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