source3/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  * Copyright (C) Andrew Bartlett 2002
   8  *
   9  * This program is free software; you can redistribute it and/or modify it under
  10  * the terms of the GNU General Public License as published by the Free
  11  * Software Foundation; either version 2 of the License, or (at your option)
  12  * any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but WITHOUT
  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  17  * more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along with
  20  * this program; if not, write to the Free Software Foundation, Inc., 675
  21  * Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 #include "includes.h"
  25
  26 #ifdef WITH_TDB_SAM
  27
  28 #define PDB_VERSION             "20010830"
  29 #define PASSDB_FILE_NAME        "/passdb.tdb"
  30 #define TDB_FORMAT_STRING       "ddddddBBBBBBBBBBBBddBBwdwdBdd"
  31 #define USERPREFIX              "USER_"
  32 #define RIDPREFIX               "RID_"
  33
  34 struct tdbsam_privates {
  35         TDB_CONTEXT     *passwd_tdb;
  36         TDB_DATA        key;
  37
  38         /* retrive-once info */
  39         const char *tdbsam_location;
  40
  41         BOOL permit_non_unix_accounts;
  42
  43         uint32 low_nua_rid;
  44         uint32 high_nua_rid;
  45 };
  46
  47 /**********************************************************************
  48  Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
  49  *********************************************************************/
  50
  51 static BOOL init_sam_from_buffer (struct tdbsam_privates *tdb_state,
  52                                   SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
  53 {
  54
  55         /* times are stored as 32bit integer
  56            take care on system with 64bit wide time_t
  57            --SSS */
  58         uint32  logon_time,
  59                 logoff_time,
  60                 kickoff_time,
  61                 pass_last_set_time,
  62                 pass_can_change_time,
  63                 pass_must_change_time;
  64         char *username;
  65         char *domain;
  66         char *nt_username;
  67         char *dir_drive;
  68         char *unknown_str;
  69         char *munged_dial;
  70         char *fullname;
  71         char *homedir;
  72         char *logon_script;
  73         char *profile_path;
  74         char *acct_desc;
  75         char *workstations;
  76         uint32  username_len, domain_len, nt_username_len,
  77                 dir_drive_len, unknown_str_len, munged_dial_len,
  78                 fullname_len, homedir_len, logon_script_len,
  79                 profile_path_len, acct_desc_len, workstations_len;
  80
  81         uint32  /* uid, gid,*/ user_rid, group_rid, unknown_3, hours_len, unknown_5, unknown_6;
  82         uint16  acct_ctrl, logon_divs;
  83         uint8   *hours;
  84         static uint8    *lm_pw_ptr, *nt_pw_ptr;
  85         uint32          len = 0;
  86         uint32          lmpwlen, ntpwlen, hourslen;
  87         BOOL ret = True;
  88
  89         if(sampass == NULL || buf == NULL) {
  90                 DEBUG(0, ("init_sam_from_buffer: NULL parameters found!\n"));
  91                 return False;
  92         }
  93
  94         /* unpack the buffer into variables */
  95         len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING,
  96                 &logon_time,
  97                 &logoff_time,
  98                 &kickoff_time,
  99                 &pass_last_set_time,
 100                 &pass_can_change_time,
 101                 &pass_must_change_time,
 102                 &username_len, &username,
 103                 &domain_len, &domain,
 104                 &nt_username_len, &nt_username,
 105                 &fullname_len, &fullname,
 106                 &homedir_len, &homedir,
 107                 &dir_drive_len, &dir_drive,
 108                 &logon_script_len, &logon_script,
 109                 &profile_path_len, &profile_path,
 110                 &acct_desc_len, &acct_desc,
 111                 &workstations_len, &workstations,
 112                 &unknown_str_len, &unknown_str,
 113                 &munged_dial_len, &munged_dial,
 114                 &user_rid,
 115                 &group_rid,
 116                 &lmpwlen, &lm_pw_ptr,
 117                 &ntpwlen, &nt_pw_ptr,
 118                 &acct_ctrl,
 119                 &unknown_3,
 120                 &logon_divs,
 121                 &hours_len,
 122                 &hourslen, &hours,
 123                 &unknown_5,
 124                 &unknown_6);
 125
 126         if (len == -1)  {
 127                 ret = False;
 128                 goto done;
 129         }
 130
 131         pdb_set_logon_time(sampass, logon_time);
 132         pdb_set_logoff_time(sampass, logoff_time);
 133         pdb_set_kickoff_time(sampass, kickoff_time);
 134         pdb_set_pass_can_change_time(sampass, pass_can_change_time);
 135         pdb_set_pass_must_change_time(sampass, pass_must_change_time);
 136         pdb_set_pass_last_set_time(sampass, pass_last_set_time);
 137
 138         pdb_set_username     (sampass, username_len?username:NULL);
 139         pdb_set_domain       (sampass, domain_len?domain:NULL);
 140         pdb_set_nt_username  (sampass, nt_username_len?nt_username:NULL);
 141         pdb_set_fullname     (sampass, fullname_len?fullname:NULL);
 142         pdb_set_homedir      (sampass, homedir_len?homedir:NULL, True);
 143         pdb_set_dir_drive    (sampass, dir_drive_len?dir_drive:NULL, True);
 144         pdb_set_logon_script (sampass, logon_script_len?logon_script:NULL, True);
 145         pdb_set_profile_path (sampass, profile_path_len?profile_path:NULL, True);
 146         pdb_set_acct_desc    (sampass, acct_desc_len?acct_desc:NULL);
 147         pdb_set_workstations (sampass, workstations_len?workstations:NULL);
 148         pdb_set_munged_dial  (sampass, munged_dial_len?munged_dial:NULL);
 149         if (!pdb_set_lanman_passwd(sampass, lmpwlen?lm_pw_ptr:NULL)) {
 150                 ret = False;
 151                 goto done;
 152         }
 153         if (!pdb_set_nt_passwd(sampass, ntpwlen?nt_pw_ptr:NULL)) {
 154                 ret = False;
 155                 goto done;
 156         }
 157
 158         pdb_set_user_rid(sampass, user_rid);
 159         pdb_set_group_rid(sampass, group_rid);
 160         pdb_set_unknown_3(sampass, unknown_3);
 161         pdb_set_hours_len(sampass, hours_len);
 162         pdb_set_unknown_5(sampass, unknown_5);
 163         pdb_set_unknown_6(sampass, unknown_6);
 164         pdb_set_acct_ctrl(sampass, acct_ctrl);
 165         pdb_set_logon_divs(sampass, logon_divs);
 166         pdb_set_hours(sampass, hours);
 167
 168         if ((tdb_state->permit_non_unix_accounts)
 169             && (pdb_get_user_rid(sampass) >= tdb_state->low_nua_rid)
 170             && (pdb_get_user_rid(sampass) <= tdb_state->high_nua_rid)) {
 171
 172         } else {
 173                 struct passwd *pw;
 174                 /* validate the account and fill in UNIX uid and gid.  sys_getpwnam()
 175                    is used instaed of Get_Pwnam() as we do not need to try case
 176                    permutations */
 177
 178                 if ((pw=getpwnam_alloc(pdb_get_username(sampass))) == NULL) {
 179                         DEBUG(0,("init_sam_from_buffer: (tdbsam) getpwnam(%s) return NULL.  User does not exist!\n",
 180                                  pdb_get_username(sampass)));
 181                         return False;
 182                 }
 183
 184                 pdb_set_uid(sampass, pw->pw_uid);
 185                 pdb_set_gid(sampass, pw->pw_gid);
 186
 187                 passwd_free(&pw);
 188         }
 189
 190 done:
 191
 192         SAFE_FREE(username);
 193         SAFE_FREE(domain);
 194         SAFE_FREE(nt_username);
 195         SAFE_FREE(fullname);
 196         SAFE_FREE(homedir);
 197         SAFE_FREE(dir_drive);
 198         SAFE_FREE(logon_script);
 199         SAFE_FREE(profile_path);
 200         SAFE_FREE(acct_desc);
 201         SAFE_FREE(workstations);
 202         SAFE_FREE(munged_dial);
 203
 204         return ret;
 205 }
 206
 207 /**********************************************************************
 208  Intialize a BYTE buffer from a SAM_ACCOUNT struct
 209  *********************************************************************/
 210 static uint32 init_buffer_from_sam (struct tdbsam_privates *tdb_state, uint8 **buf,
 211                                     const SAM_ACCOUNT *sampass, uint32 user_rid, uint32 group_rid)
 212 {
 213         size_t          len, buflen;
 214
 215         /* times are stored as 32bit integer
 216            take care on system with 64bit wide time_t
 217            --SSS */
 218         uint32  logon_time,
 219                 logoff_time,
 220                 kickoff_time,
 221                 pass_last_set_time,
 222                 pass_can_change_time,
 223                 pass_must_change_time;
 224         const char *username;
 225         const char *domain;
 226         const char *nt_username;
 227         const char *dir_drive;
 228         const char *unknown_str;
 229         const char *munged_dial;
 230         const char *fullname;
 231         const char *homedir;
 232         const char *logon_script;
 233         const char *profile_path;
 234         const char *acct_desc;
 235         const char *workstations;
 236         uint32  username_len, domain_len, nt_username_len,
 237                 dir_drive_len, unknown_str_len, munged_dial_len,
 238                 fullname_len, homedir_len, logon_script_len,
 239                 profile_path_len, acct_desc_len, workstations_len;
 240
 241         const uint8 *lm_pw;
 242         const uint8 *nt_pw;
 243         uint32  lm_pw_len = 16;
 244         uint32  nt_pw_len = 16;
 245
 246         /* do we have a valid SAM_ACCOUNT pointer? */
 247         if (sampass == NULL) {
 248                 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
 249                 return -1;
 250         }
 251
 252         *buf = NULL;
 253         buflen = 0;
 254
 255         logon_time = (uint32)pdb_get_logon_time(sampass);
 256         logoff_time = (uint32)pdb_get_logoff_time(sampass);
 257         kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
 258         pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
 259         pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
 260         pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
 261
 262
 263         username = pdb_get_username(sampass);
 264         if (username)
 265                 username_len = strlen(username) +1;
 266         else
 267                 username_len = 0;
 268         domain = pdb_get_domain(sampass);
 269         if (domain)
 270                 domain_len = strlen(domain) +1;
 271         else
 272                 domain_len = 0;
 273         nt_username = pdb_get_nt_username(sampass);
 274         if (nt_username)
 275                 nt_username_len = strlen(nt_username) +1;
 276         else
 277                 nt_username_len = 0;
 278         dir_drive = pdb_get_dirdrive(sampass);
 279         if (dir_drive)
 280                 dir_drive_len = strlen(dir_drive) +1;
 281         else
 282                 dir_drive_len = 0;
 283         unknown_str = NULL;
 284         unknown_str_len = 0;
 285         munged_dial = pdb_get_munged_dial(sampass);
 286         if (munged_dial)
 287                 munged_dial_len = strlen(munged_dial) +1;
 288         else
 289                 munged_dial_len = 0;
 290
 291         fullname = pdb_get_fullname(sampass);
 292         if (fullname)
 293                 fullname_len = strlen(fullname) +1;
 294         else
 295                 fullname_len = 0;
 296         homedir = pdb_get_homedir(sampass);
 297         if (homedir)
 298                 homedir_len = strlen(homedir) +1;
 299         else
 300                 homedir_len = 0;
 301         logon_script = pdb_get_logon_script(sampass);
 302         if (logon_script)
 303                 logon_script_len = strlen(logon_script) +1;
 304         else
 305                 logon_script_len = 0;
 306         profile_path = pdb_get_profile_path(sampass);
 307         if (profile_path)
 308                 profile_path_len = strlen(profile_path) +1;
 309         else
 310                 profile_path_len = 0;
 311         acct_desc = pdb_get_acct_desc(sampass);
 312         if (acct_desc)
 313                 acct_desc_len = strlen(acct_desc) +1;
 314         else
 315                 acct_desc_len = 0;
 316         workstations = pdb_get_workstations(sampass);
 317         if (workstations)
 318                 workstations_len = strlen(workstations) +1;
 319         else
 320                 workstations_len = 0;
 321
 322         lm_pw = pdb_get_lanman_passwd(sampass);
 323         if (!lm_pw)
 324                 lm_pw_len = 0;
 325
 326         nt_pw = pdb_get_nt_passwd(sampass);
 327         if (!nt_pw)
 328                 nt_pw_len = 0;
 329
 330         /* one time to get the size needed */
 331         len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING,
 332                 logon_time,
 333                 logoff_time,
 334                 kickoff_time,
 335                 pass_last_set_time,
 336                 pass_can_change_time,
 337                 pass_must_change_time,
 338                 username_len, username,
 339                 domain_len, domain,
 340                 nt_username_len, nt_username,
 341                 fullname_len, fullname,
 342                 homedir_len, homedir,
 343                 dir_drive_len, dir_drive,
 344                 logon_script_len, logon_script,
 345                 profile_path_len, profile_path,
 346                 acct_desc_len, acct_desc,
 347                 workstations_len, workstations,
 348                 unknown_str_len, unknown_str,
 349                 munged_dial_len, munged_dial,
 350                 user_rid,
 351                 group_rid,
 352                 lm_pw_len, lm_pw,
 353                 nt_pw_len, nt_pw,
 354                 pdb_get_acct_ctrl(sampass),
 355                 pdb_get_unknown3(sampass),
 356                 pdb_get_logon_divs(sampass),
 357                 pdb_get_hours_len(sampass),
 358                 MAX_HOURS_LEN, pdb_get_hours(sampass),
 359                 pdb_get_unknown5(sampass),
 360                 pdb_get_unknown6(sampass));
 361
 362
 363         /* malloc the space needed */
 364         if ( (*buf=(uint8*)malloc(len)) == NULL) {
 365                 DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
 366                 return (-1);
 367         }
 368
 369         /* now for the real call to tdb_pack() */
 370         buflen = tdb_pack(*buf, len,  TDB_FORMAT_STRING,
 371                 logon_time,
 372                 logoff_time,
 373                 kickoff_time,
 374                 pass_last_set_time,
 375                 pass_can_change_time,
 376                 pass_must_change_time,
 377                 username_len, username,
 378                 domain_len, domain,
 379                 nt_username_len, nt_username,
 380                 fullname_len, fullname,
 381                 homedir_len, homedir,
 382                 dir_drive_len, dir_drive,
 383                 logon_script_len, logon_script,
 384                 profile_path_len, profile_path,
 385                 acct_desc_len, acct_desc,
 386                 workstations_len, workstations,
 387                 unknown_str_len, unknown_str,
 388                 munged_dial_len, munged_dial,
 389                 user_rid,
 390                 group_rid,
 391                 lm_pw_len, lm_pw,
 392                 nt_pw_len, nt_pw,
 393                 pdb_get_acct_ctrl(sampass),
 394                 pdb_get_unknown3(sampass),
 395                 pdb_get_logon_divs(sampass),
 396                 pdb_get_hours_len(sampass),
 397                 MAX_HOURS_LEN, pdb_get_hours(sampass),
 398                 pdb_get_unknown5(sampass),
 399                 pdb_get_unknown6(sampass));
 400
 401
 402         /* check to make sure we got it correct */
 403         if (buflen != len) {
 404                 DEBUG(0, ("init_buffer_from_sam: somthing odd is going on here: bufflen (%d) != len (%d) in tdb_pack operations!\n",
 405                           buflen, len));
 406                 /* error */
 407                 SAFE_FREE (*buf);
 408                 return (-1);
 409         }
 410
 411         return (buflen);
 412 }
 413
 414 /***************************************************************
 415  Open the TDB passwd database for SAM account enumeration.
 416 ****************************************************************/
 417
 418 static BOOL tdbsam_setsampwent(struct pdb_context *context, BOOL update)
 419 {
 420         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 421
 422         /* Open tdb passwd */
 423         if (!(tdb_state->passwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, update?(O_RDWR|O_CREAT):O_RDONLY, 0600)))
 424         {
 425                 DEBUG(0, ("Unable to open/create TDB passwd\n"));
 426                 return False;
 427         }
 428
 429         tdb_state->key = tdb_firstkey(tdb_state->passwd_tdb);
 430
 431         return True;
 432 }
 433
 434 static void close_tdb(struct tdbsam_privates *tdb_state)
 435 {
 436         if (tdb_state->passwd_tdb) {
 437                 tdb_close(tdb_state->passwd_tdb);
 438                 tdb_state->passwd_tdb = NULL;
 439         }
 440 }
 441
 442 /***************************************************************
 443  End enumeration of the TDB passwd list.
 444 ****************************************************************/
 445
 446 static void tdbsam_endsampwent(struct pdb_context *context)
 447 {
 448         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 449         close_tdb(tdb_state);
 450
 451         DEBUG(7, ("endtdbpwent: closed sam database.\n"));
 452 }
 453
 454 /*****************************************************************
 455  Get one SAM_ACCOUNT from the TDB (next in line)
 456 *****************************************************************/
 457
 458 static BOOL tdbsam_getsampwent(struct pdb_context *context, SAM_ACCOUNT *user)
 459 {
 460         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 461         TDB_DATA        data;
 462         char *prefix = USERPREFIX;
 463         int  prefixlen = strlen (prefix);
 464
 465
 466         if (user==NULL) {
 467                 DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n"));
 468                 return False;
 469         }
 470
 471         /* skip all non-USER entries (eg. RIDs) */
 472         while ((tdb_state->key.dsize != 0) && (strncmp(tdb_state->key.dptr, prefix, prefixlen)))
 473                 /* increment to next in line */
 474                 tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
 475
 476         /* do we have an valid interation pointer? */
 477         if(tdb_state->passwd_tdb == NULL) {
 478                 DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n"));
 479                 return False;
 480         }
 481
 482         data = tdb_fetch(tdb_state->passwd_tdb, tdb_state->key);
 483         if (!data.dptr) {
 484                 DEBUG(5,("pdb_getsampwent: database entry not found.\n"));
 485                 return False;
 486         }
 487
 488         /* unpack the buffer */
 489         if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
 490                 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
 491                 SAFE_FREE(data.dptr);
 492                 return False;
 493         }
 494         SAFE_FREE(data.dptr);
 495
 496         /* increment to next in line */
 497         tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
 498
 499         return True;
 500 }
 501
 502 /******************************************************************
 503  Lookup a name in the SAM TDB
 504 ******************************************************************/
 505
 506 static BOOL tdbsam_getsampwnam (struct pdb_context *context, SAM_ACCOUNT *user, const char *sname)
 507 {
 508         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 509         TDB_CONTEXT     *pwd_tdb;
 510         TDB_DATA        data, key;
 511         fstring         keystr;
 512         fstring         name;
 513
 514         if (user==NULL) {
 515                 DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
 516                 return False;
 517         }
 518
 519         /* Data is stored in all lower-case */
 520         unix_strlower(sname, -1, name, sizeof(name));
 521
 522         /* set search key */
 523         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 524         key.dptr = keystr;
 525         key.dsize = strlen(keystr) + 1;
 526
 527         /* open the accounts TDB */
 528         if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
 529                 DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
 530                 return False;
 531         }
 532
 533         /* get the record */
 534         data = tdb_fetch(pwd_tdb, key);
 535         if (!data.dptr) {
 536                 DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n"));
 537                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 538                 DEBUGADD(5, (" Key: %s\n", keystr));
 539                 tdb_close(pwd_tdb);
 540                 return False;
 541         }
 542
 543         /* unpack the buffer */
 544         if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
 545                 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
 546                 SAFE_FREE(data.dptr);
 547                 tdb_close(pwd_tdb);
 548                 return False;
 549         }
 550         SAFE_FREE(data.dptr);
 551
 552         /* no further use for database, close it now */
 553         tdb_close(pwd_tdb);
 554
 555         return True;
 556 }
 557
 558 /***************************************************************************
 559  Search by rid
 560  **************************************************************************/
 561
 562 static BOOL tdbsam_getsampwrid (struct pdb_context *context, SAM_ACCOUNT *user, uint32 rid)
 563 {
 564         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 565         TDB_CONTEXT             *pwd_tdb;
 566         TDB_DATA                data, key;
 567         fstring                 keystr;
 568         fstring                 name;
 569
 570         if (user==NULL) {
 571                 DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n"));
 572                 return False;
 573         }
 574
 575         /* set search key */
 576         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
 577         key.dptr = keystr;
 578         key.dsize = strlen (keystr) + 1;
 579
 580         /* open the accounts TDB */
 581         if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
 582                 DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n"));
 583                 return False;
 584         }
 585
 586         /* get the record */
 587         data = tdb_fetch (pwd_tdb, key);
 588         if (!data.dptr) {
 589                 DEBUG(5,("pdb_getsampwrid (TDB): error fetching database.\n"));
 590                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 591                 tdb_close (pwd_tdb);
 592                 return False;
 593         }
 594
 595         fstrcpy (name, data.dptr);
 596         SAFE_FREE(data.dptr);
 597
 598         tdb_close (pwd_tdb);
 599
 600         return tdbsam_getsampwnam (context, user, name);
 601 }
 602
 603 /***************************************************************************
 604  Delete a SAM_ACCOUNT
 605 ****************************************************************************/
 606
 607 static BOOL tdbsam_delete_sam_account(struct pdb_context *context, const SAM_ACCOUNT *sam_pass)
 608 {
 609         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 610         TDB_CONTEXT     *pwd_tdb;
 611         TDB_DATA        key;
 612         fstring         keystr;
 613         uint32          rid;
 614         fstring         name;
 615
 616         unix_strlower(pdb_get_username(sam_pass), -1, name, sizeof(name));
 617
 618         /* open the TDB */
 619         if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR, 0600))) {
 620                 DEBUG(0, ("Unable to open TDB passwd!"));
 621                 return False;
 622         }
 623
 624         /* set the search key */
 625         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 626         key.dptr = keystr;
 627         key.dsize = strlen (keystr) + 1;
 628
 629         rid = pdb_get_user_rid(sam_pass);
 630
 631         /* it's outaa here!  8^) */
 632         if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
 633                 DEBUG(5, ("Error deleting entry from tdb passwd database!\n"));
 634                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 635                 tdb_close(pwd_tdb);
 636                 return False;
 637         }
 638
 639         /* delete also the RID key */
 640
 641         /* set the search key */
 642         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
 643         key.dptr = keystr;
 644         key.dsize = strlen (keystr) + 1;
 645
 646         /* it's outaa here!  8^) */
 647         if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
 648                 DEBUG(5, ("Error deleting entry from tdb rid database!\n"));
 649                 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 650                 tdb_close(pwd_tdb);
 651                 return False;
 652         }
 653
 654         tdb_close(pwd_tdb);
 655
 656         return True;
 657 }
 658
 659 /***************************************************************************
 660  Update the TDB SAM
 661 ****************************************************************************/
 662
 663 static BOOL tdb_update_sam(struct pdb_context *context, const SAM_ACCOUNT* newpwd, int flag)
 664 {
 665         struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)context->pdb_selected->private_data;
 666         TDB_CONTEXT     *pwd_tdb = NULL;
 667         TDB_DATA        key, data;
 668         uint8           *buf = NULL;
 669         fstring         keystr;
 670         fstring         name;
 671         BOOL            ret = True;
 672         uint32          user_rid;
 673         uint32         group_rid;
 674         int32          tdb_ret;
 675
 676         /* invalidate the existing TDB iterator if it is open */
 677         if (tdb_state->passwd_tdb) {
 678                 tdb_close(tdb_state->passwd_tdb);
 679                 tdb_state->passwd_tdb = NULL;
 680         }
 681
 682         /* open the account TDB passwd*/
 683         pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
 684         if (!pwd_tdb)
 685         {
 686                 DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
 687                 return False;
 688         }
 689
 690         /* if we don't have a RID, then make them up. */
 691         if (!(user_rid = pdb_get_user_rid(newpwd))) {
 692                 if (!tdb_state->permit_non_unix_accounts) {
 693                         DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a RID\n",pdb_get_username(newpwd)));
 694                         ret = False;
 695                         goto done;
 696                 } else {
 697                         user_rid = tdb_state->low_nua_rid;
 698                         tdb_ret = tdb_change_int32_atomic(pwd_tdb, "NUA_NEXT_RID", &user_rid, RID_MULTIPLIER);
 699                         if (tdb_ret == -1) {
 700                                 ret = False;
 701                                 goto done;
 702                         }
 703                 }
 704         }
 705
 706         if (!(group_rid = pdb_get_group_rid(newpwd))) {
 707                 if (!tdb_state->permit_non_unix_accounts) {
 708                         DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
 709                         ret = False;
 710                         goto done;
 711                 } else {
 712                         /* This seems like a good default choice for non-unix users */
 713                         group_rid = DOMAIN_GROUP_RID_USERS;
 714                 }
 715         }
 716
 717         /* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */
 718         if ((data.dsize=init_buffer_from_sam (tdb_state, &buf, newpwd, user_rid, group_rid)) == -1) {
 719                 DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n"));
 720                 ret = False;
 721                 goto done;
 722         }
 723         data.dptr = buf;
 724
 725         unix_strlower(pdb_get_username(newpwd), -1, name, sizeof(name));
 726
 727         DEBUG(5, ("Storing %saccount %s with RID %d\n", flag == TDB_INSERT ? "(new) " : "", name, user_rid));
 728
 729         /* setup the USER index key */
 730         slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
 731         key.dptr = keystr;
 732         key.dsize = strlen (keystr) + 1;
 733
 734         /* add the account */
 735         if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
 736                 DEBUG(0, ("Unable to modify passwd TDB!"));
 737                 DEBUGADD(0, (" Error: %s", tdb_errorstr(pwd_tdb)));
 738                 DEBUGADD(0, (" occured while storing the main record (%s)\n", keystr));
 739                 ret = False;
 740                 goto done;
 741         }
 742
 743         /* setup RID data */
 744         data.dsize = sizeof(fstring);
 745         data.dptr = name;
 746
 747         /* setup the RID index key */
 748         slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, user_rid);
 749         key.dptr = keystr;
 750         key.dsize = strlen (keystr) + 1;
 751
 752         /* add the reference */
 753         if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
 754                 DEBUG(0, ("Unable to modify TDB passwd !"));
 755                 DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
 756                 DEBUGADD(0, (" occured while storing the RID index (%s)\n", keystr));
 757                 ret = False;
 758                 goto done;
 759         }
 760
 761 done:
 762         /* cleanup */
 763         tdb_close (pwd_tdb);
 764         SAFE_FREE(buf);
 765
 766         return (ret);
 767 }
 768
 769 /***************************************************************************
 770  Modifies an existing SAM_ACCOUNT
 771 ****************************************************************************/
 772
 773 static BOOL tdbsam_update_sam_account (struct pdb_context *context, const SAM_ACCOUNT *newpwd)
 774 {
 775         return (tdb_update_sam(context, newpwd, TDB_MODIFY));
 776 }
 777
 778 /***************************************************************************
 779  Adds an existing SAM_ACCOUNT
 780 ****************************************************************************/
 781
 782 static BOOL tdbsam_add_sam_account (struct pdb_context *context, const SAM_ACCOUNT *newpwd)
 783 {
 784         return (tdb_update_sam(context, newpwd, TDB_INSERT));
 785 }
 786
 787 static void free_private_data(void **vp)
 788 {
 789         struct tdbsam_privates **tdb_state = (struct tdbsam_privates **)vp;
 790         close_tdb(*tdb_state);
 791         *tdb_state = NULL;
 792
 793         /* No need to free any further, as it is talloc()ed */
 794 }
 795
 796
 797 NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 798 {
 799         NTSTATUS nt_status;
 800         struct tdbsam_privates *tdb_state;
 801
 802         if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
 803                 return nt_status;
 804         }
 805
 806         (*pdb_method)->setsampwent = tdbsam_setsampwent;
 807         (*pdb_method)->endsampwent = tdbsam_endsampwent;
 808         (*pdb_method)->getsampwent = tdbsam_getsampwent;
 809         (*pdb_method)->getsampwnam = tdbsam_getsampwnam;
 810         (*pdb_method)->getsampwrid = tdbsam_getsampwrid;
 811         (*pdb_method)->add_sam_account = tdbsam_add_sam_account;
 812         (*pdb_method)->update_sam_account = tdbsam_update_sam_account;
 813         (*pdb_method)->delete_sam_account = tdbsam_delete_sam_account;
 814
 815         /* TODO: Setup private data and free */
 816
 817         tdb_state = talloc_zero(pdb_context->mem_ctx, sizeof(struct tdbsam_privates));
 818
 819         if (!tdb_state) {
 820                 DEBUG(0, ("talloc() failed for tdbsam private_data!\n"));
 821                 return NT_STATUS_NO_MEMORY;
 822         }
 823
 824         if (location) {
 825                 tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, location);
 826         } else {
 827                 pstring tdbfile;
 828                 get_private_directory(tdbfile);
 829                 pstrcat (tdbfile, PASSDB_FILE_NAME);
 830                 tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, tdbfile);
 831         }
 832
 833         (*pdb_method)->private_data = tdb_state;
 834
 835         (*pdb_method)->free_private_data = free_private_data;
 836
 837         return NT_STATUS_OK;
 838 }
 839
 840 NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 841 {
 842         NTSTATUS nt_status;
 843         struct tdbsam_privates *tdb_state;
 844         uint32 low_nua_uid, high_nua_uid;
 845
 846         if (!NT_STATUS_IS_OK(nt_status = pdb_init_tdbsam(pdb_context, pdb_method, location))) {
 847                 return nt_status;
 848         }
 849
 850         tdb_state = (*pdb_method)->private_data;
 851
 852         tdb_state->permit_non_unix_accounts = True;
 853
 854         if (!lp_non_unix_account_range(&low_nua_uid, &high_nua_uid)) {
 855                 DEBUG(0, ("cannot use tdbsam_nua without 'non unix account range' in smb.conf!\n"));
 856                 return NT_STATUS_UNSUCCESSFUL;
 857         }
 858
 859         tdb_state->low_nua_rid=pdb_uid_to_user_rid(low_nua_uid);
 860
 861         tdb_state->high_nua_rid=pdb_uid_to_user_rid(high_nua_uid);
 862
 863         return NT_STATUS_OK;
 864 }
 865
 866
 867 #else
 868
 869 NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 870 {
 871         DEBUG(0, ("tdbsam not compiled in!\n"));
 872         return NT_STATUS_UNSUCCESSFUL;
 873 }
 874
 875 NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 876 {
 877         DEBUG(0, ("tdbsam_nua not compiled in!\n"));
 878         return NT_STATUS_UNSUCCESSFUL;
 879 }
 880
 881
 882 #endif