source3/passdb/passdb.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Jeremy Allison                 1996-2001
   5    Copyright (C) Luke Kenneth Casson Leighton   1996-1998
   6    Copyright (C) Gerald (Jerry) Carter          2000-2006
   7    Copyright (C) Andrew Bartlett                2001-2002
   8    Copyright (C) Simo Sorce                     2003
   9    Copyright (C) Volker Lendecke                2006
  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 #include "includes.h"
  26 #include "passdb.h"
  27 #include "system/passwd.h"
  28 #include "../libcli/auth/libcli_auth.h"
  29 #include "secrets.h"
  30 #include "../libcli/security/security.h"
  31 #include "../lib/util/util_pw.h"
  32 #include "util_tdb.h"
  33
  34 #undef DBGC_CLASS
  35 #define DBGC_CLASS DBGC_PASSDB
  36
  37 /******************************************************************
  38  Get the default domain/netbios name to be used when
  39  testing authentication.
  40
  41  LEGACY: this function provides the legacy domain mapping used with
  42          the lp_map_untrusted_to_domain() parameter
  43 ******************************************************************/
  44
  45 const char *my_sam_name(void)
  46 {
  47        /* Standalone servers can only use the local netbios name */
  48        if ( lp_server_role() == ROLE_STANDALONE )
  49                return lp_netbios_name();
  50
  51        /* Default to the DOMAIN name when not specified */
  52        return lp_workgroup();
  53 }
  54
  55 /**********************************************************************
  56 ***********************************************************************/
  57
  58 static int samu_destroy(struct samu *user)
  59 {
  60         data_blob_clear_free( &user->lm_pw );
  61         data_blob_clear_free( &user->nt_pw );
  62
  63         if ( user->plaintext_pw )
  64                 memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
  65
  66         return 0;
  67 }
  68
  69 /**********************************************************************
  70  generate a new struct samuser
  71 ***********************************************************************/
  72
  73 struct samu *samu_new( TALLOC_CTX *ctx )
  74 {
  75         struct samu *user;
  76
  77         if ( !(user = talloc_zero( ctx, struct samu )) ) {
  78                 DEBUG(0,("samuser_new: Talloc failed!\n"));
  79                 return NULL;
  80         }
  81
  82         talloc_set_destructor( user, samu_destroy );
  83
  84         /* no initial methods */
  85
  86         user->methods = NULL;
  87
  88         /* Don't change these timestamp settings without a good reason.
  89            They are important for NT member server compatibility. */
  90
  91         user->logon_time            = (time_t)0;
  92         user->pass_last_set_time    = (time_t)0;
  93         user->pass_can_change_time  = (time_t)0;
  94         user->logoff_time           = get_time_t_max();
  95         user->kickoff_time          = get_time_t_max();
  96         user->pass_must_change_time = get_time_t_max();
  97         user->fields_present        = 0x00ffffff;
  98         user->logon_divs = 168;         /* hours per week */
  99         user->hours_len = 21;           /* 21 times 8 bits = 168 */
 100         memset(user->hours, 0xff, user->hours_len); /* available at all hours */
 101         user->bad_password_count = 0;
 102         user->logon_count = 0;
 103         user->unknown_6 = 0x000004ec; /* don't know */
 104
 105         /* Some parts of samba strlen their pdb_get...() returns,
 106            so this keeps the interface unchanged for now. */
 107
 108         user->username = "";
 109         user->domain = "";
 110         user->nt_username = "";
 111         user->full_name = "";
 112         user->home_dir = "";
 113         user->logon_script = "";
 114         user->profile_path = "";
 115         user->acct_desc = "";
 116         user->workstations = "";
 117         user->comment = "";
 118         user->munged_dial = "";
 119
 120         user->plaintext_pw = NULL;
 121
 122         /* Unless we know otherwise have a Account Control Bit
 123            value of 'normal user'.  This helps User Manager, which
 124            asks for a filtered list of users. */
 125
 126         user->acct_ctrl = ACB_NORMAL;
 127
 128         return user;
 129 }
 130
 131 static int count_commas(const char *str)
 132 {
 133         int num_commas = 0;
 134         const char *comma = str;
 135
 136         while ((comma = strchr(comma, ',')) != NULL) {
 137                 comma += 1;
 138                 num_commas += 1;
 139         }
 140         return num_commas;
 141 }
 142
 143 /*********************************************************************
 144  Initialize a struct samu from a struct passwd including the user
 145  and group SIDs.  The *user structure is filled out with the Unix
 146  attributes and a user SID.
 147 *********************************************************************/
 148
 149 static NTSTATUS samu_set_unix_internal(struct pdb_methods *methods,
 150                                        struct samu *user, const struct passwd *pwd, bool create)
 151 {
 152         const char *guest_account = lp_guestaccount();
 153         const char *domain = lp_netbios_name();
 154         char *fullname;
 155         uint32_t urid;
 156
 157         if ( !pwd ) {
 158                 return NT_STATUS_NO_SUCH_USER;
 159         }
 160
 161         /* Basic properties based upon the Unix account information */
 162
 163         pdb_set_username(user, pwd->pw_name, PDB_SET);
 164
 165         fullname = NULL;
 166
 167         if (count_commas(pwd->pw_gecos) == 3) {
 168                 /*
 169                  * Heuristic: This seems to be a gecos field that has been
 170                  * edited by chfn(1). Only use the part before the first
 171                  * comma. Fixes bug 5198.
 172                  */
 173                 fullname = talloc_strndup(
 174                         talloc_tos(), pwd->pw_gecos,
 175                         strchr(pwd->pw_gecos, ',') - pwd->pw_gecos);
 176         }
 177
 178         if (fullname != NULL) {
 179                 pdb_set_fullname(user, fullname, PDB_SET);
 180         } else {
 181                 pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
 182         }
 183         TALLOC_FREE(fullname);
 184
 185         pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
 186 #if 0
 187         /* This can lead to a primary group of S-1-22-2-XX which
 188            will be rejected by other parts of the Samba code.
 189            Rely on pdb_get_group_sid() to "Do The Right Thing" (TM)
 190            --jerry */
 191
 192         gid_to_sid(&group_sid, pwd->pw_gid);
 193         pdb_set_group_sid(user, &group_sid, PDB_SET);
 194 #endif
 195
 196         /* save the password structure for later use */
 197
 198         user->unix_pw = tcopy_passwd( user, pwd );
 199
 200         /* Special case for the guest account which must have a RID of 501 */
 201
 202         if ( strequal( pwd->pw_name, guest_account ) ) {
 203                 if ( !pdb_set_user_sid_from_rid(user, DOMAIN_RID_GUEST, PDB_DEFAULT)) {
 204                         return NT_STATUS_NO_SUCH_USER;
 205                 }
 206                 return NT_STATUS_OK;
 207         }
 208
 209         /* Non-guest accounts...Check for a workstation or user account */
 210
 211         if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
 212                 /* workstation */
 213
 214                 if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
 215                         DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n",
 216                                 pwd->pw_name));
 217                         return NT_STATUS_INVALID_COMPUTER_NAME;
 218                 }
 219         }
 220         else {
 221                 /* user */
 222
 223                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
 224                         DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n",
 225                                 pwd->pw_name));
 226                         return NT_STATUS_INVALID_ACCOUNT_NAME;
 227                 }
 228
 229                 /* set some basic attributes */
 230
 231                 pdb_set_profile_path(user, talloc_sub_specified(user,
 232                         lp_logon_path(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 233                         PDB_DEFAULT);
 234                 pdb_set_homedir(user, talloc_sub_specified(user,
 235                         lp_logon_home(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 236                         PDB_DEFAULT);
 237                 pdb_set_dir_drive(user, talloc_sub_specified(user,
 238                         lp_logon_drive(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 239                         PDB_DEFAULT);
 240                 pdb_set_logon_script(user, talloc_sub_specified(user,
 241                         lp_logon_script(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 242                         PDB_DEFAULT);
 243         }
 244
 245         /* Now deal with the user SID.  If we have a backend that can generate
 246            RIDs, then do so.  But sometimes the caller just wanted a structure
 247            initialized and will fill in these fields later (such as from a
 248            netr_SamInfo3 structure) */
 249
 250         if ( create && (methods->capabilities(methods) & PDB_CAP_STORE_RIDS)) {
 251                 uint32_t user_rid;
 252                 struct dom_sid user_sid;
 253
 254                 if ( !methods->new_rid(methods, &user_rid) ) {
 255                         DEBUG(3, ("Could not allocate a new RID\n"));
 256                         return NT_STATUS_ACCESS_DENIED;
 257                 }
 258
 259                 sid_compose(&user_sid, get_global_sam_sid(), user_rid);
 260
 261                 if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
 262                         DEBUG(3, ("pdb_set_user_sid failed\n"));
 263                         return NT_STATUS_INTERNAL_ERROR;
 264                 }
 265
 266                 return NT_STATUS_OK;
 267         }
 268
 269         /* generate a SID for the user with the RID algorithm */
 270
 271         urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
 272
 273         if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
 274                 return NT_STATUS_INTERNAL_ERROR;
 275         }
 276
 277         return NT_STATUS_OK;
 278 }
 279
 280 /********************************************************************
 281  Set the Unix user attributes
 282 ********************************************************************/
 283
 284 NTSTATUS samu_set_unix(struct samu *user, const struct passwd *pwd)
 285 {
 286         return samu_set_unix_internal( NULL, user, pwd, False );
 287 }
 288
 289 NTSTATUS samu_alloc_rid_unix(struct pdb_methods *methods,
 290                              struct samu *user, const struct passwd *pwd)
 291 {
 292         return samu_set_unix_internal( methods, user, pwd, True );
 293 }
 294
 295 /**********************************************************
 296  Encode the account control bits into a string.
 297  length = length of string to encode into (including terminating
 298  null). length *MUST BE MORE THAN 2* !
 299  **********************************************************/
 300
 301 char *pdb_encode_acct_ctrl(uint32_t acct_ctrl, size_t length)
 302 {
 303         fstring acct_str;
 304         char *result;
 305
 306         size_t i = 0;
 307
 308         SMB_ASSERT(length <= sizeof(acct_str));
 309
 310         acct_str[i++] = '[';
 311
 312         if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
 313         if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
 314         if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
 315         if (acct_ctrl & ACB_TEMPDUP  ) acct_str[i++] = 'T';
 316         if (acct_ctrl & ACB_NORMAL   ) acct_str[i++] = 'U';
 317         if (acct_ctrl & ACB_MNS      ) acct_str[i++] = 'M';
 318         if (acct_ctrl & ACB_WSTRUST  ) acct_str[i++] = 'W';
 319         if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
 320         if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
 321         if (acct_ctrl & ACB_PWNOEXP  ) acct_str[i++] = 'X';
 322         if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
 323
 324         for ( ; i < length - 2 ; i++ )
 325                 acct_str[i] = ' ';
 326
 327         i = length - 2;
 328         acct_str[i++] = ']';
 329         acct_str[i++] = '\0';
 330
 331         result = talloc_strdup(talloc_tos(), acct_str);
 332         SMB_ASSERT(result != NULL);
 333         return result;
 334 }
 335
 336 /**********************************************************
 337  Decode the account control bits from a string.
 338  **********************************************************/
 339
 340 uint32_t pdb_decode_acct_ctrl(const char *p)
 341 {
 342         uint32_t acct_ctrl = 0;
 343         bool finished = false;
 344
 345         /*
 346          * Check if the account type bits have been encoded after the
 347          * NT password (in the form [NDHTUWSLXI]).
 348          */
 349
 350         if (*p != '[')
 351                 return 0;
 352
 353         for (p++; *p && !finished; p++) {
 354                 switch (*p) {
 355                         case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
 356                         case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
 357                         case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
 358                         case 'T': { acct_ctrl |= ACB_TEMPDUP  ; break; /* 'T'emp account. */ }
 359                         case 'U': { acct_ctrl |= ACB_NORMAL   ; break; /* 'U'ser account (normal). */ }
 360                         case 'M': { acct_ctrl |= ACB_MNS      ; break; /* 'M'NS logon user account. What is this ? */ }
 361                         case 'W': { acct_ctrl |= ACB_WSTRUST  ; break; /* 'W'orkstation account. */ }
 362                         case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
 363                         case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
 364                         case 'X': { acct_ctrl |= ACB_PWNOEXP  ; break; /* No 'X'piry on password */ }
 365                         case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
 366             case ' ': { break; }
 367                         case ':':
 368                         case '\n':
 369                         case '\0':
 370                         case ']':
 371                         default:  { finished = true; }
 372                 }
 373         }
 374
 375         return acct_ctrl;
 376 }
 377
 378 /*************************************************************
 379  Routine to set 32 hex password characters from a 16 byte array.
 380 **************************************************************/
 381
 382 void pdb_sethexpwd(char p[33], const unsigned char *pwd, uint32_t acct_ctrl)
 383 {
 384         if (pwd != NULL) {
 385                 int i;
 386                 for (i = 0; i < 16; i++)
 387                         slprintf(&p[i*2], 3, "%02X", pwd[i]);
 388         } else {
 389                 if (acct_ctrl & ACB_PWNOTREQ)
 390                         strlcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
 391                 else
 392                         strlcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
 393         }
 394 }
 395
 396 /*************************************************************
 397  Routine to get the 32 hex characters and turn them
 398  into a 16 byte array.
 399 **************************************************************/
 400
 401 bool pdb_gethexpwd(const char *p, unsigned char *pwd)
 402 {
 403         int i;
 404         unsigned char   lonybble, hinybble;
 405         const char      *hexchars = "0123456789ABCDEF";
 406         char           *p1, *p2;
 407
 408         if (!p)
 409                 return false;
 410
 411         for (i = 0; i < 32; i += 2) {
 412                 hinybble = toupper_m(p[i]);
 413                 lonybble = toupper_m(p[i + 1]);
 414
 415                 p1 = strchr(hexchars, hinybble);
 416                 p2 = strchr(hexchars, lonybble);
 417
 418                 if (!p1 || !p2)
 419                         return false;
 420
 421                 hinybble = PTR_DIFF(p1, hexchars);
 422                 lonybble = PTR_DIFF(p2, hexchars);
 423
 424                 pwd[i / 2] = (hinybble << 4) | lonybble;
 425         }
 426         return true;
 427 }
 428
 429 /*************************************************************
 430  Routine to set 42 hex hours characters from a 21 byte array.
 431 **************************************************************/
 432
 433 void pdb_sethexhours(char *p, const unsigned char *hours)
 434 {
 435         if (hours != NULL) {
 436                 int i;
 437                 for (i = 0; i < 21; i++) {
 438                         slprintf(&p[i*2], 3, "%02X", hours[i]);
 439                 }
 440         } else {
 441                 strlcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 44);
 442         }
 443 }
 444
 445 /*************************************************************
 446  Routine to get the 42 hex characters and turn them
 447  into a 21 byte array.
 448 **************************************************************/
 449
 450 bool pdb_gethexhours(const char *p, unsigned char *hours)
 451 {
 452         int i;
 453         unsigned char   lonybble, hinybble;
 454         const char      *hexchars = "0123456789ABCDEF";
 455         char           *p1, *p2;
 456
 457         if (!p) {
 458                 return (False);
 459         }
 460
 461         for (i = 0; i < 42; i += 2) {
 462                 hinybble = toupper_m(p[i]);
 463                 lonybble = toupper_m(p[i + 1]);
 464
 465                 p1 = strchr(hexchars, hinybble);
 466                 p2 = strchr(hexchars, lonybble);
 467
 468                 if (!p1 || !p2) {
 469                         return (False);
 470                 }
 471
 472                 hinybble = PTR_DIFF(p1, hexchars);
 473                 lonybble = PTR_DIFF(p2, hexchars);
 474
 475                 hours[i / 2] = (hinybble << 4) | lonybble;
 476         }
 477         return (True);
 478 }
 479
 480 /********************************************************************
 481 ********************************************************************/
 482
 483 int algorithmic_rid_base(void)
 484 {
 485         int rid_offset;
 486
 487         rid_offset = lp_algorithmic_rid_base();
 488
 489         if (rid_offset < BASE_RID) {
 490                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 491                    rids below 1000, that's the 'well known RIDs' on NT */
 492                 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
 493                 rid_offset = BASE_RID;
 494         }
 495         if (rid_offset & 1) {
 496                 DEBUG(0, ("algorithmic rid base must be even\n"));
 497                 rid_offset += 1;
 498         }
 499         return rid_offset;
 500 }
 501
 502 /*******************************************************************
 503  Converts NT user RID to a UNIX uid.
 504  ********************************************************************/
 505
 506 uid_t algorithmic_pdb_user_rid_to_uid(uint32_t user_rid)
 507 {
 508         int rid_offset = algorithmic_rid_base();
 509         return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
 510 }
 511
 512 uid_t max_algorithmic_uid(void)
 513 {
 514         return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
 515 }
 516
 517 /*******************************************************************
 518  converts UNIX uid to an NT User RID.
 519  ********************************************************************/
 520
 521 uint32_t algorithmic_pdb_uid_to_user_rid(uid_t uid)
 522 {
 523         int rid_offset = algorithmic_rid_base();
 524         return (((((uint32_t)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
 525 }
 526
 527 /*******************************************************************
 528  Converts NT group RID to a UNIX gid.
 529  ********************************************************************/
 530
 531 gid_t pdb_group_rid_to_gid(uint32_t group_rid)
 532 {
 533         int rid_offset = algorithmic_rid_base();
 534         return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
 535 }
 536
 537 gid_t max_algorithmic_gid(void)
 538 {
 539         return pdb_group_rid_to_gid(0xffffffff);
 540 }
 541
 542 /*******************************************************************
 543  converts NT Group RID to a UNIX uid.
 544
 545  warning: you must not call that function only
 546  you must do a call to the group mapping first.
 547  there is not anymore a direct link between the gid and the rid.
 548  ********************************************************************/
 549
 550 uint32_t algorithmic_pdb_gid_to_group_rid(gid_t gid)
 551 {
 552         int rid_offset = algorithmic_rid_base();
 553         return (((((uint32_t)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
 554 }
 555
 556 /*******************************************************************
 557  Decides if a RID is a well known RID.
 558  ********************************************************************/
 559
 560 static bool rid_is_well_known(uint32_t rid)
 561 {
 562         /* Not using rid_offset here, because this is the actual
 563            NT fixed value (1000) */
 564
 565         return (rid < BASE_RID);
 566 }
 567
 568 /*******************************************************************
 569  Decides if a RID is a user or group RID.
 570  ********************************************************************/
 571
 572 bool algorithmic_pdb_rid_is_user(uint32_t rid)
 573 {
 574         if ( rid_is_well_known(rid) ) {
 575                 /*
 576                  * The only well known user RIDs are DOMAIN_RID_ADMINISTRATOR
 577                  * and DOMAIN_RID_GUEST.
 578                  */
 579                 if(rid == DOMAIN_RID_ADMINISTRATOR || rid == DOMAIN_RID_GUEST)
 580                         return True;
 581         } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
 582                 return True;
 583         }
 584         return False;
 585 }
 586
 587 /*******************************************************************
 588  Convert a name into a SID. Used in the lookup name rpc.
 589  ********************************************************************/
 590
 591 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
 592                             enum lsa_SidType *type)
 593 {
 594         GROUP_MAP *map;
 595         bool ret;
 596
 597         /* Windows treats "MACHINE\None" as a special name for
 598            rid 513 on non-DCs.  You cannot create a user or group
 599            name "None" on Windows.  You will get an error that
 600            the group already exists. */
 601
 602         if ( strequal( name, "None" ) ) {
 603                 *rid = DOMAIN_RID_USERS;
 604                 *type = SID_NAME_DOM_GRP;
 605
 606                 return True;
 607         }
 608
 609         /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
 610          * correctly in the case where foo also exists as a user. If the flag
 611          * is set, don't look for users at all. */
 612
 613         if ((flags & LOOKUP_NAME_GROUP) == 0) {
 614                 struct samu *sam_account = NULL;
 615                 struct dom_sid user_sid;
 616
 617                 if ( !(sam_account = samu_new( NULL )) ) {
 618                         return False;
 619                 }
 620
 621                 become_root();
 622                 ret =  pdb_getsampwnam(sam_account, name);
 623                 unbecome_root();
 624
 625                 if (ret) {
 626                         sid_copy(&user_sid, pdb_get_user_sid(sam_account));
 627                 }
 628
 629                 TALLOC_FREE(sam_account);
 630
 631                 if (ret) {
 632                         if (!sid_check_is_in_our_domain(&user_sid)) {
 633                                 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
 634                                           name, sid_string_dbg(&user_sid)));
 635                                 return False;
 636                         }
 637
 638                         sid_peek_rid(&user_sid, rid);
 639                         *type = SID_NAME_USER;
 640                         return True;
 641                 }
 642         }
 643
 644         /*
 645          * Maybe it is a group ?
 646          */
 647
 648         map = talloc_zero(NULL, GROUP_MAP);
 649         if (!map) {
 650                 return false;
 651         }
 652
 653         become_root();
 654         ret = pdb_getgrnam(map, name);
 655         unbecome_root();
 656
 657         if (!ret) {
 658                 TALLOC_FREE(map);
 659                 return False;
 660         }
 661
 662         /* BUILTIN groups are looked up elsewhere */
 663         if (!sid_check_is_in_our_domain(&map->sid)) {
 664                 DEBUG(10, ("Found group %s (%s) not in our domain -- "
 665                            "ignoring.", name, sid_string_dbg(&map->sid)));
 666                 TALLOC_FREE(map);
 667                 return False;
 668         }
 669
 670         /* yes it's a mapped group */
 671         sid_peek_rid(&map->sid, rid);
 672         *type = map->sid_name_use;
 673         TALLOC_FREE(map);
 674         return True;
 675 }
 676
 677 /*************************************************************
 678  Change a password entry in the local passdb backend.
 679
 680  Assumptions:
 681   - always called as root
 682   - ignores the account type except when adding a new account
 683   - will create/delete the unix account if the relative
 684     add/delete user script is configured
 685
 686  *************************************************************/
 687
 688 NTSTATUS local_password_change(const char *user_name,
 689                                 int local_flags,
 690                                 const char *new_passwd,
 691                                 char **pp_err_str,
 692                                 char **pp_msg_str)
 693 {
 694         TALLOC_CTX *tosctx;
 695         struct samu *sam_pass;
 696         uint32_t acb;
 697         uint32_t rid;
 698         NTSTATUS result;
 699         bool user_exists;
 700         int ret = -1;
 701
 702         *pp_err_str = NULL;
 703         *pp_msg_str = NULL;
 704
 705         tosctx = talloc_tos();
 706
 707         sam_pass = samu_new(tosctx);
 708         if (!sam_pass) {
 709                 result = NT_STATUS_NO_MEMORY;
 710                 goto done;
 711         }
 712
 713         /* Get the smb passwd entry for this user */
 714         user_exists = pdb_getsampwnam(sam_pass, user_name);
 715
 716         /* Check delete first, we don't need to do anything else if we
 717          * are going to delete the acocunt */
 718         if (user_exists && (local_flags & LOCAL_DELETE_USER)) {
 719
 720                 result = pdb_delete_user(tosctx, sam_pass);
 721                 if (!NT_STATUS_IS_OK(result)) {
 722                         ret = asprintf(pp_err_str,
 723                                         "Failed to delete entry for user %s.\n",
 724                                         user_name);
 725                         if (ret < 0) {
 726                                 *pp_err_str = NULL;
 727                         }
 728                         result = NT_STATUS_UNSUCCESSFUL;
 729                 } else {
 730                         ret = asprintf(pp_msg_str,
 731                                         "Deleted user %s.\n",
 732                                         user_name);
 733                         if (ret < 0) {
 734                                 *pp_msg_str = NULL;
 735                         }
 736                 }
 737                 goto done;
 738         }
 739
 740         if (user_exists && (local_flags & LOCAL_ADD_USER)) {
 741                 /* the entry already existed */
 742                 local_flags &= ~LOCAL_ADD_USER;
 743         }
 744
 745         if (!user_exists && !(local_flags & LOCAL_ADD_USER)) {
 746                 ret = asprintf(pp_err_str,
 747                                 "Failed to find entry for user %s.\n",
 748                                 user_name);
 749                 if (ret < 0) {
 750                         *pp_err_str = NULL;
 751                 }
 752                 result = NT_STATUS_NO_SUCH_USER;
 753                 goto done;
 754         }
 755
 756         /* First thing add the new user if we are required to do so */
 757         if (local_flags & LOCAL_ADD_USER) {
 758
 759                 if (local_flags & LOCAL_TRUST_ACCOUNT) {
 760                         acb = ACB_WSTRUST;
 761                 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
 762                         acb = ACB_DOMTRUST;
 763                 } else {
 764                         acb = ACB_NORMAL;
 765                 }
 766
 767                 result = pdb_create_user(tosctx, user_name, acb, &rid);
 768                 if (!NT_STATUS_IS_OK(result)) {
 769                         ret = asprintf(pp_err_str,
 770                                         "Failed to add entry for user %s.\n",
 771                                         user_name);
 772                         if (ret < 0) {
 773                                 *pp_err_str = NULL;
 774                         }
 775                         result = NT_STATUS_UNSUCCESSFUL;
 776                         goto done;
 777                 }
 778
 779                 sam_pass = samu_new(tosctx);
 780                 if (!sam_pass) {
 781                         result = NT_STATUS_NO_MEMORY;
 782                         goto done;
 783                 }
 784
 785                 /* Now get back the smb passwd entry for this new user */
 786                 user_exists = pdb_getsampwnam(sam_pass, user_name);
 787                 if (!user_exists) {
 788                         ret = asprintf(pp_err_str,
 789                                         "Failed to add entry for user %s.\n",
 790                                         user_name);
 791                         if (ret < 0) {
 792                                 *pp_err_str = NULL;
 793                         }
 794                         result = NT_STATUS_UNSUCCESSFUL;
 795                         goto done;
 796                 }
 797         }
 798
 799         acb = pdb_get_acct_ctrl(sam_pass);
 800
 801         /*
 802          * We are root - just write the new password
 803          * and the valid last change time.
 804          */
 805         if ((local_flags & LOCAL_SET_NO_PASSWORD) && !(acb & ACB_PWNOTREQ)) {
 806                 acb |= ACB_PWNOTREQ;
 807                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 808                         ret = asprintf(pp_err_str,
 809                                         "Failed to set 'no password required' "
 810                                         "flag for user %s.\n", user_name);
 811                         if (ret < 0) {
 812                                 *pp_err_str = NULL;
 813                         }
 814                         result = NT_STATUS_UNSUCCESSFUL;
 815                         goto done;
 816                 }
 817         }
 818
 819         if (local_flags & LOCAL_SET_PASSWORD) {
 820                 /*
 821                  * If we're dealing with setting a completely empty user account
 822                  * ie. One with a password of 'XXXX', but not set disabled (like
 823                  * an account created from scratch) then if the old password was
 824                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
 825                  * We remove that as we're giving this user their first password
 826                  * and the decision hasn't really been made to disable them (ie.
 827                  * don't create them disabled). JRA.
 828                  */
 829                 if ((pdb_get_lanman_passwd(sam_pass) == NULL) &&
 830                     (acb & ACB_DISABLED)) {
 831                         acb &= (~ACB_DISABLED);
 832                         if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 833                                 ret = asprintf(pp_err_str,
 834                                                 "Failed to unset 'disabled' "
 835                                                 "flag for user %s.\n",
 836                                                 user_name);
 837                                 if (ret < 0) {
 838                                         *pp_err_str = NULL;
 839                                 }
 840                                 result = NT_STATUS_UNSUCCESSFUL;
 841                                 goto done;
 842                         }
 843                 }
 844
 845                 acb &= (~ACB_PWNOTREQ);
 846                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 847                         ret = asprintf(pp_err_str,
 848                                         "Failed to unset 'no password required'"
 849                                         " flag for user %s.\n", user_name);
 850                         if (ret < 0) {
 851                                 *pp_err_str = NULL;
 852                         }
 853                         result = NT_STATUS_UNSUCCESSFUL;
 854                         goto done;
 855                 }
 856
 857                 if (!pdb_set_plaintext_passwd(sam_pass, new_passwd)) {
 858                         ret = asprintf(pp_err_str,
 859                                         "Failed to set password for "
 860                                         "user %s.\n", user_name);
 861                                 if (ret < 0) {
 862                                 *pp_err_str = NULL;
 863                         }
 864                         result = NT_STATUS_UNSUCCESSFUL;
 865                         goto done;
 866                 }
 867         }
 868
 869         if ((local_flags & LOCAL_DISABLE_USER) && !(acb & ACB_DISABLED)) {
 870                 acb |= ACB_DISABLED;
 871                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 872                         ret = asprintf(pp_err_str,
 873                                         "Failed to set 'disabled' flag for "
 874                                         "user %s.\n", user_name);
 875                         if (ret < 0) {
 876                                 *pp_err_str = NULL;
 877                         }
 878                         result = NT_STATUS_UNSUCCESSFUL;
 879                         goto done;
 880                 }
 881         }
 882
 883         if ((local_flags & LOCAL_ENABLE_USER) && (acb & ACB_DISABLED)) {
 884                 acb &= (~ACB_DISABLED);
 885                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 886                         ret = asprintf(pp_err_str,
 887                                         "Failed to unset 'disabled' flag for "
 888                                         "user %s.\n", user_name);
 889                         if (ret < 0) {
 890                                 *pp_err_str = NULL;
 891                         }
 892                         result = NT_STATUS_UNSUCCESSFUL;
 893                         goto done;
 894                 }
 895         }
 896
 897         /* now commit changes if any */
 898         result = pdb_update_sam_account(sam_pass);
 899         if (!NT_STATUS_IS_OK(result)) {
 900                 ret = asprintf(pp_err_str,
 901                                 "Failed to modify entry for user %s.\n",
 902                                 user_name);
 903                 if (ret < 0) {
 904                         *pp_err_str = NULL;
 905                 }
 906                 goto done;
 907         }
 908
 909         if (local_flags & LOCAL_ADD_USER) {
 910                 ret = asprintf(pp_msg_str, "Added user %s.\n", user_name);
 911         } else if (local_flags & LOCAL_DISABLE_USER) {
 912                 ret = asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
 913         } else if (local_flags & LOCAL_ENABLE_USER) {
 914                 ret = asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
 915         } else if (local_flags & LOCAL_SET_NO_PASSWORD) {
 916                 ret = asprintf(pp_msg_str,
 917                                 "User %s password set to none.\n", user_name);
 918         }
 919
 920         if (ret < 0) {
 921                 *pp_msg_str = NULL;
 922         }
 923
 924         result = NT_STATUS_OK;
 925
 926 done:
 927         TALLOC_FREE(sam_pass);
 928         return result;
 929 }
 930
 931 /**********************************************************************
 932  Marshall/unmarshall struct samu structs.
 933  *********************************************************************/
 934
 935 #define SAMU_BUFFER_FORMAT_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
 936 #define SAMU_BUFFER_FORMAT_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
 937 #define SAMU_BUFFER_FORMAT_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
 938 #define SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
 939 /* nothing changed between V3 and V4 */
 940
 941 /*********************************************************************
 942 *********************************************************************/
 943
 944 static bool init_samu_from_buffer_v0(struct samu *sampass, uint8_t *buf, uint32_t buflen)
 945 {
 946
 947         /* times are stored as 32bit integer
 948            take care on system with 64bit wide time_t
 949            --SSS */
 950         uint32_t        logon_time,
 951                 logoff_time,
 952                 kickoff_time,
 953                 pass_last_set_time,
 954                 pass_can_change_time,
 955                 pass_must_change_time;
 956         char *username = NULL;
 957         char *domain = NULL;
 958         char *nt_username = NULL;
 959         char *dir_drive = NULL;
 960         char *unknown_str = NULL;
 961         char *munged_dial = NULL;
 962         char *fullname = NULL;
 963         char *homedir = NULL;
 964         char *logon_script = NULL;
 965         char *profile_path = NULL;
 966         char *acct_desc = NULL;
 967         char *workstations = NULL;
 968         uint32_t        username_len, domain_len, nt_username_len,
 969                 dir_drive_len, unknown_str_len, munged_dial_len,
 970                 fullname_len, homedir_len, logon_script_len,
 971                 profile_path_len, acct_desc_len, workstations_len;
 972
 973         uint32_t        user_rid, group_rid, remove_me, hours_len, unknown_6;
 974         uint16_t        acct_ctrl, logon_divs;
 975         uint16_t        bad_password_count, logon_count;
 976         uint8_t *hours = NULL;
 977         uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
 978         uint32_t                len = 0;
 979         uint32_t                lm_pw_len, nt_pw_len, hourslen;
 980         bool ret = True;
 981
 982         if(sampass == NULL || buf == NULL) {
 983                 DEBUG(0, ("init_samu_from_buffer_v0: NULL parameters found!\n"));
 984                 return False;
 985         }
 986
 987 /* SAMU_BUFFER_FORMAT_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
 988
 989         /* unpack the buffer into variables */
 990         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V0,
 991                 &logon_time,                                            /* d */
 992                 &logoff_time,                                           /* d */
 993                 &kickoff_time,                                          /* d */
 994                 &pass_last_set_time,                                    /* d */
 995                 &pass_can_change_time,                                  /* d */
 996                 &pass_must_change_time,                                 /* d */
 997                 &username_len, &username,                               /* B */
 998                 &domain_len, &domain,                                   /* B */
 999                 &nt_username_len, &nt_username,                         /* B */
1000                 &fullname_len, &fullname,                               /* B */
1001                 &homedir_len, &homedir,                                 /* B */
1002                 &dir_drive_len, &dir_drive,                             /* B */
1003                 &logon_script_len, &logon_script,                       /* B */
1004                 &profile_path_len, &profile_path,                       /* B */
1005                 &acct_desc_len, &acct_desc,                             /* B */
1006                 &workstations_len, &workstations,                       /* B */
1007                 &unknown_str_len, &unknown_str,                         /* B */
1008                 &munged_dial_len, &munged_dial,                         /* B */
1009                 &user_rid,                                              /* d */
1010                 &group_rid,                                             /* d */
1011                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1012                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1013                 &acct_ctrl,                                             /* w */
1014                 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1015                 &logon_divs,                                            /* w */
1016                 &hours_len,                                             /* d */
1017                 &hourslen, &hours,                                      /* B */
1018                 &bad_password_count,                                    /* w */
1019                 &logon_count,                                           /* w */
1020                 &unknown_6);                                            /* d */
1021
1022         if (len == (uint32_t) -1)  {
1023                 ret = False;
1024                 goto done;
1025         }
1026
1027         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1028         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1029         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1030         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1031         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1032         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1033
1034         pdb_set_username(sampass, username, PDB_SET);
1035         pdb_set_domain(sampass, domain, PDB_SET);
1036         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1037         pdb_set_fullname(sampass, fullname, PDB_SET);
1038
1039         if (homedir) {
1040                 pdb_set_homedir(sampass, homedir, PDB_SET);
1041         }
1042         else {
1043                 pdb_set_homedir(sampass,
1044                         talloc_sub_basic(sampass, username, domain,
1045                                          lp_logon_home()),
1046                         PDB_DEFAULT);
1047         }
1048
1049         if (dir_drive)
1050                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1051         else {
1052                 pdb_set_dir_drive(sampass,
1053                         talloc_sub_basic(sampass, username, domain,
1054                                          lp_logon_drive()),
1055                         PDB_DEFAULT);
1056         }
1057
1058         if (logon_script)
1059                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1060         else {
1061                 pdb_set_logon_script(sampass,
1062                         talloc_sub_basic(sampass, username, domain,
1063                                          lp_logon_script()),
1064                         PDB_DEFAULT);
1065         }
1066
1067         if (profile_path) {
1068                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1069         } else {
1070                 pdb_set_profile_path(sampass,
1071                         talloc_sub_basic(sampass, username, domain,
1072                                          lp_logon_path()),
1073                         PDB_DEFAULT);
1074         }
1075
1076         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1077         pdb_set_workstations(sampass, workstations, PDB_SET);
1078         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1079
1080         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1081                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1082                         ret = False;
1083                         goto done;
1084                 }
1085         }
1086
1087         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1088                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1089                         ret = False;
1090                         goto done;
1091                 }
1092         }
1093
1094         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1095         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1096         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1097         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1098         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1099         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1100         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1101         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1102         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1103         pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1104
1105 done:
1106
1107         SAFE_FREE(username);
1108         SAFE_FREE(domain);
1109         SAFE_FREE(nt_username);
1110         SAFE_FREE(fullname);
1111         SAFE_FREE(homedir);
1112         SAFE_FREE(dir_drive);
1113         SAFE_FREE(logon_script);
1114         SAFE_FREE(profile_path);
1115         SAFE_FREE(acct_desc);
1116         SAFE_FREE(workstations);
1117         SAFE_FREE(munged_dial);
1118         SAFE_FREE(unknown_str);
1119         SAFE_FREE(lm_pw_ptr);
1120         SAFE_FREE(nt_pw_ptr);
1121         SAFE_FREE(hours);
1122
1123         return ret;
1124 }
1125
1126 /*********************************************************************
1127 *********************************************************************/
1128
1129 static bool init_samu_from_buffer_v1(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1130 {
1131
1132         /* times are stored as 32bit integer
1133            take care on system with 64bit wide time_t
1134            --SSS */
1135         uint32_t        logon_time,
1136                 logoff_time,
1137                 kickoff_time,
1138                 bad_password_time,
1139                 pass_last_set_time,
1140                 pass_can_change_time,
1141                 pass_must_change_time;
1142         char *username = NULL;
1143         char *domain = NULL;
1144         char *nt_username = NULL;
1145         char *dir_drive = NULL;
1146         char *unknown_str = NULL;
1147         char *munged_dial = NULL;
1148         char *fullname = NULL;
1149         char *homedir = NULL;
1150         char *logon_script = NULL;
1151         char *profile_path = NULL;
1152         char *acct_desc = NULL;
1153         char *workstations = NULL;
1154         uint32_t        username_len, domain_len, nt_username_len,
1155                 dir_drive_len, unknown_str_len, munged_dial_len,
1156                 fullname_len, homedir_len, logon_script_len,
1157                 profile_path_len, acct_desc_len, workstations_len;
1158
1159         uint32_t        user_rid, group_rid, remove_me, hours_len, unknown_6;
1160         uint16_t        acct_ctrl, logon_divs;
1161         uint16_t        bad_password_count, logon_count;
1162         uint8_t *hours = NULL;
1163         uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1164         uint32_t                len = 0;
1165         uint32_t                lm_pw_len, nt_pw_len, hourslen;
1166         bool ret = True;
1167
1168         if(sampass == NULL || buf == NULL) {
1169                 DEBUG(0, ("init_samu_from_buffer_v1: NULL parameters found!\n"));
1170                 return False;
1171         }
1172
1173 /* SAMU_BUFFER_FORMAT_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1174
1175         /* unpack the buffer into variables */
1176         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V1,
1177                 &logon_time,                                            /* d */
1178                 &logoff_time,                                           /* d */
1179                 &kickoff_time,                                          /* d */
1180                 /* Change from V0 is addition of bad_password_time field. */
1181                 &bad_password_time,                                     /* d */
1182                 &pass_last_set_time,                                    /* d */
1183                 &pass_can_change_time,                                  /* d */
1184                 &pass_must_change_time,                                 /* d */
1185                 &username_len, &username,                               /* B */
1186                 &domain_len, &domain,                                   /* B */
1187                 &nt_username_len, &nt_username,                         /* B */
1188                 &fullname_len, &fullname,                               /* B */
1189                 &homedir_len, &homedir,                                 /* B */
1190                 &dir_drive_len, &dir_drive,                             /* B */
1191                 &logon_script_len, &logon_script,                       /* B */
1192                 &profile_path_len, &profile_path,                       /* B */
1193                 &acct_desc_len, &acct_desc,                             /* B */
1194                 &workstations_len, &workstations,                       /* B */
1195                 &unknown_str_len, &unknown_str,                         /* B */
1196                 &munged_dial_len, &munged_dial,                         /* B */
1197                 &user_rid,                                              /* d */
1198                 &group_rid,                                             /* d */
1199                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1200                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1201                 &acct_ctrl,                                             /* w */
1202                 &remove_me,                                             /* d */
1203                 &logon_divs,                                            /* w */
1204                 &hours_len,                                             /* d */
1205                 &hourslen, &hours,                                      /* B */
1206                 &bad_password_count,                                    /* w */
1207                 &logon_count,                                           /* w */
1208                 &unknown_6);                                            /* d */
1209
1210         if (len == (uint32_t) -1)  {
1211                 ret = False;
1212                 goto done;
1213         }
1214
1215         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1216         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1217         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1218
1219         /* Change from V0 is addition of bad_password_time field. */
1220         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1221         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1222         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1223         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1224
1225         pdb_set_username(sampass, username, PDB_SET);
1226         pdb_set_domain(sampass, domain, PDB_SET);
1227         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1228         pdb_set_fullname(sampass, fullname, PDB_SET);
1229
1230         if (homedir) {
1231                 pdb_set_homedir(sampass, homedir, PDB_SET);
1232         }
1233         else {
1234                 pdb_set_homedir(sampass,
1235                         talloc_sub_basic(sampass, username, domain,
1236                                          lp_logon_home()),
1237                         PDB_DEFAULT);
1238         }
1239
1240         if (dir_drive)
1241                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1242         else {
1243                 pdb_set_dir_drive(sampass,
1244                         talloc_sub_basic(sampass, username, domain,
1245                                          lp_logon_drive()),
1246                         PDB_DEFAULT);
1247         }
1248
1249         if (logon_script)
1250                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1251         else {
1252                 pdb_set_logon_script(sampass,
1253                         talloc_sub_basic(sampass, username, domain,
1254                                          lp_logon_script()),
1255                         PDB_DEFAULT);
1256         }
1257
1258         if (profile_path) {
1259                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1260         } else {
1261                 pdb_set_profile_path(sampass,
1262                         talloc_sub_basic(sampass, username, domain,
1263                                          lp_logon_path()),
1264                         PDB_DEFAULT);
1265         }
1266
1267         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1268         pdb_set_workstations(sampass, workstations, PDB_SET);
1269         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1270
1271         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1272                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1273                         ret = False;
1274                         goto done;
1275                 }
1276         }
1277
1278         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1279                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1280                         ret = False;
1281                         goto done;
1282                 }
1283         }
1284
1285         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1286
1287         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1288         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1289         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1290         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1291         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1292         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1293         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1294         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1295         pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1296
1297 done:
1298
1299         SAFE_FREE(username);
1300         SAFE_FREE(domain);
1301         SAFE_FREE(nt_username);
1302         SAFE_FREE(fullname);
1303         SAFE_FREE(homedir);
1304         SAFE_FREE(dir_drive);
1305         SAFE_FREE(logon_script);
1306         SAFE_FREE(profile_path);
1307         SAFE_FREE(acct_desc);
1308         SAFE_FREE(workstations);
1309         SAFE_FREE(munged_dial);
1310         SAFE_FREE(unknown_str);
1311         SAFE_FREE(lm_pw_ptr);
1312         SAFE_FREE(nt_pw_ptr);
1313         SAFE_FREE(hours);
1314
1315         return ret;
1316 }
1317
1318 static bool init_samu_from_buffer_v2(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1319 {
1320
1321         /* times are stored as 32bit integer
1322            take care on system with 64bit wide time_t
1323            --SSS */
1324         uint32_t        logon_time,
1325                 logoff_time,
1326                 kickoff_time,
1327                 bad_password_time,
1328                 pass_last_set_time,
1329                 pass_can_change_time,
1330                 pass_must_change_time;
1331         char *username = NULL;
1332         char *domain = NULL;
1333         char *nt_username = NULL;
1334         char *dir_drive = NULL;
1335         char *unknown_str = NULL;
1336         char *munged_dial = NULL;
1337         char *fullname = NULL;
1338         char *homedir = NULL;
1339         char *logon_script = NULL;
1340         char *profile_path = NULL;
1341         char *acct_desc = NULL;
1342         char *workstations = NULL;
1343         uint32_t        username_len, domain_len, nt_username_len,
1344                 dir_drive_len, unknown_str_len, munged_dial_len,
1345                 fullname_len, homedir_len, logon_script_len,
1346                 profile_path_len, acct_desc_len, workstations_len;
1347
1348         uint32_t        user_rid, group_rid, hours_len, unknown_6;
1349         uint16_t        acct_ctrl, logon_divs;
1350         uint16_t        bad_password_count, logon_count;
1351         uint8_t *hours = NULL;
1352         uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1353         uint32_t                len = 0;
1354         uint32_t                lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1355         uint32_t pwHistLen = 0;
1356         bool ret = True;
1357         fstring tmp_string;
1358         bool expand_explicit = lp_passdb_expand_explicit();
1359
1360         if(sampass == NULL || buf == NULL) {
1361                 DEBUG(0, ("init_samu_from_buffer_v2: NULL parameters found!\n"));
1362                 return False;
1363         }
1364
1365 /* SAMU_BUFFER_FORMAT_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1366
1367         /* unpack the buffer into variables */
1368         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V2,
1369                 &logon_time,                                            /* d */
1370                 &logoff_time,                                           /* d */
1371                 &kickoff_time,                                          /* d */
1372                 &bad_password_time,                                     /* d */
1373                 &pass_last_set_time,                                    /* d */
1374                 &pass_can_change_time,                                  /* d */
1375                 &pass_must_change_time,                                 /* d */
1376                 &username_len, &username,                               /* B */
1377                 &domain_len, &domain,                                   /* B */
1378                 &nt_username_len, &nt_username,                         /* B */
1379                 &fullname_len, &fullname,                               /* B */
1380                 &homedir_len, &homedir,                                 /* B */
1381                 &dir_drive_len, &dir_drive,                             /* B */
1382                 &logon_script_len, &logon_script,                       /* B */
1383                 &profile_path_len, &profile_path,                       /* B */
1384                 &acct_desc_len, &acct_desc,                             /* B */
1385                 &workstations_len, &workstations,                       /* B */
1386                 &unknown_str_len, &unknown_str,                         /* B */
1387                 &munged_dial_len, &munged_dial,                         /* B */
1388                 &user_rid,                                              /* d */
1389                 &group_rid,                                             /* d */
1390                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1391                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1392                 /* Change from V1 is addition of password history field. */
1393                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1394                 &acct_ctrl,                                             /* w */
1395                 /* Also "remove_me" field was removed. */
1396                 &logon_divs,                                            /* w */
1397                 &hours_len,                                             /* d */
1398                 &hourslen, &hours,                                      /* B */
1399                 &bad_password_count,                                    /* w */
1400                 &logon_count,                                           /* w */
1401                 &unknown_6);                                            /* d */
1402
1403         if (len == (uint32_t) -1)  {
1404                 ret = False;
1405                 goto done;
1406         }
1407
1408         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1409         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1410         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1411         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1412         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1413         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1414         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1415
1416         pdb_set_username(sampass, username, PDB_SET);
1417         pdb_set_domain(sampass, domain, PDB_SET);
1418         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1419         pdb_set_fullname(sampass, fullname, PDB_SET);
1420
1421         if (homedir) {
1422                 fstrcpy( tmp_string, homedir );
1423                 if (expand_explicit) {
1424                         standard_sub_basic( username, domain, tmp_string,
1425                                             sizeof(tmp_string) );
1426                 }
1427                 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1428         }
1429         else {
1430                 pdb_set_homedir(sampass,
1431                         talloc_sub_basic(sampass, username, domain,
1432                                          lp_logon_home()),
1433                         PDB_DEFAULT);
1434         }
1435
1436         if (dir_drive)
1437                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1438         else
1439                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1440
1441         if (logon_script) {
1442                 fstrcpy( tmp_string, logon_script );
1443                 if (expand_explicit) {
1444                         standard_sub_basic( username, domain, tmp_string,
1445                                             sizeof(tmp_string) );
1446                 }
1447                 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1448         }
1449         else {
1450                 pdb_set_logon_script(sampass,
1451                         talloc_sub_basic(sampass, username, domain,
1452                                          lp_logon_script()),
1453                         PDB_DEFAULT);
1454         }
1455
1456         if (profile_path) {
1457                 fstrcpy( tmp_string, profile_path );
1458                 if (expand_explicit) {
1459                         standard_sub_basic( username, domain, tmp_string,
1460                                             sizeof(tmp_string) );
1461                 }
1462                 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1463         }
1464         else {
1465                 pdb_set_profile_path(sampass,
1466                         talloc_sub_basic(sampass, username, domain,
1467                                          lp_logon_path()),
1468                         PDB_DEFAULT);
1469         }
1470
1471         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1472         pdb_set_workstations(sampass, workstations, PDB_SET);
1473         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1474
1475         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1476                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1477                         ret = False;
1478                         goto done;
1479                 }
1480         }
1481
1482         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1483                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1484                         ret = False;
1485                         goto done;
1486                 }
1487         }
1488
1489         /* Change from V1 is addition of password history field. */
1490         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1491         if (pwHistLen) {
1492                 uint8_t *pw_hist = SMB_MALLOC_ARRAY(uint8_t, pwHistLen * PW_HISTORY_ENTRY_LEN);
1493                 if (!pw_hist) {
1494                         ret = False;
1495                         goto done;
1496                 }
1497                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1498                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1499                         int i;
1500                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1501                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1502                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1503                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1504                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1505                                         PW_HISTORY_ENTRY_LEN);
1506                         }
1507                 }
1508                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1509                         SAFE_FREE(pw_hist);
1510                         ret = False;
1511                         goto done;
1512                 }
1513                 SAFE_FREE(pw_hist);
1514         } else {
1515                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1516         }
1517
1518         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1519         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1520         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1521         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1522         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1523         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1524         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1525         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1526         pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1527
1528 done:
1529
1530         SAFE_FREE(username);
1531         SAFE_FREE(domain);
1532         SAFE_FREE(nt_username);
1533         SAFE_FREE(fullname);
1534         SAFE_FREE(homedir);
1535         SAFE_FREE(dir_drive);
1536         SAFE_FREE(logon_script);
1537         SAFE_FREE(profile_path);
1538         SAFE_FREE(acct_desc);
1539         SAFE_FREE(workstations);
1540         SAFE_FREE(munged_dial);
1541         SAFE_FREE(unknown_str);
1542         SAFE_FREE(lm_pw_ptr);
1543         SAFE_FREE(nt_pw_ptr);
1544         SAFE_FREE(nt_pw_hist_ptr);
1545         SAFE_FREE(hours);
1546
1547         return ret;
1548 }
1549
1550 /*********************************************************************
1551 *********************************************************************/
1552
1553 static bool init_samu_from_buffer_v3(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1554 {
1555
1556         /* times are stored as 32bit integer
1557            take care on system with 64bit wide time_t
1558            --SSS */
1559         uint32_t        logon_time,
1560                 logoff_time,
1561                 kickoff_time,
1562                 bad_password_time,
1563                 pass_last_set_time,
1564                 pass_can_change_time,
1565                 pass_must_change_time;
1566         char *username = NULL;
1567         char *domain = NULL;
1568         char *nt_username = NULL;
1569         char *dir_drive = NULL;
1570         char *comment = NULL;
1571         char *munged_dial = NULL;
1572         char *fullname = NULL;
1573         char *homedir = NULL;
1574         char *logon_script = NULL;
1575         char *profile_path = NULL;
1576         char *acct_desc = NULL;
1577         char *workstations = NULL;
1578         uint32_t        username_len, domain_len, nt_username_len,
1579                 dir_drive_len, comment_len, munged_dial_len,
1580                 fullname_len, homedir_len, logon_script_len,
1581                 profile_path_len, acct_desc_len, workstations_len;
1582
1583         uint32_t        user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
1584         uint16_t  logon_divs;
1585         uint16_t        bad_password_count, logon_count;
1586         uint8_t *hours = NULL;
1587         uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1588         uint32_t                len = 0;
1589         uint32_t                lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1590         uint32_t pwHistLen = 0;
1591         bool ret = True;
1592         fstring tmp_string;
1593         bool expand_explicit = lp_passdb_expand_explicit();
1594
1595         if(sampass == NULL || buf == NULL) {
1596                 DEBUG(0, ("init_samu_from_buffer_v3: NULL parameters found!\n"));
1597                 return False;
1598         }
1599
1600 /* SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1601
1602         /* unpack the buffer into variables */
1603         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V3,
1604                 &logon_time,                                            /* d */
1605                 &logoff_time,                                           /* d */
1606                 &kickoff_time,                                          /* d */
1607                 &bad_password_time,                                     /* d */
1608                 &pass_last_set_time,                                    /* d */
1609                 &pass_can_change_time,                                  /* d */
1610                 &pass_must_change_time,                                 /* d */
1611                 &username_len, &username,                               /* B */
1612                 &domain_len, &domain,                                   /* B */
1613                 &nt_username_len, &nt_username,                         /* B */
1614                 &fullname_len, &fullname,                               /* B */
1615                 &homedir_len, &homedir,                                 /* B */
1616                 &dir_drive_len, &dir_drive,                             /* B */
1617                 &logon_script_len, &logon_script,                       /* B */
1618                 &profile_path_len, &profile_path,                       /* B */
1619                 &acct_desc_len, &acct_desc,                             /* B */
1620                 &workstations_len, &workstations,                       /* B */
1621                 &comment_len, &comment,                                 /* B */
1622                 &munged_dial_len, &munged_dial,                         /* B */
1623                 &user_rid,                                              /* d */
1624                 &group_rid,                                             /* d */
1625                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1626                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1627                 /* Change from V1 is addition of password history field. */
1628                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1629                 /* Change from V2 is the uint32_t acb_mask */
1630                 &acct_ctrl,                                             /* d */
1631                 /* Also "remove_me" field was removed. */
1632                 &logon_divs,                                            /* w */
1633                 &hours_len,                                             /* d */
1634                 &hourslen, &hours,                                      /* B */
1635                 &bad_password_count,                                    /* w */
1636                 &logon_count,                                           /* w */
1637                 &unknown_6);                                            /* d */
1638
1639         if (len == (uint32_t) -1)  {
1640                 ret = False;
1641                 goto done;
1642         }
1643
1644         pdb_set_logon_time(sampass, convert_uint32_t_to_time_t(logon_time), PDB_SET);
1645         pdb_set_logoff_time(sampass, convert_uint32_t_to_time_t(logoff_time), PDB_SET);
1646         pdb_set_kickoff_time(sampass, convert_uint32_t_to_time_t(kickoff_time), PDB_SET);
1647         pdb_set_bad_password_time(sampass, convert_uint32_t_to_time_t(bad_password_time), PDB_SET);
1648         pdb_set_pass_can_change_time(sampass, convert_uint32_t_to_time_t(pass_can_change_time), PDB_SET);
1649         pdb_set_pass_must_change_time(sampass, convert_uint32_t_to_time_t(pass_must_change_time), PDB_SET);
1650         pdb_set_pass_last_set_time(sampass, convert_uint32_t_to_time_t(pass_last_set_time), PDB_SET);
1651
1652         pdb_set_username(sampass, username, PDB_SET);
1653         pdb_set_domain(sampass, domain, PDB_SET);
1654         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1655         pdb_set_fullname(sampass, fullname, PDB_SET);
1656
1657         if (homedir) {
1658                 fstrcpy( tmp_string, homedir );
1659                 if (expand_explicit) {
1660                         standard_sub_basic( username, domain, tmp_string,
1661                                             sizeof(tmp_string) );
1662                 }
1663                 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1664         }
1665         else {
1666                 pdb_set_homedir(sampass,
1667                         talloc_sub_basic(sampass, username, domain,
1668                                          lp_logon_home()),
1669                         PDB_DEFAULT);
1670         }
1671
1672         if (dir_drive)
1673                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1674         else
1675                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1676
1677         if (logon_script) {
1678                 fstrcpy( tmp_string, logon_script );
1679                 if (expand_explicit) {
1680                         standard_sub_basic( username, domain, tmp_string,
1681                                             sizeof(tmp_string) );
1682                 }
1683                 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1684         }
1685         else {
1686                 pdb_set_logon_script(sampass,
1687                         talloc_sub_basic(sampass, username, domain,
1688                                          lp_logon_script()),
1689                         PDB_DEFAULT);
1690         }
1691
1692         if (profile_path) {
1693                 fstrcpy( tmp_string, profile_path );
1694                 if (expand_explicit) {
1695                         standard_sub_basic( username, domain, tmp_string,
1696                                             sizeof(tmp_string) );
1697                 }
1698                 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1699         }
1700         else {
1701                 pdb_set_profile_path(sampass,
1702                         talloc_sub_basic(sampass, username, domain, lp_logon_path()),
1703                         PDB_DEFAULT);
1704         }
1705
1706         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1707         pdb_set_comment(sampass, comment, PDB_SET);
1708         pdb_set_workstations(sampass, workstations, PDB_SET);
1709         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1710
1711         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1712                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1713                         ret = False;
1714                         goto done;
1715                 }
1716         }
1717
1718         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1719                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1720                         ret = False;
1721                         goto done;
1722                 }
1723         }
1724
1725         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1726         if (pwHistLen) {
1727                 uint8_t *pw_hist = (uint8_t *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1728                 if (!pw_hist) {
1729                         ret = False;
1730                         goto done;
1731                 }
1732                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1733                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1734                         int i;
1735                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1736                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1737                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1738                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1739                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1740                                         PW_HISTORY_ENTRY_LEN);
1741                         }
1742                 }
1743                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1744                         SAFE_FREE(pw_hist);
1745                         ret = False;
1746                         goto done;
1747                 }
1748                 SAFE_FREE(pw_hist);
1749         } else {
1750                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1751         }
1752
1753         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1754         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1755         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1756         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1757         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1758         /* Change from V2 is the uint32_t acct_ctrl */
1759         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1760         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1761         pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1762
1763 done:
1764
1765         SAFE_FREE(username);
1766         SAFE_FREE(domain);
1767         SAFE_FREE(nt_username);
1768         SAFE_FREE(fullname);
1769         SAFE_FREE(homedir);
1770         SAFE_FREE(dir_drive);
1771         SAFE_FREE(logon_script);
1772         SAFE_FREE(profile_path);
1773         SAFE_FREE(acct_desc);
1774         SAFE_FREE(workstations);
1775         SAFE_FREE(munged_dial);
1776         SAFE_FREE(comment);
1777         SAFE_FREE(lm_pw_ptr);
1778         SAFE_FREE(nt_pw_ptr);
1779         SAFE_FREE(nt_pw_hist_ptr);
1780         SAFE_FREE(hours);
1781
1782         return ret;
1783 }
1784
1785 /*********************************************************************
1786 *********************************************************************/
1787
1788 static uint32_t init_buffer_from_samu_v3 (uint8_t **buf, struct samu *sampass, bool size_only)
1789 {
1790         size_t len, buflen;
1791
1792         /* times are stored as 32bit integer
1793            take care on system with 64bit wide time_t
1794            --SSS */
1795         uint32_t        logon_time,
1796                 logoff_time,
1797                 kickoff_time,
1798                 bad_password_time,
1799                 pass_last_set_time,
1800                 pass_can_change_time,
1801                 pass_must_change_time;
1802
1803         uint32_t  user_rid, group_rid;
1804
1805         const char *username;
1806         const char *domain;
1807         const char *nt_username;
1808         const char *dir_drive;
1809         const char *comment;
1810         const char *munged_dial;
1811         const char *fullname;
1812         const char *homedir;
1813         const char *logon_script;
1814         const char *profile_path;
1815         const char *acct_desc;
1816         const char *workstations;
1817         uint32_t        username_len, domain_len, nt_username_len,
1818                 dir_drive_len, comment_len, munged_dial_len,
1819                 fullname_len, homedir_len, logon_script_len,
1820                 profile_path_len, acct_desc_len, workstations_len;
1821
1822         const uint8_t *lm_pw;
1823         const uint8_t *nt_pw;
1824         const uint8_t *nt_pw_hist;
1825         uint32_t        lm_pw_len = 16;
1826         uint32_t        nt_pw_len = 16;
1827         uint32_t  nt_pw_hist_len;
1828         uint32_t pwHistLen = 0;
1829
1830         *buf = NULL;
1831         buflen = 0;
1832
1833         logon_time = convert_time_t_to_uint32_t(pdb_get_logon_time(sampass));
1834         logoff_time = convert_time_t_to_uint32_t(pdb_get_logoff_time(sampass));
1835         kickoff_time = convert_time_t_to_uint32_t(pdb_get_kickoff_time(sampass));
1836         bad_password_time = convert_time_t_to_uint32_t(pdb_get_bad_password_time(sampass));
1837         pass_can_change_time = convert_time_t_to_uint32_t(pdb_get_pass_can_change_time_noncalc(sampass));
1838         pass_must_change_time = convert_time_t_to_uint32_t(pdb_get_pass_must_change_time(sampass));
1839         pass_last_set_time = convert_time_t_to_uint32_t(pdb_get_pass_last_set_time(sampass));
1840
1841         user_rid = pdb_get_user_rid(sampass);
1842         group_rid = pdb_get_group_rid(sampass);
1843
1844         username = pdb_get_username(sampass);
1845         if (username) {
1846                 username_len = strlen(username) +1;
1847         } else {
1848                 username_len = 0;
1849         }
1850
1851         domain = pdb_get_domain(sampass);
1852         if (domain) {
1853                 domain_len = strlen(domain) +1;
1854         } else {
1855                 domain_len = 0;
1856         }
1857
1858         nt_username = pdb_get_nt_username(sampass);
1859         if (nt_username) {
1860                 nt_username_len = strlen(nt_username) +1;
1861         } else {
1862                 nt_username_len = 0;
1863         }
1864
1865         fullname = pdb_get_fullname(sampass);
1866         if (fullname) {
1867                 fullname_len = strlen(fullname) +1;
1868         } else {
1869                 fullname_len = 0;
1870         }
1871
1872         /*
1873          * Only updates fields which have been set (not defaults from smb.conf)
1874          */
1875
1876         if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1877                 dir_drive = pdb_get_dir_drive(sampass);
1878         } else {
1879                 dir_drive = NULL;
1880         }
1881         if (dir_drive) {
1882                 dir_drive_len = strlen(dir_drive) +1;
1883         } else {
1884                 dir_drive_len = 0;
1885         }
1886
1887         if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1888                 homedir = pdb_get_homedir(sampass);
1889         } else {
1890                 homedir = NULL;
1891         }
1892         if (homedir) {
1893                 homedir_len = strlen(homedir) +1;
1894         } else {
1895                 homedir_len = 0;
1896         }
1897
1898         if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1899                 logon_script = pdb_get_logon_script(sampass);
1900         } else {
1901                 logon_script = NULL;
1902         }
1903         if (logon_script) {
1904                 logon_script_len = strlen(logon_script) +1;
1905         } else {
1906                 logon_script_len = 0;
1907         }
1908
1909         if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1910                 profile_path = pdb_get_profile_path(sampass);
1911         } else {
1912                 profile_path = NULL;
1913         }
1914         if (profile_path) {
1915                 profile_path_len = strlen(profile_path) +1;
1916         } else {
1917                 profile_path_len = 0;
1918         }
1919
1920         lm_pw = pdb_get_lanman_passwd(sampass);
1921         if (!lm_pw) {
1922                 lm_pw_len = 0;
1923         }
1924
1925         nt_pw = pdb_get_nt_passwd(sampass);
1926         if (!nt_pw) {
1927                 nt_pw_len = 0;
1928         }
1929
1930         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1931         nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
1932         if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1933                 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1934         } else {
1935                 nt_pw_hist_len = 0;
1936         }
1937
1938         acct_desc = pdb_get_acct_desc(sampass);
1939         if (acct_desc) {
1940                 acct_desc_len = strlen(acct_desc) +1;
1941         } else {
1942                 acct_desc_len = 0;
1943         }
1944
1945         workstations = pdb_get_workstations(sampass);
1946         if (workstations) {
1947                 workstations_len = strlen(workstations) +1;
1948         } else {
1949                 workstations_len = 0;
1950         }
1951
1952         comment = pdb_get_comment(sampass);
1953         if (comment) {
1954                 comment_len = strlen(comment) +1;
1955         } else {
1956                 comment_len = 0;
1957         }
1958
1959         munged_dial = pdb_get_munged_dial(sampass);
1960         if (munged_dial) {
1961                 munged_dial_len = strlen(munged_dial) +1;
1962         } else {
1963                 munged_dial_len = 0;
1964         }
1965
1966 /* SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1967
1968         /* one time to get the size needed */
1969         len = tdb_pack(NULL, 0,  SAMU_BUFFER_FORMAT_V3,
1970                 logon_time,                             /* d */
1971                 logoff_time,                            /* d */
1972                 kickoff_time,                           /* d */
1973                 bad_password_time,                      /* d */
1974                 pass_last_set_time,                     /* d */
1975                 pass_can_change_time,                   /* d */
1976                 pass_must_change_time,                  /* d */
1977                 username_len, username,                 /* B */
1978                 domain_len, domain,                     /* B */
1979                 nt_username_len, nt_username,           /* B */
1980                 fullname_len, fullname,                 /* B */
1981                 homedir_len, homedir,                   /* B */
1982                 dir_drive_len, dir_drive,               /* B */
1983                 logon_script_len, logon_script,         /* B */
1984                 profile_path_len, profile_path,         /* B */
1985                 acct_desc_len, acct_desc,               /* B */
1986                 workstations_len, workstations,         /* B */
1987                 comment_len, comment,                   /* B */
1988                 munged_dial_len, munged_dial,           /* B */
1989                 user_rid,                               /* d */
1990                 group_rid,                              /* d */
1991                 lm_pw_len, lm_pw,                       /* B */
1992                 nt_pw_len, nt_pw,                       /* B */
1993                 nt_pw_hist_len, nt_pw_hist,             /* B */
1994                 pdb_get_acct_ctrl(sampass),             /* d */
1995                 pdb_get_logon_divs(sampass),            /* w */
1996                 pdb_get_hours_len(sampass),             /* d */
1997                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1998                 pdb_get_bad_password_count(sampass),    /* w */
1999                 pdb_get_logon_count(sampass),           /* w */
2000                 pdb_get_unknown_6(sampass));            /* d */
2001
2002         if (size_only) {
2003                 return buflen;
2004         }
2005
2006         /* malloc the space needed */
2007         if ( (*buf=(uint8_t*)SMB_MALLOC(len)) == NULL) {
2008                 DEBUG(0,("init_buffer_from_samu_v3: Unable to malloc() memory for buffer!\n"));
2009                 return (-1);
2010         }
2011
2012         /* now for the real call to tdb_pack() */
2013         buflen = tdb_pack(*buf, len,  SAMU_BUFFER_FORMAT_V3,
2014                 logon_time,                             /* d */
2015                 logoff_time,                            /* d */
2016                 kickoff_time,                           /* d */
2017                 bad_password_time,                      /* d */
2018                 pass_last_set_time,                     /* d */
2019                 pass_can_change_time,                   /* d */
2020                 pass_must_change_time,                  /* d */
2021                 username_len, username,                 /* B */
2022                 domain_len, domain,                     /* B */
2023                 nt_username_len, nt_username,           /* B */
2024                 fullname_len, fullname,                 /* B */
2025                 homedir_len, homedir,                   /* B */
2026                 dir_drive_len, dir_drive,               /* B */
2027                 logon_script_len, logon_script,         /* B */
2028                 profile_path_len, profile_path,         /* B */
2029                 acct_desc_len, acct_desc,               /* B */
2030                 workstations_len, workstations,         /* B */
2031                 comment_len, comment,                   /* B */
2032                 munged_dial_len, munged_dial,           /* B */
2033                 user_rid,                               /* d */
2034                 group_rid,                              /* d */
2035                 lm_pw_len, lm_pw,                       /* B */
2036                 nt_pw_len, nt_pw,                       /* B */
2037                 nt_pw_hist_len, nt_pw_hist,             /* B */
2038                 pdb_get_acct_ctrl(sampass),             /* d */
2039                 pdb_get_logon_divs(sampass),            /* w */
2040                 pdb_get_hours_len(sampass),             /* d */
2041                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
2042                 pdb_get_bad_password_count(sampass),    /* w */
2043                 pdb_get_logon_count(sampass),           /* w */
2044                 pdb_get_unknown_6(sampass));            /* d */
2045
2046         /* check to make sure we got it correct */
2047         if (buflen != len) {
2048                 DEBUG(0, ("init_buffer_from_samu_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2049                           (unsigned long)buflen, (unsigned long)len));
2050                 /* error */
2051                 SAFE_FREE (*buf);
2052                 return (-1);
2053         }
2054
2055         return (buflen);
2056 }
2057
2058 static bool init_samu_from_buffer_v4(struct samu *sampass, uint8_t *buf, uint32_t buflen)
2059 {
2060         /* nothing changed between V3 and V4 */
2061         return init_samu_from_buffer_v3(sampass, buf, buflen);
2062 }
2063
2064 static uint32_t init_buffer_from_samu_v4(uint8_t **buf, struct samu *sampass, bool size_only)
2065 {
2066         /* nothing changed between V3 and V4 */
2067         return init_buffer_from_samu_v3(buf, sampass, size_only);
2068 }
2069
2070 /**********************************************************************
2071  Intialize a struct samu struct from a BYTE buffer of size len
2072  *********************************************************************/
2073
2074 bool init_samu_from_buffer(struct samu *sampass, uint32_t level,
2075                            uint8_t *buf, uint32_t buflen)
2076 {
2077         switch (level) {
2078         case SAMU_BUFFER_V0:
2079                 return init_samu_from_buffer_v0(sampass, buf, buflen);
2080         case SAMU_BUFFER_V1:
2081                 return init_samu_from_buffer_v1(sampass, buf, buflen);
2082         case SAMU_BUFFER_V2:
2083                 return init_samu_from_buffer_v2(sampass, buf, buflen);
2084         case SAMU_BUFFER_V3:
2085                 return init_samu_from_buffer_v3(sampass, buf, buflen);
2086         case SAMU_BUFFER_V4:
2087                 return init_samu_from_buffer_v4(sampass, buf, buflen);
2088         }
2089
2090         return false;
2091 }
2092
2093 /**********************************************************************
2094  Intialize a BYTE buffer from a struct samu struct
2095  *********************************************************************/
2096
2097 uint32_t init_buffer_from_samu (uint8_t **buf, struct samu *sampass, bool size_only)
2098 {
2099         return init_buffer_from_samu_v4(buf, sampass, size_only);
2100 }
2101
2102 /*********************************************************************
2103 *********************************************************************/
2104
2105 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
2106 {
2107         uint8_t *buf = NULL;
2108         int len;
2109
2110         len = init_buffer_from_samu(&buf, src, False);
2111         if (len == -1 || !buf) {
2112                 SAFE_FREE(buf);
2113                 return False;
2114         }
2115
2116         if (!init_samu_from_buffer( dst, SAMU_BUFFER_LATEST, buf, len )) {
2117                 free(buf);
2118                 return False;
2119         }
2120
2121         dst->methods = src->methods;
2122
2123         if ( src->unix_pw ) {
2124                 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
2125                 if (!dst->unix_pw) {
2126                         free(buf);
2127                         return False;
2128                 }
2129         }
2130
2131         if (src->group_sid) {
2132                 pdb_set_group_sid(dst, src->group_sid, PDB_SET);
2133         }
2134
2135         free(buf);
2136         return True;
2137 }
2138
2139 /*********************************************************************
2140  Update the bad password count checking the PDB_POLICY_RESET_COUNT_TIME
2141 *********************************************************************/
2142
2143 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
2144 {
2145         time_t LastBadPassword;
2146         uint16_t BadPasswordCount;
2147         uint32_t resettime;
2148         bool res;
2149
2150         BadPasswordCount = pdb_get_bad_password_count(sampass);
2151         if (!BadPasswordCount) {
2152                 DEBUG(9, ("No bad password attempts.\n"));
2153                 return True;
2154         }
2155
2156         become_root();
2157         res = pdb_get_account_policy(PDB_POLICY_RESET_COUNT_TIME, &resettime);
2158         unbecome_root();
2159
2160         if (!res) {
2161                 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2162                 return False;
2163         }
2164
2165         /* First, check if there is a reset time to compare */
2166         if ((resettime == (uint32_t) -1) || (resettime == 0)) {
2167                 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2168                 return True;
2169         }
2170
2171         LastBadPassword = pdb_get_bad_password_time(sampass);
2172         DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2173                    (uint32_t) LastBadPassword, resettime, (uint32_t)time(NULL)));
2174         if (time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(resettime)*60)){
2175                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2176                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2177                 if (updated) {
2178                         *updated = True;
2179                 }
2180         }
2181
2182         return True;
2183 }
2184
2185 /*********************************************************************
2186  Update the ACB_AUTOLOCK flag checking the PDB_POLICY_LOCK_ACCOUNT_DURATION
2187 *********************************************************************/
2188
2189 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
2190 {
2191         uint32_t duration;
2192         time_t LastBadPassword;
2193         bool res;
2194
2195         if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2196                 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2197                         pdb_get_username(sampass)));
2198                 return True;
2199         }
2200
2201         become_root();
2202         res = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION, &duration);
2203         unbecome_root();
2204
2205         if (!res) {
2206                 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2207                 return False;
2208         }
2209
2210         /* First, check if there is a duration to compare */
2211         if ((duration == (uint32_t) -1)  || (duration == 0)) {
2212                 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2213                 return True;
2214         }
2215
2216         LastBadPassword = pdb_get_bad_password_time(sampass);
2217         DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2218                   pdb_get_username(sampass), (uint32_t)LastBadPassword, duration*60, (uint32_t)time(NULL)));
2219
2220         if (LastBadPassword == (time_t)0) {
2221                 DEBUG(1,("pdb_update_autolock_flag: Account %s "
2222                          "administratively locked out with no bad password "
2223                          "time. Leaving locked out.\n",
2224                          pdb_get_username(sampass) ));
2225                 return True;
2226         }
2227
2228         if ((time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(duration) * 60))) {
2229                 pdb_set_acct_ctrl(sampass,
2230                                   pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2231                                   PDB_CHANGED);
2232                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2233                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2234                 if (updated) {
2235                         *updated = True;
2236                 }
2237         }
2238
2239         return True;
2240 }
2241
2242 /*********************************************************************
2243  Increment the bad_password_count
2244 *********************************************************************/
2245
2246 bool pdb_increment_bad_password_count(struct samu *sampass)
2247 {
2248         uint32_t account_policy_lockout;
2249         bool autolock_updated = False, badpw_updated = False;
2250         bool ret;
2251
2252         /* Retrieve the account lockout policy */
2253         become_root();
2254         ret = pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2255         unbecome_root();
2256         if ( !ret ) {
2257                 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2258                 return False;
2259         }
2260
2261         /* If there is no policy, we don't need to continue checking */
2262         if (!account_policy_lockout) {
2263                 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2264                 return True;
2265         }
2266
2267         /* Check if the autolock needs to be cleared */
2268         if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2269                 return False;
2270
2271         /* Check if the badpw count needs to be reset */
2272         if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2273                 return False;
2274
2275         /*
2276           Ok, now we can assume that any resetting that needs to be
2277           done has been done, and just get on with incrementing
2278           and autolocking if necessary
2279         */
2280
2281         pdb_set_bad_password_count(sampass,
2282                                    pdb_get_bad_password_count(sampass)+1,
2283                                    PDB_CHANGED);
2284         pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2285
2286
2287         if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2288                 return True;
2289
2290         if (!pdb_set_acct_ctrl(sampass,
2291                                pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2292                                PDB_CHANGED)) {
2293                 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2294                 return False;
2295         }
2296
2297         return True;
2298 }
2299
2300 bool is_dc_trusted_domain_situation(const char *domain_name)
2301 {
2302         return IS_DC && !strequal(domain_name, lp_workgroup());
2303 }
2304
2305 /*******************************************************************
2306  Wrapper around retrieving the clear text trust account password.
2307  appropriate account name is stored in account_name.
2308  Caller must free password, but not account_name.
2309 *******************************************************************/
2310
2311 bool get_trust_pw_clear(const char *domain, char **ret_pwd,
2312                         const char **account_name,
2313                         enum netr_SchannelType *channel)
2314 {
2315         char *pwd;
2316         time_t last_set_time;
2317
2318         /* if we are a DC and this is not our domain, then lookup an account
2319          * for the domain trust */
2320
2321         if (is_dc_trusted_domain_situation(domain)) {
2322                 if (!lp_allow_trusted_domains()) {
2323                         return false;
2324                 }
2325
2326                 if (!pdb_get_trusteddom_pw(domain, ret_pwd, NULL,
2327                                            &last_set_time))
2328                 {
2329                         DEBUG(0, ("get_trust_pw: could not fetch trust "
2330                                 "account password for trusted domain %s\n",
2331                                 domain));
2332                         return false;
2333                 }
2334
2335                 if (channel != NULL) {
2336                         *channel = SEC_CHAN_DOMAIN;
2337                 }
2338
2339                 if (account_name != NULL) {
2340                         *account_name = lp_workgroup();
2341                 }
2342
2343                 return true;
2344         }
2345
2346         /*
2347          * Since we can only be member of one single domain, we are now
2348          * in a member situation:
2349          *
2350          *  -  Either we are a DC (selfjoined) and the domain is our
2351          *     own domain.
2352          *  -  Or we are on a member and the domain is our own or some
2353          *     other (potentially trusted) domain.
2354          *
2355          * In both cases, we can only get the machine account password
2356          * for our own domain to connect to our own dc. (For a member,
2357          * request to trusted domains are performed through our dc.)
2358          *
2359          * So we simply use our own domain name to retrieve the
2360          * machine account passowrd and ignore the request domain here.
2361          */
2362
2363         pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
2364
2365         if (pwd != NULL) {
2366                 *ret_pwd = pwd;
2367                 if (account_name != NULL) {
2368                         *account_name = lp_netbios_name();
2369                 }
2370
2371                 return true;
2372         }
2373
2374         DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
2375                   "account password for domain %s\n", domain));
2376         return false;
2377 }
2378
2379 /*******************************************************************
2380  Wrapper around retrieving the trust account password.
2381  appropriate account name is stored in account_name.
2382 *******************************************************************/
2383
2384 bool get_trust_pw_hash(const char *domain, uint8_t ret_pwd[16],
2385                        const char **account_name,
2386                        enum netr_SchannelType *channel)
2387 {
2388         char *pwd = NULL;
2389         time_t last_set_time;
2390
2391         if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
2392                 E_md4hash(pwd, ret_pwd);
2393                 SAFE_FREE(pwd);
2394                 return true;
2395         } else if (is_dc_trusted_domain_situation(domain)) {
2396                 return false;
2397         }
2398
2399         /* as a fallback, try to get the hashed pwd directly from the tdb... */
2400
2401         if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
2402                                                         &last_set_time,
2403                                                         channel))
2404         {
2405                 if (account_name != NULL) {
2406                         *account_name = lp_netbios_name();
2407                 }
2408
2409                 return true;
2410         }
2411
2412         DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
2413                 "password for domain %s\n", domain));
2414         return False;
2415 }