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change ADS negprot to match more closely the options used by w2k. This
[Samba.git] / source / passdb / pdb_tdb.c
blob27453fc1af76f2557eb5e992466d431feefc07a1
1 /*
2 * Unix SMB/CIFS implementation.
3 * SMB parameters and setup
4 * Copyright (C) Andrew Tridgell 1992-1998
5 * Copyright (C) Simo Sorce 2000-2002
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 #if 0 /* when made a module use this */
28
29 static int tdbsam_debug_level = DBGC_ALL;
30 #undef DBGC_CLASS
31 #define DBGC_CLASS tdbsam_debug_level
32
33 #else
34
35 #undef DBGC_CLASS
36 #define DBGC_CLASS DBGC_PASSDB
37
38 #endif
39
40 #ifdef WITH_TDB_SAM
41
42 #define PDB_VERSION "20010830"
43 #define PASSDB_FILE_NAME "passdb.tdb"
44 #define TDB_FORMAT_STRING "ddddddBBBBBBBBBBBBddBBwdwdBdd"
45 #define USERPREFIX "USER_"
46 #define RIDPREFIX "RID_"
47
48 struct tdbsam_privates {
49 TDB_CONTEXT *passwd_tdb;
50 TDB_DATA key;
51
52 /* retrive-once info */
53 const char *tdbsam_location;
54
55 BOOL permit_non_unix_accounts;
56
57 BOOL algorithmic_rids;
58
59 uint32 low_nua_rid;
60 uint32 high_nua_rid;
61 };
62
63 /**********************************************************************
64 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
65 *********************************************************************/
66
67 static BOOL init_sam_from_buffer (struct tdbsam_privates *tdb_state,
68 SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
69 {
70
71 /* times are stored as 32bit integer
72 take care on system with 64bit wide time_t
73 --SSS */
74 uint32 logon_time,
75 logoff_time,
76 kickoff_time,
77 pass_last_set_time,
78 pass_can_change_time,
79 pass_must_change_time;
80 char *username;
81 char *domain;
82 char *nt_username;
83 char *dir_drive;
84 char *unknown_str;
85 char *munged_dial;
86 char *fullname;
87 char *homedir;
88 char *logon_script;
89 char *profile_path;
90 char *acct_desc;
91 char *workstations;
92 uint32 username_len, domain_len, nt_username_len,
93 dir_drive_len, unknown_str_len, munged_dial_len,
94 fullname_len, homedir_len, logon_script_len,
95 profile_path_len, acct_desc_len, workstations_len;
96
97 uint32 user_rid, group_rid, unknown_3, hours_len, unknown_5, unknown_6;
98 uint16 acct_ctrl, logon_divs;
99 uint8 *hours;
100 static uint8 *lm_pw_ptr, *nt_pw_ptr;
101 uint32 len = 0;
102 uint32 lm_pw_len, nt_pw_len, hourslen;
103 BOOL ret = True;
104 struct passwd *pw;
105 uid_t uid = -1;
106 gid_t gid = -1; /* This is what standard sub advanced expects if no gid is known */
107
108 if(sampass == NULL || buf == NULL) {
109 DEBUG(0, ("init_sam_from_buffer: NULL parameters found!\n"));
110 return False;
111 }
112
113 /* unpack the buffer into variables */
114 len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING,
115 &logon_time,
116 &logoff_time,
117 &kickoff_time,
118 &pass_last_set_time,
119 &pass_can_change_time,
120 &pass_must_change_time,
121 &username_len, &username,
122 &domain_len, &domain,
123 &nt_username_len, &nt_username,
124 &fullname_len, &fullname,
125 &homedir_len, &homedir,
126 &dir_drive_len, &dir_drive,
127 &logon_script_len, &logon_script,
128 &profile_path_len, &profile_path,
129 &acct_desc_len, &acct_desc,
130 &workstations_len, &workstations,
131 &unknown_str_len, &unknown_str,
132 &munged_dial_len, &munged_dial,
133 &user_rid,
134 &group_rid,
135 &lm_pw_len, &lm_pw_ptr,
136 &nt_pw_len, &nt_pw_ptr,
137 &acct_ctrl,
138 &unknown_3,
139 &logon_divs,
140 &hours_len,
141 &hourslen, &hours,
142 &unknown_5,
143 &unknown_6);
144
145 if (len == -1) {
146 ret = False;
147 goto done;
148 }
149
150 /* validate the account and fill in UNIX uid and gid. Standard
151 * getpwnam() is used instead of Get_Pwnam() as we do not need
152 * to try case permutations
153 */
154 if (!username || !(pw = getpwnam_alloc(username))) {
155 if (!(tdb_state->permit_non_unix_accounts)) {
156 DEBUG(0,("tdbsam: getpwnam_alloc(%s) return NULL. User does not exist!\n", username));
157 ret = False;
158 goto done;
159 }
160 }
161
162 if (pw) {
163 uid = pw->pw_uid;
164 gid = pw->pw_gid;
165
166 pdb_set_unix_homedir(sampass, pw->pw_dir);
167
168 passwd_free(&pw);
169
170 pdb_set_uid(sampass, uid);
171 pdb_set_gid(sampass, gid);
172 }
173
174 pdb_set_logon_time(sampass, logon_time, True);
175 pdb_set_logoff_time(sampass, logoff_time, True);
176 pdb_set_kickoff_time(sampass, kickoff_time, True);
177 pdb_set_pass_can_change_time(sampass, pass_can_change_time, True);
178 pdb_set_pass_must_change_time(sampass, pass_must_change_time, True);
179 pdb_set_pass_last_set_time(sampass, pass_last_set_time);
180
181 pdb_set_username (sampass, username);
182 pdb_set_domain (sampass, domain);
183 pdb_set_nt_username (sampass, nt_username);
184 pdb_set_fullname (sampass, fullname);
185
186 if (homedir) {
187 pdb_set_homedir(sampass, homedir, True);
188 }
189 else {
190 pdb_set_homedir(sampass,
191 talloc_sub_specified(sampass->mem_ctx,
192 lp_logon_home(),
193 username, domain,
194 uid, gid),
195 False);
196 }
197
198 if (dir_drive)
199 pdb_set_dir_drive(sampass, dir_drive, True);
200 else {
201 pdb_set_dir_drive(sampass,
202 talloc_sub_specified(sampass->mem_ctx,
203 lp_logon_drive(),
204 username, domain,
205 uid, gid),
206 False);
207 }
208
209 if (logon_script)
210 pdb_set_logon_script(sampass, logon_script, True);
211 else {
212 pdb_set_logon_script(sampass,
213 talloc_sub_specified(sampass->mem_ctx,
214 lp_logon_script(),
215 username, domain,
216 uid, gid),
217 False);
218 }
219
220 if (profile_path) {
221 pdb_set_profile_path(sampass, profile_path, True);
222 } else {
223 pdb_set_profile_path(sampass,
224 talloc_sub_specified(sampass->mem_ctx,
225 lp_logon_path(),
226 username, domain,
227 uid, gid),
228 False);
229 }
230
231 pdb_set_acct_desc (sampass, acct_desc);
232 pdb_set_workstations (sampass, workstations);
233 pdb_set_munged_dial (sampass, munged_dial);
234
235 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
236 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr)) {
237 ret = False;
238 goto done;
239 }
240 }
241
242 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
243 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr)) {
244 ret = False;
245 goto done;
246 }
247 }
248
249 pdb_set_user_sid_from_rid(sampass, user_rid);
250 pdb_set_group_sid_from_rid(sampass, group_rid);
251 pdb_set_unknown_3(sampass, unknown_3);
252 pdb_set_hours_len(sampass, hours_len);
253 pdb_set_unknown_5(sampass, unknown_5);
254 pdb_set_unknown_6(sampass, unknown_6);
255 pdb_set_acct_ctrl(sampass, acct_ctrl);
256 pdb_set_logon_divs(sampass, logon_divs);
257 pdb_set_hours(sampass, hours);
258
259 done:
260
261 SAFE_FREE(username);
262 SAFE_FREE(domain);
263 SAFE_FREE(nt_username);
264 SAFE_FREE(fullname);
265 SAFE_FREE(homedir);
266 SAFE_FREE(dir_drive);
267 SAFE_FREE(logon_script);
268 SAFE_FREE(profile_path);
269 SAFE_FREE(acct_desc);
270 SAFE_FREE(workstations);
271 SAFE_FREE(munged_dial);
272
273 return ret;
274 }
275
276 /**********************************************************************
277 Intialize a BYTE buffer from a SAM_ACCOUNT struct
278 *********************************************************************/
279 static uint32 init_buffer_from_sam (struct tdbsam_privates *tdb_state,
280 uint8 **buf, const SAM_ACCOUNT *sampass)
281 {
282 size_t len, buflen;
283
284 /* times are stored as 32bit integer
285 take care on system with 64bit wide time_t
286 --SSS */
287 uint32 logon_time,
288 logoff_time,
289 kickoff_time,
290 pass_last_set_time,
291 pass_can_change_time,
292 pass_must_change_time;
293
294 uint32 user_rid, group_rid;
295
296 const char *username;
297 const char *domain;
298 const char *nt_username;
299 const char *dir_drive;
300 const char *unknown_str;
301 const char *munged_dial;
302 const char *fullname;
303 const char *homedir;
304 const char *logon_script;
305 const char *profile_path;
306 const char *acct_desc;
307 const char *workstations;
308 uint32 username_len, domain_len, nt_username_len,
309 dir_drive_len, unknown_str_len, munged_dial_len,
310 fullname_len, homedir_len, logon_script_len,
311 profile_path_len, acct_desc_len, workstations_len;
312
313 const uint8 *lm_pw;
314 const uint8 *nt_pw;
315 uint32 lm_pw_len = 16;
316 uint32 nt_pw_len = 16;
317
318 /* do we have a valid SAM_ACCOUNT pointer? */
319 if (sampass == NULL) {
320 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
321 return -1;
322 }
323
324 *buf = NULL;
325 buflen = 0;
326
327 logon_time = (uint32)pdb_get_logon_time(sampass);
328 logoff_time = (uint32)pdb_get_logoff_time(sampass);
329 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
330 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
331 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
332 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
333
334 user_rid = pdb_get_user_rid(sampass);
335 group_rid = pdb_get_group_rid(sampass);
336
337 username = pdb_get_username(sampass);
338 if (username) username_len = strlen(username) +1;
339 else username_len = 0;
340
341 domain = pdb_get_domain(sampass);
342 if (domain) domain_len = strlen(domain) +1;
343 else domain_len = 0;
344
345 nt_username = pdb_get_nt_username(sampass);
346 if (nt_username) nt_username_len = strlen(nt_username) +1;
347 else nt_username_len = 0;
348
349 fullname = pdb_get_fullname(sampass);
350 if (fullname) fullname_len = strlen(fullname) +1;
351 else fullname_len = 0;
352
353 /*
354 * Only updates fields which have been set (not defaults from smb.conf)
355 */
356
357 if (IS_SAM_SET(sampass, FLAG_SAM_DRIVE))
358 dir_drive = pdb_get_dir_drive(sampass);
359 else dir_drive = NULL;
360 if (dir_drive) dir_drive_len = strlen(dir_drive) +1;
361 else dir_drive_len = 0;
362
363 if (IS_SAM_SET(sampass, FLAG_SAM_SMBHOME)) homedir = pdb_get_homedir(sampass);
364 else homedir = NULL;
365 if (homedir) homedir_len = strlen(homedir) +1;
366 else homedir_len = 0;
367
368 if (IS_SAM_SET(sampass, FLAG_SAM_LOGONSCRIPT)) logon_script = pdb_get_logon_script(sampass);
369 else logon_script = NULL;
370 if (logon_script) logon_script_len = strlen(logon_script) +1;
371 else logon_script_len = 0;
372
373 if (IS_SAM_SET(sampass, FLAG_SAM_PROFILE)) profile_path = pdb_get_profile_path(sampass);
374 else profile_path = NULL;
375 if (profile_path) profile_path_len = strlen(profile_path) +1;
376 else profile_path_len = 0;
377
378 lm_pw = pdb_get_lanman_passwd(sampass);
379 if (!lm_pw) lm_pw_len = 0;
380
381 nt_pw = pdb_get_nt_passwd(sampass);
382 if (!nt_pw) nt_pw_len = 0;
383
384 acct_desc = pdb_get_acct_desc(sampass);
385 if (acct_desc) acct_desc_len = strlen(acct_desc) +1;
386 else acct_desc_len = 0;
387
388 workstations = pdb_get_workstations(sampass);
389 if (workstations) workstations_len = strlen(workstations) +1;
390 else workstations_len = 0;
391
392 unknown_str = NULL;
393 unknown_str_len = 0;
394
395 munged_dial = pdb_get_munged_dial(sampass);
396 if (munged_dial) munged_dial_len = strlen(munged_dial) +1;
397 else munged_dial_len = 0;
398
399 /* one time to get the size needed */
400 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING,
401 logon_time,
402 logoff_time,
403 kickoff_time,
404 pass_last_set_time,
405 pass_can_change_time,
406 pass_must_change_time,
407 username_len, username,
408 domain_len, domain,
409 nt_username_len, nt_username,
410 fullname_len, fullname,
411 homedir_len, homedir,
412 dir_drive_len, dir_drive,
413 logon_script_len, logon_script,
414 profile_path_len, profile_path,
415 acct_desc_len, acct_desc,
416 workstations_len, workstations,
417 unknown_str_len, unknown_str,
418 munged_dial_len, munged_dial,
419 user_rid,
420 group_rid,
421 lm_pw_len, lm_pw,
422 nt_pw_len, nt_pw,
423 pdb_get_acct_ctrl(sampass),
424 pdb_get_unknown3(sampass),
425 pdb_get_logon_divs(sampass),
426 pdb_get_hours_len(sampass),
427 MAX_HOURS_LEN, pdb_get_hours(sampass),
428 pdb_get_unknown5(sampass),
429 pdb_get_unknown6(sampass));
430
431
432 /* malloc the space needed */
433 if ( (*buf=(uint8*)malloc(len)) == NULL) {
434 DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
435 return (-1);
436 }
437
438 /* now for the real call to tdb_pack() */
439 buflen = tdb_pack(*buf, len, TDB_FORMAT_STRING,
440 logon_time,
441 logoff_time,
442 kickoff_time,
443 pass_last_set_time,
444 pass_can_change_time,
445 pass_must_change_time,
446 username_len, username,
447 domain_len, domain,
448 nt_username_len, nt_username,
449 fullname_len, fullname,
450 homedir_len, homedir,
451 dir_drive_len, dir_drive,
452 logon_script_len, logon_script,
453 profile_path_len, profile_path,
454 acct_desc_len, acct_desc,
455 workstations_len, workstations,
456 unknown_str_len, unknown_str,
457 munged_dial_len, munged_dial,
458 user_rid,
459 group_rid,
460 lm_pw_len, lm_pw,
461 nt_pw_len, nt_pw,
462 pdb_get_acct_ctrl(sampass),
463 pdb_get_unknown3(sampass),
464 pdb_get_logon_divs(sampass),
465 pdb_get_hours_len(sampass),
466 MAX_HOURS_LEN, pdb_get_hours(sampass),
467 pdb_get_unknown5(sampass),
468 pdb_get_unknown6(sampass));
469
470
471 /* check to make sure we got it correct */
472 if (buflen != len) {
473 DEBUG(0, ("init_buffer_from_sam: somthing odd is going on here: bufflen (%d) != len (%d) in tdb_pack operations!\n",
474 buflen, len));
475 /* error */
476 SAFE_FREE (*buf);
477 return (-1);
478 }
479
480 return (buflen);
481 }
482
483 /***************************************************************
484 Open the TDB passwd database for SAM account enumeration.
485 ****************************************************************/
486
487 static BOOL tdbsam_setsampwent(struct pdb_methods *my_methods, BOOL update)
488 {
489 struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
490
491 /* Open tdb passwd */
492 if (!(tdb_state->passwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, update?(O_RDWR|O_CREAT):O_RDONLY, 0600)))
493 {
494 DEBUG(0, ("Unable to open/create TDB passwd\n"));
495 return False;
496 }
497
498 tdb_state->key = tdb_firstkey(tdb_state->passwd_tdb);
499
500 return True;
501 }
502
503 static void close_tdb(struct tdbsam_privates *tdb_state)
504 {
505 if (tdb_state->passwd_tdb) {
506 tdb_close(tdb_state->passwd_tdb);
507 tdb_state->passwd_tdb = NULL;
508 }
509 }
510
511 /***************************************************************
512 End enumeration of the TDB passwd list.
513 ****************************************************************/
514
515 static void tdbsam_endsampwent(struct pdb_methods *my_methods)
516 {
517 struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
518 close_tdb(tdb_state);
519
520 DEBUG(7, ("endtdbpwent: closed sam database.\n"));
521 }
522
523 /*****************************************************************
524 Get one SAM_ACCOUNT from the TDB (next in line)
525 *****************************************************************/
526
527 static BOOL tdbsam_getsampwent(struct pdb_methods *my_methods, SAM_ACCOUNT *user)
528 {
529 struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
530 TDB_DATA data;
531 char *prefix = USERPREFIX;
532 int prefixlen = strlen (prefix);
533
534
535 if (user==NULL) {
536 DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n"));
537 return False;
538 }
539
540 /* skip all non-USER entries (eg. RIDs) */
541 while ((tdb_state->key.dsize != 0) && (strncmp(tdb_state->key.dptr, prefix, prefixlen)))
542 /* increment to next in line */
543 tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
544
545 /* do we have an valid iteration pointer? */
546 if(tdb_state->passwd_tdb == NULL) {
547 DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n"));
548 return False;
549 }
550
551 data = tdb_fetch(tdb_state->passwd_tdb, tdb_state->key);
552 if (!data.dptr) {
553 DEBUG(5,("pdb_getsampwent: database entry not found.\n"));
554 return False;
555 }
556
557 /* unpack the buffer */
558 if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
559 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
560 SAFE_FREE(data.dptr);
561 return False;
562 }
563 SAFE_FREE(data.dptr);
564
565 /* increment to next in line */
566 tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
567
568 return True;
569 }
570
571 /******************************************************************
572 Lookup a name in the SAM TDB
573 ******************************************************************/
574
575 static BOOL tdbsam_getsampwnam (struct pdb_methods *my_methods, SAM_ACCOUNT *user, const char *sname)
576 {
577 struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
578 TDB_CONTEXT *pwd_tdb;
579 TDB_DATA data, key;
580 fstring keystr;
581 fstring name;
582
583 if (user==NULL) {
584 DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
585 return False;
586 }
587
588 /* Data is stored in all lower-case */
589 unix_strlower(sname, -1, name, sizeof(name));
590
591 /* set search key */
592 slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
593 key.dptr = keystr;
594 key.dsize = strlen(keystr) + 1;
595
596 /* open the accounts TDB */
597 if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
598 DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
599 return False;
600 }
601
602 /* get the record */
603 data = tdb_fetch(pwd_tdb, key);
604 if (!data.dptr) {
605 DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n"));
606 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
607 DEBUGADD(5, (" Key: %s\n", keystr));
608 tdb_close(pwd_tdb);
609 return False;
610 }
611
612 /* unpack the buffer */
613 if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
614 DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
615 SAFE_FREE(data.dptr);
616 tdb_close(pwd_tdb);
617 return False;
618 }
619 SAFE_FREE(data.dptr);
620
621 /* no further use for database, close it now */
622 tdb_close(pwd_tdb);
623
624 return True;
625 }
626
627 /***************************************************************************
628 Search by rid
629 **************************************************************************/
630
631 static BOOL tdbsam_getsampwrid (struct pdb_methods *my_methods, SAM_ACCOUNT *user, uint32 rid)
632 {
633 struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
634 TDB_CONTEXT *pwd_tdb;
635 TDB_DATA data, key;
636 fstring keystr;
637 fstring name;
638
639 if (user==NULL) {
640 DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n"));
641 return False;
642 }
643
644 /* set search key */
645 slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
646 key.dptr = keystr;
647 key.dsize = strlen (keystr) + 1;
648
649 /* open the accounts TDB */
650 if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
651 DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n"));
652 return False;
653 }
654
655 /* get the record */
656 data = tdb_fetch (pwd_tdb, key);
657 if (!data.dptr) {
658 DEBUG(5,("pdb_getsampwrid (TDB): error looking up RID %d by key %s.\n", rid, keystr));
659 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
660 tdb_close (pwd_tdb);
661 return False;
662 }
663
664 fstrcpy (name, data.dptr);
665 SAFE_FREE(data.dptr);
666
667 tdb_close (pwd_tdb);
668
669 return tdbsam_getsampwnam (my_methods, user, name);
670 }
671
672 static BOOL tdbsam_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid)
673 {
674 uint32 rid;
675 if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid))
676 return False;
677 return tdbsam_getsampwrid(my_methods, user, rid);
678 }
679
680 /***************************************************************************
681 Delete a SAM_ACCOUNT
682 ****************************************************************************/
683
684 static BOOL tdbsam_delete_sam_account(struct pdb_methods *my_methods, SAM_ACCOUNT *sam_pass)
685 {
686 struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
687 TDB_CONTEXT *pwd_tdb;
688 TDB_DATA key;
689 fstring keystr;
690 uint32 rid;
691 fstring name;
692
693 unix_strlower(pdb_get_username(sam_pass), -1, name, sizeof(name));
694
695 /* open the TDB */
696 if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR, 0600))) {
697 DEBUG(0, ("Unable to open TDB passwd!"));
698 return False;
699 }
700
701 /* set the search key */
702 slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
703 key.dptr = keystr;
704 key.dsize = strlen (keystr) + 1;
705
706 rid = pdb_get_user_rid(sam_pass);
707
708 /* it's outaa here! 8^) */
709 if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
710 DEBUG(5, ("Error deleting entry from tdb passwd database!\n"));
711 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
712 tdb_close(pwd_tdb);
713 return False;
714 }
715
716 /* delete also the RID key */
717
718 /* set the search key */
719 slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
720 key.dptr = keystr;
721 key.dsize = strlen (keystr) + 1;
722
723 /* it's outaa here! 8^) */
724 if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
725 DEBUG(5, ("Error deleting entry from tdb rid database!\n"));
726 DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
727 tdb_close(pwd_tdb);
728 return False;
729 }
730
731 tdb_close(pwd_tdb);
732
733 return True;
734 }
735
736 /***************************************************************************
737 Update the TDB SAM
738 ****************************************************************************/
739
740 static BOOL tdb_update_sam(struct pdb_methods *my_methods, SAM_ACCOUNT* newpwd, int flag)
741 {
742 struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
743 TDB_CONTEXT *pwd_tdb = NULL;
744 TDB_DATA key, data;
745 uint8 *buf = NULL;
746 fstring keystr;
747 fstring name;
748 BOOL ret = True;
749 uint32 user_rid;
750 BOOL tdb_ret;
751
752 /* invalidate the existing TDB iterator if it is open */
753 if (tdb_state->passwd_tdb) {
754 tdb_close(tdb_state->passwd_tdb);
755 tdb_state->passwd_tdb = NULL;
756 }
757
758 /* open the account TDB passwd*/
759 pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
760 if (!pwd_tdb)
761 {
762 DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
763 return False;
764 }
765
766 /* if flag == TDB_INSERT then make up a new RID else throw an error. */
767 if (!(user_rid = pdb_get_user_rid(newpwd))) {
768 if (flag & TDB_INSERT) {
769 if (IS_SAM_UNIX_USER(newpwd)) {
770 if (tdb_state->algorithmic_rids) {
771 user_rid = fallback_pdb_uid_to_user_rid(pdb_get_uid(newpwd));
772 } else {
773 user_rid = BASE_RID;
774 tdb_ret = tdb_change_uint32_atomic(pwd_tdb, "RID_COUNTER", &user_rid, RID_MULTIPLIER);
775 if (!tdb_ret) {
776 ret = False;
777 goto done;
778 }
779 }
780 pdb_set_user_sid_from_rid(newpwd, user_rid);
781 } else {
782 user_rid = tdb_state->low_nua_rid;
783 tdb_ret = tdb_change_uint32_atomic(pwd_tdb, "NUA_RID_COUNTER", &user_rid, RID_MULTIPLIER);
784 if (!tdb_ret) {
785 ret = False;
786 goto done;
787 }
788 if (user_rid > tdb_state->high_nua_rid) {
789 DEBUG(0, ("tdbsam: no NUA rids available, cannot add user %s!\n", pdb_get_username(newpwd)));
790 ret = False;
791 goto done;
792 }
793 pdb_set_user_sid_from_rid(newpwd, user_rid);
794 }
795 } else {
796 DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a RID\n",pdb_get_username(newpwd)));
797 ret = False;
798 goto done;
799 }
800 }
801
802 if (!pdb_get_group_rid(newpwd)) {
803 if (flag & TDB_INSERT) {
804 if (!tdb_state->permit_non_unix_accounts) {
805 DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
806 ret = False;
807 goto done;
808 } else {
809 /* This seems like a good default choice for non-unix users */
810 pdb_set_group_sid_from_rid(newpwd, DOMAIN_GROUP_RID_USERS);
811 }
812 } else {
813 DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
814 ret = False;
815 goto done;
816 }
817 }
818
819 /* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */
820 if ((data.dsize=init_buffer_from_sam (tdb_state, &buf, newpwd)) == -1) {
821 DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n"));
822 ret = False;
823 goto done;
824 }
825 data.dptr = buf;
826
827 unix_strlower(pdb_get_username(newpwd), -1, name, sizeof(name));
828
829 DEBUG(5, ("Storing %saccount %s with RID %d\n", flag == TDB_INSERT ? "(new) " : "", name, user_rid));
830
831 /* setup the USER index key */
832 slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
833 key.dptr = keystr;
834 key.dsize = strlen (keystr) + 1;
835
836 /* add the account */
837 if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
838 DEBUG(0, ("Unable to modify passwd TDB!"));
839 DEBUGADD(0, (" Error: %s", tdb_errorstr(pwd_tdb)));
840 DEBUGADD(0, (" occured while storing the main record (%s)\n", keystr));
841 ret = False;
842 goto done;
843 }
844
845 /* setup RID data */
846 data.dsize = sizeof(fstring);
847 data.dptr = name;
848
849 /* setup the RID index key */
850 slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, user_rid);
851 key.dptr = keystr;
852 key.dsize = strlen (keystr) + 1;
853
854 /* add the reference */
855 if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
856 DEBUG(0, ("Unable to modify TDB passwd !"));
857 DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
858 DEBUGADD(0, (" occured while storing the RID index (%s)\n", keystr));
859 ret = False;
860 goto done;
861 }
862
863 done:
864 /* cleanup */
865 tdb_close (pwd_tdb);
866 SAFE_FREE(buf);
867
868 return (ret);
869 }
870
871 /***************************************************************************
872 Modifies an existing SAM_ACCOUNT
873 ****************************************************************************/
874
875 static BOOL tdbsam_update_sam_account (struct pdb_methods *my_methods, SAM_ACCOUNT *newpwd)
876 {
877 return (tdb_update_sam(my_methods, newpwd, TDB_MODIFY));
878 }
879
880 /***************************************************************************
881 Adds an existing SAM_ACCOUNT
882 ****************************************************************************/
883
884 static BOOL tdbsam_add_sam_account (struct pdb_methods *my_methods, SAM_ACCOUNT *newpwd)
885 {
886 return (tdb_update_sam(my_methods, newpwd, TDB_INSERT));
887 }
888
889 static void free_private_data(void **vp)
890 {
891 struct tdbsam_privates **tdb_state = (struct tdbsam_privates **)vp;
892 close_tdb(*tdb_state);
893 *tdb_state = NULL;
894
895 /* No need to free any further, as it is talloc()ed */
896 }
897
898
899 NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
900 {
901 NTSTATUS nt_status;
902 struct tdbsam_privates *tdb_state;
903
904 #if 0 /* when made a module use this */
905 tdbsam_debug_level = debug_add_class("tdbsam");
906 if(tdbsam_debug_level == -1) {
907 tdbsam_debug_level = DBGC_ALL;
908 DEBUG(0, ("tdbsam: Couldn't register custom debugging class!\n"));
909 }
910 #endif
911
912 if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
913 return nt_status;
914 }
915
916 (*pdb_method)->name = "tdbsam";
917
918 (*pdb_method)->setsampwent = tdbsam_setsampwent;
919 (*pdb_method)->endsampwent = tdbsam_endsampwent;
920 (*pdb_method)->getsampwent = tdbsam_getsampwent;
921 (*pdb_method)->getsampwnam = tdbsam_getsampwnam;
922 (*pdb_method)->getsampwsid = tdbsam_getsampwsid;
923 (*pdb_method)->add_sam_account = tdbsam_add_sam_account;
924 (*pdb_method)->update_sam_account = tdbsam_update_sam_account;
925 (*pdb_method)->delete_sam_account = tdbsam_delete_sam_account;
926
927 tdb_state = talloc_zero(pdb_context->mem_ctx, sizeof(struct tdbsam_privates));
928
929 if (!tdb_state) {
930 DEBUG(0, ("talloc() failed for tdbsam private_data!\n"));
931 return NT_STATUS_NO_MEMORY;
932 }
933
934 if (location) {
935 tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, location);
936 } else {
937 pstring tdbfile;
938 get_private_directory(tdbfile);
939 pstrcat(tdbfile, "/");
940 pstrcat(tdbfile, PASSDB_FILE_NAME);
941 tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, tdbfile);
942 }
943
944 tdb_state->algorithmic_rids = True;
945
946 (*pdb_method)->private_data = tdb_state;
947
948 (*pdb_method)->free_private_data = free_private_data;
949
950 return NT_STATUS_OK;
951 }
952
953 NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
954 {
955 NTSTATUS nt_status;
956 struct tdbsam_privates *tdb_state;
957 uint32 low_nua_uid, high_nua_uid;
958
959 if (!NT_STATUS_IS_OK(nt_status = pdb_init_tdbsam(pdb_context, pdb_method, location))) {
960 return nt_status;
961 }
962
963 (*pdb_method)->name = "tdbsam_nua";
964
965 tdb_state = (*pdb_method)->private_data;
966
967 tdb_state->permit_non_unix_accounts = True;
968
969 if (!lp_non_unix_account_range(&low_nua_uid, &high_nua_uid)) {
970 DEBUG(0, ("cannot use tdbsam_nua without 'non unix account range' in smb.conf!\n"));
971 return NT_STATUS_UNSUCCESSFUL;
972 }
973
974 tdb_state->low_nua_rid=fallback_pdb_uid_to_user_rid(low_nua_uid);
975
976 tdb_state->high_nua_rid=fallback_pdb_uid_to_user_rid(high_nua_uid);
977
978 return NT_STATUS_OK;
979 }
980
981
982 #else
983
984 NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
985 {
986 DEBUG(0, ("tdbsam not compiled in!\n"));
987 return NT_STATUS_UNSUCCESSFUL;
988 }
989
990 NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
991 {
992 DEBUG(0, ("tdbsam_nua not compiled in!\n"));
993 return NT_STATUS_UNSUCCESSFUL;
994 }
995
996
997 #endif
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