source3/passdb/passdb.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Jeremy Allison                 1996-2001
   5    Copyright (C) Luke Kenneth Casson Leighton   1996-1998
   6    Copyright (C) Gerald (Jerry) Carter          2000-2006
   7    Copyright (C) Andrew Bartlett                2001-2002
   8    Copyright (C) Simo Sorce                     2003
   9    Copyright (C) Volker Lendecke                2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "includes.h"
  26 #include "../libcli/auth/libcli_auth.h"
  27
  28 #undef DBGC_CLASS
  29 #define DBGC_CLASS DBGC_PASSDB
  30
  31 /******************************************************************
  32  Get the default domain/netbios name to be used when
  33  testing authentication.
  34
  35  LEGACY: this function provides the legacy domain mapping used with
  36          the lp_map_untrusted_to_domain() parameter
  37 ******************************************************************/
  38
  39 const char *my_sam_name(void)
  40 {
  41        /* Standalone servers can only use the local netbios name */
  42        if ( lp_server_role() == ROLE_STANDALONE )
  43                return global_myname();
  44
  45        /* Default to the DOMAIN name when not specified */
  46        return lp_workgroup();
  47 }
  48
  49 /**********************************************************************
  50 ***********************************************************************/
  51
  52 static int samu_destroy(struct samu *user)
  53 {
  54         data_blob_clear_free( &user->lm_pw );
  55         data_blob_clear_free( &user->nt_pw );
  56
  57         if ( user->plaintext_pw )
  58                 memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
  59
  60         return 0;
  61 }
  62
  63 /**********************************************************************
  64  generate a new struct samuser
  65 ***********************************************************************/
  66
  67 struct samu *samu_new( TALLOC_CTX *ctx )
  68 {
  69         struct samu *user;
  70
  71         if ( !(user = TALLOC_ZERO_P( ctx, struct samu )) ) {
  72                 DEBUG(0,("samuser_new: Talloc failed!\n"));
  73                 return NULL;
  74         }
  75
  76         talloc_set_destructor( user, samu_destroy );
  77
  78         /* no initial methods */
  79
  80         user->methods = NULL;
  81
  82         /* Don't change these timestamp settings without a good reason.
  83            They are important for NT member server compatibility. */
  84
  85         user->logon_time            = (time_t)0;
  86         user->pass_last_set_time    = (time_t)0;
  87         user->pass_can_change_time  = (time_t)0;
  88         user->logoff_time           = get_time_t_max();
  89         user->kickoff_time          = get_time_t_max();
  90         user->pass_must_change_time = get_time_t_max();
  91         user->fields_present        = 0x00ffffff;
  92         user->logon_divs = 168;         /* hours per week */
  93         user->hours_len = 21;           /* 21 times 8 bits = 168 */
  94         memset(user->hours, 0xff, user->hours_len); /* available at all hours */
  95         user->bad_password_count = 0;
  96         user->logon_count = 0;
  97         user->unknown_6 = 0x000004ec; /* don't know */
  98
  99         /* Some parts of samba strlen their pdb_get...() returns,
 100            so this keeps the interface unchanged for now. */
 101
 102         user->username = "";
 103         user->domain = "";
 104         user->nt_username = "";
 105         user->full_name = "";
 106         user->home_dir = "";
 107         user->logon_script = "";
 108         user->profile_path = "";
 109         user->acct_desc = "";
 110         user->workstations = "";
 111         user->comment = "";
 112         user->munged_dial = "";
 113
 114         user->plaintext_pw = NULL;
 115
 116         /* Unless we know otherwise have a Account Control Bit
 117            value of 'normal user'.  This helps User Manager, which
 118            asks for a filtered list of users. */
 119
 120         user->acct_ctrl = ACB_NORMAL;
 121
 122         return user;
 123 }
 124
 125 /*********************************************************************
 126  Initialize a struct samu from a struct passwd including the user
 127  and group SIDs.  The *user structure is filled out with the Unix
 128  attributes and a user SID.
 129 *********************************************************************/
 130
 131 static NTSTATUS samu_set_unix_internal(struct samu *user, const struct passwd *pwd, bool create)
 132 {
 133         const char *guest_account = lp_guestaccount();
 134         const char *domain = global_myname();
 135         uint32 urid;
 136
 137         if ( !pwd ) {
 138                 return NT_STATUS_NO_SUCH_USER;
 139         }
 140
 141         /* Basic properties based upon the Unix account information */
 142
 143         pdb_set_username(user, pwd->pw_name, PDB_SET);
 144         pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
 145         pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
 146 #if 0
 147         /* This can lead to a primary group of S-1-22-2-XX which
 148            will be rejected by other parts of the Samba code.
 149            Rely on pdb_get_group_sid() to "Do The Right Thing" (TM)
 150            --jerry */
 151
 152         gid_to_sid(&group_sid, pwd->pw_gid);
 153         pdb_set_group_sid(user, &group_sid, PDB_SET);
 154 #endif
 155
 156         /* save the password structure for later use */
 157
 158         user->unix_pw = tcopy_passwd( user, pwd );
 159
 160         /* Special case for the guest account which must have a RID of 501 */
 161
 162         if ( strequal( pwd->pw_name, guest_account ) ) {
 163                 if ( !pdb_set_user_sid_from_rid(user, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
 164                         return NT_STATUS_NO_SUCH_USER;
 165                 }
 166                 return NT_STATUS_OK;
 167         }
 168
 169         /* Non-guest accounts...Check for a workstation or user account */
 170
 171         if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
 172                 /* workstation */
 173
 174                 if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
 175                         DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n",
 176                                 pwd->pw_name));
 177                         return NT_STATUS_INVALID_COMPUTER_NAME;
 178                 }
 179         }
 180         else {
 181                 /* user */
 182
 183                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
 184                         DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n",
 185                                 pwd->pw_name));
 186                         return NT_STATUS_INVALID_ACCOUNT_NAME;
 187                 }
 188
 189                 /* set some basic attributes */
 190
 191                 pdb_set_profile_path(user, talloc_sub_specified(user,
 192                         lp_logon_path(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 193                         PDB_DEFAULT);
 194                 pdb_set_homedir(user, talloc_sub_specified(user,
 195                         lp_logon_home(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 196                         PDB_DEFAULT);
 197                 pdb_set_dir_drive(user, talloc_sub_specified(user,
 198                         lp_logon_drive(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 199                         PDB_DEFAULT);
 200                 pdb_set_logon_script(user, talloc_sub_specified(user,
 201                         lp_logon_script(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
 202                         PDB_DEFAULT);
 203         }
 204
 205         /* Now deal with the user SID.  If we have a backend that can generate
 206            RIDs, then do so.  But sometimes the caller just wanted a structure
 207            initialized and will fill in these fields later (such as from a
 208            netr_SamInfo3 structure) */
 209
 210         if ( create && !pdb_rid_algorithm() ) {
 211                 uint32 user_rid;
 212                 DOM_SID user_sid;
 213
 214                 if ( !pdb_new_rid( &user_rid ) ) {
 215                         DEBUG(3, ("Could not allocate a new RID\n"));
 216                         return NT_STATUS_ACCESS_DENIED;
 217                 }
 218
 219                 sid_copy( &user_sid, get_global_sam_sid() );
 220                 sid_append_rid( &user_sid, user_rid );
 221
 222                 if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
 223                         DEBUG(3, ("pdb_set_user_sid failed\n"));
 224                         return NT_STATUS_INTERNAL_ERROR;
 225                 }
 226
 227                 return NT_STATUS_OK;
 228         }
 229
 230         /* generate a SID for the user with the RID algorithm */
 231
 232         urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
 233
 234         if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
 235                 return NT_STATUS_INTERNAL_ERROR;
 236         }
 237
 238         return NT_STATUS_OK;
 239 }
 240
 241 /********************************************************************
 242  Set the Unix user attributes
 243 ********************************************************************/
 244
 245 NTSTATUS samu_set_unix(struct samu *user, const struct passwd *pwd)
 246 {
 247         return samu_set_unix_internal( user, pwd, False );
 248 }
 249
 250 NTSTATUS samu_alloc_rid_unix(struct samu *user, const struct passwd *pwd)
 251 {
 252         return samu_set_unix_internal( user, pwd, True );
 253 }
 254
 255 /**********************************************************
 256  Encode the account control bits into a string.
 257  length = length of string to encode into (including terminating
 258  null). length *MUST BE MORE THAN 2* !
 259  **********************************************************/
 260
 261 char *pdb_encode_acct_ctrl(uint32_t acct_ctrl, size_t length)
 262 {
 263         fstring acct_str;
 264         char *result;
 265
 266         size_t i = 0;
 267
 268         SMB_ASSERT(length <= sizeof(acct_str));
 269
 270         acct_str[i++] = '[';
 271
 272         if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
 273         if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
 274         if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
 275         if (acct_ctrl & ACB_TEMPDUP  ) acct_str[i++] = 'T';
 276         if (acct_ctrl & ACB_NORMAL   ) acct_str[i++] = 'U';
 277         if (acct_ctrl & ACB_MNS      ) acct_str[i++] = 'M';
 278         if (acct_ctrl & ACB_WSTRUST  ) acct_str[i++] = 'W';
 279         if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
 280         if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
 281         if (acct_ctrl & ACB_PWNOEXP  ) acct_str[i++] = 'X';
 282         if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
 283
 284         for ( ; i < length - 2 ; i++ )
 285                 acct_str[i] = ' ';
 286
 287         i = length - 2;
 288         acct_str[i++] = ']';
 289         acct_str[i++] = '\0';
 290
 291         result = talloc_strdup(talloc_tos(), acct_str);
 292         SMB_ASSERT(result != NULL);
 293         return result;
 294 }
 295
 296 /**********************************************************
 297  Decode the account control bits from a string.
 298  **********************************************************/
 299
 300 uint32_t pdb_decode_acct_ctrl(const char *p)
 301 {
 302         uint32_t acct_ctrl = 0;
 303         bool finished = false;
 304
 305         /*
 306          * Check if the account type bits have been encoded after the
 307          * NT password (in the form [NDHTUWSLXI]).
 308          */
 309
 310         if (*p != '[')
 311                 return 0;
 312
 313         for (p++; *p && !finished; p++) {
 314                 switch (*p) {
 315                         case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
 316                         case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
 317                         case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
 318                         case 'T': { acct_ctrl |= ACB_TEMPDUP  ; break; /* 'T'emp account. */ }
 319                         case 'U': { acct_ctrl |= ACB_NORMAL   ; break; /* 'U'ser account (normal). */ }
 320                         case 'M': { acct_ctrl |= ACB_MNS      ; break; /* 'M'NS logon user account. What is this ? */ }
 321                         case 'W': { acct_ctrl |= ACB_WSTRUST  ; break; /* 'W'orkstation account. */ }
 322                         case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
 323                         case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
 324                         case 'X': { acct_ctrl |= ACB_PWNOEXP  ; break; /* No 'X'piry on password */ }
 325                         case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
 326             case ' ': { break; }
 327                         case ':':
 328                         case '\n':
 329                         case '\0':
 330                         case ']':
 331                         default:  { finished = true; }
 332                 }
 333         }
 334
 335         return acct_ctrl;
 336 }
 337
 338 /*************************************************************
 339  Routine to set 32 hex password characters from a 16 byte array.
 340 **************************************************************/
 341
 342 void pdb_sethexpwd(char p[33], const unsigned char *pwd, uint32 acct_ctrl)
 343 {
 344         if (pwd != NULL) {
 345                 int i;
 346                 for (i = 0; i < 16; i++)
 347                         slprintf(&p[i*2], 3, "%02X", pwd[i]);
 348         } else {
 349                 if (acct_ctrl & ACB_PWNOTREQ)
 350                         safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 32);
 351                 else
 352                         safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 32);
 353         }
 354 }
 355
 356 /*************************************************************
 357  Routine to get the 32 hex characters and turn them
 358  into a 16 byte array.
 359 **************************************************************/
 360
 361 bool pdb_gethexpwd(const char *p, unsigned char *pwd)
 362 {
 363         int i;
 364         unsigned char   lonybble, hinybble;
 365         const char      *hexchars = "0123456789ABCDEF";
 366         char           *p1, *p2;
 367
 368         if (!p)
 369                 return false;
 370
 371         for (i = 0; i < 32; i += 2) {
 372                 hinybble = toupper_ascii(p[i]);
 373                 lonybble = toupper_ascii(p[i + 1]);
 374
 375                 p1 = strchr(hexchars, hinybble);
 376                 p2 = strchr(hexchars, lonybble);
 377
 378                 if (!p1 || !p2)
 379                         return false;
 380
 381                 hinybble = PTR_DIFF(p1, hexchars);
 382                 lonybble = PTR_DIFF(p2, hexchars);
 383
 384                 pwd[i / 2] = (hinybble << 4) | lonybble;
 385         }
 386         return true;
 387 }
 388
 389 /*************************************************************
 390  Routine to set 42 hex hours characters from a 21 byte array.
 391 **************************************************************/
 392
 393 void pdb_sethexhours(char *p, const unsigned char *hours)
 394 {
 395         if (hours != NULL) {
 396                 int i;
 397                 for (i = 0; i < 21; i++) {
 398                         slprintf(&p[i*2], 3, "%02X", hours[i]);
 399                 }
 400         } else {
 401                 safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
 402         }
 403 }
 404
 405 /*************************************************************
 406  Routine to get the 42 hex characters and turn them
 407  into a 21 byte array.
 408 **************************************************************/
 409
 410 bool pdb_gethexhours(const char *p, unsigned char *hours)
 411 {
 412         int i;
 413         unsigned char   lonybble, hinybble;
 414         const char      *hexchars = "0123456789ABCDEF";
 415         char           *p1, *p2;
 416
 417         if (!p) {
 418                 return (False);
 419         }
 420
 421         for (i = 0; i < 42; i += 2) {
 422                 hinybble = toupper_ascii(p[i]);
 423                 lonybble = toupper_ascii(p[i + 1]);
 424
 425                 p1 = strchr(hexchars, hinybble);
 426                 p2 = strchr(hexchars, lonybble);
 427
 428                 if (!p1 || !p2) {
 429                         return (False);
 430                 }
 431
 432                 hinybble = PTR_DIFF(p1, hexchars);
 433                 lonybble = PTR_DIFF(p2, hexchars);
 434
 435                 hours[i / 2] = (hinybble << 4) | lonybble;
 436         }
 437         return (True);
 438 }
 439
 440 /********************************************************************
 441 ********************************************************************/
 442
 443 int algorithmic_rid_base(void)
 444 {
 445         int rid_offset;
 446
 447         rid_offset = lp_algorithmic_rid_base();
 448
 449         if (rid_offset < BASE_RID) {
 450                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 451                    rids below 1000, that's the 'well known RIDs' on NT */
 452                 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
 453                 rid_offset = BASE_RID;
 454         }
 455         if (rid_offset & 1) {
 456                 DEBUG(0, ("algorithmic rid base must be even\n"));
 457                 rid_offset += 1;
 458         }
 459         return rid_offset;
 460 }
 461
 462 /*******************************************************************
 463  Converts NT user RID to a UNIX uid.
 464  ********************************************************************/
 465
 466 uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
 467 {
 468         int rid_offset = algorithmic_rid_base();
 469         return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
 470 }
 471
 472 uid_t max_algorithmic_uid(void)
 473 {
 474         return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
 475 }
 476
 477 /*******************************************************************
 478  converts UNIX uid to an NT User RID.
 479  ********************************************************************/
 480
 481 uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
 482 {
 483         int rid_offset = algorithmic_rid_base();
 484         return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
 485 }
 486
 487 /*******************************************************************
 488  Converts NT group RID to a UNIX gid.
 489  ********************************************************************/
 490
 491 gid_t pdb_group_rid_to_gid(uint32 group_rid)
 492 {
 493         int rid_offset = algorithmic_rid_base();
 494         return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
 495 }
 496
 497 gid_t max_algorithmic_gid(void)
 498 {
 499         return pdb_group_rid_to_gid(0xffffffff);
 500 }
 501
 502 /*******************************************************************
 503  converts NT Group RID to a UNIX uid.
 504
 505  warning: you must not call that function only
 506  you must do a call to the group mapping first.
 507  there is not anymore a direct link between the gid and the rid.
 508  ********************************************************************/
 509
 510 uint32 algorithmic_pdb_gid_to_group_rid(gid_t gid)
 511 {
 512         int rid_offset = algorithmic_rid_base();
 513         return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
 514 }
 515
 516 /*******************************************************************
 517  Decides if a RID is a well known RID.
 518  ********************************************************************/
 519
 520 static bool rid_is_well_known(uint32 rid)
 521 {
 522         /* Not using rid_offset here, because this is the actual
 523            NT fixed value (1000) */
 524
 525         return (rid < BASE_RID);
 526 }
 527
 528 /*******************************************************************
 529  Decides if a RID is a user or group RID.
 530  ********************************************************************/
 531
 532 bool algorithmic_pdb_rid_is_user(uint32 rid)
 533 {
 534         if ( rid_is_well_known(rid) ) {
 535                 /*
 536                  * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
 537                  * and DOMAIN_USER_RID_GUEST.
 538                  */
 539                 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
 540                         return True;
 541         } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
 542                 return True;
 543         }
 544         return False;
 545 }
 546
 547 /*******************************************************************
 548  Convert a name into a SID. Used in the lookup name rpc.
 549  ********************************************************************/
 550
 551 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
 552                             enum lsa_SidType *type)
 553 {
 554         GROUP_MAP map;
 555         bool ret;
 556
 557         /* Windows treats "MACHINE\None" as a special name for
 558            rid 513 on non-DCs.  You cannot create a user or group
 559            name "None" on Windows.  You will get an error that
 560            the group already exists. */
 561
 562         if ( strequal( name, "None" ) ) {
 563                 *rid = DOMAIN_GROUP_RID_USERS;
 564                 *type = SID_NAME_DOM_GRP;
 565
 566                 return True;
 567         }
 568
 569         /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
 570          * correctly in the case where foo also exists as a user. If the flag
 571          * is set, don't look for users at all. */
 572
 573         if ((flags & LOOKUP_NAME_GROUP) == 0) {
 574                 struct samu *sam_account = NULL;
 575                 DOM_SID user_sid;
 576
 577                 if ( !(sam_account = samu_new( NULL )) ) {
 578                         return False;
 579                 }
 580
 581                 become_root();
 582                 ret =  pdb_getsampwnam(sam_account, name);
 583                 unbecome_root();
 584
 585                 if (ret) {
 586                         sid_copy(&user_sid, pdb_get_user_sid(sam_account));
 587                 }
 588
 589                 TALLOC_FREE(sam_account);
 590
 591                 if (ret) {
 592                         if (!sid_check_is_in_our_domain(&user_sid)) {
 593                                 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
 594                                           name, sid_string_dbg(&user_sid)));
 595                                 return False;
 596                         }
 597
 598                         sid_peek_rid(&user_sid, rid);
 599                         *type = SID_NAME_USER;
 600                         return True;
 601                 }
 602         }
 603
 604         /*
 605          * Maybe it is a group ?
 606          */
 607
 608         become_root();
 609         ret = pdb_getgrnam(&map, name);
 610         unbecome_root();
 611
 612         if (!ret) {
 613                 return False;
 614         }
 615
 616         /* BUILTIN groups are looked up elsewhere */
 617         if (!sid_check_is_in_our_domain(&map.sid)) {
 618                 DEBUG(10, ("Found group %s (%s) not in our domain -- "
 619                            "ignoring.", name, sid_string_dbg(&map.sid)));
 620                 return False;
 621         }
 622
 623         /* yes it's a mapped group */
 624         sid_peek_rid(&map.sid, rid);
 625         *type = map.sid_name_use;
 626         return True;
 627 }
 628
 629 /*************************************************************
 630  Change a password entry in the local passdb backend.
 631
 632  Assumptions:
 633   - always called as root
 634   - ignores the account type except when adding a new account
 635   - will create/delete the unix account if the relative
 636     add/delete user script is configured
 637
 638  *************************************************************/
 639
 640 NTSTATUS local_password_change(const char *user_name,
 641                                 int local_flags,
 642                                 const char *new_passwd,
 643                                 char **pp_err_str,
 644                                 char **pp_msg_str)
 645 {
 646         TALLOC_CTX *tosctx;
 647         struct samu *sam_pass;
 648         uint32_t acb;
 649         uint32_t rid;
 650         NTSTATUS result;
 651         bool user_exists;
 652         int ret = -1;
 653
 654         *pp_err_str = NULL;
 655         *pp_msg_str = NULL;
 656
 657         tosctx = talloc_tos();
 658         if (!tosctx) {
 659                 return NT_STATUS_NO_MEMORY;
 660         }
 661
 662         sam_pass = samu_new(tosctx);
 663         if (!sam_pass) {
 664                 result = NT_STATUS_NO_MEMORY;
 665                 goto done;
 666         }
 667
 668         /* Get the smb passwd entry for this user */
 669         user_exists = pdb_getsampwnam(sam_pass, user_name);
 670
 671         /* Check delete first, we don't need to do anything else if we
 672          * are going to delete the acocunt */
 673         if (user_exists && (local_flags & LOCAL_DELETE_USER)) {
 674
 675                 result = pdb_delete_user(tosctx, sam_pass);
 676                 if (!NT_STATUS_IS_OK(result)) {
 677                         ret = asprintf(pp_err_str,
 678                                         "Failed to delete entry for user %s.\n",
 679                                         user_name);
 680                         if (ret < 0) {
 681                                 *pp_err_str = NULL;
 682                         }
 683                         result = NT_STATUS_UNSUCCESSFUL;
 684                 } else {
 685                         ret = asprintf(pp_msg_str,
 686                                         "Deleted user %s.\n",
 687                                         user_name);
 688                         if (ret < 0) {
 689                                 *pp_msg_str = NULL;
 690                         }
 691                 }
 692                 goto done;
 693         }
 694
 695         if (user_exists && (local_flags & LOCAL_ADD_USER)) {
 696                 /* the entry already existed */
 697                 local_flags &= ~LOCAL_ADD_USER;
 698         }
 699
 700         if (!user_exists && !(local_flags & LOCAL_ADD_USER)) {
 701                 ret = asprintf(pp_err_str,
 702                                 "Failed to find entry for user %s.\n",
 703                                 user_name);
 704                 if (ret < 0) {
 705                         *pp_err_str = NULL;
 706                 }
 707                 result = NT_STATUS_NO_SUCH_USER;
 708                 goto done;
 709         }
 710
 711         /* First thing add the new user if we are required to do so */
 712         if (local_flags & LOCAL_ADD_USER) {
 713
 714                 if (local_flags & LOCAL_TRUST_ACCOUNT) {
 715                         acb = ACB_WSTRUST;
 716                 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
 717                         acb = ACB_DOMTRUST;
 718                 } else {
 719                         acb = ACB_NORMAL;
 720                 }
 721
 722                 result = pdb_create_user(tosctx, user_name, acb, &rid);
 723                 if (!NT_STATUS_IS_OK(result)) {
 724                         ret = asprintf(pp_err_str,
 725                                         "Failed to add entry for user %s.\n",
 726                                         user_name);
 727                         if (ret < 0) {
 728                                 *pp_err_str = NULL;
 729                         }
 730                         result = NT_STATUS_UNSUCCESSFUL;
 731                         goto done;
 732                 }
 733
 734                 sam_pass = samu_new(tosctx);
 735                 if (!sam_pass) {
 736                         result = NT_STATUS_NO_MEMORY;
 737                         goto done;
 738                 }
 739
 740                 /* Now get back the smb passwd entry for this new user */
 741                 user_exists = pdb_getsampwnam(sam_pass, user_name);
 742                 if (!user_exists) {
 743                         ret = asprintf(pp_err_str,
 744                                         "Failed to add entry for user %s.\n",
 745                                         user_name);
 746                         if (ret < 0) {
 747                                 *pp_err_str = NULL;
 748                         }
 749                         result = NT_STATUS_UNSUCCESSFUL;
 750                         goto done;
 751                 }
 752         }
 753
 754         acb = pdb_get_acct_ctrl(sam_pass);
 755
 756         /*
 757          * We are root - just write the new password
 758          * and the valid last change time.
 759          */
 760         if ((local_flags & LOCAL_SET_NO_PASSWORD) && !(acb & ACB_PWNOTREQ)) {
 761                 acb |= ACB_PWNOTREQ;
 762                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 763                         ret = asprintf(pp_err_str,
 764                                         "Failed to set 'no password required' "
 765                                         "flag for user %s.\n", user_name);
 766                         if (ret < 0) {
 767                                 *pp_err_str = NULL;
 768                         }
 769                         result = NT_STATUS_UNSUCCESSFUL;
 770                         goto done;
 771                 }
 772         }
 773
 774         if (local_flags & LOCAL_SET_PASSWORD) {
 775                 /*
 776                  * If we're dealing with setting a completely empty user account
 777                  * ie. One with a password of 'XXXX', but not set disabled (like
 778                  * an account created from scratch) then if the old password was
 779                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
 780                  * We remove that as we're giving this user their first password
 781                  * and the decision hasn't really been made to disable them (ie.
 782                  * don't create them disabled). JRA.
 783                  */
 784                 if ((pdb_get_lanman_passwd(sam_pass) == NULL) &&
 785                     (acb & ACB_DISABLED)) {
 786                         acb &= (~ACB_DISABLED);
 787                         if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 788                                 ret = asprintf(pp_err_str,
 789                                                 "Failed to unset 'disabled' "
 790                                                 "flag for user %s.\n",
 791                                                 user_name);
 792                                 if (ret < 0) {
 793                                         *pp_err_str = NULL;
 794                                 }
 795                                 result = NT_STATUS_UNSUCCESSFUL;
 796                                 goto done;
 797                         }
 798                 }
 799
 800                 acb &= (~ACB_PWNOTREQ);
 801                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 802                         ret = asprintf(pp_err_str,
 803                                         "Failed to unset 'no password required'"
 804                                         " flag for user %s.\n", user_name);
 805                         if (ret < 0) {
 806                                 *pp_err_str = NULL;
 807                         }
 808                         result = NT_STATUS_UNSUCCESSFUL;
 809                         goto done;
 810                 }
 811
 812                 if (!pdb_set_plaintext_passwd(sam_pass, new_passwd)) {
 813                         ret = asprintf(pp_err_str,
 814                                         "Failed to set password for "
 815                                         "user %s.\n", user_name);
 816                                 if (ret < 0) {
 817                                 *pp_err_str = NULL;
 818                         }
 819                         result = NT_STATUS_UNSUCCESSFUL;
 820                         goto done;
 821                 }
 822         }
 823
 824         if ((local_flags & LOCAL_DISABLE_USER) && !(acb & ACB_DISABLED)) {
 825                 acb |= ACB_DISABLED;
 826                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 827                         ret = asprintf(pp_err_str,
 828                                         "Failed to set 'disabled' flag for "
 829                                         "user %s.\n", user_name);
 830                         if (ret < 0) {
 831                                 *pp_err_str = NULL;
 832                         }
 833                         result = NT_STATUS_UNSUCCESSFUL;
 834                         goto done;
 835                 }
 836         }
 837
 838         if ((local_flags & LOCAL_ENABLE_USER) && (acb & ACB_DISABLED)) {
 839                 acb &= (~ACB_DISABLED);
 840                 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
 841                         ret = asprintf(pp_err_str,
 842                                         "Failed to unset 'disabled' flag for "
 843                                         "user %s.\n", user_name);
 844                         if (ret < 0) {
 845                                 *pp_err_str = NULL;
 846                         }
 847                         result = NT_STATUS_UNSUCCESSFUL;
 848                         goto done;
 849                 }
 850         }
 851
 852         /* now commit changes if any */
 853         result = pdb_update_sam_account(sam_pass);
 854         if (!NT_STATUS_IS_OK(result)) {
 855                 ret = asprintf(pp_err_str,
 856                                 "Failed to modify entry for user %s.\n",
 857                                 user_name);
 858                 if (ret < 0) {
 859                         *pp_err_str = NULL;
 860                 }
 861                 goto done;
 862         }
 863
 864         if (local_flags & LOCAL_ADD_USER) {
 865                 ret = asprintf(pp_msg_str, "Added user %s.\n", user_name);
 866         } else if (local_flags & LOCAL_DISABLE_USER) {
 867                 ret = asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
 868         } else if (local_flags & LOCAL_ENABLE_USER) {
 869                 ret = asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
 870         } else if (local_flags & LOCAL_SET_NO_PASSWORD) {
 871                 ret = asprintf(pp_msg_str,
 872                                 "User %s password set to none.\n", user_name);
 873         }
 874
 875         if (ret < 0) {
 876                 *pp_msg_str = NULL;
 877         }
 878
 879         result = NT_STATUS_OK;
 880
 881 done:
 882         TALLOC_FREE(sam_pass);
 883         return result;
 884 }
 885
 886 /**********************************************************************
 887  Marshall/unmarshall struct samu structs.
 888  *********************************************************************/
 889
 890 #define SAMU_BUFFER_FORMAT_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
 891 #define SAMU_BUFFER_FORMAT_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
 892 #define SAMU_BUFFER_FORMAT_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
 893 #define SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
 894 /* nothing changed between V3 and V4 */
 895
 896 /*********************************************************************
 897 *********************************************************************/
 898
 899 static bool init_samu_from_buffer_v0(struct samu *sampass, uint8 *buf, uint32 buflen)
 900 {
 901
 902         /* times are stored as 32bit integer
 903            take care on system with 64bit wide time_t
 904            --SSS */
 905         uint32  logon_time,
 906                 logoff_time,
 907                 kickoff_time,
 908                 pass_last_set_time,
 909                 pass_can_change_time,
 910                 pass_must_change_time;
 911         char *username = NULL;
 912         char *domain = NULL;
 913         char *nt_username = NULL;
 914         char *dir_drive = NULL;
 915         char *unknown_str = NULL;
 916         char *munged_dial = NULL;
 917         char *fullname = NULL;
 918         char *homedir = NULL;
 919         char *logon_script = NULL;
 920         char *profile_path = NULL;
 921         char *acct_desc = NULL;
 922         char *workstations = NULL;
 923         uint32  username_len, domain_len, nt_username_len,
 924                 dir_drive_len, unknown_str_len, munged_dial_len,
 925                 fullname_len, homedir_len, logon_script_len,
 926                 profile_path_len, acct_desc_len, workstations_len;
 927
 928         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
 929         uint16  acct_ctrl, logon_divs;
 930         uint16  bad_password_count, logon_count;
 931         uint8   *hours = NULL;
 932         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
 933         uint32          len = 0;
 934         uint32          lm_pw_len, nt_pw_len, hourslen;
 935         bool ret = True;
 936
 937         if(sampass == NULL || buf == NULL) {
 938                 DEBUG(0, ("init_samu_from_buffer_v0: NULL parameters found!\n"));
 939                 return False;
 940         }
 941
 942 /* SAMU_BUFFER_FORMAT_V0       "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
 943
 944         /* unpack the buffer into variables */
 945         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V0,
 946                 &logon_time,                                            /* d */
 947                 &logoff_time,                                           /* d */
 948                 &kickoff_time,                                          /* d */
 949                 &pass_last_set_time,                                    /* d */
 950                 &pass_can_change_time,                                  /* d */
 951                 &pass_must_change_time,                                 /* d */
 952                 &username_len, &username,                               /* B */
 953                 &domain_len, &domain,                                   /* B */
 954                 &nt_username_len, &nt_username,                         /* B */
 955                 &fullname_len, &fullname,                               /* B */
 956                 &homedir_len, &homedir,                                 /* B */
 957                 &dir_drive_len, &dir_drive,                             /* B */
 958                 &logon_script_len, &logon_script,                       /* B */
 959                 &profile_path_len, &profile_path,                       /* B */
 960                 &acct_desc_len, &acct_desc,                             /* B */
 961                 &workstations_len, &workstations,                       /* B */
 962                 &unknown_str_len, &unknown_str,                         /* B */
 963                 &munged_dial_len, &munged_dial,                         /* B */
 964                 &user_rid,                                              /* d */
 965                 &group_rid,                                             /* d */
 966                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
 967                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
 968                 &acct_ctrl,                                             /* w */
 969                 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
 970                 &logon_divs,                                            /* w */
 971                 &hours_len,                                             /* d */
 972                 &hourslen, &hours,                                      /* B */
 973                 &bad_password_count,                                    /* w */
 974                 &logon_count,                                           /* w */
 975                 &unknown_6);                                            /* d */
 976
 977         if (len == (uint32) -1)  {
 978                 ret = False;
 979                 goto done;
 980         }
 981
 982         pdb_set_logon_time(sampass, logon_time, PDB_SET);
 983         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 984         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 985         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
 986         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
 987         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
 988
 989         pdb_set_username(sampass, username, PDB_SET);
 990         pdb_set_domain(sampass, domain, PDB_SET);
 991         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 992         pdb_set_fullname(sampass, fullname, PDB_SET);
 993
 994         if (homedir) {
 995                 pdb_set_homedir(sampass, homedir, PDB_SET);
 996         }
 997         else {
 998                 pdb_set_homedir(sampass,
 999                         talloc_sub_basic(sampass, username, domain,
1000                                          lp_logon_home()),
1001                         PDB_DEFAULT);
1002         }
1003
1004         if (dir_drive)
1005                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1006         else {
1007                 pdb_set_dir_drive(sampass,
1008                         talloc_sub_basic(sampass, username, domain,
1009                                          lp_logon_drive()),
1010                         PDB_DEFAULT);
1011         }
1012
1013         if (logon_script)
1014                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1015         else {
1016                 pdb_set_logon_script(sampass,
1017                         talloc_sub_basic(sampass, username, domain,
1018                                          lp_logon_script()),
1019                         PDB_DEFAULT);
1020         }
1021
1022         if (profile_path) {
1023                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1024         } else {
1025                 pdb_set_profile_path(sampass,
1026                         talloc_sub_basic(sampass, username, domain,
1027                                          lp_logon_path()),
1028                         PDB_DEFAULT);
1029         }
1030
1031         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1032         pdb_set_workstations(sampass, workstations, PDB_SET);
1033         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1034
1035         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1036                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1037                         ret = False;
1038                         goto done;
1039                 }
1040         }
1041
1042         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1043                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1044                         ret = False;
1045                         goto done;
1046                 }
1047         }
1048
1049         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1050         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1051         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1052         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1053         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1054         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1055         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1056         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1057         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1058         pdb_set_hours(sampass, hours, PDB_SET);
1059
1060 done:
1061
1062         SAFE_FREE(username);
1063         SAFE_FREE(domain);
1064         SAFE_FREE(nt_username);
1065         SAFE_FREE(fullname);
1066         SAFE_FREE(homedir);
1067         SAFE_FREE(dir_drive);
1068         SAFE_FREE(logon_script);
1069         SAFE_FREE(profile_path);
1070         SAFE_FREE(acct_desc);
1071         SAFE_FREE(workstations);
1072         SAFE_FREE(munged_dial);
1073         SAFE_FREE(unknown_str);
1074         SAFE_FREE(lm_pw_ptr);
1075         SAFE_FREE(nt_pw_ptr);
1076         SAFE_FREE(hours);
1077
1078         return ret;
1079 }
1080
1081 /*********************************************************************
1082 *********************************************************************/
1083
1084 static bool init_samu_from_buffer_v1(struct samu *sampass, uint8 *buf, uint32 buflen)
1085 {
1086
1087         /* times are stored as 32bit integer
1088            take care on system with 64bit wide time_t
1089            --SSS */
1090         uint32  logon_time,
1091                 logoff_time,
1092                 kickoff_time,
1093                 bad_password_time,
1094                 pass_last_set_time,
1095                 pass_can_change_time,
1096                 pass_must_change_time;
1097         char *username = NULL;
1098         char *domain = NULL;
1099         char *nt_username = NULL;
1100         char *dir_drive = NULL;
1101         char *unknown_str = NULL;
1102         char *munged_dial = NULL;
1103         char *fullname = NULL;
1104         char *homedir = NULL;
1105         char *logon_script = NULL;
1106         char *profile_path = NULL;
1107         char *acct_desc = NULL;
1108         char *workstations = NULL;
1109         uint32  username_len, domain_len, nt_username_len,
1110                 dir_drive_len, unknown_str_len, munged_dial_len,
1111                 fullname_len, homedir_len, logon_script_len,
1112                 profile_path_len, acct_desc_len, workstations_len;
1113
1114         uint32  user_rid, group_rid, remove_me, hours_len, unknown_6;
1115         uint16  acct_ctrl, logon_divs;
1116         uint16  bad_password_count, logon_count;
1117         uint8   *hours = NULL;
1118         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1119         uint32          len = 0;
1120         uint32          lm_pw_len, nt_pw_len, hourslen;
1121         bool ret = True;
1122
1123         if(sampass == NULL || buf == NULL) {
1124                 DEBUG(0, ("init_samu_from_buffer_v1: NULL parameters found!\n"));
1125                 return False;
1126         }
1127
1128 /* SAMU_BUFFER_FORMAT_V1       "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1129
1130         /* unpack the buffer into variables */
1131         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V1,
1132                 &logon_time,                                            /* d */
1133                 &logoff_time,                                           /* d */
1134                 &kickoff_time,                                          /* d */
1135                 /* Change from V0 is addition of bad_password_time field. */
1136                 &bad_password_time,                                     /* d */
1137                 &pass_last_set_time,                                    /* d */
1138                 &pass_can_change_time,                                  /* d */
1139                 &pass_must_change_time,                                 /* d */
1140                 &username_len, &username,                               /* B */
1141                 &domain_len, &domain,                                   /* B */
1142                 &nt_username_len, &nt_username,                         /* B */
1143                 &fullname_len, &fullname,                               /* B */
1144                 &homedir_len, &homedir,                                 /* B */
1145                 &dir_drive_len, &dir_drive,                             /* B */
1146                 &logon_script_len, &logon_script,                       /* B */
1147                 &profile_path_len, &profile_path,                       /* B */
1148                 &acct_desc_len, &acct_desc,                             /* B */
1149                 &workstations_len, &workstations,                       /* B */
1150                 &unknown_str_len, &unknown_str,                         /* B */
1151                 &munged_dial_len, &munged_dial,                         /* B */
1152                 &user_rid,                                              /* d */
1153                 &group_rid,                                             /* d */
1154                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1155                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1156                 &acct_ctrl,                                             /* w */
1157                 &remove_me,                                             /* d */
1158                 &logon_divs,                                            /* w */
1159                 &hours_len,                                             /* d */
1160                 &hourslen, &hours,                                      /* B */
1161                 &bad_password_count,                                    /* w */
1162                 &logon_count,                                           /* w */
1163                 &unknown_6);                                            /* d */
1164
1165         if (len == (uint32) -1)  {
1166                 ret = False;
1167                 goto done;
1168         }
1169
1170         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1171         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1172         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1173
1174         /* Change from V0 is addition of bad_password_time field. */
1175         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1176         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1177         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1178         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1179
1180         pdb_set_username(sampass, username, PDB_SET);
1181         pdb_set_domain(sampass, domain, PDB_SET);
1182         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1183         pdb_set_fullname(sampass, fullname, PDB_SET);
1184
1185         if (homedir) {
1186                 pdb_set_homedir(sampass, homedir, PDB_SET);
1187         }
1188         else {
1189                 pdb_set_homedir(sampass,
1190                         talloc_sub_basic(sampass, username, domain,
1191                                          lp_logon_home()),
1192                         PDB_DEFAULT);
1193         }
1194
1195         if (dir_drive)
1196                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1197         else {
1198                 pdb_set_dir_drive(sampass,
1199                         talloc_sub_basic(sampass, username, domain,
1200                                          lp_logon_drive()),
1201                         PDB_DEFAULT);
1202         }
1203
1204         if (logon_script)
1205                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1206         else {
1207                 pdb_set_logon_script(sampass,
1208                         talloc_sub_basic(sampass, username, domain,
1209                                          lp_logon_script()),
1210                         PDB_DEFAULT);
1211         }
1212
1213         if (profile_path) {
1214                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1215         } else {
1216                 pdb_set_profile_path(sampass,
1217                         talloc_sub_basic(sampass, username, domain,
1218                                          lp_logon_path()),
1219                         PDB_DEFAULT);
1220         }
1221
1222         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1223         pdb_set_workstations(sampass, workstations, PDB_SET);
1224         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1225
1226         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1227                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1228                         ret = False;
1229                         goto done;
1230                 }
1231         }
1232
1233         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1234                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1235                         ret = False;
1236                         goto done;
1237                 }
1238         }
1239
1240         pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1241
1242         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1243         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1244         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1245         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1246         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1247         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1248         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1249         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1250         pdb_set_hours(sampass, hours, PDB_SET);
1251
1252 done:
1253
1254         SAFE_FREE(username);
1255         SAFE_FREE(domain);
1256         SAFE_FREE(nt_username);
1257         SAFE_FREE(fullname);
1258         SAFE_FREE(homedir);
1259         SAFE_FREE(dir_drive);
1260         SAFE_FREE(logon_script);
1261         SAFE_FREE(profile_path);
1262         SAFE_FREE(acct_desc);
1263         SAFE_FREE(workstations);
1264         SAFE_FREE(munged_dial);
1265         SAFE_FREE(unknown_str);
1266         SAFE_FREE(lm_pw_ptr);
1267         SAFE_FREE(nt_pw_ptr);
1268         SAFE_FREE(hours);
1269
1270         return ret;
1271 }
1272
1273 static bool init_samu_from_buffer_v2(struct samu *sampass, uint8 *buf, uint32 buflen)
1274 {
1275
1276         /* times are stored as 32bit integer
1277            take care on system with 64bit wide time_t
1278            --SSS */
1279         uint32  logon_time,
1280                 logoff_time,
1281                 kickoff_time,
1282                 bad_password_time,
1283                 pass_last_set_time,
1284                 pass_can_change_time,
1285                 pass_must_change_time;
1286         char *username = NULL;
1287         char *domain = NULL;
1288         char *nt_username = NULL;
1289         char *dir_drive = NULL;
1290         char *unknown_str = NULL;
1291         char *munged_dial = NULL;
1292         char *fullname = NULL;
1293         char *homedir = NULL;
1294         char *logon_script = NULL;
1295         char *profile_path = NULL;
1296         char *acct_desc = NULL;
1297         char *workstations = NULL;
1298         uint32  username_len, domain_len, nt_username_len,
1299                 dir_drive_len, unknown_str_len, munged_dial_len,
1300                 fullname_len, homedir_len, logon_script_len,
1301                 profile_path_len, acct_desc_len, workstations_len;
1302
1303         uint32  user_rid, group_rid, hours_len, unknown_6;
1304         uint16  acct_ctrl, logon_divs;
1305         uint16  bad_password_count, logon_count;
1306         uint8   *hours = NULL;
1307         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1308         uint32          len = 0;
1309         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1310         uint32 pwHistLen = 0;
1311         bool ret = True;
1312         fstring tmp_string;
1313         bool expand_explicit = lp_passdb_expand_explicit();
1314
1315         if(sampass == NULL || buf == NULL) {
1316                 DEBUG(0, ("init_samu_from_buffer_v2: NULL parameters found!\n"));
1317                 return False;
1318         }
1319
1320 /* SAMU_BUFFER_FORMAT_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1321
1322         /* unpack the buffer into variables */
1323         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V2,
1324                 &logon_time,                                            /* d */
1325                 &logoff_time,                                           /* d */
1326                 &kickoff_time,                                          /* d */
1327                 &bad_password_time,                                     /* d */
1328                 &pass_last_set_time,                                    /* d */
1329                 &pass_can_change_time,                                  /* d */
1330                 &pass_must_change_time,                                 /* d */
1331                 &username_len, &username,                               /* B */
1332                 &domain_len, &domain,                                   /* B */
1333                 &nt_username_len, &nt_username,                         /* B */
1334                 &fullname_len, &fullname,                               /* B */
1335                 &homedir_len, &homedir,                                 /* B */
1336                 &dir_drive_len, &dir_drive,                             /* B */
1337                 &logon_script_len, &logon_script,                       /* B */
1338                 &profile_path_len, &profile_path,                       /* B */
1339                 &acct_desc_len, &acct_desc,                             /* B */
1340                 &workstations_len, &workstations,                       /* B */
1341                 &unknown_str_len, &unknown_str,                         /* B */
1342                 &munged_dial_len, &munged_dial,                         /* B */
1343                 &user_rid,                                              /* d */
1344                 &group_rid,                                             /* d */
1345                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1346                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1347                 /* Change from V1 is addition of password history field. */
1348                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1349                 &acct_ctrl,                                             /* w */
1350                 /* Also "remove_me" field was removed. */
1351                 &logon_divs,                                            /* w */
1352                 &hours_len,                                             /* d */
1353                 &hourslen, &hours,                                      /* B */
1354                 &bad_password_count,                                    /* w */
1355                 &logon_count,                                           /* w */
1356                 &unknown_6);                                            /* d */
1357
1358         if (len == (uint32) -1)  {
1359                 ret = False;
1360                 goto done;
1361         }
1362
1363         pdb_set_logon_time(sampass, logon_time, PDB_SET);
1364         pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1365         pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1366         pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1367         pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1368         pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1369         pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1370
1371         pdb_set_username(sampass, username, PDB_SET);
1372         pdb_set_domain(sampass, domain, PDB_SET);
1373         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1374         pdb_set_fullname(sampass, fullname, PDB_SET);
1375
1376         if (homedir) {
1377                 fstrcpy( tmp_string, homedir );
1378                 if (expand_explicit) {
1379                         standard_sub_basic( username, domain, tmp_string,
1380                                             sizeof(tmp_string) );
1381                 }
1382                 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1383         }
1384         else {
1385                 pdb_set_homedir(sampass,
1386                         talloc_sub_basic(sampass, username, domain,
1387                                          lp_logon_home()),
1388                         PDB_DEFAULT);
1389         }
1390
1391         if (dir_drive)
1392                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1393         else
1394                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1395
1396         if (logon_script) {
1397                 fstrcpy( tmp_string, logon_script );
1398                 if (expand_explicit) {
1399                         standard_sub_basic( username, domain, tmp_string,
1400                                             sizeof(tmp_string) );
1401                 }
1402                 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1403         }
1404         else {
1405                 pdb_set_logon_script(sampass,
1406                         talloc_sub_basic(sampass, username, domain,
1407                                          lp_logon_script()),
1408                         PDB_DEFAULT);
1409         }
1410
1411         if (profile_path) {
1412                 fstrcpy( tmp_string, profile_path );
1413                 if (expand_explicit) {
1414                         standard_sub_basic( username, domain, tmp_string,
1415                                             sizeof(tmp_string) );
1416                 }
1417                 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1418         }
1419         else {
1420                 pdb_set_profile_path(sampass,
1421                         talloc_sub_basic(sampass, username, domain,
1422                                          lp_logon_path()),
1423                         PDB_DEFAULT);
1424         }
1425
1426         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1427         pdb_set_workstations(sampass, workstations, PDB_SET);
1428         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1429
1430         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1431                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1432                         ret = False;
1433                         goto done;
1434                 }
1435         }
1436
1437         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1438                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1439                         ret = False;
1440                         goto done;
1441                 }
1442         }
1443
1444         /* Change from V1 is addition of password history field. */
1445         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1446         if (pwHistLen) {
1447                 uint8 *pw_hist = SMB_MALLOC_ARRAY(uint8, pwHistLen * PW_HISTORY_ENTRY_LEN);
1448                 if (!pw_hist) {
1449                         ret = False;
1450                         goto done;
1451                 }
1452                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1453                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1454                         int i;
1455                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1456                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1457                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1458                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1459                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1460                                         PW_HISTORY_ENTRY_LEN);
1461                         }
1462                 }
1463                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1464                         SAFE_FREE(pw_hist);
1465                         ret = False;
1466                         goto done;
1467                 }
1468                 SAFE_FREE(pw_hist);
1469         } else {
1470                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1471         }
1472
1473         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1474         pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1475         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1476         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1477         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1478         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1479         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1480         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1481         pdb_set_hours(sampass, hours, PDB_SET);
1482
1483 done:
1484
1485         SAFE_FREE(username);
1486         SAFE_FREE(domain);
1487         SAFE_FREE(nt_username);
1488         SAFE_FREE(fullname);
1489         SAFE_FREE(homedir);
1490         SAFE_FREE(dir_drive);
1491         SAFE_FREE(logon_script);
1492         SAFE_FREE(profile_path);
1493         SAFE_FREE(acct_desc);
1494         SAFE_FREE(workstations);
1495         SAFE_FREE(munged_dial);
1496         SAFE_FREE(unknown_str);
1497         SAFE_FREE(lm_pw_ptr);
1498         SAFE_FREE(nt_pw_ptr);
1499         SAFE_FREE(nt_pw_hist_ptr);
1500         SAFE_FREE(hours);
1501
1502         return ret;
1503 }
1504
1505 /*********************************************************************
1506 *********************************************************************/
1507
1508 static bool init_samu_from_buffer_v3(struct samu *sampass, uint8 *buf, uint32 buflen)
1509 {
1510
1511         /* times are stored as 32bit integer
1512            take care on system with 64bit wide time_t
1513            --SSS */
1514         uint32  logon_time,
1515                 logoff_time,
1516                 kickoff_time,
1517                 bad_password_time,
1518                 pass_last_set_time,
1519                 pass_can_change_time,
1520                 pass_must_change_time;
1521         char *username = NULL;
1522         char *domain = NULL;
1523         char *nt_username = NULL;
1524         char *dir_drive = NULL;
1525         char *unknown_str = NULL;
1526         char *munged_dial = NULL;
1527         char *fullname = NULL;
1528         char *homedir = NULL;
1529         char *logon_script = NULL;
1530         char *profile_path = NULL;
1531         char *acct_desc = NULL;
1532         char *workstations = NULL;
1533         uint32  username_len, domain_len, nt_username_len,
1534                 dir_drive_len, unknown_str_len, munged_dial_len,
1535                 fullname_len, homedir_len, logon_script_len,
1536                 profile_path_len, acct_desc_len, workstations_len;
1537
1538         uint32  user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
1539         uint16  logon_divs;
1540         uint16  bad_password_count, logon_count;
1541         uint8   *hours = NULL;
1542         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1543         uint32          len = 0;
1544         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1545         uint32 pwHistLen = 0;
1546         bool ret = True;
1547         fstring tmp_string;
1548         bool expand_explicit = lp_passdb_expand_explicit();
1549
1550         if(sampass == NULL || buf == NULL) {
1551                 DEBUG(0, ("init_samu_from_buffer_v3: NULL parameters found!\n"));
1552                 return False;
1553         }
1554
1555 /* SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1556
1557         /* unpack the buffer into variables */
1558         len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V3,
1559                 &logon_time,                                            /* d */
1560                 &logoff_time,                                           /* d */
1561                 &kickoff_time,                                          /* d */
1562                 &bad_password_time,                                     /* d */
1563                 &pass_last_set_time,                                    /* d */
1564                 &pass_can_change_time,                                  /* d */
1565                 &pass_must_change_time,                                 /* d */
1566                 &username_len, &username,                               /* B */
1567                 &domain_len, &domain,                                   /* B */
1568                 &nt_username_len, &nt_username,                         /* B */
1569                 &fullname_len, &fullname,                               /* B */
1570                 &homedir_len, &homedir,                                 /* B */
1571                 &dir_drive_len, &dir_drive,                             /* B */
1572                 &logon_script_len, &logon_script,                       /* B */
1573                 &profile_path_len, &profile_path,                       /* B */
1574                 &acct_desc_len, &acct_desc,                             /* B */
1575                 &workstations_len, &workstations,                       /* B */
1576                 &unknown_str_len, &unknown_str,                         /* B */
1577                 &munged_dial_len, &munged_dial,                         /* B */
1578                 &user_rid,                                              /* d */
1579                 &group_rid,                                             /* d */
1580                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
1581                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
1582                 /* Change from V1 is addition of password history field. */
1583                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
1584                 /* Change from V2 is the uint32 acb_mask */
1585                 &acct_ctrl,                                             /* d */
1586                 /* Also "remove_me" field was removed. */
1587                 &logon_divs,                                            /* w */
1588                 &hours_len,                                             /* d */
1589                 &hourslen, &hours,                                      /* B */
1590                 &bad_password_count,                                    /* w */
1591                 &logon_count,                                           /* w */
1592                 &unknown_6);                                            /* d */
1593
1594         if (len == (uint32) -1)  {
1595                 ret = False;
1596                 goto done;
1597         }
1598
1599         pdb_set_logon_time(sampass, convert_uint32_to_time_t(logon_time), PDB_SET);
1600         pdb_set_logoff_time(sampass, convert_uint32_to_time_t(logoff_time), PDB_SET);
1601         pdb_set_kickoff_time(sampass, convert_uint32_to_time_t(kickoff_time), PDB_SET);
1602         pdb_set_bad_password_time(sampass, convert_uint32_to_time_t(bad_password_time), PDB_SET);
1603         pdb_set_pass_can_change_time(sampass, convert_uint32_to_time_t(pass_can_change_time), PDB_SET);
1604         pdb_set_pass_must_change_time(sampass, convert_uint32_to_time_t(pass_must_change_time), PDB_SET);
1605         pdb_set_pass_last_set_time(sampass, convert_uint32_to_time_t(pass_last_set_time), PDB_SET);
1606
1607         pdb_set_username(sampass, username, PDB_SET);
1608         pdb_set_domain(sampass, domain, PDB_SET);
1609         pdb_set_nt_username(sampass, nt_username, PDB_SET);
1610         pdb_set_fullname(sampass, fullname, PDB_SET);
1611
1612         if (homedir) {
1613                 fstrcpy( tmp_string, homedir );
1614                 if (expand_explicit) {
1615                         standard_sub_basic( username, domain, tmp_string,
1616                                             sizeof(tmp_string) );
1617                 }
1618                 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1619         }
1620         else {
1621                 pdb_set_homedir(sampass,
1622                         talloc_sub_basic(sampass, username, domain,
1623                                          lp_logon_home()),
1624                         PDB_DEFAULT);
1625         }
1626
1627         if (dir_drive)
1628                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1629         else
1630                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1631
1632         if (logon_script) {
1633                 fstrcpy( tmp_string, logon_script );
1634                 if (expand_explicit) {
1635                         standard_sub_basic( username, domain, tmp_string,
1636                                             sizeof(tmp_string) );
1637                 }
1638                 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1639         }
1640         else {
1641                 pdb_set_logon_script(sampass,
1642                         talloc_sub_basic(sampass, username, domain,
1643                                          lp_logon_script()),
1644                         PDB_DEFAULT);
1645         }
1646
1647         if (profile_path) {
1648                 fstrcpy( tmp_string, profile_path );
1649                 if (expand_explicit) {
1650                         standard_sub_basic( username, domain, tmp_string,
1651                                             sizeof(tmp_string) );
1652                 }
1653                 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1654         }
1655         else {
1656                 pdb_set_profile_path(sampass,
1657                         talloc_sub_basic(sampass, username, domain, lp_logon_path()),
1658                         PDB_DEFAULT);
1659         }
1660
1661         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1662         pdb_set_workstations(sampass, workstations, PDB_SET);
1663         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1664
1665         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1666                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1667                         ret = False;
1668                         goto done;
1669                 }
1670         }
1671
1672         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1673                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1674                         ret = False;
1675                         goto done;
1676                 }
1677         }
1678
1679         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1680         if (pwHistLen) {
1681                 uint8 *pw_hist = (uint8 *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1682                 if (!pw_hist) {
1683                         ret = False;
1684                         goto done;
1685                 }
1686                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1687                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1688                         int i;
1689                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1690                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1691                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1692                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1693                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1694                                         PW_HISTORY_ENTRY_LEN);
1695                         }
1696                 }
1697                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1698                         SAFE_FREE(pw_hist);
1699                         ret = False;
1700                         goto done;
1701                 }
1702                 SAFE_FREE(pw_hist);
1703         } else {
1704                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1705         }
1706
1707         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1708         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1709         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1710         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1711         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1712         /* Change from V2 is the uint32 acct_ctrl */
1713         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1714         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1715         pdb_set_hours(sampass, hours, PDB_SET);
1716
1717 done:
1718
1719         SAFE_FREE(username);
1720         SAFE_FREE(domain);
1721         SAFE_FREE(nt_username);
1722         SAFE_FREE(fullname);
1723         SAFE_FREE(homedir);
1724         SAFE_FREE(dir_drive);
1725         SAFE_FREE(logon_script);
1726         SAFE_FREE(profile_path);
1727         SAFE_FREE(acct_desc);
1728         SAFE_FREE(workstations);
1729         SAFE_FREE(munged_dial);
1730         SAFE_FREE(unknown_str);
1731         SAFE_FREE(lm_pw_ptr);
1732         SAFE_FREE(nt_pw_ptr);
1733         SAFE_FREE(nt_pw_hist_ptr);
1734         SAFE_FREE(hours);
1735
1736         return ret;
1737 }
1738
1739 /*********************************************************************
1740 *********************************************************************/
1741
1742 static uint32 init_buffer_from_samu_v3 (uint8 **buf, struct samu *sampass, bool size_only)
1743 {
1744         size_t len, buflen;
1745
1746         /* times are stored as 32bit integer
1747            take care on system with 64bit wide time_t
1748            --SSS */
1749         uint32  logon_time,
1750                 logoff_time,
1751                 kickoff_time,
1752                 bad_password_time,
1753                 pass_last_set_time,
1754                 pass_can_change_time,
1755                 pass_must_change_time;
1756
1757         uint32  user_rid, group_rid;
1758
1759         const char *username;
1760         const char *domain;
1761         const char *nt_username;
1762         const char *dir_drive;
1763         const char *unknown_str;
1764         const char *munged_dial;
1765         const char *fullname;
1766         const char *homedir;
1767         const char *logon_script;
1768         const char *profile_path;
1769         const char *acct_desc;
1770         const char *workstations;
1771         uint32  username_len, domain_len, nt_username_len,
1772                 dir_drive_len, unknown_str_len, munged_dial_len,
1773                 fullname_len, homedir_len, logon_script_len,
1774                 profile_path_len, acct_desc_len, workstations_len;
1775
1776         const uint8 *lm_pw;
1777         const uint8 *nt_pw;
1778         const uint8 *nt_pw_hist;
1779         uint32  lm_pw_len = 16;
1780         uint32  nt_pw_len = 16;
1781         uint32  nt_pw_hist_len;
1782         uint32 pwHistLen = 0;
1783
1784         *buf = NULL;
1785         buflen = 0;
1786
1787         logon_time = convert_time_t_to_uint32(pdb_get_logon_time(sampass));
1788         logoff_time = convert_time_t_to_uint32(pdb_get_logoff_time(sampass));
1789         kickoff_time = convert_time_t_to_uint32(pdb_get_kickoff_time(sampass));
1790         bad_password_time = convert_time_t_to_uint32(pdb_get_bad_password_time(sampass));
1791         pass_can_change_time = convert_time_t_to_uint32(pdb_get_pass_can_change_time_noncalc(sampass));
1792         pass_must_change_time = convert_time_t_to_uint32(pdb_get_pass_must_change_time(sampass));
1793         pass_last_set_time = convert_time_t_to_uint32(pdb_get_pass_last_set_time(sampass));
1794
1795         user_rid = pdb_get_user_rid(sampass);
1796         group_rid = pdb_get_group_rid(sampass);
1797
1798         username = pdb_get_username(sampass);
1799         if (username) {
1800                 username_len = strlen(username) +1;
1801         } else {
1802                 username_len = 0;
1803         }
1804
1805         domain = pdb_get_domain(sampass);
1806         if (domain) {
1807                 domain_len = strlen(domain) +1;
1808         } else {
1809                 domain_len = 0;
1810         }
1811
1812         nt_username = pdb_get_nt_username(sampass);
1813         if (nt_username) {
1814                 nt_username_len = strlen(nt_username) +1;
1815         } else {
1816                 nt_username_len = 0;
1817         }
1818
1819         fullname = pdb_get_fullname(sampass);
1820         if (fullname) {
1821                 fullname_len = strlen(fullname) +1;
1822         } else {
1823                 fullname_len = 0;
1824         }
1825
1826         /*
1827          * Only updates fields which have been set (not defaults from smb.conf)
1828          */
1829
1830         if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1831                 dir_drive = pdb_get_dir_drive(sampass);
1832         } else {
1833                 dir_drive = NULL;
1834         }
1835         if (dir_drive) {
1836                 dir_drive_len = strlen(dir_drive) +1;
1837         } else {
1838                 dir_drive_len = 0;
1839         }
1840
1841         if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1842                 homedir = pdb_get_homedir(sampass);
1843         } else {
1844                 homedir = NULL;
1845         }
1846         if (homedir) {
1847                 homedir_len = strlen(homedir) +1;
1848         } else {
1849                 homedir_len = 0;
1850         }
1851
1852         if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1853                 logon_script = pdb_get_logon_script(sampass);
1854         } else {
1855                 logon_script = NULL;
1856         }
1857         if (logon_script) {
1858                 logon_script_len = strlen(logon_script) +1;
1859         } else {
1860                 logon_script_len = 0;
1861         }
1862
1863         if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1864                 profile_path = pdb_get_profile_path(sampass);
1865         } else {
1866                 profile_path = NULL;
1867         }
1868         if (profile_path) {
1869                 profile_path_len = strlen(profile_path) +1;
1870         } else {
1871                 profile_path_len = 0;
1872         }
1873
1874         lm_pw = pdb_get_lanman_passwd(sampass);
1875         if (!lm_pw) {
1876                 lm_pw_len = 0;
1877         }
1878
1879         nt_pw = pdb_get_nt_passwd(sampass);
1880         if (!nt_pw) {
1881                 nt_pw_len = 0;
1882         }
1883
1884         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1885         nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
1886         if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1887                 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1888         } else {
1889                 nt_pw_hist_len = 0;
1890         }
1891
1892         acct_desc = pdb_get_acct_desc(sampass);
1893         if (acct_desc) {
1894                 acct_desc_len = strlen(acct_desc) +1;
1895         } else {
1896                 acct_desc_len = 0;
1897         }
1898
1899         workstations = pdb_get_workstations(sampass);
1900         if (workstations) {
1901                 workstations_len = strlen(workstations) +1;
1902         } else {
1903                 workstations_len = 0;
1904         }
1905
1906         unknown_str = NULL;
1907         unknown_str_len = 0;
1908
1909         munged_dial = pdb_get_munged_dial(sampass);
1910         if (munged_dial) {
1911                 munged_dial_len = strlen(munged_dial) +1;
1912         } else {
1913                 munged_dial_len = 0;
1914         }
1915
1916 /* SAMU_BUFFER_FORMAT_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1917
1918         /* one time to get the size needed */
1919         len = tdb_pack(NULL, 0,  SAMU_BUFFER_FORMAT_V3,
1920                 logon_time,                             /* d */
1921                 logoff_time,                            /* d */
1922                 kickoff_time,                           /* d */
1923                 bad_password_time,                      /* d */
1924                 pass_last_set_time,                     /* d */
1925                 pass_can_change_time,                   /* d */
1926                 pass_must_change_time,                  /* d */
1927                 username_len, username,                 /* B */
1928                 domain_len, domain,                     /* B */
1929                 nt_username_len, nt_username,           /* B */
1930                 fullname_len, fullname,                 /* B */
1931                 homedir_len, homedir,                   /* B */
1932                 dir_drive_len, dir_drive,               /* B */
1933                 logon_script_len, logon_script,         /* B */
1934                 profile_path_len, profile_path,         /* B */
1935                 acct_desc_len, acct_desc,               /* B */
1936                 workstations_len, workstations,         /* B */
1937                 unknown_str_len, unknown_str,           /* B */
1938                 munged_dial_len, munged_dial,           /* B */
1939                 user_rid,                               /* d */
1940                 group_rid,                              /* d */
1941                 lm_pw_len, lm_pw,                       /* B */
1942                 nt_pw_len, nt_pw,                       /* B */
1943                 nt_pw_hist_len, nt_pw_hist,             /* B */
1944                 pdb_get_acct_ctrl(sampass),             /* d */
1945                 pdb_get_logon_divs(sampass),            /* w */
1946                 pdb_get_hours_len(sampass),             /* d */
1947                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1948                 pdb_get_bad_password_count(sampass),    /* w */
1949                 pdb_get_logon_count(sampass),           /* w */
1950                 pdb_get_unknown_6(sampass));            /* d */
1951
1952         if (size_only) {
1953                 return buflen;
1954         }
1955
1956         /* malloc the space needed */
1957         if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
1958                 DEBUG(0,("init_buffer_from_samu_v3: Unable to malloc() memory for buffer!\n"));
1959                 return (-1);
1960         }
1961
1962         /* now for the real call to tdb_pack() */
1963         buflen = tdb_pack(*buf, len,  SAMU_BUFFER_FORMAT_V3,
1964                 logon_time,                             /* d */
1965                 logoff_time,                            /* d */
1966                 kickoff_time,                           /* d */
1967                 bad_password_time,                      /* d */
1968                 pass_last_set_time,                     /* d */
1969                 pass_can_change_time,                   /* d */
1970                 pass_must_change_time,                  /* d */
1971                 username_len, username,                 /* B */
1972                 domain_len, domain,                     /* B */
1973                 nt_username_len, nt_username,           /* B */
1974                 fullname_len, fullname,                 /* B */
1975                 homedir_len, homedir,                   /* B */
1976                 dir_drive_len, dir_drive,               /* B */
1977                 logon_script_len, logon_script,         /* B */
1978                 profile_path_len, profile_path,         /* B */
1979                 acct_desc_len, acct_desc,               /* B */
1980                 workstations_len, workstations,         /* B */
1981                 unknown_str_len, unknown_str,           /* B */
1982                 munged_dial_len, munged_dial,           /* B */
1983                 user_rid,                               /* d */
1984                 group_rid,                              /* d */
1985                 lm_pw_len, lm_pw,                       /* B */
1986                 nt_pw_len, nt_pw,                       /* B */
1987                 nt_pw_hist_len, nt_pw_hist,             /* B */
1988                 pdb_get_acct_ctrl(sampass),             /* d */
1989                 pdb_get_logon_divs(sampass),            /* w */
1990                 pdb_get_hours_len(sampass),             /* d */
1991                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1992                 pdb_get_bad_password_count(sampass),    /* w */
1993                 pdb_get_logon_count(sampass),           /* w */
1994                 pdb_get_unknown_6(sampass));            /* d */
1995
1996         /* check to make sure we got it correct */
1997         if (buflen != len) {
1998                 DEBUG(0, ("init_buffer_from_samu_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
1999                           (unsigned long)buflen, (unsigned long)len));
2000                 /* error */
2001                 SAFE_FREE (*buf);
2002                 return (-1);
2003         }
2004
2005         return (buflen);
2006 }
2007
2008 static bool init_samu_from_buffer_v4(struct samu *sampass, uint8 *buf, uint32 buflen)
2009 {
2010         /* nothing changed between V3 and V4 */
2011         return init_samu_from_buffer_v3(sampass, buf, buflen);
2012 }
2013
2014 static uint32 init_buffer_from_samu_v4(uint8 **buf, struct samu *sampass, bool size_only)
2015 {
2016         /* nothing changed between V3 and V4 */
2017         return init_buffer_from_samu_v3(buf, sampass, size_only);
2018 }
2019
2020 /**********************************************************************
2021  Intialize a struct samu struct from a BYTE buffer of size len
2022  *********************************************************************/
2023
2024 bool init_samu_from_buffer(struct samu *sampass, uint32_t level,
2025                            uint8 *buf, uint32 buflen)
2026 {
2027         switch (level) {
2028         case SAMU_BUFFER_V0:
2029                 return init_samu_from_buffer_v0(sampass, buf, buflen);
2030         case SAMU_BUFFER_V1:
2031                 return init_samu_from_buffer_v1(sampass, buf, buflen);
2032         case SAMU_BUFFER_V2:
2033                 return init_samu_from_buffer_v2(sampass, buf, buflen);
2034         case SAMU_BUFFER_V3:
2035                 return init_samu_from_buffer_v3(sampass, buf, buflen);
2036         case SAMU_BUFFER_V4:
2037                 return init_samu_from_buffer_v4(sampass, buf, buflen);
2038         }
2039
2040         return false;
2041 }
2042
2043 /**********************************************************************
2044  Intialize a BYTE buffer from a struct samu struct
2045  *********************************************************************/
2046
2047 uint32 init_buffer_from_samu (uint8 **buf, struct samu *sampass, bool size_only)
2048 {
2049         return init_buffer_from_samu_v4(buf, sampass, size_only);
2050 }
2051
2052 /*********************************************************************
2053 *********************************************************************/
2054
2055 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
2056 {
2057         uint8 *buf = NULL;
2058         int len;
2059
2060         len = init_buffer_from_samu(&buf, src, False);
2061         if (len == -1 || !buf) {
2062                 SAFE_FREE(buf);
2063                 return False;
2064         }
2065
2066         if (!init_samu_from_buffer( dst, SAMU_BUFFER_LATEST, buf, len )) {
2067                 free(buf);
2068                 return False;
2069         }
2070
2071         dst->methods = src->methods;
2072
2073         if ( src->unix_pw ) {
2074                 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
2075                 if (!dst->unix_pw) {
2076                         free(buf);
2077                         return False;
2078                 }
2079         }
2080
2081         free(buf);
2082         return True;
2083 }
2084
2085 /*********************************************************************
2086  Update the bad password count checking the AP_RESET_COUNT_TIME
2087 *********************************************************************/
2088
2089 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
2090 {
2091         time_t LastBadPassword;
2092         uint16 BadPasswordCount;
2093         uint32 resettime;
2094         bool res;
2095
2096         BadPasswordCount = pdb_get_bad_password_count(sampass);
2097         if (!BadPasswordCount) {
2098                 DEBUG(9, ("No bad password attempts.\n"));
2099                 return True;
2100         }
2101
2102         become_root();
2103         res = pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime);
2104         unbecome_root();
2105
2106         if (!res) {
2107                 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2108                 return False;
2109         }
2110
2111         /* First, check if there is a reset time to compare */
2112         if ((resettime == (uint32) -1) || (resettime == 0)) {
2113                 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2114                 return True;
2115         }
2116
2117         LastBadPassword = pdb_get_bad_password_time(sampass);
2118         DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2119                    (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2120         if (time(NULL) > (LastBadPassword + convert_uint32_to_time_t(resettime)*60)){
2121                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2122                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2123                 if (updated) {
2124                         *updated = True;
2125                 }
2126         }
2127
2128         return True;
2129 }
2130
2131 /*********************************************************************
2132  Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2133 *********************************************************************/
2134
2135 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
2136 {
2137         uint32 duration;
2138         time_t LastBadPassword;
2139         bool res;
2140
2141         if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2142                 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2143                         pdb_get_username(sampass)));
2144                 return True;
2145         }
2146
2147         become_root();
2148         res = pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration);
2149         unbecome_root();
2150
2151         if (!res) {
2152                 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2153                 return False;
2154         }
2155
2156         /* First, check if there is a duration to compare */
2157         if ((duration == (uint32) -1)  || (duration == 0)) {
2158                 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2159                 return True;
2160         }
2161
2162         LastBadPassword = pdb_get_bad_password_time(sampass);
2163         DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2164                   pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2165
2166         if (LastBadPassword == (time_t)0) {
2167                 DEBUG(1,("pdb_update_autolock_flag: Account %s "
2168                          "administratively locked out with no bad password "
2169                          "time. Leaving locked out.\n",
2170                          pdb_get_username(sampass) ));
2171                 return True;
2172         }
2173
2174         if ((time(NULL) > (LastBadPassword + convert_uint32_to_time_t(duration) * 60))) {
2175                 pdb_set_acct_ctrl(sampass,
2176                                   pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2177                                   PDB_CHANGED);
2178                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2179                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2180                 if (updated) {
2181                         *updated = True;
2182                 }
2183         }
2184
2185         return True;
2186 }
2187
2188 /*********************************************************************
2189  Increment the bad_password_count
2190 *********************************************************************/
2191
2192 bool pdb_increment_bad_password_count(struct samu *sampass)
2193 {
2194         uint32 account_policy_lockout;
2195         bool autolock_updated = False, badpw_updated = False;
2196         bool ret;
2197
2198         /* Retrieve the account lockout policy */
2199         become_root();
2200         ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2201         unbecome_root();
2202         if ( !ret ) {
2203                 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2204                 return False;
2205         }
2206
2207         /* If there is no policy, we don't need to continue checking */
2208         if (!account_policy_lockout) {
2209                 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2210                 return True;
2211         }
2212
2213         /* Check if the autolock needs to be cleared */
2214         if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2215                 return False;
2216
2217         /* Check if the badpw count needs to be reset */
2218         if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2219                 return False;
2220
2221         /*
2222           Ok, now we can assume that any resetting that needs to be
2223           done has been done, and just get on with incrementing
2224           and autolocking if necessary
2225         */
2226
2227         pdb_set_bad_password_count(sampass,
2228                                    pdb_get_bad_password_count(sampass)+1,
2229                                    PDB_CHANGED);
2230         pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2231
2232
2233         if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2234                 return True;
2235
2236         if (!pdb_set_acct_ctrl(sampass,
2237                                pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2238                                PDB_CHANGED)) {
2239                 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2240                 return False;
2241         }
2242
2243         return True;
2244 }
2245
2246 bool is_dc_trusted_domain_situation(const char *domain_name)
2247 {
2248         return IS_DC && !strequal(domain_name, lp_workgroup());
2249 }
2250
2251 /*******************************************************************
2252  Wrapper around retrieving the clear text trust account password.
2253  appropriate account name is stored in account_name.
2254  Caller must free password, but not account_name.
2255 *******************************************************************/
2256
2257 bool get_trust_pw_clear(const char *domain, char **ret_pwd,
2258                         const char **account_name, uint32 *channel)
2259 {
2260         char *pwd;
2261         time_t last_set_time;
2262
2263         /* if we are a DC and this is not our domain, then lookup an account
2264          * for the domain trust */
2265
2266         if (is_dc_trusted_domain_situation(domain)) {
2267                 if (!lp_allow_trusted_domains()) {
2268                         return false;
2269                 }
2270
2271                 if (!pdb_get_trusteddom_pw(domain, ret_pwd, NULL,
2272                                            &last_set_time))
2273                 {
2274                         DEBUG(0, ("get_trust_pw: could not fetch trust "
2275                                 "account password for trusted domain %s\n",
2276                                 domain));
2277                         return false;
2278                 }
2279
2280                 if (channel != NULL) {
2281                         *channel = SEC_CHAN_DOMAIN;
2282                 }
2283
2284                 if (account_name != NULL) {
2285                         *account_name = lp_workgroup();
2286                 }
2287
2288                 return true;
2289         }
2290
2291         /*
2292          * Since we can only be member of one single domain, we are now
2293          * in a member situation:
2294          *
2295          *  -  Either we are a DC (selfjoined) and the domain is our
2296          *     own domain.
2297          *  -  Or we are on a member and the domain is our own or some
2298          *     other (potentially trusted) domain.
2299          *
2300          * In both cases, we can only get the machine account password
2301          * for our own domain to connect to our own dc. (For a member,
2302          * request to trusted domains are performed through our dc.)
2303          *
2304          * So we simply use our own domain name to retrieve the
2305          * machine account passowrd and ignore the request domain here.
2306          */
2307
2308         pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
2309
2310         if (pwd != NULL) {
2311                 *ret_pwd = pwd;
2312                 if (account_name != NULL) {
2313                         *account_name = global_myname();
2314                 }
2315
2316                 return true;
2317         }
2318
2319         DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
2320                   "account password for domain %s\n", domain));
2321         return false;
2322 }
2323
2324 /*******************************************************************
2325  Wrapper around retrieving the trust account password.
2326  appropriate account name is stored in account_name.
2327 *******************************************************************/
2328
2329 bool get_trust_pw_hash(const char *domain, uint8 ret_pwd[16],
2330                        const char **account_name, uint32 *channel)
2331 {
2332         char *pwd = NULL;
2333         time_t last_set_time;
2334
2335         if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
2336                 E_md4hash(pwd, ret_pwd);
2337                 SAFE_FREE(pwd);
2338                 return true;
2339         } else if (is_dc_trusted_domain_situation(domain)) {
2340                 return false;
2341         }
2342
2343         /* as a fallback, try to get the hashed pwd directly from the tdb... */
2344
2345         if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
2346                                                         &last_set_time,
2347                                                         channel))
2348         {
2349                 if (account_name != NULL) {
2350                         *account_name = global_myname();
2351                 }
2352
2353                 return true;
2354         }
2355
2356         DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
2357                 "password for domain %s\n", domain));
2358         return False;
2359 }
2360
2361 struct samr_LogonHours get_logon_hours_from_pdb(TALLOC_CTX *mem_ctx,
2362                                                 struct samu *pw)
2363 {
2364         struct samr_LogonHours hours;
2365         const int units_per_week = 168;
2366
2367         ZERO_STRUCT(hours);
2368         hours.bits = talloc_array(mem_ctx, uint8_t, units_per_week);
2369         if (!hours.bits) {
2370                 return hours;
2371         }
2372
2373         hours.units_per_week = units_per_week;
2374         memset(hours.bits, 0xFF, units_per_week);
2375
2376         if (pdb_get_hours(pw)) {
2377                 memcpy(hours.bits, pdb_get_hours(pw),
2378                        MIN(pdb_get_hours_len(pw), units_per_week));
2379         }
2380
2381         return hours;
2382 }