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         sbcErr err;
1459         struct smbconf_ctx *ctx;
1460
1461         err = smbconf_init_reg(r, &ctx, NULL);
1462         if (!SBC_ERROR_IS_OK(err)) {
1463                 werr = WERR_NO_SUCH_SERVICE;
1464                 goto done;
1465         }
1466
1467         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1468
1469                 err = smbconf_set_global_parameter(ctx, "security", "user");
1470                 if (!SBC_ERROR_IS_OK(err)) {
1471                         werr = WERR_NO_SUCH_SERVICE;
1472                         goto done;
1473                 }
1474
1475                 err = smbconf_set_global_parameter(ctx, "workgroup",
1476                                                    r->in.domain_name);
1477                 if (!SBC_ERROR_IS_OK(err)) {
1478                         werr = WERR_NO_SUCH_SERVICE;
1479                         goto done;
1480                 }
1481
1482                 smbconf_delete_global_parameter(ctx, "realm");
1483                 goto done;
1484         }
1485
1486         err = smbconf_set_global_parameter(ctx, "security", "domain");
1487         if (!SBC_ERROR_IS_OK(err)) {
1488                 werr = WERR_NO_SUCH_SERVICE;
1489                 goto done;
1490         }
1491
1492         err = smbconf_set_global_parameter(ctx, "workgroup",
1493                                            r->out.netbios_domain_name);
1494         if (!SBC_ERROR_IS_OK(err)) {
1495                 werr = WERR_NO_SUCH_SERVICE;
1496                 goto done;
1497         }
1498
1499         if (r->out.domain_is_ad) {
1500                 err = smbconf_set_global_parameter(ctx, "security", "ads");
1501                 if (!SBC_ERROR_IS_OK(err)) {
1502                         werr = WERR_NO_SUCH_SERVICE;
1503                         goto done;
1504                 }
1505
1506                 err = smbconf_set_global_parameter(ctx, "realm",
1507                                                    r->out.dns_domain_name);
1508                 if (!SBC_ERROR_IS_OK(err)) {
1509                         werr = WERR_NO_SUCH_SERVICE;
1510                         goto done;
1511                 }
1512         }
1513
1514  done:
1515         smbconf_shutdown(ctx);
1516         return werr;
1517 }
1518
1519 /****************************************************************
1520 ****************************************************************/
1521
1522 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1523 {
1524         WERROR werr = WERR_OK;
1525         sbcErr err;
1526         struct smbconf_ctx *ctx;
1527
1528         err = smbconf_init_reg(r, &ctx, NULL);
1529         if (!SBC_ERROR_IS_OK(err)) {
1530                 werr = WERR_NO_SUCH_SERVICE;
1531                 goto done;
1532         }
1533
1534         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1535
1536                 err = smbconf_set_global_parameter(ctx, "security", "user");
1537                 if (!SBC_ERROR_IS_OK(err)) {
1538                         werr = WERR_NO_SUCH_SERVICE;
1539                         goto done;
1540                 }
1541
1542                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1543                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1544
1545                 smbconf_delete_global_parameter(ctx, "realm");
1546         }
1547
1548  done:
1549         smbconf_shutdown(ctx);
1550         return werr;
1551 }
1552
1553 /****************************************************************
1554 ****************************************************************/
1555
1556 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1557 {
1558         WERROR werr;
1559
1560         if (!W_ERROR_IS_OK(r->out.result)) {
1561                 return r->out.result;
1562         }
1563
1564         if (!r->in.modify_config) {
1565                 return WERR_OK;
1566         }
1567
1568         werr = do_join_modify_vals_config(r);
1569         if (!W_ERROR_IS_OK(werr)) {
1570                 return werr;
1571         }
1572
1573         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1574
1575         r->out.modified_config = true;
1576         r->out.result = werr;
1577
1578         return werr;
1579 }
1580
1581 /****************************************************************
1582 ****************************************************************/
1583
1584 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1585 {
1586         WERROR werr;
1587
1588         if (!W_ERROR_IS_OK(r->out.result)) {
1589                 return r->out.result;
1590         }
1591
1592         if (!r->in.modify_config) {
1593                 return WERR_OK;
1594         }
1595
1596         werr = do_unjoin_modify_vals_config(r);
1597         if (!W_ERROR_IS_OK(werr)) {
1598                 return werr;
1599         }
1600
1601         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1602
1603         r->out.modified_config = true;
1604         r->out.result = werr;
1605
1606         return werr;
1607 }
1608
1609 /****************************************************************
1610 ****************************************************************/
1611
1612 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1613                                    const char *domain_str,
1614                                    const char **domain_p,
1615                                    const char **dc_p)
1616 {
1617         char *domain = NULL;
1618         char *dc = NULL;
1619         const char *p = NULL;
1620
1621         if (!domain_str || !domain_p || !dc_p) {
1622                 return false;
1623         }
1624
1625         p = strchr_m(domain_str, '\\');
1626
1627         if (p != NULL) {
1628                 domain = talloc_strndup(mem_ctx, domain_str,
1629                                          PTR_DIFF(p, domain_str));
1630                 dc = talloc_strdup(mem_ctx, p+1);
1631                 if (!dc) {
1632                         return false;
1633                 }
1634         } else {
1635                 domain = talloc_strdup(mem_ctx, domain_str);
1636                 dc = NULL;
1637         }
1638         if (!domain) {
1639                 return false;
1640         }
1641
1642         *domain_p = domain;
1643
1644         if (!*dc_p && dc) {
1645                 *dc_p = dc;
1646         }
1647
1648         return true;
1649 }
1650
1651 /****************************************************************
1652 ****************************************************************/
1653
1654 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1655                                          struct libnet_JoinCtx *r)
1656 {
1657         if (!r->in.domain_name) {
1658                 libnet_join_set_error_string(mem_ctx, r,
1659                         "No domain name defined");
1660                 return WERR_INVALID_PARAM;
1661         }
1662
1663         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1664                                     &r->in.domain_name,
1665                                     &r->in.dc_name)) {
1666                 libnet_join_set_error_string(mem_ctx, r,
1667                         "Failed to parse domain name");
1668                 return WERR_INVALID_PARAM;
1669         }
1670
1671         if (IS_DC) {
1672                 return WERR_SETUP_DOMAIN_CONTROLLER;
1673         }
1674
1675         if (!secrets_init()) {
1676                 libnet_join_set_error_string(mem_ctx, r,
1677                         "Unable to open secrets database");
1678                 return WERR_CAN_NOT_COMPLETE;
1679         }
1680
1681         return WERR_OK;
1682 }
1683
1684 /****************************************************************
1685 ****************************************************************/
1686
1687 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1688 {
1689         NTSTATUS status;
1690
1691         /* Try adding dom admins to builtin\admins. Only log failures. */
1692         status = create_builtin_administrators(domain_sid);
1693         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1694                 DEBUG(10,("Unable to auto-add domain administrators to "
1695                           "BUILTIN\\Administrators during join because "
1696                           "winbindd must be running."));
1697         } else if (!NT_STATUS_IS_OK(status)) {
1698                 DEBUG(5, ("Failed to auto-add domain administrators to "
1699                           "BUILTIN\\Administrators during join: %s\n",
1700                           nt_errstr(status)));
1701         }
1702
1703         /* Try adding dom users to builtin\users. Only log failures. */
1704         status = create_builtin_users(domain_sid);
1705         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1706                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1707                           "during join because winbindd must be running."));
1708         } else if (!NT_STATUS_IS_OK(status)) {
1709                 DEBUG(5, ("Failed to auto-add domain administrators to "
1710                           "BUILTIN\\Administrators during join: %s\n",
1711                           nt_errstr(status)));
1712         }
1713 }
1714
1715 /****************************************************************
1716 ****************************************************************/
1717
1718 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1719                                           struct libnet_JoinCtx *r)
1720 {
1721         WERROR werr;
1722
1723         if (!W_ERROR_IS_OK(r->out.result)) {
1724                 return r->out.result;
1725         }
1726
1727         werr = do_JoinConfig(r);
1728         if (!W_ERROR_IS_OK(werr)) {
1729                 return werr;
1730         }
1731
1732         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1733                 return WERR_OK;
1734         }
1735
1736         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1737         if (r->out.dns_domain_name) {
1738                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1739         }
1740
1741 #ifdef HAVE_ADS
1742         if (r->out.domain_is_ad &&
1743             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1744                 ADS_STATUS ads_status;
1745
1746                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1747                 if (!ADS_ERR_OK(ads_status)) {
1748                         return WERR_GENERAL_FAILURE;
1749                 }
1750         }
1751 #endif /* HAVE_ADS */
1752
1753         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1754
1755         return WERR_OK;
1756 }
1757
1758 /****************************************************************
1759 ****************************************************************/
1760
1761 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1762 {
1763         const char *krb5_cc_env = NULL;
1764
1765         if (r->in.ads) {
1766                 ads_destroy(&r->in.ads);
1767         }
1768
1769         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1770         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1771                 unsetenv(KRB5_ENV_CCNAME);
1772         }
1773
1774         return 0;
1775 }
1776
1777 /****************************************************************
1778 ****************************************************************/
1779
1780 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1781 {
1782         const char *krb5_cc_env = NULL;
1783
1784         if (r->in.ads) {
1785                 ads_destroy(&r->in.ads);
1786         }
1787
1788         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1789         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1790                 unsetenv(KRB5_ENV_CCNAME);
1791         }
1792
1793         return 0;
1794 }
1795
1796 /****************************************************************
1797 ****************************************************************/
1798
1799 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1800                            struct libnet_JoinCtx **r)
1801 {
1802         struct libnet_JoinCtx *ctx;
1803         const char *krb5_cc_env = NULL;
1804
1805         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1806         if (!ctx) {
1807                 return WERR_NOMEM;
1808         }
1809
1810         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1811
1812         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1813         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1814
1815         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1816         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1817                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1818                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1819                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1820         }
1821
1822         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1823
1824         *r = ctx;
1825
1826         return WERR_OK;
1827 }
1828
1829 /****************************************************************
1830 ****************************************************************/
1831
1832 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1833                              struct libnet_UnjoinCtx **r)
1834 {
1835         struct libnet_UnjoinCtx *ctx;
1836         const char *krb5_cc_env = NULL;
1837
1838         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1839         if (!ctx) {
1840                 return WERR_NOMEM;
1841         }
1842
1843         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1844
1845         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1846         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1847
1848         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1849         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1850                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1851                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1852                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1853         }
1854
1855         *r = ctx;
1856
1857         return WERR_OK;
1858 }
1859
1860 /****************************************************************
1861 ****************************************************************/
1862
1863 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1864                                        struct libnet_JoinCtx *r)
1865 {
1866         bool valid_security = false;
1867         bool valid_workgroup = false;
1868         bool valid_realm = false;
1869
1870         /* check if configuration is already set correctly */
1871
1872         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1873
1874         switch (r->out.domain_is_ad) {
1875                 case false:
1876                         valid_security = (lp_security() == SEC_DOMAIN);
1877                         if (valid_workgroup && valid_security) {
1878                                 /* nothing to be done */
1879                                 return WERR_OK;
1880                         }
1881                         break;
1882                 case true:
1883                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1884                         switch (lp_security()) {
1885                         case SEC_DOMAIN:
1886                         case SEC_ADS:
1887                                 valid_security = true;
1888                         }
1889
1890                         if (valid_workgroup && valid_realm && valid_security) {
1891                                 /* nothing to be done */
1892                                 return WERR_OK;
1893                         }
1894                         break;
1895         }
1896
1897         /* check if we are supposed to manipulate configuration */
1898
1899         if (!r->in.modify_config) {
1900
1901                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1902
1903                 if (!valid_workgroup) {
1904                         wrong_conf = talloc_asprintf_append(wrong_conf,
1905                                 "\"workgroup\" set to '%s', should be '%s'",
1906                                 lp_workgroup(), r->out.netbios_domain_name);
1907                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1908                 }
1909
1910                 if (!valid_realm) {
1911                         wrong_conf = talloc_asprintf_append(wrong_conf,
1912                                 "\"realm\" set to '%s', should be '%s'",
1913                                 lp_realm(), r->out.dns_domain_name);
1914                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1915                 }
1916
1917                 if (!valid_security) {
1918                         const char *sec = NULL;
1919                         switch (lp_security()) {
1920                         case SEC_SHARE: sec = "share"; break;
1921                         case SEC_USER:  sec = "user"; break;
1922                         case SEC_DOMAIN: sec = "domain"; break;
1923                         case SEC_ADS: sec = "ads"; break;
1924                         }
1925                         wrong_conf = talloc_asprintf_append(wrong_conf,
1926                                 "\"security\" set to '%s', should be %s",
1927                                 sec, r->out.domain_is_ad ?
1928                                 "either 'domain' or 'ads'" : "'domain'");
1929                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1930                 }
1931
1932                 libnet_join_set_error_string(mem_ctx, r,
1933                         "Invalid configuration (%s) and configuration modification "
1934                         "was not requested", wrong_conf);
1935                 return WERR_CAN_NOT_COMPLETE;
1936         }
1937
1938         /* check if we are able to manipulate configuration */
1939
1940         if (!lp_config_backend_is_registry()) {
1941                 libnet_join_set_error_string(mem_ctx, r,
1942                         "Configuration manipulation requested but not "
1943                         "supported by backend");
1944                 return WERR_NOT_SUPPORTED;
1945         }
1946
1947         return WERR_OK;
1948 }
1949
1950 /****************************************************************
1951 ****************************************************************/
1952
1953 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1954                                 struct libnet_JoinCtx *r)
1955 {
1956         NTSTATUS status;
1957         WERROR werr;
1958         struct cli_state *cli = NULL;
1959 #ifdef HAVE_ADS
1960         ADS_STATUS ads_status;
1961 #endif /* HAVE_ADS */
1962
1963         if (!r->in.dc_name) {
1964                 struct netr_DsRGetDCNameInfo *info;
1965                 const char *dc;
1966                 status = dsgetdcname(mem_ctx,
1967                                      r->in.msg_ctx,
1968                                      r->in.domain_name,
1969                                      NULL,
1970                                      NULL,
1971                                      DS_FORCE_REDISCOVERY |
1972                                      DS_DIRECTORY_SERVICE_REQUIRED |
1973                                      DS_WRITABLE_REQUIRED |
1974                                      DS_RETURN_DNS_NAME,
1975                                      &info);
1976                 if (!NT_STATUS_IS_OK(status)) {
1977                         libnet_join_set_error_string(mem_ctx, r,
1978                                 "failed to find DC for domain %s",
1979                                 r->in.domain_name,
1980                                 get_friendly_nt_error_msg(status));
1981                         return WERR_DCNOTFOUND;
1982                 }
1983
1984                 dc = strip_hostname(info->dc_unc);
1985                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1986                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1987         }
1988
1989         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1990         if (!NT_STATUS_IS_OK(status)) {
1991                 libnet_join_set_error_string(mem_ctx, r,
1992                         "failed to lookup DC info for domain '%s' over rpc: %s",
1993                         r->in.domain_name, get_friendly_nt_error_msg(status));
1994                 return ntstatus_to_werror(status);
1995         }
1996
1997         werr = libnet_join_check_config(mem_ctx, r);
1998         if (!W_ERROR_IS_OK(werr)) {
1999                 goto done;
2000         }
2001
2002 #ifdef HAVE_ADS
2003
2004         create_local_private_krb5_conf_for_domain(
2005                 r->out.dns_domain_name, r->out.netbios_domain_name,
2006                 NULL, &cli->dest_ss, cli->desthost);
2007
2008         if (r->out.domain_is_ad && r->in.account_ou &&
2009             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2010
2011                 ads_status = libnet_join_connect_ads(mem_ctx, r);
2012                 if (!ADS_ERR_OK(ads_status)) {
2013                         return WERR_DEFAULT_JOIN_REQUIRED;
2014                 }
2015
2016                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2017                 if (!ADS_ERR_OK(ads_status)) {
2018                         libnet_join_set_error_string(mem_ctx, r,
2019                                 "failed to precreate account in ou %s: %s",
2020                                 r->in.account_ou,
2021                                 ads_errstr(ads_status));
2022                         return WERR_DEFAULT_JOIN_REQUIRED;
2023                 }
2024
2025                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2026         }
2027 #endif /* HAVE_ADS */
2028
2029         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2030             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2031                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2032         } else {
2033                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2034         }
2035         if (!NT_STATUS_IS_OK(status)) {
2036                 libnet_join_set_error_string(mem_ctx, r,
2037                         "failed to join domain '%s' over rpc: %s",
2038                         r->in.domain_name, get_friendly_nt_error_msg(status));
2039                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2040                         return WERR_SETUP_ALREADY_JOINED;
2041                 }
2042                 werr = ntstatus_to_werror(status);
2043                 goto done;
2044         }
2045
2046         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2047                 werr = WERR_SETUP_NOT_JOINED;
2048                 goto done;
2049         }
2050
2051         werr = WERR_OK;
2052
2053  done:
2054         if (cli) {
2055                 cli_shutdown(cli);
2056         }
2057
2058         return werr;
2059 }
2060
2061 /****************************************************************
2062 ****************************************************************/
2063
2064 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2065                                    struct libnet_JoinCtx *r)
2066 {
2067         WERROR werr;
2068         struct libnet_UnjoinCtx *u = NULL;
2069
2070         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2071         if (!W_ERROR_IS_OK(werr)) {
2072                 return werr;
2073         }
2074
2075         u->in.debug             = r->in.debug;
2076         u->in.dc_name           = r->in.dc_name;
2077         u->in.domain_name       = r->in.domain_name;
2078         u->in.admin_account     = r->in.admin_account;
2079         u->in.admin_password    = r->in.admin_password;
2080         u->in.modify_config     = r->in.modify_config;
2081         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2082                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2083
2084         werr = libnet_Unjoin(mem_ctx, u);
2085         TALLOC_FREE(u);
2086
2087         return werr;
2088 }
2089
2090 /****************************************************************
2091 ****************************************************************/
2092
2093 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2094                    struct libnet_JoinCtx *r)
2095 {
2096         WERROR werr;
2097
2098         if (r->in.debug) {
2099                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2100         }
2101
2102         ZERO_STRUCT(r->out);
2103
2104         werr = libnet_join_pre_processing(mem_ctx, r);
2105         if (!W_ERROR_IS_OK(werr)) {
2106                 goto done;
2107         }
2108
2109         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2110                 werr = libnet_DomainJoin(mem_ctx, r);
2111                 if (!W_ERROR_IS_OK(werr)) {
2112                         goto done;
2113                 }
2114         }
2115
2116         werr = libnet_join_post_processing(mem_ctx, r);
2117         if (!W_ERROR_IS_OK(werr)) {
2118                 goto done;
2119         }
2120
2121         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2122                 werr = libnet_join_post_verify(mem_ctx, r);
2123                 if (!W_ERROR_IS_OK(werr)) {
2124                         libnet_join_rollback(mem_ctx, r);
2125                 }
2126         }
2127
2128  done:
2129         r->out.result = werr;
2130
2131         if (r->in.debug) {
2132                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2133         }
2134         return werr;
2135 }
2136
2137 /****************************************************************
2138 ****************************************************************/
2139
2140 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2141                                   struct libnet_UnjoinCtx *r)
2142 {
2143         NTSTATUS status;
2144
2145         if (!r->in.domain_sid) {
2146                 struct dom_sid sid;
2147                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2148                         libnet_unjoin_set_error_string(mem_ctx, r,
2149                                 "Unable to fetch domain sid: are we joined?");
2150                         return WERR_SETUP_NOT_JOINED;
2151                 }
2152                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2153                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2154         }
2155
2156         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2157             !r->in.delete_machine_account) {
2158                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2159                 return WERR_OK;
2160         }
2161
2162         if (!r->in.dc_name) {
2163                 struct netr_DsRGetDCNameInfo *info;
2164                 const char *dc;
2165                 status = dsgetdcname(mem_ctx,
2166                                      r->in.msg_ctx,
2167                                      r->in.domain_name,
2168                                      NULL,
2169                                      NULL,
2170                                      DS_DIRECTORY_SERVICE_REQUIRED |
2171                                      DS_WRITABLE_REQUIRED |
2172                                      DS_RETURN_DNS_NAME,
2173                                      &info);
2174                 if (!NT_STATUS_IS_OK(status)) {
2175                         libnet_unjoin_set_error_string(mem_ctx, r,
2176                                 "failed to find DC for domain %s",
2177                                 r->in.domain_name,
2178                                 get_friendly_nt_error_msg(status));
2179                         return WERR_DCNOTFOUND;
2180                 }
2181
2182                 dc = strip_hostname(info->dc_unc);
2183                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2184                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2185         }
2186
2187 #ifdef HAVE_ADS
2188         /* for net ads leave, try to delete the account.  If it works,
2189            no sense in disabling.  If it fails, we can still try to
2190            disable it. jmcd */
2191
2192         if (r->in.delete_machine_account) {
2193                 ADS_STATUS ads_status;
2194                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2195                 if (ADS_ERR_OK(ads_status)) {
2196                         /* dirty hack */
2197                         r->out.dns_domain_name =
2198                                 talloc_strdup(mem_ctx,
2199                                               r->in.ads->server.realm);
2200                         ads_status =
2201                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2202                 }
2203                 if (!ADS_ERR_OK(ads_status)) {
2204                         libnet_unjoin_set_error_string(mem_ctx, r,
2205                                 "failed to remove machine account from AD: %s",
2206                                 ads_errstr(ads_status));
2207                 } else {
2208                         r->out.deleted_machine_account = true;
2209                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2210                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2211                         return WERR_OK;
2212                 }
2213         }
2214 #endif /* HAVE_ADS */
2215
2216         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2217            "disable".  */
2218         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2219                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2220                 if (!NT_STATUS_IS_OK(status)) {
2221                         libnet_unjoin_set_error_string(mem_ctx, r,
2222                                 "failed to disable machine account via rpc: %s",
2223                                 get_friendly_nt_error_msg(status));
2224                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2225                                 return WERR_SETUP_NOT_JOINED;
2226                         }
2227                         return ntstatus_to_werror(status);
2228                 }
2229
2230                 r->out.disabled_machine_account = true;
2231         }
2232
2233         /* If disable succeeded or was not requested at all, we
2234            should be getting rid of our end of things */
2235
2236         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2237
2238         return WERR_OK;
2239 }
2240
2241 /****************************************************************
2242 ****************************************************************/
2243
2244 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2245                                            struct libnet_UnjoinCtx *r)
2246 {
2247         if (!r->in.domain_name) {
2248                 libnet_unjoin_set_error_string(mem_ctx, r,
2249                         "No domain name defined");
2250                 return WERR_INVALID_PARAM;
2251         }
2252
2253         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2254                                     &r->in.domain_name,
2255                                     &r->in.dc_name)) {
2256                 libnet_unjoin_set_error_string(mem_ctx, r,
2257                         "Failed to parse domain name");
2258                 return WERR_INVALID_PARAM;
2259         }
2260
2261         if (IS_DC) {
2262                 return WERR_SETUP_DOMAIN_CONTROLLER;
2263         }
2264
2265         if (!secrets_init()) {
2266                 libnet_unjoin_set_error_string(mem_ctx, r,
2267                         "Unable to open secrets database");
2268                 return WERR_CAN_NOT_COMPLETE;
2269         }
2270
2271         return WERR_OK;
2272 }
2273
2274 /****************************************************************
2275 ****************************************************************/
2276
2277 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2278                                             struct libnet_UnjoinCtx *r)
2279 {
2280         saf_delete(r->out.netbios_domain_name);
2281         saf_delete(r->out.dns_domain_name);
2282
2283         return libnet_unjoin_config(r);
2284 }
2285
2286 /****************************************************************
2287 ****************************************************************/
2288
2289 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2290                      struct libnet_UnjoinCtx *r)
2291 {
2292         WERROR werr;
2293
2294         if (r->in.debug) {
2295                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2296         }
2297
2298         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2299         if (!W_ERROR_IS_OK(werr)) {
2300                 goto done;
2301         }
2302
2303         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2304                 werr = libnet_DomainUnjoin(mem_ctx, r);
2305                 if (!W_ERROR_IS_OK(werr)) {
2306                         libnet_unjoin_config(r);
2307                         goto done;
2308                 }
2309         }
2310
2311         werr = libnet_unjoin_post_processing(mem_ctx, r);
2312         if (!W_ERROR_IS_OK(werr)) {
2313                 goto done;
2314         }
2315
2316  done:
2317         r->out.result = werr;
2318
2319         if (r->in.debug) {
2320                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2321         }
2322
2323         return werr;
2324 }