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_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(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(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(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
 231         /* DRSUAPI is only available on IP_TCP, and locally on NCALRPC */
 232         if (drsuapi_binding->transport != NCALRPC) {
 233                 drsuapi_binding->transport = NCACN_IP_TCP;
 234         }
 235         drsuapi_binding->endpoint = NULL;
 236         drsuapi_binding->flags |= DCERPC_SEAL;
 237
 238         status = dcerpc_pipe_connect_b(tmp_ctx,
 239                                        &drsuapi_pipe,
 240                                        drsuapi_binding,
 241                                        DCERPC_DRSUAPI_UUID,
 242                                        DCERPC_DRSUAPI_VERSION,
 243                                        ctx->cred,
 244                                        ctx->event_ctx);
 245         if (!NT_STATUS_IS_OK(status)) {
 246                 r->out.error_string = talloc_asprintf(r,
 247                                         "Connection to DRSUAPI pipe of PDC of domain '%s' failed: %s",
 248                                         r->in.domain_name,
 249                                         nt_errstr(status));
 250                 talloc_free(tmp_ctx);
 251                 return status;
 252         }
 253
 254         /* get a DRSUAPI pipe handle */
 255         GUID_from_string(DRSUAPI_DS_BIND_GUID, &drsuapi_bind_guid);
 256
 257         r_drsuapi_bind.in.bind_guid = &drsuapi_bind_guid;
 258         r_drsuapi_bind.in.bind_info = NULL;
 259         r_drsuapi_bind.out.bind_handle = &drsuapi_bind_handle;
 260
 261         status = dcerpc_drsuapi_DsBind(drsuapi_pipe, tmp_ctx, &r_drsuapi_bind);
 262         if (!NT_STATUS_IS_OK(status)) {
 263                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 264                         r->out.error_string
 265                                 = talloc_asprintf(r,
 266                                                   "dcerpc_drsuapi_DsBind for [%s\\%s] failed - %s\n",
 267                                                   r->in.domain_name, r->in.account_name,
 268                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 269                         talloc_free(tmp_ctx);
 270                         return status;
 271                 } else {
 272                         r->out.error_string
 273                                 = talloc_asprintf(r,
 274                                                   "dcerpc_drsuapi_DsBind for [%s\\%s] failed - %s\n",
 275                                                   r->in.domain_name, r->in.account_name,
 276                                                   nt_errstr(status));
 277                         talloc_free(tmp_ctx);
 278                         return status;
 279                 }
 280         } else if (!W_ERROR_IS_OK(r_drsuapi_bind.out.result)) {
 281                 r->out.error_string
 282                                 = talloc_asprintf(r,
 283                                                   "DsBind failed - %s\n",
 284                                                   win_errstr(r_drsuapi_bind.out.result));
 285                         talloc_free(tmp_ctx);
 286                 return NT_STATUS_UNSUCCESSFUL;
 287         }
 288
 289         /* Actually 'crack' the names */
 290         ZERO_STRUCT(r_crack_names);
 291         r_crack_names.in.bind_handle            = &drsuapi_bind_handle;
 292         r_crack_names.in.level                  = 1;
 293         r_crack_names.in.req.req1.unknown1      = 0x000004e4;
 294         r_crack_names.in.req.req1.unknown2      = 0x00000407;
 295         r_crack_names.in.req.req1.count         = 1;
 296         r_crack_names.in.req.req1.names         = names;
 297         r_crack_names.in.req.req1.format_flags  = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
 298         r_crack_names.in.req.req1.format_offered= DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY;
 299         r_crack_names.in.req.req1.format_desired= DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 300         names[0].str = dom_sid_string(tmp_ctx, r->out.account_sid);
 301         if (!names[0].str) {
 302                 r->out.error_string = NULL;
 303                 talloc_free(tmp_ctx);
 304                 return NT_STATUS_NO_MEMORY;
 305         }
 306
 307         status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
 308         if (!NT_STATUS_IS_OK(status)) {
 309                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 310                         r->out.error_string
 311                                 = talloc_asprintf(r,
 312                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 313                                                   names[0].str,
 314                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 315                         talloc_free(tmp_ctx);
 316                         return status;
 317                 } else {
 318                         r->out.error_string
 319                                 = talloc_asprintf(r,
 320                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s\n",
 321                                                   names[0].str,
 322                                                   nt_errstr(status));
 323                         talloc_free(tmp_ctx);
 324                         return status;
 325                 }
 326         } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
 327                 r->out.error_string
 328                                 = talloc_asprintf(r,
 329                                                   "DsCrackNames failed - %s\n", win_errstr(r_crack_names.out.result));
 330                 talloc_free(tmp_ctx);
 331                 return NT_STATUS_UNSUCCESSFUL;
 332         } else if (r_crack_names.out.level != 1
 333                    || !r_crack_names.out.ctr.ctr1
 334                    || r_crack_names.out.ctr.ctr1->count != 1
 335                    || !r_crack_names.out.ctr.ctr1->array[0].result_name
 336                    || r_crack_names.out.ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 337                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed\n");
 338                 talloc_free(tmp_ctx);
 339                 return NT_STATUS_UNSUCCESSFUL;
 340         }
 341
 342         /* Store the DN of our machine account. */
 343         account_dn_str = r_crack_names.out.ctr.ctr1->array[0].result_name;
 344
 345         account_dn = ldb_dn_explode(tmp_ctx, account_dn_str);
 346         if (!account_dn) {
 347                 r->out.error_string = talloc_asprintf(r, "Invalid account dn: %s",
 348                                                       account_dn_str);
 349                 talloc_free(tmp_ctx);
 350                 return NT_STATUS_UNSUCCESSFUL;
 351         }
 352
 353         /* Now we know the user's DN, open with LDAP, read and modify a few things */
 354
 355         remote_ldb_url = talloc_asprintf(tmp_ctx, "ldap://%s",
 356                                          drsuapi_binding->host);
 357         if (!remote_ldb_url) {
 358                 r->out.error_string = NULL;
 359                 talloc_free(tmp_ctx);
 360                 return NT_STATUS_NO_MEMORY;
 361         }
 362
 363         remote_ldb = ldb_wrap_connect(tmp_ctx, remote_ldb_url, 0, NULL);
 364         if (!remote_ldb) {
 365                 r->out.error_string = NULL;
 366                 talloc_free(tmp_ctx);
 367                 return NT_STATUS_UNSUCCESSFUL;
 368         }
 369
 370         /* search for the user's record */
 371         rtn = ldb_search(remote_ldb, account_dn, LDB_SCOPE_BASE,
 372                              NULL, attrs, &msgs);
 373         if (rtn != 1) {
 374                 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - %s\n",
 375                                                       account_dn_str, ldb_errstring(remote_ldb));
 376                 talloc_free(tmp_ctx);
 377                 return NT_STATUS_UNSUCCESSFUL;
 378         }
 379
 380         /* If we have a kvno recorded in AD, we need it locally as well */
 381         kvno = ldb_msg_find_uint(msgs[0], "msDS-KeyVersionNumber", 0);
 382
 383         /* Prepare a new message, for the modify */
 384         msg = ldb_msg_new(tmp_ctx);
 385         if (!msg) {
 386                 r->out.error_string = NULL;
 387                 talloc_free(tmp_ctx);
 388                 return NT_STATUS_NO_MEMORY;
 389         }
 390         msg->dn = msgs[0]->dn;
 391
 392         {
 393                 int i;
 394                 const char *service_principal_name[6];
 395                 const char *dns_host_name = strlower_talloc(tmp_ctx,
 396                                                             talloc_asprintf(tmp_ctx,
 397                                                                             "%s.%s",
 398                                                                             r->in.netbios_name,
 399                                                                             realm));
 400
 401                 if (!dns_host_name) {
 402                         r->out.error_string = NULL;
 403                         talloc_free(tmp_ctx);
 404                         return NT_STATUS_NO_MEMORY;
 405                 }
 406
 407                 service_principal_name[0] = talloc_asprintf(tmp_ctx, "host/%s", dns_host_name);
 408                 service_principal_name[1] = talloc_asprintf(tmp_ctx, "host/%s", strlower_talloc(tmp_ctx, r->in.netbios_name));
 409                 service_principal_name[2] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, realm);
 410                 service_principal_name[3] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), realm);
 411                 service_principal_name[4] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, r->out.domain_name);
 412                 service_principal_name[5] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), r->out.domain_name);
 413
 414                 for (i=0; i < ARRAY_SIZE(service_principal_name); i++) {
 415                         if (!service_principal_name[i]) {
 416                                 r->out.error_string = NULL;
 417                                 talloc_free(tmp_ctx);
 418                                 return NT_STATUS_NO_MEMORY;
 419                         }
 420                         rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "servicePrincipalName", service_principal_name[i]);
 421                         if (rtn == -1) {
 422                                 r->out.error_string = NULL;
 423                                 talloc_free(tmp_ctx);
 424                                 return NT_STATUS_NO_MEMORY;
 425                         }
 426                 }
 427
 428                 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "dNSHostName", dns_host_name);
 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         if (r->in.acct_type ==  ACB_SVRTRUST) {
 502                 status = libnet_JoinSite(ctx,
 503                                          drsuapi_pipe, drsuapi_bind_handle,
 504                                          remote_ldb, r);
 505         }
 506         talloc_free(tmp_ctx);
 507
 508         return status;
 509 }
 510
 511 /*
 512  * do a domain join using DCERPC/SAMR calls
 513  * 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation)
 514  *    is it correct to contact the the pdc of the domain of the user who's password should be set?
 515  * 2. do a samr_Connect to get a policy handle
 516  * 3. do a samr_LookupDomain to get the domain sid
 517  * 4. do a samr_OpenDomain to get a domain handle
 518  * 5. do a samr_CreateAccount to try and get a new account
 519  *
 520  * If that fails, do:
 521  * 5.1. do a samr_LookupNames to get the users rid
 522  * 5.2. do a samr_OpenUser to get a user handle
 523  *
 524  * 6. call libnet_SetPassword_samr_handle to set the password
 525  *
 526  * 7. do a samrSetUserInfo to set the account flags
 527  * 8. do some ADS specific things when we join as Domain Controller,
 528  *    look at libnet_joinADSDomain() for the details
 529  */
 530 NTSTATUS libnet_JoinDomain(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_JoinDomain *r)
 531 {
 532         TALLOC_CTX *tmp_ctx;
 533
 534         NTSTATUS status, cu_status;
 535         struct libnet_RpcConnect *c;
 536         struct lsa_ObjectAttribute attr;
 537         struct lsa_QosInfo qos;
 538         struct lsa_OpenPolicy2 lsa_open_policy;
 539         struct policy_handle lsa_p_handle;
 540         struct lsa_QueryInfoPolicy2 lsa_query_info2;
 541         struct lsa_QueryInfoPolicy lsa_query_info;
 542
 543         struct dcerpc_binding *samr_binding;
 544         struct dcerpc_pipe *samr_pipe;
 545         struct dcerpc_pipe *lsa_pipe;
 546         struct samr_Connect sc;
 547         struct policy_handle p_handle;
 548         struct samr_OpenDomain od;
 549         struct policy_handle d_handle;
 550         struct samr_LookupNames ln;
 551         struct samr_OpenUser ou;
 552         struct samr_CreateUser2 cu;
 553         struct policy_handle *u_handle = NULL;
 554         struct samr_QueryUserInfo qui;
 555         struct samr_SetUserInfo sui;
 556         union samr_UserInfo u_info;
 557         union libnet_SetPassword r2;
 558         struct samr_GetUserPwInfo pwp;
 559         struct lsa_String samr_account_name;
 560
 561         uint32_t acct_flags;
 562         uint32_t rid, access_granted;
 563         int policy_min_pw_len = 0;
 564
 565         struct dom_sid *domain_sid = NULL;
 566         struct dom_sid *account_sid = NULL;
 567         const char *domain_name = NULL;
 568         const char *password_str = NULL;
 569         const char *realm = NULL; /* Also flag for remote being AD */
 570
 571
 572         r->out.error_string = NULL;
 573         r2.samr_handle.out.error_string = NULL;
 574
 575         tmp_ctx = talloc_named(mem_ctx, 0, "libnet_Join temp context");
 576         if (!tmp_ctx) {
 577                 r->out.error_string = NULL;
 578                 return NT_STATUS_NO_MEMORY;
 579         }
 580
 581         u_handle = talloc(tmp_ctx, struct policy_handle);
 582         if (!u_handle) {
 583                 r->out.error_string = NULL;
 584                 talloc_free(tmp_ctx);
 585                 return NT_STATUS_NO_MEMORY;
 586         }
 587
 588         samr_pipe = talloc(tmp_ctx, struct dcerpc_pipe);
 589         if (!samr_pipe) {
 590                 r->out.error_string = NULL;
 591                 talloc_free(tmp_ctx);
 592                 return NT_STATUS_NO_MEMORY;
 593         }
 594
 595         c = talloc(tmp_ctx, struct libnet_RpcConnect);
 596         if (!c) {
 597                 r->out.error_string = NULL;
 598                 talloc_free(tmp_ctx);
 599                 return NT_STATUS_NO_MEMORY;
 600         }
 601
 602         /* prepare connect to the LSA pipe of PDC */
 603         if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 604                 c->level             = LIBNET_RPC_CONNECT_PDC;
 605                 c->in.domain_name    = r->in.domain_name;
 606         } else {
 607                 c->level             = LIBNET_RPC_CONNECT_BINDING;
 608                 c->in.binding        = r->in.binding;
 609         }
 610         c->in.dcerpc_iface_name      = DCERPC_LSARPC_NAME;
 611         c->in.dcerpc_iface_uuid      = DCERPC_LSARPC_UUID;
 612         c->in.dcerpc_iface_version   = DCERPC_LSARPC_VERSION;
 613
 614         /* connect to the LSA pipe of the PDC */
 615
 616         status = libnet_RpcConnect(ctx, c, c);
 617         if (!NT_STATUS_IS_OK(status)) {
 618                 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 619                         r->out.error_string = talloc_asprintf(mem_ctx,
 620                                                               "Connection to LSA pipe of PDC of domain '%s' failed: %s",
 621                                                               r->in.domain_name, nt_errstr(status));
 622                 } else {
 623                         r->out.error_string = talloc_asprintf(mem_ctx,
 624                                                               "Connection to LSA pipe with binding '%s' failed: %s",
 625                                                               r->in.binding, nt_errstr(status));
 626                 }
 627                 talloc_free(tmp_ctx);
 628                 return status;
 629         }
 630         lsa_pipe = c->out.dcerpc_pipe;
 631
 632         /* Get an LSA policy handle */
 633
 634         ZERO_STRUCT(lsa_p_handle);
 635         qos.len = 0;
 636         qos.impersonation_level = 2;
 637         qos.context_mode = 1;
 638         qos.effective_only = 0;
 639
 640         attr.len = 0;
 641         attr.root_dir = NULL;
 642         attr.object_name = NULL;
 643         attr.attributes = 0;
 644         attr.sec_desc = NULL;
 645         attr.sec_qos = &qos;
 646
 647         lsa_open_policy.in.attr = &attr;
 648
 649         lsa_open_policy.in.system_name = talloc_asprintf(tmp_ctx, "\\");
 650         if (!lsa_open_policy.in.system_name) {
 651                 r->out.error_string = NULL;
 652                 talloc_free(tmp_ctx);
 653                 return NT_STATUS_NO_MEMORY;
 654         }
 655
 656         lsa_open_policy.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 657         lsa_open_policy.out.handle = &lsa_p_handle;
 658
 659         status = dcerpc_lsa_OpenPolicy2(lsa_pipe, tmp_ctx, &lsa_open_policy);
 660
 661         /* This now fails on ncacn_ip_tcp against Win2k3 SP1 */
 662         if (NT_STATUS_IS_OK(status)) {
 663                 /* Look to see if this is ADS (a fault indicates NT4 or Samba 3.0) */
 664
 665                 lsa_query_info2.in.handle = &lsa_p_handle;
 666                 lsa_query_info2.in.level = LSA_POLICY_INFO_DNS;
 667
 668                 status = dcerpc_lsa_QueryInfoPolicy2(lsa_pipe, tmp_ctx,
 669                                                      &lsa_query_info2);
 670
 671                 if (!NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 672                         if (!NT_STATUS_IS_OK(status)) {
 673                                 r->out.error_string = talloc_asprintf(mem_ctx,
 674                                                                       "lsa_QueryInfoPolicy2 failed: %s",
 675                                                                       nt_errstr(status));
 676                                 talloc_free(tmp_ctx);
 677                                 return status;
 678                         }
 679                         realm = lsa_query_info2.out.info->dns.dns_domain.string;
 680                 }
 681
 682                 /* Grab the domain SID (regardless of the result of the previous call */
 683
 684                 lsa_query_info.in.handle = &lsa_p_handle;
 685                 lsa_query_info.in.level = LSA_POLICY_INFO_DOMAIN;
 686
 687                 status = dcerpc_lsa_QueryInfoPolicy(lsa_pipe, tmp_ctx,
 688                                                     &lsa_query_info);
 689
 690                 if (!NT_STATUS_IS_OK(status)) {
 691                         r->out.error_string = talloc_asprintf(mem_ctx,
 692                                                               "lsa_QueryInfoPolicy2 failed: %s",
 693                                                               nt_errstr(status));
 694                         talloc_free(tmp_ctx);
 695                         return status;
 696                 }
 697
 698                 domain_sid = lsa_query_info.out.info->domain.sid;
 699                 domain_name = lsa_query_info.out.info->domain.name.string;
 700         } else {
 701                 /* Cause the code further down to try this with just SAMR */
 702                 domain_sid = NULL;
 703                 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 704                         domain_name = talloc_strdup(tmp_ctx, r->in.domain_name);
 705                 } else {
 706                         /* Bugger, we just lost our way to automaticly find the domain name */
 707                         domain_name = talloc_strdup(tmp_ctx, lp_workgroup());
 708                 }
 709         }
 710
 711         DEBUG(0, ("Joining domain %s\n", domain_name));
 712
 713         /*
 714           establish a SAMR connection, on the same CIFS transport
 715         */
 716
 717         /* Find the original binding string */
 718         status = dcerpc_parse_binding(tmp_ctx, lsa_pipe->conn->binding_string, &samr_binding);
 719         if (!NT_STATUS_IS_OK(status)) {
 720                 r->out.error_string = talloc_asprintf(mem_ctx,
 721                                                 "Failed to parse lsa binding '%s'",
 722                                                 lsa_pipe->conn->binding_string);
 723                 talloc_free(tmp_ctx);
 724                 return status;
 725         }
 726
 727         /* Make binding string for samr, not the other pipe */
 728         status = dcerpc_epm_map_binding(tmp_ctx, samr_binding,
 729                                         DCERPC_SAMR_UUID, DCERPC_SAMR_VERSION,
 730                                         lsa_pipe->conn->event_ctx);
 731         if (!NT_STATUS_IS_OK(status)) {
 732                 r->out.error_string = talloc_asprintf(mem_ctx,
 733                                                 "Failed to map DCERPC/TCP NCACN_NP pipe for '%s' - %s",
 734                                                 DCERPC_NETLOGON_UUID,
 735                                                 nt_errstr(status));
 736                 talloc_free(tmp_ctx);
 737                 return status;
 738         }
 739
 740         /* Setup a SAMR connection */
 741         status = dcerpc_secondary_connection(lsa_pipe, &samr_pipe, samr_binding);
 742         if (!NT_STATUS_IS_OK(status)) {
 743                 r->out.error_string = talloc_asprintf(mem_ctx,
 744                                                 "SAMR secondary connection failed: %s",
 745                                                 nt_errstr(status));
 746                 talloc_free(tmp_ctx);
 747                 return status;
 748         }
 749
 750         status = dcerpc_pipe_auth(samr_pipe, samr_binding, DCERPC_SAMR_UUID,
 751                                   DCERPC_SAMR_VERSION, ctx->cred);
 752         if (!NT_STATUS_IS_OK(status)) {
 753                 r->out.error_string = talloc_asprintf(mem_ctx,
 754                                                 "SAMR bind failed: %s",
 755                                                 nt_errstr(status));
 756                 talloc_free(tmp_ctx);
 757                 return status;
 758         }
 759
 760         /* prepare samr_Connect */
 761         ZERO_STRUCT(p_handle);
 762         sc.in.system_name = NULL;
 763         sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 764         sc.out.connect_handle = &p_handle;
 765
 766         /* 2. do a samr_Connect to get a policy handle */
 767         status = dcerpc_samr_Connect(samr_pipe, tmp_ctx, &sc);
 768         if (!NT_STATUS_IS_OK(status)) {
 769                 r->out.error_string = talloc_asprintf(mem_ctx,
 770                                                 "samr_Connect failed: %s",
 771                                                 nt_errstr(status));
 772                 talloc_free(tmp_ctx);
 773                 return status;
 774         }
 775
 776         /* Perhaps we didn't get a SID above, because we are against ncacn_ip_tcp */
 777         if (!domain_sid) {
 778                 struct lsa_String name;
 779                 struct samr_LookupDomain l;
 780                 name.string = domain_name;
 781                 l.in.connect_handle = &p_handle;
 782                 l.in.domain_name = &name;
 783
 784                 status = dcerpc_samr_LookupDomain(samr_pipe, tmp_ctx, &l);
 785                 if (!NT_STATUS_IS_OK(status)) {
 786                         r->out.error_string = talloc_asprintf(mem_ctx,
 787                                                               "SAMR LookupDomain failed: %s",
 788                                                               nt_errstr(status));
 789                         talloc_free(tmp_ctx);
 790                         return status;
 791                 }
 792                 domain_sid = l.out.sid;
 793         }
 794
 795         /* prepare samr_OpenDomain */
 796         ZERO_STRUCT(d_handle);
 797         od.in.connect_handle = &p_handle;
 798         od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 799         od.in.sid = domain_sid;
 800         od.out.domain_handle = &d_handle;
 801
 802         /* 4. do a samr_OpenDomain to get a domain handle */
 803         status = dcerpc_samr_OpenDomain(samr_pipe, tmp_ctx, &od);
 804         if (!NT_STATUS_IS_OK(status)) {
 805                 r->out.error_string = talloc_asprintf(mem_ctx,
 806                                         "samr_OpenDomain for [%s] failed: %s",
 807                                         r->in.domain_name,
 808                                         nt_errstr(status));
 809                 talloc_free(tmp_ctx);
 810                 return status;
 811         }
 812
 813         /* prepare samr_CreateUser2 */
 814         ZERO_STRUCTP(u_handle);
 815         cu.in.domain_handle  = &d_handle;
 816         cu.in.access_mask     = SEC_FLAG_MAXIMUM_ALLOWED;
 817         samr_account_name.string = r->in.account_name;
 818         cu.in.account_name    = &samr_account_name;
 819         cu.in.acct_flags      = r->in.acct_type;
 820         cu.out.user_handle    = u_handle;
 821         cu.out.rid            = &rid;
 822         cu.out.access_granted = &access_granted;
 823
 824         /* 4. do a samr_CreateUser2 to get an account handle, or an error */
 825         cu_status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
 826         status = cu_status;
 827         if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 828                         r->out.error_string = talloc_asprintf(mem_ctx,
 829                                                                 "samr_CreateUser2 for [%s] failed: %s\n",
 830                                                                 r->in.domain_name, nt_errstr(status));
 831                         talloc_free(tmp_ctx);
 832                         return status;
 833
 834         } else if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 835                 /* prepare samr_LookupNames */
 836                 ln.in.domain_handle = &d_handle;
 837                 ln.in.num_names = 1;
 838                 ln.in.names = talloc_array(tmp_ctx, struct lsa_String, 1);
 839                 if (!ln.in.names) {
 840                         r->out.error_string = NULL;
 841                         talloc_free(tmp_ctx);
 842                         return NT_STATUS_NO_MEMORY;
 843                 }
 844                 ln.in.names[0].string = r->in.account_name;
 845
 846                 /* 5. do a samr_LookupNames to get the users rid */
 847                 status = dcerpc_samr_LookupNames(samr_pipe, tmp_ctx, &ln);
 848                 if (!NT_STATUS_IS_OK(status)) {
 849                         r->out.error_string = talloc_asprintf(mem_ctx,
 850                                                 "samr_LookupNames for [%s] failed: %s",
 851                                                 r->in.account_name,
 852                                                 nt_errstr(status));
 853                         talloc_free(tmp_ctx);
 854                         return status;
 855                 }
 856
 857                 /* check if we got one RID for the user */
 858                 if (ln.out.rids.count != 1) {
 859                         r->out.error_string = talloc_asprintf(mem_ctx,
 860                                                               "samr_LookupNames for [%s] returns %d RIDs\n",
 861                                                               r->in.account_name, ln.out.rids.count);
 862                         talloc_free(tmp_ctx);
 863                         return NT_STATUS_INVALID_PARAMETER;
 864                 }
 865
 866                 /* prepare samr_OpenUser */
 867                 ZERO_STRUCTP(u_handle);
 868                 ou.in.domain_handle = &d_handle;
 869                 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 870                 ou.in.rid = ln.out.rids.ids[0];
 871                 rid = ou.in.rid;
 872                 ou.out.user_handle = u_handle;
 873
 874                 /* 6. do a samr_OpenUser to get a user handle */
 875                 status = dcerpc_samr_OpenUser(samr_pipe, tmp_ctx, &ou);
 876                 if (!NT_STATUS_IS_OK(status)) {
 877                         r->out.error_string = talloc_asprintf(mem_ctx,
 878                                                         "samr_OpenUser for [%s] failed: %s",
 879                                                         r->in.account_name,
 880                                                         nt_errstr(status));
 881                         talloc_free(tmp_ctx);
 882                         return status;
 883                 }
 884         }
 885         /* Find out what password policy this user has */
 886         pwp.in.user_handle = u_handle;
 887
 888         status = dcerpc_samr_GetUserPwInfo(samr_pipe, tmp_ctx, &pwp);
 889         if (NT_STATUS_IS_OK(status)) {
 890                 policy_min_pw_len = pwp.out.info.min_password_length;
 891         }
 892
 893         /* Grab a password of that minimum length */
 894
 895         password_str = generate_random_str(tmp_ctx, MAX(8, policy_min_pw_len));
 896
 897         r2.samr_handle.level            = LIBNET_SET_PASSWORD_SAMR_HANDLE;
 898         r2.samr_handle.in.account_name  = r->in.account_name;
 899         r2.samr_handle.in.newpassword   = password_str;
 900         r2.samr_handle.in.user_handle   = u_handle;
 901         r2.samr_handle.in.dcerpc_pipe   = samr_pipe;
 902
 903         status = libnet_SetPassword(ctx, tmp_ctx, &r2);
 904         if (!NT_STATUS_IS_OK(status)) {
 905                 r->out.error_string = talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 906                 talloc_free(tmp_ctx);
 907                 return status;
 908         }
 909
 910         /* prepare samr_QueryUserInfo (get flags) */
 911         qui.in.user_handle = u_handle;
 912         qui.in.level = 16;
 913
 914         status = dcerpc_samr_QueryUserInfo(samr_pipe, tmp_ctx, &qui);
 915         if (!NT_STATUS_IS_OK(status)) {
 916                 r->out.error_string = talloc_asprintf(mem_ctx,
 917                                                 "samr_QueryUserInfo for [%s] failed: %s",
 918                                                 r->in.account_name,
 919                                                 nt_errstr(status));
 920                 talloc_free(tmp_ctx);
 921                 return status;
 922         }
 923
 924         if (!qui.out.info) {
 925                 status = NT_STATUS_INVALID_PARAMETER;
 926                 r->out.error_string
 927                         = talloc_asprintf(mem_ctx,
 928                                           "samr_QueryUserInfo failed to return qui.out.info for [%s]: %s\n",
 929                                           r->in.account_name, nt_errstr(status));
 930                 talloc_free(tmp_ctx);
 931                 return status;
 932         }
 933
 934         /* Possibly change account type (if we are creating a new account) */
 935         if (((qui.out.info->info16.acct_flags & (ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST))
 936             != r->in.acct_type) && (!NT_STATUS_EQUAL(cu_status, NT_STATUS_USER_EXISTS))) {
 937                 acct_flags = (qui.out.info->info16.acct_flags & ~(ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST))
 938                               | r->in.acct_type;
 939         } else {
 940                 acct_flags = qui.out.info->info16.acct_flags;
 941         }
 942
 943         acct_flags = (acct_flags & ~ACB_DISABLED);
 944
 945         /* reset flags (if required) */
 946         if (acct_flags != qui.out.info->info16.acct_flags) {
 947                 ZERO_STRUCT(u_info);
 948                 u_info.info16.acct_flags = acct_flags;
 949
 950                 sui.in.user_handle = u_handle;
 951                 sui.in.info = &u_info;
 952                 sui.in.level = 16;
 953
 954                 dcerpc_samr_SetUserInfo(samr_pipe, tmp_ctx, &sui);
 955                 if (!NT_STATUS_IS_OK(status)) {
 956                         r->out.error_string = talloc_asprintf(mem_ctx,
 957                                                         "samr_SetUserInfo for [%s] failed to remove ACB_DISABLED flag: %s",
 958                                                         r->in.account_name,
 959                                                         nt_errstr(status));
 960                         talloc_free(tmp_ctx);
 961                         return status;
 962                 }
 963         }
 964
 965         account_sid = dom_sid_add_rid(mem_ctx, domain_sid, rid);
 966         if (!account_sid) {
 967                 r->out.error_string = NULL;
 968                 talloc_free(tmp_ctx);
 969                 return NT_STATUS_NO_MEMORY;
 970         }
 971
 972         r->out.join_password = password_str;
 973         talloc_steal(mem_ctx, password_str);
 974
 975         r->out.domain_sid = domain_sid;
 976         talloc_steal(mem_ctx, domain_sid);
 977
 978         r->out.account_sid = account_sid;
 979         talloc_steal(mem_ctx, account_sid);
 980
 981         r->out.domain_name = domain_name;
 982         talloc_steal(mem_ctx, domain_name);
 983         r->out.realm = realm;
 984         talloc_steal(mem_ctx, realm);
 985         r->out.lsa_pipe = lsa_pipe;
 986         talloc_steal(mem_ctx, lsa_pipe);
 987         r->out.samr_pipe = samr_pipe;
 988         talloc_steal(mem_ctx, samr_pipe);
 989         r->out.samr_binding = samr_binding;
 990         talloc_steal(mem_ctx, samr_binding);
 991         r->out.user_handle = u_handle;
 992         talloc_steal(mem_ctx, u_handle);
 993         r->out.error_string = r2.samr_handle.out.error_string;
 994         talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 995         r->out.kvno = 0;
 996         r->out.server_dn_str = NULL;
 997         talloc_free(tmp_ctx);
 998
 999         /* Now, if it was AD, then we want to start looking changing a
1000          * few more things.  Otherwise, we are done. */
1001         if (realm) {
1002                 status = libnet_JoinADSDomain(ctx, r);
1003                 return status;
1004         }
1005
1006         return status;
1007 }
1008
1009 static NTSTATUS libnet_Join_primary_domain(struct libnet_context *ctx,
1010                                            TALLOC_CTX *mem_ctx,
1011                                            struct libnet_Join *r)
1012 {
1013         NTSTATUS status;
1014         TALLOC_CTX *tmp_mem;
1015         struct libnet_JoinDomain *r2;
1016         int ret, rtn;
1017         struct ldb_context *ldb;
1018         const struct ldb_dn *base_dn;
1019         struct ldb_message **msgs, *msg;
1020         const char *sct;
1021         const char * const attrs[] = {
1022                 "whenChanged",
1023                 "secret",
1024                 "priorSecret",
1025                 "priorChanged",
1026                 NULL
1027         };
1028         uint32_t acct_type = 0;
1029         const char *account_name;
1030         const char *netbios_name;
1031
1032         r->out.error_string = NULL;
1033
1034         tmp_mem = talloc_new(mem_ctx);
1035         if (!tmp_mem) {
1036                 return NT_STATUS_NO_MEMORY;
1037         }
1038
1039         r2 = talloc(tmp_mem, struct libnet_JoinDomain);
1040         if (!r2) {
1041                 r->out.error_string = NULL;
1042                 talloc_free(tmp_mem);
1043                 return NT_STATUS_NO_MEMORY;
1044         }
1045
1046         if (r->in.secure_channel_type == SEC_CHAN_BDC) {
1047                 acct_type = ACB_SVRTRUST;
1048         } else if (r->in.secure_channel_type == SEC_CHAN_WKSTA) {
1049                 acct_type = ACB_WSTRUST;
1050         } else {
1051                 r->out.error_string = NULL;
1052                 talloc_free(tmp_mem);
1053                 return NT_STATUS_INVALID_PARAMETER;
1054         }
1055
1056         if ((r->in.netbios_name != NULL) && (r->in.level != LIBNET_JOIN_AUTOMATIC)) {
1057                 netbios_name = r->in.netbios_name;
1058         } else {
1059                 netbios_name = talloc_asprintf(tmp_mem, "%s", lp_netbios_name());
1060                 if (!netbios_name) {
1061                         r->out.error_string = NULL;
1062                         talloc_free(tmp_mem);
1063                         return NT_STATUS_NO_MEMORY;
1064                 }
1065         }
1066
1067         account_name = talloc_asprintf(tmp_mem, "%s$", netbios_name);
1068         if (!account_name) {
1069                 r->out.error_string = NULL;
1070                 talloc_free(tmp_mem);
1071                 return NT_STATUS_NO_MEMORY;
1072         }
1073
1074         /*
1075          * Local secrets are stored in secrets.ldb
1076          * open it to make sure we can write the info into it after the join
1077          */
1078         ldb = secrets_db_connect(tmp_mem);
1079         if (!ldb) {
1080                 r->out.error_string
1081                         = talloc_asprintf(mem_ctx,
1082                                           "Could not open secrets database\n");
1083                 talloc_free(tmp_mem);
1084                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
1085         }
1086
1087         /*
1088          * join the domain
1089          */
1090         ZERO_STRUCTP(r2);
1091         r2->in.domain_name      = r->in.domain_name;
1092         r2->in.account_name     = account_name;
1093         r2->in.netbios_name     = netbios_name;
1094         r2->in.level            = LIBNET_JOINDOMAIN_AUTOMATIC;
1095         r2->in.acct_type        = acct_type;
1096         status = libnet_JoinDomain(ctx, r2, r2);
1097         if (!NT_STATUS_IS_OK(status)) {
1098                 r->out.error_string = talloc_steal(mem_ctx, r2->out.error_string);
1099                 talloc_free(tmp_mem);
1100                 return status;
1101         }
1102
1103         /*
1104          * now prepare the record for secrets.ldb
1105          */
1106         sct = talloc_asprintf(tmp_mem, "%d", r->in.secure_channel_type);
1107         if (!sct) {
1108                 r->out.error_string = NULL;
1109                 talloc_free(tmp_mem);
1110                 return NT_STATUS_NO_MEMORY;
1111         }
1112
1113         msg = ldb_msg_new(tmp_mem);
1114         if (!msg) {
1115                 r->out.error_string = NULL;
1116                 talloc_free(tmp_mem);
1117                 return NT_STATUS_NO_MEMORY;
1118         }
1119
1120         base_dn = ldb_dn_explode(tmp_mem, "cn=Primary Domains");
1121         if (!base_dn) {
1122                 r->out.error_string = NULL;
1123                 talloc_free(tmp_mem);
1124                 return NT_STATUS_NO_MEMORY;
1125         }
1126
1127         msg->dn = ldb_dn_build_child(tmp_mem, "flatname", r2->out.domain_name, base_dn);
1128         if (!msg->dn) {
1129                 r->out.error_string = NULL;
1130                 talloc_free(tmp_mem);
1131                 return NT_STATUS_NO_MEMORY;
1132         }
1133
1134         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "flatname", r2->out.domain_name);
1135         if (rtn == -1) {
1136                 r->out.error_string = NULL;
1137                 talloc_free(tmp_mem);
1138                 return NT_STATUS_NO_MEMORY;
1139         }
1140
1141         if (r2->out.realm) {
1142                 rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "realm", r2->out.realm);
1143                 if (rtn == -1) {
1144                         r->out.error_string = NULL;
1145                         talloc_free(tmp_mem);
1146                         return NT_STATUS_NO_MEMORY;
1147                 }
1148         }
1149
1150         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "objectClass", "primaryDomain");
1151         if (rtn == -1) {
1152                 r->out.error_string = NULL;
1153                 talloc_free(tmp_mem);
1154                 return NT_STATUS_NO_MEMORY;
1155         }
1156
1157         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
1158         if (rtn == -1) {
1159                 r->out.error_string = NULL;
1160                 talloc_free(tmp_mem);
1161                 return NT_STATUS_NO_MEMORY;
1162         }
1163
1164         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1165         if (rtn == -1) {
1166                 r->out.error_string = NULL;
1167                 talloc_free(tmp_mem);
1168                 return NT_STATUS_NO_MEMORY;
1169         }
1170
1171         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1172         if (rtn == -1) {
1173                 r->out.error_string = NULL;
1174                 talloc_free(tmp_mem);
1175                 return NT_STATUS_NO_MEMORY;
1176         }
1177
1178         if (r2->out.kvno) {
1179                 rtn = samdb_msg_add_uint(ldb, tmp_mem, msg, "msDS-KeyVersionNumber",
1180                                          r2->out.kvno);
1181                 if (rtn == -1) {
1182                         r->out.error_string = NULL;
1183                         talloc_free(tmp_mem);
1184                         return NT_STATUS_NO_MEMORY;
1185                 }
1186         }
1187
1188         if (r2->out.domain_sid) {
1189                 rtn = samdb_msg_add_dom_sid(ldb, tmp_mem, msg, "objectSid",
1190                                             r2->out.domain_sid);
1191                 if (rtn == -1) {
1192                         r->out.error_string = NULL;
1193                         talloc_free(tmp_mem);
1194                         return NT_STATUS_NO_MEMORY;
1195                 }
1196         }
1197
1198         /*
1199          * search for the secret record
1200          * - remove the records we find
1201          * - and fetch the old secret and store it under priorSecret
1202          */
1203         ret = gendb_search(ldb,
1204                            tmp_mem, base_dn,
1205                            &msgs, attrs,
1206                            "(|" SECRETS_PRIMARY_DOMAIN_FILTER "(realm=%s))",
1207                            r2->out.domain_name, r2->out.realm);
1208         if (ret == 0) {
1209         } else if (ret == -1) {
1210                 r->out.error_string
1211                         = talloc_asprintf(mem_ctx,
1212                                           "Search for domain: %s and realm: %s failed: %s",
1213                                           r2->out.domain_name, r2->out.realm, ldb_errstring(ldb));
1214                 talloc_free(tmp_mem);
1215                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1216         } else {
1217                 const struct ldb_val *prior_secret;
1218                 const struct ldb_val *prior_modified_time;
1219                 int i;
1220
1221                 for (i = 0; i < ret; i++) {
1222                         ldb_delete(ldb, msgs[i]->dn);
1223                 }
1224
1225                 prior_secret = ldb_msg_find_ldb_val(msgs[0], "secret");
1226                 if (prior_secret) {
1227                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorSecret", prior_secret);
1228                         if (rtn == -1) {
1229                                 r->out.error_string = NULL;
1230                                 talloc_free(tmp_mem);
1231                                 return NT_STATUS_NO_MEMORY;
1232                         }
1233                 }
1234                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
1235                 if (rtn == -1) {
1236                         r->out.error_string = NULL;
1237                         talloc_free(tmp_mem);
1238                         return NT_STATUS_NO_MEMORY;
1239                 }
1240
1241                 prior_modified_time = ldb_msg_find_ldb_val(msgs[0],
1242                                                            "whenChanged");
1243                 if (prior_modified_time) {
1244                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorWhenChanged",
1245                                                   prior_modified_time);
1246                         if (rtn == -1) {
1247                                 r->out.error_string = NULL;
1248                                 talloc_free(tmp_mem);
1249                                 return NT_STATUS_NO_MEMORY;
1250                         }
1251                 }
1252
1253                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1254                 if (rtn == -1) {
1255                         r->out.error_string = NULL;
1256                         talloc_free(tmp_mem);
1257                         return NT_STATUS_NO_MEMORY;
1258                 }
1259
1260                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1261                 if (rtn == -1) {
1262                         r->out.error_string = NULL;
1263                         talloc_free(tmp_mem);
1264                         return NT_STATUS_NO_MEMORY;
1265                 }
1266         }
1267
1268         /* create the secret */
1269         ret = samdb_add(ldb, tmp_mem, msg);
1270         if (ret != 0) {
1271                 r->out.error_string = talloc_asprintf(mem_ctx, "Failed to create secret record %s\n",
1272                                                       ldb_dn_linearize(ldb, msg->dn));
1273                 talloc_free(tmp_mem);
1274                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1275         }
1276
1277         /* move all out parameter to the callers TALLOC_CTX */
1278         r->out.error_string     = NULL;
1279         r->out.join_password    = r2->out.join_password;
1280         talloc_steal(mem_ctx, r2->out.join_password);
1281         r->out.domain_sid       = r2->out.domain_sid;
1282         talloc_steal(mem_ctx, r2->out.domain_sid);
1283         talloc_free(tmp_mem);
1284         return NT_STATUS_OK;
1285 }
1286
1287 NTSTATUS libnet_Join(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_Join *r)
1288 {
1289         switch (r->in.secure_channel_type) {
1290                 case SEC_CHAN_WKSTA:
1291                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1292                 case SEC_CHAN_BDC:
1293                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1294                 case SEC_CHAN_DOMAIN:
1295                         break;
1296         }
1297
1298         r->out.error_string = talloc_asprintf(mem_ctx,
1299                                 "Invalid secure channel type specified (%08X) attempting to join domain %s",
1300                                 r->in.secure_channel_type, r->in.domain_name);
1301         return NT_STATUS_INVALID_PARAMETER;
1302 }
1303
1304