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         become_root();
 702         status = samr_find_machine_account(mem_ctx, h, mach_acct,
 703                                            SEC_FLAG_MAXIMUM_ALLOWED,
 704                                            &domain_sid, &user_rid,
 705                                            &user_handle);
 706         unbecome_root();
 707         if (!NT_STATUS_IS_OK(status)) {
 708                 goto out;
 709         }
 710
 711         status = dcerpc_samr_QueryUserInfo2(h,
 712                                             mem_ctx,
 713                                             &user_handle,
 714                                             UserControlInformation,
 715                                             &info,
 716                                             &result);
 717         if (!NT_STATUS_IS_OK(status)) {
 718                 goto out;
 719         }
 720         if (!NT_STATUS_IS_OK(result)) {
 721                 status = result;
 722                 goto out;
 723         }
 724
 725         acct_ctrl = info->info16.acct_flags;
 726
 727         if (acct_ctrl & ACB_DISABLED) {
 728                 DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
 729                 status = NT_STATUS_ACCOUNT_DISABLED;
 730                 goto out;
 731         }
 732
 733         if (!(acct_ctrl & ACB_SVRTRUST) &&
 734             !(acct_ctrl & ACB_WSTRUST) &&
 735             !(acct_ctrl & ACB_DOMTRUST))
 736         {
 737                 DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
 738                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 739                 goto out;
 740         }
 741
 742         switch (sec_chan_type) {
 743                 case SEC_CHAN_BDC:
 744                         if (!(acct_ctrl & ACB_SVRTRUST)) {
 745                                 DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
 746                                          "but not a server trust account\n", mach_acct));
 747                                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 748                                 goto out;
 749                         }
 750                         break;
 751                 case SEC_CHAN_WKSTA:
 752                         if (!(acct_ctrl & ACB_WSTRUST)) {
 753                                 DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
 754                                          "but not a workstation trust account\n", mach_acct));
 755                                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 756                                 goto out;
 757                         }
 758                         break;
 759                 case SEC_CHAN_DOMAIN:
 760                         if (!(acct_ctrl & ACB_DOMTRUST)) {
 761                                 DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
 762                                          "but not a interdomain trust account\n", mach_acct));
 763                                 status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 764                                 goto out;
 765                         }
 766                         break;
 767                 default:
 768                         break;
 769         }
 770
 771         become_root();
 772         status = dcerpc_samr_QueryUserInfo2(h,
 773                                             mem_ctx,
 774                                             &user_handle,
 775                                             UserInternal1Information,
 776                                             &info,
 777                                             &result);
 778         unbecome_root();
 779         if (!NT_STATUS_IS_OK(status)) {
 780                 goto out;
 781         }
 782         if (!NT_STATUS_IS_OK(result)) {
 783                 status = result;
 784                 goto out;
 785         }
 786
 787         if (info->info18.nt_pwd_active == 0) {
 788                 DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
 789                 status = NT_STATUS_LOGON_FAILURE;
 790                 goto out;
 791         }
 792
 793         /* samr gives out nthash unencrypted (!) */
 794         memcpy(md4pw->hash, info->info18.nt_pwd.hash, 16);
 795
 796         sid_compose(sid, domain_sid, user_rid);
 797
 798  out:
 799         if (h && is_valid_policy_hnd(&user_handle)) {
 800                 dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
 801         }
 802
 803         talloc_free(mem_ctx);
 804
 805         return status;
 806 }
 807
 808 /*************************************************************************
 809  _netr_ServerReqChallenge
 810  *************************************************************************/
 811
 812 NTSTATUS _netr_ServerReqChallenge(struct pipes_struct *p,
 813                                   struct netr_ServerReqChallenge *r)
 814 {
 815         struct netlogon_server_pipe_state *pipe_state =
 816                 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
 817
 818         if (pipe_state) {
 819                 DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
 820                 talloc_free(pipe_state);
 821                 p->private_data = NULL;
 822         }
 823
 824         pipe_state = talloc(p, struct netlogon_server_pipe_state);
 825         NT_STATUS_HAVE_NO_MEMORY(pipe_state);
 826
 827         pipe_state->client_challenge = *r->in.credentials;
 828
 829         generate_random_buffer(pipe_state->server_challenge.data,
 830                                sizeof(pipe_state->server_challenge.data));
 831
 832         *r->out.return_credentials = pipe_state->server_challenge;
 833
 834         p->private_data = pipe_state;
 835
 836         return NT_STATUS_OK;
 837 }
 838
 839 /*************************************************************************
 840  _netr_ServerAuthenticate
 841  Create the initial credentials.
 842  *************************************************************************/
 843
 844 NTSTATUS _netr_ServerAuthenticate(struct pipes_struct *p,
 845                                   struct netr_ServerAuthenticate *r)
 846 {
 847         struct netr_ServerAuthenticate3 a;
 848         uint32_t negotiate_flags = 0;
 849         uint32_t rid;
 850
 851         a.in.server_name                = r->in.server_name;
 852         a.in.account_name               = r->in.account_name;
 853         a.in.secure_channel_type        = r->in.secure_channel_type;
 854         a.in.computer_name              = r->in.computer_name;
 855         a.in.credentials                = r->in.credentials;
 856         a.in.negotiate_flags            = &negotiate_flags;
 857
 858         a.out.return_credentials        = r->out.return_credentials;
 859         a.out.rid                       = &rid;
 860         a.out.negotiate_flags           = &negotiate_flags;
 861
 862         return _netr_ServerAuthenticate3(p, &a);
 863
 864 }
 865
 866 /*************************************************************************
 867  _netr_ServerAuthenticate3
 868  *************************************************************************/
 869
 870 NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
 871                                    struct netr_ServerAuthenticate3 *r)
 872 {
 873         NTSTATUS status;
 874         uint32_t srv_flgs;
 875         /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
 876          * so use a copy to avoid destroying the client values. */
 877         uint32_t in_neg_flags = *r->in.negotiate_flags;
 878         const char *fn;
 879         struct loadparm_context *lp_ctx;
 880         struct dom_sid sid;
 881         struct samr_Password mach_pwd;
 882         struct netlogon_creds_CredentialState *creds;
 883         struct netlogon_server_pipe_state *pipe_state =
 884                 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
 885
 886         /* According to Microsoft (see bugid #6099)
 887          * Windows 7 looks at the negotiate_flags
 888          * returned in this structure *even if the
 889          * call fails with access denied* ! So in order
 890          * to allow Win7 to connect to a Samba NT style
 891          * PDC we set the flags before we know if it's
 892          * an error or not.
 893          */
 894
 895         /* 0x000001ff */
 896         srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
 897                    NETLOGON_NEG_PERSISTENT_SAMREPL |
 898                    NETLOGON_NEG_ARCFOUR |
 899                    NETLOGON_NEG_PROMOTION_COUNT |
 900                    NETLOGON_NEG_CHANGELOG_BDC |
 901                    NETLOGON_NEG_FULL_SYNC_REPL |
 902                    NETLOGON_NEG_MULTIPLE_SIDS |
 903                    NETLOGON_NEG_REDO |
 904                    NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
 905                    NETLOGON_NEG_PASSWORD_SET2;
 906
 907         /* Ensure we support strong (128-bit) keys. */
 908         if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
 909                 srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
 910         }
 911
 912         if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) {
 913                 srv_flgs |= NETLOGON_NEG_SUPPORTS_AES;
 914         }
 915
 916         if (lp_server_schannel() != false) {
 917                 srv_flgs |= NETLOGON_NEG_SCHANNEL;
 918         }
 919
 920         /*
 921          * Support authenticaten of trusted domains.
 922          *
 923          * These flags are the minimum required set which works with win2k3
 924          * and win2k8.
 925          */
 926         if (pdb_capabilities() & PDB_CAP_TRUSTED_DOMAINS_EX) {
 927                 srv_flgs |= NETLOGON_NEG_TRANSITIVE_TRUSTS |
 928                             NETLOGON_NEG_DNS_DOMAIN_TRUSTS |
 929                             NETLOGON_NEG_CROSS_FOREST_TRUSTS |
 930                             NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION;
 931         }
 932
 933         switch (p->opnum) {
 934                 case NDR_NETR_SERVERAUTHENTICATE:
 935                         fn = "_netr_ServerAuthenticate";
 936                         break;
 937                 case NDR_NETR_SERVERAUTHENTICATE2:
 938                         fn = "_netr_ServerAuthenticate2";
 939                         break;
 940                 case NDR_NETR_SERVERAUTHENTICATE3:
 941                         fn = "_netr_ServerAuthenticate3";
 942                         break;
 943                 default:
 944                         return NT_STATUS_INTERNAL_ERROR;
 945         }
 946
 947         /* We use this as the key to store the creds: */
 948         /* r->in.computer_name */
 949
 950         if (!pipe_state) {
 951                 DEBUG(0,("%s: no challenge sent to client %s\n", fn,
 952                         r->in.computer_name));
 953                 status = NT_STATUS_ACCESS_DENIED;
 954                 goto out;
 955         }
 956
 957         if ( (lp_server_schannel() == true) &&
 958              ((in_neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
 959
 960                 /* schannel must be used, but client did not offer it. */
 961                 DEBUG(0,("%s: schannel required but client failed "
 962                         "to offer it. Client was %s\n",
 963                         fn, r->in.account_name));
 964                 status = NT_STATUS_ACCESS_DENIED;
 965                 goto out;
 966         }
 967
 968         status = get_md4pw(&mach_pwd,
 969                            r->in.account_name,
 970                            r->in.secure_channel_type,
 971                            &sid, p->msg_ctx);
 972         if (!NT_STATUS_IS_OK(status)) {
 973                 DEBUG(0,("%s: failed to get machine password for "
 974                         "account %s: %s\n",
 975                         fn, r->in.account_name, nt_errstr(status) ));
 976                 /* always return NT_STATUS_ACCESS_DENIED */
 977                 status = NT_STATUS_ACCESS_DENIED;
 978                 goto out;
 979         }
 980
 981         /* From the client / server challenges and md4 password, generate sess key */
 982         /* Check client credentials are valid. */
 983         creds = netlogon_creds_server_init(p->mem_ctx,
 984                                            r->in.account_name,
 985                                            r->in.computer_name,
 986                                            r->in.secure_channel_type,
 987                                            &pipe_state->client_challenge,
 988                                            &pipe_state->server_challenge,
 989                                            &mach_pwd,
 990                                            r->in.credentials,
 991                                            r->out.return_credentials,
 992                                            srv_flgs);
 993         if (!creds) {
 994                 DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
 995                         "request from client %s machine account %s\n",
 996                         fn, r->in.computer_name,
 997                         r->in.account_name));
 998                 status = NT_STATUS_ACCESS_DENIED;
 999                 goto out;
1000         }
1001
1002         creds->sid = dom_sid_dup(creds, &sid);
1003         if (!creds->sid) {
1004                 status = NT_STATUS_NO_MEMORY;
1005                 goto out;
1006         }
1007
1008         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
1009         if (lp_ctx == NULL) {
1010                 DEBUG(10, ("loadparm_init_s3 failed\n"));
1011                 status = NT_STATUS_INTERNAL_ERROR;
1012                 goto out;
1013         }
1014
1015         /* Store off the state so we can continue after client disconnect. */
1016         become_root();
1017         status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds);
1018         unbecome_root();
1019
1020         talloc_unlink(p->mem_ctx, lp_ctx);
1021
1022         if (!NT_STATUS_IS_OK(status)) {
1023                 goto out;
1024         }
1025
1026         sid_peek_rid(&sid, r->out.rid);
1027
1028         status = NT_STATUS_OK;
1029
1030   out:
1031
1032         *r->out.negotiate_flags = srv_flgs;
1033         return status;
1034 }
1035
1036 /*************************************************************************
1037  _netr_ServerAuthenticate2
1038  *************************************************************************/
1039
1040 NTSTATUS _netr_ServerAuthenticate2(struct pipes_struct *p,
1041                                    struct netr_ServerAuthenticate2 *r)
1042 {
1043         struct netr_ServerAuthenticate3 a;
1044         uint32_t rid;
1045
1046         a.in.server_name                = r->in.server_name;
1047         a.in.account_name               = r->in.account_name;
1048         a.in.secure_channel_type        = r->in.secure_channel_type;
1049         a.in.computer_name              = r->in.computer_name;
1050         a.in.credentials                = r->in.credentials;
1051         a.in.negotiate_flags            = r->in.negotiate_flags;
1052
1053         a.out.return_credentials        = r->out.return_credentials;
1054         a.out.rid                       = &rid;
1055         a.out.negotiate_flags           = r->out.negotiate_flags;
1056
1057         return _netr_ServerAuthenticate3(p, &a);
1058 }
1059
1060 /*************************************************************************
1061  * If schannel is required for this call test that it actually is available.
1062  *************************************************************************/
1063 static NTSTATUS schannel_check_required(struct pipe_auth_data *auth_info,
1064                                         const char *computer_name,
1065                                         bool integrity, bool privacy)
1066 {
1067         if (auth_info && auth_info->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
1068                 if (!privacy && !integrity) {
1069                         return NT_STATUS_OK;
1070                 }
1071
1072                 if ((!privacy && integrity) &&
1073                     auth_info->auth_level == DCERPC_AUTH_LEVEL_INTEGRITY) {
1074                         return NT_STATUS_OK;
1075                 }
1076
1077                 if ((privacy || integrity) &&
1078                     auth_info->auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
1079                         return NT_STATUS_OK;
1080                 }
1081         }
1082
1083         /* test didn't pass */
1084         DEBUG(0, ("schannel_check_required: [%s] is not using schannel\n",
1085                   computer_name));
1086
1087         return NT_STATUS_ACCESS_DENIED;
1088 }
1089
1090 /*************************************************************************
1091  *************************************************************************/
1092
1093 static NTSTATUS netr_creds_server_step_check(struct pipes_struct *p,
1094                                              TALLOC_CTX *mem_ctx,
1095                                              const char *computer_name,
1096                                              struct netr_Authenticator *received_authenticator,
1097                                              struct netr_Authenticator *return_authenticator,
1098                                              struct netlogon_creds_CredentialState **creds_out)
1099 {
1100         NTSTATUS status;
1101         bool schannel_global_required = (lp_server_schannel() == true) ? true:false;
1102         struct loadparm_context *lp_ctx;
1103
1104         if (schannel_global_required) {
1105                 status = schannel_check_required(&p->auth,
1106                                                  computer_name,
1107                                                  false, false);
1108                 if (!NT_STATUS_IS_OK(status)) {
1109                         return status;
1110                 }
1111         }
1112
1113         lp_ctx = loadparm_init_s3(mem_ctx, loadparm_s3_helpers());
1114         if (lp_ctx == NULL) {
1115                 DEBUG(0, ("loadparm_init_s3 failed\n"));
1116                 return NT_STATUS_INTERNAL_ERROR;
1117         }
1118
1119         status = schannel_check_creds_state(mem_ctx, lp_ctx,
1120                                             computer_name, received_authenticator,
1121                                             return_authenticator, creds_out);
1122         talloc_unlink(mem_ctx, lp_ctx);
1123         return status;
1124 }
1125
1126 /*************************************************************************
1127  *************************************************************************/
1128
1129 static NTSTATUS netr_set_machine_account_password(TALLOC_CTX *mem_ctx,
1130                                                   struct auth_session_info *session_info,
1131                                                   struct messaging_context *msg_ctx,
1132                                                   const char *account_name,
1133                                                   struct samr_Password *nt_hash)
1134 {
1135         NTSTATUS status;
1136         NTSTATUS result = NT_STATUS_OK;
1137         struct dcerpc_binding_handle *h = NULL;
1138         struct tsocket_address *local;
1139         struct policy_handle user_handle;
1140         uint32_t acct_ctrl;
1141         union samr_UserInfo *info;
1142         struct samr_UserInfo18 info18;
1143         DATA_BLOB in,out;
1144         int rc;
1145         DATA_BLOB session_key;
1146
1147         ZERO_STRUCT(user_handle);
1148
1149         status = session_extract_session_key(session_info,
1150                                              &session_key,
1151                                              KEY_USE_16BYTES);
1152         if (!NT_STATUS_IS_OK(status)) {
1153                 goto out;
1154         }
1155
1156         rc = tsocket_address_inet_from_strings(mem_ctx,
1157                                                "ip",
1158                                                "127.0.0.1",
1159                                                0,
1160                                                &local);
1161         if (rc < 0) {
1162                 status = NT_STATUS_NO_MEMORY;
1163                 goto out;
1164         }
1165
1166         status = rpcint_binding_handle(mem_ctx,
1167                                        &ndr_table_samr,
1168                                        local,
1169                                        session_info,
1170                                        msg_ctx,
1171                                        &h);
1172         if (!NT_STATUS_IS_OK(status)) {
1173                 goto out;
1174         }
1175
1176         become_root();
1177         status = samr_find_machine_account(mem_ctx,
1178                                            h,
1179                                            account_name,
1180                                            SEC_FLAG_MAXIMUM_ALLOWED,
1181                                            NULL,
1182                                            NULL,
1183                                            &user_handle);
1184         unbecome_root();
1185         if (!NT_STATUS_IS_OK(status)) {
1186                 goto out;
1187         }
1188
1189         status = dcerpc_samr_QueryUserInfo2(h,
1190                                             mem_ctx,
1191                                             &user_handle,
1192                                             UserControlInformation,
1193                                             &info,
1194                                             &result);
1195         if (!NT_STATUS_IS_OK(status)) {
1196                 goto out;
1197         }
1198         if (!NT_STATUS_IS_OK(result)) {
1199                 status = result;
1200                 goto out;
1201         }
1202
1203         acct_ctrl = info->info16.acct_flags;
1204
1205         if (!(acct_ctrl & ACB_WSTRUST ||
1206               acct_ctrl & ACB_SVRTRUST ||
1207               acct_ctrl & ACB_DOMTRUST)) {
1208                 status = NT_STATUS_NO_SUCH_USER;
1209                 goto out;
1210         }
1211
1212         if (acct_ctrl & ACB_DISABLED) {
1213                 status = NT_STATUS_ACCOUNT_DISABLED;
1214                 goto out;
1215         }
1216
1217         ZERO_STRUCT(info18);
1218
1219         in = data_blob_const(nt_hash->hash, 16);
1220         out = data_blob_talloc_zero(mem_ctx, 16);
1221         sess_crypt_blob(&out, &in, &session_key, true);
1222         memcpy(info18.nt_pwd.hash, out.data, out.length);
1223
1224         info18.nt_pwd_active = true;
1225
1226         info->info18 = info18;
1227
1228         become_root();
1229         status = dcerpc_samr_SetUserInfo2(h,
1230                                           mem_ctx,
1231                                           &user_handle,
1232                                           UserInternal1Information,
1233                                           info,
1234                                           &result);
1235         unbecome_root();
1236         if (!NT_STATUS_IS_OK(status)) {
1237                 goto out;
1238         }
1239         if (!NT_STATUS_IS_OK(result)) {
1240                 status = result;
1241                 goto out;
1242         }
1243
1244  out:
1245         if (h && is_valid_policy_hnd(&user_handle)) {
1246                 dcerpc_samr_Close(h, mem_ctx, &user_handle, &result);
1247         }
1248
1249         return status;
1250 }
1251
1252 /*************************************************************************
1253  _netr_ServerPasswordSet
1254  *************************************************************************/
1255
1256 NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
1257                                  struct netr_ServerPasswordSet *r)
1258 {
1259         NTSTATUS status = NT_STATUS_OK;
1260         int i;
1261         struct netlogon_creds_CredentialState *creds;
1262
1263         DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
1264
1265         become_root();
1266         status = netr_creds_server_step_check(p, p->mem_ctx,
1267                                               r->in.computer_name,
1268                                               r->in.credential,
1269                                               r->out.return_authenticator,
1270                                               &creds);
1271         unbecome_root();
1272
1273         if (!NT_STATUS_IS_OK(status)) {
1274                 DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
1275                         "request from client %s machine account %s\n",
1276                         r->in.computer_name, creds->computer_name));
1277                 TALLOC_FREE(creds);
1278                 return status;
1279         }
1280
1281         DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
1282                         r->in.computer_name, creds->computer_name));
1283
1284         netlogon_creds_des_decrypt(creds, r->in.new_password);
1285
1286         DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
1287         for(i = 0; i < sizeof(r->in.new_password->hash); i++)
1288                 DEBUG(100,("%02X ", r->in.new_password->hash[i]));
1289         DEBUG(100,("\n"));
1290
1291         status = netr_set_machine_account_password(p->mem_ctx,
1292                                                    p->session_info,
1293                                                    p->msg_ctx,
1294                                                    creds->account_name,
1295                                                    r->in.new_password);
1296         return status;
1297 }
1298
1299 /****************************************************************
1300  _netr_ServerPasswordSet2
1301 ****************************************************************/
1302
1303 NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
1304                                   struct netr_ServerPasswordSet2 *r)
1305 {
1306         NTSTATUS status;
1307         struct netlogon_creds_CredentialState *creds = NULL;
1308         DATA_BLOB plaintext;
1309         struct samr_CryptPassword password_buf;
1310         struct samr_Password nt_hash;
1311
1312         become_root();
1313         status = netr_creds_server_step_check(p, p->mem_ctx,
1314                                               r->in.computer_name,
1315                                               r->in.credential,
1316                                               r->out.return_authenticator,
1317                                               &creds);
1318         unbecome_root();
1319
1320         if (!NT_STATUS_IS_OK(status)) {
1321                 const char *computer_name = "<unknown>";
1322
1323                 if (creds && creds->computer_name) {
1324                         computer_name = creds->computer_name;
1325                 }
1326                 DEBUG(2,("_netr_ServerPasswordSet2: netlogon_creds_server_step "
1327                         "failed. Rejecting auth request from client %s machine account %s\n",
1328                         r->in.computer_name, computer_name));
1329                 TALLOC_FREE(creds);
1330                 return status;
1331         }
1332
1333         memcpy(password_buf.data, r->in.new_password->data, 512);
1334         SIVAL(password_buf.data, 512, r->in.new_password->length);
1335
1336         if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1337                 netlogon_creds_aes_decrypt(creds, password_buf.data, 516);
1338         } else {
1339                 netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
1340         }
1341
1342         if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &plaintext)) {
1343                 TALLOC_FREE(creds);
1344                 return NT_STATUS_WRONG_PASSWORD;
1345         }
1346
1347         mdfour(nt_hash.hash, plaintext.data, plaintext.length);
1348
1349         status = netr_set_machine_account_password(p->mem_ctx,
1350                                                    p->session_info,
1351                                                    p->msg_ctx,
1352                                                    creds->account_name,
1353                                                    &nt_hash);
1354         TALLOC_FREE(creds);
1355         return status;
1356 }
1357
1358 /*************************************************************************
1359  _netr_LogonSamLogoff
1360  *************************************************************************/
1361
1362 NTSTATUS _netr_LogonSamLogoff(struct pipes_struct *p,
1363                               struct netr_LogonSamLogoff *r)
1364 {
1365         NTSTATUS status;
1366         struct netlogon_creds_CredentialState *creds;
1367
1368         become_root();
1369         status = netr_creds_server_step_check(p, p->mem_ctx,
1370                                               r->in.computer_name,
1371                                               r->in.credential,
1372                                               r->out.return_authenticator,
1373                                               &creds);
1374         unbecome_root();
1375
1376         return status;
1377 }
1378
1379 static NTSTATUS _netr_LogonSamLogon_check(const struct netr_LogonSamLogonEx *r)
1380 {
1381         switch (r->in.logon_level) {
1382         case NetlogonInteractiveInformation:
1383         case NetlogonServiceInformation:
1384         case NetlogonInteractiveTransitiveInformation:
1385         case NetlogonServiceTransitiveInformation:
1386                 if (r->in.logon->password == NULL) {
1387                         return NT_STATUS_INVALID_PARAMETER;
1388                 }
1389
1390                 switch (r->in.validation_level) {
1391                 case NetlogonValidationSamInfo:  /* 2 */
1392                 case NetlogonValidationSamInfo2: /* 3 */
1393                         break;
1394                 case NetlogonValidationSamInfo4: /* 6 */
1395                         if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1396                                 DEBUG(10,("Not adding validation info level 6 "
1397                                    "without ADS passdb backend\n"));
1398                                 return NT_STATUS_INVALID_INFO_CLASS;
1399                         }
1400                         break;
1401                 default:
1402                         return NT_STATUS_INVALID_INFO_CLASS;
1403                 }
1404
1405                 break;
1406         case NetlogonNetworkInformation:
1407         case NetlogonNetworkTransitiveInformation:
1408                 if (r->in.logon->network == NULL) {
1409                         return NT_STATUS_INVALID_PARAMETER;
1410                 }
1411
1412                 switch (r->in.validation_level) {
1413                 case NetlogonValidationSamInfo:  /* 2 */
1414                 case NetlogonValidationSamInfo2: /* 3 */
1415                         break;
1416                 case NetlogonValidationSamInfo4: /* 6 */
1417                         if ((pdb_capabilities() & PDB_CAP_ADS) == 0) {
1418                                 DEBUG(10,("Not adding validation info level 6 "
1419                                    "without ADS passdb backend\n"));
1420                                 return NT_STATUS_INVALID_INFO_CLASS;
1421                         }
1422                         break;
1423                 default:
1424                         return NT_STATUS_INVALID_INFO_CLASS;
1425                 }
1426
1427                 break;
1428
1429         case NetlogonGenericInformation:
1430                 if (r->in.logon->generic == NULL) {
1431                         return NT_STATUS_INVALID_PARAMETER;
1432                 }
1433
1434                 /* we don't support this here */
1435                 return NT_STATUS_INVALID_PARAMETER;
1436 #if 0
1437                 switch (r->in.validation_level) {
1438                 /* TODO: case NetlogonValidationGenericInfo: 4 */
1439                 case NetlogonValidationGenericInfo2: /* 5 */
1440                         break;
1441                 default:
1442                         return NT_STATUS_INVALID_INFO_CLASS;
1443                 }
1444
1445                 break;
1446 #endif
1447         default:
1448                 return NT_STATUS_INVALID_PARAMETER;
1449         }
1450
1451         return NT_STATUS_OK;
1452 }
1453
1454 /*************************************************************************
1455  _netr_LogonSamLogon_base
1456  *************************************************************************/
1457
1458 static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
1459                                          struct netr_LogonSamLogonEx *r,
1460                                          struct netlogon_creds_CredentialState *creds)
1461 {
1462         NTSTATUS status = NT_STATUS_OK;
1463         union netr_LogonLevel *logon = r->in.logon;
1464         const char *nt_username, *nt_domain, *nt_workstation;
1465         struct auth_usersupplied_info *user_info = NULL;
1466         struct auth_serversupplied_info *server_info = NULL;
1467         struct auth_context *auth_context = NULL;
1468         const char *fn;
1469
1470 #ifdef DEBUG_PASSWORD
1471         logon = netlogon_creds_shallow_copy_logon(p->mem_ctx,
1472                                                   r->in.logon_level,
1473                                                   r->in.logon);
1474         if (logon == NULL) {
1475                 logon = r->in.logon;
1476         }
1477 #endif
1478
1479         switch (p->opnum) {
1480                 case NDR_NETR_LOGONSAMLOGON:
1481                         fn = "_netr_LogonSamLogon";
1482                         break;
1483                 case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1484                         fn = "_netr_LogonSamLogonWithFlags";
1485                         break;
1486                 case NDR_NETR_LOGONSAMLOGONEX:
1487                         fn = "_netr_LogonSamLogonEx";
1488                         break;
1489                 default:
1490                         return NT_STATUS_INTERNAL_ERROR;
1491         }
1492
1493         *r->out.authoritative = true; /* authoritative response */
1494
1495         switch (r->in.validation_level) {
1496         case 2:
1497                 r->out.validation->sam2 = talloc_zero(p->mem_ctx, struct netr_SamInfo2);
1498                 if (!r->out.validation->sam2) {
1499                         return NT_STATUS_NO_MEMORY;
1500                 }
1501                 break;
1502         case 3:
1503                 r->out.validation->sam3 = talloc_zero(p->mem_ctx, struct netr_SamInfo3);
1504                 if (!r->out.validation->sam3) {
1505                         return NT_STATUS_NO_MEMORY;
1506                 }
1507                 break;
1508         case 6:
1509                 r->out.validation->sam6 = talloc_zero(p->mem_ctx, struct netr_SamInfo6);
1510                 if (!r->out.validation->sam6) {
1511                         return NT_STATUS_NO_MEMORY;
1512                 }
1513                 break;
1514         default:
1515                 DEBUG(0,("%s: bad validation_level value %d.\n",
1516                         fn, (int)r->in.validation_level));
1517                 return NT_STATUS_INVALID_INFO_CLASS;
1518         }
1519
1520         switch (r->in.logon_level) {
1521         case NetlogonInteractiveInformation:
1522         case NetlogonServiceInformation:
1523         case NetlogonInteractiveTransitiveInformation:
1524         case NetlogonServiceTransitiveInformation:
1525                 nt_username     = logon->password->identity_info.account_name.string ?
1526                                   logon->password->identity_info.account_name.string : "";
1527                 nt_domain       = logon->password->identity_info.domain_name.string ?
1528                                   logon->password->identity_info.domain_name.string : "";
1529                 nt_workstation  = logon->password->identity_info.workstation.string ?
1530                                   logon->password->identity_info.workstation.string : "";
1531
1532                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
1533                 break;
1534         case NetlogonNetworkInformation:
1535         case NetlogonNetworkTransitiveInformation:
1536                 nt_username     = logon->network->identity_info.account_name.string ?
1537                                   logon->network->identity_info.account_name.string : "";
1538                 nt_domain       = logon->network->identity_info.domain_name.string ?
1539                                   logon->network->identity_info.domain_name.string : "";
1540                 nt_workstation  = logon->network->identity_info.workstation.string ?
1541                                   logon->network->identity_info.workstation.string : "";
1542
1543                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
1544                 break;
1545         default:
1546                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1547                 return NT_STATUS_INVALID_INFO_CLASS;
1548         } /* end switch */
1549
1550         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1551         fstrcpy(current_user_info.smb_name, nt_username);
1552         sub_set_smb_name(nt_username);
1553
1554         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1555                 r->in.validation_level, nt_username));
1556
1557         status = NT_STATUS_OK;
1558
1559         netlogon_creds_decrypt_samlogon_logon(creds,
1560                                               r->in.logon_level,
1561                                               logon);
1562
1563         switch (r->in.logon_level) {
1564         case NetlogonNetworkInformation:
1565         case NetlogonNetworkTransitiveInformation:
1566         {
1567                 const char *wksname = nt_workstation;
1568
1569                 status = make_auth_context_fixed(talloc_tos(), &auth_context,
1570                                                  logon->network->challenge);
1571                 if (!NT_STATUS_IS_OK(status)) {
1572                         return status;
1573                 }
1574
1575                 /* For a network logon, the workstation name comes in with two
1576                  * backslashes in the front. Strip them if they are there. */
1577
1578                 if (*wksname == '\\') wksname++;
1579                 if (*wksname == '\\') wksname++;
1580
1581                 /* Standard challenge/response authentication */
1582                 if (!make_user_info_netlogon_network(&user_info,
1583                                                      nt_username, nt_domain,
1584                                                      wksname,
1585                                                      p->remote_address,
1586                                                      logon->network->identity_info.parameter_control,
1587                                                      logon->network->lm.data,
1588                                                      logon->network->lm.length,
1589                                                      logon->network->nt.data,
1590                                                      logon->network->nt.length)) {
1591                         status = NT_STATUS_NO_MEMORY;
1592                 }
1593                 break;
1594         }
1595         case NetlogonInteractiveInformation:
1596         case NetlogonServiceInformation:
1597         case NetlogonInteractiveTransitiveInformation:
1598         case NetlogonServiceTransitiveInformation:
1599
1600                 /* 'Interactive' authentication, supplies the password in its
1601                    MD4 form, encrypted with the session key.  We will convert
1602                    this to challenge/response for the auth subsystem to chew
1603                    on */
1604         {
1605                 uint8_t chal[8];
1606
1607 #ifdef DEBUG_PASSWORD
1608                 if (logon != r->in.logon) {
1609                         DEBUG(100,("lm owf password:"));
1610                         dump_data(100,
1611                                   r->in.logon->password->lmpassword.hash, 16);
1612
1613                         DEBUG(100,("nt owf password:"));
1614                         dump_data(100,
1615                                   r->in.logon->password->ntpassword.hash, 16);
1616                 }
1617
1618                 DEBUG(100,("decrypt of lm owf password:"));
1619                 dump_data(100, logon->password->lmpassword.hash, 16);
1620
1621                 DEBUG(100,("decrypt of nt owf password:"));
1622                 dump_data(100, logon->password->ntpassword.hash, 16);
1623 #endif
1624                 status = make_auth_context_subsystem(talloc_tos(),
1625                                                      &auth_context);
1626                 if (!NT_STATUS_IS_OK(status)) {
1627                         return status;
1628                 }
1629
1630                 auth_get_ntlm_challenge(auth_context, chal);
1631
1632                 if (!make_user_info_netlogon_interactive(&user_info,
1633                                                          nt_username, nt_domain,
1634                                                          nt_workstation,
1635                                                          p->remote_address,
1636                                                          logon->password->identity_info.parameter_control,
1637                                                          chal,
1638                                                          logon->password->lmpassword.hash,
1639                                                          logon->password->ntpassword.hash)) {
1640                         status = NT_STATUS_NO_MEMORY;
1641                 }
1642                 break;
1643         }
1644         default:
1645                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1646                 return NT_STATUS_INVALID_INFO_CLASS;
1647         } /* end switch */
1648
1649         if ( NT_STATUS_IS_OK(status) ) {
1650                 status = auth_check_ntlm_password(auth_context,
1651                         user_info, &server_info);
1652         }
1653
1654         TALLOC_FREE(auth_context);
1655         free_user_info(&user_info);
1656
1657         DEBUG(5,("%s: check_password returned status %s\n",
1658                   fn, nt_errstr(status)));
1659
1660         /* Check account and password */
1661
1662         if (!NT_STATUS_IS_OK(status)) {
1663                 /* If we don't know what this domain is, we need to
1664                    indicate that we are not authoritative.  This
1665                    allows the client to decide if it needs to try
1666                    a local user.  Fix by jpjanosi@us.ibm.com, #2976 */
1667                 if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
1668                      && !strequal(nt_domain, get_global_sam_name())
1669                      && !is_trusted_domain(nt_domain) )
1670                         *r->out.authoritative = false; /* We are not authoritative */
1671
1672                 TALLOC_FREE(server_info);
1673                 return status;
1674         }
1675
1676         if (server_info->guest) {
1677                 /* We don't like guest domain logons... */
1678                 DEBUG(5,("%s: Attempted domain logon as GUEST "
1679                          "denied.\n", fn));
1680                 TALLOC_FREE(server_info);
1681                 return NT_STATUS_LOGON_FAILURE;
1682         }
1683
1684         /* This is the point at which, if the login was successful, that
1685            the SAM Local Security Authority should record that the user is
1686            logged in to the domain.  */
1687
1688         switch (r->in.validation_level) {
1689         case 2:
1690                 status = serverinfo_to_SamInfo2(server_info,
1691                                                 r->out.validation->sam2);
1692                 break;
1693         case 3:
1694                 status = serverinfo_to_SamInfo3(server_info,
1695                                                 r->out.validation->sam3);
1696                 break;
1697         case 6:
1698                 status = serverinfo_to_SamInfo6(server_info,
1699                                                 r->out.validation->sam6);
1700                 break;
1701         }
1702
1703         TALLOC_FREE(server_info);
1704
1705         if (!NT_STATUS_IS_OK(status)) {
1706                 return status;
1707         }
1708
1709         netlogon_creds_encrypt_samlogon_validation(creds,
1710                                                    r->in.validation_level,
1711                                                    r->out.validation);
1712         return NT_STATUS_OK;
1713 }
1714
1715 /****************************************************************
1716  _netr_LogonSamLogonWithFlags
1717 ****************************************************************/
1718
1719 NTSTATUS _netr_LogonSamLogonWithFlags(struct pipes_struct *p,
1720                                       struct netr_LogonSamLogonWithFlags *r)
1721 {
1722         NTSTATUS status;
1723         struct netlogon_creds_CredentialState *creds;
1724         struct netr_LogonSamLogonEx r2;
1725         struct netr_Authenticator return_authenticator;
1726
1727         *r->out.authoritative = true;
1728
1729         r2.in.server_name       = r->in.server_name;
1730         r2.in.computer_name     = r->in.computer_name;
1731         r2.in.logon_level       = r->in.logon_level;
1732         r2.in.logon             = r->in.logon;
1733         r2.in.validation_level  = r->in.validation_level;
1734         r2.in.flags             = r->in.flags;
1735         r2.out.validation       = r->out.validation;
1736         r2.out.authoritative    = r->out.authoritative;
1737         r2.out.flags            = r->out.flags;
1738
1739         status = _netr_LogonSamLogon_check(&r2);
1740         if (!NT_STATUS_IS_OK(status)) {
1741                 return status;
1742         }
1743
1744         become_root();
1745         status = netr_creds_server_step_check(p, p->mem_ctx,
1746                                               r->in.computer_name,
1747                                               r->in.credential,
1748                                               &return_authenticator,
1749                                               &creds);
1750         unbecome_root();
1751         if (!NT_STATUS_IS_OK(status)) {
1752                 return status;
1753         }
1754
1755         status = _netr_LogonSamLogon_base(p, &r2, creds);
1756
1757         *r->out.return_authenticator = return_authenticator;
1758
1759         return status;
1760 }
1761
1762 /*************************************************************************
1763  _netr_LogonSamLogon
1764  *************************************************************************/
1765
1766 NTSTATUS _netr_LogonSamLogon(struct pipes_struct *p,
1767                              struct netr_LogonSamLogon *r)
1768 {
1769         NTSTATUS status;
1770         struct netr_LogonSamLogonWithFlags r2;
1771         uint32_t flags = 0;
1772
1773         r2.in.server_name               = r->in.server_name;
1774         r2.in.computer_name             = r->in.computer_name;
1775         r2.in.credential                = r->in.credential;
1776         r2.in.logon_level               = r->in.logon_level;
1777         r2.in.logon                     = r->in.logon;
1778         r2.in.validation_level          = r->in.validation_level;
1779         r2.in.return_authenticator      = r->in.return_authenticator;
1780         r2.in.flags                     = &flags;
1781         r2.out.validation               = r->out.validation;
1782         r2.out.authoritative            = r->out.authoritative;
1783         r2.out.flags                    = &flags;
1784         r2.out.return_authenticator     = r->out.return_authenticator;
1785
1786         status = _netr_LogonSamLogonWithFlags(p, &r2);
1787
1788         return status;
1789 }
1790
1791 /*************************************************************************
1792  _netr_LogonSamLogonEx
1793  - no credential chaining. Map into net sam logon.
1794  *************************************************************************/
1795
1796 NTSTATUS _netr_LogonSamLogonEx(struct pipes_struct *p,
1797                                struct netr_LogonSamLogonEx *r)
1798 {
1799         NTSTATUS status;
1800         struct netlogon_creds_CredentialState *creds = NULL;
1801         struct loadparm_context *lp_ctx;
1802
1803         *r->out.authoritative = true;
1804
1805         status = _netr_LogonSamLogon_check(r);
1806         if (!NT_STATUS_IS_OK(status)) {
1807                 return status;
1808         }
1809
1810         /* Only allow this if the pipe is protected. */
1811         if (p->auth.auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
1812                 DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n",
1813                         get_remote_machine_name() ));
1814                 return NT_STATUS_INVALID_PARAMETER;
1815         }
1816
1817         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
1818         if (lp_ctx == NULL) {
1819                 DEBUG(0, ("loadparm_init_s3 failed\n"));
1820                 return NT_STATUS_INTERNAL_ERROR;
1821         }
1822
1823         become_root();
1824         status = schannel_get_creds_state(p->mem_ctx, lp_ctx,
1825                                           r->in.computer_name, &creds);
1826         unbecome_root();
1827         talloc_unlink(p->mem_ctx, lp_ctx);
1828
1829         if (!NT_STATUS_IS_OK(status)) {
1830                 return status;
1831         }
1832
1833         status = _netr_LogonSamLogon_base(p, r, creds);
1834         TALLOC_FREE(creds);
1835
1836         return status;
1837 }
1838
1839 /*************************************************************************
1840  _ds_enum_dom_trusts
1841  *************************************************************************/
1842 #if 0   /* JERRY -- not correct */
1843  NTSTATUS _ds_enum_dom_trusts(struct pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
1844                              DS_R_ENUM_DOM_TRUSTS *r_u)
1845 {
1846         NTSTATUS status = NT_STATUS_OK;
1847
1848         /* TODO: According to MSDN, the can only be executed against a
1849            DC or domain member running Windows 2000 or later.  Need
1850            to test against a standalone 2k server and see what it
1851            does.  A windows 2000 DC includes its own domain in the
1852            list.  --jerry */
1853
1854         return status;
1855 }
1856 #endif  /* JERRY */
1857
1858
1859 /****************************************************************
1860 ****************************************************************/
1861
1862 WERROR _netr_LogonUasLogon(struct pipes_struct *p,
1863                            struct netr_LogonUasLogon *r)
1864 {
1865         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1866         return WERR_NOT_SUPPORTED;
1867 }
1868
1869 /****************************************************************
1870 ****************************************************************/
1871
1872 WERROR _netr_LogonUasLogoff(struct pipes_struct *p,
1873                             struct netr_LogonUasLogoff *r)
1874 {
1875         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1876         return WERR_NOT_SUPPORTED;
1877 }
1878
1879 /****************************************************************
1880 ****************************************************************/
1881
1882 NTSTATUS _netr_DatabaseDeltas(struct pipes_struct *p,
1883                               struct netr_DatabaseDeltas *r)
1884 {
1885         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1886         return NT_STATUS_NOT_IMPLEMENTED;
1887 }
1888
1889 /****************************************************************
1890 ****************************************************************/
1891
1892 NTSTATUS _netr_DatabaseSync(struct pipes_struct *p,
1893                             struct netr_DatabaseSync *r)
1894 {
1895         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1896         return NT_STATUS_NOT_IMPLEMENTED;
1897 }
1898
1899 /****************************************************************
1900 ****************************************************************/
1901
1902 NTSTATUS _netr_AccountDeltas(struct pipes_struct *p,
1903                              struct netr_AccountDeltas *r)
1904 {
1905         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1906         return NT_STATUS_NOT_IMPLEMENTED;
1907 }
1908
1909 /****************************************************************
1910 ****************************************************************/
1911
1912 NTSTATUS _netr_AccountSync(struct pipes_struct *p,
1913                            struct netr_AccountSync *r)
1914 {
1915         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
1916         return NT_STATUS_NOT_IMPLEMENTED;
1917 }
1918
1919 /****************************************************************
1920 ****************************************************************/
1921
1922 static bool wb_getdcname(TALLOC_CTX *mem_ctx,
1923                          const char *domain,
1924                          const char **dcname,
1925                          uint32_t flags,
1926                          WERROR *werr)
1927 {
1928         wbcErr result;
1929         struct wbcDomainControllerInfo *dc_info = NULL;
1930
1931         result = wbcLookupDomainController(domain,
1932                                            flags,
1933                                            &dc_info);
1934         switch (result) {
1935         case WBC_ERR_SUCCESS:
1936                 break;
1937         case WBC_ERR_WINBIND_NOT_AVAILABLE:
1938                 return false;
1939         case WBC_ERR_DOMAIN_NOT_FOUND:
1940                 *werr = WERR_NO_SUCH_DOMAIN;
1941                 return true;
1942         default:
1943                 *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1944                 return true;
1945         }
1946
1947         *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
1948         wbcFreeMemory(dc_info);
1949         if (!*dcname) {
1950                 *werr = WERR_NOMEM;
1951                 return false;
1952         }
1953
1954         *werr = WERR_OK;
1955
1956         return true;
1957 }
1958
1959 /****************************************************************
1960  _netr_GetDcName
1961 ****************************************************************/
1962
1963 WERROR _netr_GetDcName(struct pipes_struct *p,
1964                        struct netr_GetDcName *r)
1965 {
1966         NTSTATUS status;
1967         WERROR werr;
1968         uint32_t flags;
1969         struct netr_DsRGetDCNameInfo *info;
1970         bool ret;
1971
1972         ret = wb_getdcname(p->mem_ctx,
1973                            r->in.domainname,
1974                            r->out.dcname,
1975                            WBC_LOOKUP_DC_IS_FLAT_NAME |
1976                            WBC_LOOKUP_DC_RETURN_FLAT_NAME |
1977                            WBC_LOOKUP_DC_PDC_REQUIRED,
1978                            &werr);
1979         if (ret == true) {
1980                 return werr;
1981         }
1982
1983         flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
1984
1985         status = dsgetdcname(p->mem_ctx,
1986                              p->msg_ctx,
1987                              r->in.domainname,
1988                              NULL,
1989                              NULL,
1990                              flags,
1991                              &info);
1992         if (!NT_STATUS_IS_OK(status)) {
1993                 return ntstatus_to_werror(status);
1994         }
1995
1996         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
1997         talloc_free(info);
1998         if (!*r->out.dcname) {
1999                 return WERR_NOMEM;
2000         }
2001
2002         return WERR_OK;
2003 }
2004
2005 /****************************************************************
2006  _netr_GetAnyDCName
2007 ****************************************************************/
2008
2009 WERROR _netr_GetAnyDCName(struct pipes_struct *p,
2010                           struct netr_GetAnyDCName *r)
2011 {
2012         NTSTATUS status;
2013         WERROR werr;
2014         uint32_t flags;
2015         struct netr_DsRGetDCNameInfo *info;
2016         bool ret;
2017
2018         ret = wb_getdcname(p->mem_ctx,
2019                            r->in.domainname,
2020                            r->out.dcname,
2021                            WBC_LOOKUP_DC_IS_FLAT_NAME |
2022                            WBC_LOOKUP_DC_RETURN_FLAT_NAME,
2023                            &werr);
2024         if (ret == true) {
2025                 return werr;
2026         }
2027
2028         flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
2029
2030         status = dsgetdcname(p->mem_ctx,
2031                              p->msg_ctx,
2032                              r->in.domainname,
2033                              NULL,
2034                              NULL,
2035                              flags,
2036                              &info);
2037         if (!NT_STATUS_IS_OK(status)) {
2038                 return ntstatus_to_werror(status);
2039         }
2040
2041         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
2042         talloc_free(info);
2043         if (!*r->out.dcname) {
2044                 return WERR_NOMEM;
2045         }
2046
2047         return WERR_OK;
2048 }
2049
2050 /****************************************************************
2051 ****************************************************************/
2052
2053 NTSTATUS _netr_DatabaseSync2(struct pipes_struct *p,
2054                              struct netr_DatabaseSync2 *r)
2055 {
2056         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2057         return NT_STATUS_NOT_IMPLEMENTED;
2058 }
2059
2060 /****************************************************************
2061 ****************************************************************/
2062
2063 NTSTATUS _netr_DatabaseRedo(struct pipes_struct *p,
2064                             struct netr_DatabaseRedo *r)
2065 {
2066         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2067         return NT_STATUS_NOT_IMPLEMENTED;
2068 }
2069
2070 /****************************************************************
2071 ****************************************************************/
2072
2073 WERROR _netr_DsRGetDCName(struct pipes_struct *p,
2074                           struct netr_DsRGetDCName *r)
2075 {
2076         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2077         return WERR_NOT_SUPPORTED;
2078 }
2079
2080 /****************************************************************
2081 ****************************************************************/
2082
2083 NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
2084                                     struct netr_LogonGetCapabilities *r)
2085 {
2086         struct netlogon_creds_CredentialState *creds;
2087         NTSTATUS status;
2088
2089         become_root();
2090         status = netr_creds_server_step_check(p, p->mem_ctx,
2091                                               r->in.computer_name,
2092                                               r->in.credential,
2093                                               r->out.return_authenticator,
2094                                               &creds);
2095         unbecome_root();
2096         if (!NT_STATUS_IS_OK(status)) {
2097                 return status;
2098         }
2099
2100         if (r->in.query_level != 1) {
2101                 return NT_STATUS_NOT_SUPPORTED;
2102         }
2103
2104         r->out.capabilities->server_capabilities = creds->negotiate_flags;
2105
2106         return NT_STATUS_OK;
2107 }
2108
2109 /****************************************************************
2110 ****************************************************************/
2111
2112 WERROR _netr_NETRLOGONSETSERVICEBITS(struct pipes_struct *p,
2113                                      struct netr_NETRLOGONSETSERVICEBITS *r)
2114 {
2115         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2116         return WERR_NOT_SUPPORTED;
2117 }
2118
2119 /****************************************************************
2120 ****************************************************************/
2121
2122 WERROR _netr_LogonGetTrustRid(struct pipes_struct *p,
2123                               struct netr_LogonGetTrustRid *r)
2124 {
2125         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2126         return WERR_NOT_SUPPORTED;
2127 }
2128
2129 /****************************************************************
2130 ****************************************************************/
2131
2132 WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(struct pipes_struct *p,
2133                                           struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
2134 {
2135         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2136         return WERR_NOT_SUPPORTED;
2137 }
2138
2139 /****************************************************************
2140 ****************************************************************/
2141
2142 WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(struct pipes_struct *p,
2143                                           struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
2144 {
2145         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2146         return WERR_NOT_SUPPORTED;
2147 }
2148
2149 /****************************************************************
2150 ****************************************************************/
2151
2152 WERROR _netr_DsRGetDCNameEx(struct pipes_struct *p,
2153                             struct netr_DsRGetDCNameEx *r)
2154 {
2155         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2156         return WERR_NOT_SUPPORTED;
2157 }
2158
2159 /****************************************************************
2160 ****************************************************************/
2161
2162 WERROR _netr_DsRGetSiteName(struct pipes_struct *p,
2163                             struct netr_DsRGetSiteName *r)
2164 {
2165         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2166         return WERR_NOT_SUPPORTED;
2167 }
2168
2169 /****************************************************************
2170 ****************************************************************/
2171
2172 NTSTATUS _netr_LogonGetDomainInfo(struct pipes_struct *p,
2173                                   struct netr_LogonGetDomainInfo *r)
2174 {
2175         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2176         return NT_STATUS_NOT_IMPLEMENTED;
2177 }
2178
2179 /****************************************************************
2180 ****************************************************************/
2181
2182 WERROR _netr_ServerPasswordGet(struct pipes_struct *p,
2183                                struct netr_ServerPasswordGet *r)
2184 {
2185         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2186         return WERR_NOT_SUPPORTED;
2187 }
2188
2189 /****************************************************************
2190 ****************************************************************/
2191
2192 WERROR _netr_NETRLOGONSENDTOSAM(struct pipes_struct *p,
2193                                 struct netr_NETRLOGONSENDTOSAM *r)
2194 {
2195         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2196         return WERR_NOT_SUPPORTED;
2197 }
2198
2199 /****************************************************************
2200 ****************************************************************/
2201
2202 WERROR _netr_DsRAddressToSitenamesW(struct pipes_struct *p,
2203                                     struct netr_DsRAddressToSitenamesW *r)
2204 {
2205         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2206         return WERR_NOT_SUPPORTED;
2207 }
2208
2209 /****************************************************************
2210 ****************************************************************/
2211
2212 WERROR _netr_DsRGetDCNameEx2(struct pipes_struct *p,
2213                              struct netr_DsRGetDCNameEx2 *r)
2214 {
2215         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2216         return WERR_NOT_SUPPORTED;
2217 }
2218
2219 /****************************************************************
2220 ****************************************************************/
2221
2222 WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(struct pipes_struct *p,
2223                                                  struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
2224 {
2225         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2226         return WERR_NOT_SUPPORTED;
2227 }
2228
2229 /****************************************************************
2230 ****************************************************************/
2231
2232 WERROR _netr_NetrEnumerateTrustedDomainsEx(struct pipes_struct *p,
2233                                            struct netr_NetrEnumerateTrustedDomainsEx *r)
2234 {
2235         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2236         return WERR_NOT_SUPPORTED;
2237 }
2238
2239 /****************************************************************
2240 ****************************************************************/
2241
2242 WERROR _netr_DsRAddressToSitenamesExW(struct pipes_struct *p,
2243                                       struct netr_DsRAddressToSitenamesExW *r)
2244 {
2245         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2246         return WERR_NOT_SUPPORTED;
2247 }
2248
2249 /****************************************************************
2250 ****************************************************************/
2251
2252 WERROR _netr_DsrGetDcSiteCoverageW(struct pipes_struct *p,
2253                                    struct netr_DsrGetDcSiteCoverageW *r)
2254 {
2255         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2256         return WERR_NOT_SUPPORTED;
2257 }
2258
2259 /****************************************************************
2260 ****************************************************************/
2261
2262 WERROR _netr_DsrEnumerateDomainTrusts(struct pipes_struct *p,
2263                                       struct netr_DsrEnumerateDomainTrusts *r)
2264 {
2265         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2266         return WERR_NOT_SUPPORTED;
2267 }
2268
2269 /****************************************************************
2270 ****************************************************************/
2271
2272 WERROR _netr_DsrDeregisterDNSHostRecords(struct pipes_struct *p,
2273                                          struct netr_DsrDeregisterDNSHostRecords *r)
2274 {
2275         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2276         return WERR_NOT_SUPPORTED;
2277 }
2278
2279 /****************************************************************
2280 ****************************************************************/
2281
2282 NTSTATUS _netr_ServerTrustPasswordsGet(struct pipes_struct *p,
2283                                        struct netr_ServerTrustPasswordsGet *r)
2284 {
2285         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2286         return NT_STATUS_NOT_IMPLEMENTED;
2287 }
2288
2289 /****************************************************************
2290 ****************************************************************/
2291
2292 static NTSTATUS fill_forest_trust_array(TALLOC_CTX *mem_ctx,
2293                                         struct lsa_ForestTrustInformation *info)
2294 {
2295         struct lsa_ForestTrustRecord *e;
2296         struct pdb_domain_info *dom_info;
2297         struct lsa_ForestTrustDomainInfo *domain_info;
2298         char **upn_suffixes = NULL;
2299         uint32_t num_suffixes = 0;
2300         uint32_t i = 0;
2301         NTSTATUS status;
2302
2303         dom_info = pdb_get_domain_info(mem_ctx);
2304         if (dom_info == NULL) {
2305                 return NT_STATUS_NO_MEMORY;
2306         }
2307
2308         info->count = 2;
2309
2310         become_root();
2311         status = pdb_enum_upn_suffixes(info, &num_suffixes, &upn_suffixes);
2312         unbecome_root();
2313         if (NT_STATUS_IS_OK(status) && (num_suffixes > 0)) {
2314                 info->count += num_suffixes;
2315         }
2316
2317         info->entries = talloc_array(info, struct lsa_ForestTrustRecord *, info->count);
2318         if (info->entries == NULL) {
2319                 return NT_STATUS_NO_MEMORY;
2320         }
2321
2322         e = talloc(info, struct lsa_ForestTrustRecord);
2323         if (e == NULL) {
2324                 return NT_STATUS_NO_MEMORY;
2325         }
2326
2327         e->flags = 0;
2328         e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2329         e->time = 0; /* so far always 0 in trces. */
2330         e->forest_trust_data.top_level_name.string = talloc_steal(info,
2331                                                                   dom_info->dns_forest);
2332
2333         info->entries[0] = e;
2334
2335         if (num_suffixes > 0) {
2336                 for (i = 0; i < num_suffixes ; i++) {
2337                         e = talloc(info, struct lsa_ForestTrustRecord);
2338                         if (e == NULL) {
2339                                 return NT_STATUS_NO_MEMORY;
2340                         }
2341
2342                         e->flags = 0;
2343                         e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
2344                         e->time = 0; /* so far always 0 in traces. */
2345                         e->forest_trust_data.top_level_name.string = upn_suffixes[i];
2346                         info->entries[1 + i] = e;
2347                 }
2348         }
2349
2350         e = talloc(info, struct lsa_ForestTrustRecord);
2351         if (e == NULL) {
2352                 return NT_STATUS_NO_MEMORY;
2353         }
2354
2355         /* TODO: check if disabled and set flags accordingly */
2356         e->flags = 0;
2357         e->type = LSA_FOREST_TRUST_DOMAIN_INFO;
2358         e->time = 0; /* so far always 0 in traces. */
2359
2360         domain_info = &e->forest_trust_data.domain_info;
2361         domain_info->domain_sid = dom_sid_dup(info, &dom_info->sid);
2362
2363         domain_info->dns_domain_name.string = talloc_steal(info,
2364                                                            dom_info->dns_domain);
2365         domain_info->netbios_domain_name.string = talloc_steal(info,
2366                                                                dom_info->name);
2367
2368         info->entries[info->count - 1] = e;
2369
2370         return NT_STATUS_OK;
2371 }
2372
2373 /****************************************************************
2374 ****************************************************************/
2375
2376 WERROR _netr_DsRGetForestTrustInformation(struct pipes_struct *p,
2377                                           struct netr_DsRGetForestTrustInformation *r)
2378 {
2379         NTSTATUS status;
2380         struct lsa_ForestTrustInformation *info, **info_ptr;
2381
2382         if (!(p->pipe_bound && (p->auth.auth_type != DCERPC_AUTH_TYPE_NONE)
2383                        && (p->auth.auth_level != DCERPC_AUTH_LEVEL_NONE))) {
2384                 p->fault_state = DCERPC_FAULT_ACCESS_DENIED;
2385                 return WERR_ACCESS_DENIED;
2386         }
2387
2388         if (r->in.flags & (~DS_GFTI_UPDATE_TDO)) {
2389                 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2390                 return WERR_INVALID_FLAGS;
2391         }
2392
2393         if ((r->in.flags & DS_GFTI_UPDATE_TDO) && (lp_server_role() != ROLE_DOMAIN_PDC)) {
2394                 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2395                 return WERR_NERR_NOTPRIMARY;
2396         }
2397
2398         if ((r->in.trusted_domain_name == NULL) && (r->in.flags & DS_GFTI_UPDATE_TDO)) {
2399                 p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2400                 return WERR_INVALID_PARAMETER;
2401         }
2402
2403         /* retrieve forest trust information and stop further processing */
2404         if (r->in.trusted_domain_name == NULL) {
2405                 info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2406                 if (info_ptr == NULL) {
2407                         p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2408                         return WERR_NOMEM;
2409                 }
2410                 info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2411                 if (info == NULL) {
2412                         p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2413                         return WERR_NOMEM;
2414                 }
2415
2416                 /* Fill forest trust information and expand UPN suffixes list */
2417                 status = fill_forest_trust_array(p->mem_ctx, info);
2418                 if (!NT_STATUS_IS_OK(status)) {
2419                         p->fault_state = DCERPC_FAULT_CANT_PERFORM;
2420                         return WERR_NOMEM;
2421                 }
2422
2423                 *info_ptr = info;
2424                 r->out.forest_trust_info = info_ptr;
2425
2426                 return WERR_OK;
2427
2428         }
2429
2430         /* TODO: implement remaining parts of DsrGetForestTrustInformation (opnum 43)
2431          *       when trusted_domain_name is not NULL */
2432
2433         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2434         return WERR_NOT_SUPPORTED;
2435 }
2436
2437 /****************************************************************
2438  _netr_GetForestTrustInformation
2439 ****************************************************************/
2440
2441 NTSTATUS _netr_GetForestTrustInformation(struct pipes_struct *p,
2442                                          struct netr_GetForestTrustInformation *r)
2443 {
2444         NTSTATUS status;
2445         struct netlogon_creds_CredentialState *creds;
2446         struct lsa_ForestTrustInformation *info, **info_ptr;
2447         struct loadparm_context *lp_ctx;
2448
2449         /* TODO: check server name */
2450
2451         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
2452         if (lp_ctx == NULL) {
2453                 DEBUG(0, ("loadparm_init_s3 failed\n"));
2454                 return NT_STATUS_INTERNAL_ERROR;
2455         }
2456
2457         status = schannel_check_creds_state(p->mem_ctx, lp_ctx,
2458                                             r->in.computer_name,
2459                                             r->in.credential,
2460                                             r->out.return_authenticator,
2461                                             &creds);
2462         talloc_unlink(p->mem_ctx, lp_ctx);
2463         if (!NT_STATUS_IS_OK(status)) {
2464                 return status;
2465         }
2466
2467         if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2468             (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2469                 return NT_STATUS_NOT_IMPLEMENTED;
2470         }
2471
2472         info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *);
2473         if (!info_ptr) {
2474                 return NT_STATUS_NO_MEMORY;
2475         }
2476         info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation);
2477         if (!info) {
2478                 return NT_STATUS_NO_MEMORY;
2479         }
2480
2481         /* Fill forest trust information, do expand UPN suffixes list */
2482         status = fill_forest_trust_array(p->mem_ctx, info);
2483         if (!NT_STATUS_IS_OK(status)) {
2484                 return status;
2485         }
2486
2487         *info_ptr = info;
2488         r->out.forest_trust_info = info_ptr;
2489
2490         return NT_STATUS_OK;
2491 }
2492
2493 /****************************************************************
2494 ****************************************************************/
2495
2496 static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
2497                                             const DATA_BLOB *trustAuth_blob,
2498                                             struct netlogon_creds_CredentialState *creds,
2499                                             struct samr_Password *current_pw_enc,
2500                                             struct samr_Password *previous_pw_enc)
2501 {
2502         enum ndr_err_code ndr_err;
2503         struct trustAuthInOutBlob trustAuth;
2504
2505         ndr_err = ndr_pull_struct_blob_all(trustAuth_blob, mem_ctx, &trustAuth,
2506                                            (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2507         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2508                 return NT_STATUS_UNSUCCESSFUL;
2509         }
2510
2511         if (trustAuth.count != 0 && trustAuth.current.count != 0 &&
2512             trustAuth.current.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2513                 mdfour(current_pw_enc->hash,
2514                        trustAuth.current.array[0].AuthInfo.clear.password,
2515                        trustAuth.current.array[0].AuthInfo.clear.size);
2516                 netlogon_creds_des_encrypt(creds, current_pw_enc);
2517         } else {
2518                 return NT_STATUS_UNSUCCESSFUL;
2519         }
2520
2521
2522         if (trustAuth.previous.count != 0 &&
2523             trustAuth.previous.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) {
2524                 mdfour(previous_pw_enc->hash,
2525                        trustAuth.previous.array[0].AuthInfo.clear.password,
2526                        trustAuth.previous.array[0].AuthInfo.clear.size);
2527                 netlogon_creds_des_encrypt(creds, previous_pw_enc);
2528         } else {
2529                 ZERO_STRUCTP(previous_pw_enc);
2530         }
2531
2532         return NT_STATUS_OK;
2533 }
2534
2535 /****************************************************************
2536  _netr_ServerGetTrustInfo
2537 ****************************************************************/
2538
2539 NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
2540                                   struct netr_ServerGetTrustInfo *r)
2541 {
2542         NTSTATUS status;
2543         struct netlogon_creds_CredentialState *creds;
2544         char *account_name;
2545         size_t account_name_last;
2546         bool trusted;
2547         struct netr_TrustInfo *trust_info;
2548         struct pdb_trusted_domain *td;
2549         struct loadparm_context *lp_ctx;
2550
2551         lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers());
2552         if (lp_ctx == NULL) {
2553                 DEBUG(0, ("loadparm_init_s3 failed\n"));
2554                 return NT_STATUS_INTERNAL_ERROR;
2555         }
2556
2557         /* TODO: check server name */
2558
2559         status = schannel_check_creds_state(p->mem_ctx, lp_ctx,
2560                                             r->in.computer_name,
2561                                             r->in.credential,
2562                                             r->out.return_authenticator,
2563                                             &creds);
2564         talloc_unlink(p->mem_ctx, lp_ctx);
2565         if (!NT_STATUS_IS_OK(status)) {
2566                 return status;
2567         }
2568
2569         account_name = talloc_strdup(p->mem_ctx, r->in.account_name);
2570         if (account_name == NULL) {
2571                 return NT_STATUS_NO_MEMORY;
2572         }
2573
2574         account_name_last = strlen(account_name);
2575         if (account_name_last == 0) {
2576                 return NT_STATUS_INVALID_PARAMETER;
2577         }
2578         account_name_last--;
2579         if (account_name[account_name_last] == '.') {
2580                 account_name[account_name_last] = '\0';
2581         }
2582
2583         if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) &&
2584             (creds->secure_channel_type != SEC_CHAN_DOMAIN)) {
2585                 trusted = false;
2586         } else {
2587                 trusted = true;
2588         }
2589
2590
2591         if (trusted) {
2592                 account_name_last = strlen(account_name);
2593                 if (account_name_last == 0) {
2594                         return NT_STATUS_INVALID_PARAMETER;
2595                 }
2596                 account_name_last--;
2597                 if (account_name[account_name_last] == '$') {
2598                         account_name[account_name_last] = '\0';
2599                 }
2600
2601                 status = pdb_get_trusted_domain(p->mem_ctx, account_name, &td);
2602                 if (!NT_STATUS_IS_OK(status)) {
2603                         return status;
2604                 }
2605
2606                 if (r->out.trust_info != NULL) {
2607                         trust_info = talloc_zero(p->mem_ctx, struct netr_TrustInfo);
2608                         if (trust_info == NULL) {
2609                                 return NT_STATUS_NO_MEMORY;
2610                         }
2611                         trust_info->count = 1;
2612
2613                         trust_info->data = talloc_array(trust_info, uint32_t, 1);
2614                         if (trust_info->data == NULL) {
2615                                 return NT_STATUS_NO_MEMORY;
2616                         }
2617                         trust_info->data[0] = td->trust_attributes;
2618
2619                         *r->out.trust_info = trust_info;
2620                 }
2621
2622                 if (td->trust_auth_incoming.data == NULL) {
2623                         return NT_STATUS_INVALID_PARAMETER;
2624                 }
2625
2626                 status = get_password_from_trustAuth(p->mem_ctx,
2627                                                      &td->trust_auth_incoming,
2628                                                      creds,
2629                                                      r->out.new_owf_password,
2630                                                      r->out.old_owf_password);
2631
2632                 if (!NT_STATUS_IS_OK(status)) {
2633                         return status;
2634                 }
2635
2636         } else {
2637 /* TODO: look for machine password */
2638                 ZERO_STRUCTP(r->out.new_owf_password);
2639                 ZERO_STRUCTP(r->out.old_owf_password);
2640
2641                 return NT_STATUS_NOT_IMPLEMENTED;
2642         }
2643
2644         return NT_STATUS_OK;
2645 }
2646
2647 /****************************************************************
2648 ****************************************************************/
2649
2650 NTSTATUS _netr_Unused47(struct pipes_struct *p,
2651                         struct netr_Unused47 *r)
2652 {
2653         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2654         return NT_STATUS_NOT_IMPLEMENTED;
2655 }
2656
2657 /****************************************************************
2658 ****************************************************************/
2659
2660 NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p,
2661                                                  struct netr_DsrUpdateReadOnlyServerDnsRecords *r)
2662 {
2663         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
2664         return NT_STATUS_NOT_IMPLEMENTED;
2665 }