
 998         }
 999
1000         if (name_types.ids[0] != SID_NAME_USER) {
1001                 DEBUG(0,("%s is not a user account (type=%d)\n",
1002                         acct_name, name_types.ids[0]));
1003                 status = NT_STATUS_INVALID_WORKSTATION;
1004                 goto done;
1005         }
1006
1007         user_rid = user_rids.ids[0];
1008
1009         /* Open handle on user */
1010
1011         status = dcerpc_samr_OpenUser(b, mem_ctx,
1012                                       &domain_pol,
1013                                       SEC_FLAG_MAXIMUM_ALLOWED,
1014                                       user_rid,
1015                                       &user_pol,
1016                                       &result);
1017         if (!NT_STATUS_IS_OK(status)) {
1018                 goto done;
1019         }
1020         if (!NT_STATUS_IS_OK(result)) {
1021                 status = result;
1022                 goto done;
1023         }
1024
1025         /* Fill in the additional account flags now */
1026
1027         acct_flags |= ACB_PWNOEXP;
1028
1029         /* Set account flags on machine account */
1030         ZERO_STRUCT(user_info.info16);
1031         user_info.info16.acct_flags = acct_flags;
1032
1033         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1034                                          &user_pol,
1035                                          16,
1036                                          &user_info,
1037                                          &result);
1038         if (!NT_STATUS_IS_OK(status)) {
1039                 dcerpc_samr_DeleteUser(b, mem_ctx,
1040                                        &user_pol,
1041                                        &result);
1042
1043                 libnet_join_set_error_string(mem_ctx, r,
1044                         "Failed to set account flags for machine account (%s)\n",
1045                         nt_errstr(status));
1046                 goto done;
1047         }
1048
1049         if (!NT_STATUS_IS_OK(result)) {
1050                 status = result;
1051
1052                 dcerpc_samr_DeleteUser(b, mem_ctx,
1053                                        &user_pol,
1054                                        &result);
1055
1056                 libnet_join_set_error_string(mem_ctx, r,
1057                         "Failed to set account flags for machine account (%s)\n",
1058                         nt_errstr(status));
1059                 goto done;
1060         }
1061
1062         /* Set password on machine account - first try level 26 */
1063
1064         init_samr_CryptPasswordEx(r->in.machine_password,
1065                                   &cli->user_session_key,
1066                                   &crypt_pwd_ex);
1067
1068         user_info.info26.password = crypt_pwd_ex;
1069         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1070
1071         status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1072                                           &user_pol,
1073                                           26,
1074                                           &user_info,
1075                                           &result);
1076
1077         if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1078
1079                 /* retry with level 24 */
1080
1081                 init_samr_CryptPassword(r->in.machine_password,
1082                                         &cli->user_session_key,
1083                                         &crypt_pwd);
1084
1085                 user_info.info24.password = crypt_pwd;
1086                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1087
1088                 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1089                                                   &user_pol,
1090                                                   24,
1091                                                   &user_info,
1092                                                   &result);
1093         }
1094
1095         if (!NT_STATUS_IS_OK(status)) {
1096
1097                 dcerpc_samr_DeleteUser(b, mem_ctx,
1098                                        &user_pol,
1099                                        &result);
1100
1101                 libnet_join_set_error_string(mem_ctx, r,
1102                         "Failed to set password for machine account (%s)\n",
1103                         nt_errstr(status));
1104                 goto done;
1105         }
1106         if (!NT_STATUS_IS_OK(result)) {
1107                 status = result;
1108
1109                 dcerpc_samr_DeleteUser(b, mem_ctx,
1110                                        &user_pol,
1111                                        &result);
1112
1113                 libnet_join_set_error_string(mem_ctx, r,
1114                         "Failed to set password for machine account (%s)\n",
1115                         nt_errstr(status));
1116                 goto done;
1117         }
1118
1119         status = NT_STATUS_OK;
1120
1121  done:
1122         if (!pipe_hnd) {
1123                 return status;
1124         }
1125
1126         if (is_valid_policy_hnd(&sam_pol)) {
1127                 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1128         }
1129         if (is_valid_policy_hnd(&domain_pol)) {
1130                 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1131         }
1132         if (is_valid_policy_hnd(&user_pol)) {
1133                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1134         }
1135         TALLOC_FREE(pipe_hnd);
1136
1137         return status;
1138 }
1139
1140 /****************************************************************
1141 ****************************************************************/
1142
1143 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1144                         const char *machine_name,
1145                         const char *dc_name)
1146 {
1147         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1148         struct cli_state *cli = NULL;
1149         struct rpc_pipe_client *pipe_hnd = NULL;
1150         struct rpc_pipe_client *netlogon_pipe = NULL;
1151         NTSTATUS status;
1152         char *machine_password = NULL;
1153         char *machine_account = NULL;
1154
1155         if (!dc_name) {
1156                 return NT_STATUS_INVALID_PARAMETER;
1157         }
1158
1159         if (!secrets_init()) {
1160                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1161         }
1162
1163         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1164                                                           NULL, NULL);
1165         if (!machine_password) {
1166                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1167         }
1168
1169         if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1170                 SAFE_FREE(machine_password);
1171                 return NT_STATUS_NO_MEMORY;
1172         }
1173
1174         status = cli_full_connection(&cli, NULL,
1175                                      dc_name,
1176                                      NULL, 0,
1177                                      "IPC$", "IPC",
1178                                      machine_account,
1179                                      NULL,
1180                                      machine_password,
1181                                      0,
1182                                      Undefined);
1183         free(machine_account);
1184         free(machine_password);
1185
1186         if (!NT_STATUS_IS_OK(status)) {
1187                 status = cli_full_connection(&cli, NULL,
1188                                              dc_name,
1189                                              NULL, 0,
1190                                              "IPC$", "IPC",
1191                                              "",
1192                                              NULL,
1193                                              "",
1194                                              0,
1195                                              Undefined);
1196         }
1197
1198         if (!NT_STATUS_IS_OK(status)) {
1199                 return status;
1200         }
1201
1202         status = get_schannel_session_key(cli, netbios_domain_name,
1203                                           &neg_flags, &netlogon_pipe);
1204         if (!NT_STATUS_IS_OK(status)) {
1205                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1206                         cli_shutdown(cli);
1207                         return NT_STATUS_OK;
1208                 }
1209
1210                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1211                         "key from server %s for domain %s. Error was %s\n",
1212                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1213                 cli_shutdown(cli);
1214                 return status;
1215         }
1216
1217         if (!lp_client_schannel()) {
1218                 cli_shutdown(cli);
1219                 return NT_STATUS_OK;
1220         }
1221
1222         status = cli_rpc_pipe_open_schannel_with_key(
1223                 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1224                 DCERPC_AUTH_LEVEL_PRIVACY,
1225                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1226
1227         cli_shutdown(cli);
1228
1229         if (!NT_STATUS_IS_OK(status)) {
1230                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1231                         "on netlogon pipe to server %s for domain %s. "
1232                         "Error was %s\n",
1233                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1234                 return status;
1235         }
1236
1237         return NT_STATUS_OK;
1238 }
1239
1240 /****************************************************************
1241 ****************************************************************/
1242
1243 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1244                                       struct libnet_JoinCtx *r)
1245 {
1246         NTSTATUS status;
1247
1248         status = libnet_join_ok(r->out.netbios_domain_name,
1249                                 r->in.machine_name,
1250                                 r->in.dc_name);
1251         if (!NT_STATUS_IS_OK(status)) {
1252                 libnet_join_set_error_string(mem_ctx, r,
1253                         "failed to verify domain membership after joining: %s",
1254                         get_friendly_nt_error_msg(status));
1255                 return WERR_SETUP_NOT_JOINED;
1256         }
1257
1258         return WERR_OK;
1259 }
1260
1261 /****************************************************************
1262 ****************************************************************/
1263
1264 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1265                                                     struct libnet_UnjoinCtx *r)
1266 {
1267         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1268                 return false;
1269         }
1270
1271         if (!secrets_delete_domain_sid(lp_workgroup())) {
1272                 return false;
1273         }
1274
1275         return true;
1276 }
1277
1278 /****************************************************************
1279 ****************************************************************/
1280
1281 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1282                                              struct libnet_UnjoinCtx *r)
1283 {
1284         struct cli_state *cli = NULL;
1285         struct rpc_pipe_client *pipe_hnd = NULL;
1286         struct policy_handle sam_pol, domain_pol, user_pol;
1287         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1288         char *acct_name;
1289         uint32_t user_rid;
1290         struct lsa_String lsa_acct_name;
1291         struct samr_Ids user_rids;
1292         struct samr_Ids name_types;
1293         union samr_UserInfo *info = NULL;
1294         struct dcerpc_binding_handle *b;
1295
1296         ZERO_STRUCT(sam_pol);
1297         ZERO_STRUCT(domain_pol);
1298         ZERO_STRUCT(user_pol);
1299
1300         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1301                                             r->in.admin_account,
1302                                             r->in.admin_password,
1303                                             r->in.use_kerberos,
1304                                             &cli);
1305         if (!NT_STATUS_IS_OK(status)) {
1306                 goto done;
1307         }
1308
1309         /* Open the domain */
1310
1311         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1312                                           &pipe_hnd);
1313         if (!NT_STATUS_IS_OK(status)) {
1314                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1315                         nt_errstr(status)));
1316                 goto done;
1317         }
1318
1319         b = pipe_hnd->binding_handle;
1320
1321         status = dcerpc_samr_Connect2(b, mem_ctx,
1322                                       pipe_hnd->desthost,
1323                                       SEC_FLAG_MAXIMUM_ALLOWED,
1324                                       &sam_pol,
1325                                       &result);
1326         if (!NT_STATUS_IS_OK(status)) {
1327                 goto done;
1328         }
1329         if (!NT_STATUS_IS_OK(result)) {
1330                 status = result;
1331                 goto done;
1332         }
1333
1334         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1335                                         &sam_pol,
1336                                         SEC_FLAG_MAXIMUM_ALLOWED,
1337                                         r->in.domain_sid,
1338                                         &domain_pol,
1339                                         &result);
1340         if (!NT_STATUS_IS_OK(status)) {
1341                 goto done;
1342         }
1343         if (!NT_STATUS_IS_OK(result)) {
1344                 status = result;
1345                 goto done;
1346         }
1347
1348         /* Create domain user */
1349
1350         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1351         strlower_m(acct_name);
1352
1353         init_lsa_String(&lsa_acct_name, acct_name);
1354
1355         status = dcerpc_samr_LookupNames(b, mem_ctx,
1356                                          &domain_pol,
1357                                          1,
1358                                          &lsa_acct_name,
1359                                          &user_rids,
1360                                          &name_types,
1361                                          &result);
1362
1363         if (!NT_STATUS_IS_OK(status)) {
1364                 goto done;
1365         }
1366         if (!NT_STATUS_IS_OK(result)) {
1367                 status = result;
1368                 goto done;
1369         }
1370
1371         if (name_types.ids[0] != SID_NAME_USER) {
1372                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1373                         name_types.ids[0]));
1374                 status = NT_STATUS_INVALID_WORKSTATION;
1375                 goto done;
1376         }
1377
1378         user_rid = user_rids.ids[0];
1379
1380         /* Open handle on user */
1381
1382         status = dcerpc_samr_OpenUser(b, mem_ctx,
1383                                       &domain_pol,
1384                                       SEC_FLAG_MAXIMUM_ALLOWED,
1385                                       user_rid,
1386                                       &user_pol,
1387                                       &result);
1388         if (!NT_STATUS_IS_OK(status)) {
1389                 goto done;
1390         }
1391         if (!NT_STATUS_IS_OK(result)) {
1392                 status = result;
1393                 goto done;
1394         }
1395
1396         /* Get user info */
1397
1398         status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1399                                            &user_pol,
1400                                            16,
1401                                            &info,
1402                                            &result);
1403         if (!NT_STATUS_IS_OK(status)) {
1404                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1405                 goto done;
1406         }
1407         if (!NT_STATUS_IS_OK(result)) {
1408                 status = result;
1409                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1410                 goto done;
1411         }
1412
1413         /* now disable and setuser info */
1414
1415         info->info16.acct_flags |= ACB_DISABLED;
1416
1417         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1418                                          &user_pol,
1419                                          16,
1420                                          info,
1421                                          &result);
1422         if (!NT_STATUS_IS_OK(status)) {
1423                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1424                 goto done;
1425         }
1426         if (!NT_STATUS_IS_OK(result)) {
1427                 status = result;
1428                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1429                 goto done;
1430         }
1431         status = result;
1432         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1433
1434 done:
1435         if (pipe_hnd) {
1436                 if (is_valid_policy_hnd(&domain_pol)) {
1437                         dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1438                 }
1439                 if (is_valid_policy_hnd(&sam_pol)) {
1440                         dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1441                 }
1442                 TALLOC_FREE(pipe_hnd);
1443         }
1444
1445         if (cli) {
1446                 cli_shutdown(cli);
1447         }
1448
1449         return status;
1450 }
1451
1452 /****************************************************************
1453 ****************************************************************/
1454
1455 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1456 {
1457         WERROR werr;
1458         struct smbconf_ctx *ctx;
1459
1460         werr = smbconf_init_reg(r, &ctx, NULL);
1461         if (!W_ERROR_IS_OK(werr)) {
1462                 goto done;
1463         }
1464
1465         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1466
1467                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1468                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1469
1470                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1471                                                     r->in.domain_name);
1472
1473                 smbconf_delete_global_parameter(ctx, "realm");
1474                 goto done;
1475         }
1476
1477         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1478         W_ERROR_NOT_OK_GOTO_DONE(werr);
1479
1480         werr = smbconf_set_global_parameter(ctx, "workgroup",
1481                                             r->out.netbios_domain_name);
1482         W_ERROR_NOT_OK_GOTO_DONE(werr);
1483
1484         if (r->out.domain_is_ad) {
1485                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1486                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1487
1488                 werr = smbconf_set_global_parameter(ctx, "realm",
1489                                                     r->out.dns_domain_name);
1490                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1491         }
1492
1493  done:
1494         smbconf_shutdown(ctx);
1495         return werr;
1496 }
1497
1498 /****************************************************************
1499 ****************************************************************/
1500
1501 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1502 {
1503         WERROR werr = WERR_OK;
1504         struct smbconf_ctx *ctx;
1505
1506         werr = smbconf_init_reg(r, &ctx, NULL);
1507         if (!W_ERROR_IS_OK(werr)) {
1508                 goto done;
1509         }
1510
1511         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1512
1513                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1514                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1515
1516                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1517                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1518
1519                 smbconf_delete_global_parameter(ctx, "realm");
1520         }
1521
1522  done:
1523         smbconf_shutdown(ctx);
1524         return werr;
1525 }
1526
1527 /****************************************************************
1528 ****************************************************************/
1529
1530 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1531 {
1532         WERROR werr;
1533
1534         if (!W_ERROR_IS_OK(r->out.result)) {
1535                 return r->out.result;
1536         }
1537
1538         if (!r->in.modify_config) {
1539                 return WERR_OK;
1540         }
1541
1542         werr = do_join_modify_vals_config(r);
1543         if (!W_ERROR_IS_OK(werr)) {
1544                 return werr;
1545         }
1546
1547         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1548
1549         r->out.modified_config = true;
1550         r->out.result = werr;
1551
1552         return werr;
1553 }
1554
1555 /****************************************************************
1556 ****************************************************************/
1557
1558 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1559 {
1560         WERROR werr;
1561
1562         if (!W_ERROR_IS_OK(r->out.result)) {
1563                 return r->out.result;
1564         }
1565
1566         if (!r->in.modify_config) {
1567                 return WERR_OK;
1568         }
1569
1570         werr = do_unjoin_modify_vals_config(r);
1571         if (!W_ERROR_IS_OK(werr)) {
1572                 return werr;
1573         }
1574
1575         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1576
1577         r->out.modified_config = true;
1578         r->out.result = werr;
1579
1580         return werr;
1581 }
1582
1583 /****************************************************************
1584 ****************************************************************/
1585
1586 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1587                                    const char *domain_str,
1588                                    const char **domain_p,
1589                                    const char **dc_p)
1590 {
1591         char *domain = NULL;
1592         char *dc = NULL;
1593         const char *p = NULL;
1594
1595         if (!domain_str || !domain_p || !dc_p) {
1596                 return false;
1597         }
1598
1599         p = strchr_m(domain_str, '\\');
1600
1601         if (p != NULL) {
1602                 domain = talloc_strndup(mem_ctx, domain_str,
1603                                          PTR_DIFF(p, domain_str));
1604                 dc = talloc_strdup(mem_ctx, p+1);
1605                 if (!dc) {
1606                         return false;
1607                 }
1608         } else {
1609                 domain = talloc_strdup(mem_ctx, domain_str);
1610                 dc = NULL;
1611         }
1612         if (!domain) {
1613                 return false;
1614         }
1615
1616         *domain_p = domain;
1617
1618         if (!*dc_p && dc) {
1619                 *dc_p = dc;
1620         }
1621
1622         return true;
1623 }
1624
1625 /****************************************************************
1626 ****************************************************************/
1627
1628 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1629                                          struct libnet_JoinCtx *r)
1630 {
1631         if (!r->in.domain_name) {
1632                 libnet_join_set_error_string(mem_ctx, r,
1633                         "No domain name defined");
1634                 return WERR_INVALID_PARAM;
1635         }
1636
1637         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1638                                     &r->in.domain_name,
1639                                     &r->in.dc_name)) {
1640                 libnet_join_set_error_string(mem_ctx, r,
1641                         "Failed to parse domain name");
1642                 return WERR_INVALID_PARAM;
1643         }
1644
1645         if (IS_DC) {
1646                 return WERR_SETUP_DOMAIN_CONTROLLER;
1647         }
1648
1649         if (!secrets_init()) {
1650                 libnet_join_set_error_string(mem_ctx, r,
1651                         "Unable to open secrets database");
1652                 return WERR_CAN_NOT_COMPLETE;
1653         }
1654
1655         return WERR_OK;
1656 }
1657
1658 /****************************************************************
1659 ****************************************************************/
1660
1661 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1662 {
1663         NTSTATUS status;
1664
1665         /* Try adding dom admins to builtin\admins. Only log failures. */
1666         status = create_builtin_administrators(domain_sid);
1667         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1668                 DEBUG(10,("Unable to auto-add domain administrators to "
1669                           "BUILTIN\\Administrators during join because "
1670                           "winbindd must be running."));
1671         } else if (!NT_STATUS_IS_OK(status)) {
1672                 DEBUG(5, ("Failed to auto-add domain administrators to "
1673                           "BUILTIN\\Administrators during join: %s\n",
1674                           nt_errstr(status)));
1675         }
1676
1677         /* Try adding dom users to builtin\users. Only log failures. */
1678         status = create_builtin_users(domain_sid);
1679         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1680                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1681                           "during join because winbindd must be running."));
1682         } else if (!NT_STATUS_IS_OK(status)) {
1683                 DEBUG(5, ("Failed to auto-add domain administrators to "
1684                           "BUILTIN\\Administrators during join: %s\n",
1685                           nt_errstr(status)));
1686         }
1687 }
1688
1689 /****************************************************************
1690 ****************************************************************/
1691
1692 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1693                                           struct libnet_JoinCtx *r)
1694 {
1695         WERROR werr;
1696
1697         if (!W_ERROR_IS_OK(r->out.result)) {
1698                 return r->out.result;
1699         }
1700
1701         werr = do_JoinConfig(r);
1702         if (!W_ERROR_IS_OK(werr)) {
1703                 return werr;
1704         }
1705
1706         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1707                 return WERR_OK;
1708         }
1709
1710         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1711         if (r->out.dns_domain_name) {
1712                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1713         }
1714
1715 #ifdef HAVE_ADS
1716         if (r->out.domain_is_ad &&
1717             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1718                 ADS_STATUS ads_status;
1719
1720                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1721                 if (!ADS_ERR_OK(ads_status)) {
1722                         return WERR_GENERAL_FAILURE;
1723                 }
1724         }
1725 #endif /* HAVE_ADS */
1726
1727         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1728
1729         return WERR_OK;
1730 }
1731
1732 /****************************************************************
1733 ****************************************************************/
1734
1735 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1736 {
1737         const char *krb5_cc_env = NULL;
1738
1739         if (r->in.ads) {
1740                 ads_destroy(&r->in.ads);
1741         }
1742
1743         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1744         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1745                 unsetenv(KRB5_ENV_CCNAME);
1746         }
1747
1748         return 0;
1749 }
1750
1751 /****************************************************************
1752 ****************************************************************/
1753
1754 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1755 {
1756         const char *krb5_cc_env = NULL;
1757
1758         if (r->in.ads) {
1759                 ads_destroy(&r->in.ads);
1760         }
1761
1762         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1763         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1764                 unsetenv(KRB5_ENV_CCNAME);
1765         }
1766
1767         return 0;
1768 }
1769
1770 /****************************************************************
1771 ****************************************************************/
1772
1773 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1774                            struct libnet_JoinCtx **r)
1775 {
1776         struct libnet_JoinCtx *ctx;
1777         const char *krb5_cc_env = NULL;
1778
1779         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1780         if (!ctx) {
1781                 return WERR_NOMEM;
1782         }
1783
1784         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1785
1786         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1787         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1788
1789         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1790         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1791                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1792                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1793                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1794         }
1795
1796         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1797
1798         *r = ctx;
1799
1800         return WERR_OK;
1801 }
1802
1803 /****************************************************************
1804 ****************************************************************/
1805
1806 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1807                              struct libnet_UnjoinCtx **r)
1808 {
1809         struct libnet_UnjoinCtx *ctx;
1810         const char *krb5_cc_env = NULL;
1811
1812         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1813         if (!ctx) {
1814                 return WERR_NOMEM;
1815         }
1816
1817         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1818
1819         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1820         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1821
1822         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1823         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1824                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1825                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1826                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1827         }
1828
1829         *r = ctx;
1830
1831         return WERR_OK;
1832 }
1833
1834 /****************************************************************
1835 ****************************************************************/
1836
1837 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1838                                        struct libnet_JoinCtx *r)
1839 {
1840         bool valid_security = false;
1841         bool valid_workgroup = false;
1842         bool valid_realm = false;
1843
1844         /* check if configuration is already set correctly */
1845
1846         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1847
1848         switch (r->out.domain_is_ad) {
1849                 case false:
1850                         valid_security = (lp_security() == SEC_DOMAIN);
1851                         if (valid_workgroup && valid_security) {
1852                                 /* nothing to be done */
1853                                 return WERR_OK;
1854                         }
1855                         break;
1856                 case true:
1857                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1858                         switch (lp_security()) {
1859                         case SEC_DOMAIN:
1860                         case SEC_ADS:
1861                                 valid_security = true;
1862                         }
1863
1864                         if (valid_workgroup && valid_realm && valid_security) {
1865                                 /* nothing to be done */
1866                                 return WERR_OK;
1867                         }
1868                         break;
1869         }
1870
1871         /* check if we are supposed to manipulate configuration */
1872
1873         if (!r->in.modify_config) {
1874
1875                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1876
1877                 if (!valid_workgroup) {
1878                         wrong_conf = talloc_asprintf_append(wrong_conf,
1879                                 "\"workgroup\" set to '%s', should be '%s'",
1880                                 lp_workgroup(), r->out.netbios_domain_name);
1881                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1882                 }
1883
1884                 if (!valid_realm) {
1885                         wrong_conf = talloc_asprintf_append(wrong_conf,
1886                                 "\"realm\" set to '%s', should be '%s'",
1887                                 lp_realm(), r->out.dns_domain_name);
1888                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1889                 }
1890
1891                 if (!valid_security) {
1892                         const char *sec = NULL;
1893                         switch (lp_security()) {
1894                         case SEC_SHARE: sec = "share"; break;
1895                         case SEC_USER:  sec = "user"; break;
1896                         case SEC_DOMAIN: sec = "domain"; break;
1897                         case SEC_ADS: sec = "ads"; break;
1898                         }
1899                         wrong_conf = talloc_asprintf_append(wrong_conf,
1900                                 "\"security\" set to '%s', should be %s",
1901                                 sec, r->out.domain_is_ad ?
1902                                 "either 'domain' or 'ads'" : "'domain'");
1903                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1904                 }
1905
1906                 libnet_join_set_error_string(mem_ctx, r,
1907                         "Invalid configuration (%s) and configuration modification "
1908                         "was not requested", wrong_conf);
1909                 return WERR_CAN_NOT_COMPLETE;
1910         }
1911
1912         /* check if we are able to manipulate configuration */
1913
1914         if (!lp_config_backend_is_registry()) {
1915                 libnet_join_set_error_string(mem_ctx, r,
1916                         "Configuration manipulation requested but not "
1917                         "supported by backend");
1918                 return WERR_NOT_SUPPORTED;
1919         }
1920
1921         return WERR_OK;
1922 }
1923
1924 /****************************************************************
1925 ****************************************************************/
1926
1927 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1928                                 struct libnet_JoinCtx *r)
1929 {
1930         NTSTATUS status;
1931         WERROR werr;
1932         struct cli_state *cli = NULL;
1933 #ifdef HAVE_ADS
1934         ADS_STATUS ads_status;
1935 #endif /* HAVE_ADS */
1936
1937         if (!r->in.dc_name) {
1938                 struct netr_DsRGetDCNameInfo *info;
1939                 const char *dc;
1940                 status = dsgetdcname(mem_ctx,
1941                                      r->in.msg_ctx,
1942                                      r->in.domain_name,
1943                                      NULL,
1944                                      NULL,
1945                                      DS_FORCE_REDISCOVERY |
1946                                      DS_DIRECTORY_SERVICE_REQUIRED |
1947                                      DS_WRITABLE_REQUIRED |
1948                                      DS_RETURN_DNS_NAME,
1949                                      &info);
1950                 if (!NT_STATUS_IS_OK(status)) {
1951                         libnet_join_set_error_string(mem_ctx, r,
1952                                 "failed to find DC for domain %s",
1953                                 r->in.domain_name,
1954                                 get_friendly_nt_error_msg(status));
1955                         return WERR_DCNOTFOUND;
1956                 }
1957
1958                 dc = strip_hostname(info->dc_unc);
1959                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1960                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1961         }
1962
1963         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1964         if (!NT_STATUS_IS_OK(status)) {
1965                 libnet_join_set_error_string(mem_ctx, r,
1966                         "failed to lookup DC info for domain '%s' over rpc: %s",
1967                         r->in.domain_name, get_friendly_nt_error_msg(status));
1968                 return ntstatus_to_werror(status);
1969         }
1970
1971         werr = libnet_join_check_config(mem_ctx, r);
1972         if (!W_ERROR_IS_OK(werr)) {
1973                 goto done;
1974         }
1975
1976 #ifdef HAVE_ADS
1977
1978         create_local_private_krb5_conf_for_domain(
1979                 r->out.dns_domain_name, r->out.netbios_domain_name,
1980                 NULL, &cli->dest_ss, cli->desthost);
1981
1982         if (r->out.domain_is_ad && r->in.account_ou &&
1983             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1984
1985                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1986                 if (!ADS_ERR_OK(ads_status)) {
1987                         return WERR_DEFAULT_JOIN_REQUIRED;
1988                 }
1989
1990                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1991                 if (!ADS_ERR_OK(ads_status)) {
1992                         libnet_join_set_error_string(mem_ctx, r,
1993                                 "failed to precreate account in ou %s: %s",
1994                                 r->in.account_ou,
1995                                 ads_errstr(ads_status));
1996                         return WERR_DEFAULT_JOIN_REQUIRED;
1997                 }
1998
1999                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2000         }
2001 #endif /* HAVE_ADS */
2002
2003         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2004             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2005                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2006         } else {
2007                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2008         }
2009         if (!NT_STATUS_IS_OK(status)) {
2010                 libnet_join_set_error_string(mem_ctx, r,
2011                         "failed to join domain '%s' over rpc: %s",
2012                         r->in.domain_name, get_friendly_nt_error_msg(status));
2013                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2014                         return WERR_SETUP_ALREADY_JOINED;
2015                 }
2016                 werr = ntstatus_to_werror(status);
2017                 goto done;
2018         }
2019
2020         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2021                 werr = WERR_SETUP_NOT_JOINED;
2022                 goto done;
2023         }
2024
2025         werr = WERR_OK;
2026
2027  done:
2028         if (cli) {
2029                 cli_shutdown(cli);
2030         }
2031
2032         return werr;
2033 }
2034
2035 /****************************************************************
2036 ****************************************************************/
2037
2038 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2039                                    struct libnet_JoinCtx *r)
2040 {
2041         WERROR werr;
2042         struct libnet_UnjoinCtx *u = NULL;
2043
2044         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2045         if (!W_ERROR_IS_OK(werr)) {
2046                 return werr;
2047         }
2048
2049         u->in.debug             = r->in.debug;
2050         u->in.dc_name           = r->in.dc_name;
2051         u->in.domain_name       = r->in.domain_name;
2052         u->in.admin_account     = r->in.admin_account;
2053         u->in.admin_password    = r->in.admin_password;
2054         u->in.modify_config     = r->in.modify_config;
2055         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2056                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2057
2058         werr = libnet_Unjoin(mem_ctx, u);
2059         TALLOC_FREE(u);
2060
2061         return werr;
2062 }
2063
2064 /****************************************************************
2065 ****************************************************************/
2066
2067 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2068                    struct libnet_JoinCtx *r)
2069 {
2070         WERROR werr;
2071
2072         if (r->in.debug) {
2073                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2074         }
2075
2076         ZERO_STRUCT(r->out);
2077
2078         werr = libnet_join_pre_processing(mem_ctx, r);
2079         if (!W_ERROR_IS_OK(werr)) {
2080                 goto done;
2081         }
2082
2083         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2084                 werr = libnet_DomainJoin(mem_ctx, r);
2085                 if (!W_ERROR_IS_OK(werr)) {
2086                         goto done;
2087                 }
2088         }
2089
2090         werr = libnet_join_post_processing(mem_ctx, r);
2091         if (!W_ERROR_IS_OK(werr)) {
2092                 goto done;
2093         }
2094
2095         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2096                 werr = libnet_join_post_verify(mem_ctx, r);
2097                 if (!W_ERROR_IS_OK(werr)) {
2098                         libnet_join_rollback(mem_ctx, r);
2099                 }
2100         }
2101
2102  done:
2103         r->out.result = werr;
2104
2105         if (r->in.debug) {
2106                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2107         }
2108         return werr;
2109 }
2110
2111 /****************************************************************
2112 ****************************************************************/
2113
2114 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2115                                   struct libnet_UnjoinCtx *r)
2116 {
2117         NTSTATUS status;
2118
2119         if (!r->in.domain_sid) {
2120                 struct dom_sid sid;
2121                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2122                         libnet_unjoin_set_error_string(mem_ctx, r,
2123                                 "Unable to fetch domain sid: are we joined?");
2124                         return WERR_SETUP_NOT_JOINED;
2125                 }
2126                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2127                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2128         }
2129
2130         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2131             !r->in.delete_machine_account) {
2132                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2133                 return WERR_OK;
2134         }
2135
2136         if (!r->in.dc_name) {
2137                 struct netr_DsRGetDCNameInfo *info;
2138                 const char *dc;
2139                 status = dsgetdcname(mem_ctx,
2140                                      r->in.msg_ctx,
2141                                      r->in.domain_name,
2142                                      NULL,
2143                                      NULL,
2144                                      DS_DIRECTORY_SERVICE_REQUIRED |
2145                                      DS_WRITABLE_REQUIRED |
2146                                      DS_RETURN_DNS_NAME,
2147                                      &info);
2148                 if (!NT_STATUS_IS_OK(status)) {
2149                         libnet_unjoin_set_error_string(mem_ctx, r,
2150                                 "failed to find DC for domain %s",
2151                                 r->in.domain_name,
2152                                 get_friendly_nt_error_msg(status));
2153                         return WERR_DCNOTFOUND;
2154                 }
2155
2156                 dc = strip_hostname(info->dc_unc);
2157                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2158                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2159         }
2160
2161 #ifdef HAVE_ADS
2162         /* for net ads leave, try to delete the account.  If it works,
2163            no sense in disabling.  If it fails, we can still try to
2164            disable it. jmcd */
2165
2166         if (r->in.delete_machine_account) {
2167                 ADS_STATUS ads_status;
2168                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2169                 if (ADS_ERR_OK(ads_status)) {
2170                         /* dirty hack */
2171                         r->out.dns_domain_name =
2172                                 talloc_strdup(mem_ctx,
2173                                               r->in.ads->server.realm);
2174                         ads_status =
2175                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2176                 }
2177                 if (!ADS_ERR_OK(ads_status)) {
2178                         libnet_unjoin_set_error_string(mem_ctx, r,
2179                                 "failed to remove machine account from AD: %s",
2180                                 ads_errstr(ads_status));
2181                 } else {
2182                         r->out.deleted_machine_account = true;
2183                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2184                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2185                         return WERR_OK;
2186                 }
2187         }
2188 #endif /* HAVE_ADS */
2189
2190         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2191            "disable".  */
2192         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2193                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2194                 if (!NT_STATUS_IS_OK(status)) {
2195                         libnet_unjoin_set_error_string(mem_ctx, r,
2196                                 "failed to disable machine account via rpc: %s",
2197                                 get_friendly_nt_error_msg(status));
2198                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2199                                 return WERR_SETUP_NOT_JOINED;
2200                         }
2201                         return ntstatus_to_werror(status);
2202                 }
2203
2204                 r->out.disabled_machine_account = true;
2205         }
2206
2207         /* If disable succeeded or was not requested at all, we
2208            should be getting rid of our end of things */
2209
2210         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2211
2212         return WERR_OK;
2213 }
2214
2215 /****************************************************************
2216 ****************************************************************/
2217
2218 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2219                                            struct libnet_UnjoinCtx *r)
2220 {
2221         if (!r->in.domain_name) {
2222                 libnet_unjoin_set_error_string(mem_ctx, r,
2223                         "No domain name defined");
2224                 return WERR_INVALID_PARAM;
2225         }
2226
2227         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2228                                     &r->in.domain_name,
2229                                     &r->in.dc_name)) {
2230                 libnet_unjoin_set_error_string(mem_ctx, r,
2231                         "Failed to parse domain name");
2232                 return WERR_INVALID_PARAM;
2233         }
2234
2235         if (IS_DC) {
2236                 return WERR_SETUP_DOMAIN_CONTROLLER;
2237         }
2238
2239         if (!secrets_init()) {
2240                 libnet_unjoin_set_error_string(mem_ctx, r,
2241                         "Unable to open secrets database");
2242                 return WERR_CAN_NOT_COMPLETE;
2243         }
2244
2245         return WERR_OK;
2246 }
2247
2248 /****************************************************************
2249 ****************************************************************/
2250
2251 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2252                                             struct libnet_UnjoinCtx *r)
2253 {
2254         saf_delete(r->out.netbios_domain_name);
2255         saf_delete(r->out.dns_domain_name);
2256
2257         return libnet_unjoin_config(r);
2258 }
2259
2260 /****************************************************************
2261 ****************************************************************/
2262
2263 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2264                      struct libnet_UnjoinCtx *r)
2265 {
2266         WERROR werr;
2267
2268         if (r->in.debug) {
2269                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2270         }
2271
2272         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2273         if (!W_ERROR_IS_OK(werr)) {
2274                 goto done;
2275         }
2276
2277         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2278                 werr = libnet_DomainUnjoin(mem_ctx, r);
2279                 if (!W_ERROR_IS_OK(werr)) {
2280                         libnet_unjoin_config(r);
2281                         goto done;
2282                 }
2283         }
2284
2285         werr = libnet_unjoin_post_processing(mem_ctx, r);
2286         if (!W_ERROR_IS_OK(werr)) {
2287                 goto done;
2288         }
2289
2290  done:
2291         r->out.result = werr;
2292
2293         if (r->in.debug) {
2294                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2295         }
2296
2297         return werr;
2298 }