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