source3/passdb/pdb_tdb.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * SMB parameters and setup
   4  * Copyright (C) Andrew Tridgell 1992-1998
   5  * Copyright (C) Simo Sorce 2000
   6  * Copyright (C) Gerald Carter 2000
   7  * Copyright (C) Jeremy Allison 2001
   8  * Copyright (C) Andrew Bartlett 2002
   9  *
  10  * This program is free software; you can redistribute it and/or modify it under
  11  * the terms of the GNU General Public License as published by the Free
  12  * Software Foundation; either version 2 of the License, or (at your option)
  13  * any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful, but WITHOUT
  16  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  18  * more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along with
  21  * this program; if not, write to the Free Software Foundation, Inc., 675
  22  * Mass Ave, Cambridge, MA 02139, USA.
  23  */
  24
  25 #include "includes.h"
  26
  27 #ifdef WITH_TDB_SAM
  28
  29 #define PDB_VERSION             "20010830"
  30 #define PASSDB_FILE_NAME        "passdb.tdb"
  31 #define TDB_FORMAT_STRING       "ddddddBBBBBBBBBBBBddBBwdwdBdd"
  32 #define USERPREFIX              "USER_"
  33 #define RIDPREFIX               "RID_"
  34
  35 struct tdbsam_privates {
  36         TDB_CONTEXT     *passwd_tdb;
  37         TDB_DATA        key;
  38
  39         /* retrive-once info */
  40         const char *tdbsam_location;
  41
  42         BOOL permit_non_unix_accounts;
  43
  44 /*      uint32 low_nua_rid;
  45         uint32 high_nua_rid; */
  46 };
  47
  48 /**********************************************************************
  49  Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
  50  *********************************************************************/
  51
  52 static BOOL init_sam_from_buffer (struct tdbsam_privates *tdb_state,
  53                                   SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
  54 {
  55
  56         /* times are stored as 32bit integer
  57            take care on system with 64bit wide time_t
  58            --SSS */
  59         uint32  logon_time,
  60                 logoff_time,
  61                 kickoff_time,
  62                 pass_last_set_time,
  63                 pass_can_change_time,
  64                 pass_must_change_time;
  65         char *username;
  66         char *domain;
  67         char *nt_username;
  68         char *dir_drive;
  69         char *unknown_str;
  70         char *munged_dial;
  71         char *fullname;
  72         char *homedir;
  73         char *logon_script;
  74         char *profile_path;
  75         char *acct_desc;
  76         char *workstations;
  77         uint32  username_len, domain_len, nt_username_len,
  78                 dir_drive_len, unknown_str_len, munged_dial_len,
  79                 fullname_len, homedir_len, logon_script_len,
  80                 profile_path_len, acct_desc_len, workstations_len;
  81
  82         uint32  user_rid, group_rid, unknown_3, hours_len, unknown_5, unknown_6;
  83         uint16  acct_ctrl, logon_divs;
  84         uint8   *hours;
  85         static uint8    *lm_pw_ptr, *nt_pw_ptr;
  86         uint32          len = 0;
  87         uint32          lmpwlen, ntpwlen, hourslen;
  88         BOOL ret = True;
  89         BOOL setflag;
  90         pstring sub_buffer;
  91         struct passwd *pw;
  92         uid_t uid;
  93         gid_t gid = -1; /* This is what standard sub advanced expects if no gid is known */
  94
  95         if(sampass == NULL || buf == NULL) {
  96                 DEBUG(0, ("init_sam_from_buffer: NULL parameters found!\n"));
  97                 return False;
  98         }
  99
 100         /* unpack the buffer into variables */
 101         len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING,
 102                 &logon_time,
 103                 &logoff_time,
 104                 &kickoff_time,
 105                 &pass_last_set_time,
 106                 &pass_can_change_time,
 107                 &pass_must_change_time,
 108                 &username_len, &username,
 109                 &domain_len, &domain,
 110                 &nt_username_len, &nt_username,
 111                 &fullname_len, &fullname,
 112                 &homedir_len, &homedir,
 113                 &dir_drive_len, &dir_drive,
 114                 &logon_script_len, &logon_script,
 115                 &profile_path_len, &profile_path,
 116                 &acct_desc_len, &acct_desc,
 117                 &workstations_len, &workstations,
 118                 &unknown_str_len, &unknown_str,
 119                 &munged_dial_len, &munged_dial,
 120                 &user_rid,
 121                 &group_rid,
 122                 &lmpwlen, &lm_pw_ptr,
 123                 &ntpwlen, &nt_pw_ptr,
 124                 &acct_ctrl,
 125                 &unknown_3,
 126                 &logon_divs,
 127                 &hours_len,
 128                 &hourslen, &hours,
 129                 &unknown_5,
 130                 &unknown_6);
 131
 132         if (len == -1)  {
 133                 ret = False;
 134                 goto done;
 135         }
 136
 137         /* validate the account and fill in UNIX uid and gid. Standard
 138          * getpwnam() is used instead of Get_Pwnam() as we do not need
 139          * to try case permutations
 140          */
 141         if (!username || !(pw = getpwnam_alloc(username))) {
 142                 if (!(tdb_state->permit_non_unix_accounts)) {
 143                         DEBUG(0,("tdbsam: getpwnam_alloc(%s) return NULL.  User does not exist!\n", username));
 144                         ret = False;
 145                         goto done;
 146                 }
 147         }
 148
 149         if (pw) {
 150                 uid = pw->pw_uid;
 151                 gid = pw->pw_gid;
 152
 153                 passwd_free(&pw);
 154
 155                 pdb_set_uid(sampass, uid);
 156                 pdb_set_gid(sampass, gid);
 157         }
 158
 159         pdb_set_logon_time(sampass, logon_time, True);
 160         pdb_set_logoff_time(sampass, logoff_time, True);
 161         pdb_set_kickoff_time(sampass, kickoff_time, True);
 162         pdb_set_pass_can_change_time(sampass, pass_can_change_time, True);
 163         pdb_set_pass_must_change_time(sampass, pass_must_change_time, True);
 164         pdb_set_pass_last_set_time(sampass, pass_last_set_time);
 165
 166         pdb_set_username     (sampass, username);
 167         pdb_set_domain       (sampass, domain);
 168         pdb_set_nt_username  (sampass, nt_username);
 169         pdb_set_fullname     (sampass, fullname);
 170
 171         if (homedir) setflag = True;
 172         else {
 173                 setflag = False;
 174                 pstrcpy(sub_buffer, lp_logon_home());
 175                 /* standard_sub_advanced() assumes pstring is passed!! */
 176                 standard_sub_advanced(-1, username, "", gid, username, sub_buffer);
 177                 homedir = strdup(sub_buffer);
 178                 if(!homedir) { ret = False; goto done; }
 179                 DEBUG(5,("Home directory set back to %s\n", homedir));
 180         }
 181         pdb_set_homedir(sampass, homedir, setflag);
 182
 183         if (dir_drive) setflag = True;
 184         else {
 185                 setflag = False;
 186                 pstrcpy(sub_buffer, lp_logon_drive());
 187                 standard_sub_advanced(-1, username, "", gid, username, sub_buffer);
 188                 dir_drive = strdup(sub_buffer);
 189                 if(!dir_drive) { ret = False; goto done; }
 190                 DEBUG(5,("Drive set back to %s\n", dir_drive));
 191         }
 192         pdb_set_dir_drive(sampass, dir_drive, setflag);
 193
 194         if (logon_script) setflag = True;
 195         else {
 196                 setflag = False;
 197                 pstrcpy(sub_buffer, lp_logon_script());
 198                 standard_sub_advanced(-1, username, "", gid, username, sub_buffer);
 199                 logon_script = strdup(sub_buffer);
 200                 if(!logon_script) { ret = False; goto done; }
 201                 DEBUG(5,("Logon script set back to %s\n", logon_script));
 202         }
 203         pdb_set_logon_script(sampass, logon_script, setflag);
 204
 205         if (profile_path) setflag = True;
 206         else {
 207                 setflag = False;
 208                 pstrcpy(sub_buffer, lp_logon_path());
 209                 standard_sub_advanced(-1, username, "", gid, username, sub_buffer);
 210                 profile_path = strdup(sub_buffer);
 211                 if(!profile_path) { ret = False; goto done; }
 212                 DEBUG(5,("Profile path set back to %s\n", profile_path));
 213         }
 214         pdb_set_profile_path(sampass, profile_path, setflag);
 215
 216         pdb_set_acct_desc    (sampass, acct_desc);
 217         pdb_set_workstations (sampass, workstations);
 218         pdb_set_munged_dial  (sampass, munged_dial);
 219         if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr)) {
 220                 ret = False;
 221                 goto done;
 222         }
 223         if (!pdb_set_nt_passwd(sampass, nt_pw_ptr)) {
 224                 ret = False;
 225                 goto done;
 226         }
 227
 228         pdb_set_user_rid(sampass, user_rid);
 229         pdb_set_group_rid(sampass, group_rid);
 230         pdb_set_unknown_3(sampass, unknown_3);
 231         pdb_set_hours_len(sampass, hours_len);
 232         pdb_set_unknown_5(sampass, unknown_5);
 233         pdb_set_unknown_6(sampass, unknown_6);
 234         pdb_set_acct_ctrl(sampass, acct_ctrl);
 235         pdb_set_logon_divs(sampass, logon_divs);
 236         pdb_set_hours(sampass, hours);
 237
 238 done:
 239
 240         SAFE_FREE(username);
 241         SAFE_FREE(domain);
 242         SAFE_FREE(nt_username);
 243         SAFE_FREE(fullname);
 244         SAFE_FREE(homedir);
 245         SAFE_FREE(dir_drive);
 246         SAFE_FREE(logon_script);
 247         SAFE_FREE(profile_path);
 248         SAFE_FREE(acct_desc);
 249         SAFE_FREE(workstations);
 250         SAFE_FREE(munged_dial);
 251
 252         return ret;
 253 }
 254
 255 /**********************************************************************
 256  Intialize a BYTE buffer from a SAM_ACCOUNT struct
 257  *********************************************************************/
 258 static uint32 init_buffer_from_sam (struct tdbsam_privates *tdb_state,
 259                                     uint8 **buf, const SAM_ACCOUNT *sampass)
 260 {
 261         size_t          len, buflen;
 262
 263         /* times are stored as 32bit integer
 264            take care on system with 64bit wide time_t
 265            --SSS */
 266         uint32  logon_time,
 267                 logoff_time,
 268                 kickoff_time,
 269                 pass_last_set_time,
 270                 pass_can_change_time,
 271                 pass_must_change_time;
 272
 273         uint32  user_rid, group_rid;
 274
 275         const char *username;
 276         const char *domain;
 277         const char *nt_username;
 278         const char *dir_drive;
 279         const char *unknown_str;
 280         const char *munged_dial;
 281         const char *fullname;
 282         const char *homedir;
 283         const char *logon_script;
 284         const char *profile_path;
 285         const char *acct_desc;
 286         const char *workstations;
 287         uint32  username_len, domain_len, nt_username_len,
 288                 dir_drive_len, unknown_str_len, munged_dial_len,
 289                 fullname_len, homedir_len, logon_script_len,
 290                 profile_path_len, acct_desc_len, workstations_len;
 291
 292         const uint8 *lm_pw;
 293         const uint8 *nt_pw;
 294         uint32  lm_pw_len = 16;
 295         uint32  nt_pw_len = 16;
 296
 297         /* do we have a valid SAM_ACCOUNT pointer? */
 298         if (sampass == NULL) {
 299                 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
 300                 return -1;
 301         }
 302
 303         *buf = NULL;
 304         buflen = 0;
 305
 306         logon_time = (uint32)pdb_get_logon_time(sampass);
 307         logoff_time = (uint32)pdb_get_logoff_time(sampass);
 308         kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
 309         pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
 310         pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
 311         pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
 312
 313         user_rid = pdb_get_user_rid(sampass);
 314         group_rid = pdb_get_group_rid(sampass);
 315
 316         username = pdb_get_username(sampass);
 317         if (username) username_len = strlen(username) +1;
 318         else username_len = 0;
 319
 320         domain = pdb_get_domain(sampass);
 321         if (domain) domain_len = strlen(domain) +1;
 322         else domain_len = 0;
 323
 324         nt_username = pdb_get_nt_username(sampass);
 325         if (nt_username) nt_username_len = strlen(nt_username) +1;
 326         else nt_username_len = 0;
 327
 328         fullname = pdb_get_fullname(sampass);
 329         if (fullname) fullname_len = strlen(fullname) +1;
 330         else fullname_len = 0;
 331
 332         /*
 333          * Only updates fields which have been set (not defaults from smb.conf)
 334          */
 335
 336         if (IS_SAM_SET(sampass, FLAG_SAM_DRIVE)) dir_drive = pdb_get_dirdrive(sampass);
 337         else dir_drive = NULL;
 338         if (dir_drive) dir_drive_len = strlen(dir_drive) +1;
 339         else dir_drive_len = 0;
 340
 341         if (IS_SAM_SET(sampass, FLAG_SAM_SMBHOME)) homedir = pdb_get_homedir(sampass);
 342         else homedir = NULL;
 343         if (homedir) homedir_len = strlen(homedir) +1;
 344         else homedir_len = 0;
 345
 346         if (IS_SAM_SET(sampass, FLAG_SAM_LOGONSCRIPT)) logon_script = pdb_get_logon_script(sampass);
 347         else logon_script = NULL;
 348         if (logon_script) logon_script_len = strlen(logon_script) +1;
 349         else logon_script_len = 0;
 350
 351         if (IS_SAM_SET(sampass, FLAG_SAM_PROFILE)) profile_path = pdb_get_profile_path(sampass);
 352         else profile_path = NULL;
 353         if (profile_path) profile_path_len = strlen(profile_path) +1;
 354         else profile_path_len = 0;
 355
 356         lm_pw = pdb_get_lanman_passwd(sampass);
 357         if (!lm_pw) lm_pw_len = 0;
 358
 359         nt_pw = pdb_get_nt_passwd(sampass);
 360         if (!nt_pw) nt_pw_len = 0;
 361
 362         acct_desc = pdb_get_acct_desc(sampass);
 363         if (acct_desc) acct_desc_len = strlen(acct_desc) +1;
 364         else acct_desc_len = 0;
 365
 366         workstations = pdb_get_workstations(sampass);
 367         if (workstations) workstations_len = strlen(workstations) +1;
 368         else workstations_len = 0;
 369
 370         unknown_str = NULL;
 371         unknown_str_len = 0;
 372
 373         munged_dial = pdb_get_munged_dial(sampass);
 374         if (munged_dial) munged_dial_len = strlen(munged_dial) +1;
 375         else munged_dial_len = 0;
 376
 377         /* one time to get the size needed */
 378         len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING,
 379                 logon_time,
 380                 logoff_time,
 381                 kickoff_time,
 382                 pass_last_set_time,
 383                 pass_can_change_time,
 384                 pass_must_change_time,
 385                 username_len, username,
 386                 domain_len, domain,
 387                 nt_username_len, nt_username,
 388                 fullname_len, fullname,
 389                 homedir_len, homedir,
 390                 dir_drive_len, dir_drive,
 391                 logon_script_len, logon_script,
 392                 profile_path_len, profile_path,
 393                 acct_desc_len, acct_desc,
 394                 workstations_len, workstations,
 395                 unknown_str_len, unknown_str,
 396                 munged_dial_len, munged_dial,
 397                 user_rid,
 398                 group_rid,
 399                 lm_pw_len, lm_pw,
 400                 nt_pw_len, nt_pw,
 401                 pdb_get_acct_ctrl(sampass),
 402                 pdb_get_unknown3(sampass),
 403                 pdb_get_logon_divs(sampass),
 404                 pdb_get_hours_len(sampass),
 405                 MAX_HOURS_LEN, pdb_get_hours(sampass),
 406                 pdb_get_unknown5(sampass),
 407                 pdb_get_unknown6(sampass));
 408
 409
 410         /* malloc the space needed */
 411         if ( (*buf=(uint8*)malloc(len)) == NULL) {
 412                 DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
 413                 return (-1);
 414         }
 415
 416         /* now for the real call to tdb_pack() */
 417         buflen = tdb_pack(*buf, len,  TDB_FORMAT_STRING,
 418                 logon_time,
 419                 logoff_time,
 420                 kickoff_time,
 421                 pass_last_set_time,
 422                 pass_can_change_time,
 423                 pass_must_change_time,
 424                 username_len, username,
 425                 domain_len, domain,
 426                 nt_username_len, nt_username,
 427                 fullname_len, fullname,
 428                 homedir_len, homedir,
 429                 dir_drive_len, dir_drive,
 430                 logon_script_len, logon_script,
 431                 profile_path_len, profile_path,
 432                 acct_desc_len, acct_desc,
 433                 workstations_len, workstations,
 434                 unknown_str_len, unknown_str,
 435                 munged_dial_len, munged_dial,
 436                 user_rid,
 437                 group_rid,
 438                 lm_pw_len, lm_pw,
 439                 nt_pw_len, nt_pw,
 440                 pdb_get_acct_ctrl(sampass),
 441                 pdb_get_unknown3(sampass),
 442                 pdb_get_logon_divs(sampass),
 443                 pdb_get_hours_len(sampass),
 444                 MAX_HOURS_LEN, pdb_get_hours(sampass),
 445                 pdb_get_unknown5(sampass),
 446                 pdb_get_unknown6(sampass));
 447
 448
 449         /* check to make sure we got it correct */
 450         if (buflen != len) {
 451                 DEBUG(0, ("init_buffer_from_sam: somthing odd is going on here: bufflen (%d) != len (%d) in tdb_pack operations!\n",
 452                           buflen, len));
 453                 /* error */
 454                 SAFE_FREE (*buf);
 455                 return (-1);
 456         }
 457
 458         return (buflen);
 459 }
 460
 461 /***************************************************************
 462  Open the TDB passwd database for SAM account enumeration.
 463 ****************************************************************/
 464
 465 static BOOL tdbsam_setsampwent(struct pdb_context *context, BOOL update)
 466 {
 467         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 468
 469         /* Open tdb passwd */
 470         if (!(tdb_state->passwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, update?(O_RDWR|O_CREAT):O_RDONLY, 0600)))
 471         {
 472                 DEBUG(0, ("Unable to open/create TDB passwd\n"));
 473                 return False;
 474         }
 475
 476         tdb_state->key = tdb_firstkey(tdb_state->passwd_tdb);
 477
 478         return True;
 479 }
 480
 481 static void close_tdb(struct tdbsam_privates *tdb_state)
 482 {
 483         if (tdb_state->passwd_tdb) {
 484                 tdb_close(tdb_state->passwd_tdb);
 485                 tdb_state->passwd_tdb = NULL;
 486         }
 487 }
 488
 489 /***************************************************************
 490  End enumeration of the TDB passwd list.
 491 ****************************************************************/
 492
 493 static void tdbsam_endsampwent(struct pdb_context *context)
 494 {
 495         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 496         close_tdb(tdb_state);
 497
 498         DEBUG(7, ("endtdbpwent: closed sam database.\n"));
 499 }
 500
 501 /*****************************************************************
 502  Get one SAM_ACCOUNT from the TDB (next in line)
 503 *****************************************************************/
 504
 505 static BOOL tdbsam_getsampwent(struct pdb_context *context, SAM_ACCOUNT *user)
 506 {
 507         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 508         TDB_DATA        data;
 509         char *prefix = USERPREFIX;
 510         int  prefixlen = strlen (prefix);
 511
 512
 513         if (user==NULL) {
 514                 DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n"));
 515                 return False;
 516         }
 517
 518         /* skip all non-USER entries (eg. RIDs) */
 519         while ((tdb_state->key.dsize != 0) && (strncmp(tdb_state->key.dptr, prefix, prefixlen)))
 520                 /* increment to next in line */
 521                 tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
 522
 523         /* do we have an valid interation pointer? */
 524         if(tdb_state->passwd_tdb == NULL) {
 525                 DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n"));
 526                 return False;
 527         }
 528
 529         data = tdb_fetch(tdb_state->passwd_tdb, tdb_state->key);
 530         if (!data.dptr) {
 531                 DEBUG(5,("pdb_getsampwent: database entry not found.\n"));
 532                 return False;
 533         }
 534
 535         /* unpack the buffer */
 536         if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
 537                 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
 538                 SAFE_FREE(data.dptr);
 539                 return False;
 540         }
 541         SAFE_FREE(data.dptr);
 542
 543         /* increment to next in line */
 544         tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
 545
 546         return True;
 547 }
 548
 549 /******************************************************************
 550  Lookup a name in the SAM TDB
 551 ******************************************************************/
 552
 553 static BOOL tdbsam_getsampwnam (struct pdb_context *context, SAM_ACCOUNT *user, const char *sname)
 554 {
 555         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 556         TDB_CONTEXT     *pwd_tdb;
 557         TDB_DATA        data, key;
 558         fstring         keystr;
 559         fstring         name;
 560
 561         if (user==NULL) {
 562                 DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
 563                 return False;
 564         }
 565
 566         /* Data is stored in all lower-case */
 567         unix_strlower(sname, -1, name, sizeof(name));
 568
 569         /* set search key */
 570         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 571         key.dptr = keystr;
 572         key.dsize = strlen(keystr) + 1;
 573
 574         /* open the accounts TDB */
 575         if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
 576                 DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
 577                 return False;
 578         }
 579
 580         /* get the record */
 581         data = tdb_fetch(pwd_tdb, key);
 582         if (!data.dptr) {
 583                 DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n"));
 584                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 585                 DEBUGADD(5, (" Key: %s\n", keystr));
 586                 tdb_close(pwd_tdb);
 587                 return False;
 588         }
 589
 590         /* unpack the buffer */
 591         if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
 592                 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
 593                 SAFE_FREE(data.dptr);
 594                 tdb_close(pwd_tdb);
 595                 return False;
 596         }
 597         SAFE_FREE(data.dptr);
 598
 599         /* no further use for database, close it now */
 600         tdb_close(pwd_tdb);
 601
 602         return True;
 603 }
 604
 605 /***************************************************************************
 606  Search by rid
 607  **************************************************************************/
 608
 609 static BOOL tdbsam_getsampwrid (struct pdb_context *context, SAM_ACCOUNT *user, uint32 rid)
 610 {
 611         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 612         TDB_CONTEXT             *pwd_tdb;
 613         TDB_DATA                data, key;
 614         fstring                 keystr;
 615         fstring                 name;
 616
 617         if (user==NULL) {
 618                 DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n"));
 619                 return False;
 620         }
 621
 622         /* set search key */
 623         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
 624         key.dptr = keystr;
 625         key.dsize = strlen (keystr) + 1;
 626
 627         /* open the accounts TDB */
 628         if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
 629                 DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n"));
 630                 return False;
 631         }
 632
 633         /* get the record */
 634         data = tdb_fetch (pwd_tdb, key);
 635         if (!data.dptr) {
 636                 DEBUG(5,("pdb_getsampwrid (TDB): error looking up RID %d by key %s.\n", rid, keystr));
 637                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 638                 tdb_close (pwd_tdb);
 639                 return False;
 640         }
 641
 642         fstrcpy (name, data.dptr);
 643         SAFE_FREE(data.dptr);
 644
 645         tdb_close (pwd_tdb);
 646
 647         return tdbsam_getsampwnam (context, user, name);
 648 }
 649
 650 /***************************************************************************
 651  Delete a SAM_ACCOUNT
 652 ****************************************************************************/
 653
 654 static BOOL tdbsam_delete_sam_account(struct pdb_context *context, const SAM_ACCOUNT *sam_pass)
 655 {
 656         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 657         TDB_CONTEXT     *pwd_tdb;
 658         TDB_DATA        key;
 659         fstring         keystr;
 660         uint32          rid;
 661         fstring         name;
 662
 663         unix_strlower(pdb_get_username(sam_pass), -1, name, sizeof(name));
 664
 665         /* open the TDB */
 666         if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR, 0600))) {
 667                 DEBUG(0, ("Unable to open TDB passwd!"));
 668                 return False;
 669         }
 670
 671         /* set the search key */
 672         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 673         key.dptr = keystr;
 674         key.dsize = strlen (keystr) + 1;
 675
 676         rid = pdb_get_user_rid(sam_pass);
 677
 678         /* it's outaa here!  8^) */
 679         if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
 680                 DEBUG(5, ("Error deleting entry from tdb passwd database!\n"));
 681                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 682                 tdb_close(pwd_tdb);
 683                 return False;
 684         }
 685
 686         /* delete also the RID key */
 687
 688         /* set the search key */
 689         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
 690         key.dptr = keystr;
 691         key.dsize = strlen (keystr) + 1;
 692
 693         /* it's outaa here!  8^) */
 694         if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
 695                 DEBUG(5, ("Error deleting entry from tdb rid database!\n"));
 696                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 697                 tdb_close(pwd_tdb);
 698                 return False;
 699         }
 700
 701         tdb_close(pwd_tdb);
 702
 703         return True;
 704 }
 705
 706 /***************************************************************************
 707  Update the TDB SAM
 708 ****************************************************************************/
 709
 710 static BOOL tdb_update_sam(struct pdb_context *context, const SAM_ACCOUNT* newpwd, int flag)
 711 {
 712         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 713         TDB_CONTEXT     *pwd_tdb = NULL;
 714         TDB_DATA        key, data;
 715         uint8           *buf = NULL;
 716         fstring         keystr;
 717         fstring         name;
 718         BOOL            ret = True;
 719         uint32          user_rid;
 720         int32           tdb_ret;
 721
 722         /* invalidate the existing TDB iterator if it is open */
 723         if (tdb_state->passwd_tdb) {
 724                 tdb_close(tdb_state->passwd_tdb);
 725                 tdb_state->passwd_tdb = NULL;
 726         }
 727
 728         /* open the account TDB passwd*/
 729         pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
 730         if (!pwd_tdb)
 731         {
 732                 DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
 733                 return False;
 734         }
 735
 736         /* if flag == TDB_INSERT then make up a new RID else throw an error. */
 737         if (!(user_rid = pdb_get_user_rid(newpwd))) {
 738                 if (flag & TDB_INSERT) {
 739                         user_rid = BASE_RID;
 740                         tdb_ret = tdb_change_int32_atomic(pwd_tdb, "RID_COUNTER", &user_rid, RID_MULTIPLIER);
 741                         if (tdb_ret == -1) {
 742                                 ret = False;
 743                                 goto done;
 744                         }
 745                         pdb_set_user_rid(newpwd, user_rid);
 746                 } else {
 747                         DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a RID\n",pdb_get_username(newpwd)));
 748                         ret = False;
 749                         goto done;
 750                 }
 751         }
 752
 753         if (!pdb_get_group_rid(newpwd)) {
 754                 if (flag & TDB_INSERT) {
 755                         if (!tdb_state->permit_non_unix_accounts) {
 756                                 DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
 757                                 ret = False;
 758                                 goto done;
 759                         } else {
 760                                 /* This seems like a good default choice for non-unix users */
 761                                 pdb_set_group_rid(newpwd, DOMAIN_GROUP_RID_USERS);
 762                         }
 763                 } else {
 764                         DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
 765                         ret = False;
 766                         goto done;
 767                 }
 768         }
 769
 770         /* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */
 771         if ((data.dsize=init_buffer_from_sam (tdb_state, &buf, newpwd)) == -1) {
 772                 DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n"));
 773                 ret = False;
 774                 goto done;
 775         }
 776         data.dptr = buf;
 777
 778         unix_strlower(pdb_get_username(newpwd), -1, name, sizeof(name));
 779
 780         DEBUG(5, ("Storing %saccount %s with RID %d\n", flag == TDB_INSERT ? "(new) " : "", name, user_rid));
 781
 782         /* setup the USER index key */
 783         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 784         key.dptr = keystr;
 785         key.dsize = strlen (keystr) + 1;
 786
 787         /* add the account */
 788         if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
 789                 DEBUG(0, ("Unable to modify passwd TDB!"));
 790                 DEBUGADD(0, (" Error: %s", tdb_errorstr(pwd_tdb)));
 791                 DEBUGADD(0, (" occured while storing the main record (%s)\n", keystr));
 792                 ret = False;
 793                 goto done;
 794         }
 795
 796         /* setup RID data */
 797         data.dsize = sizeof(fstring);
 798         data.dptr = name;
 799
 800         /* setup the RID index key */
 801         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, user_rid);
 802         key.dptr = keystr;
 803         key.dsize = strlen (keystr) + 1;
 804
 805         /* add the reference */
 806         if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
 807                 DEBUG(0, ("Unable to modify TDB passwd !"));
 808                 DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 809                 DEBUGADD(0, (" occured while storing the RID index (%s)\n", keystr));
 810                 ret = False;
 811                 goto done;
 812         }
 813
 814 done:
 815         /* cleanup */
 816         tdb_close (pwd_tdb);
 817         SAFE_FREE(buf);
 818
 819         return (ret);
 820 }
 821
 822 /***************************************************************************
 823  Modifies an existing SAM_ACCOUNT
 824 ****************************************************************************/
 825
 826 static BOOL tdbsam_update_sam_account (struct pdb_context *context, const SAM_ACCOUNT *newpwd)
 827 {
 828         return (tdb_update_sam(context, newpwd, TDB_MODIFY));
 829 }
 830
 831 /***************************************************************************
 832  Adds an existing SAM_ACCOUNT
 833 ****************************************************************************/
 834
 835 static BOOL tdbsam_add_sam_account (struct pdb_context *context, const SAM_ACCOUNT *newpwd)
 836 {
 837         return (tdb_update_sam(context, newpwd, TDB_INSERT));
 838 }
 839
 840 static void free_private_data(void **vp)
 841 {
 842         struct tdbsam_privates **tdb_state = (struct tdbsam_privates **)vp;
 843         close_tdb(*tdb_state);
 844         *tdb_state = NULL;
 845
 846         /* No need to free any further, as it is talloc()ed */
 847 }
 848
 849
 850 NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 851 {
 852         NTSTATUS nt_status;
 853         struct tdbsam_privates *tdb_state;
 854
 855         if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
 856                 return nt_status;
 857         }
 858
 859         (*pdb_method)->name = "tdbsam";
 860
 861         (*pdb_method)->setsampwent = tdbsam_setsampwent;
 862         (*pdb_method)->endsampwent = tdbsam_endsampwent;
 863         (*pdb_method)->getsampwent = tdbsam_getsampwent;
 864         (*pdb_method)->getsampwnam = tdbsam_getsampwnam;
 865         (*pdb_method)->getsampwrid = tdbsam_getsampwrid;
 866         (*pdb_method)->add_sam_account = tdbsam_add_sam_account;
 867         (*pdb_method)->update_sam_account = tdbsam_update_sam_account;
 868         (*pdb_method)->delete_sam_account = tdbsam_delete_sam_account;
 869
 870         tdb_state = talloc_zero(pdb_context->mem_ctx, sizeof(struct tdbsam_privates));
 871
 872         if (!tdb_state) {
 873                 DEBUG(0, ("talloc() failed for tdbsam private_data!\n"));
 874                 return NT_STATUS_NO_MEMORY;
 875         }
 876
 877         if (location) {
 878                 tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, location);
 879         } else {
 880                 pstring tdbfile;
 881                 get_private_directory(tdbfile);
 882                 pstrcat(tdbfile, "/");
 883                 pstrcat(tdbfile, PASSDB_FILE_NAME);
 884                 tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, tdbfile);
 885         }
 886
 887         (*pdb_method)->private_data = tdb_state;
 888
 889         (*pdb_method)->free_private_data = free_private_data;
 890
 891         return NT_STATUS_OK;
 892 }
 893
 894 NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 895 {
 896         NTSTATUS nt_status;
 897         struct tdbsam_privates *tdb_state;
 898         uint32 low_nua_uid, high_nua_uid;
 899
 900         if (!NT_STATUS_IS_OK(nt_status = pdb_init_tdbsam(pdb_context, pdb_method, location))) {
 901                 return nt_status;
 902         }
 903
 904         (*pdb_method)->name = "tdbsam_nua";
 905
 906         tdb_state = (*pdb_method)->private_data;
 907
 908         tdb_state->permit_non_unix_accounts = True;
 909
 910         if (!lp_non_unix_account_range(&low_nua_uid, &high_nua_uid)) {
 911                 DEBUG(0, ("cannot use tdbsam_nua without 'non unix account range' in smb.conf!\n"));
 912                 return NT_STATUS_UNSUCCESSFUL;
 913         }
 914
 915 /*      tdb_state->low_nua_rid=fallback_pdb_uid_to_user_rid(low_nua_uid);
 916
 917         tdb_state->high_nua_rid=fallback_pdb_uid_to_user_rid(high_nua_uid);
 918 */
 919         return NT_STATUS_OK;
 920 }
 921
 922
 923 #else
 924
 925 NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 926 {
 927         DEBUG(0, ("tdbsam not compiled in!\n"));
 928         return NT_STATUS_UNSUCCESSFUL;
 929 }
 930
 931 NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 932 {
 933         DEBUG(0, ("tdbsam_nua not compiled in!\n"));
 934         return NT_STATUS_UNSUCCESSFUL;
 935 }
 936
 937
 938 #endif