source/auth/auth_util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Authentication utility functions
   4    Copyright (C) Andrew Tridgell 1992-1998
   5    Copyright (C) Andrew Bartlett 2001
   6    Copyright (C) Jeremy Allison 2000-2001
   7    Copyright (C) Rafal Szczesniak 2002
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_AUTH
  28
  29 extern DOM_SID global_sid_World;
  30 extern DOM_SID global_sid_Network;
  31 extern DOM_SID global_sid_Builtin_Guests;
  32 extern DOM_SID global_sid_Authenticated_Users;
  33
  34
  35 /****************************************************************************
  36  Create a UNIX user on demand.
  37 ****************************************************************************/
  38
  39 static int smb_create_user(const char *domain, const char *unix_username, const char *homedir)
  40 {
  41         pstring add_script;
  42         int ret;
  43
  44         pstrcpy(add_script, lp_adduser_script());
  45         if (! *add_script)
  46                 return -1;
  47         all_string_sub(add_script, "%u", unix_username, sizeof(pstring));
  48         if (domain)
  49                 all_string_sub(add_script, "%D", domain, sizeof(pstring));
  50         if (homedir)
  51                 all_string_sub(add_script, "%H", homedir, sizeof(pstring));
  52         ret = smbrun(add_script,NULL);
  53         DEBUG(3,("smb_create_user: Running the command `%s' gave %d\n",add_script,ret));
  54         return ret;
  55 }
  56
  57 /****************************************************************************
  58  Add and Delete UNIX users on demand, based on NTSTATUS codes.
  59 ****************************************************************************/
  60
  61 void auth_add_user_script(const char *domain, const char *username)
  62 {
  63         struct passwd *pwd=NULL;
  64
  65         /*
  66          * User validated ok against Domain controller.
  67          * If the admin wants us to try and create a UNIX
  68          * user on the fly, do so.
  69          */
  70
  71         if(lp_adduser_script() && !(pwd = Get_Pwnam(username))) {
  72                 smb_create_user(domain, username, NULL);
  73         }
  74 }
  75
  76 /****************************************************************************
  77  Create a SAM_ACCOUNT - either by looking in the pdb, or by faking it up from
  78  unix info.
  79 ****************************************************************************/
  80
  81 NTSTATUS auth_get_sam_account(const char *user, SAM_ACCOUNT **account)
  82 {
  83         BOOL pdb_ret;
  84         NTSTATUS nt_status;
  85         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(account))) {
  86                 return nt_status;
  87         }
  88
  89         become_root();
  90         pdb_ret = pdb_getsampwnam(*account, user);
  91         unbecome_root();
  92
  93         if (!pdb_ret) {
  94
  95                 struct passwd *pass = Get_Pwnam(user);
  96                 if (!pass)
  97                         return NT_STATUS_NO_SUCH_USER;
  98
  99                 if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*account, pass))) {
 100                         return nt_status;
 101                 }
 102         }
 103         return NT_STATUS_OK;
 104 }
 105
 106 /****************************************************************************
 107  Create an auth_usersupplied_data structure
 108 ****************************************************************************/
 109
 110 static NTSTATUS make_user_info(auth_usersupplied_info **user_info,
 111                                const char *smb_name,
 112                                const char *internal_username,
 113                                const char *client_domain,
 114                                const char *domain,
 115                                const char *wksta_name,
 116                                DATA_BLOB lm_pwd, DATA_BLOB nt_pwd,
 117                                DATA_BLOB plaintext,
 118                                uint32 auth_flags, BOOL encrypted)
 119 {
 120
 121         DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
 122
 123         *user_info = malloc(sizeof(**user_info));
 124         if (!user_info) {
 125                 DEBUG(0,("malloc failed for user_info (size %d)\n", sizeof(*user_info)));
 126                 return NT_STATUS_NO_MEMORY;
 127         }
 128
 129         ZERO_STRUCTP(*user_info);
 130
 131         DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
 132
 133         (*user_info)->smb_name.str = strdup(smb_name);
 134         if ((*user_info)->smb_name.str) {
 135                 (*user_info)->smb_name.len = strlen(smb_name);
 136         } else {
 137                 free_user_info(user_info);
 138                 return NT_STATUS_NO_MEMORY;
 139         }
 140
 141         (*user_info)->internal_username.str = strdup(internal_username);
 142         if ((*user_info)->internal_username.str) {
 143                 (*user_info)->internal_username.len = strlen(internal_username);
 144         } else {
 145                 free_user_info(user_info);
 146                 return NT_STATUS_NO_MEMORY;
 147         }
 148
 149         (*user_info)->domain.str = strdup(domain);
 150         if ((*user_info)->domain.str) {
 151                 (*user_info)->domain.len = strlen(domain);
 152         } else {
 153                 free_user_info(user_info);
 154                 return NT_STATUS_NO_MEMORY;
 155         }
 156
 157         (*user_info)->client_domain.str = strdup(client_domain);
 158         if ((*user_info)->client_domain.str) {
 159                 (*user_info)->client_domain.len = strlen(client_domain);
 160         } else {
 161                 free_user_info(user_info);
 162                 return NT_STATUS_NO_MEMORY;
 163         }
 164
 165         (*user_info)->wksta_name.str = strdup(wksta_name);
 166         if ((*user_info)->wksta_name.str) {
 167                 (*user_info)->wksta_name.len = strlen(wksta_name);
 168         } else {
 169                 free_user_info(user_info);
 170                 return NT_STATUS_NO_MEMORY;
 171         }
 172
 173         DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
 174
 175         (*user_info)->lm_resp = data_blob(lm_pwd.data, lm_pwd.length);
 176         (*user_info)->nt_resp = data_blob(nt_pwd.data, nt_pwd.length);
 177         (*user_info)->plaintext_password = data_blob(plaintext.data, plaintext.length);
 178
 179         (*user_info)->encrypted = encrypted;
 180         (*user_info)->auth_flags = auth_flags;
 181
 182         DEBUG(10,("made an %sencrypted user_info for %s (%s)\n", encrypted ? "":"un" , internal_username, smb_name));
 183
 184         return NT_STATUS_OK;
 185 }
 186
 187 /****************************************************************************
 188  Create an auth_usersupplied_data structure after appropriate mapping.
 189 ****************************************************************************/
 190
 191 NTSTATUS make_user_info_map(auth_usersupplied_info **user_info,
 192                             const char *smb_name,
 193                             const char *client_domain,
 194                             const char *wksta_name,
 195                             DATA_BLOB lm_pwd, DATA_BLOB nt_pwd,
 196                             DATA_BLOB plaintext,
 197                             uint32 ntlmssp_flags, BOOL encrypted)
 198 {
 199         const char *domain;
 200         fstring internal_username;
 201         fstrcpy(internal_username, smb_name);
 202         map_username(internal_username);
 203
 204         DEBUG(5, ("make_user_info_map: Mapping user [%s]\\[%s] from workstation [%s]\n",
 205               client_domain, smb_name, wksta_name));
 206
 207         if (lp_allow_trusted_domains() && *client_domain) {
 208
 209                 /* the client could have given us a workstation name
 210                    or other crap for the workgroup - we really need a
 211                    way of telling if this domain name is one of our
 212                    trusted domain names
 213
 214                    Also don't allow "" as a domain, fixes a Win9X bug
 215                    where it doens't supply a domain for logon script
 216                    'net use' commands.
 217
 218                    Finally, we do this by looking up a cache of trusted domains!
 219                 */
 220
 221                 domain = client_domain;
 222
 223                 if (is_trusted_domain(domain)) {
 224                         return make_user_info(user_info, smb_name, internal_username,
 225                                               client_domain, domain, wksta_name,
 226                                               lm_pwd, nt_pwd, plaintext, ntlmssp_flags,
 227                                               encrypted);
 228                 }
 229
 230         } else {
 231                 domain = lp_workgroup();
 232         }
 233
 234         return make_user_info(user_info,
 235                               smb_name, internal_username,
 236                               client_domain, domain,
 237                               wksta_name,
 238                               lm_pwd, nt_pwd,
 239                               plaintext,
 240                               ntlmssp_flags, encrypted);
 241
 242 }
 243
 244 /****************************************************************************
 245  Create an auth_usersupplied_data, making the DATA_BLOBs here.
 246  Decrypt and encrypt the passwords.
 247 ****************************************************************************/
 248
 249 BOOL make_user_info_netlogon_network(auth_usersupplied_info **user_info,
 250                                      const char *smb_name,
 251                                      const char *client_domain,
 252                                      const char *wksta_name,
 253                                      const uchar *lm_network_pwd, int lm_pwd_len,
 254                                      const uchar *nt_network_pwd, int nt_pwd_len)
 255 {
 256         BOOL ret;
 257         NTSTATUS nt_status;
 258         DATA_BLOB lm_blob = data_blob(lm_network_pwd, lm_pwd_len);
 259         DATA_BLOB nt_blob = data_blob(nt_network_pwd, nt_pwd_len);
 260         DATA_BLOB plaintext_blob = data_blob(NULL, 0);
 261         uint32 auth_flags = AUTH_FLAG_NONE;
 262
 263         if (lm_pwd_len)
 264                 auth_flags |= AUTH_FLAG_LM_RESP;
 265         if (nt_pwd_len == 24) {
 266                 auth_flags |= AUTH_FLAG_NTLM_RESP;
 267         } else if (nt_pwd_len != 0) {
 268                 auth_flags |= AUTH_FLAG_NTLMv2_RESP;
 269         }
 270
 271         nt_status = make_user_info_map(user_info,
 272                                       smb_name, client_domain,
 273                                   wksta_name,
 274                                       lm_blob, nt_blob,
 275                                       plaintext_blob,
 276                                       auth_flags, True);
 277
 278         ret = NT_STATUS_IS_OK(nt_status) ? True : False;
 279
 280         data_blob_free(&lm_blob);
 281         data_blob_free(&nt_blob);
 282         return ret;
 283 }
 284
 285 /****************************************************************************
 286  Create an auth_usersupplied_data, making the DATA_BLOBs here.
 287  Decrypt and encrypt the passwords.
 288 ****************************************************************************/
 289
 290 BOOL make_user_info_netlogon_interactive(auth_usersupplied_info **user_info,
 291                                          const char *smb_name,
 292                                          const char *client_domain,
 293                                          const char *wksta_name,
 294                                          const uchar chal[8],
 295                                          const uchar lm_interactive_pwd[16],
 296                                          const uchar nt_interactive_pwd[16],
 297                                          const uchar *dc_sess_key)
 298 {
 299         char lm_pwd[16];
 300         char nt_pwd[16];
 301         unsigned char local_lm_response[24];
 302         unsigned char local_nt_response[24];
 303         unsigned char key[16];
 304         uint32 auth_flags = AUTH_FLAG_NONE;
 305
 306         ZERO_STRUCT(key);
 307         memcpy(key, dc_sess_key, 8);
 308
 309         if (lm_interactive_pwd) memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
 310         if (nt_interactive_pwd) memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
 311
 312 #ifdef DEBUG_PASSWORD
 313         DEBUG(100,("key:"));
 314         dump_data(100, (char *)key, sizeof(key));
 315
 316         DEBUG(100,("lm owf password:"));
 317         dump_data(100, lm_pwd, sizeof(lm_pwd));
 318
 319         DEBUG(100,("nt owf password:"));
 320         dump_data(100, nt_pwd, sizeof(nt_pwd));
 321 #endif
 322
 323         SamOEMhash((uchar *)lm_pwd, key, sizeof(lm_pwd));
 324         SamOEMhash((uchar *)nt_pwd, key, sizeof(nt_pwd));
 325
 326 #ifdef DEBUG_PASSWORD
 327         DEBUG(100,("decrypt of lm owf password:"));
 328         dump_data(100, lm_pwd, sizeof(lm_pwd));
 329
 330         DEBUG(100,("decrypt of nt owf password:"));
 331         dump_data(100, nt_pwd, sizeof(nt_pwd));
 332 #endif
 333
 334         SMBOWFencrypt((const unsigned char *)lm_pwd, chal, local_lm_response);
 335         SMBOWFencrypt((const unsigned char *)nt_pwd, chal, local_nt_response);
 336
 337         /* Password info paranoia */
 338         ZERO_STRUCT(lm_pwd);
 339         ZERO_STRUCT(nt_pwd);
 340         ZERO_STRUCT(key);
 341
 342         {
 343                 BOOL ret;
 344                 NTSTATUS nt_status;
 345                 DATA_BLOB local_lm_blob = data_blob(local_lm_response, sizeof(local_lm_response));
 346                 DATA_BLOB local_nt_blob = data_blob(local_nt_response, sizeof(local_nt_response));
 347                 DATA_BLOB plaintext_blob = data_blob(NULL, 0);
 348
 349                 if (lm_interactive_pwd)
 350                         auth_flags |= AUTH_FLAG_LM_RESP;
 351                 if (nt_interactive_pwd)
 352                         auth_flags |= AUTH_FLAG_NTLM_RESP;
 353
 354                 nt_status = make_user_info_map(user_info,
 355                                                smb_name, client_domain,
 356                                                wksta_name,
 357                                                local_lm_blob,
 358                                                local_nt_blob,
 359                                                plaintext_blob,
 360                                                auth_flags, True);
 361
 362                 ret = NT_STATUS_IS_OK(nt_status) ? True : False;
 363                 data_blob_free(&local_lm_blob);
 364                 data_blob_free(&local_nt_blob);
 365                 return ret;
 366         }
 367 }
 368
 369
 370 /****************************************************************************
 371  Create an auth_usersupplied_data structure
 372 ****************************************************************************/
 373
 374 BOOL make_user_info_for_reply(auth_usersupplied_info **user_info,
 375                               const char *smb_name,
 376                               const char *client_domain,
 377                               const uint8 chal[8],
 378                               DATA_BLOB plaintext_password)
 379 {
 380
 381         DATA_BLOB local_lm_blob;
 382         DATA_BLOB local_nt_blob;
 383         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 384         uint32 auth_flags = AUTH_FLAG_NONE;
 385
 386         /*
 387          * Not encrypted - do so.
 388          */
 389
 390         DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted format.\n"));
 391
 392         if (plaintext_password.data) {
 393                 unsigned char local_lm_response[24];
 394
 395 #ifdef DEBUG_PASSWORD
 396                 DEBUG(10,("Unencrypted password (len %d):\n",plaintext_password.length));
 397                 dump_data(100, plaintext_password.data, plaintext_password.length);
 398 #endif
 399
 400                 SMBencrypt( (const uchar *)plaintext_password.data, (const uchar*)chal, local_lm_response);
 401                 local_lm_blob = data_blob(local_lm_response, 24);
 402
 403                 /* We can't do an NT hash here, as the password needs to be
 404                    case insensitive */
 405                 local_nt_blob = data_blob(NULL, 0);
 406
 407                 auth_flags = (AUTH_FLAG_PLAINTEXT | AUTH_FLAG_LM_RESP);
 408         } else {
 409                 local_lm_blob = data_blob(NULL, 0);
 410                 local_nt_blob = data_blob(NULL, 0);
 411         }
 412
 413         ret = make_user_info_map(user_info, smb_name,
 414                                  client_domain,
 415                                  get_remote_machine_name(),
 416                                  local_lm_blob,
 417                                  local_nt_blob,
 418                                  plaintext_password,
 419                                  auth_flags, False);
 420
 421         data_blob_free(&local_lm_blob);
 422         return NT_STATUS_IS_OK(ret) ? True : False;
 423 }
 424
 425 /****************************************************************************
 426  Create an auth_usersupplied_data structure
 427 ****************************************************************************/
 428
 429 NTSTATUS make_user_info_for_reply_enc(auth_usersupplied_info **user_info,
 430                                       const char *smb_name,
 431                                       const char *client_domain,
 432                                       DATA_BLOB lm_resp, DATA_BLOB nt_resp)
 433 {
 434         uint32 auth_flags = AUTH_FLAG_NONE;
 435
 436         DATA_BLOB no_plaintext_blob = data_blob(NULL, 0);
 437
 438         if (lm_resp.length == 24) {
 439                 auth_flags |= AUTH_FLAG_LM_RESP;
 440         }
 441         if (nt_resp.length == 0) {
 442         } else if (nt_resp.length == 24) {
 443                 auth_flags |= AUTH_FLAG_NTLM_RESP;
 444         } else {
 445                 auth_flags |= AUTH_FLAG_NTLMv2_RESP;
 446         }
 447
 448         return make_user_info_map(user_info, smb_name,
 449                                  client_domain,
 450                                  get_remote_machine_name(),
 451                                  lm_resp,
 452                                  nt_resp,
 453                                  no_plaintext_blob,
 454                                  auth_flags, True);
 455 }
 456
 457 /****************************************************************************
 458  Create a guest user_info blob, for anonymous authenticaion.
 459 ****************************************************************************/
 460
 461 BOOL make_user_info_guest(auth_usersupplied_info **user_info)
 462 {
 463         DATA_BLOB lm_blob = data_blob(NULL, 0);
 464         DATA_BLOB nt_blob = data_blob(NULL, 0);
 465         DATA_BLOB plaintext_blob = data_blob(NULL, 0);
 466         uint32 auth_flags = AUTH_FLAG_NONE;
 467         NTSTATUS nt_status;
 468
 469         nt_status = make_user_info(user_info,
 470                               "","",
 471                               "","",
 472                               "",
 473                               nt_blob, lm_blob,
 474                               plaintext_blob,
 475                               auth_flags, True);
 476
 477         return NT_STATUS_IS_OK(nt_status) ? True : False;
 478 }
 479
 480 /****************************************************************************
 481  prints a NT_USER_TOKEN to debug output.
 482 ****************************************************************************/
 483
 484 void debug_nt_user_token(int dbg_class, int dbg_lev, NT_USER_TOKEN *token)
 485 {
 486         fstring sid_str;
 487         size_t     i;
 488
 489         if (!token) {
 490                 DEBUGC(dbg_class, dbg_lev, ("NT user token: (NULL)\n"));
 491                 return;
 492         }
 493
 494         DEBUGC(dbg_class, dbg_lev, ("NT user token of user %s\n",
 495                                     sid_to_string(sid_str, &token->user_sids[0]) ));
 496         DEBUGADDC(dbg_class, dbg_lev, ("contains %i SIDs\n", token->num_sids));
 497         for (i = 0; i < token->num_sids; i++)
 498                 DEBUGADDC(dbg_class, dbg_lev, ("SID[%3i]: %s\n", i,
 499                                                sid_to_string(sid_str, &token->user_sids[i])));
 500 }
 501
 502 /****************************************************************************
 503  prints a UNIX 'token' to debug output.
 504 ****************************************************************************/
 505
 506 void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid, int n_groups, gid_t *groups)
 507 {
 508         int     i;
 509         DEBUGC(dbg_class, dbg_lev, ("UNIX token of user %ld\n", (long int)uid));
 510
 511         DEBUGADDC(dbg_class, dbg_lev, ("Primary group is %ld and contains %i supplementary groups\n", (long int)gid, n_groups));
 512         for (i = 0; i < n_groups; i++)
 513                 DEBUGADDC(dbg_class, dbg_lev, ("Group[%3i]: %ld\n", i,
 514                         (long int)groups[i]));
 515 }
 516
 517 /****************************************************************************
 518  Create the SID list for this user.
 519 ****************************************************************************/
 520
 521 static NTSTATUS create_nt_user_token(const DOM_SID *user_sid, const DOM_SID *group_sid,
 522                                      int n_groupSIDs, DOM_SID *groupSIDs,
 523                                      BOOL is_guest, NT_USER_TOKEN **token)
 524 {
 525         NTSTATUS       nt_status = NT_STATUS_OK;
 526         NT_USER_TOKEN *ptoken;
 527         int i;
 528         int sid_ndx;
 529
 530         if ((ptoken = malloc( sizeof(NT_USER_TOKEN) ) ) == NULL) {
 531                 DEBUG(0, ("create_nt_token: Out of memory allocating token\n"));
 532                 nt_status = NT_STATUS_NO_MEMORY;
 533                 return nt_status;
 534         }
 535
 536         ZERO_STRUCTP(ptoken);
 537
 538         ptoken->num_sids = n_groupSIDs + 5;
 539
 540         if ((ptoken->user_sids = (DOM_SID *)malloc( sizeof(DOM_SID) * ptoken->num_sids )) == NULL) {
 541                 DEBUG(0, ("create_nt_token: Out of memory allocating SIDs\n"));
 542                 nt_status = NT_STATUS_NO_MEMORY;
 543                 return nt_status;
 544         }
 545
 546         memset((char*)ptoken->user_sids,0,sizeof(DOM_SID) * ptoken->num_sids);
 547
 548         /*
 549          * Note - user SID *MUST* be first in token !
 550          * se_access_check depends on this.
 551          *
 552          * Primary group SID is second in token. Convention.
 553          */
 554
 555         sid_copy(&ptoken->user_sids[PRIMARY_USER_SID_INDEX], user_sid);
 556         if (group_sid)
 557                 sid_copy(&ptoken->user_sids[PRIMARY_GROUP_SID_INDEX], group_sid);
 558
 559         /*
 560          * Finally add the "standard" SIDs.
 561          * The only difference between guest and "anonymous" (which we
 562          * don't really support) is the addition of Authenticated_Users.
 563          */
 564
 565         sid_copy(&ptoken->user_sids[2], &global_sid_World);
 566         sid_copy(&ptoken->user_sids[3], &global_sid_Network);
 567
 568         if (is_guest)
 569                 sid_copy(&ptoken->user_sids[4], &global_sid_Builtin_Guests);
 570         else
 571                 sid_copy(&ptoken->user_sids[4], &global_sid_Authenticated_Users);
 572
 573         sid_ndx = 5; /* next available spot */
 574
 575         for (i = 0; i < n_groupSIDs; i++) {
 576                 size_t check_sid_idx;
 577                 for (check_sid_idx = 1; check_sid_idx < ptoken->num_sids; check_sid_idx++) {
 578                         if (sid_equal(&ptoken->user_sids[check_sid_idx],
 579                                       &groupSIDs[i])) {
 580                                 break;
 581                         }
 582                 }
 583
 584                 if (check_sid_idx >= ptoken->num_sids) /* Not found already */ {
 585                         sid_copy(&ptoken->user_sids[sid_ndx++], &groupSIDs[i]);
 586                 } else {
 587                         ptoken->num_sids--;
 588                 }
 589         }
 590
 591         debug_nt_user_token(DBGC_AUTH, 10, ptoken);
 592
 593         *token = ptoken;
 594
 595         return nt_status;
 596 }
 597
 598 /****************************************************************************
 599  Create the SID list for this user.
 600 ****************************************************************************/
 601
 602 NT_USER_TOKEN *create_nt_token(uid_t uid, gid_t gid, int ngroups, gid_t *groups, BOOL is_guest)
 603 {
 604         DOM_SID user_sid;
 605         DOM_SID group_sid;
 606         DOM_SID *group_sids;
 607         NT_USER_TOKEN *token;
 608         int i;
 609
 610         if (NT_STATUS_IS_ERR(uid_to_sid(&user_sid, uid))) {
 611                 return NULL;
 612         }
 613         if (NT_STATUS_IS_ERR(gid_to_sid(&group_sid, gid))) {
 614                 return NULL;
 615         }
 616
 617         group_sids = malloc(sizeof(DOM_SID) * ngroups);
 618         if (!group_sids) {
 619                 DEBUG(0, ("create_nt_token: malloc() failed for DOM_SID list!\n"));
 620                 return NULL;
 621         }
 622
 623         for (i = 0; i < ngroups; i++) {
 624                 if (NT_STATUS_IS_ERR(gid_to_sid(&(group_sids)[i], (groups)[i]))) {
 625                         DEBUG(1, ("create_nt_token: failed to convert gid %ld to a sid!\n", (long int)groups[i]));
 626                         SAFE_FREE(group_sids);
 627                         return NULL;
 628                 }
 629         }
 630
 631         if (!NT_STATUS_IS_OK(create_nt_user_token(&user_sid, &group_sid,
 632                                                   ngroups, group_sids, is_guest, &token))) {
 633                 SAFE_FREE(group_sids);
 634                 return NULL;
 635         }
 636
 637         SAFE_FREE(group_sids);
 638
 639         return token;
 640 }
 641
 642 /******************************************************************************
 643  * this function returns the groups (SIDs) of the local SAM the user is in.
 644  * If this samba server is a DC of the domain the user belongs to, it returns
 645  * both domain groups and local / builtin groups. If the user is in a trusted
 646  * domain, or samba is a member server of a domain, then this function returns
 647  * local and builtin groups the user is a member of.
 648  *
 649  * currently this is a hack, as there is no sam implementation that is capable
 650  * of groups.
 651  ******************************************************************************/
 652
 653 static NTSTATUS get_user_groups_from_local_sam(SAM_ACCOUNT *sampass,
 654                                                int *n_groups, DOM_SID **groups, gid_t **unix_groups)
 655 {
 656         uid_t             uid;
 657         gid_t             gid;
 658         int               n_unix_groups;
 659         int               i;
 660
 661         *n_groups = 0;
 662         *groups   = NULL;
 663
 664         if (NT_STATUS_IS_ERR(sid_to_uid(pdb_get_user_sid(sampass), &uid)) || NT_STATUS_IS_ERR(sid_to_gid(pdb_get_group_sid(sampass), &gid))) {
 665                 DEBUG(0, ("get_user_groups_from_local_sam: error fetching uid or gid for user!\n"));
 666                 return NT_STATUS_UNSUCCESSFUL;
 667         }
 668
 669         n_unix_groups = groups_max();
 670         if ((*unix_groups = malloc( sizeof(gid_t) * n_unix_groups ) ) == NULL) {
 671                 DEBUG(0, ("get_user_groups_from_local_sam: Out of memory allocating unix group list\n"));
 672                 return NT_STATUS_NO_MEMORY;
 673         }
 674
 675         if (sys_getgrouplist(pdb_get_username(sampass), gid, *unix_groups, &n_unix_groups) == -1) {
 676                 gid_t *groups_tmp;
 677                 groups_tmp = Realloc(*unix_groups, sizeof(gid_t) * n_unix_groups);
 678                 if (!groups_tmp) {
 679                         SAFE_FREE(*unix_groups);
 680                         return NT_STATUS_NO_MEMORY;
 681                 }
 682                 *unix_groups = groups_tmp;
 683
 684                 if (sys_getgrouplist(pdb_get_username(sampass), gid, *unix_groups, &n_unix_groups) == -1) {
 685                         DEBUG(0, ("get_user_groups_from_local_sam: failed to get the unix group list\n"));
 686                         SAFE_FREE(*unix_groups);
 687                         return NT_STATUS_NO_SUCH_USER; /* what should this return value be? */
 688                 }
 689         }
 690
 691         debug_unix_user_token(DBGC_CLASS, 5, uid, gid, n_unix_groups, *unix_groups);
 692
 693         if (n_unix_groups > 0) {
 694                 *groups   = malloc(sizeof(DOM_SID) * n_unix_groups);
 695                 if (!*groups) {
 696                         DEBUG(0, ("get_user_group_from_local_sam: malloc() failed for DOM_SID list!\n"));
 697                         SAFE_FREE(*unix_groups);
 698                         return NT_STATUS_NO_MEMORY;
 699                 }
 700         }
 701
 702         *n_groups = n_unix_groups;
 703
 704         for (i = 0; i < *n_groups; i++) {
 705                 if (NT_STATUS_IS_ERR(gid_to_sid(&(*groups)[i], (*unix_groups)[i]))) {
 706                         DEBUG(1, ("get_user_groups_from_local_sam: failed to convert gid %ld to a sid!\n", (long int)(*unix_groups)[i+1]));
 707                         SAFE_FREE(*groups);
 708                         SAFE_FREE(*unix_groups);
 709                         return NT_STATUS_NO_SUCH_USER;
 710                 }
 711         }
 712
 713         return NT_STATUS_OK;
 714 }
 715
 716 /***************************************************************************
 717  Make a user_info struct
 718 ***************************************************************************/
 719
 720 static NTSTATUS make_server_info(auth_serversupplied_info **server_info, SAM_ACCOUNT *sampass)
 721 {
 722         NTSTATUS ret;
 723
 724         *server_info = malloc(sizeof(**server_info));
 725         if (!*server_info) {
 726                 DEBUG(0,("make_server_info: malloc failed!\n"));
 727                 return NT_STATUS_NO_MEMORY;
 728         }
 729         ZERO_STRUCTP(*server_info);
 730
 731         (*server_info)->sam_fill_level = SAM_FILL_ALL;
 732         (*server_info)->sam_account    = sampass;
 733         if (NT_STATUS_IS_ERR(ret = sid_to_uid(pdb_get_user_sid(sampass), &((*server_info)->uid))))
 734                 return ret;
 735         if (NT_STATUS_IS_ERR(ret = sid_to_gid(pdb_get_group_sid(sampass), &((*server_info)->gid))))
 736                 return ret;
 737
 738         return NT_STATUS_OK;
 739 }
 740
 741 /***************************************************************************
 742  Make (and fill) a user_info struct from a SAM_ACCOUNT
 743 ***************************************************************************/
 744
 745 NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
 746                               SAM_ACCOUNT *sampass)
 747 {
 748         NTSTATUS nt_status = NT_STATUS_OK;
 749         const DOM_SID *user_sid = pdb_get_user_sid(sampass);
 750         const DOM_SID *group_sid = pdb_get_group_sid(sampass);
 751         int       n_groupSIDs = 0;
 752         DOM_SID  *groupSIDs   = NULL;
 753         gid_t    *unix_groups = NULL;
 754         NT_USER_TOKEN *token;
 755         BOOL is_guest;
 756         uint32 rid;
 757
 758         if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info, sampass))) {
 759                 return nt_status;
 760         }
 761
 762         if (!NT_STATUS_IS_OK(nt_status
 763                              = get_user_groups_from_local_sam(sampass,
 764                 &n_groupSIDs, &groupSIDs, &unix_groups)))
 765         {
 766                 DEBUG(4,("get_user_groups_from_local_sam failed\n"));
 767                 free_server_info(server_info);
 768                 return nt_status;
 769         }
 770
 771         is_guest = (sid_peek_rid(user_sid, &rid) && rid == DOMAIN_USER_RID_GUEST);
 772
 773         if (!NT_STATUS_IS_OK(nt_status = create_nt_user_token(user_sid, group_sid,
 774                                                               n_groupSIDs, groupSIDs, is_guest,
 775                                                               &token)))
 776         {
 777                 DEBUG(4,("create_nt_user_token failed\n"));
 778                 SAFE_FREE(groupSIDs);
 779                 SAFE_FREE(unix_groups);
 780                 free_server_info(server_info);
 781                 return nt_status;
 782         }
 783
 784         SAFE_FREE(groupSIDs);
 785
 786         (*server_info)->n_groups = n_groupSIDs;
 787         (*server_info)->groups = unix_groups;
 788
 789         (*server_info)->ptok = token;
 790
 791         DEBUG(5,("make_server_info_sam: made server info for user %s\n",
 792                  pdb_get_username((*server_info)->sam_account)));
 793
 794         return nt_status;
 795 }
 796
 797 /***************************************************************************
 798  Make (and fill) a user_info struct from a 'struct passwd' by conversion
 799  to a SAM_ACCOUNT
 800 ***************************************************************************/
 801
 802 NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info, const struct passwd *pwd)
 803 {
 804         NTSTATUS nt_status;
 805         SAM_ACCOUNT *sampass = NULL;
 806         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(&sampass, pwd))) {
 807                 return nt_status;
 808         }
 809         return make_server_info_sam(server_info, sampass);
 810 }
 811
 812 /***************************************************************************
 813  Make (and fill) a user_info struct for a guest login.
 814 ***************************************************************************/
 815
 816 NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
 817 {
 818         NTSTATUS nt_status;
 819         SAM_ACCOUNT *sampass = NULL;
 820         DOM_SID guest_sid;
 821
 822         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(&sampass))) {
 823                 return nt_status;
 824         }
 825
 826         sid_copy(&guest_sid, get_global_sam_sid());
 827         sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
 828
 829         become_root();
 830         if (!pdb_getsampwsid(sampass, &guest_sid)) {
 831                 unbecome_root();
 832                 return NT_STATUS_NO_SUCH_USER;
 833         }
 834         unbecome_root();
 835
 836         nt_status = make_server_info_sam(server_info, sampass);
 837
 838         if (NT_STATUS_IS_OK(nt_status)) {
 839                 (*server_info)->guest = True;
 840         }
 841
 842         return nt_status;
 843 }
 844
 845 /***************************************************************************
 846  Make a server_info struct from the info3 returned by a domain logon
 847 ***************************************************************************/
 848
 849 NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
 850                                 const char *internal_username,
 851                                 const char *sent_nt_username,
 852                                 const char *domain,
 853                                 auth_serversupplied_info **server_info,
 854                                 NET_USER_INFO_3 *info3)
 855 {
 856         NTSTATUS nt_status = NT_STATUS_OK;
 857
 858         const char *nt_domain;
 859         const char *nt_username;
 860
 861         SAM_ACCOUNT *sam_account = NULL;
 862         DOM_SID user_sid;
 863         DOM_SID group_sid;
 864
 865         struct passwd *passwd;
 866
 867         unid_t u_id, g_id;
 868         int u_type, g_type;
 869
 870         int n_lgroupSIDs;
 871         DOM_SID *lgroupSIDs   = NULL;
 872
 873         gid_t *unix_groups = NULL;
 874         NT_USER_TOKEN *token;
 875
 876         DOM_SID *all_group_SIDs;
 877         size_t i;
 878
 879         /*
 880            Here is where we should check the list of
 881            trusted domains, and verify that the SID
 882            matches.
 883         */
 884
 885         sid_copy(&user_sid, &info3->dom_sid.sid);
 886         if (!sid_append_rid(&user_sid, info3->user_rid)) {
 887                 return NT_STATUS_INVALID_PARAMETER;
 888         }
 889
 890         sid_copy(&group_sid, &info3->dom_sid.sid);
 891         if (!sid_append_rid(&group_sid, info3->group_rid)) {
 892                 return NT_STATUS_INVALID_PARAMETER;
 893         }
 894
 895         if (!(nt_username = unistr2_tdup(mem_ctx, &(info3->uni_user_name)))) {
 896                 /* If the server didn't give us one, just use the one we sent them */
 897                 nt_username = sent_nt_username;
 898         }
 899
 900         if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3->uni_logon_dom)))) {
 901                 /* If the server didn't give us one, just use the one we sent them */
 902                 domain = domain;
 903         }
 904
 905         u_type = ID_USERID;
 906         g_type = ID_GROUPID;
 907         if (NT_STATUS_IS_OK(idmap_get_id_from_sid(&u_id, &u_type, &user_sid))
 908             && NT_STATUS_IS_OK(idmap_get_id_from_sid(&g_id, &g_type, &group_sid))
 909             && ((passwd = getpwuid_alloc(u_id.uid)))) {
 910                 nt_status = pdb_init_sam_pw(&sam_account, passwd);
 911                 passwd_free(&passwd);
 912         } else {
 913                 int try = 0;
 914                 while (try < 2) {
 915                         char *dom_user;
 916                         dom_user = talloc_asprintf(mem_ctx, "%s%s%s",
 917                                                    nt_domain,
 918                                                    lp_winbind_separator(),
 919                                                    internal_username);
 920
 921                         if (!dom_user) {
 922                                 DEBUG(0, ("talloc_asprintf failed!\n"));
 923                                 nt_status = NT_STATUS_NO_MEMORY;
 924                         } else {
 925
 926                                 if (!(passwd = Get_Pwnam(dom_user))
 927                                     /* Only lookup local for the local
 928                                        domain, we don't want this for
 929                                        trusted domains */
 930                                     && strequal(nt_domain, lp_workgroup())) {
 931                                         passwd = Get_Pwnam(internal_username);
 932                                 }
 933
 934                                 if (!passwd) {
 935                                         nt_status = NT_STATUS_NO_SUCH_USER;
 936                                 } else {
 937                                         nt_status = pdb_init_sam_pw(&sam_account, passwd);
 938                                         break;
 939                                 }
 940                         }
 941                         if (try == 0) {
 942                                 auth_add_user_script(nt_domain, internal_username);
 943                         }
 944                         try++;
 945                 }
 946         }
 947
 948         if (!NT_STATUS_IS_OK(nt_status)) {
 949                 DEBUG(0, ("make_server_info_info3: pdb_init_sam failed!\n"));
 950                 return nt_status;
 951         }
 952
 953         if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
 954                 pdb_free_sam(&sam_account);
 955                 return NT_STATUS_UNSUCCESSFUL;
 956         }
 957
 958         if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
 959                 pdb_free_sam(&sam_account);
 960                 return NT_STATUS_UNSUCCESSFUL;
 961         }
 962
 963         if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
 964                 pdb_free_sam(&sam_account);
 965                 return NT_STATUS_NO_MEMORY;
 966         }
 967
 968         if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
 969                 pdb_free_sam(&sam_account);
 970                 return NT_STATUS_NO_MEMORY;
 971         }
 972
 973         if (!pdb_set_fullname(sam_account, unistr2_static(&(info3->uni_full_name)), PDB_CHANGED)) {
 974                 pdb_free_sam(&sam_account);
 975                 return NT_STATUS_NO_MEMORY;
 976         }
 977
 978         if (!pdb_set_logon_script(sam_account, unistr2_static(&(info3->uni_logon_script)), PDB_CHANGED)) {
 979                 pdb_free_sam(&sam_account);
 980                 return NT_STATUS_NO_MEMORY;
 981         }
 982
 983         if (!pdb_set_profile_path(sam_account, unistr2_static(&(info3->uni_profile_path)), PDB_CHANGED)) {
 984                 pdb_free_sam(&sam_account);
 985                 return NT_STATUS_NO_MEMORY;
 986         }
 987
 988         if (!pdb_set_homedir(sam_account, unistr2_static(&(info3->uni_home_dir)), PDB_CHANGED)) {
 989                 pdb_free_sam(&sam_account);
 990                 return NT_STATUS_NO_MEMORY;
 991         }
 992
 993         if (!pdb_set_dir_drive(sam_account, unistr2_static(&(info3->uni_dir_drive)), PDB_CHANGED)) {
 994                 pdb_free_sam(&sam_account);
 995                 return NT_STATUS_NO_MEMORY;
 996         }
 997
 998         if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info, sam_account))) {
 999                 DEBUG(4, ("make_server_info failed!\n"));
1000                 pdb_free_sam(&sam_account);
1001                 return nt_status;
1002         }
1003
1004         /* Store the user group information in the server_info
1005            returned to the caller. */
1006
1007         if (!NT_STATUS_IS_OK(nt_status
1008                              = get_user_groups_from_local_sam(sam_account,
1009                                                               &n_lgroupSIDs,
1010                                                               &lgroupSIDs,
1011                                                               &unix_groups)))
1012         {
1013                 DEBUG(4,("get_user_groups_from_local_sam failed\n"));
1014                 return nt_status;
1015         }
1016
1017         (*server_info)->groups = unix_groups;
1018         (*server_info)->n_groups = n_lgroupSIDs;
1019
1020         /* Create a 'combined' list of all SIDs we might want in the SD */
1021         all_group_SIDs   = malloc(sizeof(DOM_SID) *
1022                                   (n_lgroupSIDs + info3->num_groups2 +
1023                                    info3->num_other_sids));
1024         if (!all_group_SIDs) {
1025                 DEBUG(0, ("create_nt_token_info3: malloc() failed for DOM_SID list!\n"));
1026                 SAFE_FREE(lgroupSIDs);
1027                 return NT_STATUS_NO_MEMORY;
1028         }
1029
1030         /* Copy the 'local' sids */
1031         memcpy(all_group_SIDs, lgroupSIDs, sizeof(DOM_SID) * n_lgroupSIDs);
1032         SAFE_FREE(lgroupSIDs);
1033
1034         /* and create (by appending rids) the 'domain' sids */
1035         for (i = 0; i < info3->num_groups2; i++) {
1036                 sid_copy(&all_group_SIDs[i+n_lgroupSIDs], &(info3->dom_sid.sid));
1037                 if (!sid_append_rid(&all_group_SIDs[i+n_lgroupSIDs], info3->gids[i].g_rid)) {
1038                         nt_status = NT_STATUS_INVALID_PARAMETER;
1039                         DEBUG(3,("create_nt_token_info3: could not append additional group rid 0x%x\n",
1040                                 info3->gids[i].g_rid));
1041                         SAFE_FREE(lgroupSIDs);
1042                         return nt_status;
1043                 }
1044         }
1045
1046         /* Copy 'other' sids.  We need to do sid filtering here to
1047            prevent possible elevation of privileges.  See:
1048
1049            http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
1050          */
1051
1052         for (i = 0; i < info3->num_other_sids; i++)
1053                 sid_copy(&all_group_SIDs[
1054                                  n_lgroupSIDs + info3->num_groups2 + i],
1055                          &info3->other_sids[i].sid);
1056
1057         /* Where are the 'global' sids... */
1058
1059         /* can the user be guest? if yes, where is it stored? */
1060         if (!NT_STATUS_IS_OK(
1061                     nt_status = create_nt_user_token(
1062                             &user_sid, &group_sid,
1063                             n_lgroupSIDs + info3->num_groups2 + info3->num_other_sids,
1064                             all_group_SIDs, False, &token))) {
1065                 DEBUG(4,("create_nt_user_token failed\n"));
1066                 SAFE_FREE(all_group_SIDs);
1067                 return nt_status;
1068         }
1069
1070         (*server_info)->ptok = token;
1071
1072         SAFE_FREE(all_group_SIDs);
1073
1074         memcpy((*server_info)->session_key, info3->user_sess_key, sizeof((*server_info)->session_key)/* 16 */);
1075         memcpy((*server_info)->first_8_lm_hash, info3->padding, 8);
1076
1077         return NT_STATUS_OK;
1078 }
1079
1080 /***************************************************************************
1081  Free a user_info struct
1082 ***************************************************************************/
1083
1084 void free_user_info(auth_usersupplied_info **user_info)
1085 {
1086         DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
1087         if (*user_info != NULL) {
1088                 if ((*user_info)->smb_name.str) {
1089                         DEBUG(10,("structure was created for %s\n", (*user_info)->smb_name.str));
1090                 }
1091                 SAFE_FREE((*user_info)->smb_name.str);
1092                 SAFE_FREE((*user_info)->internal_username.str);
1093                 SAFE_FREE((*user_info)->client_domain.str);
1094                 SAFE_FREE((*user_info)->domain.str);
1095                 SAFE_FREE((*user_info)->wksta_name.str);
1096                 data_blob_free(&(*user_info)->lm_resp);
1097                 data_blob_free(&(*user_info)->nt_resp);
1098                 SAFE_FREE((*user_info)->interactive_password);
1099                 data_blob_clear_free(&(*user_info)->plaintext_password);
1100                 ZERO_STRUCT(**user_info);
1101         }
1102         SAFE_FREE(*user_info);
1103 }
1104
1105 /***************************************************************************
1106  Clear out a server_info struct that has been allocated
1107 ***************************************************************************/
1108
1109 void free_server_info(auth_serversupplied_info **server_info)
1110 {
1111         DEBUG(5,("attempting to free (and zero) a server_info structure\n"));
1112         if (*server_info != NULL) {
1113                 pdb_free_sam(&(*server_info)->sam_account);
1114
1115                 /* call pam_end here, unless we know we are keeping it */
1116                 delete_nt_token( &(*server_info)->ptok );
1117                 SAFE_FREE((*server_info)->groups);
1118                 ZERO_STRUCT(**server_info);
1119         }
1120         SAFE_FREE(*server_info);
1121 }
1122
1123 /***************************************************************************
1124  Make an auth_methods struct
1125 ***************************************************************************/
1126
1127 BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
1128 {
1129         if (!auth_context) {
1130                 smb_panic("no auth_context supplied to make_auth_methods()!\n");
1131         }
1132
1133         if (!auth_method) {
1134                 smb_panic("make_auth_methods: pointer to auth_method pointer is NULL!\n");
1135         }
1136
1137         *auth_method = talloc(auth_context->mem_ctx, sizeof(**auth_method));
1138         if (!*auth_method) {
1139                 DEBUG(0,("make_auth_method: malloc failed!\n"));
1140                 return False;
1141         }
1142         ZERO_STRUCTP(*auth_method);
1143
1144         return True;
1145 }
1146
1147 /****************************************************************************
1148  Delete a SID token.
1149 ****************************************************************************/
1150
1151 void delete_nt_token(NT_USER_TOKEN **pptoken)
1152 {
1153     if (*pptoken) {
1154             NT_USER_TOKEN *ptoken = *pptoken;
1155             SAFE_FREE( ptoken->user_sids );
1156             ZERO_STRUCTP(ptoken);
1157     }
1158     SAFE_FREE(*pptoken);
1159 }
1160
1161 /****************************************************************************
1162  Duplicate a SID token.
1163 ****************************************************************************/
1164
1165 NT_USER_TOKEN *dup_nt_token(NT_USER_TOKEN *ptoken)
1166 {
1167         NT_USER_TOKEN *token;
1168
1169         if (!ptoken)
1170                 return NULL;
1171
1172     if ((token = (NT_USER_TOKEN *)malloc( sizeof(NT_USER_TOKEN) ) ) == NULL)
1173         return NULL;
1174
1175     ZERO_STRUCTP(token);
1176
1177     if ((token->user_sids = (DOM_SID *)memdup( ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids )) == NULL) {
1178         SAFE_FREE(token);
1179         return NULL;
1180     }
1181
1182     token->num_sids = ptoken->num_sids;
1183
1184         return token;
1185 }
1186
1187 /**
1188  * Squash an NT_STATUS in line with security requirements.
1189  * In an attempt to avoid giving the whole game away when users
1190  * are authenticating, NT replaces both NT_STATUS_NO_SUCH_USER and
1191  * NT_STATUS_WRONG_PASSWORD with NT_STATUS_LOGON_FAILURE in certain situations
1192  * (session setups in particular).
1193  *
1194  * @param nt_status NTSTATUS input for squashing.
1195  * @return the 'squashed' nt_status
1196  **/
1197
1198 NTSTATUS nt_status_squash(NTSTATUS nt_status)
1199 {
1200         if NT_STATUS_IS_OK(nt_status) {
1201                 return nt_status;
1202         } else if NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER) {
1203                 /* Match WinXP and don't give the game away */
1204                 return NT_STATUS_LOGON_FAILURE;
1205
1206         } else if NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD) {
1207                 /* Match WinXP and don't give the game away */
1208                 return NT_STATUS_LOGON_FAILURE;
1209         } else {
1210                 return nt_status;
1211         }
1212 }
1213
1214
1215