source4/libnet/libnet_join.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Stefan Metzmacher      2004
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
   6    Copyright (C) Brad Henry 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "libnet/libnet.h"
  25 #include "librpc/gen_ndr/ndr_drsuapi.h"
  26 #include "lib/ldb/include/ldb.h"
  27 #include "lib/ldb/include/ldb_errors.h"
  28 #include "libcli/cldap/cldap.h"
  29 #include "passdb/secrets.h"
  30 #include "dsdb/samdb/samdb.h"
  31
  32 /*
  33  * find out Site specific stuff:
  34  * 1.) setup an CLDAP socket
  35  * 2.) lookup the Site name
  36  * 3.) Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
  37  * TODO: 4.) use DsAddEntry() to create CN=NTDS Settings,CN=<netbios name>,CN=Servers,CN=<site name>...
  38  */
  39 static NTSTATUS libnet_JoinSite(struct libnet_context *ctx,
  40                                 struct dcerpc_pipe *drsuapi_pipe,
  41                                 struct policy_handle drsuapi_bind_handle,
  42                                 struct ldb_context *remote_ldb,
  43                                 struct libnet_JoinDomain *libnet_r)
  44 {
  45         NTSTATUS status;
  46         TALLOC_CTX *tmp_ctx;
  47
  48         struct cldap_socket *cldap = NULL;
  49         struct cldap_netlogon search;
  50
  51         struct ldb_dn *server_dn;
  52         struct ldb_message *msg;
  53         int rtn;
  54
  55         const char *site_name;
  56         const char *server_dn_str;
  57         const char *config_dn_str;
  58
  59         tmp_ctx = talloc_named(libnet_r, 0, "libnet_JoinSite temp context");
  60         if (!tmp_ctx) {
  61                 libnet_r->out.error_string = NULL;
  62                 return NT_STATUS_NO_MEMORY;
  63         }
  64
  65         /* Resolve the site name. */
  66
  67         ZERO_STRUCT(search);
  68         search.in.dest_address = libnet_r->out.samr_binding->host;
  69         search.in.acct_control = -1;
  70         search.in.version = 6;
  71
  72         cldap = cldap_socket_init(tmp_ctx, NULL);
  73         status = cldap_netlogon(cldap, tmp_ctx, &search);
  74         if (!NT_STATUS_IS_OK(status)) {
  75                 /* Default to using Default-First-Site-Name rather than returning status at this point. */
  76                 site_name = talloc_asprintf(tmp_ctx, "%s", "Default-First-Site-Name");
  77                 if (!site_name) {
  78                         libnet_r->out.error_string = NULL;
  79                         talloc_free(tmp_ctx);
  80                         return NT_STATUS_NO_MEMORY;
  81                 }
  82         } else {
  83                 site_name = search.out.netlogon.logon5.site_name;
  84         }
  85
  86         config_dn_str = talloc_asprintf(tmp_ctx, "CN=Configuration,%s", libnet_r->out.domain_dn_str);
  87         if (!config_dn_str) {
  88                 libnet_r->out.error_string = NULL;
  89                 talloc_free(tmp_ctx);
  90                 return NT_STATUS_NO_MEMORY;
  91         }
  92
  93         server_dn_str = talloc_asprintf(tmp_ctx, "CN=%s,CN=Servers,CN=%s,CN=Sites,%s",
  94                                                  libnet_r->in.netbios_name, site_name, config_dn_str);
  95         if (!server_dn_str) {
  96                 libnet_r->out.error_string = NULL;
  97                 talloc_free(tmp_ctx);
  98                 return NT_STATUS_NO_MEMORY;
  99         }
 100
 101         /*
 102          Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
 103         */
 104         msg = ldb_msg_new(tmp_ctx);
 105         if (!msg) {
 106                 libnet_r->out.error_string = NULL;
 107                 talloc_free(tmp_ctx);
 108                 return NT_STATUS_NO_MEMORY;
 109         }
 110
 111         rtn = ldb_msg_add_string(msg, "objectClass", "server");
 112         if (rtn != 0) {
 113                 libnet_r->out.error_string = NULL;
 114                 talloc_free(tmp_ctx);
 115                 return NT_STATUS_NO_MEMORY;
 116         }
 117         rtn = ldb_msg_add_string(msg, "systemFlags", "50000000");
 118         if (rtn != 0) {
 119                 libnet_r->out.error_string = NULL;
 120                 talloc_free(tmp_ctx);
 121                 return NT_STATUS_NO_MEMORY;
 122         }
 123         rtn = ldb_msg_add_string(msg, "serverReference",libnet_r->out.account_dn_str);
 124         if (rtn != 0) {
 125                 libnet_r->out.error_string = NULL;
 126                 talloc_free(tmp_ctx);
 127                 return NT_STATUS_NO_MEMORY;
 128         }
 129
 130         server_dn = ldb_dn_explode(tmp_ctx, server_dn_str);
 131         if (server_dn == NULL) {
 132                 libnet_r->out.error_string = talloc_asprintf(libnet_r,
 133                                         "Invalid server dn: %s",
 134                                         server_dn_str);
 135                 talloc_free(tmp_ctx);
 136                 return NT_STATUS_UNSUCCESSFUL;
 137         }
 138
 139         msg->dn = server_dn;
 140
 141         rtn = ldb_add(remote_ldb, msg);
 142         if (rtn == LDB_ERR_ENTRY_ALREADY_EXISTS) {
 143                 int i;
 144
 145                 /* make a 'modify' msg, and only for serverReference */
 146                 msg = ldb_msg_new(tmp_ctx);
 147                 if (!msg) {
 148                         libnet_r->out.error_string = NULL;
 149                         talloc_free(tmp_ctx);
 150                         return NT_STATUS_NO_MEMORY;
 151                 }
 152                 msg->dn = server_dn;
 153
 154                 rtn = ldb_msg_add_string(msg, "serverReference",libnet_r->out.account_dn_str);
 155                 if (rtn != 0) {
 156                         libnet_r->out.error_string = NULL;
 157                         talloc_free(tmp_ctx);
 158                         return NT_STATUS_NO_MEMORY;
 159                 }
 160
 161                 /* mark all the message elements (should be just one)
 162                    as LDB_FLAG_MOD_REPLACE */
 163                 for (i=0;i<msg->num_elements;i++) {
 164                         msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 165                 }
 166
 167                 rtn = ldb_modify(remote_ldb, msg);
 168                 if (rtn != 0) {
 169                         libnet_r->out.error_string
 170                                 = talloc_asprintf(libnet_r,
 171                                                   "Failed to modify server entry %s: %s: %d",
 172                                                   server_dn_str,
 173                                                   ldb_errstring(remote_ldb), rtn);
 174                         talloc_free(tmp_ctx);
 175                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 176                 }
 177         } else if (rtn != 0) {
 178                 libnet_r->out.error_string
 179                         = talloc_asprintf(libnet_r,
 180                                 "Failed to add server entry %s: %s: %d",
 181                                 server_dn_str,
 182                                           ldb_errstring(remote_ldb), rtn);
 183                 talloc_free(tmp_ctx);
 184                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 185         }
 186         DEBUG(0, ("We still need to perform a DsAddEntry() so that we can create the CN=NTDS Settings container.\n"));
 187
 188         /* Store the server DN in libnet_r */
 189         libnet_r->out.server_dn_str = server_dn_str;
 190         talloc_steal(libnet_r, server_dn_str);
 191
 192         talloc_free(tmp_ctx);
 193         return NT_STATUS_OK;
 194 }
 195
 196 /*
 197  * complete a domain join, when joining to a AD domain:
 198  * 1.) connect and bind to the DRSUAPI pipe
 199  * 2.) do a DsCrackNames() to find the machine account dn
 200  * 3.) connect to LDAP
 201  * 4.) do an ldap search to find the "msDS-KeyVersionNumber" of the machine account
 202  * 5.) set the servicePrincipalName's of the machine account via LDAP, (maybe we should use DsWriteAccountSpn()...)
 203  * 6.) do a DsCrackNames() to find the domain dn
 204  * 7.) find out Site specific stuff, look at libnet_JoinSite() for details
 205  */
 206 static NTSTATUS libnet_JoinADSDomain(struct libnet_context *ctx, struct libnet_JoinDomain *r)
 207 {
 208         NTSTATUS status;
 209
 210         TALLOC_CTX *tmp_ctx;
 211
 212         const char *realm = r->out.realm;
 213
 214         struct dcerpc_binding *samr_binding = r->out.samr_binding;
 215
 216         struct dcerpc_pipe *drsuapi_pipe;
 217         struct dcerpc_binding *drsuapi_binding;
 218         struct drsuapi_DsBind r_drsuapi_bind;
 219         struct drsuapi_DsCrackNames r_crack_names;
 220         struct drsuapi_DsNameString names[1];
 221         struct policy_handle drsuapi_bind_handle;
 222         struct GUID drsuapi_bind_guid;
 223
 224         struct ldb_context *remote_ldb;
 225         const struct ldb_dn *account_dn;
 226         const char *account_dn_str;
 227         const char *remote_ldb_url;
 228         struct ldb_result *res;
 229         struct ldb_message *msg;
 230
 231         int ret, rtn;
 232
 233         unsigned int kvno;
 234
 235         const char * const attrs[] = {
 236                 "msDS-KeyVersionNumber",
 237                 "servicePrincipalName",
 238                 "dNSHostName",
 239                 NULL,
 240         };
 241
 242         r->out.error_string = NULL;
 243
 244         /* We need to convert between a samAccountName and domain to a
 245          * DN in the directory.  The correct way to do this is with
 246          * DRSUAPI CrackNames */
 247
 248         /* Fiddle with the bindings, so get to DRSUAPI on
 249          * NCACN_IP_TCP, sealed */
 250         tmp_ctx = talloc_named(r, 0, "libnet_JoinADSDomain temp context");
 251         if (!tmp_ctx) {
 252                 r->out.error_string = NULL;
 253                 return NT_STATUS_NO_MEMORY;
 254         }
 255
 256         drsuapi_binding = talloc(tmp_ctx, struct dcerpc_binding);
 257         if (!drsuapi_binding) {
 258                 r->out.error_string = NULL;
 259                 talloc_free(tmp_ctx);
 260                 return NT_STATUS_NO_MEMORY;
 261         }
 262
 263         *drsuapi_binding = *samr_binding;
 264
 265         /* DRSUAPI is only available on IP_TCP, and locally on NCALRPC */
 266         if (drsuapi_binding->transport != NCALRPC) {
 267                 drsuapi_binding->transport = NCACN_IP_TCP;
 268         }
 269         drsuapi_binding->endpoint = NULL;
 270         drsuapi_binding->flags |= DCERPC_SEAL;
 271
 272         status = dcerpc_pipe_connect_b(tmp_ctx,
 273                                        &drsuapi_pipe,
 274                                        drsuapi_binding,
 275                                        &dcerpc_table_drsuapi,
 276                                        ctx->cred,
 277                                        ctx->event_ctx);
 278         if (!NT_STATUS_IS_OK(status)) {
 279                 r->out.error_string = talloc_asprintf(r,
 280                                         "Connection to DRSUAPI pipe of PDC of domain '%s' failed: %s",
 281                                         r->in.domain_name,
 282                                         nt_errstr(status));
 283                 talloc_free(tmp_ctx);
 284                 return status;
 285         }
 286
 287         /* get a DRSUAPI pipe handle */
 288         GUID_from_string(DRSUAPI_DS_BIND_GUID, &drsuapi_bind_guid);
 289
 290         r_drsuapi_bind.in.bind_guid = &drsuapi_bind_guid;
 291         r_drsuapi_bind.in.bind_info = NULL;
 292         r_drsuapi_bind.out.bind_handle = &drsuapi_bind_handle;
 293
 294         status = dcerpc_drsuapi_DsBind(drsuapi_pipe, tmp_ctx, &r_drsuapi_bind);
 295         if (!NT_STATUS_IS_OK(status)) {
 296                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 297                         r->out.error_string
 298                                 = talloc_asprintf(r,
 299                                                   "dcerpc_drsuapi_DsBind for [%s\\%s] failed - %s\n",
 300                                                   r->in.domain_name, r->in.account_name,
 301                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 302                         talloc_free(tmp_ctx);
 303                         return status;
 304                 } else {
 305                         r->out.error_string
 306                                 = talloc_asprintf(r,
 307                                                   "dcerpc_drsuapi_DsBind for [%s\\%s] failed - %s\n",
 308                                                   r->in.domain_name, r->in.account_name,
 309                                                   nt_errstr(status));
 310                         talloc_free(tmp_ctx);
 311                         return status;
 312                 }
 313         } else if (!W_ERROR_IS_OK(r_drsuapi_bind.out.result)) {
 314                 r->out.error_string
 315                                 = talloc_asprintf(r,
 316                                                   "DsBind failed - %s\n",
 317                                                   win_errstr(r_drsuapi_bind.out.result));
 318                         talloc_free(tmp_ctx);
 319                 return NT_STATUS_UNSUCCESSFUL;
 320         }
 321
 322         /* Actually 'crack' the names */
 323         ZERO_STRUCT(r_crack_names);
 324         r_crack_names.in.bind_handle            = &drsuapi_bind_handle;
 325         r_crack_names.in.level                  = 1;
 326         r_crack_names.in.req.req1.unknown1      = 0x000004e4;
 327         r_crack_names.in.req.req1.unknown2      = 0x00000407;
 328         r_crack_names.in.req.req1.count         = 1;
 329         r_crack_names.in.req.req1.names         = names;
 330         r_crack_names.in.req.req1.format_flags  = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
 331         r_crack_names.in.req.req1.format_offered= DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY;
 332         r_crack_names.in.req.req1.format_desired= DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 333         names[0].str = dom_sid_string(tmp_ctx, r->out.account_sid);
 334         if (!names[0].str) {
 335                 r->out.error_string = NULL;
 336                 talloc_free(tmp_ctx);
 337                 return NT_STATUS_NO_MEMORY;
 338         }
 339
 340         status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
 341         if (!NT_STATUS_IS_OK(status)) {
 342                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 343                         r->out.error_string
 344                                 = talloc_asprintf(r,
 345                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 346                                                   names[0].str,
 347                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 348                         talloc_free(tmp_ctx);
 349                         return status;
 350                 } else {
 351                         r->out.error_string
 352                                 = talloc_asprintf(r,
 353                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 354                                                   names[0].str,
 355                                                   nt_errstr(status));
 356                         talloc_free(tmp_ctx);
 357                         return status;
 358                 }
 359         } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
 360                 r->out.error_string
 361                                 = talloc_asprintf(r,
 362                                                   "DsCrackNames failed - %s\n", win_errstr(r_crack_names.out.result));
 363                 talloc_free(tmp_ctx);
 364                 return NT_STATUS_UNSUCCESSFUL;
 365         } else if (r_crack_names.out.level != 1
 366                    || !r_crack_names.out.ctr.ctr1
 367                    || r_crack_names.out.ctr.ctr1->count != 1
 368                    || !r_crack_names.out.ctr.ctr1->array[0].result_name
 369                    || r_crack_names.out.ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 370                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed\n");
 371                 talloc_free(tmp_ctx);
 372                 return NT_STATUS_UNSUCCESSFUL;
 373         }
 374
 375         /* Store the DN of our machine account. */
 376         account_dn_str = r_crack_names.out.ctr.ctr1->array[0].result_name;
 377
 378         account_dn = ldb_dn_explode(tmp_ctx, account_dn_str);
 379         if (!account_dn) {
 380                 r->out.error_string = talloc_asprintf(r, "Invalid account dn: %s",
 381                                                       account_dn_str);
 382                 talloc_free(tmp_ctx);
 383                 return NT_STATUS_UNSUCCESSFUL;
 384         }
 385
 386         /* Now we know the user's DN, open with LDAP, read and modify a few things */
 387
 388         remote_ldb_url = talloc_asprintf(tmp_ctx, "ldap://%s",
 389                                          drsuapi_binding->host);
 390         if (!remote_ldb_url) {
 391                 r->out.error_string = NULL;
 392                 talloc_free(tmp_ctx);
 393                 return NT_STATUS_NO_MEMORY;
 394         }
 395
 396         remote_ldb = ldb_wrap_connect(tmp_ctx, remote_ldb_url,
 397                                       NULL, ctx->cred, 0, NULL);
 398         if (!remote_ldb) {
 399                 r->out.error_string = NULL;
 400                 talloc_free(tmp_ctx);
 401                 return NT_STATUS_UNSUCCESSFUL;
 402         }
 403
 404         /* search for the user's record */
 405         ret = ldb_search(remote_ldb, account_dn, LDB_SCOPE_BASE,
 406                              NULL, attrs, &res);
 407         if (ret != LDB_SUCCESS || res->count != 1) {
 408                 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - %s\n",
 409                                                       account_dn_str, ldb_errstring(remote_ldb));
 410                 talloc_free(tmp_ctx);
 411                 return NT_STATUS_UNSUCCESSFUL;
 412         }
 413
 414         /* If we have a kvno recorded in AD, we need it locally as well */
 415         kvno = ldb_msg_find_uint(res->msgs[0], "msDS-KeyVersionNumber", 0);
 416
 417         /* Prepare a new message, for the modify */
 418         msg = ldb_msg_new(tmp_ctx);
 419         if (!msg) {
 420                 r->out.error_string = NULL;
 421                 talloc_free(tmp_ctx);
 422                 return NT_STATUS_NO_MEMORY;
 423         }
 424         msg->dn = res->msgs[0]->dn;
 425
 426         {
 427                 int i;
 428                 const char *service_principal_name[6];
 429                 const char *dns_host_name = strlower_talloc(tmp_ctx,
 430                                                             talloc_asprintf(tmp_ctx,
 431                                                                             "%s.%s",
 432                                                                             r->in.netbios_name,
 433                                                                             realm));
 434
 435                 if (!dns_host_name) {
 436                         r->out.error_string = NULL;
 437                         talloc_free(tmp_ctx);
 438                         return NT_STATUS_NO_MEMORY;
 439                 }
 440
 441                 service_principal_name[0] = talloc_asprintf(tmp_ctx, "host/%s", dns_host_name);
 442                 service_principal_name[1] = talloc_asprintf(tmp_ctx, "host/%s", strlower_talloc(tmp_ctx, r->in.netbios_name));
 443                 service_principal_name[2] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, realm);
 444                 service_principal_name[3] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), realm);
 445                 service_principal_name[4] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, r->out.domain_name);
 446                 service_principal_name[5] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), r->out.domain_name);
 447
 448                 for (i=0; i < ARRAY_SIZE(service_principal_name); i++) {
 449                         if (!service_principal_name[i]) {
 450                                 r->out.error_string = NULL;
 451                                 talloc_free(tmp_ctx);
 452                                 return NT_STATUS_NO_MEMORY;
 453                         }
 454                         rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "servicePrincipalName", service_principal_name[i]);
 455                         if (rtn == -1) {
 456                                 r->out.error_string = NULL;
 457                                 talloc_free(tmp_ctx);
 458                                 return NT_STATUS_NO_MEMORY;
 459                         }
 460                 }
 461
 462                 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "dNSHostName", dns_host_name);
 463                 if (rtn == -1) {
 464                         r->out.error_string = NULL;
 465                         talloc_free(tmp_ctx);
 466                         return NT_STATUS_NO_MEMORY;
 467                 }
 468
 469                 rtn = samdb_replace(remote_ldb, tmp_ctx, msg);
 470                 if (rtn != 0) {
 471                         r->out.error_string
 472                                 = talloc_asprintf(r,
 473                                                   "Failed to replace entries on %s\n",
 474                                                   ldb_dn_linearize(tmp_ctx, msg->dn));
 475                         talloc_free(tmp_ctx);
 476                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 477                 }
 478         }
 479
 480         /* DsCrackNames to find out the DN of the domain. */
 481         r_crack_names.in.req.req1.format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
 482         r_crack_names.in.req.req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 483         names[0].str = talloc_asprintf(tmp_ctx, "%s\\", r->out.domain_name);
 484         if (!names[0].str) {
 485                 r->out.error_string = NULL;
 486                 talloc_free(tmp_ctx);
 487                 return NT_STATUS_NO_MEMORY;
 488         }
 489
 490         status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
 491         if (!NT_STATUS_IS_OK(status)) {
 492                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 493                         r->out.error_string
 494                                 = talloc_asprintf(r,
 495                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 496                                                   r->in.domain_name,
 497                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 498                         talloc_free(tmp_ctx);
 499                         return status;
 500                 } else {
 501                         r->out.error_string
 502                                 = talloc_asprintf(r,
 503                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 504                                                   r->in.domain_name,
 505                                                   nt_errstr(status));
 506                         talloc_free(tmp_ctx);
 507                         return status;
 508                 }
 509         } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
 510                 r->out.error_string
 511                         = talloc_asprintf(r,
 512                                           "DsCrackNames failed - %s\n", win_errstr(r_crack_names.out.result));
 513                 talloc_free(tmp_ctx);
 514                 return NT_STATUS_UNSUCCESSFUL;
 515         } else if (r_crack_names.out.level != 1
 516                    || !r_crack_names.out.ctr.ctr1
 517                    || r_crack_names.out.ctr.ctr1->count != 1
 518                    || !r_crack_names.out.ctr.ctr1->array[0].result_name
 519                    || r_crack_names.out.ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 520                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed\n");
 521                 talloc_free(tmp_ctx);
 522                 return NT_STATUS_UNSUCCESSFUL;
 523         }
 524
 525         /* Store the account DN. */
 526         r->out.account_dn_str = account_dn_str;
 527         talloc_steal(r, account_dn_str);
 528
 529         /* Store the domain DN. */
 530         r->out.domain_dn_str = r_crack_names.out.ctr.ctr1->array[0].result_name;
 531         talloc_steal(r, r_crack_names.out.ctr.ctr1->array[0].result_name);
 532
 533         r->out.kvno = kvno;
 534
 535         if (r->in.acct_type ==  ACB_SVRTRUST) {
 536                 status = libnet_JoinSite(ctx,
 537                                          drsuapi_pipe, drsuapi_bind_handle,
 538                                          remote_ldb, r);
 539         }
 540         talloc_free(tmp_ctx);
 541
 542         return status;
 543 }
 544
 545 /*
 546  * do a domain join using DCERPC/SAMR calls
 547  * - connect to the LSA pipe, to try and find out information about the domain
 548  * - create a secondary connection to SAMR pipe
 549  * - do a samr_Connect to get a policy handle
 550  * - do a samr_LookupDomain to get the domain sid
 551  * - do a samr_OpenDomain to get a domain handle
 552  * - do a samr_CreateAccount to try and get a new account
 553  *
 554  * If that fails, do:
 555  * - do a samr_LookupNames to get the users rid
 556  * - do a samr_OpenUser to get a user handle
 557  * - potentially delete and recreate the user
 558  * - assert the account is of the right type with samrQueryUserInfo
 559  *
 560  * - call libnet_SetPassword_samr_handle to set the password
 561  *
 562  * - do a samrSetUserInfo to set the account flags
 563  * - do some ADS specific things when we join as Domain Controller,
 564  *    look at libnet_joinADSDomain() for the details
 565  */
 566 NTSTATUS libnet_JoinDomain(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_JoinDomain *r)
 567 {
 568         TALLOC_CTX *tmp_ctx;
 569
 570         NTSTATUS status, cu_status;
 571
 572         struct libnet_RpcConnectDCInfo *connect_with_info;
 573         struct dcerpc_pipe *samr_pipe;
 574
 575         struct samr_Connect sc;
 576         struct policy_handle p_handle;
 577         struct samr_OpenDomain od;
 578         struct policy_handle d_handle;
 579         struct samr_LookupNames ln;
 580         struct samr_OpenUser ou;
 581         struct samr_CreateUser2 cu;
 582         struct policy_handle *u_handle = NULL;
 583         struct samr_QueryUserInfo qui;
 584         struct samr_SetUserInfo sui;
 585         union samr_UserInfo u_info;
 586         union libnet_SetPassword r2;
 587         struct samr_GetUserPwInfo pwp;
 588         struct lsa_String samr_account_name;
 589
 590         uint32_t acct_flags, old_acct_flags;
 591         uint32_t rid, access_granted;
 592         int policy_min_pw_len = 0;
 593
 594         struct dom_sid *account_sid = NULL;
 595         const char *password_str = NULL;
 596         const char *realm = NULL; /* Also flag for remote being AD */
 597
 598
 599         r->out.error_string = NULL;
 600         r2.samr_handle.out.error_string = NULL;
 601
 602         tmp_ctx = talloc_named(mem_ctx, 0, "libnet_Join temp context");
 603         if (!tmp_ctx) {
 604                 r->out.error_string = NULL;
 605                 return NT_STATUS_NO_MEMORY;
 606         }
 607
 608         u_handle = talloc(tmp_ctx, struct policy_handle);
 609         if (!u_handle) {
 610                 r->out.error_string = NULL;
 611                 talloc_free(tmp_ctx);
 612                 return NT_STATUS_NO_MEMORY;
 613         }
 614
 615         connect_with_info = talloc(tmp_ctx, struct libnet_RpcConnectDCInfo);
 616         if (!connect_with_info) {
 617                 r->out.error_string = NULL;
 618                 talloc_free(tmp_ctx);
 619                 return NT_STATUS_NO_MEMORY;
 620         }
 621
 622         /* prepare connect to the LSA pipe of PDC */
 623         if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 624                 connect_with_info->level      = LIBNET_RPC_CONNECT_PDC;
 625                 connect_with_info->in.name    = r->in.domain_name;
 626         } else {
 627                 connect_with_info->level      = LIBNET_RPC_CONNECT_BINDING;
 628                 connect_with_info->in.binding = r->in.binding;
 629         }
 630
 631         connect_with_info->in.dcerpc_iface    = &dcerpc_table_samr;
 632         /*
 633           establish a SAMR connection, on the same CIFS transport
 634         */
 635
 636         status = libnet_RpcConnectDCInfo(ctx, connect_with_info);
 637         if (!NT_STATUS_IS_OK(status)) {
 638                 if (r->in.binding) {
 639                         r->out.error_string = talloc_asprintf(mem_ctx,
 640                                                               "Connection to SAMR pipe of DC %s failed: %s",
 641                                                               r->in.binding, connect_with_info->out.error_string);
 642                 } else {
 643                         r->out.error_string = talloc_asprintf(mem_ctx,
 644                                                               "Connection to SAMR pipe of PDC for %s failed: %s",
 645                                                               r->in.domain_name, connect_with_info->out.error_string);
 646                 }
 647                 talloc_free(tmp_ctx);
 648                 return status;
 649         }
 650
 651         samr_pipe = connect_with_info->out.dcerpc_pipe,
 652
 653         status = dcerpc_pipe_auth(samr_pipe,
 654                                   connect_with_info->out.dcerpc_pipe->binding,
 655                                   &dcerpc_table_samr, ctx->cred);
 656         if (!NT_STATUS_IS_OK(status)) {
 657                 r->out.error_string = talloc_asprintf(mem_ctx,
 658                                                 "SAMR bind failed: %s",
 659                                                 nt_errstr(status));
 660                 talloc_free(tmp_ctx);
 661                 return status;
 662         }
 663
 664         /* prepare samr_Connect */
 665         ZERO_STRUCT(p_handle);
 666         sc.in.system_name = NULL;
 667         sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 668         sc.out.connect_handle = &p_handle;
 669
 670         /* 2. do a samr_Connect to get a policy handle */
 671         status = dcerpc_samr_Connect(samr_pipe, tmp_ctx, &sc);
 672         if (!NT_STATUS_IS_OK(status)) {
 673                 r->out.error_string = talloc_asprintf(mem_ctx,
 674                                                 "samr_Connect failed: %s",
 675                                                 nt_errstr(status));
 676                 talloc_free(tmp_ctx);
 677                 return status;
 678         }
 679
 680         /* If this is a connection on ncacn_ip_tcp to Win2k3 SP1, we don't get back this useful info */
 681         if (!connect_with_info->out.domain_name) {
 682                 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 683                         connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, r->in.domain_name);
 684                 } else {
 685                         /* Bugger, we just lost our way to automaticly find the domain name */
 686                         connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, lp_workgroup());
 687                 }
 688         }
 689
 690         /* Perhaps we didn't get a SID above, because we are against ncacn_ip_tcp */
 691         if (!connect_with_info->out.domain_sid) {
 692                 struct lsa_String name;
 693                 struct samr_LookupDomain l;
 694                 name.string = connect_with_info->out.domain_name;
 695                 l.in.connect_handle = &p_handle;
 696                 l.in.domain_name = &name;
 697
 698                 status = dcerpc_samr_LookupDomain(samr_pipe, tmp_ctx, &l);
 699                 if (!NT_STATUS_IS_OK(status)) {
 700                         r->out.error_string = talloc_asprintf(mem_ctx,
 701                                                               "SAMR LookupDomain failed: %s",
 702                                                               nt_errstr(status));
 703                         talloc_free(tmp_ctx);
 704                         return status;
 705                 }
 706                 connect_with_info->out.domain_sid = l.out.sid;
 707         }
 708
 709         /* prepare samr_OpenDomain */
 710         ZERO_STRUCT(d_handle);
 711         od.in.connect_handle = &p_handle;
 712         od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 713         od.in.sid = connect_with_info->out.domain_sid;
 714         od.out.domain_handle = &d_handle;
 715
 716         /* do a samr_OpenDomain to get a domain handle */
 717         status = dcerpc_samr_OpenDomain(samr_pipe, tmp_ctx, &od);
 718         if (!NT_STATUS_IS_OK(status)) {
 719                 r->out.error_string = talloc_asprintf(mem_ctx,
 720                                                       "samr_OpenDomain for [%s] failed: %s",
 721                                                       dom_sid_string(tmp_ctx, connect_with_info->out.domain_sid),
 722                                                       nt_errstr(status));
 723                 talloc_free(tmp_ctx);
 724                 return status;
 725         }
 726
 727         /* prepare samr_CreateUser2 */
 728         ZERO_STRUCTP(u_handle);
 729         cu.in.domain_handle  = &d_handle;
 730         cu.in.access_mask     = SEC_FLAG_MAXIMUM_ALLOWED;
 731         samr_account_name.string = r->in.account_name;
 732         cu.in.account_name    = &samr_account_name;
 733         cu.in.acct_flags      = r->in.acct_type;
 734         cu.out.user_handle    = u_handle;
 735         cu.out.rid            = &rid;
 736         cu.out.access_granted = &access_granted;
 737
 738         /* do a samr_CreateUser2 to get an account handle, or an error */
 739         cu_status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
 740         status = cu_status;
 741         if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 742                 /* prepare samr_LookupNames */
 743                 ln.in.domain_handle = &d_handle;
 744                 ln.in.num_names = 1;
 745                 ln.in.names = talloc_array(tmp_ctx, struct lsa_String, 1);
 746                 if (!ln.in.names) {
 747                         r->out.error_string = NULL;
 748                         talloc_free(tmp_ctx);
 749                         return NT_STATUS_NO_MEMORY;
 750                 }
 751                 ln.in.names[0].string = r->in.account_name;
 752
 753                 /* 5. do a samr_LookupNames to get the users rid */
 754                 status = dcerpc_samr_LookupNames(samr_pipe, tmp_ctx, &ln);
 755                 if (!NT_STATUS_IS_OK(status)) {
 756                         r->out.error_string = talloc_asprintf(mem_ctx,
 757                                                 "samr_LookupNames for [%s] failed: %s",
 758                                                 r->in.account_name,
 759                                                 nt_errstr(status));
 760                         talloc_free(tmp_ctx);
 761                         return status;
 762                 }
 763
 764                 /* check if we got one RID for the user */
 765                 if (ln.out.rids.count != 1) {
 766                         r->out.error_string = talloc_asprintf(mem_ctx,
 767                                                               "samr_LookupNames for [%s] returns %d RIDs\n",
 768                                                               r->in.account_name, ln.out.rids.count);
 769                         talloc_free(tmp_ctx);
 770                         return NT_STATUS_INVALID_PARAMETER;
 771                 }
 772
 773                 /* prepare samr_OpenUser */
 774                 ZERO_STRUCTP(u_handle);
 775                 ou.in.domain_handle = &d_handle;
 776                 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 777                 ou.in.rid = ln.out.rids.ids[0];
 778                 rid = ou.in.rid;
 779                 ou.out.user_handle = u_handle;
 780
 781                 /* 6. do a samr_OpenUser to get a user handle */
 782                 status = dcerpc_samr_OpenUser(samr_pipe, tmp_ctx, &ou);
 783                 if (!NT_STATUS_IS_OK(status)) {
 784                         r->out.error_string = talloc_asprintf(mem_ctx,
 785                                                         "samr_OpenUser for [%s] failed: %s",
 786                                                         r->in.account_name,
 787                                                         nt_errstr(status));
 788                         talloc_free(tmp_ctx);
 789                         return status;
 790                 }
 791
 792                 if (r->in.recreate_account) {
 793                         struct samr_DeleteUser d;
 794                         d.in.user_handle = u_handle;
 795                         d.out.user_handle = u_handle;
 796                         status = dcerpc_samr_DeleteUser(samr_pipe, mem_ctx, &d);
 797                         if (!NT_STATUS_IS_OK(status)) {
 798                                 r->out.error_string = talloc_asprintf(mem_ctx,
 799                                                                       "samr_DeleteUser (for recreate) of [%s] failed: %s",
 800                                                                       r->in.account_name,
 801                                                                       nt_errstr(status));
 802                                 talloc_free(tmp_ctx);
 803                                 return status;
 804                         }
 805
 806                         /* We want to recreate, so delete and another samr_CreateUser2 */
 807
 808                         /* &cu filled in above */
 809                         status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
 810                         if (!NT_STATUS_IS_OK(status)) {
 811                                 r->out.error_string = talloc_asprintf(mem_ctx,
 812                                                                       "samr_CreateUser2 (recreate) for [%s] failed: %s\n",
 813                                                                       r->in.domain_name, nt_errstr(status));
 814                                 talloc_free(tmp_ctx);
 815                                 return status;
 816                         }
 817                 }
 818         } else if (!NT_STATUS_IS_OK(status)) {
 819                 r->out.error_string = talloc_asprintf(mem_ctx,
 820                                                       "samr_CreateUser2 for [%s] failed: %s\n",
 821                                                       r->in.domain_name, nt_errstr(status));
 822                 talloc_free(tmp_ctx);
 823                 return status;
 824         }
 825
 826         /* prepare samr_QueryUserInfo (get flags) */
 827         qui.in.user_handle = u_handle;
 828         qui.in.level = 16;
 829
 830         status = dcerpc_samr_QueryUserInfo(samr_pipe, tmp_ctx, &qui);
 831         if (!NT_STATUS_IS_OK(status)) {
 832                 r->out.error_string = talloc_asprintf(mem_ctx,
 833                                                 "samr_QueryUserInfo for [%s] failed: %s",
 834                                                 r->in.account_name,
 835                                                 nt_errstr(status));
 836                 talloc_free(tmp_ctx);
 837                 return status;
 838         }
 839
 840         if (!qui.out.info) {
 841                 status = NT_STATUS_INVALID_PARAMETER;
 842                 r->out.error_string
 843                         = talloc_asprintf(mem_ctx,
 844                                           "samr_QueryUserInfo failed to return qui.out.info for [%s]: %s\n",
 845                                           r->in.account_name, nt_errstr(status));
 846                 talloc_free(tmp_ctx);
 847                 return status;
 848         }
 849
 850         old_acct_flags = (qui.out.info->info16.acct_flags & (ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST));
 851         /* Possibly bail if the account is of the wrong type */
 852         if (old_acct_flags
 853             != r->in.acct_type) {
 854                 const char *old_account_type, *new_account_type;
 855                 switch (old_acct_flags) {
 856                 case ACB_WSTRUST:
 857                         old_account_type = "domain member (member)";
 858                         break;
 859                 case ACB_SVRTRUST:
 860                         old_account_type = "domain controller (bdc)";
 861                         break;
 862                 case ACB_DOMTRUST:
 863                         old_account_type = "trusted domain";
 864                         break;
 865                 default:
 866                         return NT_STATUS_INVALID_PARAMETER;
 867                 }
 868                 switch (r->in.acct_type) {
 869                 case ACB_WSTRUST:
 870                         new_account_type = "domain member (member)";
 871                         break;
 872                 case ACB_SVRTRUST:
 873                         new_account_type = "domain controller (bdc)";
 874                         break;
 875                 case ACB_DOMTRUST:
 876                         new_account_type = "trusted domain";
 877                         break;
 878                 default:
 879                         return NT_STATUS_INVALID_PARAMETER;
 880                 }
 881
 882                 if (!NT_STATUS_EQUAL(cu_status, NT_STATUS_USER_EXISTS)) {
 883                         /* We created a new user, but they didn't come out the right type?!? */
 884                         r->out.error_string
 885                                 = talloc_asprintf(mem_ctx,
 886                                                   "We asked to create a new machine account (%s) of type %s, "
 887                                                   "but we got an account of type %s.  This is unexpected.  "
 888                                                   "Perhaps delete the account and try again.\n",
 889                                                   r->in.account_name, new_account_type, old_account_type);
 890                         talloc_free(tmp_ctx);
 891                         return NT_STATUS_INVALID_PARAMETER;
 892                 } else {
 893                         /* The account is of the wrong type, so bail */
 894
 895                         /* TODO: We should allow a --force option to override, and redo this from the top setting r.in.recreate_account */
 896                         r->out.error_string
 897                                 = talloc_asprintf(mem_ctx,
 898                                                   "The machine account (%s) already exists in the domain %s, "
 899                                                   "but is a %s.  You asked to join as a %s.  Please delete "
 900                                                   "the account and try again.\n",
 901                                                   r->in.account_name, connect_with_info->out.domain_name, old_account_type, new_account_type);
 902                         talloc_free(tmp_ctx);
 903                         return NT_STATUS_USER_EXISTS;
 904                 }
 905         } else {
 906                 acct_flags = qui.out.info->info16.acct_flags;
 907         }
 908
 909         acct_flags = (acct_flags & ~ACB_DISABLED);
 910
 911         /* Find out what password policy this user has */
 912         pwp.in.user_handle = u_handle;
 913
 914         status = dcerpc_samr_GetUserPwInfo(samr_pipe, tmp_ctx, &pwp);
 915         if (NT_STATUS_IS_OK(status)) {
 916                 policy_min_pw_len = pwp.out.info.min_password_length;
 917         }
 918
 919         /* Grab a password of that minimum length */
 920
 921         password_str = generate_random_str(tmp_ctx, MAX(8, policy_min_pw_len));
 922
 923         r2.samr_handle.level            = LIBNET_SET_PASSWORD_SAMR_HANDLE;
 924         r2.samr_handle.in.account_name  = r->in.account_name;
 925         r2.samr_handle.in.newpassword   = password_str;
 926         r2.samr_handle.in.user_handle   = u_handle;
 927         r2.samr_handle.in.dcerpc_pipe   = samr_pipe;
 928
 929         status = libnet_SetPassword(ctx, tmp_ctx, &r2);
 930         if (!NT_STATUS_IS_OK(status)) {
 931                 r->out.error_string = talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 932                 talloc_free(tmp_ctx);
 933                 return status;
 934         }
 935
 936         /* reset flags (if required) */
 937         if (acct_flags != qui.out.info->info16.acct_flags) {
 938                 ZERO_STRUCT(u_info);
 939                 u_info.info16.acct_flags = acct_flags;
 940
 941                 sui.in.user_handle = u_handle;
 942                 sui.in.info = &u_info;
 943                 sui.in.level = 16;
 944
 945                 dcerpc_samr_SetUserInfo(samr_pipe, tmp_ctx, &sui);
 946                 if (!NT_STATUS_IS_OK(status)) {
 947                         r->out.error_string = talloc_asprintf(mem_ctx,
 948                                                         "samr_SetUserInfo for [%s] failed to remove ACB_DISABLED flag: %s",
 949                                                         r->in.account_name,
 950                                                         nt_errstr(status));
 951                         talloc_free(tmp_ctx);
 952                         return status;
 953                 }
 954         }
 955
 956         account_sid = dom_sid_add_rid(mem_ctx, connect_with_info->out.domain_sid, rid);
 957         if (!account_sid) {
 958                 r->out.error_string = NULL;
 959                 talloc_free(tmp_ctx);
 960                 return NT_STATUS_NO_MEMORY;
 961         }
 962
 963         /* Finish out by pushing various bits of status data out for the caller to use */
 964         r->out.join_password = password_str;
 965         talloc_steal(mem_ctx, r->out.join_password);
 966
 967         r->out.domain_sid = connect_with_info->out.domain_sid;
 968         talloc_steal(mem_ctx, r->out.domain_sid);
 969
 970         r->out.account_sid = account_sid;
 971         talloc_steal(mem_ctx, r->out.account_sid);
 972
 973         r->out.domain_name = connect_with_info->out.domain_name;
 974         talloc_steal(mem_ctx, r->out.domain_name);
 975         r->out.realm = connect_with_info->out.realm;
 976         talloc_steal(mem_ctx, r->out.realm);
 977         r->out.samr_pipe = samr_pipe;
 978         talloc_steal(mem_ctx, samr_pipe);
 979         r->out.samr_binding = samr_pipe->binding;
 980         talloc_steal(mem_ctx, r->out.samr_binding);
 981         r->out.user_handle = u_handle;
 982         talloc_steal(mem_ctx, u_handle);
 983         r->out.error_string = r2.samr_handle.out.error_string;
 984         talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 985         r->out.kvno = 0;
 986         r->out.server_dn_str = NULL;
 987         talloc_free(tmp_ctx);
 988
 989         /* Now, if it was AD, then we want to start looking changing a
 990          * few more things.  Otherwise, we are done. */
 991         if (realm) {
 992                 status = libnet_JoinADSDomain(ctx, r);
 993                 return status;
 994         }
 995
 996         return status;
 997 }
 998
 999 static NTSTATUS libnet_Join_primary_domain(struct libnet_context *ctx,
1000                                            TALLOC_CTX *mem_ctx,
1001                                            struct libnet_Join *r)
1002 {
1003         NTSTATUS status;
1004         TALLOC_CTX *tmp_mem;
1005         struct libnet_JoinDomain *r2;
1006         int ret, rtn;
1007         struct ldb_context *ldb;
1008         const struct ldb_dn *base_dn;
1009         struct ldb_message **msgs, *msg;
1010         const char *sct;
1011         const char * const attrs[] = {
1012                 "whenChanged",
1013                 "secret",
1014                 "priorSecret",
1015                 "priorChanged",
1016                 NULL
1017         };
1018         uint32_t acct_type = 0;
1019         const char *account_name;
1020         const char *netbios_name;
1021         char *filter;
1022
1023         r->out.error_string = NULL;
1024
1025         tmp_mem = talloc_new(mem_ctx);
1026         if (!tmp_mem) {
1027                 return NT_STATUS_NO_MEMORY;
1028         }
1029
1030         r2 = talloc(tmp_mem, struct libnet_JoinDomain);
1031         if (!r2) {
1032                 r->out.error_string = NULL;
1033                 talloc_free(tmp_mem);
1034                 return NT_STATUS_NO_MEMORY;
1035         }
1036
1037         if (r->in.join_type == SEC_CHAN_BDC) {
1038                 acct_type = ACB_SVRTRUST;
1039         } else if (r->in.join_type == SEC_CHAN_WKSTA) {
1040                 acct_type = ACB_WSTRUST;
1041         } else {
1042                 r->out.error_string = NULL;
1043                 talloc_free(tmp_mem);
1044                 return NT_STATUS_INVALID_PARAMETER;
1045         }
1046
1047         if (r->in.netbios_name != NULL) {
1048                 netbios_name = r->in.netbios_name;
1049         } else {
1050                 netbios_name = talloc_reference(tmp_mem, lp_netbios_name());
1051                 if (!netbios_name) {
1052                         r->out.error_string = NULL;
1053                         talloc_free(tmp_mem);
1054                         return NT_STATUS_NO_MEMORY;
1055                 }
1056         }
1057
1058         account_name = talloc_asprintf(tmp_mem, "%s$", netbios_name);
1059         if (!account_name) {
1060                 r->out.error_string = NULL;
1061                 talloc_free(tmp_mem);
1062                 return NT_STATUS_NO_MEMORY;
1063         }
1064
1065         /*
1066          * Local secrets are stored in secrets.ldb
1067          * open it to make sure we can write the info into it after the join
1068          */
1069         ldb = secrets_db_connect(tmp_mem);
1070         if (!ldb) {
1071                 r->out.error_string
1072                         = talloc_asprintf(mem_ctx,
1073                                           "Could not open secrets database\n");
1074                 talloc_free(tmp_mem);
1075                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1076         }
1077
1078         /*
1079          * join the domain
1080          */
1081         ZERO_STRUCTP(r2);
1082         r2->in.domain_name      = r->in.domain_name;
1083         r2->in.account_name     = account_name;
1084         r2->in.netbios_name     = netbios_name;
1085         r2->in.level            = LIBNET_JOINDOMAIN_AUTOMATIC;
1086         r2->in.acct_type        = acct_type;
1087         r2->in.recreate_account = False;
1088         status = libnet_JoinDomain(ctx, r2, r2);
1089         if (!NT_STATUS_IS_OK(status)) {
1090                 r->out.error_string = talloc_steal(mem_ctx, r2->out.error_string);
1091                 talloc_free(tmp_mem);
1092                 return status;
1093         }
1094
1095         /*
1096          * now prepare the record for secrets.ldb
1097          */
1098         sct = talloc_asprintf(tmp_mem, "%d", r->in.join_type);
1099         if (!sct) {
1100                 r->out.error_string = NULL;
1101                 talloc_free(tmp_mem);
1102                 return NT_STATUS_NO_MEMORY;
1103         }
1104
1105         msg = ldb_msg_new(tmp_mem);
1106         if (!msg) {
1107                 r->out.error_string = NULL;
1108                 talloc_free(tmp_mem);
1109                 return NT_STATUS_NO_MEMORY;
1110         }
1111
1112         base_dn = ldb_dn_explode(tmp_mem, "cn=Primary Domains");
1113         if (!base_dn) {
1114                 r->out.error_string = NULL;
1115                 talloc_free(tmp_mem);
1116                 return NT_STATUS_NO_MEMORY;
1117         }
1118
1119         msg->dn = ldb_dn_build_child(tmp_mem, "flatname", r2->out.domain_name, base_dn);
1120         if (!msg->dn) {
1121                 r->out.error_string = NULL;
1122                 talloc_free(tmp_mem);
1123                 return NT_STATUS_NO_MEMORY;
1124         }
1125
1126         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "flatname", r2->out.domain_name);
1127         if (rtn == -1) {
1128                 r->out.error_string = NULL;
1129                 talloc_free(tmp_mem);
1130                 return NT_STATUS_NO_MEMORY;
1131         }
1132
1133         if (r2->out.realm) {
1134                 rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "realm", r2->out.realm);
1135                 if (rtn == -1) {
1136                         r->out.error_string = NULL;
1137                         talloc_free(tmp_mem);
1138                         return NT_STATUS_NO_MEMORY;
1139                 }
1140
1141                 rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "objectClass", "primaryDomain");
1142                 if (rtn == -1) {
1143                         r->out.error_string = NULL;
1144                         talloc_free(tmp_mem);
1145                         return NT_STATUS_NO_MEMORY;
1146                 }
1147         }
1148
1149         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "objectClass", "primaryDomain");
1150         if (rtn == -1) {
1151                 r->out.error_string = NULL;
1152                 talloc_free(tmp_mem);
1153                 return NT_STATUS_NO_MEMORY;
1154         }
1155
1156         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
1157         if (rtn == -1) {
1158                 r->out.error_string = NULL;
1159                 talloc_free(tmp_mem);
1160                 return NT_STATUS_NO_MEMORY;
1161         }
1162
1163         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1164         if (rtn == -1) {
1165                 r->out.error_string = NULL;
1166                 talloc_free(tmp_mem);
1167                 return NT_STATUS_NO_MEMORY;
1168         }
1169
1170         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1171         if (rtn == -1) {
1172                 r->out.error_string = NULL;
1173                 talloc_free(tmp_mem);
1174                 return NT_STATUS_NO_MEMORY;
1175         }
1176
1177         if (r2->out.kvno) {
1178                 rtn = samdb_msg_add_uint(ldb, tmp_mem, msg, "msDS-KeyVersionNumber",
1179                                          r2->out.kvno);
1180                 if (rtn == -1) {
1181                         r->out.error_string = NULL;
1182                         talloc_free(tmp_mem);
1183                         return NT_STATUS_NO_MEMORY;
1184                 }
1185         }
1186
1187         if (r2->out.domain_sid) {
1188                 rtn = samdb_msg_add_dom_sid(ldb, tmp_mem, msg, "objectSid",
1189                                             r2->out.domain_sid);
1190                 if (rtn == -1) {
1191                         r->out.error_string = NULL;
1192                         talloc_free(tmp_mem);
1193                         return NT_STATUS_NO_MEMORY;
1194                 }
1195         }
1196
1197         /*
1198          * search for the secret record
1199          * - remove the records we find
1200          * - and fetch the old secret and store it under priorSecret
1201          */
1202         ret = gendb_search(ldb,
1203                            tmp_mem, base_dn,
1204                            &msgs, attrs,
1205                            "(|" SECRETS_PRIMARY_DOMAIN_FILTER "(realm=%s))",
1206                            r2->out.domain_name, r2->out.realm);
1207         if (ret == 0) {
1208         } else if (ret == -1) {
1209                 r->out.error_string
1210                         = talloc_asprintf(mem_ctx,
1211                                           "Search for domain: %s and realm: %s failed: %s",
1212                                           r2->out.domain_name, r2->out.realm, ldb_errstring(ldb));
1213                 talloc_free(tmp_mem);
1214                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1215         } else {
1216                 const struct ldb_val *prior_secret;
1217                 const struct ldb_val *prior_modified_time;
1218                 int i;
1219
1220                 for (i = 0; i < ret; i++) {
1221                         ldb_delete(ldb, msgs[i]->dn);
1222                 }
1223
1224                 prior_secret = ldb_msg_find_ldb_val(msgs[0], "secret");
1225                 if (prior_secret) {
1226                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorSecret", prior_secret);
1227                         if (rtn == -1) {
1228                                 r->out.error_string = NULL;
1229                                 talloc_free(tmp_mem);
1230                                 return NT_STATUS_NO_MEMORY;
1231                         }
1232                 }
1233                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
1234                 if (rtn == -1) {
1235                         r->out.error_string = NULL;
1236                         talloc_free(tmp_mem);
1237                         return NT_STATUS_NO_MEMORY;
1238                 }
1239
1240                 prior_modified_time = ldb_msg_find_ldb_val(msgs[0],
1241                                                            "whenChanged");
1242                 if (prior_modified_time) {
1243                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorWhenChanged",
1244                                                   prior_modified_time);
1245                         if (rtn == -1) {
1246                                 r->out.error_string = NULL;
1247                                 talloc_free(tmp_mem);
1248                                 return NT_STATUS_NO_MEMORY;
1249                         }
1250                 }
1251
1252                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1253                 if (rtn == -1) {
1254                         r->out.error_string = NULL;
1255                         talloc_free(tmp_mem);
1256                         return NT_STATUS_NO_MEMORY;
1257                 }
1258
1259                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1260                 if (rtn == -1) {
1261                         r->out.error_string = NULL;
1262                         talloc_free(tmp_mem);
1263                         return NT_STATUS_NO_MEMORY;
1264                 }
1265         }
1266
1267         /* create the secret */
1268         ret = samdb_add(ldb, tmp_mem, msg);
1269         if (ret != 0) {
1270                 r->out.error_string = talloc_asprintf(mem_ctx, "Failed to create secret record %s\n",
1271                                                       ldb_dn_linearize(ldb, msg->dn));
1272                 talloc_free(tmp_mem);
1273                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1274         }
1275
1276         if (r2->out.realm) {
1277                 struct cli_credentials *creds;
1278                 /* Make a credentials structure from it */
1279                 creds = cli_credentials_init(mem_ctx);
1280                 if (!creds) {
1281                         r->out.error_string = NULL;
1282                         talloc_free(tmp_mem);
1283                         return NT_STATUS_NO_MEMORY;
1284                 }
1285                 cli_credentials_set_conf(creds);
1286                 filter = talloc_asprintf(mem_ctx, "dn=%s", ldb_dn_linearize(mem_ctx, msg->dn));
1287                 status = cli_credentials_set_secrets(creds, NULL, filter);
1288                 if (!NT_STATUS_IS_OK(status)) {
1289                         r->out.error_string = talloc_asprintf(mem_ctx, "Failed to read secrets for keytab update for %s\n",
1290                                                               filter);
1291                         talloc_free(tmp_mem);
1292                         return status;
1293                 }
1294                 ret = cli_credentials_update_keytab(creds);
1295                 if (ret != 0) {
1296                         r->out.error_string = talloc_asprintf(mem_ctx, "Failed to update keytab for %s\n",
1297                                                               filter);
1298                         talloc_free(tmp_mem);
1299                         return NT_STATUS_UNSUCCESSFUL;
1300                 }
1301         }
1302
1303         /* move all out parameter to the callers TALLOC_CTX */
1304         r->out.error_string     = NULL;
1305         r->out.join_password    = r2->out.join_password;
1306         talloc_steal(mem_ctx, r2->out.join_password);
1307         r->out.domain_sid       = r2->out.domain_sid;
1308         talloc_steal(mem_ctx, r2->out.domain_sid);
1309         r->out.domain_name      = r2->out.domain_name;
1310         talloc_steal(mem_ctx, r2->out.domain_name);
1311         talloc_free(tmp_mem);
1312         return NT_STATUS_OK;
1313 }
1314
1315 NTSTATUS libnet_Join(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_Join *r)
1316 {
1317         switch (r->in.join_type) {
1318                 case SEC_CHAN_WKSTA:
1319                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1320                 case SEC_CHAN_BDC:
1321                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1322                 case SEC_CHAN_DOMAIN:
1323                         break;
1324         }
1325
1326         r->out.error_string = talloc_asprintf(mem_ctx,
1327                                               "Invalid join type specified (%08X) attempting to join domain %s",
1328                                               r->in.join_type, r->in.domain_name);
1329         return NT_STATUS_INVALID_PARAMETER;
1330 }