source3/rpc_server/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 "../libcli/auth/schannel.h"
  29 #include "../librpc/gen_ndr/srv_netlogon.h"
  30
  31 extern userdom_struct current_user_info;
  32
  33 #undef DBGC_CLASS
  34 #define DBGC_CLASS DBGC_RPC_SRV
  35
  36 struct netlogon_server_pipe_state {
  37         struct netr_Credential client_challenge;
  38         struct netr_Credential server_challenge;
  39 };
  40
  41 /*************************************************************************
  42  _netr_LogonControl
  43  *************************************************************************/
  44
  45 WERROR _netr_LogonControl(pipes_struct *p,
  46                           struct netr_LogonControl *r)
  47 {
  48         struct netr_LogonControl2Ex l;
  49
  50         switch (r->in.level) {
  51         case 1:
  52                 break;
  53         case 2:
  54                 return WERR_NOT_SUPPORTED;
  55         default:
  56                 return WERR_UNKNOWN_LEVEL;
  57         }
  58
  59         l.in.logon_server       = r->in.logon_server;
  60         l.in.function_code      = r->in.function_code;
  61         l.in.level              = r->in.level;
  62         l.in.data               = NULL;
  63         l.out.query             = r->out.query;
  64
  65         return _netr_LogonControl2Ex(p, &l);
  66 }
  67
  68 /****************************************************************************
  69 Send a message to smbd to do a sam synchronisation
  70 **************************************************************************/
  71
  72 static void send_sync_message(void)
  73 {
  74         DEBUG(3, ("sending sam synchronisation message\n"));
  75         message_send_all(smbd_messaging_context(), MSG_SMB_SAM_SYNC, NULL, 0,
  76                          NULL);
  77 }
  78
  79 /*************************************************************************
  80  _netr_LogonControl2
  81  *************************************************************************/
  82
  83 WERROR _netr_LogonControl2(pipes_struct *p,
  84                            struct netr_LogonControl2 *r)
  85 {
  86         struct netr_LogonControl2Ex l;
  87
  88         l.in.logon_server       = r->in.logon_server;
  89         l.in.function_code      = r->in.function_code;
  90         l.in.level              = r->in.level;
  91         l.in.data               = r->in.data;
  92         l.out.query             = r->out.query;
  93
  94         return _netr_LogonControl2Ex(p, &l);
  95 }
  96
  97 /*************************************************************************
  98  *************************************************************************/
  99
 100 static bool wb_change_trust_creds(const char *domain, WERROR *tc_status)
 101 {
 102         wbcErr result;
 103         struct wbcAuthErrorInfo *error = NULL;
 104
 105         result = wbcChangeTrustCredentials(domain, &error);
 106         switch (result) {
 107         case WBC_ERR_WINBIND_NOT_AVAILABLE:
 108                 return false;
 109         case WBC_ERR_DOMAIN_NOT_FOUND:
 110                 *tc_status = WERR_NO_SUCH_DOMAIN;
 111                 return true;
 112         case WBC_ERR_SUCCESS:
 113                 *tc_status = WERR_OK;
 114                 return true;
 115         default:
 116                 break;
 117         }
 118
 119         if (error && error->nt_status != 0) {
 120                 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
 121         } else {
 122                 *tc_status = WERR_TRUST_FAILURE;
 123         }
 124         wbcFreeMemory(error);
 125         return true;
 126 }
 127
 128 /*************************************************************************
 129  *************************************************************************/
 130
 131 static bool wb_check_trust_creds(const char *domain, WERROR *tc_status)
 132 {
 133         wbcErr result;
 134         struct wbcAuthErrorInfo *error = NULL;
 135
 136         result = wbcCheckTrustCredentials(domain, &error);
 137         switch (result) {
 138         case WBC_ERR_WINBIND_NOT_AVAILABLE:
 139                 return false;
 140         case WBC_ERR_DOMAIN_NOT_FOUND:
 141                 *tc_status = WERR_NO_SUCH_DOMAIN;
 142                 return true;
 143         case WBC_ERR_SUCCESS:
 144                 *tc_status = WERR_OK;
 145                 return true;
 146         default:
 147                 break;
 148         }
 149
 150         if (error && error->nt_status != 0) {
 151                 *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status));
 152         } else {
 153                 *tc_status = WERR_TRUST_FAILURE;
 154         }
 155         wbcFreeMemory(error);
 156         return true;
 157 }
 158
 159 /****************************************************************
 160  _netr_LogonControl2Ex
 161 ****************************************************************/
 162
 163 WERROR _netr_LogonControl2Ex(pipes_struct *p,
 164                              struct netr_LogonControl2Ex *r)
 165 {
 166         uint32_t flags = 0x0;
 167         WERROR pdc_connection_status = WERR_OK;
 168         uint32_t logon_attempts = 0x0;
 169         WERROR tc_status;
 170         fstring dc_name2;
 171         const char *dc_name = NULL;
 172         struct sockaddr_storage dc_ss;
 173         const char *domain = NULL;
 174         struct netr_NETLOGON_INFO_1 *info1;
 175         struct netr_NETLOGON_INFO_2 *info2;
 176         struct netr_NETLOGON_INFO_3 *info3;
 177         struct netr_NETLOGON_INFO_4 *info4;
 178         const char *fn;
 179         uint32_t acct_ctrl;
 180
 181         switch (p->hdr_req.opnum) {
 182         case NDR_NETR_LOGONCONTROL:
 183                 fn = "_netr_LogonControl";
 184                 break;
 185         case NDR_NETR_LOGONCONTROL2:
 186                 fn = "_netr_LogonControl2";
 187                 break;
 188         case NDR_NETR_LOGONCONTROL2EX:
 189                 fn = "_netr_LogonControl2Ex";
 190                 break;
 191         default:
 192                 return WERR_INVALID_PARAM;
 193         }
 194
 195         acct_ctrl = pdb_get_acct_ctrl(p->server_info->sam_account);
 196
 197         switch (r->in.function_code) {
 198         case NETLOGON_CONTROL_TC_VERIFY:
 199         case NETLOGON_CONTROL_CHANGE_PASSWORD:
 200         case NETLOGON_CONTROL_REDISCOVER:
 201                 if ((geteuid() != sec_initial_uid()) &&
 202                     !nt_token_check_domain_rid(p->server_info->ptok, DOMAIN_RID_ADMINS) &&
 203                     !nt_token_check_sid(&global_sid_Builtin_Administrators, p->server_info->ptok) &&
 204                     !(acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST))) {
 205                         return WERR_ACCESS_DENIED;
 206                 }
 207                 break;
 208         default:
 209                 break;
 210         }
 211
 212         tc_status = WERR_NO_SUCH_DOMAIN;
 213
 214         switch (r->in.function_code) {
 215         case NETLOGON_CONTROL_QUERY:
 216                 tc_status = WERR_OK;
 217                 break;
 218         case NETLOGON_CONTROL_REPLICATE:
 219         case NETLOGON_CONTROL_SYNCHRONIZE:
 220         case NETLOGON_CONTROL_PDC_REPLICATE:
 221         case NETLOGON_CONTROL_BACKUP_CHANGE_LOG:
 222         case NETLOGON_CONTROL_BREAKPOINT:
 223                 if (acct_ctrl & ACB_NORMAL) {
 224                         return WERR_NOT_SUPPORTED;
 225                 } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) {
 226                         return WERR_ACCESS_DENIED;
 227                 } else {
 228                         return WERR_ACCESS_DENIED;
 229                 }
 230         case NETLOGON_CONTROL_TRUNCATE_LOG:
 231                 if (acct_ctrl & ACB_NORMAL) {
 232                         break;
 233                 } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) {
 234                         return WERR_ACCESS_DENIED;
 235                 } else {
 236                         return WERR_ACCESS_DENIED;
 237                 }
 238
 239         case NETLOGON_CONTROL_TRANSPORT_NOTIFY:
 240         case NETLOGON_CONTROL_FORCE_DNS_REG:
 241         case NETLOGON_CONTROL_QUERY_DNS_REG:
 242                 return WERR_NOT_SUPPORTED;
 243         case NETLOGON_CONTROL_FIND_USER:
 244                 if (!r->in.data || !r->in.data->user) {
 245                         return WERR_NOT_SUPPORTED;
 246                 }
 247                 break;
 248         case NETLOGON_CONTROL_SET_DBFLAG:
 249                 if (!r->in.data) {
 250                         return WERR_NOT_SUPPORTED;
 251                 }
 252                 break;
 253         case NETLOGON_CONTROL_TC_VERIFY:
 254                 if (!r->in.data || !r->in.data->domain) {
 255                         return WERR_NOT_SUPPORTED;
 256                 }
 257
 258                 if (!wb_check_trust_creds(r->in.data->domain, &tc_status)) {
 259                         return WERR_NOT_SUPPORTED;
 260                 }
 261                 break;
 262         case NETLOGON_CONTROL_TC_QUERY:
 263                 if (!r->in.data || !r->in.data->domain) {
 264                         return WERR_NOT_SUPPORTED;
 265                 }
 266
 267                 domain = r->in.data->domain;
 268
 269                 if (!is_trusted_domain(domain)) {
 270                         break;
 271                 }
 272
 273                 if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) {
 274                         tc_status = WERR_NO_LOGON_SERVERS;
 275                         break;
 276                 }
 277
 278                 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
 279                 if (!dc_name) {
 280                         return WERR_NOMEM;
 281                 }
 282
 283                 tc_status = WERR_OK;
 284
 285                 break;
 286
 287         case NETLOGON_CONTROL_REDISCOVER:
 288                 if (!r->in.data || !r->in.data->domain) {
 289                         return WERR_NOT_SUPPORTED;
 290                 }
 291
 292                 domain = r->in.data->domain;
 293
 294                 if (!is_trusted_domain(domain)) {
 295                         break;
 296                 }
 297
 298                 if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) {
 299                         tc_status = WERR_NO_LOGON_SERVERS;
 300                         break;
 301                 }
 302
 303                 dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
 304                 if (!dc_name) {
 305                         return WERR_NOMEM;
 306                 }
 307
 308                 tc_status = WERR_OK;
 309
 310                 break;
 311
 312         case NETLOGON_CONTROL_CHANGE_PASSWORD:
 313                 if (!r->in.data || !r->in.data->domain) {
 314                         return WERR_NOT_SUPPORTED;
 315                 }
 316
 317                 if (!wb_change_trust_creds(r->in.data->domain, &tc_status)) {
 318                         return WERR_NOT_SUPPORTED;
 319                 }
 320                 break;
 321
 322         default:
 323                 /* no idea what this should be */
 324                 DEBUG(0,("%s: unimplemented function level [%d]\n",
 325                         fn, r->in.function_code));
 326                 return WERR_UNKNOWN_LEVEL;
 327         }
 328
 329         /* prepare the response */
 330
 331         switch (r->in.level) {
 332         case 1:
 333                 info1 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_1);
 334                 W_ERROR_HAVE_NO_MEMORY(info1);
 335
 336                 info1->flags                    = flags;
 337                 info1->pdc_connection_status    = pdc_connection_status;
 338
 339                 r->out.query->info1 = info1;
 340                 break;
 341         case 2:
 342                 info2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_2);
 343                 W_ERROR_HAVE_NO_MEMORY(info2);
 344
 345                 info2->flags                    = flags;
 346                 info2->pdc_connection_status    = pdc_connection_status;
 347                 info2->trusted_dc_name          = dc_name;
 348                 info2->tc_connection_status     = tc_status;
 349
 350                 r->out.query->info2 = info2;
 351                 break;
 352         case 3:
 353                 info3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_3);
 354                 W_ERROR_HAVE_NO_MEMORY(info3);
 355
 356                 info3->flags                    = flags;
 357                 info3->logon_attempts           = logon_attempts;
 358
 359                 r->out.query->info3 = info3;
 360                 break;
 361         case 4:
 362                 info4 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_4);
 363                 W_ERROR_HAVE_NO_MEMORY(info4);
 364
 365                 info4->trusted_dc_name          = dc_name;
 366                 info4->trusted_domain_name      = r->in.data->domain;
 367
 368                 r->out.query->info4 = info4;
 369                 break;
 370         default:
 371                 return WERR_UNKNOWN_LEVEL;
 372         }
 373
 374         if (lp_server_role() == ROLE_DOMAIN_BDC) {
 375                 send_sync_message();
 376         }
 377
 378         return WERR_OK;
 379 }
 380
 381 /*************************************************************************
 382  _netr_NetrEnumerateTrustedDomains
 383  *************************************************************************/
 384
 385 WERROR _netr_NetrEnumerateTrustedDomains(pipes_struct *p,
 386                                          struct netr_NetrEnumerateTrustedDomains *r)
 387 {
 388         NTSTATUS status;
 389         DATA_BLOB blob;
 390         struct trustdom_info **domains;
 391         uint32_t num_domains;
 392         const char **trusted_domains;
 393         int i;
 394
 395         DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
 396
 397         /* set up the Trusted Domain List response */
 398
 399         become_root();
 400         status = pdb_enum_trusteddoms(p->mem_ctx, &num_domains, &domains);
 401         unbecome_root();
 402
 403         if (!NT_STATUS_IS_OK(status)) {
 404                 return ntstatus_to_werror(status);
 405         }
 406
 407         trusted_domains = talloc_zero_array(p->mem_ctx, const char *, num_domains + 1);
 408         if (!trusted_domains) {
 409                 return WERR_NOMEM;
 410         }
 411
 412         for (i = 0; i < num_domains; i++) {
 413                 trusted_domains[i] = talloc_strdup(trusted_domains, domains[i]->name);
 414                 if (!trusted_domains[i]) {
 415                         TALLOC_FREE(trusted_domains);
 416                         return WERR_NOMEM;
 417                 }
 418         }
 419
 420         if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) {
 421                 TALLOC_FREE(trusted_domains);
 422                 return WERR_NOMEM;
 423         }
 424
 425         r->out.trusted_domains_blob->data = blob.data;
 426         r->out.trusted_domains_blob->length = blob.length;
 427
 428         DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
 429
 430         return WERR_OK;
 431 }
 432
 433 /******************************************************************
 434  gets a machine password entry.  checks access rights of the host.
 435  ******************************************************************/
 436
 437 static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
 438                           enum netr_SchannelType sec_chan_type, struct dom_sid *sid)
 439 {
 440         struct samu *sampass = NULL;
 441         const uint8 *pass;
 442         bool ret;
 443         uint32 acct_ctrl;
 444
 445 #if 0
 446         char addr[INET6_ADDRSTRLEN];
 447
 448     /*
 449      * Currently this code is redundent as we already have a filter
 450      * by hostname list. What this code really needs to do is to
 451      * get a hosts allowed/hosts denied list from the SAM database
 452      * on a per user basis, and make the access decision there.
 453      * I will leave this code here for now as a reminder to implement
 454      * this at a later date. JRA.
 455      */
 456
 457         if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
 458                         client_name(get_client_fd()),
 459                         client_addr(get_client_fd(),addr,sizeof(addr)))) {
 460                 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
 461                 return False;
 462         }
 463 #endif /* 0 */
 464
 465         if ( !(sampass = samu_new( NULL )) ) {
 466                 return NT_STATUS_NO_MEMORY;
 467         }
 468
 469         /* JRA. This is ok as it is only used for generating the challenge. */
 470         become_root();
 471         ret = pdb_getsampwnam(sampass, mach_acct);
 472         unbecome_root();
 473
 474         if (!ret) {
 475                 DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 476                 TALLOC_FREE(sampass);
 477                 return NT_STATUS_ACCESS_DENIED;
 478         }
 479
 480         acct_ctrl = pdb_get_acct_ctrl(sampass);
 481         if (acct_ctrl & ACB_DISABLED) {
 482                 DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
 483                 TALLOC_FREE(sampass);
 484                 return NT_STATUS_ACCOUNT_DISABLED;
 485         }
 486
 487         if (!(acct_ctrl & ACB_SVRTRUST) &&
 488             !(acct_ctrl & ACB_WSTRUST) &&
 489             !(acct_ctrl & ACB_DOMTRUST))
 490         {
 491                 DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
 492                 TALLOC_FREE(sampass);
 493                 return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 494         }
 495
 496         switch (sec_chan_type) {
 497                 case SEC_CHAN_BDC:
 498                         if (!(acct_ctrl & ACB_SVRTRUST)) {
 499                                 DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
 500                                          "but not a server trust account\n", mach_acct));
 501                                 TALLOC_FREE(sampass);
 502                                 return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 503                         }
 504                         break;
 505                 case SEC_CHAN_WKSTA:
 506                         if (!(acct_ctrl & ACB_WSTRUST)) {
 507                                 DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
 508                                          "but not a workstation trust account\n", mach_acct));
 509                                 TALLOC_FREE(sampass);
 510                                 return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 511                         }
 512                         break;
 513                 case SEC_CHAN_DOMAIN:
 514                         if (!(acct_ctrl & ACB_DOMTRUST)) {
 515                                 DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
 516                                          "but not a interdomain trust account\n", mach_acct));
 517                                 TALLOC_FREE(sampass);
 518                                 return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
 519                         }
 520                         break;
 521                 default:
 522                         break;
 523         }
 524
 525         if ((pass = pdb_get_nt_passwd(sampass)) == NULL) {
 526                 DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
 527                 TALLOC_FREE(sampass);
 528                 return NT_STATUS_LOGON_FAILURE;
 529         }
 530
 531         memcpy(md4pw->hash, pass, 16);
 532         dump_data(5, md4pw->hash, 16);
 533
 534         sid_copy(sid, pdb_get_user_sid(sampass));
 535
 536         TALLOC_FREE(sampass);
 537
 538         return NT_STATUS_OK;
 539
 540
 541 }
 542
 543 /*************************************************************************
 544  _netr_ServerReqChallenge
 545  *************************************************************************/
 546
 547 NTSTATUS _netr_ServerReqChallenge(pipes_struct *p,
 548                                   struct netr_ServerReqChallenge *r)
 549 {
 550         struct netlogon_server_pipe_state *pipe_state =
 551                 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
 552
 553         if (pipe_state) {
 554                 DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
 555                 talloc_free(pipe_state);
 556                 p->private_data = NULL;
 557         }
 558
 559         pipe_state = talloc(p, struct netlogon_server_pipe_state);
 560         NT_STATUS_HAVE_NO_MEMORY(pipe_state);
 561
 562         pipe_state->client_challenge = *r->in.credentials;
 563
 564         generate_random_buffer(pipe_state->server_challenge.data,
 565                                sizeof(pipe_state->server_challenge.data));
 566
 567         *r->out.return_credentials = pipe_state->server_challenge;
 568
 569         p->private_data = pipe_state;
 570
 571         return NT_STATUS_OK;
 572 }
 573
 574 /*************************************************************************
 575  _netr_ServerAuthenticate
 576  Create the initial credentials.
 577  *************************************************************************/
 578
 579 NTSTATUS _netr_ServerAuthenticate(pipes_struct *p,
 580                                   struct netr_ServerAuthenticate *r)
 581 {
 582         struct netr_ServerAuthenticate3 a;
 583         uint32_t negotiate_flags = 0;
 584         uint32_t rid;
 585
 586         a.in.server_name                = r->in.server_name;
 587         a.in.account_name               = r->in.account_name;
 588         a.in.secure_channel_type        = r->in.secure_channel_type;
 589         a.in.computer_name              = r->in.computer_name;
 590         a.in.credentials                = r->in.credentials;
 591         a.in.negotiate_flags            = &negotiate_flags;
 592
 593         a.out.return_credentials        = r->out.return_credentials;
 594         a.out.rid                       = &rid;
 595         a.out.negotiate_flags           = &negotiate_flags;
 596
 597         return _netr_ServerAuthenticate3(p, &a);
 598
 599 }
 600
 601 /*************************************************************************
 602  _netr_ServerAuthenticate3
 603  *************************************************************************/
 604
 605 NTSTATUS _netr_ServerAuthenticate3(pipes_struct *p,
 606                                    struct netr_ServerAuthenticate3 *r)
 607 {
 608         NTSTATUS status;
 609         uint32_t srv_flgs;
 610         /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
 611          * so use a copy to avoid destroying the client values. */
 612         uint32_t in_neg_flags = *r->in.negotiate_flags;
 613         const char *fn;
 614         struct dom_sid sid;
 615         struct samr_Password mach_pwd;
 616         struct netlogon_creds_CredentialState *creds;
 617         struct netlogon_server_pipe_state *pipe_state =
 618                 talloc_get_type(p->private_data, struct netlogon_server_pipe_state);
 619
 620         /* According to Microsoft (see bugid #6099)
 621          * Windows 7 looks at the negotiate_flags
 622          * returned in this structure *even if the
 623          * call fails with access denied* ! So in order
 624          * to allow Win7 to connect to a Samba NT style
 625          * PDC we set the flags before we know if it's
 626          * an error or not.
 627          */
 628
 629         /* 0x000001ff */
 630         srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
 631                    NETLOGON_NEG_PERSISTENT_SAMREPL |
 632                    NETLOGON_NEG_ARCFOUR |
 633                    NETLOGON_NEG_PROMOTION_COUNT |
 634                    NETLOGON_NEG_CHANGELOG_BDC |
 635                    NETLOGON_NEG_FULL_SYNC_REPL |
 636                    NETLOGON_NEG_MULTIPLE_SIDS |
 637                    NETLOGON_NEG_REDO |
 638                    NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
 639                    NETLOGON_NEG_PASSWORD_SET2;
 640
 641         /* Ensure we support strong (128-bit) keys. */
 642         if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
 643                 srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
 644         }
 645
 646         if (lp_server_schannel() != false) {
 647                 srv_flgs |= NETLOGON_NEG_SCHANNEL;
 648         }
 649
 650         switch (p->hdr_req.opnum) {
 651                 case NDR_NETR_SERVERAUTHENTICATE:
 652                         fn = "_netr_ServerAuthenticate";
 653                         break;
 654                 case NDR_NETR_SERVERAUTHENTICATE2:
 655                         fn = "_netr_ServerAuthenticate2";
 656                         break;
 657                 case NDR_NETR_SERVERAUTHENTICATE3:
 658                         fn = "_netr_ServerAuthenticate3";
 659                         break;
 660                 default:
 661                         return NT_STATUS_INTERNAL_ERROR;
 662         }
 663
 664         /* We use this as the key to store the creds: */
 665         /* r->in.computer_name */
 666
 667         if (!pipe_state) {
 668                 DEBUG(0,("%s: no challenge sent to client %s\n", fn,
 669                         r->in.computer_name));
 670                 status = NT_STATUS_ACCESS_DENIED;
 671                 goto out;
 672         }
 673
 674         if ( (lp_server_schannel() == true) &&
 675              ((in_neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
 676
 677                 /* schannel must be used, but client did not offer it. */
 678                 DEBUG(0,("%s: schannel required but client failed "
 679                         "to offer it. Client was %s\n",
 680                         fn, r->in.account_name));
 681                 status = NT_STATUS_ACCESS_DENIED;
 682                 goto out;
 683         }
 684
 685         status = get_md4pw(&mach_pwd,
 686                            r->in.account_name,
 687                            r->in.secure_channel_type,
 688                            &sid);
 689         if (!NT_STATUS_IS_OK(status)) {
 690                 DEBUG(0,("%s: failed to get machine password for "
 691                         "account %s: %s\n",
 692                         fn, r->in.account_name, nt_errstr(status) ));
 693                 /* always return NT_STATUS_ACCESS_DENIED */
 694                 status = NT_STATUS_ACCESS_DENIED;
 695                 goto out;
 696         }
 697
 698         /* From the client / server challenges and md4 password, generate sess key */
 699         /* Check client credentials are valid. */
 700         creds = netlogon_creds_server_init(p->mem_ctx,
 701                                            r->in.account_name,
 702                                            r->in.computer_name,
 703                                            r->in.secure_channel_type,
 704                                            &pipe_state->client_challenge,
 705                                            &pipe_state->server_challenge,
 706                                            &mach_pwd,
 707                                            r->in.credentials,
 708                                            r->out.return_credentials,
 709                                            *r->in.negotiate_flags);
 710         if (!creds) {
 711                 DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
 712                         "request from client %s machine account %s\n",
 713                         fn, r->in.computer_name,
 714                         r->in.account_name));
 715                 status = NT_STATUS_ACCESS_DENIED;
 716                 goto out;
 717         }
 718
 719         creds->sid = sid_dup_talloc(creds, &sid);
 720         if (!creds->sid) {
 721                 status = NT_STATUS_NO_MEMORY;
 722                 goto out;
 723         }
 724
 725         /* Store off the state so we can continue after client disconnect. */
 726         become_root();
 727         status = schannel_store_session_key(p->mem_ctx, creds);
 728         unbecome_root();
 729
 730         if (!NT_STATUS_IS_OK(status)) {
 731                 goto out;
 732         }
 733
 734         sid_peek_rid(&sid, r->out.rid);
 735
 736         status = NT_STATUS_OK;
 737
 738   out:
 739
 740         *r->out.negotiate_flags = srv_flgs;
 741         return status;
 742 }
 743
 744 /*************************************************************************
 745  _netr_ServerAuthenticate2
 746  *************************************************************************/
 747
 748 NTSTATUS _netr_ServerAuthenticate2(pipes_struct *p,
 749                                    struct netr_ServerAuthenticate2 *r)
 750 {
 751         struct netr_ServerAuthenticate3 a;
 752         uint32_t rid;
 753
 754         a.in.server_name                = r->in.server_name;
 755         a.in.account_name               = r->in.account_name;
 756         a.in.secure_channel_type        = r->in.secure_channel_type;
 757         a.in.computer_name              = r->in.computer_name;
 758         a.in.credentials                = r->in.credentials;
 759         a.in.negotiate_flags            = r->in.negotiate_flags;
 760
 761         a.out.return_credentials        = r->out.return_credentials;
 762         a.out.rid                       = &rid;
 763         a.out.negotiate_flags           = r->out.negotiate_flags;
 764
 765         return _netr_ServerAuthenticate3(p, &a);
 766 }
 767
 768 /*************************************************************************
 769  *************************************************************************/
 770
 771 static NTSTATUS netr_creds_server_step_check(pipes_struct *p,
 772                                              TALLOC_CTX *mem_ctx,
 773                                              const char *computer_name,
 774                                              struct netr_Authenticator *received_authenticator,
 775                                              struct netr_Authenticator *return_authenticator,
 776                                              struct netlogon_creds_CredentialState **creds_out)
 777 {
 778         NTSTATUS status;
 779         struct tdb_context *tdb;
 780         bool schannel_global_required = (lp_server_schannel() == true) ? true:false;
 781         bool schannel_in_use = (p->auth.auth_type == PIPE_AUTH_TYPE_SCHANNEL) ? true:false; /* &&
 782                 (p->auth.auth_level == DCERPC_AUTH_LEVEL_INTEGRITY ||
 783                  p->auth.auth_level == DCERPC_AUTH_LEVEL_PRIVACY); */
 784
 785         tdb = open_schannel_session_store(mem_ctx);
 786         if (!tdb) {
 787                 return NT_STATUS_ACCESS_DENIED;
 788         }
 789
 790         status = schannel_creds_server_step_check_tdb(tdb, mem_ctx,
 791                                                       computer_name,
 792                                                       schannel_global_required,
 793                                                       schannel_in_use,
 794                                                       received_authenticator,
 795                                                       return_authenticator,
 796                                                       creds_out);
 797         tdb_close(tdb);
 798
 799         return status;
 800 }
 801
 802 /*************************************************************************
 803  *************************************************************************/
 804
 805 static NTSTATUS netr_find_machine_account(TALLOC_CTX *mem_ctx,
 806                                           const char *account_name,
 807                                           struct samu **sampassp)
 808 {
 809         struct samu *sampass;
 810         bool ret = false;
 811         uint32_t acct_ctrl;
 812
 813         sampass = samu_new(mem_ctx);
 814         if (!sampass) {
 815                 return NT_STATUS_NO_MEMORY;
 816         }
 817
 818         become_root();
 819         ret = pdb_getsampwnam(sampass, account_name);
 820         unbecome_root();
 821
 822         if (!ret) {
 823                 TALLOC_FREE(sampass);
 824                 return NT_STATUS_ACCESS_DENIED;
 825         }
 826
 827         /* Ensure the account exists and is a machine account. */
 828
 829         acct_ctrl = pdb_get_acct_ctrl(sampass);
 830
 831         if (!(acct_ctrl & ACB_WSTRUST ||
 832               acct_ctrl & ACB_SVRTRUST ||
 833               acct_ctrl & ACB_DOMTRUST)) {
 834                 TALLOC_FREE(sampass);
 835                 return NT_STATUS_NO_SUCH_USER;
 836         }
 837
 838         if (acct_ctrl & ACB_DISABLED) {
 839                 TALLOC_FREE(sampass);
 840                 return NT_STATUS_ACCOUNT_DISABLED;
 841         }
 842
 843         *sampassp = sampass;
 844
 845         return NT_STATUS_OK;
 846 }
 847
 848 /*************************************************************************
 849  *************************************************************************/
 850
 851 static NTSTATUS netr_set_machine_account_password(TALLOC_CTX *mem_ctx,
 852                                                   struct samu *sampass,
 853                                                   DATA_BLOB *plaintext_blob,
 854                                                   struct samr_Password *nt_hash,
 855                                                   struct samr_Password *lm_hash)
 856 {
 857         NTSTATUS status;
 858         const uchar *old_pw;
 859         const char *plaintext = NULL;
 860         size_t plaintext_len;
 861         struct samr_Password nt_hash_local;
 862
 863         if (!sampass) {
 864                 return NT_STATUS_INVALID_PARAMETER;
 865         }
 866
 867         if (plaintext_blob) {
 868                 if (!convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX,
 869                                            plaintext_blob->data, plaintext_blob->length,
 870                                            &plaintext, &plaintext_len, false))
 871                 {
 872                         plaintext = NULL;
 873                         mdfour(nt_hash_local.hash, plaintext_blob->data, plaintext_blob->length);
 874                         nt_hash = &nt_hash_local;
 875                 }
 876         }
 877
 878         if (plaintext) {
 879                 if (!pdb_set_plaintext_passwd(sampass, plaintext)) {
 880                         return NT_STATUS_ACCESS_DENIED;
 881                 }
 882
 883                 goto done;
 884         }
 885
 886         if (nt_hash) {
 887                 old_pw = pdb_get_nt_passwd(sampass);
 888
 889                 if (old_pw && memcmp(nt_hash->hash, old_pw, 16) == 0) {
 890                         /* Avoid backend modificiations and other fun if the
 891                            client changed the password to the *same thing* */
 892                 } else {
 893                         /* LM password should be NULL for machines */
 894                         if (!pdb_set_lanman_passwd(sampass, NULL, PDB_CHANGED)) {
 895                                 return NT_STATUS_NO_MEMORY;
 896                         }
 897                         if (!pdb_set_nt_passwd(sampass, nt_hash->hash, PDB_CHANGED)) {
 898                                 return NT_STATUS_NO_MEMORY;
 899                         }
 900
 901                         if (!pdb_set_pass_last_set_time(sampass, time(NULL), PDB_CHANGED)) {
 902                                 /* Not quite sure what this one qualifies as, but this will do */
 903                                 return NT_STATUS_UNSUCCESSFUL;
 904                         }
 905                 }
 906         }
 907
 908  done:
 909         become_root();
 910         status = pdb_update_sam_account(sampass);
 911         unbecome_root();
 912
 913         return status;
 914 }
 915
 916 /*************************************************************************
 917  _netr_ServerPasswordSet
 918  *************************************************************************/
 919
 920 NTSTATUS _netr_ServerPasswordSet(pipes_struct *p,
 921                                  struct netr_ServerPasswordSet *r)
 922 {
 923         NTSTATUS status = NT_STATUS_OK;
 924         struct samu *sampass=NULL;
 925         int i;
 926         struct netlogon_creds_CredentialState *creds;
 927
 928         DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
 929
 930         become_root();
 931         status = netr_creds_server_step_check(p, p->mem_ctx,
 932                                               r->in.computer_name,
 933                                               r->in.credential,
 934                                               r->out.return_authenticator,
 935                                               &creds);
 936         unbecome_root();
 937
 938         if (!NT_STATUS_IS_OK(status)) {
 939                 DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
 940                         "request from client %s machine account %s\n",
 941                         r->in.computer_name, creds->computer_name));
 942                 TALLOC_FREE(creds);
 943                 return status;
 944         }
 945
 946         DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
 947                         r->in.computer_name, creds->computer_name));
 948
 949         netlogon_creds_des_decrypt(creds, r->in.new_password);
 950
 951         DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
 952         for(i = 0; i < sizeof(r->in.new_password->hash); i++)
 953                 DEBUG(100,("%02X ", r->in.new_password->hash[i]));
 954         DEBUG(100,("\n"));
 955
 956         status = netr_find_machine_account(p->mem_ctx,
 957                                            creds->account_name,
 958                                            &sampass);
 959         if (!NT_STATUS_IS_OK(status)) {
 960                 return status;
 961         }
 962
 963         status = netr_set_machine_account_password(sampass,
 964                                                    sampass,
 965                                                    NULL,
 966                                                    r->in.new_password,
 967                                                    NULL);
 968         TALLOC_FREE(sampass);
 969         return status;
 970 }
 971
 972 /****************************************************************
 973  _netr_ServerPasswordSet2
 974 ****************************************************************/
 975
 976 NTSTATUS _netr_ServerPasswordSet2(pipes_struct *p,
 977                                   struct netr_ServerPasswordSet2 *r)
 978 {
 979         NTSTATUS status;
 980         struct netlogon_creds_CredentialState *creds;
 981         struct samu *sampass;
 982         DATA_BLOB plaintext;
 983         struct samr_CryptPassword password_buf;
 984         struct samr_Password nt_hash;
 985
 986         become_root();
 987         status = netr_creds_server_step_check(p, p->mem_ctx,
 988                                               r->in.computer_name,
 989                                               r->in.credential,
 990                                               r->out.return_authenticator,
 991                                               &creds);
 992         unbecome_root();
 993
 994         if (!NT_STATUS_IS_OK(status)) {
 995                 DEBUG(2,("_netr_ServerPasswordSet2: netlogon_creds_server_step "
 996                         "failed. Rejecting auth request from client %s machine account %s\n",
 997                         r->in.computer_name, creds->computer_name));
 998                 TALLOC_FREE(creds);
 999                 return status;
1000         }
1001
1002         memcpy(password_buf.data, r->in.new_password->data, 512);
1003         SIVAL(password_buf.data, 512, r->in.new_password->length);
1004         netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
1005
1006         if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &plaintext)) {
1007                 return NT_STATUS_WRONG_PASSWORD;
1008         }
1009
1010         mdfour(nt_hash.hash, plaintext.data, plaintext.length);
1011
1012         status = netr_find_machine_account(p->mem_ctx,
1013                                            creds->account_name,
1014                                            &sampass);
1015         if (!NT_STATUS_IS_OK(status)) {
1016                 return status;
1017         }
1018
1019         status = netr_set_machine_account_password(sampass,
1020                                                    sampass,
1021                                                    NULL,
1022                                                    &nt_hash,
1023                                                    NULL);
1024         TALLOC_FREE(sampass);
1025         return status;
1026 }
1027
1028 /*************************************************************************
1029  _netr_LogonSamLogoff
1030  *************************************************************************/
1031
1032 NTSTATUS _netr_LogonSamLogoff(pipes_struct *p,
1033                               struct netr_LogonSamLogoff *r)
1034 {
1035         NTSTATUS status;
1036         struct netlogon_creds_CredentialState *creds;
1037
1038         become_root();
1039         status = netr_creds_server_step_check(p, p->mem_ctx,
1040                                               r->in.computer_name,
1041                                               r->in.credential,
1042                                               r->out.return_authenticator,
1043                                               &creds);
1044         unbecome_root();
1045
1046         return status;
1047 }
1048
1049 /*************************************************************************
1050  _netr_LogonSamLogon_base
1051  *************************************************************************/
1052
1053 static NTSTATUS _netr_LogonSamLogon_base(pipes_struct *p,
1054                                          struct netr_LogonSamLogonEx *r,
1055                                          struct netlogon_creds_CredentialState *creds)
1056 {
1057         NTSTATUS status = NT_STATUS_OK;
1058         union netr_LogonLevel *logon = r->in.logon;
1059         const char *nt_username, *nt_domain, *nt_workstation;
1060         struct auth_usersupplied_info *user_info = NULL;
1061         struct auth_serversupplied_info *server_info = NULL;
1062         struct auth_context *auth_context = NULL;
1063         uint8_t pipe_session_key[16];
1064         bool process_creds = true;
1065         const char *fn;
1066
1067         switch (p->hdr_req.opnum) {
1068                 case NDR_NETR_LOGONSAMLOGON:
1069                         process_creds = true;
1070                         fn = "_netr_LogonSamLogon";
1071                         break;
1072                 case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1073                         process_creds = true;
1074                         fn = "_netr_LogonSamLogonWithFlags";
1075                         break;
1076                 case NDR_NETR_LOGONSAMLOGONEX:
1077                         process_creds = false;
1078                         fn = "_netr_LogonSamLogonEx";
1079                         break;
1080                 default:
1081                         return NT_STATUS_INTERNAL_ERROR;
1082         }
1083
1084         *r->out.authoritative = true; /* authoritative response */
1085
1086         switch (r->in.validation_level) {
1087         case 2:
1088                 r->out.validation->sam2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo2);
1089                 if (!r->out.validation->sam2) {
1090                         return NT_STATUS_NO_MEMORY;
1091                 }
1092                 break;
1093         case 3:
1094                 r->out.validation->sam3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo3);
1095                 if (!r->out.validation->sam3) {
1096                         return NT_STATUS_NO_MEMORY;
1097                 }
1098                 break;
1099         case 6:
1100                 r->out.validation->sam6 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo6);
1101                 if (!r->out.validation->sam6) {
1102                         return NT_STATUS_NO_MEMORY;
1103                 }
1104                 break;
1105         default:
1106                 DEBUG(0,("%s: bad validation_level value %d.\n",
1107                         fn, (int)r->in.validation_level));
1108                 return NT_STATUS_INVALID_INFO_CLASS;
1109         }
1110
1111         switch (r->in.logon_level) {
1112         case NetlogonInteractiveInformation:
1113         case NetlogonServiceInformation:
1114         case NetlogonInteractiveTransitiveInformation:
1115         case NetlogonServiceTransitiveInformation:
1116                 nt_username     = logon->password->identity_info.account_name.string;
1117                 nt_domain       = logon->password->identity_info.domain_name.string;
1118                 nt_workstation  = logon->password->identity_info.workstation.string;
1119
1120                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
1121                 break;
1122         case NetlogonNetworkInformation:
1123         case NetlogonNetworkTransitiveInformation:
1124                 nt_username     = logon->network->identity_info.account_name.string;
1125                 nt_domain       = logon->network->identity_info.domain_name.string;
1126                 nt_workstation  = logon->network->identity_info.workstation.string;
1127
1128                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
1129                 break;
1130         default:
1131                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1132                 return NT_STATUS_INVALID_INFO_CLASS;
1133         } /* end switch */
1134
1135         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1136         fstrcpy(current_user_info.smb_name, nt_username);
1137         sub_set_smb_name(nt_username);
1138
1139         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1140                 r->in.validation_level, nt_username));
1141
1142         status = NT_STATUS_OK;
1143
1144         switch (r->in.logon_level) {
1145         case NetlogonNetworkInformation:
1146         case NetlogonNetworkTransitiveInformation:
1147         {
1148                 const char *wksname = nt_workstation;
1149
1150                 status = make_auth_context_fixed(&auth_context,
1151                                                  logon->network->challenge);
1152                 if (!NT_STATUS_IS_OK(status)) {
1153                         return status;
1154                 }
1155
1156                 /* For a network logon, the workstation name comes in with two
1157                  * backslashes in the front. Strip them if they are there. */
1158
1159                 if (*wksname == '\\') wksname++;
1160                 if (*wksname == '\\') wksname++;
1161
1162                 /* Standard challenge/response authenticaion */
1163                 if (!make_user_info_netlogon_network(&user_info,
1164                                                      nt_username, nt_domain,
1165                                                      wksname,
1166                                                      logon->network->identity_info.parameter_control,
1167                                                      logon->network->lm.data,
1168                                                      logon->network->lm.length,
1169                                                      logon->network->nt.data,
1170                                                      logon->network->nt.length)) {
1171                         status = NT_STATUS_NO_MEMORY;
1172                 }
1173                 break;
1174         }
1175         case NetlogonInteractiveInformation:
1176         case NetlogonServiceInformation:
1177         case NetlogonInteractiveTransitiveInformation:
1178         case NetlogonServiceTransitiveInformation:
1179
1180                 /* 'Interactive' authentication, supplies the password in its
1181                    MD4 form, encrypted with the session key.  We will convert
1182                    this to challenge/response for the auth subsystem to chew
1183                    on */
1184         {
1185                 uint8_t chal[8];
1186
1187                 if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) {
1188                         return status;
1189                 }
1190
1191                 auth_context->get_ntlm_challenge(auth_context, chal);
1192
1193                 if (!make_user_info_netlogon_interactive(&user_info,
1194                                                          nt_username, nt_domain,
1195                                                          nt_workstation,
1196                                                          logon->password->identity_info.parameter_control,
1197                                                          chal,
1198                                                          logon->password->lmpassword.hash,
1199                                                          logon->password->ntpassword.hash,
1200                                                          creds->session_key)) {
1201                         status = NT_STATUS_NO_MEMORY;
1202                 }
1203                 break;
1204         }
1205         default:
1206                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1207                 return NT_STATUS_INVALID_INFO_CLASS;
1208         } /* end switch */
1209
1210         if ( NT_STATUS_IS_OK(status) ) {
1211                 status = auth_context->check_ntlm_password(auth_context,
1212                         user_info, &server_info);
1213         }
1214
1215         (auth_context->free)(&auth_context);
1216         free_user_info(&user_info);
1217
1218         DEBUG(5,("%s: check_password returned status %s\n",
1219                   fn, nt_errstr(status)));
1220
1221         /* Check account and password */
1222
1223         if (!NT_STATUS_IS_OK(status)) {
1224                 /* If we don't know what this domain is, we need to
1225                    indicate that we are not authoritative.  This
1226                    allows the client to decide if it needs to try
1227                    a local user.  Fix by jpjanosi@us.ibm.com, #2976 */
1228                 if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
1229                      && !strequal(nt_domain, get_global_sam_name())
1230                      && !is_trusted_domain(nt_domain) )
1231                         *r->out.authoritative = false; /* We are not authoritative */
1232
1233                 TALLOC_FREE(server_info);
1234                 return status;
1235         }
1236
1237         if (server_info->guest) {
1238                 /* We don't like guest domain logons... */
1239                 DEBUG(5,("%s: Attempted domain logon as GUEST "
1240                          "denied.\n", fn));
1241                 TALLOC_FREE(server_info);
1242                 return NT_STATUS_LOGON_FAILURE;
1243         }
1244
1245         /* This is the point at which, if the login was successful, that
1246            the SAM Local Security Authority should record that the user is
1247            logged in to the domain.  */
1248
1249         if (process_creds) {
1250                 /* Get the pipe session key from the creds. */
1251                 memcpy(pipe_session_key, creds->session_key, 16);
1252         } else {
1253                 /* Get the pipe session key from the schannel. */
1254                 if ((p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL)
1255                     || (p->auth.a_u.schannel_auth == NULL)) {
1256                         return NT_STATUS_INVALID_HANDLE;
1257                 }
1258                 memcpy(pipe_session_key, p->auth.a_u.schannel_auth->creds->session_key, 16);
1259         }
1260
1261         switch (r->in.validation_level) {
1262         case 2:
1263                 status = serverinfo_to_SamInfo2(server_info, pipe_session_key, 16,
1264                                                 r->out.validation->sam2);
1265                 break;
1266         case 3:
1267                 status = serverinfo_to_SamInfo3(server_info, pipe_session_key, 16,
1268                                                 r->out.validation->sam3);
1269                 break;
1270         case 6:
1271                 status = serverinfo_to_SamInfo6(server_info, pipe_session_key, 16,
1272                                                 r->out.validation->sam6);
1273                 break;
1274         }
1275
1276         TALLOC_FREE(server_info);
1277
1278         return status;
1279 }
1280
1281 /****************************************************************
1282  _netr_LogonSamLogonWithFlags
1283 ****************************************************************/
1284
1285 NTSTATUS _netr_LogonSamLogonWithFlags(pipes_struct *p,
1286                                       struct netr_LogonSamLogonWithFlags *r)
1287 {
1288         NTSTATUS status;
1289         struct netlogon_creds_CredentialState *creds;
1290         struct netr_LogonSamLogonEx r2;
1291         struct netr_Authenticator return_authenticator;
1292
1293         become_root();
1294         status = netr_creds_server_step_check(p, p->mem_ctx,
1295                                               r->in.computer_name,
1296                                               r->in.credential,
1297                                               &return_authenticator,
1298                                               &creds);
1299         unbecome_root();
1300         if (!NT_STATUS_IS_OK(status)) {
1301                 return status;
1302         }
1303
1304         r2.in.server_name       = r->in.server_name;
1305         r2.in.computer_name     = r->in.computer_name;
1306         r2.in.logon_level       = r->in.logon_level;
1307         r2.in.logon             = r->in.logon;
1308         r2.in.validation_level  = r->in.validation_level;
1309         r2.in.flags             = r->in.flags;
1310         r2.out.validation       = r->out.validation;
1311         r2.out.authoritative    = r->out.authoritative;
1312         r2.out.flags            = r->out.flags;
1313
1314         status = _netr_LogonSamLogon_base(p, &r2, creds);
1315
1316         *r->out.return_authenticator = return_authenticator;
1317
1318         return status;
1319 }
1320
1321 /*************************************************************************
1322  _netr_LogonSamLogon
1323  *************************************************************************/
1324
1325 NTSTATUS _netr_LogonSamLogon(pipes_struct *p,
1326                              struct netr_LogonSamLogon *r)
1327 {
1328         NTSTATUS status;
1329         struct netr_LogonSamLogonWithFlags r2;
1330         uint32_t flags = 0;
1331
1332         r2.in.server_name               = r->in.server_name;
1333         r2.in.computer_name             = r->in.computer_name;
1334         r2.in.credential                = r->in.credential;
1335         r2.in.logon_level               = r->in.logon_level;
1336         r2.in.logon                     = r->in.logon;
1337         r2.in.validation_level          = r->in.validation_level;
1338         r2.in.return_authenticator      = r->in.return_authenticator;
1339         r2.in.flags                     = &flags;
1340         r2.out.validation               = r->out.validation;
1341         r2.out.authoritative            = r->out.authoritative;
1342         r2.out.flags                    = &flags;
1343         r2.out.return_authenticator     = r->out.return_authenticator;
1344
1345         status = _netr_LogonSamLogonWithFlags(p, &r2);
1346
1347         return status;
1348 }
1349
1350 /*************************************************************************
1351  _netr_LogonSamLogonEx
1352  - no credential chaining. Map into net sam logon.
1353  *************************************************************************/
1354
1355 NTSTATUS _netr_LogonSamLogonEx(pipes_struct *p,
1356                                struct netr_LogonSamLogonEx *r)
1357 {
1358         NTSTATUS status;
1359         struct netlogon_creds_CredentialState *creds = NULL;
1360
1361         become_root();
1362         status = schannel_fetch_session_key(p->mem_ctx, r->in.computer_name, &creds);
1363         unbecome_root();
1364         if (!NT_STATUS_IS_OK(status)) {
1365                 return status;
1366         }
1367
1368         /* Only allow this if the pipe is protected. */
1369         if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) {
1370                 DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n",
1371                         get_remote_machine_name() ));
1372                 return NT_STATUS_INVALID_PARAMETER;
1373         }
1374
1375         status = _netr_LogonSamLogon_base(p, r, creds);
1376         TALLOC_FREE(creds);
1377
1378         return status;
1379 }
1380
1381 /*************************************************************************
1382  _ds_enum_dom_trusts
1383  *************************************************************************/
1384 #if 0   /* JERRY -- not correct */
1385  NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
1386                              DS_R_ENUM_DOM_TRUSTS *r_u)
1387 {
1388         NTSTATUS status = NT_STATUS_OK;
1389
1390         /* TODO: According to MSDN, the can only be executed against a
1391            DC or domain member running Windows 2000 or later.  Need
1392            to test against a standalone 2k server and see what it
1393            does.  A windows 2000 DC includes its own domain in the
1394            list.  --jerry */
1395
1396         return status;
1397 }
1398 #endif  /* JERRY */
1399
1400
1401 /****************************************************************
1402 ****************************************************************/
1403
1404 WERROR _netr_LogonUasLogon(pipes_struct *p,
1405                            struct netr_LogonUasLogon *r)
1406 {
1407         p->rng_fault_state = true;
1408         return WERR_NOT_SUPPORTED;
1409 }
1410
1411 /****************************************************************
1412 ****************************************************************/
1413
1414 WERROR _netr_LogonUasLogoff(pipes_struct *p,
1415                             struct netr_LogonUasLogoff *r)
1416 {
1417         p->rng_fault_state = true;
1418         return WERR_NOT_SUPPORTED;
1419 }
1420
1421 /****************************************************************
1422 ****************************************************************/
1423
1424 NTSTATUS _netr_DatabaseDeltas(pipes_struct *p,
1425                               struct netr_DatabaseDeltas *r)
1426 {
1427         p->rng_fault_state = true;
1428         return NT_STATUS_NOT_IMPLEMENTED;
1429 }
1430
1431 /****************************************************************
1432 ****************************************************************/
1433
1434 NTSTATUS _netr_DatabaseSync(pipes_struct *p,
1435                             struct netr_DatabaseSync *r)
1436 {
1437         p->rng_fault_state = true;
1438         return NT_STATUS_NOT_IMPLEMENTED;
1439 }
1440
1441 /****************************************************************
1442 ****************************************************************/
1443
1444 NTSTATUS _netr_AccountDeltas(pipes_struct *p,
1445                              struct netr_AccountDeltas *r)
1446 {
1447         p->rng_fault_state = true;
1448         return NT_STATUS_NOT_IMPLEMENTED;
1449 }
1450
1451 /****************************************************************
1452 ****************************************************************/
1453
1454 NTSTATUS _netr_AccountSync(pipes_struct *p,
1455                            struct netr_AccountSync *r)
1456 {
1457         p->rng_fault_state = true;
1458         return NT_STATUS_NOT_IMPLEMENTED;
1459 }
1460
1461 /****************************************************************
1462 ****************************************************************/
1463
1464 static bool wb_getdcname(TALLOC_CTX *mem_ctx,
1465                          const char *domain,
1466                          const char **dcname,
1467                          uint32_t flags,
1468                          WERROR *werr)
1469 {
1470         wbcErr result;
1471         struct wbcDomainControllerInfo *dc_info = NULL;
1472
1473         result = wbcLookupDomainController(domain,
1474                                            flags,
1475                                            &dc_info);
1476         switch (result) {
1477         case WBC_ERR_SUCCESS:
1478                 break;
1479         case WBC_ERR_WINBIND_NOT_AVAILABLE:
1480                 return false;
1481         case WBC_ERR_DOMAIN_NOT_FOUND:
1482                 *werr = WERR_NO_SUCH_DOMAIN;
1483                 return true;
1484         default:
1485                 *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1486                 return true;
1487         }
1488
1489         *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
1490         wbcFreeMemory(dc_info);
1491         if (!*dcname) {
1492                 *werr = WERR_NOMEM;
1493                 return false;
1494         }
1495
1496         *werr = WERR_OK;
1497
1498         return true;
1499 }
1500
1501 /****************************************************************
1502  _netr_GetDcName
1503 ****************************************************************/
1504
1505 WERROR _netr_GetDcName(pipes_struct *p,
1506                        struct netr_GetDcName *r)
1507 {
1508         NTSTATUS status;
1509         WERROR werr;
1510         uint32_t flags;
1511         struct netr_DsRGetDCNameInfo *info;
1512         bool ret;
1513
1514         ret = wb_getdcname(p->mem_ctx,
1515                            r->in.domainname,
1516                            r->out.dcname,
1517                            WBC_LOOKUP_DC_IS_FLAT_NAME |
1518                            WBC_LOOKUP_DC_RETURN_FLAT_NAME |
1519                            WBC_LOOKUP_DC_PDC_REQUIRED,
1520                            &werr);
1521         if (ret == true) {
1522                 return werr;
1523         }
1524
1525         flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
1526
1527         status = dsgetdcname(p->mem_ctx,
1528                              smbd_messaging_context(),
1529                              r->in.domainname,
1530                              NULL,
1531                              NULL,
1532                              flags,
1533                              &info);
1534         if (!NT_STATUS_IS_OK(status)) {
1535                 return ntstatus_to_werror(status);
1536         }
1537
1538         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
1539         talloc_free(info);
1540         if (!*r->out.dcname) {
1541                 return WERR_NOMEM;
1542         }
1543
1544         return WERR_OK;
1545 }
1546
1547 /****************************************************************
1548  _netr_GetAnyDCName
1549 ****************************************************************/
1550
1551 WERROR _netr_GetAnyDCName(pipes_struct *p,
1552                           struct netr_GetAnyDCName *r)
1553 {
1554         NTSTATUS status;
1555         WERROR werr;
1556         uint32_t flags;
1557         struct netr_DsRGetDCNameInfo *info;
1558         bool ret;
1559
1560         ret = wb_getdcname(p->mem_ctx,
1561                            r->in.domainname,
1562                            r->out.dcname,
1563                            WBC_LOOKUP_DC_IS_FLAT_NAME |
1564                            WBC_LOOKUP_DC_RETURN_FLAT_NAME,
1565                            &werr);
1566         if (ret == true) {
1567                 return werr;
1568         }
1569
1570         flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
1571
1572         status = dsgetdcname(p->mem_ctx,
1573                              smbd_messaging_context(),
1574                              r->in.domainname,
1575                              NULL,
1576                              NULL,
1577                              flags,
1578                              &info);
1579         if (!NT_STATUS_IS_OK(status)) {
1580                 return ntstatus_to_werror(status);
1581         }
1582
1583         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
1584         talloc_free(info);
1585         if (!*r->out.dcname) {
1586                 return WERR_NOMEM;
1587         }
1588
1589         return WERR_OK;
1590 }
1591
1592 /****************************************************************
1593 ****************************************************************/
1594
1595 NTSTATUS _netr_DatabaseSync2(pipes_struct *p,
1596                              struct netr_DatabaseSync2 *r)
1597 {
1598         p->rng_fault_state = true;
1599         return NT_STATUS_NOT_IMPLEMENTED;
1600 }
1601
1602 /****************************************************************
1603 ****************************************************************/
1604
1605 NTSTATUS _netr_DatabaseRedo(pipes_struct *p,
1606                             struct netr_DatabaseRedo *r)
1607 {
1608         p->rng_fault_state = true;
1609         return NT_STATUS_NOT_IMPLEMENTED;
1610 }
1611
1612 /****************************************************************
1613 ****************************************************************/
1614
1615 WERROR _netr_DsRGetDCName(pipes_struct *p,
1616                           struct netr_DsRGetDCName *r)
1617 {
1618         p->rng_fault_state = true;
1619         return WERR_NOT_SUPPORTED;
1620 }
1621
1622 /****************************************************************
1623 ****************************************************************/
1624
1625 NTSTATUS _netr_LogonGetCapabilities(pipes_struct *p,
1626                                     struct netr_LogonGetCapabilities *r)
1627 {
1628         return NT_STATUS_NOT_IMPLEMENTED;
1629 }
1630
1631 /****************************************************************
1632 ****************************************************************/
1633
1634 WERROR _netr_NETRLOGONSETSERVICEBITS(pipes_struct *p,
1635                                      struct netr_NETRLOGONSETSERVICEBITS *r)
1636 {
1637         p->rng_fault_state = true;
1638         return WERR_NOT_SUPPORTED;
1639 }
1640
1641 /****************************************************************
1642 ****************************************************************/
1643
1644 WERROR _netr_LogonGetTrustRid(pipes_struct *p,
1645                               struct netr_LogonGetTrustRid *r)
1646 {
1647         p->rng_fault_state = true;
1648         return WERR_NOT_SUPPORTED;
1649 }
1650
1651 /****************************************************************
1652 ****************************************************************/
1653
1654 WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(pipes_struct *p,
1655                                           struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
1656 {
1657         p->rng_fault_state = true;
1658         return WERR_NOT_SUPPORTED;
1659 }
1660
1661 /****************************************************************
1662 ****************************************************************/
1663
1664 WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(pipes_struct *p,
1665                                           struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
1666 {
1667         p->rng_fault_state = true;
1668         return WERR_NOT_SUPPORTED;
1669 }
1670
1671 /****************************************************************
1672 ****************************************************************/
1673
1674 WERROR _netr_DsRGetDCNameEx(pipes_struct *p,
1675                             struct netr_DsRGetDCNameEx *r)
1676 {
1677         p->rng_fault_state = true;
1678         return WERR_NOT_SUPPORTED;
1679 }
1680
1681 /****************************************************************
1682 ****************************************************************/
1683
1684 WERROR _netr_DsRGetSiteName(pipes_struct *p,
1685                             struct netr_DsRGetSiteName *r)
1686 {
1687         p->rng_fault_state = true;
1688         return WERR_NOT_SUPPORTED;
1689 }
1690
1691 /****************************************************************
1692 ****************************************************************/
1693
1694 NTSTATUS _netr_LogonGetDomainInfo(pipes_struct *p,
1695                                   struct netr_LogonGetDomainInfo *r)
1696 {
1697         p->rng_fault_state = true;
1698         return NT_STATUS_NOT_IMPLEMENTED;
1699 }
1700
1701 /****************************************************************
1702 ****************************************************************/
1703
1704 WERROR _netr_ServerPasswordGet(pipes_struct *p,
1705                                struct netr_ServerPasswordGet *r)
1706 {
1707         p->rng_fault_state = true;
1708         return WERR_NOT_SUPPORTED;
1709 }
1710
1711 /****************************************************************
1712 ****************************************************************/
1713
1714 WERROR _netr_NETRLOGONSENDTOSAM(pipes_struct *p,
1715                                 struct netr_NETRLOGONSENDTOSAM *r)
1716 {
1717         p->rng_fault_state = true;
1718         return WERR_NOT_SUPPORTED;
1719 }
1720
1721 /****************************************************************
1722 ****************************************************************/
1723
1724 WERROR _netr_DsRAddressToSitenamesW(pipes_struct *p,
1725                                     struct netr_DsRAddressToSitenamesW *r)
1726 {
1727         p->rng_fault_state = true;
1728         return WERR_NOT_SUPPORTED;
1729 }
1730
1731 /****************************************************************
1732 ****************************************************************/
1733
1734 WERROR _netr_DsRGetDCNameEx2(pipes_struct *p,
1735                              struct netr_DsRGetDCNameEx2 *r)
1736 {
1737         p->rng_fault_state = true;
1738         return WERR_NOT_SUPPORTED;
1739 }
1740
1741 /****************************************************************
1742 ****************************************************************/
1743
1744 WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(pipes_struct *p,
1745                                                  struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
1746 {
1747         p->rng_fault_state = true;
1748         return WERR_NOT_SUPPORTED;
1749 }
1750
1751 /****************************************************************
1752 ****************************************************************/
1753
1754 WERROR _netr_NetrEnumerateTrustedDomainsEx(pipes_struct *p,
1755                                            struct netr_NetrEnumerateTrustedDomainsEx *r)
1756 {
1757         p->rng_fault_state = true;
1758         return WERR_NOT_SUPPORTED;
1759 }
1760
1761 /****************************************************************
1762 ****************************************************************/
1763
1764 WERROR _netr_DsRAddressToSitenamesExW(pipes_struct *p,
1765                                       struct netr_DsRAddressToSitenamesExW *r)
1766 {
1767         p->rng_fault_state = true;
1768         return WERR_NOT_SUPPORTED;
1769 }
1770
1771 /****************************************************************
1772 ****************************************************************/
1773
1774 WERROR _netr_DsrGetDcSiteCoverageW(pipes_struct *p,
1775                                    struct netr_DsrGetDcSiteCoverageW *r)
1776 {
1777         p->rng_fault_state = true;
1778         return WERR_NOT_SUPPORTED;
1779 }
1780
1781 /****************************************************************
1782 ****************************************************************/
1783
1784 WERROR _netr_DsrEnumerateDomainTrusts(pipes_struct *p,
1785                                       struct netr_DsrEnumerateDomainTrusts *r)
1786 {
1787         p->rng_fault_state = true;
1788         return WERR_NOT_SUPPORTED;
1789 }
1790
1791 /****************************************************************
1792 ****************************************************************/
1793
1794 WERROR _netr_DsrDeregisterDNSHostRecords(pipes_struct *p,
1795                                          struct netr_DsrDeregisterDNSHostRecords *r)
1796 {
1797         p->rng_fault_state = true;
1798         return WERR_NOT_SUPPORTED;
1799 }
1800
1801 /****************************************************************
1802 ****************************************************************/
1803
1804 NTSTATUS _netr_ServerTrustPasswordsGet(pipes_struct *p,
1805                                        struct netr_ServerTrustPasswordsGet *r)
1806 {
1807         p->rng_fault_state = true;
1808         return NT_STATUS_NOT_IMPLEMENTED;
1809 }
1810
1811 /****************************************************************
1812 ****************************************************************/
1813
1814 WERROR _netr_DsRGetForestTrustInformation(pipes_struct *p,
1815                                           struct netr_DsRGetForestTrustInformation *r)
1816 {
1817         p->rng_fault_state = true;
1818         return WERR_NOT_SUPPORTED;
1819 }
1820
1821 /****************************************************************
1822 ****************************************************************/
1823
1824 NTSTATUS _netr_GetForestTrustInformation(pipes_struct *p,
1825                                          struct netr_GetForestTrustInformation *r)
1826 {
1827         p->rng_fault_state = true;
1828         return NT_STATUS_NOT_IMPLEMENTED;
1829 }
1830
1831 /****************************************************************
1832 ****************************************************************/
1833
1834 NTSTATUS _netr_ServerGetTrustInfo(pipes_struct *p,
1835                                   struct netr_ServerGetTrustInfo *r)
1836 {
1837         p->rng_fault_state = true;
1838         return NT_STATUS_NOT_IMPLEMENTED;
1839 }
1840