source3/rpc_server/netlogon/srv_netlog_nt.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Andrew Tridgell              1992-1997,
   5  *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
   6  *  Copyright (C) Paul Ashton                       1997.
   7  *  Copyright (C) Jeremy Allison               1998-2001.
   8  *  Copyright (C) Andrew Bartlett                   2001.
   9  *  Copyright (C) Guenther Deschner                 2008-2009.
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 3 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25 /* This is the implementation of the netlogon pipe. */
  26
  27 #include "includes.h"
  28 #include "system/passwd.h" /* uid_wrapper */
  29 #include "ntdomain.h"
  30 #include "../libcli/auth/schannel.h"
  31 #include "../librpc/gen_ndr/srv_netlogon.h"
  32 #include "../librpc/gen_ndr/ndr_samr_c.h"
  33 #include "../librpc/gen_ndr/ndr_lsa_c.h"
  34 #include "rpc_client/cli_lsarpc.h"
  35 #include "rpc_client/init_lsa.h"
  36 #include "rpc_server/rpc_ncacn_np.h"
  37 #include "../libcli/security/security.h"
  38 #include "../libcli/security/dom_sid.h"
  39 #include "librpc/gen_ndr/ndr_drsblobs.h"
  40 #include "lib/crypto/arcfour.h"
  41 #include "lib/crypto/md4.h"
  42 #include "nsswitch/libwbclient/wbclient.h"
  43 #include "../libcli/registry/util_reg.h"
  44 #include "passdb.h"
  45 #include "auth.h"
  46 #include "messages.h"
  47 #include "../lib/tsocket/tsocket.h"
  48 #include "lib/param/param.h"
  49
  50 extern userdom_struct current_user_info;
  51
  52 #undef DBGC_CLASS
  53 #define DBGC_CLASS DBGC_RPC_SRV
  54
  55 struct netlogon_server_pipe_state {
  56         struct netr_Credential client_challenge;
  57         struct netr_Credential server_challenge;
  58 };
  59
  60 /*************************************************************************
  61  _netr_LogonControl
  62  *************************************************************************/
  63
  64 WERROR _netr_LogonControl(struct pipes_struct *p,
  65                           struct netr_LogonControl *r)
  66 {
  67         struct netr_LogonControl2Ex l;
  68
  69         switch (r->in.level) {
  70         case 1:
  71                 break;
  72         case 2:
  73                 return WERR_NOT_SUPPORTED;
  74         default:
  75                 return WERR_UNKNOWN_LEVEL;
  76         }
  77
  78         l.in.logon_server       = r->in.logon_server;
  79         l.in.function_code      = r->in.function_code;
  80         l.in.level              = r->in.level;
  81         l.in.data               = NULL;
  82         l.out.query             = r->out.query;
  83
  84         return _netr_LogonControl2Ex(p, &l);
  85 }
  86
  87 /*************************************************************************
  88  _netr_LogonControl2
  89  *************************************************************************/
  90
  91 WERROR _netr_LogonControl2(struct pipes_struct *p,
  92                            struct netr_LogonControl2 *r)
  93 {
  94         struct netr_LogonControl2Ex l;
  95
  96         l.in.logon_server       = r->in.logon_server;
  97         l.in.function_code      = r->in.function_code;
  98         l.in.level              = r->in.level;
  99         l.in.data               = r->in.data;
 100         l.out.query             = r->out.query;
 101
 102         return _netr_LogonControl2Ex(p, &l);
 103 }
 104
 105 /*************************************************************************
 106  *************************************************************************/
 107
 108 static bool wb_change_trust_creds(const char *domain, WERROR *tc_status)
 109 {
 110         wbcErr result;
 111         struct wbcAuthErrorInfo *error = NULL;
 112
 113         result = wbcChangeTrustCredentials(domain, &error);
 114         switch (result) {
 115         case WBC_ERR_WINBIND_NOT_AVAILABLE:
 116                 return false;
 117         case WBC_ERR_DOMAIN_NOT_FOUND:
 118                 *tc_status = WERR_NO_SUCH_DOMAIN;
 119                 return true;
 120         case WBC_ERR_SUCCESS:
 121                 *tc_status = WERR_OK;
 122                 return true;
 123         default:
 124                 break;
 125         }
 126
 127         if (error && error->nt_status != 0) {
 128                 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
 129         } else {
 130                 *tc_status = WERR_TRUST_FAILURE;
 131         }
 132         wbcFreeMemory(error);
 133         return true;
 134 }
 135
 136 /*************************************************************************
 137  *************************************************************************/
 138
 139 static bool wb_check_trust_creds(const char *domain, WERROR *tc_status)
 140 {
 141         wbcErr result;
 142         struct wbcAuthErrorInfo *error = NULL;
 143
 144         result = wbcCheckTrustCredentials(domain, &error);
 145         switch (result) {
 146         case WBC_ERR_WINBIND_NOT_AVAILABLE:
 147                 return false;
 148         case WBC_ERR_DOMAIN_NOT_FOUND:
 149                 *tc_status = WERR_NO_SUCH_DOMAIN;
 150                 return true;
 151         case WBC_ERR_SUCCESS:
 152                 *tc_status = WERR_OK;
 153                 return true;
 154         default:
 155                 break;
 156         }
 157
 158         if (error && error->nt_status != 0) {
 159                 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
 160         } else {
 161                 *tc_status = WERR_TRUST_FAILURE;
 162         }
 163         wbcFreeMemory(error);
 164         return true;
 165 }
 166
 167 /****************************************************************
 168  _netr_LogonControl2Ex
 169 ****************************************************************/
 170
 171 WERROR _netr_LogonControl2Ex(struct pipes_struct *p,
 172                              struct netr_LogonControl2Ex *r)
 173 {
 174         uint32_t flags = 0x0;
 175         WERROR pdc_connection_status = WERR_OK;
 176         uint32_t logon_attempts = 0x0;
 177         WERROR tc_status;
 178         fstring dc_name2;
 179         const char *dc_name = NULL;
 180         struct sockaddr_storage dc_ss;
 181         const char *domain = NULL;
 182         struct netr_NETLOGON_INFO_1 *info1;
 183         struct netr_NETLOGON_INFO_2 *info2;
 184         struct netr_NETLOGON_INFO_3 *info3;
 185         struct netr_NETLOGON_INFO_4 *info4;
 186         const char *fn;
 187         uint32_t acct_ctrl;
 188         NTSTATUS status;
 189         struct netr_DsRGetDCNameInfo *dc_info;
 190
 191         switch (p->opnum) {
 192         case NDR_NETR_LOGONCONTROL:
 193                 fn = "_netr_LogonControl";
 194                 break;
 195         case NDR_NETR_LOGONCONTROL2:
 196                 fn = "_netr_LogonControl2";
 197                 break;
 198         case NDR_NETR_LOGONCONTROL2EX:
 199                 fn = "_netr_LogonControl2Ex";
 200                 break;
 201         default:
 202                 return WERR_INVALID_PARAM;
 203         }
 204
 205         acct_ctrl = p->session_info->info->acct_flags;
 206
 207         switch (r->in.function_code) {
 208         case NETLOGON_CONTROL_TC_VERIFY:
 209         case NETLOGON_CONTROL_CHANGE_PASSWORD:
 210         case NETLOGON_CONTROL_REDISCOVER:
 211                 if ((geteuid() != sec_initial_uid()) &&
 212                     !nt_token_check_domain_rid(p->session_info->security_token, DOMAIN_RID_ADMINS) &&
 213                     !nt_token_check_sid(&global_sid_Builtin_Administrators, p->session_info->security_token) &&
 214                     !(acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST))) {
 215                         return WERR_ACCESS_DENIED;
 216                 }
 217                 break;
 218         default:
 219                 break;
 220         }
 221
 222         tc_status = WERR_NO_SUCH_DOMAIN;
 223
 224         switch (r->in.function_code) {
 225         case NETLOGON_CONTROL_QUERY:
 226                 tc_status = WERR_OK;
 227                 break;
 228         case NETLOGON_CONTROL_REPLICATE:
 229         case NETLOGON_CONTROL_SYNCHRONIZE:
 230         case NETLOGON_CONTROL_PDC_REPLICATE:
 231         case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
 232         case NETLOGON_CONTROL_BREAKPOINT:
 233                 if (acct_ctrl & ACB_NORMAL) {
 234                         return WERR_NOT_SUPPORTED;
 235                 } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) {
 236                         return WERR_ACCESS_DENIED;
 237                 } else {
 238                         return WERR_ACCESS_DENIED;
 239                 }
 240         case NETLOGON_CONTROL_TRUNCATE_LOG:
 241                 if (acct_ctrl & ACB_NORMAL) {
 242                         break;
 243                 } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) {
 244                         return WERR_ACCESS_DENIED;
 245                 } else {
 246                         return WERR_ACCESS_DENIED;
 247                 }
 248
 249         case NETLOGON_CONTROL_TRANSPORT_NOTIFY:
 250         case NETLOGON_CONTROL_FORCE_DNS_REG:
 251         case NETLOGON_CONTROL_QUERY_DNS_REG:
 252                 return WERR_NOT_SUPPORTED;
 253         case NETLOGON_CONTROL_FIND_USER:
 254                 if (!r->in.data || !r->in.data->user) {
 255                         return WERR_NOT_SUPPORTED;
 256                 }
 257                 break;
 258         case NETLOGON_CONTROL_SET_DBFLAG:
 259                 if (!r->in.data) {
 260                         return WERR_NOT_SUPPORTED;
 261                 }
 262                 break;
 263         case NETLOGON_CONTROL_TC_VERIFY:
 264                 if (!r->in.data || !r->in.data->domain) {
 265                         return WERR_NOT_SUPPORTED;
 266                 }
 267
 268                 if (!wb_check_trust_creds(r->in.data->domain, &tc_status)) {
 269                         return WERR_NOT_SUPPORTED;
 270                 }
 271                 break;
 272         case NETLOGON_CONTROL_TC_QUERY:
 273                 if (!r->in.data || !r->in.data->domain) {
 274                         return WERR_NOT_SUPPORTED;
 275                 }
 276
 277                 domain = r->in.data->domain;
 278
 279                 if (!is_trusted_domain(domain)) {
 280                         break;
 281                 }
 282
 283                 if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) {
 284                         tc_status = WERR_NO_LOGON_SERVERS;
 285                         break;
 286                 }
 287
 288                 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
 289                 if (!dc_name) {
 290                         return WERR_NOMEM;
 291                 }
 292
 293                 tc_status = WERR_OK;
 294
 295                 break;
 296
 297         case NETLOGON_CONTROL_REDISCOVER:
 298                 if (!r->in.data || !r->in.data->domain) {
 299                         return WERR_NOT_SUPPORTED;
 300                 }
 301
 302                 domain = r->in.data->domain;
 303
 304                 if (!is_trusted_domain(domain)) {
 305                         break;
 306                 }
 307
 308                 status = dsgetdcname(p->mem_ctx, p->msg_ctx, domain, NULL, NULL,
 309                                      DS_FORCE_REDISCOVERY | DS_RETURN_FLAT_NAME,
 310                                      &dc_info);
 311                 if (!NT_STATUS_IS_OK(status)) {
 312                         tc_status = WERR_NO_LOGON_SERVERS;
 313                         break;
 314                 }
 315
 316                 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_info->dc_unc);
 317                 if (!dc_name) {
 318                         return WERR_NOMEM;
 319                 }
 320
 321                 tc_status = WERR_OK;
 322
 323                 break;
 324
 325         case NETLOGON_CONTROL_CHANGE_PASSWORD:
 326                 if (!r->in.data || !r->in.data->domain) {
 327                         return WERR_NOT_SUPPORTED;
 328                 }
 329
 330                 if (!wb_change_trust_creds(r->in.data->domain, &tc_status)) {
 331                         return WERR_NOT_SUPPORTED;
 332                 }
 333                 break;
 334
 335         default:
 336                 /* no idea what this should be */
 337                 DEBUG(0,("%s: unimplemented function level [%d]\n",
 338                         fn, r->in.function_code));
 339                 return WERR_UNKNOWN_LEVEL;
 340         }
 341
 342         /* prepare the response */
 343
 344         switch (r->in.level) {
 345         case 1:
 346                 info1 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_1);
 347                 W_ERROR_HAVE_NO_MEMORY(info1);
 348
 349                 info1->flags                    = flags;
 350                 info1->pdc_connection_status    = pdc_connection_status;
 351
 352                 r->out.query->info1 = info1;
 353                 break;
 354         case 2:
 355                 info2 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_2);
 356                 W_ERROR_HAVE_NO_MEMORY(info2);
 357
 358                 info2->flags                    = flags;
 359                 info2->pdc_connection_status    = pdc_connection_status;
 360                 info2->trusted_dc_name          = dc_name;
 361                 info2->tc_connection_status     = tc_status;
 362
 363                 r->out.query->info2 = info2;
 364                 break;
 365         case 3:
 366                 info3 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_3);
 367                 W_ERROR_HAVE_NO_MEMORY(info3);
 368
 369                 info3->flags                    = flags;
 370                 info3->logon_attempts           = logon_attempts;
 371
 372                 r->out.query->info3 = info3;
 373                 break;
 374         case 4:
 375                 info4 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_4);
 376                 W_ERROR_HAVE_NO_MEMORY(info4);
 377
 378                 info4->trusted_dc_name          = dc_name;
 379                 info4->trusted_domain_name      = r->in.data->domain;
 380
 381                 r->out.query->info4 = info4;
 382                 break;
 383         default:
 384                 return WERR_UNKNOWN_LEVEL;
 385         }
 386
 387         return WERR_OK;
 388 }
 389
 390 /*************************************************************************
 391  _netr_NetrEnumerateTrustedDomains
 392  *************************************************************************/
 393
 394 NTSTATUS _netr_NetrEnumerateTrustedDomains(struct pipes_struct *p,
 395                                            struct netr_NetrEnumerateTrustedDomains *r)
 396 {
 397         NTSTATUS status;
 398         NTSTATUS result = NT_STATUS_OK;
 399         DATA_BLOB blob;
 400         int num_domains = 0;
 401         const char **trusted_domains = NULL;
 402         struct lsa_DomainList domain_list;
 403         struct dcerpc_binding_handle *h = NULL;
 404         struct policy_handle pol;
 405         uint32_t enum_ctx = 0;
 406         int i;
 407         uint32_t max_size = (uint32_t)-1;
 408
 409         DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
 410
 411         status = rpcint_binding_handle(p->mem_ctx,
 412                                        &ndr_table_lsarpc,
 413                                        p->remote_address,
 414                                        p->session_info,
 415                                        p->msg_ctx,
 416                                        &h);
 417         if (!NT_STATUS_IS_OK(status)) {
 418                 return status;
 419         }
 420
 421         status = dcerpc_lsa_open_policy2(h,
 422                                          p->mem_ctx,
 423                                          NULL,
 424                                          true,
 425                                          LSA_POLICY_VIEW_LOCAL_INFORMATION,
 426                                          &pol,
 427                                          &result);
 428         if (!NT_STATUS_IS_OK(status)) {
 429                 goto out;
 430         }
 431         if (!NT_STATUS_IS_OK(result)) {
 432                 status = result;
 433                 goto out;
 434         }
 435
 436         do {
 437                 /* Lookup list of trusted domains */
 438                 status = dcerpc_lsa_EnumTrustDom(h,
 439                                                  p->mem_ctx,
 440                                                  &pol,
 441                                                  &enum_ctx,
 442                                                  &domain_list,
 443                                                  max_size,
 444                                                  &result);
 445                 if (!NT_STATUS_IS_OK(status)) {
 446                         goto out;
 447                 }
 448                 if (!NT_STATUS_IS_OK(result) &&
 449                     !NT_STATUS_EQUAL(result, NT_STATUS_NO_MORE_ENTRIES) &&
 450                     !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
 451                         status = result;
 452                         goto out;
 453                 }
 454
 455                 for (i = 0; i < domain_list.count; i++) {
 456                         if (!add_string_to_array(p->mem_ctx, domain_list.domains[i].name.string,
 457                                                  &trusted_domains, &num_domains)) {
 458                                 status = NT_STATUS_NO_MEMORY;
 459                                 goto out;
 460                         }
 461                 }
 462         } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
 463
 464         if (num_domains > 0) {
 465                 /* multi sz terminate */
 466                 trusted_domains = talloc_realloc(p->mem_ctx, trusted_domains, const char *, num_domains + 1);
 467                 if (trusted_domains == NULL) {
 468                         status = NT_STATUS_NO_MEMORY;
 469                         goto out;
 470                 }
 471
 472                 trusted_domains[num_domains] = NULL;
 473         }
 474
 475         if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) {
 476                 TALLOC_FREE(trusted_domains);
 477                 status = NT_STATUS_NO_MEMORY;
 478                 goto out;
 479         }
 480
 481         r->out.trusted_domains_blob->data = blob.data;
 482         r->out.trusted_domains_blob->length = blob.length;
 483
 484         DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
 485
 486         status = NT_STATUS_OK;
 487
 488  out:
 489         if (is_valid_policy_hnd(&pol)) {
 490                 dcerpc_lsa_Close(h, p->mem_ctx, &pol, &result);
 491         }
 492
 493         return status;
 494 }
 495
 496 /*************************************************************************
 497  *************************************************************************/
 498
 499 static NTSTATUS samr_find_machine_account(TALLOC_CTX *mem_ctx,
 500                                           struct dcerpc_binding_handle *b,
 501                                           const char *account_name,
 502                                           uint32_t access_mask,
 503                                           struct dom_sid2 **domain_sid_p,
 504                                           uint32_t *user_rid_p,
 505                                           struct policy_handle *user_handle)
 506 {
 507         NTSTATUS status;
 508         NTSTATUS result = NT_STATUS_OK;
 509         struct policy_handle connect_handle;
 510         struct policy_handle domain_handle = { 0, };
 511         struct lsa_String domain_name;
 512         struct dom_sid2 *domain_sid;
 513         struct lsa_String names;
 514         struct samr_Ids rids;
 515         struct samr_Ids types;
 516         uint32_t rid;
 517
 518         status = dcerpc_samr_Connect2(b, mem_ctx,
 519                                       lp_netbios_name(),
 520                                       SAMR_ACCESS_CONNECT_TO_SERVER |
 521                                       SAMR_ACCESS_ENUM_DOMAINS |
 522                                       SAMR_ACCESS_LOOKUP_DOMAIN,
 523                                       &connect_handle,
 524                                       &result);
 525         if (!NT_STATUS_IS_OK(status)) {
 526                 goto out;
 527         }
 528         if (!NT_STATUS_IS_OK(result)) {
 529                 status = result;
 530                 goto out;
 531         }
 532
 533         init_lsa_String(&domain_name, get_global_sam_name());
 534
 535         status = dcerpc_samr_LookupDomain(b, mem_ctx,
 536                                           &connect_handle,
 537                                           &domain_name,
 538                                           &domain_sid,
 539                                           &result);
 540         if (!NT_STATUS_IS_OK(status)) {
 541                 goto out;
 542         }
 543         if (!NT_STATUS_IS_OK(result)) {
 544                 status = result;
 545                 goto out;
 546         }
 547
 548         status = dcerpc_samr_OpenDomain(b, mem_ctx,
 549                                         &connect_handle,
 550                                         SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
 551                                         domain_sid,
 552                                         &domain_handle,
 553                                         &result);
 554         if (!NT_STATUS_IS_OK(status)) {
 555                 goto out;
 556         }
 557         if (!NT_STATUS_IS_OK(result)) {
 558                 status = result;
 559                 goto out;
 560         }
 561
 562         init_lsa_String(&names, account_name);
 563
 564         status = dcerpc_samr_LookupNames(b, mem_ctx,
 565                                          &domain_handle,
 566                                          1,
 567                                          &names,
 568                                          &rids,
 569                                          &types,
 570                                          &result);
 571         if (!NT_STATUS_IS_OK(status)) {
 572                 goto out;
 573         }
 574         if (!NT_STATUS_IS_OK(result)) {
 575                 status = result;
 576                 goto out;
 577         }
 578
 579         if (rids.count != 1) {
 580                 status = NT_STATUS_NO_SUCH_USER;
 581                 goto out;
 582         }
 583         if (rids.count != types.count) {
 584                 status = NT_STATUS_INVALID_PARAMETER;
 585                 goto out;
 586         }
 587         if (types.ids[0] != SID_NAME_USER) {
 588                 status = NT_STATUS_NO_SUCH_USER;
 589                 goto out;
 590         }
 591
 592         rid = rids.ids[0];
 593
 594         status = dcerpc_samr_OpenUser(b, mem_ctx,
 595                                       &domain_handle,
 596                                       access_mask,
 597                                       rid,
 598                                       user_handle,
 599                                       &result);
 600         if (!NT_STATUS_IS_OK(status)) {
 601                 goto out;
 602         }
 603         if (!NT_STATUS_IS_OK(result)) {
 604                 status = result;
 605                 goto out;
 606         }
 607
 608         if (user_rid_p) {
 609                 *user_rid_p = rid;
 610         }
 611
 612         if (domain_sid_p) {
 613                 *domain_sid_p = domain_sid;
 614         }
 615
 616  out:
 617         if (is_valid_policy_hnd(&domain_handle)) {
 618                 dcerpc_samr_Close(b, mem_ctx, &domain_handle, &result);
 619         }
 620         if (is_valid_policy_hnd(&connect_handle)) {
 621                 dcerpc_samr_Close(b, mem_ctx, &connect_handle, &result);
 622         }
 623
 624         return status;
 625 }
 626
 627 /******************************************************************
 628  gets a machine password entry.  checks access rights of the host.
 629  ******************************************************************/
 630
 631 static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
 632                           enum netr_SchannelType sec_chan_type,
 633                           struct dom_sid *sid,
 634                           struct messaging_context *msg_ctx)
 635 {
 636         NTSTATUS status;
 637         NTSTATUS result = NT_STATUS_OK;
 638         TALLOC_CTX *mem_ctx;
 639         struct dcerpc_binding_handle *h = NULL;
 640         struct tsocket_address *local;
 641         struct policy_handle user_handle;
 642         uint32_t user_rid;
 643         struct dom_sid *domain_sid;
 644         uint32_t acct_ctrl;
 645         union samr_UserInfo *info;
 646         struct auth_session_info *session_info;
 647         int rc;
 648
 649 #if 0
 650
 651     /*
 652      * Currently this code is redundant as we already have a filter
 653      * by hostname list. What this code really needs to do is to
 654      * get a hosts allowed/hosts denied list from the SAM database
 655      * on a per user basis, and make the access decision there.
 656      * I will leave this code here for now as a reminder to implement
 657      * this at a later date. JRA.
 658      */
 659
 660         if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
 661                           p->client_id.name,
 662                           p->client_id.addr)) {
 663                 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
 664                 return False;
 665         }
 666 #endif /* 0 */
 667
 668         mem_ctx = talloc_stackframe();
 669         if (mem_ctx == NULL) {
 670                 status = NT_STATUS_NO_MEMORY;
 671                 goto out;
 672         }
 673
 674         status = make_session_info_system(mem_ctx, &session_info);
 675         if (!NT_STATUS_IS_OK(status)) {
 676                 goto out;
 677         }
 678
 679         ZERO_STRUCT(user_handle);
 680
 681         rc = tsocket_address_inet_from_strings(mem_ctx,
 682                                                "ip",
 683                                                "127.0.0.1",
 684                                                0,
 685                                                &local);
 686         if (rc < 0) {
 687                 status = NT_STATUS_NO_MEMORY;
 688                 goto out;
 689         }
 690
 691         status = rpcint_binding_handle(mem_ctx,
 692                                        &ndr_table_samr,
 693                                        local,
 694                                        session_info,
 695                                        msg_ctx,
 696                                        &h);
 697         if (!NT_STATUS_IS_OK(status)) {
 698                 goto out;
 699         }
 700
 701         status = samr_find_machine_account(mem_ctx, h, mach_acct,
 702                                            SEC_FLAG_MAXIMUM_ALLOWED,
 703                                            &domain_sid, &user_rid,
 704                                            &user_handle);
 705         if (!NT_STATUS_IS_OK(status)) {
 706                 goto out;
 707         }
 708
 709         status = dcerpc_samr_QueryUserInfo2(h,
 710                                             mem_ctx,
 711                                             &user_handle,
 712                                             UserControlInformation,
 713                                             &info,
 714                                             &result);
 715         if (!NT_STATUS_IS_OK(status)) {
 716                 goto out;
 717         }
 718         if (!NT_STATUS_IS_OK(result)) {
 719                 status = result;
 720                 goto out;
 721         }
 722
 723         acct_ctrl = info->info16.acct_flags;
 724
 725         if (acct_ctrl & ACB_DISABLED) {
 726                 DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
 727                 status = NT_STATUS_ACCOUNT_DISABLED;
 728                 goto out;
 729         }
 730
 731         if (!(acct_ctrl & ACB_SVRTRUST) &&
 732             !(acct_ctrl & ACB_WSTRUST) &&
 733             !(acct_ctrl & ACB_DOMTRUST))
 734         {
 735                 DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
 736                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 737                 goto out;
 738         }
 739
 740         switch (sec_chan_type) {
 741                 case SEC_CHAN_BDC:
 742                         if (!(acct_ctrl & ACB_SVRTRUST)) {
 743                                 DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
 744                                          "but not a server trust account\n", mach_acct));
 745                                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 746                                 goto out;
 747                         }
 748                         break;
 749                 case SEC_CHAN_WKSTA:
 750                         if (!(acct_ctrl & ACB_WSTRUST)) {
 751                                 DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
 752                                          "but not a workstation trust account\n", mach_acct));
 753                                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 754                                 goto out;
 755                         }
 756                         break;
 757                 case SEC_CHAN_DOMAIN:
 758                         if (!(acct_ctrl & ACB_DOMTRUST)) {
 759                                 DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
 760                                          "but not a interdomain trust account\n", mach_acct));
 761                                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 762                                 goto out;
 763                         }
 764                         break;
 765                 default:
 766                         break;
 767         }
 768
 769         become_root();
 770         status = dcerpc_samr_QueryUserInfo2(h,
 771                                             mem_ctx,
 772                                             &user_handle,
 773                                             UserInternal1Information,
 774                                             &info,
 775                                             &result);
 776         unbecome_root();
 777         if (!NT_STATUS_IS_OK(status)) {
 778                 goto out;
 779         }
 780         if (!NT_STATUS_IS_OK(result)) {
 781                 status = result;
 782                 goto out;
 783         }
 784
 785         if (info->info18.nt_pwd_active == 0) {
 786                 DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
 787                 status = NT_STATUS_LOGON_FAILURE;
 788                 goto out;
 789         }
 790
 791         /* samr gives out nthash unencrypted (!) */
 792         memcpy(md4pw->hash, info->info18.nt_pwd.hash, 16);
 793
 794         sid_compose(sid, domain_sid, user_rid);
 795
 796  out:
 797         if (h && is_valid_policy_hnd(&user_handle)) {
 798                 dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
 799         }
 800
 801         talloc_free(mem_ctx);
 802
 803         return status;
 804 }
 805
 806 /*************************************************************************
 807  _netr_ServerReqChallenge
 808  *************************************************************************/
 809
 810 NTSTATUS _netr_ServerReqChallenge(struct pipes_struct *p,
 811                                   struct netr_ServerReqChallenge *r)
 812 {
 813         struct netlogon_server_pipe_state *pipe_state =
 814                 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
 815
 816         if (pipe_state) {
 817                 DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
 818                 talloc_free(pipe_state);
 819                 p->private_data = NULL;
 820         }
 821
 822         pipe_state = talloc(p, struct netlogon_server_pipe_state);
 823         NT_STATUS_HAVE_NO_MEMORY(pipe_state);
 824
 825         pipe_state->client_challenge = *r->in.credentials;
 826
 827         generate_random_buffer(pipe_state->server_challenge.data,
 828                                sizeof(pipe_state->server_challenge.data));
 829
 830         *r->out.return_credentials = pipe_state->server_challenge;
 831
 832         p->private_data = pipe_state;
 833
 834         return NT_STATUS_OK;
 835 }
 836
 837 /*************************************************************************
 838  _netr_ServerAuthenticate
 839  Create the initial credentials.
 840  *************************************************************************/
 841
 842 NTSTATUS _netr_ServerAuthenticate(struct pipes_struct *p,
 843                                   struct netr_ServerAuthenticate *r)
 844 {
 845         struct netr_ServerAuthenticate3 a;
 846         uint32_t negotiate_flags = 0;
 847         uint32_t rid;
 848
 849         a.in.server_name                = r->in.server_name;
 850         a.in.account_name               = r->in.account_name;
 851         a.in.secure_channel_type        = r->in.secure_channel_type;
 852         a.in.computer_name              = r->in.computer_name;
 853         a.in.credentials                = r->in.credentials;
 854         a.in.negotiate_flags            = &negotiate_flags;
 855
 856         a.out.return_credentials        = r->out.return_credentials;
 857         a.out.rid                       = &rid;
 858         a.out.negotiate_flags           = &negotiate_flags;
 859
 860         return _netr_ServerAuthenticate3(p, &a);
 861
 862 }
 863
 864 /*************************************************************************
 865  _netr_ServerAuthenticate3
 866  *************************************************************************/
 867
 868 NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
 869                                    struct netr_ServerAuthenticate3 *r)
 870 {
 871         NTSTATUS status;
 872         uint32_t srv_flgs;
 873         /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
 874          * so use a copy to avoid destroying the client values. */
 875         uint32_t in_neg_flags = *r->in.negotiate_flags;
 876         const char *fn;
 877         struct loadparm_context *lp_ctx;
 878         struct dom_sid sid;
 879         struct samr_Password mach_pwd;
 880         struct netlogon_creds_CredentialState *creds;
 881         struct netlogon_server_pipe_state *pipe_state =
 882                 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
 883
 884         /* According to Microsoft (see bugid #6099)
 885          * Windows 7 looks at the negotiate_flags
 886          * returned in this structure *even if the
 887          * call fails with access denied* ! So in order
 888          * to allow Win7 to connect to a Samba NT style
 889          * PDC we set the flags before we know if it's
 890          * an error or not.
 891          */
 892
 893         /* 0x000001ff */
 894         srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
 895                    NETLOGON_NEG_PERSISTENT_SAMREPL |
 896                    NETLOGON_NEG_ARCFOUR |
 897                    NETLOGON_NEG_PROMOTION_COUNT |
 898                    NETLOGON_NEG_CHANGELOG_BDC |
 899                    NETLOGON_NEG_FULL_SYNC_REPL |
 900                    NETLOGON_NEG_MULTIPLE_SIDS |
 901                    NETLOGON_NEG_REDO |
 902                    NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
 903                    NETLOGON_NEG_PASSWORD_SET2;
 904
 905         /* Ensure we support strong (128-bit) keys. */
 906         if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
 907                 srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
 908         }
 909
 910         if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) {
 911                 srv_flgs |= NETLOGON_NEG_SUPPORTS_AES;
 912         }
 913
 914         if (lp_server_schannel() != false) {
 915                 srv_flgs |= NETLOGON_NEG_SCHANNEL;
 916         }
 917
 918         /*
 919          * Support authenticaten of trusted domains.
 920          *
 921          * These flags are the minimum required set which works with win2k3
 922          * and win2k8.
 923          */
 924         if (pdb_capabilities() & PDB_CAP_TRUSTED_DOMAINS_EX) {
 925                 srv_flgs |= NETLOGON_NEG_TRANSITIVE_TRUSTS |
 926                             NETLOGON_NEG_DNS_DOMAIN_TRUSTS |
 927                             NETLOGON_NEG_CROSS_FOREST_TRUSTS |
 928                             NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION;
 929         }
 930
 931         switch (p->opnum) {
 932                 case NDR_NETR_SERVERAUTHENTICATE:
 933                         fn = "_netr_ServerAuthenticate";
 934                         break;
 935                 case NDR_NETR_SERVERAUTHENTICATE2:
 936                         fn = "_netr_ServerAuthenticate2";
 937                         break;
 938                 case NDR_NETR_SERVERAUTHENTICATE3:
 939                         fn = "_netr_ServerAuthenticate3";
 940                         break;
 941                 default:
 942                         return NT_STATUS_INTERNAL_ERROR;
 943         }
 944
 945         /* We use this as the key to store the creds: */
 946         /* r->in.computer_name */
 947
 948         if (!pipe_state) {
 949                 DEBUG(0,("%s: no challenge sent to client %s\n", fn,
 950                         r->in.computer_name));
 951                 status = NT_STATUS_ACCESS_DENIED;
 952                 goto out;
 953         }
 954
 955         if ( (lp_server_schannel() == true) &&
 956              ((in_neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
 957
 958                 /* schannel must be used, but client did not offer it. */
 959                 DEBUG(0,("%s: schannel required but client failed "
 960                         "to offer it. Client was %s\n",
 961                         fn, r->in.account_name));
 962                 status = NT_STATUS_ACCESS_DENIED;
 963                 goto out;
 964         }
 965
 966         status = get_md4pw(&mach_pwd,
 967                            r->in.account_name,
 968                            r->in.secure_channel_type,
 969                            &sid, p->msg_ctx);
 970         if (!NT_STATUS_IS_OK(status)) {
 971                 DEBUG(0,("%s: failed to get machine password for "
 972                         "account %s: %s\n",
 973                         fn, r->in.account_name, nt_errstr(status) ));
 974                 /* always return NT_STATUS_ACCESS_DENIED */
 975                 status = NT_STATUS_ACCESS_DENIED;
 976                 goto out;
 977         }
 978
 979         /* From the client / server challenges and md4 password, generate sess key */
 980         /* Check client credentials are valid. */
 981         creds = netlogon_creds_server_init(p->mem_ctx,
 982                                            r->in.account_name,
 983                                            r->in.computer_name,
 984                                            r->in.secure_channel_type,
 985                                            &pipe_state->client_challenge,
 986                                            &pipe_state->server_challenge,
 987                                            &mach_pwd,
 988                                            r->in.credentials,
 989                                            r->out.return_credentials,
 990                                            srv_flgs);
 991         if (!creds) {
 992                 DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
 993                         "request from client %s machine account %s\n",
 994                         fn, r->in.computer_name,
 995                         r->in.account_name));
 996                 status = NT_STATUS_ACCESS_DENIED;
 997                 goto out;
 998         }
 999
1000         creds->sid = dom_sid_dup(creds, &sid);
1001         if (!creds->sid) {
1002                 status = NT_STATUS_NO_MEMORY;
1003                 goto out;
1004         }
1005
1006         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
1007         if (lp_ctx == NULL) {
1008                 DEBUG(10, ("loadparm_init_s3 failed\n"));
1009                 status = NT_STATUS_INTERNAL_ERROR;
1010                 goto out;
1011         }
1012
1013         /* Store off the state so we can continue after client disconnect. */
1014         become_root();
1015         status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds);
1016         unbecome_root();
1017
1018         talloc_unlink(p->mem_ctx, lp_ctx);
1019
1020         if (!NT_STATUS_IS_OK(status)) {
1021                 goto out;
1022         }
1023
1024         sid_peek_rid(&sid, r->out.rid);
1025
1026         status = NT_STATUS_OK;
1027
1028   out:
1029
1030         *r->out.negotiate_flags = srv_flgs;
1031         return status;
1032 }
1033
1034 /*************************************************************************
1035  _netr_ServerAuthenticate2
1036  *************************************************************************/
1037
1038 NTSTATUS _netr_ServerAuthenticate2(struct pipes_struct *p,
1039                                    struct netr_ServerAuthenticate2 *r)
1040 {
1041         struct netr_ServerAuthenticate3 a;
1042         uint32_t rid;
1043
1044         a.in.server_name                = r->in.server_name;
1045         a.in.account_name               = r->in.account_name;
1046         a.in.secure_channel_type        = r->in.secure_channel_type;
1047         a.in.computer_name              = r->in.computer_name;
1048         a.in.credentials                = r->in.credentials;
1049         a.in.negotiate_flags            = r->in.negotiate_flags;
1050
1051         a.out.return_credentials        = r->out.return_credentials;
1052         a.out.rid                       = &rid;
1053         a.out.negotiate_flags           = r->out.negotiate_flags;
1054
1055         return _netr_ServerAuthenticate3(p, &a);
1056 }
1057
1058 /*************************************************************************
1059  * If schannel is required for this call test that it actually is available.
1060  *************************************************************************/
1061 static NTSTATUS schannel_check_required(struct pipe_auth_data *auth_info,
1062                                         const char *computer_name,
1063                                         bool integrity, bool privacy)
1064 {
1065         if (auth_info && auth_info->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
1066                 if (!privacy && !integrity) {
1067                         return NT_STATUS_OK;
1068                 }
1069
1070                 if ((!privacy && integrity) &&
1071                     auth_info->auth_level == DCERPC_AUTH_LEVEL_INTEGRITY) {
1072                         return NT_STATUS_OK;
1073                 }
1074
1075                 if ((privacy || integrity) &&
1076                     auth_info->auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
1077                         return NT_STATUS_OK;
1078                 }
1079         }
1080
1081         /* test didn't pass */
1082         DEBUG(0, ("schannel_check_required: [%s] is not using schannel\n",
1083                   computer_name));
1084
1085         return NT_STATUS_ACCESS_DENIED;
1086 }
1087
1088 /*************************************************************************
1089  *************************************************************************/
1090
1091 static NTSTATUS netr_creds_server_step_check(struct pipes_struct *p,
1092                                              TALLOC_CTX *mem_ctx,
1093                                              const char *computer_name,
1094                                              struct netr_Authenticator *received_authenticator,
1095                                              struct netr_Authenticator *return_authenticator,
1096                                              struct netlogon_creds_CredentialState **creds_out)
1097 {
1098         NTSTATUS status;
1099         bool schannel_global_required = (lp_server_schannel() == true) ? true:false;
1100         struct loadparm_context *lp_ctx;
1101
1102         if (schannel_global_required) {
1103                 status = schannel_check_required(&p->auth,
1104                                                  computer_name,
1105                                                  false, false);
1106                 if (!NT_STATUS_IS_OK(status)) {
1107                         return status;
1108                 }
1109         }
1110
1111         lp_ctx = loadparm_init_s3(mem_ctx, loadparm_s3_helpers());
1112         if (lp_ctx == NULL) {
1113                 DEBUG(0, ("loadparm_init_s3 failed\n"));
1114                 return NT_STATUS_INTERNAL_ERROR;
1115         }
1116
1117         status = schannel_check_creds_state(mem_ctx, lp_ctx,
1118                                             computer_name, received_authenticator,
1119                                             return_authenticator, creds_out);
1120         talloc_unlink(mem_ctx, lp_ctx);
1121         return status;
1122 }
1123
1124 /*************************************************************************
1125  *************************************************************************/
1126
1127 static NTSTATUS netr_set_machine_account_password(TALLOC_CTX *mem_ctx,
1128                                                   struct auth_session_info *session_info,
1129                                                   struct messaging_context *msg_ctx,
1130                                                   const char *account_name,
1131                                                   struct samr_Password *nt_hash)
1132 {
1133         NTSTATUS status;
1134         NTSTATUS result = NT_STATUS_OK;
1135         struct dcerpc_binding_handle *h = NULL;
1136         struct tsocket_address *local;
1137         struct policy_handle user_handle;
1138         uint32_t acct_ctrl;
1139         union samr_UserInfo *info;
1140         struct samr_UserInfo18 info18;
1141         DATA_BLOB in,out;
1142         int rc;
1143         DATA_BLOB session_key;
1144
1145         ZERO_STRUCT(user_handle);
1146
1147         status = session_extract_session_key(session_info,
1148                                              &session_key,
1149                                              KEY_USE_16BYTES);
1150         if (!NT_STATUS_IS_OK(status)) {
1151                 goto out;
1152         }
1153
1154         rc = tsocket_address_inet_from_strings(mem_ctx,
1155                                                "ip",
1156                                                "127.0.0.1",
1157                                                0,
1158                                                &local);
1159         if (rc < 0) {
1160                 status = NT_STATUS_NO_MEMORY;
1161                 goto out;
1162         }
1163
1164         status = rpcint_binding_handle(mem_ctx,
1165                                        &ndr_table_samr,
1166                                        local,
1167                                        session_info,
1168                                        msg_ctx,
1169                                        &h);
1170         if (!NT_STATUS_IS_OK(status)) {
1171                 goto out;
1172         }
1173
1174         become_root();
1175         status = samr_find_machine_account(mem_ctx,
1176                                            h,
1177                                            account_name,
1178                                            SEC_FLAG_MAXIMUM_ALLOWED,
1179                                            NULL,
1180                                            NULL,
1181                                            &user_handle);
1182         unbecome_root();
1183         if (!NT_STATUS_IS_OK(status)) {
1184                 goto out;
1185         }
1186
1187         status = dcerpc_samr_QueryUserInfo2(h,
1188                                             mem_ctx,
1189                                             &user_handle,
1190                                             UserControlInformation,
1191                                             &info,
1192                                             &result);
1193         if (!NT_STATUS_IS_OK(status)) {
1194                 goto out;
1195         }
1196         if (!NT_STATUS_IS_OK(result)) {
1197                 status = result;
1198                 goto out;
1199         }
1200
1201         acct_ctrl = info->info16.acct_flags;
1202
1203         if (!(acct_ctrl & ACB_WSTRUST ||
1204               acct_ctrl & ACB_SVRTRUST ||
1205               acct_ctrl & ACB_DOMTRUST)) {
1206                 status = NT_STATUS_NO_SUCH_USER;
1207                 goto out;
1208         }
1209
1210         if (acct_ctrl & ACB_DISABLED) {
1211                 status = NT_STATUS_ACCOUNT_DISABLED;
1212                 goto out;
1213         }
1214
1215         ZERO_STRUCT(info18);
1216
1217         in = data_blob_const(nt_hash->hash, 16);
1218         out = data_blob_talloc_zero(mem_ctx, 16);
1219         sess_crypt_blob(&out, &in, &session_key, true);
1220         memcpy(info18.nt_pwd.hash, out.data, out.length);
1221
1222         info18.nt_pwd_active = true;
1223
1224         info->info18 = info18;
1225
1226         become_root();
1227         status = dcerpc_samr_SetUserInfo2(h,
1228                                           mem_ctx,
1229                                           &user_handle,
1230                                           UserInternal1Information,
1231                                           info,
1232                                           &result);
1233         unbecome_root();
1234         if (!NT_STATUS_IS_OK(status)) {
1235                 goto out;
1236         }
1237         if (!NT_STATUS_IS_OK(result)) {
1238                 status = result;
1239                 goto out;
1240         }
1241
1242  out:
1243         if (h && is_valid_policy_hnd(&user_handle)) {
1244                 dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
1245         }
1246
1247         return status;
1248 }
1249
1250 /*************************************************************************
1251  _netr_ServerPasswordSet
1252  *************************************************************************/
1253
1254 NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
1255                                  struct netr_ServerPasswordSet *r)
1256 {
1257         NTSTATUS status = NT_STATUS_OK;
1258         int i;
1259         struct netlogon_creds_CredentialState *creds;
1260
1261         DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
1262
1263         become_root();
1264         status = netr_creds_server_step_check(p, p->mem_ctx,
1265                                               r->in.computer_name,
1266                                               r->in.credential,
1267                                               r->out.return_authenticator,
1268                                               &creds);
1269         unbecome_root();
1270
1271         if (!NT_STATUS_IS_OK(status)) {
1272                 DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
1273                         "request from client %s machine account %s\n",
1274                         r->in.computer_name, creds->computer_name));
1275                 TALLOC_FREE(creds);
1276                 return status;
1277         }
1278
1279         DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
1280                         r->in.computer_name, creds->computer_name));
1281
1282         netlogon_creds_des_decrypt(creds, r->in.new_password);
1283
1284         DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
1285         for(i = 0; i < sizeof(r->in.new_password->hash); i++)
1286                 DEBUG(100,("%02X ", r->in.new_password->hash[i]));
1287         DEBUG(100,("\n"));
1288
1289         status = netr_set_machine_account_password(p->mem_ctx,
1290                                                    p->session_info,
1291                                                    p->msg_ctx,
1292                                                    creds->account_name,
1293                                                    r->in.new_password);
1294         return status;
1295 }
1296
1297 /****************************************************************
1298  _netr_ServerPasswordSet2
1299 ****************************************************************/
1300
1301 NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
1302                                   struct netr_ServerPasswordSet2 *r)
1303 {
1304         NTSTATUS status;
1305         struct netlogon_creds_CredentialState *creds = NULL;
1306         DATA_BLOB plaintext;
1307         struct samr_CryptPassword password_buf;
1308         struct samr_Password nt_hash;
1309
1310         become_root();
1311         status = netr_creds_server_step_check(p, p->mem_ctx,
1312                                               r->in.computer_name,
1313                                               r->in.credential,
1314                                               r->out.return_authenticator,
1315                                               &creds);
1316         unbecome_root();
1317
1318         if (!NT_STATUS_IS_OK(status)) {
1319                 const char *computer_name = "<unknown>";
1320
1321                 if (creds && creds->computer_name) {
1322                         computer_name = creds->computer_name;
1323                 }
1324                 DEBUG(2,("_netr_ServerPasswordSet2: netlogon_creds_server_step "
1325                         "failed. Rejecting auth request from client %s machine account %s\n",
1326                         r->in.computer_name, computer_name));
1327                 TALLOC_FREE(creds);
1328                 return status;
1329         }
1330
1331         memcpy(password_buf.data, r->in.new_password->data, 512);
1332         SIVAL(password_buf.data, 512, r->in.new_password->length);
1333
1334         if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1335                 netlogon_creds_aes_decrypt(creds, password_buf.data, 516);
1336         } else {
1337                 netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
1338         }
1339
1340         if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &plaintext)) {
1341                 TALLOC_FREE(creds);
1342                 return NT_STATUS_WRONG_PASSWORD;
1343         }
1344
1345         mdfour(nt_hash.hash, plaintext.data, plaintext.length);
1346
1347         status = netr_set_machine_account_password(p->mem_ctx,
1348                                                    p->session_info,
1349                                                    p->msg_ctx,
1350                                                    creds->account_name,
1351                                                    &nt_hash);
1352         TALLOC_FREE(creds);
1353         return status;
1354 }
1355
1356 /*************************************************************************
1357  _netr_LogonSamLogoff
1358  *************************************************************************/
1359
1360 NTSTATUS _netr_LogonSamLogoff(struct pipes_struct *p,
1361                               struct netr_LogonSamLogoff *r)
1362 {
1363         NTSTATUS status;
1364         struct netlogon_creds_CredentialState *creds;
1365
1366         become_root();
1367         status = netr_creds_server_step_check(p, p->mem_ctx,
1368                                               r->in.computer_name,
1369                                               r->in.credential,
1370                                               r->out.return_authenticator,
1371                                               &creds);
1372         unbecome_root();
1373
1374         return status;
1375 }
1376
1377 static NTSTATUS _netr_LogonSamLogon_check(const struct netr_LogonSamLogonEx *r)
1378 {
1379         switch (r->in.logon_level) {
1380         case NetlogonInteractiveInformation:
1381         case NetlogonServiceInformation:
1382         case NetlogonInteractiveTransitiveInformation:
1383         case NetlogonServiceTransitiveInformation:
1384                 if (r->in.logon->password == NULL) {
1385                         return NT_STATUS_INVALID_PARAMETER;
1386                 }
1387
1388                 switch (r->in.validation_level) {
1389                 case NetlogonValidationSamInfo:  /* 2 */
1390                 case NetlogonValidationSamInfo2: /* 3 */
1391                         break;
1392                 case NetlogonValidationSamInfo4: /* 6 */
1393                         if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1394                                 DEBUG(10,("Not adding validation info level 6 "
1395                                    "without ADS passdb backend\n"));
1396                                 return NT_STATUS_INVALID_INFO_CLASS;
1397                         }
1398                         break;
1399                 default:
1400                         return NT_STATUS_INVALID_INFO_CLASS;
1401                 }
1402
1403                 break;
1404         case NetlogonNetworkInformation:
1405         case NetlogonNetworkTransitiveInformation:
1406                 if (r->in.logon->network == NULL) {
1407                         return NT_STATUS_INVALID_PARAMETER;
1408                 }
1409
1410                 switch (r->in.validation_level) {
1411                 case NetlogonValidationSamInfo:  /* 2 */
1412                 case NetlogonValidationSamInfo2: /* 3 */
1413                         break;
1414                 case NetlogonValidationSamInfo4: /* 6 */
1415                         if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1416                                 DEBUG(10,("Not adding validation info level 6 "
1417                                    "without ADS passdb backend\n"));
1418                                 return NT_STATUS_INVALID_INFO_CLASS;
1419                         }
1420                         break;
1421                 default:
1422                         return NT_STATUS_INVALID_INFO_CLASS;
1423                 }
1424
1425                 break;
1426
1427         case NetlogonGenericInformation:
1428                 if (r->in.logon->generic == NULL) {
1429                         return NT_STATUS_INVALID_PARAMETER;
1430                 }
1431
1432                 /* we don't support this here */
1433                 return NT_STATUS_INVALID_PARAMETER;
1434 #if 0
1435                 switch (r->in.validation_level) {
1436                 /* TODO: case NetlogonValidationGenericInfo: 4 */
1437                 case NetlogonValidationGenericInfo2: /* 5 */
1438                         break;
1439                 default:
1440                         return NT_STATUS_INVALID_INFO_CLASS;
1441                 }
1442
1443                 break;
1444 #endif
1445         default:
1446                 return NT_STATUS_INVALID_PARAMETER;
1447         }
1448
1449         return NT_STATUS_OK;
1450 }
1451
1452 /*************************************************************************
1453  _netr_LogonSamLogon_base
1454  *************************************************************************/
1455
1456 static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
1457                                          struct netr_LogonSamLogonEx *r,
1458                                          struct netlogon_creds_CredentialState *creds)
1459 {
1460         NTSTATUS status = NT_STATUS_OK;
1461         union netr_LogonLevel *logon = r->in.logon;
1462         const char *nt_username, *nt_domain, *nt_workstation;
1463         struct auth_usersupplied_info *user_info = NULL;
1464         struct auth_serversupplied_info *server_info = NULL;
1465         struct auth_context *auth_context = NULL;
1466         const char *fn;
1467
1468 #ifdef DEBUG_PASSWORD
1469         logon = netlogon_creds_shallow_copy_logon(p->mem_ctx,
1470                                                   r->in.logon_level,
1471                                                   r->in.logon);
1472         if (logon == NULL) {
1473                 logon = r->in.logon;
1474         }
1475 #endif
1476
1477         switch (p->opnum) {
1478                 case NDR_NETR_LOGONSAMLOGON:
1479                         fn = "_netr_LogonSamLogon";
1480                         break;
1481                 case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1482                         fn = "_netr_LogonSamLogonWithFlags";
1483                         break;
1484                 case NDR_NETR_LOGONSAMLOGONEX:
1485                         fn = "_netr_LogonSamLogonEx";
1486                         break;
1487                 default:
1488                         return NT_STATUS_INTERNAL_ERROR;
1489         }
1490
1491         *r->out.authoritative = true; /* authoritative response */
1492
1493         switch (r->in.validation_level) {
1494         case 2:
1495                 r->out.validation->sam2 = talloc_zero(p->mem_ctx, struct netr_SamInfo2);
1496                 if (!r->out.validation->sam2) {
1497                         return NT_STATUS_NO_MEMORY;
1498                 }
1499                 break;
1500         case 3:
1501                 r->out.validation->sam3 = talloc_zero(p->mem_ctx, struct netr_SamInfo3);
1502                 if (!r->out.validation->sam3) {
1503                         return NT_STATUS_NO_MEMORY;
1504                 }
1505                 break;
1506         case 6:
1507                 r->out.validation->sam6 = talloc_zero(p->mem_ctx, struct netr_SamInfo6);
1508                 if (!r->out.validation->sam6) {
1509                         return NT_STATUS_NO_MEMORY;
1510                 }
1511                 break;
1512         default:
1513                 DEBUG(0,("%s: bad validation_level value %d.\n",
1514                         fn, (int)r->in.validation_level));
1515                 return NT_STATUS_INVALID_INFO_CLASS;
1516         }
1517
1518         switch (r->in.logon_level) {
1519         case NetlogonInteractiveInformation:
1520         case NetlogonServiceInformation:
1521         case NetlogonInteractiveTransitiveInformation:
1522         case NetlogonServiceTransitiveInformation:
1523                 nt_username     = logon->password->identity_info.account_name.string ?
1524                                   logon->password->identity_info.account_name.string : "";
1525                 nt_domain       = logon->password->identity_info.domain_name.string ?
1526                                   logon->password->identity_info.domain_name.string : "";
1527                 nt_workstation  = logon->password->identity_info.workstation.string ?
1528                                   logon->password->identity_info.workstation.string : "";
1529
1530                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
1531                 break;
1532         case NetlogonNetworkInformation:
1533         case NetlogonNetworkTransitiveInformation:
1534                 nt_username     = logon->network->identity_info.account_name.string ?
1535                                   logon->network->identity_info.account_name.string : "";
1536                 nt_domain       = logon->network->identity_info.domain_name.string ?
1537                                   logon->network->identity_info.domain_name.string : "";
1538                 nt_workstation  = logon->network->identity_info.workstation.string ?
1539                                   logon->network->identity_info.workstation.string : "";
1540
1541                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
1542                 break;
1543         default:
1544                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1545                 return NT_STATUS_INVALID_INFO_CLASS;
1546         } /* end switch */
1547
1548         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1549         fstrcpy(current_user_info.smb_name, nt_username);
1550         sub_set_smb_name(nt_username);
1551
1552         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1553                 r->in.validation_level, nt_username));
1554
1555         status = NT_STATUS_OK;
1556
1557         netlogon_creds_decrypt_samlogon_logon(creds,
1558                                               r->in.logon_level,
1559                                               logon);
1560
1561         switch (r->in.logon_level) {
1562         case NetlogonNetworkInformation:
1563         case NetlogonNetworkTransitiveInformation:
1564         {
1565                 const char *wksname = nt_workstation;
1566
1567                 status = make_auth_context_fixed(talloc_tos(), &auth_context,
1568                                                  logon->network->challenge);
1569                 if (!NT_STATUS_IS_OK(status)) {
1570                         return status;
1571                 }
1572
1573                 /* For a network logon, the workstation name comes in with two
1574                  * backslashes in the front. Strip them if they are there. */
1575
1576                 if (*wksname == '\\') wksname++;
1577                 if (*wksname == '\\') wksname++;
1578
1579                 /* Standard challenge/response authentication */
1580                 if (!make_user_info_netlogon_network(&user_info,
1581                                                      nt_username, nt_domain,
1582                                                      wksname,
1583                                                      p->remote_address,
1584                                                      logon->network->identity_info.parameter_control,
1585                                                      logon->network->lm.data,
1586                                                      logon->network->lm.length,
1587                                                      logon->network->nt.data,
1588                                                      logon->network->nt.length)) {
1589                         status = NT_STATUS_NO_MEMORY;
1590                 }
1591                 break;
1592         }
1593         case NetlogonInteractiveInformation:
1594         case NetlogonServiceInformation:
1595         case NetlogonInteractiveTransitiveInformation:
1596         case NetlogonServiceTransitiveInformation:
1597
1598                 /* 'Interactive' authentication, supplies the password in its
1599                    MD4 form, encrypted with the session key.  We will convert
1600                    this to challenge/response for the auth subsystem to chew
1601                    on */
1602         {
1603                 uint8_t chal[8];
1604
1605 #ifdef DEBUG_PASSWORD
1606                 if (logon != r->in.logon) {
1607                         DEBUG(100,("lm owf password:"));
1608                         dump_data(100,
1609                                   r->in.logon->password->lmpassword.hash, 16);
1610
1611                         DEBUG(100,("nt owf password:"));
1612                         dump_data(100,
1613                                   r->in.logon->password->ntpassword.hash, 16);
1614                 }
1615
1616                 DEBUG(100,("decrypt of lm owf password:"));
1617                 dump_data(100, logon->password->lmpassword.hash, 16);
1618
1619                 DEBUG(100,("decrypt of nt owf password:"));
1620                 dump_data(100, logon->password->ntpassword.hash, 16);
1621 #endif
1622                 status = make_auth_context_subsystem(talloc_tos(),
1623                                                      &auth_context);
1624                 if (!NT_STATUS_IS_OK(status)) {
1625                         return status;
1626                 }
1627
1628                 auth_get_ntlm_challenge(auth_context, chal);
1629
1630                 if (!make_user_info_netlogon_interactive(&user_info,
1631                                                          nt_username, nt_domain,
1632                                                          nt_workstation,
1633                                                          p->remote_address,
1634                                                          logon->password->identity_info.parameter_control,
1635                                                          chal,
1636                                                          logon->password->lmpassword.hash,
1637                                                          logon->password->ntpassword.hash)) {
1638                         status = NT_STATUS_NO_MEMORY;
1639                 }
1640                 break;
1641         }
1642         default:
1643                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1644                 return NT_STATUS_INVALID_INFO_CLASS;
1645         } /* end switch */
1646
1647         if ( NT_STATUS_IS_OK(status) ) {
1648                 status = auth_check_ntlm_password(auth_context,
1649                         user_info, &server_info);
1650         }
1651
1652         TALLOC_FREE(auth_context);
1653         free_user_info(&user_info);
1654
1655         DEBUG(5,("%s: check_password returned status %s\n",
1656                   fn, nt_errstr(status)));
1657
1658         /* Check account and password */
1659
1660         if (!NT_STATUS_IS_OK(status)) {
1661                 /* If we don't know what this domain is, we need to
1662                    indicate that we are not authoritative.  This
1663                    allows the client to decide if it needs to try
1664                    a local user.  Fix by jpjanosi@us.ibm.com, #2976 */
1665                 if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
1666                      && !strequal(nt_domain, get_global_sam_name())
1667                      && !is_trusted_domain(nt_domain) )
1668                         *r->out.authoritative = false; /* We are not authoritative */
1669
1670                 TALLOC_FREE(server_info);
1671                 return status;
1672         }
1673
1674         if (server_info->guest) {
1675                 /* We don't like guest domain logons... */
1676                 DEBUG(5,("%s: Attempted domain logon as GUEST "
1677                          "denied.\n", fn));
1678                 TALLOC_FREE(server_info);
1679                 return NT_STATUS_LOGON_FAILURE;
1680         }
1681
1682         /* This is the point at which, if the login was successful, that
1683            the SAM Local Security Authority should record that the user is
1684            logged in to the domain.  */
1685
1686         switch (r->in.validation_level) {
1687         case 2:
1688                 status = serverinfo_to_SamInfo2(server_info,
1689                                                 r->out.validation->sam2);
1690                 break;
1691         case 3:
1692                 status = serverinfo_to_SamInfo3(server_info,
1693                                                 r->out.validation->sam3);
1694                 break;
1695         case 6:
1696                 status = serverinfo_to_SamInfo6(server_info,
1697                                                 r->out.validation->sam6);
1698                 break;
1699         }
1700
1701         TALLOC_FREE(server_info);
1702
1703         if (!NT_STATUS_IS_OK(status)) {
1704                 return status;
1705         }
1706
1707         netlogon_creds_encrypt_samlogon_validation(creds,
1708                                                    r->in.validation_level,
1709                                                    r->out.validation);
1710         return NT_STATUS_OK;
1711 }
1712
1713 /****************************************************************
1714  _netr_LogonSamLogonWithFlags
1715 ****************************************************************/
1716
1717 NTSTATUS _netr_LogonSamLogonWithFlags(struct pipes_struct *p,
1718                                       struct netr_LogonSamLogonWithFlags *r)
1719 {
1720         NTSTATUS status;
1721         struct netlogon_creds_CredentialState *creds;
1722         struct netr_LogonSamLogonEx r2;
1723         struct netr_Authenticator return_authenticator;
1724
1725         *r->out.authoritative = true;
1726
1727         r2.in.server_name       = r->in.server_name;
1728         r2.in.computer_name     = r->in.computer_name;
1729         r2.in.logon_level       = r->in.logon_level;
1730         r2.in.logon             = r->in.logon;
1731         r2.in.validation_level  = r->in.validation_level;
1732         r2.in.flags             = r->in.flags;
1733         r2.out.validation       = r->out.validation;
1734         r2.out.authoritative    = r->out.authoritative;
1735         r2.out.flags            = r->out.flags;
1736
1737         status = _netr_LogonSamLogon_check(&r2);
1738         if (!NT_STATUS_IS_OK(status)) {
1739                 return status;
1740         }
1741
1742         become_root();
1743         status = netr_creds_server_step_check(p, p->mem_ctx,
1744                                               r->in.computer_name,
1745                                               r->in.credential,
1746                                               &return_authenticator,
1747                                               &creds);
1748         unbecome_root();
1749         if (!NT_STATUS_IS_OK(status)) {
1750                 return status;
1751         }
1752
1753         status = _netr_LogonSamLogon_base(p, &r2, creds);
1754
1755         *r->out.return_authenticator = return_authenticator;
1756
1757         return status;
1758 }
1759
1760 /*************************************************************************
1761  _netr_LogonSamLogon
1762  *************************************************************************/
1763
1764 NTSTATUS _netr_LogonSamLogon(struct pipes_struct *p,
1765                              struct netr_LogonSamLogon *r)
1766 {
1767         NTSTATUS status;
1768         struct netr_LogonSamLogonWithFlags r2;
1769         uint32_t flags = 0;
1770
1771         r2.in.server_name               = r->in.server_name;
1772         r2.in.computer_name             = r->in.computer_name;
1773         r2.in.credential                = r->in.credential;
1774         r2.in.logon_level               = r->in.logon_level;
1775         r2.in.logon                     = r->in.logon;
1776         r2.in.validation_level          = r->in.validation_level;
1777         r2.in.return_authenticator      = r->in.return_authenticator;
1778         r2.in.flags                     = &flags;
1779         r2.out.validation               = r->out.validation;
1780         r2.out.authoritative            = r->out.authoritative;
1781         r2.out.flags                    = &flags;
1782         r2.out.return_authenticator     = r->out.return_authenticator;
1783
1784         status = _netr_LogonSamLogonWithFlags(p, &r2);
1785
1786         return status;
1787 }
1788
1789 /*************************************************************************
1790  _netr_LogonSamLogonEx
1791  - no credential chaining. Map into net sam logon.
1792  *************************************************************************/
1793
1794 NTSTATUS _netr_LogonSamLogonEx(struct pipes_struct *p,
1795                                struct netr_LogonSamLogonEx *r)
1796 {
1797         NTSTATUS status;
1798         struct netlogon_creds_CredentialState *creds = NULL;
1799         struct loadparm_context *lp_ctx;
1800
1801         *r->out.authoritative = true;
1802
1803         status = _netr_LogonSamLogon_check(r);
1804         if (!NT_STATUS_IS_OK(status)) {
1805                 return status;
1806         }
1807
1808         /* Only allow this if the pipe is protected. */
1809         if (p->auth.auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
1810                 DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n",
1811                         get_remote_machine_name() ));
1812                 return NT_STATUS_INVALID_PARAMETER;
1813         }
1814
1815         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
1816         if (lp_ctx == NULL) {
1817                 DEBUG(0, ("loadparm_init_s3 failed\n"));
1818                 return NT_STATUS_INTERNAL_ERROR;
1819         }
1820
1821         become_root();
1822         status = schannel_get_creds_state(p->mem_ctx, lp_ctx,
1823                                           r->in.computer_name, &creds);
1824         unbecome_root();
1825         talloc_unlink(p->mem_ctx, lp_ctx);
1826
1827         if (!NT_STATUS_IS_OK(status)) {
1828                 return status;
1829         }
1830
1831         status = _netr_LogonSamLogon_base(p, r, creds);
1832         TALLOC_FREE(creds);
1833
1834         return status;
1835 }
1836
1837 /*************************************************************************
1838  _ds_enum_dom_trusts
1839  *************************************************************************/
1840 #if 0   /* JERRY -- not correct */
1841  NTSTATUS _ds_enum_dom_trusts(struct pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
1842                              DS_R_ENUM_DOM_TRUSTS *r_u)
1843 {
1844         NTSTATUS status = NT_STATUS_OK;
1845
1846         /* TODO: According to MSDN, the can only be executed against a
1847            DC or domain member running Windows 2000 or later.  Need
1848            to test against a standalone 2k server and see what it
1849            does.  A windows 2000 DC includes its own domain in the
1850            list.  --jerry */
1851
1852         return status;
1853 }
1854 #endif  /* JERRY */
1855
1856
1857 /****************************************************************
1858 ****************************************************************/
1859
1860 WERROR _netr_LogonUasLogon(struct pipes_struct *p,
1861                            struct netr_LogonUasLogon *r)
1862 {
1863         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1864         return WERR_NOT_SUPPORTED;
1865 }
1866
1867 /****************************************************************
1868 ****************************************************************/
1869
1870 WERROR _netr_LogonUasLogoff(struct pipes_struct *p,
1871                             struct netr_LogonUasLogoff *r)
1872 {
1873         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1874         return WERR_NOT_SUPPORTED;
1875 }
1876
1877 /****************************************************************
1878 ****************************************************************/
1879
1880 NTSTATUS _netr_DatabaseDeltas(struct pipes_struct *p,
1881                               struct netr_DatabaseDeltas *r)
1882 {
1883         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1884         return NT_STATUS_NOT_IMPLEMENTED;
1885 }
1886
1887 /****************************************************************
1888 ****************************************************************/
1889
1890 NTSTATUS _netr_DatabaseSync(struct pipes_struct *p,
1891                             struct netr_DatabaseSync *r)
1892 {
1893         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1894         return NT_STATUS_NOT_IMPLEMENTED;
1895 }
1896
1897 /****************************************************************
1898 ****************************************************************/
1899
1900 NTSTATUS _netr_AccountDeltas(struct pipes_struct *p,
1901                              struct netr_AccountDeltas *r)
1902 {
1903         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1904         return NT_STATUS_NOT_IMPLEMENTED;
1905 }
1906
1907 /****************************************************************
1908 ****************************************************************/
1909
1910 NTSTATUS _netr_AccountSync(struct pipes_struct *p,
1911                            struct netr_AccountSync *r)
1912 {
1913         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1914         return NT_STATUS_NOT_IMPLEMENTED;
1915 }
1916
1917 /****************************************************************
1918 ****************************************************************/
1919
1920 static bool wb_getdcname(TALLOC_CTX *mem_ctx,
1921                          const char *domain,
1922                          const char **dcname,
1923                          uint32_t flags,
1924                          WERROR *werr)
1925 {
1926         wbcErr result;
1927         struct wbcDomainControllerInfo *dc_info = NULL;
1928
1929         result = wbcLookupDomainController(domain,
1930                                            flags,
1931                                            &dc_info);
1932         switch (result) {
1933         case WBC_ERR_SUCCESS:
1934                 break;
1935         case WBC_ERR_WINBIND_NOT_AVAILABLE:
1936                 return false;
1937         case WBC_ERR_DOMAIN_NOT_FOUND:
1938                 *werr = WERR_NO_SUCH_DOMAIN;
1939                 return true;
1940         default:
1941                 *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1942                 return true;
1943         }
1944
1945         *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
1946         wbcFreeMemory(dc_info);
1947         if (!*dcname) {
1948                 *werr = WERR_NOMEM;
1949                 return false;
1950         }
1951
1952         *werr = WERR_OK;
1953
1954         return true;
1955 }
1956
1957 /****************************************************************
1958  _netr_GetDcName
1959 ****************************************************************/
1960
1961 WERROR _netr_GetDcName(struct pipes_struct *p,
1962                        struct netr_GetDcName *r)
1963 {
1964         NTSTATUS status;
1965         WERROR werr;
1966         uint32_t flags;
1967         struct netr_DsRGetDCNameInfo *info;
1968         bool ret;
1969
1970         ret = wb_getdcname(p->mem_ctx,
1971                            r->in.domainname,
1972                            r->out.dcname,
1973                            WBC_LOOKUP_DC_IS_FLAT_NAME |
1974                            WBC_LOOKUP_DC_RETURN_FLAT_NAME |
1975                            WBC_LOOKUP_DC_PDC_REQUIRED,
1976                            &werr);
1977         if (ret == true) {
1978                 return werr;
1979         }
1980
1981         flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
1982
1983         status = dsgetdcname(p->mem_ctx,
1984                              p->msg_ctx,
1985                              r->in.domainname,
1986                              NULL,
1987                              NULL,
1988                              flags,
1989                              &info);
1990         if (!NT_STATUS_IS_OK(status)) {
1991                 return ntstatus_to_werror(status);
1992         }
1993
1994         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
1995         talloc_free(info);
1996         if (!*r->out.dcname) {
1997                 return WERR_NOMEM;
1998         }
1999
2000         return WERR_OK;
2001 }
2002
2003 /****************************************************************
2004  _netr_GetAnyDCName
2005 ****************************************************************/
2006
2007 WERROR _netr_GetAnyDCName(struct pipes_struct *p,
2008                           struct netr_GetAnyDCName *r)
2009 {
2010         NTSTATUS status;
2011         WERROR werr;
2012         uint32_t flags;
2013         struct netr_DsRGetDCNameInfo *info;
2014         bool ret;
2015
2016         ret = wb_getdcname(p->mem_ctx,
2017                            r->in.domainname,
2018                            r->out.dcname,
2019                            WBC_LOOKUP_DC_IS_FLAT_NAME |
2020                            WBC_LOOKUP_DC_RETURN_FLAT_NAME,
2021                            &werr);
2022         if (ret == true) {
2023                 return werr;
2024         }
2025
2026         flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2027
2028         status = dsgetdcname(p->mem_ctx,
2029                              p->msg_ctx,
2030                              r->in.domainname,
2031                              NULL,
2032                              NULL,
2033                              flags,
2034                              &info);
2035         if (!NT_STATUS_IS_OK(status)) {
2036                 return ntstatus_to_werror(status);
2037         }
2038
2039         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2040         talloc_free(info);
2041         if (!*r->out.dcname) {
2042                 return WERR_NOMEM;
2043         }
2044
2045         return WERR_OK;
2046 }
2047
2048 /****************************************************************
2049 ****************************************************************/
2050
2051 NTSTATUS _netr_DatabaseSync2(struct pipes_struct *p,
2052                              struct netr_DatabaseSync2 *r)
2053 {
2054         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2055         return NT_STATUS_NOT_IMPLEMENTED;
2056 }
2057
2058 /****************************************************************
2059 ****************************************************************/
2060
2061 NTSTATUS _netr_DatabaseRedo(struct pipes_struct *p,
2062                             struct netr_DatabaseRedo *r)
2063 {
2064         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2065         return NT_STATUS_NOT_IMPLEMENTED;
2066 }
2067
2068 /****************************************************************
2069 ****************************************************************/
2070
2071 WERROR _netr_DsRGetDCName(struct pipes_struct *p,
2072                           struct netr_DsRGetDCName *r)
2073 {
2074         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2075         return WERR_NOT_SUPPORTED;
2076 }
2077
2078 /****************************************************************
2079 ****************************************************************/
2080
2081 NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
2082                                     struct netr_LogonGetCapabilities *r)
2083 {
2084         struct netlogon_creds_CredentialState *creds;
2085         NTSTATUS status;
2086
2087         become_root();
2088         status = netr_creds_server_step_check(p, p->mem_ctx,
2089                                               r->in.computer_name,
2090                                               r->in.credential,
2091                                               r->out.return_authenticator,
2092                                               &creds);
2093         unbecome_root();
2094         if (!NT_STATUS_IS_OK(status)) {
2095                 return status;
2096         }
2097
2098         if (r->in.query_level != 1) {
2099                 return NT_STATUS_NOT_SUPPORTED;
2100         }
2101
2102         r->out.capabilities->server_capabilities = creds->negotiate_flags;
2103
2104         return NT_STATUS_OK;
2105 }
2106
2107 /****************************************************************
2108 ****************************************************************/
2109
2110 WERROR _netr_NETRLOGONSETSERVICEBITS(struct pipes_struct *p,
2111                                      struct netr_NETRLOGONSETSERVICEBITS *r)
2112 {
2113         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2114         return WERR_NOT_SUPPORTED;
2115 }
2116
2117 /****************************************************************
2118 ****************************************************************/
2119
2120 WERROR _netr_LogonGetTrustRid(struct pipes_struct *p,
2121                               struct netr_LogonGetTrustRid *r)
2122 {
2123         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2124         return WERR_NOT_SUPPORTED;
2125 }
2126
2127 /****************************************************************
2128 ****************************************************************/
2129
2130 WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(struct pipes_struct *p,
2131                                           struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
2132 {
2133         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2134         return WERR_NOT_SUPPORTED;
2135 }
2136
2137 /****************************************************************
2138 ****************************************************************/
2139
2140 WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(struct pipes_struct *p,
2141                                           struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
2142 {
2143         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2144         return WERR_NOT_SUPPORTED;
2145 }
2146
2147 /****************************************************************
2148 ****************************************************************/
2149
2150 WERROR _netr_DsRGetDCNameEx(struct pipes_struct *p,
2151                             struct netr_DsRGetDCNameEx *r)
2152 {
2153         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2154         return WERR_NOT_SUPPORTED;
2155 }
2156
2157 /****************************************************************
2158 ****************************************************************/
2159
2160 WERROR _netr_DsRGetSiteName(struct pipes_struct *p,
2161                             struct netr_DsRGetSiteName *r)
2162 {
2163         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2164         return WERR_NOT_SUPPORTED;
2165 }
2166
2167 /****************************************************************
2168 ****************************************************************/
2169
2170 NTSTATUS _netr_LogonGetDomainInfo(struct pipes_struct *p,
2171                                   struct netr_LogonGetDomainInfo *r)
2172 {
2173         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2174         return NT_STATUS_NOT_IMPLEMENTED;
2175 }
2176
2177 /****************************************************************
2178 ****************************************************************/
2179
2180 WERROR _netr_ServerPasswordGet(struct pipes_struct *p,
2181                                struct netr_ServerPasswordGet *r)
2182 {
2183         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2184         return WERR_NOT_SUPPORTED;
2185 }
2186
2187 /****************************************************************
2188 ****************************************************************/
2189
2190 WERROR _netr_NETRLOGONSENDTOSAM(struct pipes_struct *p,
2191                                 struct netr_NETRLOGONSENDTOSAM *r)
2192 {
2193         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2194         return WERR_NOT_SUPPORTED;
2195 }
2196
2197 /****************************************************************
2198 ****************************************************************/
2199
2200 WERROR _netr_DsRAddressToSitenamesW(struct pipes_struct *p,
2201                                     struct netr_DsRAddressToSitenamesW *r)
2202 {
2203         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2204         return WERR_NOT_SUPPORTED;
2205 }
2206
2207 /****************************************************************
2208 ****************************************************************/
2209
2210 WERROR _netr_DsRGetDCNameEx2(struct pipes_struct *p,
2211                              struct netr_DsRGetDCNameEx2 *r)
2212 {
2213         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2214         return WERR_NOT_SUPPORTED;
2215 }
2216
2217 /****************************************************************
2218 ****************************************************************/
2219
2220 WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(struct pipes_struct *p,
2221                                                  struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
2222 {
2223         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2224         return WERR_NOT_SUPPORTED;
2225 }
2226
2227 /****************************************************************
2228 ****************************************************************/
2229
2230 WERROR _netr_NetrEnumerateTrustedDomainsEx(struct pipes_struct *p,
2231                                            struct netr_NetrEnumerateTrustedDomainsEx *r)
2232 {
2233         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2234         return WERR_NOT_SUPPORTED;
2235 }
2236
2237 /****************************************************************
2238 ****************************************************************/
2239
2240 WERROR _netr_DsRAddressToSitenamesExW(struct pipes_struct *p,
2241                                       struct netr_DsRAddressToSitenamesExW *r)
2242 {
2243         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2244         return WERR_NOT_SUPPORTED;
2245 }
2246
2247 /****************************************************************
2248 ****************************************************************/
2249
2250 WERROR _netr_DsrGetDcSiteCoverageW(struct pipes_struct *p,
2251                                    struct netr_DsrGetDcSiteCoverageW *r)
2252 {
2253         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2254         return WERR_NOT_SUPPORTED;
2255 }
2256
2257 /****************************************************************
2258 ****************************************************************/
2259
2260 WERROR _netr_DsrEnumerateDomainTrusts(struct pipes_struct *p,
2261                                       struct netr_DsrEnumerateDomainTrusts *r)
2262 {
2263         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2264         return WERR_NOT_SUPPORTED;
2265 }
2266
2267 /****************************************************************
2268 ****************************************************************/
2269
2270 WERROR _netr_DsrDeregisterDNSHostRecords(struct pipes_struct *p,
2271                                          struct netr_DsrDeregisterDNSHostRecords *r)
2272 {
2273         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2274         return WERR_NOT_SUPPORTED;
2275 }
2276
2277 /****************************************************************
2278 ****************************************************************/
2279
2280 NTSTATUS _netr_ServerTrustPasswordsGet(struct pipes_struct *p,
2281                                        struct netr_ServerTrustPasswordsGet *r)
2282 {
2283         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2284         return NT_STATUS_NOT_IMPLEMENTED;
2285 }
2286
2287 /****************************************************************
2288 ****************************************************************/
2289
2290 static NTSTATUS fill_forest_trust_array(TALLOC_CTX *mem_ctx,
2291                                         struct lsa_ForestTrustInformation *info)
2292 {
2293         struct lsa_ForestTrustRecord *e;
2294         struct pdb_domain_info *dom_info;
2295         struct lsa_ForestTrustDomainInfo *domain_info;
2296         char **upn_suffixes = NULL;
2297         uint32_t num_suffixes = 0;
2298         uint32_t i = 0;
2299         NTSTATUS status;
2300
2301         dom_info = pdb_get_domain_info(mem_ctx);
2302         if (dom_info == NULL) {
2303                 return NT_STATUS_NO_MEMORY;
2304         }
2305
2306         info->count = 2;
2307
2308         become_root();
2309         status = pdb_enum_upn_suffixes(info, &num_suffixes, &upn_suffixes);
2310         unbecome_root();
2311         if (NT_STATUS_IS_OK(status) && (num_suffixes > 0)) {
2312                 info->count += num_suffixes;
2313         }
2314
2315         info->entries = talloc_array(info, struct lsa_ForestTrustRecord *, info->count);
2316         if (info->entries == NULL) {
2317                 return NT_STATUS_NO_MEMORY;
2318         }
2319
2320         e = talloc(info, struct lsa_ForestTrustRecord);
2321         if (e == NULL) {
2322                 return NT_STATUS_NO_MEMORY;
2323         }
2324
2325         e->flags = 0;
2326         e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2327         e->time = 0; /* so far always 0 in trces. */
2328         e->forest_trust_data.top_level_name.string = talloc_steal(info,
2329                                                                   dom_info->dns_forest);
2330
2331         info->entries[0] = e;
2332
2333         if (num_suffixes > 0) {
2334                 for (i = 0; i < num_suffixes ; i++) {
2335                         e = talloc(info, struct lsa_ForestTrustRecord);
2336                         if (e == NULL) {
2337                                 return NT_STATUS_NO_MEMORY;
2338                         }
2339
2340                         e->flags = 0;
2341                         e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2342                         e->time = 0; /* so far always 0 in traces. */
2343                         e->forest_trust_data.top_level_name.string = upn_suffixes[i];
2344                         info->entries[1 + i] = e;
2345                 }
2346         }
2347
2348         e = talloc(info, struct lsa_ForestTrustRecord);
2349         if (e == NULL) {
2350                 return NT_STATUS_NO_MEMORY;
2351         }
2352
2353         /* TODO: check if disabled and set flags accordingly */
2354         e->flags = 0;
2355         e->type = LSA_FOREST_TRUST_DOMAIN_INFO;
2356         e->time = 0; /* so far always 0 in traces. */
2357
2358         domain_info = &e->forest_trust_data.domain_info;
2359         domain_info->domain_sid = dom_sid_dup(info, &dom_info->sid);
2360
2361         domain_info->dns_domain_name.string = talloc_steal(info,
2362                                                            dom_info->dns_domain);
2363         domain_info->netbios_domain_name.string = talloc_steal(info,
2364                                                                dom_info->name);
2365
2366         info->entries[info->count - 1] = e;
2367
2368         return NT_STATUS_OK;
2369 }
2370
2371 /****************************************************************
2372 ****************************************************************/
2373
2374 WERROR _netr_DsRGetForestTrustInformation(struct pipes_struct *p,
2375                                           struct netr_DsRGetForestTrustInformation *r)
2376 {
2377         NTSTATUS status;
2378         struct lsa_ForestTrustInformation *info, **info_ptr;
2379
2380         if (!(p->pipe_bound && (p->auth.auth_type != DCERPC_AUTH_TYPE_NONE)
2381                        && (p->auth.auth_level != DCERPC_AUTH_LEVEL_NONE))) {
2382                 p->fault_state = DCERPC_FAULT_ACCESS_DENIED;
2383                 return WERR_ACCESS_DENIED;
2384         }
2385
2386         if (r->in.flags & (~DS_GFTI_UPDATE_TDO)) {
2387                 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2388                 return WERR_INVALID_FLAGS;
2389         }
2390
2391         if ((r->in.flags & DS_GFTI_UPDATE_TDO) && (lp_server_role() != ROLE_DOMAIN_PDC)) {
2392                 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2393                 return WERR_NERR_NOTPRIMARY;
2394         }
2395
2396         if ((r->in.trusted_domain_name == NULL) && (r->in.flags & DS_GFTI_UPDATE_TDO)) {
2397                 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2398                 return WERR_INVALID_PARAMETER;
2399         }
2400
2401         /* retrieve forest trust information and stop further processing */
2402         if (r->in.trusted_domain_name == NULL) {
2403                 info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2404                 if (info_ptr == NULL) {
2405                         p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2406                         return WERR_NOMEM;
2407                 }
2408                 info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2409                 if (info == NULL) {
2410                         p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2411                         return WERR_NOMEM;
2412                 }
2413
2414                 /* Fill forest trust information and expand UPN suffixes list */
2415                 status = fill_forest_trust_array(p->mem_ctx, info);
2416                 if (!NT_STATUS_IS_OK(status)) {
2417                         p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2418                         return WERR_NOMEM;
2419                 }
2420
2421                 *info_ptr = info;
2422                 r->out.forest_trust_info = info_ptr;
2423
2424                 return WERR_OK;
2425
2426         }
2427
2428         /* TODO: implement remaining parts of DsrGetForestTrustInformation (opnum 43)
2429          *       when trusted_domain_name is not NULL */
2430
2431         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2432         return WERR_NOT_SUPPORTED;
2433 }
2434
2435 /****************************************************************
2436  _netr_GetForestTrustInformation
2437 ****************************************************************/
2438
2439 NTSTATUS _netr_GetForestTrustInformation(struct pipes_struct *p,
2440                                          struct netr_GetForestTrustInformation *r)
2441 {
2442         NTSTATUS status;
2443         struct netlogon_creds_CredentialState *creds;
2444         struct lsa_ForestTrustInformation *info, **info_ptr;
2445         struct loadparm_context *lp_ctx;
2446
2447         /* TODO: check server name */
2448
2449         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
2450         if (lp_ctx == NULL) {
2451                 DEBUG(0, ("loadparm_init_s3 failed\n"));
2452                 return NT_STATUS_INTERNAL_ERROR;
2453         }
2454
2455         status = schannel_check_creds_state(p->mem_ctx, lp_ctx,
2456                                             r->in.computer_name,
2457                                             r->in.credential,
2458                                             r->out.return_authenticator,
2459                                             &creds);
2460         talloc_unlink(p->mem_ctx, lp_ctx);
2461         if (!NT_STATUS_IS_OK(status)) {
2462                 return status;
2463         }
2464
2465         if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2466             (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2467                 return NT_STATUS_NOT_IMPLEMENTED;
2468         }
2469
2470         info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2471         if (!info_ptr) {
2472                 return NT_STATUS_NO_MEMORY;
2473         }
2474         info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2475         if (!info) {
2476                 return NT_STATUS_NO_MEMORY;
2477         }
2478
2479         /* Fill forest trust information, do expand UPN suffixes list */
2480         status = fill_forest_trust_array(p->mem_ctx, info);
2481         if (!NT_STATUS_IS_OK(status)) {
2482                 return status;
2483         }
2484
2485         *info_ptr = info;
2486         r->out.forest_trust_info = info_ptr;
2487
2488         return NT_STATUS_OK;
2489 }
2490
2491 /****************************************************************
2492 ****************************************************************/
2493
2494 static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
2495                                             const DATA_BLOB *trustAuth_blob,
2496                                             struct netlogon_creds_CredentialState *creds,
2497                                             struct samr_Password *current_pw_enc,
2498                                             struct samr_Password *previous_pw_enc)
2499 {
2500         enum ndr_err_code ndr_err;
2501         struct trustAuthInOutBlob trustAuth;
2502
2503         ndr_err = ndr_pull_struct_blob_all(trustAuth_blob, mem_ctx, &trustAuth,
2504                                            (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2505         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2506                 return NT_STATUS_UNSUCCESSFUL;
2507         }
2508
2509         if (trustAuth.count != 0 && trustAuth.current.count != 0 &&
2510             trustAuth.current.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2511                 mdfour(current_pw_enc->hash,
2512                        trustAuth.current.array[0].AuthInfo.clear.password,
2513                        trustAuth.current.array[0].AuthInfo.clear.size);
2514                 netlogon_creds_des_encrypt(creds, current_pw_enc);
2515         } else {
2516                 return NT_STATUS_UNSUCCESSFUL;
2517         }
2518
2519
2520         if (trustAuth.previous.count != 0 &&
2521             trustAuth.previous.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2522                 mdfour(previous_pw_enc->hash,
2523                        trustAuth.previous.array[0].AuthInfo.clear.password,
2524                        trustAuth.previous.array[0].AuthInfo.clear.size);
2525                 netlogon_creds_des_encrypt(creds, previous_pw_enc);
2526         } else {
2527                 ZERO_STRUCTP(previous_pw_enc);
2528         }
2529
2530         return NT_STATUS_OK;
2531 }
2532
2533 /****************************************************************
2534  _netr_ServerGetTrustInfo
2535 ****************************************************************/
2536
2537 NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
2538                                   struct netr_ServerGetTrustInfo *r)
2539 {
2540         NTSTATUS status;
2541         struct netlogon_creds_CredentialState *creds;
2542         char *account_name;
2543         size_t account_name_last;
2544         bool trusted;
2545         struct netr_TrustInfo *trust_info;
2546         struct pdb_trusted_domain *td;
2547         struct loadparm_context *lp_ctx;
2548
2549         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
2550         if (lp_ctx == NULL) {
2551                 DEBUG(0, ("loadparm_init_s3 failed\n"));
2552                 return NT_STATUS_INTERNAL_ERROR;
2553         }
2554
2555         /* TODO: check server name */
2556
2557         status = schannel_check_creds_state(p->mem_ctx, lp_ctx,
2558                                             r->in.computer_name,
2559                                             r->in.credential,
2560                                             r->out.return_authenticator,
2561                                             &creds);
2562         talloc_unlink(p->mem_ctx, lp_ctx);
2563         if (!NT_STATUS_IS_OK(status)) {
2564                 return status;
2565         }
2566
2567         account_name = talloc_strdup(p->mem_ctx, r->in.account_name);
2568         if (account_name == NULL) {
2569                 return NT_STATUS_NO_MEMORY;
2570         }
2571
2572         account_name_last = strlen(account_name);
2573         if (account_name_last == 0) {
2574                 return NT_STATUS_INVALID_PARAMETER;
2575         }
2576         account_name_last--;
2577         if (account_name[account_name_last] == '.') {
2578                 account_name[account_name_last] = '\0';
2579         }
2580
2581         if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2582             (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2583                 trusted = false;
2584         } else {
2585                 trusted = true;
2586         }
2587
2588
2589         if (trusted) {
2590                 account_name_last = strlen(account_name);
2591                 if (account_name_last == 0) {
2592                         return NT_STATUS_INVALID_PARAMETER;
2593                 }
2594                 account_name_last--;
2595                 if (account_name[account_name_last] == '$') {
2596                         account_name[account_name_last] = '\0';
2597                 }
2598
2599                 status = pdb_get_trusted_domain(p->mem_ctx, account_name, &td);
2600                 if (!NT_STATUS_IS_OK(status)) {
2601                         return status;
2602                 }
2603
2604                 if (r->out.trust_info != NULL) {
2605                         trust_info = talloc_zero(p->mem_ctx, struct netr_TrustInfo);
2606                         if (trust_info == NULL) {
2607                                 return NT_STATUS_NO_MEMORY;
2608                         }
2609                         trust_info->count = 1;
2610
2611                         trust_info->data = talloc_array(trust_info, uint32_t, 1);
2612                         if (trust_info->data == NULL) {
2613                                 return NT_STATUS_NO_MEMORY;
2614                         }
2615                         trust_info->data[0] = td->trust_attributes;
2616
2617                         *r->out.trust_info = trust_info;
2618                 }
2619
2620                 if (td->trust_auth_incoming.data == NULL) {
2621                         return NT_STATUS_INVALID_PARAMETER;
2622                 }
2623
2624                 status = get_password_from_trustAuth(p->mem_ctx,
2625                                                      &td->trust_auth_incoming,
2626                                                      creds,
2627                                                      r->out.new_owf_password,
2628                                                      r->out.old_owf_password);
2629
2630                 if (!NT_STATUS_IS_OK(status)) {
2631                         return status;
2632                 }
2633
2634         } else {
2635 /* TODO: look for machine password */
2636                 ZERO_STRUCTP(r->out.new_owf_password);
2637                 ZERO_STRUCTP(r->out.old_owf_password);
2638
2639                 return NT_STATUS_NOT_IMPLEMENTED;
2640         }
2641
2642         return NT_STATUS_OK;
2643 }
2644
2645 /****************************************************************
2646 ****************************************************************/
2647
2648 NTSTATUS _netr_Unused47(struct pipes_struct *p,
2649                         struct netr_Unused47 *r)
2650 {
2651         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2652         return NT_STATUS_NOT_IMPLEMENTED;
2653 }
2654
2655 /****************************************************************
2656 ****************************************************************/
2657
2658 NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p,
2659                                                  struct netr_DsrUpdateReadOnlyServerDnsRecords *r)
2660 {
2661         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2662         return NT_STATUS_NOT_IMPLEMENTED;
2663 }