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test3: Fix usage check for test_sharesec.sh
[Samba.git] / source3 / passdb / passdb.c
blob8ed1bafcea32083c2a1dabf2ade26f00310c9330
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 #include "passdb.h"
27 #include "system/passwd.h"
28 #include "../libcli/auth/libcli_auth.h"
29 #include "secrets.h"
30 #include "../libcli/security/security.h"
31 #include "../lib/util/util_pw.h"
32 #include "util_tdb.h"
33 #include "auth/credentials/credentials.h"
34 #include "lib/param/param.h"
35
36 #undef DBGC_CLASS
37 #define DBGC_CLASS DBGC_PASSDB
38
39 /**********************************************************************
40 ***********************************************************************/
41
42 static int samu_destroy(struct samu *user)
43 {
44 data_blob_clear_free( &user->lm_pw );
45 data_blob_clear_free( &user->nt_pw );
46
47 if ( user->plaintext_pw )
48 memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
49
50 return 0;
51 }
52
53 /**********************************************************************
54 generate a new struct samuser
55 ***********************************************************************/
56
57 struct samu *samu_new( TALLOC_CTX *ctx )
58 {
59 struct samu *user;
60
61 if ( !(user = talloc_zero( ctx, struct samu )) ) {
62 DEBUG(0,("samuser_new: Talloc failed!\n"));
63 return NULL;
64 }
65
66 talloc_set_destructor( user, samu_destroy );
67
68 /* no initial methods */
69
70 user->methods = NULL;
71
72 /* Don't change these timestamp settings without a good reason.
73 They are important for NT member server compatibility. */
74
75 user->logon_time = (time_t)0;
76 user->pass_last_set_time = (time_t)0;
77 user->pass_can_change_time = (time_t)0;
78 user->logoff_time = get_time_t_max();
79 user->kickoff_time = get_time_t_max();
80 user->fields_present = 0x00ffffff;
81 user->logon_divs = 168; /* hours per week */
82 user->hours_len = 21; /* 21 times 8 bits = 168 */
83 memset(user->hours, 0xff, user->hours_len); /* available at all hours */
84 user->bad_password_count = 0;
85 user->logon_count = 0;
86 user->unknown_6 = 0x000004ec; /* don't know */
87
88 /* Some parts of samba strlen their pdb_get...() returns,
89 so this keeps the interface unchanged for now. */
90
91 user->username = "";
92 user->domain = "";
93 user->nt_username = "";
94 user->full_name = "";
95 user->home_dir = "";
96 user->logon_script = "";
97 user->profile_path = "";
98 user->acct_desc = "";
99 user->workstations = "";
100 user->comment = "";
101 user->munged_dial = "";
102
103 user->plaintext_pw = NULL;
104
105 /* Unless we know otherwise have a Account Control Bit
106 value of 'normal user'. This helps User Manager, which
107 asks for a filtered list of users. */
108
109 user->acct_ctrl = ACB_NORMAL;
110
111 return user;
112 }
113
114 static int count_commas(const char *str)
115 {
116 int num_commas = 0;
117 const char *comma = str;
118
119 while ((comma = strchr(comma, ',')) != NULL) {
120 comma += 1;
121 num_commas += 1;
122 }
123 return num_commas;
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 pdb_methods *methods,
133 struct samu *user, const struct passwd *pwd, bool create)
134 {
135 const char *guest_account = lp_guest_account();
136 const char *domain = lp_netbios_name();
137 char *fullname;
138 uint32_t urid;
139
140 if ( !pwd ) {
141 return NT_STATUS_NO_SUCH_USER;
142 }
143
144 /* Basic properties based upon the Unix account information */
145
146 pdb_set_username(user, pwd->pw_name, PDB_SET);
147
148 fullname = NULL;
149
150 if (count_commas(pwd->pw_gecos) == 3) {
151 /*
152 * Heuristic: This seems to be a gecos field that has been
153 * edited by chfn(1). Only use the part before the first
154 * comma. Fixes bug 5198.
155 */
156 fullname = talloc_strndup(
157 talloc_tos(), pwd->pw_gecos,
158 strchr(pwd->pw_gecos, ',') - pwd->pw_gecos);
159 }
160
161 if (fullname != NULL) {
162 pdb_set_fullname(user, fullname, PDB_SET);
163 } else {
164 pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
165 }
166 TALLOC_FREE(fullname);
167
168 pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
169 #if 0
170 /* This can lead to a primary group of S-1-22-2-XX which
171 will be rejected by other parts of the Samba code.
172 Rely on pdb_get_group_sid() to "Do The Right Thing" (TM)
173 --jerry */
174
175 gid_to_sid(&group_sid, pwd->pw_gid);
176 pdb_set_group_sid(user, &group_sid, PDB_SET);
177 #endif
178
179 /* save the password structure for later use */
180
181 user->unix_pw = tcopy_passwd( user, pwd );
182
183 /* Special case for the guest account which must have a RID of 501 */
184
185 if ( strequal( pwd->pw_name, guest_account ) ) {
186 if ( !pdb_set_user_sid_from_rid(user, DOMAIN_RID_GUEST, PDB_DEFAULT)) {
187 return NT_STATUS_NO_SUCH_USER;
188 }
189 return NT_STATUS_OK;
190 }
191
192 /* Non-guest accounts...Check for a workstation or user account */
193
194 if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
195 /* workstation */
196
197 if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
198 DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n",
199 pwd->pw_name));
200 return NT_STATUS_INVALID_COMPUTER_NAME;
201 }
202 }
203 else {
204 /* user */
205
206 if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
207 DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n",
208 pwd->pw_name));
209 return NT_STATUS_INVALID_ACCOUNT_NAME;
210 }
211
212 /* set some basic attributes */
213
214 pdb_set_profile_path(user, talloc_sub_specified(user,
215 lp_logon_path(), pwd->pw_name, NULL, domain, pwd->pw_uid, pwd->pw_gid),
216 PDB_DEFAULT);
217 pdb_set_homedir(user, talloc_sub_specified(user,
218 lp_logon_home(), pwd->pw_name, NULL, domain, pwd->pw_uid, pwd->pw_gid),
219 PDB_DEFAULT);
220 pdb_set_dir_drive(user, talloc_sub_specified(user,
221 lp_logon_drive(), pwd->pw_name, NULL, domain, pwd->pw_uid, pwd->pw_gid),
222 PDB_DEFAULT);
223 pdb_set_logon_script(user, talloc_sub_specified(user,
224 lp_logon_script(), pwd->pw_name, NULL, domain, pwd->pw_uid, pwd->pw_gid),
225 PDB_DEFAULT);
226 }
227
228 /* Now deal with the user SID. If we have a backend that can generate
229 RIDs, then do so. But sometimes the caller just wanted a structure
230 initialized and will fill in these fields later (such as from a
231 netr_SamInfo3 structure) */
232
233 if ( create && (methods->capabilities(methods) & PDB_CAP_STORE_RIDS)) {
234 uint32_t user_rid;
235 struct dom_sid user_sid;
236
237 if ( !methods->new_rid(methods, &user_rid) ) {
238 DEBUG(3, ("Could not allocate a new RID\n"));
239 return NT_STATUS_ACCESS_DENIED;
240 }
241
242 sid_compose(&user_sid, get_global_sam_sid(), user_rid);
243
244 if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
245 DEBUG(3, ("pdb_set_user_sid failed\n"));
246 return NT_STATUS_INTERNAL_ERROR;
247 }
248
249 return NT_STATUS_OK;
250 }
251
252 /* generate a SID for the user with the RID algorithm */
253
254 urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
255
256 if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
257 return NT_STATUS_INTERNAL_ERROR;
258 }
259
260 return NT_STATUS_OK;
261 }
262
263 /********************************************************************
264 Set the Unix user attributes
265 ********************************************************************/
266
267 NTSTATUS samu_set_unix(struct samu *user, const struct passwd *pwd)
268 {
269 return samu_set_unix_internal( NULL, user, pwd, False );
270 }
271
272 NTSTATUS samu_alloc_rid_unix(struct pdb_methods *methods,
273 struct samu *user, const struct passwd *pwd)
274 {
275 return samu_set_unix_internal( methods, user, pwd, True );
276 }
277
278 /**********************************************************
279 Encode the account control bits into a string.
280 length = length of string to encode into (including terminating
281 null). length *MUST BE MORE THAN 2* !
282 **********************************************************/
283
284 char *pdb_encode_acct_ctrl(uint32_t acct_ctrl, size_t length)
285 {
286 fstring acct_str;
287 char *result;
288
289 size_t i = 0;
290
291 SMB_ASSERT(length <= sizeof(acct_str));
292
293 acct_str[i++] = '[';
294
295 if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
296 if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
297 if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
298 if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
299 if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
300 if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
301 if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
302 if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
303 if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
304 if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
305 if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
306
307 for ( ; i < length - 2 ; i++ )
308 acct_str[i] = ' ';
309
310 i = length - 2;
311 acct_str[i++] = ']';
312 acct_str[i++] = '\0';
313
314 result = talloc_strdup(talloc_tos(), acct_str);
315 SMB_ASSERT(result != NULL);
316 return result;
317 }
318
319 /**********************************************************
320 Decode the account control bits from a string.
321 **********************************************************/
322
323 uint32_t pdb_decode_acct_ctrl(const char *p)
324 {
325 uint32_t acct_ctrl = 0;
326 bool finished = false;
327
328 /*
329 * Check if the account type bits have been encoded after the
330 * NT password (in the form [NDHTUWSLXI]).
331 */
332
333 if (*p != '[')
334 return 0;
335
336 for (p++; *p && !finished; p++) {
337 switch (*p) {
338 case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
339 case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
340 case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
341 case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
342 case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
343 case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
344 case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
345 case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
346 case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
347 case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
348 case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
349 case ' ': { break; }
350 case ':':
351 case '\n':
352 case '\0':
353 case ']':
354 default: { finished = true; }
355 }
356 }
357
358 return acct_ctrl;
359 }
360
361 /*************************************************************
362 Routine to set 32 hex password characters from a 16 byte array.
363 **************************************************************/
364
365 void pdb_sethexpwd(char p[33], const unsigned char *pwd, uint32_t acct_ctrl)
366 {
367 if (pwd != NULL) {
368 hex_encode_buf(p, pwd, 16);
369 } else {
370 if (acct_ctrl & ACB_PWNOTREQ)
371 strlcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
372 else
373 strlcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
374 }
375 }
376
377 /*************************************************************
378 Routine to get the 32 hex characters and turn them
379 into a 16 byte array.
380 **************************************************************/
381
382 bool pdb_gethexpwd(const char *p, unsigned char *pwd)
383 {
384 int i;
385 unsigned char lonybble, hinybble;
386 const char *hexchars = "0123456789ABCDEF";
387 char *p1, *p2;
388
389 if (!p)
390 return false;
391
392 for (i = 0; i < 32; i += 2) {
393 hinybble = toupper_m(p[i]);
394 lonybble = toupper_m(p[i + 1]);
395
396 p1 = strchr(hexchars, hinybble);
397 p2 = strchr(hexchars, lonybble);
398
399 if (!p1 || !p2)
400 return false;
401
402 hinybble = PTR_DIFF(p1, hexchars);
403 lonybble = PTR_DIFF(p2, hexchars);
404
405 pwd[i / 2] = (hinybble << 4) | lonybble;
406 }
407 return true;
408 }
409
410 /*************************************************************
411 Routine to set 42 hex hours characters from a 21 byte array.
412 **************************************************************/
413
414 void pdb_sethexhours(char *p, const unsigned char *hours)
415 {
416 if (hours != NULL) {
417 hex_encode_buf(p, hours, 21);
418 } else {
419 strlcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 44);
420 }
421 }
422
423 /*************************************************************
424 Routine to get the 42 hex characters and turn them
425 into a 21 byte array.
426 **************************************************************/
427
428 bool pdb_gethexhours(const char *p, unsigned char *hours)
429 {
430 int i;
431 unsigned char lonybble, hinybble;
432 const char *hexchars = "0123456789ABCDEF";
433 char *p1, *p2;
434
435 if (!p) {
436 return (False);
437 }
438
439 for (i = 0; i < 42; i += 2) {
440 hinybble = toupper_m(p[i]);
441 lonybble = toupper_m(p[i + 1]);
442
443 p1 = strchr(hexchars, hinybble);
444 p2 = strchr(hexchars, lonybble);
445
446 if (!p1 || !p2) {
447 return (False);
448 }
449
450 hinybble = PTR_DIFF(p1, hexchars);
451 lonybble = PTR_DIFF(p2, hexchars);
452
453 hours[i / 2] = (hinybble << 4) | lonybble;
454 }
455 return (True);
456 }
457
458 /********************************************************************
459 ********************************************************************/
460
461 int algorithmic_rid_base(void)
462 {
463 int rid_offset;
464
465 rid_offset = lp_algorithmic_rid_base();
466
467 if (rid_offset < BASE_RID) {
468 /* Try to prevent admin foot-shooting, we can't put algorithmic
469 rids below 1000, that's the 'well known RIDs' on NT */
470 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
471 rid_offset = BASE_RID;
472 }
473 if (rid_offset & 1) {
474 DEBUG(0, ("algorithmic rid base must be even\n"));
475 rid_offset += 1;
476 }
477 return rid_offset;
478 }
479
480 /*******************************************************************
481 Converts NT user RID to a UNIX uid.
482 ********************************************************************/
483
484 uid_t algorithmic_pdb_user_rid_to_uid(uint32_t user_rid)
485 {
486 int rid_offset = algorithmic_rid_base();
487 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
488 }
489
490 uid_t max_algorithmic_uid(void)
491 {
492 return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
493 }
494
495 /*******************************************************************
496 converts UNIX uid to an NT User RID.
497 ********************************************************************/
498
499 uint32_t algorithmic_pdb_uid_to_user_rid(uid_t uid)
500 {
501 int rid_offset = algorithmic_rid_base();
502 return (((((uint32_t)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
503 }
504
505 /*******************************************************************
506 Converts NT group RID to a UNIX gid.
507 ********************************************************************/
508
509 gid_t pdb_group_rid_to_gid(uint32_t group_rid)
510 {
511 int rid_offset = algorithmic_rid_base();
512 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
513 }
514
515 gid_t max_algorithmic_gid(void)
516 {
517 return pdb_group_rid_to_gid(0xffffffff);
518 }
519
520 /*******************************************************************
521 converts NT Group RID to a UNIX uid.
522
523 warning: you must not call that function only
524 you must do a call to the group mapping first.
525 there is not anymore a direct link between the gid and the rid.
526 ********************************************************************/
527
528 uint32_t algorithmic_pdb_gid_to_group_rid(gid_t gid)
529 {
530 int rid_offset = algorithmic_rid_base();
531 return (((((uint32_t)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
532 }
533
534 /*******************************************************************
535 Decides if a RID is a well known RID.
536 ********************************************************************/
537
538 static bool rid_is_well_known(uint32_t rid)
539 {
540 /* Not using rid_offset here, because this is the actual
541 NT fixed value (1000) */
542
543 return (rid < BASE_RID);
544 }
545
546 /*******************************************************************
547 Decides if a RID is a user or group RID.
548 ********************************************************************/
549
550 bool algorithmic_pdb_rid_is_user(uint32_t rid)
551 {
552 if ( rid_is_well_known(rid) ) {
553 /*
554 * The only well known user RIDs are DOMAIN_RID_ADMINISTRATOR
555 * and DOMAIN_RID_GUEST.
556 */
557 if(rid == DOMAIN_RID_ADMINISTRATOR || rid == DOMAIN_RID_GUEST)
558 return True;
559 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
560 return True;
561 }
562 return False;
563 }
564
565 /*******************************************************************
566 Convert a name into a SID. Used in the lookup name rpc.
567 ********************************************************************/
568
569 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
570 enum lsa_SidType *type)
571 {
572 GROUP_MAP *map;
573 bool ret;
574
575 /* Windows treats "MACHINE\None" as a special name for
576 rid 513 on non-DCs. You cannot create a user or group
577 name "None" on Windows. You will get an error that
578 the group already exists. */
579
580 if ( strequal( name, "None" ) ) {
581 *rid = DOMAIN_RID_USERS;
582 *type = SID_NAME_DOM_GRP;
583
584 return True;
585 }
586
587 /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
588 * correctly in the case where foo also exists as a user. If the flag
589 * is set, don't look for users at all. */
590
591 if ((flags & LOOKUP_NAME_GROUP) == 0) {
592 struct samu *sam_account = NULL;
593 struct dom_sid user_sid;
594
595 if ( !(sam_account = samu_new( NULL )) ) {
596 return False;
597 }
598
599 become_root();
600 ret = pdb_getsampwnam(sam_account, name);
601 unbecome_root();
602
603 if (ret) {
604 sid_copy(&user_sid, pdb_get_user_sid(sam_account));
605 }
606
607 TALLOC_FREE(sam_account);
608
609 if (ret) {
610 if (!sid_check_is_in_our_sam(&user_sid)) {
611 struct dom_sid_buf buf;
612 DBG_ERR("User %s with invalid SID %s"
613 " in passdb\n",
614 name,
615 dom_sid_str_buf(&user_sid, &buf));
616 return False;
617 }
618
619 sid_peek_rid(&user_sid, rid);
620 *type = SID_NAME_USER;
621 return True;
622 }
623 }
624
625 /*
626 * Maybe it is a group ?
627 */
628
629 map = talloc_zero(NULL, GROUP_MAP);
630 if (!map) {
631 return false;
632 }
633
634 become_root();
635 ret = pdb_getgrnam(map, name);
636 unbecome_root();
637
638 if (!ret) {
639 TALLOC_FREE(map);
640 return False;
641 }
642
643 /* BUILTIN groups are looked up elsewhere */
644 if (!sid_check_is_in_our_sam(&map->sid)) {
645 struct dom_sid_buf buf;
646 DEBUG(10, ("Found group %s (%s) not in our domain -- "
647 "ignoring.\n",
648 name,
649 dom_sid_str_buf(&map->sid, &buf)));
650 TALLOC_FREE(map);
651 return False;
652 }
653
654 /* yes it's a mapped group */
655 sid_peek_rid(&map->sid, rid);
656 *type = map->sid_name_use;
657 TALLOC_FREE(map);
658 return True;
659 }
660
661 /*************************************************************
662 Change a password entry in the local passdb backend.
663
664 Assumptions:
665 - always called as root
666 - ignores the account type except when adding a new account
667 - will create/delete the unix account if the relative
668 add/delete user script is configured
669
670 *************************************************************/
671
672 NTSTATUS local_password_change(const char *user_name,
673 int local_flags,
674 const char *new_passwd,
675 char **pp_err_str,
676 char **pp_msg_str)
677 {
678 TALLOC_CTX *tosctx;
679 struct samu *sam_pass;
680 uint32_t acb;
681 uint32_t rid;
682 NTSTATUS result;
683 bool user_exists;
684 int ret = -1;
685
686 *pp_err_str = NULL;
687 *pp_msg_str = NULL;
688
689 tosctx = talloc_tos();
690
691 sam_pass = samu_new(tosctx);
692 if (!sam_pass) {
693 result = NT_STATUS_NO_MEMORY;
694 goto done;
695 }
696
697 /* Get the smb passwd entry for this user */
698 user_exists = pdb_getsampwnam(sam_pass, user_name);
699
700 /* Check delete first, we don't need to do anything else if we
701 * are going to delete the acocunt */
702 if (user_exists && (local_flags & LOCAL_DELETE_USER)) {
703
704 result = pdb_delete_user(tosctx, sam_pass);
705 if (!NT_STATUS_IS_OK(result)) {
706 ret = asprintf(pp_err_str,
707 "Failed to delete entry for user %s.\n",
708 user_name);
709 if (ret < 0) {
710 *pp_err_str = NULL;
711 }
712 result = NT_STATUS_UNSUCCESSFUL;
713 } else {
714 ret = asprintf(pp_msg_str,
715 "Deleted user %s.\n",
716 user_name);
717 if (ret < 0) {
718 *pp_msg_str = NULL;
719 }
720 }
721 goto done;
722 }
723
724 if (user_exists && (local_flags & LOCAL_ADD_USER)) {
725 /* the entry already existed */
726 local_flags &= ~LOCAL_ADD_USER;
727 }
728
729 if (!user_exists && !(local_flags & LOCAL_ADD_USER)) {
730 ret = asprintf(pp_err_str,
731 "Failed to find entry for user %s.\n",
732 user_name);
733 if (ret < 0) {
734 *pp_err_str = NULL;
735 }
736 result = NT_STATUS_NO_SUCH_USER;
737 goto done;
738 }
739
740 /* First thing add the new user if we are required to do so */
741 if (local_flags & LOCAL_ADD_USER) {
742
743 if (local_flags & LOCAL_TRUST_ACCOUNT) {
744 acb = ACB_WSTRUST;
745 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
746 acb = ACB_DOMTRUST;
747 } else {
748 acb = ACB_NORMAL;
749 }
750
751 result = pdb_create_user(tosctx, user_name, acb, &rid);
752 if (!NT_STATUS_IS_OK(result)) {
753 ret = asprintf(pp_err_str,
754 "Failed to add entry for user %s.\n",
755 user_name);
756 if (ret < 0) {
757 *pp_err_str = NULL;
758 }
759 result = NT_STATUS_UNSUCCESSFUL;
760 goto done;
761 }
762
763 sam_pass = samu_new(tosctx);
764 if (!sam_pass) {
765 result = NT_STATUS_NO_MEMORY;
766 goto done;
767 }
768
769 /* Now get back the smb passwd entry for this new user */
770 user_exists = pdb_getsampwnam(sam_pass, user_name);
771 if (!user_exists) {
772 ret = asprintf(pp_err_str,
773 "Failed to add entry for user %s.\n",
774 user_name);
775 if (ret < 0) {
776 *pp_err_str = NULL;
777 }
778 result = NT_STATUS_UNSUCCESSFUL;
779 goto done;
780 }
781 }
782
783 acb = pdb_get_acct_ctrl(sam_pass);
784
785 /*
786 * We are root - just write the new password
787 * and the valid last change time.
788 */
789 if ((local_flags & LOCAL_SET_NO_PASSWORD) && !(acb & ACB_PWNOTREQ)) {
790 acb |= ACB_PWNOTREQ;
791 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
792 ret = asprintf(pp_err_str,
793 "Failed to set 'no password required' "
794 "flag for user %s.\n", user_name);
795 if (ret < 0) {
796 *pp_err_str = NULL;
797 }
798 result = NT_STATUS_UNSUCCESSFUL;
799 goto done;
800 }
801 }
802
803 if (local_flags & LOCAL_SET_PASSWORD) {
804 /*
805 * If we're dealing with setting a completely empty user account
806 * ie. One with a password of 'XXXX', but not set disabled (like
807 * an account created from scratch) then if the old password was
808 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
809 * We remove that as we're giving this user their first password
810 * and the decision hasn't really been made to disable them (ie.
811 * don't create them disabled). JRA.
812 */
813 if ((pdb_get_lanman_passwd(sam_pass) == NULL) &&
814 (acb & ACB_DISABLED)) {
815 acb &= (~ACB_DISABLED);
816 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
817 ret = asprintf(pp_err_str,
818 "Failed to unset 'disabled' "
819 "flag for user %s.\n",
820 user_name);
821 if (ret < 0) {
822 *pp_err_str = NULL;
823 }
824 result = NT_STATUS_UNSUCCESSFUL;
825 goto done;
826 }
827 }
828
829 acb &= (~ACB_PWNOTREQ);
830 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
831 ret = asprintf(pp_err_str,
832 "Failed to unset 'no password required'"
833 " flag for user %s.\n", user_name);
834 if (ret < 0) {
835 *pp_err_str = NULL;
836 }
837 result = NT_STATUS_UNSUCCESSFUL;
838 goto done;
839 }
840
841 if (!pdb_set_plaintext_passwd(sam_pass, new_passwd)) {
842 ret = asprintf(pp_err_str,
843 "Failed to set password for "
844 "user %s.\n", user_name);
845 if (ret < 0) {
846 *pp_err_str = NULL;
847 }
848 result = NT_STATUS_UNSUCCESSFUL;
849 goto done;
850 }
851 }
852
853 if ((local_flags & LOCAL_DISABLE_USER) && !(acb & ACB_DISABLED)) {
854 acb |= ACB_DISABLED;
855 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
856 ret = asprintf(pp_err_str,
857 "Failed to set 'disabled' flag for "
858 "user %s.\n", user_name);
859 if (ret < 0) {
860 *pp_err_str = NULL;
861 }
862 result = NT_STATUS_UNSUCCESSFUL;
863 goto done;
864 }
865 }
866
867 if ((local_flags & LOCAL_ENABLE_USER) && (acb & ACB_DISABLED)) {
868 acb &= (~ACB_DISABLED);
869 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
870 ret = asprintf(pp_err_str,
871 "Failed to unset 'disabled' flag for "
872 "user %s.\n", user_name);
873 if (ret < 0) {
874 *pp_err_str = NULL;
875 }
876 result = NT_STATUS_UNSUCCESSFUL;
877 goto done;
878 }
879 }
880
881 /* now commit changes if any */
882 result = pdb_update_sam_account(sam_pass);
883 if (!NT_STATUS_IS_OK(result)) {
884 ret = asprintf(pp_err_str,
885 "Failed to modify entry for user %s.\n",
886 user_name);
887 if (ret < 0) {
888 *pp_err_str = NULL;
889 }
890 goto done;
891 }
892
893 if (local_flags & LOCAL_ADD_USER) {
894 ret = asprintf(pp_msg_str, "Added user %s.\n", user_name);
895 } else if (local_flags & LOCAL_DISABLE_USER) {
896 ret = asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
897 } else if (local_flags & LOCAL_ENABLE_USER) {
898 ret = asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
899 } else if (local_flags & LOCAL_SET_NO_PASSWORD) {
900 ret = asprintf(pp_msg_str,
901 "User %s password set to none.\n", user_name);
902 }
903
904 if (ret < 0) {
905 *pp_msg_str = NULL;
906 }
907
908 result = NT_STATUS_OK;
909
910 done:
911 TALLOC_FREE(sam_pass);
912 return result;
913 }
914
915 /**********************************************************************
916 Marshall/unmarshall struct samu structs.
917 *********************************************************************/
918
919 #define SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
920 #define SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
921 #define SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
922 #define SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
923 /* nothing changed between V3 and V4 */
924
925 /*********************************************************************
926 *********************************************************************/
927
928 static bool init_samu_from_buffer_v0(struct samu *sampass, uint8_t *buf, uint32_t buflen)
929 {
930
931 /* times are stored as 32bit integer
932 take care on system with 64bit wide time_t
933 --SSS */
934 uint32_t logon_time,
935 logoff_time,
936 kickoff_time,
937 pass_last_set_time,
938 pass_can_change_time,
939 pass_must_change_time;
940 char *username = NULL;
941 char *domain = NULL;
942 char *nt_username = NULL;
943 char *dir_drive = NULL;
944 char *unknown_str = NULL;
945 char *munged_dial = NULL;
946 char *fullname = NULL;
947 char *homedir = NULL;
948 char *logon_script = NULL;
949 char *profile_path = NULL;
950 char *acct_desc = NULL;
951 char *workstations = NULL;
952 uint32_t username_len, domain_len, nt_username_len,
953 dir_drive_len, unknown_str_len, munged_dial_len,
954 fullname_len, homedir_len, logon_script_len,
955 profile_path_len, acct_desc_len, workstations_len;
956
957 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
958 uint16_t acct_ctrl, logon_divs;
959 uint16_t bad_password_count, logon_count;
960 uint8_t *hours = NULL;
961 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
962 uint32_t len = 0;
963 uint32_t lm_pw_len, nt_pw_len, hourslen;
964 bool ret = True;
965
966 if(sampass == NULL || buf == NULL) {
967 DEBUG(0, ("init_samu_from_buffer_v0: NULL parameters found!\n"));
968 return False;
969 }
970
971 /* SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
972
973 /* unpack the buffer into variables */
974 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V0,
975 &logon_time, /* d */
976 &logoff_time, /* d */
977 &kickoff_time, /* d */
978 &pass_last_set_time, /* d */
979 &pass_can_change_time, /* d */
980 &pass_must_change_time, /* d */
981 &username_len, &username, /* B */
982 &domain_len, &domain, /* B */
983 &nt_username_len, &nt_username, /* B */
984 &fullname_len, &fullname, /* B */
985 &homedir_len, &homedir, /* B */
986 &dir_drive_len, &dir_drive, /* B */
987 &logon_script_len, &logon_script, /* B */
988 &profile_path_len, &profile_path, /* B */
989 &acct_desc_len, &acct_desc, /* B */
990 &workstations_len, &workstations, /* B */
991 &unknown_str_len, &unknown_str, /* B */
992 &munged_dial_len, &munged_dial, /* B */
993 &user_rid, /* d */
994 &group_rid, /* d */
995 &lm_pw_len, &lm_pw_ptr, /* B */
996 &nt_pw_len, &nt_pw_ptr, /* B */
997 &acct_ctrl, /* w */
998 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
999 &logon_divs, /* w */
1000 &hours_len, /* d */
1001 &hourslen, &hours, /* B */
1002 &bad_password_count, /* w */
1003 &logon_count, /* w */
1004 &unknown_6); /* d */
1005
1006 if (len == (uint32_t) -1) {
1007 ret = False;
1008 goto done;
1009 }
1010
1011 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1012 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1013 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1014 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1015 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1016
1017 pdb_set_username(sampass, username, PDB_SET);
1018 pdb_set_domain(sampass, domain, PDB_SET);
1019 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1020 pdb_set_fullname(sampass, fullname, PDB_SET);
1021
1022 if (homedir) {
1023 pdb_set_homedir(sampass, homedir, PDB_SET);
1024 }
1025 else {
1026 pdb_set_homedir(sampass,
1027 talloc_sub_basic(sampass, username, domain,
1028 lp_logon_home()),
1029 PDB_DEFAULT);
1030 }
1031
1032 if (dir_drive)
1033 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1034 else {
1035 pdb_set_dir_drive(sampass,
1036 talloc_sub_basic(sampass, username, domain,
1037 lp_logon_drive()),
1038 PDB_DEFAULT);
1039 }
1040
1041 if (logon_script)
1042 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1043 else {
1044 pdb_set_logon_script(sampass,
1045 talloc_sub_basic(sampass, username, domain,
1046 lp_logon_script()),
1047 PDB_DEFAULT);
1048 }
1049
1050 if (profile_path) {
1051 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1052 } else {
1053 pdb_set_profile_path(sampass,
1054 talloc_sub_basic(sampass, username, domain,
1055 lp_logon_path()),
1056 PDB_DEFAULT);
1057 }
1058
1059 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1060 pdb_set_workstations(sampass, workstations, PDB_SET);
1061 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1062
1063 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1064 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1065 ret = False;
1066 goto done;
1067 }
1068 }
1069
1070 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1071 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1072 ret = False;
1073 goto done;
1074 }
1075 }
1076
1077 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1078 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1079 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1080 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1081 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1082 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1083 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1084 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1085 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1086 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1087
1088 done:
1089
1090 SAFE_FREE(username);
1091 SAFE_FREE(domain);
1092 SAFE_FREE(nt_username);
1093 SAFE_FREE(fullname);
1094 SAFE_FREE(homedir);
1095 SAFE_FREE(dir_drive);
1096 SAFE_FREE(logon_script);
1097 SAFE_FREE(profile_path);
1098 SAFE_FREE(acct_desc);
1099 SAFE_FREE(workstations);
1100 SAFE_FREE(munged_dial);
1101 SAFE_FREE(unknown_str);
1102 SAFE_FREE(lm_pw_ptr);
1103 SAFE_FREE(nt_pw_ptr);
1104 SAFE_FREE(hours);
1105
1106 return ret;
1107 }
1108
1109 /*********************************************************************
1110 *********************************************************************/
1111
1112 static bool init_samu_from_buffer_v1(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1113 {
1114
1115 /* times are stored as 32bit integer
1116 take care on system with 64bit wide time_t
1117 --SSS */
1118 uint32_t logon_time,
1119 logoff_time,
1120 kickoff_time,
1121 bad_password_time,
1122 pass_last_set_time,
1123 pass_can_change_time,
1124 pass_must_change_time;
1125 char *username = NULL;
1126 char *domain = NULL;
1127 char *nt_username = NULL;
1128 char *dir_drive = NULL;
1129 char *unknown_str = NULL;
1130 char *munged_dial = NULL;
1131 char *fullname = NULL;
1132 char *homedir = NULL;
1133 char *logon_script = NULL;
1134 char *profile_path = NULL;
1135 char *acct_desc = NULL;
1136 char *workstations = NULL;
1137 uint32_t username_len, domain_len, nt_username_len,
1138 dir_drive_len, unknown_str_len, munged_dial_len,
1139 fullname_len, homedir_len, logon_script_len,
1140 profile_path_len, acct_desc_len, workstations_len;
1141
1142 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
1143 uint16_t acct_ctrl, logon_divs;
1144 uint16_t bad_password_count, logon_count;
1145 uint8_t *hours = NULL;
1146 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1147 uint32_t len = 0;
1148 uint32_t lm_pw_len, nt_pw_len, hourslen;
1149 bool ret = True;
1150
1151 if(sampass == NULL || buf == NULL) {
1152 DEBUG(0, ("init_samu_from_buffer_v1: NULL parameters found!\n"));
1153 return False;
1154 }
1155
1156 /* SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1157
1158 /* unpack the buffer into variables */
1159 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V1,
1160 &logon_time, /* d */
1161 &logoff_time, /* d */
1162 &kickoff_time, /* d */
1163 /* Change from V0 is addition of bad_password_time field. */
1164 &bad_password_time, /* d */
1165 &pass_last_set_time, /* d */
1166 &pass_can_change_time, /* d */
1167 &pass_must_change_time, /* d */
1168 &username_len, &username, /* B */
1169 &domain_len, &domain, /* B */
1170 &nt_username_len, &nt_username, /* B */
1171 &fullname_len, &fullname, /* B */
1172 &homedir_len, &homedir, /* B */
1173 &dir_drive_len, &dir_drive, /* B */
1174 &logon_script_len, &logon_script, /* B */
1175 &profile_path_len, &profile_path, /* B */
1176 &acct_desc_len, &acct_desc, /* B */
1177 &workstations_len, &workstations, /* B */
1178 &unknown_str_len, &unknown_str, /* B */
1179 &munged_dial_len, &munged_dial, /* B */
1180 &user_rid, /* d */
1181 &group_rid, /* d */
1182 &lm_pw_len, &lm_pw_ptr, /* B */
1183 &nt_pw_len, &nt_pw_ptr, /* B */
1184 &acct_ctrl, /* w */
1185 &remove_me, /* d */
1186 &logon_divs, /* w */
1187 &hours_len, /* d */
1188 &hourslen, &hours, /* B */
1189 &bad_password_count, /* w */
1190 &logon_count, /* w */
1191 &unknown_6); /* d */
1192
1193 if (len == (uint32_t) -1) {
1194 ret = False;
1195 goto done;
1196 }
1197
1198 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1199 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1200 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1201
1202 /* Change from V0 is addition of bad_password_time field. */
1203 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1204 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1205 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1206
1207 pdb_set_username(sampass, username, PDB_SET);
1208 pdb_set_domain(sampass, domain, PDB_SET);
1209 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1210 pdb_set_fullname(sampass, fullname, PDB_SET);
1211
1212 if (homedir) {
1213 pdb_set_homedir(sampass, homedir, PDB_SET);
1214 }
1215 else {
1216 pdb_set_homedir(sampass,
1217 talloc_sub_basic(sampass, username, domain,
1218 lp_logon_home()),
1219 PDB_DEFAULT);
1220 }
1221
1222 if (dir_drive)
1223 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1224 else {
1225 pdb_set_dir_drive(sampass,
1226 talloc_sub_basic(sampass, username, domain,
1227 lp_logon_drive()),
1228 PDB_DEFAULT);
1229 }
1230
1231 if (logon_script)
1232 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1233 else {
1234 pdb_set_logon_script(sampass,
1235 talloc_sub_basic(sampass, username, domain,
1236 lp_logon_script()),
1237 PDB_DEFAULT);
1238 }
1239
1240 if (profile_path) {
1241 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1242 } else {
1243 pdb_set_profile_path(sampass,
1244 talloc_sub_basic(sampass, username, domain,
1245 lp_logon_path()),
1246 PDB_DEFAULT);
1247 }
1248
1249 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1250 pdb_set_workstations(sampass, workstations, PDB_SET);
1251 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1252
1253 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1254 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1255 ret = False;
1256 goto done;
1257 }
1258 }
1259
1260 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1261 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1262 ret = False;
1263 goto done;
1264 }
1265 }
1266
1267 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1268
1269 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1270 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1271 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1272 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1273 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1274 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1275 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1276 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1277 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1278
1279 done:
1280
1281 SAFE_FREE(username);
1282 SAFE_FREE(domain);
1283 SAFE_FREE(nt_username);
1284 SAFE_FREE(fullname);
1285 SAFE_FREE(homedir);
1286 SAFE_FREE(dir_drive);
1287 SAFE_FREE(logon_script);
1288 SAFE_FREE(profile_path);
1289 SAFE_FREE(acct_desc);
1290 SAFE_FREE(workstations);
1291 SAFE_FREE(munged_dial);
1292 SAFE_FREE(unknown_str);
1293 SAFE_FREE(lm_pw_ptr);
1294 SAFE_FREE(nt_pw_ptr);
1295 SAFE_FREE(hours);
1296
1297 return ret;
1298 }
1299
1300 static bool init_samu_from_buffer_v2(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1301 {
1302
1303 /* times are stored as 32bit integer
1304 take care on system with 64bit wide time_t
1305 --SSS */
1306 uint32_t logon_time,
1307 logoff_time,
1308 kickoff_time,
1309 bad_password_time,
1310 pass_last_set_time,
1311 pass_can_change_time,
1312 pass_must_change_time;
1313 char *username = NULL;
1314 char *domain = NULL;
1315 char *nt_username = NULL;
1316 char *dir_drive = NULL;
1317 char *unknown_str = NULL;
1318 char *munged_dial = NULL;
1319 char *fullname = NULL;
1320 char *homedir = NULL;
1321 char *logon_script = NULL;
1322 char *profile_path = NULL;
1323 char *acct_desc = NULL;
1324 char *workstations = NULL;
1325 uint32_t username_len, domain_len, nt_username_len,
1326 dir_drive_len, unknown_str_len, munged_dial_len,
1327 fullname_len, homedir_len, logon_script_len,
1328 profile_path_len, acct_desc_len, workstations_len;
1329
1330 uint32_t user_rid, group_rid, hours_len, unknown_6;
1331 uint16_t acct_ctrl, logon_divs;
1332 uint16_t bad_password_count, logon_count;
1333 uint8_t *hours = NULL;
1334 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1335 uint32_t len = 0;
1336 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1337 uint32_t pwHistLen = 0;
1338 bool ret = True;
1339 fstring tmp_string;
1340 bool expand_explicit = lp_passdb_expand_explicit();
1341
1342 if(sampass == NULL || buf == NULL) {
1343 DEBUG(0, ("init_samu_from_buffer_v2: NULL parameters found!\n"));
1344 return False;
1345 }
1346
1347 /* SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1348
1349 /* unpack the buffer into variables */
1350 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V2,
1351 &logon_time, /* d */
1352 &logoff_time, /* d */
1353 &kickoff_time, /* d */
1354 &bad_password_time, /* d */
1355 &pass_last_set_time, /* d */
1356 &pass_can_change_time, /* d */
1357 &pass_must_change_time, /* d */
1358 &username_len, &username, /* B */
1359 &domain_len, &domain, /* B */
1360 &nt_username_len, &nt_username, /* B */
1361 &fullname_len, &fullname, /* B */
1362 &homedir_len, &homedir, /* B */
1363 &dir_drive_len, &dir_drive, /* B */
1364 &logon_script_len, &logon_script, /* B */
1365 &profile_path_len, &profile_path, /* B */
1366 &acct_desc_len, &acct_desc, /* B */
1367 &workstations_len, &workstations, /* B */
1368 &unknown_str_len, &unknown_str, /* B */
1369 &munged_dial_len, &munged_dial, /* B */
1370 &user_rid, /* d */
1371 &group_rid, /* d */
1372 &lm_pw_len, &lm_pw_ptr, /* B */
1373 &nt_pw_len, &nt_pw_ptr, /* B */
1374 /* Change from V1 is addition of password history field. */
1375 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1376 &acct_ctrl, /* w */
1377 /* Also "remove_me" field was removed. */
1378 &logon_divs, /* w */
1379 &hours_len, /* d */
1380 &hourslen, &hours, /* B */
1381 &bad_password_count, /* w */
1382 &logon_count, /* w */
1383 &unknown_6); /* d */
1384
1385 if (len == (uint32_t) -1) {
1386 ret = False;
1387 goto done;
1388 }
1389
1390 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1391 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1392 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1393 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1394 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1395 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1396
1397 pdb_set_username(sampass, username, PDB_SET);
1398 pdb_set_domain(sampass, domain, PDB_SET);
1399 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1400 pdb_set_fullname(sampass, fullname, PDB_SET);
1401
1402 if (homedir) {
1403 fstrcpy( tmp_string, homedir );
1404 if (expand_explicit) {
1405 standard_sub_basic( username, domain, tmp_string,
1406 sizeof(tmp_string) );
1407 }
1408 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1409 }
1410 else {
1411 pdb_set_homedir(sampass,
1412 talloc_sub_basic(sampass, username, domain,
1413 lp_logon_home()),
1414 PDB_DEFAULT);
1415 }
1416
1417 if (dir_drive)
1418 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1419 else
1420 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1421
1422 if (logon_script) {
1423 fstrcpy( tmp_string, logon_script );
1424 if (expand_explicit) {
1425 standard_sub_basic( username, domain, tmp_string,
1426 sizeof(tmp_string) );
1427 }
1428 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1429 }
1430 else {
1431 pdb_set_logon_script(sampass,
1432 talloc_sub_basic(sampass, username, domain,
1433 lp_logon_script()),
1434 PDB_DEFAULT);
1435 }
1436
1437 if (profile_path) {
1438 fstrcpy( tmp_string, profile_path );
1439 if (expand_explicit) {
1440 standard_sub_basic( username, domain, tmp_string,
1441 sizeof(tmp_string) );
1442 }
1443 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1444 }
1445 else {
1446 pdb_set_profile_path(sampass,
1447 talloc_sub_basic(sampass, username, domain,
1448 lp_logon_path()),
1449 PDB_DEFAULT);
1450 }
1451
1452 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1453 pdb_set_workstations(sampass, workstations, PDB_SET);
1454 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1455
1456 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1457 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1458 ret = False;
1459 goto done;
1460 }
1461 }
1462
1463 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1464 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1465 ret = False;
1466 goto done;
1467 }
1468 }
1469
1470 /* Change from V1 is addition of password history field. */
1471 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1472 if (pwHistLen) {
1473 uint8_t *pw_hist = SMB_MALLOC_ARRAY(uint8_t, pwHistLen * PW_HISTORY_ENTRY_LEN);
1474 if (!pw_hist) {
1475 ret = False;
1476 goto done;
1477 }
1478 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1479 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1480 int i;
1481 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1482 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1483 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1484 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1485 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1486 PW_HISTORY_ENTRY_LEN);
1487 }
1488 }
1489 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1490 SAFE_FREE(pw_hist);
1491 ret = False;
1492 goto done;
1493 }
1494 SAFE_FREE(pw_hist);
1495 } else {
1496 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1497 }
1498
1499 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1500 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1501 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1502 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1503 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1504 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1505 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1506 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1507 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1508
1509 done:
1510
1511 SAFE_FREE(username);
1512 SAFE_FREE(domain);
1513 SAFE_FREE(nt_username);
1514 SAFE_FREE(fullname);
1515 SAFE_FREE(homedir);
1516 SAFE_FREE(dir_drive);
1517 SAFE_FREE(logon_script);
1518 SAFE_FREE(profile_path);
1519 SAFE_FREE(acct_desc);
1520 SAFE_FREE(workstations);
1521 SAFE_FREE(munged_dial);
1522 SAFE_FREE(unknown_str);
1523 SAFE_FREE(lm_pw_ptr);
1524 SAFE_FREE(nt_pw_ptr);
1525 SAFE_FREE(nt_pw_hist_ptr);
1526 SAFE_FREE(hours);
1527
1528 return ret;
1529 }
1530
1531 /*********************************************************************
1532 *********************************************************************/
1533
1534 static bool init_samu_from_buffer_v3(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1535 {
1536
1537 /* times are stored as 32bit integer
1538 take care on system with 64bit wide time_t
1539 --SSS */
1540 uint32_t logon_time,
1541 logoff_time,
1542 kickoff_time,
1543 bad_password_time,
1544 pass_last_set_time,
1545 pass_can_change_time,
1546 pass_must_change_time;
1547 char *username = NULL;
1548 char *domain = NULL;
1549 char *nt_username = NULL;
1550 char *dir_drive = NULL;
1551 char *comment = NULL;
1552 char *munged_dial = NULL;
1553 char *fullname = NULL;
1554 char *homedir = NULL;
1555 char *logon_script = NULL;
1556 char *profile_path = NULL;
1557 char *acct_desc = NULL;
1558 char *workstations = NULL;
1559 uint32_t username_len, domain_len, nt_username_len,
1560 dir_drive_len, comment_len, munged_dial_len,
1561 fullname_len, homedir_len, logon_script_len,
1562 profile_path_len, acct_desc_len, workstations_len;
1563
1564 uint32_t user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
1565 uint16_t logon_divs;
1566 uint16_t bad_password_count, logon_count;
1567 uint8_t *hours = NULL;
1568 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1569 uint32_t len = 0;
1570 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1571 uint32_t pwHistLen = 0;
1572 bool ret = True;
1573 fstring tmp_string;
1574 bool expand_explicit = lp_passdb_expand_explicit();
1575
1576 if(sampass == NULL || buf == NULL) {
1577 DEBUG(0, ("init_samu_from_buffer_v3: NULL parameters found!\n"));
1578 return False;
1579 }
1580
1581 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1582
1583 /* unpack the buffer into variables */
1584 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V3,
1585 &logon_time, /* d */
1586 &logoff_time, /* d */
1587 &kickoff_time, /* d */
1588 &bad_password_time, /* d */
1589 &pass_last_set_time, /* d */
1590 &pass_can_change_time, /* d */
1591 &pass_must_change_time, /* d */
1592 &username_len, &username, /* B */
1593 &domain_len, &domain, /* B */
1594 &nt_username_len, &nt_username, /* B */
1595 &fullname_len, &fullname, /* B */
1596 &homedir_len, &homedir, /* B */
1597 &dir_drive_len, &dir_drive, /* B */
1598 &logon_script_len, &logon_script, /* B */
1599 &profile_path_len, &profile_path, /* B */
1600 &acct_desc_len, &acct_desc, /* B */
1601 &workstations_len, &workstations, /* B */
1602 &comment_len, &comment, /* B */
1603 &munged_dial_len, &munged_dial, /* B */
1604 &user_rid, /* d */
1605 &group_rid, /* d */
1606 &lm_pw_len, &lm_pw_ptr, /* B */
1607 &nt_pw_len, &nt_pw_ptr, /* B */
1608 /* Change from V1 is addition of password history field. */
1609 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1610 /* Change from V2 is the uint32_t acb_mask */
1611 &acct_ctrl, /* d */
1612 /* Also "remove_me" field was removed. */
1613 &logon_divs, /* w */
1614 &hours_len, /* d */
1615 &hourslen, &hours, /* B */
1616 &bad_password_count, /* w */
1617 &logon_count, /* w */
1618 &unknown_6); /* d */
1619
1620 if (len == (uint32_t) -1) {
1621 ret = False;
1622 goto done;
1623 }
1624
1625 pdb_set_logon_time(sampass, convert_uint32_t_to_time_t(logon_time), PDB_SET);
1626 pdb_set_logoff_time(sampass, convert_uint32_t_to_time_t(logoff_time), PDB_SET);
1627 pdb_set_kickoff_time(sampass, convert_uint32_t_to_time_t(kickoff_time), PDB_SET);
1628 pdb_set_bad_password_time(sampass, convert_uint32_t_to_time_t(bad_password_time), PDB_SET);
1629 pdb_set_pass_can_change_time(sampass, convert_uint32_t_to_time_t(pass_can_change_time), PDB_SET);
1630 pdb_set_pass_last_set_time(sampass, convert_uint32_t_to_time_t(pass_last_set_time), PDB_SET);
1631
1632 pdb_set_username(sampass, username, PDB_SET);
1633 pdb_set_domain(sampass, domain, PDB_SET);
1634 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1635 pdb_set_fullname(sampass, fullname, PDB_SET);
1636
1637 if (homedir) {
1638 fstrcpy( tmp_string, homedir );
1639 if (expand_explicit) {
1640 standard_sub_basic( username, domain, tmp_string,
1641 sizeof(tmp_string) );
1642 }
1643 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1644 }
1645 else {
1646 pdb_set_homedir(sampass,
1647 talloc_sub_basic(sampass, username, domain,
1648 lp_logon_home()),
1649 PDB_DEFAULT);
1650 }
1651
1652 if (dir_drive)
1653 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1654 else
1655 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1656
1657 if (logon_script) {
1658 fstrcpy( tmp_string, logon_script );
1659 if (expand_explicit) {
1660 standard_sub_basic( username, domain, tmp_string,
1661 sizeof(tmp_string) );
1662 }
1663 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1664 }
1665 else {
1666 pdb_set_logon_script(sampass,
1667 talloc_sub_basic(sampass, username, domain,
1668 lp_logon_script()),
1669 PDB_DEFAULT);
1670 }
1671
1672 if (profile_path) {
1673 fstrcpy( tmp_string, profile_path );
1674 if (expand_explicit) {
1675 standard_sub_basic( username, domain, tmp_string,
1676 sizeof(tmp_string) );
1677 }
1678 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1679 }
1680 else {
1681 pdb_set_profile_path(sampass,
1682 talloc_sub_basic(sampass, username, domain, lp_logon_path()),
1683 PDB_DEFAULT);
1684 }
1685
1686 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1687 pdb_set_comment(sampass, comment, PDB_SET);
1688 pdb_set_workstations(sampass, workstations, PDB_SET);
1689 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1690
1691 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1692 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1693 ret = False;
1694 goto done;
1695 }
1696 }
1697
1698 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1699 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1700 ret = False;
1701 goto done;
1702 }
1703 }
1704
1705 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1706 if (pwHistLen) {
1707 uint8_t *pw_hist = (uint8_t *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1708 if (!pw_hist) {
1709 ret = False;
1710 goto done;
1711 }
1712 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1713 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1714 int i;
1715 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1716 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1717 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1718 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1719 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1720 PW_HISTORY_ENTRY_LEN);
1721 }
1722 }
1723 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1724 SAFE_FREE(pw_hist);
1725 ret = False;
1726 goto done;
1727 }
1728 SAFE_FREE(pw_hist);
1729 } else {
1730 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1731 }
1732
1733 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1734 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1735 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1736 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1737 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1738 /* Change from V2 is the uint32_t acct_ctrl */
1739 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1740 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1741 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1742
1743 done:
1744
1745 SAFE_FREE(username);
1746 SAFE_FREE(domain);
1747 SAFE_FREE(nt_username);
1748 SAFE_FREE(fullname);
1749 SAFE_FREE(homedir);
1750 SAFE_FREE(dir_drive);
1751 SAFE_FREE(logon_script);
1752 SAFE_FREE(profile_path);
1753 SAFE_FREE(acct_desc);
1754 SAFE_FREE(workstations);
1755 SAFE_FREE(munged_dial);
1756 SAFE_FREE(comment);
1757 SAFE_FREE(lm_pw_ptr);
1758 SAFE_FREE(nt_pw_ptr);
1759 SAFE_FREE(nt_pw_hist_ptr);
1760 SAFE_FREE(hours);
1761
1762 return ret;
1763 }
1764
1765 /*********************************************************************
1766 *********************************************************************/
1767
1768 static uint32_t init_buffer_from_samu_v3 (uint8_t **buf, struct samu *sampass, bool size_only)
1769 {
1770 size_t len, buflen;
1771
1772 /* times are stored as 32bit integer
1773 take care on system with 64bit wide time_t
1774 --SSS */
1775 uint32_t logon_time,
1776 logoff_time,
1777 kickoff_time,
1778 bad_password_time,
1779 pass_last_set_time,
1780 pass_can_change_time,
1781 pass_must_change_time;
1782
1783 uint32_t user_rid, group_rid;
1784
1785 const char *username;
1786 const char *domain;
1787 const char *nt_username;
1788 const char *dir_drive;
1789 const char *comment;
1790 const char *munged_dial;
1791 const char *fullname;
1792 const char *homedir;
1793 const char *logon_script;
1794 const char *profile_path;
1795 const char *acct_desc;
1796 const char *workstations;
1797 uint32_t username_len, domain_len, nt_username_len,
1798 dir_drive_len, comment_len, munged_dial_len,
1799 fullname_len, homedir_len, logon_script_len,
1800 profile_path_len, acct_desc_len, workstations_len;
1801
1802 const uint8_t *lm_pw;
1803 const uint8_t *nt_pw;
1804 const uint8_t *nt_pw_hist;
1805 uint32_t lm_pw_len = 16;
1806 uint32_t nt_pw_len = 16;
1807 uint32_t nt_pw_hist_len;
1808 uint32_t pwHistLen = 0;
1809
1810 *buf = NULL;
1811 buflen = 0;
1812
1813 logon_time = convert_time_t_to_uint32_t(pdb_get_logon_time(sampass));
1814 logoff_time = convert_time_t_to_uint32_t(pdb_get_logoff_time(sampass));
1815 kickoff_time = convert_time_t_to_uint32_t(pdb_get_kickoff_time(sampass));
1816 bad_password_time = convert_time_t_to_uint32_t(pdb_get_bad_password_time(sampass));
1817 pass_can_change_time = convert_time_t_to_uint32_t(pdb_get_pass_can_change_time_noncalc(sampass));
1818 pass_must_change_time = convert_time_t_to_uint32_t(pdb_get_pass_must_change_time(sampass));
1819 pass_last_set_time = convert_time_t_to_uint32_t(pdb_get_pass_last_set_time(sampass));
1820
1821 user_rid = pdb_get_user_rid(sampass);
1822 group_rid = pdb_get_group_rid(sampass);
1823
1824 username = pdb_get_username(sampass);
1825 if (username) {
1826 username_len = strlen(username) +1;
1827 } else {
1828 username_len = 0;
1829 }
1830
1831 domain = pdb_get_domain(sampass);
1832 if (domain) {
1833 domain_len = strlen(domain) +1;
1834 } else {
1835 domain_len = 0;
1836 }
1837
1838 nt_username = pdb_get_nt_username(sampass);
1839 if (nt_username) {
1840 nt_username_len = strlen(nt_username) +1;
1841 } else {
1842 nt_username_len = 0;
1843 }
1844
1845 fullname = pdb_get_fullname(sampass);
1846 if (fullname) {
1847 fullname_len = strlen(fullname) +1;
1848 } else {
1849 fullname_len = 0;
1850 }
1851
1852 /*
1853 * Only updates fields which have been set (not defaults from smb.conf)
1854 */
1855
1856 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1857 dir_drive = pdb_get_dir_drive(sampass);
1858 } else {
1859 dir_drive = NULL;
1860 }
1861 if (dir_drive) {
1862 dir_drive_len = strlen(dir_drive) +1;
1863 } else {
1864 dir_drive_len = 0;
1865 }
1866
1867 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1868 homedir = pdb_get_homedir(sampass);
1869 } else {
1870 homedir = NULL;
1871 }
1872 if (homedir) {
1873 homedir_len = strlen(homedir) +1;
1874 } else {
1875 homedir_len = 0;
1876 }
1877
1878 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1879 logon_script = pdb_get_logon_script(sampass);
1880 } else {
1881 logon_script = NULL;
1882 }
1883 if (logon_script) {
1884 logon_script_len = strlen(logon_script) +1;
1885 } else {
1886 logon_script_len = 0;
1887 }
1888
1889 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1890 profile_path = pdb_get_profile_path(sampass);
1891 } else {
1892 profile_path = NULL;
1893 }
1894 if (profile_path) {
1895 profile_path_len = strlen(profile_path) +1;
1896 } else {
1897 profile_path_len = 0;
1898 }
1899
1900 lm_pw = pdb_get_lanman_passwd(sampass);
1901 if (!lm_pw) {
1902 lm_pw_len = 0;
1903 }
1904
1905 nt_pw = pdb_get_nt_passwd(sampass);
1906 if (!nt_pw) {
1907 nt_pw_len = 0;
1908 }
1909
1910 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1911 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
1912 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1913 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1914 } else {
1915 nt_pw_hist_len = 0;
1916 }
1917
1918 acct_desc = pdb_get_acct_desc(sampass);
1919 if (acct_desc) {
1920 acct_desc_len = strlen(acct_desc) +1;
1921 } else {
1922 acct_desc_len = 0;
1923 }
1924
1925 workstations = pdb_get_workstations(sampass);
1926 if (workstations) {
1927 workstations_len = strlen(workstations) +1;
1928 } else {
1929 workstations_len = 0;
1930 }
1931
1932 comment = pdb_get_comment(sampass);
1933 if (comment) {
1934 comment_len = strlen(comment) +1;
1935 } else {
1936 comment_len = 0;
1937 }
1938
1939 munged_dial = pdb_get_munged_dial(sampass);
1940 if (munged_dial) {
1941 munged_dial_len = strlen(munged_dial) +1;
1942 } else {
1943 munged_dial_len = 0;
1944 }
1945
1946 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1947
1948 /* one time to get the size needed */
1949 len = tdb_pack(NULL, 0, SAMU_BUFFER_FORMAT_V3,
1950 logon_time, /* d */
1951 logoff_time, /* d */
1952 kickoff_time, /* d */
1953 bad_password_time, /* d */
1954 pass_last_set_time, /* d */
1955 pass_can_change_time, /* d */
1956 pass_must_change_time, /* d */
1957 username_len, username, /* B */
1958 domain_len, domain, /* B */
1959 nt_username_len, nt_username, /* B */
1960 fullname_len, fullname, /* B */
1961 homedir_len, homedir, /* B */
1962 dir_drive_len, dir_drive, /* B */
1963 logon_script_len, logon_script, /* B */
1964 profile_path_len, profile_path, /* B */
1965 acct_desc_len, acct_desc, /* B */
1966 workstations_len, workstations, /* B */
1967 comment_len, comment, /* B */
1968 munged_dial_len, munged_dial, /* B */
1969 user_rid, /* d */
1970 group_rid, /* d */
1971 lm_pw_len, lm_pw, /* B */
1972 nt_pw_len, nt_pw, /* B */
1973 nt_pw_hist_len, nt_pw_hist, /* B */
1974 pdb_get_acct_ctrl(sampass), /* d */
1975 pdb_get_logon_divs(sampass), /* w */
1976 pdb_get_hours_len(sampass), /* d */
1977 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1978 pdb_get_bad_password_count(sampass), /* w */
1979 pdb_get_logon_count(sampass), /* w */
1980 pdb_get_unknown_6(sampass)); /* d */
1981
1982 if (size_only) {
1983 return buflen;
1984 }
1985
1986 /* malloc the space needed */
1987 if ( (*buf=(uint8_t*)SMB_MALLOC(len)) == NULL) {
1988 DEBUG(0,("init_buffer_from_samu_v3: Unable to malloc() memory for buffer!\n"));
1989 return (-1);
1990 }
1991
1992 /* now for the real call to tdb_pack() */
1993 buflen = tdb_pack(*buf, len, SAMU_BUFFER_FORMAT_V3,
1994 logon_time, /* d */
1995 logoff_time, /* d */
1996 kickoff_time, /* d */
1997 bad_password_time, /* d */
1998 pass_last_set_time, /* d */
1999 pass_can_change_time, /* d */
2000 pass_must_change_time, /* d */
2001 username_len, username, /* B */
2002 domain_len, domain, /* B */
2003 nt_username_len, nt_username, /* B */
2004 fullname_len, fullname, /* B */
2005 homedir_len, homedir, /* B */
2006 dir_drive_len, dir_drive, /* B */
2007 logon_script_len, logon_script, /* B */
2008 profile_path_len, profile_path, /* B */
2009 acct_desc_len, acct_desc, /* B */
2010 workstations_len, workstations, /* B */
2011 comment_len, comment, /* B */
2012 munged_dial_len, munged_dial, /* B */
2013 user_rid, /* d */
2014 group_rid, /* d */
2015 lm_pw_len, lm_pw, /* B */
2016 nt_pw_len, nt_pw, /* B */
2017 nt_pw_hist_len, nt_pw_hist, /* B */
2018 pdb_get_acct_ctrl(sampass), /* d */
2019 pdb_get_logon_divs(sampass), /* w */
2020 pdb_get_hours_len(sampass), /* d */
2021 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2022 pdb_get_bad_password_count(sampass), /* w */
2023 pdb_get_logon_count(sampass), /* w */
2024 pdb_get_unknown_6(sampass)); /* d */
2025
2026 /* check to make sure we got it correct */
2027 if (buflen != len) {
2028 DEBUG(0, ("init_buffer_from_samu_v3: something odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2029 (unsigned long)buflen, (unsigned long)len));
2030 /* error */
2031 SAFE_FREE (*buf);
2032 return (-1);
2033 }
2034
2035 return (buflen);
2036 }
2037
2038 static bool init_samu_from_buffer_v4(struct samu *sampass, uint8_t *buf, uint32_t buflen)
2039 {
2040 /* nothing changed between V3 and V4 */
2041 return init_samu_from_buffer_v3(sampass, buf, buflen);
2042 }
2043
2044 static uint32_t init_buffer_from_samu_v4(uint8_t **buf, struct samu *sampass, bool size_only)
2045 {
2046 /* nothing changed between V3 and V4 */
2047 return init_buffer_from_samu_v3(buf, sampass, size_only);
2048 }
2049
2050 /**********************************************************************
2051 Intialize a struct samu struct from a BYTE buffer of size len
2052 *********************************************************************/
2053
2054 bool init_samu_from_buffer(struct samu *sampass, uint32_t level,
2055 uint8_t *buf, uint32_t buflen)
2056 {
2057 switch (level) {
2058 case SAMU_BUFFER_V0:
2059 return init_samu_from_buffer_v0(sampass, buf, buflen);
2060 case SAMU_BUFFER_V1:
2061 return init_samu_from_buffer_v1(sampass, buf, buflen);
2062 case SAMU_BUFFER_V2:
2063 return init_samu_from_buffer_v2(sampass, buf, buflen);
2064 case SAMU_BUFFER_V3:
2065 return init_samu_from_buffer_v3(sampass, buf, buflen);
2066 case SAMU_BUFFER_V4:
2067 return init_samu_from_buffer_v4(sampass, buf, buflen);
2068 }
2069
2070 return false;
2071 }
2072
2073 /**********************************************************************
2074 Intialize a BYTE buffer from a struct samu struct
2075 *********************************************************************/
2076
2077 uint32_t init_buffer_from_samu (uint8_t **buf, struct samu *sampass, bool size_only)
2078 {
2079 return init_buffer_from_samu_v4(buf, sampass, size_only);
2080 }
2081
2082 /*********************************************************************
2083 *********************************************************************/
2084
2085 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
2086 {
2087 uint8_t *buf = NULL;
2088 int len;
2089
2090 len = init_buffer_from_samu(&buf, src, False);
2091 if (len == -1 || !buf) {
2092 SAFE_FREE(buf);
2093 return False;
2094 }
2095
2096 if (!init_samu_from_buffer( dst, SAMU_BUFFER_LATEST, buf, len )) {
2097 free(buf);
2098 return False;
2099 }
2100
2101 dst->methods = src->methods;
2102
2103 if ( src->unix_pw ) {
2104 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
2105 if (!dst->unix_pw) {
2106 free(buf);
2107 return False;
2108 }
2109 }
2110
2111 if (src->group_sid) {
2112 pdb_set_group_sid(dst, src->group_sid, PDB_SET);
2113 }
2114
2115 free(buf);
2116 return True;
2117 }
2118
2119 /*********************************************************************
2120 Update the bad password count checking the PDB_POLICY_RESET_COUNT_TIME
2121 *********************************************************************/
2122
2123 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
2124 {
2125 time_t LastBadPassword;
2126 uint16_t BadPasswordCount;
2127 uint32_t resettime;
2128 bool res;
2129
2130 BadPasswordCount = pdb_get_bad_password_count(sampass);
2131 if (!BadPasswordCount) {
2132 DEBUG(9, ("No bad password attempts.\n"));
2133 return True;
2134 }
2135
2136 become_root();
2137 res = pdb_get_account_policy(PDB_POLICY_RESET_COUNT_TIME, &resettime);
2138 unbecome_root();
2139
2140 if (!res) {
2141 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2142 return False;
2143 }
2144
2145 /* First, check if there is a reset time to compare */
2146 if ((resettime == (uint32_t) -1) || (resettime == 0)) {
2147 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2148 return True;
2149 }
2150
2151 LastBadPassword = pdb_get_bad_password_time(sampass);
2152 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2153 (uint32_t) LastBadPassword, resettime, (uint32_t)time(NULL)));
2154 if (time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(resettime)*60)){
2155 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2156 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2157 if (updated) {
2158 *updated = True;
2159 }
2160 }
2161
2162 return True;
2163 }
2164
2165 /*********************************************************************
2166 Update the ACB_AUTOLOCK flag checking the PDB_POLICY_LOCK_ACCOUNT_DURATION
2167 *********************************************************************/
2168
2169 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
2170 {
2171 uint32_t duration;
2172 time_t LastBadPassword;
2173 bool res;
2174
2175 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2176 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2177 pdb_get_username(sampass)));
2178 return True;
2179 }
2180
2181 become_root();
2182 res = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION, &duration);
2183 unbecome_root();
2184
2185 if (!res) {
2186 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2187 return False;
2188 }
2189
2190 /* First, check if there is a duration to compare */
2191 if ((duration == (uint32_t) -1) || (duration == 0)) {
2192 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2193 return True;
2194 }
2195
2196 LastBadPassword = pdb_get_bad_password_time(sampass);
2197 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2198 pdb_get_username(sampass), (uint32_t)LastBadPassword, duration*60, (uint32_t)time(NULL)));
2199
2200 if (LastBadPassword == (time_t)0) {
2201 DEBUG(1,("pdb_update_autolock_flag: Account %s "
2202 "administratively locked out with no bad password "
2203 "time. Leaving locked out.\n",
2204 pdb_get_username(sampass) ));
2205 return True;
2206 }
2207
2208 if ((time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(duration) * 60))) {
2209 pdb_set_acct_ctrl(sampass,
2210 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2211 PDB_CHANGED);
2212 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2213 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2214 if (updated) {
2215 *updated = True;
2216 }
2217 }
2218
2219 return True;
2220 }
2221
2222 /*********************************************************************
2223 Increment the bad_password_count
2224 *********************************************************************/
2225
2226 bool pdb_increment_bad_password_count(struct samu *sampass)
2227 {
2228 uint32_t account_policy_lockout;
2229 bool autolock_updated = False, badpw_updated = False;
2230 bool ret;
2231
2232 /* Retrieve the account lockout policy */
2233 become_root();
2234 ret = pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2235 unbecome_root();
2236 if ( !ret ) {
2237 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2238 return False;
2239 }
2240
2241 /* If there is no policy, we don't need to continue checking */
2242 if (!account_policy_lockout) {
2243 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2244 return True;
2245 }
2246
2247 /* Check if the autolock needs to be cleared */
2248 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2249 return False;
2250
2251 /* Check if the badpw count needs to be reset */
2252 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2253 return False;
2254
2255 /*
2256 Ok, now we can assume that any resetting that needs to be
2257 done has been done, and just get on with incrementing
2258 and autolocking if necessary
2259 */
2260
2261 pdb_set_bad_password_count(sampass,
2262 pdb_get_bad_password_count(sampass)+1,
2263 PDB_CHANGED);
2264 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2265
2266
2267 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2268 return True;
2269
2270 if (!pdb_set_acct_ctrl(sampass,
2271 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2272 PDB_CHANGED)) {
2273 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2274 return False;
2275 }
2276
2277 return True;
2278 }
2279
2280 bool is_dc_trusted_domain_situation(const char *domain_name)
2281 {
2282 return IS_DC && !strequal(domain_name, lp_workgroup());
2283 }
2284
2285 /*******************************************************************
2286 Wrapper around retrieving the clear text trust account password.
2287 appropriate account name is stored in account_name.
2288 Caller must free password, but not account_name.
2289 *******************************************************************/
2290
2291 static bool get_trust_pw_clear2(const char *domain,
2292 const char **account_name,
2293 enum netr_SchannelType *channel,
2294 char **cur_pw,
2295 time_t *_last_set_time,
2296 char **prev_pw)
2297 {
2298 char *pwd;
2299 time_t last_set_time;
2300
2301 if (cur_pw != NULL) {
2302 *cur_pw = NULL;
2303 }
2304 if (_last_set_time != NULL) {
2305 *_last_set_time = 0;
2306 }
2307 if (prev_pw != NULL) {
2308 *prev_pw = NULL;
2309 }
2310
2311 /* if we are a DC and this is not our domain, then lookup an account
2312 * for the domain trust */
2313
2314 if (is_dc_trusted_domain_situation(domain)) {
2315 if (!lp_allow_trusted_domains()) {
2316 return false;
2317 }
2318
2319 if (!pdb_get_trusteddom_pw(domain, cur_pw, NULL,
2320 &last_set_time))
2321 {
2322 DEBUG(0, ("get_trust_pw: could not fetch trust "
2323 "account password for trusted domain %s\n",
2324 domain));
2325 return false;
2326 }
2327
2328 if (channel != NULL) {
2329 *channel = SEC_CHAN_DOMAIN;
2330 }
2331
2332 if (account_name != NULL) {
2333 *account_name = lp_workgroup();
2334 }
2335
2336 if (_last_set_time != NULL) {
2337 *_last_set_time = last_set_time;
2338 }
2339
2340 return true;
2341 }
2342
2343 /*
2344 * Since we can only be member of one single domain, we are now
2345 * in a member situation:
2346 *
2347 * - Either we are a DC (selfjoined) and the domain is our
2348 * own domain.
2349 * - Or we are on a member and the domain is our own or some
2350 * other (potentially trusted) domain.
2351 *
2352 * In both cases, we can only get the machine account password
2353 * for our own domain to connect to our own dc. (For a member,
2354 * request to trusted domains are performed through our dc.)
2355 *
2356 * So we simply use our own domain name to retrieve the
2357 * machine account passowrd and ignore the request domain here.
2358 */
2359
2360 pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
2361
2362 if (pwd != NULL) {
2363 struct timeval expire;
2364
2365 *cur_pw = pwd;
2366
2367 if (account_name != NULL) {
2368 *account_name = lp_netbios_name();
2369 }
2370
2371 if (_last_set_time != NULL) {
2372 *_last_set_time = last_set_time;
2373 }
2374
2375 if (prev_pw == NULL) {
2376 return true;
2377 }
2378
2379 ZERO_STRUCT(expire);
2380 expire.tv_sec = lp_machine_password_timeout();
2381 expire.tv_sec /= 2;
2382 expire.tv_sec += last_set_time;
2383 if (timeval_expired(&expire)) {
2384 return true;
2385 }
2386
2387 pwd = secrets_fetch_prev_machine_password(lp_workgroup());
2388 if (pwd != NULL) {
2389 *prev_pw = pwd;
2390 }
2391
2392 return true;
2393 }
2394
2395 DEBUG(5, ("get_trust_pw_clear2: could not fetch clear text trust "
2396 "account password for domain %s\n", domain));
2397 return false;
2398 }
2399
2400 bool get_trust_pw_clear(const char *domain, char **ret_pwd,
2401 const char **account_name,
2402 enum netr_SchannelType *channel)
2403 {
2404 return get_trust_pw_clear2(domain,
2405 account_name,
2406 channel,
2407 ret_pwd,
2408 NULL,
2409 NULL);
2410 }
2411
2412 /*******************************************************************
2413 Wrapper around retrieving the trust account password.
2414 appropriate account name is stored in account_name.
2415 *******************************************************************/
2416
2417 static bool get_trust_pw_hash2(const char *domain,
2418 const char **account_name,
2419 enum netr_SchannelType *channel,
2420 struct samr_Password *current_nt_hash,
2421 time_t *last_set_time,
2422 struct samr_Password **_previous_nt_hash)
2423 {
2424 char *cur_pw = NULL;
2425 char *prev_pw = NULL;
2426 char **_prev_pw = NULL;
2427 bool ok;
2428
2429 if (_previous_nt_hash != NULL) {
2430 *_previous_nt_hash = NULL;
2431 _prev_pw = &prev_pw;
2432 }
2433
2434 ok = get_trust_pw_clear2(domain, account_name, channel,
2435 &cur_pw, last_set_time, _prev_pw);
2436 if (ok) {
2437 struct samr_Password *previous_nt_hash = NULL;
2438
2439 E_md4hash(cur_pw, current_nt_hash->hash);
2440 SAFE_FREE(cur_pw);
2441
2442 if (prev_pw == NULL) {
2443 return true;
2444 }
2445
2446 previous_nt_hash = SMB_MALLOC_P(struct samr_Password);
2447 if (previous_nt_hash == NULL) {
2448 return false;
2449 }
2450
2451 E_md4hash(prev_pw, previous_nt_hash->hash);
2452 SAFE_FREE(prev_pw);
2453
2454 *_previous_nt_hash = previous_nt_hash;
2455 return true;
2456 } else if (is_dc_trusted_domain_situation(domain)) {
2457 return false;
2458 }
2459
2460 /* as a fallback, try to get the hashed pwd directly from the tdb... */
2461
2462 if (secrets_fetch_trust_account_password_legacy(domain,
2463 current_nt_hash->hash,
2464 last_set_time,
2465 channel))
2466 {
2467 if (account_name != NULL) {
2468 *account_name = lp_netbios_name();
2469 }
2470
2471 return true;
2472 }
2473
2474 DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
2475 "password for domain %s\n", domain));
2476 return False;
2477 }
2478
2479 bool get_trust_pw_hash(const char *domain, uint8_t ret_pwd[16],
2480 const char **account_name,
2481 enum netr_SchannelType *channel)
2482 {
2483 struct samr_Password current_nt_hash;
2484 bool ok;
2485
2486 ok = get_trust_pw_hash2(domain, account_name, channel,
2487 &current_nt_hash, NULL, NULL);
2488 if (!ok) {
2489 return false;
2490 }
2491
2492 memcpy(ret_pwd, current_nt_hash.hash, sizeof(current_nt_hash.hash));
2493 return true;
2494 }
2495
2496 NTSTATUS pdb_get_trust_credentials(const char *netbios_domain,
2497 const char *dns_domain, /* optional */
2498 TALLOC_CTX *mem_ctx,
2499 struct cli_credentials **_creds)
2500 {
2501 TALLOC_CTX *frame = talloc_stackframe();
2502 NTSTATUS status;
2503 struct loadparm_context *lp_ctx;
2504 enum netr_SchannelType channel;
2505 time_t last_set_time;
2506 const char *_account_name;
2507 const char *account_name;
2508 char *cur_pw = NULL;
2509 char *prev_pw = NULL;
2510 struct samr_Password cur_nt_hash;
2511 struct cli_credentials *creds = NULL;
2512 bool ok;
2513
2514 /*
2515 * If this is our primary trust relationship, use the common
2516 * code to read the secrets.ldb or secrets.tdb file.
2517 */
2518 if (strequal(netbios_domain, lp_workgroup())) {
2519 struct db_context *db_ctx = secrets_db_ctx();
2520 if (db_ctx == NULL) {
2521 DEBUG(1, ("failed to open secrets.tdb to obtain our trust credentials for %s\n",
2522 netbios_domain));
2523 status = NT_STATUS_INTERNAL_ERROR;
2524 goto fail;
2525 }
2526
2527 lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
2528 if (lp_ctx == NULL) {
2529 DEBUG(1, ("loadparm_init_s3 failed\n"));
2530 status = NT_STATUS_INTERNAL_ERROR;
2531 goto fail;
2532 }
2533
2534 creds = cli_credentials_init(mem_ctx);
2535 if (creds == NULL) {
2536 status = NT_STATUS_NO_MEMORY;
2537 goto fail;
2538 }
2539
2540 cli_credentials_set_conf(creds, lp_ctx);
2541
2542 ok = cli_credentials_set_domain(creds, netbios_domain, CRED_SPECIFIED);
2543 if (!ok) {
2544 status = NT_STATUS_NO_MEMORY;
2545 goto fail;
2546 }
2547
2548 status = cli_credentials_set_machine_account_db_ctx(creds,
2549 lp_ctx,
2550 db_ctx);
2551 if (!NT_STATUS_IS_OK(status)) {
2552 goto fail;
2553 }
2554 goto done;
2555 } else if (!IS_DC) {
2556 DEBUG(1, ("Refusing to get trust account info for %s, "
2557 "which is not our primary domain %s, "
2558 "as we are not a DC\n",
2559 netbios_domain, lp_workgroup()));
2560 status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2561 goto fail;
2562 }
2563
2564 status = pdb_get_trusteddom_creds(netbios_domain, mem_ctx, &creds);
2565 if (NT_STATUS_IS_OK(status)) {
2566 goto done;
2567 }
2568 if (!NT_STATUS_EQUAL(status, NT_STATUS_NOT_IMPLEMENTED)) {
2569 goto fail;
2570 }
2571
2572 ok = get_trust_pw_clear2(netbios_domain,
2573 &_account_name,
2574 &channel,
2575 &cur_pw,
2576 &last_set_time,
2577 &prev_pw);
2578 if (!ok) {
2579 ok = get_trust_pw_hash2(netbios_domain,
2580 &_account_name,
2581 &channel,
2582 &cur_nt_hash,
2583 &last_set_time,
2584 NULL);
2585 if (!ok) {
2586 DEBUG(1, ("get_trust_pw_*2 failed for domain[%s]\n",
2587 netbios_domain));
2588 status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
2589 goto fail;
2590 }
2591 }
2592
2593 account_name = talloc_asprintf(frame, "%s$", _account_name);
2594 if (account_name == NULL) {
2595 status = NT_STATUS_NO_MEMORY;
2596 goto fail;
2597 }
2598
2599 lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
2600 if (lp_ctx == NULL) {
2601 DEBUG(1, ("loadparm_init_s3 failed\n"));
2602 status = NT_STATUS_INTERNAL_ERROR;
2603 goto fail;
2604 }
2605
2606 creds = cli_credentials_init(mem_ctx);
2607 if (creds == NULL) {
2608 status = NT_STATUS_NO_MEMORY;
2609 goto fail;
2610 }
2611
2612 cli_credentials_set_conf(creds, lp_ctx);
2613
2614 cli_credentials_set_secure_channel_type(creds, channel);
2615 cli_credentials_set_password_last_changed_time(creds, last_set_time);
2616
2617 ok = cli_credentials_set_domain(creds, netbios_domain, CRED_SPECIFIED);
2618 if (!ok) {
2619 status = NT_STATUS_NO_MEMORY;
2620 goto fail;
2621 }
2622
2623 if (dns_domain != NULL) {
2624 ok = cli_credentials_set_realm(creds, dns_domain, CRED_SPECIFIED);
2625 if (!ok) {
2626 status = NT_STATUS_NO_MEMORY;
2627 goto fail;
2628 }
2629
2630 /*
2631 * It's not possible to use NTLMSSP with a domain trust account.
2632 */
2633 cli_credentials_set_kerberos_state(creds, CRED_MUST_USE_KERBEROS);
2634 } else {
2635 /*
2636 * We can't use kerberos against an NT4 domain.
2637 *
2638 * We should have a mode that also disallows NTLMSSP here,
2639 * as only NETLOGON SCHANNEL is possible.
2640 */
2641 cli_credentials_set_kerberos_state(creds, CRED_DONT_USE_KERBEROS);
2642 }
2643
2644 ok = cli_credentials_set_username(creds, account_name, CRED_SPECIFIED);
2645 if (!ok) {
2646 status = NT_STATUS_NO_MEMORY;
2647 goto fail;
2648 }
2649
2650 if (cur_pw == NULL) {
2651 ok = cli_credentials_set_nt_hash(creds, &cur_nt_hash, CRED_SPECIFIED);
2652 if (!ok) {
2653 status = NT_STATUS_NO_MEMORY;
2654 goto fail;
2655 }
2656 /*
2657 * We currently can't do kerberos just with an NTHASH.
2658 */
2659 cli_credentials_set_kerberos_state(creds, CRED_DONT_USE_KERBEROS);
2660 goto done;
2661 }
2662
2663 ok = cli_credentials_set_password(creds, cur_pw, CRED_SPECIFIED);
2664 if (!ok) {
2665 status = NT_STATUS_NO_MEMORY;
2666 goto fail;
2667 }
2668
2669 if (prev_pw != NULL) {
2670 ok = cli_credentials_set_old_password(creds, prev_pw, CRED_SPECIFIED);
2671 if (!ok) {
2672 status = NT_STATUS_NO_MEMORY;
2673 goto fail;
2674 }
2675 }
2676
2677 done:
2678 *_creds = creds;
2679 creds = NULL;
2680 status = NT_STATUS_OK;
2681 fail:
2682 TALLOC_FREE(creds);
2683 SAFE_FREE(cur_pw);
2684 SAFE_FREE(prev_pw);
2685 TALLOC_FREE(frame);
2686 return status;
2687 }
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