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->desthost, netbios_domain_name, nt_errstr(status)));
1214                 cli_shutdown(cli);
1215                 return status;
1216         }
1217
1218         if (!lp_client_schannel()) {
1219                 cli_shutdown(cli);
1220                 return NT_STATUS_OK;
1221         }
1222
1223         status = cli_rpc_pipe_open_schannel_with_key(
1224                 cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
1225                 DCERPC_AUTH_LEVEL_PRIVACY,
1226                 netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
1227
1228         cli_shutdown(cli);
1229
1230         if (!NT_STATUS_IS_OK(status)) {
1231                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1232                         "on netlogon pipe to server %s for domain %s. "
1233                         "Error was %s\n",
1234                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1235                 return status;
1236         }
1237
1238         return NT_STATUS_OK;
1239 }
1240
1241 /****************************************************************
1242 ****************************************************************/
1243
1244 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1245                                       struct libnet_JoinCtx *r)
1246 {
1247         NTSTATUS status;
1248
1249         status = libnet_join_ok(r->out.netbios_domain_name,
1250                                 r->in.machine_name,
1251                                 r->in.dc_name);
1252         if (!NT_STATUS_IS_OK(status)) {
1253                 libnet_join_set_error_string(mem_ctx, r,
1254                         "failed to verify domain membership after joining: %s",
1255                         get_friendly_nt_error_msg(status));
1256                 return WERR_SETUP_NOT_JOINED;
1257         }
1258
1259         return WERR_OK;
1260 }
1261
1262 /****************************************************************
1263 ****************************************************************/
1264
1265 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1266                                                     struct libnet_UnjoinCtx *r)
1267 {
1268         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1269                 return false;
1270         }
1271
1272         if (!secrets_delete_domain_sid(lp_workgroup())) {
1273                 return false;
1274         }
1275
1276         return true;
1277 }
1278
1279 /****************************************************************
1280 ****************************************************************/
1281
1282 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1283                                              struct libnet_UnjoinCtx *r)
1284 {
1285         struct cli_state *cli = NULL;
1286         struct rpc_pipe_client *pipe_hnd = NULL;
1287         struct policy_handle sam_pol, domain_pol, user_pol;
1288         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1289         char *acct_name;
1290         uint32_t user_rid;
1291         struct lsa_String lsa_acct_name;
1292         struct samr_Ids user_rids;
1293         struct samr_Ids name_types;
1294         union samr_UserInfo *info = NULL;
1295         struct dcerpc_binding_handle *b;
1296
1297         ZERO_STRUCT(sam_pol);
1298         ZERO_STRUCT(domain_pol);
1299         ZERO_STRUCT(user_pol);
1300
1301         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1302                                             r->in.admin_account,
1303                                             r->in.admin_password,
1304                                             r->in.use_kerberos,
1305                                             &cli);
1306         if (!NT_STATUS_IS_OK(status)) {
1307                 goto done;
1308         }
1309
1310         /* Open the domain */
1311
1312         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
1313                                           &pipe_hnd);
1314         if (!NT_STATUS_IS_OK(status)) {
1315                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1316                         nt_errstr(status)));
1317                 goto done;
1318         }
1319
1320         b = pipe_hnd->binding_handle;
1321
1322         status = dcerpc_samr_Connect2(b, mem_ctx,
1323                                       pipe_hnd->desthost,
1324                                       SEC_FLAG_MAXIMUM_ALLOWED,
1325                                       &sam_pol,
1326                                       &result);
1327         if (!NT_STATUS_IS_OK(status)) {
1328                 goto done;
1329         }
1330         if (!NT_STATUS_IS_OK(result)) {
1331                 status = result;
1332                 goto done;
1333         }
1334
1335         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1336                                         &sam_pol,
1337                                         SEC_FLAG_MAXIMUM_ALLOWED,
1338                                         r->in.domain_sid,
1339                                         &domain_pol,
1340                                         &result);
1341         if (!NT_STATUS_IS_OK(status)) {
1342                 goto done;
1343         }
1344         if (!NT_STATUS_IS_OK(result)) {
1345                 status = result;
1346                 goto done;
1347         }
1348
1349         /* Create domain user */
1350
1351         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1352         strlower_m(acct_name);
1353
1354         init_lsa_String(&lsa_acct_name, acct_name);
1355
1356         status = dcerpc_samr_LookupNames(b, mem_ctx,
1357                                          &domain_pol,
1358                                          1,
1359                                          &lsa_acct_name,
1360                                          &user_rids,
1361                                          &name_types,
1362                                          &result);
1363
1364         if (!NT_STATUS_IS_OK(status)) {
1365                 goto done;
1366         }
1367         if (!NT_STATUS_IS_OK(result)) {
1368                 status = result;
1369                 goto done;
1370         }
1371
1372         if (name_types.ids[0] != SID_NAME_USER) {
1373                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1374                         name_types.ids[0]));
1375                 status = NT_STATUS_INVALID_WORKSTATION;
1376                 goto done;
1377         }
1378
1379         user_rid = user_rids.ids[0];
1380
1381         /* Open handle on user */
1382
1383         status = dcerpc_samr_OpenUser(b, mem_ctx,
1384                                       &domain_pol,
1385                                       SEC_FLAG_MAXIMUM_ALLOWED,
1386                                       user_rid,
1387                                       &user_pol,
1388                                       &result);
1389         if (!NT_STATUS_IS_OK(status)) {
1390                 goto done;
1391         }
1392         if (!NT_STATUS_IS_OK(result)) {
1393                 status = result;
1394                 goto done;
1395         }
1396
1397         /* Get user info */
1398
1399         status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1400                                            &user_pol,
1401                                            16,
1402                                            &info,
1403                                            &result);
1404         if (!NT_STATUS_IS_OK(status)) {
1405                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1406                 goto done;
1407         }
1408         if (!NT_STATUS_IS_OK(result)) {
1409                 status = result;
1410                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1411                 goto done;
1412         }
1413
1414         /* now disable and setuser info */
1415
1416         info->info16.acct_flags |= ACB_DISABLED;
1417
1418         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1419                                          &user_pol,
1420                                          16,
1421                                          info,
1422                                          &result);
1423         if (!NT_STATUS_IS_OK(status)) {
1424                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1425                 goto done;
1426         }
1427         if (!NT_STATUS_IS_OK(result)) {
1428                 status = result;
1429                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1430                 goto done;
1431         }
1432         status = result;
1433         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1434
1435 done:
1436         if (pipe_hnd) {
1437                 if (is_valid_policy_hnd(&domain_pol)) {
1438                         dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1439                 }
1440                 if (is_valid_policy_hnd(&sam_pol)) {
1441                         dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1442                 }
1443                 TALLOC_FREE(pipe_hnd);
1444         }
1445
1446         if (cli) {
1447                 cli_shutdown(cli);
1448         }
1449
1450         return status;
1451 }
1452
1453 /****************************************************************
1454 ****************************************************************/
1455
1456 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1457 {
1458         WERROR werr;
1459         sbcErr err;
1460         struct smbconf_ctx *ctx;
1461
1462         err = smbconf_init_reg(r, &ctx, NULL);
1463         if (!SBC_ERROR_IS_OK(err)) {
1464                 werr = WERR_NO_SUCH_SERVICE;
1465                 goto done;
1466         }
1467
1468         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1469
1470                 err = smbconf_set_global_parameter(ctx, "security", "user");
1471                 if (!SBC_ERROR_IS_OK(err)) {
1472                         werr = WERR_NO_SUCH_SERVICE;
1473                         goto done;
1474                 }
1475
1476                 err = smbconf_set_global_parameter(ctx, "workgroup",
1477                                                    r->in.domain_name);
1478                 if (!SBC_ERROR_IS_OK(err)) {
1479                         werr = WERR_NO_SUCH_SERVICE;
1480                         goto done;
1481                 }
1482
1483                 smbconf_delete_global_parameter(ctx, "realm");
1484                 goto done;
1485         }
1486
1487         err = smbconf_set_global_parameter(ctx, "security", "domain");
1488         if (!SBC_ERROR_IS_OK(err)) {
1489                 werr = WERR_NO_SUCH_SERVICE;
1490                 goto done;
1491         }
1492
1493         err = smbconf_set_global_parameter(ctx, "workgroup",
1494                                            r->out.netbios_domain_name);
1495         if (!SBC_ERROR_IS_OK(err)) {
1496                 werr = WERR_NO_SUCH_SERVICE;
1497                 goto done;
1498         }
1499
1500         if (r->out.domain_is_ad) {
1501                 err = smbconf_set_global_parameter(ctx, "security", "ads");
1502                 if (!SBC_ERROR_IS_OK(err)) {
1503                         werr = WERR_NO_SUCH_SERVICE;
1504                         goto done;
1505                 }
1506
1507                 err = smbconf_set_global_parameter(ctx, "realm",
1508                                                    r->out.dns_domain_name);
1509                 if (!SBC_ERROR_IS_OK(err)) {
1510                         werr = WERR_NO_SUCH_SERVICE;
1511                         goto done;
1512                 }
1513         }
1514
1515  done:
1516         smbconf_shutdown(ctx);
1517         return werr;
1518 }
1519
1520 /****************************************************************
1521 ****************************************************************/
1522
1523 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1524 {
1525         WERROR werr = WERR_OK;
1526         sbcErr err;
1527         struct smbconf_ctx *ctx;
1528
1529         err = smbconf_init_reg(r, &ctx, NULL);
1530         if (!SBC_ERROR_IS_OK(err)) {
1531                 werr = WERR_NO_SUCH_SERVICE;
1532                 goto done;
1533         }
1534
1535         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1536
1537                 err = smbconf_set_global_parameter(ctx, "security", "user");
1538                 if (!SBC_ERROR_IS_OK(err)) {
1539                         werr = WERR_NO_SUCH_SERVICE;
1540                         goto done;
1541                 }
1542
1543                 werr = smbconf_delete_global_parameter(ctx, "workgroup");
1544                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1545
1546                 smbconf_delete_global_parameter(ctx, "realm");
1547         }
1548
1549  done:
1550         smbconf_shutdown(ctx);
1551         return werr;
1552 }
1553
1554 /****************************************************************
1555 ****************************************************************/
1556
1557 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1558 {
1559         WERROR werr;
1560
1561         if (!W_ERROR_IS_OK(r->out.result)) {
1562                 return r->out.result;
1563         }
1564
1565         if (!r->in.modify_config) {
1566                 return WERR_OK;
1567         }
1568
1569         werr = do_join_modify_vals_config(r);
1570         if (!W_ERROR_IS_OK(werr)) {
1571                 return werr;
1572         }
1573
1574         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1575
1576         r->out.modified_config = true;
1577         r->out.result = werr;
1578
1579         return werr;
1580 }
1581
1582 /****************************************************************
1583 ****************************************************************/
1584
1585 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1586 {
1587         WERROR werr;
1588
1589         if (!W_ERROR_IS_OK(r->out.result)) {
1590                 return r->out.result;
1591         }
1592
1593         if (!r->in.modify_config) {
1594                 return WERR_OK;
1595         }
1596
1597         werr = do_unjoin_modify_vals_config(r);
1598         if (!W_ERROR_IS_OK(werr)) {
1599                 return werr;
1600         }
1601
1602         lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
1603
1604         r->out.modified_config = true;
1605         r->out.result = werr;
1606
1607         return werr;
1608 }
1609
1610 /****************************************************************
1611 ****************************************************************/
1612
1613 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1614                                    const char *domain_str,
1615                                    const char **domain_p,
1616                                    const char **dc_p)
1617 {
1618         char *domain = NULL;
1619         char *dc = NULL;
1620         const char *p = NULL;
1621
1622         if (!domain_str || !domain_p || !dc_p) {
1623                 return false;
1624         }
1625
1626         p = strchr_m(domain_str, '\\');
1627
1628         if (p != NULL) {
1629                 domain = talloc_strndup(mem_ctx, domain_str,
1630                                          PTR_DIFF(p, domain_str));
1631                 dc = talloc_strdup(mem_ctx, p+1);
1632                 if (!dc) {
1633                         return false;
1634                 }
1635         } else {
1636                 domain = talloc_strdup(mem_ctx, domain_str);
1637                 dc = NULL;
1638         }
1639         if (!domain) {
1640                 return false;
1641         }
1642
1643         *domain_p = domain;
1644
1645         if (!*dc_p && dc) {
1646                 *dc_p = dc;
1647         }
1648
1649         return true;
1650 }
1651
1652 /****************************************************************
1653 ****************************************************************/
1654
1655 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1656                                          struct libnet_JoinCtx *r)
1657 {
1658         if (!r->in.domain_name) {
1659                 libnet_join_set_error_string(mem_ctx, r,
1660                         "No domain name defined");
1661                 return WERR_INVALID_PARAM;
1662         }
1663
1664         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1665                                     &r->in.domain_name,
1666                                     &r->in.dc_name)) {
1667                 libnet_join_set_error_string(mem_ctx, r,
1668                         "Failed to parse domain name");
1669                 return WERR_INVALID_PARAM;
1670         }
1671
1672         if (IS_DC) {
1673                 return WERR_SETUP_DOMAIN_CONTROLLER;
1674         }
1675
1676         if (!secrets_init()) {
1677                 libnet_join_set_error_string(mem_ctx, r,
1678                         "Unable to open secrets database");
1679                 return WERR_CAN_NOT_COMPLETE;
1680         }
1681
1682         return WERR_OK;
1683 }
1684
1685 /****************************************************************
1686 ****************************************************************/
1687
1688 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1689 {
1690         NTSTATUS status;
1691
1692         /* Try adding dom admins to builtin\admins. Only log failures. */
1693         status = create_builtin_administrators(domain_sid);
1694         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1695                 DEBUG(10,("Unable to auto-add domain administrators to "
1696                           "BUILTIN\\Administrators during join because "
1697                           "winbindd must be running."));
1698         } else if (!NT_STATUS_IS_OK(status)) {
1699                 DEBUG(5, ("Failed to auto-add domain administrators to "
1700                           "BUILTIN\\Administrators during join: %s\n",
1701                           nt_errstr(status)));
1702         }
1703
1704         /* Try adding dom users to builtin\users. Only log failures. */
1705         status = create_builtin_users(domain_sid);
1706         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1707                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1708                           "during join because winbindd must be running."));
1709         } else if (!NT_STATUS_IS_OK(status)) {
1710                 DEBUG(5, ("Failed to auto-add domain administrators to "
1711                           "BUILTIN\\Administrators during join: %s\n",
1712                           nt_errstr(status)));
1713         }
1714 }
1715
1716 /****************************************************************
1717 ****************************************************************/
1718
1719 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1720                                           struct libnet_JoinCtx *r)
1721 {
1722         WERROR werr;
1723
1724         if (!W_ERROR_IS_OK(r->out.result)) {
1725                 return r->out.result;
1726         }
1727
1728         werr = do_JoinConfig(r);
1729         if (!W_ERROR_IS_OK(werr)) {
1730                 return werr;
1731         }
1732
1733         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1734                 return WERR_OK;
1735         }
1736
1737         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1738         if (r->out.dns_domain_name) {
1739                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1740         }
1741
1742 #ifdef HAVE_ADS
1743         if (r->out.domain_is_ad &&
1744             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1745                 ADS_STATUS ads_status;
1746
1747                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1748                 if (!ADS_ERR_OK(ads_status)) {
1749                         return WERR_GENERAL_FAILURE;
1750                 }
1751         }
1752 #endif /* HAVE_ADS */
1753
1754         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1755
1756         return WERR_OK;
1757 }
1758
1759 /****************************************************************
1760 ****************************************************************/
1761
1762 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1763 {
1764         const char *krb5_cc_env = NULL;
1765
1766         if (r->in.ads) {
1767                 ads_destroy(&r->in.ads);
1768         }
1769
1770         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1771         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1772                 unsetenv(KRB5_ENV_CCNAME);
1773         }
1774
1775         return 0;
1776 }
1777
1778 /****************************************************************
1779 ****************************************************************/
1780
1781 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1782 {
1783         const char *krb5_cc_env = NULL;
1784
1785         if (r->in.ads) {
1786                 ads_destroy(&r->in.ads);
1787         }
1788
1789         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1790         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1791                 unsetenv(KRB5_ENV_CCNAME);
1792         }
1793
1794         return 0;
1795 }
1796
1797 /****************************************************************
1798 ****************************************************************/
1799
1800 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1801                            struct libnet_JoinCtx **r)
1802 {
1803         struct libnet_JoinCtx *ctx;
1804         const char *krb5_cc_env = NULL;
1805
1806         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1807         if (!ctx) {
1808                 return WERR_NOMEM;
1809         }
1810
1811         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1812
1813         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1814         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1815
1816         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1817         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1818                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1819                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1820                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1821         }
1822
1823         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1824
1825         *r = ctx;
1826
1827         return WERR_OK;
1828 }
1829
1830 /****************************************************************
1831 ****************************************************************/
1832
1833 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1834                              struct libnet_UnjoinCtx **r)
1835 {
1836         struct libnet_UnjoinCtx *ctx;
1837         const char *krb5_cc_env = NULL;
1838
1839         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1840         if (!ctx) {
1841                 return WERR_NOMEM;
1842         }
1843
1844         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1845
1846         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1847         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1848
1849         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1850         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1851                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1852                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1853                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1854         }
1855
1856         *r = ctx;
1857
1858         return WERR_OK;
1859 }
1860
1861 /****************************************************************
1862 ****************************************************************/
1863
1864 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
1865                                        struct libnet_JoinCtx *r)
1866 {
1867         bool valid_security = false;
1868         bool valid_workgroup = false;
1869         bool valid_realm = false;
1870
1871         /* check if configuration is already set correctly */
1872
1873         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
1874
1875         switch (r->out.domain_is_ad) {
1876                 case false:
1877                         valid_security = (lp_security() == SEC_DOMAIN);
1878                         if (valid_workgroup && valid_security) {
1879                                 /* nothing to be done */
1880                                 return WERR_OK;
1881                         }
1882                         break;
1883                 case true:
1884                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
1885                         switch (lp_security()) {
1886                         case SEC_DOMAIN:
1887                         case SEC_ADS:
1888                                 valid_security = true;
1889                         }
1890
1891                         if (valid_workgroup && valid_realm && valid_security) {
1892                                 /* nothing to be done */
1893                                 return WERR_OK;
1894                         }
1895                         break;
1896         }
1897
1898         /* check if we are supposed to manipulate configuration */
1899
1900         if (!r->in.modify_config) {
1901
1902                 char *wrong_conf = talloc_strdup(mem_ctx, "");
1903
1904                 if (!valid_workgroup) {
1905                         wrong_conf = talloc_asprintf_append(wrong_conf,
1906                                 "\"workgroup\" set to '%s', should be '%s'",
1907                                 lp_workgroup(), r->out.netbios_domain_name);
1908                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1909                 }
1910
1911                 if (!valid_realm) {
1912                         wrong_conf = talloc_asprintf_append(wrong_conf,
1913                                 "\"realm\" set to '%s', should be '%s'",
1914                                 lp_realm(), r->out.dns_domain_name);
1915                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1916                 }
1917
1918                 if (!valid_security) {
1919                         const char *sec = NULL;
1920                         switch (lp_security()) {
1921                         case SEC_SHARE: sec = "share"; break;
1922                         case SEC_USER:  sec = "user"; break;
1923                         case SEC_DOMAIN: sec = "domain"; break;
1924                         case SEC_ADS: sec = "ads"; break;
1925                         }
1926                         wrong_conf = talloc_asprintf_append(wrong_conf,
1927                                 "\"security\" set to '%s', should be %s",
1928                                 sec, r->out.domain_is_ad ?
1929                                 "either 'domain' or 'ads'" : "'domain'");
1930                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
1931                 }
1932
1933                 libnet_join_set_error_string(mem_ctx, r,
1934                         "Invalid configuration (%s) and configuration modification "
1935                         "was not requested", wrong_conf);
1936                 return WERR_CAN_NOT_COMPLETE;
1937         }
1938
1939         /* check if we are able to manipulate configuration */
1940
1941         if (!lp_config_backend_is_registry()) {
1942                 libnet_join_set_error_string(mem_ctx, r,
1943                         "Configuration manipulation requested but not "
1944                         "supported by backend");
1945                 return WERR_NOT_SUPPORTED;
1946         }
1947
1948         return WERR_OK;
1949 }
1950
1951 /****************************************************************
1952 ****************************************************************/
1953
1954 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1955                                 struct libnet_JoinCtx *r)
1956 {
1957         NTSTATUS status;
1958         WERROR werr;
1959         struct cli_state *cli = NULL;
1960 #ifdef HAVE_ADS
1961         ADS_STATUS ads_status;
1962 #endif /* HAVE_ADS */
1963
1964         if (!r->in.dc_name) {
1965                 struct netr_DsRGetDCNameInfo *info;
1966                 const char *dc;
1967                 status = dsgetdcname(mem_ctx,
1968                                      r->in.msg_ctx,
1969                                      r->in.domain_name,
1970                                      NULL,
1971                                      NULL,
1972                                      DS_FORCE_REDISCOVERY |
1973                                      DS_DIRECTORY_SERVICE_REQUIRED |
1974                                      DS_WRITABLE_REQUIRED |
1975                                      DS_RETURN_DNS_NAME,
1976                                      &info);
1977                 if (!NT_STATUS_IS_OK(status)) {
1978                         libnet_join_set_error_string(mem_ctx, r,
1979                                 "failed to find DC for domain %s",
1980                                 r->in.domain_name,
1981                                 get_friendly_nt_error_msg(status));
1982                         return WERR_DCNOTFOUND;
1983                 }
1984
1985                 dc = strip_hostname(info->dc_unc);
1986                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
1987                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1988         }
1989
1990         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
1991         if (!NT_STATUS_IS_OK(status)) {
1992                 libnet_join_set_error_string(mem_ctx, r,
1993                         "failed to lookup DC info for domain '%s' over rpc: %s",
1994                         r->in.domain_name, get_friendly_nt_error_msg(status));
1995                 return ntstatus_to_werror(status);
1996         }
1997
1998         werr = libnet_join_check_config(mem_ctx, r);
1999         if (!W_ERROR_IS_OK(werr)) {
2000                 goto done;
2001         }
2002
2003 #ifdef HAVE_ADS
2004
2005         create_local_private_krb5_conf_for_domain(
2006                 r->out.dns_domain_name, r->out.netbios_domain_name,
2007                 NULL, &cli->dest_ss, cli->desthost);
2008
2009         if (r->out.domain_is_ad && r->in.account_ou &&
2010             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2011
2012                 ads_status = libnet_join_connect_ads(mem_ctx, r);
2013                 if (!ADS_ERR_OK(ads_status)) {
2014                         return WERR_DEFAULT_JOIN_REQUIRED;
2015                 }
2016
2017                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2018                 if (!ADS_ERR_OK(ads_status)) {
2019                         libnet_join_set_error_string(mem_ctx, r,
2020                                 "failed to precreate account in ou %s: %s",
2021                                 r->in.account_ou,
2022                                 ads_errstr(ads_status));
2023                         return WERR_DEFAULT_JOIN_REQUIRED;
2024                 }
2025
2026                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2027         }
2028 #endif /* HAVE_ADS */
2029
2030         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2031             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2032                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2033         } else {
2034                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2035         }
2036         if (!NT_STATUS_IS_OK(status)) {
2037                 libnet_join_set_error_string(mem_ctx, r,
2038                         "failed to join domain '%s' over rpc: %s",
2039                         r->in.domain_name, get_friendly_nt_error_msg(status));
2040                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2041                         return WERR_SETUP_ALREADY_JOINED;
2042                 }
2043                 werr = ntstatus_to_werror(status);
2044                 goto done;
2045         }
2046
2047         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2048                 werr = WERR_SETUP_NOT_JOINED;
2049                 goto done;
2050         }
2051
2052         werr = WERR_OK;
2053
2054  done:
2055         if (cli) {
2056                 cli_shutdown(cli);
2057         }
2058
2059         return werr;
2060 }
2061
2062 /****************************************************************
2063 ****************************************************************/
2064
2065 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2066                                    struct libnet_JoinCtx *r)
2067 {
2068         WERROR werr;
2069         struct libnet_UnjoinCtx *u = NULL;
2070
2071         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2072         if (!W_ERROR_IS_OK(werr)) {
2073                 return werr;
2074         }
2075
2076         u->in.debug             = r->in.debug;
2077         u->in.dc_name           = r->in.dc_name;
2078         u->in.domain_name       = r->in.domain_name;
2079         u->in.admin_account     = r->in.admin_account;
2080         u->in.admin_password    = r->in.admin_password;
2081         u->in.modify_config     = r->in.modify_config;
2082         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2083                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2084
2085         werr = libnet_Unjoin(mem_ctx, u);
2086         TALLOC_FREE(u);
2087
2088         return werr;
2089 }
2090
2091 /****************************************************************
2092 ****************************************************************/
2093
2094 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2095                    struct libnet_JoinCtx *r)
2096 {
2097         WERROR werr;
2098
2099         if (r->in.debug) {
2100                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2101         }
2102
2103         ZERO_STRUCT(r->out);
2104
2105         werr = libnet_join_pre_processing(mem_ctx, r);
2106         if (!W_ERROR_IS_OK(werr)) {
2107                 goto done;
2108         }
2109
2110         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2111                 werr = libnet_DomainJoin(mem_ctx, r);
2112                 if (!W_ERROR_IS_OK(werr)) {
2113                         goto done;
2114                 }
2115         }
2116
2117         werr = libnet_join_post_processing(mem_ctx, r);
2118         if (!W_ERROR_IS_OK(werr)) {
2119                 goto done;
2120         }
2121
2122         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2123                 werr = libnet_join_post_verify(mem_ctx, r);
2124                 if (!W_ERROR_IS_OK(werr)) {
2125                         libnet_join_rollback(mem_ctx, r);
2126                 }
2127         }
2128
2129  done:
2130         r->out.result = werr;
2131
2132         if (r->in.debug) {
2133                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2134         }
2135         return werr;
2136 }
2137
2138 /****************************************************************
2139 ****************************************************************/
2140
2141 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2142                                   struct libnet_UnjoinCtx *r)
2143 {
2144         NTSTATUS status;
2145
2146         if (!r->in.domain_sid) {
2147                 struct dom_sid sid;
2148                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2149                         libnet_unjoin_set_error_string(mem_ctx, r,
2150                                 "Unable to fetch domain sid: are we joined?");
2151                         return WERR_SETUP_NOT_JOINED;
2152                 }
2153                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2154                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2155         }
2156
2157         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2158             !r->in.delete_machine_account) {
2159                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2160                 return WERR_OK;
2161         }
2162
2163         if (!r->in.dc_name) {
2164                 struct netr_DsRGetDCNameInfo *info;
2165                 const char *dc;
2166                 status = dsgetdcname(mem_ctx,
2167                                      r->in.msg_ctx,
2168                                      r->in.domain_name,
2169                                      NULL,
2170                                      NULL,
2171                                      DS_DIRECTORY_SERVICE_REQUIRED |
2172                                      DS_WRITABLE_REQUIRED |
2173                                      DS_RETURN_DNS_NAME,
2174                                      &info);
2175                 if (!NT_STATUS_IS_OK(status)) {
2176                         libnet_unjoin_set_error_string(mem_ctx, r,
2177                                 "failed to find DC for domain %s",
2178                                 r->in.domain_name,
2179                                 get_friendly_nt_error_msg(status));
2180                         return WERR_DCNOTFOUND;
2181                 }
2182
2183                 dc = strip_hostname(info->dc_unc);
2184                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2185                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2186         }
2187
2188 #ifdef HAVE_ADS
2189         /* for net ads leave, try to delete the account.  If it works,
2190            no sense in disabling.  If it fails, we can still try to
2191            disable it. jmcd */
2192
2193         if (r->in.delete_machine_account) {
2194                 ADS_STATUS ads_status;
2195                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2196                 if (ADS_ERR_OK(ads_status)) {
2197                         /* dirty hack */
2198                         r->out.dns_domain_name =
2199                                 talloc_strdup(mem_ctx,
2200                                               r->in.ads->server.realm);
2201                         ads_status =
2202                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2203                 }
2204                 if (!ADS_ERR_OK(ads_status)) {
2205                         libnet_unjoin_set_error_string(mem_ctx, r,
2206                                 "failed to remove machine account from AD: %s",
2207                                 ads_errstr(ads_status));
2208                 } else {
2209                         r->out.deleted_machine_account = true;
2210                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2211                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2212                         return WERR_OK;
2213                 }
2214         }
2215 #endif /* HAVE_ADS */
2216
2217         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2218            "disable".  */
2219         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2220                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2221                 if (!NT_STATUS_IS_OK(status)) {
2222                         libnet_unjoin_set_error_string(mem_ctx, r,
2223                                 "failed to disable machine account via rpc: %s",
2224                                 get_friendly_nt_error_msg(status));
2225                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2226                                 return WERR_SETUP_NOT_JOINED;
2227                         }
2228                         return ntstatus_to_werror(status);
2229                 }
2230
2231                 r->out.disabled_machine_account = true;
2232         }
2233
2234         /* If disable succeeded or was not requested at all, we
2235            should be getting rid of our end of things */
2236
2237         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2238
2239         return WERR_OK;
2240 }
2241
2242 /****************************************************************
2243 ****************************************************************/
2244
2245 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2246                                            struct libnet_UnjoinCtx *r)
2247 {
2248         if (!r->in.domain_name) {
2249                 libnet_unjoin_set_error_string(mem_ctx, r,
2250                         "No domain name defined");
2251                 return WERR_INVALID_PARAM;
2252         }
2253
2254         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2255                                     &r->in.domain_name,
2256                                     &r->in.dc_name)) {
2257                 libnet_unjoin_set_error_string(mem_ctx, r,
2258                         "Failed to parse domain name");
2259                 return WERR_INVALID_PARAM;
2260         }
2261
2262         if (IS_DC) {
2263                 return WERR_SETUP_DOMAIN_CONTROLLER;
2264         }
2265
2266         if (!secrets_init()) {
2267                 libnet_unjoin_set_error_string(mem_ctx, r,
2268                         "Unable to open secrets database");
2269                 return WERR_CAN_NOT_COMPLETE;
2270         }
2271
2272         return WERR_OK;
2273 }
2274
2275 /****************************************************************
2276 ****************************************************************/
2277
2278 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2279                                             struct libnet_UnjoinCtx *r)
2280 {
2281         saf_delete(r->out.netbios_domain_name);
2282         saf_delete(r->out.dns_domain_name);
2283
2284         return libnet_unjoin_config(r);
2285 }
2286
2287 /****************************************************************
2288 ****************************************************************/
2289
2290 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2291                      struct libnet_UnjoinCtx *r)
2292 {
2293         WERROR werr;
2294
2295         if (r->in.debug) {
2296                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2297         }
2298
2299         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2300         if (!W_ERROR_IS_OK(werr)) {
2301                 goto done;
2302         }
2303
2304         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2305                 werr = libnet_DomainUnjoin(mem_ctx, r);
2306                 if (!W_ERROR_IS_OK(werr)) {
2307                         libnet_unjoin_config(r);
2308                         goto done;
2309                 }
2310         }
2311
2312         werr = libnet_unjoin_post_processing(mem_ctx, r);
2313         if (!W_ERROR_IS_OK(werr)) {
2314                 goto done;
2315         }
2316
2317  done:
2318         r->out.result = werr;
2319
2320         if (r->in.debug) {
2321                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2322         }
2323
2324         return werr;
2325 }