source/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_samr.h"
  26 #include "librpc/gen_ndr/ndr_lsa.h"
  27 #include "librpc/gen_ndr/ndr_drsuapi.h"
  28 #include "lib/ldb/include/ldb.h"
  29 #include "libcli/cldap/cldap.h"
  30 #include "include/secrets.h"
  31 #include "librpc/gen_ndr/drsuapi.h"
  32
  33 /*
  34  * find out Site specific stuff:
  35  * 1.) setup an CLDAP socket
  36  * 2.) lookup the Site name
  37  * 3.) Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
  38  * TODO: 4.) use DsAddEntry() to create CN=NTDS Settings,CN=<netbios name>,CN=Servers,CN=<site name>...
  39  */
  40 static NTSTATUS libnet_JoinSite(struct libnet_context *ctx,
  41                                 struct dcerpc_pipe *drsuapi_pipe,
  42                                 struct policy_handle drsuapi_bind_handle,
  43                                 struct ldb_context *remote_ldb,
  44                                 struct libnet_JoinDomain *libnet_r)
  45 {
  46         NTSTATUS status;
  47         TALLOC_CTX *tmp_ctx;
  48
  49         struct cldap_socket *cldap = NULL;
  50         struct cldap_netlogon search;
  51
  52         struct ldb_dn *server_dn;
  53         struct ldb_message *msg;
  54         int rtn;
  55
  56         const char *site_name;
  57         const char *server_dn_str;
  58         const char *config_dn_str;
  59
  60         tmp_ctx = talloc_named(libnet_r, 0, "libnet_JoinSite temp context");
  61         if (!tmp_ctx) {
  62                 libnet_r->out.error_string = NULL;
  63                 return NT_STATUS_NO_MEMORY;
  64         }
  65
  66         /* Resolve the site name. */
  67
  68         ZERO_STRUCT(search);
  69         search.in.dest_address = libnet_r->out.samr_binding->host;
  70         search.in.acct_control = -1;
  71         search.in.version = 6;
  72
  73         cldap = cldap_socket_init(tmp_ctx, NULL);
  74         status = cldap_netlogon(cldap, tmp_ctx, &search);
  75         if (!NT_STATUS_IS_OK(status)) {
  76                 /* Default to using Default-First-Site-Name rather than returning status at this point. */
  77                 site_name = talloc_asprintf(tmp_ctx, "%s", "Default-First-Site-Name");
  78                 if (!site_name) {
  79                         libnet_r->out.error_string = NULL;
  80                         talloc_free(tmp_ctx);
  81                         return NT_STATUS_NO_MEMORY;
  82                 }
  83         } else {
  84                 site_name = search.out.netlogon.logon5.site_name;
  85         }
  86
  87         config_dn_str = talloc_asprintf(tmp_ctx, "CN=Configuration,%s", libnet_r->out.domain_dn_str);
  88         if (!config_dn_str) {
  89                 libnet_r->out.error_string = NULL;
  90                 talloc_free(tmp_ctx);
  91                 return NT_STATUS_NO_MEMORY;
  92         }
  93
  94         server_dn_str = talloc_asprintf(tmp_ctx, "CN=%s,CN=Servers,CN=%s,CN=Sites,%s",
  95                                                  libnet_r->in.netbios_name, site_name, config_dn_str);
  96         if (!server_dn_str) {
  97                 libnet_r->out.error_string = NULL;
  98                 talloc_free(tmp_ctx);
  99                 return NT_STATUS_NO_MEMORY;
 100         }
 101
 102         /*
 103          Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
 104         */
 105         msg = ldb_msg_new(tmp_ctx);
 106         if (!msg) {
 107                 libnet_r->out.error_string = NULL;
 108                 talloc_free(tmp_ctx);
 109                 return NT_STATUS_NO_MEMORY;
 110         }
 111
 112         rtn = ldb_msg_add_string(remote_ldb, msg, "objectClass", "server");
 113         if (rtn != 0) {
 114                 libnet_r->out.error_string = NULL;
 115                 talloc_free(tmp_ctx);
 116                 return NT_STATUS_NO_MEMORY;
 117         }
 118         rtn = ldb_msg_add_string(remote_ldb, msg, "systemFlags", "50000000");
 119         if (rtn != 0) {
 120                 libnet_r->out.error_string = NULL;
 121                 talloc_free(tmp_ctx);
 122                 return NT_STATUS_NO_MEMORY;
 123         }
 124         rtn = ldb_msg_add_string(remote_ldb, msg, "serverReference",libnet_r->out.account_dn_str);
 125         if (rtn != 0) {
 126                 libnet_r->out.error_string = NULL;
 127                 talloc_free(tmp_ctx);
 128                 return NT_STATUS_NO_MEMORY;
 129         }
 130
 131         server_dn = ldb_dn_explode(tmp_ctx, server_dn_str);
 132         if (server_dn == NULL) {
 133                 libnet_r->out.error_string = talloc_asprintf(libnet_r,
 134                                         "Invalid server dn: %s",
 135                                         server_dn_str);
 136                 talloc_free(tmp_ctx);
 137                 return NT_STATUS_UNSUCCESSFUL;
 138         }
 139
 140         msg->dn = server_dn;
 141         msg->elements->flags = LDB_FLAG_MOD_ADD;
 142
 143         rtn = ldb_add(remote_ldb, msg);
 144         if (rtn != 0) {
 145                 libnet_r->out.error_string
 146                         = talloc_asprintf(libnet_r,
 147                                 "Failed to add server entry %s: %s.",
 148                                 server_dn_str,
 149                                 ldb_errstring(remote_ldb));
 150                 talloc_free(tmp_ctx);
 151                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 152         }
 153         DEBUG(0, ("We still need to perform a DsAddEntry() so that we can create the CN=NTDS Settings container.\n"));
 154
 155         /* Store the server DN in libnet_r */
 156         libnet_r->out.server_dn_str = server_dn_str;
 157         talloc_steal(libnet_r, server_dn_str);
 158
 159         talloc_free(tmp_ctx);
 160         return NT_STATUS_OK;
 161 }
 162
 163 /*
 164  * complete a domain join, when joining to a AD domain:
 165  * 1.) connect and bind to the DRSUAPI pipe
 166  * 2.) do a DsCrackNames() to find the machine account dn
 167  * 3.) connect to LDAP
 168  * 4.) do an ldap search to find the "msDS-KeyVersionNumber" of the machine account
 169  * 5.) set the servicePrincipalName's of the machine account via LDAP, (maybe we should use DsWriteAccountSpn()...)
 170  * 6.) do a DsCrackNames() to find the domain dn
 171  * 7.) find out Site specific stuff, look at libnet_JoinSite() for details
 172  */
 173 static NTSTATUS libnet_JoinADSDomain(struct libnet_context *ctx, struct libnet_JoinDomain *r)
 174 {
 175         NTSTATUS status;
 176
 177         TALLOC_CTX *tmp_ctx;
 178
 179         const char *realm = r->out.realm;
 180
 181         struct dcerpc_binding *samr_binding = r->out.samr_binding;
 182
 183         struct dcerpc_pipe *drsuapi_pipe;
 184         struct dcerpc_binding *drsuapi_binding;
 185         struct drsuapi_DsBind r_drsuapi_bind;
 186         struct drsuapi_DsCrackNames r_crack_names;
 187         struct drsuapi_DsNameString names[1];
 188         struct policy_handle drsuapi_bind_handle;
 189         struct GUID drsuapi_bind_guid;
 190
 191         struct ldb_context *remote_ldb;
 192         const struct ldb_dn *account_dn;
 193         const char *account_dn_str;
 194         const char *remote_ldb_url;
 195         struct ldb_message **msgs, *msg;
 196
 197         int rtn;
 198
 199         unsigned int kvno;
 200
 201         const char * const attrs[] = {
 202                 "msDS-KeyVersionNumber",
 203                 "servicePrincipalName",
 204                 "dNSHostName",
 205                 NULL,
 206         };
 207
 208         r->out.error_string = NULL;
 209
 210         /* We need to convert between a samAccountName and domain to a
 211          * DN in the directory.  The correct way to do this is with
 212          * DRSUAPI CrackNames */
 213
 214         /* Fiddle with the bindings, so get to DRSUAPI on
 215          * NCACN_IP_TCP, sealed */
 216         tmp_ctx = talloc_named(r, 0, "libnet_JoinADSDomain temp context");
 217         if (!tmp_ctx) {
 218                 r->out.error_string = NULL;
 219                 return NT_STATUS_NO_MEMORY;
 220         }
 221
 222         drsuapi_binding = talloc(tmp_ctx, struct dcerpc_binding);
 223         if (!drsuapi_binding) {
 224                 r->out.error_string = NULL;
 225                 talloc_free(tmp_ctx);
 226                 return NT_STATUS_NO_MEMORY;
 227         }
 228
 229         *drsuapi_binding = *samr_binding;
 230         drsuapi_binding->transport = NCACN_IP_TCP;
 231         drsuapi_binding->endpoint = NULL;
 232         drsuapi_binding->flags |= DCERPC_SEAL;
 233
 234         status = dcerpc_pipe_connect_b(tmp_ctx,
 235                                        &drsuapi_pipe,
 236                                        drsuapi_binding,
 237                                        DCERPC_DRSUAPI_UUID,
 238                                        DCERPC_DRSUAPI_VERSION,
 239                                        ctx->cred,
 240                                        ctx->event_ctx);
 241         if (!NT_STATUS_IS_OK(status)) {
 242                 r->out.error_string = talloc_asprintf(r,
 243                                         "Connection to DRSUAPI pipe of PDC of domain '%s' failed: %s",
 244                                         r->in.domain_name,
 245                                         nt_errstr(status));
 246                 talloc_free(tmp_ctx);
 247                 return status;
 248         }
 249
 250         /* get a DRSUAPI pipe handle */
 251         GUID_from_string(DRSUAPI_DS_BIND_GUID, &drsuapi_bind_guid);
 252
 253         r_drsuapi_bind.in.bind_guid = &drsuapi_bind_guid;
 254         r_drsuapi_bind.in.bind_info = NULL;
 255         r_drsuapi_bind.out.bind_handle = &drsuapi_bind_handle;
 256
 257         status = dcerpc_drsuapi_DsBind(drsuapi_pipe, tmp_ctx, &r_drsuapi_bind);
 258         if (!NT_STATUS_IS_OK(status)) {
 259                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 260                         r->out.error_string
 261                                 = talloc_asprintf(r,
 262                                                   "dcerpc_drsuapi_DsBind for [%s\\%s] failed - %s\n",
 263                                                   r->in.domain_name, r->in.account_name,
 264                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 265                         talloc_free(tmp_ctx);
 266                         return status;
 267                 } else {
 268                         r->out.error_string
 269                                 = talloc_asprintf(r,
 270                                                   "dcerpc_drsuapi_DsBind for [%s\\%s] failed - %s\n",
 271                                                   r->in.domain_name, r->in.account_name,
 272                                                   nt_errstr(status));
 273                         talloc_free(tmp_ctx);
 274                         return status;
 275                 }
 276         } else if (!W_ERROR_IS_OK(r_drsuapi_bind.out.result)) {
 277                 r->out.error_string
 278                                 = talloc_asprintf(r,
 279                                                   "DsBind failed - %s\n",
 280                                                   win_errstr(r_drsuapi_bind.out.result));
 281                         talloc_free(tmp_ctx);
 282                 return NT_STATUS_UNSUCCESSFUL;
 283         }
 284
 285         /* Actually 'crack' the names */
 286         ZERO_STRUCT(r_crack_names);
 287         r_crack_names.in.bind_handle            = &drsuapi_bind_handle;
 288         r_crack_names.in.level                  = 1;
 289         r_crack_names.in.req.req1.unknown1      = 0x000004e4;
 290         r_crack_names.in.req.req1.unknown2      = 0x00000407;
 291         r_crack_names.in.req.req1.count         = 1;
 292         r_crack_names.in.req.req1.names         = names;
 293         r_crack_names.in.req.req1.format_flags  = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
 294         r_crack_names.in.req.req1.format_offered= DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY;
 295         r_crack_names.in.req.req1.format_desired= DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 296         names[0].str = dom_sid_string(tmp_ctx, r->out.account_sid);
 297         if (!names[0].str) {
 298                 r->out.error_string = NULL;
 299                 talloc_free(tmp_ctx);
 300                 return NT_STATUS_NO_MEMORY;
 301         }
 302
 303         status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
 304         if (!NT_STATUS_IS_OK(status)) {
 305                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 306                         r->out.error_string
 307                                 = talloc_asprintf(r,
 308                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 309                                                   names[0].str,
 310                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 311                         talloc_free(tmp_ctx);
 312                         return status;
 313                 } else {
 314                         r->out.error_string
 315                                 = talloc_asprintf(r,
 316                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 317                                                   names[0].str,
 318                                                   nt_errstr(status));
 319                         talloc_free(tmp_ctx);
 320                         return status;
 321                 }
 322         } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
 323                 r->out.error_string
 324                                 = talloc_asprintf(r,
 325                                                   "DsCrackNames failed - %s\n", win_errstr(r_crack_names.out.result));
 326                 talloc_free(tmp_ctx);
 327                 return NT_STATUS_UNSUCCESSFUL;
 328         } else if (r_crack_names.out.level != 1
 329                    || !r_crack_names.out.ctr.ctr1
 330                    || r_crack_names.out.ctr.ctr1->count != 1
 331                    || !r_crack_names.out.ctr.ctr1->array[0].result_name
 332                    || r_crack_names.out.ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 333                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed\n");
 334                 talloc_free(tmp_ctx);
 335                 return NT_STATUS_UNSUCCESSFUL;
 336         }
 337
 338         /* Store the DN of our machine account. */
 339         account_dn_str = r_crack_names.out.ctr.ctr1->array[0].result_name;
 340
 341         account_dn = ldb_dn_explode(tmp_ctx, account_dn_str);
 342         if (!account_dn) {
 343                 r->out.error_string = talloc_asprintf(r, "Invalid account dn: %s",
 344                                                       account_dn_str);
 345                 talloc_free(tmp_ctx);
 346                 return NT_STATUS_UNSUCCESSFUL;
 347         }
 348
 349         /* Now we know the user's DN, open with LDAP, read and modify a few things */
 350
 351         remote_ldb_url = talloc_asprintf(tmp_ctx, "ldap://%s",
 352                                          drsuapi_binding->host);
 353         if (!remote_ldb_url) {
 354                 r->out.error_string = NULL;
 355                 talloc_free(tmp_ctx);
 356                 return NT_STATUS_NO_MEMORY;
 357         }
 358
 359         remote_ldb = ldb_wrap_connect(tmp_ctx, remote_ldb_url, 0, NULL);
 360         if (!remote_ldb) {
 361                 r->out.error_string = NULL;
 362                 talloc_free(tmp_ctx);
 363                 return NT_STATUS_UNSUCCESSFUL;
 364         }
 365
 366         /* search for the user's record */
 367         rtn = ldb_search(remote_ldb, account_dn, LDB_SCOPE_BASE,
 368                              NULL, attrs, &msgs);
 369         if (rtn != 1) {
 370                 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - %s\n",
 371                                                       account_dn_str, ldb_errstring(remote_ldb));
 372                 talloc_free(tmp_ctx);
 373                 return NT_STATUS_UNSUCCESSFUL;
 374         }
 375
 376         /* If we have a kvno recorded in AD, we need it locally as well */
 377         kvno = ldb_msg_find_uint(msgs[0], "msDS-KeyVersionNumber", 0);
 378
 379         /* Prepare a new message, for the modify */
 380         msg = ldb_msg_new(tmp_ctx);
 381         if (!msg) {
 382                 r->out.error_string = NULL;
 383                 talloc_free(tmp_ctx);
 384                 return NT_STATUS_NO_MEMORY;
 385         }
 386         msg->dn = msgs[0]->dn;
 387
 388         {
 389                 const char *service_principal_name[2];
 390                 const char *dns_host_name = strlower_talloc(tmp_ctx,
 391                                                             talloc_asprintf(tmp_ctx,
 392                                                                             "%s.%s",
 393                                                                             r->in.netbios_name,
 394                                                                             realm));
 395
 396                 if (!dns_host_name) {
 397                         r->out.error_string = NULL;
 398                         talloc_free(tmp_ctx);
 399                         return NT_STATUS_NO_MEMORY;
 400                 }
 401
 402                 service_principal_name[0] = talloc_asprintf(tmp_ctx, "host/%s", dns_host_name);
 403                 if (!service_principal_name[0]) {
 404                         r->out.error_string = NULL;
 405                         talloc_free(tmp_ctx);
 406                         return NT_STATUS_NO_MEMORY;
 407                 }
 408
 409                 service_principal_name[1] = talloc_asprintf(tmp_ctx, "host/%s", strlower_talloc(tmp_ctx, r->in.netbios_name));
 410                 if (!service_principal_name[1]) {
 411                         r->out.error_string = NULL;
 412                         talloc_free(tmp_ctx);
 413                         return NT_STATUS_NO_MEMORY;
 414                 }
 415
 416                 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "dNSHostName", dns_host_name);
 417                 if (rtn == -1) {
 418                         r->out.error_string = NULL;
 419                         talloc_free(tmp_ctx);
 420                         return NT_STATUS_NO_MEMORY;
 421                 }
 422                 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "servicePrincipalName", service_principal_name[0]);
 423                 if (rtn == -1) {
 424                         r->out.error_string = NULL;
 425                         talloc_free(tmp_ctx);
 426                         return NT_STATUS_NO_MEMORY;
 427                 }
 428                 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "servicePrincipalName", service_principal_name[1]);
 429                 if (rtn == -1) {
 430                         r->out.error_string = NULL;
 431                         talloc_free(tmp_ctx);
 432                         return NT_STATUS_NO_MEMORY;
 433                 }
 434
 435                 rtn = samdb_replace(remote_ldb, tmp_ctx, msg);
 436                 if (rtn != 0) {
 437                         r->out.error_string
 438                                 = talloc_asprintf(r,
 439                                                   "Failed to replace entries on %s\n",
 440                                                   ldb_dn_linearize(tmp_ctx, msg->dn));
 441                         talloc_free(tmp_ctx);
 442                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 443                 }
 444         }
 445
 446         /* DsCrackNames to find out the DN of the domain. */
 447         r_crack_names.in.req.req1.format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
 448         r_crack_names.in.req.req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 449         names[0].str = talloc_asprintf(tmp_ctx, "%s\\", r->out.domain_name);
 450         if (!names[0].str) {
 451                 r->out.error_string = NULL;
 452                 talloc_free(tmp_ctx);
 453                 return NT_STATUS_NO_MEMORY;
 454         }
 455
 456         status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
 457         if (!NT_STATUS_IS_OK(status)) {
 458                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 459                         r->out.error_string
 460                                 = talloc_asprintf(r,
 461                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 462                                                   r->in.domain_name,
 463                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 464                         talloc_free(tmp_ctx);
 465                         return status;
 466                 } else {
 467                         r->out.error_string
 468                                 = talloc_asprintf(r,
 469                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 470                                                   r->in.domain_name,
 471                                                   nt_errstr(status));
 472                         talloc_free(tmp_ctx);
 473                         return status;
 474                 }
 475         } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
 476                 r->out.error_string
 477                         = talloc_asprintf(r,
 478                                           "DsCrackNames failed - %s\n", win_errstr(r_crack_names.out.result));
 479                 talloc_free(tmp_ctx);
 480                 return NT_STATUS_UNSUCCESSFUL;
 481         } else if (r_crack_names.out.level != 1
 482                    || !r_crack_names.out.ctr.ctr1
 483                    || r_crack_names.out.ctr.ctr1->count != 1
 484                    || !r_crack_names.out.ctr.ctr1->array[0].result_name
 485                    || r_crack_names.out.ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 486                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed\n");
 487                 talloc_free(tmp_ctx);
 488                 return NT_STATUS_UNSUCCESSFUL;
 489         }
 490
 491         /* Store the account DN. */
 492         r->out.account_dn_str = account_dn_str;
 493         talloc_steal(r, account_dn_str);
 494
 495         /* Store the domain DN. */
 496         r->out.domain_dn_str = r_crack_names.out.ctr.ctr1->array[0].result_name;
 497         talloc_steal(r, r_crack_names.out.ctr.ctr1->array[0].result_name);
 498
 499         r->out.kvno = kvno;
 500
 501         status = libnet_JoinSite(ctx,
 502                                  drsuapi_pipe, drsuapi_bind_handle,
 503                                  remote_ldb, r);
 504         talloc_free(tmp_ctx);
 505
 506         return status;
 507 }
 508
 509 /*
 510  * do a domain join using DCERPC/SAMR calls
 511  * 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation)
 512  *    is it correct to contact the the pdc of the domain of the user who's password should be set?
 513  * 2. do a samr_Connect to get a policy handle
 514  * 3. do a samr_LookupDomain to get the domain sid
 515  * 4. do a samr_OpenDomain to get a domain handle
 516  * 5. do a samr_CreateAccount to try and get a new account
 517  *
 518  * If that fails, do:
 519  * 5.1. do a samr_LookupNames to get the users rid
 520  * 5.2. do a samr_OpenUser to get a user handle
 521  *
 522  * 6. call libnet_SetPassword_samr_handle to set the password
 523  *
 524  * 7. do a samrSetUserInfo to set the account flags
 525  * 8. do some ADS specific things when we join as Domain Controller,
 526  *    look at libnet_joinADSDomain() for the details
 527  */
 528 NTSTATUS libnet_JoinDomain(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_JoinDomain *r)
 529 {
 530         TALLOC_CTX *tmp_ctx;
 531
 532         NTSTATUS status, cu_status;
 533         struct libnet_RpcConnect *c;
 534         struct lsa_ObjectAttribute attr;
 535         struct lsa_QosInfo qos;
 536         struct lsa_OpenPolicy2 lsa_open_policy;
 537         struct policy_handle lsa_p_handle;
 538         struct lsa_QueryInfoPolicy2 lsa_query_info2;
 539         struct lsa_QueryInfoPolicy lsa_query_info;
 540
 541         struct dcerpc_binding *samr_binding;
 542         struct dcerpc_pipe *samr_pipe;
 543         struct dcerpc_pipe *lsa_pipe;
 544         struct samr_Connect sc;
 545         struct policy_handle p_handle;
 546         struct samr_OpenDomain od;
 547         struct policy_handle d_handle;
 548         struct samr_LookupNames ln;
 549         struct samr_OpenUser ou;
 550         struct samr_CreateUser2 cu;
 551         struct policy_handle *u_handle = NULL;
 552         struct samr_QueryUserInfo qui;
 553         struct samr_SetUserInfo sui;
 554         union samr_UserInfo u_info;
 555         union libnet_SetPassword r2;
 556         struct samr_GetUserPwInfo pwp;
 557         struct lsa_String samr_account_name;
 558
 559         uint32_t acct_flags;
 560         uint32_t rid, access_granted;
 561         int policy_min_pw_len = 0;
 562
 563         struct dom_sid *domain_sid = NULL;
 564         struct dom_sid *account_sid = NULL;
 565         const char *domain_name = NULL;
 566         const char *password_str = NULL;
 567         const char *realm = NULL; /* Also flag for remote being AD */
 568
 569
 570         r->out.error_string = NULL;
 571         r2.samr_handle.out.error_string = NULL;
 572
 573         tmp_ctx = talloc_named(mem_ctx, 0, "libnet_Join temp context");
 574         if (!tmp_ctx) {
 575                 r->out.error_string = NULL;
 576                 return NT_STATUS_NO_MEMORY;
 577         }
 578
 579         u_handle = talloc(tmp_ctx, struct policy_handle);
 580         if (!u_handle) {
 581                 r->out.error_string = NULL;
 582                 talloc_free(tmp_ctx);
 583                 return NT_STATUS_NO_MEMORY;
 584         }
 585
 586         samr_pipe = talloc(tmp_ctx, struct dcerpc_pipe);
 587         if (!samr_pipe) {
 588                 r->out.error_string = NULL;
 589                 talloc_free(tmp_ctx);
 590                 return NT_STATUS_NO_MEMORY;
 591         }
 592
 593         c = talloc(tmp_ctx, struct libnet_RpcConnect);
 594         if (!c) {
 595                 r->out.error_string = NULL;
 596                 talloc_free(tmp_ctx);
 597                 return NT_STATUS_NO_MEMORY;
 598         }
 599
 600         /* prepare connect to the LSA pipe of PDC */
 601         if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 602                 c->level             = LIBNET_RPC_CONNECT_PDC;
 603                 c->in.domain_name    = r->in.domain_name;
 604         } else {
 605                 c->level             = LIBNET_RPC_CONNECT_BINDING;
 606                 c->in.binding        = r->in.binding;
 607         }
 608         c->in.dcerpc_iface_name      = DCERPC_LSARPC_NAME;
 609         c->in.dcerpc_iface_uuid      = DCERPC_LSARPC_UUID;
 610         c->in.dcerpc_iface_version   = DCERPC_LSARPC_VERSION;
 611
 612         /* connect to the LSA pipe of the PDC */
 613
 614         status = libnet_RpcConnect(ctx, c, c);
 615         if (!NT_STATUS_IS_OK(status)) {
 616                 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 617                         r->out.error_string = talloc_asprintf(mem_ctx,
 618                                                               "Connection to LSA pipe of PDC of domain '%s' failed: %s",
 619                                                               r->in.domain_name, nt_errstr(status));
 620                 } else {
 621                         r->out.error_string = talloc_asprintf(mem_ctx,
 622                                                               "Connection to LSA pipe with binding '%s' failed: %s",
 623                                                               r->in.binding, nt_errstr(status));
 624                 }
 625                 talloc_free(tmp_ctx);
 626                 return status;
 627         }
 628         lsa_pipe = c->out.dcerpc_pipe;
 629
 630         /* Get an LSA policy handle */
 631
 632         ZERO_STRUCT(lsa_p_handle);
 633         qos.len = 0;
 634         qos.impersonation_level = 2;
 635         qos.context_mode = 1;
 636         qos.effective_only = 0;
 637
 638         attr.len = 0;
 639         attr.root_dir = NULL;
 640         attr.object_name = NULL;
 641         attr.attributes = 0;
 642         attr.sec_desc = NULL;
 643         attr.sec_qos = &qos;
 644
 645         lsa_open_policy.in.attr = &attr;
 646
 647         lsa_open_policy.in.system_name = talloc_asprintf(tmp_ctx, "\\");
 648         if (!lsa_open_policy.in.system_name) {
 649                 r->out.error_string = NULL;
 650                 talloc_free(tmp_ctx);
 651                 return NT_STATUS_NO_MEMORY;
 652         }
 653
 654         lsa_open_policy.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 655         lsa_open_policy.out.handle = &lsa_p_handle;
 656
 657         status = dcerpc_lsa_OpenPolicy2(lsa_pipe, tmp_ctx, &lsa_open_policy);
 658         if (!NT_STATUS_IS_OK(status)) {
 659                 r->out.error_string = talloc_asprintf(mem_ctx,
 660                                                 "lsa_OpenPolicy2 failed: %s",
 661                                                 nt_errstr(status));
 662                 talloc_free(tmp_ctx);
 663                 return status;
 664         }
 665
 666         /* Look to see if this is ADS (a fault indicates NT4 or Samba 3.0) */
 667
 668         lsa_query_info2.in.handle = &lsa_p_handle;
 669         lsa_query_info2.in.level = LSA_POLICY_INFO_DNS;
 670
 671         status = dcerpc_lsa_QueryInfoPolicy2(lsa_pipe, tmp_ctx,
 672                                              &lsa_query_info2);
 673
 674         if (!NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 675                 if (!NT_STATUS_IS_OK(status)) {
 676                         r->out.error_string = talloc_asprintf(mem_ctx,
 677                                                         "lsa_QueryInfoPolicy2 failed: %s",
 678                                                         nt_errstr(status));
 679                         talloc_free(tmp_ctx);
 680                         return status;
 681                 }
 682                 realm = lsa_query_info2.out.info->dns.dns_domain.string;
 683         }
 684
 685         /* Grab the domain SID (regardless of the result of the previous call */
 686
 687         lsa_query_info.in.handle = &lsa_p_handle;
 688         lsa_query_info.in.level = LSA_POLICY_INFO_DOMAIN;
 689
 690         status = dcerpc_lsa_QueryInfoPolicy(lsa_pipe, tmp_ctx,
 691                                              &lsa_query_info);
 692
 693         if (!NT_STATUS_IS_OK(status)) {
 694                 r->out.error_string = talloc_asprintf(mem_ctx,
 695                                                 "lsa_QueryInfoPolicy2 failed: %s",
 696                                                 nt_errstr(status));
 697                 talloc_free(tmp_ctx);
 698                 return status;
 699         }
 700
 701         domain_sid = lsa_query_info.out.info->domain.sid;
 702         domain_name = lsa_query_info.out.info->domain.name.string;
 703
 704         DEBUG(0, ("Joining domain %s\n", domain_name));
 705
 706         /*
 707           establish a SAMR connection, on the same CIFS transport
 708         */
 709
 710         /* Find the original binding string */
 711         status = dcerpc_parse_binding(tmp_ctx, lsa_pipe->conn->binding_string, &samr_binding);
 712         if (!NT_STATUS_IS_OK(status)) {
 713                 r->out.error_string = talloc_asprintf(mem_ctx,
 714                                                 "Failed to parse lsa binding '%s'",
 715                                                 lsa_pipe->conn->binding_string);
 716                 talloc_free(tmp_ctx);
 717                 return status;
 718         }
 719
 720         /* Make binding string for samr, not the other pipe */
 721         status = dcerpc_epm_map_binding(tmp_ctx, samr_binding,
 722                                         DCERPC_SAMR_UUID, DCERPC_SAMR_VERSION,
 723                                         lsa_pipe->conn->event_ctx);
 724         if (!NT_STATUS_IS_OK(status)) {
 725                 r->out.error_string = talloc_asprintf(mem_ctx,
 726                                                 "Failed to map DCERPC/TCP NCACN_NP pipe for '%s' - %s",
 727                                                 DCERPC_NETLOGON_UUID,
 728                                                 nt_errstr(status));
 729                 talloc_free(tmp_ctx);
 730                 return status;
 731         }
 732
 733         /* Setup a SAMR connection */
 734         status = dcerpc_secondary_connection(lsa_pipe, &samr_pipe, samr_binding);
 735         if (!NT_STATUS_IS_OK(status)) {
 736                 r->out.error_string = talloc_asprintf(mem_ctx,
 737                                                 "SAMR secondary connection failed: %s",
 738                                                 nt_errstr(status));
 739                 talloc_free(tmp_ctx);
 740                 return status;
 741         }
 742
 743         status = dcerpc_pipe_auth(samr_pipe, samr_binding, DCERPC_SAMR_UUID,
 744                                   DCERPC_SAMR_VERSION, ctx->cred);
 745         if (!NT_STATUS_IS_OK(status)) {
 746                 r->out.error_string = talloc_asprintf(mem_ctx,
 747                                                 "SAMR bind failed: %s",
 748                                                 nt_errstr(status));
 749                 talloc_free(tmp_ctx);
 750                 return status;
 751         }
 752
 753         /* prepare samr_Connect */
 754         ZERO_STRUCT(p_handle);
 755         sc.in.system_name = NULL;
 756         sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 757         sc.out.connect_handle = &p_handle;
 758
 759         /* 2. do a samr_Connect to get a policy handle */
 760         status = dcerpc_samr_Connect(samr_pipe, tmp_ctx, &sc);
 761         if (!NT_STATUS_IS_OK(status)) {
 762                 r->out.error_string = talloc_asprintf(mem_ctx,
 763                                                 "samr_Connect failed: %s",
 764                                                 nt_errstr(status));
 765                 talloc_free(tmp_ctx);
 766                 return status;
 767         }
 768
 769         /* check result of samr_Connect */
 770         if (!NT_STATUS_IS_OK(sc.out.result)) {
 771                 r->out.error_string = talloc_asprintf(mem_ctx,
 772                                                 "samr_Connect failed: %s",
 773                                                 nt_errstr(sc.out.result));
 774                 status = sc.out.result;
 775                 talloc_free(tmp_ctx);
 776                 return status;
 777         }
 778
 779         /* prepare samr_OpenDomain */
 780         ZERO_STRUCT(d_handle);
 781         od.in.connect_handle = &p_handle;
 782         od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 783         od.in.sid = domain_sid;
 784         od.out.domain_handle = &d_handle;
 785
 786         /* 4. do a samr_OpenDomain to get a domain handle */
 787         status = dcerpc_samr_OpenDomain(samr_pipe, tmp_ctx, &od);
 788         if (!NT_STATUS_IS_OK(status)) {
 789                 r->out.error_string = talloc_asprintf(mem_ctx,
 790                                         "samr_OpenDomain for [%s] failed: %s",
 791                                         r->in.domain_name,
 792                                         nt_errstr(status));
 793                 talloc_free(tmp_ctx);
 794                 return status;
 795         }
 796
 797         /* prepare samr_CreateUser2 */
 798         ZERO_STRUCTP(u_handle);
 799         cu.in.domain_handle  = &d_handle;
 800         cu.in.access_mask     = SEC_FLAG_MAXIMUM_ALLOWED;
 801         samr_account_name.string = r->in.account_name;
 802         cu.in.account_name    = &samr_account_name;
 803         cu.in.acct_flags      = r->in.acct_type;
 804         cu.out.user_handle    = u_handle;
 805         cu.out.rid            = &rid;
 806         cu.out.access_granted = &access_granted;
 807
 808         /* 4. do a samr_CreateUser2 to get an account handle, or an error */
 809         cu_status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
 810         status = cu_status;
 811         if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 812                         r->out.error_string = talloc_asprintf(mem_ctx,
 813                                                                 "samr_CreateUser2 for [%s] failed: %s\n",
 814                                                                 r->in.domain_name, nt_errstr(status));
 815                         talloc_free(tmp_ctx);
 816                         return status;
 817
 818         } else if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 819                 /* prepare samr_LookupNames */
 820                 ln.in.domain_handle = &d_handle;
 821                 ln.in.num_names = 1;
 822                 ln.in.names = talloc_array(tmp_ctx, struct lsa_String, 1);
 823                 if (!ln.in.names) {
 824                         r->out.error_string = NULL;
 825                         talloc_free(tmp_ctx);
 826                         return NT_STATUS_NO_MEMORY;
 827                 }
 828                 ln.in.names[0].string = r->in.account_name;
 829
 830                 /* 5. do a samr_LookupNames to get the users rid */
 831                 status = dcerpc_samr_LookupNames(samr_pipe, tmp_ctx, &ln);
 832                 if (!NT_STATUS_IS_OK(status)) {
 833                         r->out.error_string = talloc_asprintf(mem_ctx,
 834                                                 "samr_LookupNames for [%s] failed: %s",
 835                                                 r->in.account_name,
 836                                                 nt_errstr(status));
 837                         talloc_free(tmp_ctx);
 838                         return status;
 839                 }
 840
 841                 /* check if we got one RID for the user */
 842                 if (ln.out.rids.count != 1) {
 843                         r->out.error_string = talloc_asprintf(mem_ctx,
 844                                                               "samr_LookupNames for [%s] returns %d RIDs\n",
 845                                                               r->in.account_name, ln.out.rids.count);
 846                         talloc_free(tmp_ctx);
 847                         return NT_STATUS_INVALID_PARAMETER;
 848                 }
 849
 850                 /* prepare samr_OpenUser */
 851                 ZERO_STRUCTP(u_handle);
 852                 ou.in.domain_handle = &d_handle;
 853                 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 854                 ou.in.rid = ln.out.rids.ids[0];
 855                 rid = ou.in.rid;
 856                 ou.out.user_handle = u_handle;
 857
 858                 /* 6. do a samr_OpenUser to get a user handle */
 859                 status = dcerpc_samr_OpenUser(samr_pipe, tmp_ctx, &ou);
 860                 if (!NT_STATUS_IS_OK(status)) {
 861                         r->out.error_string = talloc_asprintf(mem_ctx,
 862                                                         "samr_OpenUser for [%s] failed: %s",
 863                                                         r->in.account_name,
 864                                                         nt_errstr(status));
 865                         talloc_free(tmp_ctx);
 866                         return status;
 867                 }
 868         }
 869         /* Find out what password policy this user has */
 870         pwp.in.user_handle = u_handle;
 871
 872         status = dcerpc_samr_GetUserPwInfo(samr_pipe, tmp_ctx, &pwp);
 873         if (NT_STATUS_IS_OK(status)) {
 874                 policy_min_pw_len = pwp.out.info.min_password_length;
 875         }
 876
 877         /* Grab a password of that minimum length */
 878
 879         password_str = generate_random_str(tmp_ctx, MAX(8, policy_min_pw_len));
 880
 881         r2.samr_handle.level            = LIBNET_SET_PASSWORD_SAMR_HANDLE;
 882         r2.samr_handle.in.account_name  = r->in.account_name;
 883         r2.samr_handle.in.newpassword   = password_str;
 884         r2.samr_handle.in.user_handle   = u_handle;
 885         r2.samr_handle.in.dcerpc_pipe   = samr_pipe;
 886
 887         status = libnet_SetPassword(ctx, tmp_ctx, &r2);
 888         if (!NT_STATUS_IS_OK(status)) {
 889                 r->out.error_string = talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 890                 talloc_free(tmp_ctx);
 891                 return status;
 892         }
 893
 894         /* prepare samr_QueryUserInfo (get flags) */
 895         qui.in.user_handle = u_handle;
 896         qui.in.level = 16;
 897
 898         status = dcerpc_samr_QueryUserInfo(samr_pipe, tmp_ctx, &qui);
 899         if (!NT_STATUS_IS_OK(status)) {
 900                 r->out.error_string = talloc_asprintf(mem_ctx,
 901                                                 "samr_QueryUserInfo for [%s] failed: %s",
 902                                                 r->in.account_name,
 903                                                 nt_errstr(status));
 904                 talloc_free(tmp_ctx);
 905                 return status;
 906         }
 907
 908         if (!qui.out.info) {
 909                 status = NT_STATUS_INVALID_PARAMETER;
 910                 r->out.error_string
 911                         = talloc_asprintf(mem_ctx,
 912                                           "samr_QueryUserInfo failed to return qui.out.info for [%s]: %s\n",
 913                                           r->in.account_name, nt_errstr(status));
 914                 talloc_free(tmp_ctx);
 915                 return status;
 916         }
 917
 918         /* Possibly change account type (if we are creating a new account) */
 919         if (((qui.out.info->info16.acct_flags & (ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST))
 920             != r->in.acct_type) && (!NT_STATUS_EQUAL(cu_status, NT_STATUS_USER_EXISTS))) {
 921                 acct_flags = (qui.out.info->info16.acct_flags & ~(ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST))
 922                               | r->in.acct_type;
 923         } else {
 924                 acct_flags = qui.out.info->info16.acct_flags;
 925         }
 926
 927         acct_flags = (acct_flags & ~ACB_DISABLED);
 928
 929         /* reset flags (if required) */
 930         if (acct_flags != qui.out.info->info16.acct_flags) {
 931                 ZERO_STRUCT(u_info);
 932                 u_info.info16.acct_flags = acct_flags;
 933
 934                 sui.in.user_handle = u_handle;
 935                 sui.in.info = &u_info;
 936                 sui.in.level = 16;
 937
 938                 dcerpc_samr_SetUserInfo(samr_pipe, tmp_ctx, &sui);
 939                 if (!NT_STATUS_IS_OK(status)) {
 940                         r->out.error_string = talloc_asprintf(mem_ctx,
 941                                                         "samr_SetUserInfo for [%s] failed to remove ACB_DISABLED flag: %s",
 942                                                         r->in.account_name,
 943                                                         nt_errstr(status));
 944                         talloc_free(tmp_ctx);
 945                         return status;
 946                 }
 947         }
 948
 949         account_sid = dom_sid_add_rid(mem_ctx, domain_sid, rid);
 950         if (!account_sid) {
 951                 r->out.error_string = NULL;
 952                 talloc_free(tmp_ctx);
 953                 return NT_STATUS_NO_MEMORY;
 954         }
 955
 956         r->out.join_password = password_str;
 957         talloc_steal(mem_ctx, password_str);
 958
 959         r->out.domain_sid = domain_sid;
 960         talloc_steal(mem_ctx, domain_sid);
 961
 962         r->out.account_sid = account_sid;
 963         talloc_steal(mem_ctx, account_sid);
 964
 965         r->out.domain_name = domain_name;
 966         talloc_steal(mem_ctx, domain_name);
 967         r->out.realm = realm;
 968         talloc_steal(mem_ctx, realm);
 969         r->out.lsa_pipe = lsa_pipe;
 970         talloc_steal(mem_ctx, lsa_pipe);
 971         r->out.samr_pipe = samr_pipe;
 972         talloc_steal(mem_ctx, samr_pipe);
 973         r->out.samr_binding = samr_binding;
 974         talloc_steal(mem_ctx, samr_binding);
 975         r->out.user_handle = u_handle;
 976         talloc_steal(mem_ctx, u_handle);
 977         r->out.error_string = r2.samr_handle.out.error_string;
 978         talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 979         r->out.kvno = 0;
 980         r->out.server_dn_str = NULL;
 981         talloc_free(tmp_ctx);
 982
 983         /* Now, if it was AD, then we want to start looking changing a
 984          * few more things.  Otherwise, we are done. */
 985         if (realm
 986             && (r->in.acct_type ==  ACB_SVRTRUST)
 987             && (!NT_STATUS_EQUAL(cu_status, NT_STATUS_USER_EXISTS))) {
 988
 989                 status = libnet_JoinADSDomain(ctx, r);
 990                 return status;
 991         }
 992
 993         return cu_status;
 994 }
 995
 996 static NTSTATUS libnet_Join_primary_domain(struct libnet_context *ctx,
 997                                            TALLOC_CTX *mem_ctx,
 998                                            struct libnet_Join *r)
 999 {
1000         NTSTATUS status;
1001         TALLOC_CTX *tmp_mem;
1002         struct libnet_JoinDomain *r2;
1003         int ret, rtn;
1004         struct ldb_context *ldb;
1005         const struct ldb_dn *base_dn;
1006         struct ldb_message **msgs, *msg;
1007         const char *sct;
1008         const char * const attrs[] = {
1009                 "whenChanged",
1010                 "secret",
1011                 "priorSecret",
1012                 "priorChanged",
1013                 NULL
1014         };
1015         uint32_t acct_type = 0;
1016         const char *account_name;
1017         const char *netbios_name;
1018
1019         r->out.error_string = NULL;
1020
1021         tmp_mem = talloc_new(mem_ctx);
1022         if (!tmp_mem) {
1023                 return NT_STATUS_NO_MEMORY;
1024         }
1025
1026         r2 = talloc(tmp_mem, struct libnet_JoinDomain);
1027         if (!r2) {
1028                 r->out.error_string = NULL;
1029                 talloc_free(tmp_mem);
1030                 return NT_STATUS_NO_MEMORY;
1031         }
1032
1033         if (r->in.secure_channel_type == SEC_CHAN_BDC) {
1034                 acct_type = ACB_SVRTRUST;
1035         } else if (r->in.secure_channel_type == SEC_CHAN_WKSTA) {
1036                 acct_type = ACB_WSTRUST;
1037         } else {
1038                 r->out.error_string = NULL;
1039                 talloc_free(tmp_mem);
1040                 return NT_STATUS_INVALID_PARAMETER;
1041         }
1042
1043         if ((r->in.netbios_name != NULL) && (r->in.level != LIBNET_JOIN_AUTOMATIC)) {
1044                 netbios_name = r->in.netbios_name;
1045         } else {
1046                 netbios_name = talloc_asprintf(tmp_mem, "%s", lp_netbios_name());
1047                 if (!netbios_name) {
1048                         r->out.error_string = NULL;
1049                         talloc_free(tmp_mem);
1050                         return NT_STATUS_NO_MEMORY;
1051                 }
1052         }
1053
1054         account_name = talloc_asprintf(tmp_mem, "%s$", netbios_name);
1055         if (!account_name) {
1056                 r->out.error_string = NULL;
1057                 talloc_free(tmp_mem);
1058                 return NT_STATUS_NO_MEMORY;
1059         }
1060
1061         /*
1062          * Local secrets are stored in secrets.ldb
1063          * open it to make sure we can write the info into it after the join
1064          */
1065         ldb = secrets_db_connect(tmp_mem);
1066         if (!ldb) {
1067                 r->out.error_string
1068                         = talloc_asprintf(mem_ctx,
1069                                           "Could not open secrets database\n");
1070                 talloc_free(tmp_mem);
1071                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1072         }
1073
1074         /*
1075          * join the domain
1076          */
1077         ZERO_STRUCTP(r2);
1078         r2->in.domain_name      = r->in.domain_name;
1079         r2->in.account_name     = account_name;
1080         r2->in.netbios_name     = netbios_name;
1081         r2->in.level            = LIBNET_JOINDOMAIN_AUTOMATIC;
1082         r2->in.acct_type        = acct_type;
1083         status = libnet_JoinDomain(ctx, r2, r2);
1084         if (!NT_STATUS_IS_OK(status)) {
1085                 r->out.error_string = talloc_steal(mem_ctx, r2->out.error_string);
1086                 talloc_free(tmp_mem);
1087                 return status;
1088         }
1089
1090         /*
1091          * now prepare the record for secrets.ldb
1092          */
1093         sct = talloc_asprintf(tmp_mem, "%d", r->in.secure_channel_type);
1094         if (!sct) {
1095                 r->out.error_string = NULL;
1096                 talloc_free(tmp_mem);
1097                 return NT_STATUS_NO_MEMORY;
1098         }
1099
1100         msg = ldb_msg_new(tmp_mem);
1101         if (!msg) {
1102                 r->out.error_string = NULL;
1103                 talloc_free(tmp_mem);
1104                 return NT_STATUS_NO_MEMORY;
1105         }
1106
1107         base_dn = ldb_dn_explode(tmp_mem, "cn=Primary Domains");
1108         if (!base_dn) {
1109                 r->out.error_string = NULL;
1110                 talloc_free(tmp_mem);
1111                 return NT_STATUS_NO_MEMORY;
1112         }
1113
1114         msg->dn = ldb_dn_build_child(tmp_mem, "flatname", r2->out.domain_name, base_dn);
1115         if (!msg->dn) {
1116                 r->out.error_string = NULL;
1117                 talloc_free(tmp_mem);
1118                 return NT_STATUS_NO_MEMORY;
1119         }
1120
1121         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "flatname", r2->out.domain_name);
1122         if (rtn == -1) {
1123                 r->out.error_string = NULL;
1124                 talloc_free(tmp_mem);
1125                 return NT_STATUS_NO_MEMORY;
1126         }
1127
1128         if (r2->out.realm) {
1129                 rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "realm", r2->out.realm);
1130                 if (rtn == -1) {
1131                         r->out.error_string = NULL;
1132                         talloc_free(tmp_mem);
1133                         return NT_STATUS_NO_MEMORY;
1134                 }
1135         }
1136
1137         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "objectClass", "primaryDomain");
1138         if (rtn == -1) {
1139                 r->out.error_string = NULL;
1140                 talloc_free(tmp_mem);
1141                 return NT_STATUS_NO_MEMORY;
1142         }
1143
1144         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
1145         if (rtn == -1) {
1146                 r->out.error_string = NULL;
1147                 talloc_free(tmp_mem);
1148                 return NT_STATUS_NO_MEMORY;
1149         }
1150
1151         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1152         if (rtn == -1) {
1153                 r->out.error_string = NULL;
1154                 talloc_free(tmp_mem);
1155                 return NT_STATUS_NO_MEMORY;
1156         }
1157
1158         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1159         if (rtn == -1) {
1160                 r->out.error_string = NULL;
1161                 talloc_free(tmp_mem);
1162                 return NT_STATUS_NO_MEMORY;
1163         }
1164
1165         if (r2->out.kvno) {
1166                 rtn = samdb_msg_add_uint(ldb, tmp_mem, msg, "msDS-KeyVersionNumber",
1167                                          r2->out.kvno);
1168                 if (rtn == -1) {
1169                         r->out.error_string = NULL;
1170                         talloc_free(tmp_mem);
1171                         return NT_STATUS_NO_MEMORY;
1172                 }
1173         }
1174
1175         if (r2->out.domain_sid) {
1176                 rtn = samdb_msg_add_dom_sid(ldb, tmp_mem, msg, "objectSid",
1177                                             r2->out.domain_sid);
1178                 if (rtn == -1) {
1179                         r->out.error_string = NULL;
1180                         talloc_free(tmp_mem);
1181                         return NT_STATUS_NO_MEMORY;
1182                 }
1183         }
1184
1185         /*
1186          * search for the secret record
1187          * - remove the records we find
1188          * - and fetch the old secret and store it under priorSecret
1189          */
1190         ret = gendb_search(ldb,
1191                            tmp_mem, base_dn,
1192                            &msgs, attrs,
1193                            "(|" SECRETS_PRIMARY_DOMAIN_FILTER "(realm=%s))",
1194                            r2->out.domain_name, r2->out.realm);
1195         if (ret == 0) {
1196         } else if (ret == -1) {
1197                 r->out.error_string
1198                         = talloc_asprintf(mem_ctx,
1199                                           "Search for domain: %s and realm: %s failed: %s",
1200                                           r2->out.domain_name, r2->out.realm, ldb_errstring(ldb));
1201                 talloc_free(tmp_mem);
1202                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1203         } else {
1204                 const struct ldb_val *prior_secret;
1205                 const struct ldb_val *prior_modified_time;
1206                 int i;
1207
1208                 for (i = 0; i < ret; i++) {
1209                         ldb_delete(ldb, msgs[i]->dn);
1210                 }
1211
1212                 prior_secret = ldb_msg_find_ldb_val(msgs[0], "secret");
1213                 if (prior_secret) {
1214                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorSecret", prior_secret);
1215                         if (rtn == -1) {
1216                                 r->out.error_string = NULL;
1217                                 talloc_free(tmp_mem);
1218                                 return NT_STATUS_NO_MEMORY;
1219                         }
1220                 }
1221                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
1222                 if (rtn == -1) {
1223                         r->out.error_string = NULL;
1224                         talloc_free(tmp_mem);
1225                         return NT_STATUS_NO_MEMORY;
1226                 }
1227
1228                 prior_modified_time = ldb_msg_find_ldb_val(msgs[0],
1229                                                            "whenChanged");
1230                 if (prior_modified_time) {
1231                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorWhenChanged",
1232                                                   prior_modified_time);
1233                         if (rtn == -1) {
1234                                 r->out.error_string = NULL;
1235                                 talloc_free(tmp_mem);
1236                                 return NT_STATUS_NO_MEMORY;
1237                         }
1238                 }
1239
1240                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1241                 if (rtn == -1) {
1242                         r->out.error_string = NULL;
1243                         talloc_free(tmp_mem);
1244                         return NT_STATUS_NO_MEMORY;
1245                 }
1246
1247                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1248                 if (rtn == -1) {
1249                         r->out.error_string = NULL;
1250                         talloc_free(tmp_mem);
1251                         return NT_STATUS_NO_MEMORY;
1252                 }
1253         }
1254
1255         /* create the secret */
1256         ret = samdb_add(ldb, tmp_mem, msg);
1257         if (ret != 0) {
1258                 r->out.error_string = talloc_asprintf(mem_ctx, "Failed to create secret record %s\n",
1259                                                       ldb_dn_linearize(ldb, msg->dn));
1260                 talloc_free(tmp_mem);
1261                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1262         }
1263
1264         /* move all out parameter to the callers TALLOC_CTX */
1265         r->out.error_string     = NULL;
1266         r->out.join_password    = r2->out.join_password;
1267         talloc_steal(mem_ctx, r2->out.join_password);
1268         r->out.domain_sid       = r2->out.domain_sid;
1269         talloc_steal(mem_ctx, r2->out.domain_sid);
1270         talloc_free(tmp_mem);
1271         return NT_STATUS_OK;
1272 }
1273
1274 NTSTATUS libnet_Join(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_Join *r)
1275 {
1276         switch (r->in.secure_channel_type) {
1277                 case SEC_CHAN_WKSTA:
1278                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1279                 case SEC_CHAN_BDC:
1280                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1281                 case SEC_CHAN_DOMAIN:
1282                         break;
1283         }
1284
1285         r->out.error_string = talloc_asprintf(mem_ctx,
1286                                 "Invalid secure channel type specified (%08X) attempting to join domain %s",
1287                                 r->in.secure_channel_type, r->in.domain_name);
1288         return NT_STATUS_INVALID_PARAMETER;
1289 }
1290
1291