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 2 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, write to the Free Software
  23    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 */
  25
  26 #include "includes.h"
  27
  28 #undef DBGC_CLASS
  29 #define DBGC_CLASS DBGC_PASSDB
  30
  31 /******************************************************************
  32  get the default domain/netbios name to be used when
  33  testing authentication.  For example, if you connect
  34  to a Windows member server using a bogus domain name, the
  35  Windows box will map the BOGUS\user to DOMAIN\user.  A
  36  standalone box will map to WKS\user.
  37 ******************************************************************/
  38
  39 const char *my_sam_name(void)
  40 {
  41         /* standalone servers can only use the local netbios name */
  42         if ( lp_server_role() == ROLE_STANDALONE )
  43                 return global_myname();
  44
  45         /* Windows domain members default to the DOMAIN
  46            name when not specified */
  47         return lp_workgroup();
  48 }
  49
  50 /**********************************************************************
  51 ***********************************************************************/
  52
  53 static int samu_destroy(void *p)
  54 {
  55         struct samu *user = p;
  56
  57         data_blob_clear_free( &user->lm_pw );
  58         data_blob_clear_free( &user->nt_pw );
  59
  60         if ( user->plaintext_pw )
  61                 memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
  62
  63         return 0;
  64 }
  65
  66 /**********************************************************************
  67  generate a new struct samuser
  68 ***********************************************************************/
  69
  70 struct samu *samu_new( TALLOC_CTX *ctx )
  71 {
  72         struct samu *user;
  73
  74         if ( !(user = TALLOC_ZERO_P( ctx, struct samu )) ) {
  75                 DEBUG(0,("samuser_new: Talloc failed!\n"));
  76                 return NULL;
  77         }
  78
  79         talloc_set_destructor( user, samu_destroy );
  80
  81         /* no initial methods */
  82
  83         user->methods = NULL;
  84
  85         /* Don't change these timestamp settings without a good reason.
  86            They are important for NT member server compatibility. */
  87
  88         user->logon_time            = (time_t)0;
  89         user->pass_last_set_time    = (time_t)0;
  90         user->pass_can_change_time  = (time_t)0;
  91         user->logoff_time           = get_time_t_max();
  92         user->kickoff_time          = get_time_t_max();
  93         user->pass_must_change_time = get_time_t_max();
  94         user->fields_present        = 0x00ffffff;
  95         user->logon_divs = 168;         /* hours per week */
  96         user->hours_len = 21;           /* 21 times 8 bits = 168 */
  97         memset(user->hours, 0xff, user->hours_len); /* available at all hours */
  98         user->bad_password_count = 0;
  99         user->logon_count = 0;
 100         user->unknown_6 = 0x000004ec; /* don't know */
 101
 102         /* Some parts of samba strlen their pdb_get...() returns,
 103            so this keeps the interface unchanged for now. */
 104
 105         user->username = "";
 106         user->domain = "";
 107         user->nt_username = "";
 108         user->full_name = "";
 109         user->home_dir = "";
 110         user->logon_script = "";
 111         user->profile_path = "";
 112         user->acct_desc = "";
 113         user->workstations = "";
 114         user->unknown_str = "";
 115         user->munged_dial = "";
 116
 117         user->plaintext_pw = NULL;
 118
 119         /* Unless we know otherwise have a Account Control Bit
 120            value of 'normal user'.  This helps User Manager, which
 121            asks for a filtered list of users. */
 122
 123         user->acct_ctrl = ACB_NORMAL;
 124
 125
 126         return user;
 127 }
 128
 129 /*********************************************************************
 130  Initialize a struct samu from a struct passwd including the user
 131  and group SIDs.  The *user structure is filled out with the Unix
 132  attributes and a user SID.
 133 *********************************************************************/
 134
 135 static NTSTATUS samu_set_unix_internal(struct samu *user, const struct passwd *pwd, BOOL create)
 136 {
 137         const char *guest_account = lp_guestaccount();
 138         const char *domain = global_myname();
 139         DOM_SID group_sid;
 140         uint32 urid;
 141
 142         if ( !pwd ) {
 143                 return NT_STATUS_NO_SUCH_USER;
 144         }
 145
 146         /* Basic properties based upon the Unix account information */
 147
 148         pdb_set_username(user, pwd->pw_name, PDB_SET);
 149         pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
 150         pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
 151         gid_to_sid(&group_sid, pwd->pw_gid);
 152         pdb_set_group_sid(user, &group_sid, PDB_SET);
 153
 154         /* save the password structure for later use */
 155
 156         user->unix_pw = tcopy_passwd( user, pwd );
 157
 158         /* Special case for the guest account which must have a RID of 501 */
 159
 160         if ( strequal( pwd->pw_name, guest_account ) ) {
 161                 if ( !pdb_set_user_sid_from_rid(user, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
 162                         return NT_STATUS_NO_SUCH_USER;
 163                 }
 164                 return NT_STATUS_OK;
 165         }
 166
 167         /* Non-guest accounts...Check for a workstation or user account */
 168
 169         if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
 170                 /* workstation */
 171
 172                 if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
 173                         DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n",
 174                                 pwd->pw_name));
 175                         return NT_STATUS_INVALID_COMPUTER_NAME;
 176                 }
 177         }
 178         else {
 179                 /* user */
 180
 181                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
 182                         DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n",
 183                                 pwd->pw_name));
 184                         return NT_STATUS_INVALID_ACCOUNT_NAME;
 185                 }
 186
 187                 /* set some basic attributes */
 188
 189                 pdb_set_profile_path(user, talloc_sub_specified(user,
 190                         lp_logon_path(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 191                         PDB_DEFAULT);
 192                 pdb_set_homedir(user, talloc_sub_specified(user,
 193                         lp_logon_home(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 194                         PDB_DEFAULT);
 195                 pdb_set_dir_drive(user, talloc_sub_specified(user,
 196                         lp_logon_drive(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 197                         PDB_DEFAULT);
 198                 pdb_set_logon_script(user, talloc_sub_specified(user,
 199                         lp_logon_script(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 200                         PDB_DEFAULT);
 201         }
 202
 203         /* Now deal with the user SID.  If we have a backend that can generate
 204            RIDs, then do so.  But sometimes the caller just wanted a structure
 205            initialized and will fill in these fields later (such as from a
 206            NET_USER_INFO_3 structure) */
 207
 208         if ( create && !pdb_rid_algorithm() ) {
 209                 uint32 user_rid;
 210                 DOM_SID user_sid;
 211
 212                 if ( !pdb_new_rid( &user_rid ) ) {
 213                         DEBUG(3, ("Could not allocate a new RID\n"));
 214                         return NT_STATUS_ACCESS_DENIED;
 215                 }
 216
 217                 sid_copy( &user_sid, get_global_sam_sid() );
 218                 sid_append_rid( &user_sid, user_rid );
 219
 220                 if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
 221                         DEBUG(3, ("pdb_set_user_sid failed\n"));
 222                         return NT_STATUS_INTERNAL_ERROR;
 223                 }
 224
 225                 return NT_STATUS_OK;
 226         }
 227
 228         /* generate a SID for the user with the RID algorithm */
 229
 230         urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
 231
 232         if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
 233                 return NT_STATUS_INTERNAL_ERROR;
 234         }
 235
 236         return NT_STATUS_OK;
 237 }
 238
 239 /********************************************************************
 240  Set the Unix user attributes
 241 ********************************************************************/
 242
 243 NTSTATUS samu_set_unix(struct samu *user, const struct passwd *pwd)
 244 {
 245         return samu_set_unix_internal( user, pwd, False );
 246 }
 247
 248 NTSTATUS samu_alloc_rid_unix(struct samu *user, const struct passwd *pwd)
 249 {
 250         return samu_set_unix_internal( user, pwd, True );
 251 }
 252
 253 /**********************************************************
 254  Encode the account control bits into a string.
 255  length = length of string to encode into (including terminating
 256  null). length *MUST BE MORE THAN 2* !
 257  **********************************************************/
 258
 259 char *pdb_encode_acct_ctrl(uint32 acct_ctrl, size_t length)
 260 {
 261         static fstring acct_str;
 262
 263         size_t i = 0;
 264
 265         SMB_ASSERT(length <= sizeof(acct_str));
 266
 267         acct_str[i++] = '[';
 268
 269         if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
 270         if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
 271         if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
 272         if (acct_ctrl & ACB_TEMPDUP  ) acct_str[i++] = 'T';
 273         if (acct_ctrl & ACB_NORMAL   ) acct_str[i++] = 'U';
 274         if (acct_ctrl & ACB_MNS      ) acct_str[i++] = 'M';
 275         if (acct_ctrl & ACB_WSTRUST  ) acct_str[i++] = 'W';
 276         if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
 277         if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
 278         if (acct_ctrl & ACB_PWNOEXP  ) acct_str[i++] = 'X';
 279         if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
 280
 281         for ( ; i < length - 2 ; i++ )
 282                 acct_str[i] = ' ';
 283
 284         i = length - 2;
 285         acct_str[i++] = ']';
 286         acct_str[i++] = '\0';
 287
 288         return acct_str;
 289 }
 290
 291 /**********************************************************
 292  Decode the account control bits from a string.
 293  **********************************************************/
 294
 295 uint32 pdb_decode_acct_ctrl(const char *p)
 296 {
 297         uint32 acct_ctrl = 0;
 298         BOOL finished = False;
 299
 300         /*
 301          * Check if the account type bits have been encoded after the
 302          * NT password (in the form [NDHTUWSLXI]).
 303          */
 304
 305         if (*p != '[')
 306                 return 0;
 307
 308         for (p++; *p && !finished; p++) {
 309                 switch (*p) {
 310                         case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
 311                         case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
 312                         case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
 313                         case 'T': { acct_ctrl |= ACB_TEMPDUP  ; break; /* 'T'emp account. */ }
 314                         case 'U': { acct_ctrl |= ACB_NORMAL   ; break; /* 'U'ser account (normal). */ }
 315                         case 'M': { acct_ctrl |= ACB_MNS      ; break; /* 'M'NS logon user account. What is this ? */ }
 316                         case 'W': { acct_ctrl |= ACB_WSTRUST  ; break; /* 'W'orkstation account. */ }
 317                         case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
 318                         case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
 319                         case 'X': { acct_ctrl |= ACB_PWNOEXP  ; break; /* No 'X'piry on password */ }
 320                         case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
 321             case ' ': { break; }
 322                         case ':':
 323                         case '\n':
 324                         case '\0':
 325                         case ']':
 326                         default:  { finished = True; }
 327                 }
 328         }
 329
 330         return acct_ctrl;
 331 }
 332
 333 /*************************************************************
 334  Routine to set 32 hex password characters from a 16 byte array.
 335 **************************************************************/
 336
 337 void pdb_sethexpwd(char *p, const unsigned char *pwd, uint32 acct_ctrl)
 338 {
 339         if (pwd != NULL) {
 340                 int i;
 341                 for (i = 0; i < 16; i++)
 342                         slprintf(&p[i*2], 3, "%02X", pwd[i]);
 343         } else {
 344                 if (acct_ctrl & ACB_PWNOTREQ)
 345                         safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
 346                 else
 347                         safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
 348         }
 349 }
 350
 351 /*************************************************************
 352  Routine to get the 32 hex characters and turn them
 353  into a 16 byte array.
 354 **************************************************************/
 355
 356 BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
 357 {
 358         int i;
 359         unsigned char   lonybble, hinybble;
 360         const char      *hexchars = "0123456789ABCDEF";
 361         char           *p1, *p2;
 362
 363         if (!p)
 364                 return (False);
 365
 366         for (i = 0; i < 32; i += 2) {
 367                 hinybble = toupper_ascii(p[i]);
 368                 lonybble = toupper_ascii(p[i + 1]);
 369
 370                 p1 = strchr(hexchars, hinybble);
 371                 p2 = strchr(hexchars, lonybble);
 372
 373                 if (!p1 || !p2)
 374                         return (False);
 375
 376                 hinybble = PTR_DIFF(p1, hexchars);
 377                 lonybble = PTR_DIFF(p2, hexchars);
 378
 379                 pwd[i / 2] = (hinybble << 4) | lonybble;
 380         }
 381         return (True);
 382 }
 383
 384 /*************************************************************
 385  Routine to set 42 hex hours characters from a 21 byte array.
 386 **************************************************************/
 387
 388 void pdb_sethexhours(char *p, const unsigned char *hours)
 389 {
 390         if (hours != NULL) {
 391                 int i;
 392                 for (i = 0; i < 21; i++) {
 393                         slprintf(&p[i*2], 3, "%02X", hours[i]);
 394                 }
 395         } else {
 396                 safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
 397         }
 398 }
 399
 400 /*************************************************************
 401  Routine to get the 42 hex characters and turn them
 402  into a 21 byte array.
 403 **************************************************************/
 404
 405 BOOL pdb_gethexhours(const char *p, unsigned char *hours)
 406 {
 407         int i;
 408         unsigned char   lonybble, hinybble;
 409         const char      *hexchars = "0123456789ABCDEF";
 410         char           *p1, *p2;
 411
 412         if (!p) {
 413                 return (False);
 414         }
 415
 416         for (i = 0; i < 42; i += 2) {
 417                 hinybble = toupper_ascii(p[i]);
 418                 lonybble = toupper_ascii(p[i + 1]);
 419
 420                 p1 = strchr(hexchars, hinybble);
 421                 p2 = strchr(hexchars, lonybble);
 422
 423                 if (!p1 || !p2) {
 424                         return (False);
 425                 }
 426
 427                 hinybble = PTR_DIFF(p1, hexchars);
 428                 lonybble = PTR_DIFF(p2, hexchars);
 429
 430                 hours[i / 2] = (hinybble << 4) | lonybble;
 431         }
 432         return (True);
 433 }
 434
 435 /********************************************************************
 436 ********************************************************************/
 437
 438 int algorithmic_rid_base(void)
 439 {
 440         static int rid_offset = 0;
 441
 442         if (rid_offset != 0)
 443                 return rid_offset;
 444
 445         rid_offset = lp_algorithmic_rid_base();
 446
 447         if (rid_offset < BASE_RID) {
 448                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 449                    rids below 1000, that's the 'well known RIDs' on NT */
 450                 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
 451                 rid_offset = BASE_RID;
 452         }
 453         if (rid_offset & 1) {
 454                 DEBUG(0, ("algorithmic rid base must be even\n"));
 455                 rid_offset += 1;
 456         }
 457         return rid_offset;
 458 }
 459
 460 /*******************************************************************
 461  Converts NT user RID to a UNIX uid.
 462  ********************************************************************/
 463
 464 uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
 465 {
 466         int rid_offset = algorithmic_rid_base();
 467         return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
 468 }
 469
 470 uid_t max_algorithmic_uid(void)
 471 {
 472         return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
 473 }
 474
 475 /*******************************************************************
 476  converts UNIX uid to an NT User RID.
 477  ********************************************************************/
 478
 479 uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
 480 {
 481         int rid_offset = algorithmic_rid_base();
 482         return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
 483 }
 484
 485 /*******************************************************************
 486  Converts NT group RID to a UNIX gid.
 487  ********************************************************************/
 488
 489 gid_t pdb_group_rid_to_gid(uint32 group_rid)
 490 {
 491         int rid_offset = algorithmic_rid_base();
 492         return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
 493 }
 494
 495 gid_t max_algorithmic_gid(void)
 496 {
 497         return pdb_group_rid_to_gid(0xffffffff);
 498 }
 499
 500 /*******************************************************************
 501  converts NT Group RID to a UNIX uid.
 502
 503  warning: you must not call that function only
 504  you must do a call to the group mapping first.
 505  there is not anymore a direct link between the gid and the rid.
 506  ********************************************************************/
 507
 508 uint32 pdb_gid_to_group_rid(gid_t gid)
 509 {
 510         int rid_offset = algorithmic_rid_base();
 511         return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
 512 }
 513
 514 /*******************************************************************
 515  Decides if a RID is a well known RID.
 516  ********************************************************************/
 517
 518 static BOOL rid_is_well_known(uint32 rid)
 519 {
 520         /* Not using rid_offset here, because this is the actual
 521            NT fixed value (1000) */
 522
 523         return (rid < BASE_RID);
 524 }
 525
 526 /*******************************************************************
 527  Decides if a RID is a user or group RID.
 528  ********************************************************************/
 529
 530 BOOL algorithmic_pdb_rid_is_user(uint32 rid)
 531 {
 532         if ( rid_is_well_known(rid) ) {
 533                 /*
 534                  * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
 535                  * and DOMAIN_USER_RID_GUEST.
 536                  */
 537                 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
 538                         return True;
 539         } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
 540                 return True;
 541         }
 542         return False;
 543 }
 544
 545 /*******************************************************************
 546  Convert a name into a SID. Used in the lookup name rpc.
 547  ********************************************************************/
 548
 549 BOOL lookup_global_sam_name(const char *user, int flags, uint32_t *rid,
 550                             enum SID_NAME_USE *type)
 551 {
 552         GROUP_MAP map;
 553         BOOL ret;
 554
 555         /* Windows treats "MACHINE\None" as a special name for
 556            rid 513 on non-DCs.  You cannot create a user or group
 557            name "None" on Windows.  You will get an error that
 558            the group already exists. */
 559
 560         if ( strequal( user, "None" ) ) {
 561                 *rid = DOMAIN_GROUP_RID_USERS;
 562                 *type = SID_NAME_DOM_GRP;
 563
 564                 return True;
 565         }
 566
 567         /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
 568          * correctly in the case where foo also exists as a user. If the flag
 569          * is set, don't look for users at all. */
 570
 571         if ((flags & LOOKUP_NAME_GROUP) == 0) {
 572                 struct samu *sam_account = NULL;
 573                 DOM_SID user_sid;
 574
 575                 if ( !(sam_account = samu_new( NULL )) ) {
 576                         return False;
 577                 }
 578
 579                 become_root();
 580                 ret =  pdb_getsampwnam(sam_account, user);
 581                 unbecome_root();
 582
 583                 if (ret) {
 584                         sid_copy(&user_sid, pdb_get_user_sid(sam_account));
 585                 }
 586
 587                 TALLOC_FREE(sam_account);
 588
 589                 if (ret) {
 590                         if (!sid_check_is_in_our_domain(&user_sid)) {
 591                                 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
 592                                           user, sid_string_static(&user_sid)));
 593                                 return False;
 594                         }
 595
 596                         sid_peek_rid(&user_sid, rid);
 597                         *type = SID_NAME_USER;
 598                         return True;
 599                 }
 600         }
 601
 602         /*
 603          * Maybe it is a group ?
 604          */
 605
 606         become_root();
 607         ret = pdb_getgrnam(&map, user);
 608         unbecome_root();
 609
 610         if (!ret) {
 611                 return False;
 612         }
 613
 614         /* BUILTIN groups are looked up elsewhere */
 615         if (!sid_check_is_in_our_domain(&map.sid)) {
 616                 DEBUG(10, ("Found group %s (%s) not in our domain -- "
 617                            "ignoring.", user,
 618                            sid_string_static(&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, int local_flags,
 633                            const char *new_passwd,
 634                            char *err_str, size_t err_str_len,
 635                            char *msg_str, size_t msg_str_len)
 636 {
 637         struct samu *sam_pass=NULL;
 638         uint32 other_acb;
 639         NTSTATUS result;
 640
 641         *err_str = '\0';
 642         *msg_str = '\0';
 643
 644         /* Get the smb passwd entry for this user */
 645
 646         if ( !(sam_pass = samu_new( NULL )) ) {
 647                 return NT_STATUS_NO_MEMORY;
 648         }
 649
 650         become_root();
 651         if(!pdb_getsampwnam(sam_pass, user_name)) {
 652                 unbecome_root();
 653                 TALLOC_FREE(sam_pass);
 654
 655                 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
 656                         int tmp_debug = DEBUGLEVEL;
 657                         struct passwd *pwd;
 658
 659                         /* Might not exist in /etc/passwd. */
 660
 661                         if (tmp_debug < 1) {
 662                                 DEBUGLEVEL = 1;
 663                         }
 664
 665                         if ( !(pwd = getpwnam_alloc( NULL, user_name)) ) {
 666                                 return NT_STATUS_NO_SUCH_USER;
 667                         }
 668
 669                         /* create the struct samu and initialize the basic Unix properties */
 670
 671                         if ( !(sam_pass = samu_new( NULL )) ) {
 672                                 return NT_STATUS_NO_MEMORY;
 673                         }
 674
 675                         result = samu_set_unix( sam_pass, pwd );
 676
 677                         DEBUGLEVEL = tmp_debug;
 678
 679                         TALLOC_FREE( pwd );
 680
 681                         if (NT_STATUS_EQUAL(result, NT_STATUS_INVALID_PRIMARY_GROUP)) {
 682                                 return result;
 683                         }
 684
 685                         if (!NT_STATUS_IS_OK(result)) {
 686                                 slprintf(err_str, err_str_len-1, "Failed to " "initialize account for user %s: %s\n",
 687                                         user_name, nt_errstr(result));
 688                                 return result;
 689                         }
 690                 } else {
 691                         slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
 692                         return NT_STATUS_NO_SUCH_USER;
 693                 }
 694         } else {
 695                 unbecome_root();
 696                 /* the entry already existed */
 697                 local_flags &= ~LOCAL_ADD_USER;
 698         }
 699
 700         /* the 'other' acb bits not being changed here */
 701         other_acb =  (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
 702         if (local_flags & LOCAL_TRUST_ACCOUNT) {
 703                 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
 704                         slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
 705                         TALLOC_FREE(sam_pass);
 706                         return NT_STATUS_UNSUCCESSFUL;
 707                 }
 708         } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
 709                 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
 710                         slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
 711                         TALLOC_FREE(sam_pass);
 712                         return NT_STATUS_UNSUCCESSFUL;
 713                 }
 714         } else {
 715                 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
 716                         slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
 717                         TALLOC_FREE(sam_pass);
 718                         return NT_STATUS_UNSUCCESSFUL;
 719                 }
 720         }
 721
 722         /*
 723          * We are root - just write the new password
 724          * and the valid last change time.
 725          */
 726
 727         if (local_flags & LOCAL_DISABLE_USER) {
 728                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
 729                         slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
 730                         TALLOC_FREE(sam_pass);
 731                         return NT_STATUS_UNSUCCESSFUL;
 732                 }
 733         } else if (local_flags & LOCAL_ENABLE_USER) {
 734                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
 735                         slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
 736                         TALLOC_FREE(sam_pass);
 737                         return NT_STATUS_UNSUCCESSFUL;
 738                 }
 739         }
 740
 741         if (local_flags & LOCAL_SET_NO_PASSWORD) {
 742                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
 743                         slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
 744                         TALLOC_FREE(sam_pass);
 745                         return NT_STATUS_UNSUCCESSFUL;
 746                 }
 747         } else if (local_flags & LOCAL_SET_PASSWORD) {
 748                 /*
 749                  * If we're dealing with setting a completely empty user account
 750                  * ie. One with a password of 'XXXX', but not set disabled (like
 751                  * an account created from scratch) then if the old password was
 752                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
 753                  * We remove that as we're giving this user their first password
 754                  * and the decision hasn't really been made to disable them (ie.
 755                  * don't create them disabled). JRA.
 756                  */
 757                 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
 758                         if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
 759                                 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
 760                                 TALLOC_FREE(sam_pass);
 761                                 return NT_STATUS_UNSUCCESSFUL;
 762                         }
 763                 }
 764                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
 765                         slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
 766                         TALLOC_FREE(sam_pass);
 767                         return NT_STATUS_UNSUCCESSFUL;
 768                 }
 769
 770                 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
 771                         slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
 772                         TALLOC_FREE(sam_pass);
 773                         return NT_STATUS_UNSUCCESSFUL;
 774                 }
 775         }
 776
 777         if (local_flags & LOCAL_ADD_USER) {
 778                 if (NT_STATUS_IS_OK(pdb_add_sam_account(sam_pass))) {
 779                         slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
 780                         TALLOC_FREE(sam_pass);
 781                         return NT_STATUS_OK;
 782                 } else {
 783                         slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
 784                         TALLOC_FREE(sam_pass);
 785                         return NT_STATUS_UNSUCCESSFUL;
 786                 }
 787         } else if (local_flags & LOCAL_DELETE_USER) {
 788                 if (!NT_STATUS_IS_OK(pdb_delete_sam_account(sam_pass))) {
 789                         slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
 790                         TALLOC_FREE(sam_pass);
 791                         return NT_STATUS_UNSUCCESSFUL;
 792                 }
 793                 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
 794         } else {
 795                 result = pdb_update_sam_account(sam_pass);
 796                 if(!NT_STATUS_IS_OK(result)) {
 797                         slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
 798                         TALLOC_FREE(sam_pass);
 799                         return result;
 800                 }
 801                 if(local_flags & LOCAL_DISABLE_USER)
 802                         slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
 803                 else if (local_flags & LOCAL_ENABLE_USER)
 804                         slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
 805                 else if (local_flags & LOCAL_SET_NO_PASSWORD)
 806                         slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
 807         }
 808
 809         TALLOC_FREE(sam_pass);
 810         return NT_STATUS_OK;
 811 }
 812
 813 /**********************************************************************
 814  Marshall/unmarshall struct samu structs.
 815  *********************************************************************/
 816
 817 #define TDB_FORMAT_STRING_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
 818
 819 /*********************************************************************
 820 *********************************************************************/
 821
 822 BOOL init_sam_from_buffer_v3(struct samu *sampass, uint8 *buf, uint32 buflen)
 823 {
 824
 825         /* times are stored as 32bit integer
 826            take care on system with 64bit wide time_t
 827            --SSS */
 828         uint32  logon_time,
 829                 logoff_time,
 830                 kickoff_time,
 831                 bad_password_time,
 832                 pass_last_set_time,
 833                 pass_can_change_time,
 834                 pass_must_change_time;
 835         char *username = NULL;
 836         char *domain = NULL;
 837         char *nt_username = NULL;
 838         char *dir_drive = NULL;
 839         char *unknown_str = NULL;
 840         char *munged_dial = NULL;
 841         char *fullname = NULL;
 842         char *homedir = NULL;
 843         char *logon_script = NULL;
 844         char *profile_path = NULL;
 845         char *acct_desc = NULL;
 846         char *workstations = NULL;
 847         uint32  username_len, domain_len, nt_username_len,
 848                 dir_drive_len, unknown_str_len, munged_dial_len,
 849                 fullname_len, homedir_len, logon_script_len,
 850                 profile_path_len, acct_desc_len, workstations_len;
 851
 852         uint32  user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
 853         uint16  logon_divs;
 854         uint16  bad_password_count, logon_count;
 855         uint8   *hours = NULL;
 856         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
 857         uint32          len = 0;
 858         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
 859         uint32 pwHistLen = 0;
 860         BOOL ret = True;
 861         fstring tmpstring;
 862         BOOL expand_explicit = lp_passdb_expand_explicit();
 863
 864         if(sampass == NULL || buf == NULL) {
 865                 DEBUG(0, ("init_sam_from_buffer_v3: NULL parameters found!\n"));
 866                 return False;
 867         }
 868
 869 /* TDB_FORMAT_STRING_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
 870
 871         /* unpack the buffer into variables */
 872         len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V3,
 873                 &logon_time,                                            /* d */
 874                 &logoff_time,                                           /* d */
 875                 &kickoff_time,                                          /* d */
 876                 &bad_password_time,                                     /* d */
 877                 &pass_last_set_time,                                    /* d */
 878                 &pass_can_change_time,                                  /* d */
 879                 &pass_must_change_time,                                 /* d */
 880                 &username_len, &username,                               /* B */
 881                 &domain_len, &domain,                                   /* B */
 882                 &nt_username_len, &nt_username,                         /* B */
 883                 &fullname_len, &fullname,                               /* B */
 884                 &homedir_len, &homedir,                                 /* B */
 885                 &dir_drive_len, &dir_drive,                             /* B */
 886                 &logon_script_len, &logon_script,                       /* B */
 887                 &profile_path_len, &profile_path,                       /* B */
 888                 &acct_desc_len, &acct_desc,                             /* B */
 889                 &workstations_len, &workstations,                       /* B */
 890                 &unknown_str_len, &unknown_str,                         /* B */
 891                 &munged_dial_len, &munged_dial,                         /* B */
 892                 &user_rid,                                              /* d */
 893                 &group_rid,                                             /* d */
 894                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
 895                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
 896                 /* Change from V1 is addition of password history field. */
 897                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
 898                 /* Change from V2 is the uint32 acb_mask */
 899                 &acct_ctrl,                                             /* d */
 900                 /* Also "remove_me" field was removed. */
 901                 &logon_divs,                                            /* w */
 902                 &hours_len,                                             /* d */
 903                 &hourslen, &hours,                                      /* B */
 904                 &bad_password_count,                                    /* w */
 905                 &logon_count,                                           /* w */
 906                 &unknown_6);                                            /* d */
 907
 908         if (len == (uint32) -1)  {
 909                 ret = False;
 910                 goto done;
 911         }
 912
 913         pdb_set_logon_time(sampass, logon_time, PDB_SET);
 914         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 915         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 916         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
 917         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
 918         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
 919         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
 920
 921         pdb_set_username(sampass, username, PDB_SET);
 922         pdb_set_domain(sampass, domain, PDB_SET);
 923         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 924         pdb_set_fullname(sampass, fullname, PDB_SET);
 925
 926         if (homedir) {
 927                 fstrcpy( tmpstring, homedir );
 928                 if (expand_explicit) {
 929                         standard_sub_basic( username, tmpstring,
 930                                             sizeof(tmpstring) );
 931                 }
 932                 pdb_set_homedir(sampass, tmpstring, PDB_SET);
 933         }
 934         else {
 935                 pdb_set_homedir(sampass,
 936                         talloc_sub_basic(sampass, username, lp_logon_home()),
 937                         PDB_DEFAULT);
 938         }
 939
 940         if (dir_drive)
 941                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 942         else
 943                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
 944
 945         if (logon_script) {
 946                 fstrcpy( tmpstring, logon_script );
 947                 if (expand_explicit) {
 948                         standard_sub_basic( username, tmpstring,
 949                                             sizeof(tmpstring) );
 950                 }
 951                 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
 952         }
 953         else {
 954                 pdb_set_logon_script(sampass,
 955                         talloc_sub_basic(sampass, username, lp_logon_script()),
 956                         PDB_DEFAULT);
 957         }
 958
 959         if (profile_path) {
 960                 fstrcpy( tmpstring, profile_path );
 961                 if (expand_explicit) {
 962                         standard_sub_basic( username, tmpstring,
 963                                             sizeof(tmpstring) );
 964                 }
 965                 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
 966         }
 967         else {
 968                 pdb_set_profile_path(sampass,
 969                         talloc_sub_basic(sampass, username, lp_logon_path()),
 970                         PDB_DEFAULT);
 971         }
 972
 973         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 974         pdb_set_workstations(sampass, workstations, PDB_SET);
 975         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 976
 977         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
 978                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
 979                         ret = False;
 980                         goto done;
 981                 }
 982         }
 983
 984         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
 985                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
 986                         ret = False;
 987                         goto done;
 988                 }
 989         }
 990
 991         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
 992         if (pwHistLen) {
 993                 uint8 *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
 994                 if (!pw_hist) {
 995                         ret = False;
 996                         goto done;
 997                 }
 998                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 999                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1000                         int i;
1001                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1002                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1003                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1004                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1005                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1006                                         PW_HISTORY_ENTRY_LEN);
1007                         }
1008                 }
1009                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1010                         SAFE_FREE(pw_hist);
1011                         ret = False;
1012                         goto done;
1013                 }
1014                 SAFE_FREE(pw_hist);
1015         } else {
1016                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1017         }
1018
1019         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1020         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1021         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1022         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1023         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1024         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1025         /* Change from V2 is the uint32 acct_ctrl */
1026         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1027         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1028         pdb_set_hours(sampass, hours, PDB_SET);
1029
1030 done:
1031
1032         SAFE_FREE(username);
1033         SAFE_FREE(domain);
1034         SAFE_FREE(nt_username);
1035         SAFE_FREE(fullname);
1036         SAFE_FREE(homedir);
1037         SAFE_FREE(dir_drive);
1038         SAFE_FREE(logon_script);
1039         SAFE_FREE(profile_path);
1040         SAFE_FREE(acct_desc);
1041         SAFE_FREE(workstations);
1042         SAFE_FREE(munged_dial);
1043         SAFE_FREE(unknown_str);
1044         SAFE_FREE(lm_pw_ptr);
1045         SAFE_FREE(nt_pw_ptr);
1046         SAFE_FREE(nt_pw_hist_ptr);
1047         SAFE_FREE(hours);
1048
1049         return ret;
1050 }
1051
1052 /*********************************************************************
1053 *********************************************************************/
1054
1055 uint32 init_buffer_from_sam_v3 (uint8 **buf, struct samu *sampass, BOOL size_only)
1056 {
1057         size_t len, buflen;
1058
1059         /* times are stored as 32bit integer
1060            take care on system with 64bit wide time_t
1061            --SSS */
1062         uint32  logon_time,
1063                 logoff_time,
1064                 kickoff_time,
1065                 bad_password_time,
1066                 pass_last_set_time,
1067                 pass_can_change_time,
1068                 pass_must_change_time;
1069
1070         uint32  user_rid, group_rid;
1071
1072         const char *username;
1073         const char *domain;
1074         const char *nt_username;
1075         const char *dir_drive;
1076         const char *unknown_str;
1077         const char *munged_dial;
1078         const char *fullname;
1079         const char *homedir;
1080         const char *logon_script;
1081         const char *profile_path;
1082         const char *acct_desc;
1083         const char *workstations;
1084         uint32  username_len, domain_len, nt_username_len,
1085                 dir_drive_len, unknown_str_len, munged_dial_len,
1086                 fullname_len, homedir_len, logon_script_len,
1087                 profile_path_len, acct_desc_len, workstations_len;
1088
1089         const uint8 *lm_pw;
1090         const uint8 *nt_pw;
1091         const uint8 *nt_pw_hist;
1092         uint32  lm_pw_len = 16;
1093         uint32  nt_pw_len = 16;
1094         uint32  nt_pw_hist_len;
1095         uint32 pwHistLen = 0;
1096
1097         *buf = NULL;
1098         buflen = 0;
1099
1100         logon_time = (uint32)pdb_get_logon_time(sampass);
1101         logoff_time = (uint32)pdb_get_logoff_time(sampass);
1102         kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
1103         bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
1104         pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
1105         pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
1106         pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
1107
1108         user_rid = pdb_get_user_rid(sampass);
1109         group_rid = pdb_get_group_rid(sampass);
1110
1111         username = pdb_get_username(sampass);
1112         if (username) {
1113                 username_len = strlen(username) +1;
1114         } else {
1115                 username_len = 0;
1116         }
1117
1118         domain = pdb_get_domain(sampass);
1119         if (domain) {
1120                 domain_len = strlen(domain) +1;
1121         } else {
1122                 domain_len = 0;
1123         }
1124
1125         nt_username = pdb_get_nt_username(sampass);
1126         if (nt_username) {
1127                 nt_username_len = strlen(nt_username) +1;
1128         } else {
1129                 nt_username_len = 0;
1130         }
1131
1132         fullname = pdb_get_fullname(sampass);
1133         if (fullname) {
1134                 fullname_len = strlen(fullname) +1;
1135         } else {
1136                 fullname_len = 0;
1137         }
1138
1139         /*
1140          * Only updates fields which have been set (not defaults from smb.conf)
1141          */
1142
1143         if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1144                 dir_drive = pdb_get_dir_drive(sampass);
1145         } else {
1146                 dir_drive = NULL;
1147         }
1148         if (dir_drive) {
1149                 dir_drive_len = strlen(dir_drive) +1;
1150         } else {
1151                 dir_drive_len = 0;
1152         }
1153
1154         if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1155                 homedir = pdb_get_homedir(sampass);
1156         } else {
1157                 homedir = NULL;
1158         }
1159         if (homedir) {
1160                 homedir_len = strlen(homedir) +1;
1161         } else {
1162                 homedir_len = 0;
1163         }
1164
1165         if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1166                 logon_script = pdb_get_logon_script(sampass);
1167         } else {
1168                 logon_script = NULL;
1169         }
1170         if (logon_script) {
1171                 logon_script_len = strlen(logon_script) +1;
1172         } else {
1173                 logon_script_len = 0;
1174         }
1175
1176         if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1177                 profile_path = pdb_get_profile_path(sampass);
1178         } else {
1179                 profile_path = NULL;
1180         }
1181         if (profile_path) {
1182                 profile_path_len = strlen(profile_path) +1;
1183         } else {
1184                 profile_path_len = 0;
1185         }
1186
1187         lm_pw = pdb_get_lanman_passwd(sampass);
1188         if (!lm_pw) {
1189                 lm_pw_len = 0;
1190         }
1191
1192         nt_pw = pdb_get_nt_passwd(sampass);
1193         if (!nt_pw) {
1194                 nt_pw_len = 0;
1195         }
1196
1197         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1198         nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
1199         if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1200                 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1201         } else {
1202                 nt_pw_hist_len = 0;
1203         }
1204
1205         acct_desc = pdb_get_acct_desc(sampass);
1206         if (acct_desc) {
1207                 acct_desc_len = strlen(acct_desc) +1;
1208         } else {
1209                 acct_desc_len = 0;
1210         }
1211
1212         workstations = pdb_get_workstations(sampass);
1213         if (workstations) {
1214                 workstations_len = strlen(workstations) +1;
1215         } else {
1216                 workstations_len = 0;
1217         }
1218
1219         unknown_str = NULL;
1220         unknown_str_len = 0;
1221
1222         munged_dial = pdb_get_munged_dial(sampass);
1223         if (munged_dial) {
1224                 munged_dial_len = strlen(munged_dial) +1;
1225         } else {
1226                 munged_dial_len = 0;
1227         }
1228
1229 /* TDB_FORMAT_STRING_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1230
1231         /* one time to get the size needed */
1232         len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING_V3,
1233                 logon_time,                             /* d */
1234                 logoff_time,                            /* d */
1235                 kickoff_time,                           /* d */
1236                 bad_password_time,                      /* d */
1237                 pass_last_set_time,                     /* d */
1238                 pass_can_change_time,                   /* d */
1239                 pass_must_change_time,                  /* d */
1240                 username_len, username,                 /* B */
1241                 domain_len, domain,                     /* B */
1242                 nt_username_len, nt_username,           /* B */
1243                 fullname_len, fullname,                 /* B */
1244                 homedir_len, homedir,                   /* B */
1245                 dir_drive_len, dir_drive,               /* B */
1246                 logon_script_len, logon_script,         /* B */
1247                 profile_path_len, profile_path,         /* B */
1248                 acct_desc_len, acct_desc,               /* B */
1249                 workstations_len, workstations,         /* B */
1250                 unknown_str_len, unknown_str,           /* B */
1251                 munged_dial_len, munged_dial,           /* B */
1252                 user_rid,                               /* d */
1253                 group_rid,                              /* d */
1254                 lm_pw_len, lm_pw,                       /* B */
1255                 nt_pw_len, nt_pw,                       /* B */
1256                 nt_pw_hist_len, nt_pw_hist,             /* B */
1257                 pdb_get_acct_ctrl(sampass),             /* d */
1258                 pdb_get_logon_divs(sampass),            /* w */
1259                 pdb_get_hours_len(sampass),             /* d */
1260                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1261                 pdb_get_bad_password_count(sampass),    /* w */
1262                 pdb_get_logon_count(sampass),           /* w */
1263                 pdb_get_unknown_6(sampass));            /* d */
1264
1265         if (size_only) {
1266                 return buflen;
1267         }
1268
1269         /* malloc the space needed */
1270         if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
1271                 DEBUG(0,("init_buffer_from_sam_v3: Unable to malloc() memory for buffer!\n"));
1272                 return (-1);
1273         }
1274
1275         /* now for the real call to tdb_pack() */
1276         buflen = tdb_pack((char *)*buf, len,  TDB_FORMAT_STRING_V3,
1277                 logon_time,                             /* d */
1278                 logoff_time,                            /* d */
1279                 kickoff_time,                           /* d */
1280                 bad_password_time,                      /* d */
1281                 pass_last_set_time,                     /* d */
1282                 pass_can_change_time,                   /* d */
1283                 pass_must_change_time,                  /* d */
1284                 username_len, username,                 /* B */
1285                 domain_len, domain,                     /* B */
1286                 nt_username_len, nt_username,           /* B */
1287                 fullname_len, fullname,                 /* B */
1288                 homedir_len, homedir,                   /* B */
1289                 dir_drive_len, dir_drive,               /* B */
1290                 logon_script_len, logon_script,         /* B */
1291                 profile_path_len, profile_path,         /* B */
1292                 acct_desc_len, acct_desc,               /* B */
1293                 workstations_len, workstations,         /* B */
1294                 unknown_str_len, unknown_str,           /* B */
1295                 munged_dial_len, munged_dial,           /* B */
1296                 user_rid,                               /* d */
1297                 group_rid,                              /* d */
1298                 lm_pw_len, lm_pw,                       /* B */
1299                 nt_pw_len, nt_pw,                       /* B */
1300                 nt_pw_hist_len, nt_pw_hist,             /* B */
1301                 pdb_get_acct_ctrl(sampass),             /* d */
1302                 pdb_get_logon_divs(sampass),            /* w */
1303                 pdb_get_hours_len(sampass),             /* d */
1304                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1305                 pdb_get_bad_password_count(sampass),    /* w */
1306                 pdb_get_logon_count(sampass),           /* w */
1307                 pdb_get_unknown_6(sampass));            /* d */
1308
1309         /* check to make sure we got it correct */
1310         if (buflen != len) {
1311                 DEBUG(0, ("init_buffer_from_sam_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
1312                           (unsigned long)buflen, (unsigned long)len));
1313                 /* error */
1314                 SAFE_FREE (*buf);
1315                 return (-1);
1316         }
1317
1318         return (buflen);
1319 }
1320
1321
1322 /*********************************************************************
1323 *********************************************************************/
1324
1325 BOOL pdb_copy_sam_account(struct samu *dst, struct samu *src )
1326 {
1327         uint8 *buf = NULL;
1328         int len;
1329
1330         len = init_buffer_from_sam_v3(&buf, src, False);
1331         if (len == -1 || !buf) {
1332                 SAFE_FREE(buf);
1333                 return False;
1334         }
1335
1336         if (!init_sam_from_buffer_v3( dst, buf, len )) {
1337                 free(buf);
1338                 return False;
1339         }
1340
1341         dst->methods = src->methods;
1342
1343         if ( src->unix_pw ) {
1344                 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
1345                 if (!dst->unix_pw) {
1346                         free(buf);
1347                         return False;
1348                 }
1349         }
1350
1351         free(buf);
1352         return True;
1353 }
1354
1355 /*********************************************************************
1356  Update the bad password count checking the AP_RESET_COUNT_TIME
1357 *********************************************************************/
1358
1359 BOOL pdb_update_bad_password_count(struct samu *sampass, BOOL *updated)
1360 {
1361         time_t LastBadPassword;
1362         uint16 BadPasswordCount;
1363         uint32 resettime;
1364
1365         BadPasswordCount = pdb_get_bad_password_count(sampass);
1366         if (!BadPasswordCount) {
1367                 DEBUG(9, ("No bad password attempts.\n"));
1368                 return True;
1369         }
1370
1371         if (!pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime)) {
1372                 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
1373                 return False;
1374         }
1375
1376         /* First, check if there is a reset time to compare */
1377         if ((resettime == (uint32) -1) || (resettime == 0)) {
1378                 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
1379                 return True;
1380         }
1381
1382         LastBadPassword = pdb_get_bad_password_time(sampass);
1383         DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
1384                    (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
1385         if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
1386                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1387                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1388                 if (updated) {
1389                         *updated = True;
1390                 }
1391         }
1392
1393         return True;
1394 }
1395
1396 /*********************************************************************
1397  Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
1398 *********************************************************************/
1399
1400 BOOL pdb_update_autolock_flag(struct samu *sampass, BOOL *updated)
1401 {
1402         uint32 duration;
1403         time_t LastBadPassword;
1404
1405         if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
1406                 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
1407                         pdb_get_username(sampass)));
1408                 return True;
1409         }
1410
1411         if (!pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration)) {
1412                 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
1413                 return False;
1414         }
1415
1416         /* First, check if there is a duration to compare */
1417         if ((duration == (uint32) -1)  || (duration == 0)) {
1418                 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
1419                 return True;
1420         }
1421
1422         LastBadPassword = pdb_get_bad_password_time(sampass);
1423         DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
1424                   pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
1425
1426         if (LastBadPassword == (time_t)0) {
1427                 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
1428 bad password time. Leaving locked out.\n",
1429                         pdb_get_username(sampass) ));
1430                         return True;
1431         }
1432
1433         if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
1434                 pdb_set_acct_ctrl(sampass,
1435                                   pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
1436                                   PDB_CHANGED);
1437                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1438                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1439                 if (updated) {
1440                         *updated = True;
1441                 }
1442         }
1443
1444         return True;
1445 }
1446
1447 /*********************************************************************
1448  Increment the bad_password_count
1449 *********************************************************************/
1450
1451 BOOL pdb_increment_bad_password_count(struct samu *sampass)
1452 {
1453         uint32 account_policy_lockout;
1454         BOOL autolock_updated = False, badpw_updated = False;
1455         BOOL ret;
1456
1457         /* Retrieve the account lockout policy */
1458         become_root();
1459         ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
1460         unbecome_root();
1461         if ( !ret ) {
1462                 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
1463                 return False;
1464         }
1465
1466         /* If there is no policy, we don't need to continue checking */
1467         if (!account_policy_lockout) {
1468                 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
1469                 return True;
1470         }
1471
1472         /* Check if the autolock needs to be cleared */
1473         if (!pdb_update_autolock_flag(sampass, &autolock_updated))
1474                 return False;
1475
1476         /* Check if the badpw count needs to be reset */
1477         if (!pdb_update_bad_password_count(sampass, &badpw_updated))
1478                 return False;
1479
1480         /*
1481           Ok, now we can assume that any resetting that needs to be
1482           done has been done, and just get on with incrementing
1483           and autolocking if necessary
1484         */
1485
1486         pdb_set_bad_password_count(sampass,
1487                                    pdb_get_bad_password_count(sampass)+1,
1488                                    PDB_CHANGED);
1489         pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
1490
1491
1492         if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
1493                 return True;
1494
1495         if (!pdb_set_acct_ctrl(sampass,
1496                                pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
1497                                PDB_CHANGED)) {
1498                 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
1499                 return False;
1500         }
1501
1502         return True;
1503 }