source3/passdb/passdb.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Jeremy Allison                 1996-2001
   5    Copyright (C) Luke Kenneth Casson Leighton   1996-1998
   6    Copyright (C) Gerald (Jerry) Carter          2000-2001
   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); /* 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.logon_time            = (time_t)0;
  64         user->private.pass_last_set_time    = (time_t)0;
  65         user->private.pass_can_change_time  = (time_t)0;
  66         user->private.logoff_time           =
  67         user->private.kickoff_time          =
  68         user->private.pass_must_change_time = get_time_t_max();
  69         user->private.fields_present        = 0x00ffffff;
  70         user->private.logon_divs = 168;         /* hours per week */
  71         user->private.hours_len = 21;           /* 21 times 8 bits = 168 */
  72         memset(user->private.hours, 0xff, user->private.hours_len); /* available at all hours */
  73         user->private.bad_password_count = 0;
  74         user->private.logon_count = 0;
  75         user->private.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.username = "";
  81         user->private.domain = "";
  82         user->private.nt_username = "";
  83         user->private.full_name = "";
  84         user->private.home_dir = "";
  85         user->private.logon_script = "";
  86         user->private.profile_path = "";
  87         user->private.acct_desc = "";
  88         user->private.workstations = "";
  89         user->private.unknown_str = "";
  90         user->private.munged_dial = "";
  91
  92         user->private.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.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.lm_pw));
 107                 data_blob_clear_free(&((*user)->private.nt_pw));
 108
 109                 if((*user)->private.plaintext_pw!=NULL)
 110                         memset((*user)->private.plaintext_pw,'\0',strlen((*user)->private.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.lm_pw));
 400         data_blob_clear_free(&(user->private.nt_pw));
 401         if (user->private.plaintext_pw!=NULL)
 402                 memset(user->private.plaintext_pw,'\0',strlen(user->private.plaintext_pw));
 403
 404         if (user->private.backend_private_data && user->private.backend_private_data_free_fn) {
 405                 user->private.backend_private_data_free_fn(&user->private.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(p[i]);
 570                 lonybble = toupper(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(p[i]);
 620                 lonybble = toupper(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  Convert a rid into a name. Used in the lookup SID rpc.
 736  ********************************************************************/
 737
 738 BOOL local_lookup_sid(const DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
 739 {
 740         uint32 rid;
 741         SAM_ACCOUNT *sam_account = NULL;
 742         GROUP_MAP map;
 743         BOOL ret;
 744
 745         if (sid_equal(get_global_sam_sid(), sid)) {
 746                 *psid_name_use = SID_NAME_DOMAIN;
 747                 fstrcpy(name, "");
 748                 DEBUG(5,("local_lookup_sid: SID is our own domain-sid: %s.\n",
 749                         sid_string_static(sid)));
 750                 return True;
 751         }
 752
 753         if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)){
 754                 DEBUG(0,("local_lookup_sid: sid_peek_check_rid return False! SID: %s\n",
 755                         sid_string_static(&map.sid)));
 756                 return False;
 757         }
 758         *psid_name_use = SID_NAME_UNKNOWN;
 759
 760         DEBUG(5,("local_lookup_sid: looking up RID %u.\n", (unsigned int)rid));
 761
 762
 763         /* see if the passdb can help us with the name of the user */
 764         if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
 765                 return False;
 766         }
 767
 768         /* BEING ROOT BLLOCK */
 769         become_root();
 770         if (pdb_getsampwsid(sam_account, sid)) {
 771                 unbecome_root();                        /* -----> EXIT BECOME_ROOT() */
 772                 fstrcpy(name, pdb_get_username(sam_account));
 773                 *psid_name_use = SID_NAME_USER;
 774
 775                 pdb_free_sam(&sam_account);
 776
 777                 return True;
 778         }
 779         pdb_free_sam(&sam_account);
 780
 781         ret = pdb_getgrsid(&map, *sid);
 782         unbecome_root();
 783         /* END BECOME_ROOT BLOCK */
 784
 785         if ( ret ) {
 786                 if (map.gid!=(gid_t)-1) {
 787                         DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
 788                 } else {
 789                         DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid.  Returning name.\n", map.nt_name));
 790                 }
 791
 792                 fstrcpy(name, map.nt_name);
 793                 *psid_name_use = map.sid_name_use;
 794                 return True;
 795         }
 796
 797         if (rid == DOMAIN_USER_RID_ADMIN) {
 798                 *psid_name_use = SID_NAME_USER;
 799                 fstrcpy(name, "Administrator");
 800                 return True;
 801         }
 802
 803         if (algorithmic_pdb_rid_is_user(rid)) {
 804                 uid_t uid;
 805                 struct passwd *pw = NULL;
 806
 807                 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
 808
 809                 uid = algorithmic_pdb_user_rid_to_uid(rid);
 810                 pw = sys_getpwuid( uid );
 811
 812                 DEBUG(5,("local_lookup_sid: looking up uid %u %s\n", (unsigned int)uid,
 813                          pw ? "succeeded" : "failed" ));
 814
 815                 if ( !pw )
 816                         fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
 817                 else
 818                         fstrcpy( name, pw->pw_name );
 819
 820                 DEBUG(5,("local_lookup_sid: found user %s for rid %u\n", name,
 821                          (unsigned int)rid ));
 822
 823                 *psid_name_use = SID_NAME_USER;
 824
 825                 return ( pw != NULL );
 826         } else {
 827                 gid_t gid;
 828                 struct group *gr;
 829
 830                 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
 831
 832                 gid = pdb_group_rid_to_gid(rid);
 833                 gr = getgrgid(gid);
 834
 835                 *psid_name_use = SID_NAME_ALIAS;
 836
 837                 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
 838                          gr ? "succeeded" : "failed" ));
 839
 840                 if( !gr )
 841                         fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
 842                 else
 843                         fstrcpy( name, gr->gr_name);
 844
 845                 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
 846                          (unsigned int)rid ));
 847
 848                 /* assume algorithmic groups are domain global groups */
 849
 850                 *psid_name_use = SID_NAME_DOM_GRP;
 851
 852                 return ( gr != NULL );
 853         }
 854 }
 855
 856 /*******************************************************************
 857  Convert a name into a SID. Used in the lookup name rpc.
 858  ********************************************************************/
 859
 860 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
 861 {
 862         DOM_SID local_sid;
 863         DOM_SID sid;
 864         fstring user;
 865         SAM_ACCOUNT *sam_account = NULL;
 866         struct group *grp;
 867         GROUP_MAP map;
 868
 869         *psid_name_use = SID_NAME_UNKNOWN;
 870
 871         /*
 872          * user may be quoted a const string, and map_username and
 873          * friends can modify it. Make a modifiable copy. JRA.
 874          */
 875
 876         fstrcpy(user, c_user);
 877
 878         sid_copy(&local_sid, get_global_sam_sid());
 879
 880         if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
 881                 fstring sid_str;
 882                 sid_copy( psid, &sid);
 883                 sid_to_string(sid_str, &sid);
 884                 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
 885                         (unsigned int)*psid_name_use ));
 886                 return True;
 887         }
 888
 889         (void)map_username(user);
 890
 891         if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
 892                 return False;
 893         }
 894
 895         /* BEGIN ROOT BLOCK */
 896
 897         become_root();
 898         if (pdb_getsampwnam(sam_account, user)) {
 899                 unbecome_root();
 900                 sid_copy(psid, pdb_get_user_sid(sam_account));
 901                 *psid_name_use = SID_NAME_USER;
 902
 903                 pdb_free_sam(&sam_account);
 904                 return True;
 905         }
 906
 907         pdb_free_sam(&sam_account);
 908
 909         /*
 910          * Maybe it was a group ?
 911          */
 912
 913         /* check if it's a mapped group */
 914         if (pdb_getgrnam(&map, user)) {
 915                 /* yes it's a mapped group */
 916                 sid_copy(&local_sid, &map.sid);
 917                 *psid_name_use = map.sid_name_use;
 918         } else {
 919                 /* it's not a mapped group */
 920                 grp = getgrnam(user);
 921                 if(!grp) {
 922                         unbecome_root();                /* ---> exit form block */
 923                         return False;
 924                 }
 925
 926                 /*
 927                  *check if it's mapped, if it is reply it doesn't exist
 928                  *
 929                  * that's to prevent this case:
 930                  *
 931                  * unix group ug is mapped to nt group ng
 932                  * someone does a lookup on ug
 933                  * we must not reply as it doesn't "exist" anymore
 934                  * for NT. For NT only ng exists.
 935                  * JFM, 30/11/2001
 936                  */
 937
 938                 if (pdb_getgrgid(&map, grp->gr_gid)){
 939                         unbecome_root();                /* ---> exit form block */
 940                         return False;
 941                 }
 942
 943                 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
 944                 *psid_name_use = SID_NAME_ALIAS;
 945         }
 946         unbecome_root();
 947         /* END ROOT BLOCK */
 948
 949         sid_copy( psid, &local_sid);
 950
 951         return True;
 952 }
 953
 954 /*************************************************************
 955  Change a password entry in the local smbpasswd file.
 956  *************************************************************/
 957
 958 BOOL local_password_change(const char *user_name, int local_flags,
 959                            const char *new_passwd,
 960                            char *err_str, size_t err_str_len,
 961                            char *msg_str, size_t msg_str_len)
 962 {
 963         SAM_ACCOUNT     *sam_pass=NULL;
 964         uint16 other_acb;
 965
 966         *err_str = '\0';
 967         *msg_str = '\0';
 968
 969         /* Get the smb passwd entry for this user */
 970         pdb_init_sam(&sam_pass);
 971
 972         become_root();
 973         if(!pdb_getsampwnam(sam_pass, user_name)) {
 974                 unbecome_root();
 975                 pdb_free_sam(&sam_pass);
 976
 977                 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
 978                         /* Might not exist in /etc/passwd.  Use rid algorithm here */
 979                         if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
 980                                 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);
 981                                 return False;
 982                         }
 983                 } else {
 984                         slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
 985                         return False;
 986                 }
 987         } else {
 988                 unbecome_root();
 989                 /* the entry already existed */
 990                 local_flags &= ~LOCAL_ADD_USER;
 991         }
 992
 993         /* the 'other' acb bits not being changed here */
 994         other_acb =  (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
 995         if (local_flags & LOCAL_TRUST_ACCOUNT) {
 996                 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
 997                         slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
 998                         pdb_free_sam(&sam_pass);
 999                         return False;
1000                 }
1001         } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
1002                 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
1003                         slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
1004                         pdb_free_sam(&sam_pass);
1005                         return False;
1006                 }
1007         } else {
1008                 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1009                         slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1010                         pdb_free_sam(&sam_pass);
1011                         return False;
1012                 }
1013         }
1014
1015         /*
1016          * We are root - just write the new password
1017          * and the valid last change time.
1018          */
1019
1020         if (local_flags & LOCAL_DISABLE_USER) {
1021                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1022                         slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1023                         pdb_free_sam(&sam_pass);
1024                         return False;
1025                 }
1026         } else if (local_flags & LOCAL_ENABLE_USER) {
1027                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1028                         slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1029                         pdb_free_sam(&sam_pass);
1030                         return False;
1031                 }
1032         }
1033
1034         if (local_flags & LOCAL_SET_NO_PASSWORD) {
1035                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1036                         slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1037                         pdb_free_sam(&sam_pass);
1038                         return False;
1039                 }
1040         } else if (local_flags & LOCAL_SET_PASSWORD) {
1041                 /*
1042                  * If we're dealing with setting a completely empty user account
1043                  * ie. One with a password of 'XXXX', but not set disabled (like
1044                  * an account created from scratch) then if the old password was
1045                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1046                  * We remove that as we're giving this user their first password
1047                  * and the decision hasn't really been made to disable them (ie.
1048                  * don't create them disabled). JRA.
1049                  */
1050                 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1051                         if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1052                                 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1053                                 pdb_free_sam(&sam_pass);
1054                                 return False;
1055                         }
1056                 }
1057                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1058                         slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1059                         pdb_free_sam(&sam_pass);
1060                         return False;
1061                 }
1062
1063                 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1064                         slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1065                         pdb_free_sam(&sam_pass);
1066                         return False;
1067                 }
1068         }
1069
1070         if (local_flags & LOCAL_ADD_USER) {
1071                 if (pdb_add_sam_account(sam_pass)) {
1072                         slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1073                         pdb_free_sam(&sam_pass);
1074                         return True;
1075                 } else {
1076                         slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1077                         pdb_free_sam(&sam_pass);
1078                         return False;
1079                 }
1080         } else if (local_flags & LOCAL_DELETE_USER) {
1081                 if (!pdb_delete_sam_account(sam_pass)) {
1082                         slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1083                         pdb_free_sam(&sam_pass);
1084                         return False;
1085                 }
1086                 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1087         } else {
1088                 if(!pdb_update_sam_account(sam_pass)) {
1089                         slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1090                         pdb_free_sam(&sam_pass);
1091                         return False;
1092                 }
1093                 if(local_flags & LOCAL_DISABLE_USER)
1094                         slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1095                 else if (local_flags & LOCAL_ENABLE_USER)
1096                         slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1097                 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1098                         slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1099         }
1100
1101         pdb_free_sam(&sam_pass);
1102         return True;
1103 }
1104
1105 /****************************************************************************
1106  Convert a uid to SID - algorithmic.
1107 ****************************************************************************/
1108
1109 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1110 {
1111         if ( !lp_enable_rid_algorithm() )
1112                 return NULL;
1113
1114         DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1115         sid_copy( psid, get_global_sam_sid() );
1116         sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
1117         DEBUG(10,("algorithmic_uid_to_sid:  uid (%d) -> SID %s.\n",
1118                 (unsigned int)uid, sid_string_static(psid) ));
1119
1120         return psid;
1121 }
1122
1123 /****************************************************************************
1124  Convert a uid to SID - locally.
1125 ****************************************************************************/
1126
1127 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1128 {
1129         SAM_ACCOUNT *sampw = NULL;
1130         struct passwd *unix_pw;
1131         BOOL ret;
1132
1133         unix_pw = sys_getpwuid( uid );
1134
1135         if ( !unix_pw ) {
1136                 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1137                 return algorithmic_uid_to_sid( psid, uid);
1138         }
1139
1140         if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1141                 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1142                 return NULL;
1143         }
1144
1145         become_root();
1146         ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1147         unbecome_root();
1148
1149         if ( ret )
1150                 sid_copy( psid, pdb_get_user_sid(sampw) );
1151         else {
1152                 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1153                         unix_pw->pw_name, (unsigned long)uid));
1154
1155                 return algorithmic_uid_to_sid( psid, uid);
1156         }
1157
1158         DEBUG(10,("local_uid_to_sid:  uid (%d) -> SID %s (%s).\n",
1159                 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1160
1161         return psid;
1162 }
1163
1164 /****************************************************************************
1165  Convert a SID to uid - locally.
1166 ****************************************************************************/
1167
1168 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1169 {
1170         SAM_ACCOUNT *sampw = NULL;
1171         struct passwd *unix_pw;
1172         const char *user_name;
1173
1174         *name_type = SID_NAME_UNKNOWN;
1175
1176         /*
1177          * We can only convert to a uid if this is our local
1178          * Domain SID (ie. we are the controling authority).
1179          */
1180         if (!sid_check_is_in_our_domain(psid) ) {
1181                 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1182                 return False;
1183         }
1184
1185         /* lookup the user account */
1186
1187         if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1188                 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1189                 return False;
1190         }
1191
1192         become_root();
1193         if ( !pdb_getsampwsid(sampw, psid) ) {
1194                 unbecome_root();
1195                 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1196                         sid_string_static(psid)));
1197                 return False;
1198         }
1199         unbecome_root();
1200
1201         user_name = pdb_get_username(sampw);
1202
1203         unix_pw = sys_getpwnam( user_name );
1204
1205         if ( !unix_pw ) {
1206                 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1207                         user_name));
1208                 pdb_free_sam( &sampw );
1209                 return False;
1210         }
1211
1212         *puid = unix_pw->pw_uid;
1213
1214         DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1215                 (unsigned int)*puid, user_name ));
1216
1217         *name_type = SID_NAME_USER;
1218
1219         return True;
1220 }
1221
1222 /****************************************************************************
1223  Convert a gid to SID - algorithmic.
1224 ****************************************************************************/
1225
1226 DOM_SID *algorithmic_gid_to_sid(DOM_SID *psid, uid_t gid)
1227 {
1228         if ( !lp_enable_rid_algorithm() )
1229                 return NULL;
1230
1231         DEBUG(8,("algorithmic_gid_to_sid: falling back to RID algorithm\n"));
1232         sid_copy( psid, get_global_sam_sid() );
1233         sid_append_rid( psid, pdb_gid_to_group_rid(gid) );
1234         DEBUG(10,("algorithmic_gid_to_sid:  gid (%d) -> SID %s.\n",
1235                 (unsigned int)gid, sid_string_static(psid) ));
1236
1237         return psid;
1238 }
1239
1240 /****************************************************************************
1241  Convert a gid to SID - locally.
1242 ****************************************************************************/
1243
1244 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1245 {
1246         GROUP_MAP group;
1247         BOOL ret;
1248
1249         /* we don't need to disable winbindd since the gid is stored in
1250            the GROUP_MAP object */
1251
1252         /* done as root since ldap backend requires root to open a connection */
1253
1254         become_root();
1255         ret = pdb_getgrgid( &group, gid );
1256         unbecome_root();
1257
1258         if ( !ret ) {
1259
1260                 /* algorithmic to rid mapping if enabled */
1261
1262                 if ( lp_enable_rid_algorithm() ) {
1263
1264                         DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1265                                 (unsigned int)gid, sid_string_static(psid)));
1266
1267                         return algorithmic_gid_to_sid(psid, gid);
1268                 }
1269                 else
1270                         return NULL;
1271         }
1272
1273         sid_copy( psid, &group.sid );
1274
1275         DEBUG(10,("local_gid_to_sid:  gid (%d) -> SID %s.\n",
1276                 (unsigned int)gid, sid_string_static(psid)));
1277
1278         return psid;
1279 }
1280
1281 /****************************************************************************
1282  Convert a SID to gid - locally.
1283 ****************************************************************************/
1284
1285 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1286 {
1287         uint32 rid;
1288         GROUP_MAP group;
1289         BOOL ret;
1290
1291         *name_type = SID_NAME_UNKNOWN;
1292
1293         /* This call can enumerate group mappings for foreign sids as well.
1294            So don't check for a match against our domain SID */
1295
1296         /* we don't need to disable winbindd since the gid is stored in
1297            the GROUP_MAP object */
1298
1299         become_root();
1300         ret = pdb_getgrsid(&group, *psid);
1301         unbecome_root();
1302
1303         if ( !ret ) {
1304
1305                 /* Fallback to algorithmic rid mapping if enabled */
1306
1307                 if ( lp_enable_rid_algorithm() ) {
1308
1309                         if (!sid_check_is_in_our_domain(psid) ) {
1310                                 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1311                                 return False;
1312                         }
1313
1314                         if (!sid_peek_rid(psid, &rid)) {
1315                                 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1316                                         return False;
1317                         }
1318
1319                         DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1320
1321                         if (algorithmic_pdb_rid_is_user(rid)) {
1322                                 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1323                                 return False;
1324                         } else {
1325                                 *pgid = pdb_group_rid_to_gid(rid);
1326                                 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1327                                 return True;
1328                         }
1329                 }
1330
1331                 return False;
1332         }
1333
1334         *pgid = group.gid;
1335         *name_type = group.sid_name_use;
1336
1337         DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1338                 (unsigned int)*pgid));
1339
1340         return True;
1341 }
1342
1343 /**********************************************************************
1344  Marshall/unmarshall SAM_ACCOUNT structs.
1345  *********************************************************************/
1346
1347 #define TDB_FORMAT_STRING_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1348 #define TDB_FORMAT_STRING_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1349 #define TDB_FORMAT_STRING_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1350
1351 /**********************************************************************
1352  Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1353  *********************************************************************/
1354
1355 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1356 {
1357         return(init_sam_from_buffer_v2(sampass, buf, buflen));
1358 }
1359
1360 /**********************************************************************
1361  Intialize a BYTE buffer from a SAM_ACCOUNT struct
1362  *********************************************************************/
1363
1364 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1365 {
1366         return(init_buffer_from_sam_v2(buf, sampass, size_only));
1367 }
1368
1369
1370 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1371 {
1372
1373         /* times are stored as 32bit integer
1374            take care on system with 64bit wide time_t
1375            --SSS */
1376         uint32  logon_time,
1377                 logoff_time,
1378                 kickoff_time,
1379                 pass_last_set_time,
1380                 pass_can_change_time,
1381                 pass_must_change_time;
1382         char *username = NULL;
1383         char *domain = NULL;
1384         char *nt_username = NULL;
1385         char *dir_drive = NULL;
1386         char *unknown_str = NULL;
1387         char *munged_dial = NULL;
1388         char *fullname = NULL;
1389         char *homedir = NULL;
1390         char *logon_script = NULL;
1391         char *profile_path = NULL;
1392         char *acct_desc = NULL;
1393         char *workstations = NULL;
1394         uint32  username_len, domain_len, nt_username_len,
1395                 dir_drive_len, unknown_str_len, munged_dial_len,
1396                 fullname_len, homedir_len, logon_script_len,
1397                 profile_path_len, acct_desc_len, workstations_len;
1398
1399         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
1400         uint16  acct_ctrl, logon_divs;
1401         uint16  bad_password_count, logon_count;
1402         uint8   *hours = NULL;
1403         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1404         uint32          len = 0;
1405         uint32          lm_pw_len, nt_pw_len, hourslen;
1406         BOOL ret = True;
1407
1408         if(sampass == NULL || buf == NULL) {
1409                 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1410                 return False;
1411         }
1412
1413 /* TDB_FORMAT_STRING_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1414
1415         /* unpack the buffer into variables */
1416         len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1417                 &logon_time,                                            /* d */
1418                 &logoff_time,                                           /* d */
1419                 &kickoff_time,                                          /* d */
1420                 &pass_last_set_time,                                    /* d */
1421                 &pass_can_change_time,                                  /* d */
1422                 &pass_must_change_time,                                 /* d */
1423                 &username_len, &username,                               /* B */
1424                 &domain_len, &domain,                                   /* B */
1425                 &nt_username_len, &nt_username,                         /* B */
1426                 &fullname_len, &fullname,                               /* B */
1427                 &homedir_len, &homedir,                                 /* B */
1428                 &dir_drive_len, &dir_drive,                             /* B */
1429                 &logon_script_len, &logon_script,                       /* B */
1430                 &profile_path_len, &profile_path,                       /* B */
1431                 &acct_desc_len, &acct_desc,                             /* B */
1432                 &workstations_len, &workstations,                       /* B */
1433                 &unknown_str_len, &unknown_str,                         /* B */
1434                 &munged_dial_len, &munged_dial,                         /* B */
1435                 &user_rid,                                              /* d */
1436                 &group_rid,                                             /* d */
1437                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1438                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1439                 &acct_ctrl,                                             /* w */
1440                 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1441                 &logon_divs,                                            /* w */
1442                 &hours_len,                                             /* d */
1443                 &hourslen, &hours,                                      /* B */
1444                 &bad_password_count,                                    /* w */
1445                 &logon_count,                                           /* w */
1446                 &unknown_6);                                            /* d */
1447
1448         if (len == (uint32) -1)  {
1449                 ret = False;
1450                 goto done;
1451         }
1452
1453         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1454         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1455         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1456         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1457         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1458         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1459
1460         pdb_set_username(sampass, username, PDB_SET);
1461         pdb_set_domain(sampass, domain, PDB_SET);
1462         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1463         pdb_set_fullname(sampass, fullname, PDB_SET);
1464
1465         if (homedir) {
1466                 pdb_set_homedir(sampass, homedir, PDB_SET);
1467         }
1468         else {
1469                 pdb_set_homedir(sampass,
1470                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1471                         PDB_DEFAULT);
1472         }
1473
1474         if (dir_drive)
1475                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1476         else {
1477                 pdb_set_dir_drive(sampass,
1478                         talloc_sub_basic(sampass->mem_ctx,  username, lp_logon_drive()),
1479                         PDB_DEFAULT);
1480         }
1481
1482         if (logon_script)
1483                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1484         else {
1485                 pdb_set_logon_script(sampass,
1486                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1487                         PDB_DEFAULT);
1488         }
1489
1490         if (profile_path) {
1491                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1492         } else {
1493                 pdb_set_profile_path(sampass,
1494                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1495                         PDB_DEFAULT);
1496         }
1497
1498         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1499         pdb_set_workstations(sampass, workstations, PDB_SET);
1500         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1501
1502         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1503                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1504                         ret = False;
1505                         goto done;
1506                 }
1507         }
1508
1509         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1510                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1511                         ret = False;
1512                         goto done;
1513                 }
1514         }
1515
1516         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1517         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1518         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1519         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1520         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1521         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1522         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1523         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1524         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1525         pdb_set_hours(sampass, hours, PDB_SET);
1526
1527 done:
1528
1529         SAFE_FREE(username);
1530         SAFE_FREE(domain);
1531         SAFE_FREE(nt_username);
1532         SAFE_FREE(fullname);
1533         SAFE_FREE(homedir);
1534         SAFE_FREE(dir_drive);
1535         SAFE_FREE(logon_script);
1536         SAFE_FREE(profile_path);
1537         SAFE_FREE(acct_desc);
1538         SAFE_FREE(workstations);
1539         SAFE_FREE(munged_dial);
1540         SAFE_FREE(unknown_str);
1541         SAFE_FREE(lm_pw_ptr);
1542         SAFE_FREE(nt_pw_ptr);
1543         SAFE_FREE(hours);
1544
1545         return ret;
1546 }
1547
1548 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1549 {
1550
1551         /* times are stored as 32bit integer
1552            take care on system with 64bit wide time_t
1553            --SSS */
1554         uint32  logon_time,
1555                 logoff_time,
1556                 kickoff_time,
1557                 bad_password_time,
1558                 pass_last_set_time,
1559                 pass_can_change_time,
1560                 pass_must_change_time;
1561         char *username = NULL;
1562         char *domain = NULL;
1563         char *nt_username = NULL;
1564         char *dir_drive = NULL;
1565         char *unknown_str = NULL;
1566         char *munged_dial = NULL;
1567         char *fullname = NULL;
1568         char *homedir = NULL;
1569         char *logon_script = NULL;
1570         char *profile_path = NULL;
1571         char *acct_desc = NULL;
1572         char *workstations = NULL;
1573         uint32  username_len, domain_len, nt_username_len,
1574                 dir_drive_len, unknown_str_len, munged_dial_len,
1575                 fullname_len, homedir_len, logon_script_len,
1576                 profile_path_len, acct_desc_len, workstations_len;
1577
1578         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
1579         uint16  acct_ctrl, logon_divs;
1580         uint16  bad_password_count, logon_count;
1581         uint8   *hours = NULL;
1582         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1583         uint32          len = 0;
1584         uint32          lm_pw_len, nt_pw_len, hourslen;
1585         BOOL ret = True;
1586
1587         if(sampass == NULL || buf == NULL) {
1588                 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1589                 return False;
1590         }
1591
1592 /* TDB_FORMAT_STRING_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1593
1594         /* unpack the buffer into variables */
1595         len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1596                 &logon_time,                                            /* d */
1597                 &logoff_time,                                           /* d */
1598                 &kickoff_time,                                          /* d */
1599                 /* Change from V0 is addition of bad_password_time field. */
1600                 &bad_password_time,                                     /* d */
1601                 &pass_last_set_time,                                    /* d */
1602                 &pass_can_change_time,                                  /* d */
1603                 &pass_must_change_time,                                 /* d */
1604                 &username_len, &username,                               /* B */
1605                 &domain_len, &domain,                                   /* B */
1606                 &nt_username_len, &nt_username,                         /* B */
1607                 &fullname_len, &fullname,                               /* B */
1608                 &homedir_len, &homedir,                                 /* B */
1609                 &dir_drive_len, &dir_drive,                             /* B */
1610                 &logon_script_len, &logon_script,                       /* B */
1611                 &profile_path_len, &profile_path,                       /* B */
1612                 &acct_desc_len, &acct_desc,                             /* B */
1613                 &workstations_len, &workstations,                       /* B */
1614                 &unknown_str_len, &unknown_str,                         /* B */
1615                 &munged_dial_len, &munged_dial,                         /* B */
1616                 &user_rid,                                              /* d */
1617                 &group_rid,                                             /* d */
1618                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1619                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1620                 &acct_ctrl,                                             /* w */
1621                 &remove_me,                                             /* d */
1622                 &logon_divs,                                            /* w */
1623                 &hours_len,                                             /* d */
1624                 &hourslen, &hours,                                      /* B */
1625                 &bad_password_count,                                    /* w */
1626                 &logon_count,                                           /* w */
1627                 &unknown_6);                                            /* d */
1628
1629         if (len == (uint32) -1)  {
1630                 ret = False;
1631                 goto done;
1632         }
1633
1634         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1635         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1636         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1637
1638         /* Change from V0 is addition of bad_password_time field. */
1639         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1640         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1641         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1642         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1643
1644         pdb_set_username(sampass, username, PDB_SET);
1645         pdb_set_domain(sampass, domain, PDB_SET);
1646         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1647         pdb_set_fullname(sampass, fullname, PDB_SET);
1648
1649         if (homedir) {
1650                 pdb_set_homedir(sampass, homedir, PDB_SET);
1651         }
1652         else {
1653                 pdb_set_homedir(sampass,
1654                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1655                         PDB_DEFAULT);
1656         }
1657
1658         if (dir_drive)
1659                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1660         else {
1661                 pdb_set_dir_drive(sampass,
1662                         talloc_sub_basic(sampass->mem_ctx,  username, lp_logon_drive()),
1663                         PDB_DEFAULT);
1664         }
1665
1666         if (logon_script)
1667                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1668         else {
1669                 pdb_set_logon_script(sampass,
1670                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1671                         PDB_DEFAULT);
1672         }
1673
1674         if (profile_path) {
1675                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1676         } else {
1677                 pdb_set_profile_path(sampass,
1678                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1679                         PDB_DEFAULT);
1680         }
1681
1682         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1683         pdb_set_workstations(sampass, workstations, PDB_SET);
1684         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1685
1686         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1687                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1688                         ret = False;
1689                         goto done;
1690                 }
1691         }
1692
1693         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1694                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1695                         ret = False;
1696                         goto done;
1697                 }
1698         }
1699
1700         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1701
1702         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1703         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1704         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1705         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1706         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1707         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1708         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1709         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1710         pdb_set_hours(sampass, hours, PDB_SET);
1711
1712 done:
1713
1714         SAFE_FREE(username);
1715         SAFE_FREE(domain);
1716         SAFE_FREE(nt_username);
1717         SAFE_FREE(fullname);
1718         SAFE_FREE(homedir);
1719         SAFE_FREE(dir_drive);
1720         SAFE_FREE(logon_script);
1721         SAFE_FREE(profile_path);
1722         SAFE_FREE(acct_desc);
1723         SAFE_FREE(workstations);
1724         SAFE_FREE(munged_dial);
1725         SAFE_FREE(unknown_str);
1726         SAFE_FREE(lm_pw_ptr);
1727         SAFE_FREE(nt_pw_ptr);
1728         SAFE_FREE(hours);
1729
1730         return ret;
1731 }
1732
1733
1734 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1735 {
1736
1737         /* times are stored as 32bit integer
1738            take care on system with 64bit wide time_t
1739            --SSS */
1740         uint32  logon_time,
1741                 logoff_time,
1742                 kickoff_time,
1743                 bad_password_time,
1744                 pass_last_set_time,
1745                 pass_can_change_time,
1746                 pass_must_change_time;
1747         char *username = NULL;
1748         char *domain = NULL;
1749         char *nt_username = NULL;
1750         char *dir_drive = NULL;
1751         char *unknown_str = NULL;
1752         char *munged_dial = NULL;
1753         char *fullname = NULL;
1754         char *homedir = NULL;
1755         char *logon_script = NULL;
1756         char *profile_path = NULL;
1757         char *acct_desc = NULL;
1758         char *workstations = NULL;
1759         uint32  username_len, domain_len, nt_username_len,
1760                 dir_drive_len, unknown_str_len, munged_dial_len,
1761                 fullname_len, homedir_len, logon_script_len,
1762                 profile_path_len, acct_desc_len, workstations_len;
1763
1764         uint32  user_rid, group_rid, hours_len, unknown_6;
1765         uint16  acct_ctrl, logon_divs;
1766         uint16  bad_password_count, logon_count;
1767         uint8   *hours = NULL;
1768         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1769         uint32          len = 0;
1770         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1771         uint32 pwHistLen = 0;
1772         BOOL ret = True;
1773         fstring tmpstring;
1774
1775         if(sampass == NULL || buf == NULL) {
1776                 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1777                 return False;
1778         }
1779
1780 /* TDB_FORMAT_STRING_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1781
1782         /* unpack the buffer into variables */
1783         len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1784                 &logon_time,                                            /* d */
1785                 &logoff_time,                                           /* d */
1786                 &kickoff_time,                                          /* d */
1787                 &bad_password_time,                                     /* d */
1788                 &pass_last_set_time,                                    /* d */
1789                 &pass_can_change_time,                                  /* d */
1790                 &pass_must_change_time,                                 /* d */
1791                 &username_len, &username,                               /* B */
1792                 &domain_len, &domain,                                   /* B */
1793                 &nt_username_len, &nt_username,                         /* B */
1794                 &fullname_len, &fullname,                               /* B */
1795                 &homedir_len, &homedir,                                 /* B */
1796                 &dir_drive_len, &dir_drive,                             /* B */
1797                 &logon_script_len, &logon_script,                       /* B */
1798                 &profile_path_len, &profile_path,                       /* B */
1799                 &acct_desc_len, &acct_desc,                             /* B */
1800                 &workstations_len, &workstations,                       /* B */
1801                 &unknown_str_len, &unknown_str,                         /* B */
1802                 &munged_dial_len, &munged_dial,                         /* B */
1803                 &user_rid,                                              /* d */
1804                 &group_rid,                                             /* d */
1805                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1806                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1807                 /* Change from V1 is addition of password history field. */
1808                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1809                 &acct_ctrl,                                             /* w */
1810                 /* Also "remove_me" field was removed. */
1811                 &logon_divs,                                            /* w */
1812                 &hours_len,                                             /* d */
1813                 &hourslen, &hours,                                      /* B */
1814                 &bad_password_count,                                    /* w */
1815                 &logon_count,                                           /* w */
1816                 &unknown_6);                                            /* d */
1817
1818         if (len == (uint32) -1)  {
1819                 ret = False;
1820                 goto done;
1821         }
1822
1823         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1824         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1825         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1826         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1827         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1828         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1829         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1830
1831         pdb_set_username(sampass, username, PDB_SET);
1832         pdb_set_domain(sampass, domain, PDB_SET);
1833         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1834         pdb_set_fullname(sampass, fullname, PDB_SET);
1835
1836         if (homedir) {
1837                 fstrcpy( tmpstring, homedir );
1838                 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1839                 pdb_set_homedir(sampass, tmpstring, PDB_SET);
1840         }
1841         else {
1842                 pdb_set_homedir(sampass,
1843                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1844                         PDB_DEFAULT);
1845         }
1846
1847         if (dir_drive)
1848                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1849         else
1850                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1851
1852         if (logon_script) {
1853                 fstrcpy( tmpstring, logon_script );
1854                 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1855                 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
1856         }
1857         else {
1858                 pdb_set_logon_script(sampass,
1859                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1860                         PDB_DEFAULT);
1861         }
1862
1863         if (profile_path) {
1864                 fstrcpy( tmpstring, profile_path );
1865                 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1866                 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
1867         }
1868         else {
1869                 pdb_set_profile_path(sampass,
1870                         talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1871                         PDB_DEFAULT);
1872         }
1873
1874         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1875         pdb_set_workstations(sampass, workstations, PDB_SET);
1876         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1877
1878         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1879                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1880                         ret = False;
1881                         goto done;
1882                 }
1883         }
1884
1885         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1886                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1887                         ret = False;
1888                         goto done;
1889                 }
1890         }
1891
1892         /* Change from V1 is addition of password history field. */
1893         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1894         if (pwHistLen) {
1895                 char *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1896                 if (!pw_hist) {
1897                         ret = False;
1898                         goto done;
1899                 }
1900                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1901                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1902                         int i;
1903                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1904                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1905                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1906                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1907                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1908                                         PW_HISTORY_ENTRY_LEN);
1909                         }
1910                 }
1911                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1912                         SAFE_FREE(pw_hist);
1913                         ret = False;
1914                         goto done;
1915                 }
1916                 SAFE_FREE(pw_hist);
1917         } else {
1918                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1919         }
1920
1921         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1922         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1923         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1924         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1925         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1926         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1927         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1928         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1929         pdb_set_hours(sampass, hours, PDB_SET);
1930
1931 done:
1932
1933         SAFE_FREE(username);
1934         SAFE_FREE(domain);
1935         SAFE_FREE(nt_username);
1936         SAFE_FREE(fullname);
1937         SAFE_FREE(homedir);
1938         SAFE_FREE(dir_drive);
1939         SAFE_FREE(logon_script);
1940         SAFE_FREE(profile_path);
1941         SAFE_FREE(acct_desc);
1942         SAFE_FREE(workstations);
1943         SAFE_FREE(munged_dial);
1944         SAFE_FREE(unknown_str);
1945         SAFE_FREE(lm_pw_ptr);
1946         SAFE_FREE(nt_pw_ptr);
1947         SAFE_FREE(nt_pw_hist_ptr);
1948         SAFE_FREE(hours);
1949
1950         return ret;
1951 }
1952
1953 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1954 {
1955         size_t len, buflen;
1956
1957         /* times are stored as 32bit integer
1958            take care on system with 64bit wide time_t
1959            --SSS */
1960         uint32  logon_time,
1961                 logoff_time,
1962                 kickoff_time,
1963                 bad_password_time,
1964                 pass_last_set_time,
1965                 pass_can_change_time,
1966                 pass_must_change_time;
1967
1968         uint32  user_rid, group_rid;
1969
1970         const char *username;
1971         const char *domain;
1972         const char *nt_username;
1973         const char *dir_drive;
1974         const char *unknown_str;
1975         const char *munged_dial;
1976         const char *fullname;
1977         const char *homedir;
1978         const char *logon_script;
1979         const char *profile_path;
1980         const char *acct_desc;
1981         const char *workstations;
1982         uint32  username_len, domain_len, nt_username_len,
1983                 dir_drive_len, unknown_str_len, munged_dial_len,
1984                 fullname_len, homedir_len, logon_script_len,
1985                 profile_path_len, acct_desc_len, workstations_len;
1986
1987         const uint8 *lm_pw;
1988         const uint8 *nt_pw;
1989         const uint8 *nt_pw_hist;
1990         uint32  lm_pw_len = 16;
1991         uint32  nt_pw_len = 16;
1992         uint32  nt_pw_hist_len;
1993         uint32 pwHistLen = 0;
1994
1995         /* do we have a valid SAM_ACCOUNT pointer? */
1996         if (sampass == NULL) {
1997                 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1998                 return -1;
1999         }
2000
2001         *buf = NULL;
2002         buflen = 0;
2003
2004         logon_time = (uint32)pdb_get_logon_time(sampass);
2005         logoff_time = (uint32)pdb_get_logoff_time(sampass);
2006         kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
2007         bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
2008         pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
2009         pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
2010         pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
2011
2012         user_rid = pdb_get_user_rid(sampass);
2013         group_rid = pdb_get_group_rid(sampass);
2014
2015         username = pdb_get_username(sampass);
2016         if (username) {
2017                 username_len = strlen(username) +1;
2018         } else {
2019                 username_len = 0;
2020         }
2021
2022         domain = pdb_get_domain(sampass);
2023         if (domain) {
2024                 domain_len = strlen(domain) +1;
2025         } else {
2026                 domain_len = 0;
2027         }
2028
2029         nt_username = pdb_get_nt_username(sampass);
2030         if (nt_username) {
2031                 nt_username_len = strlen(nt_username) +1;
2032         } else {
2033                 nt_username_len = 0;
2034         }
2035
2036         fullname = pdb_get_fullname(sampass);
2037         if (fullname) {
2038                 fullname_len = strlen(fullname) +1;
2039         } else {
2040                 fullname_len = 0;
2041         }
2042
2043         /*
2044          * Only updates fields which have been set (not defaults from smb.conf)
2045          */
2046
2047         if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2048                 dir_drive = pdb_get_dir_drive(sampass);
2049         } else {
2050                 dir_drive = NULL;
2051         }
2052         if (dir_drive) {
2053                 dir_drive_len = strlen(dir_drive) +1;
2054         } else {
2055                 dir_drive_len = 0;
2056         }
2057
2058         if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2059                 homedir = pdb_get_homedir(sampass);
2060         } else {
2061                 homedir = NULL;
2062         }
2063         if (homedir) {
2064                 homedir_len = strlen(homedir) +1;
2065         } else {
2066                 homedir_len = 0;
2067         }
2068
2069         if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2070                 logon_script = pdb_get_logon_script(sampass);
2071         } else {
2072                 logon_script = NULL;
2073         }
2074         if (logon_script) {
2075                 logon_script_len = strlen(logon_script) +1;
2076         } else {
2077                 logon_script_len = 0;
2078         }
2079
2080         if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2081                 profile_path = pdb_get_profile_path(sampass);
2082         } else {
2083                 profile_path = NULL;
2084         }
2085         if (profile_path) {
2086                 profile_path_len = strlen(profile_path) +1;
2087         } else {
2088                 profile_path_len = 0;
2089         }
2090
2091         lm_pw = pdb_get_lanman_passwd(sampass);
2092         if (!lm_pw) {
2093                 lm_pw_len = 0;
2094         }
2095
2096         nt_pw = pdb_get_nt_passwd(sampass);
2097         if (!nt_pw) {
2098                 nt_pw_len = 0;
2099         }
2100
2101         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
2102         nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
2103         if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2104                 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2105         } else {
2106                 nt_pw_hist_len = 0;
2107         }
2108
2109         acct_desc = pdb_get_acct_desc(sampass);
2110         if (acct_desc) {
2111                 acct_desc_len = strlen(acct_desc) +1;
2112         } else {
2113                 acct_desc_len = 0;
2114         }
2115
2116         workstations = pdb_get_workstations(sampass);
2117         if (workstations) {
2118                 workstations_len = strlen(workstations) +1;
2119         } else {
2120                 workstations_len = 0;
2121         }
2122
2123         unknown_str = NULL;
2124         unknown_str_len = 0;
2125
2126         munged_dial = pdb_get_munged_dial(sampass);
2127         if (munged_dial) {
2128                 munged_dial_len = strlen(munged_dial) +1;
2129         } else {
2130                 munged_dial_len = 0;
2131         }
2132
2133 /* TDB_FORMAT_STRING_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2134
2135         /* one time to get the size needed */
2136         len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING_V2,
2137                 logon_time,                             /* d */
2138                 logoff_time,                            /* d */
2139                 kickoff_time,                           /* d */
2140                 bad_password_time,                      /* d */
2141                 pass_last_set_time,                     /* d */
2142                 pass_can_change_time,                   /* d */
2143                 pass_must_change_time,                  /* d */
2144                 username_len, username,                 /* B */
2145                 domain_len, domain,                     /* B */
2146                 nt_username_len, nt_username,           /* B */
2147                 fullname_len, fullname,                 /* B */
2148                 homedir_len, homedir,                   /* B */
2149                 dir_drive_len, dir_drive,               /* B */
2150                 logon_script_len, logon_script,         /* B */
2151                 profile_path_len, profile_path,         /* B */
2152                 acct_desc_len, acct_desc,               /* B */
2153                 workstations_len, workstations,         /* B */
2154                 unknown_str_len, unknown_str,           /* B */
2155                 munged_dial_len, munged_dial,           /* B */
2156                 user_rid,                               /* d */
2157                 group_rid,                              /* d */
2158                 lm_pw_len, lm_pw,                       /* B */
2159                 nt_pw_len, nt_pw,                       /* B */
2160                 nt_pw_hist_len, nt_pw_hist,             /* B */
2161                 pdb_get_acct_ctrl(sampass),             /* w */
2162                 pdb_get_logon_divs(sampass),            /* w */
2163                 pdb_get_hours_len(sampass),             /* d */
2164                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
2165                 pdb_get_bad_password_count(sampass),    /* w */
2166                 pdb_get_logon_count(sampass),           /* w */
2167                 pdb_get_unknown_6(sampass));            /* d */
2168
2169         if (size_only) {
2170                 return buflen;
2171         }
2172
2173         /* malloc the space needed */
2174         if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2175                 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2176                 return (-1);
2177         }
2178
2179         /* now for the real call to tdb_pack() */
2180         buflen = tdb_pack((char *)*buf, len,  TDB_FORMAT_STRING_V2,
2181                 logon_time,                             /* d */
2182                 logoff_time,                            /* d */
2183                 kickoff_time,                           /* d */
2184                 bad_password_time,                      /* d */
2185                 pass_last_set_time,                     /* d */
2186                 pass_can_change_time,                   /* d */
2187                 pass_must_change_time,                  /* d */
2188                 username_len, username,                 /* B */
2189                 domain_len, domain,                     /* B */
2190                 nt_username_len, nt_username,           /* B */
2191                 fullname_len, fullname,                 /* B */
2192                 homedir_len, homedir,                   /* B */
2193                 dir_drive_len, dir_drive,               /* B */
2194                 logon_script_len, logon_script,         /* B */
2195                 profile_path_len, profile_path,         /* B */
2196                 acct_desc_len, acct_desc,               /* B */
2197                 workstations_len, workstations,         /* B */
2198                 unknown_str_len, unknown_str,           /* B */
2199                 munged_dial_len, munged_dial,           /* B */
2200                 user_rid,                               /* d */
2201                 group_rid,                              /* d */
2202                 lm_pw_len, lm_pw,                       /* B */
2203                 nt_pw_len, nt_pw,                       /* B */
2204                 nt_pw_hist_len, nt_pw_hist,             /* B */
2205                 pdb_get_acct_ctrl(sampass),             /* w */
2206                 pdb_get_logon_divs(sampass),            /* w */
2207                 pdb_get_hours_len(sampass),             /* d */
2208                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
2209                 pdb_get_bad_password_count(sampass),    /* w */
2210                 pdb_get_logon_count(sampass),           /* w */
2211                 pdb_get_unknown_6(sampass));            /* d */
2212
2213         /* check to make sure we got it correct */
2214         if (buflen != len) {
2215                 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2216                           (unsigned long)buflen, (unsigned long)len));
2217                 /* error */
2218                 SAFE_FREE (*buf);
2219                 return (-1);
2220         }
2221
2222         return (buflen);
2223 }
2224
2225 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2226 {
2227         BOOL result;
2228         uint8 *buf;
2229         int len;
2230
2231         if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2232                 return False;
2233
2234         len = init_buffer_from_sam_v2(&buf, src, False);
2235
2236         if (len == -1)
2237                 return False;
2238
2239         result = init_sam_from_buffer_v2(*dst, buf, len);
2240         (*dst)->methods = src->methods;
2241
2242         free(buf);
2243
2244         return result;
2245 }
2246
2247 /**********************************************************************
2248 **********************************************************************/
2249
2250 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2251 {
2252         uid_t u_low, u_high;
2253         gid_t g_low, g_high;
2254
2255         if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2256                 return False;
2257         }
2258
2259         *low  = (u_low < g_low)   ? u_low  : g_low;
2260         *high = (u_high < g_high) ? u_high : g_high;
2261
2262         return True;
2263 }
2264
2265 /******************************************************************
2266  Get the the non-algorithmic RID range if idmap range are defined
2267 ******************************************************************/
2268
2269 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2270 {
2271         uint32 id_low, id_high;
2272
2273         if (!lp_enable_rid_algorithm()) {
2274                 *low = BASE_RID;
2275                 *high = (uint32)-1;
2276         }
2277
2278         if (!get_free_ugid_range(&id_low, &id_high)) {
2279                 return False;
2280         }
2281
2282         *low = algorithmic_pdb_uid_to_user_rid(id_low);
2283         if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2284                 *high = (uint32)-1;
2285         } else {
2286                 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2287         }
2288
2289         return True;
2290 }
2291
2292 /*********************************************************************
2293  Update the bad password count checking the AP_RESET_COUNT_TIME
2294 *********************************************************************/
2295
2296 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2297 {
2298         time_t LastBadPassword;
2299         uint16 BadPasswordCount;
2300         uint32 resettime;
2301
2302         if (!sampass) return False;
2303
2304         BadPasswordCount = pdb_get_bad_password_count(sampass);
2305         if (!BadPasswordCount) {
2306                 DEBUG(9, ("No bad password attempts.\n"));
2307                 return True;
2308         }
2309
2310         if (!pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime)) {
2311                 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2312                 return False;
2313         }
2314
2315         /* First, check if there is a reset time to compare */
2316         if ((resettime == (uint32) -1) || (resettime == 0)) {
2317                 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2318                 return True;
2319         }
2320
2321         LastBadPassword = pdb_get_bad_password_time(sampass);
2322         DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2323                    (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2324         if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2325                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2326                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2327                 if (updated) {
2328                         *updated = True;
2329                 }
2330         }
2331
2332         return True;
2333 }
2334
2335 /*********************************************************************
2336  Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2337 *********************************************************************/
2338
2339 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2340 {
2341         uint32 duration;
2342         time_t LastBadPassword;
2343
2344         if (!sampass) return False;
2345
2346         if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2347                 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2348                         pdb_get_username(sampass)));
2349                 return True;
2350         }
2351
2352         if (!pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2353                 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2354                 return False;
2355         }
2356
2357         /* First, check if there is a duration to compare */
2358         if ((duration == (uint32) -1)  || (duration == 0)) {
2359                 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2360                 return True;
2361         }
2362
2363         LastBadPassword = pdb_get_bad_password_time(sampass);
2364         DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2365                   pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2366
2367         if (LastBadPassword == (time_t)0) {
2368                 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2369 bad password time. Leaving locked out.\n",
2370                         pdb_get_username(sampass) ));
2371                         return True;
2372         }
2373
2374         if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2375                 pdb_set_acct_ctrl(sampass,
2376                                   pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2377                                   PDB_CHANGED);
2378                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2379                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2380                 if (updated) {
2381                         *updated = True;
2382                 }
2383         }
2384
2385         return True;
2386 }
2387
2388 /*********************************************************************
2389  Increment the bad_password_count
2390 *********************************************************************/
2391
2392 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2393 {
2394         uint32 account_policy_lockout;
2395         BOOL autolock_updated = False, badpw_updated = False;
2396
2397         if (!sampass)
2398                 return False;
2399
2400         /* Retrieve the account lockout policy */
2401         if (!pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT,
2402                                 &account_policy_lockout)) {
2403                 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2404                 return False;
2405         }
2406
2407         /* If there is no policy, we don't need to continue checking */
2408         if (!account_policy_lockout) {
2409                 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2410                 return True;
2411         }
2412
2413         /* Check if the autolock needs to be cleared */
2414         if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2415                 return False;
2416
2417         /* Check if the badpw count needs to be reset */
2418         if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2419                 return False;
2420
2421         /*
2422           Ok, now we can assume that any resetting that needs to be
2423           done has been done, and just get on with incrementing
2424           and autolocking if necessary
2425         */
2426
2427         pdb_set_bad_password_count(sampass,
2428                                    pdb_get_bad_password_count(sampass)+1,
2429                                    PDB_CHANGED);
2430         pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2431
2432
2433         if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2434                 return True;
2435
2436         if (!pdb_set_acct_ctrl(sampass,
2437                                pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2438                                PDB_CHANGED)) {
2439                 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2440                 return False;
2441         }
2442
2443         return True;
2444 }