source3/passdb/passdb.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Jeremy Allison                 1996-2001
   5    Copyright (C) Luke Kenneth Casson Leighton   1996-1998
   6    Copyright (C) Gerald (Jerry) Carter          2000-2001
   7    Copyright (C) Andrew Bartlett                2001-2002
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_PASSDB
  28
  29 /*
  30  * This is set on startup - it defines the SID for this
  31  * machine, and therefore the SAM database for which it is
  32  * responsible.
  33  */
  34
  35 extern DOM_SID global_sam_sid;
  36 extern pstring global_myname;
  37
  38 /************************************************************
  39  Fill the SAM_ACCOUNT with default values.
  40  ***********************************************************/
  41
  42 static void pdb_fill_default_sam(SAM_ACCOUNT *user)
  43 {
  44         ZERO_STRUCT(user->private); /* Don't touch the talloc context */
  45
  46         /* Don't change these timestamp settings without a good reason.
  47            They are important for NT member server compatibility. */
  48
  49         user->private.init_flag             = FLAG_SAM_UNINIT;
  50         user->private.uid = user->private.gid       = -1;
  51
  52         user->private.logon_time            = (time_t)0;
  53         user->private.pass_last_set_time    = (time_t)0;
  54         user->private.pass_can_change_time  = (time_t)0;
  55         user->private.logoff_time           =
  56         user->private.kickoff_time          =
  57         user->private.pass_must_change_time = get_time_t_max();
  58         user->private.unknown_3 = 0x00ffffff;   /* don't know */
  59         user->private.logon_divs = 168;         /* hours per week */
  60         user->private.hours_len = 21;           /* 21 times 8 bits = 168 */
  61         memset(user->private.hours, 0xff, user->private.hours_len); /* available at all hours */
  62         user->private.unknown_5 = 0x00000000; /* don't know */
  63         user->private.unknown_6 = 0x000004ec; /* don't know */
  64
  65         /* Some parts of samba strlen their pdb_get...() returns,
  66            so this keeps the interface unchanged for now. */
  67
  68         user->private.username = "";
  69         user->private.domain = "";
  70         user->private.nt_username = "";
  71         user->private.full_name = "";
  72         user->private.home_dir = "";
  73         user->private.logon_script = "";
  74         user->private.profile_path = "";
  75         user->private.acct_desc = "";
  76         user->private.workstations = "";
  77         user->private.unknown_str = "";
  78         user->private.munged_dial = "";
  79 }
  80
  81 static void destroy_pdb_talloc(SAM_ACCOUNT **user)
  82 {
  83         if (*user) {
  84                 talloc_destroy((*user)->mem_ctx);
  85                 *user = NULL;
  86         }
  87 }
  88
  89
  90 /**********************************************************************
  91  Alloc memory and initialises a struct sam_passwd on supplied mem_ctx.
  92 ***********************************************************************/
  93
  94 NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
  95 {
  96         if (*user != NULL) {
  97                 DEBUG(0,("pdb_init_sam: SAM_ACCOUNT was non NULL\n"));
  98 #if 0
  99                 smb_panic("non-NULL pointer passed to pdb_init_sam\n");
 100 #endif
 101                 return NT_STATUS_UNSUCCESSFUL;
 102         }
 103
 104         if (!mem_ctx) {
 105                 DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
 106                 return NT_STATUS_UNSUCCESSFUL;
 107         }
 108
 109         *user=(SAM_ACCOUNT *)talloc(mem_ctx, sizeof(SAM_ACCOUNT));
 110
 111         if (*user==NULL) {
 112                 DEBUG(0,("pdb_init_sam: error while allocating memory\n"));
 113                 return NT_STATUS_NO_MEMORY;
 114         }
 115
 116         (*user)->mem_ctx = mem_ctx;
 117
 118         (*user)->free_fn = NULL;
 119
 120         pdb_fill_default_sam(*user);
 121
 122         return NT_STATUS_OK;
 123 }
 124
 125
 126 /*************************************************************
 127  Alloc memory and initialises a struct sam_passwd.
 128  ************************************************************/
 129
 130 NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
 131 {
 132         TALLOC_CTX *mem_ctx;
 133         NTSTATUS nt_status;
 134
 135         mem_ctx = talloc_init_named("passdb internal SAM_ACCOUNT allocation");
 136
 137         if (!mem_ctx) {
 138                 DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
 139                 return NT_STATUS_NO_MEMORY;
 140         }
 141
 142         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
 143                 talloc_destroy(mem_ctx);
 144                 return nt_status;
 145         }
 146
 147         (*user)->free_fn = destroy_pdb_talloc;
 148
 149         return NT_STATUS_OK;
 150 }
 151
 152
 153 /*************************************************************
 154  Initialises a struct sam_passwd with sane values.
 155  ************************************************************/
 156
 157 NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
 158 {
 159         GROUP_MAP map;
 160         uint32 rid;
 161
 162         if (!pwd) {
 163                 return NT_STATUS_UNSUCCESSFUL;
 164         }
 165
 166         pdb_fill_default_sam(sam_account);
 167
 168         pdb_set_username(sam_account, pwd->pw_name);
 169         pdb_set_fullname(sam_account, pwd->pw_gecos);
 170
 171         pdb_set_unix_homedir(sam_account, pwd->pw_dir);
 172
 173         pdb_set_domain (sam_account, lp_workgroup());
 174
 175         pdb_set_uid(sam_account, pwd->pw_uid);
 176         pdb_set_gid(sam_account, pwd->pw_gid);
 177
 178         /* When we get a proper uid -> SID and SID -> uid allocation
 179            mechinism, we should call it here.
 180
 181            We can't just set this to 0 or allow it only to be filled
 182            in when added to the backend, becouse the user's SID
 183            may already be in security descriptors etc.
 184
 185            -- abartlet 11-May-02
 186         */
 187
 188         pdb_set_user_rid(sam_account,
 189                          fallback_pdb_uid_to_user_rid(pwd->pw_uid));
 190
 191         /* call the mapping code here */
 192         if(get_group_map_from_gid(pwd->pw_gid, &map, MAPPING_WITHOUT_PRIV)) {
 193                 sid_peek_rid(&map.sid, &rid);
 194         }
 195         else {
 196                 rid=pdb_gid_to_group_rid(pwd->pw_gid);
 197         }
 198
 199         pdb_set_group_rid(sam_account, rid);
 200
 201         /* check if this is a user account or a machine account */
 202         if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
 203         {
 204                 pdb_set_profile_path(sam_account,
 205                                      standard_sub_specified((sam_account)->mem_ctx,
 206                                                             lp_logon_path(),
 207                                                             pwd->pw_name, global_myname,
 208                                                             pwd->pw_uid, pwd->pw_gid),
 209                                      False);
 210
 211                 pdb_set_homedir(sam_account,
 212                                 standard_sub_specified((sam_account)->mem_ctx,
 213                                                        lp_logon_home(),
 214                                                        pwd->pw_name, global_myname,
 215                                                        pwd->pw_uid, pwd->pw_gid),
 216                                 False);
 217
 218                 pdb_set_dir_drive(sam_account,
 219                                   standard_sub_specified((sam_account)->mem_ctx,
 220                                                          lp_logon_drive(),
 221                                                          pwd->pw_name, global_myname,
 222                                                          pwd->pw_uid, pwd->pw_gid),
 223                                   False);
 224
 225                 pdb_set_logon_script(sam_account,
 226                                      standard_sub_specified((sam_account)->mem_ctx,
 227                                                             lp_logon_script(),
 228                                                             pwd->pw_name, global_myname,
 229                                                             pwd->pw_uid, pwd->pw_gid),
 230                                      False);
 231         }
 232         return NT_STATUS_OK;
 233 }
 234
 235
 236 /*************************************************************
 237  Initialises a struct sam_passwd with sane values.
 238  ************************************************************/
 239
 240 NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
 241 {
 242         NTSTATUS nt_status;
 243
 244         if (!pwd) {
 245                 new_sam_acct = NULL;
 246                 return NT_STATUS_UNSUCCESSFUL;
 247         }
 248
 249         if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
 250                 new_sam_acct = NULL;
 251                 return nt_status;
 252         }
 253
 254         if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
 255                 pdb_free_sam(new_sam_acct);
 256                 new_sam_acct = NULL;
 257                 return nt_status;
 258         }
 259
 260         return NT_STATUS_OK;
 261 }
 262
 263
 264 /**
 265  * Free the contets of the SAM_ACCOUNT, but not the structure.
 266  *
 267  * Also wipes the LM and NT hashes and plaintext passwrod from
 268  * memory.
 269  *
 270  * @param user SAM_ACCOUNT to free members of.
 271  **/
 272
 273 static void pdb_free_sam_contents(SAM_ACCOUNT *user)
 274 {
 275
 276         /* Kill off sensitive data.  Free()ed by the
 277            talloc mechinism */
 278
 279         data_blob_clear_free(&(user->private.lm_pw));
 280         data_blob_clear_free(&(user->private.nt_pw));
 281         data_blob_clear_free(&(user->private.plaintext_pw));
 282 }
 283
 284
 285 /************************************************************
 286  Reset the SAM_ACCOUNT and free the NT/LM hashes.
 287  ***********************************************************/
 288
 289 NTSTATUS pdb_reset_sam(SAM_ACCOUNT *user)
 290 {
 291         if (user == NULL) {
 292                 DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
 293 #if 0
 294                 smb_panic("NULL pointer passed to pdb_free_sam\n");
 295 #endif
 296                 return NT_STATUS_UNSUCCESSFUL;
 297         }
 298
 299         pdb_free_sam_contents(user);
 300
 301         pdb_fill_default_sam(user);
 302
 303         return NT_STATUS_OK;
 304 }
 305
 306
 307 /************************************************************
 308  Free the SAM_ACCOUNT and the member pointers.
 309  ***********************************************************/
 310
 311 NTSTATUS pdb_free_sam(SAM_ACCOUNT **user)
 312 {
 313         if (*user == NULL) {
 314                 DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
 315 #if 0
 316                 smb_panic("NULL pointer passed to pdb_free_sam\n");
 317 #endif
 318                 return NT_STATUS_UNSUCCESSFUL;
 319         }
 320
 321         pdb_free_sam_contents(*user);
 322
 323         if ((*user)->free_fn) {
 324                 (*user)->free_fn(user);
 325         }
 326
 327         return NT_STATUS_OK;
 328 }
 329
 330
 331 /**********************************************************
 332  Encode the account control bits into a string.
 333  length = length of string to encode into (including terminating
 334  null). length *MUST BE MORE THAN 2* !
 335  **********************************************************/
 336
 337 char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
 338 {
 339         static fstring acct_str;
 340         size_t i = 0;
 341
 342         acct_str[i++] = '[';
 343
 344         if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
 345         if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
 346         if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
 347         if (acct_ctrl & ACB_TEMPDUP  ) acct_str[i++] = 'T';
 348         if (acct_ctrl & ACB_NORMAL   ) acct_str[i++] = 'U';
 349         if (acct_ctrl & ACB_MNS      ) acct_str[i++] = 'M';
 350         if (acct_ctrl & ACB_WSTRUST  ) acct_str[i++] = 'W';
 351         if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
 352         if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
 353         if (acct_ctrl & ACB_PWNOEXP  ) acct_str[i++] = 'X';
 354         if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
 355
 356         for ( ; i < length - 2 ; i++ )
 357                 acct_str[i] = ' ';
 358
 359         i = length - 2;
 360         acct_str[i++] = ']';
 361         acct_str[i++] = '\0';
 362
 363         return acct_str;
 364 }
 365
 366 /**********************************************************
 367  Decode the account control bits from a string.
 368  **********************************************************/
 369
 370 uint16 pdb_decode_acct_ctrl(const char *p)
 371 {
 372         uint16 acct_ctrl = 0;
 373         BOOL finished = False;
 374
 375         /*
 376          * Check if the account type bits have been encoded after the
 377          * NT password (in the form [NDHTUWSLXI]).
 378          */
 379
 380         if (*p != '[')
 381                 return 0;
 382
 383         for (p++; *p && !finished; p++) {
 384                 switch (*p) {
 385                         case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
 386                         case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
 387                         case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
 388                         case 'T': { acct_ctrl |= ACB_TEMPDUP  ; break; /* 'T'emp account. */ }
 389                         case 'U': { acct_ctrl |= ACB_NORMAL   ; break; /* 'U'ser account (normal). */ }
 390                         case 'M': { acct_ctrl |= ACB_MNS      ; break; /* 'M'NS logon user account. What is this ? */ }
 391                         case 'W': { acct_ctrl |= ACB_WSTRUST  ; break; /* 'W'orkstation account. */ }
 392                         case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
 393                         case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
 394                         case 'X': { acct_ctrl |= ACB_PWNOEXP  ; break; /* No 'X'piry on password */ }
 395                         case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
 396             case ' ': { break; }
 397                         case ':':
 398                         case '\n':
 399                         case '\0':
 400                         case ']':
 401                         default:  { finished = True; }
 402                 }
 403         }
 404
 405         return acct_ctrl;
 406 }
 407
 408 /*************************************************************
 409  Routine to set 32 hex password characters from a 16 byte array.
 410 **************************************************************/
 411
 412 void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
 413 {
 414         if (pwd != NULL) {
 415                 int i;
 416                 for (i = 0; i < 16; i++)
 417                         slprintf(&p[i*2], 3, "%02X", pwd[i]);
 418         } else {
 419                 if (acct_ctrl & ACB_PWNOTREQ)
 420                         safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
 421                 else
 422                         safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
 423         }
 424 }
 425
 426 /*************************************************************
 427  Routine to get the 32 hex characters and turn them
 428  into a 16 byte array.
 429 **************************************************************/
 430
 431 BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
 432 {
 433         int i;
 434         unsigned char   lonybble, hinybble;
 435         char           *hexchars = "0123456789ABCDEF";
 436         char           *p1, *p2;
 437
 438         if (!p)
 439                 return (False);
 440
 441         for (i = 0; i < 32; i += 2) {
 442                 hinybble = toupper(p[i]);
 443                 lonybble = toupper(p[i + 1]);
 444
 445                 p1 = strchr(hexchars, hinybble);
 446                 p2 = strchr(hexchars, lonybble);
 447
 448                 if (!p1 || !p2)
 449                         return (False);
 450
 451                 hinybble = PTR_DIFF(p1, hexchars);
 452                 lonybble = PTR_DIFF(p2, hexchars);
 453
 454                 pwd[i / 2] = (hinybble << 4) | lonybble;
 455         }
 456         return (True);
 457 }
 458
 459 #if 0 /* seem it is not used by anyone */
 460 /*******************************************************************
 461  Group and User RID username mapping function
 462  ********************************************************************/
 463
 464 BOOL pdb_name_to_rid(const char *user_name, uint32 *u_rid, uint32 *g_rid)
 465 {
 466         GROUP_MAP map;
 467         struct passwd *pw = Get_Pwnam(user_name);
 468
 469         if (u_rid == NULL || g_rid == NULL || user_name == NULL)
 470                 return False;
 471
 472         if (!pw) {
 473                 DEBUG(1,("Username %s is invalid on this system\n", user_name));
 474                 return False;
 475         }
 476
 477         /* turn the unix UID into a Domain RID.  this is what the posix
 478            sub-system does (adds 1000 to the uid) */
 479         *u_rid = fallback_pdb_uid_to_user_rid(pw->pw_uid);
 480
 481         /* absolutely no idea what to do about the unix GID to Domain RID mapping */
 482         /* map it ! */
 483         if (get_group_map_from_gid(pw->pw_gid, &map, MAPPING_WITHOUT_PRIV)) {
 484                 sid_peek_rid(&map.sid, g_rid);
 485         } else
 486                 *g_rid = pdb_gid_to_group_rid(pw->pw_gid);
 487
 488         return True;
 489 }
 490 #endif /* seem it is not used by anyone */
 491
 492 /*******************************************************************
 493  Converts NT user RID to a UNIX uid.
 494  ********************************************************************/
 495
 496 uid_t fallback_pdb_user_rid_to_uid(uint32 user_rid)
 497 {
 498         int rid_offset = lp_algorithmic_rid_base();
 499         return (uid_t)(((user_rid & (~USER_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
 500 }
 501
 502
 503 /*******************************************************************
 504  converts UNIX uid to an NT User RID.
 505  ********************************************************************/
 506
 507 uint32 fallback_pdb_uid_to_user_rid(uid_t uid)
 508 {
 509         int rid_offset = lp_algorithmic_rid_base();
 510         return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
 511 }
 512
 513 /*******************************************************************
 514  Converts NT group RID to a UNIX gid.
 515  ********************************************************************/
 516
 517 gid_t pdb_group_rid_to_gid(uint32 group_rid)
 518 {
 519         int rid_offset = lp_algorithmic_rid_base();
 520         return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
 521 }
 522
 523 /*******************************************************************
 524  converts NT Group RID to a UNIX uid.
 525
 526  warning: you must not call that function only
 527  you must do a call to the group mapping first.
 528  there is not anymore a direct link between the gid and the rid.
 529  ********************************************************************/
 530
 531 uint32 pdb_gid_to_group_rid(gid_t gid)
 532 {
 533         int rid_offset = lp_algorithmic_rid_base();
 534         return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
 535 }
 536
 537 /*******************************************************************
 538  Decides if a RID is a well known RID.
 539  ********************************************************************/
 540
 541 static BOOL pdb_rid_is_well_known(uint32 rid)
 542 {
 543         /* Not using rid_offset here, becouse this is the actual
 544            NT fixed value (1000) */
 545
 546         return (rid < BASE_RID);
 547 }
 548
 549 /*******************************************************************
 550  Decides if a RID is a user or group RID.
 551  ********************************************************************/
 552
 553 BOOL pdb_rid_is_user(uint32 rid)
 554 {
 555   /* lkcl i understand that NT attaches an enumeration to a RID
 556    * such that it can be identified as either a user, group etc
 557    * type.  there are 5 such categories, and they are documented.
 558    */
 559    if(pdb_rid_is_well_known(rid)) {
 560       /*
 561        * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
 562        * and DOMAIN_USER_RID_GUEST.
 563        */
 564      if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
 565        return True;
 566    } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
 567      return True;
 568    }
 569    return False;
 570 }
 571
 572 /*******************************************************************
 573  Convert a rid into a name. Used in the lookup SID rpc.
 574  ********************************************************************/
 575
 576 BOOL local_lookup_sid(DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
 577 {
 578         uint32 rid;
 579         SAM_ACCOUNT *sam_account = NULL;
 580         GROUP_MAP map;
 581
 582         sid_peek_rid(sid, &rid);
 583         *psid_name_use = SID_NAME_UNKNOWN;
 584
 585         DEBUG(5,("local_lookup_sid: looking up RID %u.\n", (unsigned int)rid));
 586
 587         if (rid == DOMAIN_USER_RID_ADMIN) {
 588                 char **admin_list = lp_admin_users(-1);
 589                 *psid_name_use = SID_NAME_USER;
 590                 if (admin_list) {
 591                         char *p = *admin_list;
 592                         if(!next_token(&p, name, NULL, sizeof(fstring)))
 593                                 fstrcpy(name, "Administrator");
 594                 } else {
 595                         fstrcpy(name, "Administrator");
 596                 }
 597                 return True;
 598
 599         } else if (rid == DOMAIN_USER_RID_GUEST) {
 600                 char *p = lp_guestaccount();
 601                 *psid_name_use = SID_NAME_USER;
 602                 if(!next_token(&p, name, NULL, sizeof(fstring)))
 603                         fstrcpy(name, "Guest");
 604                 return True;
 605
 606         }
 607
 608         /*
 609          * Don't try to convert the rid to a name if
 610          * running in appliance mode
 611          */
 612
 613         if (lp_hide_local_users())
 614                 return False;
 615
 616         if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
 617                 return False;
 618         }
 619
 620         /* This now does the 'generic' mapping in pdb_unix */
 621         if (pdb_getsampwsid(sam_account, sid)) {
 622                 fstrcpy(name, pdb_get_username(sam_account));
 623                 *psid_name_use = SID_NAME_USER;
 624
 625                 pdb_free_sam(&sam_account);
 626
 627                 return True;
 628         }
 629
 630         pdb_free_sam(&sam_account);
 631
 632         if (get_group_map_from_sid(*sid, &map, MAPPING_WITHOUT_PRIV)) {
 633                 if (map.gid!=-1) {
 634                         DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
 635                 } else {
 636                         DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid.  Returning name.\n", map.nt_name));
 637                 }
 638
 639                 fstrcpy(name, map.nt_name);
 640                 *psid_name_use = map.sid_name_use;
 641                 return True;
 642         }
 643
 644         if (pdb_rid_is_user(rid)) {
 645                 uid_t uid;
 646
 647                 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
 648
 649                 uid = fallback_pdb_user_rid_to_uid(rid);
 650                 slprintf(name, sizeof(fstring)-1, "unix_user.%u", (unsigned int)uid);
 651
 652                 return False;  /* Indicates that this user was 'not mapped' */
 653         } else {
 654                 gid_t gid;
 655                 struct group *gr;
 656
 657                 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
 658
 659                 gid = pdb_group_rid_to_gid(rid);
 660                 gr = getgrgid(gid);
 661
 662                 *psid_name_use = SID_NAME_ALIAS;
 663
 664                 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
 665                          gr ? "succeeded" : "failed" ));
 666
 667                 if(!gr) {
 668                         slprintf(name, sizeof(fstring)-1, "unix_group.%u", (unsigned int)gid);
 669                         return False; /* Indicates that this group was 'not mapped' */
 670                 }
 671
 672                 fstrcpy( name, gr->gr_name);
 673
 674                 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
 675                          (unsigned int)rid ));
 676                 return True;
 677         }
 678 }
 679
 680 /*******************************************************************
 681  Convert a name into a SID. Used in the lookup name rpc.
 682  ********************************************************************/
 683
 684 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
 685 {
 686         extern DOM_SID global_sid_World_Domain;
 687         DOM_SID local_sid;
 688         fstring user;
 689         SAM_ACCOUNT *sam_account = NULL;
 690         struct group *grp;
 691         GROUP_MAP map;
 692
 693         *psid_name_use = SID_NAME_UNKNOWN;
 694
 695         /*
 696          * user may be quoted a const string, and map_username and
 697          * friends can modify it. Make a modifiable copy. JRA.
 698          */
 699
 700         fstrcpy(user, c_user);
 701
 702         sid_copy(&local_sid, &global_sam_sid);
 703
 704         /*
 705          * Special case for MACHINE\Everyone. Map to the world_sid.
 706          */
 707
 708         if(strequal(user, "Everyone")) {
 709                 sid_copy( psid, &global_sid_World_Domain);
 710                 sid_append_rid(psid, 0);
 711                 *psid_name_use = SID_NAME_ALIAS;
 712                 return True;
 713         }
 714
 715         /*
 716          * Don't lookup local unix users if running in appliance mode
 717          */
 718         if (lp_hide_local_users())
 719                 return False;
 720
 721         (void)map_username(user);
 722
 723         if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
 724                 return False;
 725         }
 726
 727         if (pdb_getsampwnam(sam_account, user)) {
 728                 sid_append_rid( &local_sid, pdb_get_user_rid(sam_account));
 729                 *psid_name_use = SID_NAME_USER;
 730
 731                 sid_copy( psid, &local_sid);
 732                 pdb_free_sam(&sam_account);
 733                 return True;
 734         }
 735
 736         pdb_free_sam(&sam_account);
 737
 738         /*
 739          * Maybe it was a group ?
 740          */
 741
 742         /* check if it's a mapped group */
 743         if (get_group_map_from_ntname(user, &map, MAPPING_WITHOUT_PRIV)) {
 744                 if (map.gid!=-1) {
 745                         /* yes it's a mapped group to a valid unix group */
 746                         sid_copy(&local_sid, &map.sid);
 747                         *psid_name_use = map.sid_name_use;
 748                 }
 749                 else {
 750                         /* it's a correct name but not mapped so it points to nothing*/
 751                         return False;
 752                 }
 753         } else {
 754                 /* it's not a mapped group */
 755                 grp = getgrnam(user);
 756                 if(!grp)
 757                         return False;
 758
 759                 /*
 760                  *check if it's mapped, if it is reply it doesn't exist
 761                  *
 762                  * that's to prevent this case:
 763                  *
 764                  * unix group ug is mapped to nt group ng
 765                  * someone does a lookup on ug
 766                  * we must not reply as it doesn't "exist" anymore
 767                  * for NT. For NT only ng exists.
 768                  * JFM, 30/11/2001
 769                  */
 770
 771                 if (get_group_map_from_gid(grp->gr_gid, &map, MAPPING_WITHOUT_PRIV)){
 772                         return False;
 773                 }
 774
 775                 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
 776                 *psid_name_use = SID_NAME_ALIAS;
 777         }
 778
 779         sid_copy( psid, &local_sid);
 780
 781         return True;
 782 }
 783
 784 /****************************************************************************
 785  Convert a uid to SID - locally.
 786 ****************************************************************************/
 787
 788 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
 789 {
 790         extern DOM_SID global_sam_sid;
 791         struct passwd *pass;
 792         SAM_ACCOUNT *sam_user = NULL;
 793         fstring str; /* sid string buffer */
 794
 795         sid_copy(psid, &global_sam_sid);
 796
 797         if((pass = getpwuid_alloc(uid))) {
 798
 799                 if (NT_STATUS_IS_ERR(pdb_init_sam(&sam_user))) {
 800                         passwd_free(&pass);
 801                         return NULL;
 802                 }
 803
 804                 if (pdb_getsampwnam(sam_user, pass->pw_name)) {
 805                         sid_append_rid(psid, pdb_get_user_rid(sam_user));
 806                 } else {
 807                         sid_append_rid(psid, fallback_pdb_uid_to_user_rid(uid));
 808                 }
 809
 810                 DEBUG(10,("local_uid_to_sid: uid %u -> SID (%s) (%s).\n",
 811                           (unsigned)uid, sid_to_string( str, psid),
 812                           pass->pw_name ));
 813
 814                 passwd_free(&pass);
 815                 pdb_free_sam(&sam_user);
 816
 817         } else {
 818                 sid_append_rid(psid, fallback_pdb_uid_to_user_rid(uid));
 819
 820                 DEBUG(10,("local_uid_to_sid: uid %u -> SID (%s) (unknown user).\n",
 821                           (unsigned)uid, sid_to_string( str, psid)));
 822         }
 823
 824         return psid;
 825 }
 826
 827 /****************************************************************************
 828  Convert a SID to uid - locally.
 829 ****************************************************************************/
 830
 831 BOOL local_sid_to_uid(uid_t *puid, DOM_SID *psid, enum SID_NAME_USE *name_type)
 832 {
 833         extern DOM_SID global_sam_sid;
 834
 835         DOM_SID dom_sid;
 836         uint32 rid;
 837         fstring str;
 838         SAM_ACCOUNT *sam_user = NULL;
 839
 840         *name_type = SID_NAME_UNKNOWN;
 841
 842         sid_copy(&dom_sid, psid);
 843         sid_split_rid(&dom_sid, &rid);
 844
 845         /*
 846          * We can only convert to a uid if this is our local
 847          * Domain SID (ie. we are the controling authority).
 848          */
 849         if (!sid_equal(&global_sam_sid, &dom_sid))
 850                 return False;
 851
 852         if (NT_STATUS_IS_ERR(pdb_init_sam(&sam_user)))
 853                 return False;
 854
 855         if (pdb_getsampwsid(sam_user, psid)) {
 856                 *puid = pdb_get_uid(sam_user);
 857                 if (*puid == -1) {
 858                         pdb_free_sam(&sam_user);
 859                         return False;
 860                 }
 861                 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_to_string( str, psid),
 862                           (unsigned int)*puid, pdb_get_username(sam_user)));
 863         } else {
 864                 DEBUG(5,("local_sid_to_uid: SID %s not mapped becouse RID was not found in passdb.\n", sid_to_string( str, psid)));
 865                 pdb_free_sam(&sam_user);
 866                 return False;
 867         }
 868         pdb_free_sam(&sam_user);
 869
 870         *name_type = SID_NAME_USER;
 871
 872         return True;
 873 }
 874
 875 /****************************************************************************
 876  Convert a gid to SID - locally.
 877 ****************************************************************************/
 878
 879 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
 880 {
 881         extern DOM_SID global_sam_sid;
 882         GROUP_MAP map;
 883
 884         sid_copy(psid, &global_sam_sid);
 885
 886         if (get_group_map_from_gid(gid, &map, MAPPING_WITHOUT_PRIV)) {
 887                 sid_copy(psid, &map.sid);
 888         }
 889         else {
 890                 sid_append_rid(psid, pdb_gid_to_group_rid(gid));
 891         }
 892
 893         return psid;
 894 }
 895
 896 /****************************************************************************
 897  Convert a SID to gid - locally.
 898 ****************************************************************************/
 899
 900 BOOL local_sid_to_gid(gid_t *pgid, DOM_SID *psid, enum SID_NAME_USE *name_type)
 901 {
 902         extern DOM_SID global_sam_sid;
 903         DOM_SID dom_sid;
 904         uint32 rid;
 905         fstring str;
 906         GROUP_MAP map;
 907
 908         *name_type = SID_NAME_UNKNOWN;
 909
 910         sid_copy(&dom_sid, psid);
 911         sid_split_rid(&dom_sid, &rid);
 912
 913         /*
 914          * We can only convert to a gid if this is our local
 915          * Domain SID (ie. we are the controling authority).
 916          *
 917          * Or in the Builtin SID too. JFM, 11/30/2001
 918          */
 919
 920         if (!sid_equal(&global_sam_sid, &dom_sid))
 921                 return False;
 922
 923         if (get_group_map_from_sid(*psid, &map, MAPPING_WITHOUT_PRIV)) {
 924
 925                 /* the SID is in the mapping table but not mapped */
 926                 if (map.gid==-1)
 927                         return False;
 928
 929                 sid_peek_rid(&map.sid, &rid);
 930                 *pgid = map.gid;
 931                 *name_type = map.sid_name_use;
 932                 DEBUG(10,("local_sid_to_gid: mapped SID %s (%s) -> gid (%u).\n", sid_to_string( str, psid),
 933                           map.nt_name, (unsigned int)*pgid));
 934
 935         } else {
 936                 if (pdb_rid_is_user(rid))
 937                         return False;
 938
 939                 *pgid = pdb_group_rid_to_gid(rid);
 940                 *name_type = SID_NAME_ALIAS;
 941                 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u).\n", sid_to_string( str, psid),
 942                           (unsigned int)*pgid));
 943         }
 944
 945         return True;
 946 }
 947
 948 /**
 949  * Quick hack to do an easy ucs2 -> mulitbyte conversion
 950  * @return static buffer containing the converted string
 951  **/
 952
 953 const char *pdb_unistr2_convert(const UNISTR2 *from)
 954 {
 955         static pstring convert_buffer;
 956         *convert_buffer = 0;
 957         if (!from) {
 958                 return convert_buffer;
 959         }
 960
 961         unistr2_to_ascii(convert_buffer, from, sizeof(pstring));
 962         return convert_buffer;
 963 }
 964
 965 /*************************************************************
 966  Copies a SAM_USER_INFO_23 to a SAM_ACCOUNT
 967  **************************************************************/
 968
 969 void copy_id23_to_sam_passwd(SAM_ACCOUNT *to, SAM_USER_INFO_23 *from)
 970 {
 971
 972         if (from == NULL || to == NULL)
 973                 return;
 974
 975         pdb_set_logon_time(to,nt_time_to_unix(&from->logon_time), True);
 976         pdb_set_logoff_time(to,nt_time_to_unix(&from->logoff_time), True);
 977         pdb_set_kickoff_time(to, nt_time_to_unix(&from->kickoff_time), True);
 978         pdb_set_pass_can_change_time(to, nt_time_to_unix(&from->pass_can_change_time), True);
 979         pdb_set_pass_must_change_time(to, nt_time_to_unix(&from->pass_must_change_time), True);
 980
 981         pdb_set_pass_last_set_time(to, nt_time_to_unix(&from->pass_last_set_time));
 982
 983         if (from->uni_user_name.buffer)
 984                 pdb_set_username(to      , pdb_unistr2_convert(&from->uni_user_name   ));
 985         if (from->uni_full_name.buffer)
 986                 pdb_set_fullname(to      , pdb_unistr2_convert(&from->uni_full_name   ));
 987         if (from->uni_home_dir.buffer)
 988                 pdb_set_homedir(to       , pdb_unistr2_convert(&from->uni_home_dir    ), True);
 989         if (from->uni_dir_drive.buffer)
 990                 pdb_set_dir_drive(to     , pdb_unistr2_convert(&from->uni_dir_drive   ), True);
 991         if (from->uni_logon_script.buffer)
 992                 pdb_set_logon_script(to  , pdb_unistr2_convert(&from->uni_logon_script), True);
 993         if (from->uni_profile_path.buffer)
 994                 pdb_set_profile_path(to  , pdb_unistr2_convert(&from->uni_profile_path), True);
 995         if (from->uni_acct_desc.buffer)
 996                 pdb_set_acct_desc(to     , pdb_unistr2_convert(&from->uni_acct_desc   ));
 997         if (from->uni_workstations.buffer)
 998                 pdb_set_workstations(to  , pdb_unistr2_convert(&from->uni_workstations));
 999         if (from->uni_unknown_str.buffer)
1000                 pdb_set_unknown_str(to   , pdb_unistr2_convert(&from->uni_unknown_str ));
1001         if (from->uni_munged_dial.buffer)
1002                 pdb_set_munged_dial(to   , pdb_unistr2_convert(&from->uni_munged_dial ));
1003
1004         if (from->user_rid)
1005                 pdb_set_user_rid(to, from->user_rid);
1006         if (from->group_rid)
1007                 pdb_set_group_rid(to, from->group_rid);
1008
1009         pdb_set_acct_ctrl(to, from->acb_info);
1010         pdb_set_unknown_3(to, from->unknown_3);
1011
1012         pdb_set_logon_divs(to, from->logon_divs);
1013         pdb_set_hours_len(to, from->logon_hrs.len);
1014         pdb_set_hours(to, from->logon_hrs.hours);
1015
1016         pdb_set_unknown_5(to, from->unknown_5);
1017         pdb_set_unknown_6(to, from->unknown_6);
1018 }
1019
1020
1021 /*************************************************************
1022  Copies a sam passwd.
1023  **************************************************************/
1024
1025 void copy_id21_to_sam_passwd(SAM_ACCOUNT *to, SAM_USER_INFO_21 *from)
1026 {
1027         if (from == NULL || to == NULL)
1028                 return;
1029
1030         pdb_set_logon_time(to,nt_time_to_unix(&from->logon_time), True);
1031         pdb_set_logoff_time(to,nt_time_to_unix(&from->logoff_time), True);
1032         pdb_set_kickoff_time(to, nt_time_to_unix(&from->kickoff_time), True);
1033         pdb_set_pass_can_change_time(to, nt_time_to_unix(&from->pass_can_change_time), True);
1034         pdb_set_pass_must_change_time(to, nt_time_to_unix(&from->pass_must_change_time), True);
1035
1036         pdb_set_pass_last_set_time(to, nt_time_to_unix(&from->pass_last_set_time));
1037
1038         if (from->uni_user_name.buffer)
1039                 pdb_set_username(to      , pdb_unistr2_convert(&from->uni_user_name   ));
1040         if (from->uni_full_name.buffer)
1041                 pdb_set_fullname(to      , pdb_unistr2_convert(&from->uni_full_name   ));
1042         if (from->uni_home_dir.buffer)
1043                 pdb_set_homedir(to       , pdb_unistr2_convert(&from->uni_home_dir    ), True);
1044         if (from->uni_dir_drive.buffer)
1045                 pdb_set_dir_drive(to     , pdb_unistr2_convert(&from->uni_dir_drive   ), True);
1046         if (from->uni_logon_script.buffer)
1047                 pdb_set_logon_script(to  , pdb_unistr2_convert(&from->uni_logon_script), True);
1048         if (from->uni_profile_path.buffer)
1049                 pdb_set_profile_path(to  , pdb_unistr2_convert(&from->uni_profile_path), True);
1050         if (from->uni_acct_desc.buffer)
1051                 pdb_set_acct_desc(to     , pdb_unistr2_convert(&from->uni_acct_desc   ));
1052         if (from->uni_workstations.buffer)
1053                 pdb_set_workstations(to  , pdb_unistr2_convert(&from->uni_workstations));
1054         if (from->uni_unknown_str.buffer)
1055                 pdb_set_unknown_str(to   , pdb_unistr2_convert(&from->uni_unknown_str ));
1056         if (from->uni_munged_dial.buffer)
1057                 pdb_set_munged_dial(to   , pdb_unistr2_convert(&from->uni_munged_dial ));
1058
1059         if (from->user_rid)
1060                 pdb_set_user_rid(to, from->user_rid);
1061         if (from->group_rid)
1062                 pdb_set_group_rid(to, from->group_rid);
1063
1064         /* FIXME!!  Do we need to copy the passwords here as well?
1065            I don't know.  Need to figure this out   --jerry */
1066
1067         /* Passwords dealt with in caller --abartlet */
1068
1069         pdb_set_acct_ctrl(to, from->acb_info);
1070         pdb_set_unknown_3(to, from->unknown_3);
1071
1072         pdb_set_logon_divs(to, from->logon_divs);
1073         pdb_set_hours_len(to, from->logon_hrs.len);
1074         pdb_set_hours(to, from->logon_hrs.hours);
1075
1076         pdb_set_unknown_5(to, from->unknown_5);
1077         pdb_set_unknown_6(to, from->unknown_6);
1078 }
1079
1080
1081 /*************************************************************
1082  Change a password entry in the local smbpasswd file.
1083
1084  FIXME!!  The function needs to be abstracted into the
1085  passdb interface or something.  It is currently being called
1086  by _api_samr_create_user() in rpc_server/srv_samr.c,
1087  in SWAT and by smbpasswd/pdbedit.
1088
1089  --jerry
1090  *************************************************************/
1091
1092 BOOL local_password_change(const char *user_name, int local_flags,
1093                            const char *new_passwd,
1094                            char *err_str, size_t err_str_len,
1095                            char *msg_str, size_t msg_str_len)
1096 {
1097         struct passwd  *pwd = NULL;
1098         SAM_ACCOUNT     *sam_pass=NULL;
1099
1100         *err_str = '\0';
1101         *msg_str = '\0';
1102
1103         /* Get the smb passwd entry for this user */
1104         pdb_init_sam(&sam_pass);
1105         if(!pdb_getsampwnam(sam_pass, user_name)) {
1106                 pdb_free_sam(&sam_pass);
1107
1108                 if (local_flags & LOCAL_ADD_USER) {
1109                         pwd = getpwnam_alloc(user_name);
1110                 } else if (local_flags & LOCAL_DELETE_USER) {
1111                         /* Might not exist in /etc/passwd */
1112                 } else {
1113                         slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
1114                         return False;
1115                 }
1116
1117                 if (pwd) {
1118                         /* Local user found, so init from this */
1119                         if (!NT_STATUS_IS_OK(pdb_init_sam_pw(&sam_pass, pwd))){
1120                                 slprintf(err_str, err_str_len-1, "Failed initialise SAM_ACCOUNT for user %s.\n", user_name);
1121                                 passwd_free(&pwd);
1122                                 return False;
1123                         }
1124
1125                         passwd_free(&pwd);
1126                 } else {
1127                         if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_pass))){
1128                                 slprintf(err_str, err_str_len-1, "Failed initialise SAM_ACCOUNT for user %s.\n", user_name);
1129                                 return False;
1130                         }
1131
1132                         if (!pdb_set_username(sam_pass, user_name)) {
1133                                 slprintf(err_str, err_str_len - 1, "Failed to set username for user %s.\n", user_name);
1134                                 pdb_free_sam(&sam_pass);
1135                                 return False;
1136                         }
1137                 }
1138                 if (local_flags & LOCAL_TRUST_ACCOUNT) {
1139                         if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST)) {
1140                                 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
1141                                 pdb_free_sam(&sam_pass);
1142                                 return False;
1143                         }
1144                 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
1145                         if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST)) {
1146                                 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
1147                                 pdb_free_sam(&sam_pass);
1148                                 return False;
1149                         }
1150                 } else {
1151                         if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL)) {
1152                                 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1153                                 pdb_free_sam(&sam_pass);
1154                                 return False;
1155                         }
1156                 }
1157
1158         } else {
1159                 /* the entry already existed */
1160                 local_flags &= ~LOCAL_ADD_USER;
1161         }
1162
1163         /*
1164          * We are root - just write the new password
1165          * and the valid last change time.
1166          */
1167
1168         if (local_flags & LOCAL_DISABLE_USER) {
1169                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED)) {
1170                         slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1171                         pdb_free_sam(&sam_pass);
1172                         return False;
1173                 }
1174         } else if (local_flags & LOCAL_ENABLE_USER) {
1175                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED))) {
1176                         slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1177                         pdb_free_sam(&sam_pass);
1178                         return False;
1179                 }
1180         }
1181
1182         if (local_flags & LOCAL_SET_NO_PASSWORD) {
1183                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ)) {
1184                         slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1185                         pdb_free_sam(&sam_pass);
1186                         return False;
1187                 }
1188         } else if (local_flags & LOCAL_SET_PASSWORD) {
1189                 /*
1190                  * If we're dealing with setting a completely empty user account
1191                  * ie. One with a password of 'XXXX', but not set disabled (like
1192                  * an account created from scratch) then if the old password was
1193                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1194                  * We remove that as we're giving this user their first password
1195                  * and the decision hasn't really been made to disable them (ie.
1196                  * don't create them disabled). JRA.
1197                  */
1198                 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1199                         if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED))) {
1200                                 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1201                                 pdb_free_sam(&sam_pass);
1202                                 return False;
1203                         }
1204                 }
1205                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ))) {
1206                         slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1207                         pdb_free_sam(&sam_pass);
1208                         return False;
1209                 }
1210
1211                 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1212                         slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1213                         pdb_free_sam(&sam_pass);
1214                         return False;
1215                 }
1216         }
1217
1218         if (local_flags & LOCAL_ADD_USER) {
1219                 if (pdb_add_sam_account(sam_pass)) {
1220                         slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1221                         pdb_free_sam(&sam_pass);
1222                         return True;
1223                 } else {
1224                         slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1225                         pdb_free_sam(&sam_pass);
1226                         return False;
1227                 }
1228         } else if (local_flags & LOCAL_DELETE_USER) {
1229                 if (!pdb_delete_sam_account(sam_pass)) {
1230                         slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1231                         pdb_free_sam(&sam_pass);
1232                         return False;
1233                 }
1234                 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1235         } else {
1236                 if(!pdb_update_sam_account(sam_pass)) {
1237                         slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1238                         pdb_free_sam(&sam_pass);
1239                         return False;
1240                 }
1241                 if(local_flags & LOCAL_DISABLE_USER)
1242                         slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1243                 else if (local_flags & LOCAL_ENABLE_USER)
1244                         slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1245                 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1246                         slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1247         }
1248
1249         pdb_free_sam(&sam_pass);
1250         return True;
1251 }