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 = NULL;
 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                 const char *computer_name = "<unknown>";
 996
 997                 if (creds && creds->computer_name) {
 998                         computer_name = creds->computer_name;
 999                 }
1000
1001                 DEBUG(2,("_netr_ServerPasswordSet2: netlogon_creds_server_step "
1002                         "failed. Rejecting auth request from client %s machine account %s\n",
1003                         r->in.computer_name, computer_name));
1004                 TALLOC_FREE(creds);
1005                 return status;
1006         }
1007
1008         memcpy(password_buf.data, r->in.new_password->data, 512);
1009         SIVAL(password_buf.data, 512, r->in.new_password->length);
1010         netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
1011
1012         if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &plaintext)) {
1013                 TALLOC_FREE(creds);
1014                 return NT_STATUS_WRONG_PASSWORD;
1015         }
1016
1017         mdfour(nt_hash.hash, plaintext.data, plaintext.length);
1018
1019         status = netr_find_machine_account(p->mem_ctx,
1020                                            creds->account_name,
1021                                            &sampass);
1022         TALLOC_FREE(creds);
1023         if (!NT_STATUS_IS_OK(status)) {
1024                 return status;
1025         }
1026
1027         status = netr_set_machine_account_password(sampass,
1028                                                    sampass,
1029                                                    NULL,
1030                                                    &nt_hash,
1031                                                    NULL);
1032         TALLOC_FREE(sampass);
1033         return status;
1034 }
1035
1036 /*************************************************************************
1037  _netr_LogonSamLogoff
1038  *************************************************************************/
1039
1040 NTSTATUS _netr_LogonSamLogoff(pipes_struct *p,
1041                               struct netr_LogonSamLogoff *r)
1042 {
1043         NTSTATUS status;
1044         struct netlogon_creds_CredentialState *creds;
1045
1046         become_root();
1047         status = netr_creds_server_step_check(p, p->mem_ctx,
1048                                               r->in.computer_name,
1049                                               r->in.credential,
1050                                               r->out.return_authenticator,
1051                                               &creds);
1052         unbecome_root();
1053
1054         return status;
1055 }
1056
1057 /*************************************************************************
1058  _netr_LogonSamLogon_base
1059  *************************************************************************/
1060
1061 static NTSTATUS _netr_LogonSamLogon_base(pipes_struct *p,
1062                                          struct netr_LogonSamLogonEx *r,
1063                                          struct netlogon_creds_CredentialState *creds)
1064 {
1065         NTSTATUS status = NT_STATUS_OK;
1066         union netr_LogonLevel *logon = r->in.logon;
1067         const char *nt_username, *nt_domain, *nt_workstation;
1068         auth_usersupplied_info *user_info = NULL;
1069         auth_serversupplied_info *server_info = NULL;
1070         struct auth_context *auth_context = NULL;
1071         uint8_t pipe_session_key[16];
1072         bool process_creds = true;
1073         const char *fn;
1074
1075         switch (p->hdr_req.opnum) {
1076                 case NDR_NETR_LOGONSAMLOGON:
1077                         process_creds = true;
1078                         fn = "_netr_LogonSamLogon";
1079                         break;
1080                 case NDR_NETR_LOGONSAMLOGONWITHFLAGS:
1081                         process_creds = true;
1082                         fn = "_netr_LogonSamLogonWithFlags";
1083                         break;
1084                 case NDR_NETR_LOGONSAMLOGONEX:
1085                         process_creds = false;
1086                         fn = "_netr_LogonSamLogonEx";
1087                         break;
1088                 default:
1089                         return NT_STATUS_INTERNAL_ERROR;
1090         }
1091
1092         *r->out.authoritative = true; /* authoritative response */
1093
1094         switch (r->in.validation_level) {
1095         case 2:
1096                 r->out.validation->sam2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo2);
1097                 if (!r->out.validation->sam2) {
1098                         return NT_STATUS_NO_MEMORY;
1099                 }
1100                 break;
1101         case 3:
1102                 r->out.validation->sam3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo3);
1103                 if (!r->out.validation->sam3) {
1104                         return NT_STATUS_NO_MEMORY;
1105                 }
1106                 break;
1107         case 6:
1108                 r->out.validation->sam6 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo6);
1109                 if (!r->out.validation->sam6) {
1110                         return NT_STATUS_NO_MEMORY;
1111                 }
1112                 break;
1113         default:
1114                 DEBUG(0,("%s: bad validation_level value %d.\n",
1115                         fn, (int)r->in.validation_level));
1116                 return NT_STATUS_INVALID_INFO_CLASS;
1117         }
1118
1119         switch (r->in.logon_level) {
1120         case NetlogonInteractiveInformation:
1121         case NetlogonServiceInformation:
1122         case NetlogonInteractiveTransitiveInformation:
1123         case NetlogonServiceTransitiveInformation:
1124                 nt_username     = logon->password->identity_info.account_name.string ?
1125                                   logon->password->identity_info.account_name.string : "";
1126                 nt_domain       = logon->password->identity_info.domain_name.string ?
1127                                   logon->password->identity_info.domain_name.string : "";
1128                 nt_workstation  = logon->password->identity_info.workstation.string ?
1129                                   logon->password->identity_info.workstation.string : "";
1130
1131                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
1132                 break;
1133         case NetlogonNetworkInformation:
1134         case NetlogonNetworkTransitiveInformation:
1135                 nt_username     = logon->network->identity_info.account_name.string ?
1136                                   logon->network->identity_info.account_name.string : "";
1137                 nt_domain       = logon->network->identity_info.domain_name.string ?
1138                                   logon->network->identity_info.domain_name.string : "";
1139                 nt_workstation  = logon->network->identity_info.workstation.string ?
1140                                   logon->network->identity_info.workstation.string : "";
1141
1142                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
1143                 break;
1144         default:
1145                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1146                 return NT_STATUS_INVALID_INFO_CLASS;
1147         } /* end switch */
1148
1149         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
1150         fstrcpy(current_user_info.smb_name, nt_username);
1151         sub_set_smb_name(nt_username);
1152
1153         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
1154                 r->in.validation_level, nt_username));
1155
1156         status = NT_STATUS_OK;
1157
1158         switch (r->in.logon_level) {
1159         case NetlogonNetworkInformation:
1160         case NetlogonNetworkTransitiveInformation:
1161         {
1162                 const char *wksname = nt_workstation;
1163
1164                 status = make_auth_context_fixed(&auth_context,
1165                                                  logon->network->challenge);
1166                 if (!NT_STATUS_IS_OK(status)) {
1167                         return status;
1168                 }
1169
1170                 /* For a network logon, the workstation name comes in with two
1171                  * backslashes in the front. Strip them if they are there. */
1172
1173                 if (*wksname == '\\') wksname++;
1174                 if (*wksname == '\\') wksname++;
1175
1176                 /* Standard challenge/response authenticaion */
1177                 if (!make_user_info_netlogon_network(&user_info,
1178                                                      nt_username, nt_domain,
1179                                                      wksname,
1180                                                      logon->network->identity_info.parameter_control,
1181                                                      logon->network->lm.data,
1182                                                      logon->network->lm.length,
1183                                                      logon->network->nt.data,
1184                                                      logon->network->nt.length)) {
1185                         status = NT_STATUS_NO_MEMORY;
1186                 }
1187                 break;
1188         }
1189         case NetlogonInteractiveInformation:
1190         case NetlogonServiceInformation:
1191         case NetlogonInteractiveTransitiveInformation:
1192         case NetlogonServiceTransitiveInformation:
1193
1194                 /* 'Interactive' authentication, supplies the password in its
1195                    MD4 form, encrypted with the session key.  We will convert
1196                    this to challenge/response for the auth subsystem to chew
1197                    on */
1198         {
1199                 uint8_t chal[8];
1200
1201                 if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) {
1202                         return status;
1203                 }
1204
1205                 auth_context->get_ntlm_challenge(auth_context, chal);
1206
1207                 if (!make_user_info_netlogon_interactive(&user_info,
1208                                                          nt_username, nt_domain,
1209                                                          nt_workstation,
1210                                                          logon->password->identity_info.parameter_control,
1211                                                          chal,
1212                                                          logon->password->lmpassword.hash,
1213                                                          logon->password->ntpassword.hash,
1214                                                          creds->session_key)) {
1215                         status = NT_STATUS_NO_MEMORY;
1216                 }
1217                 break;
1218         }
1219         default:
1220                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
1221                 return NT_STATUS_INVALID_INFO_CLASS;
1222         } /* end switch */
1223
1224         if ( NT_STATUS_IS_OK(status) ) {
1225                 status = auth_context->check_ntlm_password(auth_context,
1226                         user_info, &server_info);
1227         }
1228
1229         (auth_context->free)(&auth_context);
1230         free_user_info(&user_info);
1231
1232         DEBUG(5,("%s: check_password returned status %s\n",
1233                   fn, nt_errstr(status)));
1234
1235         /* Check account and password */
1236
1237         if (!NT_STATUS_IS_OK(status)) {
1238                 /* If we don't know what this domain is, we need to
1239                    indicate that we are not authoritative.  This
1240                    allows the client to decide if it needs to try
1241                    a local user.  Fix by jpjanosi@us.ibm.com, #2976 */
1242                 if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
1243                      && !strequal(nt_domain, get_global_sam_name())
1244                      && !is_trusted_domain(nt_domain) )
1245                         *r->out.authoritative = false; /* We are not authoritative */
1246
1247                 TALLOC_FREE(server_info);
1248                 return status;
1249         }
1250
1251         if (server_info->guest) {
1252                 /* We don't like guest domain logons... */
1253                 DEBUG(5,("%s: Attempted domain logon as GUEST "
1254                          "denied.\n", fn));
1255                 TALLOC_FREE(server_info);
1256                 return NT_STATUS_LOGON_FAILURE;
1257         }
1258
1259         /* This is the point at which, if the login was successful, that
1260            the SAM Local Security Authority should record that the user is
1261            logged in to the domain.  */
1262
1263         if (process_creds) {
1264                 /* Get the pipe session key from the creds. */
1265                 memcpy(pipe_session_key, creds->session_key, 16);
1266         } else {
1267                 /* Get the pipe session key from the schannel. */
1268                 if ((p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL)
1269                     || (p->auth.a_u.schannel_auth == NULL)) {
1270                         return NT_STATUS_INVALID_HANDLE;
1271                 }
1272                 memcpy(pipe_session_key, p->auth.a_u.schannel_auth->creds->session_key, 16);
1273         }
1274
1275         switch (r->in.validation_level) {
1276         case 2:
1277                 status = serverinfo_to_SamInfo2(server_info, pipe_session_key, 16,
1278                                                 r->out.validation->sam2);
1279                 break;
1280         case 3:
1281                 status = serverinfo_to_SamInfo3(server_info, pipe_session_key, 16,
1282                                                 r->out.validation->sam3);
1283                 break;
1284         case 6:
1285                 status = serverinfo_to_SamInfo6(server_info, pipe_session_key, 16,
1286                                                 r->out.validation->sam6);
1287                 break;
1288         }
1289
1290         TALLOC_FREE(server_info);
1291
1292         return status;
1293 }
1294
1295 /****************************************************************
1296  _netr_LogonSamLogonWithFlags
1297 ****************************************************************/
1298
1299 NTSTATUS _netr_LogonSamLogonWithFlags(pipes_struct *p,
1300                                       struct netr_LogonSamLogonWithFlags *r)
1301 {
1302         NTSTATUS status;
1303         struct netlogon_creds_CredentialState *creds;
1304         struct netr_LogonSamLogonEx r2;
1305         struct netr_Authenticator return_authenticator;
1306
1307         become_root();
1308         status = netr_creds_server_step_check(p, p->mem_ctx,
1309                                               r->in.computer_name,
1310                                               r->in.credential,
1311                                               &return_authenticator,
1312                                               &creds);
1313         unbecome_root();
1314         if (!NT_STATUS_IS_OK(status)) {
1315                 return status;
1316         }
1317
1318         r2.in.server_name       = r->in.server_name;
1319         r2.in.computer_name     = r->in.computer_name;
1320         r2.in.logon_level       = r->in.logon_level;
1321         r2.in.logon             = r->in.logon;
1322         r2.in.validation_level  = r->in.validation_level;
1323         r2.in.flags             = r->in.flags;
1324         r2.out.validation       = r->out.validation;
1325         r2.out.authoritative    = r->out.authoritative;
1326         r2.out.flags            = r->out.flags;
1327
1328         status = _netr_LogonSamLogon_base(p, &r2, creds);
1329
1330         *r->out.return_authenticator = return_authenticator;
1331
1332         return status;
1333 }
1334
1335 /*************************************************************************
1336  _netr_LogonSamLogon
1337  *************************************************************************/
1338
1339 NTSTATUS _netr_LogonSamLogon(pipes_struct *p,
1340                              struct netr_LogonSamLogon *r)
1341 {
1342         NTSTATUS status;
1343         struct netr_LogonSamLogonWithFlags r2;
1344         uint32_t flags = 0;
1345
1346         r2.in.server_name               = r->in.server_name;
1347         r2.in.computer_name             = r->in.computer_name;
1348         r2.in.credential                = r->in.credential;
1349         r2.in.logon_level               = r->in.logon_level;
1350         r2.in.logon                     = r->in.logon;
1351         r2.in.validation_level          = r->in.validation_level;
1352         r2.in.return_authenticator      = r->in.return_authenticator;
1353         r2.in.flags                     = &flags;
1354         r2.out.validation               = r->out.validation;
1355         r2.out.authoritative            = r->out.authoritative;
1356         r2.out.flags                    = &flags;
1357         r2.out.return_authenticator     = r->out.return_authenticator;
1358
1359         status = _netr_LogonSamLogonWithFlags(p, &r2);
1360
1361         return status;
1362 }
1363
1364 /*************************************************************************
1365  _netr_LogonSamLogonEx
1366  - no credential chaining. Map into net sam logon.
1367  *************************************************************************/
1368
1369 NTSTATUS _netr_LogonSamLogonEx(pipes_struct *p,
1370                                struct netr_LogonSamLogonEx *r)
1371 {
1372         NTSTATUS status;
1373         struct netlogon_creds_CredentialState *creds = NULL;
1374
1375         become_root();
1376         status = schannel_fetch_session_key(p->mem_ctx, r->in.computer_name, &creds);
1377         unbecome_root();
1378         if (!NT_STATUS_IS_OK(status)) {
1379                 return status;
1380         }
1381
1382         /* Only allow this if the pipe is protected. */
1383         if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) {
1384                 DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n",
1385                         get_remote_machine_name() ));
1386                 return NT_STATUS_INVALID_PARAMETER;
1387         }
1388
1389         status = _netr_LogonSamLogon_base(p, r, creds);
1390         TALLOC_FREE(creds);
1391
1392         return status;
1393 }
1394
1395 /*************************************************************************
1396  _ds_enum_dom_trusts
1397  *************************************************************************/
1398 #if 0   /* JERRY -- not correct */
1399  NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
1400                              DS_R_ENUM_DOM_TRUSTS *r_u)
1401 {
1402         NTSTATUS status = NT_STATUS_OK;
1403
1404         /* TODO: According to MSDN, the can only be executed against a
1405            DC or domain member running Windows 2000 or later.  Need
1406            to test against a standalone 2k server and see what it
1407            does.  A windows 2000 DC includes its own domain in the
1408            list.  --jerry */
1409
1410         return status;
1411 }
1412 #endif  /* JERRY */
1413
1414
1415 /****************************************************************
1416 ****************************************************************/
1417
1418 WERROR _netr_LogonUasLogon(pipes_struct *p,
1419                            struct netr_LogonUasLogon *r)
1420 {
1421         p->rng_fault_state = true;
1422         return WERR_NOT_SUPPORTED;
1423 }
1424
1425 /****************************************************************
1426 ****************************************************************/
1427
1428 WERROR _netr_LogonUasLogoff(pipes_struct *p,
1429                             struct netr_LogonUasLogoff *r)
1430 {
1431         p->rng_fault_state = true;
1432         return WERR_NOT_SUPPORTED;
1433 }
1434
1435 /****************************************************************
1436 ****************************************************************/
1437
1438 NTSTATUS _netr_DatabaseDeltas(pipes_struct *p,
1439                               struct netr_DatabaseDeltas *r)
1440 {
1441         p->rng_fault_state = true;
1442         return NT_STATUS_NOT_IMPLEMENTED;
1443 }
1444
1445 /****************************************************************
1446 ****************************************************************/
1447
1448 NTSTATUS _netr_DatabaseSync(pipes_struct *p,
1449                             struct netr_DatabaseSync *r)
1450 {
1451         p->rng_fault_state = true;
1452         return NT_STATUS_NOT_IMPLEMENTED;
1453 }
1454
1455 /****************************************************************
1456 ****************************************************************/
1457
1458 NTSTATUS _netr_AccountDeltas(pipes_struct *p,
1459                              struct netr_AccountDeltas *r)
1460 {
1461         p->rng_fault_state = true;
1462         return NT_STATUS_NOT_IMPLEMENTED;
1463 }
1464
1465 /****************************************************************
1466 ****************************************************************/
1467
1468 NTSTATUS _netr_AccountSync(pipes_struct *p,
1469                            struct netr_AccountSync *r)
1470 {
1471         p->rng_fault_state = true;
1472         return NT_STATUS_NOT_IMPLEMENTED;
1473 }
1474
1475 /****************************************************************
1476 ****************************************************************/
1477
1478 static bool wb_getdcname(TALLOC_CTX *mem_ctx,
1479                          const char *domain,
1480                          const char **dcname,
1481                          uint32_t flags,
1482                          WERROR *werr)
1483 {
1484         wbcErr result;
1485         struct wbcDomainControllerInfo *dc_info = NULL;
1486
1487         result = wbcLookupDomainController(domain,
1488                                            flags,
1489                                            &dc_info);
1490         switch (result) {
1491         case WBC_ERR_SUCCESS:
1492                 break;
1493         case WBC_ERR_WINBIND_NOT_AVAILABLE:
1494                 return false;
1495         case WBC_ERR_DOMAIN_NOT_FOUND:
1496                 *werr = WERR_NO_SUCH_DOMAIN;
1497                 return true;
1498         default:
1499                 *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND;
1500                 return true;
1501         }
1502
1503         *dcname = talloc_strdup(mem_ctx, dc_info->dc_name);
1504         wbcFreeMemory(dc_info);
1505         if (!*dcname) {
1506                 *werr = WERR_NOMEM;
1507                 return false;
1508         }
1509
1510         *werr = WERR_OK;
1511
1512         return true;
1513 }
1514
1515 /****************************************************************
1516  _netr_GetDcName
1517 ****************************************************************/
1518
1519 WERROR _netr_GetDcName(pipes_struct *p,
1520                        struct netr_GetDcName *r)
1521 {
1522         NTSTATUS status;
1523         WERROR werr;
1524         uint32_t flags;
1525         struct netr_DsRGetDCNameInfo *info;
1526         bool ret;
1527
1528         ret = wb_getdcname(p->mem_ctx,
1529                            r->in.domainname,
1530                            r->out.dcname,
1531                            WBC_LOOKUP_DC_IS_FLAT_NAME |
1532                            WBC_LOOKUP_DC_RETURN_FLAT_NAME |
1533                            WBC_LOOKUP_DC_PDC_REQUIRED,
1534                            &werr);
1535         if (ret == true) {
1536                 return werr;
1537         }
1538
1539         flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
1540
1541         status = dsgetdcname(p->mem_ctx,
1542                              smbd_messaging_context(),
1543                              r->in.domainname,
1544                              NULL,
1545                              NULL,
1546                              flags,
1547                              &info);
1548         if (!NT_STATUS_IS_OK(status)) {
1549                 return ntstatus_to_werror(status);
1550         }
1551
1552         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
1553         talloc_free(info);
1554         if (!*r->out.dcname) {
1555                 return WERR_NOMEM;
1556         }
1557
1558         return WERR_OK;
1559 }
1560
1561 /****************************************************************
1562  _netr_GetAnyDCName
1563 ****************************************************************/
1564
1565 WERROR _netr_GetAnyDCName(pipes_struct *p,
1566                           struct netr_GetAnyDCName *r)
1567 {
1568         NTSTATUS status;
1569         WERROR werr;
1570         uint32_t flags;
1571         struct netr_DsRGetDCNameInfo *info;
1572         bool ret;
1573
1574         ret = wb_getdcname(p->mem_ctx,
1575                            r->in.domainname,
1576                            r->out.dcname,
1577                            WBC_LOOKUP_DC_IS_FLAT_NAME |
1578                            WBC_LOOKUP_DC_RETURN_FLAT_NAME,
1579                            &werr);
1580         if (ret == true) {
1581                 return werr;
1582         }
1583
1584         flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME;
1585
1586         status = dsgetdcname(p->mem_ctx,
1587                              smbd_messaging_context(),
1588                              r->in.domainname,
1589                              NULL,
1590                              NULL,
1591                              flags,
1592                              &info);
1593         if (!NT_STATUS_IS_OK(status)) {
1594                 return ntstatus_to_werror(status);
1595         }
1596
1597         *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc);
1598         talloc_free(info);
1599         if (!*r->out.dcname) {
1600                 return WERR_NOMEM;
1601         }
1602
1603         return WERR_OK;
1604 }
1605
1606 /****************************************************************
1607 ****************************************************************/
1608
1609 NTSTATUS _netr_DatabaseSync2(pipes_struct *p,
1610                              struct netr_DatabaseSync2 *r)
1611 {
1612         p->rng_fault_state = true;
1613         return NT_STATUS_NOT_IMPLEMENTED;
1614 }
1615
1616 /****************************************************************
1617 ****************************************************************/
1618
1619 NTSTATUS _netr_DatabaseRedo(pipes_struct *p,
1620                             struct netr_DatabaseRedo *r)
1621 {
1622         p->rng_fault_state = true;
1623         return NT_STATUS_NOT_IMPLEMENTED;
1624 }
1625
1626 /****************************************************************
1627 ****************************************************************/
1628
1629 WERROR _netr_DsRGetDCName(pipes_struct *p,
1630                           struct netr_DsRGetDCName *r)
1631 {
1632         p->rng_fault_state = true;
1633         return WERR_NOT_SUPPORTED;
1634 }
1635
1636 /****************************************************************
1637 ****************************************************************/
1638
1639 NTSTATUS _netr_LogonGetCapabilities(pipes_struct *p,
1640                                     struct netr_LogonGetCapabilities *r)
1641 {
1642         return NT_STATUS_NOT_IMPLEMENTED;
1643 }
1644
1645 /****************************************************************
1646 ****************************************************************/
1647
1648 WERROR _netr_NETRLOGONSETSERVICEBITS(pipes_struct *p,
1649                                      struct netr_NETRLOGONSETSERVICEBITS *r)
1650 {
1651         p->rng_fault_state = true;
1652         return WERR_NOT_SUPPORTED;
1653 }
1654
1655 /****************************************************************
1656 ****************************************************************/
1657
1658 WERROR _netr_LogonGetTrustRid(pipes_struct *p,
1659                               struct netr_LogonGetTrustRid *r)
1660 {
1661         p->rng_fault_state = true;
1662         return WERR_NOT_SUPPORTED;
1663 }
1664
1665 /****************************************************************
1666 ****************************************************************/
1667
1668 WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(pipes_struct *p,
1669                                           struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
1670 {
1671         p->rng_fault_state = true;
1672         return WERR_NOT_SUPPORTED;
1673 }
1674
1675 /****************************************************************
1676 ****************************************************************/
1677
1678 WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(pipes_struct *p,
1679                                           struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
1680 {
1681         p->rng_fault_state = true;
1682         return WERR_NOT_SUPPORTED;
1683 }
1684
1685 /****************************************************************
1686 ****************************************************************/
1687
1688 WERROR _netr_DsRGetDCNameEx(pipes_struct *p,
1689                             struct netr_DsRGetDCNameEx *r)
1690 {
1691         p->rng_fault_state = true;
1692         return WERR_NOT_SUPPORTED;
1693 }
1694
1695 /****************************************************************
1696 ****************************************************************/
1697
1698 WERROR _netr_DsRGetSiteName(pipes_struct *p,
1699                             struct netr_DsRGetSiteName *r)
1700 {
1701         p->rng_fault_state = true;
1702         return WERR_NOT_SUPPORTED;
1703 }
1704
1705 /****************************************************************
1706 ****************************************************************/
1707
1708 NTSTATUS _netr_LogonGetDomainInfo(pipes_struct *p,
1709                                   struct netr_LogonGetDomainInfo *r)
1710 {
1711         p->rng_fault_state = true;
1712         return NT_STATUS_NOT_IMPLEMENTED;
1713 }
1714
1715 /****************************************************************
1716 ****************************************************************/
1717
1718 WERROR _netr_ServerPasswordGet(pipes_struct *p,
1719                                struct netr_ServerPasswordGet *r)
1720 {
1721         p->rng_fault_state = true;
1722         return WERR_NOT_SUPPORTED;
1723 }
1724
1725 /****************************************************************
1726 ****************************************************************/
1727
1728 WERROR _netr_NETRLOGONSENDTOSAM(pipes_struct *p,
1729                                 struct netr_NETRLOGONSENDTOSAM *r)
1730 {
1731         p->rng_fault_state = true;
1732         return WERR_NOT_SUPPORTED;
1733 }
1734
1735 /****************************************************************
1736 ****************************************************************/
1737
1738 WERROR _netr_DsRAddressToSitenamesW(pipes_struct *p,
1739                                     struct netr_DsRAddressToSitenamesW *r)
1740 {
1741         p->rng_fault_state = true;
1742         return WERR_NOT_SUPPORTED;
1743 }
1744
1745 /****************************************************************
1746 ****************************************************************/
1747
1748 WERROR _netr_DsRGetDCNameEx2(pipes_struct *p,
1749                              struct netr_DsRGetDCNameEx2 *r)
1750 {
1751         p->rng_fault_state = true;
1752         return WERR_NOT_SUPPORTED;
1753 }
1754
1755 /****************************************************************
1756 ****************************************************************/
1757
1758 WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(pipes_struct *p,
1759                                                  struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
1760 {
1761         p->rng_fault_state = true;
1762         return WERR_NOT_SUPPORTED;
1763 }
1764
1765 /****************************************************************
1766 ****************************************************************/
1767
1768 WERROR _netr_NetrEnumerateTrustedDomainsEx(pipes_struct *p,
1769                                            struct netr_NetrEnumerateTrustedDomainsEx *r)
1770 {
1771         p->rng_fault_state = true;
1772         return WERR_NOT_SUPPORTED;
1773 }
1774
1775 /****************************************************************
1776 ****************************************************************/
1777
1778 WERROR _netr_DsRAddressToSitenamesExW(pipes_struct *p,
1779                                       struct netr_DsRAddressToSitenamesExW *r)
1780 {
1781         p->rng_fault_state = true;
1782         return WERR_NOT_SUPPORTED;
1783 }
1784
1785 /****************************************************************
1786 ****************************************************************/
1787
1788 WERROR _netr_DsrGetDcSiteCoverageW(pipes_struct *p,
1789                                    struct netr_DsrGetDcSiteCoverageW *r)
1790 {
1791         p->rng_fault_state = true;
1792         return WERR_NOT_SUPPORTED;
1793 }
1794
1795 /****************************************************************
1796 ****************************************************************/
1797
1798 WERROR _netr_DsrEnumerateDomainTrusts(pipes_struct *p,
1799                                       struct netr_DsrEnumerateDomainTrusts *r)
1800 {
1801         p->rng_fault_state = true;
1802         return WERR_NOT_SUPPORTED;
1803 }
1804
1805 /****************************************************************
1806 ****************************************************************/
1807
1808 WERROR _netr_DsrDeregisterDNSHostRecords(pipes_struct *p,
1809                                          struct netr_DsrDeregisterDNSHostRecords *r)
1810 {
1811         p->rng_fault_state = true;
1812         return WERR_NOT_SUPPORTED;
1813 }
1814
1815 /****************************************************************
1816 ****************************************************************/
1817
1818 NTSTATUS _netr_ServerTrustPasswordsGet(pipes_struct *p,
1819                                        struct netr_ServerTrustPasswordsGet *r)
1820 {
1821         p->rng_fault_state = true;
1822         return NT_STATUS_NOT_IMPLEMENTED;
1823 }
1824
1825 /****************************************************************
1826 ****************************************************************/
1827
1828 WERROR _netr_DsRGetForestTrustInformation(pipes_struct *p,
1829                                           struct netr_DsRGetForestTrustInformation *r)
1830 {
1831         p->rng_fault_state = true;
1832         return WERR_NOT_SUPPORTED;
1833 }
1834
1835 /****************************************************************
1836 ****************************************************************/
1837
1838 WERROR _netr_GetForestTrustInformation(pipes_struct *p,
1839                                        struct netr_GetForestTrustInformation *r)
1840 {
1841         p->rng_fault_state = true;
1842         return WERR_NOT_SUPPORTED;
1843 }
1844
1845 /****************************************************************
1846 ****************************************************************/
1847
1848 NTSTATUS _netr_ServerGetTrustInfo(pipes_struct *p,
1849                                   struct netr_ServerGetTrustInfo *r)
1850 {
1851         p->rng_fault_state = true;
1852         return NT_STATUS_NOT_IMPLEMENTED;
1853 }
1854