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 #include "libsmb/libsmb.h"
  42
  43 /****************************************************************
  44 ****************************************************************/
  45
  46 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  47         do { \
  48                 char *str = NULL; \
  49                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  50                 DEBUG(1,("libnet_Join:\n%s", str)); \
  51                 TALLOC_FREE(str); \
  52         } while (0)
  53
  54 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  55         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  56 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  57         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  58
  59 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  60         do { \
  61                 char *str = NULL; \
  62                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  63                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  64                 TALLOC_FREE(str); \
  65         } while (0)
  66
  67 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  68         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  69 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  70         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  71
  72 /****************************************************************
  73 ****************************************************************/
  74
  75 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  76                                          struct libnet_JoinCtx *r,
  77                                          const char *format, ...)
  78 {
  79         va_list args;
  80
  81         if (r->out.error_string) {
  82                 return;
  83         }
  84
  85         va_start(args, format);
  86         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  87         va_end(args);
  88 }
  89
  90 /****************************************************************
  91 ****************************************************************/
  92
  93 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  94                                            struct libnet_UnjoinCtx *r,
  95                                            const char *format, ...)
  96 {
  97         va_list args;
  98
  99         if (r->out.error_string) {
 100                 return;
 101         }
 102
 103         va_start(args, format);
 104         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
 105         va_end(args);
 106 }
 107
 108 #ifdef HAVE_ADS
 109
 110 /****************************************************************
 111 ****************************************************************/
 112
 113 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 114                                      const char *netbios_domain_name,
 115                                      const char *dc_name,
 116                                      const char *user_name,
 117                                      const char *password,
 118                                      ADS_STRUCT **ads)
 119 {
 120         ADS_STATUS status;
 121         ADS_STRUCT *my_ads = NULL;
 122         char *cp;
 123
 124         my_ads = ads_init(dns_domain_name,
 125                           netbios_domain_name,
 126                           dc_name);
 127         if (!my_ads) {
 128                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 129         }
 130
 131         if (user_name) {
 132                 SAFE_FREE(my_ads->auth.user_name);
 133                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 134                 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
 135                         *cp++ = '\0';
 136                         SAFE_FREE(my_ads->auth.realm);
 137                         my_ads->auth.realm = smb_xstrdup(cp);
 138                         strupper_m(my_ads->auth.realm);
 139                 }
 140         }
 141
 142         if (password) {
 143                 SAFE_FREE(my_ads->auth.password);
 144                 my_ads->auth.password = SMB_STRDUP(password);
 145         }
 146
 147         status = ads_connect_user_creds(my_ads);
 148         if (!ADS_ERR_OK(status)) {
 149                 ads_destroy(&my_ads);
 150                 return status;
 151         }
 152
 153         *ads = my_ads;
 154         return ADS_SUCCESS;
 155 }
 156
 157 /****************************************************************
 158 ****************************************************************/
 159
 160 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 161                                           struct libnet_JoinCtx *r)
 162 {
 163         ADS_STATUS status;
 164
 165         status = libnet_connect_ads(r->out.dns_domain_name,
 166                                     r->out.netbios_domain_name,
 167                                     r->in.dc_name,
 168                                     r->in.admin_account,
 169                                     r->in.admin_password,
 170                                     &r->in.ads);
 171         if (!ADS_ERR_OK(status)) {
 172                 libnet_join_set_error_string(mem_ctx, r,
 173                         "failed to connect to AD: %s",
 174                         ads_errstr(status));
 175                 return status;
 176         }
 177
 178         if (!r->out.netbios_domain_name) {
 179                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 180                                                            r->in.ads->server.workgroup);
 181                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 182         }
 183
 184         if (!r->out.dns_domain_name) {
 185                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 186                                                        r->in.ads->config.realm);
 187                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 188         }
 189
 190         r->out.domain_is_ad = true;
 191
 192         return ADS_SUCCESS;
 193 }
 194
 195 /****************************************************************
 196 ****************************************************************/
 197
 198 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 199                                             struct libnet_UnjoinCtx *r)
 200 {
 201         ADS_STATUS status;
 202
 203         status = libnet_connect_ads(r->in.domain_name,
 204                                     r->in.domain_name,
 205                                     r->in.dc_name,
 206                                     r->in.admin_account,
 207                                     r->in.admin_password,
 208                                     &r->in.ads);
 209         if (!ADS_ERR_OK(status)) {
 210                 libnet_unjoin_set_error_string(mem_ctx, r,
 211                         "failed to connect to AD: %s",
 212                         ads_errstr(status));
 213         }
 214
 215         return status;
 216 }
 217
 218 /****************************************************************
 219  join a domain using ADS (LDAP mods)
 220 ****************************************************************/
 221
 222 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 223                                                      struct libnet_JoinCtx *r)
 224 {
 225         ADS_STATUS status;
 226         LDAPMessage *res = NULL;
 227         const char *attrs[] = { "dn", NULL };
 228         bool moved = false;
 229
 230         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 231         if (!ADS_ERR_OK(status)) {
 232                 return status;
 233         }
 234
 235         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 236         if (!ADS_ERR_OK(status)) {
 237                 return status;
 238         }
 239
 240         if (ads_count_replies(r->in.ads, res) != 1) {
 241                 ads_msgfree(r->in.ads, res);
 242                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 243         }
 244
 245         ads_msgfree(r->in.ads, res);
 246
 247         /* Attempt to create the machine account and bail if this fails.
 248            Assume that the admin wants exactly what they requested */
 249
 250         status = ads_create_machine_acct(r->in.ads,
 251                                          r->in.machine_name,
 252                                          r->in.account_ou);
 253
 254         if (ADS_ERR_OK(status)) {
 255                 DEBUG(1,("machine account creation created\n"));
 256                 return status;
 257         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 258                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 259                 status = ADS_SUCCESS;
 260         }
 261
 262         if (!ADS_ERR_OK(status)) {
 263                 DEBUG(1,("machine account creation failed\n"));
 264                 return status;
 265         }
 266
 267         status = ads_move_machine_acct(r->in.ads,
 268                                        r->in.machine_name,
 269                                        r->in.account_ou,
 270                                        &moved);
 271         if (!ADS_ERR_OK(status)) {
 272                 DEBUG(1,("failure to locate/move pre-existing "
 273                         "machine account\n"));
 274                 return status;
 275         }
 276
 277         DEBUG(1,("The machine account %s the specified OU.\n",
 278                 moved ? "was moved into" : "already exists in"));
 279
 280         return status;
 281 }
 282
 283 /****************************************************************
 284 ****************************************************************/
 285
 286 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 287                                                     struct libnet_UnjoinCtx *r)
 288 {
 289         ADS_STATUS status;
 290
 291         if (!r->in.ads) {
 292                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 293                 if (!ADS_ERR_OK(status)) {
 294                         libnet_unjoin_set_error_string(mem_ctx, r,
 295                                 "failed to connect to AD: %s",
 296                                 ads_errstr(status));
 297                         return status;
 298                 }
 299         }
 300
 301         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 302         if (!ADS_ERR_OK(status)) {
 303                 libnet_unjoin_set_error_string(mem_ctx, r,
 304                         "failed to leave realm: %s",
 305                         ads_errstr(status));
 306                 return status;
 307         }
 308
 309         return ADS_SUCCESS;
 310 }
 311
 312 /****************************************************************
 313 ****************************************************************/
 314
 315 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 316                                                 struct libnet_JoinCtx *r)
 317 {
 318         ADS_STATUS status;
 319         LDAPMessage *res = NULL;
 320         char *dn = NULL;
 321
 322         if (!r->in.machine_name) {
 323                 return ADS_ERROR(LDAP_NO_MEMORY);
 324         }
 325
 326         status = ads_find_machine_acct(r->in.ads,
 327                                        &res,
 328                                        r->in.machine_name);
 329         if (!ADS_ERR_OK(status)) {
 330                 return status;
 331         }
 332
 333         if (ads_count_replies(r->in.ads, res) != 1) {
 334                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 335                 goto done;
 336         }
 337
 338         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 339         if (!dn) {
 340                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 341                 goto done;
 342         }
 343
 344         r->out.dn = talloc_strdup(mem_ctx, dn);
 345         if (!r->out.dn) {
 346                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 347                 goto done;
 348         }
 349
 350  done:
 351         ads_msgfree(r->in.ads, res);
 352         TALLOC_FREE(dn);
 353
 354         return status;
 355 }
 356
 357 /****************************************************************
 358  Set a machines dNSHostName and servicePrincipalName attributes
 359 ****************************************************************/
 360
 361 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 362                                               struct libnet_JoinCtx *r)
 363 {
 364         ADS_STATUS status;
 365         ADS_MODLIST mods;
 366         fstring my_fqdn;
 367         const char *spn_array[3] = {NULL, NULL, NULL};
 368         char *spn = NULL;
 369
 370         /* Find our DN */
 371
 372         status = libnet_join_find_machine_acct(mem_ctx, r);
 373         if (!ADS_ERR_OK(status)) {
 374                 return status;
 375         }
 376
 377         /* Windows only creates HOST/shortname & HOST/fqdn. */
 378
 379         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 380         if (!spn) {
 381                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 382         }
 383         strupper_m(spn);
 384         spn_array[0] = spn;
 385
 386         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 387             || (strchr(my_fqdn, '.') == NULL)) {
 388                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 389                              r->out.dns_domain_name);
 390         }
 391
 392         strlower_m(my_fqdn);
 393
 394         if (!strequal(my_fqdn, r->in.machine_name)) {
 395                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 396                 if (!spn) {
 397                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 398                 }
 399                 spn_array[1] = spn;
 400         }
 401
 402         mods = ads_init_mods(mem_ctx);
 403         if (!mods) {
 404                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 405         }
 406
 407         /* fields of primary importance */
 408
 409         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 410         if (!ADS_ERR_OK(status)) {
 411                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 412         }
 413
 414         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 415                                  spn_array);
 416         if (!ADS_ERR_OK(status)) {
 417                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 418         }
 419
 420         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 421 }
 422
 423 /****************************************************************
 424 ****************************************************************/
 425
 426 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 427                                               struct libnet_JoinCtx *r)
 428 {
 429         ADS_STATUS status;
 430         ADS_MODLIST mods;
 431
 432         if (!r->in.create_upn) {
 433                 return ADS_SUCCESS;
 434         }
 435
 436         /* Find our DN */
 437
 438         status = libnet_join_find_machine_acct(mem_ctx, r);
 439         if (!ADS_ERR_OK(status)) {
 440                 return status;
 441         }
 442
 443         if (!r->in.upn) {
 444                 r->in.upn = talloc_asprintf(mem_ctx,
 445                                             "host/%s@%s",
 446                                             r->in.machine_name,
 447                                             r->out.dns_domain_name);
 448                 if (!r->in.upn) {
 449                         return ADS_ERROR(LDAP_NO_MEMORY);
 450                 }
 451         }
 452
 453         /* now do the mods */
 454
 455         mods = ads_init_mods(mem_ctx);
 456         if (!mods) {
 457                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 458         }
 459
 460         /* fields of primary importance */
 461
 462         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 463         if (!ADS_ERR_OK(status)) {
 464                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 465         }
 466
 467         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 468 }
 469
 470
 471 /****************************************************************
 472 ****************************************************************/
 473
 474 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 475                                                 struct libnet_JoinCtx *r)
 476 {
 477         ADS_STATUS status;
 478         ADS_MODLIST mods;
 479         char *os_sp = NULL;
 480
 481         if (!r->in.os_name || !r->in.os_version ) {
 482                 return ADS_SUCCESS;
 483         }
 484
 485         /* Find our DN */
 486
 487         status = libnet_join_find_machine_acct(mem_ctx, r);
 488         if (!ADS_ERR_OK(status)) {
 489                 return status;
 490         }
 491
 492         /* now do the mods */
 493
 494         mods = ads_init_mods(mem_ctx);
 495         if (!mods) {
 496                 return ADS_ERROR(LDAP_NO_MEMORY);
 497         }
 498
 499         os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
 500         if (!os_sp) {
 501                 return ADS_ERROR(LDAP_NO_MEMORY);
 502         }
 503
 504         /* fields of primary importance */
 505
 506         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 507                              r->in.os_name);
 508         if (!ADS_ERR_OK(status)) {
 509                 return status;
 510         }
 511
 512         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 513                              r->in.os_version);
 514         if (!ADS_ERR_OK(status)) {
 515                 return status;
 516         }
 517
 518         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 519                              os_sp);
 520         if (!ADS_ERR_OK(status)) {
 521                 return status;
 522         }
 523
 524         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 525 }
 526
 527 /****************************************************************
 528 ****************************************************************/
 529
 530 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 531                                       struct libnet_JoinCtx *r)
 532 {
 533         if (!USE_SYSTEM_KEYTAB) {
 534                 return true;
 535         }
 536
 537         if (ads_keytab_create_default(r->in.ads) != 0) {
 538                 return false;
 539         }
 540
 541         return true;
 542 }
 543
 544 /****************************************************************
 545 ****************************************************************/
 546
 547 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 548                                                  struct libnet_JoinCtx *r)
 549 {
 550         uint32_t domain_func;
 551         ADS_STATUS status;
 552         const char *salt = NULL;
 553         char *std_salt = NULL;
 554
 555         status = ads_domain_func_level(r->in.ads, &domain_func);
 556         if (!ADS_ERR_OK(status)) {
 557                 libnet_join_set_error_string(mem_ctx, r,
 558                         "failed to determine domain functional level: %s",
 559                         ads_errstr(status));
 560                 return false;
 561         }
 562
 563         /* go ahead and setup the default salt */
 564
 565         std_salt = kerberos_standard_des_salt();
 566         if (!std_salt) {
 567                 libnet_join_set_error_string(mem_ctx, r,
 568                         "failed to obtain standard DES salt");
 569                 return false;
 570         }
 571
 572         salt = talloc_strdup(mem_ctx, std_salt);
 573         if (!salt) {
 574                 return false;
 575         }
 576
 577         SAFE_FREE(std_salt);
 578
 579         /* if it's a Windows functional domain, we have to look for the UPN */
 580
 581         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 582                 char *upn;
 583
 584                 upn = ads_get_upn(r->in.ads, mem_ctx,
 585                                   r->in.machine_name);
 586                 if (upn) {
 587                         salt = talloc_strdup(mem_ctx, upn);
 588                         if (!salt) {
 589                                 return false;
 590                         }
 591                 }
 592         }
 593
 594         return kerberos_secrets_store_des_salt(salt);
 595 }
 596
 597 /****************************************************************
 598 ****************************************************************/
 599
 600 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 601                                                   struct libnet_JoinCtx *r)
 602 {
 603         ADS_STATUS status;
 604
 605         if (!r->in.ads) {
 606                 status = libnet_join_connect_ads(mem_ctx, r);
 607                 if (!ADS_ERR_OK(status)) {
 608                         return status;
 609                 }
 610         }
 611
 612         status = libnet_join_set_machine_spn(mem_ctx, r);
 613         if (!ADS_ERR_OK(status)) {
 614                 libnet_join_set_error_string(mem_ctx, r,
 615                         "failed to set machine spn: %s",
 616                         ads_errstr(status));
 617                 return status;
 618         }
 619
 620         status = libnet_join_set_os_attributes(mem_ctx, r);
 621         if (!ADS_ERR_OK(status)) {
 622                 libnet_join_set_error_string(mem_ctx, r,
 623                         "failed to set machine os attributes: %s",
 624                         ads_errstr(status));
 625                 return status;
 626         }
 627
 628         status = libnet_join_set_machine_upn(mem_ctx, r);
 629         if (!ADS_ERR_OK(status)) {
 630                 libnet_join_set_error_string(mem_ctx, r,
 631                         "failed to set machine upn: %s",
 632                         ads_errstr(status));
 633                 return status;
 634         }
 635
 636         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 637                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 638         }
 639
 640         if (!libnet_join_create_keytab(mem_ctx, r)) {
 641                 libnet_join_set_error_string(mem_ctx, r,
 642                         "failed to create kerberos keytab");
 643                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 644         }
 645
 646         return ADS_SUCCESS;
 647 }
 648 #endif /* HAVE_ADS */
 649
 650 /****************************************************************
 651  Store the machine password and domain SID
 652 ****************************************************************/
 653
 654 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 655                                                  struct libnet_JoinCtx *r)
 656 {
 657         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 658                                       r->out.domain_sid))
 659         {
 660                 DEBUG(1,("Failed to save domain sid\n"));
 661                 return false;
 662         }
 663
 664         if (!secrets_store_machine_password(r->in.machine_password,
 665                                             r->out.netbios_domain_name,
 666                                             r->in.secure_channel_type))
 667         {
 668                 DEBUG(1,("Failed to save machine password\n"));
 669                 return false;
 670         }
 671
 672         return true;
 673 }
 674
 675 /****************************************************************
 676  Connect dc's IPC$ share
 677 ****************************************************************/
 678
 679 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 680                                            const char *user,
 681                                            const char *pass,
 682                                            bool use_kerberos,
 683                                            struct cli_state **cli)
 684 {
 685         int flags = 0;
 686
 687         if (use_kerberos) {
 688                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 689         }
 690
 691         if (use_kerberos && pass) {
 692                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 693         }
 694
 695         return cli_full_connection(cli, NULL,
 696                                    dc,
 697                                    NULL, 0,
 698                                    "IPC$", "IPC",
 699                                    user,
 700                                    NULL,
 701                                    pass,
 702                                    flags,
 703                                    Undefined);
 704 }
 705
 706 /****************************************************************
 707  Lookup domain dc's info
 708 ****************************************************************/
 709
 710 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 711                                           struct libnet_JoinCtx *r,
 712                                           struct cli_state **cli)
 713 {
 714         struct rpc_pipe_client *pipe_hnd = NULL;
 715         struct policy_handle lsa_pol;
 716         NTSTATUS status, result;
 717         union lsa_PolicyInformation *info = NULL;
 718         struct dcerpc_binding_handle *b;
 719
 720         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 721                                             r->in.admin_account,
 722                                             r->in.admin_password,
 723                                             r->in.use_kerberos,
 724                                             cli);
 725         if (!NT_STATUS_IS_OK(status)) {
 726                 goto done;
 727         }
 728
 729         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
 730                                           &pipe_hnd);
 731         if (!NT_STATUS_IS_OK(status)) {
 732                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 733                         nt_errstr(status)));
 734                 goto done;
 735         }
 736
 737         b = pipe_hnd->binding_handle;
 738
 739         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 740                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 741         if (!NT_STATUS_IS_OK(status)) {
 742                 goto done;
 743         }
 744
 745         status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
 746                                              &lsa_pol,
 747                                              LSA_POLICY_INFO_DNS,
 748                                              &info,
 749                                              &result);
 750         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
 751                 r->out.domain_is_ad = true;
 752                 r->out.netbios_domain_name = info->dns.name.string;
 753                 r->out.dns_domain_name = info->dns.dns_domain.string;
 754                 r->out.forest_name = info->dns.dns_forest.string;
 755                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
 756                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 757         }
 758
 759         if (!NT_STATUS_IS_OK(status)) {
 760                 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
 761                                                     &lsa_pol,
 762                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 763                                                     &info,
 764                                                     &result);
 765                 if (!NT_STATUS_IS_OK(status)) {
 766                         goto done;
 767                 }
 768                 if (!NT_STATUS_IS_OK(result)) {
 769                         status = result;
 770                         goto done;
 771                 }
 772
 773                 r->out.netbios_domain_name = info->account_domain.name.string;
 774                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
 775                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 776         }
 777
 778         dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
 779         TALLOC_FREE(pipe_hnd);
 780
 781  done:
 782         return status;
 783 }
 784
 785 /****************************************************************
 786  Do the domain join unsecure
 787 ****************************************************************/
 788
 789 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 790                                                     struct libnet_JoinCtx *r,
 791                                                     struct cli_state *cli)
 792 {
 793         struct rpc_pipe_client *pipe_hnd = NULL;
 794         unsigned char orig_trust_passwd_hash[16];
 795         unsigned char new_trust_passwd_hash[16];
 796         fstring trust_passwd;
 797         NTSTATUS status;
 798
 799         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
 800                                           &pipe_hnd);
 801         if (!NT_STATUS_IS_OK(status)) {
 802                 return status;
 803         }
 804
 805         if (!r->in.machine_password) {
 806                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 807                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 808         }
 809
 810         E_md4hash(r->in.machine_password, new_trust_passwd_hash);
 811
 812         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 813         fstrcpy(trust_passwd, r->in.admin_password);
 814         strlower_m(trust_passwd);
 815
 816         /*
 817          * Machine names can be 15 characters, but the max length on
 818          * a password is 14.  --jerry
 819          */
 820
 821         trust_passwd[14] = '\0';
 822
 823         E_md4hash(trust_passwd, orig_trust_passwd_hash);
 824
 825         status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
 826                                                     r->in.machine_name,
 827                                                     orig_trust_passwd_hash,
 828                                                     r->in.machine_password,
 829                                                     new_trust_passwd_hash,
 830                                                     r->in.secure_channel_type);
 831
 832         return status;
 833 }
 834
 835 /****************************************************************
 836  Do the domain join
 837 ****************************************************************/
 838
 839 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 840                                            struct libnet_JoinCtx *r,
 841                                            struct cli_state *cli)
 842 {
 843         struct rpc_pipe_client *pipe_hnd = NULL;
 844         struct policy_handle sam_pol, domain_pol, user_pol;
 845         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
 846         char *acct_name;
 847         struct lsa_String lsa_acct_name;
 848         uint32_t user_rid;
 849         uint32_t acct_flags = ACB_WSTRUST;
 850         struct samr_Ids user_rids;
 851         struct samr_Ids name_types;
 852         union samr_UserInfo user_info;
 853         struct dcerpc_binding_handle *b = NULL;
 854
 855         struct samr_CryptPassword crypt_pwd;
 856         struct samr_CryptPasswordEx crypt_pwd_ex;
 857
 858         ZERO_STRUCT(sam_pol);
 859         ZERO_STRUCT(domain_pol);
 860         ZERO_STRUCT(user_pol);
 861
 862         switch (r->in.secure_channel_type) {
 863         case SEC_CHAN_WKSTA:
 864                 acct_flags = ACB_WSTRUST;
 865                 break;
 866         case SEC_CHAN_BDC:
 867                 acct_flags = ACB_SVRTRUST;
 868                 break;
 869         default:
 870                 return NT_STATUS_INVALID_PARAMETER;
 871         }
 872
 873         if (!r->in.machine_password) {
 874                 r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 875                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 876         }
 877
 878         /* Open the domain */
 879
 880         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
 881                                           &pipe_hnd);
 882         if (!NT_STATUS_IS_OK(status)) {
 883                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 884                         nt_errstr(status)));
 885                 goto done;
 886         }
 887
 888         b = pipe_hnd->binding_handle;
 889
 890         status = dcerpc_samr_Connect2(b, mem_ctx,
 891                                       pipe_hnd->desthost,
 892                                       SAMR_ACCESS_ENUM_DOMAINS
 893                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
 894                                       &sam_pol,
 895                                       &result);
 896         if (!NT_STATUS_IS_OK(status)) {
 897                 goto done;
 898         }
 899         if (!NT_STATUS_IS_OK(result)) {
 900                 status = result;
 901                 goto done;
 902         }
 903
 904         status = dcerpc_samr_OpenDomain(b, mem_ctx,
 905                                         &sam_pol,
 906                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
 907                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
 908                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 909                                         r->out.domain_sid,
 910                                         &domain_pol,
 911                                         &result);
 912         if (!NT_STATUS_IS_OK(status)) {
 913                 goto done;
 914         }
 915         if (!NT_STATUS_IS_OK(result)) {
 916                 status = result;
 917                 goto done;
 918         }
 919
 920         /* Create domain user */
 921
 922         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 923         strlower_m(acct_name);
 924
 925         init_lsa_String(&lsa_acct_name, acct_name);
 926
 927         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 928                 uint32_t access_desired =
 929                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 930                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 931                         SAMR_USER_ACCESS_SET_PASSWORD |
 932                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 933                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 934                 uint32_t access_granted = 0;
 935
 936                 DEBUG(10,("Creating account with desired access mask: %d\n",
 937                         access_desired));
 938
 939                 status = dcerpc_samr_CreateUser2(b, mem_ctx,
 940                                                  &domain_pol,
 941                                                  &lsa_acct_name,
 942                                                  acct_flags,
 943                                                  access_desired,
 944                                                  &user_pol,
 945                                                  &access_granted,
 946                                                  &user_rid,
 947                                                  &result);
 948                 if (!NT_STATUS_IS_OK(status)) {
 949                         goto done;
 950                 }
 951
 952                 status = result;
 953                 if (!NT_STATUS_IS_OK(status) &&
 954                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 955
 956                         DEBUG(10,("Creation of workstation account failed: %s\n",
 957                                 nt_errstr(status)));
 958
 959                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 960                            username/password combo but the user does not have
 961                            administrator access. */
 962
 963                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 964                                 libnet_join_set_error_string(mem_ctx, r,
 965                                         "User specified does not have "
 966                                         "administrator privileges");
 967                         }
 968
 969                         goto done;
 970                 }
 971
 972                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 973                         if (!(r->in.join_flags &
 974                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 975                                 goto done;
 976                         }
 977                 }
 978
 979                 /* We *must* do this.... don't ask... */
 980
 981                 if (NT_STATUS_IS_OK(status)) {
 982                         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
 983                 }
 984         }
 985
 986         status = dcerpc_samr_LookupNames(b, mem_ctx,
 987                                          &domain_pol,
 988                                          1,
 989                                          &lsa_acct_name,
 990                                          &user_rids,
 991                                          &name_types,
 992                                          &result);
 993         if (!NT_STATUS_IS_OK(status)) {
 994                 goto done;
 995         }
 996         if (!NT_STATUS_IS_OK(result)) {
 997                 status = result;
 998                 goto done;
 999         }
1000
1001         if (name_types.ids[0] != SID_NAME_USER) {
1002                 DEBUG(0,("%s is not a user account (type=%d)\n",
1003                         acct_name, name_types.ids[0]));
1004                 status = NT_STATUS_INVALID_WORKSTATION;
1005                 goto done;
1006         }
1007
1008         user_rid = user_rids.ids[0];
1009
1010         /* Open handle on user */
1011
1012         status = dcerpc_samr_OpenUser(b, mem_ctx,
1013                                       &domain_pol,
1014                                       SEC_FLAG_MAXIMUM_ALLOWED,
1015                                       user_rid,
1016                                       &user_pol,
1017                                       &result);
1018         if (!NT_STATUS_IS_OK(status)) {
1019                 goto done;
1020         }
1021         if (!NT_STATUS_IS_OK(result)) {
1022                 status = result;
1023                 goto done;
1024         }
1025
1026         /* Fill in the additional account flags now */
1027
1028         acct_flags |= ACB_PWNOEXP;
1029
1030         /* Set account flags on machine account */
1031         ZERO_STRUCT(user_info.info16);
1032         user_info.info16.acct_flags = acct_flags;
1033
1034         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1035                                          &user_pol,
1036                                          16,
1037                                          &user_info,
1038                                          &result);
1039         if (!NT_STATUS_IS_OK(status)) {
1040                 dcerpc_samr_DeleteUser(b, mem_ctx,
1041                                        &user_pol,
1042                                        &result);
1043
1044                 libnet_join_set_error_string(mem_ctx, r,
1045                         "Failed to set account flags for machine account (%s)\n",
1046                         nt_errstr(status));
1047                 goto done;
1048         }
1049
1050         if (!NT_STATUS_IS_OK(result)) {
1051                 status = result;
1052
1053                 dcerpc_samr_DeleteUser(b, mem_ctx,
1054                                        &user_pol,
1055                                        &result);
1056
1057                 libnet_join_set_error_string(mem_ctx, r,
1058                         "Failed to set account flags for machine account (%s)\n",
1059                         nt_errstr(status));
1060                 goto done;
1061         }
1062
1063         /* Set password on machine account - first try level 26 */
1064
1065         init_samr_CryptPasswordEx(r->in.machine_password,
1066                                   &cli->user_session_key,
1067                                   &crypt_pwd_ex);
1068
1069         user_info.info26.password = crypt_pwd_ex;
1070         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1071
1072         status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1073                                           &user_pol,
1074                                           26,
1075                                           &user_info,
1076                                           &result);
1077
1078         if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1079
1080                 /* retry with level 24 */
1081
1082                 init_samr_CryptPassword(r->in.machine_password,
1083                                         &cli->user_session_key,
1084                                         &crypt_pwd);
1085
1086                 user_info.info24.password = crypt_pwd;
1087                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1088
1089                 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1090                                                   &user_pol,
1091                                                   24,
1092                                                   &user_info,
1093                                                   &result);
1094         }
1095
1096         if (!NT_STATUS_IS_OK(status)) {
1097
1098                 dcerpc_samr_DeleteUser(b, mem_ctx,
1099                                        &user_pol,
1100                                        &result);
1101
1102                 libnet_join_set_error_string(mem_ctx, r,
1103                         "Failed to set password for machine account (%s)\n",
1104                         nt_errstr(status));
1105                 goto done;
1106         }
1107         if (!NT_STATUS_IS_OK(result)) {
1108                 status = result;
1109
1110                 dcerpc_samr_DeleteUser(b, mem_ctx,
1111                                        &user_pol,
1112                                        &result);
1113
1114                 libnet_join_set_error_string(mem_ctx, r,
1115                         "Failed to set password for machine account (%s)\n",
1116                         nt_errstr(status));
1117                 goto done;
1118         }
1119
1120         status = NT_STATUS_OK;
1121
1122  done:
1123         if (!pipe_hnd) {
1124                 return status;
1125         }
1126
1127         if (is_valid_policy_hnd(&sam_pol)) {
1128                 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1129         }
1130         if (is_valid_policy_hnd(&domain_pol)) {
1131                 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1132         }
1133         if (is_valid_policy_hnd(&user_pol)) {
1134                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1135         }
1136         TALLOC_FREE(pipe_hnd);
1137
1138         return status;
1139 }
1140
1141 /****************************************************************
1142 ****************************************************************/
1143
1144 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
1145                         const char *machine_name,
1146                         const char *dc_name)
1147 {
1148         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
1149         struct cli_state *cli = NULL;
1150         struct rpc_pipe_client *pipe_hnd = NULL;
1151         struct rpc_pipe_client *netlogon_pipe = NULL;
1152         NTSTATUS status;
1153         char *machine_password = NULL;
1154         char *machine_account = NULL;
1155
1156         if (!dc_name) {
1157                 return NT_STATUS_INVALID_PARAMETER;
1158         }
1159
1160         if (!secrets_init()) {
1161                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1162         }
1163
1164         machine_password = secrets_fetch_machine_password(netbios_domain_name,
1165                                                           NULL, NULL);
1166         if (!machine_password) {
1167                 return NT_STATUS_NO_TRUST_LSA_SECRET;
1168         }
1169
1170         if (asprintf(&machine_account, "%s$", machine_name) == -1) {
1171                 SAFE_FREE(machine_password);
1172                 return NT_STATUS_NO_MEMORY;
1173         }
1174
1175         status = cli_full_connection(&cli, NULL,
1176                                      dc_name,
1177                                      NULL, 0,
1178                                      "IPC$", "IPC",
1179                                      machine_account,
1180                                      NULL,
1181                                      machine_password,
1182                                      0,
1183                                      Undefined);
1184         free(machine_account);
1185         free(machine_password);
1186
1187         if (!NT_STATUS_IS_OK(status)) {
1188                 status = cli_full_connection(&cli, NULL,
1189                                              dc_name,
1190                                              NULL, 0,
1191                                              "IPC$", "IPC",
1192                                              "",
1193                                              NULL,
1194                                              "",
1195                                              0,
1196                                              Undefined);
1197         }
1198
1199         if (!NT_STATUS_IS_OK(status)) {
1200                 return status;
1201         }
1202
1203         status = get_schannel_session_key(cli, netbios_domain_name,
1204                                           &neg_flags, &netlogon_pipe);
1205         if (!NT_STATUS_IS_OK(status)) {
1206                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
1207                         cli_shutdown(cli);
1208                         return NT_STATUS_OK;
1209                 }
1210
1211                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1212                         "key from server %s for domain %s. Error was %s\n",
1213                         cli_state_remote_name(cli),
1214                         netbios_domain_name, nt_errstr(status)));
1215                 cli_shutdown(cli);
1216                 return status;
1217         }
1218
1219         if (!lp_client_schannel()) {
1220                 cli_shutdown(cli);
1221                 return NT_STATUS_OK;
1222         }
1223
1224         status = cli_rpc_pipe_open_schannel_with_key(
1225                 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1226                 DCERPC_AUTH_LEVEL_PRIVACY,
1227                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1228
1229         cli_shutdown(cli);
1230
1231         if (!NT_STATUS_IS_OK(status)) {
1232                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1233                         "on netlogon pipe to server %s for domain %s. "
1234                         "Error was %s\n",
1235                         cli_state_remote_name(cli),
1236                         netbios_domain_name, nt_errstr(status)));
1237                 return status;
1238         }
1239
1240         return NT_STATUS_OK;
1241 }
1242
1243 /****************************************************************
1244 ****************************************************************/
1245
1246 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1247                                       struct libnet_JoinCtx *r)
1248 {
1249         NTSTATUS status;
1250
1251         status = libnet_join_ok(r->out.netbios_domain_name,
1252                                 r->in.machine_name,
1253                                 r->in.dc_name);
1254         if (!NT_STATUS_IS_OK(status)) {
1255                 libnet_join_set_error_string(mem_ctx, r,
1256                         "failed to verify domain membership after joining: %s",
1257                         get_friendly_nt_error_msg(status));
1258                 return WERR_SETUP_NOT_JOINED;
1259         }
1260
1261         return WERR_OK;
1262 }
1263
1264 /****************************************************************
1265 ****************************************************************/
1266
1267 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1268                                                     struct libnet_UnjoinCtx *r)
1269 {
1270         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1271                 return false;
1272         }
1273
1274         if (!secrets_delete_domain_sid(lp_workgroup())) {
1275                 return false;
1276         }
1277
1278         return true;
1279 }
1280
1281 /****************************************************************
1282 ****************************************************************/
1283
1284 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1285                                              struct libnet_UnjoinCtx *r)
1286 {
1287         struct cli_state *cli = NULL;
1288         struct rpc_pipe_client *pipe_hnd = NULL;
1289         struct policy_handle sam_pol, domain_pol, user_pol;
1290         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1291         char *acct_name;
1292         uint32_t user_rid;
1293         struct lsa_String lsa_acct_name;
1294         struct samr_Ids user_rids;
1295         struct samr_Ids name_types;
1296         union samr_UserInfo *info = NULL;
1297         struct dcerpc_binding_handle *b = NULL;
1298
1299         ZERO_STRUCT(sam_pol);
1300         ZERO_STRUCT(domain_pol);
1301         ZERO_STRUCT(user_pol);
1302
1303         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1304                                             r->in.admin_account,
1305                                             r->in.admin_password,
1306                                             r->in.use_kerberos,
1307                                             &cli);
1308         if (!NT_STATUS_IS_OK(status)) {
1309                 goto done;
1310         }
1311
1312         /* Open the domain */
1313
1314         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1315                                           &pipe_hnd);
1316         if (!NT_STATUS_IS_OK(status)) {
1317                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1318                         nt_errstr(status)));
1319                 goto done;
1320         }
1321
1322         b = pipe_hnd->binding_handle;
1323
1324         status = dcerpc_samr_Connect2(b, mem_ctx,
1325                                       pipe_hnd->desthost,
1326                                       SEC_FLAG_MAXIMUM_ALLOWED,
1327                                       &sam_pol,
1328                                       &result);
1329         if (!NT_STATUS_IS_OK(status)) {
1330                 goto done;
1331         }
1332         if (!NT_STATUS_IS_OK(result)) {
1333                 status = result;
1334                 goto done;
1335         }
1336
1337         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1338                                         &sam_pol,
1339                                         SEC_FLAG_MAXIMUM_ALLOWED,
1340                                         r->in.domain_sid,
1341                                         &domain_pol,
1342                                         &result);
1343         if (!NT_STATUS_IS_OK(status)) {
1344                 goto done;
1345         }
1346         if (!NT_STATUS_IS_OK(result)) {
1347                 status = result;
1348                 goto done;
1349         }
1350
1351         /* Create domain user */
1352
1353         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1354         strlower_m(acct_name);
1355
1356         init_lsa_String(&lsa_acct_name, acct_name);
1357
1358         status = dcerpc_samr_LookupNames(b, mem_ctx,
1359                                          &domain_pol,
1360                                          1,
1361                                          &lsa_acct_name,
1362                                          &user_rids,
1363                                          &name_types,
1364                                          &result);
1365
1366         if (!NT_STATUS_IS_OK(status)) {
1367                 goto done;
1368         }
1369         if (!NT_STATUS_IS_OK(result)) {
1370                 status = result;
1371                 goto done;
1372         }
1373
1374         if (name_types.ids[0] != SID_NAME_USER) {
1375                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1376                         name_types.ids[0]));
1377                 status = NT_STATUS_INVALID_WORKSTATION;
1378                 goto done;
1379         }
1380
1381         user_rid = user_rids.ids[0];
1382
1383         /* Open handle on user */
1384
1385         status = dcerpc_samr_OpenUser(b, mem_ctx,
1386                                       &domain_pol,
1387                                       SEC_FLAG_MAXIMUM_ALLOWED,
1388                                       user_rid,
1389                                       &user_pol,
1390                                       &result);
1391         if (!NT_STATUS_IS_OK(status)) {
1392                 goto done;
1393         }
1394         if (!NT_STATUS_IS_OK(result)) {
1395                 status = result;
1396                 goto done;
1397         }
1398
1399         /* Get user info */
1400
1401         status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1402                                            &user_pol,
1403                                            16,
1404                                            &info,
1405                                            &result);
1406         if (!NT_STATUS_IS_OK(status)) {
1407                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1408                 goto done;
1409         }
1410         if (!NT_STATUS_IS_OK(result)) {
1411                 status = result;
1412                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1413                 goto done;
1414         }
1415
1416         /* now disable and setuser info */
1417
1418         info->info16.acct_flags |= ACB_DISABLED;
1419
1420         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1421                                          &user_pol,
1422                                          16,
1423                                          info,
1424                                          &result);
1425         if (!NT_STATUS_IS_OK(status)) {
1426                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1427                 goto done;
1428         }
1429         if (!NT_STATUS_IS_OK(result)) {
1430                 status = result;
1431                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1432                 goto done;
1433         }
1434         status = result;
1435         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1436
1437 done:
1438         if (pipe_hnd && b) {
1439                 if (is_valid_policy_hnd(&domain_pol)) {
1440                         dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1441                 }
1442                 if (is_valid_policy_hnd(&sam_pol)) {
1443                         dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1444                 }
1445                 TALLOC_FREE(pipe_hnd);
1446         }
1447
1448         if (cli) {
1449                 cli_shutdown(cli);
1450         }
1451
1452         return status;
1453 }
1454
1455 /****************************************************************
1456 ****************************************************************/
1457
1458 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1459 {
1460         WERROR werr = WERR_OK;
1461         sbcErr err;
1462         struct smbconf_ctx *ctx;
1463
1464         err = smbconf_init_reg(r, &ctx, NULL);
1465         if (!SBC_ERROR_IS_OK(err)) {
1466                 werr = WERR_NO_SUCH_SERVICE;
1467                 goto done;
1468         }
1469
1470         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1471
1472                 err = smbconf_set_global_parameter(ctx, "security", "user");
1473                 if (!SBC_ERROR_IS_OK(err)) {
1474                         werr = WERR_NO_SUCH_SERVICE;
1475                         goto done;
1476                 }
1477
1478                 err = smbconf_set_global_parameter(ctx, "workgroup",
1479                                                    r->in.domain_name);
1480                 if (!SBC_ERROR_IS_OK(err)) {
1481                         werr = WERR_NO_SUCH_SERVICE;
1482                         goto done;
1483                 }
1484
1485                 smbconf_delete_global_parameter(ctx, "realm");
1486                 goto done;
1487         }
1488
1489         err = smbconf_set_global_parameter(ctx, "security", "domain");
1490         if (!SBC_ERROR_IS_OK(err)) {
1491                 werr = WERR_NO_SUCH_SERVICE;
1492                 goto done;
1493         }
1494
1495         err = smbconf_set_global_parameter(ctx, "workgroup",
1496                                            r->out.netbios_domain_name);
1497         if (!SBC_ERROR_IS_OK(err)) {
1498                 werr = WERR_NO_SUCH_SERVICE;
1499                 goto done;
1500         }
1501
1502         if (r->out.domain_is_ad) {
1503                 err = smbconf_set_global_parameter(ctx, "security", "ads");
1504                 if (!SBC_ERROR_IS_OK(err)) {
1505                         werr = WERR_NO_SUCH_SERVICE;
1506                         goto done;
1507                 }
1508
1509                 err = smbconf_set_global_parameter(ctx, "realm",
1510                                                    r->out.dns_domain_name);
1511                 if (!SBC_ERROR_IS_OK(err)) {
1512                         werr = WERR_NO_SUCH_SERVICE;
1513                         goto done;
1514                 }
1515         }
1516
1517  done:
1518         smbconf_shutdown(ctx);
1519         return werr;
1520 }
1521
1522 /****************************************************************
1523 ****************************************************************/
1524
1525 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1526 {
1527         WERROR werr = WERR_OK;
1528         sbcErr err;
1529         struct smbconf_ctx *ctx;
1530
1531         err = smbconf_init_reg(r, &ctx, NULL);
1532         if (!SBC_ERROR_IS_OK(err)) {
1533                 werr = WERR_NO_SUCH_SERVICE;
1534                 goto done;
1535         }
1536
1537         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1538
1539                 err = smbconf_set_global_parameter(ctx, "security", "user");
1540                 if (!SBC_ERROR_IS_OK(err)) {
1541                         werr = WERR_NO_SUCH_SERVICE;
1542                         goto done;
1543                 }
1544
1545                 err = smbconf_delete_global_parameter(ctx, "workgroup");
1546                 if (!SBC_ERROR_IS_OK(err)) {
1547                         werr = WERR_NO_SUCH_SERVICE;
1548                         goto done;
1549                 }
1550
1551                 smbconf_delete_global_parameter(ctx, "realm");
1552         }
1553
1554  done:
1555         smbconf_shutdown(ctx);
1556         return werr;
1557 }
1558
1559 /****************************************************************
1560 ****************************************************************/
1561
1562 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1563 {
1564         WERROR werr;
1565
1566         if (!W_ERROR_IS_OK(r->out.result)) {
1567                 return r->out.result;
1568         }
1569
1570         if (!r->in.modify_config) {
1571                 return WERR_OK;
1572         }
1573
1574         werr = do_join_modify_vals_config(r);
1575         if (!W_ERROR_IS_OK(werr)) {
1576                 return werr;
1577         }
1578
1579         lp_load_global(get_dyn_CONFIGFILE());
1580
1581         r->out.modified_config = true;
1582         r->out.result = werr;
1583
1584         return werr;
1585 }
1586
1587 /****************************************************************
1588 ****************************************************************/
1589
1590 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1591 {
1592         WERROR werr;
1593
1594         if (!W_ERROR_IS_OK(r->out.result)) {
1595                 return r->out.result;
1596         }
1597
1598         if (!r->in.modify_config) {
1599                 return WERR_OK;
1600         }
1601
1602         werr = do_unjoin_modify_vals_config(r);
1603         if (!W_ERROR_IS_OK(werr)) {
1604                 return werr;
1605         }
1606
1607         lp_load_global(get_dyn_CONFIGFILE());
1608
1609         r->out.modified_config = true;
1610         r->out.result = werr;
1611
1612         return werr;
1613 }
1614
1615 /****************************************************************
1616 ****************************************************************/
1617
1618 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1619                                    const char *domain_str,
1620                                    const char **domain_p,
1621                                    const char **dc_p)
1622 {
1623         char *domain = NULL;
1624         char *dc = NULL;
1625         const char *p = NULL;
1626
1627         if (!domain_str || !domain_p || !dc_p) {
1628                 return false;
1629         }
1630
1631         p = strchr_m(domain_str, '\\');
1632
1633         if (p != NULL) {
1634                 domain = talloc_strndup(mem_ctx, domain_str,
1635                                          PTR_DIFF(p, domain_str));
1636                 dc = talloc_strdup(mem_ctx, p+1);
1637                 if (!dc) {
1638                         return false;
1639                 }
1640         } else {
1641                 domain = talloc_strdup(mem_ctx, domain_str);
1642                 dc = NULL;
1643         }
1644         if (!domain) {
1645                 return false;
1646         }
1647
1648         *domain_p = domain;
1649
1650         if (!*dc_p && dc) {
1651                 *dc_p = dc;
1652         }
1653
1654         return true;
1655 }
1656
1657 /****************************************************************
1658 ****************************************************************/
1659
1660 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1661                                          struct libnet_JoinCtx *r)
1662 {
1663         if (!r->in.domain_name) {
1664                 libnet_join_set_error_string(mem_ctx, r,
1665                         "No domain name defined");
1666                 return WERR_INVALID_PARAM;
1667         }
1668
1669         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1670                                     &r->in.domain_name,
1671                                     &r->in.dc_name)) {
1672                 libnet_join_set_error_string(mem_ctx, r,
1673                         "Failed to parse domain name");
1674                 return WERR_INVALID_PARAM;
1675         }
1676
1677         if (IS_DC) {
1678                 return WERR_SETUP_DOMAIN_CONTROLLER;
1679         }
1680
1681         if (!secrets_init()) {
1682                 libnet_join_set_error_string(mem_ctx, r,
1683                         "Unable to open secrets database");
1684                 return WERR_CAN_NOT_COMPLETE;
1685         }
1686
1687         return WERR_OK;
1688 }
1689
1690 /****************************************************************
1691 ****************************************************************/
1692
1693 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1694 {
1695         NTSTATUS status;
1696
1697         /* Try adding dom admins to builtin\admins. Only log failures. */
1698         status = create_builtin_administrators(domain_sid);
1699         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1700                 DEBUG(10,("Unable to auto-add domain administrators to "
1701                           "BUILTIN\\Administrators during join because "
1702                           "winbindd must be running.\n"));
1703         } else if (!NT_STATUS_IS_OK(status)) {
1704                 DEBUG(5, ("Failed to auto-add domain administrators to "
1705                           "BUILTIN\\Administrators during join: %s\n",
1706                           nt_errstr(status)));
1707         }
1708
1709         /* Try adding dom users to builtin\users. Only log failures. */
1710         status = create_builtin_users(domain_sid);
1711         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1712                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1713                           "during join because winbindd must be running.\n"));
1714         } else if (!NT_STATUS_IS_OK(status)) {
1715                 DEBUG(5, ("Failed to auto-add domain administrators to "
1716                           "BUILTIN\\Administrators during join: %s\n",
1717                           nt_errstr(status)));
1718         }
1719 }
1720
1721 /****************************************************************
1722 ****************************************************************/
1723
1724 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1725                                           struct libnet_JoinCtx *r)
1726 {
1727         WERROR werr;
1728
1729         if (!W_ERROR_IS_OK(r->out.result)) {
1730                 return r->out.result;
1731         }
1732
1733         werr = do_JoinConfig(r);
1734         if (!W_ERROR_IS_OK(werr)) {
1735                 return werr;
1736         }
1737
1738         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1739                 return WERR_OK;
1740         }
1741
1742         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1743         if (r->out.dns_domain_name) {
1744                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1745         }
1746
1747 #ifdef HAVE_ADS
1748         if (r->out.domain_is_ad &&
1749             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1750                 ADS_STATUS ads_status;
1751
1752                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1753                 if (!ADS_ERR_OK(ads_status)) {
1754                         return WERR_GENERAL_FAILURE;
1755                 }
1756         }
1757 #endif /* HAVE_ADS */
1758
1759         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1760
1761         return WERR_OK;
1762 }
1763
1764 /****************************************************************
1765 ****************************************************************/
1766
1767 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1768 {
1769         const char *krb5_cc_env = NULL;
1770
1771         if (r->in.ads) {
1772                 ads_destroy(&r->in.ads);
1773         }
1774
1775         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1776         if (krb5_cc_env && strcasecmp_m(krb5_cc_env, "MEMORY:libnetjoin")) {
1777                 unsetenv(KRB5_ENV_CCNAME);
1778         }
1779
1780         return 0;
1781 }
1782
1783 /****************************************************************
1784 ****************************************************************/
1785
1786 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1787 {
1788         const char *krb5_cc_env = NULL;
1789
1790         if (r->in.ads) {
1791                 ads_destroy(&r->in.ads);
1792         }
1793
1794         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1795         if (krb5_cc_env && strcasecmp_m(krb5_cc_env, "MEMORY:libnetjoin")) {
1796                 unsetenv(KRB5_ENV_CCNAME);
1797         }
1798
1799         return 0;
1800 }
1801
1802 /****************************************************************
1803 ****************************************************************/
1804
1805 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1806                            struct libnet_JoinCtx **r)
1807 {
1808         struct libnet_JoinCtx *ctx;
1809         const char *krb5_cc_env = NULL;
1810
1811         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1812         if (!ctx) {
1813                 return WERR_NOMEM;
1814         }
1815
1816         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1817
1818         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1819         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1820
1821         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1822         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1823                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1824                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1825                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1826         }
1827
1828         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1829
1830         *r = ctx;
1831
1832         return WERR_OK;
1833 }
1834
1835 /****************************************************************
1836 ****************************************************************/
1837
1838 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1839                              struct libnet_UnjoinCtx **r)
1840 {
1841         struct libnet_UnjoinCtx *ctx;
1842         const char *krb5_cc_env = NULL;
1843
1844         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1845         if (!ctx) {
1846                 return WERR_NOMEM;
1847         }
1848
1849         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1850
1851         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1852         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1853
1854         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1855         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1856                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1857                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1858                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1859         }
1860
1861         *r = ctx;
1862
1863         return WERR_OK;
1864 }
1865
1866 /****************************************************************
1867 ****************************************************************/
1868
1869 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1870                                        struct libnet_JoinCtx *r)
1871 {
1872         bool valid_security = false;
1873         bool valid_workgroup = false;
1874         bool valid_realm = false;
1875
1876         /* check if configuration is already set correctly */
1877
1878         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1879
1880         switch (r->out.domain_is_ad) {
1881                 case false:
1882                         valid_security = (lp_security() == SEC_DOMAIN);
1883                         if (valid_workgroup && valid_security) {
1884                                 /* nothing to be done */
1885                                 return WERR_OK;
1886                         }
1887                         break;
1888                 case true:
1889                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1890                         switch (lp_security()) {
1891                         case SEC_DOMAIN:
1892                         case SEC_ADS:
1893                                 valid_security = true;
1894                         }
1895
1896                         if (valid_workgroup && valid_realm && valid_security) {
1897                                 /* nothing to be done */
1898                                 return WERR_OK;
1899                         }
1900                         break;
1901         }
1902
1903         /* check if we are supposed to manipulate configuration */
1904
1905         if (!r->in.modify_config) {
1906
1907                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1908
1909                 if (!valid_workgroup) {
1910                         wrong_conf = talloc_asprintf_append(wrong_conf,
1911                                 "\"workgroup\" set to '%s', should be '%s'",
1912                                 lp_workgroup(), r->out.netbios_domain_name);
1913                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1914                 }
1915
1916                 if (!valid_realm) {
1917                         wrong_conf = talloc_asprintf_append(wrong_conf,
1918                                 "\"realm\" set to '%s', should be '%s'",
1919                                 lp_realm(), r->out.dns_domain_name);
1920                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1921                 }
1922
1923                 if (!valid_security) {
1924                         const char *sec = NULL;
1925                         switch (lp_security()) {
1926                         case SEC_SHARE: sec = "share"; break;
1927                         case SEC_USER:  sec = "user"; break;
1928                         case SEC_DOMAIN: sec = "domain"; break;
1929                         case SEC_ADS: sec = "ads"; break;
1930                         }
1931                         wrong_conf = talloc_asprintf_append(wrong_conf,
1932                                 "\"security\" set to '%s', should be %s",
1933                                 sec, r->out.domain_is_ad ?
1934                                 "either 'domain' or 'ads'" : "'domain'");
1935                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1936                 }
1937
1938                 libnet_join_set_error_string(mem_ctx, r,
1939                         "Invalid configuration (%s) and configuration modification "
1940                         "was not requested", wrong_conf);
1941                 return WERR_CAN_NOT_COMPLETE;
1942         }
1943
1944         /* check if we are able to manipulate configuration */
1945
1946         if (!lp_config_backend_is_registry()) {
1947                 libnet_join_set_error_string(mem_ctx, r,
1948                         "Configuration manipulation requested but not "
1949                         "supported by backend");
1950                 return WERR_NOT_SUPPORTED;
1951         }
1952
1953         return WERR_OK;
1954 }
1955
1956 /****************************************************************
1957 ****************************************************************/
1958
1959 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1960                                 struct libnet_JoinCtx *r)
1961 {
1962         NTSTATUS status;
1963         WERROR werr;
1964         struct cli_state *cli = NULL;
1965 #ifdef HAVE_ADS
1966         ADS_STATUS ads_status;
1967 #endif /* HAVE_ADS */
1968
1969         if (!r->in.dc_name) {
1970                 struct netr_DsRGetDCNameInfo *info;
1971                 const char *dc;
1972                 status = dsgetdcname(mem_ctx,
1973                                      r->in.msg_ctx,
1974                                      r->in.domain_name,
1975                                      NULL,
1976                                      NULL,
1977                                      DS_FORCE_REDISCOVERY |
1978                                      DS_DIRECTORY_SERVICE_REQUIRED |
1979                                      DS_WRITABLE_REQUIRED |
1980                                      DS_RETURN_DNS_NAME,
1981                                      &info);
1982                 if (!NT_STATUS_IS_OK(status)) {
1983                         libnet_join_set_error_string(mem_ctx, r,
1984                                 "failed to find DC for domain %s",
1985                                 r->in.domain_name,
1986                                 get_friendly_nt_error_msg(status));
1987                         return WERR_DCNOTFOUND;
1988                 }
1989
1990                 dc = strip_hostname(info->dc_unc);
1991                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1992                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1993         }
1994
1995         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1996         if (!NT_STATUS_IS_OK(status)) {
1997                 libnet_join_set_error_string(mem_ctx, r,
1998                         "failed to lookup DC info for domain '%s' over rpc: %s",
1999                         r->in.domain_name, get_friendly_nt_error_msg(status));
2000                 return ntstatus_to_werror(status);
2001         }
2002
2003         werr = libnet_join_check_config(mem_ctx, r);
2004         if (!W_ERROR_IS_OK(werr)) {
2005                 goto done;
2006         }
2007
2008 #ifdef HAVE_ADS
2009
2010         create_local_private_krb5_conf_for_domain(
2011                 r->out.dns_domain_name, r->out.netbios_domain_name,
2012                 NULL, cli_state_remote_sockaddr(cli),
2013                 cli_state_remote_name(cli));
2014
2015         if (r->out.domain_is_ad && r->in.account_ou &&
2016             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2017
2018                 ads_status = libnet_join_connect_ads(mem_ctx, r);
2019                 if (!ADS_ERR_OK(ads_status)) {
2020                         return WERR_DEFAULT_JOIN_REQUIRED;
2021                 }
2022
2023                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2024                 if (!ADS_ERR_OK(ads_status)) {
2025                         libnet_join_set_error_string(mem_ctx, r,
2026                                 "failed to precreate account in ou %s: %s",
2027                                 r->in.account_ou,
2028                                 ads_errstr(ads_status));
2029                         return WERR_DEFAULT_JOIN_REQUIRED;
2030                 }
2031
2032                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2033         }
2034 #endif /* HAVE_ADS */
2035
2036         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2037             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2038                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2039         } else {
2040                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2041         }
2042         if (!NT_STATUS_IS_OK(status)) {
2043                 libnet_join_set_error_string(mem_ctx, r,
2044                         "failed to join domain '%s' over rpc: %s",
2045                         r->in.domain_name, get_friendly_nt_error_msg(status));
2046                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2047                         return WERR_SETUP_ALREADY_JOINED;
2048                 }
2049                 werr = ntstatus_to_werror(status);
2050                 goto done;
2051         }
2052
2053         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2054                 werr = WERR_SETUP_NOT_JOINED;
2055                 goto done;
2056         }
2057
2058         werr = WERR_OK;
2059
2060  done:
2061         if (cli) {
2062                 cli_shutdown(cli);
2063         }
2064
2065         return werr;
2066 }
2067
2068 /****************************************************************
2069 ****************************************************************/
2070
2071 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2072                                    struct libnet_JoinCtx *r)
2073 {
2074         WERROR werr;
2075         struct libnet_UnjoinCtx *u = NULL;
2076
2077         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2078         if (!W_ERROR_IS_OK(werr)) {
2079                 return werr;
2080         }
2081
2082         u->in.debug             = r->in.debug;
2083         u->in.dc_name           = r->in.dc_name;
2084         u->in.domain_name       = r->in.domain_name;
2085         u->in.admin_account     = r->in.admin_account;
2086         u->in.admin_password    = r->in.admin_password;
2087         u->in.modify_config     = r->in.modify_config;
2088         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2089                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2090
2091         werr = libnet_Unjoin(mem_ctx, u);
2092         TALLOC_FREE(u);
2093
2094         return werr;
2095 }
2096
2097 /****************************************************************
2098 ****************************************************************/
2099
2100 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2101                    struct libnet_JoinCtx *r)
2102 {
2103         WERROR werr;
2104
2105         if (r->in.debug) {
2106                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2107         }
2108
2109         ZERO_STRUCT(r->out);
2110
2111         werr = libnet_join_pre_processing(mem_ctx, r);
2112         if (!W_ERROR_IS_OK(werr)) {
2113                 goto done;
2114         }
2115
2116         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2117                 werr = libnet_DomainJoin(mem_ctx, r);
2118                 if (!W_ERROR_IS_OK(werr)) {
2119                         goto done;
2120                 }
2121         }
2122
2123         werr = libnet_join_post_processing(mem_ctx, r);
2124         if (!W_ERROR_IS_OK(werr)) {
2125                 goto done;
2126         }
2127
2128         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2129                 werr = libnet_join_post_verify(mem_ctx, r);
2130                 if (!W_ERROR_IS_OK(werr)) {
2131                         libnet_join_rollback(mem_ctx, r);
2132                 }
2133         }
2134
2135  done:
2136         r->out.result = werr;
2137
2138         if (r->in.debug) {
2139                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2140         }
2141         return werr;
2142 }
2143
2144 /****************************************************************
2145 ****************************************************************/
2146
2147 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2148                                   struct libnet_UnjoinCtx *r)
2149 {
2150         NTSTATUS status;
2151
2152         if (!r->in.domain_sid) {
2153                 struct dom_sid sid;
2154                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2155                         libnet_unjoin_set_error_string(mem_ctx, r,
2156                                 "Unable to fetch domain sid: are we joined?");
2157                         return WERR_SETUP_NOT_JOINED;
2158                 }
2159                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2160                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2161         }
2162
2163         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2164             !r->in.delete_machine_account) {
2165                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2166                 return WERR_OK;
2167         }
2168
2169         if (!r->in.dc_name) {
2170                 struct netr_DsRGetDCNameInfo *info;
2171                 const char *dc;
2172                 status = dsgetdcname(mem_ctx,
2173                                      r->in.msg_ctx,
2174                                      r->in.domain_name,
2175                                      NULL,
2176                                      NULL,
2177                                      DS_DIRECTORY_SERVICE_REQUIRED |
2178                                      DS_WRITABLE_REQUIRED |
2179                                      DS_RETURN_DNS_NAME,
2180                                      &info);
2181                 if (!NT_STATUS_IS_OK(status)) {
2182                         libnet_unjoin_set_error_string(mem_ctx, r,
2183                                 "failed to find DC for domain %s",
2184                                 r->in.domain_name,
2185                                 get_friendly_nt_error_msg(status));
2186                         return WERR_DCNOTFOUND;
2187                 }
2188
2189                 dc = strip_hostname(info->dc_unc);
2190                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2191                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2192         }
2193
2194 #ifdef HAVE_ADS
2195         /* for net ads leave, try to delete the account.  If it works,
2196            no sense in disabling.  If it fails, we can still try to
2197            disable it. jmcd */
2198
2199         if (r->in.delete_machine_account) {
2200                 ADS_STATUS ads_status;
2201                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2202                 if (ADS_ERR_OK(ads_status)) {
2203                         /* dirty hack */
2204                         r->out.dns_domain_name =
2205                                 talloc_strdup(mem_ctx,
2206                                               r->in.ads->server.realm);
2207                         ads_status =
2208                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2209                 }
2210                 if (!ADS_ERR_OK(ads_status)) {
2211                         libnet_unjoin_set_error_string(mem_ctx, r,
2212                                 "failed to remove machine account from AD: %s",
2213                                 ads_errstr(ads_status));
2214                 } else {
2215                         r->out.deleted_machine_account = true;
2216                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2217                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2218                         return WERR_OK;
2219                 }
2220         }
2221 #endif /* HAVE_ADS */
2222
2223         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2224            "disable".  */
2225         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2226                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2227                 if (!NT_STATUS_IS_OK(status)) {
2228                         libnet_unjoin_set_error_string(mem_ctx, r,
2229                                 "failed to disable machine account via rpc: %s",
2230                                 get_friendly_nt_error_msg(status));
2231                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2232                                 return WERR_SETUP_NOT_JOINED;
2233                         }
2234                         return ntstatus_to_werror(status);
2235                 }
2236
2237                 r->out.disabled_machine_account = true;
2238         }
2239
2240         /* If disable succeeded or was not requested at all, we
2241            should be getting rid of our end of things */
2242
2243         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2244
2245         return WERR_OK;
2246 }
2247
2248 /****************************************************************
2249 ****************************************************************/
2250
2251 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2252                                            struct libnet_UnjoinCtx *r)
2253 {
2254         if (!r->in.domain_name) {
2255                 libnet_unjoin_set_error_string(mem_ctx, r,
2256                         "No domain name defined");
2257                 return WERR_INVALID_PARAM;
2258         }
2259
2260         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2261                                     &r->in.domain_name,
2262                                     &r->in.dc_name)) {
2263                 libnet_unjoin_set_error_string(mem_ctx, r,
2264                         "Failed to parse domain name");
2265                 return WERR_INVALID_PARAM;
2266         }
2267
2268         if (IS_DC) {
2269                 return WERR_SETUP_DOMAIN_CONTROLLER;
2270         }
2271
2272         if (!secrets_init()) {
2273                 libnet_unjoin_set_error_string(mem_ctx, r,
2274                         "Unable to open secrets database");
2275                 return WERR_CAN_NOT_COMPLETE;
2276         }
2277
2278         return WERR_OK;
2279 }
2280
2281 /****************************************************************
2282 ****************************************************************/
2283
2284 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2285                                             struct libnet_UnjoinCtx *r)
2286 {
2287         saf_delete(r->out.netbios_domain_name);
2288         saf_delete(r->out.dns_domain_name);
2289
2290         return libnet_unjoin_config(r);
2291 }
2292
2293 /****************************************************************
2294 ****************************************************************/
2295
2296 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2297                      struct libnet_UnjoinCtx *r)
2298 {
2299         WERROR werr;
2300
2301         if (r->in.debug) {
2302                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2303         }
2304
2305         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2306         if (!W_ERROR_IS_OK(werr)) {
2307                 goto done;
2308         }
2309
2310         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2311                 werr = libnet_DomainUnjoin(mem_ctx, r);
2312                 if (!W_ERROR_IS_OK(werr)) {
2313                         libnet_unjoin_config(r);
2314                         goto done;
2315                 }
2316         }
2317
2318         werr = libnet_unjoin_post_processing(mem_ctx, r);
2319         if (!W_ERROR_IS_OK(werr)) {
2320                 goto done;
2321         }
2322
2323  done:
2324         r->out.result = werr;
2325
2326         if (r->in.debug) {
2327                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2328         }
2329
2330         return werr;
2331 }