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 ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx,
 620                                          struct libnet_JoinCtx *r)
 621 {
 622         ADS_STATUS status;
 623         ADS_MODLIST mods;
 624         uint32_t etype_list = ENC_CRC32 | ENC_RSA_MD5 | ENC_RC4_HMAC_MD5;
 625         const char *etype_list_str;
 626
 627 #ifdef HAVE_ENCTYPE_AES128_CTS_HMAC_SHA1_96
 628         etype_list |= ENC_HMAC_SHA1_96_AES128;
 629 #endif
 630 #ifdef HAVE_ENCTYPE_AES256_CTS_HMAC_SHA1_96
 631         etype_list |= ENC_HMAC_SHA1_96_AES256;
 632 #endif
 633
 634         etype_list_str = talloc_asprintf(mem_ctx, "%d", etype_list);
 635         if (!etype_list_str) {
 636                 return ADS_ERROR(LDAP_NO_MEMORY);
 637         }
 638
 639         /* Find our DN */
 640
 641         status = libnet_join_find_machine_acct(mem_ctx, r);
 642         if (!ADS_ERR_OK(status)) {
 643                 return status;
 644         }
 645
 646         /* now do the mods */
 647
 648         mods = ads_init_mods(mem_ctx);
 649         if (!mods) {
 650                 return ADS_ERROR(LDAP_NO_MEMORY);
 651         }
 652
 653         status = ads_mod_str(mem_ctx, &mods, "msDS-SupportedEncryptionTypes",
 654                              etype_list_str);
 655         if (!ADS_ERR_OK(status)) {
 656                 return status;
 657         }
 658
 659         return ads_gen_mod(r->in.ads, r->out.dn, mods);
 660 }
 661
 662 /****************************************************************
 663 ****************************************************************/
 664
 665 static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
 666                                       struct libnet_JoinCtx *r)
 667 {
 668         if (!USE_SYSTEM_KEYTAB) {
 669                 return true;
 670         }
 671
 672         if (ads_keytab_create_default(r->in.ads) != 0) {
 673                 return false;
 674         }
 675
 676         return true;
 677 }
 678
 679 /****************************************************************
 680 ****************************************************************/
 681
 682 static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
 683                                                  struct libnet_JoinCtx *r)
 684 {
 685         uint32_t domain_func;
 686         ADS_STATUS status;
 687         const char *salt = NULL;
 688         char *std_salt = NULL;
 689
 690         status = ads_domain_func_level(r->in.ads, &domain_func);
 691         if (!ADS_ERR_OK(status)) {
 692                 libnet_join_set_error_string(mem_ctx, r,
 693                         "failed to determine domain functional level: %s",
 694                         ads_errstr(status));
 695                 return false;
 696         }
 697
 698         /* go ahead and setup the default salt */
 699
 700         std_salt = kerberos_standard_des_salt();
 701         if (!std_salt) {
 702                 libnet_join_set_error_string(mem_ctx, r,
 703                         "failed to obtain standard DES salt");
 704                 return false;
 705         }
 706
 707         salt = talloc_strdup(mem_ctx, std_salt);
 708         if (!salt) {
 709                 return false;
 710         }
 711
 712         SAFE_FREE(std_salt);
 713
 714         /* if it's a Windows functional domain, we have to look for the UPN */
 715
 716         if (domain_func == DS_DOMAIN_FUNCTION_2000) {
 717                 char *upn;
 718
 719                 upn = ads_get_upn(r->in.ads, mem_ctx,
 720                                   r->in.machine_name);
 721                 if (upn) {
 722                         salt = talloc_strdup(mem_ctx, upn);
 723                         if (!salt) {
 724                                 return false;
 725                         }
 726                 }
 727         }
 728
 729         return kerberos_secrets_store_des_salt(salt);
 730 }
 731
 732 /****************************************************************
 733 ****************************************************************/
 734
 735 static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
 736                                                   struct libnet_JoinCtx *r)
 737 {
 738         ADS_STATUS status;
 739         uint32_t func_level = 0;
 740
 741         if (!r->in.ads) {
 742                 status = libnet_join_connect_ads(mem_ctx, r);
 743                 if (!ADS_ERR_OK(status)) {
 744                         return status;
 745                 }
 746         }
 747
 748         status = libnet_join_set_machine_spn(mem_ctx, r);
 749         if (!ADS_ERR_OK(status)) {
 750                 libnet_join_set_error_string(mem_ctx, r,
 751                         "Failed to set machine spn: %s\n"
 752                         "Do you have sufficient permissions to create machine "
 753                         "accounts?",
 754                         ads_errstr(status));
 755                 return status;
 756         }
 757
 758         status = libnet_join_set_os_attributes(mem_ctx, r);
 759         if (!ADS_ERR_OK(status)) {
 760                 libnet_join_set_error_string(mem_ctx, r,
 761                         "failed to set machine os attributes: %s",
 762                         ads_errstr(status));
 763                 return status;
 764         }
 765
 766         status = libnet_join_set_machine_upn(mem_ctx, r);
 767         if (!ADS_ERR_OK(status)) {
 768                 libnet_join_set_error_string(mem_ctx, r,
 769                         "failed to set machine upn: %s",
 770                         ads_errstr(status));
 771                 return status;
 772         }
 773
 774         status = ads_domain_func_level(r->in.ads, &func_level);
 775         if (!ADS_ERR_OK(status)) {
 776                 libnet_join_set_error_string(mem_ctx, r,
 777                         "failed to query domain controller functional level: %s",
 778                         ads_errstr(status));
 779                 return status;
 780         }
 781
 782         if (func_level >= DS_DOMAIN_FUNCTION_2008) {
 783                 status = libnet_join_set_etypes(mem_ctx, r);
 784                 if (!ADS_ERR_OK(status)) {
 785                         libnet_join_set_error_string(mem_ctx, r,
 786                                 "failed to set machine kerberos encryption types: %s",
 787                                 ads_errstr(status));
 788                         return status;
 789                 }
 790         }
 791
 792         if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
 793                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 794         }
 795
 796         if (!libnet_join_create_keytab(mem_ctx, r)) {
 797                 libnet_join_set_error_string(mem_ctx, r,
 798                         "failed to create kerberos keytab");
 799                 return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
 800         }
 801
 802         return ADS_SUCCESS;
 803 }
 804 #endif /* HAVE_ADS */
 805
 806 /****************************************************************
 807  Store the machine password and domain SID
 808 ****************************************************************/
 809
 810 static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
 811                                                  struct libnet_JoinCtx *r)
 812 {
 813         if (!secrets_store_domain_sid(r->out.netbios_domain_name,
 814                                       r->out.domain_sid))
 815         {
 816                 DEBUG(1,("Failed to save domain sid\n"));
 817                 return false;
 818         }
 819
 820         if (!secrets_store_machine_password(r->in.machine_password,
 821                                             r->out.netbios_domain_name,
 822                                             r->in.secure_channel_type))
 823         {
 824                 DEBUG(1,("Failed to save machine password\n"));
 825                 return false;
 826         }
 827
 828         return true;
 829 }
 830
 831 /****************************************************************
 832  Connect dc's IPC$ share
 833 ****************************************************************/
 834
 835 static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
 836                                            const char *user,
 837                                            const char *domain,
 838                                            const char *pass,
 839                                            bool use_kerberos,
 840                                            struct cli_state **cli)
 841 {
 842         int flags = 0;
 843
 844         if (use_kerberos) {
 845                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
 846         }
 847
 848         if (use_kerberos && pass) {
 849                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 850         }
 851
 852         return cli_full_connection(cli, NULL,
 853                                    dc,
 854                                    NULL, 0,
 855                                    "IPC$", "IPC",
 856                                    user,
 857                                    domain,
 858                                    pass,
 859                                    flags,
 860                                    SMB_SIGNING_DEFAULT);
 861 }
 862
 863 /****************************************************************
 864  Lookup domain dc's info
 865 ****************************************************************/
 866
 867 static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
 868                                           struct libnet_JoinCtx *r,
 869                                           struct cli_state **cli)
 870 {
 871         struct rpc_pipe_client *pipe_hnd = NULL;
 872         struct policy_handle lsa_pol;
 873         NTSTATUS status, result;
 874         union lsa_PolicyInformation *info = NULL;
 875         struct dcerpc_binding_handle *b;
 876
 877         status = libnet_join_connect_dc_ipc(r->in.dc_name,
 878                                             r->in.admin_account,
 879                                             r->in.admin_domain,
 880                                             r->in.admin_password,
 881                                             r->in.use_kerberos,
 882                                             cli);
 883         if (!NT_STATUS_IS_OK(status)) {
 884                 goto done;
 885         }
 886
 887         status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc,
 888                                           &pipe_hnd);
 889         if (!NT_STATUS_IS_OK(status)) {
 890                 DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
 891                         nt_errstr(status)));
 892                 goto done;
 893         }
 894
 895         b = pipe_hnd->binding_handle;
 896
 897         status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
 898                                         SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
 899         if (!NT_STATUS_IS_OK(status)) {
 900                 goto done;
 901         }
 902
 903         status = dcerpc_lsa_QueryInfoPolicy2(b, mem_ctx,
 904                                              &lsa_pol,
 905                                              LSA_POLICY_INFO_DNS,
 906                                              &info,
 907                                              &result);
 908         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(result)) {
 909                 r->out.domain_is_ad = true;
 910                 r->out.netbios_domain_name = info->dns.name.string;
 911                 r->out.dns_domain_name = info->dns.dns_domain.string;
 912                 r->out.forest_name = info->dns.dns_forest.string;
 913                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
 914                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 915         }
 916
 917         if (!NT_STATUS_IS_OK(status)) {
 918                 status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
 919                                                     &lsa_pol,
 920                                                     LSA_POLICY_INFO_ACCOUNT_DOMAIN,
 921                                                     &info,
 922                                                     &result);
 923                 if (!NT_STATUS_IS_OK(status)) {
 924                         goto done;
 925                 }
 926                 if (!NT_STATUS_IS_OK(result)) {
 927                         status = result;
 928                         goto done;
 929                 }
 930
 931                 r->out.netbios_domain_name = info->account_domain.name.string;
 932                 r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
 933                 NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
 934         }
 935
 936         dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
 937         TALLOC_FREE(pipe_hnd);
 938
 939  done:
 940         return status;
 941 }
 942
 943 /****************************************************************
 944  Do the domain join unsecure
 945 ****************************************************************/
 946
 947 static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
 948                                                     struct libnet_JoinCtx *r,
 949                                                     struct cli_state *cli)
 950 {
 951         TALLOC_CTX *frame = talloc_stackframe();
 952         struct rpc_pipe_client *netlogon_pipe = NULL;
 953         struct netlogon_creds_cli_context *netlogon_creds = NULL;
 954         struct samr_Password current_nt_hash;
 955         const char *account_name = NULL;
 956         NTSTATUS status;
 957
 958         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon,
 959                                           &netlogon_pipe);
 960         if (!NT_STATUS_IS_OK(status)) {
 961                 TALLOC_FREE(frame);
 962                 return status;
 963         }
 964
 965         if (!r->in.machine_password) {
 966                 r->in.machine_password = generate_random_password(mem_ctx,
 967                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
 968                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
 969                 if (r->in.machine_password == NULL) {
 970                         TALLOC_FREE(frame);
 971                         return NT_STATUS_NO_MEMORY;
 972                 }
 973         }
 974
 975         /* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
 976         E_md4hash(r->in.admin_password, current_nt_hash.hash);
 977
 978         account_name = talloc_asprintf(frame, "%s$",
 979                                        r->in.machine_name);
 980         if (account_name == NULL) {
 981                 TALLOC_FREE(frame);
 982                 return NT_STATUS_NO_MEMORY;
 983         }
 984
 985         status = rpccli_create_netlogon_creds(netlogon_pipe->desthost,
 986                                               r->in.domain_name,
 987                                               account_name,
 988                                               r->in.secure_channel_type,
 989                                               r->in.msg_ctx,
 990                                               frame,
 991                                               &netlogon_creds);
 992         if (!NT_STATUS_IS_OK(status)) {
 993                 TALLOC_FREE(frame);
 994                 return status;
 995         }
 996
 997         status = rpccli_setup_netlogon_creds(cli, NCACN_NP,
 998                                              netlogon_creds,
 999                                              true, /* force_reauth */
1000                                              current_nt_hash,
1001                                              NULL); /* previous_nt_hash */
1002         if (!NT_STATUS_IS_OK(status)) {
1003                 TALLOC_FREE(frame);
1004                 return status;
1005         }
1006
1007         status = netlogon_creds_cli_ServerPasswordSet(netlogon_creds,
1008                                                       netlogon_pipe->binding_handle,
1009                                                       r->in.machine_password,
1010                                                       NULL); /* new_version */
1011         if (!NT_STATUS_IS_OK(status)) {
1012                 TALLOC_FREE(frame);
1013                 return status;
1014         }
1015
1016         TALLOC_FREE(frame);
1017         return NT_STATUS_OK;
1018 }
1019
1020 /****************************************************************
1021  Do the domain join
1022 ****************************************************************/
1023
1024 static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
1025                                            struct libnet_JoinCtx *r,
1026                                            struct cli_state *cli)
1027 {
1028         struct rpc_pipe_client *pipe_hnd = NULL;
1029         struct policy_handle sam_pol, domain_pol, user_pol;
1030         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1031         char *acct_name;
1032         struct lsa_String lsa_acct_name;
1033         uint32_t user_rid;
1034         uint32_t acct_flags = ACB_WSTRUST;
1035         struct samr_Ids user_rids;
1036         struct samr_Ids name_types;
1037         union samr_UserInfo user_info;
1038         struct dcerpc_binding_handle *b = NULL;
1039         unsigned int old_timeout = 0;
1040
1041         DATA_BLOB session_key = data_blob_null;
1042         struct samr_CryptPassword crypt_pwd;
1043         struct samr_CryptPasswordEx crypt_pwd_ex;
1044
1045         ZERO_STRUCT(sam_pol);
1046         ZERO_STRUCT(domain_pol);
1047         ZERO_STRUCT(user_pol);
1048
1049         switch (r->in.secure_channel_type) {
1050         case SEC_CHAN_WKSTA:
1051                 acct_flags = ACB_WSTRUST;
1052                 break;
1053         case SEC_CHAN_BDC:
1054                 acct_flags = ACB_SVRTRUST;
1055                 break;
1056         default:
1057                 return NT_STATUS_INVALID_PARAMETER;
1058         }
1059
1060         if (!r->in.machine_password) {
1061                 r->in.machine_password = generate_random_password(mem_ctx,
1062                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
1063                                 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
1064                 NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
1065         }
1066
1067         /* Open the domain */
1068
1069         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr,
1070                                           &pipe_hnd);
1071         if (!NT_STATUS_IS_OK(status)) {
1072                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1073                         nt_errstr(status)));
1074                 goto done;
1075         }
1076
1077         b = pipe_hnd->binding_handle;
1078
1079         status = cli_get_session_key(mem_ctx, pipe_hnd, &session_key);
1080         if (!NT_STATUS_IS_OK(status)) {
1081                 DEBUG(0,("Error getting session_key of SAM pipe. Error was %s\n",
1082                         nt_errstr(status)));
1083                 goto done;
1084         }
1085
1086         status = dcerpc_samr_Connect2(b, mem_ctx,
1087                                       pipe_hnd->desthost,
1088                                       SAMR_ACCESS_ENUM_DOMAINS
1089                                       | SAMR_ACCESS_LOOKUP_DOMAIN,
1090                                       &sam_pol,
1091                                       &result);
1092         if (!NT_STATUS_IS_OK(status)) {
1093                 goto done;
1094         }
1095         if (!NT_STATUS_IS_OK(result)) {
1096                 status = result;
1097                 goto done;
1098         }
1099
1100         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1101                                         &sam_pol,
1102                                         SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
1103                                         | SAMR_DOMAIN_ACCESS_CREATE_USER
1104                                         | SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
1105                                         r->out.domain_sid,
1106                                         &domain_pol,
1107                                         &result);
1108         if (!NT_STATUS_IS_OK(status)) {
1109                 goto done;
1110         }
1111         if (!NT_STATUS_IS_OK(result)) {
1112                 status = result;
1113                 goto done;
1114         }
1115
1116         /* Create domain user */
1117
1118         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1119         if (!strlower_m(acct_name)) {
1120                 status = NT_STATUS_INVALID_PARAMETER;
1121                 goto done;
1122         }
1123
1124         init_lsa_String(&lsa_acct_name, acct_name);
1125
1126         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
1127                 uint32_t access_desired =
1128                         SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
1129                         SEC_STD_WRITE_DAC | SEC_STD_DELETE |
1130                         SAMR_USER_ACCESS_SET_PASSWORD |
1131                         SAMR_USER_ACCESS_GET_ATTRIBUTES |
1132                         SAMR_USER_ACCESS_SET_ATTRIBUTES;
1133                 uint32_t access_granted = 0;
1134
1135                 DEBUG(10,("Creating account with desired access mask: %d\n",
1136                         access_desired));
1137
1138                 status = dcerpc_samr_CreateUser2(b, mem_ctx,
1139                                                  &domain_pol,
1140                                                  &lsa_acct_name,
1141                                                  acct_flags,
1142                                                  access_desired,
1143                                                  &user_pol,
1144                                                  &access_granted,
1145                                                  &user_rid,
1146                                                  &result);
1147                 if (!NT_STATUS_IS_OK(status)) {
1148                         goto done;
1149                 }
1150
1151                 status = result;
1152                 if (!NT_STATUS_IS_OK(status) &&
1153                     !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1154
1155                         DEBUG(10,("Creation of workstation account failed: %s\n",
1156                                 nt_errstr(status)));
1157
1158                         /* If NT_STATUS_ACCESS_DENIED then we have a valid
1159                            username/password combo but the user does not have
1160                            administrator access. */
1161
1162                         if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
1163                                 libnet_join_set_error_string(mem_ctx, r,
1164                                         "User specified does not have "
1165                                         "administrator privileges");
1166                         }
1167
1168                         goto done;
1169                 }
1170
1171                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
1172                         if (!(r->in.join_flags &
1173                               WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
1174                                 goto done;
1175                         }
1176                 }
1177
1178                 /* We *must* do this.... don't ask... */
1179
1180                 if (NT_STATUS_IS_OK(status)) {
1181                         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1182                 }
1183         }
1184
1185         status = dcerpc_samr_LookupNames(b, mem_ctx,
1186                                          &domain_pol,
1187                                          1,
1188                                          &lsa_acct_name,
1189                                          &user_rids,
1190                                          &name_types,
1191                                          &result);
1192         if (!NT_STATUS_IS_OK(status)) {
1193                 goto done;
1194         }
1195         if (!NT_STATUS_IS_OK(result)) {
1196                 status = result;
1197                 goto done;
1198         }
1199         if (user_rids.count != 1) {
1200                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1201                 goto done;
1202         }
1203         if (name_types.count != 1) {
1204                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1205                 goto done;
1206         }
1207
1208         if (name_types.ids[0] != SID_NAME_USER) {
1209                 DEBUG(0,("%s is not a user account (type=%d)\n",
1210                         acct_name, name_types.ids[0]));
1211                 status = NT_STATUS_INVALID_WORKSTATION;
1212                 goto done;
1213         }
1214
1215         user_rid = user_rids.ids[0];
1216
1217         /* Open handle on user */
1218
1219         status = dcerpc_samr_OpenUser(b, mem_ctx,
1220                                       &domain_pol,
1221                                       SEC_FLAG_MAXIMUM_ALLOWED,
1222                                       user_rid,
1223                                       &user_pol,
1224                                       &result);
1225         if (!NT_STATUS_IS_OK(status)) {
1226                 goto done;
1227         }
1228         if (!NT_STATUS_IS_OK(result)) {
1229                 status = result;
1230                 goto done;
1231         }
1232
1233         /* Fill in the additional account flags now */
1234
1235         acct_flags |= ACB_PWNOEXP;
1236
1237         /* Set account flags on machine account */
1238         ZERO_STRUCT(user_info.info16);
1239         user_info.info16.acct_flags = acct_flags;
1240
1241         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1242                                          &user_pol,
1243                                          16,
1244                                          &user_info,
1245                                          &result);
1246         if (!NT_STATUS_IS_OK(status)) {
1247                 dcerpc_samr_DeleteUser(b, mem_ctx,
1248                                        &user_pol,
1249                                        &result);
1250
1251                 libnet_join_set_error_string(mem_ctx, r,
1252                         "Failed to set account flags for machine account (%s)\n",
1253                         nt_errstr(status));
1254                 goto done;
1255         }
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 account flags for machine account (%s)\n",
1266                         nt_errstr(status));
1267                 goto done;
1268         }
1269
1270         /* Set password on machine account - first try level 26 */
1271
1272         /*
1273          * increase the timeout as password filter modules on the DC
1274          * might delay the operation for a significant amount of time
1275          */
1276         old_timeout = rpccli_set_timeout(pipe_hnd, 600000);
1277
1278         init_samr_CryptPasswordEx(r->in.machine_password,
1279                                   &session_key,
1280                                   &crypt_pwd_ex);
1281
1282         user_info.info26.password = crypt_pwd_ex;
1283         user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1284
1285         status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1286                                           &user_pol,
1287                                           26,
1288                                           &user_info,
1289                                           &result);
1290
1291         if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
1292
1293                 /* retry with level 24 */
1294
1295                 init_samr_CryptPassword(r->in.machine_password,
1296                                         &session_key,
1297                                         &crypt_pwd);
1298
1299                 user_info.info24.password = crypt_pwd;
1300                 user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
1301
1302                 status = dcerpc_samr_SetUserInfo2(b, mem_ctx,
1303                                                   &user_pol,
1304                                                   24,
1305                                                   &user_info,
1306                                                   &result);
1307         }
1308
1309         old_timeout = rpccli_set_timeout(pipe_hnd, old_timeout);
1310
1311         if (!NT_STATUS_IS_OK(status)) {
1312
1313                 dcerpc_samr_DeleteUser(b, mem_ctx,
1314                                        &user_pol,
1315                                        &result);
1316
1317                 libnet_join_set_error_string(mem_ctx, r,
1318                         "Failed to set password for machine account (%s)\n",
1319                         nt_errstr(status));
1320                 goto done;
1321         }
1322         if (!NT_STATUS_IS_OK(result)) {
1323                 status = result;
1324
1325                 dcerpc_samr_DeleteUser(b, mem_ctx,
1326                                        &user_pol,
1327                                        &result);
1328
1329                 libnet_join_set_error_string(mem_ctx, r,
1330                         "Failed to set password for machine account (%s)\n",
1331                         nt_errstr(status));
1332                 goto done;
1333         }
1334
1335         status = NT_STATUS_OK;
1336
1337  done:
1338         if (!pipe_hnd) {
1339                 return status;
1340         }
1341
1342         data_blob_clear_free(&session_key);
1343
1344         if (is_valid_policy_hnd(&sam_pol)) {
1345                 dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1346         }
1347         if (is_valid_policy_hnd(&domain_pol)) {
1348                 dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1349         }
1350         if (is_valid_policy_hnd(&user_pol)) {
1351                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1352         }
1353         TALLOC_FREE(pipe_hnd);
1354
1355         return status;
1356 }
1357
1358 /****************************************************************
1359 ****************************************************************/
1360
1361 NTSTATUS libnet_join_ok(struct messaging_context *msg_ctx,
1362                         const char *netbios_domain_name,
1363                         const char *dc_name,
1364                         const bool use_kerberos)
1365 {
1366         TALLOC_CTX *frame = talloc_stackframe();
1367         struct cli_state *cli = NULL;
1368         struct rpc_pipe_client *netlogon_pipe = NULL;
1369         struct cli_credentials *cli_creds = NULL;
1370         struct netlogon_creds_cli_context *netlogon_creds = NULL;
1371         struct netlogon_creds_CredentialState *creds = NULL;
1372         uint32_t netlogon_flags = 0;
1373         NTSTATUS status;
1374         const char *machine_account = NULL;
1375         const char *machine_domain = NULL;
1376         const char *machine_password = NULL;
1377         int flags = 0;
1378
1379         if (!dc_name) {
1380                 TALLOC_FREE(frame);
1381                 return NT_STATUS_INVALID_PARAMETER;
1382         }
1383
1384         if (!secrets_init()) {
1385                 TALLOC_FREE(frame);
1386                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1387         }
1388
1389         status = pdb_get_trust_credentials(netbios_domain_name, NULL,
1390                                            frame, &cli_creds);
1391         if (!NT_STATUS_IS_OK(status)) {
1392                 TALLOC_FREE(frame);
1393                 return status;
1394         }
1395
1396         /* we don't want any old password */
1397         cli_credentials_set_old_password(cli_creds, NULL, CRED_SPECIFIED);
1398
1399         if (use_kerberos) {
1400                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
1401         }
1402
1403         machine_account = cli_credentials_get_username(cli_creds);
1404         machine_domain = cli_credentials_get_domain(cli_creds);
1405         machine_password = cli_credentials_get_password(cli_creds);
1406
1407         status = cli_full_connection(&cli, NULL,
1408                                      dc_name,
1409                                      NULL, 0,
1410                                      "IPC$", "IPC",
1411                                      machine_account,
1412                                      machine_domain,
1413                                      machine_password,
1414                                      flags,
1415                                      SMB_SIGNING_DEFAULT);
1416
1417         if (!NT_STATUS_IS_OK(status)) {
1418                 status = cli_full_connection(&cli, NULL,
1419                                              dc_name,
1420                                              NULL, 0,
1421                                              "IPC$", "IPC",
1422                                              "",
1423                                              NULL,
1424                                              "",
1425                                              0,
1426                                              SMB_SIGNING_DEFAULT);
1427         }
1428
1429         if (!NT_STATUS_IS_OK(status)) {
1430                 TALLOC_FREE(frame);
1431                 return status;
1432         }
1433
1434         status = rpccli_create_netlogon_creds_with_creds(cli_creds,
1435                                                          dc_name,
1436                                                          msg_ctx,
1437                                                          frame,
1438                                                          &netlogon_creds);
1439         if (!NT_STATUS_IS_OK(status)) {
1440                 cli_shutdown(cli);
1441                 TALLOC_FREE(frame);
1442                 return status;
1443         }
1444
1445         status = rpccli_setup_netlogon_creds_with_creds(cli, NCACN_NP,
1446                                                         netlogon_creds,
1447                                                         true, /* force_reauth */
1448                                                         cli_creds);
1449         if (!NT_STATUS_IS_OK(status)) {
1450                 DEBUG(0,("connect_to_domain_password_server: "
1451                          "unable to open the domain client session to "
1452                          "machine %s. Flags[0x%08X] Error was : %s.\n",
1453                          dc_name, (unsigned)netlogon_flags,
1454                          nt_errstr(status)));
1455                 cli_shutdown(cli);
1456                 TALLOC_FREE(frame);
1457                 return status;
1458         }
1459
1460         status = netlogon_creds_cli_get(netlogon_creds,
1461                                         talloc_tos(),
1462                                         &creds);
1463         if (!NT_STATUS_IS_OK(status)) {
1464                 cli_shutdown(cli);
1465                 TALLOC_FREE(frame);
1466                 return status;
1467         }
1468         netlogon_flags = creds->negotiate_flags;
1469         TALLOC_FREE(creds);
1470
1471         if (!(netlogon_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
1472                 cli_shutdown(cli);
1473                 TALLOC_FREE(frame);
1474                 return NT_STATUS_OK;
1475         }
1476
1477         status = cli_rpc_pipe_open_schannel_with_creds(
1478                 cli, &ndr_table_netlogon, NCACN_NP,
1479                 cli_creds,
1480                 netlogon_creds, &netlogon_pipe);
1481
1482         TALLOC_FREE(netlogon_pipe);
1483
1484         if (!NT_STATUS_IS_OK(status)) {
1485                 DEBUG(0,("libnet_join_ok: failed to open schannel session "
1486                         "on netlogon pipe to server %s for domain %s. "
1487                         "Error was %s\n",
1488                         smbXcli_conn_remote_name(cli->conn),
1489                         netbios_domain_name, nt_errstr(status)));
1490                 cli_shutdown(cli);
1491                 TALLOC_FREE(frame);
1492                 return status;
1493         }
1494
1495         cli_shutdown(cli);
1496         TALLOC_FREE(frame);
1497         return NT_STATUS_OK;
1498 }
1499
1500 /****************************************************************
1501 ****************************************************************/
1502
1503 static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
1504                                       struct libnet_JoinCtx *r)
1505 {
1506         NTSTATUS status;
1507
1508         status = libnet_join_ok(r->in.msg_ctx,
1509                                 r->out.netbios_domain_name,
1510                                 r->in.dc_name,
1511                                 r->in.use_kerberos);
1512         if (!NT_STATUS_IS_OK(status)) {
1513                 libnet_join_set_error_string(mem_ctx, r,
1514                         "failed to verify domain membership after joining: %s",
1515                         get_friendly_nt_error_msg(status));
1516                 return WERR_SETUP_NOT_JOINED;
1517         }
1518
1519         return WERR_OK;
1520 }
1521
1522 /****************************************************************
1523 ****************************************************************/
1524
1525 static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
1526                                                     struct libnet_UnjoinCtx *r)
1527 {
1528         if (!secrets_delete_machine_password_ex(lp_workgroup())) {
1529                 return false;
1530         }
1531
1532         if (!secrets_delete_domain_sid(lp_workgroup())) {
1533                 return false;
1534         }
1535
1536         return true;
1537 }
1538
1539 /****************************************************************
1540 ****************************************************************/
1541
1542 static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
1543                                              struct libnet_UnjoinCtx *r)
1544 {
1545         struct cli_state *cli = NULL;
1546         struct rpc_pipe_client *pipe_hnd = NULL;
1547         struct policy_handle sam_pol, domain_pol, user_pol;
1548         NTSTATUS status = NT_STATUS_UNSUCCESSFUL, result;
1549         char *acct_name;
1550         uint32_t user_rid;
1551         struct lsa_String lsa_acct_name;
1552         struct samr_Ids user_rids;
1553         struct samr_Ids name_types;
1554         union samr_UserInfo *info = NULL;
1555         struct dcerpc_binding_handle *b = NULL;
1556
1557         ZERO_STRUCT(sam_pol);
1558         ZERO_STRUCT(domain_pol);
1559         ZERO_STRUCT(user_pol);
1560
1561         status = libnet_join_connect_dc_ipc(r->in.dc_name,
1562                                             r->in.admin_account,
1563                                             r->in.admin_domain,
1564                                             r->in.admin_password,
1565                                             r->in.use_kerberos,
1566                                             &cli);
1567         if (!NT_STATUS_IS_OK(status)) {
1568                 goto done;
1569         }
1570
1571         /* Open the domain */
1572
1573         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr,
1574                                           &pipe_hnd);
1575         if (!NT_STATUS_IS_OK(status)) {
1576                 DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
1577                         nt_errstr(status)));
1578                 goto done;
1579         }
1580
1581         b = pipe_hnd->binding_handle;
1582
1583         status = dcerpc_samr_Connect2(b, mem_ctx,
1584                                       pipe_hnd->desthost,
1585                                       SEC_FLAG_MAXIMUM_ALLOWED,
1586                                       &sam_pol,
1587                                       &result);
1588         if (!NT_STATUS_IS_OK(status)) {
1589                 goto done;
1590         }
1591         if (!NT_STATUS_IS_OK(result)) {
1592                 status = result;
1593                 goto done;
1594         }
1595
1596         status = dcerpc_samr_OpenDomain(b, mem_ctx,
1597                                         &sam_pol,
1598                                         SEC_FLAG_MAXIMUM_ALLOWED,
1599                                         r->in.domain_sid,
1600                                         &domain_pol,
1601                                         &result);
1602         if (!NT_STATUS_IS_OK(status)) {
1603                 goto done;
1604         }
1605         if (!NT_STATUS_IS_OK(result)) {
1606                 status = result;
1607                 goto done;
1608         }
1609
1610         /* Create domain user */
1611
1612         acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
1613         if (!strlower_m(acct_name)) {
1614                 status = NT_STATUS_INVALID_PARAMETER;
1615                 goto done;
1616         }
1617
1618         init_lsa_String(&lsa_acct_name, acct_name);
1619
1620         status = dcerpc_samr_LookupNames(b, mem_ctx,
1621                                          &domain_pol,
1622                                          1,
1623                                          &lsa_acct_name,
1624                                          &user_rids,
1625                                          &name_types,
1626                                          &result);
1627
1628         if (!NT_STATUS_IS_OK(status)) {
1629                 goto done;
1630         }
1631         if (!NT_STATUS_IS_OK(result)) {
1632                 status = result;
1633                 goto done;
1634         }
1635         if (user_rids.count != 1) {
1636                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1637                 goto done;
1638         }
1639         if (name_types.count != 1) {
1640                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
1641                 goto done;
1642         }
1643
1644         if (name_types.ids[0] != SID_NAME_USER) {
1645                 DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
1646                         name_types.ids[0]));
1647                 status = NT_STATUS_INVALID_WORKSTATION;
1648                 goto done;
1649         }
1650
1651         user_rid = user_rids.ids[0];
1652
1653         /* Open handle on user */
1654
1655         status = dcerpc_samr_OpenUser(b, mem_ctx,
1656                                       &domain_pol,
1657                                       SEC_FLAG_MAXIMUM_ALLOWED,
1658                                       user_rid,
1659                                       &user_pol,
1660                                       &result);
1661         if (!NT_STATUS_IS_OK(status)) {
1662                 goto done;
1663         }
1664         if (!NT_STATUS_IS_OK(result)) {
1665                 status = result;
1666                 goto done;
1667         }
1668
1669         /* Get user info */
1670
1671         status = dcerpc_samr_QueryUserInfo(b, mem_ctx,
1672                                            &user_pol,
1673                                            16,
1674                                            &info,
1675                                            &result);
1676         if (!NT_STATUS_IS_OK(status)) {
1677                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1678                 goto done;
1679         }
1680         if (!NT_STATUS_IS_OK(result)) {
1681                 status = result;
1682                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1683                 goto done;
1684         }
1685
1686         /* now disable and setuser info */
1687
1688         info->info16.acct_flags |= ACB_DISABLED;
1689
1690         status = dcerpc_samr_SetUserInfo(b, mem_ctx,
1691                                          &user_pol,
1692                                          16,
1693                                          info,
1694                                          &result);
1695         if (!NT_STATUS_IS_OK(status)) {
1696                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1697                 goto done;
1698         }
1699         if (!NT_STATUS_IS_OK(result)) {
1700                 status = result;
1701                 dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1702                 goto done;
1703         }
1704         status = result;
1705         dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
1706
1707 done:
1708         if (pipe_hnd && b) {
1709                 if (is_valid_policy_hnd(&domain_pol)) {
1710                         dcerpc_samr_Close(b, mem_ctx, &domain_pol, &result);
1711                 }
1712                 if (is_valid_policy_hnd(&sam_pol)) {
1713                         dcerpc_samr_Close(b, mem_ctx, &sam_pol, &result);
1714                 }
1715                 TALLOC_FREE(pipe_hnd);
1716         }
1717
1718         if (cli) {
1719                 cli_shutdown(cli);
1720         }
1721
1722         return status;
1723 }
1724
1725 /****************************************************************
1726 ****************************************************************/
1727
1728 static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
1729 {
1730         WERROR werr = WERR_OK;
1731         sbcErr err;
1732         struct smbconf_ctx *ctx;
1733
1734         err = smbconf_init_reg(r, &ctx, NULL);
1735         if (!SBC_ERROR_IS_OK(err)) {
1736                 werr = WERR_NO_SUCH_SERVICE;
1737                 goto done;
1738         }
1739
1740         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
1741
1742                 err = smbconf_set_global_parameter(ctx, "security", "user");
1743                 if (!SBC_ERROR_IS_OK(err)) {
1744                         werr = WERR_NO_SUCH_SERVICE;
1745                         goto done;
1746                 }
1747
1748                 err = smbconf_set_global_parameter(ctx, "workgroup",
1749                                                    r->in.domain_name);
1750                 if (!SBC_ERROR_IS_OK(err)) {
1751                         werr = WERR_NO_SUCH_SERVICE;
1752                         goto done;
1753                 }
1754
1755                 smbconf_delete_global_parameter(ctx, "realm");
1756                 goto done;
1757         }
1758
1759         err = smbconf_set_global_parameter(ctx, "security", "domain");
1760         if (!SBC_ERROR_IS_OK(err)) {
1761                 werr = WERR_NO_SUCH_SERVICE;
1762                 goto done;
1763         }
1764
1765         err = smbconf_set_global_parameter(ctx, "workgroup",
1766                                            r->out.netbios_domain_name);
1767         if (!SBC_ERROR_IS_OK(err)) {
1768                 werr = WERR_NO_SUCH_SERVICE;
1769                 goto done;
1770         }
1771
1772         if (r->out.domain_is_ad) {
1773                 err = smbconf_set_global_parameter(ctx, "security", "ads");
1774                 if (!SBC_ERROR_IS_OK(err)) {
1775                         werr = WERR_NO_SUCH_SERVICE;
1776                         goto done;
1777                 }
1778
1779                 err = smbconf_set_global_parameter(ctx, "realm",
1780                                                    r->out.dns_domain_name);
1781                 if (!SBC_ERROR_IS_OK(err)) {
1782                         werr = WERR_NO_SUCH_SERVICE;
1783                         goto done;
1784                 }
1785         }
1786
1787  done:
1788         smbconf_shutdown(ctx);
1789         return werr;
1790 }
1791
1792 /****************************************************************
1793 ****************************************************************/
1794
1795 static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
1796 {
1797         WERROR werr = WERR_OK;
1798         sbcErr err;
1799         struct smbconf_ctx *ctx;
1800
1801         err = smbconf_init_reg(r, &ctx, NULL);
1802         if (!SBC_ERROR_IS_OK(err)) {
1803                 werr = WERR_NO_SUCH_SERVICE;
1804                 goto done;
1805         }
1806
1807         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
1808
1809                 err = smbconf_set_global_parameter(ctx, "security", "user");
1810                 if (!SBC_ERROR_IS_OK(err)) {
1811                         werr = WERR_NO_SUCH_SERVICE;
1812                         goto done;
1813                 }
1814
1815                 err = smbconf_delete_global_parameter(ctx, "workgroup");
1816                 if (!SBC_ERROR_IS_OK(err)) {
1817                         werr = WERR_NO_SUCH_SERVICE;
1818                         goto done;
1819                 }
1820
1821                 smbconf_delete_global_parameter(ctx, "realm");
1822         }
1823
1824  done:
1825         smbconf_shutdown(ctx);
1826         return werr;
1827 }
1828
1829 /****************************************************************
1830 ****************************************************************/
1831
1832 static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
1833 {
1834         WERROR werr;
1835
1836         if (!W_ERROR_IS_OK(r->out.result)) {
1837                 return r->out.result;
1838         }
1839
1840         if (!r->in.modify_config) {
1841                 return WERR_OK;
1842         }
1843
1844         werr = do_join_modify_vals_config(r);
1845         if (!W_ERROR_IS_OK(werr)) {
1846                 return werr;
1847         }
1848
1849         lp_load_global(get_dyn_CONFIGFILE());
1850
1851         r->out.modified_config = true;
1852         r->out.result = werr;
1853
1854         return werr;
1855 }
1856
1857 /****************************************************************
1858 ****************************************************************/
1859
1860 static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
1861 {
1862         WERROR werr;
1863
1864         if (!W_ERROR_IS_OK(r->out.result)) {
1865                 return r->out.result;
1866         }
1867
1868         if (!r->in.modify_config) {
1869                 return WERR_OK;
1870         }
1871
1872         werr = do_unjoin_modify_vals_config(r);
1873         if (!W_ERROR_IS_OK(werr)) {
1874                 return werr;
1875         }
1876
1877         lp_load_global(get_dyn_CONFIGFILE());
1878
1879         r->out.modified_config = true;
1880         r->out.result = werr;
1881
1882         return werr;
1883 }
1884
1885 /****************************************************************
1886 ****************************************************************/
1887
1888 static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
1889                                    const char *domain_str,
1890                                    const char **domain_p,
1891                                    const char **dc_p)
1892 {
1893         char *domain = NULL;
1894         char *dc = NULL;
1895         const char *p = NULL;
1896
1897         if (!domain_str || !domain_p || !dc_p) {
1898                 return false;
1899         }
1900
1901         p = strchr_m(domain_str, '\\');
1902
1903         if (p != NULL) {
1904                 domain = talloc_strndup(mem_ctx, domain_str,
1905                                          PTR_DIFF(p, domain_str));
1906                 dc = talloc_strdup(mem_ctx, p+1);
1907                 if (!dc) {
1908                         return false;
1909                 }
1910         } else {
1911                 domain = talloc_strdup(mem_ctx, domain_str);
1912                 dc = NULL;
1913         }
1914         if (!domain) {
1915                 return false;
1916         }
1917
1918         *domain_p = domain;
1919
1920         if (!*dc_p && dc) {
1921                 *dc_p = dc;
1922         }
1923
1924         return true;
1925 }
1926
1927 /****************************************************************
1928 ****************************************************************/
1929
1930 static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
1931                                          struct libnet_JoinCtx *r)
1932 {
1933         if (!r->in.domain_name) {
1934                 libnet_join_set_error_string(mem_ctx, r,
1935                         "No domain name defined");
1936                 return WERR_INVALID_PARAM;
1937         }
1938
1939         if (strlen(r->in.machine_name) > 15) {
1940                 libnet_join_set_error_string(mem_ctx, r,
1941                         "Our netbios name can be at most 15 chars long, "
1942                          "\"%s\" is %u chars long\n",
1943                          r->in.machine_name,
1944                          (unsigned int)strlen(r->in.machine_name));
1945                 return WERR_INVALID_PARAM;
1946         }
1947
1948         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
1949                                     &r->in.domain_name,
1950                                     &r->in.dc_name)) {
1951                 libnet_join_set_error_string(mem_ctx, r,
1952                         "Failed to parse domain name");
1953                 return WERR_INVALID_PARAM;
1954         }
1955
1956         if (!r->in.admin_domain) {
1957                 char *admin_domain = NULL;
1958                 char *admin_account = NULL;
1959                 split_domain_user(mem_ctx,
1960                                   r->in.admin_account,
1961                                   &admin_domain,
1962                                   &admin_account);
1963                 r->in.admin_domain = admin_domain;
1964                 r->in.admin_account = admin_account;
1965         }
1966
1967         if (!secrets_init()) {
1968                 libnet_join_set_error_string(mem_ctx, r,
1969                         "Unable to open secrets database");
1970                 return WERR_CAN_NOT_COMPLETE;
1971         }
1972
1973         return WERR_OK;
1974 }
1975
1976 /****************************************************************
1977 ****************************************************************/
1978
1979 static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
1980 {
1981         NTSTATUS status;
1982
1983         /* Try adding dom admins to builtin\admins. Only log failures. */
1984         status = create_builtin_administrators(domain_sid);
1985         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1986                 DEBUG(10,("Unable to auto-add domain administrators to "
1987                           "BUILTIN\\Administrators during join because "
1988                           "winbindd must be running.\n"));
1989         } else if (!NT_STATUS_IS_OK(status)) {
1990                 DEBUG(5, ("Failed to auto-add domain administrators to "
1991                           "BUILTIN\\Administrators during join: %s\n",
1992                           nt_errstr(status)));
1993         }
1994
1995         /* Try adding dom users to builtin\users. Only log failures. */
1996         status = create_builtin_users(domain_sid);
1997         if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
1998                 DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
1999                           "during join because winbindd must be running.\n"));
2000         } else if (!NT_STATUS_IS_OK(status)) {
2001                 DEBUG(5, ("Failed to auto-add domain administrators to "
2002                           "BUILTIN\\Administrators during join: %s\n",
2003                           nt_errstr(status)));
2004         }
2005 }
2006
2007 /****************************************************************
2008 ****************************************************************/
2009
2010 static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
2011                                           struct libnet_JoinCtx *r)
2012 {
2013         WERROR werr;
2014
2015         if (!W_ERROR_IS_OK(r->out.result)) {
2016                 return r->out.result;
2017         }
2018
2019         werr = do_JoinConfig(r);
2020         if (!W_ERROR_IS_OK(werr)) {
2021                 return werr;
2022         }
2023
2024         if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
2025                 return WERR_OK;
2026         }
2027
2028         saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
2029         if (r->out.dns_domain_name) {
2030                 saf_join_store(r->out.dns_domain_name, r->in.dc_name);
2031         }
2032
2033 #ifdef HAVE_ADS
2034         if (r->out.domain_is_ad &&
2035             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2036                 ADS_STATUS ads_status;
2037
2038                 ads_status  = libnet_join_post_processing_ads(mem_ctx, r);
2039                 if (!ADS_ERR_OK(ads_status)) {
2040                         return WERR_GENERAL_FAILURE;
2041                 }
2042         }
2043 #endif /* HAVE_ADS */
2044
2045         libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
2046
2047         return WERR_OK;
2048 }
2049
2050 /****************************************************************
2051 ****************************************************************/
2052
2053 static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
2054 {
2055         if (r->in.ads) {
2056                 ads_destroy(&r->in.ads);
2057         }
2058
2059         return 0;
2060 }
2061
2062 /****************************************************************
2063 ****************************************************************/
2064
2065 static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
2066 {
2067         if (r->in.ads) {
2068                 ads_destroy(&r->in.ads);
2069         }
2070
2071         return 0;
2072 }
2073
2074 /****************************************************************
2075 ****************************************************************/
2076
2077 WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
2078                            struct libnet_JoinCtx **r)
2079 {
2080         struct libnet_JoinCtx *ctx;
2081
2082         ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
2083         if (!ctx) {
2084                 return WERR_NOMEM;
2085         }
2086
2087         talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
2088
2089         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
2090         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
2091
2092         ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
2093
2094         *r = ctx;
2095
2096         return WERR_OK;
2097 }
2098
2099 /****************************************************************
2100 ****************************************************************/
2101
2102 WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
2103                              struct libnet_UnjoinCtx **r)
2104 {
2105         struct libnet_UnjoinCtx *ctx;
2106
2107         ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
2108         if (!ctx) {
2109                 return WERR_NOMEM;
2110         }
2111
2112         talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
2113
2114         ctx->in.machine_name = talloc_strdup(mem_ctx, lp_netbios_name());
2115         W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
2116
2117         *r = ctx;
2118
2119         return WERR_OK;
2120 }
2121
2122 /****************************************************************
2123 ****************************************************************/
2124
2125 static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
2126                                        struct libnet_JoinCtx *r)
2127 {
2128         bool valid_security = false;
2129         bool valid_workgroup = false;
2130         bool valid_realm = false;
2131
2132         /* check if configuration is already set correctly */
2133
2134         valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
2135
2136         switch (r->out.domain_is_ad) {
2137                 case false:
2138                         valid_security = (lp_security() == SEC_DOMAIN)
2139                                 || (lp_server_role() == ROLE_DOMAIN_PDC)
2140                                 || (lp_server_role() == ROLE_DOMAIN_BDC);
2141                         if (valid_workgroup && valid_security) {
2142                                 /* nothing to be done */
2143                                 return WERR_OK;
2144                         }
2145                         break;
2146                 case true:
2147                         valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
2148                         switch (lp_security()) {
2149                         case SEC_DOMAIN:
2150                         case SEC_ADS:
2151                                 valid_security = true;
2152                         }
2153
2154                         if (valid_workgroup && valid_realm && valid_security) {
2155                                 /* nothing to be done */
2156                                 return WERR_OK;
2157                         }
2158                         break;
2159         }
2160
2161         /* check if we are supposed to manipulate configuration */
2162
2163         if (!r->in.modify_config) {
2164
2165                 char *wrong_conf = talloc_strdup(mem_ctx, "");
2166
2167                 if (!valid_workgroup) {
2168                         wrong_conf = talloc_asprintf_append(wrong_conf,
2169                                 "\"workgroup\" set to '%s', should be '%s'",
2170                                 lp_workgroup(), r->out.netbios_domain_name);
2171                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2172                 }
2173
2174                 if (!valid_realm) {
2175                         wrong_conf = talloc_asprintf_append(wrong_conf,
2176                                 "\"realm\" set to '%s', should be '%s'",
2177                                 lp_realm(), r->out.dns_domain_name);
2178                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2179                 }
2180
2181                 if (!valid_security) {
2182                         const char *sec = NULL;
2183                         switch (lp_security()) {
2184                         case SEC_USER:  sec = "user"; break;
2185                         case SEC_DOMAIN: sec = "domain"; break;
2186                         case SEC_ADS: sec = "ads"; break;
2187                         }
2188                         wrong_conf = talloc_asprintf_append(wrong_conf,
2189                                 "\"security\" set to '%s', should be %s",
2190                                 sec, r->out.domain_is_ad ?
2191                                 "either 'domain' or 'ads'" : "'domain'");
2192                         W_ERROR_HAVE_NO_MEMORY(wrong_conf);
2193                 }
2194
2195                 libnet_join_set_error_string(mem_ctx, r,
2196                         "Invalid configuration (%s) and configuration modification "
2197                         "was not requested", wrong_conf);
2198                 return WERR_CAN_NOT_COMPLETE;
2199         }
2200
2201         /* check if we are able to manipulate configuration */
2202
2203         if (!lp_config_backend_is_registry()) {
2204                 libnet_join_set_error_string(mem_ctx, r,
2205                         "Configuration manipulation requested but not "
2206                         "supported by backend");
2207                 return WERR_NOT_SUPPORTED;
2208         }
2209
2210         return WERR_OK;
2211 }
2212
2213 /****************************************************************
2214 ****************************************************************/
2215
2216 static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
2217                                 struct libnet_JoinCtx *r)
2218 {
2219         NTSTATUS status;
2220         WERROR werr;
2221         struct cli_state *cli = NULL;
2222 #ifdef HAVE_ADS
2223         ADS_STATUS ads_status;
2224 #endif /* HAVE_ADS */
2225
2226         if (!r->in.dc_name) {
2227                 struct netr_DsRGetDCNameInfo *info;
2228                 const char *dc;
2229                 uint32_t name_type_flags = 0;
2230                 if (r->in.domain_name_type == JoinDomNameTypeDNS) {
2231                         name_type_flags = DS_IS_DNS_NAME;
2232                 } else if (r->in.domain_name_type == JoinDomNameTypeNBT) {
2233                         name_type_flags = DS_IS_FLAT_NAME;
2234                 }
2235                 status = dsgetdcname(mem_ctx,
2236                                      r->in.msg_ctx,
2237                                      r->in.domain_name,
2238                                      NULL,
2239                                      NULL,
2240                                      DS_FORCE_REDISCOVERY |
2241                                      DS_DIRECTORY_SERVICE_REQUIRED |
2242                                      DS_WRITABLE_REQUIRED |
2243                                      DS_RETURN_DNS_NAME |
2244                                      name_type_flags,
2245                                      &info);
2246                 if (!NT_STATUS_IS_OK(status)) {
2247                         libnet_join_set_error_string(mem_ctx, r,
2248                                 "failed to find DC for domain %s",
2249                                 r->in.domain_name,
2250                                 get_friendly_nt_error_msg(status));
2251                         return WERR_DCNOTFOUND;
2252                 }
2253
2254                 dc = strip_hostname(info->dc_unc);
2255                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2256                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2257         }
2258
2259         status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
2260         if (!NT_STATUS_IS_OK(status)) {
2261                 libnet_join_set_error_string(mem_ctx, r,
2262                         "failed to lookup DC info for domain '%s' over rpc: %s",
2263                         r->in.domain_name, get_friendly_nt_error_msg(status));
2264                 return ntstatus_to_werror(status);
2265         }
2266
2267         werr = libnet_join_check_config(mem_ctx, r);
2268         if (!W_ERROR_IS_OK(werr)) {
2269                 goto done;
2270         }
2271
2272 #ifdef HAVE_ADS
2273
2274         create_local_private_krb5_conf_for_domain(
2275                 r->out.dns_domain_name, r->out.netbios_domain_name,
2276                 NULL, smbXcli_conn_remote_sockaddr(cli->conn));
2277
2278         if (r->out.domain_is_ad && r->in.account_ou &&
2279             !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
2280
2281                 ads_status = libnet_join_connect_ads(mem_ctx, r);
2282                 if (!ADS_ERR_OK(ads_status)) {
2283                         return WERR_DEFAULT_JOIN_REQUIRED;
2284                 }
2285
2286                 ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
2287                 if (!ADS_ERR_OK(ads_status)) {
2288                         libnet_join_set_error_string(mem_ctx, r,
2289                                 "failed to precreate account in ou %s: %s",
2290                                 r->in.account_ou,
2291                                 ads_errstr(ads_status));
2292                         return WERR_DEFAULT_JOIN_REQUIRED;
2293                 }
2294
2295                 r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
2296         }
2297 #endif /* HAVE_ADS */
2298
2299         if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
2300             (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
2301                 status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
2302         } else {
2303                 status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
2304         }
2305         if (!NT_STATUS_IS_OK(status)) {
2306                 libnet_join_set_error_string(mem_ctx, r,
2307                         "failed to join domain '%s' over rpc: %s",
2308                         r->in.domain_name, get_friendly_nt_error_msg(status));
2309                 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
2310                         return WERR_SETUP_ALREADY_JOINED;
2311                 }
2312                 werr = ntstatus_to_werror(status);
2313                 goto done;
2314         }
2315
2316         if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
2317                 werr = WERR_SETUP_NOT_JOINED;
2318                 goto done;
2319         }
2320
2321         werr = WERR_OK;
2322
2323  done:
2324         if (cli) {
2325                 cli_shutdown(cli);
2326         }
2327
2328         return werr;
2329 }
2330
2331 /****************************************************************
2332 ****************************************************************/
2333
2334 static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
2335                                    struct libnet_JoinCtx *r)
2336 {
2337         WERROR werr;
2338         struct libnet_UnjoinCtx *u = NULL;
2339
2340         werr = libnet_init_UnjoinCtx(mem_ctx, &u);
2341         if (!W_ERROR_IS_OK(werr)) {
2342                 return werr;
2343         }
2344
2345         u->in.debug             = r->in.debug;
2346         u->in.dc_name           = r->in.dc_name;
2347         u->in.domain_name       = r->in.domain_name;
2348         u->in.admin_account     = r->in.admin_account;
2349         u->in.admin_password    = r->in.admin_password;
2350         u->in.modify_config     = r->in.modify_config;
2351         u->in.use_kerberos      = r->in.use_kerberos;
2352         u->in.unjoin_flags      = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
2353                                   WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
2354
2355         werr = libnet_Unjoin(mem_ctx, u);
2356         TALLOC_FREE(u);
2357
2358         return werr;
2359 }
2360
2361 /****************************************************************
2362 ****************************************************************/
2363
2364 WERROR libnet_Join(TALLOC_CTX *mem_ctx,
2365                    struct libnet_JoinCtx *r)
2366 {
2367         WERROR werr;
2368
2369         if (r->in.debug) {
2370                 LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
2371         }
2372
2373         ZERO_STRUCT(r->out);
2374
2375         werr = libnet_join_pre_processing(mem_ctx, r);
2376         if (!W_ERROR_IS_OK(werr)) {
2377                 goto done;
2378         }
2379
2380         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2381                 werr = libnet_DomainJoin(mem_ctx, r);
2382                 if (!W_ERROR_IS_OK(werr)) {
2383                         goto done;
2384                 }
2385         }
2386
2387         werr = libnet_join_post_processing(mem_ctx, r);
2388         if (!W_ERROR_IS_OK(werr)) {
2389                 goto done;
2390         }
2391
2392         if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2393                 werr = libnet_join_post_verify(mem_ctx, r);
2394                 if (!W_ERROR_IS_OK(werr)) {
2395                         libnet_join_rollback(mem_ctx, r);
2396                 }
2397         }
2398
2399  done:
2400         r->out.result = werr;
2401
2402         if (r->in.debug) {
2403                 LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
2404         }
2405         return werr;
2406 }
2407
2408 /****************************************************************
2409 ****************************************************************/
2410
2411 static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
2412                                   struct libnet_UnjoinCtx *r)
2413 {
2414         NTSTATUS status;
2415
2416         if (!r->in.domain_sid) {
2417                 struct dom_sid sid;
2418                 if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
2419                         libnet_unjoin_set_error_string(mem_ctx, r,
2420                                 "Unable to fetch domain sid: are we joined?");
2421                         return WERR_SETUP_NOT_JOINED;
2422                 }
2423                 r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
2424                 W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
2425         }
2426
2427         if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
2428             !r->in.delete_machine_account) {
2429                 libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2430                 return WERR_OK;
2431         }
2432
2433         if (!r->in.dc_name) {
2434                 struct netr_DsRGetDCNameInfo *info;
2435                 const char *dc;
2436                 status = dsgetdcname(mem_ctx,
2437                                      r->in.msg_ctx,
2438                                      r->in.domain_name,
2439                                      NULL,
2440                                      NULL,
2441                                      DS_DIRECTORY_SERVICE_REQUIRED |
2442                                      DS_WRITABLE_REQUIRED |
2443                                      DS_RETURN_DNS_NAME,
2444                                      &info);
2445                 if (!NT_STATUS_IS_OK(status)) {
2446                         libnet_unjoin_set_error_string(mem_ctx, r,
2447                                 "failed to find DC for domain %s",
2448                                 r->in.domain_name,
2449                                 get_friendly_nt_error_msg(status));
2450                         return WERR_DCNOTFOUND;
2451                 }
2452
2453                 dc = strip_hostname(info->dc_unc);
2454                 r->in.dc_name = talloc_strdup(mem_ctx, dc);
2455                 W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
2456         }
2457
2458 #ifdef HAVE_ADS
2459         /* for net ads leave, try to delete the account.  If it works,
2460            no sense in disabling.  If it fails, we can still try to
2461            disable it. jmcd */
2462
2463         if (r->in.delete_machine_account) {
2464                 ADS_STATUS ads_status;
2465                 ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
2466                 if (ADS_ERR_OK(ads_status)) {
2467                         /* dirty hack */
2468                         r->out.dns_domain_name =
2469                                 talloc_strdup(mem_ctx,
2470                                               r->in.ads->server.realm);
2471                         ads_status =
2472                                 libnet_unjoin_remove_machine_acct(mem_ctx, r);
2473                 }
2474                 if (!ADS_ERR_OK(ads_status)) {
2475                         libnet_unjoin_set_error_string(mem_ctx, r,
2476                                 "failed to remove machine account from AD: %s",
2477                                 ads_errstr(ads_status));
2478                 } else {
2479                         r->out.deleted_machine_account = true;
2480                         W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
2481                         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2482                         return WERR_OK;
2483                 }
2484         }
2485 #endif /* HAVE_ADS */
2486
2487         /* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
2488            "disable".  */
2489         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
2490                 status = libnet_join_unjoindomain_rpc(mem_ctx, r);
2491                 if (!NT_STATUS_IS_OK(status)) {
2492                         libnet_unjoin_set_error_string(mem_ctx, r,
2493                                 "failed to disable machine account via rpc: %s",
2494                                 get_friendly_nt_error_msg(status));
2495                         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
2496                                 return WERR_SETUP_NOT_JOINED;
2497                         }
2498                         return ntstatus_to_werror(status);
2499                 }
2500
2501                 r->out.disabled_machine_account = true;
2502         }
2503
2504         /* If disable succeeded or was not requested at all, we
2505            should be getting rid of our end of things */
2506
2507         libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
2508
2509         return WERR_OK;
2510 }
2511
2512 /****************************************************************
2513 ****************************************************************/
2514
2515 static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
2516                                            struct libnet_UnjoinCtx *r)
2517 {
2518         if (!r->in.domain_name) {
2519                 libnet_unjoin_set_error_string(mem_ctx, r,
2520                         "No domain name defined");
2521                 return WERR_INVALID_PARAM;
2522         }
2523
2524         if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
2525                                     &r->in.domain_name,
2526                                     &r->in.dc_name)) {
2527                 libnet_unjoin_set_error_string(mem_ctx, r,
2528                         "Failed to parse domain name");
2529                 return WERR_INVALID_PARAM;
2530         }
2531
2532         if (IS_DC) {
2533                 return WERR_SETUP_DOMAIN_CONTROLLER;
2534         }
2535
2536         if (!r->in.admin_domain) {
2537                 char *admin_domain = NULL;
2538                 char *admin_account = NULL;
2539                 split_domain_user(mem_ctx,
2540                                   r->in.admin_account,
2541                                   &admin_domain,
2542                                   &admin_account);
2543                 r->in.admin_domain = admin_domain;
2544                 r->in.admin_account = admin_account;
2545         }
2546
2547         if (!secrets_init()) {
2548                 libnet_unjoin_set_error_string(mem_ctx, r,
2549                         "Unable to open secrets database");
2550                 return WERR_CAN_NOT_COMPLETE;
2551         }
2552
2553         return WERR_OK;
2554 }
2555
2556 /****************************************************************
2557 ****************************************************************/
2558
2559 static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
2560                                             struct libnet_UnjoinCtx *r)
2561 {
2562         saf_delete(r->out.netbios_domain_name);
2563         saf_delete(r->out.dns_domain_name);
2564
2565         return libnet_unjoin_config(r);
2566 }
2567
2568 /****************************************************************
2569 ****************************************************************/
2570
2571 WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
2572                      struct libnet_UnjoinCtx *r)
2573 {
2574         WERROR werr;
2575
2576         if (r->in.debug) {
2577                 LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
2578         }
2579
2580         werr = libnet_unjoin_pre_processing(mem_ctx, r);
2581         if (!W_ERROR_IS_OK(werr)) {
2582                 goto done;
2583         }
2584
2585         if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
2586                 werr = libnet_DomainUnjoin(mem_ctx, r);
2587                 if (!W_ERROR_IS_OK(werr)) {
2588                         libnet_unjoin_config(r);
2589                         goto done;
2590                 }
2591         }
2592
2593         werr = libnet_unjoin_post_processing(mem_ctx, r);
2594         if (!W_ERROR_IS_OK(werr)) {
2595                 goto done;
2596         }
2597
2598  done:
2599         r->out.result = werr;
2600
2601         if (r->in.debug) {
2602                 LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
2603         }
2604
2605         return werr;
2606 }