git.maemo.org Git - samba/blob - source/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          2000-2001
   7    Copyright (C) Andrew Bartlett                2001-2002
   8    Copyright (C) Simo Sorce                     2003
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  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.  For example, if you connect
  33  to a Windows member server using a bogus domain name, the
  34  Windows box will map the BOGUS\user to DOMAIN\user.  A
  35  standalone box will map to WKS\user.
  36 ******************************************************************/
  37
  38 const char *get_default_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         /* Windows domain members default to the DOMAIN
  45            name when not specified */
  46         return lp_workgroup();
  47 }
  48
  49 /************************************************************
  50  Fill the SAM_ACCOUNT with default values.
  51  ***********************************************************/
  52
  53 void pdb_fill_default_sam(SAM_ACCOUNT *user)
  54 {
  55         ZERO_STRUCT(user->private_u); /* Don't touch the talloc context */
  56
  57         /* no initial methods */
  58         user->methods = NULL;
  59
  60         /* Don't change these timestamp settings without a good reason.
  61            They are important for NT member server compatibility. */
  62
  63         user->private_u.logon_time            = (time_t)0;
  64         user->private_u.pass_last_set_time    = (time_t)0;
  65         user->private_u.pass_can_change_time  = (time_t)0;
  66         user->private_u.logoff_time           =
  67         user->private_u.kickoff_time          =
  68         user->private_u.pass_must_change_time = get_time_t_max();
  69         user->private_u.fields_present        = 0x00ffffff;
  70         user->private_u.logon_divs = 168;       /* hours per week */
  71         user->private_u.hours_len = 21;                 /* 21 times 8 bits = 168 */
  72         memset(user->private_u.hours, 0xff, user->private_u.hours_len); /* available at all hours */
  73         user->private_u.bad_password_count = 0;
  74         user->private_u.logon_count = 0;
  75         user->private_u.unknown_6 = 0x000004ec; /* don't know */
  76
  77         /* Some parts of samba strlen their pdb_get...() returns,
  78            so this keeps the interface unchanged for now. */
  79
  80         user->private_u.username = "";
  81         user->private_u.domain = "";
  82         user->private_u.nt_username = "";
  83         user->private_u.full_name = "";
  84         user->private_u.home_dir = "";
  85         user->private_u.logon_script = "";
  86         user->private_u.profile_path = "";
  87         user->private_u.acct_desc = "";
  88         user->private_u.workstations = "";
  89         user->private_u.unknown_str = "";
  90         user->private_u.munged_dial = "";
  91
  92         user->private_u.plaintext_pw = NULL;
  93
  94         /*
  95            Unless we know otherwise have a Account Control Bit
  96            value of 'normal user'.  This helps User Manager, which
  97            asks for a filtered list of users.
  98         */
  99
 100         user->private_u.acct_ctrl = ACB_NORMAL;
 101 }
 102
 103 static void destroy_pdb_talloc(SAM_ACCOUNT **user)
 104 {
 105         if (*user) {
 106                 data_blob_clear_free(&((*user)->private_u.lm_pw));
 107                 data_blob_clear_free(&((*user)->private_u.nt_pw));
 108
 109                 if((*user)->private_u.plaintext_pw!=NULL)
 110                         memset((*user)->private_u.plaintext_pw,'\0',strlen((*user)->private_u.plaintext_pw));
 111                 talloc_destroy((*user)->mem_ctx);
 112                 *user = NULL;
 113         }
 114 }
 115
 116
 117 /**********************************************************************
 118  Allocates memory and initialises a struct sam_passwd on supplied mem_ctx.
 119 ***********************************************************************/
 120
 121 NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
 122 {
 123         if (*user != NULL) {
 124                 DEBUG(0,("pdb_init_sam_talloc: SAM_ACCOUNT was non NULL\n"));
 125 #if 0
 126                 smb_panic("non-NULL pointer passed to pdb_init_sam\n");
 127 #endif
 128                 return NT_STATUS_UNSUCCESSFUL;
 129         }
 130
 131         if (!mem_ctx) {
 132                 DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
 133                 return NT_STATUS_UNSUCCESSFUL;
 134         }
 135
 136         *user=TALLOC_P(mem_ctx, SAM_ACCOUNT);
 137
 138         if (*user==NULL) {
 139                 DEBUG(0,("pdb_init_sam_talloc: error while allocating memory\n"));
 140                 return NT_STATUS_NO_MEMORY;
 141         }
 142
 143         (*user)->mem_ctx = mem_ctx;
 144
 145         (*user)->free_fn = NULL;
 146
 147         pdb_fill_default_sam(*user);
 148
 149         return NT_STATUS_OK;
 150 }
 151
 152
 153 /*************************************************************
 154  Allocates memory and initialises a struct sam_passwd.
 155  ************************************************************/
 156
 157 NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
 158 {
 159         TALLOC_CTX *mem_ctx;
 160         NTSTATUS nt_status;
 161
 162         mem_ctx = talloc_init("passdb internal SAM_ACCOUNT allocation");
 163
 164         if (!mem_ctx) {
 165                 DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
 166                 return NT_STATUS_NO_MEMORY;
 167         }
 168
 169         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
 170                 talloc_destroy(mem_ctx);
 171                 return nt_status;
 172         }
 173
 174         (*user)->free_fn = destroy_pdb_talloc;
 175
 176         return NT_STATUS_OK;
 177 }
 178
 179 /**************************************************************************
 180  * This function will take care of all the steps needed to correctly
 181  * allocate and set the user SID, please do use this function to create new
 182  * users, messing with SIDs is not good.
 183  *
 184  * account_data must be provided initialized, pwd may be null.
 185  *                                                                      SSS
 186  ***************************************************************************/
 187
 188 static NTSTATUS pdb_set_sam_sids(SAM_ACCOUNT *account_data, const struct passwd *pwd)
 189 {
 190         const char *guest_account = lp_guestaccount();
 191         GROUP_MAP map;
 192         BOOL ret;
 193
 194         if (!account_data || !pwd) {
 195                 return NT_STATUS_INVALID_PARAMETER;
 196         }
 197
 198         /* this is a hack this thing should not be set
 199            this way --SSS */
 200         if (!(guest_account && *guest_account)) {
 201                 DEBUG(1, ("NULL guest account!?!?\n"));
 202                 return NT_STATUS_UNSUCCESSFUL;
 203         } else {
 204                 /* Ensure this *must* be set right */
 205                 if (strcmp(pwd->pw_name, guest_account) == 0) {
 206                         if (!pdb_set_user_sid_from_rid(account_data, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
 207                                 return NT_STATUS_UNSUCCESSFUL;
 208                         }
 209                         if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
 210                                 return NT_STATUS_UNSUCCESSFUL;
 211                         }
 212                         return NT_STATUS_OK;
 213                 }
 214         }
 215
 216         if (!pdb_set_user_sid_from_rid(account_data, algorithmic_pdb_uid_to_user_rid(pwd->pw_uid), PDB_SET)) {
 217                 DEBUG(0,("Can't set User SID from RID!\n"));
 218                 return NT_STATUS_INVALID_PARAMETER;
 219         }
 220
 221         /* call the mapping code here */
 222         become_root();
 223         ret = pdb_getgrgid(&map, pwd->pw_gid);
 224         unbecome_root();
 225
 226         if( ret ) {
 227                 if (!pdb_set_group_sid(account_data, &map.sid, PDB_SET)){
 228                         DEBUG(0,("Can't set Group SID!\n"));
 229                         return NT_STATUS_INVALID_PARAMETER;
 230                 }
 231         }
 232         else {
 233                 if (!pdb_set_group_sid_from_rid(account_data, pdb_gid_to_group_rid(pwd->pw_gid), PDB_SET)) {
 234                         DEBUG(0,("Can't set Group SID\n"));
 235                         return NT_STATUS_INVALID_PARAMETER;
 236                 }
 237         }
 238
 239         return NT_STATUS_OK;
 240 }
 241
 242 /*************************************************************
 243  Initialises a struct sam_passwd with sane values.
 244  ************************************************************/
 245
 246 NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
 247 {
 248         NTSTATUS ret;
 249
 250         if (!pwd) {
 251                 return NT_STATUS_UNSUCCESSFUL;
 252         }
 253
 254         pdb_fill_default_sam(sam_account);
 255
 256         pdb_set_username(sam_account, pwd->pw_name, PDB_SET);
 257         pdb_set_fullname(sam_account, pwd->pw_gecos, PDB_SET);
 258
 259         pdb_set_unix_homedir(sam_account, pwd->pw_dir, PDB_SET);
 260
 261         pdb_set_domain (sam_account, get_global_sam_name(), PDB_DEFAULT);
 262
 263         /* When we get a proper uid -> SID and SID -> uid allocation
 264            mechinism, we should call it here.
 265
 266            We can't just set this to 0 or allow it only to be filled
 267            in when added to the backend, because the user's SID
 268            may already be in security descriptors etc.
 269
 270            -- abartlet 11-May-02
 271         */
 272
 273         ret = pdb_set_sam_sids(sam_account, pwd);
 274         if (!NT_STATUS_IS_OK(ret)) return ret;
 275
 276         /* check if this is a user account or a machine account */
 277         if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
 278         {
 279                 pdb_set_profile_path(sam_account,
 280                                      talloc_sub_specified((sam_account)->mem_ctx,
 281                                                             lp_logon_path(),
 282                                                             pwd->pw_name, global_myname(),
 283                                                             pwd->pw_uid, pwd->pw_gid),
 284                                      PDB_DEFAULT);
 285
 286                 pdb_set_homedir(sam_account,
 287                                 talloc_sub_specified((sam_account)->mem_ctx,
 288                                                        lp_logon_home(),
 289                                                        pwd->pw_name, global_myname(),
 290                                                        pwd->pw_uid, pwd->pw_gid),
 291                                 PDB_DEFAULT);
 292
 293                 pdb_set_dir_drive(sam_account,
 294                                   talloc_sub_specified((sam_account)->mem_ctx,
 295                                                          lp_logon_drive(),
 296                                                          pwd->pw_name, global_myname(),
 297                                                          pwd->pw_uid, pwd->pw_gid),
 298                                   PDB_DEFAULT);
 299
 300                 pdb_set_logon_script(sam_account,
 301                                      talloc_sub_specified((sam_account)->mem_ctx,
 302                                                             lp_logon_script(),
 303                                                             pwd->pw_name, global_myname(),
 304                                                             pwd->pw_uid, pwd->pw_gid),
 305                                      PDB_DEFAULT);
 306                 if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT)) {
 307                         DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", pwd->pw_name));
 308                         return NT_STATUS_UNSUCCESSFUL;
 309                 }
 310         } else {
 311                 if (!pdb_set_acct_ctrl(sam_account, ACB_WSTRUST, PDB_DEFAULT)) {
 312                         DEBUG(1, ("Failed to set 'trusted workstation account' flags for user %s.\n", pwd->pw_name));
 313                         return NT_STATUS_UNSUCCESSFUL;
 314                 }
 315         }
 316         return NT_STATUS_OK;
 317 }
 318
 319
 320 /*************************************************************
 321  Initialises a struct sam_passwd with sane values.
 322  ************************************************************/
 323
 324 NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
 325 {
 326         NTSTATUS nt_status;
 327
 328         if (!pwd) {
 329                 new_sam_acct = NULL;
 330                 return NT_STATUS_INVALID_PARAMETER;
 331         }
 332
 333         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
 334                 new_sam_acct = NULL;
 335                 return nt_status;
 336         }
 337
 338         if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
 339                 pdb_free_sam(new_sam_acct);
 340                 new_sam_acct = NULL;
 341                 return nt_status;
 342         }
 343
 344         return NT_STATUS_OK;
 345 }
 346
 347
 348 /*************************************************************
 349  Initialises a SAM_ACCOUNT ready to add a new account, based
 350  on the UNIX user.  Pass in a RID if you have one
 351  ************************************************************/
 352
 353 NTSTATUS pdb_init_sam_new(SAM_ACCOUNT **new_sam_acct, const char *username,
 354                           uint32 rid)
 355 {
 356         NTSTATUS        nt_status = NT_STATUS_NO_MEMORY;
 357         struct passwd   *pwd;
 358         BOOL            ret;
 359
 360         pwd = Get_Pwnam(username);
 361
 362         if (!pwd)
 363                 return NT_STATUS_NO_SUCH_USER;
 364
 365         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(new_sam_acct, pwd))) {
 366                 *new_sam_acct = NULL;
 367                 return nt_status;
 368         }
 369
 370         /* see if we need to generate a new rid using the 2.2 algorithm */
 371         if ( rid == 0 && lp_enable_rid_algorithm() ) {
 372                 DEBUG(10,("pdb_init_sam_new: no RID specified.  Generating one via old algorithm\n"));
 373                 rid = algorithmic_pdb_uid_to_user_rid(pwd->pw_uid);
 374         }
 375
 376         /* set the new SID */
 377
 378         ret = pdb_set_user_sid_from_rid( *new_sam_acct, rid, PDB_SET );
 379
 380         return (ret ? NT_STATUS_OK : NT_STATUS_NO_SUCH_USER);
 381 }
 382
 383
 384 /**
 385  * Free the contets of the SAM_ACCOUNT, but not the structure.
 386  *
 387  * Also wipes the LM and NT hashes and plaintext password from
 388  * memory.
 389  *
 390  * @param user SAM_ACCOUNT to free members of.
 391  **/
 392
 393 static void pdb_free_sam_contents(SAM_ACCOUNT *user)
 394 {
 395
 396         /* Kill off sensitive data.  Free()ed by the
 397            talloc mechinism */
 398
 399         data_blob_clear_free(&(user->private_u.lm_pw));
 400         data_blob_clear_free(&(user->private_u.nt_pw));
 401         if (user->private_u.plaintext_pw!=NULL)
 402                 memset(user->private_u.plaintext_pw,'\0',strlen(user->private_u.plaintext_pw));
 403
 404         if (user->private_u.backend_private_data && user->private_u.backend_private_data_free_fn) {
 405                 user->private_u.backend_private_data_free_fn(&user->private_u.backend_private_data);
 406         }
 407 }
 408
 409
 410 /************************************************************
 411  Reset the SAM_ACCOUNT and free the NT/LM hashes.
 412  ***********************************************************/
 413
 414 NTSTATUS pdb_reset_sam(SAM_ACCOUNT *user)
 415 {
 416         if (user == NULL) {
 417                 DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
 418 #if 0
 419                 smb_panic("NULL pointer passed to pdb_free_sam\n");
 420 #endif
 421                 return NT_STATUS_UNSUCCESSFUL;
 422         }
 423
 424         pdb_free_sam_contents(user);
 425
 426         pdb_fill_default_sam(user);
 427
 428         return NT_STATUS_OK;
 429 }
 430
 431
 432 /************************************************************
 433  Free the SAM_ACCOUNT and the member pointers.
 434  ***********************************************************/
 435
 436 NTSTATUS pdb_free_sam(SAM_ACCOUNT **user)
 437 {
 438         if (*user == NULL) {
 439                 DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
 440 #if 0
 441                 smb_panic("NULL pointer passed to pdb_free_sam\n");
 442 #endif
 443                 return NT_STATUS_UNSUCCESSFUL;
 444         }
 445
 446         pdb_free_sam_contents(*user);
 447
 448         if ((*user)->free_fn) {
 449                 (*user)->free_fn(user);
 450         }
 451
 452         return NT_STATUS_OK;
 453 }
 454
 455 /**********************************************************
 456  Encode the account control bits into a string.
 457  length = length of string to encode into (including terminating
 458  null). length *MUST BE MORE THAN 2* !
 459  **********************************************************/
 460
 461 char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
 462 {
 463         static fstring acct_str;
 464
 465         size_t i = 0;
 466
 467         SMB_ASSERT(length <= sizeof(acct_str));
 468
 469         acct_str[i++] = '[';
 470
 471         if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
 472         if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
 473         if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
 474         if (acct_ctrl & ACB_TEMPDUP  ) acct_str[i++] = 'T';
 475         if (acct_ctrl & ACB_NORMAL   ) acct_str[i++] = 'U';
 476         if (acct_ctrl & ACB_MNS      ) acct_str[i++] = 'M';
 477         if (acct_ctrl & ACB_WSTRUST  ) acct_str[i++] = 'W';
 478         if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
 479         if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
 480         if (acct_ctrl & ACB_PWNOEXP  ) acct_str[i++] = 'X';
 481         if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
 482
 483         for ( ; i < length - 2 ; i++ )
 484                 acct_str[i] = ' ';
 485
 486         i = length - 2;
 487         acct_str[i++] = ']';
 488         acct_str[i++] = '\0';
 489
 490         return acct_str;
 491 }
 492
 493 /**********************************************************
 494  Decode the account control bits from a string.
 495  **********************************************************/
 496
 497 uint16 pdb_decode_acct_ctrl(const char *p)
 498 {
 499         uint16 acct_ctrl = 0;
 500         BOOL finished = False;
 501
 502         /*
 503          * Check if the account type bits have been encoded after the
 504          * NT password (in the form [NDHTUWSLXI]).
 505          */
 506
 507         if (*p != '[')
 508                 return 0;
 509
 510         for (p++; *p && !finished; p++) {
 511                 switch (*p) {
 512                         case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
 513                         case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
 514                         case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
 515                         case 'T': { acct_ctrl |= ACB_TEMPDUP  ; break; /* 'T'emp account. */ }
 516                         case 'U': { acct_ctrl |= ACB_NORMAL   ; break; /* 'U'ser account (normal). */ }
 517                         case 'M': { acct_ctrl |= ACB_MNS      ; break; /* 'M'NS logon user account. What is this ? */ }
 518                         case 'W': { acct_ctrl |= ACB_WSTRUST  ; break; /* 'W'orkstation account. */ }
 519                         case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
 520                         case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
 521                         case 'X': { acct_ctrl |= ACB_PWNOEXP  ; break; /* No 'X'piry on password */ }
 522                         case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
 523             case ' ': { break; }
 524                         case ':':
 525                         case '\n':
 526                         case '\0':
 527                         case ']':
 528                         default:  { finished = True; }
 529                 }
 530         }
 531
 532         return acct_ctrl;
 533 }
 534
 535 /*************************************************************
 536  Routine to set 32 hex password characters from a 16 byte array.
 537 **************************************************************/
 538
 539 void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
 540 {
 541         if (pwd != NULL) {
 542                 int i;
 543                 for (i = 0; i < 16; i++)
 544                         slprintf(&p[i*2], 3, "%02X", pwd[i]);
 545         } else {
 546                 if (acct_ctrl & ACB_PWNOTREQ)
 547                         safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
 548                 else
 549                         safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
 550         }
 551 }
 552
 553 /*************************************************************
 554  Routine to get the 32 hex characters and turn them
 555  into a 16 byte array.
 556 **************************************************************/
 557
 558 BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
 559 {
 560         int i;
 561         unsigned char   lonybble, hinybble;
 562         const char      *hexchars = "0123456789ABCDEF";
 563         char           *p1, *p2;
 564
 565         if (!p)
 566                 return (False);
 567
 568         for (i = 0; i < 32; i += 2) {
 569                 hinybble = toupper_ascii(p[i]);
 570                 lonybble = toupper_ascii(p[i + 1]);
 571
 572                 p1 = strchr(hexchars, hinybble);
 573                 p2 = strchr(hexchars, lonybble);
 574
 575                 if (!p1 || !p2)
 576                         return (False);
 577
 578                 hinybble = PTR_DIFF(p1, hexchars);
 579                 lonybble = PTR_DIFF(p2, hexchars);
 580
 581                 pwd[i / 2] = (hinybble << 4) | lonybble;
 582         }
 583         return (True);
 584 }
 585
 586 /*************************************************************
 587  Routine to set 42 hex hours characters from a 21 byte array.
 588 **************************************************************/
 589
 590 void pdb_sethexhours(char *p, const unsigned char *hours)
 591 {
 592         if (hours != NULL) {
 593                 int i;
 594                 for (i = 0; i < 21; i++) {
 595                         slprintf(&p[i*2], 3, "%02X", hours[i]);
 596                 }
 597         } else {
 598                 safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
 599         }
 600 }
 601
 602 /*************************************************************
 603  Routine to get the 42 hex characters and turn them
 604  into a 21 byte array.
 605 **************************************************************/
 606
 607 BOOL pdb_gethexhours(const char *p, unsigned char *hours)
 608 {
 609         int i;
 610         unsigned char   lonybble, hinybble;
 611         const char      *hexchars = "0123456789ABCDEF";
 612         char           *p1, *p2;
 613
 614         if (!p) {
 615                 return (False);
 616         }
 617
 618         for (i = 0; i < 42; i += 2) {
 619                 hinybble = toupper_ascii(p[i]);
 620                 lonybble = toupper_ascii(p[i + 1]);
 621
 622                 p1 = strchr(hexchars, hinybble);
 623                 p2 = strchr(hexchars, lonybble);
 624
 625                 if (!p1 || !p2) {
 626                         return (False);
 627                 }
 628
 629                 hinybble = PTR_DIFF(p1, hexchars);
 630                 lonybble = PTR_DIFF(p2, hexchars);
 631
 632                 hours[i / 2] = (hinybble << 4) | lonybble;
 633         }
 634         return (True);
 635 }
 636
 637 int algorithmic_rid_base(void)
 638 {
 639         static int rid_offset = 0;
 640
 641         if (rid_offset != 0)
 642                 return rid_offset;
 643
 644         rid_offset = lp_algorithmic_rid_base();
 645
 646         if (rid_offset < BASE_RID) {
 647                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 648                    rids below 1000, that's the 'well known RIDs' on NT */
 649                 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
 650                 rid_offset = BASE_RID;
 651         }
 652         if (rid_offset & 1) {
 653                 DEBUG(0, ("algorithmic rid base must be even\n"));
 654                 rid_offset += 1;
 655         }
 656         return rid_offset;
 657 }
 658
 659 /*******************************************************************
 660  Converts NT user RID to a UNIX uid.
 661  ********************************************************************/
 662
 663 uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
 664 {
 665         int rid_offset = algorithmic_rid_base();
 666         return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
 667 }
 668
 669 /*******************************************************************
 670  converts UNIX uid to an NT User RID.
 671  ********************************************************************/
 672
 673 uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
 674 {
 675         int rid_offset = algorithmic_rid_base();
 676         return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
 677 }
 678
 679 /*******************************************************************
 680  Converts NT group RID to a UNIX gid.
 681  ********************************************************************/
 682
 683 gid_t pdb_group_rid_to_gid(uint32 group_rid)
 684 {
 685         int rid_offset = algorithmic_rid_base();
 686         return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
 687 }
 688
 689 /*******************************************************************
 690  converts NT Group RID to a UNIX uid.
 691
 692  warning: you must not call that function only
 693  you must do a call to the group mapping first.
 694  there is not anymore a direct link between the gid and the rid.
 695  ********************************************************************/
 696
 697 uint32 pdb_gid_to_group_rid(gid_t gid)
 698 {
 699         int rid_offset = algorithmic_rid_base();
 700         return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
 701 }
 702
 703 /*******************************************************************
 704  Decides if a RID is a well known RID.
 705  ********************************************************************/
 706
 707 static BOOL pdb_rid_is_well_known(uint32 rid)
 708 {
 709         /* Not using rid_offset here, because this is the actual
 710            NT fixed value (1000) */
 711
 712         return (rid < BASE_RID);
 713 }
 714
 715 /*******************************************************************
 716  Decides if a RID is a user or group RID.
 717  ********************************************************************/
 718
 719 BOOL algorithmic_pdb_rid_is_user(uint32 rid)
 720 {
 721         if(pdb_rid_is_well_known(rid)) {
 722                 /*
 723                  * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
 724                  * and DOMAIN_USER_RID_GUEST.
 725                  */
 726                 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
 727                         return True;
 728         } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
 729                 return True;
 730         }
 731         return False;
 732 }
 733
 734 /*******************************************************************
 735  Look up a rid in the SAM we're responsible for (i.e. passdb)
 736  ********************************************************************/
 737
 738 BOOL lookup_global_sam_rid(uint32 rid, fstring name,
 739                            enum SID_NAME_USE *psid_name_use)
 740 {
 741         SAM_ACCOUNT *sam_account = NULL;
 742         GROUP_MAP map;
 743         BOOL ret;
 744         DOM_SID sid;
 745
 746         *psid_name_use = SID_NAME_UNKNOWN;
 747
 748         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
 749                  (unsigned int)rid));
 750
 751         sid_copy(&sid, get_global_sam_sid());
 752         sid_append_rid(&sid, rid);
 753
 754         /* see if the passdb can help us with the name of the user */
 755         if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
 756                 return False;
 757         }
 758
 759         /* BEING ROOT BLLOCK */
 760         become_root();
 761         if (pdb_getsampwsid(sam_account, &sid)) {
 762                 unbecome_root();                /* -----> EXIT BECOME_ROOT() */
 763                 fstrcpy(name, pdb_get_username(sam_account));
 764                 *psid_name_use = SID_NAME_USER;
 765
 766                 pdb_free_sam(&sam_account);
 767
 768                 return True;
 769         }
 770         pdb_free_sam(&sam_account);
 771
 772         ret = pdb_getgrsid(&map, sid);
 773         unbecome_root();
 774         /* END BECOME_ROOT BLOCK */
 775
 776         if ( ret ) {
 777                 if (map.gid!=(gid_t)-1) {
 778                         DEBUG(5,("lookup_global_sam_rid: mapped group %s to "
 779                                  "gid %u\n", map.nt_name,
 780                                  (unsigned int)map.gid));
 781                 } else {
 782                         DEBUG(5,("lookup_global_sam_rid: mapped group %s to "
 783                                  "no unix gid.  Returning name.\n",
 784                                  map.nt_name));
 785                 }
 786
 787                 fstrcpy(name, map.nt_name);
 788                 *psid_name_use = map.sid_name_use;
 789                 return True;
 790         }
 791
 792         if (rid == DOMAIN_USER_RID_ADMIN) {
 793                 *psid_name_use = SID_NAME_USER;
 794                 fstrcpy(name, "Administrator");
 795                 return True;
 796         }
 797
 798         if (algorithmic_pdb_rid_is_user(rid)) {
 799                 uid_t uid;
 800                 struct passwd *pw = NULL;
 801
 802                 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
 803
 804                 uid = algorithmic_pdb_user_rid_to_uid(rid);
 805                 pw = sys_getpwuid( uid );
 806
 807                 DEBUG(5,("lookup_global_sam_rid: looking up uid %u %s\n",
 808                          (unsigned int)uid, pw ? "succeeded" : "failed" ));
 809
 810                 if ( !pw )
 811                         fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
 812                 else
 813                         fstrcpy( name, pw->pw_name );
 814
 815                 DEBUG(5,("lookup_global_sam_rid: found user %s for rid %u\n",
 816                          name, (unsigned int)rid ));
 817
 818                 *psid_name_use = SID_NAME_USER;
 819
 820                 return ( pw != NULL );
 821         } else {
 822                 gid_t gid;
 823                 struct group *gr;
 824
 825                 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
 826
 827                 gid = pdb_group_rid_to_gid(rid);
 828                 gr = getgrgid(gid);
 829
 830                 DEBUG(5,("lookup_global_sam_rid: looking up gid %u %s\n",
 831                          (unsigned int)gid, gr ? "succeeded" : "failed" ));
 832
 833                 if( !gr )
 834                         fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
 835                 else
 836                         fstrcpy( name, gr->gr_name);
 837
 838                 DEBUG(5,("lookup_global_sam_rid: found group %s for rid %u\n",
 839                          name, (unsigned int)rid ));
 840
 841                 /* assume algorithmic groups are domain global groups */
 842
 843                 *psid_name_use = SID_NAME_DOM_GRP;
 844
 845                 return ( gr != NULL );
 846         }
 847 }
 848
 849 /*******************************************************************
 850  Convert a name into a SID. Used in the lookup name rpc.
 851  ********************************************************************/
 852
 853 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
 854 {
 855         DOM_SID local_sid;
 856         DOM_SID sid;
 857         fstring user;
 858         SAM_ACCOUNT *sam_account = NULL;
 859         struct group *grp;
 860         GROUP_MAP map;
 861
 862         *psid_name_use = SID_NAME_UNKNOWN;
 863
 864         /*
 865          * user may be quoted a const string, and map_username and
 866          * friends can modify it. Make a modifiable copy. JRA.
 867          */
 868
 869         fstrcpy(user, c_user);
 870
 871         sid_copy(&local_sid, get_global_sam_sid());
 872
 873         if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
 874                 fstring sid_str;
 875                 sid_copy( psid, &sid);
 876                 sid_to_string(sid_str, &sid);
 877                 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
 878                         (unsigned int)*psid_name_use ));
 879                 return True;
 880         }
 881
 882         (void)map_username(user);
 883
 884         if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
 885                 return False;
 886         }
 887
 888         /* BEGIN ROOT BLOCK */
 889
 890         become_root();
 891         if (pdb_getsampwnam(sam_account, user)) {
 892                 unbecome_root();
 893                 sid_copy(psid, pdb_get_user_sid(sam_account));
 894                 *psid_name_use = SID_NAME_USER;
 895
 896                 pdb_free_sam(&sam_account);
 897                 return True;
 898         }
 899
 900         pdb_free_sam(&sam_account);
 901
 902         /*
 903          * Maybe it was a group ?
 904          */
 905
 906         /* check if it's a mapped group */
 907         if (pdb_getgrnam(&map, user)) {
 908                 /* yes it's a mapped group */
 909                 sid_copy(&local_sid, &map.sid);
 910                 *psid_name_use = map.sid_name_use;
 911         } else {
 912                 /* it's not a mapped group */
 913                 grp = getgrnam(user);
 914                 if(!grp) {
 915                         unbecome_root();                /* ---> exit form block */
 916                         return False;
 917                 }
 918
 919                 /*
 920                  *check if it's mapped, if it is reply it doesn't exist
 921                  *
 922                  * that's to prevent this case:
 923                  *
 924                  * unix group ug is mapped to nt group ng
 925                  * someone does a lookup on ug
 926                  * we must not reply as it doesn't "exist" anymore
 927                  * for NT. For NT only ng exists.
 928                  * JFM, 30/11/2001
 929                  */
 930
 931                 if (pdb_getgrgid(&map, grp->gr_gid)){
 932                         unbecome_root();                /* ---> exit form block */
 933                         return False;
 934                 }
 935
 936                 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
 937                 *psid_name_use = SID_NAME_ALIAS;
 938         }
 939         unbecome_root();
 940         /* END ROOT BLOCK */
 941
 942         sid_copy( psid, &local_sid);
 943
 944         return True;
 945 }
 946
 947 /*************************************************************
 948  Change a password entry in the local smbpasswd file.
 949  *************************************************************/
 950
 951 BOOL local_password_change(const char *user_name, int local_flags,
 952                            const char *new_passwd,
 953                            char *err_str, size_t err_str_len,
 954                            char *msg_str, size_t msg_str_len)
 955 {
 956         SAM_ACCOUNT     *sam_pass=NULL;
 957         uint16 other_acb;
 958
 959         *err_str = '\0';
 960         *msg_str = '\0';
 961
 962         /* Get the smb passwd entry for this user */
 963         pdb_init_sam(&sam_pass);
 964
 965         become_root();
 966         if(!pdb_getsampwnam(sam_pass, user_name)) {
 967                 unbecome_root();
 968                 pdb_free_sam(&sam_pass);
 969
 970                 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
 971                         /* Might not exist in /etc/passwd.  Use rid algorithm here */
 972                         if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
 973                                 slprintf(err_str, err_str_len-1, "Failed to initialise SAM_ACCOUNT for user %s. Does this user exist in the UNIX password database ?\n", user_name);
 974                                 return False;
 975                         }
 976                 } else {
 977                         slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
 978                         return False;
 979                 }
 980         } else {
 981                 unbecome_root();
 982                 /* the entry already existed */
 983                 local_flags &= ~LOCAL_ADD_USER;
 984         }
 985
 986         /* the 'other' acb bits not being changed here */
 987         other_acb =  (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
 988         if (local_flags & LOCAL_TRUST_ACCOUNT) {
 989                 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
 990                         slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
 991                         pdb_free_sam(&sam_pass);
 992                         return False;
 993                 }
 994         } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
 995                 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
 996                         slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
 997                         pdb_free_sam(&sam_pass);
 998                         return False;
 999                 }
1000         } else {
1001                 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1002                         slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1003                         pdb_free_sam(&sam_pass);
1004                         return False;
1005                 }
1006         }
1007
1008         /*
1009          * We are root - just write the new password
1010          * and the valid last change time.
1011          */
1012
1013         if (local_flags & LOCAL_DISABLE_USER) {
1014                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1015                         slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1016                         pdb_free_sam(&sam_pass);
1017                         return False;
1018                 }
1019         } else if (local_flags & LOCAL_ENABLE_USER) {
1020                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1021                         slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1022                         pdb_free_sam(&sam_pass);
1023                         return False;
1024                 }
1025         }
1026
1027         if (local_flags & LOCAL_SET_NO_PASSWORD) {
1028                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1029                         slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1030                         pdb_free_sam(&sam_pass);
1031                         return False;
1032                 }
1033         } else if (local_flags & LOCAL_SET_PASSWORD) {
1034                 /*
1035                  * If we're dealing with setting a completely empty user account
1036                  * ie. One with a password of 'XXXX', but not set disabled (like
1037                  * an account created from scratch) then if the old password was
1038                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1039                  * We remove that as we're giving this user their first password
1040                  * and the decision hasn't really been made to disable them (ie.
1041                  * don't create them disabled). JRA.
1042                  */
1043                 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1044                         if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1045                                 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1046                                 pdb_free_sam(&sam_pass);
1047                                 return False;
1048                         }
1049                 }
1050                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1051                         slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1052                         pdb_free_sam(&sam_pass);
1053                         return False;
1054                 }
1055
1056                 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1057                         slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1058                         pdb_free_sam(&sam_pass);
1059                         return False;
1060                 }
1061         }
1062
1063         if (local_flags & LOCAL_ADD_USER) {
1064                 if (pdb_add_sam_account(sam_pass)) {
1065                         slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1066                         pdb_free_sam(&sam_pass);
1067                         return True;
1068                 } else {
1069                         slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1070                         pdb_free_sam(&sam_pass);
1071                         return False;
1072                 }
1073         } else if (local_flags & LOCAL_DELETE_USER) {
1074                 if (!pdb_delete_sam_account(sam_pass)) {
1075                         slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1076                         pdb_free_sam(&sam_pass);
1077                         return False;
1078                 }
1079                 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1080         } else {
1081                 if(!pdb_update_sam_account(sam_pass)) {
1082                         slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1083                         pdb_free_sam(&sam_pass);
1084                         return False;
1085                 }
1086                 if(local_flags & LOCAL_DISABLE_USER)
1087                         slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1088                 else if (local_flags & LOCAL_ENABLE_USER)
1089                         slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1090                 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1091                         slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1092         }
1093
1094         pdb_free_sam(&sam_pass);
1095         return True;
1096 }
1097
1098 /****************************************************************************
1099  Convert a uid to SID - algorithmic.
1100 ****************************************************************************/
1101
1102 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1103 {
1104         if ( !lp_enable_rid_algorithm() )
1105                 return NULL;
1106
1107         DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1108         sid_copy( psid, get_global_sam_sid() );
1109         sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
1110         DEBUG(10,("algorithmic_uid_to_sid:  uid (%d) -> SID %s.\n",
1111                 (unsigned int)uid, sid_string_static(psid) ));
1112
1113         return psid;
1114 }
1115
1116 /****************************************************************************
1117  Convert a uid to SID - locally.
1118 ****************************************************************************/
1119
1120 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1121 {
1122         SAM_ACCOUNT *sampw = NULL;
1123         struct passwd *unix_pw;
1124         BOOL ret;
1125
1126         unix_pw = sys_getpwuid( uid );
1127
1128         if ( !unix_pw ) {
1129                 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1130                 return algorithmic_uid_to_sid( psid, uid);
1131         }
1132
1133         if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1134                 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1135                 return NULL;
1136         }
1137
1138         become_root();
1139         ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1140         unbecome_root();
1141
1142         if ( ret )
1143                 sid_copy( psid, pdb_get_user_sid(sampw) );
1144         else {
1145                 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1146                         unix_pw->pw_name, (unsigned long)uid));
1147
1148                 algorithmic_uid_to_sid( psid, uid);
1149         }
1150
1151         pdb_free_sam(&sampw);
1152
1153         DEBUG(10,("local_uid_to_sid:  uid (%d) -> SID %s (%s).\n",
1154                 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1155
1156         return psid;
1157 }
1158
1159 /****************************************************************************
1160  Convert a SID to uid - locally.
1161 ****************************************************************************/
1162
1163 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1164 {
1165         SAM_ACCOUNT *sampw = NULL;
1166         struct passwd *unix_pw;
1167         const char *user_name;
1168
1169         *name_type = SID_NAME_UNKNOWN;
1170
1171         /*
1172          * We can only convert to a uid if this is our local
1173          * Domain SID (ie. we are the controling authority).
1174          */
1175         if (!sid_check_is_in_our_domain(psid) ) {
1176                 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1177                 return False;
1178         }
1179
1180         /* lookup the user account */
1181
1182         if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1183                 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1184                 return False;
1185         }
1186
1187         become_root();
1188         if ( !pdb_getsampwsid(sampw, psid) ) {
1189                 unbecome_root();
1190                 pdb_free_sam(&sampw);
1191                 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1192                         sid_string_static(psid)));
1193                 return False;
1194         }
1195         unbecome_root();
1196
1197         user_name = pdb_get_username(sampw);
1198
1199         unix_pw = sys_getpwnam( user_name );
1200
1201         if ( !unix_pw ) {
1202                 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1203                         user_name));
1204                 pdb_free_sam( &sampw );
1205                 return False;
1206         }
1207
1208         *puid = unix_pw->pw_uid;
1209
1210         DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1211                 (unsigned int)*puid, user_name ));
1212
1213         *name_type = SID_NAME_USER;
1214         pdb_free_sam( &sampw );
1215         return True;
1216 }
1217
1218 /****************************************************************************
1219  Convert a gid to SID - locally.
1220 ****************************************************************************/
1221
1222 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1223 {
1224         GROUP_MAP group;
1225         BOOL ret;
1226
1227         /* we don't need to disable winbindd since the gid is stored in
1228            the GROUP_MAP object */
1229
1230         /* done as root since ldap backend requires root to open a connection */
1231
1232         become_root();
1233         ret = pdb_getgrgid( &group, gid );
1234         unbecome_root();
1235
1236         if ( !ret ) {
1237
1238                 /* fallback to rid mapping if enabled */
1239
1240                 if ( lp_enable_rid_algorithm() ) {
1241                         sid_copy(psid, get_global_sam_sid());
1242                         sid_append_rid(psid, pdb_gid_to_group_rid(gid));
1243
1244                         DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1245                                 (unsigned int)gid, sid_string_static(psid)));
1246
1247                         return psid;
1248                 }
1249                 else
1250                         return NULL;
1251         }
1252
1253         sid_copy( psid, &group.sid );
1254
1255         DEBUG(10,("local_gid_to_sid:  gid (%d) -> SID %s.\n",
1256                 (unsigned int)gid, sid_string_static(psid)));
1257
1258         return psid;
1259 }
1260
1261 /****************************************************************************
1262  Convert a SID to gid - locally.
1263 ****************************************************************************/
1264
1265 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1266 {
1267         uint32 rid;
1268         GROUP_MAP group;
1269         BOOL ret;
1270
1271         *name_type = SID_NAME_UNKNOWN;
1272
1273         /* This call can enumerate group mappings for foreign sids as well.
1274            So don't check for a match against our domain SID */
1275
1276         /* we don't need to disable winbindd since the gid is stored in
1277            the GROUP_MAP object */
1278
1279         become_root();
1280         ret = pdb_getgrsid(&group, *psid);
1281         unbecome_root();
1282
1283         if ( !ret ) {
1284
1285                 /* Fallback to algorithmic rid mapping if enabled */
1286
1287                 if ( lp_enable_rid_algorithm() ) {
1288
1289                         if (!sid_check_is_in_our_domain(psid) ) {
1290                                 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1291                                 return False;
1292                         }
1293
1294                         if (!sid_peek_rid(psid, &rid)) {
1295                                 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1296                                         return False;
1297                         }
1298
1299                         DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1300
1301                         if (algorithmic_pdb_rid_is_user(rid)) {
1302                                 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1303                                 return False;
1304                         } else {
1305                                 *pgid = pdb_group_rid_to_gid(rid);
1306                                 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1307                                 return True;
1308                         }
1309                 }
1310
1311                 return False;
1312         }
1313
1314         *pgid = group.gid;
1315         *name_type = group.sid_name_use;
1316
1317         DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1318                 (unsigned int)*pgid));
1319
1320         return True;
1321 }
1322
1323 /**********************************************************************
1324  Marshall/unmarshall SAM_ACCOUNT structs.
1325  *********************************************************************/
1326
1327 #define TDB_FORMAT_STRING_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1328 #define TDB_FORMAT_STRING_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1329 #define TDB_FORMAT_STRING_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1330
1331 /**********************************************************************
1332  Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1333  *********************************************************************/
1334
1335 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1336 {
1337         return(init_sam_from_buffer_v2(sampass, buf, buflen));
1338 }
1339
1340 /**********************************************************************
1341  Intialize a BYTE buffer from a SAM_ACCOUNT struct
1342  *********************************************************************/
1343
1344 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1345 {
1346         return(init_buffer_from_sam_v2(buf, sampass, size_only));
1347 }
1348
1349
1350 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1351 {
1352
1353         /* times are stored as 32bit integer
1354            take care on system with 64bit wide time_t
1355            --SSS */
1356         uint32  logon_time,
1357                 logoff_time,
1358                 kickoff_time,
1359                 pass_last_set_time,
1360                 pass_can_change_time,
1361                 pass_must_change_time;
1362         char *username = NULL;
1363         char *domain = NULL;
1364         char *nt_username = NULL;
1365         char *dir_drive = NULL;
1366         char *unknown_str = NULL;
1367         char *munged_dial = NULL;
1368         char *fullname = NULL;
1369         char *homedir = NULL;
1370         char *logon_script = NULL;
1371         char *profile_path = NULL;
1372         char *acct_desc = NULL;
1373         char *workstations = NULL;
1374         uint32  username_len, domain_len, nt_username_len,
1375                 dir_drive_len, unknown_str_len, munged_dial_len,
1376                 fullname_len, homedir_len, logon_script_len,
1377                 profile_path_len, acct_desc_len, workstations_len;
1378
1379         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
1380         uint16  acct_ctrl, logon_divs;
1381         uint16  bad_password_count, logon_count;
1382         uint8   *hours = NULL;
1383         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1384         uint32          len = 0;
1385         uint32          lm_pw_len, nt_pw_len, hourslen;
1386         BOOL ret = True;
1387
1388         if(sampass == NULL || buf == NULL) {
1389                 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1390                 return False;
1391         }
1392
1393 /* TDB_FORMAT_STRING_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1394
1395         /* unpack the buffer into variables */
1396         len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1397                 &logon_time,                                            /* d */
1398                 &logoff_time,                                           /* d */
1399                 &kickoff_time,                                          /* d */
1400                 &pass_last_set_time,                                    /* d */
1401                 &pass_can_change_time,                                  /* d */
1402                 &pass_must_change_time,                                 /* d */
1403                 &username_len, &username,                               /* B */
1404                 &domain_len, &domain,                                   /* B */
1405                 &nt_username_len, &nt_username,                         /* B */
1406                 &fullname_len, &fullname,                               /* B */
1407                 &homedir_len, &homedir,                                 /* B */
1408                 &dir_drive_len, &dir_drive,                             /* B */
1409                 &logon_script_len, &logon_script,                       /* B */
1410                 &profile_path_len, &profile_path,                       /* B */
1411                 &acct_desc_len, &acct_desc,                             /* B */
1412                 &workstations_len, &workstations,                       /* B */
1413                 &unknown_str_len, &unknown_str,                         /* B */
1414                 &munged_dial_len, &munged_dial,                         /* B */
1415                 &user_rid,                                              /* d */
1416                 &group_rid,                                             /* d */
1417                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1418                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1419                 &acct_ctrl,                                             /* w */
1420                 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1421                 &logon_divs,                                            /* w */
1422                 &hours_len,                                             /* d */
1423                 &hourslen, &hours,                                      /* B */
1424                 &bad_password_count,                                    /* w */
1425                 &logon_count,                                           /* w */
1426                 &unknown_6);                                            /* d */
1427
1428         if (len == (uint32) -1)  {
1429                 ret = False;
1430                 goto done;
1431         }
1432
1433         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1434         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1435         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1436         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1437         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1438         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1439
1440         pdb_set_username(sampass, username, PDB_SET);
1441         pdb_set_domain(sampass, domain, PDB_SET);
1442         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1443         pdb_set_fullname(sampass, fullname, PDB_SET);
1444
1445         if (homedir) {
1446                 pdb_set_homedir(sampass, homedir, PDB_SET);
1447         }
1448         else {
1449                 pdb_set_homedir(sampass,
1450                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1451                         PDB_DEFAULT);
1452         }
1453
1454         if (dir_drive)
1455                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1456         else {
1457                 pdb_set_dir_drive(sampass,
1458                         talloc_sub_basic(sampass->mem_ctx,  username, lp_logon_drive()),
1459                         PDB_DEFAULT);
1460         }
1461
1462         if (logon_script)
1463                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1464         else {
1465                 pdb_set_logon_script(sampass,
1466                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1467                         PDB_DEFAULT);
1468         }
1469
1470         if (profile_path) {
1471                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1472         } else {
1473                 pdb_set_profile_path(sampass,
1474                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1475                         PDB_DEFAULT);
1476         }
1477
1478         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1479         pdb_set_workstations(sampass, workstations, PDB_SET);
1480         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1481
1482         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1483                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1484                         ret = False;
1485                         goto done;
1486                 }
1487         }
1488
1489         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1490                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1491                         ret = False;
1492                         goto done;
1493                 }
1494         }
1495
1496         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1497         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1498         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1499         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1500         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1501         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1502         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1503         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1504         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1505         pdb_set_hours(sampass, hours, PDB_SET);
1506
1507 done:
1508
1509         SAFE_FREE(username);
1510         SAFE_FREE(domain);
1511         SAFE_FREE(nt_username);
1512         SAFE_FREE(fullname);
1513         SAFE_FREE(homedir);
1514         SAFE_FREE(dir_drive);
1515         SAFE_FREE(logon_script);
1516         SAFE_FREE(profile_path);
1517         SAFE_FREE(acct_desc);
1518         SAFE_FREE(workstations);
1519         SAFE_FREE(munged_dial);
1520         SAFE_FREE(unknown_str);
1521         SAFE_FREE(lm_pw_ptr);
1522         SAFE_FREE(nt_pw_ptr);
1523         SAFE_FREE(hours);
1524
1525         return ret;
1526 }
1527
1528 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1529 {
1530
1531         /* times are stored as 32bit integer
1532            take care on system with 64bit wide time_t
1533            --SSS */
1534         uint32  logon_time,
1535                 logoff_time,
1536                 kickoff_time,
1537                 bad_password_time,
1538                 pass_last_set_time,
1539                 pass_can_change_time,
1540                 pass_must_change_time;
1541         char *username = NULL;
1542         char *domain = NULL;
1543         char *nt_username = NULL;
1544         char *dir_drive = NULL;
1545         char *unknown_str = NULL;
1546         char *munged_dial = NULL;
1547         char *fullname = NULL;
1548         char *homedir = NULL;
1549         char *logon_script = NULL;
1550         char *profile_path = NULL;
1551         char *acct_desc = NULL;
1552         char *workstations = NULL;
1553         uint32  username_len, domain_len, nt_username_len,
1554                 dir_drive_len, unknown_str_len, munged_dial_len,
1555                 fullname_len, homedir_len, logon_script_len,
1556                 profile_path_len, acct_desc_len, workstations_len;
1557
1558         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
1559         uint16  acct_ctrl, logon_divs;
1560         uint16  bad_password_count, logon_count;
1561         uint8   *hours = NULL;
1562         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1563         uint32          len = 0;
1564         uint32          lm_pw_len, nt_pw_len, hourslen;
1565         BOOL ret = True;
1566
1567         if(sampass == NULL || buf == NULL) {
1568                 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1569                 return False;
1570         }
1571
1572 /* TDB_FORMAT_STRING_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1573
1574         /* unpack the buffer into variables */
1575         len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1576                 &logon_time,                                            /* d */
1577                 &logoff_time,                                           /* d */
1578                 &kickoff_time,                                          /* d */
1579                 /* Change from V0 is addition of bad_password_time field. */
1580                 &bad_password_time,                                     /* d */
1581                 &pass_last_set_time,                                    /* d */
1582                 &pass_can_change_time,                                  /* d */
1583                 &pass_must_change_time,                                 /* d */
1584                 &username_len, &username,                               /* B */
1585                 &domain_len, &domain,                                   /* B */
1586                 &nt_username_len, &nt_username,                         /* B */
1587                 &fullname_len, &fullname,                               /* B */
1588                 &homedir_len, &homedir,                                 /* B */
1589                 &dir_drive_len, &dir_drive,                             /* B */
1590                 &logon_script_len, &logon_script,                       /* B */
1591                 &profile_path_len, &profile_path,                       /* B */
1592                 &acct_desc_len, &acct_desc,                             /* B */
1593                 &workstations_len, &workstations,                       /* B */
1594                 &unknown_str_len, &unknown_str,                         /* B */
1595                 &munged_dial_len, &munged_dial,                         /* B */
1596                 &user_rid,                                              /* d */
1597                 &group_rid,                                             /* d */
1598                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1599                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1600                 &acct_ctrl,                                             /* w */
1601                 &remove_me,                                             /* d */
1602                 &logon_divs,                                            /* w */
1603                 &hours_len,                                             /* d */
1604                 &hourslen, &hours,                                      /* B */
1605                 &bad_password_count,                                    /* w */
1606                 &logon_count,                                           /* w */
1607                 &unknown_6);                                            /* d */
1608
1609         if (len == (uint32) -1)  {
1610                 ret = False;
1611                 goto done;
1612         }
1613
1614         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1615         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1616         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1617
1618         /* Change from V0 is addition of bad_password_time field. */
1619         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1620         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1621         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1622         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1623
1624         pdb_set_username(sampass, username, PDB_SET);
1625         pdb_set_domain(sampass, domain, PDB_SET);
1626         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1627         pdb_set_fullname(sampass, fullname, PDB_SET);
1628
1629         if (homedir) {
1630                 pdb_set_homedir(sampass, homedir, PDB_SET);
1631         }
1632         else {
1633                 pdb_set_homedir(sampass,
1634                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1635                         PDB_DEFAULT);
1636         }
1637
1638         if (dir_drive)
1639                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1640         else {
1641                 pdb_set_dir_drive(sampass,
1642                         talloc_sub_basic(sampass->mem_ctx,  username, lp_logon_drive()),
1643                         PDB_DEFAULT);
1644         }
1645
1646         if (logon_script)
1647                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1648         else {
1649                 pdb_set_logon_script(sampass,
1650                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1651                         PDB_DEFAULT);
1652         }
1653
1654         if (profile_path) {
1655                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1656         } else {
1657                 pdb_set_profile_path(sampass,
1658                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1659                         PDB_DEFAULT);
1660         }
1661
1662         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1663         pdb_set_workstations(sampass, workstations, PDB_SET);
1664         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1665
1666         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1667                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1668                         ret = False;
1669                         goto done;
1670                 }
1671         }
1672
1673         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1674                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1675                         ret = False;
1676                         goto done;
1677                 }
1678         }
1679
1680         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1681
1682         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1683         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1684         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1685         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1686         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1687         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1688         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1689         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1690         pdb_set_hours(sampass, hours, PDB_SET);
1691
1692 done:
1693
1694         SAFE_FREE(username);
1695         SAFE_FREE(domain);
1696         SAFE_FREE(nt_username);
1697         SAFE_FREE(fullname);
1698         SAFE_FREE(homedir);
1699         SAFE_FREE(dir_drive);
1700         SAFE_FREE(logon_script);
1701         SAFE_FREE(profile_path);
1702         SAFE_FREE(acct_desc);
1703         SAFE_FREE(workstations);
1704         SAFE_FREE(munged_dial);
1705         SAFE_FREE(unknown_str);
1706         SAFE_FREE(lm_pw_ptr);
1707         SAFE_FREE(nt_pw_ptr);
1708         SAFE_FREE(hours);
1709
1710         return ret;
1711 }
1712
1713
1714 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1715 {
1716
1717         /* times are stored as 32bit integer
1718            take care on system with 64bit wide time_t
1719            --SSS */
1720         uint32  logon_time,
1721                 logoff_time,
1722                 kickoff_time,
1723                 bad_password_time,
1724                 pass_last_set_time,
1725                 pass_can_change_time,
1726                 pass_must_change_time;
1727         char *username = NULL;
1728         char *domain = NULL;
1729         char *nt_username = NULL;
1730         char *dir_drive = NULL;
1731         char *unknown_str = NULL;
1732         char *munged_dial = NULL;
1733         char *fullname = NULL;
1734         char *homedir = NULL;
1735         char *logon_script = NULL;
1736         char *profile_path = NULL;
1737         char *acct_desc = NULL;
1738         char *workstations = NULL;
1739         uint32  username_len, domain_len, nt_username_len,
1740                 dir_drive_len, unknown_str_len, munged_dial_len,
1741                 fullname_len, homedir_len, logon_script_len,
1742                 profile_path_len, acct_desc_len, workstations_len;
1743
1744         uint32  user_rid, group_rid, hours_len, unknown_6;
1745         uint16  acct_ctrl, logon_divs;
1746         uint16  bad_password_count, logon_count;
1747         uint8   *hours = NULL;
1748         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1749         uint32          len = 0;
1750         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1751         uint32 pwHistLen = 0;
1752         BOOL ret = True;
1753         fstring tmpstring;
1754         BOOL expand_explicit = lp_passdb_expand_explicit();
1755
1756         if(sampass == NULL || buf == NULL) {
1757                 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1758                 return False;
1759         }
1760
1761 /* TDB_FORMAT_STRING_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1762
1763         /* unpack the buffer into variables */
1764         len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1765                 &logon_time,                                            /* d */
1766                 &logoff_time,                                           /* d */
1767                 &kickoff_time,                                          /* d */
1768                 &bad_password_time,                                     /* d */
1769                 &pass_last_set_time,                                    /* d */
1770                 &pass_can_change_time,                                  /* d */
1771                 &pass_must_change_time,                                 /* d */
1772                 &username_len, &username,                               /* B */
1773                 &domain_len, &domain,                                   /* B */
1774                 &nt_username_len, &nt_username,                         /* B */
1775                 &fullname_len, &fullname,                               /* B */
1776                 &homedir_len, &homedir,                                 /* B */
1777                 &dir_drive_len, &dir_drive,                             /* B */
1778                 &logon_script_len, &logon_script,                       /* B */
1779                 &profile_path_len, &profile_path,                       /* B */
1780                 &acct_desc_len, &acct_desc,                             /* B */
1781                 &workstations_len, &workstations,                       /* B */
1782                 &unknown_str_len, &unknown_str,                         /* B */
1783                 &munged_dial_len, &munged_dial,                         /* B */
1784                 &user_rid,                                              /* d */
1785                 &group_rid,                                             /* d */
1786                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1787                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1788                 /* Change from V1 is addition of password history field. */
1789                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1790                 &acct_ctrl,                                             /* w */
1791                 /* Also "remove_me" field was removed. */
1792                 &logon_divs,                                            /* w */
1793                 &hours_len,                                             /* d */
1794                 &hourslen, &hours,                                      /* B */
1795                 &bad_password_count,                                    /* w */
1796                 &logon_count,                                           /* w */
1797                 &unknown_6);                                            /* d */
1798
1799         if (len == (uint32) -1)  {
1800                 ret = False;
1801                 goto done;
1802         }
1803
1804         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1805         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1806         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1807         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1808         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1809         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1810         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1811
1812         pdb_set_username(sampass, username, PDB_SET);
1813         pdb_set_domain(sampass, domain, PDB_SET);
1814         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1815         pdb_set_fullname(sampass, fullname, PDB_SET);
1816
1817         if (homedir) {
1818                 fstrcpy( tmpstring, homedir );
1819                 if (expand_explicit) {
1820                         standard_sub_basic( username, tmpstring,
1821                                             sizeof(tmpstring) );
1822                 }
1823                 pdb_set_homedir(sampass, tmpstring, PDB_SET);
1824         }
1825         else {
1826                 pdb_set_homedir(sampass,
1827                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1828                         PDB_DEFAULT);
1829         }
1830
1831         if (dir_drive)
1832                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1833         else
1834                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1835
1836         if (logon_script) {
1837                 fstrcpy( tmpstring, logon_script );
1838                 if (expand_explicit) {
1839                         standard_sub_basic( username, tmpstring,
1840                                             sizeof(tmpstring) );
1841                 }
1842                 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
1843         }
1844         else {
1845                 pdb_set_logon_script(sampass,
1846                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1847                         PDB_DEFAULT);
1848         }
1849
1850         if (profile_path) {
1851                 fstrcpy( tmpstring, profile_path );
1852                 if (expand_explicit) {
1853                         standard_sub_basic( username, tmpstring,
1854                                             sizeof(tmpstring) );
1855                 }
1856                 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
1857         }
1858         else {
1859                 pdb_set_profile_path(sampass,
1860                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1861                         PDB_DEFAULT);
1862         }
1863
1864         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1865         pdb_set_workstations(sampass, workstations, PDB_SET);
1866         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1867
1868         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1869                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1870                         ret = False;
1871                         goto done;
1872                 }
1873         }
1874
1875         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1876                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1877                         ret = False;
1878                         goto done;
1879                 }
1880         }
1881
1882         /* Change from V1 is addition of password history field. */
1883         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1884         if (pwHistLen) {
1885                 uint8 *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1886                 if (!pw_hist) {
1887                         ret = False;
1888                         goto done;
1889                 }
1890                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1891                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1892                         int i;
1893                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1894                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1895                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1896                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1897                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1898                                         PW_HISTORY_ENTRY_LEN);
1899                         }
1900                 }
1901                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1902                         SAFE_FREE(pw_hist);
1903                         ret = False;
1904                         goto done;
1905                 }
1906                 SAFE_FREE(pw_hist);
1907         } else {
1908                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1909         }
1910
1911         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1912         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1913         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1914         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1915         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1916         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1917         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1918         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1919         pdb_set_hours(sampass, hours, PDB_SET);
1920
1921 done:
1922
1923         SAFE_FREE(username);
1924         SAFE_FREE(domain);
1925         SAFE_FREE(nt_username);
1926         SAFE_FREE(fullname);
1927         SAFE_FREE(homedir);
1928         SAFE_FREE(dir_drive);
1929         SAFE_FREE(logon_script);
1930         SAFE_FREE(profile_path);
1931         SAFE_FREE(acct_desc);
1932         SAFE_FREE(workstations);
1933         SAFE_FREE(munged_dial);
1934         SAFE_FREE(unknown_str);
1935         SAFE_FREE(lm_pw_ptr);
1936         SAFE_FREE(nt_pw_ptr);
1937         SAFE_FREE(nt_pw_hist_ptr);
1938         SAFE_FREE(hours);
1939
1940         return ret;
1941 }
1942
1943 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1944 {
1945         size_t len, buflen;
1946
1947         /* times are stored as 32bit integer
1948            take care on system with 64bit wide time_t
1949            --SSS */
1950         uint32  logon_time,
1951                 logoff_time,
1952                 kickoff_time,
1953                 bad_password_time,
1954                 pass_last_set_time,
1955                 pass_can_change_time,
1956                 pass_must_change_time;
1957
1958         uint32  user_rid, group_rid;
1959
1960         const char *username;
1961         const char *domain;
1962         const char *nt_username;
1963         const char *dir_drive;
1964         const char *unknown_str;
1965         const char *munged_dial;
1966         const char *fullname;
1967         const char *homedir;
1968         const char *logon_script;
1969         const char *profile_path;
1970         const char *acct_desc;
1971         const char *workstations;
1972         uint32  username_len, domain_len, nt_username_len,
1973                 dir_drive_len, unknown_str_len, munged_dial_len,
1974                 fullname_len, homedir_len, logon_script_len,
1975                 profile_path_len, acct_desc_len, workstations_len;
1976
1977         const uint8 *lm_pw;
1978         const uint8 *nt_pw;
1979         const uint8 *nt_pw_hist;
1980         uint32  lm_pw_len = 16;
1981         uint32  nt_pw_len = 16;
1982         uint32  nt_pw_hist_len;
1983         uint32 pwHistLen = 0;
1984
1985         /* do we have a valid SAM_ACCOUNT pointer? */
1986         if (sampass == NULL) {
1987                 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1988                 return -1;
1989         }
1990
1991         *buf = NULL;
1992         buflen = 0;
1993
1994         logon_time = (uint32)pdb_get_logon_time(sampass);
1995         logoff_time = (uint32)pdb_get_logoff_time(sampass);
1996         kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
1997         bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
1998         pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
1999         pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
2000         pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
2001
2002         user_rid = pdb_get_user_rid(sampass);
2003         group_rid = pdb_get_group_rid(sampass);
2004
2005         username = pdb_get_username(sampass);
2006         if (username) {
2007                 username_len = strlen(username) +1;
2008         } else {
2009                 username_len = 0;
2010         }
2011
2012         domain = pdb_get_domain(sampass);
2013         if (domain) {
2014                 domain_len = strlen(domain) +1;
2015         } else {
2016                 domain_len = 0;
2017         }
2018
2019         nt_username = pdb_get_nt_username(sampass);
2020         if (nt_username) {
2021                 nt_username_len = strlen(nt_username) +1;
2022         } else {
2023                 nt_username_len = 0;
2024         }
2025
2026         fullname = pdb_get_fullname(sampass);
2027         if (fullname) {
2028                 fullname_len = strlen(fullname) +1;
2029         } else {
2030                 fullname_len = 0;
2031         }
2032
2033         /*
2034          * Only updates fields which have been set (not defaults from smb.conf)
2035          */
2036
2037         if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2038                 dir_drive = pdb_get_dir_drive(sampass);
2039         } else {
2040                 dir_drive = NULL;
2041         }
2042         if (dir_drive) {
2043                 dir_drive_len = strlen(dir_drive) +1;
2044         } else {
2045                 dir_drive_len = 0;
2046         }
2047
2048         if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2049                 homedir = pdb_get_homedir(sampass);
2050         } else {
2051                 homedir = NULL;
2052         }
2053         if (homedir) {
2054                 homedir_len = strlen(homedir) +1;
2055         } else {
2056                 homedir_len = 0;
2057         }
2058
2059         if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2060                 logon_script = pdb_get_logon_script(sampass);
2061         } else {
2062                 logon_script = NULL;
2063         }
2064         if (logon_script) {
2065                 logon_script_len = strlen(logon_script) +1;
2066         } else {
2067                 logon_script_len = 0;
2068         }
2069
2070         if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2071                 profile_path = pdb_get_profile_path(sampass);
2072         } else {
2073                 profile_path = NULL;
2074         }
2075         if (profile_path) {
2076                 profile_path_len = strlen(profile_path) +1;
2077         } else {
2078                 profile_path_len = 0;
2079         }
2080
2081         lm_pw = pdb_get_lanman_passwd(sampass);
2082         if (!lm_pw) {
2083                 lm_pw_len = 0;
2084         }
2085
2086         nt_pw = pdb_get_nt_passwd(sampass);
2087         if (!nt_pw) {
2088                 nt_pw_len = 0;
2089         }
2090
2091         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
2092         nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
2093         if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2094                 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2095         } else {
2096                 nt_pw_hist_len = 0;
2097         }
2098
2099         acct_desc = pdb_get_acct_desc(sampass);
2100         if (acct_desc) {
2101                 acct_desc_len = strlen(acct_desc) +1;
2102         } else {
2103                 acct_desc_len = 0;
2104         }
2105
2106         workstations = pdb_get_workstations(sampass);
2107         if (workstations) {
2108                 workstations_len = strlen(workstations) +1;
2109         } else {
2110                 workstations_len = 0;
2111         }
2112
2113         unknown_str = NULL;
2114         unknown_str_len = 0;
2115
2116         munged_dial = pdb_get_munged_dial(sampass);
2117         if (munged_dial) {
2118                 munged_dial_len = strlen(munged_dial) +1;
2119         } else {
2120                 munged_dial_len = 0;
2121         }
2122
2123 /* TDB_FORMAT_STRING_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2124
2125         /* one time to get the size needed */
2126         len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING_V2,
2127                 logon_time,                             /* d */
2128                 logoff_time,                            /* d */
2129                 kickoff_time,                           /* d */
2130                 bad_password_time,                      /* d */
2131                 pass_last_set_time,                     /* d */
2132                 pass_can_change_time,                   /* d */
2133                 pass_must_change_time,                  /* d */
2134                 username_len, username,                 /* B */
2135                 domain_len, domain,                     /* B */
2136                 nt_username_len, nt_username,           /* B */
2137                 fullname_len, fullname,                 /* B */
2138                 homedir_len, homedir,                   /* B */
2139                 dir_drive_len, dir_drive,               /* B */
2140                 logon_script_len, logon_script,         /* B */
2141                 profile_path_len, profile_path,         /* B */
2142                 acct_desc_len, acct_desc,               /* B */
2143                 workstations_len, workstations,         /* B */
2144                 unknown_str_len, unknown_str,           /* B */
2145                 munged_dial_len, munged_dial,           /* B */
2146                 user_rid,                               /* d */
2147                 group_rid,                              /* d */
2148                 lm_pw_len, lm_pw,                       /* B */
2149                 nt_pw_len, nt_pw,                       /* B */
2150                 nt_pw_hist_len, nt_pw_hist,             /* B */
2151                 pdb_get_acct_ctrl(sampass),             /* w */
2152                 pdb_get_logon_divs(sampass),            /* w */
2153                 pdb_get_hours_len(sampass),             /* d */
2154                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
2155                 pdb_get_bad_password_count(sampass),    /* w */
2156                 pdb_get_logon_count(sampass),           /* w */
2157                 pdb_get_unknown_6(sampass));            /* d */
2158
2159         if (size_only) {
2160                 return buflen;
2161         }
2162
2163         /* malloc the space needed */
2164         if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2165                 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2166                 return (-1);
2167         }
2168
2169         /* now for the real call to tdb_pack() */
2170         buflen = tdb_pack((char *)*buf, len,  TDB_FORMAT_STRING_V2,
2171                 logon_time,                             /* d */
2172                 logoff_time,                            /* d */
2173                 kickoff_time,                           /* d */
2174                 bad_password_time,                      /* d */
2175                 pass_last_set_time,                     /* d */
2176                 pass_can_change_time,                   /* d */
2177                 pass_must_change_time,                  /* d */
2178                 username_len, username,                 /* B */
2179                 domain_len, domain,                     /* B */
2180                 nt_username_len, nt_username,           /* B */
2181                 fullname_len, fullname,                 /* B */
2182                 homedir_len, homedir,                   /* B */
2183                 dir_drive_len, dir_drive,               /* B */
2184                 logon_script_len, logon_script,         /* B */
2185                 profile_path_len, profile_path,         /* B */
2186                 acct_desc_len, acct_desc,               /* B */
2187                 workstations_len, workstations,         /* B */
2188                 unknown_str_len, unknown_str,           /* B */
2189                 munged_dial_len, munged_dial,           /* B */
2190                 user_rid,                               /* d */
2191                 group_rid,                              /* d */
2192                 lm_pw_len, lm_pw,                       /* B */
2193                 nt_pw_len, nt_pw,                       /* B */
2194                 nt_pw_hist_len, nt_pw_hist,             /* B */
2195                 pdb_get_acct_ctrl(sampass),             /* w */
2196                 pdb_get_logon_divs(sampass),            /* w */
2197                 pdb_get_hours_len(sampass),             /* d */
2198                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
2199                 pdb_get_bad_password_count(sampass),    /* w */
2200                 pdb_get_logon_count(sampass),           /* w */
2201                 pdb_get_unknown_6(sampass));            /* d */
2202
2203         /* check to make sure we got it correct */
2204         if (buflen != len) {
2205                 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2206                           (unsigned long)buflen, (unsigned long)len));
2207                 /* error */
2208                 SAFE_FREE (*buf);
2209                 return (-1);
2210         }
2211
2212         return (buflen);
2213 }
2214
2215 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2216 {
2217         BOOL result;
2218         uint8 *buf;
2219         int len;
2220
2221         if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2222                 return False;
2223
2224         len = init_buffer_from_sam_v2(&buf, src, False);
2225
2226         if (len == -1)
2227                 return False;
2228
2229         result = init_sam_from_buffer_v2(*dst, buf, len);
2230         (*dst)->methods = src->methods;
2231
2232         free(buf);
2233
2234         return result;
2235 }
2236
2237 /**********************************************************************
2238 **********************************************************************/
2239
2240 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2241 {
2242         uid_t u_low, u_high;
2243         gid_t g_low, g_high;
2244
2245         if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2246                 return False;
2247         }
2248
2249         *low  = (u_low < g_low)   ? u_low  : g_low;
2250         *high = (u_high < g_high) ? u_high : g_high;
2251
2252         return True;
2253 }
2254
2255 /******************************************************************
2256  Get the the non-algorithmic RID range if idmap range are defined
2257 ******************************************************************/
2258
2259 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2260 {
2261         uint32 id_low, id_high;
2262
2263         if (!lp_enable_rid_algorithm()) {
2264                 *low = BASE_RID;
2265                 *high = (uint32)-1;
2266         }
2267
2268         if (!get_free_ugid_range(&id_low, &id_high)) {
2269                 return False;
2270         }
2271
2272         *low = algorithmic_pdb_uid_to_user_rid(id_low);
2273         if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2274                 *high = (uint32)-1;
2275         } else {
2276                 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2277         }
2278
2279         return True;
2280 }
2281
2282 /*********************************************************************
2283  Update the bad password count checking the AP_RESET_COUNT_TIME
2284 *********************************************************************/
2285
2286 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2287 {
2288         time_t LastBadPassword;
2289         uint16 BadPasswordCount;
2290         uint32 resettime;
2291
2292         if (!sampass) return False;
2293
2294         BadPasswordCount = pdb_get_bad_password_count(sampass);
2295         if (!BadPasswordCount) {
2296                 DEBUG(9, ("No bad password attempts.\n"));
2297                 return True;
2298         }
2299
2300         if (!pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime)) {
2301                 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2302                 return False;
2303         }
2304
2305         /* First, check if there is a reset time to compare */
2306         if ((resettime == (uint32) -1) || (resettime == 0)) {
2307                 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2308                 return True;
2309         }
2310
2311         LastBadPassword = pdb_get_bad_password_time(sampass);
2312         DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2313                    (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2314         if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2315                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2316                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2317                 if (updated) {
2318                         *updated = True;
2319                 }
2320         }
2321
2322         return True;
2323 }
2324
2325 /*********************************************************************
2326  Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2327 *********************************************************************/
2328
2329 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2330 {
2331         uint32 duration;
2332         time_t LastBadPassword;
2333
2334         if (!sampass) return False;
2335
2336         if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2337                 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2338                         pdb_get_username(sampass)));
2339                 return True;
2340         }
2341
2342         if (!pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2343                 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2344                 return False;
2345         }
2346
2347         /* First, check if there is a duration to compare */
2348         if ((duration == (uint32) -1)  || (duration == 0)) {
2349                 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2350                 return True;
2351         }
2352
2353         LastBadPassword = pdb_get_bad_password_time(sampass);
2354         DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2355                   pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2356
2357         if (LastBadPassword == (time_t)0) {
2358                 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2359 bad password time. Leaving locked out.\n",
2360                         pdb_get_username(sampass) ));
2361                         return True;
2362         }
2363
2364         if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2365                 pdb_set_acct_ctrl(sampass,
2366                                   pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2367                                   PDB_CHANGED);
2368                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2369                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2370                 if (updated) {
2371                         *updated = True;
2372                 }
2373         }
2374
2375         return True;
2376 }
2377
2378 /*********************************************************************
2379  Increment the bad_password_count
2380 *********************************************************************/
2381
2382 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2383 {
2384         uint32 account_policy_lockout;
2385         BOOL autolock_updated = False, badpw_updated = False;
2386         BOOL ret;
2387
2388         if (!sampass)
2389                 return False;
2390
2391         /* Retrieve the account lockout policy */
2392         become_root();
2393         ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2394         unbecome_root();
2395         if ( !ret ) {
2396                 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2397                 return False;
2398         }
2399
2400         /* If there is no policy, we don't need to continue checking */
2401         if (!account_policy_lockout) {
2402                 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2403                 return True;
2404         }
2405
2406         /* Check if the autolock needs to be cleared */
2407         if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2408                 return False;
2409
2410         /* Check if the badpw count needs to be reset */
2411         if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2412                 return False;
2413
2414         /*
2415           Ok, now we can assume that any resetting that needs to be
2416           done has been done, and just get on with incrementing
2417           and autolocking if necessary
2418         */
2419
2420         pdb_set_bad_password_count(sampass,
2421                                    pdb_get_bad_password_count(sampass)+1,
2422                                    PDB_CHANGED);
2423         pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2424
2425
2426         if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2427                 return True;
2428
2429         if (!pdb_set_acct_ctrl(sampass,
2430                                pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2431                                PDB_CHANGED)) {
2432                 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2433                 return False;
2434         }
2435
2436         return True;
2437 }