summaryrefslogtreecommitdiff
path: root/source3/passdb/pdb_tdb.c
blob: 909a5d809f1060ef9d5742a46c449e6ac649ebe0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
/*
 * Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup
 * Copyright (C) Andrew Tridgell 1992-1998
 * Copyright (C) Simo Sorce 2000
 * Copyright (C) Gerald Carter 2000
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 675
 * Mass Ave, Cambridge, MA 02139, USA.
 */

#include "includes.h"

#ifdef WITH_TDBPWD

#define PDB_VERSION		"20010830"
#define PASSDB_FILE_NAME	"/passdb.tdb"
#define TDB_FORMAT_STRING	"ddddddBBBBBBBBBBBBddBBwdwdBdd"
#define USERPREFIX		"USER_"
#define RIDPREFIX		"RID_"

extern int 		DEBUGLEVEL;
extern pstring 		samlogon_user;
extern BOOL 		sam_logon_in_ssb;


struct tdb_enum_info
{
	TDB_CONTEXT 	*passwd_tdb;
	TDB_DATA 	key;
};

static struct tdb_enum_info 	global_tdb_ent;
/*static SAM_ACCOUNT 		global_sam_pass;*/

/**********************************************************************
 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
 *********************************************************************/
static BOOL init_sam_from_buffer (SAM_ACCOUNT *sampass, uint8 *buf, 
				  uint32 buflen)
{

	/* times are stored as 32bit integer
	   take care on system with 64bit wide time_t
	   --SSS */
	uint32	logon_time,
		logoff_time,
		kickoff_time,
		pass_last_set_time,
		pass_can_change_time,
		pass_must_change_time;
	char *username;
	char *domain;
	char *nt_username;
	char *dir_drive;
	char *unknown_str;
	char *munged_dial;
	char *fullname;
	char *homedir;
	char *logon_script;
	char *profile_path;
	char *acct_desc;
	char *workstations;
	uint32	username_len, domain_len, nt_username_len,
		dir_drive_len, unknown_str_len, munged_dial_len,
		fullname_len, homedir_len, logon_script_len,
		profile_path_len, acct_desc_len, workstations_len;
		
	uint32	/* uid, gid,*/ user_rid, group_rid, unknown_3, hours_len, unknown_5, unknown_6;
	uint16	acct_ctrl, logon_divs;
	uint8	*hours;
	static uint8	*lm_pw_ptr,
			*nt_pw_ptr;
	uint32		len = 0;
	uint32		lmpwlen, ntpwlen, hourslen;

									
	/* unpack the buffer into variables */
	len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING,
		&logon_time,
		&logoff_time,
		&kickoff_time,
		&pass_last_set_time,
		&pass_can_change_time,
		&pass_must_change_time,
		&username_len, &username,
		&domain_len, &domain,
		&nt_username_len, &nt_username,
		&fullname_len, &fullname,
		&homedir_len, &homedir,
		&dir_drive_len, &dir_drive,
		&logon_script_len, &logon_script,
		&profile_path_len, &profile_path,
		&acct_desc_len, &acct_desc,
		&workstations_len, &workstations,
		&unknown_str_len, &unknown_str,
		&munged_dial_len, &munged_dial,
		&user_rid,
		&group_rid,
		&lmpwlen, &lm_pw_ptr,
		&ntpwlen, &nt_pw_ptr,
		&acct_ctrl,
		&unknown_3,
		&logon_divs,
		&hours_len,
		&hourslen, &hours,
		&unknown_5,
		&unknown_6);
		
	if (len == -1) 
		return False;

	pdb_set_logon_time(sampass, logon_time);
	pdb_set_logoff_time(sampass, logoff_time);
	pdb_set_kickoff_time(sampass, kickoff_time);
	pdb_set_pass_can_change_time(sampass, pass_can_change_time);
	pdb_set_pass_must_change_time(sampass, pass_must_change_time);
	pdb_set_pass_last_set_time(sampass, pass_last_set_time);

	pdb_set_username     (sampass, username_len?username:NULL);
	pdb_set_domain       (sampass, domain_len?domain:NULL);
	pdb_set_nt_username  (sampass, nt_username_len?nt_username:NULL);
	pdb_set_fullname     (sampass, fullname_len?fullname:NULL);
	pdb_set_homedir      (sampass, homedir_len?homedir:NULL);
	pdb_set_dir_drive    (sampass, dir_drive_len?dir_drive:NULL);
	pdb_set_logon_script (sampass, logon_script_len?logon_script:NULL);
	pdb_set_profile_path (sampass, profile_path_len?profile_path:NULL);
	pdb_set_acct_desc    (sampass, acct_desc_len?acct_desc:NULL);
	pdb_set_workstations (sampass, workstations_len?workstations:NULL);
	pdb_set_munged_dial  (sampass, munged_dial_len?munged_dial:NULL);
	pdb_set_lanman_passwd(sampass, lmpwlen?lm_pw_ptr:NULL);
	pdb_set_nt_passwd    (sampass, ntpwlen?nt_pw_ptr:NULL);

	/*pdb_set_uid(sampass, uid);
	pdb_set_gid(sampass, gid);*/
	pdb_set_user_rid(sampass, user_rid);
	pdb_set_group_rid(sampass, group_rid);
	pdb_set_unknown_3(sampass, unknown_3);
	pdb_set_hours_len(sampass, hours_len);
	pdb_set_unknown_5(sampass, unknown_5);
	pdb_set_unknown_6(sampass, unknown_6);
	pdb_set_acct_ctrl(sampass, acct_ctrl);
	pdb_set_logons_divs(sampass, logon_divs);
	pdb_set_hours(sampass, hours);

	/* TODO: free TDB alloced memory !!!!! */
		
	return True;
}

/**********************************************************************
 Intialize a BYTE buffer from a SAM_ACCOUNT struct
 *********************************************************************/
static uint32 init_buffer_from_sam (uint8 **buf, SAM_ACCOUNT *sampass)
{
	size_t		len, buflen;

	/* times are stored as 32bit integer
	   take care on system with 64bit wide time_t
	   --SSS */
	uint32	logon_time,
		logoff_time,
		kickoff_time,
		pass_last_set_time,
		pass_can_change_time,
		pass_must_change_time;
	char *username;
	char *domain;
	char *nt_username;
	char *dir_drive;
	char *unknown_str;
	char *munged_dial;
	char *fullname;
	char *homedir;
	char *logon_script;
	char *profile_path;
	char *acct_desc;
	char *workstations;
	uint32	username_len, domain_len, nt_username_len,
		dir_drive_len, unknown_str_len, munged_dial_len,
		fullname_len, homedir_len, logon_script_len,
		profile_path_len, acct_desc_len, workstations_len;

	uint8		*lm_pw;
	uint8		*nt_pw;
	uint32	lm_pw_len = 16;
	uint32	nt_pw_len = 16;

	/* do we have a valid SAM_ACCOUNT pointer? */
	if (sampass == NULL)
		return -1;
		
	*buf = NULL;
	buflen = 0;

	logon_time = pdb_get_logon_time(sampass);
	logoff_time = pdb_get_logoff_time(sampass);
	kickoff_time = pdb_get_kickoff_time(sampass);
	pass_can_change_time = pdb_get_pass_can_change_time(sampass);
	pass_must_change_time = pdb_get_pass_must_change_time(sampass);
	pass_last_set_time = pdb_get_pass_last_set_time(sampass);


	username = pdb_get_username(sampass);
	if (username) username_len = strlen(username) +1;
	else username_len = 0;
	domain = pdb_get_domain(sampass);
	if (domain) domain_len = strlen(domain) +1;
	else domain_len = 0;
	nt_username = pdb_get_nt_username(sampass);
	if (nt_username) nt_username_len = strlen(nt_username) +1;
	else nt_username_len = 0;
	dir_drive = pdb_get_dirdrive(sampass);
	if (dir_drive) dir_drive_len = strlen(dir_drive) +1;
	else dir_drive_len = 0;
	unknown_str = NULL;
	unknown_str_len = 0;
	munged_dial = pdb_get_munged_dial(sampass);
	if (munged_dial) munged_dial_len = strlen(munged_dial) +1;
	else munged_dial_len = 0;
		
	fullname = pdb_get_fullname(sampass);
	if (fullname) fullname_len = strlen(fullname) +1;
	else fullname_len = 0;
	homedir = pdb_get_homedir(sampass);
	if (homedir) homedir_len = strlen(homedir) +1;
	else homedir_len = 0;
	logon_script = pdb_get_logon_script(sampass);
	if (logon_script) logon_script_len = strlen(logon_script) +1;
	else logon_script_len = 0;
	profile_path = pdb_get_profile_path(sampass);
	if (profile_path) profile_path_len = strlen(profile_path) +1;
	else profile_path_len = 0;
	acct_desc = pdb_get_acct_desc(sampass);
	if (acct_desc) acct_desc_len = strlen(acct_desc) +1;
	else acct_desc_len = 0;
	workstations = pdb_get_workstations(sampass);
	if (workstations) workstations_len = strlen(workstations) +1;
	else workstations_len = 0;
	
	lm_pw = pdb_get_lanman_passwd(sampass);
	if (!lm_pw) lm_pw_len = 0;
	
	nt_pw = pdb_get_nt_passwd(sampass);
	if (!nt_pw) nt_pw_len = 0;
		
	/* one time to get the size needed */
	len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING,
		logon_time,
		logoff_time,
		kickoff_time,
		pass_last_set_time,
		pass_can_change_time,
		pass_must_change_time,
		username_len, username,
		domain_len, domain,
		nt_username_len, nt_username,
		fullname_len, fullname,
		homedir_len, homedir,
		dir_drive_len, dir_drive,
		logon_script_len, logon_script,
		profile_path_len, profile_path,
		acct_desc_len, acct_desc,
		workstations_len, workstations,
		unknown_str_len, unknown_str,
		munged_dial_len, munged_dial,
		pdb_get_user_rid(sampass),
		pdb_get_group_rid(sampass),
		lm_pw_len, lm_pw,
		nt_pw_len, nt_pw,
		pdb_get_acct_ctrl(sampass),
		pdb_get_unknown3(sampass),
		pdb_get_logon_divs(sampass),
		pdb_get_hours_len(sampass),
		MAX_HOURS_LEN, pdb_get_hours(sampass),
		pdb_get_unknown5(sampass),
		pdb_get_unknown6(sampass));


	/* malloc the space needed */
	if ( (*buf=(uint8*)malloc(len)) == NULL)
	{
		DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
		return (-1);
	}
	
	/* now for the real call to tdb_pack() */
	buflen = tdb_pack(*buf, len,  TDB_FORMAT_STRING,
		logon_time,
		logoff_time,
		kickoff_time,
		pass_last_set_time,
		pass_can_change_time,
		pass_must_change_time,
		username_len, username,
		domain_len, domain,
		nt_username_len, nt_username,
		fullname_len, fullname,
		homedir_len, homedir,
		dir_drive_len, dir_drive,
		logon_script_len, logon_script,
		profile_path_len, profile_path,
		acct_desc_len, acct_desc,
		workstations_len, workstations,
		unknown_str_len, unknown_str,
		munged_dial_len, munged_dial,
		pdb_get_user_rid(sampass),
		pdb_get_group_rid(sampass),
		lm_pw_len, lm_pw,
		nt_pw_len, nt_pw,
		pdb_get_acct_ctrl(sampass),
		pdb_get_unknown3(sampass),
		pdb_get_logon_divs(sampass),
		pdb_get_hours_len(sampass),
		MAX_HOURS_LEN, pdb_get_hours(sampass),
		pdb_get_unknown5(sampass),
		pdb_get_unknown6(sampass));
	
	
	/* check to make sure we got it correct */
	if (buflen != len)
	{
		/* error */
		free (*buf);
		return (-1);
	}

	return (buflen);
}

/***************************************************************
 Open the TDB passwd database for SAM account enumeration.
****************************************************************/
BOOL pdb_setsampwent(BOOL update)
{
	pstring		tdbfile;
	
	pstrcpy (tdbfile, lp_private_dir());
	pstrcat (tdbfile, PASSDB_FILE_NAME);
	
	/* Open tdb passwd */
	if (!(global_tdb_ent.passwd_tdb = tdb_open_log(tdbfile, 0, USE_TDB_MMAP_FLAG, update ? O_RDWR : O_RDONLY, 0600)))
	{
		DEBUG(0, ("Unable to open TDB passwd, trying create new!\n"));
		if (!(global_tdb_ent.passwd_tdb = tdb_open_log(tdbfile, 0, USE_TDB_MMAP_FLAG, O_RDWR | O_CREAT | O_EXCL, 0600)))
		{
			DEBUG(0, ("Unable to create TDB passwd (passdb.tdb) !!!"));
			return False;
		}
	}
	
	global_tdb_ent.key = tdb_firstkey(global_tdb_ent.passwd_tdb);

	return True;
}

/***************************************************************
 End enumeration of the TDB passwd list.
****************************************************************/
void pdb_endsampwent(void)
{
	if (global_tdb_ent.passwd_tdb)
	{
		tdb_close(global_tdb_ent.passwd_tdb);
		global_tdb_ent.passwd_tdb = NULL;
	}
	
	DEBUG(7, ("endtdbpwent: closed password file.\n"));
}


/*****************************************************************
 Get one SAM_ACCOUNT from the TDB (next in line)
*****************************************************************/
BOOL pdb_getsampwent(SAM_ACCOUNT *user)
{
	TDB_DATA 	data;
	struct passwd	*pw;
	uid_t		uid;
	gid_t		gid;
	char *prefix = USERPREFIX;
	int  prefixlen = strlen (prefix);

	if (user==NULL) {
		DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n"));
		return False;
	}

	/* skip all RID entries */
	while ((global_tdb_ent.key.dsize != 0) && (strncmp (global_tdb_ent.key.dptr, prefix, prefixlen)))
		/* increment to next in line */
		global_tdb_ent.key = tdb_nextkey (global_tdb_ent.passwd_tdb, global_tdb_ent.key);

	/* do we have an valid interation pointer? */
	if(global_tdb_ent.passwd_tdb == NULL) 
	{
		DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n"));
		return False;
	}

	data = tdb_fetch (global_tdb_ent.passwd_tdb, global_tdb_ent.key);
	if (!data.dptr)
	{
		DEBUG(5,("pdb_getsampwent: database entry not found.\n"));
		return False;
	}
  
  	/* unpack the buffer */
	if (!init_sam_from_buffer (user, data.dptr, data.dsize))
	{
		DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
		return False;
	}
	
	/* validate the account and fill in UNIX uid and gid.  sys_getpwnam()
	   is used instaed of Get_Pwnam() as we do not need to try case
	   permutations */
	if ((pw=sys_getpwnam(pdb_get_username(user))) == NULL)
	{
		DEBUG(0,("pdb_getsampwent: getpwnam(%s) return NULL.  User does not exist!\n", 
		          pdb_get_username(user)));
		return False;
	}

	uid = pw->pw_uid;
	gid = pw->pw_gid;
	pdb_set_uid (user, uid);
	pdb_set_gid (user, gid);

	/* 21 days from present */
	pdb_set_pass_must_change_time(user, time(NULL)+1814400);	

	standard_sub_advanced(-1, pdb_get_username(user), "", gid, pdb_get_logon_script(user));
	standard_sub_advanced(-1, pdb_get_username(user), "", gid, pdb_get_profile_path(user));
	standard_sub_advanced(-1, pdb_get_username(user), "", gid, pdb_get_homedir(user));

	/* increment to next in line */
	global_tdb_ent.key = tdb_nextkey (global_tdb_ent.passwd_tdb, global_tdb_ent.key);

	return True;
}

/******************************************************************
 Lookup a name in the SAM TDB
******************************************************************/
BOOL pdb_getsampwnam (SAM_ACCOUNT *user, char *sname)
{
	TDB_CONTEXT 	*pwd_tdb;
	TDB_DATA 	data, key;
	fstring 	keystr;
	struct passwd	*pw;
	pstring		tdbfile;
	fstring		name;
	uid_t		uid;
	gid_t		gid;


	if (user==NULL) {
		DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
		return False;
	}

	fstrcpy (name, sname);
	strlower (name);
	pstrcpy (tdbfile, lp_private_dir());
	pstrcat (tdbfile, PASSDB_FILE_NAME);
	
	/* set search key */
	slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
	key.dptr = keystr;
	key.dsize = strlen (keystr) + 1;

	/* open the accounts TDB */
	if (!(pwd_tdb = tdb_open_log(tdbfile, 0, USE_TDB_MMAP_FLAG, O_RDONLY, 0600)))
	{
		DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd!\n"));
		return False;
	}

	/* get the record */
	data = tdb_fetch (pwd_tdb, key);
	if (!data.dptr)
	{
		DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n"));
		DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
		tdb_close (pwd_tdb);
		return False;
	}
  
  	/* unpack the buffer */
	if (!init_sam_from_buffer (user, data.dptr, data.dsize))
	{
		DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
		return False;
	}
	
	/* validate the account and fill in UNIX uid and gid.  sys_getpwnam()
	   is used instaed of Get_Pwnam() as we do not need to try case
	   permutations */
	if ((pw=sys_getpwnam(pdb_get_username(user))) == NULL)
	{
		DEBUG(0,("pdb_getsampwent: getpwnam(%s) return NULL.  User does not exist!\n", 
		          pdb_get_username(user)));
		return False;
	}
	
	uid = pw->pw_uid;
	gid = pw->pw_gid;
	pdb_set_uid (user, uid);
	pdb_set_gid (user, gid);
	
	/* 21 days from present */
	pdb_set_pass_must_change_time(user, time(NULL)+1814400);	
	
	standard_sub_advanced(-1, pdb_get_username(user), "", gid, pdb_get_logon_script(user));
	standard_sub_advanced(-1, pdb_get_username(user), "", gid, pdb_get_profile_path(user));
	standard_sub_advanced(-1, pdb_get_username(user), "", gid, pdb_get_homedir(user));

	/* cleanup */
	tdb_close (pwd_tdb);

	return True;
}

/***************************************************************************
 Search by uid
 **************************************************************************/
BOOL pdb_getsampwuid (SAM_ACCOUNT* user, uid_t uid)
{
	struct passwd	*pw;
	fstring		name;

	if (user==NULL) {
		DEBUG(0,("pdb_getsampwuid: SAM_ACCOUNT is NULL.\n"));
		return False;
	}

	pw = sys_getpwuid(uid);
	if (pw == NULL)
	{
		DEBUG(0,("pdb_getsampwuid: getpwuid(%d) return NULL. User does not exist!\n", uid));
		return False;
	}
	fstrcpy (name, pw->pw_name);

	return pdb_getsampwnam (user, name);

}

/***************************************************************************
 Search by rid
 **************************************************************************/
BOOL pdb_getsampwrid (SAM_ACCOUNT *user, uint32 rid)
{
	TDB_CONTEXT 		*pwd_tdb;
	TDB_DATA 		data, key;
	fstring 		keystr;
	pstring			tdbfile;
	fstring			name;
	
	if (user==NULL) {
		DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n"));
		return False;
	}

	pstrcpy (tdbfile, lp_private_dir());
	pstrcat (tdbfile, PASSDB_FILE_NAME);
	
	/* set search key */
	slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
	key.dptr = keystr;
	key.dsize = strlen (keystr) + 1;

	/* open the accounts TDB */
	if (!(pwd_tdb = tdb_open_log(tdbfile, 0, USE_TDB_MMAP_FLAG, O_RDONLY, 0600)))
	{
		DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n"));
		return False;
	}

	/* get the record */
	data = tdb_fetch (pwd_tdb, key);
	if (!data.dptr)
	{
		DEBUG(5,("pdb_getsampwrid (TDB): error fetching database.\n"));
		DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
		tdb_close (pwd_tdb);
		return False;
	}

	fstrcpy (name, data.dptr);
	
	tdb_close (pwd_tdb);
	
	return pdb_getsampwnam (user, name);
}


/***************************************************************************
 Delete a SAM_ACCOUNT
****************************************************************************/
BOOL pdb_delete_sam_account(char *sname)
{
	struct passwd  *pwd = NULL;
	SAM_ACCOUNT	*sam_pass = NULL;
	TDB_CONTEXT 	*pwd_tdb;
	TDB_DATA 	key, data;
	fstring 	keystr;
	pstring		tdbfile;
	uint32		rid;
	fstring		name;
	
	fstrcpy (name, sname);
	strlower (name);
	
	pstrcpy (tdbfile, lp_private_dir());
	pstrcat (tdbfile, PASSDB_FILE_NAME);

	/* open the TDB */
	if (!(pwd_tdb = tdb_open_log(tdbfile, 0, USE_TDB_MMAP_FLAG, O_RDWR, 0600)))
	{
		DEBUG(0, ("Unable to open TDB passwd!"));
		return False;
	}
  
  	/* set the search key */
	slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
	key.dptr = keystr;
	key.dsize = strlen (keystr) + 1;
	
	/* get the record */
	data = tdb_fetch (pwd_tdb, key);
	if (!data.dptr)
	{
		DEBUG(5,("pdb_delete_sam_account (TDB): error fetching database.\n"));
		DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
		tdb_close (pwd_tdb);
		return False;
	}
  
  	/* unpack the buffer */
	if (!pdb_init_sam (&sam_pass))
	{
		tdb_close (pwd_tdb);
		return False;
	}
	
	if (!init_sam_from_buffer (sam_pass, data.dptr, data.dsize))
	{
		DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
		tdb_close (pwd_tdb);
		return False;
	}

	pwd = sys_getpwnam(sam_pass->username);
	
	pdb_free_sam (sam_pass);
	
	rid = pdb_uid_to_user_rid (pwd->pw_uid);

	/* it's outaa here!  8^) */
	if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS)
	{
		DEBUG(5, ("Error deleting entry from tdb passwd database!\n"));
		DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
		tdb_close(pwd_tdb); 
		return False;
	}	

	/* delete also the RID key */

  	/* set the search key */
	slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
	key.dptr = keystr;
	key.dsize = strlen (keystr) + 1;

	/* it's outaa here!  8^) */
	if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS)
	{
		DEBUG(5, ("Error deleting entry from tdb rid database!\n"));
		DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
		tdb_close(pwd_tdb); 
		return False;
	}
	
	tdb_close(pwd_tdb);
	
	return True;
}

/***************************************************************************
 Update the TDB SAM
****************************************************************************/
static BOOL tdb_update_sam(SAM_ACCOUNT* newpwd, BOOL override, int flag)
{
	TDB_CONTEXT 	*pwd_tdb;
	TDB_DATA 	key, data;
	uint8		*buf = NULL;
	fstring 	keystr;
	pstring		tdbfile;
	fstring		name;
	int		newtdb = FALSE;
	
	pstrcpy (tdbfile, lp_private_dir());
	pstrcat (tdbfile, PASSDB_FILE_NAME);
	
	if ( (!newpwd->uid) || (!newpwd->gid) )
		DEBUG (0,("tdb_update_sam: Storing a SAM_ACCOUNT for [%s] with uid %d and gid %d!\n",
			newpwd->username, newpwd->uid, newpwd->gid));
				
	/* if we don't have a RID, then generate one */
	if (!newpwd->user_rid)
		pdb_set_user_rid (newpwd, pdb_uid_to_user_rid (newpwd->uid));
	if (!newpwd->group_rid)
		pdb_set_group_rid (newpwd, pdb_gid_to_group_rid (newpwd->gid));

	    
	/* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */
	if ((data.dsize=init_buffer_from_sam (&buf, newpwd)) == -1)
	{
		DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n"));
		return False;
	}
	data.dptr = buf;

	fstrcpy (name, pdb_get_username(newpwd));
	strlower (name);
	
  	/* setup the USER index key */
	slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
	key.dptr = keystr;
	key.dsize = strlen (keystr) + 1;

	/* invalidate the existing TDB iterator if it is open */
	if (global_tdb_ent.passwd_tdb)
	{
		tdb_close(global_tdb_ent.passwd_tdb);
		global_tdb_ent.passwd_tdb = NULL;
	}

 	/* open the account TDB passwd*/
  	if (!(pwd_tdb = tdb_open_log(tdbfile, 0, USE_TDB_MMAP_FLAG, O_RDWR, 0600)))
	{
     		DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd!\n"));
		if (flag == TDB_INSERT)
		{
			DEBUG(0, ("Unable to open TDB passwd, trying create new!\n"));
			if (!(pwd_tdb = tdb_open_log(tdbfile, 0, USE_TDB_MMAP_FLAG, O_RDWR | O_CREAT | O_EXCL, 0600)))
			{
				DEBUG(0, ("Unable to create TDB passwd (passdb.tdb) !!!\n"));
				return False;
			}
			newtdb = True;
		}
	}

	/* add the account */
	if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS)
	{
		DEBUG(0, ("Unable to modify passwd TDB!"));
		DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
		tdb_close (pwd_tdb);
		return False;
	}
	
	/* setup RID data */
	data.dsize = sizeof(fstring);
	data.dptr = name;

	/* setup the RID index key */
	slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, pdb_get_user_rid(newpwd));
	key.dptr = keystr;
	key.dsize = strlen (keystr) + 1;
	
	/* add the reference */
	if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS)
	{
		DEBUG(0, ("Unable to modify TDB passwd !"));
		DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
		tdb_close (pwd_tdb);
		return False;
	}
	
	/* cleanup */
	tdb_close (pwd_tdb);
	
	return (True);
}

/***************************************************************************
 Modifies an existing SAM_ACCOUNT
****************************************************************************/
BOOL pdb_update_sam_account (SAM_ACCOUNT *newpwd, BOOL override)
{
	return (tdb_update_sam(newpwd, override, TDB_MODIFY));
}

/***************************************************************************
 Adds an existing SAM_ACCOUNT
****************************************************************************/
BOOL pdb_add_sam_account (SAM_ACCOUNT *newpwd)
{
	return (tdb_update_sam(newpwd, True, TDB_INSERT));
}


#else
	/* Do *NOT* make this function static. It breaks the compile on gcc. JRA */
	void samtdb_dummy_function(void) { } /* stop some compilers complaining */
#endif /* WITH_TDBPWD */