source4/libnet/libnet_join.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Stefan Metzmacher      2004
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
   6    Copyright (C) Brad Henry 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "libnet/libnet.h"
  25 #include "librpc/gen_ndr/ndr_drsuapi_c.h"
  26 #include "lib/ldb/include/ldb.h"
  27 #include "lib/ldb/include/ldb_errors.h"
  28 #include "param/secrets.h"
  29 #include "dsdb/samdb/samdb.h"
  30 #include "db_wrap.h"
  31 #include "libcli/security/security.h"
  32 #include "auth/credentials/credentials.h"
  33 #include "auth/credentials/credentials_krb5.h"
  34 #include "librpc/gen_ndr/ndr_samr_c.h"
  35
  36 /*
  37  * complete a domain join, when joining to a AD domain:
  38  * 1.) connect and bind to the DRSUAPI pipe
  39  * 2.) do a DsCrackNames() to find the machine account dn
  40  * 3.) connect to LDAP
  41  * 4.) do an ldap search to find the "msDS-KeyVersionNumber" of the machine account
  42  * 5.) set the servicePrincipalName's of the machine account via LDAP, (maybe we should use DsWriteAccountSpn()...)
  43  * 6.) do a DsCrackNames() to find the domain dn
  44  * 7.) find out Site specific stuff, look at libnet_JoinSite() for details
  45  */
  46 static NTSTATUS libnet_JoinADSDomain(struct libnet_context *ctx, struct libnet_JoinDomain *r)
  47 {
  48         NTSTATUS status;
  49
  50         TALLOC_CTX *tmp_ctx;
  51
  52         const char *realm = r->out.realm;
  53
  54         struct dcerpc_binding *samr_binding = r->out.samr_binding;
  55
  56         struct dcerpc_pipe *drsuapi_pipe;
  57         struct dcerpc_binding *drsuapi_binding;
  58         struct drsuapi_DsBind r_drsuapi_bind;
  59         struct drsuapi_DsCrackNames r_crack_names;
  60         struct drsuapi_DsNameString names[1];
  61         struct policy_handle drsuapi_bind_handle;
  62         struct GUID drsuapi_bind_guid;
  63
  64         struct ldb_context *remote_ldb;
  65         struct ldb_dn *account_dn;
  66         const char *account_dn_str;
  67         const char *remote_ldb_url;
  68         struct ldb_result *res;
  69         struct ldb_message *msg;
  70
  71         int ret, rtn;
  72
  73         unsigned int kvno;
  74
  75         const char * const attrs[] = {
  76                 "msDS-KeyVersionNumber",
  77                 "servicePrincipalName",
  78                 "dNSHostName",
  79                 NULL,
  80         };
  81
  82         r->out.error_string = NULL;
  83
  84         /* We need to convert between a samAccountName and domain to a
  85          * DN in the directory.  The correct way to do this is with
  86          * DRSUAPI CrackNames */
  87
  88         /* Fiddle with the bindings, so get to DRSUAPI on
  89          * NCACN_IP_TCP, sealed */
  90         tmp_ctx = talloc_named(r, 0, "libnet_JoinADSDomain temp context");
  91         if (!tmp_ctx) {
  92                 r->out.error_string = NULL;
  93                 return NT_STATUS_NO_MEMORY;
  94         }
  95
  96         drsuapi_binding = talloc(tmp_ctx, struct dcerpc_binding);
  97         if (!drsuapi_binding) {
  98                 r->out.error_string = NULL;
  99                 talloc_free(tmp_ctx);
 100                 return NT_STATUS_NO_MEMORY;
 101         }
 102
 103         *drsuapi_binding = *samr_binding;
 104
 105         /* DRSUAPI is only available on IP_TCP, and locally on NCALRPC */
 106         if (drsuapi_binding->transport != NCALRPC) {
 107                 drsuapi_binding->transport = NCACN_IP_TCP;
 108         }
 109         drsuapi_binding->endpoint = NULL;
 110         drsuapi_binding->flags |= DCERPC_SEAL;
 111
 112         status = dcerpc_pipe_connect_b(tmp_ctx,
 113                                        &drsuapi_pipe,
 114                                        drsuapi_binding,
 115                                        &dcerpc_table_drsuapi,
 116                                        ctx->cred,
 117                                        ctx->event_ctx);
 118         if (!NT_STATUS_IS_OK(status)) {
 119                 r->out.error_string = talloc_asprintf(r,
 120                                         "Connection to DRSUAPI pipe of PDC of domain '%s' failed: %s",
 121                                         r->in.domain_name,
 122                                         nt_errstr(status));
 123                 talloc_free(tmp_ctx);
 124                 return status;
 125         }
 126
 127         /* get a DRSUAPI pipe handle */
 128         GUID_from_string(DRSUAPI_DS_BIND_GUID, &drsuapi_bind_guid);
 129
 130         r_drsuapi_bind.in.bind_guid = &drsuapi_bind_guid;
 131         r_drsuapi_bind.in.bind_info = NULL;
 132         r_drsuapi_bind.out.bind_handle = &drsuapi_bind_handle;
 133
 134         status = dcerpc_drsuapi_DsBind(drsuapi_pipe, tmp_ctx, &r_drsuapi_bind);
 135         if (!NT_STATUS_IS_OK(status)) {
 136                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 137                         r->out.error_string
 138                                 = talloc_asprintf(r,
 139                                                   "dcerpc_drsuapi_DsBind failed - %s",
 140                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 141                         talloc_free(tmp_ctx);
 142                         return status;
 143                 } else {
 144                         r->out.error_string
 145                                 = talloc_asprintf(r,
 146                                                   "dcerpc_drsuapi_DsBind failed - %s",
 147                                                   nt_errstr(status));
 148                         talloc_free(tmp_ctx);
 149                         return status;
 150                 }
 151         } else if (!W_ERROR_IS_OK(r_drsuapi_bind.out.result)) {
 152                 r->out.error_string
 153                                 = talloc_asprintf(r,
 154                                                   "DsBind failed - %s",
 155                                                   win_errstr(r_drsuapi_bind.out.result));
 156                         talloc_free(tmp_ctx);
 157                 return NT_STATUS_UNSUCCESSFUL;
 158         }
 159
 160         /* Actually 'crack' the names */
 161         ZERO_STRUCT(r_crack_names);
 162         r_crack_names.in.bind_handle            = &drsuapi_bind_handle;
 163         r_crack_names.in.level                  = 1;
 164         r_crack_names.in.req.req1.unknown1      = 0x000004e4;
 165         r_crack_names.in.req.req1.unknown2      = 0x00000407;
 166         r_crack_names.in.req.req1.count         = 1;
 167         r_crack_names.in.req.req1.names         = names;
 168         r_crack_names.in.req.req1.format_flags  = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
 169         r_crack_names.in.req.req1.format_offered= DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY;
 170         r_crack_names.in.req.req1.format_desired= DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 171         names[0].str = dom_sid_string(tmp_ctx, r->out.account_sid);
 172         if (!names[0].str) {
 173                 r->out.error_string = NULL;
 174                 talloc_free(tmp_ctx);
 175                 return NT_STATUS_NO_MEMORY;
 176         }
 177
 178         status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
 179         if (!NT_STATUS_IS_OK(status)) {
 180                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 181                         r->out.error_string
 182                                 = talloc_asprintf(r,
 183                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
 184                                                   names[0].str,
 185                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 186                         talloc_free(tmp_ctx);
 187                         return status;
 188                 } else {
 189                         r->out.error_string
 190                                 = talloc_asprintf(r,
 191                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
 192                                                   names[0].str,
 193                                                   nt_errstr(status));
 194                         talloc_free(tmp_ctx);
 195                         return status;
 196                 }
 197         } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
 198                 r->out.error_string
 199                                 = talloc_asprintf(r,
 200                                                   "DsCrackNames failed - %s", win_errstr(r_crack_names.out.result));
 201                 talloc_free(tmp_ctx);
 202                 return NT_STATUS_UNSUCCESSFUL;
 203         } else if (r_crack_names.out.level != 1
 204                    || !r_crack_names.out.ctr.ctr1
 205                    || r_crack_names.out.ctr.ctr1->count != 1) {
 206                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed");
 207                 talloc_free(tmp_ctx);
 208                 return NT_STATUS_INVALID_PARAMETER;
 209         } else if (r_crack_names.out.ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 210                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed: %d", r_crack_names.out.ctr.ctr1->array[0].status);
 211                 talloc_free(tmp_ctx);
 212                 return NT_STATUS_UNSUCCESSFUL;
 213         } else if (r_crack_names.out.ctr.ctr1->array[0].result_name == NULL) {
 214                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed: no result name");
 215                 talloc_free(tmp_ctx);
 216                 return NT_STATUS_INVALID_PARAMETER;
 217         }
 218
 219         /* Store the DN of our machine account. */
 220         account_dn_str = r_crack_names.out.ctr.ctr1->array[0].result_name;
 221
 222         account_dn = ldb_dn_new(tmp_ctx, remote_ldb, account_dn_str);
 223         if (! ldb_dn_validate(account_dn)) {
 224                 r->out.error_string = talloc_asprintf(r, "Invalid account dn: %s",
 225                                                       account_dn_str);
 226                 talloc_free(tmp_ctx);
 227                 return NT_STATUS_UNSUCCESSFUL;
 228         }
 229
 230         /* Now we know the user's DN, open with LDAP, read and modify a few things */
 231
 232         remote_ldb_url = talloc_asprintf(tmp_ctx, "ldap://%s",
 233                                          drsuapi_binding->target_hostname);
 234         if (!remote_ldb_url) {
 235                 r->out.error_string = NULL;
 236                 talloc_free(tmp_ctx);
 237                 return NT_STATUS_NO_MEMORY;
 238         }
 239
 240         remote_ldb = ldb_wrap_connect(tmp_ctx, remote_ldb_url,
 241                                       NULL, ctx->cred, 0, NULL);
 242         if (!remote_ldb) {
 243                 r->out.error_string = NULL;
 244                 talloc_free(tmp_ctx);
 245                 return NT_STATUS_UNSUCCESSFUL;
 246         }
 247
 248         /* search for the user's record */
 249         ret = ldb_search(remote_ldb, account_dn, LDB_SCOPE_BASE,
 250                          NULL, attrs, &res);
 251         if (ret != LDB_SUCCESS) {
 252                 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - %s",
 253                                                       account_dn_str, ldb_errstring(remote_ldb));
 254                 talloc_free(tmp_ctx);
 255                 return NT_STATUS_UNSUCCESSFUL;
 256         }
 257
 258         talloc_steal(tmp_ctx, res);
 259
 260         if (res->count != 1) {
 261                 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - found %d entries",
 262                                                       account_dn_str, res->count);
 263                 talloc_free(tmp_ctx);
 264                 return NT_STATUS_UNSUCCESSFUL;
 265         }
 266
 267         /* If we have a kvno recorded in AD, we need it locally as well */
 268         kvno = ldb_msg_find_attr_as_uint(res->msgs[0], "msDS-KeyVersionNumber", 0);
 269
 270         /* Prepare a new message, for the modify */
 271         msg = ldb_msg_new(tmp_ctx);
 272         if (!msg) {
 273                 r->out.error_string = NULL;
 274                 talloc_free(tmp_ctx);
 275                 return NT_STATUS_NO_MEMORY;
 276         }
 277         msg->dn = res->msgs[0]->dn;
 278
 279         {
 280                 int i;
 281                 const char *service_principal_name[6];
 282                 const char *dns_host_name = strlower_talloc(tmp_ctx,
 283                                                             talloc_asprintf(tmp_ctx,
 284                                                                             "%s.%s",
 285                                                                             r->in.netbios_name,
 286                                                                             realm));
 287
 288                 if (!dns_host_name) {
 289                         r->out.error_string = NULL;
 290                         talloc_free(tmp_ctx);
 291                         return NT_STATUS_NO_MEMORY;
 292                 }
 293
 294                 service_principal_name[0] = talloc_asprintf(tmp_ctx, "host/%s", dns_host_name);
 295                 service_principal_name[1] = talloc_asprintf(tmp_ctx, "host/%s", strlower_talloc(tmp_ctx, r->in.netbios_name));
 296                 service_principal_name[2] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, realm);
 297                 service_principal_name[3] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), realm);
 298                 service_principal_name[4] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, r->out.domain_name);
 299                 service_principal_name[5] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), r->out.domain_name);
 300
 301                 for (i=0; i < ARRAY_SIZE(service_principal_name); i++) {
 302                         if (!service_principal_name[i]) {
 303                                 r->out.error_string = NULL;
 304                                 talloc_free(tmp_ctx);
 305                                 return NT_STATUS_NO_MEMORY;
 306                         }
 307                         rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "servicePrincipalName", service_principal_name[i]);
 308                         if (rtn == -1) {
 309                                 r->out.error_string = NULL;
 310                                 talloc_free(tmp_ctx);
 311                                 return NT_STATUS_NO_MEMORY;
 312                         }
 313                 }
 314
 315                 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "dNSHostName", dns_host_name);
 316                 if (rtn == -1) {
 317                         r->out.error_string = NULL;
 318                         talloc_free(tmp_ctx);
 319                         return NT_STATUS_NO_MEMORY;
 320                 }
 321
 322                 rtn = samdb_replace(remote_ldb, tmp_ctx, msg);
 323                 if (rtn != 0) {
 324                         r->out.error_string
 325                                 = talloc_asprintf(r,
 326                                                   "Failed to replace entries on %s",
 327                                                   ldb_dn_get_linearized(msg->dn));
 328                         talloc_free(tmp_ctx);
 329                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 330                 }
 331         }
 332
 333         /* DsCrackNames to find out the DN of the domain. */
 334         r_crack_names.in.req.req1.format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
 335         r_crack_names.in.req.req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
 336         names[0].str = talloc_asprintf(tmp_ctx, "%s\\", r->out.domain_name);
 337         if (!names[0].str) {
 338                 r->out.error_string = NULL;
 339                 talloc_free(tmp_ctx);
 340                 return NT_STATUS_NO_MEMORY;
 341         }
 342
 343         status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
 344         if (!NT_STATUS_IS_OK(status)) {
 345                 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 346                         r->out.error_string
 347                                 = talloc_asprintf(r,
 348                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
 349                                                   r->in.domain_name,
 350                                                   dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
 351                         talloc_free(tmp_ctx);
 352                         return status;
 353                 } else {
 354                         r->out.error_string
 355                                 = talloc_asprintf(r,
 356                                                   "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
 357                                                   r->in.domain_name,
 358                                                   nt_errstr(status));
 359                         talloc_free(tmp_ctx);
 360                         return status;
 361                 }
 362         } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
 363                 r->out.error_string
 364                         = talloc_asprintf(r,
 365                                           "DsCrackNames failed - %s", win_errstr(r_crack_names.out.result));
 366                 talloc_free(tmp_ctx);
 367                 return NT_STATUS_UNSUCCESSFUL;
 368         } else if (r_crack_names.out.level != 1
 369                    || !r_crack_names.out.ctr.ctr1
 370                    || r_crack_names.out.ctr.ctr1->count != 1
 371                    || !r_crack_names.out.ctr.ctr1->array[0].result_name
 372                    || r_crack_names.out.ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
 373                 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed");
 374                 talloc_free(tmp_ctx);
 375                 return NT_STATUS_UNSUCCESSFUL;
 376         }
 377
 378         /* Store the account DN. */
 379         r->out.account_dn_str = account_dn_str;
 380         talloc_steal(r, account_dn_str);
 381
 382         /* Store the domain DN. */
 383         r->out.domain_dn_str = r_crack_names.out.ctr.ctr1->array[0].result_name;
 384         talloc_steal(r, r_crack_names.out.ctr.ctr1->array[0].result_name);
 385
 386         r->out.kvno = kvno;
 387
 388         if (r->in.acct_type == ACB_SVRTRUST) {
 389                 status = libnet_JoinSite(remote_ldb, r);
 390         }
 391         talloc_free(tmp_ctx);
 392
 393         return status;
 394 }
 395
 396 /*
 397  * do a domain join using DCERPC/SAMR calls
 398  * - connect to the LSA pipe, to try and find out information about the domain
 399  * - create a secondary connection to SAMR pipe
 400  * - do a samr_Connect to get a policy handle
 401  * - do a samr_LookupDomain to get the domain sid
 402  * - do a samr_OpenDomain to get a domain handle
 403  * - do a samr_CreateAccount to try and get a new account
 404  *
 405  * If that fails, do:
 406  * - do a samr_LookupNames to get the users rid
 407  * - do a samr_OpenUser to get a user handle
 408  * - potentially delete and recreate the user
 409  * - assert the account is of the right type with samrQueryUserInfo
 410  *
 411  * - call libnet_SetPassword_samr_handle to set the password,
 412  *   and pass a samr_UserInfo21 struct to set full_name and the account flags
 413  *
 414  * - do some ADS specific things when we join as Domain Controller,
 415  *    look at libnet_joinADSDomain() for the details
 416  */
 417 NTSTATUS libnet_JoinDomain(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_JoinDomain *r)
 418 {
 419         TALLOC_CTX *tmp_ctx;
 420
 421         NTSTATUS status, cu_status;
 422
 423         struct libnet_RpcConnect *connect_with_info;
 424         struct dcerpc_pipe *samr_pipe;
 425
 426         struct samr_Connect sc;
 427         struct policy_handle p_handle;
 428         struct samr_OpenDomain od;
 429         struct policy_handle d_handle;
 430         struct samr_LookupNames ln;
 431         struct samr_OpenUser ou;
 432         struct samr_CreateUser2 cu;
 433         struct policy_handle *u_handle = NULL;
 434         struct samr_QueryUserInfo qui;
 435         struct samr_UserInfo21 u_info21;
 436         union libnet_SetPassword r2;
 437         struct samr_GetUserPwInfo pwp;
 438         struct lsa_String samr_account_name;
 439
 440         uint32_t acct_flags, old_acct_flags;
 441         uint32_t rid, access_granted;
 442         int policy_min_pw_len = 0;
 443
 444         struct dom_sid *account_sid = NULL;
 445         const char *password_str = NULL;
 446
 447         r->out.error_string = NULL;
 448         r2.samr_handle.out.error_string = NULL;
 449
 450         tmp_ctx = talloc_named(mem_ctx, 0, "libnet_Join temp context");
 451         if (!tmp_ctx) {
 452                 r->out.error_string = NULL;
 453                 return NT_STATUS_NO_MEMORY;
 454         }
 455
 456         u_handle = talloc(tmp_ctx, struct policy_handle);
 457         if (!u_handle) {
 458                 r->out.error_string = NULL;
 459                 talloc_free(tmp_ctx);
 460                 return NT_STATUS_NO_MEMORY;
 461         }
 462
 463         connect_with_info = talloc(tmp_ctx, struct libnet_RpcConnect);
 464         if (!connect_with_info) {
 465                 r->out.error_string = NULL;
 466                 talloc_free(tmp_ctx);
 467                 return NT_STATUS_NO_MEMORY;
 468         }
 469
 470         /* prepare connect to the SAMR pipe of PDC */
 471         if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 472                 connect_with_info->in.binding = NULL;
 473                 connect_with_info->in.name    = r->in.domain_name;
 474         } else {
 475                 connect_with_info->in.binding = r->in.binding;
 476                 connect_with_info->in.name    = NULL;
 477         }
 478
 479         /* This level makes a connection to the LSA pipe on the way,
 480          * to get some useful bits of information about the domain */
 481         connect_with_info->level              = LIBNET_RPC_CONNECT_DC_INFO;
 482         connect_with_info->in.dcerpc_iface    = &dcerpc_table_samr;
 483
 484         /*
 485           establish the SAMR connection
 486         */
 487         status = libnet_RpcConnect(ctx, tmp_ctx, connect_with_info);
 488         if (!NT_STATUS_IS_OK(status)) {
 489                 if (r->in.binding) {
 490                         r->out.error_string = talloc_asprintf(mem_ctx,
 491                                                               "Connection to SAMR pipe of DC %s failed: %s",
 492                                                               r->in.binding, connect_with_info->out.error_string);
 493                 } else {
 494                         r->out.error_string = talloc_asprintf(mem_ctx,
 495                                                               "Connection to SAMR pipe of PDC for %s failed: %s",
 496                                                               r->in.domain_name, connect_with_info->out.error_string);
 497                 }
 498                 talloc_free(tmp_ctx);
 499                 return status;
 500         }
 501
 502         samr_pipe = connect_with_info->out.dcerpc_pipe;
 503
 504         status = dcerpc_pipe_auth(tmp_ctx, &samr_pipe,
 505                                   connect_with_info->out.dcerpc_pipe->binding,
 506                                   &dcerpc_table_samr, ctx->cred);
 507         if (!NT_STATUS_IS_OK(status)) {
 508                 r->out.error_string = talloc_asprintf(mem_ctx,
 509                                                 "SAMR bind failed: %s",
 510                                                 nt_errstr(status));
 511                 talloc_free(tmp_ctx);
 512                 return status;
 513         }
 514
 515         /* prepare samr_Connect */
 516         ZERO_STRUCT(p_handle);
 517         sc.in.system_name = NULL;
 518         sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 519         sc.out.connect_handle = &p_handle;
 520
 521         /* 2. do a samr_Connect to get a policy handle */
 522         status = dcerpc_samr_Connect(samr_pipe, tmp_ctx, &sc);
 523         if (!NT_STATUS_IS_OK(status)) {
 524                 r->out.error_string = talloc_asprintf(mem_ctx,
 525                                                 "samr_Connect failed: %s",
 526                                                 nt_errstr(status));
 527                 talloc_free(tmp_ctx);
 528                 return status;
 529         }
 530
 531         /* If this is a connection on ncacn_ip_tcp to Win2k3 SP1, we don't get back this useful info */
 532         if (!connect_with_info->out.domain_name) {
 533                 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
 534                         connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, r->in.domain_name);
 535                 } else {
 536                         /* Bugger, we just lost our way to automaticly find the domain name */
 537                         connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, lp_workgroup());
 538                 }
 539         }
 540
 541         /* Perhaps we didn't get a SID above, because we are against ncacn_ip_tcp */
 542         if (!connect_with_info->out.domain_sid) {
 543                 struct lsa_String name;
 544                 struct samr_LookupDomain l;
 545                 name.string = connect_with_info->out.domain_name;
 546                 l.in.connect_handle = &p_handle;
 547                 l.in.domain_name = &name;
 548
 549                 status = dcerpc_samr_LookupDomain(samr_pipe, tmp_ctx, &l);
 550                 if (!NT_STATUS_IS_OK(status)) {
 551                         r->out.error_string = talloc_asprintf(mem_ctx,
 552                                                               "SAMR LookupDomain failed: %s",
 553                                                               nt_errstr(status));
 554                         talloc_free(tmp_ctx);
 555                         return status;
 556                 }
 557                 connect_with_info->out.domain_sid = l.out.sid;
 558         }
 559
 560         /* prepare samr_OpenDomain */
 561         ZERO_STRUCT(d_handle);
 562         od.in.connect_handle = &p_handle;
 563         od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 564         od.in.sid = connect_with_info->out.domain_sid;
 565         od.out.domain_handle = &d_handle;
 566
 567         /* do a samr_OpenDomain to get a domain handle */
 568         status = dcerpc_samr_OpenDomain(samr_pipe, tmp_ctx, &od);
 569         if (!NT_STATUS_IS_OK(status)) {
 570                 r->out.error_string = talloc_asprintf(mem_ctx,
 571                                                       "samr_OpenDomain for [%s] failed: %s",
 572                                                       dom_sid_string(tmp_ctx, connect_with_info->out.domain_sid),
 573                                                       nt_errstr(status));
 574                 talloc_free(tmp_ctx);
 575                 return status;
 576         }
 577
 578         /* prepare samr_CreateUser2 */
 579         ZERO_STRUCTP(u_handle);
 580         cu.in.domain_handle  = &d_handle;
 581         cu.in.access_mask     = SEC_FLAG_MAXIMUM_ALLOWED;
 582         samr_account_name.string = r->in.account_name;
 583         cu.in.account_name    = &samr_account_name;
 584         cu.in.acct_flags      = r->in.acct_type;
 585         cu.out.user_handle    = u_handle;
 586         cu.out.rid            = &rid;
 587         cu.out.access_granted = &access_granted;
 588
 589         /* do a samr_CreateUser2 to get an account handle, or an error */
 590         cu_status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
 591         status = cu_status;
 592         if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
 593                 /* prepare samr_LookupNames */
 594                 ln.in.domain_handle = &d_handle;
 595                 ln.in.num_names = 1;
 596                 ln.in.names = talloc_array(tmp_ctx, struct lsa_String, 1);
 597                 if (!ln.in.names) {
 598                         r->out.error_string = NULL;
 599                         talloc_free(tmp_ctx);
 600                         return NT_STATUS_NO_MEMORY;
 601                 }
 602                 ln.in.names[0].string = r->in.account_name;
 603
 604                 /* 5. do a samr_LookupNames to get the users rid */
 605                 status = dcerpc_samr_LookupNames(samr_pipe, tmp_ctx, &ln);
 606                 if (!NT_STATUS_IS_OK(status)) {
 607                         r->out.error_string = talloc_asprintf(mem_ctx,
 608                                                 "samr_LookupNames for [%s] failed: %s",
 609                                                 r->in.account_name,
 610                                                 nt_errstr(status));
 611                         talloc_free(tmp_ctx);
 612                         return status;
 613                 }
 614
 615                 /* check if we got one RID for the user */
 616                 if (ln.out.rids.count != 1) {
 617                         r->out.error_string = talloc_asprintf(mem_ctx,
 618                                                               "samr_LookupNames for [%s] returns %d RIDs",
 619                                                               r->in.account_name, ln.out.rids.count);
 620                         talloc_free(tmp_ctx);
 621                         return NT_STATUS_INVALID_PARAMETER;
 622                 }
 623
 624                 /* prepare samr_OpenUser */
 625                 ZERO_STRUCTP(u_handle);
 626                 ou.in.domain_handle = &d_handle;
 627                 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 628                 ou.in.rid = ln.out.rids.ids[0];
 629                 rid = ou.in.rid;
 630                 ou.out.user_handle = u_handle;
 631
 632                 /* 6. do a samr_OpenUser to get a user handle */
 633                 status = dcerpc_samr_OpenUser(samr_pipe, tmp_ctx, &ou);
 634                 if (!NT_STATUS_IS_OK(status)) {
 635                         r->out.error_string = talloc_asprintf(mem_ctx,
 636                                                         "samr_OpenUser for [%s] failed: %s",
 637                                                         r->in.account_name,
 638                                                         nt_errstr(status));
 639                         talloc_free(tmp_ctx);
 640                         return status;
 641                 }
 642
 643                 if (r->in.recreate_account) {
 644                         struct samr_DeleteUser d;
 645                         d.in.user_handle = u_handle;
 646                         d.out.user_handle = u_handle;
 647                         status = dcerpc_samr_DeleteUser(samr_pipe, mem_ctx, &d);
 648                         if (!NT_STATUS_IS_OK(status)) {
 649                                 r->out.error_string = talloc_asprintf(mem_ctx,
 650                                                                       "samr_DeleteUser (for recreate) of [%s] failed: %s",
 651                                                                       r->in.account_name,
 652                                                                       nt_errstr(status));
 653                                 talloc_free(tmp_ctx);
 654                                 return status;
 655                         }
 656
 657                         /* We want to recreate, so delete and another samr_CreateUser2 */
 658
 659                         /* &cu filled in above */
 660                         status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
 661                         if (!NT_STATUS_IS_OK(status)) {
 662                                 r->out.error_string = talloc_asprintf(mem_ctx,
 663                                                                       "samr_CreateUser2 (recreate) for [%s] failed: %s",
 664                                                                       r->in.account_name, nt_errstr(status));
 665                                 talloc_free(tmp_ctx);
 666                                 return status;
 667                         }
 668                 }
 669         } else if (!NT_STATUS_IS_OK(status)) {
 670                 r->out.error_string = talloc_asprintf(mem_ctx,
 671                                                       "samr_CreateUser2 for [%s] failed: %s",
 672                                                       r->in.account_name, nt_errstr(status));
 673                 talloc_free(tmp_ctx);
 674                 return status;
 675         }
 676
 677         /* prepare samr_QueryUserInfo (get flags) */
 678         qui.in.user_handle = u_handle;
 679         qui.in.level = 16;
 680
 681         status = dcerpc_samr_QueryUserInfo(samr_pipe, tmp_ctx, &qui);
 682         if (!NT_STATUS_IS_OK(status)) {
 683                 r->out.error_string = talloc_asprintf(mem_ctx,
 684                                                 "samr_QueryUserInfo for [%s] failed: %s",
 685                                                 r->in.account_name,
 686                                                 nt_errstr(status));
 687                 talloc_free(tmp_ctx);
 688                 return status;
 689         }
 690
 691         if (!qui.out.info) {
 692                 status = NT_STATUS_INVALID_PARAMETER;
 693                 r->out.error_string
 694                         = talloc_asprintf(mem_ctx,
 695                                           "samr_QueryUserInfo failed to return qui.out.info for [%s]: %s",
 696                                           r->in.account_name, nt_errstr(status));
 697                 talloc_free(tmp_ctx);
 698                 return status;
 699         }
 700
 701         old_acct_flags = (qui.out.info->info16.acct_flags & (ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST));
 702         /* Possibly bail if the account is of the wrong type */
 703         if (old_acct_flags
 704             != r->in.acct_type) {
 705                 const char *old_account_type, *new_account_type;
 706                 switch (old_acct_flags) {
 707                 case ACB_WSTRUST:
 708                         old_account_type = "domain member (member)";
 709                         break;
 710                 case ACB_SVRTRUST:
 711                         old_account_type = "domain controller (bdc)";
 712                         break;
 713                 case ACB_DOMTRUST:
 714                         old_account_type = "trusted domain";
 715                         break;
 716                 default:
 717                         return NT_STATUS_INVALID_PARAMETER;
 718                 }
 719                 switch (r->in.acct_type) {
 720                 case ACB_WSTRUST:
 721                         new_account_type = "domain member (member)";
 722                         break;
 723                 case ACB_SVRTRUST:
 724                         new_account_type = "domain controller (bdc)";
 725                         break;
 726                 case ACB_DOMTRUST:
 727                         new_account_type = "trusted domain";
 728                         break;
 729                 default:
 730                         return NT_STATUS_INVALID_PARAMETER;
 731                 }
 732
 733                 if (!NT_STATUS_EQUAL(cu_status, NT_STATUS_USER_EXISTS)) {
 734                         /* We created a new user, but they didn't come out the right type?!? */
 735                         r->out.error_string
 736                                 = talloc_asprintf(mem_ctx,
 737                                                   "We asked to create a new machine account (%s) of type %s, "
 738                                                   "but we got an account of type %s.  This is unexpected.  "
 739                                                   "Perhaps delete the account and try again.",
 740                                                   r->in.account_name, new_account_type, old_account_type);
 741                         talloc_free(tmp_ctx);
 742                         return NT_STATUS_INVALID_PARAMETER;
 743                 } else {
 744                         /* The account is of the wrong type, so bail */
 745
 746                         /* TODO: We should allow a --force option to override, and redo this from the top setting r.in.recreate_account */
 747                         r->out.error_string
 748                                 = talloc_asprintf(mem_ctx,
 749                                                   "The machine account (%s) already exists in the domain %s, "
 750                                                   "but is a %s.  You asked to join as a %s.  Please delete "
 751                                                   "the account and try again.",
 752                                                   r->in.account_name, connect_with_info->out.domain_name, old_account_type, new_account_type);
 753                         talloc_free(tmp_ctx);
 754                         return NT_STATUS_USER_EXISTS;
 755                 }
 756         } else {
 757                 acct_flags = qui.out.info->info16.acct_flags;
 758         }
 759
 760         acct_flags = (acct_flags & ~(ACB_DISABLED|ACB_PWNOTREQ));
 761
 762         /* Find out what password policy this user has */
 763         pwp.in.user_handle = u_handle;
 764
 765         status = dcerpc_samr_GetUserPwInfo(samr_pipe, tmp_ctx, &pwp);
 766         if (NT_STATUS_IS_OK(status)) {
 767                 policy_min_pw_len = pwp.out.info.min_password_length;
 768         }
 769
 770         /* Grab a password of that minimum length */
 771
 772         password_str = generate_random_str(tmp_ctx, MAX(8, policy_min_pw_len));
 773
 774         /* set full_name and reset flags */
 775         ZERO_STRUCT(u_info21);
 776         u_info21.full_name.string       = r->in.account_name;
 777         u_info21.acct_flags             = acct_flags;
 778         u_info21.fields_present         = SAMR_FIELD_FULL_NAME | SAMR_FIELD_ACCT_FLAGS;
 779
 780         r2.samr_handle.level            = LIBNET_SET_PASSWORD_SAMR_HANDLE;
 781         r2.samr_handle.in.account_name  = r->in.account_name;
 782         r2.samr_handle.in.newpassword   = password_str;
 783         r2.samr_handle.in.user_handle   = u_handle;
 784         r2.samr_handle.in.dcerpc_pipe   = samr_pipe;
 785         r2.samr_handle.in.info21        = &u_info21;
 786
 787         status = libnet_SetPassword(ctx, tmp_ctx, &r2);
 788         if (!NT_STATUS_IS_OK(status)) {
 789                 r->out.error_string = talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 790                 talloc_free(tmp_ctx);
 791                 return status;
 792         }
 793
 794         account_sid = dom_sid_add_rid(mem_ctx, connect_with_info->out.domain_sid, rid);
 795         if (!account_sid) {
 796                 r->out.error_string = NULL;
 797                 talloc_free(tmp_ctx);
 798                 return NT_STATUS_NO_MEMORY;
 799         }
 800
 801         /* Finish out by pushing various bits of status data out for the caller to use */
 802         r->out.join_password = password_str;
 803         talloc_steal(mem_ctx, r->out.join_password);
 804
 805         r->out.domain_sid = connect_with_info->out.domain_sid;
 806         talloc_steal(mem_ctx, r->out.domain_sid);
 807
 808         r->out.account_sid = account_sid;
 809         talloc_steal(mem_ctx, r->out.account_sid);
 810
 811         r->out.domain_name = connect_with_info->out.domain_name;
 812         talloc_steal(mem_ctx, r->out.domain_name);
 813         r->out.realm = connect_with_info->out.realm;
 814         talloc_steal(mem_ctx, r->out.realm);
 815         r->out.samr_pipe = samr_pipe;
 816         talloc_steal(mem_ctx, samr_pipe);
 817         r->out.samr_binding = samr_pipe->binding;
 818         talloc_steal(mem_ctx, r->out.samr_binding);
 819         r->out.user_handle = u_handle;
 820         talloc_steal(mem_ctx, u_handle);
 821         r->out.error_string = r2.samr_handle.out.error_string;
 822         talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
 823         r->out.kvno = 0;
 824         r->out.server_dn_str = NULL;
 825         talloc_free(tmp_ctx);
 826
 827         /* Now, if it was AD, then we want to start looking changing a
 828          * few more things.  Otherwise, we are done. */
 829         if (r->out.realm) {
 830                 status = libnet_JoinADSDomain(ctx, r);
 831                 return status;
 832         }
 833
 834         return status;
 835 }
 836
 837 static NTSTATUS libnet_Join_primary_domain(struct libnet_context *ctx,
 838                                            TALLOC_CTX *mem_ctx,
 839                                            struct libnet_Join *r)
 840 {
 841         NTSTATUS status;
 842         TALLOC_CTX *tmp_mem;
 843         struct libnet_JoinDomain *r2;
 844         int ret, rtn;
 845         struct ldb_context *ldb;
 846         struct ldb_dn *base_dn;
 847         struct ldb_message **msgs, *msg;
 848         const char *sct;
 849         const char * const attrs[] = {
 850                 "whenChanged",
 851                 "secret",
 852                 "priorSecret",
 853                 "priorChanged",
 854                 "krb5Keytab",
 855                 "privateKeytab",
 856                 NULL
 857         };
 858         uint32_t acct_type = 0;
 859         const char *account_name;
 860         const char *netbios_name;
 861         char *filter;
 862
 863         r->out.error_string = NULL;
 864
 865         tmp_mem = talloc_new(mem_ctx);
 866         if (!tmp_mem) {
 867                 return NT_STATUS_NO_MEMORY;
 868         }
 869
 870         r2 = talloc(tmp_mem, struct libnet_JoinDomain);
 871         if (!r2) {
 872                 r->out.error_string = NULL;
 873                 talloc_free(tmp_mem);
 874                 return NT_STATUS_NO_MEMORY;
 875         }
 876
 877         if (r->in.join_type == SEC_CHAN_BDC) {
 878                 acct_type = ACB_SVRTRUST;
 879         } else if (r->in.join_type == SEC_CHAN_WKSTA) {
 880                 acct_type = ACB_WSTRUST;
 881         } else {
 882                 r->out.error_string = NULL;
 883                 talloc_free(tmp_mem);
 884                 return NT_STATUS_INVALID_PARAMETER;
 885         }
 886
 887         if (r->in.netbios_name != NULL) {
 888                 netbios_name = r->in.netbios_name;
 889         } else {
 890                 netbios_name = talloc_reference(tmp_mem, lp_netbios_name());
 891                 if (!netbios_name) {
 892                         r->out.error_string = NULL;
 893                         talloc_free(tmp_mem);
 894                         return NT_STATUS_NO_MEMORY;
 895                 }
 896         }
 897
 898         account_name = talloc_asprintf(tmp_mem, "%s$", netbios_name);
 899         if (!account_name) {
 900                 r->out.error_string = NULL;
 901                 talloc_free(tmp_mem);
 902                 return NT_STATUS_NO_MEMORY;
 903         }
 904
 905         /*
 906          * Local secrets are stored in secrets.ldb
 907          * open it to make sure we can write the info into it after the join
 908          */
 909         ldb = secrets_db_connect(tmp_mem);
 910         if (!ldb) {
 911                 r->out.error_string
 912                         = talloc_asprintf(mem_ctx,
 913                                           "Could not open secrets database");
 914                 talloc_free(tmp_mem);
 915                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 916         }
 917
 918         /*
 919          * join the domain
 920          */
 921         ZERO_STRUCTP(r2);
 922         r2->in.domain_name      = r->in.domain_name;
 923         r2->in.account_name     = account_name;
 924         r2->in.netbios_name     = netbios_name;
 925         r2->in.level            = LIBNET_JOINDOMAIN_AUTOMATIC;
 926         r2->in.acct_type        = acct_type;
 927         r2->in.recreate_account = False;
 928         status = libnet_JoinDomain(ctx, r2, r2);
 929         if (!NT_STATUS_IS_OK(status)) {
 930                 r->out.error_string = talloc_steal(mem_ctx, r2->out.error_string);
 931                 talloc_free(tmp_mem);
 932                 return status;
 933         }
 934
 935         /*
 936          * now prepare the record for secrets.ldb
 937          */
 938         sct = talloc_asprintf(tmp_mem, "%d", r->in.join_type);
 939         if (!sct) {
 940                 r->out.error_string = NULL;
 941                 talloc_free(tmp_mem);
 942                 return NT_STATUS_NO_MEMORY;
 943         }
 944
 945         msg = ldb_msg_new(tmp_mem);
 946         if (!msg) {
 947                 r->out.error_string = NULL;
 948                 talloc_free(tmp_mem);
 949                 return NT_STATUS_NO_MEMORY;
 950         }
 951
 952         base_dn = ldb_dn_new(tmp_mem, ldb, "cn=Primary Domains");
 953         if (!base_dn) {
 954                 r->out.error_string = NULL;
 955                 talloc_free(tmp_mem);
 956                 return NT_STATUS_NO_MEMORY;
 957         }
 958
 959         msg->dn = ldb_dn_copy(tmp_mem, base_dn);
 960         if ( ! ldb_dn_add_child_fmt(msg->dn, "flatname=%s", r2->out.domain_name)) {
 961                 r->out.error_string = NULL;
 962                 talloc_free(tmp_mem);
 963                 return NT_STATUS_NO_MEMORY;
 964         }
 965
 966         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "flatname", r2->out.domain_name);
 967         if (rtn == -1) {
 968                 r->out.error_string = NULL;
 969                 talloc_free(tmp_mem);
 970                 return NT_STATUS_NO_MEMORY;
 971         }
 972
 973         if (r2->out.realm) {
 974                 rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "realm", r2->out.realm);
 975                 if (rtn == -1) {
 976                         r->out.error_string = NULL;
 977                         talloc_free(tmp_mem);
 978                         return NT_STATUS_NO_MEMORY;
 979                 }
 980
 981                 rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "objectClass", "primaryDomain");
 982                 if (rtn == -1) {
 983                         r->out.error_string = NULL;
 984                         talloc_free(tmp_mem);
 985                         return NT_STATUS_NO_MEMORY;
 986                 }
 987         }
 988
 989         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "objectClass", "primaryDomain");
 990         if (rtn == -1) {
 991                 r->out.error_string = NULL;
 992                 talloc_free(tmp_mem);
 993                 return NT_STATUS_NO_MEMORY;
 994         }
 995
 996         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
 997         if (rtn == -1) {
 998                 r->out.error_string = NULL;
 999                 talloc_free(tmp_mem);
1000                 return NT_STATUS_NO_MEMORY;
1001         }
1002
1003         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1004         if (rtn == -1) {
1005                 r->out.error_string = NULL;
1006                 talloc_free(tmp_mem);
1007                 return NT_STATUS_NO_MEMORY;
1008         }
1009
1010         rtn = samdb_msg_add_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1011         if (rtn == -1) {
1012                 r->out.error_string = NULL;
1013                 talloc_free(tmp_mem);
1014                 return NT_STATUS_NO_MEMORY;
1015         }
1016
1017         if (r2->out.kvno) {
1018                 rtn = samdb_msg_add_uint(ldb, tmp_mem, msg, "msDS-KeyVersionNumber",
1019                                          r2->out.kvno);
1020                 if (rtn == -1) {
1021                         r->out.error_string = NULL;
1022                         talloc_free(tmp_mem);
1023                         return NT_STATUS_NO_MEMORY;
1024                 }
1025         }
1026
1027         if (r2->out.domain_sid) {
1028                 rtn = samdb_msg_add_dom_sid(ldb, tmp_mem, msg, "objectSid",
1029                                             r2->out.domain_sid);
1030                 if (rtn == -1) {
1031                         r->out.error_string = NULL;
1032                         talloc_free(tmp_mem);
1033                         return NT_STATUS_NO_MEMORY;
1034                 }
1035         }
1036
1037         /*
1038          * search for the secret record
1039          * - remove the records we find
1040          * - and fetch the old secret and store it under priorSecret
1041          */
1042         ret = gendb_search(ldb,
1043                            tmp_mem, base_dn,
1044                            &msgs, attrs,
1045                            "(|" SECRETS_PRIMARY_DOMAIN_FILTER "(realm=%s))",
1046                            r2->out.domain_name, r2->out.realm);
1047         if (ret == 0) {
1048                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secretsKeytab", "secrets.keytab");
1049                 if (rtn == -1) {
1050                         r->out.error_string = NULL;
1051                         talloc_free(tmp_mem);
1052                         return NT_STATUS_NO_MEMORY;
1053                 }
1054         } else if (ret == -1) {
1055                 r->out.error_string
1056                         = talloc_asprintf(mem_ctx,
1057                                           "Search for domain: %s and realm: %s failed: %s",
1058                                           r2->out.domain_name, r2->out.realm, ldb_errstring(ldb));
1059                 talloc_free(tmp_mem);
1060                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1061         } else {
1062                 const struct ldb_val *private_keytab;
1063                 const struct ldb_val *krb5_keytab;
1064                 const struct ldb_val *prior_secret;
1065                 const struct ldb_val *prior_modified_time;
1066                 int i;
1067
1068                 for (i = 0; i < ret; i++) {
1069                         ldb_delete(ldb, msgs[i]->dn);
1070                 }
1071
1072                 prior_secret = ldb_msg_find_ldb_val(msgs[0], "secret");
1073                 if (prior_secret) {
1074                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorSecret", prior_secret);
1075                         if (rtn == -1) {
1076                                 r->out.error_string = NULL;
1077                                 talloc_free(tmp_mem);
1078                                 return NT_STATUS_NO_MEMORY;
1079                         }
1080                 }
1081                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secret", r2->out.join_password);
1082                 if (rtn == -1) {
1083                         r->out.error_string = NULL;
1084                         talloc_free(tmp_mem);
1085                         return NT_STATUS_NO_MEMORY;
1086                 }
1087
1088                 prior_modified_time = ldb_msg_find_ldb_val(msgs[0],
1089                                                            "whenChanged");
1090                 if (prior_modified_time) {
1091                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "priorWhenChanged",
1092                                                   prior_modified_time);
1093                         if (rtn == -1) {
1094                                 r->out.error_string = NULL;
1095                                 talloc_free(tmp_mem);
1096                                 return NT_STATUS_NO_MEMORY;
1097                         }
1098                 }
1099
1100                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "samAccountName", r2->in.account_name);
1101                 if (rtn == -1) {
1102                         r->out.error_string = NULL;
1103                         talloc_free(tmp_mem);
1104                         return NT_STATUS_NO_MEMORY;
1105                 }
1106
1107                 rtn = samdb_msg_set_string(ldb, tmp_mem, msg, "secureChannelType", sct);
1108                 if (rtn == -1) {
1109                         r->out.error_string = NULL;
1110                         talloc_free(tmp_mem);
1111                         return NT_STATUS_NO_MEMORY;
1112                 }
1113
1114                 /* We will want to keep the keytab names */
1115                 private_keytab = ldb_msg_find_ldb_val(msgs[0], "privateKeytab");
1116                 if (private_keytab) {
1117                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "privateKeytab", private_keytab);
1118                         if (rtn == -1) {
1119                                 r->out.error_string = NULL;
1120                                 talloc_free(tmp_mem);
1121                                 return NT_STATUS_NO_MEMORY;
1122                         }
1123                 }
1124                 krb5_keytab = ldb_msg_find_ldb_val(msgs[0], "krb5Keytab");
1125                 if (krb5_keytab) {
1126                         rtn = samdb_msg_set_value(ldb, tmp_mem, msg, "krb5Keytab", krb5_keytab);
1127                         if (rtn == -1) {
1128                                 r->out.error_string = NULL;
1129                                 talloc_free(tmp_mem);
1130                                 return NT_STATUS_NO_MEMORY;
1131                         }
1132                 }
1133         }
1134
1135         /* create the secret */
1136         ret = samdb_add(ldb, tmp_mem, msg);
1137         if (ret != 0) {
1138                 r->out.error_string = talloc_asprintf(mem_ctx, "Failed to create secret record %s",
1139                                                       ldb_dn_get_linearized(msg->dn));
1140                 talloc_free(tmp_mem);
1141                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1142         }
1143
1144         if (r2->out.realm) {
1145                 struct cli_credentials *creds;
1146                 /* Make a credentials structure from it */
1147                 creds = cli_credentials_init(mem_ctx);
1148                 if (!creds) {
1149                         r->out.error_string = NULL;
1150                         talloc_free(tmp_mem);
1151                         return NT_STATUS_NO_MEMORY;
1152                 }
1153                 cli_credentials_set_conf(creds);
1154                 filter = talloc_asprintf(mem_ctx, "dn=%s", ldb_dn_get_linearized(msg->dn));
1155                 status = cli_credentials_set_secrets(creds, NULL, filter);
1156                 if (!NT_STATUS_IS_OK(status)) {
1157                         r->out.error_string = talloc_asprintf(mem_ctx, "Failed to read secrets for keytab update for %s",
1158                                                               filter);
1159                         talloc_free(tmp_mem);
1160                         return status;
1161                 }
1162                 ret = cli_credentials_update_keytab(creds);
1163                 if (ret != 0) {
1164                         r->out.error_string = talloc_asprintf(mem_ctx, "Failed to update keytab for %s",
1165                                                               filter);
1166                         talloc_free(tmp_mem);
1167                         return NT_STATUS_UNSUCCESSFUL;
1168                 }
1169         }
1170
1171         /* move all out parameter to the callers TALLOC_CTX */
1172         r->out.error_string     = NULL;
1173         r->out.join_password    = r2->out.join_password;
1174         talloc_steal(mem_ctx, r2->out.join_password);
1175         r->out.domain_sid       = r2->out.domain_sid;
1176         talloc_steal(mem_ctx, r2->out.domain_sid);
1177         r->out.domain_name      = r2->out.domain_name;
1178         talloc_steal(mem_ctx, r2->out.domain_name);
1179         talloc_free(tmp_mem);
1180         return NT_STATUS_OK;
1181 }
1182
1183 NTSTATUS libnet_Join(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_Join *r)
1184 {
1185         switch (r->in.join_type) {
1186                 case SEC_CHAN_WKSTA:
1187                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1188                 case SEC_CHAN_BDC:
1189                         return libnet_Join_primary_domain(ctx, mem_ctx, r);
1190                 case SEC_CHAN_DOMAIN:
1191                         break;
1192         }
1193
1194         r->out.error_string = talloc_asprintf(mem_ctx,
1195                                               "Invalid join type specified (%08X) attempting to join domain %s",
1196                                               r->in.join_type, r->in.domain_name);
1197         return NT_STATUS_INVALID_PARAMETER;
1198 }