More pstring elimination.
[kai/samba.git] / source3 / passdb / passdb.c
1 /* 
2    Unix SMB/CIFS implementation.
3    Password and authentication handling
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) Simo Sorce                     2003
9    Copyright (C) Volker Lendecke                2006
10       
11    This program is free software; you can redistribute it and/or modify
12    it under the terms of the GNU General Public License as published by
13    the Free Software Foundation; either version 3 of the License, or
14    (at your option) any later version.
15    
16    This program is distributed in the hope that it will be useful,
17    but WITHOUT ANY WARRANTY; without even the implied warranty of
18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19    GNU General Public License for more details.
20    
21    You should have received a copy of the GNU General Public License
22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #include "includes.h"
26
27 #undef DBGC_CLASS
28 #define DBGC_CLASS DBGC_PASSDB
29
30 /******************************************************************
31  get the default domain/netbios name to be used when 
32  testing authentication.  For example, if you connect
33  to a Windows member server using a bogus domain name, the
34  Windows box will map the BOGUS\user to DOMAIN\user.  A 
35  standalone box will map to WKS\user.
36 ******************************************************************/
37
38 const char *my_sam_name(void)
39 {
40         /* standalone servers can only use the local netbios name */
41         if ( lp_server_role() == ROLE_STANDALONE )
42                 return global_myname();
43
44         /* Windows domain members default to the DOMAIN
45            name when not specified */
46         return lp_workgroup();
47 }
48
49 /**********************************************************************
50 ***********************************************************************/
51
52 static int samu_destroy(struct samu *user) 
53 {
54         data_blob_clear_free( &user->lm_pw );
55         data_blob_clear_free( &user->nt_pw );
56
57         if ( user->plaintext_pw )
58                 memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
59
60         return 0;
61 }
62
63 /**********************************************************************
64  generate a new struct samuser
65 ***********************************************************************/
66
67 struct samu *samu_new( TALLOC_CTX *ctx )
68 {
69         struct samu *user;
70         
71         if ( !(user = TALLOC_ZERO_P( ctx, struct samu )) ) {
72                 DEBUG(0,("samuser_new: Talloc failed!\n"));
73                 return NULL;
74         }
75         
76         talloc_set_destructor( user, samu_destroy );
77         
78         /* no initial methods */
79         
80         user->methods = NULL;
81
82         /* Don't change these timestamp settings without a good reason.
83            They are important for NT member server compatibility. */
84
85         user->logon_time            = (time_t)0;
86         user->pass_last_set_time    = (time_t)0;
87         user->pass_can_change_time  = (time_t)0;
88         user->logoff_time           = get_time_t_max();
89         user->kickoff_time          = get_time_t_max();
90         user->pass_must_change_time = get_time_t_max();
91         user->fields_present        = 0x00ffffff;
92         user->logon_divs = 168;         /* hours per week */
93         user->hours_len = 21;           /* 21 times 8 bits = 168 */
94         memset(user->hours, 0xff, user->hours_len); /* available at all hours */
95         user->bad_password_count = 0;
96         user->logon_count = 0;
97         user->unknown_6 = 0x000004ec; /* don't know */
98
99         /* Some parts of samba strlen their pdb_get...() returns, 
100            so this keeps the interface unchanged for now. */
101            
102         user->username = "";
103         user->domain = "";
104         user->nt_username = "";
105         user->full_name = "";
106         user->home_dir = "";
107         user->logon_script = "";
108         user->profile_path = "";
109         user->acct_desc = "";
110         user->workstations = "";
111         user->comment = "";
112         user->munged_dial = "";
113
114         user->plaintext_pw = NULL;
115
116         /* Unless we know otherwise have a Account Control Bit
117            value of 'normal user'.  This helps User Manager, which
118            asks for a filtered list of users. */
119
120         user->acct_ctrl = ACB_NORMAL;
121         
122         
123         return user;
124 }
125
126 /*********************************************************************
127  Initialize a struct samu from a struct passwd including the user 
128  and group SIDs.  The *user structure is filled out with the Unix
129  attributes and a user SID.
130 *********************************************************************/
131
132 static NTSTATUS samu_set_unix_internal(struct samu *user, const struct passwd *pwd, bool create)
133 {
134         const char *guest_account = lp_guestaccount();
135         const char *domain = global_myname();
136         uint32 urid;
137
138         if ( !pwd ) {
139                 return NT_STATUS_NO_SUCH_USER;
140         }
141
142         /* Basic properties based upon the Unix account information */
143         
144         pdb_set_username(user, pwd->pw_name, PDB_SET);
145         pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
146         pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
147 #if 0
148         /* This can lead to a primary group of S-1-22-2-XX which 
149            will be rejected by other parts of the Samba code. 
150            Rely on pdb_get_group_sid() to "Do The Right Thing" (TM)  
151            --jerry */
152            
153         gid_to_sid(&group_sid, pwd->pw_gid);
154         pdb_set_group_sid(user, &group_sid, PDB_SET);
155 #endif
156         
157         /* save the password structure for later use */
158         
159         user->unix_pw = tcopy_passwd( user, pwd );
160
161         /* Special case for the guest account which must have a RID of 501 */
162         
163         if ( strequal( pwd->pw_name, guest_account ) ) {
164                 if ( !pdb_set_user_sid_from_rid(user, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
165                         return NT_STATUS_NO_SUCH_USER;
166                 }
167                 return NT_STATUS_OK;
168         }
169         
170         /* Non-guest accounts...Check for a workstation or user account */
171
172         if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
173                 /* workstation */
174                 
175                 if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
176                         DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n", 
177                                 pwd->pw_name));
178                         return NT_STATUS_INVALID_COMPUTER_NAME;
179                 }       
180         } 
181         else {
182                 /* user */
183                 
184                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
185                         DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", 
186                                 pwd->pw_name));
187                         return NT_STATUS_INVALID_ACCOUNT_NAME;
188                 }
189                 
190                 /* set some basic attributes */
191         
192                 pdb_set_profile_path(user, talloc_sub_specified(user, 
193                         lp_logon_path(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid), 
194                         PDB_DEFAULT);           
195                 pdb_set_homedir(user, talloc_sub_specified(user, 
196                         lp_logon_home(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
197                         PDB_DEFAULT);
198                 pdb_set_dir_drive(user, talloc_sub_specified(user, 
199                         lp_logon_drive(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
200                         PDB_DEFAULT);
201                 pdb_set_logon_script(user, talloc_sub_specified(user, 
202                         lp_logon_script(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid), 
203                         PDB_DEFAULT);
204         }
205         
206         /* Now deal with the user SID.  If we have a backend that can generate 
207            RIDs, then do so.  But sometimes the caller just wanted a structure 
208            initialized and will fill in these fields later (such as from a 
209            NET_USER_INFO_3 structure) */
210
211         if ( create && !pdb_rid_algorithm() ) {
212                 uint32 user_rid;
213                 DOM_SID user_sid;
214                 
215                 if ( !pdb_new_rid( &user_rid ) ) {
216                         DEBUG(3, ("Could not allocate a new RID\n"));
217                         return NT_STATUS_ACCESS_DENIED;
218                 }
219
220                 sid_copy( &user_sid, get_global_sam_sid() );
221                 sid_append_rid( &user_sid, user_rid );
222
223                 if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
224                         DEBUG(3, ("pdb_set_user_sid failed\n"));
225                         return NT_STATUS_INTERNAL_ERROR;
226                 }
227                 
228                 return NT_STATUS_OK;
229         }
230
231         /* generate a SID for the user with the RID algorithm */
232         
233         urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
234                 
235         if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
236                 return NT_STATUS_INTERNAL_ERROR;
237         }
238         
239         return NT_STATUS_OK;
240 }
241
242 /********************************************************************
243  Set the Unix user attributes
244 ********************************************************************/
245
246 NTSTATUS samu_set_unix(struct samu *user, const struct passwd *pwd)
247 {
248         return samu_set_unix_internal( user, pwd, False );
249 }
250
251 NTSTATUS samu_alloc_rid_unix(struct samu *user, const struct passwd *pwd)
252 {
253         return samu_set_unix_internal( user, pwd, True );
254 }
255
256 /**********************************************************
257  Encode the account control bits into a string.
258  length = length of string to encode into (including terminating
259  null). length *MUST BE MORE THAN 2* !
260  **********************************************************/
261
262 char *pdb_encode_acct_ctrl(uint32 acct_ctrl, size_t length)
263 {
264         fstring acct_str;
265         char *result;
266
267         size_t i = 0;
268
269         SMB_ASSERT(length <= sizeof(acct_str));
270
271         acct_str[i++] = '[';
272
273         if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
274         if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
275         if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
276         if (acct_ctrl & ACB_TEMPDUP  ) acct_str[i++] = 'T'; 
277         if (acct_ctrl & ACB_NORMAL   ) acct_str[i++] = 'U';
278         if (acct_ctrl & ACB_MNS      ) acct_str[i++] = 'M';
279         if (acct_ctrl & ACB_WSTRUST  ) acct_str[i++] = 'W';
280         if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
281         if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
282         if (acct_ctrl & ACB_PWNOEXP  ) acct_str[i++] = 'X';
283         if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
284
285         for ( ; i < length - 2 ; i++ )
286                 acct_str[i] = ' ';
287
288         i = length - 2;
289         acct_str[i++] = ']';
290         acct_str[i++] = '\0';
291
292         result = talloc_strdup(talloc_tos(), acct_str);
293         SMB_ASSERT(result != NULL);
294         return result;
295 }     
296
297 /**********************************************************
298  Decode the account control bits from a string.
299  **********************************************************/
300
301 uint32 pdb_decode_acct_ctrl(const char *p)
302 {
303         uint32 acct_ctrl = 0;
304         bool finished = False;
305
306         /*
307          * Check if the account type bits have been encoded after the
308          * NT password (in the form [NDHTUWSLXI]).
309          */
310
311         if (*p != '[')
312                 return 0;
313
314         for (p++; *p && !finished; p++) {
315                 switch (*p) {
316                         case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
317                         case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
318                         case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
319                         case 'T': { acct_ctrl |= ACB_TEMPDUP  ; break; /* 'T'emp account. */ } 
320                         case 'U': { acct_ctrl |= ACB_NORMAL   ; break; /* 'U'ser account (normal). */ } 
321                         case 'M': { acct_ctrl |= ACB_MNS      ; break; /* 'M'NS logon user account. What is this ? */ } 
322                         case 'W': { acct_ctrl |= ACB_WSTRUST  ; break; /* 'W'orkstation account. */ } 
323                         case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ } 
324                         case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ } 
325                         case 'X': { acct_ctrl |= ACB_PWNOEXP  ; break; /* No 'X'piry on password */ } 
326                         case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
327             case ' ': { break; }
328                         case ':':
329                         case '\n':
330                         case '\0': 
331                         case ']':
332                         default:  { finished = True; }
333                 }
334         }
335
336         return acct_ctrl;
337 }
338
339 /*************************************************************
340  Routine to set 32 hex password characters from a 16 byte array.
341 **************************************************************/
342
343 void pdb_sethexpwd(char p[33], const unsigned char *pwd, uint32 acct_ctrl)
344 {
345         if (pwd != NULL) {
346                 int i;
347                 for (i = 0; i < 16; i++)
348                         slprintf(&p[i*2], 3, "%02X", pwd[i]);
349         } else {
350                 if (acct_ctrl & ACB_PWNOTREQ)
351                         safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 32);
352                 else
353                         safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 32);
354         }
355 }
356
357 /*************************************************************
358  Routine to get the 32 hex characters and turn them
359  into a 16 byte array.
360 **************************************************************/
361
362 bool pdb_gethexpwd(const char *p, unsigned char *pwd)
363 {
364         int i;
365         unsigned char   lonybble, hinybble;
366         const char      *hexchars = "0123456789ABCDEF";
367         char           *p1, *p2;
368         
369         if (!p)
370                 return (False);
371         
372         for (i = 0; i < 32; i += 2) {
373                 hinybble = toupper_ascii(p[i]);
374                 lonybble = toupper_ascii(p[i + 1]);
375
376                 p1 = strchr(hexchars, hinybble);
377                 p2 = strchr(hexchars, lonybble);
378
379                 if (!p1 || !p2)
380                         return (False);
381
382                 hinybble = PTR_DIFF(p1, hexchars);
383                 lonybble = PTR_DIFF(p2, hexchars);
384
385                 pwd[i / 2] = (hinybble << 4) | lonybble;
386         }
387         return (True);
388 }
389
390 /*************************************************************
391  Routine to set 42 hex hours characters from a 21 byte array.
392 **************************************************************/
393
394 void pdb_sethexhours(char *p, const unsigned char *hours)
395 {
396         if (hours != NULL) {
397                 int i;
398                 for (i = 0; i < 21; i++) {
399                         slprintf(&p[i*2], 3, "%02X", hours[i]);
400                 }
401         } else {
402                 safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
403         }
404 }
405
406 /*************************************************************
407  Routine to get the 42 hex characters and turn them
408  into a 21 byte array.
409 **************************************************************/
410
411 bool pdb_gethexhours(const char *p, unsigned char *hours)
412 {
413         int i;
414         unsigned char   lonybble, hinybble;
415         const char      *hexchars = "0123456789ABCDEF";
416         char           *p1, *p2;
417
418         if (!p) {
419                 return (False);
420         }
421
422         for (i = 0; i < 42; i += 2) {
423                 hinybble = toupper_ascii(p[i]);
424                 lonybble = toupper_ascii(p[i + 1]);
425
426                 p1 = strchr(hexchars, hinybble);
427                 p2 = strchr(hexchars, lonybble);
428
429                 if (!p1 || !p2) {
430                         return (False);
431                 }
432
433                 hinybble = PTR_DIFF(p1, hexchars);
434                 lonybble = PTR_DIFF(p2, hexchars);
435
436                 hours[i / 2] = (hinybble << 4) | lonybble;
437         }
438         return (True);
439 }
440
441 /********************************************************************
442 ********************************************************************/
443
444 int algorithmic_rid_base(void)
445 {
446         static int rid_offset = 0;
447
448         if (rid_offset != 0)
449                 return rid_offset;
450
451         rid_offset = lp_algorithmic_rid_base();
452
453         if (rid_offset < BASE_RID) {  
454                 /* Try to prevent admin foot-shooting, we can't put algorithmic
455                    rids below 1000, that's the 'well known RIDs' on NT */
456                 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
457                 rid_offset = BASE_RID;
458         }
459         if (rid_offset & 1) {
460                 DEBUG(0, ("algorithmic rid base must be even\n"));
461                 rid_offset += 1;
462         }
463         return rid_offset;
464 }
465
466 /*******************************************************************
467  Converts NT user RID to a UNIX uid.
468  ********************************************************************/
469
470 uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
471 {
472         int rid_offset = algorithmic_rid_base();
473         return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
474 }
475
476 uid_t max_algorithmic_uid(void)
477 {
478         return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
479 }
480
481 /*******************************************************************
482  converts UNIX uid to an NT User RID.
483  ********************************************************************/
484
485 uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
486 {
487         int rid_offset = algorithmic_rid_base();
488         return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
489 }
490
491 /*******************************************************************
492  Converts NT group RID to a UNIX gid.
493  ********************************************************************/
494
495 gid_t pdb_group_rid_to_gid(uint32 group_rid)
496 {
497         int rid_offset = algorithmic_rid_base();
498         return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
499 }
500
501 gid_t max_algorithmic_gid(void)
502 {
503         return pdb_group_rid_to_gid(0xffffffff);
504 }
505
506 /*******************************************************************
507  converts NT Group RID to a UNIX uid.
508  
509  warning: you must not call that function only
510  you must do a call to the group mapping first.
511  there is not anymore a direct link between the gid and the rid.
512  ********************************************************************/
513
514 uint32 algorithmic_pdb_gid_to_group_rid(gid_t gid)
515 {
516         int rid_offset = algorithmic_rid_base();
517         return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
518 }
519
520 /*******************************************************************
521  Decides if a RID is a well known RID.
522  ********************************************************************/
523
524 static bool rid_is_well_known(uint32 rid)
525 {
526         /* Not using rid_offset here, because this is the actual
527            NT fixed value (1000) */
528
529         return (rid < BASE_RID);
530 }
531
532 /*******************************************************************
533  Decides if a RID is a user or group RID.
534  ********************************************************************/
535
536 bool algorithmic_pdb_rid_is_user(uint32 rid)
537 {
538         if ( rid_is_well_known(rid) ) {
539                 /*
540                  * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
541                  * and DOMAIN_USER_RID_GUEST.
542                  */
543                 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
544                         return True;
545         } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
546                 return True;
547         }
548         return False;
549 }
550
551 /*******************************************************************
552  Convert a name into a SID. Used in the lookup name rpc.
553  ********************************************************************/
554
555 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
556                             enum lsa_SidType *type)
557 {
558         GROUP_MAP map;
559         bool ret;
560         
561         /* Windows treats "MACHINE\None" as a special name for 
562            rid 513 on non-DCs.  You cannot create a user or group
563            name "None" on Windows.  You will get an error that 
564            the group already exists. */
565            
566         if ( strequal( name, "None" ) ) {
567                 *rid = DOMAIN_GROUP_RID_USERS;
568                 *type = SID_NAME_DOM_GRP;
569                 
570                 return True;
571         }
572
573         /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
574          * correctly in the case where foo also exists as a user. If the flag
575          * is set, don't look for users at all. */
576
577         if ((flags & LOOKUP_NAME_GROUP) == 0) {
578                 struct samu *sam_account = NULL;
579                 DOM_SID user_sid;
580
581                 if ( !(sam_account = samu_new( NULL )) ) {
582                         return False;
583                 }
584         
585                 become_root();
586                 ret =  pdb_getsampwnam(sam_account, name);
587                 unbecome_root();
588
589                 if (ret) {
590                         sid_copy(&user_sid, pdb_get_user_sid(sam_account));
591                 }
592                 
593                 TALLOC_FREE(sam_account);
594
595                 if (ret) {
596                         if (!sid_check_is_in_our_domain(&user_sid)) {
597                                 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
598                                           name, sid_string_static(&user_sid)));
599                                 return False;
600                         }
601
602                         sid_peek_rid(&user_sid, rid);
603                         *type = SID_NAME_USER;
604                         return True;
605                 }
606         }
607
608         /*
609          * Maybe it is a group ?
610          */
611
612         become_root();
613         ret = pdb_getgrnam(&map, name);
614         unbecome_root();
615
616         if (!ret) {
617                 return False;
618         }
619
620         /* BUILTIN groups are looked up elsewhere */
621         if (!sid_check_is_in_our_domain(&map.sid)) {
622                 DEBUG(10, ("Found group %s (%s) not in our domain -- "
623                            "ignoring.", name,
624                            sid_string_static(&map.sid)));
625                 return False;
626         }
627
628         /* yes it's a mapped group */
629         sid_peek_rid(&map.sid, rid);
630         *type = map.sid_name_use;
631         return True;
632 }
633
634 /*************************************************************
635  Change a password entry in the local smbpasswd file.
636  *************************************************************/
637
638 NTSTATUS local_password_change(const char *user_name, int local_flags,
639                            const char *new_passwd, 
640                            char *err_str, size_t err_str_len,
641                            char *msg_str, size_t msg_str_len)
642 {
643         struct samu *sam_pass=NULL;
644         uint32 other_acb;
645         NTSTATUS result;
646
647         *err_str = '\0';
648         *msg_str = '\0';
649
650         /* Get the smb passwd entry for this user */
651
652         if ( !(sam_pass = samu_new( NULL )) ) {
653                 return NT_STATUS_NO_MEMORY;
654         }
655
656         become_root();
657         if(!pdb_getsampwnam(sam_pass, user_name)) {
658                 unbecome_root();
659                 TALLOC_FREE(sam_pass);
660                 
661                 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
662                         int tmp_debug = DEBUGLEVEL;
663                         struct passwd *pwd;
664
665                         /* Might not exist in /etc/passwd. */
666
667                         if (tmp_debug < 1) {
668                                 DEBUGLEVEL = 1;
669                         }
670
671                         if ( !(pwd = getpwnam_alloc( NULL, user_name)) ) {
672                                 return NT_STATUS_NO_SUCH_USER;
673                         }
674
675                         /* create the struct samu and initialize the basic Unix properties */
676
677                         if ( !(sam_pass = samu_new( NULL )) ) {
678                                 return NT_STATUS_NO_MEMORY;
679                         }
680
681                         result = samu_set_unix( sam_pass, pwd );
682
683                         DEBUGLEVEL = tmp_debug;
684
685                         TALLOC_FREE( pwd );
686
687                         if (NT_STATUS_EQUAL(result, NT_STATUS_INVALID_PRIMARY_GROUP)) {
688                                 return result;
689                         }
690
691                         if (!NT_STATUS_IS_OK(result)) {
692                                 slprintf(err_str, err_str_len-1, "Failed to " "initialize account for user %s: %s\n",
693                                         user_name, nt_errstr(result));
694                                 return result;
695                         }
696                 } else {
697                         slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
698                         return NT_STATUS_NO_SUCH_USER;
699                 }
700         } else {
701                 unbecome_root();
702                 /* the entry already existed */
703                 local_flags &= ~LOCAL_ADD_USER;
704         }
705
706         /* the 'other' acb bits not being changed here */
707         other_acb =  (pdb_get_acct_ctrl(sam_pass) & (~(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
708         if (local_flags & LOCAL_TRUST_ACCOUNT) {
709                 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
710                         slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
711                         TALLOC_FREE(sam_pass);
712                         return NT_STATUS_UNSUCCESSFUL;
713                 }
714         } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
715                 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
716                         slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
717                         TALLOC_FREE(sam_pass);
718                         return NT_STATUS_UNSUCCESSFUL;
719                 }
720         } else {
721                 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
722                         slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
723                         TALLOC_FREE(sam_pass);
724                         return NT_STATUS_UNSUCCESSFUL;
725                 }
726         }
727
728         /*
729          * We are root - just write the new password
730          * and the valid last change time.
731          */
732
733         if (local_flags & LOCAL_DISABLE_USER) {
734                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
735                         slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
736                         TALLOC_FREE(sam_pass);
737                         return NT_STATUS_UNSUCCESSFUL;
738                 }
739         } else if (local_flags & LOCAL_ENABLE_USER) {
740                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
741                         slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
742                         TALLOC_FREE(sam_pass);
743                         return NT_STATUS_UNSUCCESSFUL;
744                 }
745         }
746         
747         if (local_flags & LOCAL_SET_NO_PASSWORD) {
748                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
749                         slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
750                         TALLOC_FREE(sam_pass);
751                         return NT_STATUS_UNSUCCESSFUL;
752                 }
753         } else if (local_flags & LOCAL_SET_PASSWORD) {
754                 /*
755                  * If we're dealing with setting a completely empty user account
756                  * ie. One with a password of 'XXXX', but not set disabled (like
757                  * an account created from scratch) then if the old password was
758                  * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
759                  * We remove that as we're giving this user their first password
760                  * and the decision hasn't really been made to disable them (ie.
761                  * don't create them disabled). JRA.
762                  */
763                 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
764                         if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
765                                 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
766                                 TALLOC_FREE(sam_pass);
767                                 return NT_STATUS_UNSUCCESSFUL;
768                         }
769                 }
770                 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
771                         slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
772                         TALLOC_FREE(sam_pass);
773                         return NT_STATUS_UNSUCCESSFUL;
774                 }
775                 
776                 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
777                         slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
778                         TALLOC_FREE(sam_pass);
779                         return NT_STATUS_UNSUCCESSFUL;
780                 }
781         }       
782
783         if (local_flags & LOCAL_ADD_USER) {
784                 if (NT_STATUS_IS_OK(pdb_add_sam_account(sam_pass))) {
785                         slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
786                         TALLOC_FREE(sam_pass);
787                         return NT_STATUS_OK;
788                 } else {
789                         slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
790                         TALLOC_FREE(sam_pass);
791                         return NT_STATUS_UNSUCCESSFUL;
792                 }
793         } else if (local_flags & LOCAL_DELETE_USER) {
794                 if (!NT_STATUS_IS_OK(pdb_delete_sam_account(sam_pass))) {
795                         slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
796                         TALLOC_FREE(sam_pass);
797                         return NT_STATUS_UNSUCCESSFUL;
798                 }
799                 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
800         } else {
801                 result = pdb_update_sam_account(sam_pass);
802                 if(!NT_STATUS_IS_OK(result)) {
803                         slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
804                         TALLOC_FREE(sam_pass);
805                         return result;
806                 }
807                 if(local_flags & LOCAL_DISABLE_USER)
808                         slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
809                 else if (local_flags & LOCAL_ENABLE_USER)
810                         slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
811                 else if (local_flags & LOCAL_SET_NO_PASSWORD)
812                         slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
813         }
814
815         TALLOC_FREE(sam_pass);
816         return NT_STATUS_OK;
817 }
818
819 /**********************************************************************
820  Marshall/unmarshall struct samu structs.
821  *********************************************************************/
822
823 #define TDB_FORMAT_STRING_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
824
825 /*********************************************************************
826 *********************************************************************/
827
828 bool init_sam_from_buffer_v3(struct samu *sampass, uint8 *buf, uint32 buflen)
829 {
830
831         /* times are stored as 32bit integer
832            take care on system with 64bit wide time_t
833            --SSS */
834         uint32  logon_time,
835                 logoff_time,
836                 kickoff_time,
837                 bad_password_time,
838                 pass_last_set_time,
839                 pass_can_change_time,
840                 pass_must_change_time;
841         char *username = NULL;
842         char *domain = NULL;
843         char *nt_username = NULL;
844         char *dir_drive = NULL;
845         char *unknown_str = NULL;
846         char *munged_dial = NULL;
847         char *fullname = NULL;
848         char *homedir = NULL;
849         char *logon_script = NULL;
850         char *profile_path = NULL;
851         char *acct_desc = NULL;
852         char *workstations = NULL;
853         uint32  username_len, domain_len, nt_username_len,
854                 dir_drive_len, unknown_str_len, munged_dial_len,
855                 fullname_len, homedir_len, logon_script_len,
856                 profile_path_len, acct_desc_len, workstations_len;
857                 
858         uint32  user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
859         uint16  logon_divs;
860         uint16  bad_password_count, logon_count;
861         uint8   *hours = NULL;
862         uint8   *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
863         uint32          len = 0;
864         uint32          lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
865         uint32 pwHistLen = 0;
866         bool ret = True;
867         fstring tmp_string;
868         bool expand_explicit = lp_passdb_expand_explicit();
869         
870         if(sampass == NULL || buf == NULL) {
871                 DEBUG(0, ("init_sam_from_buffer_v3: NULL parameters found!\n"));
872                 return False;
873         }
874                                                                         
875 /* TDB_FORMAT_STRING_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
876
877         /* unpack the buffer into variables */
878         len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING_V3,
879                 &logon_time,                                            /* d */
880                 &logoff_time,                                           /* d */
881                 &kickoff_time,                                          /* d */
882                 &bad_password_time,                                     /* d */
883                 &pass_last_set_time,                                    /* d */
884                 &pass_can_change_time,                                  /* d */
885                 &pass_must_change_time,                                 /* d */
886                 &username_len, &username,                               /* B */
887                 &domain_len, &domain,                                   /* B */
888                 &nt_username_len, &nt_username,                         /* B */
889                 &fullname_len, &fullname,                               /* B */
890                 &homedir_len, &homedir,                                 /* B */
891                 &dir_drive_len, &dir_drive,                             /* B */
892                 &logon_script_len, &logon_script,                       /* B */
893                 &profile_path_len, &profile_path,                       /* B */
894                 &acct_desc_len, &acct_desc,                             /* B */
895                 &workstations_len, &workstations,                       /* B */
896                 &unknown_str_len, &unknown_str,                         /* B */
897                 &munged_dial_len, &munged_dial,                         /* B */
898                 &user_rid,                                              /* d */
899                 &group_rid,                                             /* d */
900                 &lm_pw_len, &lm_pw_ptr,                                 /* B */
901                 &nt_pw_len, &nt_pw_ptr,                                 /* B */
902                 /* Change from V1 is addition of password history field. */
903                 &nt_pw_hist_len, &nt_pw_hist_ptr,                       /* B */
904                 /* Change from V2 is the uint32 acb_mask */
905                 &acct_ctrl,                                             /* d */
906                 /* Also "remove_me" field was removed. */
907                 &logon_divs,                                            /* w */
908                 &hours_len,                                             /* d */
909                 &hourslen, &hours,                                      /* B */
910                 &bad_password_count,                                    /* w */
911                 &logon_count,                                           /* w */
912                 &unknown_6);                                            /* d */
913                 
914         if (len == (uint32) -1)  {
915                 ret = False;
916                 goto done;
917         }
918
919         pdb_set_logon_time(sampass, convert_uint32_to_time_t(logon_time), PDB_SET);
920         pdb_set_logoff_time(sampass, convert_uint32_to_time_t(logoff_time), PDB_SET);
921         pdb_set_kickoff_time(sampass, convert_uint32_to_time_t(kickoff_time), PDB_SET);
922         pdb_set_bad_password_time(sampass, convert_uint32_to_time_t(bad_password_time), PDB_SET);
923         pdb_set_pass_can_change_time(sampass, convert_uint32_to_time_t(pass_can_change_time), PDB_SET);
924         pdb_set_pass_must_change_time(sampass, convert_uint32_to_time_t(pass_must_change_time), PDB_SET);
925         pdb_set_pass_last_set_time(sampass, convert_uint32_to_time_t(pass_last_set_time), PDB_SET);
926
927         pdb_set_username(sampass, username, PDB_SET); 
928         pdb_set_domain(sampass, domain, PDB_SET);
929         pdb_set_nt_username(sampass, nt_username, PDB_SET);
930         pdb_set_fullname(sampass, fullname, PDB_SET);
931
932         if (homedir) {
933                 fstrcpy( tmp_string, homedir );
934                 if (expand_explicit) {
935                         standard_sub_basic( username, domain, tmp_string,
936                                             sizeof(tmp_string) );
937                 }
938                 pdb_set_homedir(sampass, tmp_string, PDB_SET);
939         }
940         else {
941                 pdb_set_homedir(sampass, 
942                         talloc_sub_basic(sampass, username, domain,
943                                          lp_logon_home()),
944                         PDB_DEFAULT);
945         }
946
947         if (dir_drive)  
948                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
949         else
950                 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
951
952         if (logon_script) {
953                 fstrcpy( tmp_string, logon_script );
954                 if (expand_explicit) {
955                         standard_sub_basic( username, domain, tmp_string,
956                                             sizeof(tmp_string) );
957                 }
958                 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
959         }
960         else {
961                 pdb_set_logon_script(sampass, 
962                         talloc_sub_basic(sampass, username, domain,
963                                          lp_logon_script()),
964                         PDB_DEFAULT);
965         }
966         
967         if (profile_path) {     
968                 fstrcpy( tmp_string, profile_path );
969                 if (expand_explicit) {
970                         standard_sub_basic( username, domain, tmp_string,
971                                             sizeof(tmp_string) );
972                 }
973                 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
974         } 
975         else {
976                 pdb_set_profile_path(sampass, 
977                         talloc_sub_basic(sampass, username, domain, lp_logon_path()),
978                         PDB_DEFAULT);
979         }
980
981         pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
982         pdb_set_workstations(sampass, workstations, PDB_SET);
983         pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
984
985         if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
986                 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
987                         ret = False;
988                         goto done;
989                 }
990         }
991
992         if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
993                 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
994                         ret = False;
995                         goto done;
996                 }
997         }
998
999         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1000         if (pwHistLen) {
1001                 uint8 *pw_hist = (uint8 *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1002                 if (!pw_hist) {
1003                         ret = False;
1004                         goto done;
1005                 }
1006                 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1007                 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1008                         int i;
1009                         SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1010                         nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1011                         for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1012                                 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1013                                         &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1014                                         PW_HISTORY_ENTRY_LEN);
1015                         }
1016                 }
1017                 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1018                         SAFE_FREE(pw_hist);
1019                         ret = False;
1020                         goto done;
1021                 }
1022                 SAFE_FREE(pw_hist);
1023         } else {
1024                 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1025         }
1026
1027         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1028         pdb_set_hours_len(sampass, hours_len, PDB_SET);
1029         pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1030         pdb_set_logon_count(sampass, logon_count, PDB_SET);
1031         pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1032         /* Change from V2 is the uint32 acct_ctrl */
1033         pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1034         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1035         pdb_set_hours(sampass, hours, PDB_SET);
1036
1037 done:
1038
1039         SAFE_FREE(username);
1040         SAFE_FREE(domain);
1041         SAFE_FREE(nt_username);
1042         SAFE_FREE(fullname);
1043         SAFE_FREE(homedir);
1044         SAFE_FREE(dir_drive);
1045         SAFE_FREE(logon_script);
1046         SAFE_FREE(profile_path);
1047         SAFE_FREE(acct_desc);
1048         SAFE_FREE(workstations);
1049         SAFE_FREE(munged_dial);
1050         SAFE_FREE(unknown_str);
1051         SAFE_FREE(lm_pw_ptr);
1052         SAFE_FREE(nt_pw_ptr);
1053         SAFE_FREE(nt_pw_hist_ptr);
1054         SAFE_FREE(hours);
1055
1056         return ret;
1057 }
1058
1059 /*********************************************************************
1060 *********************************************************************/
1061
1062 uint32 init_buffer_from_sam_v3 (uint8 **buf, struct samu *sampass, bool size_only)
1063 {
1064         size_t len, buflen;
1065
1066         /* times are stored as 32bit integer
1067            take care on system with 64bit wide time_t
1068            --SSS */
1069         uint32  logon_time,
1070                 logoff_time,
1071                 kickoff_time,
1072                 bad_password_time,
1073                 pass_last_set_time,
1074                 pass_can_change_time,
1075                 pass_must_change_time;
1076
1077         uint32  user_rid, group_rid;
1078
1079         const char *username;
1080         const char *domain;
1081         const char *nt_username;
1082         const char *dir_drive;
1083         const char *unknown_str;
1084         const char *munged_dial;
1085         const char *fullname;
1086         const char *homedir;
1087         const char *logon_script;
1088         const char *profile_path;
1089         const char *acct_desc;
1090         const char *workstations;
1091         uint32  username_len, domain_len, nt_username_len,
1092                 dir_drive_len, unknown_str_len, munged_dial_len,
1093                 fullname_len, homedir_len, logon_script_len,
1094                 profile_path_len, acct_desc_len, workstations_len;
1095
1096         const uint8 *lm_pw;
1097         const uint8 *nt_pw;
1098         const uint8 *nt_pw_hist;
1099         uint32  lm_pw_len = 16;
1100         uint32  nt_pw_len = 16;
1101         uint32  nt_pw_hist_len;
1102         uint32 pwHistLen = 0;
1103
1104         *buf = NULL;
1105         buflen = 0;
1106
1107         logon_time = convert_time_t_to_uint32(pdb_get_logon_time(sampass));
1108         logoff_time = convert_time_t_to_uint32(pdb_get_logoff_time(sampass));
1109         kickoff_time = convert_time_t_to_uint32(pdb_get_kickoff_time(sampass));
1110         bad_password_time = convert_time_t_to_uint32(pdb_get_bad_password_time(sampass));
1111         pass_can_change_time = convert_time_t_to_uint32(pdb_get_pass_can_change_time_noncalc(sampass));
1112         pass_must_change_time = convert_time_t_to_uint32(pdb_get_pass_must_change_time(sampass));
1113         pass_last_set_time = convert_time_t_to_uint32(pdb_get_pass_last_set_time(sampass));
1114
1115         user_rid = pdb_get_user_rid(sampass);
1116         group_rid = pdb_get_group_rid(sampass);
1117
1118         username = pdb_get_username(sampass);
1119         if (username) {
1120                 username_len = strlen(username) +1;
1121         } else {
1122                 username_len = 0;
1123         }
1124
1125         domain = pdb_get_domain(sampass);
1126         if (domain) {
1127                 domain_len = strlen(domain) +1;
1128         } else {
1129                 domain_len = 0;
1130         }
1131
1132         nt_username = pdb_get_nt_username(sampass);
1133         if (nt_username) {
1134                 nt_username_len = strlen(nt_username) +1;
1135         } else {
1136                 nt_username_len = 0;
1137         }
1138
1139         fullname = pdb_get_fullname(sampass);
1140         if (fullname) {
1141                 fullname_len = strlen(fullname) +1;
1142         } else {
1143                 fullname_len = 0;
1144         }
1145
1146         /*
1147          * Only updates fields which have been set (not defaults from smb.conf)
1148          */
1149
1150         if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1151                 dir_drive = pdb_get_dir_drive(sampass);
1152         } else {
1153                 dir_drive = NULL;
1154         }
1155         if (dir_drive) {
1156                 dir_drive_len = strlen(dir_drive) +1;
1157         } else {
1158                 dir_drive_len = 0;
1159         }
1160
1161         if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1162                 homedir = pdb_get_homedir(sampass);
1163         } else {
1164                 homedir = NULL;
1165         }
1166         if (homedir) {
1167                 homedir_len = strlen(homedir) +1;
1168         } else {
1169                 homedir_len = 0;
1170         }
1171
1172         if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1173                 logon_script = pdb_get_logon_script(sampass);
1174         } else {
1175                 logon_script = NULL;
1176         }
1177         if (logon_script) {
1178                 logon_script_len = strlen(logon_script) +1;
1179         } else {
1180                 logon_script_len = 0;
1181         }
1182
1183         if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1184                 profile_path = pdb_get_profile_path(sampass);
1185         } else {
1186                 profile_path = NULL;
1187         }
1188         if (profile_path) {
1189                 profile_path_len = strlen(profile_path) +1;
1190         } else {
1191                 profile_path_len = 0;
1192         }
1193         
1194         lm_pw = pdb_get_lanman_passwd(sampass);
1195         if (!lm_pw) {
1196                 lm_pw_len = 0;
1197         }
1198         
1199         nt_pw = pdb_get_nt_passwd(sampass);
1200         if (!nt_pw) {
1201                 nt_pw_len = 0;
1202         }
1203
1204         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1205         nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
1206         if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1207                 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1208         } else {
1209                 nt_pw_hist_len = 0;
1210         }
1211
1212         acct_desc = pdb_get_acct_desc(sampass);
1213         if (acct_desc) {
1214                 acct_desc_len = strlen(acct_desc) +1;
1215         } else {
1216                 acct_desc_len = 0;
1217         }
1218
1219         workstations = pdb_get_workstations(sampass);
1220         if (workstations) {
1221                 workstations_len = strlen(workstations) +1;
1222         } else {
1223                 workstations_len = 0;
1224         }
1225
1226         unknown_str = NULL;
1227         unknown_str_len = 0;
1228
1229         munged_dial = pdb_get_munged_dial(sampass);
1230         if (munged_dial) {
1231                 munged_dial_len = strlen(munged_dial) +1;
1232         } else {
1233                 munged_dial_len = 0;    
1234         }
1235
1236 /* TDB_FORMAT_STRING_V3       "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1237
1238         /* one time to get the size needed */
1239         len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING_V3,
1240                 logon_time,                             /* d */
1241                 logoff_time,                            /* d */
1242                 kickoff_time,                           /* d */
1243                 bad_password_time,                      /* d */
1244                 pass_last_set_time,                     /* d */
1245                 pass_can_change_time,                   /* d */
1246                 pass_must_change_time,                  /* d */
1247                 username_len, username,                 /* B */
1248                 domain_len, domain,                     /* B */
1249                 nt_username_len, nt_username,           /* B */
1250                 fullname_len, fullname,                 /* B */
1251                 homedir_len, homedir,                   /* B */
1252                 dir_drive_len, dir_drive,               /* B */
1253                 logon_script_len, logon_script,         /* B */
1254                 profile_path_len, profile_path,         /* B */
1255                 acct_desc_len, acct_desc,               /* B */
1256                 workstations_len, workstations,         /* B */
1257                 unknown_str_len, unknown_str,           /* B */
1258                 munged_dial_len, munged_dial,           /* B */
1259                 user_rid,                               /* d */
1260                 group_rid,                              /* d */
1261                 lm_pw_len, lm_pw,                       /* B */
1262                 nt_pw_len, nt_pw,                       /* B */
1263                 nt_pw_hist_len, nt_pw_hist,             /* B */
1264                 pdb_get_acct_ctrl(sampass),             /* d */
1265                 pdb_get_logon_divs(sampass),            /* w */
1266                 pdb_get_hours_len(sampass),             /* d */
1267                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1268                 pdb_get_bad_password_count(sampass),    /* w */
1269                 pdb_get_logon_count(sampass),           /* w */
1270                 pdb_get_unknown_6(sampass));            /* d */
1271
1272         if (size_only) {
1273                 return buflen;
1274         }
1275
1276         /* malloc the space needed */
1277         if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
1278                 DEBUG(0,("init_buffer_from_sam_v3: Unable to malloc() memory for buffer!\n"));
1279                 return (-1);
1280         }
1281         
1282         /* now for the real call to tdb_pack() */
1283         buflen = tdb_pack(*buf, len,  TDB_FORMAT_STRING_V3,
1284                 logon_time,                             /* d */
1285                 logoff_time,                            /* d */
1286                 kickoff_time,                           /* d */
1287                 bad_password_time,                      /* d */
1288                 pass_last_set_time,                     /* d */
1289                 pass_can_change_time,                   /* d */
1290                 pass_must_change_time,                  /* d */
1291                 username_len, username,                 /* B */
1292                 domain_len, domain,                     /* B */
1293                 nt_username_len, nt_username,           /* B */
1294                 fullname_len, fullname,                 /* B */
1295                 homedir_len, homedir,                   /* B */
1296                 dir_drive_len, dir_drive,               /* B */
1297                 logon_script_len, logon_script,         /* B */
1298                 profile_path_len, profile_path,         /* B */
1299                 acct_desc_len, acct_desc,               /* B */
1300                 workstations_len, workstations,         /* B */
1301                 unknown_str_len, unknown_str,           /* B */
1302                 munged_dial_len, munged_dial,           /* B */
1303                 user_rid,                               /* d */
1304                 group_rid,                              /* d */
1305                 lm_pw_len, lm_pw,                       /* B */
1306                 nt_pw_len, nt_pw,                       /* B */
1307                 nt_pw_hist_len, nt_pw_hist,             /* B */
1308                 pdb_get_acct_ctrl(sampass),             /* d */
1309                 pdb_get_logon_divs(sampass),            /* w */
1310                 pdb_get_hours_len(sampass),             /* d */
1311                 MAX_HOURS_LEN, pdb_get_hours(sampass),  /* B */
1312                 pdb_get_bad_password_count(sampass),    /* w */
1313                 pdb_get_logon_count(sampass),           /* w */
1314                 pdb_get_unknown_6(sampass));            /* d */
1315         
1316         /* check to make sure we got it correct */
1317         if (buflen != len) {
1318                 DEBUG(0, ("init_buffer_from_sam_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n", 
1319                           (unsigned long)buflen, (unsigned long)len));  
1320                 /* error */
1321                 SAFE_FREE (*buf);
1322                 return (-1);
1323         }
1324
1325         return (buflen);
1326 }
1327
1328
1329 /*********************************************************************
1330 *********************************************************************/
1331
1332 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
1333 {
1334         uint8 *buf = NULL;
1335         int len;
1336
1337         len = init_buffer_from_sam_v3(&buf, src, False);
1338         if (len == -1 || !buf) {
1339                 SAFE_FREE(buf);
1340                 return False;
1341         }
1342
1343         if (!init_sam_from_buffer_v3( dst, buf, len )) {
1344                 free(buf);
1345                 return False;
1346         }
1347
1348         dst->methods = src->methods;
1349         
1350         if ( src->unix_pw ) {
1351                 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
1352                 if (!dst->unix_pw) {
1353                         free(buf);
1354                         return False;
1355                 }
1356         }
1357
1358         free(buf);
1359         return True;
1360 }
1361
1362 /*********************************************************************
1363  Update the bad password count checking the AP_RESET_COUNT_TIME 
1364 *********************************************************************/
1365
1366 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
1367 {
1368         time_t LastBadPassword;
1369         uint16 BadPasswordCount;
1370         uint32 resettime; 
1371         bool res;
1372
1373         BadPasswordCount = pdb_get_bad_password_count(sampass);
1374         if (!BadPasswordCount) {
1375                 DEBUG(9, ("No bad password attempts.\n"));
1376                 return True;
1377         }
1378
1379         become_root();
1380         res = pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime);
1381         unbecome_root();
1382
1383         if (!res) {
1384                 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
1385                 return False;
1386         }
1387
1388         /* First, check if there is a reset time to compare */
1389         if ((resettime == (uint32) -1) || (resettime == 0)) {
1390                 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
1391                 return True;
1392         }
1393
1394         LastBadPassword = pdb_get_bad_password_time(sampass);
1395         DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n", 
1396                    (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
1397         if (time(NULL) > (LastBadPassword + convert_uint32_to_time_t(resettime)*60)){
1398                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1399                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1400                 if (updated) {
1401                         *updated = True;
1402                 }
1403         }
1404
1405         return True;
1406 }
1407
1408 /*********************************************************************
1409  Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION 
1410 *********************************************************************/
1411
1412 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
1413 {
1414         uint32 duration;
1415         time_t LastBadPassword;
1416         bool res;
1417
1418         if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
1419                 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
1420                         pdb_get_username(sampass)));
1421                 return True;
1422         }
1423
1424         become_root();
1425         res = pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration);
1426         unbecome_root();
1427
1428         if (!res) {
1429                 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
1430                 return False;
1431         }
1432
1433         /* First, check if there is a duration to compare */
1434         if ((duration == (uint32) -1)  || (duration == 0)) {
1435                 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
1436                 return True;
1437         }
1438                       
1439         LastBadPassword = pdb_get_bad_password_time(sampass);
1440         DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
1441                   pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
1442
1443         if (LastBadPassword == (time_t)0) {
1444                 DEBUG(1,("pdb_update_autolock_flag: Account %s "
1445                          "administratively locked out with no bad password "
1446                          "time. Leaving locked out.\n",
1447                          pdb_get_username(sampass) ));
1448                 return True;
1449         }
1450
1451         if ((time(NULL) > (LastBadPassword + convert_uint32_to_time_t(duration) * 60))) {
1452                 pdb_set_acct_ctrl(sampass,
1453                                   pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
1454                                   PDB_CHANGED);
1455                 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1456                 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1457                 if (updated) {
1458                         *updated = True;
1459                 }
1460         }
1461         
1462         return True;
1463 }
1464
1465 /*********************************************************************
1466  Increment the bad_password_count 
1467 *********************************************************************/
1468
1469 bool pdb_increment_bad_password_count(struct samu *sampass)
1470 {
1471         uint32 account_policy_lockout;
1472         bool autolock_updated = False, badpw_updated = False;
1473         bool ret;
1474
1475         /* Retrieve the account lockout policy */
1476         become_root();
1477         ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
1478         unbecome_root();
1479         if ( !ret ) {
1480                 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
1481                 return False;
1482         }
1483
1484         /* If there is no policy, we don't need to continue checking */
1485         if (!account_policy_lockout) {
1486                 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
1487                 return True;
1488         }
1489
1490         /* Check if the autolock needs to be cleared */
1491         if (!pdb_update_autolock_flag(sampass, &autolock_updated))
1492                 return False;
1493
1494         /* Check if the badpw count needs to be reset */
1495         if (!pdb_update_bad_password_count(sampass, &badpw_updated))
1496                 return False;
1497
1498         /*
1499           Ok, now we can assume that any resetting that needs to be 
1500           done has been done, and just get on with incrementing
1501           and autolocking if necessary
1502         */
1503
1504         pdb_set_bad_password_count(sampass, 
1505                                    pdb_get_bad_password_count(sampass)+1,
1506                                    PDB_CHANGED);
1507         pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
1508
1509
1510         if (pdb_get_bad_password_count(sampass) < account_policy_lockout) 
1511                 return True;
1512
1513         if (!pdb_set_acct_ctrl(sampass,
1514                                pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
1515                                PDB_CHANGED)) {
1516                 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n")); 
1517                 return False;
1518         }
1519
1520         return True;
1521 }
1522
1523
1524 /*******************************************************************
1525  Wrapper around retrieving the trust account password
1526 *******************************************************************/
1527
1528 bool get_trust_pw(const char *domain, uint8 ret_pwd[16], uint32 *channel)
1529 {
1530         DOM_SID sid;
1531         char *pwd;
1532         time_t last_set_time;
1533
1534         /* if we are a DC and this is not our domain, then lookup an account
1535                 for the domain trust */
1536
1537         if (IS_DC && !strequal(domain, lp_workgroup()) &&
1538             lp_allow_trusted_domains())
1539         {
1540                 if (!pdb_get_trusteddom_pw(domain, &pwd, &sid, &last_set_time))
1541                 {
1542                         DEBUG(0, ("get_trust_pw: could not fetch trust "
1543                                 "account password for trusted domain %s\n",
1544                                 domain));
1545                         return False;
1546                 }
1547
1548                 *channel = SEC_CHAN_DOMAIN;
1549                 E_md4hash(pwd, ret_pwd);
1550                 SAFE_FREE(pwd);
1551
1552                 return True;
1553         }
1554
1555         /* Just get the account for the requested domain. In the future this
1556          * might also cover to be member of more than one domain. */
1557
1558         if (secrets_fetch_trust_account_password(domain, ret_pwd,
1559                                                 &last_set_time, channel))
1560                 return True;
1561
1562         DEBUG(5, ("get_trust_pw: could not fetch trust account "
1563                 "password for domain %s\n", domain));
1564         return False;
1565 }
1566