s3: Hide some uses of pdb_get_init_flags (which I would love to remove...)
[ira/wip.git] / source3 / passdb / pdb_get_set.c
1 /* 
2    Unix SMB/CIFS implementation.
3    struct samu access routines
4    Copyright (C) Jeremy Allison                 1996-2001
5    Copyright (C) Luke Kenneth Casson Leighton   1996-1998
6    Copyright (C) Gerald (Jerry) Carter          2000-2006
7    Copyright (C) Andrew Bartlett                2001-2002
8    Copyright (C) Stefan (metze) Metzmacher      2002
9
10    This program is free software; you can redistribute it and/or modify
11    it under the terms of the GNU General Public License as published by
12    the Free Software Foundation; either version 3 of the License, or
13    (at your option) any later version.
14
15    This program is distributed in the hope that it will be useful,
16    but WITHOUT ANY WARRANTY; without even the implied warranty of
17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18    GNU General Public License for more details.
19
20    You should have received a copy of the GNU General Public License
21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
22 */
23
24 #include "includes.h"
25 #include "../libcli/auth/libcli_auth.h"
26
27 #undef DBGC_CLASS
28 #define DBGC_CLASS DBGC_PASSDB
29
30 /**
31  * @todo Redefine this to NULL, but this changes the API because
32  *       much of samba assumes that the pdb_get...() funtions 
33  *       return strings.  (ie not null-pointers).
34  *       See also pdb_fill_default_sam().
35  */
36
37 #define PDB_NOT_QUITE_NULL ""
38
39 /*********************************************************************
40  Collection of get...() functions for struct samu.
41  ********************************************************************/
42
43 uint32 pdb_get_acct_ctrl(const struct samu *sampass)
44 {
45         return sampass->acct_ctrl;
46 }
47
48 time_t pdb_get_logon_time(const struct samu *sampass)
49 {
50         return sampass->logon_time;
51 }
52
53 time_t pdb_get_logoff_time(const struct samu *sampass)
54 {
55         return sampass->logoff_time;
56 }
57
58 time_t pdb_get_kickoff_time(const struct samu *sampass)
59 {
60         return sampass->kickoff_time;
61 }
62
63 time_t pdb_get_bad_password_time(const struct samu *sampass)
64 {
65         return sampass->bad_password_time;
66 }
67
68 time_t pdb_get_pass_last_set_time(const struct samu *sampass)
69 {
70         return sampass->pass_last_set_time;
71 }
72
73 time_t pdb_get_pass_can_change_time(const struct samu *sampass)
74 {
75         uint32 allow;
76
77         /* if the last set time is zero, it means the user cannot 
78            change their password, and this time must be zero.   jmcd 
79         */
80         if (sampass->pass_last_set_time == 0)
81                 return (time_t) 0;
82
83         /* if the time is max, and the field has been changed,
84            we're trying to update this real value from the sampass
85            to indicate that the user cannot change their password.  jmcd
86         */
87         if (sampass->pass_can_change_time == get_time_t_max() &&
88             IS_SAM_CHANGED(sampass, PDB_CANCHANGETIME))
89                 return sampass->pass_can_change_time;
90
91         if (!pdb_get_account_policy(PDB_POLICY_MIN_PASSWORD_AGE, &allow))
92                 allow = 0;
93
94         /* in normal cases, just calculate it from policy */
95         return sampass->pass_last_set_time + allow;
96 }
97
98 /* we need this for loading from the backend, so that we don't overwrite
99    non-changed max times, otherwise the pass_can_change checking won't work */
100 time_t pdb_get_pass_can_change_time_noncalc(const struct samu *sampass)
101 {
102         return sampass->pass_can_change_time;
103 }
104
105 time_t pdb_get_pass_must_change_time(const struct samu *sampass)
106 {
107         uint32 expire;
108
109         if (sampass->pass_last_set_time == 0)
110                 return (time_t) 0;
111
112         if (sampass->acct_ctrl & ACB_PWNOEXP)
113                 return get_time_t_max();
114
115         if (!pdb_get_account_policy(PDB_POLICY_MAX_PASSWORD_AGE, &expire)
116             || expire == (uint32)-1 || expire == 0) 
117                 return get_time_t_max();
118
119         return sampass->pass_last_set_time + expire;
120 }
121
122 bool pdb_get_pass_can_change(const struct samu *sampass)
123 {
124         if (sampass->pass_can_change_time == get_time_t_max() &&
125             sampass->pass_last_set_time != 0)
126                 return False;
127         return True;
128 }
129
130 uint16 pdb_get_logon_divs(const struct samu *sampass)
131 {
132         return sampass->logon_divs;
133 }
134
135 uint32 pdb_get_hours_len(const struct samu *sampass)
136 {
137         return sampass->hours_len;
138 }
139
140 const uint8 *pdb_get_hours(const struct samu *sampass)
141 {
142         return (sampass->hours);
143 }
144
145 const uint8 *pdb_get_nt_passwd(const struct samu *sampass)
146 {
147         SMB_ASSERT((!sampass->nt_pw.data) 
148                    || sampass->nt_pw.length == NT_HASH_LEN);
149         return (uint8 *)sampass->nt_pw.data;
150 }
151
152 const uint8 *pdb_get_lanman_passwd(const struct samu *sampass)
153 {
154         SMB_ASSERT((!sampass->lm_pw.data) 
155                    || sampass->lm_pw.length == LM_HASH_LEN);
156         return (uint8 *)sampass->lm_pw.data;
157 }
158
159 const uint8 *pdb_get_pw_history(const struct samu *sampass, uint32 *current_hist_len)
160 {
161         SMB_ASSERT((!sampass->nt_pw_his.data) 
162            || ((sampass->nt_pw_his.length % PW_HISTORY_ENTRY_LEN) == 0));
163         *current_hist_len = sampass->nt_pw_his.length / PW_HISTORY_ENTRY_LEN;
164         return (uint8 *)sampass->nt_pw_his.data;
165 }
166
167 /* Return the plaintext password if known.  Most of the time
168    it isn't, so don't assume anything magic about this function.
169
170    Used to pass the plaintext to passdb backends that might 
171    want to store more than just the NTLM hashes.
172 */
173 const char *pdb_get_plaintext_passwd(const struct samu *sampass)
174 {
175         return sampass->plaintext_pw;
176 }
177
178 const DOM_SID *pdb_get_user_sid(const struct samu *sampass)
179 {
180         return &sampass->user_sid;
181 }
182
183 const DOM_SID *pdb_get_group_sid(struct samu *sampass)
184 {
185         DOM_SID *gsid;
186         struct passwd *pwd;
187
188         /* Return the cached group SID if we have that */
189         if ( sampass->group_sid ) {
190                 return sampass->group_sid;
191         }
192
193         /* generate the group SID from the user's primary Unix group */
194
195         if ( !(gsid  = TALLOC_P( sampass, DOM_SID )) ) {
196                 return NULL;
197         }
198
199         /* No algorithmic mapping, meaning that we have to figure out the
200            primary group SID according to group mapping and the user SID must
201            be a newly allocated one.  We rely on the user's Unix primary gid.
202            We have no choice but to fail if we can't find it. */
203
204         if ( sampass->unix_pw ) {
205                 pwd = sampass->unix_pw;
206         } else {
207                 pwd = Get_Pwnam_alloc( sampass, pdb_get_username(sampass) );
208         }
209
210         if ( !pwd ) {
211                 DEBUG(0,("pdb_get_group_sid: Failed to find Unix account for %s\n", pdb_get_username(sampass) ));
212                 return NULL;
213         }
214
215         if ( pdb_gid_to_sid(pwd->pw_gid, gsid) ) {
216                 enum lsa_SidType type = SID_NAME_UNKNOWN;
217                 TALLOC_CTX *mem_ctx = talloc_init("pdb_get_group_sid");
218                 bool lookup_ret;
219
220                 if (!mem_ctx) {
221                         return NULL;
222                 }
223
224                 /* Now check that it's actually a domain group and not something else */
225
226                 lookup_ret = lookup_sid(mem_ctx, gsid, NULL, NULL, &type);
227
228                 TALLOC_FREE( mem_ctx );
229
230                 if ( lookup_ret && (type == SID_NAME_DOM_GRP) ) {
231                         sampass->group_sid = gsid;
232                         return sampass->group_sid;
233                 }
234
235                 DEBUG(3, ("Primary group for user %s is a %s and not a domain group\n", 
236                         pwd->pw_name, sid_type_lookup(type)));
237         }
238
239         /* Just set it to the 'Domain Users' RID of 513 which will
240            always resolve to a name */
241
242         sid_compose(gsid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS);
243
244         sampass->group_sid = gsid;
245
246         return sampass->group_sid;
247 }       
248
249 /**
250  * Get flags showing what is initalised in the struct samu
251  * @param sampass the struct samu in question
252  * @return the flags indicating the members initialised in the struct.
253  **/
254
255 enum pdb_value_state pdb_get_init_flags(const struct samu *sampass, enum pdb_elements element)
256 {
257         enum pdb_value_state ret = PDB_DEFAULT;
258
259         if (!sampass->change_flags || !sampass->set_flags)
260                 return ret;
261
262         if (bitmap_query(sampass->set_flags, element)) {
263                 DEBUG(11, ("element %d: SET\n", element)); 
264                 ret = PDB_SET;
265         }
266
267         if (bitmap_query(sampass->change_flags, element)) {
268                 DEBUG(11, ("element %d: CHANGED\n", element)); 
269                 ret = PDB_CHANGED;
270         }
271
272         if (ret == PDB_DEFAULT) {
273                 DEBUG(11, ("element %d: DEFAULT\n", element)); 
274         }
275
276         return ret;
277 }
278
279 const char *pdb_get_username(const struct samu *sampass)
280 {
281         return sampass->username;
282 }
283
284 const char *pdb_get_domain(const struct samu *sampass)
285 {
286         return sampass->domain;
287 }
288
289 const char *pdb_get_nt_username(const struct samu *sampass)
290 {
291         return sampass->nt_username;
292 }
293
294 const char *pdb_get_fullname(const struct samu *sampass)
295 {
296         return sampass->full_name;
297 }
298
299 const char *pdb_get_homedir(const struct samu *sampass)
300 {
301         return sampass->home_dir;
302 }
303
304 const char *pdb_get_dir_drive(const struct samu *sampass)
305 {
306         return sampass->dir_drive;
307 }
308
309 const char *pdb_get_logon_script(const struct samu *sampass)
310 {
311         return sampass->logon_script;
312 }
313
314 const char *pdb_get_profile_path(const struct samu *sampass)
315 {
316         return sampass->profile_path;
317 }
318
319 const char *pdb_get_acct_desc(const struct samu *sampass)
320 {
321         return sampass->acct_desc;
322 }
323
324 const char *pdb_get_workstations(const struct samu *sampass)
325 {
326         return sampass->workstations;
327 }
328
329 const char *pdb_get_comment(const struct samu *sampass)
330 {
331         return sampass->comment;
332 }
333
334 const char *pdb_get_munged_dial(const struct samu *sampass)
335 {
336         return sampass->munged_dial;
337 }
338
339 uint16 pdb_get_bad_password_count(const struct samu *sampass)
340 {
341         return sampass->bad_password_count;
342 }
343
344 uint16 pdb_get_logon_count(const struct samu *sampass)
345 {
346         return sampass->logon_count;
347 }
348
349 uint32 pdb_get_unknown_6(const struct samu *sampass)
350 {
351         return sampass->unknown_6;
352 }
353
354 void *pdb_get_backend_private_data(const struct samu *sampass, const struct pdb_methods *my_methods)
355 {
356         if (my_methods == sampass->backend_private_methods) {
357                 return sampass->backend_private_data;
358         } else {
359                 return NULL;
360         }
361 }
362
363 /*********************************************************************
364  Collection of set...() functions for struct samu.
365  ********************************************************************/
366
367 bool pdb_set_acct_ctrl(struct samu *sampass, uint32 acct_ctrl, enum pdb_value_state flag)
368 {
369         sampass->acct_ctrl = acct_ctrl;
370         return pdb_set_init_flags(sampass, PDB_ACCTCTRL, flag);
371 }
372
373 bool pdb_set_logon_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
374 {
375         sampass->logon_time = mytime;
376         return pdb_set_init_flags(sampass, PDB_LOGONTIME, flag);
377 }
378
379 bool pdb_set_logoff_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
380 {
381         sampass->logoff_time = mytime;
382         return pdb_set_init_flags(sampass, PDB_LOGOFFTIME, flag);
383 }
384
385 bool pdb_set_kickoff_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
386 {
387         sampass->kickoff_time = mytime;
388         return pdb_set_init_flags(sampass, PDB_KICKOFFTIME, flag);
389 }
390
391 bool pdb_set_bad_password_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
392 {
393         sampass->bad_password_time = mytime;
394         return pdb_set_init_flags(sampass, PDB_BAD_PASSWORD_TIME, flag);
395 }
396
397 bool pdb_set_pass_can_change_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
398 {
399         sampass->pass_can_change_time = mytime;
400         return pdb_set_init_flags(sampass, PDB_CANCHANGETIME, flag);
401 }
402
403 bool pdb_set_pass_must_change_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
404 {
405         sampass->pass_must_change_time = mytime;
406         return pdb_set_init_flags(sampass, PDB_MUSTCHANGETIME, flag);
407 }
408
409 bool pdb_set_pass_last_set_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
410 {
411         sampass->pass_last_set_time = mytime;
412         return pdb_set_init_flags(sampass, PDB_PASSLASTSET, flag);
413 }
414
415 bool pdb_set_hours_len(struct samu *sampass, uint32 len, enum pdb_value_state flag)
416 {
417         sampass->hours_len = len;
418         return pdb_set_init_flags(sampass, PDB_HOURSLEN, flag);
419 }
420
421 bool pdb_set_logon_divs(struct samu *sampass, uint16 hours, enum pdb_value_state flag)
422 {
423         sampass->logon_divs = hours;
424         return pdb_set_init_flags(sampass, PDB_LOGONDIVS, flag);
425 }
426
427 /**
428  * Set flags showing what is initalised in the struct samu
429  * @param sampass the struct samu in question
430  * @param flag The *new* flag to be set.  Old flags preserved
431  *             this flag is only added.  
432  **/
433
434 bool pdb_set_init_flags(struct samu *sampass, enum pdb_elements element, enum pdb_value_state value_flag)
435 {
436         if (!sampass->set_flags) {
437                 if ((sampass->set_flags = 
438                         bitmap_talloc(sampass, 
439                                         PDB_COUNT))==NULL) {
440                         DEBUG(0,("bitmap_talloc failed\n"));
441                         return False;
442                 }
443         }
444         if (!sampass->change_flags) {
445                 if ((sampass->change_flags = 
446                         bitmap_talloc(sampass, 
447                                         PDB_COUNT))==NULL) {
448                         DEBUG(0,("bitmap_talloc failed\n"));
449                         return False;
450                 }
451         }
452
453         switch(value_flag) {
454                 case PDB_CHANGED:
455                         if (!bitmap_set(sampass->change_flags, element)) {
456                                 DEBUG(0,("Can't set flag: %d in change_flags.\n",element));
457                                 return False;
458                         }
459                         if (!bitmap_set(sampass->set_flags, element)) {
460                                 DEBUG(0,("Can't set flag: %d in set_flags.\n",element));
461                                 return False;
462                         }
463                         DEBUG(11, ("element %d -> now CHANGED\n", element)); 
464                         break;
465                 case PDB_SET:
466                         if (!bitmap_clear(sampass->change_flags, element)) {
467                                 DEBUG(0,("Can't set flag: %d in change_flags.\n",element));
468                                 return False;
469                         }
470                         if (!bitmap_set(sampass->set_flags, element)) {
471                                 DEBUG(0,("Can't set flag: %d in set_flags.\n",element));
472                                 return False;
473                         }
474                         DEBUG(11, ("element %d -> now SET\n", element)); 
475                         break;
476                 case PDB_DEFAULT:
477                 default:
478                         if (!bitmap_clear(sampass->change_flags, element)) {
479                                 DEBUG(0,("Can't set flag: %d in change_flags.\n",element));
480                                 return False;
481                         }
482                         if (!bitmap_clear(sampass->set_flags, element)) {
483                                 DEBUG(0,("Can't set flag: %d in set_flags.\n",element));
484                                 return False;
485                         }
486                         DEBUG(11, ("element %d -> now DEFAULT\n", element)); 
487                         break;
488         }
489
490         return True;
491 }
492
493 bool pdb_set_user_sid(struct samu *sampass, const DOM_SID *u_sid, enum pdb_value_state flag)
494 {
495         if (!u_sid)
496                 return False;
497
498         sid_copy(&sampass->user_sid, u_sid);
499
500         DEBUG(10, ("pdb_set_user_sid: setting user sid %s\n", 
501                     sid_string_dbg(&sampass->user_sid)));
502
503         return pdb_set_init_flags(sampass, PDB_USERSID, flag);
504 }
505
506 bool pdb_set_user_sid_from_string(struct samu *sampass, fstring u_sid, enum pdb_value_state flag)
507 {
508         DOM_SID new_sid;
509
510         if (!u_sid)
511                 return False;
512
513         DEBUG(10, ("pdb_set_user_sid_from_string: setting user sid %s\n",
514                    u_sid));
515
516         if (!string_to_sid(&new_sid, u_sid)) { 
517                 DEBUG(1, ("pdb_set_user_sid_from_string: %s isn't a valid SID!\n", u_sid));
518                 return False;
519         }
520
521         if (!pdb_set_user_sid(sampass, &new_sid, flag)) {
522                 DEBUG(1, ("pdb_set_user_sid_from_string: could not set sid %s on struct samu!\n", u_sid));
523                 return False;
524         }
525
526         return True;
527 }
528
529 /********************************************************************
530  We never fill this in from a passdb backend but rather set is 
531  based on the user's primary group membership.  However, the 
532  struct samu* is overloaded and reused in domain memship code 
533  as well and built from the netr_SamInfo3 or PAC so we
534  have to allow the explicitly setting of a group SID here.
535 ********************************************************************/
536
537 bool pdb_set_group_sid(struct samu *sampass, const DOM_SID *g_sid, enum pdb_value_state flag)
538 {
539         gid_t gid;
540
541         if (!g_sid)
542                 return False;
543
544         if ( !(sampass->group_sid = TALLOC_P( sampass, DOM_SID )) ) {
545                 return False;
546         }
547
548         /* if we cannot resolve the SID to gid, then just ignore it and 
549            store DOMAIN_USERS as the primary groupSID */
550
551         if ( sid_to_gid( g_sid, &gid ) ) {
552                 sid_copy(sampass->group_sid, g_sid);
553         } else {
554                 sid_compose(sampass->group_sid, get_global_sam_sid(),
555                             DOMAIN_GROUP_RID_USERS);
556         }
557
558         DEBUG(10, ("pdb_set_group_sid: setting group sid %s\n", 
559                    sid_string_dbg(sampass->group_sid)));
560
561         return pdb_set_init_flags(sampass, PDB_GROUPSID, flag);
562 }
563
564 /*********************************************************************
565  Set the user's UNIX name.
566  ********************************************************************/
567
568 bool pdb_set_username(struct samu *sampass, const char *username, enum pdb_value_state flag)
569 {
570         if (username) { 
571                 DEBUG(10, ("pdb_set_username: setting username %s, was %s\n", username,
572                         (sampass->username)?(sampass->username):"NULL"));
573
574                 sampass->username = talloc_strdup(sampass, username);
575
576                 if (!sampass->username) {
577                         DEBUG(0, ("pdb_set_username: talloc_strdup() failed!\n"));
578                         return False;
579                 }
580         } else {
581                 sampass->username = PDB_NOT_QUITE_NULL;
582         }
583
584         return pdb_set_init_flags(sampass, PDB_USERNAME, flag);
585 }
586
587 /*********************************************************************
588  Set the domain name.
589  ********************************************************************/
590
591 bool pdb_set_domain(struct samu *sampass, const char *domain, enum pdb_value_state flag)
592 {
593         if (domain) { 
594                 DEBUG(10, ("pdb_set_domain: setting domain %s, was %s\n", domain,
595                         (sampass->domain)?(sampass->domain):"NULL"));
596
597                 sampass->domain = talloc_strdup(sampass, domain);
598
599                 if (!sampass->domain) {
600                         DEBUG(0, ("pdb_set_domain: talloc_strdup() failed!\n"));
601                         return False;
602                 }
603         } else {
604                 sampass->domain = PDB_NOT_QUITE_NULL;
605         }
606
607         return pdb_set_init_flags(sampass, PDB_DOMAIN, flag);
608 }
609
610 /*********************************************************************
611  Set the user's NT name.
612  ********************************************************************/
613
614 bool pdb_set_nt_username(struct samu *sampass, const char *nt_username, enum pdb_value_state flag)
615 {
616         if (nt_username) { 
617                 DEBUG(10, ("pdb_set_nt_username: setting nt username %s, was %s\n", nt_username,
618                         (sampass->nt_username)?(sampass->nt_username):"NULL"));
619  
620                 sampass->nt_username = talloc_strdup(sampass, nt_username);
621
622                 if (!sampass->nt_username) {
623                         DEBUG(0, ("pdb_set_nt_username: talloc_strdup() failed!\n"));
624                         return False;
625                 }
626         } else {
627                 sampass->nt_username = PDB_NOT_QUITE_NULL;
628         }
629
630         return pdb_set_init_flags(sampass, PDB_NTUSERNAME, flag);
631 }
632
633 /*********************************************************************
634  Set the user's full name.
635  ********************************************************************/
636
637 bool pdb_set_fullname(struct samu *sampass, const char *full_name, enum pdb_value_state flag)
638 {
639         if (full_name) { 
640                 DEBUG(10, ("pdb_set_full_name: setting full name %s, was %s\n", full_name,
641                         (sampass->full_name)?(sampass->full_name):"NULL"));
642
643                 sampass->full_name = talloc_strdup(sampass, full_name);
644
645                 if (!sampass->full_name) {
646                         DEBUG(0, ("pdb_set_fullname: talloc_strdup() failed!\n"));
647                         return False;
648                 }
649         } else {
650                 sampass->full_name = PDB_NOT_QUITE_NULL;
651         }
652
653         return pdb_set_init_flags(sampass, PDB_FULLNAME, flag);
654 }
655
656 /*********************************************************************
657  Set the user's logon script.
658  ********************************************************************/
659
660 bool pdb_set_logon_script(struct samu *sampass, const char *logon_script, enum pdb_value_state flag)
661 {
662         if (logon_script) { 
663                 DEBUG(10, ("pdb_set_logon_script: setting logon script %s, was %s\n", logon_script,
664                         (sampass->logon_script)?(sampass->logon_script):"NULL"));
665
666                 sampass->logon_script = talloc_strdup(sampass, logon_script);
667
668                 if (!sampass->logon_script) {
669                         DEBUG(0, ("pdb_set_logon_script: talloc_strdup() failed!\n"));
670                         return False;
671                 }
672         } else {
673                 sampass->logon_script = PDB_NOT_QUITE_NULL;
674         }
675
676         return pdb_set_init_flags(sampass, PDB_LOGONSCRIPT, flag);
677 }
678
679 /*********************************************************************
680  Set the user's profile path.
681  ********************************************************************/
682
683 bool pdb_set_profile_path(struct samu *sampass, const char *profile_path, enum pdb_value_state flag)
684 {
685         if (profile_path) { 
686                 DEBUG(10, ("pdb_set_profile_path: setting profile path %s, was %s\n", profile_path,
687                         (sampass->profile_path)?(sampass->profile_path):"NULL"));
688
689                 sampass->profile_path = talloc_strdup(sampass, profile_path);
690
691                 if (!sampass->profile_path) {
692                         DEBUG(0, ("pdb_set_profile_path: talloc_strdup() failed!\n"));
693                         return False;
694                 }
695         } else {
696                 sampass->profile_path = PDB_NOT_QUITE_NULL;
697         }
698
699         return pdb_set_init_flags(sampass, PDB_PROFILE, flag);
700 }
701
702 /*********************************************************************
703  Set the user's directory drive.
704  ********************************************************************/
705
706 bool pdb_set_dir_drive(struct samu *sampass, const char *dir_drive, enum pdb_value_state flag)
707 {
708         if (dir_drive) { 
709                 DEBUG(10, ("pdb_set_dir_drive: setting dir drive %s, was %s\n", dir_drive,
710                         (sampass->dir_drive)?(sampass->dir_drive):"NULL"));
711
712                 sampass->dir_drive = talloc_strdup(sampass, dir_drive);
713
714                 if (!sampass->dir_drive) {
715                         DEBUG(0, ("pdb_set_dir_drive: talloc_strdup() failed!\n"));
716                         return False;
717                 }
718
719         } else {
720                 sampass->dir_drive = PDB_NOT_QUITE_NULL;
721         }
722
723         return pdb_set_init_flags(sampass, PDB_DRIVE, flag);
724 }
725
726 /*********************************************************************
727  Set the user's home directory.
728  ********************************************************************/
729
730 bool pdb_set_homedir(struct samu *sampass, const char *home_dir, enum pdb_value_state flag)
731 {
732         if (home_dir) { 
733                 DEBUG(10, ("pdb_set_homedir: setting home dir %s, was %s\n", home_dir,
734                         (sampass->home_dir)?(sampass->home_dir):"NULL"));
735
736                 sampass->home_dir = talloc_strdup(sampass, home_dir);
737
738                 if (!sampass->home_dir) {
739                         DEBUG(0, ("pdb_set_home_dir: talloc_strdup() failed!\n"));
740                         return False;
741                 }
742         } else {
743                 sampass->home_dir = PDB_NOT_QUITE_NULL;
744         }
745
746         return pdb_set_init_flags(sampass, PDB_SMBHOME, flag);
747 }
748
749 /*********************************************************************
750  Set the user's account description.
751  ********************************************************************/
752
753 bool pdb_set_acct_desc(struct samu *sampass, const char *acct_desc, enum pdb_value_state flag)
754 {
755         if (acct_desc) { 
756                 sampass->acct_desc = talloc_strdup(sampass, acct_desc);
757
758                 if (!sampass->acct_desc) {
759                         DEBUG(0, ("pdb_set_acct_desc: talloc_strdup() failed!\n"));
760                         return False;
761                 }
762         } else {
763                 sampass->acct_desc = PDB_NOT_QUITE_NULL;
764         }
765
766         return pdb_set_init_flags(sampass, PDB_ACCTDESC, flag);
767 }
768
769 /*********************************************************************
770  Set the user's workstation allowed list.
771  ********************************************************************/
772
773 bool pdb_set_workstations(struct samu *sampass, const char *workstations, enum pdb_value_state flag)
774 {
775         if (workstations) { 
776                 DEBUG(10, ("pdb_set_workstations: setting workstations %s, was %s\n", workstations,
777                         (sampass->workstations)?(sampass->workstations):"NULL"));
778
779                 sampass->workstations = talloc_strdup(sampass, workstations);
780
781                 if (!sampass->workstations) {
782                         DEBUG(0, ("pdb_set_workstations: talloc_strdup() failed!\n"));
783                         return False;
784                 }
785         } else {
786                 sampass->workstations = PDB_NOT_QUITE_NULL;
787         }
788
789         return pdb_set_init_flags(sampass, PDB_WORKSTATIONS, flag);
790 }
791
792 /*********************************************************************
793  ********************************************************************/
794
795 bool pdb_set_comment(struct samu *sampass, const char *comment, enum pdb_value_state flag)
796 {
797         if (comment) { 
798                 sampass->comment = talloc_strdup(sampass, comment);
799
800                 if (!sampass->comment) {
801                         DEBUG(0, ("pdb_set_comment: talloc_strdup() failed!\n"));
802                         return False;
803                 }
804         } else {
805                 sampass->comment = PDB_NOT_QUITE_NULL;
806         }
807
808         return pdb_set_init_flags(sampass, PDB_COMMENT, flag);
809 }
810
811 /*********************************************************************
812  Set the user's dial string.
813  ********************************************************************/
814
815 bool pdb_set_munged_dial(struct samu *sampass, const char *munged_dial, enum pdb_value_state flag)
816 {
817         if (munged_dial) { 
818                 sampass->munged_dial = talloc_strdup(sampass, munged_dial);
819
820                 if (!sampass->munged_dial) {
821                         DEBUG(0, ("pdb_set_munged_dial: talloc_strdup() failed!\n"));
822                         return False;
823                 }
824         } else {
825                 sampass->munged_dial = PDB_NOT_QUITE_NULL;
826         }
827
828         return pdb_set_init_flags(sampass, PDB_MUNGEDDIAL, flag);
829 }
830
831 /*********************************************************************
832  Set the user's NT hash.
833  ********************************************************************/
834
835 bool pdb_set_nt_passwd(struct samu *sampass, const uint8 pwd[NT_HASH_LEN], enum pdb_value_state flag)
836 {
837         data_blob_clear_free(&sampass->nt_pw);
838
839        if (pwd) {
840                sampass->nt_pw =
841                        data_blob_talloc(sampass, pwd, NT_HASH_LEN);
842        } else {
843                sampass->nt_pw = data_blob_null;
844        }
845
846         return pdb_set_init_flags(sampass, PDB_NTPASSWD, flag);
847 }
848
849 /*********************************************************************
850  Set the user's LM hash.
851  ********************************************************************/
852
853 bool pdb_set_lanman_passwd(struct samu *sampass, const uint8 pwd[LM_HASH_LEN], enum pdb_value_state flag)
854 {
855         data_blob_clear_free(&sampass->lm_pw);
856
857         /* on keep the password if we are allowing LANMAN authentication */
858
859         if (pwd && lp_lanman_auth() ) {
860                 sampass->lm_pw = data_blob_talloc(sampass, pwd, LM_HASH_LEN);
861         } else {
862                 sampass->lm_pw = data_blob_null;
863         }
864
865         return pdb_set_init_flags(sampass, PDB_LMPASSWD, flag);
866 }
867
868 /*********************************************************************
869  Set the user's password history hash. historyLen is the number of 
870  PW_HISTORY_SALT_LEN+SALTED_MD5_HASH_LEN length
871  entries to store in the history - this must match the size of the uint8 array
872  in pwd.
873 ********************************************************************/
874
875 bool pdb_set_pw_history(struct samu *sampass, const uint8 *pwd, uint32 historyLen, enum pdb_value_state flag)
876 {
877         if (historyLen && pwd){
878                 data_blob_free(&(sampass->nt_pw_his));
879                 sampass->nt_pw_his = data_blob_talloc(sampass,
880                                                 pwd, historyLen*PW_HISTORY_ENTRY_LEN);
881                 if (!sampass->nt_pw_his.length) {
882                         DEBUG(0, ("pdb_set_pw_history: data_blob_talloc() failed!\n"));
883                         return False;
884                 }
885         } else {
886                 sampass->nt_pw_his = data_blob_talloc(sampass, NULL, 0);
887         }
888
889         return pdb_set_init_flags(sampass, PDB_PWHISTORY, flag);
890 }
891
892 /*********************************************************************
893  Set the user's plaintext password only (base procedure, see helper
894  below)
895  ********************************************************************/
896
897 bool pdb_set_plaintext_pw_only(struct samu *sampass, const char *password, enum pdb_value_state flag)
898 {
899         if (password) { 
900                 if (sampass->plaintext_pw!=NULL) 
901                         memset(sampass->plaintext_pw,'\0',strlen(sampass->plaintext_pw)+1);
902
903                 sampass->plaintext_pw = talloc_strdup(sampass, password);
904
905                 if (!sampass->plaintext_pw) {
906                         DEBUG(0, ("pdb_set_unknown_str: talloc_strdup() failed!\n"));
907                         return False;
908                 }
909         } else {
910                 sampass->plaintext_pw = NULL;
911         }
912
913         return pdb_set_init_flags(sampass, PDB_PLAINTEXT_PW, flag);
914 }
915
916 bool pdb_set_bad_password_count(struct samu *sampass, uint16 bad_password_count, enum pdb_value_state flag)
917 {
918         sampass->bad_password_count = bad_password_count;
919         return pdb_set_init_flags(sampass, PDB_BAD_PASSWORD_COUNT, flag);
920 }
921
922 bool pdb_set_logon_count(struct samu *sampass, uint16 logon_count, enum pdb_value_state flag)
923 {
924         sampass->logon_count = logon_count;
925         return pdb_set_init_flags(sampass, PDB_LOGON_COUNT, flag);
926 }
927
928 bool pdb_set_unknown_6(struct samu *sampass, uint32 unkn, enum pdb_value_state flag)
929 {
930         sampass->unknown_6 = unkn;
931         return pdb_set_init_flags(sampass, PDB_UNKNOWN6, flag);
932 }
933
934 bool pdb_set_hours(struct samu *sampass, const uint8 *hours, enum pdb_value_state flag)
935 {
936         if (!hours) {
937                 memset ((char *)sampass->hours, 0, MAX_HOURS_LEN);
938         } else {
939                 memcpy (sampass->hours, hours, MAX_HOURS_LEN);
940         }
941
942         return pdb_set_init_flags(sampass, PDB_HOURS, flag);
943 }
944
945 bool pdb_set_backend_private_data(struct samu *sampass, void *private_data, 
946                                    void (*free_fn)(void **), 
947                                    const struct pdb_methods *my_methods, 
948                                    enum pdb_value_state flag)
949 {
950         if (sampass->backend_private_data &&
951             sampass->backend_private_data_free_fn) {
952                 sampass->backend_private_data_free_fn(
953                         &sampass->backend_private_data);
954         }
955
956         sampass->backend_private_data = private_data;
957         sampass->backend_private_data_free_fn = free_fn;
958         sampass->backend_private_methods = my_methods;
959
960         return pdb_set_init_flags(sampass, PDB_BACKEND_PRIVATE_DATA, flag);
961 }
962
963
964 /* Helpful interfaces to the above */
965
966 bool pdb_set_pass_can_change(struct samu *sampass, bool canchange)
967 {
968         return pdb_set_pass_can_change_time(sampass, 
969                                      canchange ? 0 : get_time_t_max(),
970                                      PDB_CHANGED);
971 }
972
973
974 /*********************************************************************
975  Set the user's PLAINTEXT password.  Used as an interface to the above.
976  Also sets the last change time to NOW.
977  ********************************************************************/
978
979 bool pdb_set_plaintext_passwd(struct samu *sampass, const char *plaintext)
980 {
981         uchar new_lanman_p16[LM_HASH_LEN];
982         uchar new_nt_p16[NT_HASH_LEN];
983         uchar *pwhistory;
984         uint32 pwHistLen;
985         uint32 current_history_len;
986
987         if (!plaintext)
988                 return False;
989
990         /* Calculate the MD4 hash (NT compatible) of the password */
991         E_md4hash(plaintext, new_nt_p16);
992
993         if (!pdb_set_nt_passwd (sampass, new_nt_p16, PDB_CHANGED)) 
994                 return False;
995
996         if (!E_deshash(plaintext, new_lanman_p16)) {
997                 /* E_deshash returns false for 'long' passwords (> 14
998                    DOS chars).  This allows us to match Win2k, which
999                    does not store a LM hash for these passwords (which
1000                    would reduce the effective password length to 14 */
1001
1002                 if (!pdb_set_lanman_passwd (sampass, NULL, PDB_CHANGED)) 
1003                         return False;
1004         } else {
1005                 if (!pdb_set_lanman_passwd (sampass, new_lanman_p16, PDB_CHANGED)) 
1006                         return False;
1007         }
1008
1009         if (!pdb_set_plaintext_pw_only (sampass, plaintext, PDB_CHANGED)) 
1010                 return False;
1011
1012         if (!pdb_set_pass_last_set_time (sampass, time(NULL), PDB_CHANGED))
1013                 return False;
1014
1015         if ((pdb_get_acct_ctrl(sampass) & ACB_NORMAL) == 0) {
1016                 /*
1017                  * No password history for non-user accounts
1018                  */
1019                 return true;
1020         }
1021
1022         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1023
1024         if (pwHistLen == 0) {
1025                 /* Set the history length to zero. */
1026                 pdb_set_pw_history(sampass, NULL, 0, PDB_CHANGED);
1027                 return true;
1028         }
1029
1030         /*
1031          * We need to make sure we don't have a race condition here -
1032          * the account policy history length can change between when
1033          * the pw_history was first loaded into the struct samu struct
1034          * and now.... JRA.
1035          */
1036         pwhistory = (uchar *)pdb_get_pw_history(sampass, &current_history_len);
1037
1038         if ((current_history_len != 0) && (pwhistory == NULL)) {
1039                 DEBUG(1, ("pdb_set_plaintext_passwd: pwhistory == NULL!\n"));
1040                 return false;
1041         }
1042
1043         if (current_history_len < pwHistLen) {
1044                 /*
1045                  * Ensure we have space for the needed history. This
1046                  * also takes care of an account which did not have
1047                  * any history at all so far, i.e. pwhistory==NULL
1048                  */
1049                 uchar *new_history = talloc_zero_array(
1050                         sampass, uchar,
1051                         pwHistLen*PW_HISTORY_ENTRY_LEN);
1052
1053                 if (!new_history) {
1054                         return False;
1055                 }
1056
1057                 memcpy(new_history, pwhistory,
1058                        current_history_len*PW_HISTORY_ENTRY_LEN);
1059
1060                 pwhistory = new_history;
1061         }
1062
1063         /*
1064          * Make room for the new password in the history list.
1065          */
1066         if (pwHistLen > 1) {
1067                 memmove(&pwhistory[PW_HISTORY_ENTRY_LEN], pwhistory,
1068                         (pwHistLen-1)*PW_HISTORY_ENTRY_LEN );
1069         }
1070
1071         /*
1072          * Fill the salt area with 0-s: this indicates that
1073          * a plain nt hash is stored in the has area.
1074          * The old format was to store a 16 byte salt and
1075          * then an md5hash of the nt_hash concatenated with
1076          * the salt.
1077          */
1078         memset(pwhistory, 0, PW_HISTORY_SALT_LEN);
1079
1080         /*
1081          * Store the plain nt hash in the second 16 bytes.
1082          * The old format was to store the md5 hash of
1083          * the salt+newpw.
1084          */
1085         memcpy(&pwhistory[PW_HISTORY_SALT_LEN], new_nt_p16, SALTED_MD5_HASH_LEN);
1086
1087         pdb_set_pw_history(sampass, pwhistory, pwHistLen, PDB_CHANGED);
1088
1089         return True;
1090 }
1091
1092 /* check for any PDB_SET/CHANGED field and fill the appropriate mask bit */
1093 uint32 pdb_build_fields_present(struct samu *sampass)
1094 {
1095         /* value set to all for testing */
1096         return 0x00ffffff;
1097 }