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 "../libcli/security/security.h"
  39 #include "passdb.h"
  40 #include "libsmb/libsmb.h"
  41 #include "../libcli/smb/smbXcli_base.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                                    SMB_SIGNING_DEFAULT);
 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                                      SMB_SIGNING_DEFAULT);
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                                              SMB_SIGNING_DEFAULT);
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                         smbXcli_conn_remote_name(cli->conn),
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                         smbXcli_conn_remote_name(cli->conn),
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         if (r->in.ads) {
1770                 ads_destroy(&r->in.ads);
1771         }
1772
1773         return 0;
1774 }
1775
1776 /****************************************************************
1777 ****************************************************************/
1778
1779 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1780 {
1781         if (r->in.ads) {
1782                 ads_destroy(&r->in.ads);
1783         }
1784
1785         return 0;
1786 }
1787
1788 /****************************************************************
1789 ****************************************************************/
1790
1791 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1792                            struct libnet_JoinCtx **r)
1793 {
1794         struct libnet_JoinCtx *ctx;
1795
1796         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1797         if (!ctx) {
1798                 return WERR_NOMEM;
1799         }
1800
1801         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1802
1803         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1804         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1805
1806         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1807
1808         *r = ctx;
1809
1810         return WERR_OK;
1811 }
1812
1813 /****************************************************************
1814 ****************************************************************/
1815
1816 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1817                              struct libnet_UnjoinCtx **r)
1818 {
1819         struct libnet_UnjoinCtx *ctx;
1820
1821         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1822         if (!ctx) {
1823                 return WERR_NOMEM;
1824         }
1825
1826         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1827
1828         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
1829         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1830
1831         *r = ctx;
1832
1833         return WERR_OK;
1834 }
1835
1836 /****************************************************************
1837 ****************************************************************/
1838
1839 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1840                                        struct libnet_JoinCtx *r)
1841 {
1842         bool valid_security = false;
1843         bool valid_workgroup = false;
1844         bool valid_realm = false;
1845
1846         /* check if configuration is already set correctly */
1847
1848         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1849
1850         switch (r->out.domain_is_ad) {
1851                 case false:
1852                         valid_security = (lp_security() == SEC_DOMAIN);
1853                         if (valid_workgroup && valid_security) {
1854                                 /* nothing to be done */
1855                                 return WERR_OK;
1856                         }
1857                         break;
1858                 case true:
1859                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1860                         switch (lp_security()) {
1861                         case SEC_DOMAIN:
1862                         case SEC_ADS:
1863                                 valid_security = true;
1864                         }
1865
1866                         if (valid_workgroup && valid_realm && valid_security) {
1867                                 /* nothing to be done */
1868                                 return WERR_OK;
1869                         }
1870                         break;
1871         }
1872
1873         /* check if we are supposed to manipulate configuration */
1874
1875         if (!r->in.modify_config) {
1876
1877                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1878
1879                 if (!valid_workgroup) {
1880                         wrong_conf = talloc_asprintf_append(wrong_conf,
1881                                 "\"workgroup\" set to '%s', should be '%s'",
1882                                 lp_workgroup(), r->out.netbios_domain_name);
1883                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1884                 }
1885
1886                 if (!valid_realm) {
1887                         wrong_conf = talloc_asprintf_append(wrong_conf,
1888                                 "\"realm\" set to '%s', should be '%s'",
1889                                 lp_realm(), r->out.dns_domain_name);
1890                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1891                 }
1892
1893                 if (!valid_security) {
1894                         const char *sec = NULL;
1895                         switch (lp_security()) {
1896                         case SEC_USER:  sec = "user"; break;
1897                         case SEC_DOMAIN: sec = "domain"; break;
1898                         case SEC_ADS: sec = "ads"; break;
1899                         }
1900                         wrong_conf = talloc_asprintf_append(wrong_conf,
1901                                 "\"security\" set to '%s', should be %s",
1902                                 sec, r->out.domain_is_ad ?
1903                                 "either 'domain' or 'ads'" : "'domain'");
1904                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1905                 }
1906
1907                 libnet_join_set_error_string(mem_ctx, r,
1908                         "Invalid configuration (%s) and configuration modification "
1909                         "was not requested", wrong_conf);
1910                 return WERR_CAN_NOT_COMPLETE;
1911         }
1912
1913         /* check if we are able to manipulate configuration */
1914
1915         if (!lp_config_backend_is_registry()) {
1916                 libnet_join_set_error_string(mem_ctx, r,
1917                         "Configuration manipulation requested but not "
1918                         "supported by backend");
1919                 return WERR_NOT_SUPPORTED;
1920         }
1921
1922         return WERR_OK;
1923 }
1924
1925 /****************************************************************
1926 ****************************************************************/
1927
1928 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1929                                 struct libnet_JoinCtx *r)
1930 {
1931         NTSTATUS status;
1932         WERROR werr;
1933         struct cli_state *cli = NULL;
1934 #ifdef HAVE_ADS
1935         ADS_STATUS ads_status;
1936 #endif /* HAVE_ADS */
1937
1938         if (!r->in.dc_name) {
1939                 struct netr_DsRGetDCNameInfo *info;
1940                 const char *dc;
1941                 status = dsgetdcname(mem_ctx,
1942                                      r->in.msg_ctx,
1943                                      r->in.domain_name,
1944                                      NULL,
1945                                      NULL,
1946                                      DS_FORCE_REDISCOVERY |
1947                                      DS_DIRECTORY_SERVICE_REQUIRED |
1948                                      DS_WRITABLE_REQUIRED |
1949                                      DS_RETURN_DNS_NAME,
1950                                      &info);
1951                 if (!NT_STATUS_IS_OK(status)) {
1952                         libnet_join_set_error_string(mem_ctx, r,
1953                                 "failed to find DC for domain %s",
1954                                 r->in.domain_name,
1955                                 get_friendly_nt_error_msg(status));
1956                         return WERR_DCNOTFOUND;
1957                 }
1958
1959                 dc = strip_hostname(info->dc_unc);
1960                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1961                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1962         }
1963
1964         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1965         if (!NT_STATUS_IS_OK(status)) {
1966                 libnet_join_set_error_string(mem_ctx, r,
1967                         "failed to lookup DC info for domain '%s' over rpc: %s",
1968                         r->in.domain_name, get_friendly_nt_error_msg(status));
1969                 return ntstatus_to_werror(status);
1970         }
1971
1972         werr = libnet_join_check_config(mem_ctx, r);
1973         if (!W_ERROR_IS_OK(werr)) {
1974                 goto done;
1975         }
1976
1977 #ifdef HAVE_ADS
1978
1979         create_local_private_krb5_conf_for_domain(
1980                 r->out.dns_domain_name, r->out.netbios_domain_name,
1981                 NULL, smbXcli_conn_remote_sockaddr(cli->conn),
1982                 smbXcli_conn_remote_name(cli->conn));
1983
1984         if (r->out.domain_is_ad && r->in.account_ou &&
1985             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1986
1987                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1988                 if (!ADS_ERR_OK(ads_status)) {
1989                         return WERR_DEFAULT_JOIN_REQUIRED;
1990                 }
1991
1992                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1993                 if (!ADS_ERR_OK(ads_status)) {
1994                         libnet_join_set_error_string(mem_ctx, r,
1995                                 "failed to precreate account in ou %s: %s",
1996                                 r->in.account_ou,
1997                                 ads_errstr(ads_status));
1998                         return WERR_DEFAULT_JOIN_REQUIRED;
1999                 }
2000
2001                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2002         }
2003 #endif /* HAVE_ADS */
2004
2005         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2006             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2007                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2008         } else {
2009                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2010         }
2011         if (!NT_STATUS_IS_OK(status)) {
2012                 libnet_join_set_error_string(mem_ctx, r,
2013                         "failed to join domain '%s' over rpc: %s",
2014                         r->in.domain_name, get_friendly_nt_error_msg(status));
2015                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2016                         return WERR_SETUP_ALREADY_JOINED;
2017                 }
2018                 werr = ntstatus_to_werror(status);
2019                 goto done;
2020         }
2021
2022         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2023                 werr = WERR_SETUP_NOT_JOINED;
2024                 goto done;
2025         }
2026
2027         werr = WERR_OK;
2028
2029  done:
2030         if (cli) {
2031                 cli_shutdown(cli);
2032         }
2033
2034         return werr;
2035 }
2036
2037 /****************************************************************
2038 ****************************************************************/
2039
2040 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2041                                    struct libnet_JoinCtx *r)
2042 {
2043         WERROR werr;
2044         struct libnet_UnjoinCtx *u = NULL;
2045
2046         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2047         if (!W_ERROR_IS_OK(werr)) {
2048                 return werr;
2049         }
2050
2051         u->in.debug             = r->in.debug;
2052         u->in.dc_name           = r->in.dc_name;
2053         u->in.domain_name       = r->in.domain_name;
2054         u->in.admin_account     = r->in.admin_account;
2055         u->in.admin_password    = r->in.admin_password;
2056         u->in.modify_config     = r->in.modify_config;
2057         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2058                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2059
2060         werr = libnet_Unjoin(mem_ctx, u);
2061         TALLOC_FREE(u);
2062
2063         return werr;
2064 }
2065
2066 /****************************************************************
2067 ****************************************************************/
2068
2069 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2070                    struct libnet_JoinCtx *r)
2071 {
2072         WERROR werr;
2073
2074         if (r->in.debug) {
2075                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2076         }
2077
2078         ZERO_STRUCT(r->out);
2079
2080         werr = libnet_join_pre_processing(mem_ctx, r);
2081         if (!W_ERROR_IS_OK(werr)) {
2082                 goto done;
2083         }
2084
2085         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2086                 werr = libnet_DomainJoin(mem_ctx, r);
2087                 if (!W_ERROR_IS_OK(werr)) {
2088                         goto done;
2089                 }
2090         }
2091
2092         werr = libnet_join_post_processing(mem_ctx, r);
2093         if (!W_ERROR_IS_OK(werr)) {
2094                 goto done;
2095         }
2096
2097         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2098                 werr = libnet_join_post_verify(mem_ctx, r);
2099                 if (!W_ERROR_IS_OK(werr)) {
2100                         libnet_join_rollback(mem_ctx, r);
2101                 }
2102         }
2103
2104  done:
2105         r->out.result = werr;
2106
2107         if (r->in.debug) {
2108                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2109         }
2110         return werr;
2111 }
2112
2113 /****************************************************************
2114 ****************************************************************/
2115
2116 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2117                                   struct libnet_UnjoinCtx *r)
2118 {
2119         NTSTATUS status;
2120
2121         if (!r->in.domain_sid) {
2122                 struct dom_sid sid;
2123                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2124                         libnet_unjoin_set_error_string(mem_ctx, r,
2125                                 "Unable to fetch domain sid: are we joined?");
2126                         return WERR_SETUP_NOT_JOINED;
2127                 }
2128                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2129                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2130         }
2131
2132         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2133             !r->in.delete_machine_account) {
2134                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2135                 return WERR_OK;
2136         }
2137
2138         if (!r->in.dc_name) {
2139                 struct netr_DsRGetDCNameInfo *info;
2140                 const char *dc;
2141                 status = dsgetdcname(mem_ctx,
2142                                      r->in.msg_ctx,
2143                                      r->in.domain_name,
2144                                      NULL,
2145                                      NULL,
2146                                      DS_DIRECTORY_SERVICE_REQUIRED |
2147                                      DS_WRITABLE_REQUIRED |
2148                                      DS_RETURN_DNS_NAME,
2149                                      &info);
2150                 if (!NT_STATUS_IS_OK(status)) {
2151                         libnet_unjoin_set_error_string(mem_ctx, r,
2152                                 "failed to find DC for domain %s",
2153                                 r->in.domain_name,
2154                                 get_friendly_nt_error_msg(status));
2155                         return WERR_DCNOTFOUND;
2156                 }
2157
2158                 dc = strip_hostname(info->dc_unc);
2159                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2160                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2161         }
2162
2163 #ifdef HAVE_ADS
2164         /* for net ads leave, try to delete the account.  If it works,
2165            no sense in disabling.  If it fails, we can still try to
2166            disable it. jmcd */
2167
2168         if (r->in.delete_machine_account) {
2169                 ADS_STATUS ads_status;
2170                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2171                 if (ADS_ERR_OK(ads_status)) {
2172                         /* dirty hack */
2173                         r->out.dns_domain_name =
2174                                 talloc_strdup(mem_ctx,
2175                                               r->in.ads->server.realm);
2176                         ads_status =
2177                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2178                 }
2179                 if (!ADS_ERR_OK(ads_status)) {
2180                         libnet_unjoin_set_error_string(mem_ctx, r,
2181                                 "failed to remove machine account from AD: %s",
2182                                 ads_errstr(ads_status));
2183                 } else {
2184                         r->out.deleted_machine_account = true;
2185                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2186                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2187                         return WERR_OK;
2188                 }
2189         }
2190 #endif /* HAVE_ADS */
2191
2192         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2193            "disable".  */
2194         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2195                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2196                 if (!NT_STATUS_IS_OK(status)) {
2197                         libnet_unjoin_set_error_string(mem_ctx, r,
2198                                 "failed to disable machine account via rpc: %s",
2199                                 get_friendly_nt_error_msg(status));
2200                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2201                                 return WERR_SETUP_NOT_JOINED;
2202                         }
2203                         return ntstatus_to_werror(status);
2204                 }
2205
2206                 r->out.disabled_machine_account = true;
2207         }
2208
2209         /* If disable succeeded or was not requested at all, we
2210            should be getting rid of our end of things */
2211
2212         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2213
2214         return WERR_OK;
2215 }
2216
2217 /****************************************************************
2218 ****************************************************************/
2219
2220 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2221                                            struct libnet_UnjoinCtx *r)
2222 {
2223         if (!r->in.domain_name) {
2224                 libnet_unjoin_set_error_string(mem_ctx, r,
2225                         "No domain name defined");
2226                 return WERR_INVALID_PARAM;
2227         }
2228
2229         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2230                                     &r->in.domain_name,
2231                                     &r->in.dc_name)) {
2232                 libnet_unjoin_set_error_string(mem_ctx, r,
2233                         "Failed to parse domain name");
2234                 return WERR_INVALID_PARAM;
2235         }
2236
2237         if (IS_DC) {
2238                 return WERR_SETUP_DOMAIN_CONTROLLER;
2239         }
2240
2241         if (!secrets_init()) {
2242                 libnet_unjoin_set_error_string(mem_ctx, r,
2243                         "Unable to open secrets database");
2244                 return WERR_CAN_NOT_COMPLETE;
2245         }
2246
2247         return WERR_OK;
2248 }
2249
2250 /****************************************************************
2251 ****************************************************************/
2252
2253 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2254                                             struct libnet_UnjoinCtx *r)
2255 {
2256         saf_delete(r->out.netbios_domain_name);
2257         saf_delete(r->out.dns_domain_name);
2258
2259         return libnet_unjoin_config(r);
2260 }
2261
2262 /****************************************************************
2263 ****************************************************************/
2264
2265 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2266                      struct libnet_UnjoinCtx *r)
2267 {
2268         WERROR werr;
2269
2270         if (r->in.debug) {
2271                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2272         }
2273
2274         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2275         if (!W_ERROR_IS_OK(werr)) {
2276                 goto done;
2277         }
2278
2279         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2280                 werr = libnet_DomainUnjoin(mem_ctx, r);
2281                 if (!W_ERROR_IS_OK(werr)) {
2282                         libnet_unjoin_config(r);
2283                         goto done;
2284                 }
2285         }
2286
2287         werr = libnet_unjoin_post_processing(mem_ctx, r);
2288         if (!W_ERROR_IS_OK(werr)) {
2289                 goto done;
2290         }
2291
2292  done:
2293         r->out.result = werr;
2294
2295         if (r->in.debug) {
2296                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2297         }
2298
2299         return werr;
2300 }