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
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_PASSDB
  29
  30 /******************************************************************
  31  Get the default domain/netbios name to be used when
  32  testing authentication.
  33
  34  LEGACY: this function provides the legacy domain mapping used with
  35          the lp_map_untrusted_to_domain() parameter
  36 ******************************************************************/
  37
  38 const char *my_sam_name(void)
  39 {
  40        /* Standalone servers can only use the local netbios name */
  41        if ( lp_server_role() == ROLE_STANDALONE )
  42                return global_myname();
  43
  44        /* Default to the DOMAIN name when not specified */
  45        return lp_workgroup();
  46 }
  47
  48 /**********************************************************************
  49 ***********************************************************************/
  50
  51 static int samu_destroy(struct samu *user)
  52 {
  53         data_blob_clear_free( &user->lm_pw );
  54         data_blob_clear_free( &user->nt_pw );
  55
  56         if ( user->plaintext_pw )
  57                 memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
  58
  59         return 0;
  60 }
  61
  62 /**********************************************************************
  63  generate a new struct samuser
  64 ***********************************************************************/
  65
  66 struct samu *samu_new( TALLOC_CTX *ctx )
  67 {
  68         struct samu *user;
  69
  70         if ( !(user = TALLOC_ZERO_P( ctx, struct samu )) ) {
  71                 DEBUG(0,("samuser_new: Talloc failed!\n"));
  72                 return NULL;
  73         }
  74
  75         talloc_set_destructor( user, samu_destroy );
  76
  77         /* no initial methods */
  78
  79         user->methods = NULL;
  80
  81         /* Don't change these timestamp settings without a good reason.
  82            They are important for NT member server compatibility. */
  83
  84         user->logon_time            = (time_t)0;
  85         user->pass_last_set_time    = (time_t)0;
  86         user->pass_can_change_time  = (time_t)0;
  87         user->logoff_time           = get_time_t_max();
  88         user->kickoff_time          = get_time_t_max();
  89         user->pass_must_change_time = get_time_t_max();
  90         user->fields_present        = 0x00ffffff;
  91         user->logon_divs = 168;         /* hours per week */
  92         user->hours_len = 21;           /* 21 times 8 bits = 168 */
  93         memset(user->hours, 0xff, user->hours_len); /* available at all hours */
  94         user->bad_password_count = 0;
  95         user->logon_count = 0;
  96         user->unknown_6 = 0x000004ec; /* don't know */
  97
  98         /* Some parts of samba strlen their pdb_get...() returns,
  99            so this keeps the interface unchanged for now. */
 100
 101         user->username = "";
 102         user->domain = "";
 103         user->nt_username = "";
 104         user->full_name = "";
 105         user->home_dir = "";
 106         user->logon_script = "";
 107         user->profile_path = "";
 108         user->acct_desc = "";
 109         user->workstations = "";
 110         user->comment = "";
 111         user->munged_dial = "";
 112
 113         user->plaintext_pw = NULL;
 114
 115         /* Unless we know otherwise have a Account Control Bit
 116            value of 'normal user'.  This helps User Manager, which
 117            asks for a filtered list of users. */
 118
 119         user->acct_ctrl = ACB_NORMAL;
 120
 121         return user;
 122 }
 123
 124 /*********************************************************************
 125  Initialize a struct samu from a struct passwd including the user
 126  and group SIDs.  The *user structure is filled out with the Unix
 127  attributes and a user SID.
 128 *********************************************************************/
 129
 130 static NTSTATUS samu_set_unix_internal(struct samu *user, const struct passwd *pwd, bool create)
 131 {
 132         const char *guest_account = lp_guestaccount();
 133         const char *domain = global_myname();
 134         uint32 urid;
 135
 136         if ( !pwd ) {
 137                 return NT_STATUS_NO_SUCH_USER;
 138         }
 139
 140         /* Basic properties based upon the Unix account information */
 141
 142         pdb_set_username(user, pwd->pw_name, PDB_SET);
 143         pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
 144         pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
 145 #if 0
 146         /* This can lead to a primary group of S-1-22-2-XX which
 147            will be rejected by other parts of the Samba code.
 148            Rely on pdb_get_group_sid() to "Do The Right Thing" (TM)
 149            --jerry */
 150
 151         gid_to_sid(&group_sid, pwd->pw_gid);
 152         pdb_set_group_sid(user, &group_sid, PDB_SET);
 153 #endif
 154
 155         /* save the password structure for later use */
 156
 157         user->unix_pw = tcopy_passwd( user, pwd );
 158
 159         /* Special case for the guest account which must have a RID of 501 */
 160
 161         if ( strequal( pwd->pw_name, guest_account ) ) {
 162                 if ( !pdb_set_user_sid_from_rid(user, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
 163                         return NT_STATUS_NO_SUCH_USER;
 164                 }
 165                 return NT_STATUS_OK;
 166         }
 167
 168         /* Non-guest accounts...Check for a workstation or user account */
 169
 170         if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
 171                 /* workstation */
 172
 173                 if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
 174                         DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n",
 175                                 pwd->pw_name));
 176                         return NT_STATUS_INVALID_COMPUTER_NAME;
 177                 }
 178         }
 179         else {
 180                 /* user */
 181
 182                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
 183                         DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n",
 184                                 pwd->pw_name));
 185                         return NT_STATUS_INVALID_ACCOUNT_NAME;
 186                 }
 187
 188                 /* set some basic attributes */
 189
 190                 pdb_set_profile_path(user, talloc_sub_specified(user,
 191                         lp_logon_path(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 192                         PDB_DEFAULT);
 193                 pdb_set_homedir(user, talloc_sub_specified(user,
 194                         lp_logon_home(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 195                         PDB_DEFAULT);
 196                 pdb_set_dir_drive(user, talloc_sub_specified(user,
 197                         lp_logon_drive(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 198                         PDB_DEFAULT);
 199                 pdb_set_logon_script(user, talloc_sub_specified(user,
 200                         lp_logon_script(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 201                         PDB_DEFAULT);
 202         }
 203
 204         /* Now deal with the user SID.  If we have a backend that can generate
 205            RIDs, then do so.  But sometimes the caller just wanted a structure
 206            initialized and will fill in these fields later (such as from a
 207            netr_SamInfo3 structure) */
 208
 209         if ( create && !pdb_rid_algorithm() ) {
 210                 uint32 user_rid;
 211                 DOM_SID user_sid;
 212
 213                 if ( !pdb_new_rid( &user_rid ) ) {
 214                         DEBUG(3, ("Could not allocate a new RID\n"));
 215                         return NT_STATUS_ACCESS_DENIED;
 216                 }
 217
 218                 sid_copy( &user_sid, get_global_sam_sid() );
 219                 sid_append_rid( &user_sid, user_rid );
 220
 221                 if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
 222                         DEBUG(3, ("pdb_set_user_sid failed\n"));
 223                         return NT_STATUS_INTERNAL_ERROR;
 224                 }
 225
 226                 return NT_STATUS_OK;
 227         }
 228
 229         /* generate a SID for the user with the RID algorithm */
 230
 231         urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
 232
 233         if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
 234                 return NT_STATUS_INTERNAL_ERROR;
 235         }
 236
 237         return NT_STATUS_OK;
 238 }
 239
 240 /********************************************************************
 241  Set the Unix user attributes
 242 ********************************************************************/
 243
 244 NTSTATUS samu_set_unix(struct samu *user, const struct passwd *pwd)
 245 {
 246         return samu_set_unix_internal( user, pwd, False );
 247 }
 248
 249 NTSTATUS samu_alloc_rid_unix(struct samu *user, const struct passwd *pwd)
 250 {
 251         return samu_set_unix_internal( user, pwd, True );
 252 }
 253
 254 /**********************************************************
 255  Encode the account control bits into a string.
 256  length = length of string to encode into (including terminating
 257  null). length *MUST BE MORE THAN 2* !
 258  **********************************************************/
 259
 260 char *pdb_encode_acct_ctrl(uint32_t acct_ctrl, size_t length)
 261 {
 262         fstring acct_str;
 263         char *result;
 264
 265         size_t i = 0;
 266
 267         SMB_ASSERT(length <= sizeof(acct_str));
 268
 269         acct_str[i++] = '[';
 270
 271         if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
 272         if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
 273         if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
 274         if (acct_ctrl & ACB_TEMPDUP  ) acct_str[i++] = 'T';
 275         if (acct_ctrl & ACB_NORMAL   ) acct_str[i++] = 'U';
 276         if (acct_ctrl & ACB_MNS      ) acct_str[i++] = 'M';
 277         if (acct_ctrl & ACB_WSTRUST  ) acct_str[i++] = 'W';
 278         if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
 279         if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
 280         if (acct_ctrl & ACB_PWNOEXP  ) acct_str[i++] = 'X';
 281         if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
 282
 283         for ( ; i < length - 2 ; i++ )
 284                 acct_str[i] = ' ';
 285
 286         i = length - 2;
 287         acct_str[i++] = ']';
 288         acct_str[i++] = '\0';
 289
 290         result = talloc_strdup(talloc_tos(), acct_str);
 291         SMB_ASSERT(result != NULL);
 292         return result;
 293 }
 294
 295 /**********************************************************
 296  Decode the account control bits from a string.
 297  **********************************************************/
 298
 299 uint32_t pdb_decode_acct_ctrl(const char *p)
 300 {
 301         uint32_t acct_ctrl = 0;
 302         bool finished = false;
 303
 304         /*
 305          * Check if the account type bits have been encoded after the
 306          * NT password (in the form [NDHTUWSLXI]).
 307          */
 308
 309         if (*p != '[')
 310                 return 0;
 311
 312         for (p++; *p && !finished; p++) {
 313                 switch (*p) {
 314                         case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
 315                         case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
 316                         case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
 317                         case 'T': { acct_ctrl |= ACB_TEMPDUP  ; break; /* 'T'emp account. */ }
 318                         case 'U': { acct_ctrl |= ACB_NORMAL   ; break; /* 'U'ser account (normal). */ }
 319                         case 'M': { acct_ctrl |= ACB_MNS      ; break; /* 'M'NS logon user account. What is this ? */ }
 320                         case 'W': { acct_ctrl |= ACB_WSTRUST  ; break; /* 'W'orkstation account. */ }
 321                         case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
 322                         case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
 323                         case 'X': { acct_ctrl |= ACB_PWNOEXP  ; break; /* No 'X'piry on password */ }
 324                         case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
 325             case ' ': { break; }
 326                         case ':':
 327                         case '\n':
 328                         case '\0':
 329                         case ']':
 330                         default:  { finished = true; }
 331                 }
 332         }
 333
 334         return acct_ctrl;
 335 }
 336
 337 /*************************************************************
 338  Routine to set 32 hex password characters from a 16 byte array.
 339 **************************************************************/
 340
 341 void pdb_sethexpwd(char p[33], const unsigned char *pwd, uint32 acct_ctrl)
 342 {
 343         if (pwd != NULL) {
 344                 int i;
 345                 for (i = 0; i < 16; i++)
 346                         slprintf(&p[i*2], 3, "%02X", pwd[i]);
 347         } else {
 348                 if (acct_ctrl & ACB_PWNOTREQ)
 349                         safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 32);
 350                 else
 351                         safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 32);
 352         }
 353 }
 354
 355 /*************************************************************
 356  Routine to get the 32 hex characters and turn them
 357  into a 16 byte array.
 358 **************************************************************/
 359
 360 bool pdb_gethexpwd(const char *p, unsigned char *pwd)
 361 {
 362         int i;
 363         unsigned char   lonybble, hinybble;
 364         const char      *hexchars = "0123456789ABCDEF";
 365         char           *p1, *p2;
 366
 367         if (!p)
 368                 return false;
 369
 370         for (i = 0; i < 32; i += 2) {
 371                 hinybble = toupper_ascii(p[i]);
 372                 lonybble = toupper_ascii(p[i + 1]);
 373
 374                 p1 = strchr(hexchars, hinybble);
 375                 p2 = strchr(hexchars, lonybble);
 376
 377                 if (!p1 || !p2)
 378                         return false;
 379
 380                 hinybble = PTR_DIFF(p1, hexchars);
 381                 lonybble = PTR_DIFF(p2, hexchars);
 382
 383                 pwd[i / 2] = (hinybble << 4) | lonybble;
 384         }
 385         return true;
 386 }
 387
 388 /*************************************************************
 389  Routine to set 42 hex hours characters from a 21 byte array.
 390 **************************************************************/
 391
 392 void pdb_sethexhours(char *p, const unsigned char *hours)
 393 {
 394         if (hours != NULL) {
 395                 int i;
 396                 for (i = 0; i < 21; i++) {
 397                         slprintf(&p[i*2], 3, "%02X", hours[i]);
 398                 }
 399         } else {
 400                 safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
 401         }
 402 }
 403
 404 /*************************************************************
 405  Routine to get the 42 hex characters and turn them
 406  into a 21 byte array.
 407 **************************************************************/
 408
 409 bool pdb_gethexhours(const char *p, unsigned char *hours)
 410 {
 411         int i;
 412         unsigned char   lonybble, hinybble;
 413         const char      *hexchars = "0123456789ABCDEF";
 414         char           *p1, *p2;
 415
 416         if (!p) {
 417                 return (False);
 418         }
 419
 420         for (i = 0; i < 42; i += 2) {
 421                 hinybble = toupper_ascii(p[i]);
 422                 lonybble = toupper_ascii(p[i + 1]);
 423
 424                 p1 = strchr(hexchars, hinybble);
 425                 p2 = strchr(hexchars, lonybble);
 426
 427                 if (!p1 || !p2) {
 428                         return (False);
 429                 }
 430
 431                 hinybble = PTR_DIFF(p1, hexchars);
 432                 lonybble = PTR_DIFF(p2, hexchars);
 433
 434                 hours[i / 2] = (hinybble << 4) | lonybble;
 435         }
 436         return (True);
 437 }
 438
 439 /********************************************************************
 440 ********************************************************************/
 441
 442 int algorithmic_rid_base(void)
 443 {
 444         int rid_offset;
 445
 446         rid_offset = lp_algorithmic_rid_base();
 447
 448         if (rid_offset < BASE_RID) {
 449                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 450                    rids below 1000, that's the 'well known RIDs' on NT */
 451                 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
 452                 rid_offset = BASE_RID;
 453         }
 454         if (rid_offset & 1) {
 455                 DEBUG(0, ("algorithmic rid base must be even\n"));
 456                 rid_offset += 1;
 457         }
 458         return rid_offset;
 459 }
 460
 461 /*******************************************************************
 462  Converts NT user RID to a UNIX uid.
 463  ********************************************************************/
 464
 465 uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
 466 {
 467         int rid_offset = algorithmic_rid_base();
 468         return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
 469 }
 470
 471 uid_t max_algorithmic_uid(void)
 472 {
 473         return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
 474 }
 475
 476 /*******************************************************************
 477  converts UNIX uid to an NT User RID.
 478  ********************************************************************/
 479
 480 uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
 481 {
 482         int rid_offset = algorithmic_rid_base();
 483         return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
 484 }
 485
 486 /*******************************************************************
 487  Converts NT group RID to a UNIX gid.
 488  ********************************************************************/
 489
 490 gid_t pdb_group_rid_to_gid(uint32 group_rid)
 491 {
 492         int rid_offset = algorithmic_rid_base();
 493         return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
 494 }
 495
 496 gid_t max_algorithmic_gid(void)
 497 {
 498         return pdb_group_rid_to_gid(0xffffffff);
 499 }
 500
 501 /*******************************************************************
 502  converts NT Group RID to a UNIX uid.
 503
 504  warning: you must not call that function only
 505  you must do a call to the group mapping first.
 506  there is not anymore a direct link between the gid and the rid.
 507  ********************************************************************/
 508
 509 uint32 algorithmic_pdb_gid_to_group_rid(gid_t gid)
 510 {
 511         int rid_offset = algorithmic_rid_base();
 512         return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
 513 }
 514
 515 /*******************************************************************
 516  Decides if a RID is a well known RID.
 517  ********************************************************************/
 518
 519 static bool rid_is_well_known(uint32 rid)
 520 {
 521         /* Not using rid_offset here, because this is the actual
 522            NT fixed value (1000) */
 523
 524         return (rid < BASE_RID);
 525 }
 526
 527 /*******************************************************************
 528  Decides if a RID is a user or group RID.
 529  ********************************************************************/
 530
 531 bool algorithmic_pdb_rid_is_user(uint32 rid)
 532 {
 533         if ( rid_is_well_known(rid) ) {
 534                 /*
 535                  * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
 536                  * and DOMAIN_USER_RID_GUEST.
 537                  */
 538                 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
 539                         return True;
 540         } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
 541                 return True;
 542         }
 543         return False;
 544 }
 545
 546 /*******************************************************************
 547  Convert a name into a SID. Used in the lookup name rpc.
 548  ********************************************************************/
 549
 550 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
 551                             enum lsa_SidType *type)
 552 {
 553         GROUP_MAP map;
 554         bool ret;
 555
 556         /* Windows treats "MACHINE\None" as a special name for
 557            rid 513 on non-DCs.  You cannot create a user or group
 558            name "None" on Windows.  You will get an error that
 559            the group already exists. */
 560
 561         if ( strequal( name, "None" ) ) {
 562                 *rid = DOMAIN_GROUP_RID_USERS;
 563                 *type = SID_NAME_DOM_GRP;
 564
 565                 return True;
 566         }
 567
 568         /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
 569          * correctly in the case where foo also exists as a user. If the flag
 570          * is set, don't look for users at all. */
 571
 572         if ((flags & LOOKUP_NAME_GROUP) == 0) {
 573                 struct samu *sam_account = NULL;
 574                 DOM_SID user_sid;
 575
 576                 if ( !(sam_account = samu_new( NULL )) ) {
 577                         return False;
 578                 }
 579
 580                 become_root();
 581                 ret =  pdb_getsampwnam(sam_account, name);
 582                 unbecome_root();
 583
 584                 if (ret) {
 585                         sid_copy(&user_sid, pdb_get_user_sid(sam_account));
 586                 }
 587
 588                 TALLOC_FREE(sam_account);
 589
 590                 if (ret) {
 591                         if (!sid_check_is_in_our_domain(&user_sid)) {
 592                                 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
 593                                           name, sid_string_dbg(&user_sid)));
 594                                 return False;
 595                         }
 596
 597                         sid_peek_rid(&user_sid, rid);
 598                         *type = SID_NAME_USER;
 599                         return True;
 600                 }
 601         }
 602
 603         /*
 604          * Maybe it is a group ?
 605          */
 606
 607         become_root();
 608         ret = pdb_getgrnam(&map, name);
 609         unbecome_root();
 610
 611         if (!ret) {
 612                 return False;
 613         }
 614
 615         /* BUILTIN groups are looked up elsewhere */
 616         if (!sid_check_is_in_our_domain(&map.sid)) {
 617                 DEBUG(10, ("Found group %s (%s) not in our domain -- "
 618                            "ignoring.", name, sid_string_dbg(&map.sid)));
 619                 return False;
 620         }
 621
 622         /* yes it's a mapped group */
 623         sid_peek_rid(&map.sid, rid);
 624         *type = map.sid_name_use;
 625         return True;
 626 }
 627
 628 /*************************************************************
 629  Change a password entry in the local smbpasswd file.
 630  *************************************************************/
 631
 632 NTSTATUS local_password_change(const char *user_name,
 633                                 int local_flags,
 634                                 const char *new_passwd,
 635                                 char **pp_err_str,
 636                                 char **pp_msg_str)
 637 {
 638         struct samu *sam_pass=NULL;
 639         uint32 other_acb;
 640         NTSTATUS result;
 641
 642         *pp_err_str = NULL;
 643         *pp_msg_str = NULL;
 644
 645         /* Get the smb passwd entry for this user */
 646
 647         if ( !(sam_pass = samu_new( NULL )) ) {
 648                 return NT_STATUS_NO_MEMORY;
 649         }
 650
 651         become_root();
 652         if(!pdb_getsampwnam(sam_pass, user_name)) {
 653                 unbecome_root();
 654                 TALLOC_FREE(sam_pass);
 655
 656                 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
 657                         int tmp_debug = DEBUGLEVEL;
 658                         struct passwd *pwd;
 659
 660                         /* Might not exist in /etc/passwd. */
 661
 662                         if (tmp_debug < 1) {
 663                                 DEBUGLEVEL = 1;
 664                         }
 665
 666                         if ( !(pwd = getpwnam_alloc(talloc_autofree_context(), user_name)) ) {
 667                                 return NT_STATUS_NO_SUCH_USER;
 668                         }
 669
 670                         /* create the struct samu and initialize the basic Unix properties */
 671
 672                         if ( !(sam_pass = samu_new( NULL )) ) {
 673                                 return NT_STATUS_NO_MEMORY;
 674                         }
 675
 676                         result = samu_set_unix( sam_pass, pwd );
 677
 678                         DEBUGLEVEL = tmp_debug;
 679
 680                         TALLOC_FREE( pwd );
 681
 682                         if (NT_STATUS_EQUAL(result, NT_STATUS_INVALID_PRIMARY_GROUP)) {
 683                                 return result;
 684                         }
 685
 686                         if (!NT_STATUS_IS_OK(result)) {
 687                                 if (asprintf(pp_err_str, "Failed to " "initialize account for user %s: %s\n",
 688                                                 user_name, nt_errstr(result)) < 0) {
 689                                         *pp_err_str = NULL;
 690                                 }
 691                                 return result;
 692                         }
 693                 } else {
 694                         if (asprintf(pp_err_str, "Failed to find entry for user %s.\n", user_name) < 0) {
 695                                 *pp_err_str = NULL;
 696                         }
 697                         return NT_STATUS_NO_SUCH_USER;
 698                 }
 699         } else {
 700                 unbecome_root();
 701                 /* the entry already existed */
 702                 local_flags &= ~LOCAL_ADD_USER;
 703         }
 704
 705         /* the 'other' acb bits not being changed here */
 706         other_acb =  (pdb_get_acct_ctrl(sam_pass) & (~(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
 707         if (local_flags & LOCAL_TRUST_ACCOUNT) {
 708                 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
 709                         if (asprintf(pp_err_str, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name) < 0) {
 710                                 *pp_err_str = NULL;
 711                         }
 712                         TALLOC_FREE(sam_pass);
 713                         return NT_STATUS_UNSUCCESSFUL;
 714                 }
 715         } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
 716                 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
 717                         if (asprintf(pp_err_str, "Failed to set 'domain trust account' flags for user %s.\n", user_name) < 0) {
 718                                 *pp_err_str = NULL;
 719                         }
 720                         TALLOC_FREE(sam_pass);
 721                         return NT_STATUS_UNSUCCESSFUL;
 722                 }
 723         } else {
 724                 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
 725                         if (asprintf(pp_err_str, "Failed to set 'normal account' flags for user %s.\n", user_name) < 0) {
 726                                 *pp_err_str = NULL;
 727                         }
 728                         TALLOC_FREE(sam_pass);
 729                         return NT_STATUS_UNSUCCESSFUL;
 730                 }
 731         }
 732
 733         /*
 734          * We are root - just write the new password
 735          * and the valid last change time.
 736          */
 737
 738         if (local_flags & LOCAL_DISABLE_USER) {
 739                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
 740                         if (asprintf(pp_err_str, "Failed to set 'disabled' flag for user %s.\n", user_name) < 0) {
 741                                 *pp_err_str = NULL;
 742                         }
 743                         TALLOC_FREE(sam_pass);
 744                         return NT_STATUS_UNSUCCESSFUL;
 745                 }
 746         } else if (local_flags & LOCAL_ENABLE_USER) {
 747                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
 748                         if (asprintf(pp_err_str, "Failed to unset 'disabled' flag for user %s.\n", user_name) < 0) {
 749                                 *pp_err_str = NULL;
 750                         }
 751                         TALLOC_FREE(sam_pass);
 752                         return NT_STATUS_UNSUCCESSFUL;
 753                 }
 754         }
 755
 756         if (local_flags & LOCAL_SET_NO_PASSWORD) {
 757                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
 758                         if (asprintf(pp_err_str, "Failed to set 'no password required' flag for user %s.\n", user_name) < 0) {
 759                                 *pp_err_str = NULL;
 760                         }
 761                         TALLOC_FREE(sam_pass);
 762                         return NT_STATUS_UNSUCCESSFUL;
 763                 }
 764         } else if (local_flags & LOCAL_SET_PASSWORD) {
 765                 /*
 766                  * If we're dealing with setting a completely empty user account
 767                  * ie. One with a password of 'XXXX', but not set disabled (like
 768                  * an account created from scratch) then if the old password was
 769                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
 770                  * We remove that as we're giving this user their first password
 771                  * and the decision hasn't really been made to disable them (ie.
 772                  * don't create them disabled). JRA.
 773                  */
 774                 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
 775                         if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
 776                                 if (asprintf(pp_err_str, "Failed to unset 'disabled' flag for user %s.\n", user_name) < 0) {
 777                                         *pp_err_str = NULL;
 778                                 }
 779                                 TALLOC_FREE(sam_pass);
 780                                 return NT_STATUS_UNSUCCESSFUL;
 781                         }
 782                 }
 783                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
 784                         if (asprintf(pp_err_str, "Failed to unset 'no password required' flag for user %s.\n", user_name) < 0) {
 785                                 *pp_err_str = NULL;
 786                         }
 787                         TALLOC_FREE(sam_pass);
 788                         return NT_STATUS_UNSUCCESSFUL;
 789                 }
 790
 791                 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
 792                         if (asprintf(pp_err_str, "Failed to set password for user %s.\n", user_name) < 0) {
 793                                 *pp_err_str = NULL;
 794                         }
 795                         TALLOC_FREE(sam_pass);
 796                         return NT_STATUS_UNSUCCESSFUL;
 797                 }
 798         }
 799
 800         if (local_flags & LOCAL_ADD_USER) {
 801                 if (NT_STATUS_IS_OK(pdb_add_sam_account(sam_pass))) {
 802                         if (asprintf(pp_msg_str, "Added user %s.\n", user_name) < 0) {
 803                                 *pp_msg_str = NULL;
 804                         }
 805                         TALLOC_FREE(sam_pass);
 806                         return NT_STATUS_OK;
 807                 } else {
 808                         if (asprintf(pp_err_str, "Failed to add entry for user %s.\n", user_name) < 0) {
 809                                 *pp_err_str = NULL;
 810                         }
 811                         TALLOC_FREE(sam_pass);
 812                         return NT_STATUS_UNSUCCESSFUL;
 813                 }
 814         } else if (local_flags & LOCAL_DELETE_USER) {
 815                 if (!NT_STATUS_IS_OK(pdb_delete_sam_account(sam_pass))) {
 816                         if (asprintf(pp_err_str, "Failed to delete entry for user %s.\n", user_name) < 0) {
 817                                 *pp_err_str = NULL;
 818                         }
 819                         TALLOC_FREE(sam_pass);
 820                         return NT_STATUS_UNSUCCESSFUL;
 821                 }
 822                 if (asprintf(pp_msg_str, "Deleted user %s.\n", user_name) < 0) {
 823                         *pp_msg_str = NULL;
 824                 }
 825         } else {
 826                 result = pdb_update_sam_account(sam_pass);
 827                 if(!NT_STATUS_IS_OK(result)) {
 828                         if (asprintf(pp_err_str, "Failed to modify entry for user %s.\n", user_name) < 0) {
 829                                 *pp_err_str = NULL;
 830                         }
 831                         TALLOC_FREE(sam_pass);
 832                         return result;
 833                 }
 834                 if(local_flags & LOCAL_DISABLE_USER) {
 835                         if (asprintf(pp_msg_str, "Disabled user %s.\n", user_name) < 0) {
 836                                 *pp_msg_str = NULL;
 837                         }
 838                 } else if (local_flags & LOCAL_ENABLE_USER) {
 839                         if (asprintf(pp_msg_str, "Enabled user %s.\n", user_name) < 0) {
 840                                 *pp_msg_str = NULL;
 841                         }
 842                 } else if (local_flags & LOCAL_SET_NO_PASSWORD) {
 843                         if (asprintf(pp_msg_str, "User %s password set to none.\n", user_name) < 0) {
 844                                 *pp_msg_str = NULL;
 845                         }
 846                 }
 847         }
 848
 849         TALLOC_FREE(sam_pass);
 850         return NT_STATUS_OK;
 851 }
 852
 853 /**********************************************************************
 854  Marshall/unmarshall struct samu structs.
 855  *********************************************************************/
 856
 857 #define SAMU_BUFFER_FORMAT_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
 858 #define SAMU_BUFFER_FORMAT_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
 859 #define SAMU_BUFFER_FORMAT_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
 860 #define SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
 861 /* nothing changed between V3 and V4 */
 862
 863 /*********************************************************************
 864 *********************************************************************/
 865
 866 static bool init_samu_from_buffer_v0(struct samu *sampass, uint8 *buf, uint32 buflen)
 867 {
 868
 869         /* times are stored as 32bit integer
 870            take care on system with 64bit wide time_t
 871            --SSS */
 872         uint32  logon_time,
 873                 logoff_time,
 874                 kickoff_time,
 875                 pass_last_set_time,
 876                 pass_can_change_time,
 877                 pass_must_change_time;
 878         char *username = NULL;
 879         char *domain = NULL;
 880         char *nt_username = NULL;
 881         char *dir_drive = NULL;
 882         char *unknown_str = NULL;
 883         char *munged_dial = NULL;
 884         char *fullname = NULL;
 885         char *homedir = NULL;
 886         char *logon_script = NULL;
 887         char *profile_path = NULL;
 888         char *acct_desc = NULL;
 889         char *workstations = NULL;
 890         uint32  username_len, domain_len, nt_username_len,
 891                 dir_drive_len, unknown_str_len, munged_dial_len,
 892                 fullname_len, homedir_len, logon_script_len,
 893                 profile_path_len, acct_desc_len, workstations_len;
 894
 895         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
 896         uint16  acct_ctrl, logon_divs;
 897         uint16  bad_password_count, logon_count;
 898         uint8   *hours = NULL;
 899         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
 900         uint32          len = 0;
 901         uint32          lm_pw_len, nt_pw_len, hourslen;
 902         bool ret = True;
 903
 904         if(sampass == NULL || buf == NULL) {
 905                 DEBUG(0, ("init_samu_from_buffer_v0: NULL parameters found!\n"));
 906                 return False;
 907         }
 908
 909 /* SAMU_BUFFER_FORMAT_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
 910
 911         /* unpack the buffer into variables */
 912         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V0,
 913                 &logon_time,                                            /* d */
 914                 &logoff_time,                                           /* d */
 915                 &kickoff_time,                                          /* d */
 916                 &pass_last_set_time,                                    /* d */
 917                 &pass_can_change_time,                                  /* d */
 918                 &pass_must_change_time,                                 /* d */
 919                 &username_len, &username,                               /* B */
 920                 &domain_len, &domain,                                   /* B */
 921                 &nt_username_len, &nt_username,                         /* B */
 922                 &fullname_len, &fullname,                               /* B */
 923                 &homedir_len, &homedir,                                 /* B */
 924                 &dir_drive_len, &dir_drive,                             /* B */
 925                 &logon_script_len, &logon_script,                       /* B */
 926                 &profile_path_len, &profile_path,                       /* B */
 927                 &acct_desc_len, &acct_desc,                             /* B */
 928                 &workstations_len, &workstations,                       /* B */
 929                 &unknown_str_len, &unknown_str,                         /* B */
 930                 &munged_dial_len, &munged_dial,                         /* B */
 931                 &user_rid,                                              /* d */
 932                 &group_rid,                                             /* d */
 933                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
 934                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
 935                 &acct_ctrl,                                             /* w */
 936                 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
 937                 &logon_divs,                                            /* w */
 938                 &hours_len,                                             /* d */
 939                 &hourslen, &hours,                                      /* B */
 940                 &bad_password_count,                                    /* w */
 941                 &logon_count,                                           /* w */
 942                 &unknown_6);                                            /* d */
 943
 944         if (len == (uint32) -1)  {
 945                 ret = False;
 946                 goto done;
 947         }
 948
 949         pdb_set_logon_time(sampass, logon_time, PDB_SET);
 950         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 951         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 952         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
 953         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
 954         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
 955
 956         pdb_set_username(sampass, username, PDB_SET);
 957         pdb_set_domain(sampass, domain, PDB_SET);
 958         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 959         pdb_set_fullname(sampass, fullname, PDB_SET);
 960
 961         if (homedir) {
 962                 pdb_set_homedir(sampass, homedir, PDB_SET);
 963         }
 964         else {
 965                 pdb_set_homedir(sampass,
 966                         talloc_sub_basic(sampass, username, domain,
 967                                          lp_logon_home()),
 968                         PDB_DEFAULT);
 969         }
 970
 971         if (dir_drive)
 972                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 973         else {
 974                 pdb_set_dir_drive(sampass,
 975                         talloc_sub_basic(sampass, username, domain,
 976                                          lp_logon_drive()),
 977                         PDB_DEFAULT);
 978         }
 979
 980         if (logon_script)
 981                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
 982         else {
 983                 pdb_set_logon_script(sampass,
 984                         talloc_sub_basic(sampass, username, domain,
 985                                          lp_logon_script()),
 986                         PDB_DEFAULT);
 987         }
 988
 989         if (profile_path) {
 990                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
 991         } else {
 992                 pdb_set_profile_path(sampass,
 993                         talloc_sub_basic(sampass, username, domain,
 994                                          lp_logon_path()),
 995                         PDB_DEFAULT);
 996         }
 997
 998         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 999         pdb_set_workstations(sampass, workstations, PDB_SET);
1000         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1001
1002         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1003                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1004                         ret = False;
1005                         goto done;
1006                 }
1007         }
1008
1009         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1010                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1011                         ret = False;
1012                         goto done;
1013                 }
1014         }
1015
1016         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1017         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1018         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1019         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1020         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1021         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1022         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1023         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1024         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1025         pdb_set_hours(sampass, hours, PDB_SET);
1026
1027 done:
1028
1029         SAFE_FREE(username);
1030         SAFE_FREE(domain);
1031         SAFE_FREE(nt_username);
1032         SAFE_FREE(fullname);
1033         SAFE_FREE(homedir);
1034         SAFE_FREE(dir_drive);
1035         SAFE_FREE(logon_script);
1036         SAFE_FREE(profile_path);
1037         SAFE_FREE(acct_desc);
1038         SAFE_FREE(workstations);
1039         SAFE_FREE(munged_dial);
1040         SAFE_FREE(unknown_str);
1041         SAFE_FREE(lm_pw_ptr);
1042         SAFE_FREE(nt_pw_ptr);
1043         SAFE_FREE(hours);
1044
1045         return ret;
1046 }
1047
1048 /*********************************************************************
1049 *********************************************************************/
1050
1051 static bool init_samu_from_buffer_v1(struct samu *sampass, uint8 *buf, uint32 buflen)
1052 {
1053
1054         /* times are stored as 32bit integer
1055            take care on system with 64bit wide time_t
1056            --SSS */
1057         uint32  logon_time,
1058                 logoff_time,
1059                 kickoff_time,
1060                 bad_password_time,
1061                 pass_last_set_time,
1062                 pass_can_change_time,
1063                 pass_must_change_time;
1064         char *username = NULL;
1065         char *domain = NULL;
1066         char *nt_username = NULL;
1067         char *dir_drive = NULL;
1068         char *unknown_str = NULL;
1069         char *munged_dial = NULL;
1070         char *fullname = NULL;
1071         char *homedir = NULL;
1072         char *logon_script = NULL;
1073         char *profile_path = NULL;
1074         char *acct_desc = NULL;
1075         char *workstations = NULL;
1076         uint32  username_len, domain_len, nt_username_len,
1077                 dir_drive_len, unknown_str_len, munged_dial_len,
1078                 fullname_len, homedir_len, logon_script_len,
1079                 profile_path_len, acct_desc_len, workstations_len;
1080
1081         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
1082         uint16  acct_ctrl, logon_divs;
1083         uint16  bad_password_count, logon_count;
1084         uint8   *hours = NULL;
1085         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1086         uint32          len = 0;
1087         uint32          lm_pw_len, nt_pw_len, hourslen;
1088         bool ret = True;
1089
1090         if(sampass == NULL || buf == NULL) {
1091                 DEBUG(0, ("init_samu_from_buffer_v1: NULL parameters found!\n"));
1092                 return False;
1093         }
1094
1095 /* SAMU_BUFFER_FORMAT_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1096
1097         /* unpack the buffer into variables */
1098         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V1,
1099                 &logon_time,                                            /* d */
1100                 &logoff_time,                                           /* d */
1101                 &kickoff_time,                                          /* d */
1102                 /* Change from V0 is addition of bad_password_time field. */
1103                 &bad_password_time,                                     /* d */
1104                 &pass_last_set_time,                                    /* d */
1105                 &pass_can_change_time,                                  /* d */
1106                 &pass_must_change_time,                                 /* d */
1107                 &username_len, &username,                               /* B */
1108                 &domain_len, &domain,                                   /* B */
1109                 &nt_username_len, &nt_username,                         /* B */
1110                 &fullname_len, &fullname,                               /* B */
1111                 &homedir_len, &homedir,                                 /* B */
1112                 &dir_drive_len, &dir_drive,                             /* B */
1113                 &logon_script_len, &logon_script,                       /* B */
1114                 &profile_path_len, &profile_path,                       /* B */
1115                 &acct_desc_len, &acct_desc,                             /* B */
1116                 &workstations_len, &workstations,                       /* B */
1117                 &unknown_str_len, &unknown_str,                         /* B */
1118                 &munged_dial_len, &munged_dial,                         /* B */
1119                 &user_rid,                                              /* d */
1120                 &group_rid,                                             /* d */
1121                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1122                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1123                 &acct_ctrl,                                             /* w */
1124                 &remove_me,                                             /* d */
1125                 &logon_divs,                                            /* w */
1126                 &hours_len,                                             /* d */
1127                 &hourslen, &hours,                                      /* B */
1128                 &bad_password_count,                                    /* w */
1129                 &logon_count,                                           /* w */
1130                 &unknown_6);                                            /* d */
1131
1132         if (len == (uint32) -1)  {
1133                 ret = False;
1134                 goto done;
1135         }
1136
1137         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1138         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1139         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1140
1141         /* Change from V0 is addition of bad_password_time field. */
1142         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1143         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1144         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1145         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1146
1147         pdb_set_username(sampass, username, PDB_SET);
1148         pdb_set_domain(sampass, domain, PDB_SET);
1149         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1150         pdb_set_fullname(sampass, fullname, PDB_SET);
1151
1152         if (homedir) {
1153                 pdb_set_homedir(sampass, homedir, PDB_SET);
1154         }
1155         else {
1156                 pdb_set_homedir(sampass,
1157                         talloc_sub_basic(sampass, username, domain,
1158                                          lp_logon_home()),
1159                         PDB_DEFAULT);
1160         }
1161
1162         if (dir_drive)
1163                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1164         else {
1165                 pdb_set_dir_drive(sampass,
1166                         talloc_sub_basic(sampass, username, domain,
1167                                          lp_logon_drive()),
1168                         PDB_DEFAULT);
1169         }
1170
1171         if (logon_script)
1172                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1173         else {
1174                 pdb_set_logon_script(sampass,
1175                         talloc_sub_basic(sampass, username, domain,
1176                                          lp_logon_script()),
1177                         PDB_DEFAULT);
1178         }
1179
1180         if (profile_path) {
1181                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1182         } else {
1183                 pdb_set_profile_path(sampass,
1184                         talloc_sub_basic(sampass, username, domain,
1185                                          lp_logon_path()),
1186                         PDB_DEFAULT);
1187         }
1188
1189         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1190         pdb_set_workstations(sampass, workstations, PDB_SET);
1191         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1192
1193         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1194                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1195                         ret = False;
1196                         goto done;
1197                 }
1198         }
1199
1200         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1201                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1202                         ret = False;
1203                         goto done;
1204                 }
1205         }
1206
1207         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1208
1209         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1210         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1211         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1212         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1213         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1214         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1215         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1216         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1217         pdb_set_hours(sampass, hours, PDB_SET);
1218
1219 done:
1220
1221         SAFE_FREE(username);
1222         SAFE_FREE(domain);
1223         SAFE_FREE(nt_username);
1224         SAFE_FREE(fullname);
1225         SAFE_FREE(homedir);
1226         SAFE_FREE(dir_drive);
1227         SAFE_FREE(logon_script);
1228         SAFE_FREE(profile_path);
1229         SAFE_FREE(acct_desc);
1230         SAFE_FREE(workstations);
1231         SAFE_FREE(munged_dial);
1232         SAFE_FREE(unknown_str);
1233         SAFE_FREE(lm_pw_ptr);
1234         SAFE_FREE(nt_pw_ptr);
1235         SAFE_FREE(hours);
1236
1237         return ret;
1238 }
1239
1240 static bool init_samu_from_buffer_v2(struct samu *sampass, uint8 *buf, uint32 buflen)
1241 {
1242
1243         /* times are stored as 32bit integer
1244            take care on system with 64bit wide time_t
1245            --SSS */
1246         uint32  logon_time,
1247                 logoff_time,
1248                 kickoff_time,
1249                 bad_password_time,
1250                 pass_last_set_time,
1251                 pass_can_change_time,
1252                 pass_must_change_time;
1253         char *username = NULL;
1254         char *domain = NULL;
1255         char *nt_username = NULL;
1256         char *dir_drive = NULL;
1257         char *unknown_str = NULL;
1258         char *munged_dial = NULL;
1259         char *fullname = NULL;
1260         char *homedir = NULL;
1261         char *logon_script = NULL;
1262         char *profile_path = NULL;
1263         char *acct_desc = NULL;
1264         char *workstations = NULL;
1265         uint32  username_len, domain_len, nt_username_len,
1266                 dir_drive_len, unknown_str_len, munged_dial_len,
1267                 fullname_len, homedir_len, logon_script_len,
1268                 profile_path_len, acct_desc_len, workstations_len;
1269
1270         uint32  user_rid, group_rid, hours_len, unknown_6;
1271         uint16  acct_ctrl, logon_divs;
1272         uint16  bad_password_count, logon_count;
1273         uint8   *hours = NULL;
1274         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1275         uint32          len = 0;
1276         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1277         uint32 pwHistLen = 0;
1278         bool ret = True;
1279         fstring tmp_string;
1280         bool expand_explicit = lp_passdb_expand_explicit();
1281
1282         if(sampass == NULL || buf == NULL) {
1283                 DEBUG(0, ("init_samu_from_buffer_v2: NULL parameters found!\n"));
1284                 return False;
1285         }
1286
1287 /* SAMU_BUFFER_FORMAT_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1288
1289         /* unpack the buffer into variables */
1290         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V2,
1291                 &logon_time,                                            /* d */
1292                 &logoff_time,                                           /* d */
1293                 &kickoff_time,                                          /* d */
1294                 &bad_password_time,                                     /* d */
1295                 &pass_last_set_time,                                    /* d */
1296                 &pass_can_change_time,                                  /* d */
1297                 &pass_must_change_time,                                 /* d */
1298                 &username_len, &username,                               /* B */
1299                 &domain_len, &domain,                                   /* B */
1300                 &nt_username_len, &nt_username,                         /* B */
1301                 &fullname_len, &fullname,                               /* B */
1302                 &homedir_len, &homedir,                                 /* B */
1303                 &dir_drive_len, &dir_drive,                             /* B */
1304                 &logon_script_len, &logon_script,                       /* B */
1305                 &profile_path_len, &profile_path,                       /* B */
1306                 &acct_desc_len, &acct_desc,                             /* B */
1307                 &workstations_len, &workstations,                       /* B */
1308                 &unknown_str_len, &unknown_str,                         /* B */
1309                 &munged_dial_len, &munged_dial,                         /* B */
1310                 &user_rid,                                              /* d */
1311                 &group_rid,                                             /* d */
1312                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1313                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1314                 /* Change from V1 is addition of password history field. */
1315                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1316                 &acct_ctrl,                                             /* w */
1317                 /* Also "remove_me" field was removed. */
1318                 &logon_divs,                                            /* w */
1319                 &hours_len,                                             /* d */
1320                 &hourslen, &hours,                                      /* B */
1321                 &bad_password_count,                                    /* w */
1322                 &logon_count,                                           /* w */
1323                 &unknown_6);                                            /* d */
1324
1325         if (len == (uint32) -1)  {
1326                 ret = False;
1327                 goto done;
1328         }
1329
1330         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1331         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1332         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1333         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1334         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1335         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1336         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1337
1338         pdb_set_username(sampass, username, PDB_SET);
1339         pdb_set_domain(sampass, domain, PDB_SET);
1340         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1341         pdb_set_fullname(sampass, fullname, PDB_SET);
1342
1343         if (homedir) {
1344                 fstrcpy( tmp_string, homedir );
1345                 if (expand_explicit) {
1346                         standard_sub_basic( username, domain, tmp_string,
1347                                             sizeof(tmp_string) );
1348                 }
1349                 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1350         }
1351         else {
1352                 pdb_set_homedir(sampass,
1353                         talloc_sub_basic(sampass, username, domain,
1354                                          lp_logon_home()),
1355                         PDB_DEFAULT);
1356         }
1357
1358         if (dir_drive)
1359                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1360         else
1361                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1362
1363         if (logon_script) {
1364                 fstrcpy( tmp_string, logon_script );
1365                 if (expand_explicit) {
1366                         standard_sub_basic( username, domain, tmp_string,
1367                                             sizeof(tmp_string) );
1368                 }
1369                 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1370         }
1371         else {
1372                 pdb_set_logon_script(sampass,
1373                         talloc_sub_basic(sampass, username, domain,
1374                                          lp_logon_script()),
1375                         PDB_DEFAULT);
1376         }
1377
1378         if (profile_path) {
1379                 fstrcpy( tmp_string, profile_path );
1380                 if (expand_explicit) {
1381                         standard_sub_basic( username, domain, tmp_string,
1382                                             sizeof(tmp_string) );
1383                 }
1384                 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1385         }
1386         else {
1387                 pdb_set_profile_path(sampass,
1388                         talloc_sub_basic(sampass, username, domain,
1389                                          lp_logon_path()),
1390                         PDB_DEFAULT);
1391         }
1392
1393         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1394         pdb_set_workstations(sampass, workstations, PDB_SET);
1395         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1396
1397         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1398                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1399                         ret = False;
1400                         goto done;
1401                 }
1402         }
1403
1404         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1405                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1406                         ret = False;
1407                         goto done;
1408                 }
1409         }
1410
1411         /* Change from V1 is addition of password history field. */
1412         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1413         if (pwHistLen) {
1414                 uint8 *pw_hist = SMB_MALLOC_ARRAY(uint8, pwHistLen * PW_HISTORY_ENTRY_LEN);
1415                 if (!pw_hist) {
1416                         ret = False;
1417                         goto done;
1418                 }
1419                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1420                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1421                         int i;
1422                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1423                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1424                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1425                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1426                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1427                                         PW_HISTORY_ENTRY_LEN);
1428                         }
1429                 }
1430                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1431                         SAFE_FREE(pw_hist);
1432                         ret = False;
1433                         goto done;
1434                 }
1435                 SAFE_FREE(pw_hist);
1436         } else {
1437                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1438         }
1439
1440         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1441         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1442         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1443         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1444         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1445         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1446         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1447         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1448         pdb_set_hours(sampass, hours, PDB_SET);
1449
1450 done:
1451
1452         SAFE_FREE(username);
1453         SAFE_FREE(domain);
1454         SAFE_FREE(nt_username);
1455         SAFE_FREE(fullname);
1456         SAFE_FREE(homedir);
1457         SAFE_FREE(dir_drive);
1458         SAFE_FREE(logon_script);
1459         SAFE_FREE(profile_path);
1460         SAFE_FREE(acct_desc);
1461         SAFE_FREE(workstations);
1462         SAFE_FREE(munged_dial);
1463         SAFE_FREE(unknown_str);
1464         SAFE_FREE(lm_pw_ptr);
1465         SAFE_FREE(nt_pw_ptr);
1466         SAFE_FREE(nt_pw_hist_ptr);
1467         SAFE_FREE(hours);
1468
1469         return ret;
1470 }
1471
1472 /*********************************************************************
1473 *********************************************************************/
1474
1475 static bool init_samu_from_buffer_v3(struct samu *sampass, uint8 *buf, uint32 buflen)
1476 {
1477
1478         /* times are stored as 32bit integer
1479            take care on system with 64bit wide time_t
1480            --SSS */
1481         uint32  logon_time,
1482                 logoff_time,
1483                 kickoff_time,
1484                 bad_password_time,
1485                 pass_last_set_time,
1486                 pass_can_change_time,
1487                 pass_must_change_time;
1488         char *username = NULL;
1489         char *domain = NULL;
1490         char *nt_username = NULL;
1491         char *dir_drive = NULL;
1492         char *unknown_str = NULL;
1493         char *munged_dial = NULL;
1494         char *fullname = NULL;
1495         char *homedir = NULL;
1496         char *logon_script = NULL;
1497         char *profile_path = NULL;
1498         char *acct_desc = NULL;
1499         char *workstations = NULL;
1500         uint32  username_len, domain_len, nt_username_len,
1501                 dir_drive_len, unknown_str_len, munged_dial_len,
1502                 fullname_len, homedir_len, logon_script_len,
1503                 profile_path_len, acct_desc_len, workstations_len;
1504
1505         uint32  user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
1506         uint16  logon_divs;
1507         uint16  bad_password_count, logon_count;
1508         uint8   *hours = NULL;
1509         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1510         uint32          len = 0;
1511         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1512         uint32 pwHistLen = 0;
1513         bool ret = True;
1514         fstring tmp_string;
1515         bool expand_explicit = lp_passdb_expand_explicit();
1516
1517         if(sampass == NULL || buf == NULL) {
1518                 DEBUG(0, ("init_samu_from_buffer_v3: NULL parameters found!\n"));
1519                 return False;
1520         }
1521
1522 /* SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1523
1524         /* unpack the buffer into variables */
1525         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V3,
1526                 &logon_time,                                            /* d */
1527                 &logoff_time,                                           /* d */
1528                 &kickoff_time,                                          /* d */
1529                 &bad_password_time,                                     /* d */
1530                 &pass_last_set_time,                                    /* d */
1531                 &pass_can_change_time,                                  /* d */
1532                 &pass_must_change_time,                                 /* d */
1533                 &username_len, &username,                               /* B */
1534                 &domain_len, &domain,                                   /* B */
1535                 &nt_username_len, &nt_username,                         /* B */
1536                 &fullname_len, &fullname,                               /* B */
1537                 &homedir_len, &homedir,                                 /* B */
1538                 &dir_drive_len, &dir_drive,                             /* B */
1539                 &logon_script_len, &logon_script,                       /* B */
1540                 &profile_path_len, &profile_path,                       /* B */
1541                 &acct_desc_len, &acct_desc,                             /* B */
1542                 &workstations_len, &workstations,                       /* B */
1543                 &unknown_str_len, &unknown_str,                         /* B */
1544                 &munged_dial_len, &munged_dial,                         /* B */
1545                 &user_rid,                                              /* d */
1546                 &group_rid,                                             /* d */
1547                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1548                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1549                 /* Change from V1 is addition of password history field. */
1550                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1551                 /* Change from V2 is the uint32 acb_mask */
1552                 &acct_ctrl,                                             /* d */
1553                 /* Also "remove_me" field was removed. */
1554                 &logon_divs,                                            /* w */
1555                 &hours_len,                                             /* d */
1556                 &hourslen, &hours,                                      /* B */
1557                 &bad_password_count,                                    /* w */
1558                 &logon_count,                                           /* w */
1559                 &unknown_6);                                            /* d */
1560
1561         if (len == (uint32) -1)  {
1562                 ret = False;
1563                 goto done;
1564         }
1565
1566         pdb_set_logon_time(sampass, convert_uint32_to_time_t(logon_time), PDB_SET);
1567         pdb_set_logoff_time(sampass, convert_uint32_to_time_t(logoff_time), PDB_SET);
1568         pdb_set_kickoff_time(sampass, convert_uint32_to_time_t(kickoff_time), PDB_SET);
1569         pdb_set_bad_password_time(sampass, convert_uint32_to_time_t(bad_password_time), PDB_SET);
1570         pdb_set_pass_can_change_time(sampass, convert_uint32_to_time_t(pass_can_change_time), PDB_SET);
1571         pdb_set_pass_must_change_time(sampass, convert_uint32_to_time_t(pass_must_change_time), PDB_SET);
1572         pdb_set_pass_last_set_time(sampass, convert_uint32_to_time_t(pass_last_set_time), PDB_SET);
1573
1574         pdb_set_username(sampass, username, PDB_SET);
1575         pdb_set_domain(sampass, domain, PDB_SET);
1576         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1577         pdb_set_fullname(sampass, fullname, PDB_SET);
1578
1579         if (homedir) {
1580                 fstrcpy( tmp_string, homedir );
1581                 if (expand_explicit) {
1582                         standard_sub_basic( username, domain, tmp_string,
1583                                             sizeof(tmp_string) );
1584                 }
1585                 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1586         }
1587         else {
1588                 pdb_set_homedir(sampass,
1589                         talloc_sub_basic(sampass, username, domain,
1590                                          lp_logon_home()),
1591                         PDB_DEFAULT);
1592         }
1593
1594         if (dir_drive)
1595                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1596         else
1597                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1598
1599         if (logon_script) {
1600                 fstrcpy( tmp_string, logon_script );
1601                 if (expand_explicit) {
1602                         standard_sub_basic( username, domain, tmp_string,
1603                                             sizeof(tmp_string) );
1604                 }
1605                 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1606         }
1607         else {
1608                 pdb_set_logon_script(sampass,
1609                         talloc_sub_basic(sampass, username, domain,
1610                                          lp_logon_script()),
1611                         PDB_DEFAULT);
1612         }
1613
1614         if (profile_path) {
1615                 fstrcpy( tmp_string, profile_path );
1616                 if (expand_explicit) {
1617                         standard_sub_basic( username, domain, tmp_string,
1618                                             sizeof(tmp_string) );
1619                 }
1620                 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1621         }
1622         else {
1623                 pdb_set_profile_path(sampass,
1624                         talloc_sub_basic(sampass, username, domain, lp_logon_path()),
1625                         PDB_DEFAULT);
1626         }
1627
1628         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1629         pdb_set_workstations(sampass, workstations, PDB_SET);
1630         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1631
1632         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1633                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1634                         ret = False;
1635                         goto done;
1636                 }
1637         }
1638
1639         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1640                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1641                         ret = False;
1642                         goto done;
1643                 }
1644         }
1645
1646         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1647         if (pwHistLen) {
1648                 uint8 *pw_hist = (uint8 *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1649                 if (!pw_hist) {
1650                         ret = False;
1651                         goto done;
1652                 }
1653                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1654                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1655                         int i;
1656                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1657                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1658                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1659                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1660                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1661                                         PW_HISTORY_ENTRY_LEN);
1662                         }
1663                 }
1664                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1665                         SAFE_FREE(pw_hist);
1666                         ret = False;
1667                         goto done;
1668                 }
1669                 SAFE_FREE(pw_hist);
1670         } else {
1671                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1672         }
1673
1674         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1675         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1676         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1677         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1678         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1679         /* Change from V2 is the uint32 acct_ctrl */
1680         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1681         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1682         pdb_set_hours(sampass, hours, PDB_SET);
1683
1684 done:
1685
1686         SAFE_FREE(username);
1687         SAFE_FREE(domain);
1688         SAFE_FREE(nt_username);
1689         SAFE_FREE(fullname);
1690         SAFE_FREE(homedir);
1691         SAFE_FREE(dir_drive);
1692         SAFE_FREE(logon_script);
1693         SAFE_FREE(profile_path);
1694         SAFE_FREE(acct_desc);
1695         SAFE_FREE(workstations);
1696         SAFE_FREE(munged_dial);
1697         SAFE_FREE(unknown_str);
1698         SAFE_FREE(lm_pw_ptr);
1699         SAFE_FREE(nt_pw_ptr);
1700         SAFE_FREE(nt_pw_hist_ptr);
1701         SAFE_FREE(hours);
1702
1703         return ret;
1704 }
1705
1706 /*********************************************************************
1707 *********************************************************************/
1708
1709 static uint32 init_buffer_from_samu_v3 (uint8 **buf, struct samu *sampass, bool size_only)
1710 {
1711         size_t len, buflen;
1712
1713         /* times are stored as 32bit integer
1714            take care on system with 64bit wide time_t
1715            --SSS */
1716         uint32  logon_time,
1717                 logoff_time,
1718                 kickoff_time,
1719                 bad_password_time,
1720                 pass_last_set_time,
1721                 pass_can_change_time,
1722                 pass_must_change_time;
1723
1724         uint32  user_rid, group_rid;
1725
1726         const char *username;
1727         const char *domain;
1728         const char *nt_username;
1729         const char *dir_drive;
1730         const char *unknown_str;
1731         const char *munged_dial;
1732         const char *fullname;
1733         const char *homedir;
1734         const char *logon_script;
1735         const char *profile_path;
1736         const char *acct_desc;
1737         const char *workstations;
1738         uint32  username_len, domain_len, nt_username_len,
1739                 dir_drive_len, unknown_str_len, munged_dial_len,
1740                 fullname_len, homedir_len, logon_script_len,
1741                 profile_path_len, acct_desc_len, workstations_len;
1742
1743         const uint8 *lm_pw;
1744         const uint8 *nt_pw;
1745         const uint8 *nt_pw_hist;
1746         uint32  lm_pw_len = 16;
1747         uint32  nt_pw_len = 16;
1748         uint32  nt_pw_hist_len;
1749         uint32 pwHistLen = 0;
1750
1751         *buf = NULL;
1752         buflen = 0;
1753
1754         logon_time = convert_time_t_to_uint32(pdb_get_logon_time(sampass));
1755         logoff_time = convert_time_t_to_uint32(pdb_get_logoff_time(sampass));
1756         kickoff_time = convert_time_t_to_uint32(pdb_get_kickoff_time(sampass));
1757         bad_password_time = convert_time_t_to_uint32(pdb_get_bad_password_time(sampass));
1758         pass_can_change_time = convert_time_t_to_uint32(pdb_get_pass_can_change_time_noncalc(sampass));
1759         pass_must_change_time = convert_time_t_to_uint32(pdb_get_pass_must_change_time(sampass));
1760         pass_last_set_time = convert_time_t_to_uint32(pdb_get_pass_last_set_time(sampass));
1761
1762         user_rid = pdb_get_user_rid(sampass);
1763         group_rid = pdb_get_group_rid(sampass);
1764
1765         username = pdb_get_username(sampass);
1766         if (username) {
1767                 username_len = strlen(username) +1;
1768         } else {
1769                 username_len = 0;
1770         }
1771
1772         domain = pdb_get_domain(sampass);
1773         if (domain) {
1774                 domain_len = strlen(domain) +1;
1775         } else {
1776                 domain_len = 0;
1777         }
1778
1779         nt_username = pdb_get_nt_username(sampass);
1780         if (nt_username) {
1781                 nt_username_len = strlen(nt_username) +1;
1782         } else {
1783                 nt_username_len = 0;
1784         }
1785
1786         fullname = pdb_get_fullname(sampass);
1787         if (fullname) {
1788                 fullname_len = strlen(fullname) +1;
1789         } else {
1790                 fullname_len = 0;
1791         }
1792
1793         /*
1794          * Only updates fields which have been set (not defaults from smb.conf)
1795          */
1796
1797         if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1798                 dir_drive = pdb_get_dir_drive(sampass);
1799         } else {
1800                 dir_drive = NULL;
1801         }
1802         if (dir_drive) {
1803                 dir_drive_len = strlen(dir_drive) +1;
1804         } else {
1805                 dir_drive_len = 0;
1806         }
1807
1808         if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1809                 homedir = pdb_get_homedir(sampass);
1810         } else {
1811                 homedir = NULL;
1812         }
1813         if (homedir) {
1814                 homedir_len = strlen(homedir) +1;
1815         } else {
1816                 homedir_len = 0;
1817         }
1818
1819         if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1820                 logon_script = pdb_get_logon_script(sampass);
1821         } else {
1822                 logon_script = NULL;
1823         }
1824         if (logon_script) {
1825                 logon_script_len = strlen(logon_script) +1;
1826         } else {
1827                 logon_script_len = 0;
1828         }
1829
1830         if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1831                 profile_path = pdb_get_profile_path(sampass);
1832         } else {
1833                 profile_path = NULL;
1834         }
1835         if (profile_path) {
1836                 profile_path_len = strlen(profile_path) +1;
1837         } else {
1838                 profile_path_len = 0;
1839         }
1840
1841         lm_pw = pdb_get_lanman_passwd(sampass);
1842         if (!lm_pw) {
1843                 lm_pw_len = 0;
1844         }
1845
1846         nt_pw = pdb_get_nt_passwd(sampass);
1847         if (!nt_pw) {
1848                 nt_pw_len = 0;
1849         }
1850
1851         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1852         nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
1853         if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1854                 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1855         } else {
1856                 nt_pw_hist_len = 0;
1857         }
1858
1859         acct_desc = pdb_get_acct_desc(sampass);
1860         if (acct_desc) {
1861                 acct_desc_len = strlen(acct_desc) +1;
1862         } else {
1863                 acct_desc_len = 0;
1864         }
1865
1866         workstations = pdb_get_workstations(sampass);
1867         if (workstations) {
1868                 workstations_len = strlen(workstations) +1;
1869         } else {
1870                 workstations_len = 0;
1871         }
1872
1873         unknown_str = NULL;
1874         unknown_str_len = 0;
1875
1876         munged_dial = pdb_get_munged_dial(sampass);
1877         if (munged_dial) {
1878                 munged_dial_len = strlen(munged_dial) +1;
1879         } else {
1880                 munged_dial_len = 0;
1881         }
1882
1883 /* SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1884
1885         /* one time to get the size needed */
1886         len = tdb_pack(NULL, 0,  SAMU_BUFFER_FORMAT_V3,
1887                 logon_time,                             /* d */
1888                 logoff_time,                            /* d */
1889                 kickoff_time,                           /* d */
1890                 bad_password_time,                      /* d */
1891                 pass_last_set_time,                     /* d */
1892                 pass_can_change_time,                   /* d */
1893                 pass_must_change_time,                  /* d */
1894                 username_len, username,                 /* B */
1895                 domain_len, domain,                     /* B */
1896                 nt_username_len, nt_username,           /* B */
1897                 fullname_len, fullname,                 /* B */
1898                 homedir_len, homedir,                   /* B */
1899                 dir_drive_len, dir_drive,               /* B */
1900                 logon_script_len, logon_script,         /* B */
1901                 profile_path_len, profile_path,         /* B */
1902                 acct_desc_len, acct_desc,               /* B */
1903                 workstations_len, workstations,         /* B */
1904                 unknown_str_len, unknown_str,           /* B */
1905                 munged_dial_len, munged_dial,           /* B */
1906                 user_rid,                               /* d */
1907                 group_rid,                              /* d */
1908                 lm_pw_len, lm_pw,                       /* B */
1909                 nt_pw_len, nt_pw,                       /* B */
1910                 nt_pw_hist_len, nt_pw_hist,             /* B */
1911                 pdb_get_acct_ctrl(sampass),             /* d */
1912                 pdb_get_logon_divs(sampass),            /* w */
1913                 pdb_get_hours_len(sampass),             /* d */
1914                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1915                 pdb_get_bad_password_count(sampass),    /* w */
1916                 pdb_get_logon_count(sampass),           /* w */
1917                 pdb_get_unknown_6(sampass));            /* d */
1918
1919         if (size_only) {
1920                 return buflen;
1921         }
1922
1923         /* malloc the space needed */
1924         if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
1925                 DEBUG(0,("init_buffer_from_samu_v3: Unable to malloc() memory for buffer!\n"));
1926                 return (-1);
1927         }
1928
1929         /* now for the real call to tdb_pack() */
1930         buflen = tdb_pack(*buf, len,  SAMU_BUFFER_FORMAT_V3,
1931                 logon_time,                             /* d */
1932                 logoff_time,                            /* d */
1933                 kickoff_time,                           /* d */
1934                 bad_password_time,                      /* d */
1935                 pass_last_set_time,                     /* d */
1936                 pass_can_change_time,                   /* d */
1937                 pass_must_change_time,                  /* d */
1938                 username_len, username,                 /* B */
1939                 domain_len, domain,                     /* B */
1940                 nt_username_len, nt_username,           /* B */
1941                 fullname_len, fullname,                 /* B */
1942                 homedir_len, homedir,                   /* B */
1943                 dir_drive_len, dir_drive,               /* B */
1944                 logon_script_len, logon_script,         /* B */
1945                 profile_path_len, profile_path,         /* B */
1946                 acct_desc_len, acct_desc,               /* B */
1947                 workstations_len, workstations,         /* B */
1948                 unknown_str_len, unknown_str,           /* B */
1949                 munged_dial_len, munged_dial,           /* B */
1950                 user_rid,                               /* d */
1951                 group_rid,                              /* d */
1952                 lm_pw_len, lm_pw,                       /* B */
1953                 nt_pw_len, nt_pw,                       /* B */
1954                 nt_pw_hist_len, nt_pw_hist,             /* B */
1955                 pdb_get_acct_ctrl(sampass),             /* d */
1956                 pdb_get_logon_divs(sampass),            /* w */
1957                 pdb_get_hours_len(sampass),             /* d */
1958                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1959                 pdb_get_bad_password_count(sampass),    /* w */
1960                 pdb_get_logon_count(sampass),           /* w */
1961                 pdb_get_unknown_6(sampass));            /* d */
1962
1963         /* check to make sure we got it correct */
1964         if (buflen != len) {
1965                 DEBUG(0, ("init_buffer_from_samu_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
1966                           (unsigned long)buflen, (unsigned long)len));
1967                 /* error */
1968                 SAFE_FREE (*buf);
1969                 return (-1);
1970         }
1971
1972         return (buflen);
1973 }
1974
1975 static bool init_samu_from_buffer_v4(struct samu *sampass, uint8 *buf, uint32 buflen)
1976 {
1977         /* nothing changed between V3 and V4 */
1978         return init_samu_from_buffer_v3(sampass, buf, buflen);
1979 }
1980
1981 static uint32 init_buffer_from_samu_v4(uint8 **buf, struct samu *sampass, bool size_only)
1982 {
1983         /* nothing changed between V3 and V4 */
1984         return init_buffer_from_samu_v3(buf, sampass, size_only);
1985 }
1986
1987 /**********************************************************************
1988  Intialize a struct samu struct from a BYTE buffer of size len
1989  *********************************************************************/
1990
1991 bool init_samu_from_buffer(struct samu *sampass, uint32_t level,
1992                            uint8 *buf, uint32 buflen)
1993 {
1994         switch (level) {
1995         case SAMU_BUFFER_V0:
1996                 return init_samu_from_buffer_v0(sampass, buf, buflen);
1997         case SAMU_BUFFER_V1:
1998                 return init_samu_from_buffer_v1(sampass, buf, buflen);
1999         case SAMU_BUFFER_V2:
2000                 return init_samu_from_buffer_v2(sampass, buf, buflen);
2001         case SAMU_BUFFER_V3:
2002                 return init_samu_from_buffer_v3(sampass, buf, buflen);
2003         case SAMU_BUFFER_V4:
2004                 return init_samu_from_buffer_v4(sampass, buf, buflen);
2005         }
2006
2007         return false;
2008 }
2009
2010 /**********************************************************************
2011  Intialize a BYTE buffer from a struct samu struct
2012  *********************************************************************/
2013
2014 uint32 init_buffer_from_samu (uint8 **buf, struct samu *sampass, bool size_only)
2015 {
2016         return init_buffer_from_samu_v4(buf, sampass, size_only);
2017 }
2018
2019 /*********************************************************************
2020 *********************************************************************/
2021
2022 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
2023 {
2024         uint8 *buf = NULL;
2025         int len;
2026
2027         len = init_buffer_from_samu(&buf, src, False);
2028         if (len == -1 || !buf) {
2029                 SAFE_FREE(buf);
2030                 return False;
2031         }
2032
2033         if (!init_samu_from_buffer( dst, SAMU_BUFFER_LATEST, buf, len )) {
2034                 free(buf);
2035                 return False;
2036         }
2037
2038         dst->methods = src->methods;
2039
2040         if ( src->unix_pw ) {
2041                 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
2042                 if (!dst->unix_pw) {
2043                         free(buf);
2044                         return False;
2045                 }
2046         }
2047
2048         free(buf);
2049         return True;
2050 }
2051
2052 /*********************************************************************
2053  Update the bad password count checking the AP_RESET_COUNT_TIME
2054 *********************************************************************/
2055
2056 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
2057 {
2058         time_t LastBadPassword;
2059         uint16 BadPasswordCount;
2060         uint32 resettime;
2061         bool res;
2062
2063         BadPasswordCount = pdb_get_bad_password_count(sampass);
2064         if (!BadPasswordCount) {
2065                 DEBUG(9, ("No bad password attempts.\n"));
2066                 return True;
2067         }
2068
2069         become_root();
2070         res = pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime);
2071         unbecome_root();
2072
2073         if (!res) {
2074                 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2075                 return False;
2076         }
2077
2078         /* First, check if there is a reset time to compare */
2079         if ((resettime == (uint32) -1) || (resettime == 0)) {
2080                 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2081                 return True;
2082         }
2083
2084         LastBadPassword = pdb_get_bad_password_time(sampass);
2085         DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2086                    (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2087         if (time(NULL) > (LastBadPassword + convert_uint32_to_time_t(resettime)*60)){
2088                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2089                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2090                 if (updated) {
2091                         *updated = True;
2092                 }
2093         }
2094
2095         return True;
2096 }
2097
2098 /*********************************************************************
2099  Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2100 *********************************************************************/
2101
2102 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
2103 {
2104         uint32 duration;
2105         time_t LastBadPassword;
2106         bool res;
2107
2108         if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2109                 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2110                         pdb_get_username(sampass)));
2111                 return True;
2112         }
2113
2114         become_root();
2115         res = pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration);
2116         unbecome_root();
2117
2118         if (!res) {
2119                 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2120                 return False;
2121         }
2122
2123         /* First, check if there is a duration to compare */
2124         if ((duration == (uint32) -1)  || (duration == 0)) {
2125                 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2126                 return True;
2127         }
2128
2129         LastBadPassword = pdb_get_bad_password_time(sampass);
2130         DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2131                   pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2132
2133         if (LastBadPassword == (time_t)0) {
2134                 DEBUG(1,("pdb_update_autolock_flag: Account %s "
2135                          "administratively locked out with no bad password "
2136                          "time. Leaving locked out.\n",
2137                          pdb_get_username(sampass) ));
2138                 return True;
2139         }
2140
2141         if ((time(NULL) > (LastBadPassword + convert_uint32_to_time_t(duration) * 60))) {
2142                 pdb_set_acct_ctrl(sampass,
2143                                   pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2144                                   PDB_CHANGED);
2145                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2146                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2147                 if (updated) {
2148                         *updated = True;
2149                 }
2150         }
2151
2152         return True;
2153 }
2154
2155 /*********************************************************************
2156  Increment the bad_password_count
2157 *********************************************************************/
2158
2159 bool pdb_increment_bad_password_count(struct samu *sampass)
2160 {
2161         uint32 account_policy_lockout;
2162         bool autolock_updated = False, badpw_updated = False;
2163         bool ret;
2164
2165         /* Retrieve the account lockout policy */
2166         become_root();
2167         ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2168         unbecome_root();
2169         if ( !ret ) {
2170                 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2171                 return False;
2172         }
2173
2174         /* If there is no policy, we don't need to continue checking */
2175         if (!account_policy_lockout) {
2176                 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2177                 return True;
2178         }
2179
2180         /* Check if the autolock needs to be cleared */
2181         if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2182                 return False;
2183
2184         /* Check if the badpw count needs to be reset */
2185         if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2186                 return False;
2187
2188         /*
2189           Ok, now we can assume that any resetting that needs to be
2190           done has been done, and just get on with incrementing
2191           and autolocking if necessary
2192         */
2193
2194         pdb_set_bad_password_count(sampass,
2195                                    pdb_get_bad_password_count(sampass)+1,
2196                                    PDB_CHANGED);
2197         pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2198
2199
2200         if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2201                 return True;
2202
2203         if (!pdb_set_acct_ctrl(sampass,
2204                                pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2205                                PDB_CHANGED)) {
2206                 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2207                 return False;
2208         }
2209
2210         return True;
2211 }
2212
2213 bool is_dc_trusted_domain_situation(const char *domain_name)
2214 {
2215         return IS_DC && !strequal(domain_name, lp_workgroup());
2216 }
2217
2218 /*******************************************************************
2219  Wrapper around retrieving the clear text trust account password.
2220  appropriate account name is stored in account_name.
2221  Caller must free password, but not account_name.
2222 *******************************************************************/
2223
2224 bool get_trust_pw_clear(const char *domain, char **ret_pwd,
2225                         const char **account_name, uint32 *channel)
2226 {
2227         char *pwd;
2228         time_t last_set_time;
2229
2230         /* if we are a DC and this is not our domain, then lookup an account
2231          * for the domain trust */
2232
2233         if (is_dc_trusted_domain_situation(domain)) {
2234                 if (!lp_allow_trusted_domains()) {
2235                         return false;
2236                 }
2237
2238                 if (!pdb_get_trusteddom_pw(domain, ret_pwd, NULL,
2239                                            &last_set_time))
2240                 {
2241                         DEBUG(0, ("get_trust_pw: could not fetch trust "
2242                                 "account password for trusted domain %s\n",
2243                                 domain));
2244                         return false;
2245                 }
2246
2247                 if (channel != NULL) {
2248                         *channel = SEC_CHAN_DOMAIN;
2249                 }
2250
2251                 if (account_name != NULL) {
2252                         *account_name = lp_workgroup();
2253                 }
2254
2255                 return true;
2256         }
2257
2258         /*
2259          * Since we can only be member of one single domain, we are now
2260          * in a member situation:
2261          *
2262          *  -  Either we are a DC (selfjoined) and the domain is our
2263          *     own domain.
2264          *  -  Or we are on a member and the domain is our own or some
2265          *     other (potentially trusted) domain.
2266          *
2267          * In both cases, we can only get the machine account password
2268          * for our own domain to connect to our own dc. (For a member,
2269          * request to trusted domains are performed through our dc.)
2270          *
2271          * So we simply use our own domain name to retrieve the
2272          * machine account passowrd and ignore the request domain here.
2273          */
2274
2275         pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
2276
2277         if (pwd != NULL) {
2278                 *ret_pwd = pwd;
2279                 if (account_name != NULL) {
2280                         *account_name = global_myname();
2281                 }
2282
2283                 return true;
2284         }
2285
2286         DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
2287                   "account password for domain %s\n", domain));
2288         return false;
2289 }
2290
2291 /*******************************************************************
2292  Wrapper around retrieving the trust account password.
2293  appropriate account name is stored in account_name.
2294 *******************************************************************/
2295
2296 bool get_trust_pw_hash(const char *domain, uint8 ret_pwd[16],
2297                        const char **account_name, uint32 *channel)
2298 {
2299         char *pwd = NULL;
2300         time_t last_set_time;
2301
2302         if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
2303                 E_md4hash(pwd, ret_pwd);
2304                 SAFE_FREE(pwd);
2305                 return true;
2306         } else if (is_dc_trusted_domain_situation(domain)) {
2307                 return false;
2308         }
2309
2310         /* as a fallback, try to get the hashed pwd directly from the tdb... */
2311
2312         if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
2313                                                         &last_set_time,
2314                                                         channel))
2315         {
2316                 if (account_name != NULL) {
2317                         *account_name = global_myname();
2318                 }
2319
2320                 return true;
2321         }
2322
2323         DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
2324                 "password for domain %s\n", domain));
2325         return False;
2326 }
2327
2328 struct samr_LogonHours get_logon_hours_from_pdb(TALLOC_CTX *mem_ctx,
2329                                                 struct samu *pw)
2330 {
2331         struct samr_LogonHours hours;
2332         const int units_per_week = 168;
2333
2334         ZERO_STRUCT(hours);
2335         hours.bits = talloc_array(mem_ctx, uint8_t, units_per_week);
2336         if (!hours.bits) {
2337                 return hours;
2338         }
2339
2340         hours.units_per_week = units_per_week;
2341         memset(hours.bits, 0xFF, units_per_week);
2342
2343         if (pdb_get_hours(pw)) {
2344                 memcpy(hours.bits, pdb_get_hours(pw),
2345                        MIN(pdb_get_hours_len(pw), units_per_week));
2346         }
2347
2348         return hours;
2349 }
2350