source/passdb/pdb_tdb.c

   1 /*
   2  * Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup
   3  * Copyright (C) Andrew Tridgell 1992-1998
   4  * Copyright (C) Simo Sorce 2000
   5  * Copyright (C) Gerald Carter 2000
   6  * Copyright (C) Jeremy Allison 2001
   7  *
   8  * This program is free software; you can redistribute it and/or modify it under
   9  * the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 2 of the License, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but WITHOUT
  14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  16  * more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along with
  19  * this program; if not, write to the Free Software Foundation, Inc., 675
  20  * Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include "includes.h"
  24
  25 #ifdef WITH_TDB_SAM
  26
  27 #define PDB_VERSION             "20010830"
  28 #define PASSDB_FILE_NAME        "/passdb.tdb"
  29 #define TDB_FORMAT_STRING       "ddddddBBBBBBBBBBBBddBBwdwdBdd"
  30 #define USERPREFIX              "USER_"
  31 #define RIDPREFIX               "RID_"
  32
  33 extern int              DEBUGLEVEL;
  34 extern pstring          samlogon_user;
  35 extern BOOL             sam_logon_in_ssb;
  36
  37 struct tdb_enum_info {
  38         TDB_CONTEXT     *passwd_tdb;
  39         TDB_DATA        key;
  40 };
  41
  42 static struct tdb_enum_info     global_tdb_ent;
  43 /*static SAM_ACCOUNT            global_sam_pass;*/
  44
  45 /**********************************************************************
  46  Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
  47  *********************************************************************/
  48
  49 static BOOL init_sam_from_buffer (SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
  50 {
  51
  52         /* times are stored as 32bit integer
  53            take care on system with 64bit wide time_t
  54            --SSS */
  55         uint32  logon_time,
  56                 logoff_time,
  57                 kickoff_time,
  58                 pass_last_set_time,
  59                 pass_can_change_time,
  60                 pass_must_change_time;
  61         char *username;
  62         char *domain;
  63         char *nt_username;
  64         char *dir_drive;
  65         char *unknown_str;
  66         char *munged_dial;
  67         char *fullname;
  68         char *homedir;
  69         char *logon_script;
  70         char *profile_path;
  71         char *acct_desc;
  72         char *workstations;
  73         uint32  username_len, domain_len, nt_username_len,
  74                 dir_drive_len, unknown_str_len, munged_dial_len,
  75                 fullname_len, homedir_len, logon_script_len,
  76                 profile_path_len, acct_desc_len, workstations_len;
  77
  78         uint32  /* uid, gid,*/ user_rid, group_rid, unknown_3, hours_len, unknown_5, unknown_6;
  79         uint16  acct_ctrl, logon_divs;
  80         uint8   *hours;
  81         static uint8    *lm_pw_ptr, *nt_pw_ptr;
  82         uint32          len = 0;
  83         uint32          lmpwlen, ntpwlen, hourslen;
  84         BOOL ret = True;
  85
  86         /* unpack the buffer into variables */
  87         len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING,
  88                 &logon_time,
  89                 &logoff_time,
  90                 &kickoff_time,
  91                 &pass_last_set_time,
  92                 &pass_can_change_time,
  93                 &pass_must_change_time,
  94                 &username_len, &username,
  95                 &domain_len, &domain,
  96                 &nt_username_len, &nt_username,
  97                 &fullname_len, &fullname,
  98                 &homedir_len, &homedir,
  99                 &dir_drive_len, &dir_drive,
 100                 &logon_script_len, &logon_script,
 101                 &profile_path_len, &profile_path,
 102                 &acct_desc_len, &acct_desc,
 103                 &workstations_len, &workstations,
 104                 &unknown_str_len, &unknown_str,
 105                 &munged_dial_len, &munged_dial,
 106                 &user_rid,
 107                 &group_rid,
 108                 &lmpwlen, &lm_pw_ptr,
 109                 &ntpwlen, &nt_pw_ptr,
 110                 &acct_ctrl,
 111                 &unknown_3,
 112                 &logon_divs,
 113                 &hours_len,
 114                 &hourslen, &hours,
 115                 &unknown_5,
 116                 &unknown_6);
 117
 118         if (len == -1)  {
 119                 ret = False;
 120                 goto done;
 121         }
 122
 123         pdb_set_logon_time(sampass, logon_time);
 124         pdb_set_logoff_time(sampass, logoff_time);
 125         pdb_set_kickoff_time(sampass, kickoff_time);
 126         pdb_set_pass_can_change_time(sampass, pass_can_change_time);
 127         pdb_set_pass_must_change_time(sampass, pass_must_change_time);
 128         pdb_set_pass_last_set_time(sampass, pass_last_set_time);
 129
 130         pdb_set_username     (sampass, username_len?username:NULL);
 131         pdb_set_domain       (sampass, domain_len?domain:NULL);
 132         pdb_set_nt_username  (sampass, nt_username_len?nt_username:NULL);
 133         pdb_set_fullname     (sampass, fullname_len?fullname:NULL);
 134         pdb_set_homedir      (sampass, homedir_len?homedir:NULL);
 135         pdb_set_dir_drive    (sampass, dir_drive_len?dir_drive:NULL);
 136         pdb_set_logon_script (sampass, logon_script_len?logon_script:NULL);
 137         pdb_set_profile_path (sampass, profile_path_len?profile_path:NULL);
 138         pdb_set_acct_desc    (sampass, acct_desc_len?acct_desc:NULL);
 139         pdb_set_workstations (sampass, workstations_len?workstations:NULL);
 140         pdb_set_munged_dial  (sampass, munged_dial_len?munged_dial:NULL);
 141         pdb_set_lanman_passwd(sampass, lmpwlen?lm_pw_ptr:NULL);
 142         pdb_set_nt_passwd    (sampass, ntpwlen?nt_pw_ptr:NULL);
 143
 144         /*pdb_set_uid(sampass, uid);
 145         pdb_set_gid(sampass, gid);*/
 146         pdb_set_user_rid(sampass, user_rid);
 147         pdb_set_group_rid(sampass, group_rid);
 148         pdb_set_unknown_3(sampass, unknown_3);
 149         pdb_set_hours_len(sampass, hours_len);
 150         pdb_set_unknown_5(sampass, unknown_5);
 151         pdb_set_unknown_6(sampass, unknown_6);
 152         pdb_set_acct_ctrl(sampass, acct_ctrl);
 153         pdb_set_logons_divs(sampass, logon_divs);
 154         pdb_set_hours(sampass, hours);
 155
 156 done:
 157
 158         SAFE_FREE(username);
 159         SAFE_FREE(domain);
 160         SAFE_FREE(nt_username);
 161         SAFE_FREE(fullname);
 162         SAFE_FREE(homedir);
 163         SAFE_FREE(dir_drive);
 164         SAFE_FREE(logon_script);
 165         SAFE_FREE(profile_path);
 166         SAFE_FREE(acct_desc);
 167         SAFE_FREE(workstations);
 168         SAFE_FREE(munged_dial);
 169
 170         return ret;
 171 }
 172
 173 /**********************************************************************
 174  Intialize a BYTE buffer from a SAM_ACCOUNT struct
 175  *********************************************************************/
 176 static uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass)
 177 {
 178         size_t          len, buflen;
 179
 180         /* times are stored as 32bit integer
 181            take care on system with 64bit wide time_t
 182            --SSS */
 183         uint32  logon_time,
 184                 logoff_time,
 185                 kickoff_time,
 186                 pass_last_set_time,
 187                 pass_can_change_time,
 188                 pass_must_change_time;
 189         const char *username;
 190         const char *domain;
 191         const char *nt_username;
 192         const char *dir_drive;
 193         const char *unknown_str;
 194         const char *munged_dial;
 195         const char *fullname;
 196         const char *homedir;
 197         const char *logon_script;
 198         const char *profile_path;
 199         const char *acct_desc;
 200         const char *workstations;
 201         uint32  username_len, domain_len, nt_username_len,
 202                 dir_drive_len, unknown_str_len, munged_dial_len,
 203                 fullname_len, homedir_len, logon_script_len,
 204                 profile_path_len, acct_desc_len, workstations_len;
 205
 206         const uint8 *lm_pw;
 207         const uint8 *nt_pw;
 208         uint32  lm_pw_len = 16;
 209         uint32  nt_pw_len = 16;
 210
 211         /* do we have a valid SAM_ACCOUNT pointer? */
 212         if (sampass == NULL)
 213                 return -1;
 214
 215         *buf = NULL;
 216         buflen = 0;
 217
 218         logon_time = (uint32)pdb_get_logon_time(sampass);
 219         logoff_time = (uint32)pdb_get_logoff_time(sampass);
 220         kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
 221         pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
 222         pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
 223         pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
 224
 225
 226         username = pdb_get_username(sampass);
 227         if (username)
 228                 username_len = strlen(username) +1;
 229         else
 230                 username_len = 0;
 231         domain = pdb_get_domain(sampass);
 232         if (domain)
 233                 domain_len = strlen(domain) +1;
 234         else
 235                 domain_len = 0;
 236         nt_username = pdb_get_nt_username(sampass);
 237         if (nt_username)
 238                 nt_username_len = strlen(nt_username) +1;
 239         else
 240                 nt_username_len = 0;
 241         dir_drive = pdb_get_dirdrive(sampass);
 242         if (dir_drive)
 243                 dir_drive_len = strlen(dir_drive) +1;
 244         else
 245                 dir_drive_len = 0;
 246         unknown_str = NULL;
 247         unknown_str_len = 0;
 248         munged_dial = pdb_get_munged_dial(sampass);
 249         if (munged_dial)
 250                 munged_dial_len = strlen(munged_dial) +1;
 251         else
 252                 munged_dial_len = 0;
 253
 254         fullname = pdb_get_fullname(sampass);
 255         if (fullname)
 256                 fullname_len = strlen(fullname) +1;
 257         else
 258                 fullname_len = 0;
 259         homedir = pdb_get_homedir(sampass);
 260         if (homedir)
 261                 homedir_len = strlen(homedir) +1;
 262         else
 263                 homedir_len = 0;
 264         logon_script = pdb_get_logon_script(sampass);
 265         if (logon_script)
 266                 logon_script_len = strlen(logon_script) +1;
 267         else
 268                 logon_script_len = 0;
 269         profile_path = pdb_get_profile_path(sampass);
 270         if (profile_path)
 271                 profile_path_len = strlen(profile_path) +1;
 272         else
 273                 profile_path_len = 0;
 274         acct_desc = pdb_get_acct_desc(sampass);
 275         if (acct_desc)
 276                 acct_desc_len = strlen(acct_desc) +1;
 277         else
 278                 acct_desc_len = 0;
 279         workstations = pdb_get_workstations(sampass);
 280         if (workstations)
 281                 workstations_len = strlen(workstations) +1;
 282         else
 283                 workstations_len = 0;
 284
 285         lm_pw = pdb_get_lanman_passwd(sampass);
 286         if (!lm_pw)
 287                 lm_pw_len = 0;
 288
 289         nt_pw = pdb_get_nt_passwd(sampass);
 290         if (!nt_pw)
 291                 nt_pw_len = 0;
 292
 293         /* one time to get the size needed */
 294         len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING,
 295                 logon_time,
 296                 logoff_time,
 297                 kickoff_time,
 298                 pass_last_set_time,
 299                 pass_can_change_time,
 300                 pass_must_change_time,
 301                 username_len, username,
 302                 domain_len, domain,
 303                 nt_username_len, nt_username,
 304                 fullname_len, fullname,
 305                 homedir_len, homedir,
 306                 dir_drive_len, dir_drive,
 307                 logon_script_len, logon_script,
 308                 profile_path_len, profile_path,
 309                 acct_desc_len, acct_desc,
 310                 workstations_len, workstations,
 311                 unknown_str_len, unknown_str,
 312                 munged_dial_len, munged_dial,
 313                 pdb_get_user_rid(sampass),
 314                 pdb_get_group_rid(sampass),
 315                 lm_pw_len, lm_pw,
 316                 nt_pw_len, nt_pw,
 317                 pdb_get_acct_ctrl(sampass),
 318                 pdb_get_unknown3(sampass),
 319                 pdb_get_logon_divs(sampass),
 320                 pdb_get_hours_len(sampass),
 321                 MAX_HOURS_LEN, pdb_get_hours(sampass),
 322                 pdb_get_unknown5(sampass),
 323                 pdb_get_unknown6(sampass));
 324
 325
 326         /* malloc the space needed */
 327         if ( (*buf=(uint8*)malloc(len)) == NULL) {
 328                 DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
 329                 return (-1);
 330         }
 331
 332         /* now for the real call to tdb_pack() */
 333         buflen = tdb_pack(*buf, len,  TDB_FORMAT_STRING,
 334                 logon_time,
 335                 logoff_time,
 336                 kickoff_time,
 337                 pass_last_set_time,
 338                 pass_can_change_time,
 339                 pass_must_change_time,
 340                 username_len, username,
 341                 domain_len, domain,
 342                 nt_username_len, nt_username,
 343                 fullname_len, fullname,
 344                 homedir_len, homedir,
 345                 dir_drive_len, dir_drive,
 346                 logon_script_len, logon_script,
 347                 profile_path_len, profile_path,
 348                 acct_desc_len, acct_desc,
 349                 workstations_len, workstations,
 350                 unknown_str_len, unknown_str,
 351                 munged_dial_len, munged_dial,
 352                 pdb_get_user_rid(sampass),
 353                 pdb_get_group_rid(sampass),
 354                 lm_pw_len, lm_pw,
 355                 nt_pw_len, nt_pw,
 356                 pdb_get_acct_ctrl(sampass),
 357                 pdb_get_unknown3(sampass),
 358                 pdb_get_logon_divs(sampass),
 359                 pdb_get_hours_len(sampass),
 360                 MAX_HOURS_LEN, pdb_get_hours(sampass),
 361                 pdb_get_unknown5(sampass),
 362                 pdb_get_unknown6(sampass));
 363
 364
 365         /* check to make sure we got it correct */
 366         if (buflen != len) {
 367                 /* error */
 368                 SAFE_FREE (*buf);
 369                 return (-1);
 370         }
 371
 372         return (buflen);
 373 }
 374
 375 /***************************************************************
 376  Open the TDB passwd database for SAM account enumeration.
 377 ****************************************************************/
 378
 379 BOOL pdb_setsampwent(BOOL update)
 380 {
 381         pstring         tdbfile;
 382
 383         get_private_directory(tdbfile);
 384         pstrcat (tdbfile, PASSDB_FILE_NAME);
 385
 386         /* Open tdb passwd */
 387         if (!(global_tdb_ent.passwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, update?(O_RDWR|O_CREAT):O_RDONLY, 0600)))
 388         {
 389                 DEBUG(0, ("Unable to open/create TDB passwd\n"));
 390                 return False;
 391         }
 392
 393         global_tdb_ent.key = tdb_firstkey(global_tdb_ent.passwd_tdb);
 394
 395         return True;
 396 }
 397
 398 /***************************************************************
 399  End enumeration of the TDB passwd list.
 400 ****************************************************************/
 401
 402 void pdb_endsampwent(void)
 403 {
 404         if (global_tdb_ent.passwd_tdb) {
 405                 tdb_close(global_tdb_ent.passwd_tdb);
 406                 global_tdb_ent.passwd_tdb = NULL;
 407         }
 408
 409         DEBUG(7, ("endtdbpwent: closed password file.\n"));
 410 }
 411
 412 /*****************************************************************
 413  Get one SAM_ACCOUNT from the TDB (next in line)
 414 *****************************************************************/
 415
 416 BOOL pdb_getsampwent(SAM_ACCOUNT *user)
 417 {
 418         TDB_DATA        data;
 419         struct passwd   *pw;
 420         uid_t           uid;
 421         gid_t           gid;
 422         char *prefix = USERPREFIX;
 423         int  prefixlen = strlen (prefix);
 424
 425         if (user==NULL) {
 426                 DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n"));
 427                 return False;
 428         }
 429
 430         /* skip all RID entries */
 431         while ((global_tdb_ent.key.dsize != 0) && (strncmp (global_tdb_ent.key.dptr, prefix, prefixlen)))
 432                 /* increment to next in line */
 433                 global_tdb_ent.key = tdb_nextkey (global_tdb_ent.passwd_tdb, global_tdb_ent.key);
 434
 435         /* do we have an valid interation pointer? */
 436         if(global_tdb_ent.passwd_tdb == NULL) {
 437                 DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n"));
 438                 return False;
 439         }
 440
 441         data = tdb_fetch (global_tdb_ent.passwd_tdb, global_tdb_ent.key);
 442         if (!data.dptr) {
 443                 DEBUG(5,("pdb_getsampwent: database entry not found.\n"));
 444                 return False;
 445         }
 446
 447         /* unpack the buffer */
 448         if (!init_sam_from_buffer (user, data.dptr, data.dsize)) {
 449                 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
 450                 SAFE_FREE(data.dptr);
 451                 return False;
 452         }
 453         SAFE_FREE(data.dptr);
 454
 455         /* validate the account and fill in UNIX uid and gid.  sys_getpwnam()
 456            is used instaed of Get_Pwnam() as we do not need to try case
 457            permutations */
 458         if ((pw=sys_getpwnam(pdb_get_username(user))) == NULL) {
 459                 DEBUG(0,("pdb_getsampwent: getpwnam(%s) return NULL.  User does not exist!\n",
 460                           pdb_get_username(user)));
 461                 return False;
 462         }
 463
 464         uid = pw->pw_uid;
 465         gid = pw->pw_gid;
 466         pdb_set_uid (user, &uid);
 467         pdb_set_gid (user, &gid);
 468
 469         /* increment to next in line */
 470         global_tdb_ent.key = tdb_nextkey (global_tdb_ent.passwd_tdb, global_tdb_ent.key);
 471
 472         return True;
 473 }
 474
 475 /******************************************************************
 476  Lookup a name in the SAM TDB
 477 ******************************************************************/
 478
 479 BOOL pdb_getsampwnam (SAM_ACCOUNT *user, const char *sname)
 480 {
 481         TDB_CONTEXT     *pwd_tdb;
 482         TDB_DATA        data, key;
 483         fstring         keystr;
 484         struct passwd   *pw;
 485         pstring         tdbfile;
 486         fstring         name;
 487         uid_t           uid;
 488         gid_t           gid;
 489
 490
 491         if (user==NULL) {
 492                 DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
 493                 return False;
 494         }
 495
 496         /* Data is stored in all lower-case */
 497         unix_strlower(sname, -1, name, sizeof(name));
 498
 499         get_private_directory(tdbfile);
 500         pstrcat (tdbfile, PASSDB_FILE_NAME);
 501
 502         /* set search key */
 503         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 504         key.dptr = keystr;
 505         key.dsize = strlen (keystr) + 1;
 506
 507         /* open the accounts TDB */
 508         if (!(pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
 509                 DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd!\n"));
 510                 return False;
 511         }
 512
 513         /* get the record */
 514         data = tdb_fetch (pwd_tdb, key);
 515         if (!data.dptr) {
 516                 DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n"));
 517                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 518                 tdb_close (pwd_tdb);
 519                 return False;
 520         }
 521
 522         /* unpack the buffer */
 523         if (!init_sam_from_buffer (user, data.dptr, data.dsize)) {
 524                 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
 525                 SAFE_FREE(data.dptr);
 526                 return False;
 527         }
 528         SAFE_FREE(data.dptr);
 529
 530         /* validate the account and fill in UNIX uid and gid.  sys_getpwnam()
 531            is used instaed of Get_Pwnam() as we do not need to try case
 532            permutations */
 533         if ((pw=sys_getpwnam(pdb_get_username(user)))) {
 534                 uid = pw->pw_uid;
 535                 gid = pw->pw_gid;
 536                 pdb_set_uid (user, &uid);
 537                 pdb_set_gid (user, &gid);
 538         }
 539
 540         /* cleanup */
 541         tdb_close (pwd_tdb);
 542
 543         return True;
 544 }
 545
 546 /***************************************************************************
 547  Search by uid
 548  **************************************************************************/
 549
 550 BOOL pdb_getsampwuid (SAM_ACCOUNT* user, uid_t uid)
 551 {
 552         struct passwd   *pw;
 553         fstring         name;
 554
 555         if (user==NULL) {
 556                 DEBUG(0,("pdb_getsampwuid: SAM_ACCOUNT is NULL.\n"));
 557                 return False;
 558         }
 559
 560         pw = sys_getpwuid(uid);
 561         if (pw == NULL) {
 562                 DEBUG(0,("pdb_getsampwuid: getpwuid(%d) return NULL. User does not exist!\n", uid));
 563                 return False;
 564         }
 565         fstrcpy (name, pw->pw_name);
 566
 567         return pdb_getsampwnam (user, name);
 568
 569 }
 570
 571 /***************************************************************************
 572  Search by rid
 573  **************************************************************************/
 574
 575 BOOL pdb_getsampwrid (SAM_ACCOUNT *user, uint32 rid)
 576 {
 577         TDB_CONTEXT             *pwd_tdb;
 578         TDB_DATA                data, key;
 579         fstring                 keystr;
 580         pstring                 tdbfile;
 581         fstring                 name;
 582
 583         if (user==NULL) {
 584                 DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n"));
 585                 return False;
 586         }
 587
 588         get_private_directory(tdbfile);
 589         pstrcat (tdbfile, PASSDB_FILE_NAME);
 590
 591         /* set search key */
 592         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
 593         key.dptr = keystr;
 594         key.dsize = strlen (keystr) + 1;
 595
 596         /* open the accounts TDB */
 597         if (!(pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
 598                 DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n"));
 599                 return False;
 600         }
 601
 602         /* get the record */
 603         data = tdb_fetch (pwd_tdb, key);
 604         if (!data.dptr) {
 605                 DEBUG(5,("pdb_getsampwrid (TDB): error fetching database.\n"));
 606                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 607                 tdb_close (pwd_tdb);
 608                 return False;
 609         }
 610
 611         fstrcpy (name, data.dptr);
 612         SAFE_FREE(data.dptr);
 613
 614         tdb_close (pwd_tdb);
 615
 616         return pdb_getsampwnam (user, name);
 617 }
 618
 619 /***************************************************************************
 620  Delete a SAM_ACCOUNT
 621 ****************************************************************************/
 622
 623 BOOL pdb_delete_sam_account(const char *sname)
 624 {
 625         SAM_ACCOUNT     *sam_pass = NULL;
 626         TDB_CONTEXT     *pwd_tdb;
 627         TDB_DATA        key, data;
 628         fstring         keystr;
 629         pstring         tdbfile;
 630         uint32          rid;
 631         fstring         name;
 632
 633         unix_strlower(sname, -1, name, sizeof(name));
 634
 635         get_private_directory(tdbfile);
 636         pstrcat (tdbfile, PASSDB_FILE_NAME);
 637
 638         /* open the TDB */
 639         if (!(pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR, 0600))) {
 640                 DEBUG(0, ("Unable to open TDB passwd!"));
 641                 return False;
 642         }
 643
 644         /* set the search key */
 645         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 646         key.dptr = keystr;
 647         key.dsize = strlen (keystr) + 1;
 648
 649         /* get the record */
 650         data = tdb_fetch (pwd_tdb, key);
 651         if (!data.dptr) {
 652                 DEBUG(5,("pdb_delete_sam_account (TDB): error fetching database.\n"));
 653                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 654                 tdb_close (pwd_tdb);
 655                 return False;
 656         }
 657
 658         /* unpack the buffer */
 659         if (!pdb_init_sam (&sam_pass)) {
 660                 tdb_close (pwd_tdb);
 661                 return False;
 662         }
 663
 664         if (!init_sam_from_buffer (sam_pass, data.dptr, data.dsize)) {
 665                 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
 666                 tdb_close (pwd_tdb);
 667                 SAFE_FREE(data.dptr);
 668                 return False;
 669         }
 670         SAFE_FREE(data.dptr);
 671
 672         rid = pdb_get_user_rid(sam_pass);
 673
 674         pdb_free_sam (&sam_pass);
 675
 676         /* it's outaa here!  8^) */
 677         if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
 678                 DEBUG(5, ("Error deleting entry from tdb passwd database!\n"));
 679                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 680                 tdb_close(pwd_tdb);
 681                 return False;
 682         }
 683
 684         /* delete also the RID key */
 685
 686         /* set the search key */
 687         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
 688         key.dptr = keystr;
 689         key.dsize = strlen (keystr) + 1;
 690
 691         /* it's outaa here!  8^) */
 692         if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
 693                 DEBUG(5, ("Error deleting entry from tdb rid database!\n"));
 694                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 695                 tdb_close(pwd_tdb);
 696                 return False;
 697         }
 698
 699         tdb_close(pwd_tdb);
 700
 701         return True;
 702 }
 703
 704 /***************************************************************************
 705  Update the TDB SAM
 706 ****************************************************************************/
 707
 708 static BOOL tdb_update_sam(const SAM_ACCOUNT* newpwd, BOOL override, int flag)
 709 {
 710         TDB_CONTEXT     *pwd_tdb = NULL;
 711         TDB_DATA        key, data;
 712         uint8           *buf = NULL;
 713         fstring         keystr;
 714         pstring         tdbfile;
 715         fstring         name;
 716         BOOL            ret = True;
 717
 718         get_private_directory(tdbfile);
 719         pstrcat (tdbfile, PASSDB_FILE_NAME);
 720
 721         /* if we don't have a RID, then FAIL */
 722         if (!pdb_get_user_rid(newpwd))
 723                 DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a RID\n",pdb_get_username(newpwd)));
 724         if (!pdb_get_group_rid(newpwd))
 725                 DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
 726
 727         /* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */
 728         if ((data.dsize=init_buffer_from_sam (&buf, newpwd)) == -1) {
 729                 DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n"));
 730                 ret = False;
 731                 goto done;
 732         }
 733         data.dptr = buf;
 734
 735         unix_strlower(pdb_get_username(newpwd), -1, name, sizeof(name));
 736
 737         /* setup the USER index key */
 738         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 739         key.dptr = keystr;
 740         key.dsize = strlen (keystr) + 1;
 741
 742         /* invalidate the existing TDB iterator if it is open */
 743         if (global_tdb_ent.passwd_tdb) {
 744                 tdb_close(global_tdb_ent.passwd_tdb);
 745                 global_tdb_ent.passwd_tdb = NULL;
 746         }
 747
 748         /* open the account TDB passwd*/
 749         pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
 750         if (!pwd_tdb)
 751         {
 752                 DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd!\n"));
 753                 return False;
 754         }
 755
 756         /* add the account */
 757         if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
 758                 DEBUG(0, ("Unable to modify passwd TDB!"));
 759                 DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 760                 ret = False;
 761                 goto done;
 762         }
 763
 764         /* setup RID data */
 765         data.dsize = sizeof(fstring);
 766         data.dptr = name;
 767
 768         /* setup the RID index key */
 769         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, pdb_get_user_rid(newpwd));
 770         key.dptr = keystr;
 771         key.dsize = strlen (keystr) + 1;
 772
 773         /* add the reference */
 774         if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
 775                 DEBUG(0, ("Unable to modify TDB passwd !"));
 776                 DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 777                 ret = False;
 778                 goto done;
 779         }
 780
 781 done:
 782         /* cleanup */
 783         tdb_close (pwd_tdb);
 784         SAFE_FREE(buf);
 785
 786         return (ret);
 787 }
 788
 789 /***************************************************************************
 790  Modifies an existing SAM_ACCOUNT
 791 ****************************************************************************/
 792
 793 BOOL pdb_update_sam_account (const SAM_ACCOUNT *newpwd, BOOL override)
 794 {
 795         return (tdb_update_sam(newpwd, override, TDB_MODIFY));
 796 }
 797
 798 /***************************************************************************
 799  Adds an existing SAM_ACCOUNT
 800 ****************************************************************************/
 801
 802 BOOL pdb_add_sam_account (const SAM_ACCOUNT *newpwd)
 803 {
 804         return (tdb_update_sam(newpwd, True, TDB_INSERT));
 805 }
 806
 807 #else
 808         /* Do *NOT* make this function static. It breaks the compile on gcc. JRA */
 809         void samtdb_dummy_function(void) { } /* stop some compilers complaining */
 810 #endif /* WITH_TDB_SAM */