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Let get_trust_pw() determine the machine_account_name to use.
[Samba/gebeck_regimport.git] / source3 / passdb / passdb.c
blobf9b972da9b0db9dff4a757e03fe27e9eb932e891
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,
639 int local_flags,
640 const char *new_passwd,
641 char **pp_err_str,
642 char **pp_msg_str)
643 {
644 struct samu *sam_pass=NULL;
645 uint32 other_acb;
646 NTSTATUS result;
647
648 *pp_err_str = NULL;
649 *pp_msg_str = NULL;
650
651 /* Get the smb passwd entry for this user */
652
653 if ( !(sam_pass = samu_new( NULL )) ) {
654 return NT_STATUS_NO_MEMORY;
655 }
656
657 become_root();
658 if(!pdb_getsampwnam(sam_pass, user_name)) {
659 unbecome_root();
660 TALLOC_FREE(sam_pass);
661
662 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
663 int tmp_debug = DEBUGLEVEL;
664 struct passwd *pwd;
665
666 /* Might not exist in /etc/passwd. */
667
668 if (tmp_debug < 1) {
669 DEBUGLEVEL = 1;
670 }
671
672 if ( !(pwd = getpwnam_alloc( NULL, user_name)) ) {
673 return NT_STATUS_NO_SUCH_USER;
674 }
675
676 /* create the struct samu and initialize the basic Unix properties */
677
678 if ( !(sam_pass = samu_new( NULL )) ) {
679 return NT_STATUS_NO_MEMORY;
680 }
681
682 result = samu_set_unix( sam_pass, pwd );
683
684 DEBUGLEVEL = tmp_debug;
685
686 TALLOC_FREE( pwd );
687
688 if (NT_STATUS_EQUAL(result, NT_STATUS_INVALID_PRIMARY_GROUP)) {
689 return result;
690 }
691
692 if (!NT_STATUS_IS_OK(result)) {
693 asprintf(pp_err_str, "Failed to " "initialize account for user %s: %s\n",
694 user_name, nt_errstr(result));
695 return result;
696 }
697 } else {
698 asprintf(pp_err_str, "Failed to find entry for user %s.\n", user_name);
699 return NT_STATUS_NO_SUCH_USER;
700 }
701 } else {
702 unbecome_root();
703 /* the entry already existed */
704 local_flags &= ~LOCAL_ADD_USER;
705 }
706
707 /* the 'other' acb bits not being changed here */
708 other_acb = (pdb_get_acct_ctrl(sam_pass) & (~(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
709 if (local_flags & LOCAL_TRUST_ACCOUNT) {
710 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
711 asprintf(pp_err_str, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
712 TALLOC_FREE(sam_pass);
713 return NT_STATUS_UNSUCCESSFUL;
714 }
715 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
716 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
717 asprintf(pp_err_str, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
718 TALLOC_FREE(sam_pass);
719 return NT_STATUS_UNSUCCESSFUL;
720 }
721 } else {
722 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
723 asprintf(pp_err_str, "Failed to set 'normal account' flags for user %s.\n", user_name);
724 TALLOC_FREE(sam_pass);
725 return NT_STATUS_UNSUCCESSFUL;
726 }
727 }
728
729 /*
730 * We are root - just write the new password
731 * and the valid last change time.
732 */
733
734 if (local_flags & LOCAL_DISABLE_USER) {
735 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
736 asprintf(pp_err_str, "Failed to set 'disabled' flag for user %s.\n", user_name);
737 TALLOC_FREE(sam_pass);
738 return NT_STATUS_UNSUCCESSFUL;
739 }
740 } else if (local_flags & LOCAL_ENABLE_USER) {
741 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
742 asprintf(pp_err_str, "Failed to unset 'disabled' flag for user %s.\n", user_name);
743 TALLOC_FREE(sam_pass);
744 return NT_STATUS_UNSUCCESSFUL;
745 }
746 }
747
748 if (local_flags & LOCAL_SET_NO_PASSWORD) {
749 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
750 asprintf(pp_err_str, "Failed to set 'no password required' flag for user %s.\n", user_name);
751 TALLOC_FREE(sam_pass);
752 return NT_STATUS_UNSUCCESSFUL;
753 }
754 } else if (local_flags & LOCAL_SET_PASSWORD) {
755 /*
756 * If we're dealing with setting a completely empty user account
757 * ie. One with a password of 'XXXX', but not set disabled (like
758 * an account created from scratch) then if the old password was
759 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
760 * We remove that as we're giving this user their first password
761 * and the decision hasn't really been made to disable them (ie.
762 * don't create them disabled). JRA.
763 */
764 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
765 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
766 asprintf(pp_err_str, "Failed to unset 'disabled' flag for user %s.\n", user_name);
767 TALLOC_FREE(sam_pass);
768 return NT_STATUS_UNSUCCESSFUL;
769 }
770 }
771 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
772 asprintf(pp_err_str, "Failed to unset 'no password required' flag for user %s.\n", user_name);
773 TALLOC_FREE(sam_pass);
774 return NT_STATUS_UNSUCCESSFUL;
775 }
776
777 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
778 asprintf(pp_err_str, "Failed to set password for user %s.\n", user_name);
779 TALLOC_FREE(sam_pass);
780 return NT_STATUS_UNSUCCESSFUL;
781 }
782 }
783
784 if (local_flags & LOCAL_ADD_USER) {
785 if (NT_STATUS_IS_OK(pdb_add_sam_account(sam_pass))) {
786 asprintf(pp_msg_str, "Added user %s.\n", user_name);
787 TALLOC_FREE(sam_pass);
788 return NT_STATUS_OK;
789 } else {
790 asprintf(pp_err_str, "Failed to add entry for user %s.\n", user_name);
791 TALLOC_FREE(sam_pass);
792 return NT_STATUS_UNSUCCESSFUL;
793 }
794 } else if (local_flags & LOCAL_DELETE_USER) {
795 if (!NT_STATUS_IS_OK(pdb_delete_sam_account(sam_pass))) {
796 asprintf(pp_err_str, "Failed to delete entry for user %s.\n", user_name);
797 TALLOC_FREE(sam_pass);
798 return NT_STATUS_UNSUCCESSFUL;
799 }
800 asprintf(pp_msg_str, "Deleted user %s.\n", user_name);
801 } else {
802 result = pdb_update_sam_account(sam_pass);
803 if(!NT_STATUS_IS_OK(result)) {
804 asprintf(pp_err_str, "Failed to modify entry for user %s.\n", user_name);
805 TALLOC_FREE(sam_pass);
806 return result;
807 }
808 if(local_flags & LOCAL_DISABLE_USER)
809 asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
810 else if (local_flags & LOCAL_ENABLE_USER)
811 asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
812 else if (local_flags & LOCAL_SET_NO_PASSWORD)
813 asprintf(pp_msg_str, "User %s password set to none.\n", user_name);
814 }
815
816 TALLOC_FREE(sam_pass);
817 return NT_STATUS_OK;
818 }
819
820 /**********************************************************************
821 Marshall/unmarshall struct samu structs.
822 *********************************************************************/
823
824 #define TDB_FORMAT_STRING_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
825
826 /*********************************************************************
827 *********************************************************************/
828
829 bool init_sam_from_buffer_v3(struct samu *sampass, uint8 *buf, uint32 buflen)
830 {
831
832 /* times are stored as 32bit integer
833 take care on system with 64bit wide time_t
834 --SSS */
835 uint32 logon_time,
836 logoff_time,
837 kickoff_time,
838 bad_password_time,
839 pass_last_set_time,
840 pass_can_change_time,
841 pass_must_change_time;
842 char *username = NULL;
843 char *domain = NULL;
844 char *nt_username = NULL;
845 char *dir_drive = NULL;
846 char *unknown_str = NULL;
847 char *munged_dial = NULL;
848 char *fullname = NULL;
849 char *homedir = NULL;
850 char *logon_script = NULL;
851 char *profile_path = NULL;
852 char *acct_desc = NULL;
853 char *workstations = NULL;
854 uint32 username_len, domain_len, nt_username_len,
855 dir_drive_len, unknown_str_len, munged_dial_len,
856 fullname_len, homedir_len, logon_script_len,
857 profile_path_len, acct_desc_len, workstations_len;
858
859 uint32 user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
860 uint16 logon_divs;
861 uint16 bad_password_count, logon_count;
862 uint8 *hours = NULL;
863 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
864 uint32 len = 0;
865 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
866 uint32 pwHistLen = 0;
867 bool ret = True;
868 fstring tmp_string;
869 bool expand_explicit = lp_passdb_expand_explicit();
870
871 if(sampass == NULL || buf == NULL) {
872 DEBUG(0, ("init_sam_from_buffer_v3: NULL parameters found!\n"));
873 return False;
874 }
875
876 /* TDB_FORMAT_STRING_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
877
878 /* unpack the buffer into variables */
879 len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING_V3,
880 &logon_time, /* d */
881 &logoff_time, /* d */
882 &kickoff_time, /* d */
883 &bad_password_time, /* d */
884 &pass_last_set_time, /* d */
885 &pass_can_change_time, /* d */
886 &pass_must_change_time, /* d */
887 &username_len, &username, /* B */
888 &domain_len, &domain, /* B */
889 &nt_username_len, &nt_username, /* B */
890 &fullname_len, &fullname, /* B */
891 &homedir_len, &homedir, /* B */
892 &dir_drive_len, &dir_drive, /* B */
893 &logon_script_len, &logon_script, /* B */
894 &profile_path_len, &profile_path, /* B */
895 &acct_desc_len, &acct_desc, /* B */
896 &workstations_len, &workstations, /* B */
897 &unknown_str_len, &unknown_str, /* B */
898 &munged_dial_len, &munged_dial, /* B */
899 &user_rid, /* d */
900 &group_rid, /* d */
901 &lm_pw_len, &lm_pw_ptr, /* B */
902 &nt_pw_len, &nt_pw_ptr, /* B */
903 /* Change from V1 is addition of password history field. */
904 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
905 /* Change from V2 is the uint32 acb_mask */
906 &acct_ctrl, /* d */
907 /* Also "remove_me" field was removed. */
908 &logon_divs, /* w */
909 &hours_len, /* d */
910 &hourslen, &hours, /* B */
911 &bad_password_count, /* w */
912 &logon_count, /* w */
913 &unknown_6); /* d */
914
915 if (len == (uint32) -1) {
916 ret = False;
917 goto done;
918 }
919
920 pdb_set_logon_time(sampass, convert_uint32_to_time_t(logon_time), PDB_SET);
921 pdb_set_logoff_time(sampass, convert_uint32_to_time_t(logoff_time), PDB_SET);
922 pdb_set_kickoff_time(sampass, convert_uint32_to_time_t(kickoff_time), PDB_SET);
923 pdb_set_bad_password_time(sampass, convert_uint32_to_time_t(bad_password_time), PDB_SET);
924 pdb_set_pass_can_change_time(sampass, convert_uint32_to_time_t(pass_can_change_time), PDB_SET);
925 pdb_set_pass_must_change_time(sampass, convert_uint32_to_time_t(pass_must_change_time), PDB_SET);
926 pdb_set_pass_last_set_time(sampass, convert_uint32_to_time_t(pass_last_set_time), PDB_SET);
927
928 pdb_set_username(sampass, username, PDB_SET);
929 pdb_set_domain(sampass, domain, PDB_SET);
930 pdb_set_nt_username(sampass, nt_username, PDB_SET);
931 pdb_set_fullname(sampass, fullname, PDB_SET);
932
933 if (homedir) {
934 fstrcpy( tmp_string, homedir );
935 if (expand_explicit) {
936 standard_sub_basic( username, domain, tmp_string,
937 sizeof(tmp_string) );
938 }
939 pdb_set_homedir(sampass, tmp_string, PDB_SET);
940 }
941 else {
942 pdb_set_homedir(sampass,
943 talloc_sub_basic(sampass, username, domain,
944 lp_logon_home()),
945 PDB_DEFAULT);
946 }
947
948 if (dir_drive)
949 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
950 else
951 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
952
953 if (logon_script) {
954 fstrcpy( tmp_string, logon_script );
955 if (expand_explicit) {
956 standard_sub_basic( username, domain, tmp_string,
957 sizeof(tmp_string) );
958 }
959 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
960 }
961 else {
962 pdb_set_logon_script(sampass,
963 talloc_sub_basic(sampass, username, domain,
964 lp_logon_script()),
965 PDB_DEFAULT);
966 }
967
968 if (profile_path) {
969 fstrcpy( tmp_string, profile_path );
970 if (expand_explicit) {
971 standard_sub_basic( username, domain, tmp_string,
972 sizeof(tmp_string) );
973 }
974 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
975 }
976 else {
977 pdb_set_profile_path(sampass,
978 talloc_sub_basic(sampass, username, domain, lp_logon_path()),
979 PDB_DEFAULT);
980 }
981
982 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
983 pdb_set_workstations(sampass, workstations, PDB_SET);
984 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
985
986 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
987 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
988 ret = False;
989 goto done;
990 }
991 }
992
993 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
994 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
995 ret = False;
996 goto done;
997 }
998 }
999
1000 pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1001 if (pwHistLen) {
1002 uint8 *pw_hist = (uint8 *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1003 if (!pw_hist) {
1004 ret = False;
1005 goto done;
1006 }
1007 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1008 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1009 int i;
1010 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1011 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1012 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1013 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1014 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1015 PW_HISTORY_ENTRY_LEN);
1016 }
1017 }
1018 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1019 SAFE_FREE(pw_hist);
1020 ret = False;
1021 goto done;
1022 }
1023 SAFE_FREE(pw_hist);
1024 } else {
1025 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1026 }
1027
1028 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1029 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1030 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1031 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1032 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1033 /* Change from V2 is the uint32 acct_ctrl */
1034 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1035 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1036 pdb_set_hours(sampass, hours, PDB_SET);
1037
1038 done:
1039
1040 SAFE_FREE(username);
1041 SAFE_FREE(domain);
1042 SAFE_FREE(nt_username);
1043 SAFE_FREE(fullname);
1044 SAFE_FREE(homedir);
1045 SAFE_FREE(dir_drive);
1046 SAFE_FREE(logon_script);
1047 SAFE_FREE(profile_path);
1048 SAFE_FREE(acct_desc);
1049 SAFE_FREE(workstations);
1050 SAFE_FREE(munged_dial);
1051 SAFE_FREE(unknown_str);
1052 SAFE_FREE(lm_pw_ptr);
1053 SAFE_FREE(nt_pw_ptr);
1054 SAFE_FREE(nt_pw_hist_ptr);
1055 SAFE_FREE(hours);
1056
1057 return ret;
1058 }
1059
1060 /*********************************************************************
1061 *********************************************************************/
1062
1063 uint32 init_buffer_from_sam_v3 (uint8 **buf, struct samu *sampass, bool size_only)
1064 {
1065 size_t len, buflen;
1066
1067 /* times are stored as 32bit integer
1068 take care on system with 64bit wide time_t
1069 --SSS */
1070 uint32 logon_time,
1071 logoff_time,
1072 kickoff_time,
1073 bad_password_time,
1074 pass_last_set_time,
1075 pass_can_change_time,
1076 pass_must_change_time;
1077
1078 uint32 user_rid, group_rid;
1079
1080 const char *username;
1081 const char *domain;
1082 const char *nt_username;
1083 const char *dir_drive;
1084 const char *unknown_str;
1085 const char *munged_dial;
1086 const char *fullname;
1087 const char *homedir;
1088 const char *logon_script;
1089 const char *profile_path;
1090 const char *acct_desc;
1091 const char *workstations;
1092 uint32 username_len, domain_len, nt_username_len,
1093 dir_drive_len, unknown_str_len, munged_dial_len,
1094 fullname_len, homedir_len, logon_script_len,
1095 profile_path_len, acct_desc_len, workstations_len;
1096
1097 const uint8 *lm_pw;
1098 const uint8 *nt_pw;
1099 const uint8 *nt_pw_hist;
1100 uint32 lm_pw_len = 16;
1101 uint32 nt_pw_len = 16;
1102 uint32 nt_pw_hist_len;
1103 uint32 pwHistLen = 0;
1104
1105 *buf = NULL;
1106 buflen = 0;
1107
1108 logon_time = convert_time_t_to_uint32(pdb_get_logon_time(sampass));
1109 logoff_time = convert_time_t_to_uint32(pdb_get_logoff_time(sampass));
1110 kickoff_time = convert_time_t_to_uint32(pdb_get_kickoff_time(sampass));
1111 bad_password_time = convert_time_t_to_uint32(pdb_get_bad_password_time(sampass));
1112 pass_can_change_time = convert_time_t_to_uint32(pdb_get_pass_can_change_time_noncalc(sampass));
1113 pass_must_change_time = convert_time_t_to_uint32(pdb_get_pass_must_change_time(sampass));
1114 pass_last_set_time = convert_time_t_to_uint32(pdb_get_pass_last_set_time(sampass));
1115
1116 user_rid = pdb_get_user_rid(sampass);
1117 group_rid = pdb_get_group_rid(sampass);
1118
1119 username = pdb_get_username(sampass);
1120 if (username) {
1121 username_len = strlen(username) +1;
1122 } else {
1123 username_len = 0;
1124 }
1125
1126 domain = pdb_get_domain(sampass);
1127 if (domain) {
1128 domain_len = strlen(domain) +1;
1129 } else {
1130 domain_len = 0;
1131 }
1132
1133 nt_username = pdb_get_nt_username(sampass);
1134 if (nt_username) {
1135 nt_username_len = strlen(nt_username) +1;
1136 } else {
1137 nt_username_len = 0;
1138 }
1139
1140 fullname = pdb_get_fullname(sampass);
1141 if (fullname) {
1142 fullname_len = strlen(fullname) +1;
1143 } else {
1144 fullname_len = 0;
1145 }
1146
1147 /*
1148 * Only updates fields which have been set (not defaults from smb.conf)
1149 */
1150
1151 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1152 dir_drive = pdb_get_dir_drive(sampass);
1153 } else {
1154 dir_drive = NULL;
1155 }
1156 if (dir_drive) {
1157 dir_drive_len = strlen(dir_drive) +1;
1158 } else {
1159 dir_drive_len = 0;
1160 }
1161
1162 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1163 homedir = pdb_get_homedir(sampass);
1164 } else {
1165 homedir = NULL;
1166 }
1167 if (homedir) {
1168 homedir_len = strlen(homedir) +1;
1169 } else {
1170 homedir_len = 0;
1171 }
1172
1173 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1174 logon_script = pdb_get_logon_script(sampass);
1175 } else {
1176 logon_script = NULL;
1177 }
1178 if (logon_script) {
1179 logon_script_len = strlen(logon_script) +1;
1180 } else {
1181 logon_script_len = 0;
1182 }
1183
1184 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1185 profile_path = pdb_get_profile_path(sampass);
1186 } else {
1187 profile_path = NULL;
1188 }
1189 if (profile_path) {
1190 profile_path_len = strlen(profile_path) +1;
1191 } else {
1192 profile_path_len = 0;
1193 }
1194
1195 lm_pw = pdb_get_lanman_passwd(sampass);
1196 if (!lm_pw) {
1197 lm_pw_len = 0;
1198 }
1199
1200 nt_pw = pdb_get_nt_passwd(sampass);
1201 if (!nt_pw) {
1202 nt_pw_len = 0;
1203 }
1204
1205 pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1206 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
1207 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1208 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1209 } else {
1210 nt_pw_hist_len = 0;
1211 }
1212
1213 acct_desc = pdb_get_acct_desc(sampass);
1214 if (acct_desc) {
1215 acct_desc_len = strlen(acct_desc) +1;
1216 } else {
1217 acct_desc_len = 0;
1218 }
1219
1220 workstations = pdb_get_workstations(sampass);
1221 if (workstations) {
1222 workstations_len = strlen(workstations) +1;
1223 } else {
1224 workstations_len = 0;
1225 }
1226
1227 unknown_str = NULL;
1228 unknown_str_len = 0;
1229
1230 munged_dial = pdb_get_munged_dial(sampass);
1231 if (munged_dial) {
1232 munged_dial_len = strlen(munged_dial) +1;
1233 } else {
1234 munged_dial_len = 0;
1235 }
1236
1237 /* TDB_FORMAT_STRING_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1238
1239 /* one time to get the size needed */
1240 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V3,
1241 logon_time, /* d */
1242 logoff_time, /* d */
1243 kickoff_time, /* d */
1244 bad_password_time, /* d */
1245 pass_last_set_time, /* d */
1246 pass_can_change_time, /* d */
1247 pass_must_change_time, /* d */
1248 username_len, username, /* B */
1249 domain_len, domain, /* B */
1250 nt_username_len, nt_username, /* B */
1251 fullname_len, fullname, /* B */
1252 homedir_len, homedir, /* B */
1253 dir_drive_len, dir_drive, /* B */
1254 logon_script_len, logon_script, /* B */
1255 profile_path_len, profile_path, /* B */
1256 acct_desc_len, acct_desc, /* B */
1257 workstations_len, workstations, /* B */
1258 unknown_str_len, unknown_str, /* B */
1259 munged_dial_len, munged_dial, /* B */
1260 user_rid, /* d */
1261 group_rid, /* d */
1262 lm_pw_len, lm_pw, /* B */
1263 nt_pw_len, nt_pw, /* B */
1264 nt_pw_hist_len, nt_pw_hist, /* B */
1265 pdb_get_acct_ctrl(sampass), /* d */
1266 pdb_get_logon_divs(sampass), /* w */
1267 pdb_get_hours_len(sampass), /* d */
1268 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1269 pdb_get_bad_password_count(sampass), /* w */
1270 pdb_get_logon_count(sampass), /* w */
1271 pdb_get_unknown_6(sampass)); /* d */
1272
1273 if (size_only) {
1274 return buflen;
1275 }
1276
1277 /* malloc the space needed */
1278 if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
1279 DEBUG(0,("init_buffer_from_sam_v3: Unable to malloc() memory for buffer!\n"));
1280 return (-1);
1281 }
1282
1283 /* now for the real call to tdb_pack() */
1284 buflen = tdb_pack(*buf, len, TDB_FORMAT_STRING_V3,
1285 logon_time, /* d */
1286 logoff_time, /* d */
1287 kickoff_time, /* d */
1288 bad_password_time, /* d */
1289 pass_last_set_time, /* d */
1290 pass_can_change_time, /* d */
1291 pass_must_change_time, /* d */
1292 username_len, username, /* B */
1293 domain_len, domain, /* B */
1294 nt_username_len, nt_username, /* B */
1295 fullname_len, fullname, /* B */
1296 homedir_len, homedir, /* B */
1297 dir_drive_len, dir_drive, /* B */
1298 logon_script_len, logon_script, /* B */
1299 profile_path_len, profile_path, /* B */
1300 acct_desc_len, acct_desc, /* B */
1301 workstations_len, workstations, /* B */
1302 unknown_str_len, unknown_str, /* B */
1303 munged_dial_len, munged_dial, /* B */
1304 user_rid, /* d */
1305 group_rid, /* d */
1306 lm_pw_len, lm_pw, /* B */
1307 nt_pw_len, nt_pw, /* B */
1308 nt_pw_hist_len, nt_pw_hist, /* B */
1309 pdb_get_acct_ctrl(sampass), /* d */
1310 pdb_get_logon_divs(sampass), /* w */
1311 pdb_get_hours_len(sampass), /* d */
1312 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1313 pdb_get_bad_password_count(sampass), /* w */
1314 pdb_get_logon_count(sampass), /* w */
1315 pdb_get_unknown_6(sampass)); /* d */
1316
1317 /* check to make sure we got it correct */
1318 if (buflen != len) {
1319 DEBUG(0, ("init_buffer_from_sam_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
1320 (unsigned long)buflen, (unsigned long)len));
1321 /* error */
1322 SAFE_FREE (*buf);
1323 return (-1);
1324 }
1325
1326 return (buflen);
1327 }
1328
1329
1330 /*********************************************************************
1331 *********************************************************************/
1332
1333 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
1334 {
1335 uint8 *buf = NULL;
1336 int len;
1337
1338 len = init_buffer_from_sam_v3(&buf, src, False);
1339 if (len == -1 || !buf) {
1340 SAFE_FREE(buf);
1341 return False;
1342 }
1343
1344 if (!init_sam_from_buffer_v3( dst, buf, len )) {
1345 free(buf);
1346 return False;
1347 }
1348
1349 dst->methods = src->methods;
1350
1351 if ( src->unix_pw ) {
1352 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
1353 if (!dst->unix_pw) {
1354 free(buf);
1355 return False;
1356 }
1357 }
1358
1359 free(buf);
1360 return True;
1361 }
1362
1363 /*********************************************************************
1364 Update the bad password count checking the AP_RESET_COUNT_TIME
1365 *********************************************************************/
1366
1367 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
1368 {
1369 time_t LastBadPassword;
1370 uint16 BadPasswordCount;
1371 uint32 resettime;
1372 bool res;
1373
1374 BadPasswordCount = pdb_get_bad_password_count(sampass);
1375 if (!BadPasswordCount) {
1376 DEBUG(9, ("No bad password attempts.\n"));
1377 return True;
1378 }
1379
1380 become_root();
1381 res = pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime);
1382 unbecome_root();
1383
1384 if (!res) {
1385 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
1386 return False;
1387 }
1388
1389 /* First, check if there is a reset time to compare */
1390 if ((resettime == (uint32) -1) || (resettime == 0)) {
1391 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
1392 return True;
1393 }
1394
1395 LastBadPassword = pdb_get_bad_password_time(sampass);
1396 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
1397 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
1398 if (time(NULL) > (LastBadPassword + convert_uint32_to_time_t(resettime)*60)){
1399 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1400 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1401 if (updated) {
1402 *updated = True;
1403 }
1404 }
1405
1406 return True;
1407 }
1408
1409 /*********************************************************************
1410 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
1411 *********************************************************************/
1412
1413 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
1414 {
1415 uint32 duration;
1416 time_t LastBadPassword;
1417 bool res;
1418
1419 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
1420 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
1421 pdb_get_username(sampass)));
1422 return True;
1423 }
1424
1425 become_root();
1426 res = pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration);
1427 unbecome_root();
1428
1429 if (!res) {
1430 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
1431 return False;
1432 }
1433
1434 /* First, check if there is a duration to compare */
1435 if ((duration == (uint32) -1) || (duration == 0)) {
1436 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
1437 return True;
1438 }
1439
1440 LastBadPassword = pdb_get_bad_password_time(sampass);
1441 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
1442 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
1443
1444 if (LastBadPassword == (time_t)0) {
1445 DEBUG(1,("pdb_update_autolock_flag: Account %s "
1446 "administratively locked out with no bad password "
1447 "time. Leaving locked out.\n",
1448 pdb_get_username(sampass) ));
1449 return True;
1450 }
1451
1452 if ((time(NULL) > (LastBadPassword + convert_uint32_to_time_t(duration) * 60))) {
1453 pdb_set_acct_ctrl(sampass,
1454 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
1455 PDB_CHANGED);
1456 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1457 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1458 if (updated) {
1459 *updated = True;
1460 }
1461 }
1462
1463 return True;
1464 }
1465
1466 /*********************************************************************
1467 Increment the bad_password_count
1468 *********************************************************************/
1469
1470 bool pdb_increment_bad_password_count(struct samu *sampass)
1471 {
1472 uint32 account_policy_lockout;
1473 bool autolock_updated = False, badpw_updated = False;
1474 bool ret;
1475
1476 /* Retrieve the account lockout policy */
1477 become_root();
1478 ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
1479 unbecome_root();
1480 if ( !ret ) {
1481 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
1482 return False;
1483 }
1484
1485 /* If there is no policy, we don't need to continue checking */
1486 if (!account_policy_lockout) {
1487 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
1488 return True;
1489 }
1490
1491 /* Check if the autolock needs to be cleared */
1492 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
1493 return False;
1494
1495 /* Check if the badpw count needs to be reset */
1496 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
1497 return False;
1498
1499 /*
1500 Ok, now we can assume that any resetting that needs to be
1501 done has been done, and just get on with incrementing
1502 and autolocking if necessary
1503 */
1504
1505 pdb_set_bad_password_count(sampass,
1506 pdb_get_bad_password_count(sampass)+1,
1507 PDB_CHANGED);
1508 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
1509
1510
1511 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
1512 return True;
1513
1514 if (!pdb_set_acct_ctrl(sampass,
1515 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
1516 PDB_CHANGED)) {
1517 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
1518 return False;
1519 }
1520
1521 return True;
1522 }
1523
1524
1525 /*******************************************************************
1526 Wrapper around retrieving the trust account password.
1527 appropriate account name is stored in account_name.
1528 *******************************************************************/
1529
1530 bool get_trust_pw(const char *domain, uint8 ret_pwd[16],
1531 const char **account_name, uint32 *channel)
1532 {
1533 DOM_SID sid;
1534 char *pwd;
1535 time_t last_set_time;
1536
1537 /* if we are a DC and this is not our domain, then lookup an account
1538 for the domain trust */
1539
1540 if (IS_DC && !strequal(domain, lp_workgroup()) &&
1541 lp_allow_trusted_domains())
1542 {
1543 if (!pdb_get_trusteddom_pw(domain, &pwd, &sid, &last_set_time))
1544 {
1545 DEBUG(0, ("get_trust_pw: could not fetch trust "
1546 "account password for trusted domain %s\n",
1547 domain));
1548 return False;
1549 }
1550
1551 *channel = SEC_CHAN_DOMAIN;
1552 E_md4hash(pwd, ret_pwd);
1553 SAFE_FREE(pwd);
1554
1555 if (account_name != NULL) {
1556 *account_name = lp_workgroup();
1557 }
1558
1559 return True;
1560 }
1561
1562 /* Just get the account for the requested domain. In the future this
1563 * might also cover to be member of more than one domain. */
1564
1565 if (secrets_fetch_trust_account_password(domain, ret_pwd,
1566 &last_set_time, channel))
1567 {
1568 if (account_name != NULL) {
1569 *account_name = global_myname();
1570 }
1571
1572 return True;
1573 }
1574
1575 DEBUG(5, ("get_trust_pw: could not fetch trust account "
1576 "password for domain %s\n", domain));
1577 return False;
1578 }
1579
reg import