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 "libnet/libnet.h"
  23
  24 /****************************************************************
  25 ****************************************************************/
  26
  27 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  28         do { \
  29                 char *str = NULL; \
  30                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  31                 DEBUG(1,("libnet_Join:\n%s", str)); \
  32                 TALLOC_FREE(str); \
  33         } while (0)
  34
  35 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  36         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  37 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  38         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  39
  40 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  41         do { \
  42                 char *str = NULL; \
  43                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  44                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  45                 TALLOC_FREE(str); \
  46         } while (0)
  47
  48 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  49         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  50 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  51         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  52
  53 #define W_ERROR_NOT_OK_GOTO_DONE(x) do { \
  54         if (!W_ERROR_IS_OK(x)) {\
  55                 goto done;\
  56         }\
  57 } while (0)
  58
  59 /****************************************************************
  60 ****************************************************************/
  61
  62 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  63                                          struct libnet_JoinCtx *r,
  64                                          const char *format, ...)
  65 {
  66         va_list args;
  67
  68         if (r->out.error_string) {
  69                 return;
  70         }
  71
  72         va_start(args, format);
  73         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  74         va_end(args);
  75 }
  76
  77 /****************************************************************
  78 ****************************************************************/
  79
  80 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  81                                            struct libnet_UnjoinCtx *r,
  82                                            const char *format, ...)
  83 {
  84         va_list args;
  85
  86         if (r->out.error_string) {
  87                 return;
  88         }
  89
  90         va_start(args, format);
  91         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  92         va_end(args);
  93 }
  94
  95 #ifdef WITH_ADS
  96
  97 /****************************************************************
  98 ****************************************************************/
  99
 100 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 101                                      const char *netbios_domain_name,
 102                                      const char *dc_name,
 103                                      const char *user_name,
 104                                      const char *password,
 105                                      ADS_STRUCT **ads)
 106 {
 107         ADS_STATUS status;
 108         ADS_STRUCT *my_ads = NULL;
 109
 110         my_ads = ads_init(dns_domain_name,
 111                           netbios_domain_name,
 112                           dc_name);
 113         if (!my_ads) {
 114                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 115         }
 116
 117         if (user_name) {
 118                 SAFE_FREE(my_ads->auth.user_name);
 119                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 120         }
 121
 122         if (password) {
 123                 SAFE_FREE(my_ads->auth.password);
 124                 my_ads->auth.password = SMB_STRDUP(password);
 125         }
 126
 127         status = ads_connect(my_ads);
 128         if (!ADS_ERR_OK(status)) {
 129                 ads_destroy(&my_ads);
 130                 return status;
 131         }
 132
 133         *ads = my_ads;
 134         return ADS_SUCCESS;
 135 }
 136
 137 /****************************************************************
 138 ****************************************************************/
 139
 140 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 141                                           struct libnet_JoinCtx *r)
 142 {
 143         ADS_STATUS status;
 144
 145         status = libnet_connect_ads(r->in.domain_name,
 146                                     r->in.domain_name,
 147                                     r->in.dc_name,
 148                                     r->in.admin_account,
 149                                     r->in.admin_password,
 150                                     &r->in.ads);
 151         if (!ADS_ERR_OK(status)) {
 152                 libnet_join_set_error_string(mem_ctx, r,
 153                         "failed to connect to AD: %s",
 154                         ads_errstr(status));
 155                 return status;
 156         }
 157
 158         if (!r->out.netbios_domain_name) {
 159                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 160                                                            r->in.ads->server.workgroup);
 161                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 162         }
 163
 164         if (!r->out.dns_domain_name) {
 165                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 166                                                        r->in.ads->config.realm);
 167                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 168         }
 169
 170         r->out.domain_is_ad = true;
 171
 172         return ADS_SUCCESS;
 173 }
 174
 175 /****************************************************************
 176 ****************************************************************/
 177
 178 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 179                                             struct libnet_UnjoinCtx *r)
 180 {
 181         ADS_STATUS status;
 182
 183         status = libnet_connect_ads(r->in.domain_name,
 184                                     r->in.domain_name,
 185                                     r->in.dc_name,
 186                                     r->in.admin_account,
 187                                     r->in.admin_password,
 188                                     &r->in.ads);
 189         if (!ADS_ERR_OK(status)) {
 190                 libnet_unjoin_set_error_string(mem_ctx, r,
 191                         "failed to connect to AD: %s",
 192                         ads_errstr(status));
 193         }
 194
 195         return status;
 196 }
 197
 198 /****************************************************************
 199  join a domain using ADS (LDAP mods)
 200 ****************************************************************/
 201
 202 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 203                                                      struct libnet_JoinCtx *r)
 204 {
 205         ADS_STATUS status;
 206         LDAPMessage *res = NULL;
 207         const char *attrs[] = { "dn", NULL };
 208         bool moved = false;
 209
 210         status = ads_check_ou_dn(mem_ctx, r->in.ads, r->in.account_ou);
 211         if (!ADS_ERR_OK(status)) {
 212                 return status;
 213         }
 214
 215         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 216         if (!ADS_ERR_OK(status)) {
 217                 return status;
 218         }
 219
 220         if (ads_count_replies(r->in.ads, res) != 1) {
 221                 ads_msgfree(r->in.ads, res);
 222                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 223         }
 224
 225         ads_msgfree(r->in.ads, res);
 226
 227         /* Attempt to create the machine account and bail if this fails.
 228            Assume that the admin wants exactly what they requested */
 229
 230         status = ads_create_machine_acct(r->in.ads,
 231                                          r->in.machine_name,
 232                                          r->in.account_ou);
 233
 234         if (ADS_ERR_OK(status)) {
 235                 DEBUG(1,("machine account creation created\n"));
 236                 return status;
 237         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 238                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 239                 status = ADS_SUCCESS;
 240         }
 241
 242         if (!ADS_ERR_OK(status)) {
 243                 DEBUG(1,("machine account creation failed\n"));
 244                 return status;
 245         }
 246
 247         status = ads_move_machine_acct(r->in.ads,
 248                                        r->in.machine_name,
 249                                        r->in.account_ou,
 250                                        &moved);
 251         if (!ADS_ERR_OK(status)) {
 252                 DEBUG(1,("failure to locate/move pre-existing "
 253                         "machine account\n"));
 254                 return status;
 255         }
 256
 257         DEBUG(1,("The machine account %s the specified OU.\n",
 258                 moved ? "was moved into" : "already exists in"));
 259
 260         return status;
 261 }
 262
 263 /****************************************************************
 264 ****************************************************************/
 265
 266 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 267                                                     struct libnet_UnjoinCtx *r)
 268 {
 269         ADS_STATUS status;
 270
 271         if (!r->in.ads) {
 272                 return libnet_unjoin_connect_ads(mem_ctx, r);
 273         }
 274
 275         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 276         if (!ADS_ERR_OK(status)) {
 277                 libnet_unjoin_set_error_string(mem_ctx, r,
 278                         "failed to leave realm: %s",
 279                         ads_errstr(status));
 280                 return status;
 281         }
 282
 283         return ADS_SUCCESS;
 284 }
 285
 286 /****************************************************************
 287 ****************************************************************/
 288
 289 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 290                                                 struct libnet_JoinCtx *r)
 291 {
 292         ADS_STATUS status;
 293         LDAPMessage *res = NULL;
 294         char *dn = NULL;
 295
 296         if (!r->in.machine_name) {
 297                 return ADS_ERROR(LDAP_NO_MEMORY);
 298         }
 299
 300         status = ads_find_machine_acct(r->in.ads,
 301                                        &res,
 302                                        r->in.machine_name);
 303         if (!ADS_ERR_OK(status)) {
 304                 return status;
 305         }
 306
 307         if (ads_count_replies(r->in.ads, res) != 1) {
 308                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 309                 goto done;
 310         }
 311
 312         dn = ads_get_dn(r->in.ads, res);
 313         if (!dn) {
 314                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 315                 goto done;
 316         }
 317
 318         r->out.dn = talloc_strdup(mem_ctx, dn);
 319         if (!r->out.dn) {
 320                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 321                 goto done;
 322         }
 323
 324  done:
 325         ads_msgfree(r->in.ads, res);
 326         ads_memfree(r->in.ads, dn);
 327
 328         return status;
 329 }
 330
 331 /****************************************************************
 332  Set a machines dNSHostName and servicePrincipalName attributes
 333 ****************************************************************/
 334
 335 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 336                                               struct libnet_JoinCtx *r)
 337 {
 338         ADS_STATUS status;
 339         ADS_MODLIST mods;
 340         fstring my_fqdn;
 341         const char *spn_array[3] = {NULL, NULL, NULL};
 342         char *spn = NULL;
 343
 344         /* Find our DN */
 345
 346         status = libnet_join_find_machine_acct(mem_ctx, r);
 347         if (!ADS_ERR_OK(status)) {
 348                 return status;
 349         }
 350
 351         /* Windows only creates HOST/shortname & HOST/fqdn. */
 352
 353         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 354         if (!spn) {
 355                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 356         }
 357         strupper_m(spn);
 358         spn_array[0] = spn;
 359
 360         if (name_to_fqdn(my_fqdn, r->in.machine_name) &&
 361             !strequal(my_fqdn, r->in.machine_name)) {
 362
 363                 strlower_m(my_fqdn);
 364                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 365                 if (!spn) {
 366                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 367                 }
 368                 spn_array[1] = spn;
 369         }
 370
 371         mods = ads_init_mods(mem_ctx);
 372         if (!mods) {
 373                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 374         }
 375
 376         /* fields of primary importance */
 377
 378         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 379         if (!ADS_ERR_OK(status)) {
 380                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 381         }
 382
 383         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 384                                  spn_array);
 385         if (!ADS_ERR_OK(status)) {
 386                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 387         }
 388
 389         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 390 }
 391
 392 /****************************************************************
 393 ****************************************************************/
 394
 395 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 396                                               struct libnet_JoinCtx *r)
 397 {
 398         ADS_STATUS status;
 399         ADS_MODLIST mods;
 400
 401         if (!r->in.create_upn) {
 402                 return ADS_SUCCESS;
 403         }
 404
 405         /* Find our DN */
 406
 407         status = libnet_join_find_machine_acct(mem_ctx, r);
 408         if (!ADS_ERR_OK(status)) {
 409                 return status;
 410         }
 411
 412         if (!r->in.upn) {
 413                 r->in.upn = talloc_asprintf(mem_ctx,
 414                                             "host/%s@%s",
 415                                             r->in.machine_name,
 416                                             r->out.dns_domain_name);
 417                 if (!r->in.upn) {
 418                         return ADS_ERROR(LDAP_NO_MEMORY);
 419                 }
 420         }
 421
 422         /* now do the mods */
 423
 424         mods = ads_init_mods(mem_ctx);
 425         if (!mods) {
 426                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 427         }
 428
 429         /* fields of primary importance */
 430
 431         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 432         if (!ADS_ERR_OK(status)) {
 433                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 434         }
 435
 436         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 437 }
 438
 439
 440 /****************************************************************
 441 ****************************************************************/
 442
 443 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 444                                                 struct libnet_JoinCtx *r)
 445 {
 446         ADS_STATUS status;
 447         ADS_MODLIST mods;
 448         char *os_sp = NULL;
 449
 450         if (!r->in.os_name || !r->in.os_version ) {
 451                 return ADS_SUCCESS;
 452         }
 453
 454         /* Find our DN */
 455
 456         status = libnet_join_find_machine_acct(mem_ctx, r);
 457         if (!ADS_ERR_OK(status)) {
 458                 return status;
 459         }
 460
 461         /* now do the mods */
 462
 463         mods = ads_init_mods(mem_ctx);
 464         if (!mods) {
 465                 return ADS_ERROR(LDAP_NO_MEMORY);
 466         }
 467
 468         os_sp = talloc_asprintf(mem_ctx, "Samba %s", SAMBA_VERSION_STRING);
 469         if (!os_sp) {
 470                 return ADS_ERROR(LDAP_NO_MEMORY);
 471         }
 472
 473         /* fields of primary importance */
 474
 475         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 476                              r->in.os_name);
 477         if (!ADS_ERR_OK(status)) {
 478                 return status;
 479         }
 480
 481         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 482                              r->in.os_version);
 483         if (!ADS_ERR_OK(status)) {
 484                 return status;
 485         }
 486
 487         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 488                              os_sp);
 489         if (!ADS_ERR_OK(status)) {
 490                 return status;
 491         }
 492
 493         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 494 }
 495
 496 /****************************************************************
 497 ****************************************************************/
 498
 499 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 500                                       struct libnet_JoinCtx *r)
 501 {
 502         if (!lp_use_kerberos_keytab()) {
 503                 return true;
 504         }
 505
 506         if (!ads_keytab_create_default(r->in.ads)) {
 507                 return false;
 508         }
 509
 510         return true;
 511 }
 512
 513 /****************************************************************
 514 ****************************************************************/
 515
 516 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 517                                                  struct libnet_JoinCtx *r)
 518 {
 519         uint32_t domain_func;
 520         ADS_STATUS status;
 521         const char *salt = NULL;
 522         char *std_salt = NULL;
 523
 524         status = ads_domain_func_level(r->in.ads, &domain_func);
 525         if (!ADS_ERR_OK(status)) {
 526                 libnet_join_set_error_string(mem_ctx, r,
 527                         "failed to determine domain functional level: %s",
 528                         ads_errstr(status));
 529                 return false;
 530         }
 531
 532         /* go ahead and setup the default salt */
 533
 534         std_salt = kerberos_standard_des_salt();
 535         if (!std_salt) {
 536                 libnet_join_set_error_string(mem_ctx, r,
 537                         "failed to obtain standard DES salt");
 538                 return false;
 539         }
 540
 541         salt = talloc_strdup(mem_ctx, std_salt);
 542         if (!salt) {
 543                 return false;
 544         }
 545
 546         SAFE_FREE(std_salt);
 547
 548         /* if it's a Windows functional domain, we have to look for the UPN */
 549
 550         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 551                 char *upn;
 552
 553                 upn = ads_get_upn(r->in.ads, mem_ctx,
 554                                   r->in.machine_name);
 555                 if (upn) {
 556                         salt = talloc_strdup(mem_ctx, upn);
 557                         if (!salt) {
 558                                 return false;
 559                         }
 560                 }
 561         }
 562
 563         return kerberos_secrets_store_des_salt(salt);
 564 }
 565
 566 /****************************************************************
 567 ****************************************************************/
 568
 569 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 570                                                   struct libnet_JoinCtx *r)
 571 {
 572         ADS_STATUS status;
 573
 574         if (!r->in.ads) {
 575                 status = libnet_join_connect_ads(mem_ctx, r);
 576                 if (!ADS_ERR_OK(status)) {
 577                         return status;
 578                 }
 579         }
 580
 581         status = libnet_join_set_machine_spn(mem_ctx, r);
 582         if (!ADS_ERR_OK(status)) {
 583                 libnet_join_set_error_string(mem_ctx, r,
 584                         "failed to set machine spn: %s",
 585                         ads_errstr(status));
 586                 return status;
 587         }
 588
 589         status = libnet_join_set_os_attributes(mem_ctx, r);
 590         if (!ADS_ERR_OK(status)) {
 591                 libnet_join_set_error_string(mem_ctx, r,
 592                         "failed to set machine os attributes: %s",
 593                         ads_errstr(status));
 594                 return status;
 595         }
 596
 597         status = libnet_join_set_machine_upn(mem_ctx, r);
 598         if (!ADS_ERR_OK(status)) {
 599                 libnet_join_set_error_string(mem_ctx, r,
 600                         "failed to set machine upn: %s",
 601                         ads_errstr(status));
 602                 return status;
 603         }
 604
 605         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 606                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 607         }
 608
 609         if (!libnet_join_create_keytab(mem_ctx, r)) {
 610                 libnet_join_set_error_string(mem_ctx, r,
 611                         "failed to create kerberos keytab");
 612                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 613         }
 614
 615         return ADS_SUCCESS;
 616 }
 617 #endif /* WITH_ADS */
 618
 619 /****************************************************************
 620  Store the machine password and domain SID
 621 ****************************************************************/
 622
 623 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 624                                                  struct libnet_JoinCtx *r)
 625 {
 626         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 627                                       r->out.domain_sid))
 628         {
 629                 DEBUG(1,("Failed to save domain sid\n"));
 630                 return false;
 631         }
 632
 633         if (!secrets_store_machine_password(r->in.machine_password,
 634                                             r->out.netbios_domain_name,
 635                                             r->in.secure_channel_type))
 636         {
 637                 DEBUG(1,("Failed to save machine password\n"));
 638                 return false;
 639         }
 640
 641         return true;
 642 }
 643
 644 /****************************************************************
 645  Do the domain join
 646 ****************************************************************/
 647
 648 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 649                                            struct libnet_JoinCtx *r)
 650 {
 651         struct cli_state *cli = NULL;
 652         struct rpc_pipe_client *pipe_hnd = NULL;
 653         POLICY_HND sam_pol, domain_pol, user_pol, lsa_pol;
 654         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 655         char *acct_name;
 656         struct lsa_String lsa_acct_name;
 657         uint32_t user_rid;
 658         uint32_t acct_flags = ACB_WSTRUST;
 659         uchar pwbuf[532];
 660         struct MD5Context md5ctx;
 661         uchar md5buffer[16];
 662         DATA_BLOB digested_session_key;
 663         uchar md4_trust_password[16];
 664         union lsa_PolicyInformation *info = NULL;
 665         struct samr_Ids user_rids;
 666         struct samr_Ids name_types;
 667         union samr_UserInfo user_info;
 668
 669         if (!r->in.machine_password) {
 670                 r->in.machine_password = talloc_strdup(mem_ctx, generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH));
 671                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
 672         }
 673
 674         status = cli_full_connection(&cli, NULL,
 675                                      r->in.dc_name,
 676                                      NULL, 0,
 677                                      "IPC$", "IPC",
 678                                      r->in.admin_account,
 679                                      NULL,
 680                                      r->in.admin_password,
 681                                      0,
 682                                      Undefined, NULL);
 683
 684         if (!NT_STATUS_IS_OK(status)) {
 685                 goto done;
 686         }
 687
 688         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
 689         if (!pipe_hnd) {
 690                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 691                         nt_errstr(status)));
 692                 goto done;
 693         }
 694
 695         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 696                                         SEC_RIGHTS_MAXIMUM_ALLOWED, &lsa_pol);
 697         if (!NT_STATUS_IS_OK(status)) {
 698                 goto done;
 699         }
 700
 701         status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
 702                                              &lsa_pol,
 703                                              LSA_POLICY_INFO_DNS,
 704                                              &info);
 705         if (NT_STATUS_IS_OK(status)) {
 706                 r->out.domain_is_ad = true;
 707                 r->out.netbios_domain_name = info->dns.name.string;
 708                 r->out.dns_domain_name = info->dns.dns_domain.string;
 709                 r->out.domain_sid = info->dns.sid;
 710         }
 711
 712         if (!NT_STATUS_IS_OK(status)) {
 713                 status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
 714                                                     &lsa_pol,
 715                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 716                                                     &info);
 717                 if (!NT_STATUS_IS_OK(status)) {
 718                         goto done;
 719                 }
 720
 721                 r->out.netbios_domain_name = info->account_domain.name.string;
 722                 r->out.domain_sid = info->account_domain.sid;
 723         }
 724
 725         rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
 726         cli_rpc_pipe_close(pipe_hnd);
 727
 728         /* Open the domain */
 729
 730         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
 731         if (!pipe_hnd) {
 732                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
 733                         nt_errstr(status)));
 734                 goto done;
 735         }
 736
 737         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
 738                                       pipe_hnd->cli->desthost,
 739                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 740                                       &sam_pol);
 741         if (!NT_STATUS_IS_OK(status)) {
 742                 goto done;
 743         }
 744
 745         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
 746                                         &sam_pol,
 747                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
 748                                         r->out.domain_sid,
 749                                         &domain_pol);
 750         if (!NT_STATUS_IS_OK(status)) {
 751                 goto done;
 752         }
 753
 754         /* Create domain user */
 755
 756         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
 757         strlower_m(acct_name);
 758
 759         init_lsa_String(&lsa_acct_name, acct_name);
 760
 761         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
 762                 uint32_t access_desired =
 763                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
 764                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
 765                         SAMR_USER_ACCESS_SET_PASSWORD |
 766                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
 767                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
 768                 uint32_t access_granted = 0;
 769
 770                 /* Don't try to set any acct_flags flags other than ACB_WSTRUST */
 771
 772                 DEBUG(10,("Creating account with desired access mask: %d\n",
 773                         access_desired));
 774
 775                 status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
 776                                                  &domain_pol,
 777                                                  &lsa_acct_name,
 778                                                  ACB_WSTRUST,
 779                                                  access_desired,
 780                                                  &user_pol,
 781                                                  &access_granted,
 782                                                  &user_rid);
 783                 if (!NT_STATUS_IS_OK(status) &&
 784                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 785
 786                         DEBUG(10,("Creation of workstation account failed: %s\n",
 787                                 nt_errstr(status)));
 788
 789                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
 790                            username/password combo but the user does not have
 791                            administrator access. */
 792
 793                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
 794                                 libnet_join_set_error_string(mem_ctx, r,
 795                                         "User specified does not have "
 796                                         "administrator privileges");
 797                         }
 798
 799                         return status;
 800                 }
 801
 802                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 803                         if (!(r->in.join_flags &
 804                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
 805                                 goto done;
 806                         }
 807                 }
 808
 809                 /* We *must* do this.... don't ask... */
 810
 811                 if (NT_STATUS_IS_OK(status)) {
 812                         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 813                 }
 814         }
 815
 816         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
 817                                          &domain_pol,
 818                                          1,
 819                                          &lsa_acct_name,
 820                                          &user_rids,
 821                                          &name_types);
 822         if (!NT_STATUS_IS_OK(status)) {
 823                 goto done;
 824         }
 825
 826         if (name_types.ids[0] != SID_NAME_USER) {
 827                 DEBUG(0,("%s is not a user account (type=%d)\n",
 828                         acct_name, name_types.ids[0]));
 829                 status = NT_STATUS_INVALID_WORKSTATION;
 830                 goto done;
 831         }
 832
 833         user_rid = user_rids.ids[0];
 834
 835         /* Open handle on user */
 836
 837         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
 838                                       &domain_pol,
 839                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
 840                                       user_rid,
 841                                       &user_pol);
 842         if (!NT_STATUS_IS_OK(status)) {
 843                 goto done;
 844         }
 845
 846         /* Create a random machine account password and generate the hash */
 847
 848         E_md4hash(r->in.machine_password, md4_trust_password);
 849         encode_pw_buffer(pwbuf, r->in.machine_password, STR_UNICODE);
 850
 851         generate_random_buffer((uint8_t*)md5buffer, sizeof(md5buffer));
 852         digested_session_key = data_blob_talloc(mem_ctx, 0, 16);
 853
 854         MD5Init(&md5ctx);
 855         MD5Update(&md5ctx, md5buffer, sizeof(md5buffer));
 856         MD5Update(&md5ctx, cli->user_session_key.data,
 857                   cli->user_session_key.length);
 858         MD5Final(digested_session_key.data, &md5ctx);
 859
 860         SamOEMhashBlob(pwbuf, sizeof(pwbuf), &digested_session_key);
 861         memcpy(&pwbuf[516], md5buffer, sizeof(md5buffer));
 862
 863         /* Fill in the additional account flags now */
 864
 865         acct_flags |= ACB_PWNOEXP;
 866         if (r->out.domain_is_ad) {
 867 #if !defined(ENCTYPE_ARCFOUR_HMAC)
 868                 acct_flags |= ACB_USE_DES_KEY_ONLY;
 869 #endif
 870                 ;;
 871         }
 872
 873         /* Set password and account flags on machine account */
 874
 875         ZERO_STRUCT(user_info.info25);
 876
 877         user_info.info25.info.fields_present = ACCT_NT_PWD_SET |
 878                                                ACCT_LM_PWD_SET |
 879                                                SAMR_FIELD_ACCT_FLAGS;
 880
 881         user_info.info25.info.acct_flags = acct_flags;
 882         memcpy(&user_info.info25.password.data, pwbuf, sizeof(pwbuf));
 883
 884         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
 885                                          &user_pol,
 886                                          25,
 887                                          &user_info);
 888
 889         if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
 890
 891                 uchar pwbuf2[516];
 892
 893                 encode_pw_buffer(pwbuf2, r->in.machine_password, STR_UNICODE);
 894
 895                 /* retry with level 24 */
 896                 init_samr_user_info24(&user_info.info24, pwbuf2, 24);
 897
 898                 SamOEMhashBlob(user_info.info24.password.data, 516,
 899                                &cli->user_session_key);
 900
 901                 status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
 902                                                   &user_pol,
 903                                                   24,
 904                                                   &user_info);
 905         }
 906
 907         if (!NT_STATUS_IS_OK(status)) {
 908
 909                 rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
 910                                        &user_pol);
 911
 912                 libnet_join_set_error_string(mem_ctx, r,
 913                         "Failed to set password for machine account (%s)\n",
 914                         nt_errstr(status));
 915                 goto done;
 916         }
 917
 918         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
 919         cli_rpc_pipe_close(pipe_hnd);
 920
 921         status = NT_STATUS_OK;
 922  done:
 923         if (cli) {
 924                 cli_shutdown(cli);
 925         }
 926
 927         return status;
 928 }
 929
 930 /****************************************************************
 931 ****************************************************************/
 932
 933 NTSTATUS libnet_join_ok(const char *netbios_domain_name,
 934                         const char *machine_name,
 935                         const char *dc_name)
 936 {
 937         uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
 938         struct cli_state *cli = NULL;
 939         struct rpc_pipe_client *pipe_hnd = NULL;
 940         struct rpc_pipe_client *netlogon_pipe = NULL;
 941         NTSTATUS status;
 942         char *machine_password = NULL;
 943         char *machine_account = NULL;
 944
 945         if (!dc_name) {
 946                 return NT_STATUS_INVALID_PARAMETER;
 947         }
 948
 949         if (!secrets_init()) {
 950                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 951         }
 952
 953         machine_password = secrets_fetch_machine_password(netbios_domain_name,
 954                                                           NULL, NULL);
 955         if (!machine_password) {
 956                 return NT_STATUS_NO_TRUST_LSA_SECRET;
 957         }
 958
 959         asprintf(&machine_account, "%s$", machine_name);
 960         if (!machine_account) {
 961                 SAFE_FREE(machine_password);
 962                 return NT_STATUS_NO_MEMORY;
 963         }
 964
 965         status = cli_full_connection(&cli, NULL,
 966                                      dc_name,
 967                                      NULL, 0,
 968                                      "IPC$", "IPC",
 969                                      machine_account,
 970                                      NULL,
 971                                      machine_password,
 972                                      0,
 973                                      Undefined, NULL);
 974         free(machine_account);
 975         free(machine_password);
 976
 977         if (!NT_STATUS_IS_OK(status)) {
 978                 status = cli_full_connection(&cli, NULL,
 979                                              dc_name,
 980                                              NULL, 0,
 981                                              "IPC$", "IPC",
 982                                              "",
 983                                              NULL,
 984                                              "",
 985                                              0,
 986                                              Undefined, NULL);
 987         }
 988
 989         if (!NT_STATUS_IS_OK(status)) {
 990                 return status;
 991         }
 992
 993         netlogon_pipe = get_schannel_session_key(cli,
 994                                                  netbios_domain_name,
 995                                                  &neg_flags, &status);
 996         if (!netlogon_pipe) {
 997                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
 998                         cli_shutdown(cli);
 999                         return NT_STATUS_OK;
1000                 }
1001
1002                 DEBUG(0,("libnet_join_ok: failed to get schannel session "
1003                         "key from server %s for domain %s. Error was %s\n",
1004                 cli->desthost, netbios_domain_name, nt_errstr(status)));
1005                 cli_shutdown(cli);
1006                 return status;
1007         }
1008
1009         if (!lp_client_schannel()) {
1010                 cli_shutdown(cli);
1011                 return NT_STATUS_OK;
1012         }
1013
1014         pipe_hnd = cli_rpc_pipe_open_schannel_with_key(cli, PI_NETLOGON,
1015                                                        PIPE_AUTH_LEVEL_PRIVACY,
1016                                                        netbios_domain_name,
1017                                                        netlogon_pipe->dc,
1018                                                        &status);
1019
1020         cli_shutdown(cli);
1021
1022         if (!pipe_hnd) {
1023                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1024                         "on netlogon pipe to server %s for domain %s. "
1025                         "Error was %s\n",
1026                         cli->desthost, netbios_domain_name, nt_errstr(status)));
1027                 return status;
1028         }
1029
1030         return NT_STATUS_OK;
1031 }
1032
1033 /****************************************************************
1034 ****************************************************************/
1035
1036 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1037                                       struct libnet_JoinCtx *r)
1038 {
1039         NTSTATUS status;
1040
1041         status = libnet_join_ok(r->out.netbios_domain_name,
1042                                 r->in.machine_name,
1043                                 r->in.dc_name);
1044         if (!NT_STATUS_IS_OK(status)) {
1045                 libnet_join_set_error_string(mem_ctx, r,
1046                         "failed to verify domain membership after joining: %s",
1047                         get_friendly_nt_error_msg(status));
1048                 return WERR_SETUP_NOT_JOINED;
1049         }
1050
1051         return WERR_OK;
1052 }
1053
1054 /****************************************************************
1055 ****************************************************************/
1056
1057 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1058                                                     struct libnet_UnjoinCtx *r)
1059 {
1060         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1061                 return false;
1062         }
1063
1064         if (!secrets_delete_domain_sid(lp_workgroup())) {
1065                 return false;
1066         }
1067
1068         return true;
1069 }
1070
1071 /****************************************************************
1072 ****************************************************************/
1073
1074 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1075                                              struct libnet_UnjoinCtx *r)
1076 {
1077         struct cli_state *cli = NULL;
1078         struct rpc_pipe_client *pipe_hnd = NULL;
1079         POLICY_HND sam_pol, domain_pol, user_pol;
1080         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1081         char *acct_name;
1082         uint32_t user_rid;
1083         struct lsa_String lsa_acct_name;
1084         struct samr_Ids user_rids;
1085         struct samr_Ids name_types;
1086         union samr_UserInfo *info = NULL;
1087
1088         status = cli_full_connection(&cli, NULL,
1089                                      r->in.dc_name,
1090                                      NULL, 0,
1091                                      "IPC$", "IPC",
1092                                      r->in.admin_account,
1093                                      NULL,
1094                                      r->in.admin_password,
1095                                      0, Undefined, NULL);
1096
1097         if (!NT_STATUS_IS_OK(status)) {
1098                 goto done;
1099         }
1100
1101         /* Open the domain */
1102
1103         pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &status);
1104         if (!pipe_hnd) {
1105                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1106                         nt_errstr(status)));
1107                 goto done;
1108         }
1109
1110         status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
1111                                       pipe_hnd->cli->desthost,
1112                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1113                                       &sam_pol);
1114         if (!NT_STATUS_IS_OK(status)) {
1115                 goto done;
1116         }
1117
1118         status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
1119                                         &sam_pol,
1120                                         SEC_RIGHTS_MAXIMUM_ALLOWED,
1121                                         r->in.domain_sid,
1122                                         &domain_pol);
1123         if (!NT_STATUS_IS_OK(status)) {
1124                 goto done;
1125         }
1126
1127         /* Create domain user */
1128
1129         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1130         strlower_m(acct_name);
1131
1132         init_lsa_String(&lsa_acct_name, acct_name);
1133
1134         status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
1135                                          &domain_pol,
1136                                          1,
1137                                          &lsa_acct_name,
1138                                          &user_rids,
1139                                          &name_types);
1140
1141         if (!NT_STATUS_IS_OK(status)) {
1142                 goto done;
1143         }
1144
1145         if (name_types.ids[0] != SID_NAME_USER) {
1146                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1147                         name_types.ids[0]));
1148                 status = NT_STATUS_INVALID_WORKSTATION;
1149                 goto done;
1150         }
1151
1152         user_rid = user_rids.ids[0];
1153
1154         /* Open handle on user */
1155
1156         status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
1157                                       &domain_pol,
1158                                       SEC_RIGHTS_MAXIMUM_ALLOWED,
1159                                       user_rid,
1160                                       &user_pol);
1161         if (!NT_STATUS_IS_OK(status)) {
1162                 goto done;
1163         }
1164
1165         /* Get user info */
1166
1167         status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
1168                                            &user_pol,
1169                                            16,
1170                                            &info);
1171         if (!NT_STATUS_IS_OK(status)) {
1172                 rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1173                 goto done;
1174         }
1175
1176         /* now disable and setuser info */
1177
1178         info->info16.acct_flags |= ACB_DISABLED;
1179
1180         status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
1181                                          &user_pol,
1182                                          16,
1183                                          info);
1184
1185         rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
1186
1187 done:
1188         if (pipe_hnd) {
1189                 rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
1190                 rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
1191                 cli_rpc_pipe_close(pipe_hnd);
1192         }
1193
1194         if (cli) {
1195                 cli_shutdown(cli);
1196         }
1197
1198         return status;
1199 }
1200
1201 /****************************************************************
1202 ****************************************************************/
1203
1204 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1205 {
1206         WERROR werr;
1207         struct smbconf_ctx *ctx;
1208
1209         werr = smbconf_init_reg(r, &ctx, NULL);
1210         if (!W_ERROR_IS_OK(werr)) {
1211                 goto done;
1212         }
1213
1214         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1215
1216                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1217                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1218
1219                 werr = smbconf_set_global_parameter(ctx, "workgroup",
1220                                                     r->in.domain_name);
1221                 goto done;
1222         }
1223
1224         werr = smbconf_set_global_parameter(ctx, "security", "domain");
1225         W_ERROR_NOT_OK_GOTO_DONE(werr);
1226
1227         werr = smbconf_set_global_parameter(ctx, "workgroup",
1228                                             r->out.netbios_domain_name);
1229         W_ERROR_NOT_OK_GOTO_DONE(werr);
1230
1231         if (r->out.domain_is_ad) {
1232                 werr = smbconf_set_global_parameter(ctx, "security", "ads");
1233                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1234
1235                 werr = smbconf_set_global_parameter(ctx, "realm",
1236                                                     r->out.dns_domain_name);
1237                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1238         }
1239
1240  done:
1241         smbconf_shutdown(ctx);
1242         return werr;
1243 }
1244
1245 /****************************************************************
1246 ****************************************************************/
1247
1248 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1249 {
1250         WERROR werr = WERR_OK;
1251         struct smbconf_ctx *ctx;
1252
1253         werr = smbconf_init_reg(r, &ctx, NULL);
1254         if (!W_ERROR_IS_OK(werr)) {
1255                 goto done;
1256         }
1257
1258         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1259
1260                 werr = smbconf_set_global_parameter(ctx, "security", "user");
1261                 W_ERROR_NOT_OK_GOTO_DONE(werr);
1262                 smbconf_delete_global_parameter(ctx, "realm");
1263         }
1264
1265  done:
1266         smbconf_shutdown(ctx);
1267         return werr;
1268 }
1269
1270 /****************************************************************
1271 ****************************************************************/
1272
1273 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1274 {
1275         WERROR werr;
1276
1277         if (!W_ERROR_IS_OK(r->out.result)) {
1278                 return r->out.result;
1279         }
1280
1281         if (!r->in.modify_config) {
1282                 return WERR_OK;
1283         }
1284
1285         werr = do_join_modify_vals_config(r);
1286         if (!W_ERROR_IS_OK(werr)) {
1287                 return werr;
1288         }
1289
1290         r->out.modified_config = true;
1291         r->out.result = werr;
1292
1293         return werr;
1294 }
1295
1296 /****************************************************************
1297 ****************************************************************/
1298
1299 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1300 {
1301         WERROR werr;
1302
1303         if (!W_ERROR_IS_OK(r->out.result)) {
1304                 return r->out.result;
1305         }
1306
1307         if (!r->in.modify_config) {
1308                 return WERR_OK;
1309         }
1310
1311         werr = do_unjoin_modify_vals_config(r);
1312         if (!W_ERROR_IS_OK(werr)) {
1313                 return werr;
1314         }
1315
1316         r->out.modified_config = true;
1317         r->out.result = werr;
1318
1319         return werr;
1320 }
1321
1322 /****************************************************************
1323 ****************************************************************/
1324
1325 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1326                                    const char *domain_str,
1327                                    const char **domain_p,
1328                                    const char **dc_p)
1329 {
1330         char *domain = NULL;
1331         char *dc = NULL;
1332         const char *p = NULL;
1333
1334         if (!domain_str || !domain_p || !dc_p) {
1335                 return false;
1336         }
1337
1338         p = strchr_m(domain_str, '\\');
1339
1340         if (p != NULL) {
1341                 domain = talloc_strndup(mem_ctx, domain_str,
1342                                          PTR_DIFF(p, domain_str));
1343                 dc = talloc_strdup(mem_ctx, p+1);
1344                 if (!dc) {
1345                         return false;
1346                 }
1347         } else {
1348                 domain = talloc_strdup(mem_ctx, domain_str);
1349                 dc = NULL;
1350         }
1351         if (!domain) {
1352                 return false;
1353         }
1354
1355         *domain_p = domain;
1356
1357         if (!*dc_p && dc) {
1358                 *dc_p = dc;
1359         }
1360
1361         return true;
1362 }
1363
1364 /****************************************************************
1365 ****************************************************************/
1366
1367 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1368                                          struct libnet_JoinCtx *r)
1369 {
1370         if (!r->in.domain_name) {
1371                 libnet_join_set_error_string(mem_ctx, r,
1372                         "No domain name defined");
1373                 return WERR_INVALID_PARAM;
1374         }
1375
1376         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1377                                     &r->in.domain_name,
1378                                     &r->in.dc_name)) {
1379                 libnet_join_set_error_string(mem_ctx, r,
1380                         "Failed to parse domain name");
1381                 return WERR_INVALID_PARAM;
1382         }
1383
1384         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1385                 libnet_join_set_error_string(mem_ctx, r,
1386                         "Configuration manipulation requested but not "
1387                         "supported by backend");
1388                 return WERR_NOT_SUPPORTED;
1389         }
1390
1391         if (IS_DC) {
1392                 return WERR_SETUP_DOMAIN_CONTROLLER;
1393         }
1394
1395         if (!secrets_init()) {
1396                 libnet_join_set_error_string(mem_ctx, r,
1397                         "Unable to open secrets database");
1398                 return WERR_CAN_NOT_COMPLETE;
1399         }
1400
1401         return WERR_OK;
1402 }
1403
1404 /****************************************************************
1405 ****************************************************************/
1406
1407 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1408                                           struct libnet_JoinCtx *r)
1409 {
1410         WERROR werr;
1411
1412         if (!W_ERROR_IS_OK(r->out.result)) {
1413                 return r->out.result;
1414         }
1415
1416         werr = do_JoinConfig(r);
1417         if (!W_ERROR_IS_OK(werr)) {
1418                 return werr;
1419         }
1420
1421         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1422                 saf_store(r->in.domain_name, r->in.dc_name);
1423         }
1424
1425         return WERR_OK;
1426 }
1427
1428 /****************************************************************
1429 ****************************************************************/
1430
1431 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1432 {
1433         const char *krb5_cc_env = NULL;
1434
1435         if (r->in.ads) {
1436                 ads_destroy(&r->in.ads);
1437         }
1438
1439         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1440         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1441                 unsetenv(KRB5_ENV_CCNAME);
1442         }
1443
1444         return 0;
1445 }
1446
1447 /****************************************************************
1448 ****************************************************************/
1449
1450 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
1451 {
1452         const char *krb5_cc_env = NULL;
1453
1454         if (r->in.ads) {
1455                 ads_destroy(&r->in.ads);
1456         }
1457
1458         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1459         if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
1460                 unsetenv(KRB5_ENV_CCNAME);
1461         }
1462
1463
1464         return 0;
1465 }
1466
1467 /****************************************************************
1468 ****************************************************************/
1469
1470 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
1471                            struct libnet_JoinCtx **r)
1472 {
1473         struct libnet_JoinCtx *ctx;
1474         const char *krb5_cc_env = NULL;
1475
1476         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
1477         if (!ctx) {
1478                 return WERR_NOMEM;
1479         }
1480
1481         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
1482
1483         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1484         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1485
1486         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1487         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1488                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1489                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1490                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1491         }
1492
1493         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
1494
1495         *r = ctx;
1496
1497         return WERR_OK;
1498 }
1499
1500 /****************************************************************
1501 ****************************************************************/
1502
1503 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
1504                              struct libnet_UnjoinCtx **r)
1505 {
1506         struct libnet_UnjoinCtx *ctx;
1507         const char *krb5_cc_env = NULL;
1508
1509         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
1510         if (!ctx) {
1511                 return WERR_NOMEM;
1512         }
1513
1514         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
1515
1516         ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
1517         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
1518
1519         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
1520         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
1521                 krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
1522                 W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
1523                 setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
1524         }
1525
1526         *r = ctx;
1527
1528         return WERR_OK;
1529 }
1530
1531 /****************************************************************
1532 ****************************************************************/
1533
1534 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
1535                                 struct libnet_JoinCtx *r)
1536 {
1537         NTSTATUS status;
1538 #ifdef WITH_ADS
1539         ADS_STATUS ads_status;
1540 #endif /* WITH_ADS */
1541
1542         if (!r->in.dc_name) {
1543                 struct netr_DsRGetDCNameInfo *info;
1544                 status = dsgetdcname(mem_ctx,
1545                                      r->in.domain_name,
1546                                      NULL,
1547                                      NULL,
1548                                      DS_DIRECTORY_SERVICE_REQUIRED |
1549                                      DS_WRITABLE_REQUIRED |
1550                                      DS_RETURN_DNS_NAME,
1551                                      &info);
1552                 if (!NT_STATUS_IS_OK(status)) {
1553                         libnet_join_set_error_string(mem_ctx, r,
1554                                 "failed to find DC for domain %s",
1555                                 r->in.domain_name,
1556                                 get_friendly_nt_error_msg(status));
1557                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1558                 }
1559
1560                 r->in.dc_name = talloc_strdup(mem_ctx,
1561                                               info->dc_unc);
1562                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1563         }
1564
1565 #ifdef WITH_ADS
1566         if (r->in.account_ou) {
1567
1568                 ads_status = libnet_join_connect_ads(mem_ctx, r);
1569                 if (!ADS_ERR_OK(ads_status)) {
1570                         return WERR_DEFAULT_JOIN_REQUIRED;
1571                 }
1572
1573                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
1574                 if (!ADS_ERR_OK(ads_status)) {
1575                         libnet_join_set_error_string(mem_ctx, r,
1576                                 "failed to precreate account in ou %s: %s",
1577                                 r->in.account_ou,
1578                                 ads_errstr(ads_status));
1579                         return WERR_DEFAULT_JOIN_REQUIRED;
1580                 }
1581
1582                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
1583         }
1584 #endif /* WITH_ADS */
1585
1586         status = libnet_join_joindomain_rpc(mem_ctx, r);
1587         if (!NT_STATUS_IS_OK(status)) {
1588                 libnet_join_set_error_string(mem_ctx, r,
1589                         "failed to join domain over rpc: %s",
1590                         get_friendly_nt_error_msg(status));
1591                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1592                         return WERR_SETUP_ALREADY_JOINED;
1593                 }
1594                 return ntstatus_to_werror(status);
1595         }
1596
1597         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
1598                 return WERR_SETUP_NOT_JOINED;
1599         }
1600
1601 #ifdef WITH_ADS
1602         if (r->out.domain_is_ad) {
1603                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1604                 if (!ADS_ERR_OK(ads_status)) {
1605                         return WERR_GENERAL_FAILURE;
1606                 }
1607         }
1608 #endif /* WITH_ADS */
1609
1610         return WERR_OK;
1611 }
1612
1613 /****************************************************************
1614 ****************************************************************/
1615
1616 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
1617                    struct libnet_JoinCtx *r)
1618 {
1619         WERROR werr;
1620
1621         if (r->in.debug) {
1622                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
1623         }
1624
1625         werr = libnet_join_pre_processing(mem_ctx, r);
1626         if (!W_ERROR_IS_OK(werr)) {
1627                 goto done;
1628         }
1629
1630         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1631                 werr = libnet_DomainJoin(mem_ctx, r);
1632                 if (!W_ERROR_IS_OK(werr)) {
1633                         goto done;
1634                 }
1635
1636                 werr = libnet_join_post_verify(mem_ctx, r);
1637                 if (!W_ERROR_IS_OK(werr)) {
1638                         goto done;
1639                 }
1640         }
1641
1642         werr = libnet_join_post_processing(mem_ctx, r);
1643         if (!W_ERROR_IS_OK(werr)) {
1644                 goto done;
1645         }
1646  done:
1647         r->out.result = werr;
1648
1649         if (r->in.debug) {
1650                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
1651         }
1652         return werr;
1653 }
1654
1655 /****************************************************************
1656 ****************************************************************/
1657
1658 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
1659                                   struct libnet_UnjoinCtx *r)
1660 {
1661         NTSTATUS status;
1662
1663         if (!r->in.domain_sid) {
1664                 struct dom_sid sid;
1665                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
1666                         libnet_unjoin_set_error_string(mem_ctx, r,
1667                                 "Unable to fetch domain sid: are we joined?");
1668                         return WERR_SETUP_NOT_JOINED;
1669                 }
1670                 r->in.domain_sid = sid_dup_talloc(mem_ctx, &sid);
1671                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
1672         }
1673
1674         if (!r->in.dc_name) {
1675                 struct netr_DsRGetDCNameInfo *info;
1676                 status = dsgetdcname(mem_ctx,
1677                                      r->in.domain_name,
1678                                      NULL,
1679                                      NULL,
1680                                      DS_DIRECTORY_SERVICE_REQUIRED |
1681                                      DS_WRITABLE_REQUIRED |
1682                                      DS_RETURN_DNS_NAME,
1683                                      &info);
1684                 if (!NT_STATUS_IS_OK(status)) {
1685                         libnet_unjoin_set_error_string(mem_ctx, r,
1686                                 "failed to find DC for domain %s",
1687                                 r->in.domain_name,
1688                                 get_friendly_nt_error_msg(status));
1689                         return WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1690                 }
1691
1692                 r->in.dc_name = talloc_strdup(mem_ctx,
1693                                               info->dc_unc);
1694                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
1695         }
1696
1697         status = libnet_join_unjoindomain_rpc(mem_ctx, r);
1698         if (!NT_STATUS_IS_OK(status)) {
1699                 libnet_unjoin_set_error_string(mem_ctx, r,
1700                         "failed to disable machine account via rpc: %s",
1701                         get_friendly_nt_error_msg(status));
1702                 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1703                         return WERR_SETUP_NOT_JOINED;
1704                 }
1705                 return ntstatus_to_werror(status);
1706         }
1707
1708         r->out.disabled_machine_account = true;
1709
1710 #ifdef WITH_ADS
1711         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
1712                 ADS_STATUS ads_status;
1713                 libnet_unjoin_connect_ads(mem_ctx, r);
1714                 ads_status = libnet_unjoin_remove_machine_acct(mem_ctx, r);
1715                 if (!ADS_ERR_OK(ads_status)) {
1716                         libnet_unjoin_set_error_string(mem_ctx, r,
1717                                 "failed to remove machine account from AD: %s",
1718                                 ads_errstr(ads_status));
1719                 } else {
1720                         r->out.deleted_machine_account = true;
1721                         /* dirty hack */
1722                         r->out.dns_domain_name = talloc_strdup(mem_ctx,
1723                                                                r->in.ads->server.realm);
1724                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
1725                 }
1726         }
1727 #endif /* WITH_ADS */
1728
1729         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
1730
1731         return WERR_OK;
1732 }
1733
1734 /****************************************************************
1735 ****************************************************************/
1736
1737 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
1738                                            struct libnet_UnjoinCtx *r)
1739 {
1740         if (!r->in.domain_name) {
1741                 libnet_unjoin_set_error_string(mem_ctx, r,
1742                         "No domain name defined");
1743                 return WERR_INVALID_PARAM;
1744         }
1745
1746         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1747                                     &r->in.domain_name,
1748                                     &r->in.dc_name)) {
1749                 libnet_unjoin_set_error_string(mem_ctx, r,
1750                         "Failed to parse domain name");
1751                 return WERR_INVALID_PARAM;
1752         }
1753
1754         if (r->in.modify_config && !lp_config_backend_is_registry()) {
1755                 libnet_unjoin_set_error_string(mem_ctx, r,
1756                         "Configuration manipulation requested but not "
1757                         "supported by backend");
1758                 return WERR_NOT_SUPPORTED;
1759         }
1760
1761         if (IS_DC) {
1762                 return WERR_SETUP_DOMAIN_CONTROLLER;
1763         }
1764
1765         if (!secrets_init()) {
1766                 libnet_unjoin_set_error_string(mem_ctx, r,
1767                         "Unable to open secrets database");
1768                 return WERR_CAN_NOT_COMPLETE;
1769         }
1770
1771         return WERR_OK;
1772 }
1773
1774 /****************************************************************
1775 ****************************************************************/
1776
1777 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
1778                                             struct libnet_UnjoinCtx *r)
1779 {
1780         saf_delete(r->out.netbios_domain_name);
1781         saf_delete(r->out.dns_domain_name);
1782
1783         return libnet_unjoin_config(r);
1784 }
1785
1786 /****************************************************************
1787 ****************************************************************/
1788
1789 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
1790                      struct libnet_UnjoinCtx *r)
1791 {
1792         WERROR werr;
1793
1794         if (r->in.debug) {
1795                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
1796         }
1797
1798         werr = libnet_unjoin_pre_processing(mem_ctx, r);
1799         if (!W_ERROR_IS_OK(werr)) {
1800                 goto done;
1801         }
1802
1803         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1804                 werr = libnet_DomainUnjoin(mem_ctx, r);
1805                 if (!W_ERROR_IS_OK(werr)) {
1806                         libnet_unjoin_config(r);
1807                         goto done;
1808                 }
1809         }
1810
1811         werr = libnet_unjoin_post_processing(mem_ctx, r);
1812         if (!W_ERROR_IS_OK(werr)) {
1813                 goto done;
1814         }
1815
1816  done:
1817         r->out.result = werr;
1818
1819         if (r->in.debug) {
1820                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
1821         }
1822
1823         return werr;
1824 }