source3/libnet/libnet_join.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  libnet Join Support
   4  *  Copyright (C) Gerald (Jerry) Carter 2006
   5  *  Copyright (C) Guenther Deschner 2007-2008
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22 #include "ads.h"
  23 #include "librpc/gen_ndr/ndr_libnet_join.h"
  24 #include "libnet/libnet_join.h"
  25 #include "libcli/auth/libcli_auth.h"
  26 #include "../librpc/gen_ndr/ndr_samr_c.h"
  27 #include "rpc_client/init_samr.h"
  28 #include "../librpc/gen_ndr/ndr_lsa_c.h"
  29 #include "rpc_client/cli_lsarpc.h"
  30 #include "../librpc/gen_ndr/ndr_netlogon.h"
  31 #include "rpc_client/cli_netlogon.h"
  32 #include "lib/smbconf/smbconf.h"
  33 #include "lib/smbconf/smbconf_reg.h"
  34 #include "../libds/common/flags.h"
  35 #include "secrets.h"
  36 #include "rpc_client/init_lsa.h"
  37 #include "rpc_client/cli_pipe.h"
  38 #include "../libcli/security/security.h"
  39 #include "passdb.h"
  40 #include "libsmb/libsmb.h"
  41 #include "../libcli/smb/smbXcli_base.h"
  42 #include "lib/param/loadparm.h"
  43 #include "libcli/auth/netlogon_creds_cli.h"
  44 #include "auth/credentials/credentials.h"
  45
  46 /****************************************************************
  47 ****************************************************************/
  48
  49 #define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
  50         do { \
  51                 char *str = NULL; \
  52                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
  53                 DEBUG(1,("libnet_Join:\n%s", str)); \
  54                 TALLOC_FREE(str); \
  55         } while (0)
  56
  57 #define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
  58         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  59 #define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
  60         LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
  61
  62 #define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
  63         do { \
  64                 char *str = NULL; \
  65                 str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
  66                 DEBUG(1,("libnet_Unjoin:\n%s", str)); \
  67                 TALLOC_FREE(str); \
  68         } while (0)
  69
  70 #define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
  71         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
  72 #define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
  73         LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
  74
  75 /****************************************************************
  76 ****************************************************************/
  77
  78 static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
  79                                          struct libnet_JoinCtx *r,
  80                                          const char *format, ...)
  81 {
  82         va_list args;
  83
  84         if (r->out.error_string) {
  85                 return;
  86         }
  87
  88         va_start(args, format);
  89         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
  90         va_end(args);
  91 }
  92
  93 /****************************************************************
  94 ****************************************************************/
  95
  96 static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
  97                                            struct libnet_UnjoinCtx *r,
  98                                            const char *format, ...)
  99 {
 100         va_list args;
 101
 102         if (r->out.error_string) {
 103                 return;
 104         }
 105
 106         va_start(args, format);
 107         r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
 108         va_end(args);
 109 }
 110
 111 #ifdef HAVE_ADS
 112
 113 /****************************************************************
 114 ****************************************************************/
 115
 116 static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
 117                                      const char *netbios_domain_name,
 118                                      const char *dc_name,
 119                                      const char *user_name,
 120                                      const char *password,
 121                                      ADS_STRUCT **ads)
 122 {
 123         ADS_STATUS status;
 124         ADS_STRUCT *my_ads = NULL;
 125         char *cp;
 126
 127         my_ads = ads_init(dns_domain_name,
 128                           netbios_domain_name,
 129                           dc_name);
 130         if (!my_ads) {
 131                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 132         }
 133
 134         if (user_name) {
 135                 SAFE_FREE(my_ads->auth.user_name);
 136                 my_ads->auth.user_name = SMB_STRDUP(user_name);
 137                 if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
 138                         *cp++ = '\0';
 139                         SAFE_FREE(my_ads->auth.realm);
 140                         my_ads->auth.realm = smb_xstrdup(cp);
 141                         if (!strupper_m(my_ads->auth.realm)) {
 142                                 ads_destroy(&my_ads);
 143                                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 144                         }
 145                 }
 146         }
 147
 148         if (password) {
 149                 SAFE_FREE(my_ads->auth.password);
 150                 my_ads->auth.password = SMB_STRDUP(password);
 151         }
 152
 153         status = ads_connect_user_creds(my_ads);
 154         if (!ADS_ERR_OK(status)) {
 155                 ads_destroy(&my_ads);
 156                 return status;
 157         }
 158
 159         *ads = my_ads;
 160         return ADS_SUCCESS;
 161 }
 162
 163 /****************************************************************
 164 ****************************************************************/
 165
 166 static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
 167                                           struct libnet_JoinCtx *r)
 168 {
 169         ADS_STATUS status;
 170
 171         status = libnet_connect_ads(r->out.dns_domain_name,
 172                                     r->out.netbios_domain_name,
 173                                     r->in.dc_name,
 174                                     r->in.admin_account,
 175                                     r->in.admin_password,
 176                                     &r->in.ads);
 177         if (!ADS_ERR_OK(status)) {
 178                 libnet_join_set_error_string(mem_ctx, r,
 179                         "failed to connect to AD: %s",
 180                         ads_errstr(status));
 181                 return status;
 182         }
 183
 184         if (!r->out.netbios_domain_name) {
 185                 r->out.netbios_domain_name = talloc_strdup(mem_ctx,
 186                                                            r->in.ads->server.workgroup);
 187                 ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
 188         }
 189
 190         if (!r->out.dns_domain_name) {
 191                 r->out.dns_domain_name = talloc_strdup(mem_ctx,
 192                                                        r->in.ads->config.realm);
 193                 ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
 194         }
 195
 196         r->out.domain_is_ad = true;
 197
 198         return ADS_SUCCESS;
 199 }
 200
 201 /****************************************************************
 202 ****************************************************************/
 203
 204 static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
 205                                             struct libnet_UnjoinCtx *r)
 206 {
 207         ADS_STATUS status;
 208
 209         status = libnet_connect_ads(r->in.domain_name,
 210                                     r->in.domain_name,
 211                                     r->in.dc_name,
 212                                     r->in.admin_account,
 213                                     r->in.admin_password,
 214                                     &r->in.ads);
 215         if (!ADS_ERR_OK(status)) {
 216                 libnet_unjoin_set_error_string(mem_ctx, r,
 217                         "failed to connect to AD: %s",
 218                         ads_errstr(status));
 219         }
 220
 221         return status;
 222 }
 223
 224 /****************************************************************
 225  join a domain using ADS (LDAP mods)
 226 ****************************************************************/
 227
 228 static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
 229                                                      struct libnet_JoinCtx *r)
 230 {
 231         ADS_STATUS status;
 232         LDAPMessage *res = NULL;
 233         const char *attrs[] = { "dn", NULL };
 234         bool moved = false;
 235
 236         status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
 237         if (!ADS_ERR_OK(status)) {
 238                 return status;
 239         }
 240
 241         status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
 242         if (!ADS_ERR_OK(status)) {
 243                 return status;
 244         }
 245
 246         if (ads_count_replies(r->in.ads, res) != 1) {
 247                 ads_msgfree(r->in.ads, res);
 248                 return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
 249         }
 250
 251         ads_msgfree(r->in.ads, res);
 252
 253         /* Attempt to create the machine account and bail if this fails.
 254            Assume that the admin wants exactly what they requested */
 255
 256         status = ads_create_machine_acct(r->in.ads,
 257                                          r->in.machine_name,
 258                                          r->in.account_ou);
 259
 260         if (ADS_ERR_OK(status)) {
 261                 DEBUG(1,("machine account creation created\n"));
 262                 return status;
 263         } else  if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 264                     (status.err.rc == LDAP_ALREADY_EXISTS)) {
 265                 status = ADS_SUCCESS;
 266         }
 267
 268         if (!ADS_ERR_OK(status)) {
 269                 DEBUG(1,("machine account creation failed\n"));
 270                 return status;
 271         }
 272
 273         status = ads_move_machine_acct(r->in.ads,
 274                                        r->in.machine_name,
 275                                        r->in.account_ou,
 276                                        &moved);
 277         if (!ADS_ERR_OK(status)) {
 278                 DEBUG(1,("failure to locate/move pre-existing "
 279                         "machine account\n"));
 280                 return status;
 281         }
 282
 283         DEBUG(1,("The machine account %s the specified OU.\n",
 284                 moved ? "was moved into" : "already exists in"));
 285
 286         return status;
 287 }
 288
 289 /****************************************************************
 290 ****************************************************************/
 291
 292 static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
 293                                                     struct libnet_UnjoinCtx *r)
 294 {
 295         ADS_STATUS status;
 296
 297         if (!r->in.ads) {
 298                 status = libnet_unjoin_connect_ads(mem_ctx, r);
 299                 if (!ADS_ERR_OK(status)) {
 300                         libnet_unjoin_set_error_string(mem_ctx, r,
 301                                 "failed to connect to AD: %s",
 302                                 ads_errstr(status));
 303                         return status;
 304                 }
 305         }
 306
 307         status = ads_leave_realm(r->in.ads, r->in.machine_name);
 308         if (!ADS_ERR_OK(status)) {
 309                 libnet_unjoin_set_error_string(mem_ctx, r,
 310                         "failed to leave realm: %s",
 311                         ads_errstr(status));
 312                 return status;
 313         }
 314
 315         return ADS_SUCCESS;
 316 }
 317
 318 /****************************************************************
 319 ****************************************************************/
 320
 321 static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
 322                                                 struct libnet_JoinCtx *r)
 323 {
 324         ADS_STATUS status;
 325         LDAPMessage *res = NULL;
 326         char *dn = NULL;
 327
 328         if (!r->in.machine_name) {
 329                 return ADS_ERROR(LDAP_NO_MEMORY);
 330         }
 331
 332         status = ads_find_machine_acct(r->in.ads,
 333                                        &res,
 334                                        r->in.machine_name);
 335         if (!ADS_ERR_OK(status)) {
 336                 return status;
 337         }
 338
 339         if (ads_count_replies(r->in.ads, res) != 1) {
 340                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 341                 goto done;
 342         }
 343
 344         dn = ads_get_dn(r->in.ads, mem_ctx, res);
 345         if (!dn) {
 346                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 347                 goto done;
 348         }
 349
 350         r->out.dn = talloc_strdup(mem_ctx, dn);
 351         if (!r->out.dn) {
 352                 status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 353                 goto done;
 354         }
 355
 356  done:
 357         ads_msgfree(r->in.ads, res);
 358         TALLOC_FREE(dn);
 359
 360         return status;
 361 }
 362
 363 static ADS_STATUS libnet_join_get_machine_spns(TALLOC_CTX *mem_ctx,
 364                                                struct libnet_JoinCtx *r,
 365                                                char ***spn_array,
 366                                                size_t *num_spns)
 367 {
 368         ADS_STATUS status;
 369
 370         if (r->in.machine_name == NULL) {
 371                 return ADS_ERROR_SYSTEM(EINVAL);
 372         }
 373
 374         status = ads_get_service_principal_names(mem_ctx,
 375                                                  r->in.ads,
 376                                                  r->in.machine_name,
 377                                                  spn_array,
 378                                                  num_spns);
 379
 380         return status;
 381 }
 382
 383 /****************************************************************
 384  Set a machines dNSHostName and servicePrincipalName attributes
 385 ****************************************************************/
 386
 387 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 388                                               struct libnet_JoinCtx *r)
 389 {
 390         ADS_STATUS status;
 391         ADS_MODLIST mods;
 392         fstring my_fqdn;
 393         const char **spn_array = NULL;
 394         size_t num_spns = 0;
 395         char *spn = NULL;
 396         bool ok;
 397
 398         /* Find our DN */
 399
 400         status = libnet_join_find_machine_acct(mem_ctx, r);
 401         if (!ADS_ERR_OK(status)) {
 402                 return status;
 403         }
 404
 405         status = libnet_join_get_machine_spns(mem_ctx,
 406                                               r,
 407                                               discard_const_p(char **, &spn_array),
 408                                               &num_spns);
 409         if (!ADS_ERR_OK(status)) {
 410                 DEBUG(5, ("Retrieving the servicePrincipalNames failed.\n"));
 411         }
 412
 413         /* Windows only creates HOST/shortname & HOST/fqdn. */
 414
 415         spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
 416         if (!spn) {
 417                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 418         }
 419         if (!strupper_m(spn)) {
 420                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 421         }
 422
 423         ok = ads_element_in_array(spn_array, num_spns, spn);
 424         if (!ok) {
 425                 ok = add_string_to_array(spn_array, spn,
 426                                          &spn_array, &num_spns);
 427                 if (!ok) {
 428                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 429                 }
 430         }
 431
 432         if (!name_to_fqdn(my_fqdn, r->in.machine_name)
 433             || (strchr(my_fqdn, '.') == NULL)) {
 434                 fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
 435                              r->out.dns_domain_name);
 436         }
 437
 438         if (!strlower_m(my_fqdn)) {
 439                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 440         }
 441
 442         if (!strequal(my_fqdn, r->in.machine_name)) {
 443                 spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
 444                 if (!spn) {
 445                         return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 446                 }
 447
 448                 ok = ads_element_in_array(spn_array, num_spns, spn);
 449                 if (!ok) {
 450                         ok = add_string_to_array(spn_array, spn,
 451                                                  &spn_array, &num_spns);
 452                         if (!ok) {
 453                                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 454                         }
 455                 }
 456         }
 457
 458         /* make sure to NULL terminate the array */
 459         spn_array = talloc_realloc(mem_ctx, spn_array, const char *, num_spns + 1);
 460         if (spn_array == NULL) {
 461                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 462         }
 463         spn_array[num_spns] = NULL;
 464
 465         mods = ads_init_mods(mem_ctx);
 466         if (!mods) {
 467                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 468         }
 469
 470         /* fields of primary importance */
 471
 472         status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
 473         if (!ADS_ERR_OK(status)) {
 474                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 475         }
 476
 477         status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
 478                                  spn_array);
 479         if (!ADS_ERR_OK(status)) {
 480                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 481         }
 482
 483         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 484 }
 485
 486 /****************************************************************
 487 ****************************************************************/
 488
 489 static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
 490                                               struct libnet_JoinCtx *r)
 491 {
 492         ADS_STATUS status;
 493         ADS_MODLIST mods;
 494
 495         if (!r->in.create_upn) {
 496                 return ADS_SUCCESS;
 497         }
 498
 499         /* Find our DN */
 500
 501         status = libnet_join_find_machine_acct(mem_ctx, r);
 502         if (!ADS_ERR_OK(status)) {
 503                 return status;
 504         }
 505
 506         if (!r->in.upn) {
 507                 const char *realm = r->out.dns_domain_name;
 508
 509                 /* in case we are about to generate a keytab during the join
 510                  * make sure the default upn we create is usable with kinit -k.
 511                  * gd */
 512
 513                 if (USE_KERBEROS_KEYTAB) {
 514                         realm = talloc_strdup_upper(mem_ctx,
 515                                                     r->out.dns_domain_name);
 516                 }
 517
 518                 if (!realm) {
 519                         return ADS_ERROR(LDAP_NO_MEMORY);
 520                 }
 521
 522                 r->in.upn = talloc_asprintf(mem_ctx,
 523                                             "host/%s@%s",
 524                                             r->in.machine_name,
 525                                             realm);
 526                 if (!r->in.upn) {
 527                         return ADS_ERROR(LDAP_NO_MEMORY);
 528                 }
 529         }
 530
 531         /* now do the mods */
 532
 533         mods = ads_init_mods(mem_ctx);
 534         if (!mods) {
 535                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 536         }
 537
 538         /* fields of primary importance */
 539
 540         status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
 541         if (!ADS_ERR_OK(status)) {
 542                 return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
 543         }
 544
 545         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 546 }
 547
 548
 549 /****************************************************************
 550 ****************************************************************/
 551
 552 static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
 553                                                 struct libnet_JoinCtx *r)
 554 {
 555         ADS_STATUS status;
 556         ADS_MODLIST mods;
 557         char *os_sp = NULL;
 558
 559         if (!r->in.os_name || !r->in.os_version ) {
 560                 return ADS_SUCCESS;
 561         }
 562
 563         /* Find our DN */
 564
 565         status = libnet_join_find_machine_acct(mem_ctx, r);
 566         if (!ADS_ERR_OK(status)) {
 567                 return status;
 568         }
 569
 570         /* now do the mods */
 571
 572         mods = ads_init_mods(mem_ctx);
 573         if (!mods) {
 574                 return ADS_ERROR(LDAP_NO_MEMORY);
 575         }
 576
 577         if (r->in.os_servicepack) {
 578                 /*
 579                  * if blank string then leave os_sp equal to NULL to force
 580                  * attribute delete (LDAP_MOD_DELETE)
 581                  */
 582                 if (!strequal(r->in.os_servicepack,"")) {
 583                         os_sp = talloc_strdup(mem_ctx, r->in.os_servicepack);
 584                 }
 585         } else {
 586                 os_sp = talloc_asprintf(mem_ctx, "Samba %s",
 587                                         samba_version_string());
 588         }
 589         if (!os_sp && !strequal(r->in.os_servicepack,"")) {
 590                 return ADS_ERROR(LDAP_NO_MEMORY);
 591         }
 592
 593         /* fields of primary importance */
 594
 595         status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
 596                              r->in.os_name);
 597         if (!ADS_ERR_OK(status)) {
 598                 return status;
 599         }
 600
 601         status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
 602                              r->in.os_version);
 603         if (!ADS_ERR_OK(status)) {
 604                 return status;
 605         }
 606
 607         status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
 608                              os_sp);
 609         if (!ADS_ERR_OK(status)) {
 610                 return status;
 611         }
 612
 613         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 614 }
 615
 616 /****************************************************************
 617 ****************************************************************/
 618
 619 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 620                                       struct libnet_JoinCtx *r)
 621 {
 622         if (!USE_SYSTEM_KEYTAB) {
 623                 return true;
 624         }
 625
 626         if (ads_keytab_create_default(r->in.ads) != 0) {
 627                 return false;
 628         }
 629
 630         return true;
 631 }
 632
 633 /****************************************************************
 634 ****************************************************************/
 635
 636 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 637                                                  struct libnet_JoinCtx *r)
 638 {
 639         uint32_t domain_func;
 640         ADS_STATUS status;
 641         const char *salt = NULL;
 642         char *std_salt = NULL;
 643
 644         status = ads_domain_func_level(r->in.ads, &domain_func);
 645         if (!ADS_ERR_OK(status)) {
 646                 libnet_join_set_error_string(mem_ctx, r,
 647                         "failed to determine domain functional level: %s",
 648                         ads_errstr(status));
 649                 return false;
 650         }
 651
 652         /* go ahead and setup the default salt */
 653
 654         std_salt = kerberos_standard_des_salt();
 655         if (!std_salt) {
 656                 libnet_join_set_error_string(mem_ctx, r,
 657                         "failed to obtain standard DES salt");
 658                 return false;
 659         }
 660
 661         salt = talloc_strdup(mem_ctx, std_salt);
 662         if (!salt) {
 663                 return false;
 664         }
 665
 666         SAFE_FREE(std_salt);
 667
 668         /* if it's a Windows functional domain, we have to look for the UPN */
 669
 670         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 671                 char *upn;
 672
 673                 upn = ads_get_upn(r->in.ads, mem_ctx,
 674                                   r->in.machine_name);
 675                 if (upn) {
 676                         salt = talloc_strdup(mem_ctx, upn);
 677                         if (!salt) {
 678                                 return false;
 679                         }
 680                 }
 681         }
 682
 683         return kerberos_secrets_store_des_salt(salt);
 684 }
 685
 686 /****************************************************************
 687 ****************************************************************/
 688
 689 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 690                                                   struct libnet_JoinCtx *r)
 691 {
 692         ADS_STATUS status;
 693
 694         if (!r->in.ads) {
 695                 status = libnet_join_connect_ads(mem_ctx, r);
 696                 if (!ADS_ERR_OK(status)) {
 697                         return status;
 698                 }
 699         }
 700
 701         status = libnet_join_set_machine_spn(mem_ctx, r);
 702         if (!ADS_ERR_OK(status)) {
 703                 libnet_join_set_error_string(mem_ctx, r,
 704                         "Failed to set machine spn: %s\n"
 705                         "Do you have sufficient permissions to create machine "
 706                         "accounts?",
 707                         ads_errstr(status));
 708                 return status;
 709         }
 710
 711         status = libnet_join_set_os_attributes(mem_ctx, r);
 712         if (!ADS_ERR_OK(status)) {
 713                 libnet_join_set_error_string(mem_ctx, r,
 714                         "failed to set machine os attributes: %s",
 715                         ads_errstr(status));
 716                 return status;
 717         }
 718
 719         status = libnet_join_set_machine_upn(mem_ctx, r);
 720         if (!ADS_ERR_OK(status)) {
 721                 libnet_join_set_error_string(mem_ctx, r,
 722                         "failed to set machine upn: %s",
 723                         ads_errstr(status));
 724                 return status;
 725         }
 726
 727         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 728                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 729         }
 730
 731         if (!libnet_join_create_keytab(mem_ctx, r)) {
 732                 libnet_join_set_error_string(mem_ctx, r,
 733                         "failed to create kerberos keytab");
 734                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 735         }
 736
 737         return ADS_SUCCESS;
 738 }
 739 #endif /* HAVE_ADS */
 740
 741 /****************************************************************
 742  Store the machine password and domain SID
 743 ****************************************************************/
 744
 745 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 746                                                  struct libnet_JoinCtx *r)
 747 {
 748         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 749                                       r->out.domain_sid))
 750         {
 751                 DEBUG(1,("Failed to save domain sid\n"));
 752                 return false;
 753         }
 754
 755         if (!secrets_store_machine_password(r->in.machine_password,
 756                                             r->out.netbios_domain_name,
 757                                             r->in.secure_channel_type))
 758         {
 759                 DEBUG(1,("Failed to save machine password\n"));
 760                 return false;
 761         }
 762
 763         return true;
 764 }
 765
 766 /****************************************************************
 767  Connect dc's IPC$ share
 768 ****************************************************************/
 769
 770 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 771                                            const char *user,
 772                                            const char *domain,
 773                                            const char *pass,
 774                                            bool use_kerberos,
 775                                            struct cli_state **cli)
 776 {
 777         int flags = 0;
 778
 779         if (use_kerberos) {
 780                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 781         }
 782
 783         if (use_kerberos && pass) {
 784                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 785         }
 786
 787         return cli_full_connection(cli, NULL,
 788                                    dc,
 789                                    NULL, 0,
 790                                    "IPC$", "IPC",
 791                                    user,
 792                                    domain,
 793                                    pass,
 794                                    flags,
 795                                    SMB_SIGNING_DEFAULT);
 796 }
 797
 798 /****************************************************************
 799  Lookup domain dc's info
 800 ****************************************************************/
 801
 802 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 803                                           struct libnet_JoinCtx *r,
 804                                           struct cli_state **cli)
 805 {
 806         struct rpc_pipe_client *pipe_hnd = NULL;
 807         struct policy_handle lsa_pol;
 808         NTSTATUS status, result;
 809         union lsa_PolicyInformation *info = NULL;
 810         struct dcerpc_binding_handle *b;
 811
 812         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 813                                             r->in.admin_account,
 814                                             r->in.admin_domain,
 815                                             r->in.admin_password,
 816                                             r->in.use_kerberos,
 817                                             cli);
 818         if (!NT_STATUS_IS_OK(status)) {
 819                 goto done;
 820         }
 821
 822         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc,
 823                                           &pipe_hnd);
 824         if (!NT_STATUS_IS_OK(status)) {
 825                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 826                         nt_errstr(status)));
 827                 goto done;
 828         }
 829
 830         b = pipe_hnd->binding_handle;
 831
 832         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 833                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 834         if (!NT_STATUS_IS_OK(status)) {
 835                 goto done;
 836         }
 837
 838         status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
 839                                              &lsa_pol,
 840                                              LSA_POLICY_INFO_DNS,
 841                                              &info,
 842                                              &result);
 843         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
 844                 r->out.domain_is_ad = true;
 845                 r->out.netbios_domain_name = info->dns.name.string;
 846                 r->out.dns_domain_name = info->dns.dns_domain.string;
 847                 r->out.forest_name = info->dns.dns_forest.string;
 848                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
 849                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 850         }
 851
 852         if (!NT_STATUS_IS_OK(status)) {
 853                 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
 854                                                     &lsa_pol,
 855                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 856                                                     &info,
 857                                                     &result);
 858                 if (!NT_STATUS_IS_OK(status)) {
 859                         goto done;
 860                 }
 861                 if (!NT_STATUS_IS_OK(result)) {
 862                         status = result;
 863                         goto done;
 864                 }
 865
 866                 r->out.netbios_domain_name = info->account_domain.name.string;
 867                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
 868                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 869         }
 870
 871         dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
 872         TALLOC_FREE(pipe_hnd);
 873
 874  done:
 875         return status;
 876 }
 877
 878 /****************************************************************
 879  Do the domain join unsecure
 880 ****************************************************************/
 881
 882 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 883                                                     struct libnet_JoinCtx *r,
 884                                                     struct cli_state *cli)
 885 {
 886         TALLOC_CTX *frame = talloc_stackframe();
 887         struct rpc_pipe_client *netlogon_pipe = NULL;
 888         struct netlogon_creds_cli_context *netlogon_creds = NULL;
 889         struct samr_Password current_nt_hash;
 890         const char *account_name = NULL;
 891         NTSTATUS status;
 892
 893         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon,
 894                                           &netlogon_pipe);
 895         if (!NT_STATUS_IS_OK(status)) {
 896                 TALLOC_FREE(frame);
 897                 return status;
 898         }
 899
 900         if (!r->in.machine_password) {
 901                 r->in.machine_password = generate_random_password(mem_ctx,
 902                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
 903                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 904                 if (r->in.machine_password == NULL) {
 905                         TALLOC_FREE(frame);
 906                         return NT_STATUS_NO_MEMORY;
 907                 }
 908         }
 909
 910         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 911         E_md4hash(r->in.admin_password, current_nt_hash.hash);
 912
 913         account_name = talloc_asprintf(frame, "%s$",
 914                                        r->in.machine_name);
 915         if (account_name == NULL) {
 916                 TALLOC_FREE(frame);
 917                 return NT_STATUS_NO_MEMORY;
 918         }
 919
 920         status = rpccli_create_netlogon_creds(netlogon_pipe->desthost,
 921                                               r->in.domain_name,
 922                                               account_name,
 923                                               r->in.secure_channel_type,
 924                                               r->in.msg_ctx,
 925                                               frame,
 926                                               &netlogon_creds);
 927         if (!NT_STATUS_IS_OK(status)) {
 928                 TALLOC_FREE(frame);
 929                 return status;
 930         }
 931
 932         status = rpccli_setup_netlogon_creds(cli, NCACN_NP,
 933                                              netlogon_creds,
 934                                              true, /* force_reauth */
 935                                              current_nt_hash,
 936                                              NULL); /* previous_nt_hash */
 937         if (!NT_STATUS_IS_OK(status)) {
 938                 TALLOC_FREE(frame);
 939                 return status;
 940         }
 941
 942         status = netlogon_creds_cli_ServerPasswordSet(netlogon_creds,
 943                                                       netlogon_pipe->binding_handle,
 944                                                       r->in.machine_password,
 945                                                       NULL); /* new_version */
 946         if (!NT_STATUS_IS_OK(status)) {
 947                 TALLOC_FREE(frame);
 948                 return status;
 949         }
 950
 951         TALLOC_FREE(frame);
 952         return NT_STATUS_OK;
 953 }
 954
 955 /****************************************************************
 956  Do the domain join
 957 ****************************************************************/
 958
 959 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
 960                                            struct libnet_JoinCtx *r,
 961                                            struct cli_state *cli)
 962 {
 963         struct rpc_pipe_client *pipe_hnd = NULL;
 964         struct policy_handle sam_pol, domain_pol, user_pol;
 965         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
 966         char *acct_name;
 967         struct lsa_String lsa_acct_name;
 968         uint32_t user_rid;
 969         uint32_t acct_flags = ACB_WSTRUST;
 970         struct samr_Ids user_rids;
 971         struct samr_Ids name_types;
 972         union samr_UserInfo user_info;
 973         struct dcerpc_binding_handle *b = NULL;
 974         unsigned int old_timeout = 0;
 975
 976         DATA_BLOB session_key = data_blob_null;
 977         struct samr_CryptPassword crypt_pwd;
 978         struct samr_CryptPasswordEx crypt_pwd_ex;
 979
 980         ZERO_STRUCT(sam_pol);
 981         ZERO_STRUCT(domain_pol);
 982         ZERO_STRUCT(user_pol);
 983
 984         switch (r->in.secure_channel_type) {
 985         case SEC_CHAN_WKSTA:
 986                 acct_flags = ACB_WSTRUST;
 987                 break;
 988         case SEC_CHAN_BDC:
 989                 acct_flags = ACB_SVRTRUST;
 990                 break;
 991         default:
 992                 return NT_STATUS_INVALID_PARAMETER;
 993         }
 994
 995         if (!r->in.machine_password) {
 996                 r->in.machine_password = generate_random_password(mem_ctx,
 997                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
 998                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 999                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
1000         }
1001
1002         /* Open the domain */
1003
1004         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr,
1005                                           &pipe_hnd);
1006         if (!NT_STATUS_IS_OK(status)) {
1007                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1008                         nt_errstr(status)));
1009                 goto done;
1010         }
1011
1012         b = pipe_hnd->binding_handle;
1013
1014         status = cli_get_session_key(mem_ctx, pipe_hnd, &session_key);
1015         if (!NT_STATUS_IS_OK(status)) {
1016                 DEBUG(0,("Error getting session_key of SAM pipe. Error was %s\n",
1017                         nt_errstr(status)));
1018                 goto done;
1019         }
1020
1021         status = dcerpc_samr_Connect2(b, mem_ctx,
1022                                       pipe_hnd->desthost,
1023                                       SAMR_ACCESS_ENUM_DOMAINS
1024                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
1025                                       &sam_pol,
1026                                       &result);
1027         if (!NT_STATUS_IS_OK(status)) {
1028                 goto done;
1029         }
1030         if (!NT_STATUS_IS_OK(result)) {
1031                 status = result;
1032                 goto done;
1033         }
1034
1035         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1036                                         &sam_pol,
1037                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
1038                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
1039                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
1040                                         r->out.domain_sid,
1041                                         &domain_pol,
1042                                         &result);
1043         if (!NT_STATUS_IS_OK(status)) {
1044                 goto done;
1045         }
1046         if (!NT_STATUS_IS_OK(result)) {
1047                 status = result;
1048                 goto done;
1049         }
1050
1051         /* Create domain user */
1052
1053         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1054         if (!strlower_m(acct_name)) {
1055                 status = NT_STATUS_INVALID_PARAMETER;
1056                 goto done;
1057         }
1058
1059         init_lsa_String(&lsa_acct_name, acct_name);
1060
1061         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
1062                 uint32_t access_desired =
1063                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
1064                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
1065                         SAMR_USER_ACCESS_SET_PASSWORD |
1066                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
1067                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
1068                 uint32_t access_granted = 0;
1069
1070                 DEBUG(10,("Creating account with desired access mask: %d\n",
1071                         access_desired));
1072
1073                 status = dcerpc_samr_CreateUser2(b, mem_ctx,
1074                                                  &domain_pol,
1075                                                  &lsa_acct_name,
1076                                                  acct_flags,
1077                                                  access_desired,
1078                                                  &user_pol,
1079                                                  &access_granted,
1080                                                  &user_rid,
1081                                                  &result);
1082                 if (!NT_STATUS_IS_OK(status)) {
1083                         goto done;
1084                 }
1085
1086                 status = result;
1087                 if (!NT_STATUS_IS_OK(status) &&
1088                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1089
1090                         DEBUG(10,("Creation of workstation account failed: %s\n",
1091                                 nt_errstr(status)));
1092
1093                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
1094                            username/password combo but the user does not have
1095                            administrator access. */
1096
1097                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
1098                                 libnet_join_set_error_string(mem_ctx, r,
1099                                         "User specified does not have "
1100                                         "administrator privileges");
1101                         }
1102
1103                         goto done;
1104                 }
1105
1106                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1107                         if (!(r->in.join_flags &
1108                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
1109                                 goto done;
1110                         }
1111                 }
1112
1113                 /* We *must* do this.... don't ask... */
1114
1115                 if (NT_STATUS_IS_OK(status)) {
1116                         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1117                 }
1118         }
1119
1120         status = dcerpc_samr_LookupNames(b, mem_ctx,
1121                                          &domain_pol,
1122                                          1,
1123                                          &lsa_acct_name,
1124                                          &user_rids,
1125                                          &name_types,
1126                                          &result);
1127         if (!NT_STATUS_IS_OK(status)) {
1128                 goto done;
1129         }
1130         if (!NT_STATUS_IS_OK(result)) {
1131                 status = result;
1132                 goto done;
1133         }
1134         if (user_rids.count != 1) {
1135                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1136                 goto done;
1137         }
1138         if (name_types.count != 1) {
1139                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1140                 goto done;
1141         }
1142
1143         if (name_types.ids[0] != SID_NAME_USER) {
1144                 DEBUG(0,("%s is not a user account (type=%d)\n",
1145                         acct_name, name_types.ids[0]));
1146                 status = NT_STATUS_INVALID_WORKSTATION;
1147                 goto done;
1148         }
1149
1150         user_rid = user_rids.ids[0];
1151
1152         /* Open handle on user */
1153
1154         status = dcerpc_samr_OpenUser(b, mem_ctx,
1155                                       &domain_pol,
1156                                       SEC_FLAG_MAXIMUM_ALLOWED,
1157                                       user_rid,
1158                                       &user_pol,
1159                                       &result);
1160         if (!NT_STATUS_IS_OK(status)) {
1161                 goto done;
1162         }
1163         if (!NT_STATUS_IS_OK(result)) {
1164                 status = result;
1165                 goto done;
1166         }
1167
1168         /* Fill in the additional account flags now */
1169
1170         acct_flags |= ACB_PWNOEXP;
1171
1172         /* Set account flags on machine account */
1173         ZERO_STRUCT(user_info.info16);
1174         user_info.info16.acct_flags = acct_flags;
1175
1176         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1177                                          &user_pol,
1178                                          16,
1179                                          &user_info,
1180                                          &result);
1181         if (!NT_STATUS_IS_OK(status)) {
1182                 dcerpc_samr_DeleteUser(b, mem_ctx,
1183                                        &user_pol,
1184                                        &result);
1185
1186                 libnet_join_set_error_string(mem_ctx, r,
1187                         "Failed to set account flags for machine account (%s)\n",
1188                         nt_errstr(status));
1189                 goto done;
1190         }
1191
1192         if (!NT_STATUS_IS_OK(result)) {
1193                 status = result;
1194
1195                 dcerpc_samr_DeleteUser(b, mem_ctx,
1196                                        &user_pol,
1197                                        &result);
1198
1199                 libnet_join_set_error_string(mem_ctx, r,
1200                         "Failed to set account flags for machine account (%s)\n",
1201                         nt_errstr(status));
1202                 goto done;
1203         }
1204
1205         /* Set password on machine account - first try level 26 */
1206
1207         /*
1208          * increase the timeout as password filter modules on the DC
1209          * might delay the operation for a significant amount of time
1210          */
1211         old_timeout = rpccli_set_timeout(pipe_hnd, 600000);
1212
1213         init_samr_CryptPasswordEx(r->in.machine_password,
1214                                   &session_key,
1215                                   &crypt_pwd_ex);
1216
1217         user_info.info26.password = crypt_pwd_ex;
1218         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1219
1220         status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1221                                           &user_pol,
1222                                           26,
1223                                           &user_info,
1224                                           &result);
1225
1226         if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1227
1228                 /* retry with level 24 */
1229
1230                 init_samr_CryptPassword(r->in.machine_password,
1231                                         &session_key,
1232                                         &crypt_pwd);
1233
1234                 user_info.info24.password = crypt_pwd;
1235                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1236
1237                 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1238                                                   &user_pol,
1239                                                   24,
1240                                                   &user_info,
1241                                                   &result);
1242         }
1243
1244         old_timeout = rpccli_set_timeout(pipe_hnd, old_timeout);
1245
1246         if (!NT_STATUS_IS_OK(status)) {
1247
1248                 dcerpc_samr_DeleteUser(b, mem_ctx,
1249                                        &user_pol,
1250                                        &result);
1251
1252                 libnet_join_set_error_string(mem_ctx, r,
1253                         "Failed to set password for machine account (%s)\n",
1254                         nt_errstr(status));
1255                 goto done;
1256         }
1257         if (!NT_STATUS_IS_OK(result)) {
1258                 status = result;
1259
1260                 dcerpc_samr_DeleteUser(b, mem_ctx,
1261                                        &user_pol,
1262                                        &result);
1263
1264                 libnet_join_set_error_string(mem_ctx, r,
1265                         "Failed to set password for machine account (%s)\n",
1266                         nt_errstr(status));
1267                 goto done;
1268         }
1269
1270         status = NT_STATUS_OK;
1271
1272  done:
1273         if (!pipe_hnd) {
1274                 return status;
1275         }
1276
1277         data_blob_clear_free(&session_key);
1278
1279         if (is_valid_policy_hnd(&sam_pol)) {
1280                 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1281         }
1282         if (is_valid_policy_hnd(&domain_pol)) {
1283                 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1284         }
1285         if (is_valid_policy_hnd(&user_pol)) {
1286                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1287         }
1288         TALLOC_FREE(pipe_hnd);
1289
1290         return status;
1291 }
1292
1293 /****************************************************************
1294 ****************************************************************/
1295
1296 NTSTATUS libnet_join_ok(struct messaging_context *msg_ctx,
1297                         const char *netbios_domain_name,
1298                         const char *dc_name,
1299                         const bool use_kerberos)
1300 {
1301         TALLOC_CTX *frame = talloc_stackframe();
1302         struct cli_state *cli = NULL;
1303         struct rpc_pipe_client *netlogon_pipe = NULL;
1304         struct cli_credentials *cli_creds = NULL;
1305         struct netlogon_creds_cli_context *netlogon_creds = NULL;
1306         struct netlogon_creds_CredentialState *creds = NULL;
1307         uint32_t netlogon_flags = 0;
1308         NTSTATUS status;
1309         const char *machine_account = NULL;
1310         const char *machine_domain = NULL;
1311         const char *machine_password = NULL;
1312         int flags = 0;
1313
1314         if (!dc_name) {
1315                 TALLOC_FREE(frame);
1316                 return NT_STATUS_INVALID_PARAMETER;
1317         }
1318
1319         if (!secrets_init()) {
1320                 TALLOC_FREE(frame);
1321                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1322         }
1323
1324         status = pdb_get_trust_credentials(netbios_domain_name, NULL,
1325                                            frame, &cli_creds);
1326         if (!NT_STATUS_IS_OK(status)) {
1327                 TALLOC_FREE(frame);
1328                 return status;
1329         }
1330
1331         /* we don't want any old password */
1332         cli_credentials_set_old_password(cli_creds, NULL, CRED_SPECIFIED);
1333
1334         if (use_kerberos) {
1335                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
1336         }
1337
1338         machine_account = cli_credentials_get_username(cli_creds);
1339         machine_domain = cli_credentials_get_domain(cli_creds);
1340         machine_password = cli_credentials_get_password(cli_creds);
1341
1342         status = cli_full_connection(&cli, NULL,
1343                                      dc_name,
1344                                      NULL, 0,
1345                                      "IPC$", "IPC",
1346                                      machine_account,
1347                                      machine_domain,
1348                                      machine_password,
1349                                      flags,
1350                                      SMB_SIGNING_DEFAULT);
1351
1352         if (!NT_STATUS_IS_OK(status)) {
1353                 status = cli_full_connection(&cli, NULL,
1354                                              dc_name,
1355                                              NULL, 0,
1356                                              "IPC$", "IPC",
1357                                              "",
1358                                              NULL,
1359                                              "",
1360                                              0,
1361                                              SMB_SIGNING_DEFAULT);
1362         }
1363
1364         if (!NT_STATUS_IS_OK(status)) {
1365                 TALLOC_FREE(frame);
1366                 return status;
1367         }
1368
1369         status = rpccli_create_netlogon_creds_with_creds(cli_creds,
1370                                                          dc_name,
1371                                                          msg_ctx,
1372                                                          frame,
1373                                                          &netlogon_creds);
1374         if (!NT_STATUS_IS_OK(status)) {
1375                 cli_shutdown(cli);
1376                 TALLOC_FREE(frame);
1377                 return status;
1378         }
1379
1380         status = rpccli_setup_netlogon_creds_with_creds(cli, NCACN_NP,
1381                                                         netlogon_creds,
1382                                                         true, /* force_reauth */
1383                                                         cli_creds);
1384         if (!NT_STATUS_IS_OK(status)) {
1385                 DEBUG(0,("connect_to_domain_password_server: "
1386                          "unable to open the domain client session to "
1387                          "machine %s. Flags[0x%08X] Error was : %s.\n",
1388                          dc_name, (unsigned)netlogon_flags,
1389                          nt_errstr(status)));
1390                 cli_shutdown(cli);
1391                 TALLOC_FREE(frame);
1392                 return status;
1393         }
1394
1395         status = netlogon_creds_cli_get(netlogon_creds,
1396                                         talloc_tos(),
1397                                         &creds);
1398         if (!NT_STATUS_IS_OK(status)) {
1399                 cli_shutdown(cli);
1400                 TALLOC_FREE(frame);
1401                 return status;
1402         }
1403         netlogon_flags = creds->negotiate_flags;
1404         TALLOC_FREE(creds);
1405
1406         if (!(netlogon_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
1407                 cli_shutdown(cli);
1408                 TALLOC_FREE(frame);
1409                 return NT_STATUS_OK;
1410         }
1411
1412         status = cli_rpc_pipe_open_schannel_with_creds(
1413                 cli, &ndr_table_netlogon, NCACN_NP,
1414                 cli_creds,
1415                 netlogon_creds, &netlogon_pipe);
1416
1417         TALLOC_FREE(netlogon_pipe);
1418
1419         if (!NT_STATUS_IS_OK(status)) {
1420                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1421                         "on netlogon pipe to server %s for domain %s. "
1422                         "Error was %s\n",
1423                         smbXcli_conn_remote_name(cli->conn),
1424                         netbios_domain_name, nt_errstr(status)));
1425                 cli_shutdown(cli);
1426                 TALLOC_FREE(frame);
1427                 return status;
1428         }
1429
1430         cli_shutdown(cli);
1431         TALLOC_FREE(frame);
1432         return NT_STATUS_OK;
1433 }
1434
1435 /****************************************************************
1436 ****************************************************************/
1437
1438 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1439                                       struct libnet_JoinCtx *r)
1440 {
1441         NTSTATUS status;
1442
1443         status = libnet_join_ok(r->in.msg_ctx,
1444                                 r->out.netbios_domain_name,
1445                                 r->in.dc_name,
1446                                 r->in.use_kerberos);
1447         if (!NT_STATUS_IS_OK(status)) {
1448                 libnet_join_set_error_string(mem_ctx, r,
1449                         "failed to verify domain membership after joining: %s",
1450                         get_friendly_nt_error_msg(status));
1451                 return WERR_SETUP_NOT_JOINED;
1452         }
1453
1454         return WERR_OK;
1455 }
1456
1457 /****************************************************************
1458 ****************************************************************/
1459
1460 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1461                                                     struct libnet_UnjoinCtx *r)
1462 {
1463         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1464                 return false;
1465         }
1466
1467         if (!secrets_delete_domain_sid(lp_workgroup())) {
1468                 return false;
1469         }
1470
1471         return true;
1472 }
1473
1474 /****************************************************************
1475 ****************************************************************/
1476
1477 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1478                                              struct libnet_UnjoinCtx *r)
1479 {
1480         struct cli_state *cli = NULL;
1481         struct rpc_pipe_client *pipe_hnd = NULL;
1482         struct policy_handle sam_pol, domain_pol, user_pol;
1483         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1484         char *acct_name;
1485         uint32_t user_rid;
1486         struct lsa_String lsa_acct_name;
1487         struct samr_Ids user_rids;
1488         struct samr_Ids name_types;
1489         union samr_UserInfo *info = NULL;
1490         struct dcerpc_binding_handle *b = NULL;
1491
1492         ZERO_STRUCT(sam_pol);
1493         ZERO_STRUCT(domain_pol);
1494         ZERO_STRUCT(user_pol);
1495
1496         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1497                                             r->in.admin_account,
1498                                             r->in.admin_domain,
1499                                             r->in.admin_password,
1500                                             r->in.use_kerberos,
1501                                             &cli);
1502         if (!NT_STATUS_IS_OK(status)) {
1503                 goto done;
1504         }
1505
1506         /* Open the domain */
1507
1508         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr,
1509                                           &pipe_hnd);
1510         if (!NT_STATUS_IS_OK(status)) {
1511                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1512                         nt_errstr(status)));
1513                 goto done;
1514         }
1515
1516         b = pipe_hnd->binding_handle;
1517
1518         status = dcerpc_samr_Connect2(b, mem_ctx,
1519                                       pipe_hnd->desthost,
1520                                       SEC_FLAG_MAXIMUM_ALLOWED,
1521                                       &sam_pol,
1522                                       &result);
1523         if (!NT_STATUS_IS_OK(status)) {
1524                 goto done;
1525         }
1526         if (!NT_STATUS_IS_OK(result)) {
1527                 status = result;
1528                 goto done;
1529         }
1530
1531         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1532                                         &sam_pol,
1533                                         SEC_FLAG_MAXIMUM_ALLOWED,
1534                                         r->in.domain_sid,
1535                                         &domain_pol,
1536                                         &result);
1537         if (!NT_STATUS_IS_OK(status)) {
1538                 goto done;
1539         }
1540         if (!NT_STATUS_IS_OK(result)) {
1541                 status = result;
1542                 goto done;
1543         }
1544
1545         /* Create domain user */
1546
1547         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1548         if (!strlower_m(acct_name)) {
1549                 status = NT_STATUS_INVALID_PARAMETER;
1550                 goto done;
1551         }
1552
1553         init_lsa_String(&lsa_acct_name, acct_name);
1554
1555         status = dcerpc_samr_LookupNames(b, mem_ctx,
1556                                          &domain_pol,
1557                                          1,
1558                                          &lsa_acct_name,
1559                                          &user_rids,
1560                                          &name_types,
1561                                          &result);
1562
1563         if (!NT_STATUS_IS_OK(status)) {
1564                 goto done;
1565         }
1566         if (!NT_STATUS_IS_OK(result)) {
1567                 status = result;
1568                 goto done;
1569         }
1570         if (user_rids.count != 1) {
1571                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1572                 goto done;
1573         }
1574         if (name_types.count != 1) {
1575                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1576                 goto done;
1577         }
1578
1579         if (name_types.ids[0] != SID_NAME_USER) {
1580                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1581                         name_types.ids[0]));
1582                 status = NT_STATUS_INVALID_WORKSTATION;
1583                 goto done;
1584         }
1585
1586         user_rid = user_rids.ids[0];
1587
1588         /* Open handle on user */
1589
1590         status = dcerpc_samr_OpenUser(b, mem_ctx,
1591                                       &domain_pol,
1592                                       SEC_FLAG_MAXIMUM_ALLOWED,
1593                                       user_rid,
1594                                       &user_pol,
1595                                       &result);
1596         if (!NT_STATUS_IS_OK(status)) {
1597                 goto done;
1598         }
1599         if (!NT_STATUS_IS_OK(result)) {
1600                 status = result;
1601                 goto done;
1602         }
1603
1604         /* Get user info */
1605
1606         status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1607                                            &user_pol,
1608                                            16,
1609                                            &info,
1610                                            &result);
1611         if (!NT_STATUS_IS_OK(status)) {
1612                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1613                 goto done;
1614         }
1615         if (!NT_STATUS_IS_OK(result)) {
1616                 status = result;
1617                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1618                 goto done;
1619         }
1620
1621         /* now disable and setuser info */
1622
1623         info->info16.acct_flags |= ACB_DISABLED;
1624
1625         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1626                                          &user_pol,
1627                                          16,
1628                                          info,
1629                                          &result);
1630         if (!NT_STATUS_IS_OK(status)) {
1631                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1632                 goto done;
1633         }
1634         if (!NT_STATUS_IS_OK(result)) {
1635                 status = result;
1636                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1637                 goto done;
1638         }
1639         status = result;
1640         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1641
1642 done:
1643         if (pipe_hnd && b) {
1644                 if (is_valid_policy_hnd(&domain_pol)) {
1645                         dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1646                 }
1647                 if (is_valid_policy_hnd(&sam_pol)) {
1648                         dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1649                 }
1650                 TALLOC_FREE(pipe_hnd);
1651         }
1652
1653         if (cli) {
1654                 cli_shutdown(cli);
1655         }
1656
1657         return status;
1658 }
1659
1660 /****************************************************************
1661 ****************************************************************/
1662
1663 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1664 {
1665         WERROR werr = WERR_OK;
1666         sbcErr err;
1667         struct smbconf_ctx *ctx;
1668
1669         err = smbconf_init_reg(r, &ctx, NULL);
1670         if (!SBC_ERROR_IS_OK(err)) {
1671                 werr = WERR_NO_SUCH_SERVICE;
1672                 goto done;
1673         }
1674
1675         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1676
1677                 err = smbconf_set_global_parameter(ctx, "security", "user");
1678                 if (!SBC_ERROR_IS_OK(err)) {
1679                         werr = WERR_NO_SUCH_SERVICE;
1680                         goto done;
1681                 }
1682
1683                 err = smbconf_set_global_parameter(ctx, "workgroup",
1684                                                    r->in.domain_name);
1685                 if (!SBC_ERROR_IS_OK(err)) {
1686                         werr = WERR_NO_SUCH_SERVICE;
1687                         goto done;
1688                 }
1689
1690                 smbconf_delete_global_parameter(ctx, "realm");
1691                 goto done;
1692         }
1693
1694         err = smbconf_set_global_parameter(ctx, "security", "domain");
1695         if (!SBC_ERROR_IS_OK(err)) {
1696                 werr = WERR_NO_SUCH_SERVICE;
1697                 goto done;
1698         }
1699
1700         err = smbconf_set_global_parameter(ctx, "workgroup",
1701                                            r->out.netbios_domain_name);
1702         if (!SBC_ERROR_IS_OK(err)) {
1703                 werr = WERR_NO_SUCH_SERVICE;
1704                 goto done;
1705         }
1706
1707         if (r->out.domain_is_ad) {
1708                 err = smbconf_set_global_parameter(ctx, "security", "ads");
1709                 if (!SBC_ERROR_IS_OK(err)) {
1710                         werr = WERR_NO_SUCH_SERVICE;
1711                         goto done;
1712                 }
1713
1714                 err = smbconf_set_global_parameter(ctx, "realm",
1715                                                    r->out.dns_domain_name);
1716                 if (!SBC_ERROR_IS_OK(err)) {
1717                         werr = WERR_NO_SUCH_SERVICE;
1718                         goto done;
1719                 }
1720         }
1721
1722  done:
1723         smbconf_shutdown(ctx);
1724         return werr;
1725 }
1726
1727 /****************************************************************
1728 ****************************************************************/
1729
1730 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1731 {
1732         WERROR werr = WERR_OK;
1733         sbcErr err;
1734         struct smbconf_ctx *ctx;
1735
1736         err = smbconf_init_reg(r, &ctx, NULL);
1737         if (!SBC_ERROR_IS_OK(err)) {
1738                 werr = WERR_NO_SUCH_SERVICE;
1739                 goto done;
1740         }
1741
1742         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1743
1744                 err = smbconf_set_global_parameter(ctx, "security", "user");
1745                 if (!SBC_ERROR_IS_OK(err)) {
1746                         werr = WERR_NO_SUCH_SERVICE;
1747                         goto done;
1748                 }
1749
1750                 err = smbconf_delete_global_parameter(ctx, "workgroup");
1751                 if (!SBC_ERROR_IS_OK(err)) {
1752                         werr = WERR_NO_SUCH_SERVICE;
1753                         goto done;
1754                 }
1755
1756                 smbconf_delete_global_parameter(ctx, "realm");
1757         }
1758
1759  done:
1760         smbconf_shutdown(ctx);
1761         return werr;
1762 }
1763
1764 /****************************************************************
1765 ****************************************************************/
1766
1767 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1768 {
1769         WERROR werr;
1770
1771         if (!W_ERROR_IS_OK(r->out.result)) {
1772                 return r->out.result;
1773         }
1774
1775         if (!r->in.modify_config) {
1776                 return WERR_OK;
1777         }
1778
1779         werr = do_join_modify_vals_config(r);
1780         if (!W_ERROR_IS_OK(werr)) {
1781                 return werr;
1782         }
1783
1784         lp_load_global(get_dyn_CONFIGFILE());
1785
1786         r->out.modified_config = true;
1787         r->out.result = werr;
1788
1789         return werr;
1790 }
1791
1792 /****************************************************************
1793 ****************************************************************/
1794
1795 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1796 {
1797         WERROR werr;
1798
1799         if (!W_ERROR_IS_OK(r->out.result)) {
1800                 return r->out.result;
1801         }
1802
1803         if (!r->in.modify_config) {
1804                 return WERR_OK;
1805         }
1806
1807         werr = do_unjoin_modify_vals_config(r);
1808         if (!W_ERROR_IS_OK(werr)) {
1809                 return werr;
1810         }
1811
1812         lp_load_global(get_dyn_CONFIGFILE());
1813
1814         r->out.modified_config = true;
1815         r->out.result = werr;
1816
1817         return werr;
1818 }
1819
1820 /****************************************************************
1821 ****************************************************************/
1822
1823 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1824                                    const char *domain_str,
1825                                    const char **domain_p,
1826                                    const char **dc_p)
1827 {
1828         char *domain = NULL;
1829         char *dc = NULL;
1830         const char *p = NULL;
1831
1832         if (!domain_str || !domain_p || !dc_p) {
1833                 return false;
1834         }
1835
1836         p = strchr_m(domain_str, '\\');
1837
1838         if (p != NULL) {
1839                 domain = talloc_strndup(mem_ctx, domain_str,
1840                                          PTR_DIFF(p, domain_str));
1841                 dc = talloc_strdup(mem_ctx, p+1);
1842                 if (!dc) {
1843                         return false;
1844                 }
1845         } else {
1846                 domain = talloc_strdup(mem_ctx, domain_str);
1847                 dc = NULL;
1848         }
1849         if (!domain) {
1850                 return false;
1851         }
1852
1853         *domain_p = domain;
1854
1855         if (!*dc_p && dc) {
1856                 *dc_p = dc;
1857         }
1858
1859         return true;
1860 }
1861
1862 /****************************************************************
1863 ****************************************************************/
1864
1865 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1866                                          struct libnet_JoinCtx *r)
1867 {
1868         if (!r->in.domain_name) {
1869                 libnet_join_set_error_string(mem_ctx, r,
1870                         "No domain name defined");
1871                 return WERR_INVALID_PARAM;
1872         }
1873
1874         if (strlen(r->in.machine_name) > 15) {
1875                 libnet_join_set_error_string(mem_ctx, r,
1876                         "Our netbios name can be at most 15 chars long, "
1877                          "\"%s\" is %u chars long\n",
1878                          r->in.machine_name,
1879                          (unsigned int)strlen(r->in.machine_name));
1880                 return WERR_INVALID_PARAM;
1881         }
1882
1883         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1884                                     &r->in.domain_name,
1885                                     &r->in.dc_name)) {
1886                 libnet_join_set_error_string(mem_ctx, r,
1887                         "Failed to parse domain name");
1888                 return WERR_INVALID_PARAM;
1889         }
1890
1891         if (!r->in.admin_domain) {
1892                 char *admin_domain = NULL;
1893                 char *admin_account = NULL;
1894                 split_domain_user(mem_ctx,
1895                                   r->in.admin_account,
1896                                   &admin_domain,
1897                                   &admin_account);
1898                 r->in.admin_domain = admin_domain;
1899                 r->in.admin_account = admin_account;
1900         }
1901
1902         if (!secrets_init()) {
1903                 libnet_join_set_error_string(mem_ctx, r,
1904                         "Unable to open secrets database");
1905                 return WERR_CAN_NOT_COMPLETE;
1906         }
1907
1908         return WERR_OK;
1909 }
1910
1911 /****************************************************************
1912 ****************************************************************/
1913
1914 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1915 {
1916         NTSTATUS status;
1917
1918         /* Try adding dom admins to builtin\admins. Only log failures. */
1919         status = create_builtin_administrators(domain_sid);
1920         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1921                 DEBUG(10,("Unable to auto-add domain administrators to "
1922                           "BUILTIN\\Administrators during join because "
1923                           "winbindd must be running.\n"));
1924         } else if (!NT_STATUS_IS_OK(status)) {
1925                 DEBUG(5, ("Failed to auto-add domain administrators to "
1926                           "BUILTIN\\Administrators during join: %s\n",
1927                           nt_errstr(status)));
1928         }
1929
1930         /* Try adding dom users to builtin\users. Only log failures. */
1931         status = create_builtin_users(domain_sid);
1932         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1933                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1934                           "during join because winbindd must be running.\n"));
1935         } else if (!NT_STATUS_IS_OK(status)) {
1936                 DEBUG(5, ("Failed to auto-add domain administrators to "
1937                           "BUILTIN\\Administrators during join: %s\n",
1938                           nt_errstr(status)));
1939         }
1940 }
1941
1942 /****************************************************************
1943 ****************************************************************/
1944
1945 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
1946                                           struct libnet_JoinCtx *r)
1947 {
1948         WERROR werr;
1949
1950         if (!W_ERROR_IS_OK(r->out.result)) {
1951                 return r->out.result;
1952         }
1953
1954         werr = do_JoinConfig(r);
1955         if (!W_ERROR_IS_OK(werr)) {
1956                 return werr;
1957         }
1958
1959         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1960                 return WERR_OK;
1961         }
1962
1963         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
1964         if (r->out.dns_domain_name) {
1965                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
1966         }
1967
1968 #ifdef HAVE_ADS
1969         if (r->out.domain_is_ad &&
1970             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
1971                 ADS_STATUS ads_status;
1972
1973                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
1974                 if (!ADS_ERR_OK(ads_status)) {
1975                         return WERR_GENERAL_FAILURE;
1976                 }
1977         }
1978 #endif /* HAVE_ADS */
1979
1980         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
1981
1982         return WERR_OK;
1983 }
1984
1985 /****************************************************************
1986 ****************************************************************/
1987
1988 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
1989 {
1990         if (r->in.ads) {
1991                 ads_destroy(&r->in.ads);
1992         }
1993
1994         return 0;
1995 }
1996
1997 /****************************************************************
1998 ****************************************************************/
1999
2000 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
2001 {
2002         if (r->in.ads) {
2003                 ads_destroy(&r->in.ads);
2004         }
2005
2006         return 0;
2007 }
2008
2009 /****************************************************************
2010 ****************************************************************/
2011
2012 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
2013                            struct libnet_JoinCtx **r)
2014 {
2015         struct libnet_JoinCtx *ctx;
2016
2017         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
2018         if (!ctx) {
2019                 return WERR_NOMEM;
2020         }
2021
2022         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
2023
2024         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
2025         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
2026
2027         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
2028
2029         *r = ctx;
2030
2031         return WERR_OK;
2032 }
2033
2034 /****************************************************************
2035 ****************************************************************/
2036
2037 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
2038                              struct libnet_UnjoinCtx **r)
2039 {
2040         struct libnet_UnjoinCtx *ctx;
2041
2042         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
2043         if (!ctx) {
2044                 return WERR_NOMEM;
2045         }
2046
2047         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
2048
2049         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
2050         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
2051
2052         *r = ctx;
2053
2054         return WERR_OK;
2055 }
2056
2057 /****************************************************************
2058 ****************************************************************/
2059
2060 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
2061                                        struct libnet_JoinCtx *r)
2062 {
2063         bool valid_security = false;
2064         bool valid_workgroup = false;
2065         bool valid_realm = false;
2066
2067         /* check if configuration is already set correctly */
2068
2069         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
2070
2071         switch (r->out.domain_is_ad) {
2072                 case false:
2073                         valid_security = (lp_security() == SEC_DOMAIN)
2074                                 || (lp_server_role() == ROLE_DOMAIN_PDC)
2075                                 || (lp_server_role() == ROLE_DOMAIN_BDC);
2076                         if (valid_workgroup && valid_security) {
2077                                 /* nothing to be done */
2078                                 return WERR_OK;
2079                         }
2080                         break;
2081                 case true:
2082                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
2083                         switch (lp_security()) {
2084                         case SEC_DOMAIN:
2085                         case SEC_ADS:
2086                                 valid_security = true;
2087                         }
2088
2089                         if (valid_workgroup && valid_realm && valid_security) {
2090                                 /* nothing to be done */
2091                                 return WERR_OK;
2092                         }
2093                         break;
2094         }
2095
2096         /* check if we are supposed to manipulate configuration */
2097
2098         if (!r->in.modify_config) {
2099
2100                 char *wrong_conf = talloc_strdup(mem_ctx, "");
2101
2102                 if (!valid_workgroup) {
2103                         wrong_conf = talloc_asprintf_append(wrong_conf,
2104                                 "\"workgroup\" set to '%s', should be '%s'",
2105                                 lp_workgroup(), r->out.netbios_domain_name);
2106                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2107                 }
2108
2109                 if (!valid_realm) {
2110                         wrong_conf = talloc_asprintf_append(wrong_conf,
2111                                 "\"realm\" set to '%s', should be '%s'",
2112                                 lp_realm(), r->out.dns_domain_name);
2113                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2114                 }
2115
2116                 if (!valid_security) {
2117                         const char *sec = NULL;
2118                         switch (lp_security()) {
2119                         case SEC_USER:  sec = "user"; break;
2120                         case SEC_DOMAIN: sec = "domain"; break;
2121                         case SEC_ADS: sec = "ads"; break;
2122                         }
2123                         wrong_conf = talloc_asprintf_append(wrong_conf,
2124                                 "\"security\" set to '%s', should be %s",
2125                                 sec, r->out.domain_is_ad ?
2126                                 "either 'domain' or 'ads'" : "'domain'");
2127                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2128                 }
2129
2130                 libnet_join_set_error_string(mem_ctx, r,
2131                         "Invalid configuration (%s) and configuration modification "
2132                         "was not requested", wrong_conf);
2133                 return WERR_CAN_NOT_COMPLETE;
2134         }
2135
2136         /* check if we are able to manipulate configuration */
2137
2138         if (!lp_config_backend_is_registry()) {
2139                 libnet_join_set_error_string(mem_ctx, r,
2140                         "Configuration manipulation requested but not "
2141                         "supported by backend");
2142                 return WERR_NOT_SUPPORTED;
2143         }
2144
2145         return WERR_OK;
2146 }
2147
2148 /****************************************************************
2149 ****************************************************************/
2150
2151 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
2152                                 struct libnet_JoinCtx *r)
2153 {
2154         NTSTATUS status;
2155         WERROR werr;
2156         struct cli_state *cli = NULL;
2157 #ifdef HAVE_ADS
2158         ADS_STATUS ads_status;
2159 #endif /* HAVE_ADS */
2160
2161         if (!r->in.dc_name) {
2162                 struct netr_DsRGetDCNameInfo *info;
2163                 const char *dc;
2164                 uint32_t name_type_flags = 0;
2165                 if (r->in.domain_name_type == JoinDomNameTypeDNS) {
2166                         name_type_flags = DS_IS_DNS_NAME;
2167                 } else if (r->in.domain_name_type == JoinDomNameTypeNBT) {
2168                         name_type_flags = DS_IS_FLAT_NAME;
2169                 }
2170                 status = dsgetdcname(mem_ctx,
2171                                      r->in.msg_ctx,
2172                                      r->in.domain_name,
2173                                      NULL,
2174                                      NULL,
2175                                      DS_FORCE_REDISCOVERY |
2176                                      DS_DIRECTORY_SERVICE_REQUIRED |
2177                                      DS_WRITABLE_REQUIRED |
2178                                      DS_RETURN_DNS_NAME |
2179                                      name_type_flags,
2180                                      &info);
2181                 if (!NT_STATUS_IS_OK(status)) {
2182                         libnet_join_set_error_string(mem_ctx, r,
2183                                 "failed to find DC for domain %s",
2184                                 r->in.domain_name,
2185                                 get_friendly_nt_error_msg(status));
2186                         return WERR_DCNOTFOUND;
2187                 }
2188
2189                 dc = strip_hostname(info->dc_unc);
2190                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2191                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2192         }
2193
2194         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
2195         if (!NT_STATUS_IS_OK(status)) {
2196                 libnet_join_set_error_string(mem_ctx, r,
2197                         "failed to lookup DC info for domain '%s' over rpc: %s",
2198                         r->in.domain_name, get_friendly_nt_error_msg(status));
2199                 return ntstatus_to_werror(status);
2200         }
2201
2202         werr = libnet_join_check_config(mem_ctx, r);
2203         if (!W_ERROR_IS_OK(werr)) {
2204                 goto done;
2205         }
2206
2207 #ifdef HAVE_ADS
2208
2209         create_local_private_krb5_conf_for_domain(
2210                 r->out.dns_domain_name, r->out.netbios_domain_name,
2211                 NULL, smbXcli_conn_remote_sockaddr(cli->conn));
2212
2213         if (r->out.domain_is_ad && r->in.account_ou &&
2214             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2215
2216                 ads_status = libnet_join_connect_ads(mem_ctx, r);
2217                 if (!ADS_ERR_OK(ads_status)) {
2218                         return WERR_DEFAULT_JOIN_REQUIRED;
2219                 }
2220
2221                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2222                 if (!ADS_ERR_OK(ads_status)) {
2223                         libnet_join_set_error_string(mem_ctx, r,
2224                                 "failed to precreate account in ou %s: %s",
2225                                 r->in.account_ou,
2226                                 ads_errstr(ads_status));
2227                         return WERR_DEFAULT_JOIN_REQUIRED;
2228                 }
2229
2230                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2231         }
2232 #endif /* HAVE_ADS */
2233
2234         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2235             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2236                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2237         } else {
2238                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2239         }
2240         if (!NT_STATUS_IS_OK(status)) {
2241                 libnet_join_set_error_string(mem_ctx, r,
2242                         "failed to join domain '%s' over rpc: %s",
2243                         r->in.domain_name, get_friendly_nt_error_msg(status));
2244                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2245                         return WERR_SETUP_ALREADY_JOINED;
2246                 }
2247                 werr = ntstatus_to_werror(status);
2248                 goto done;
2249         }
2250
2251         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2252                 werr = WERR_SETUP_NOT_JOINED;
2253                 goto done;
2254         }
2255
2256         werr = WERR_OK;
2257
2258  done:
2259         if (cli) {
2260                 cli_shutdown(cli);
2261         }
2262
2263         return werr;
2264 }
2265
2266 /****************************************************************
2267 ****************************************************************/
2268
2269 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2270                                    struct libnet_JoinCtx *r)
2271 {
2272         WERROR werr;
2273         struct libnet_UnjoinCtx *u = NULL;
2274
2275         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2276         if (!W_ERROR_IS_OK(werr)) {
2277                 return werr;
2278         }
2279
2280         u->in.debug             = r->in.debug;
2281         u->in.dc_name           = r->in.dc_name;
2282         u->in.domain_name       = r->in.domain_name;
2283         u->in.admin_account     = r->in.admin_account;
2284         u->in.admin_password    = r->in.admin_password;
2285         u->in.modify_config     = r->in.modify_config;
2286         u->in.use_kerberos      = r->in.use_kerberos;
2287         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2288                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2289
2290         werr = libnet_Unjoin(mem_ctx, u);
2291         TALLOC_FREE(u);
2292
2293         return werr;
2294 }
2295
2296 /****************************************************************
2297 ****************************************************************/
2298
2299 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2300                    struct libnet_JoinCtx *r)
2301 {
2302         WERROR werr;
2303
2304         if (r->in.debug) {
2305                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2306         }
2307
2308         ZERO_STRUCT(r->out);
2309
2310         werr = libnet_join_pre_processing(mem_ctx, r);
2311         if (!W_ERROR_IS_OK(werr)) {
2312                 goto done;
2313         }
2314
2315         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2316                 werr = libnet_DomainJoin(mem_ctx, r);
2317                 if (!W_ERROR_IS_OK(werr)) {
2318                         goto done;
2319                 }
2320         }
2321
2322         werr = libnet_join_post_processing(mem_ctx, r);
2323         if (!W_ERROR_IS_OK(werr)) {
2324                 goto done;
2325         }
2326
2327         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2328                 werr = libnet_join_post_verify(mem_ctx, r);
2329                 if (!W_ERROR_IS_OK(werr)) {
2330                         libnet_join_rollback(mem_ctx, r);
2331                 }
2332         }
2333
2334  done:
2335         r->out.result = werr;
2336
2337         if (r->in.debug) {
2338                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2339         }
2340         return werr;
2341 }
2342
2343 /****************************************************************
2344 ****************************************************************/
2345
2346 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2347                                   struct libnet_UnjoinCtx *r)
2348 {
2349         NTSTATUS status;
2350
2351         if (!r->in.domain_sid) {
2352                 struct dom_sid sid;
2353                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2354                         libnet_unjoin_set_error_string(mem_ctx, r,
2355                                 "Unable to fetch domain sid: are we joined?");
2356                         return WERR_SETUP_NOT_JOINED;
2357                 }
2358                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2359                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2360         }
2361
2362         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2363             !r->in.delete_machine_account) {
2364                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2365                 return WERR_OK;
2366         }
2367
2368         if (!r->in.dc_name) {
2369                 struct netr_DsRGetDCNameInfo *info;
2370                 const char *dc;
2371                 status = dsgetdcname(mem_ctx,
2372                                      r->in.msg_ctx,
2373                                      r->in.domain_name,
2374                                      NULL,
2375                                      NULL,
2376                                      DS_DIRECTORY_SERVICE_REQUIRED |
2377                                      DS_WRITABLE_REQUIRED |
2378                                      DS_RETURN_DNS_NAME,
2379                                      &info);
2380                 if (!NT_STATUS_IS_OK(status)) {
2381                         libnet_unjoin_set_error_string(mem_ctx, r,
2382                                 "failed to find DC for domain %s",
2383                                 r->in.domain_name,
2384                                 get_friendly_nt_error_msg(status));
2385                         return WERR_DCNOTFOUND;
2386                 }
2387
2388                 dc = strip_hostname(info->dc_unc);
2389                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2390                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2391         }
2392
2393 #ifdef HAVE_ADS
2394         /* for net ads leave, try to delete the account.  If it works,
2395            no sense in disabling.  If it fails, we can still try to
2396            disable it. jmcd */
2397
2398         if (r->in.delete_machine_account) {
2399                 ADS_STATUS ads_status;
2400                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2401                 if (ADS_ERR_OK(ads_status)) {
2402                         /* dirty hack */
2403                         r->out.dns_domain_name =
2404                                 talloc_strdup(mem_ctx,
2405                                               r->in.ads->server.realm);
2406                         ads_status =
2407                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2408                 }
2409                 if (!ADS_ERR_OK(ads_status)) {
2410                         libnet_unjoin_set_error_string(mem_ctx, r,
2411                                 "failed to remove machine account from AD: %s",
2412                                 ads_errstr(ads_status));
2413                 } else {
2414                         r->out.deleted_machine_account = true;
2415                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2416                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2417                         return WERR_OK;
2418                 }
2419         }
2420 #endif /* HAVE_ADS */
2421
2422         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2423            "disable".  */
2424         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2425                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2426                 if (!NT_STATUS_IS_OK(status)) {
2427                         libnet_unjoin_set_error_string(mem_ctx, r,
2428                                 "failed to disable machine account via rpc: %s",
2429                                 get_friendly_nt_error_msg(status));
2430                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2431                                 return WERR_SETUP_NOT_JOINED;
2432                         }
2433                         return ntstatus_to_werror(status);
2434                 }
2435
2436                 r->out.disabled_machine_account = true;
2437         }
2438
2439         /* If disable succeeded or was not requested at all, we
2440            should be getting rid of our end of things */
2441
2442         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2443
2444         return WERR_OK;
2445 }
2446
2447 /****************************************************************
2448 ****************************************************************/
2449
2450 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2451                                            struct libnet_UnjoinCtx *r)
2452 {
2453         if (!r->in.domain_name) {
2454                 libnet_unjoin_set_error_string(mem_ctx, r,
2455                         "No domain name defined");
2456                 return WERR_INVALID_PARAM;
2457         }
2458
2459         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2460                                     &r->in.domain_name,
2461                                     &r->in.dc_name)) {
2462                 libnet_unjoin_set_error_string(mem_ctx, r,
2463                         "Failed to parse domain name");
2464                 return WERR_INVALID_PARAM;
2465         }
2466
2467         if (IS_DC) {
2468                 return WERR_SETUP_DOMAIN_CONTROLLER;
2469         }
2470
2471         if (!r->in.admin_domain) {
2472                 char *admin_domain = NULL;
2473                 char *admin_account = NULL;
2474                 split_domain_user(mem_ctx,
2475                                   r->in.admin_account,
2476                                   &admin_domain,
2477                                   &admin_account);
2478                 r->in.admin_domain = admin_domain;
2479                 r->in.admin_account = admin_account;
2480         }
2481
2482         if (!secrets_init()) {
2483                 libnet_unjoin_set_error_string(mem_ctx, r,
2484                         "Unable to open secrets database");
2485                 return WERR_CAN_NOT_COMPLETE;
2486         }
2487
2488         return WERR_OK;
2489 }
2490
2491 /****************************************************************
2492 ****************************************************************/
2493
2494 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2495                                             struct libnet_UnjoinCtx *r)
2496 {
2497         saf_delete(r->out.netbios_domain_name);
2498         saf_delete(r->out.dns_domain_name);
2499
2500         return libnet_unjoin_config(r);
2501 }
2502
2503 /****************************************************************
2504 ****************************************************************/
2505
2506 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2507                      struct libnet_UnjoinCtx *r)
2508 {
2509         WERROR werr;
2510
2511         if (r->in.debug) {
2512                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2513         }
2514
2515         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2516         if (!W_ERROR_IS_OK(werr)) {
2517                 goto done;
2518         }
2519
2520         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2521                 werr = libnet_DomainUnjoin(mem_ctx, r);
2522                 if (!W_ERROR_IS_OK(werr)) {
2523                         libnet_unjoin_config(r);
2524                         goto done;
2525                 }
2526         }
2527
2528         werr = libnet_unjoin_post_processing(mem_ctx, r);
2529         if (!W_ERROR_IS_OK(werr)) {
2530                 goto done;
2531         }
2532
2533  done:
2534         r->out.result = werr;
2535
2536         if (r->in.debug) {
2537                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2538         }
2539
2540         return werr;
2541 }