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s3: Attempt to fix the build without kerberos
[Samba/gebeck_regimport.git] / source3 / passdb / passdb.c
blob6d3f42e720ffc10fb19f75326aa05297315d1fdb
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
34 #undef DBGC_CLASS
35 #define DBGC_CLASS DBGC_PASSDB
36
37 /******************************************************************
38 Get the default domain/netbios name to be used when
39 testing authentication.
40
41 LEGACY: this function provides the legacy domain mapping used with
42 the lp_map_untrusted_to_domain() parameter
43 ******************************************************************/
44
45 const char *my_sam_name(void)
46 {
47 /* Standalone servers can only use the local netbios name */
48 if ( lp_server_role() == ROLE_STANDALONE )
49 return lp_netbios_name();
50
51 /* Default to the DOMAIN name when not specified */
52 return lp_workgroup();
53 }
54
55 /**********************************************************************
56 ***********************************************************************/
57
58 static int samu_destroy(struct samu *user)
59 {
60 data_blob_clear_free( &user->lm_pw );
61 data_blob_clear_free( &user->nt_pw );
62
63 if ( user->plaintext_pw )
64 memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
65
66 return 0;
67 }
68
69 /**********************************************************************
70 generate a new struct samuser
71 ***********************************************************************/
72
73 struct samu *samu_new( TALLOC_CTX *ctx )
74 {
75 struct samu *user;
76
77 if ( !(user = talloc_zero( ctx, struct samu )) ) {
78 DEBUG(0,("samuser_new: Talloc failed!\n"));
79 return NULL;
80 }
81
82 talloc_set_destructor( user, samu_destroy );
83
84 /* no initial methods */
85
86 user->methods = NULL;
87
88 /* Don't change these timestamp settings without a good reason.
89 They are important for NT member server compatibility. */
90
91 user->logon_time = (time_t)0;
92 user->pass_last_set_time = (time_t)0;
93 user->pass_can_change_time = (time_t)0;
94 user->logoff_time = get_time_t_max();
95 user->kickoff_time = get_time_t_max();
96 user->fields_present = 0x00ffffff;
97 user->logon_divs = 168; /* hours per week */
98 user->hours_len = 21; /* 21 times 8 bits = 168 */
99 memset(user->hours, 0xff, user->hours_len); /* available at all hours */
100 user->bad_password_count = 0;
101 user->logon_count = 0;
102 user->unknown_6 = 0x000004ec; /* don't know */
103
104 /* Some parts of samba strlen their pdb_get...() returns,
105 so this keeps the interface unchanged for now. */
106
107 user->username = "";
108 user->domain = "";
109 user->nt_username = "";
110 user->full_name = "";
111 user->home_dir = "";
112 user->logon_script = "";
113 user->profile_path = "";
114 user->acct_desc = "";
115 user->workstations = "";
116 user->comment = "";
117 user->munged_dial = "";
118
119 user->plaintext_pw = NULL;
120
121 /* Unless we know otherwise have a Account Control Bit
122 value of 'normal user'. This helps User Manager, which
123 asks for a filtered list of users. */
124
125 user->acct_ctrl = ACB_NORMAL;
126
127 return user;
128 }
129
130 static int count_commas(const char *str)
131 {
132 int num_commas = 0;
133 const char *comma = str;
134
135 while ((comma = strchr(comma, ',')) != NULL) {
136 comma += 1;
137 num_commas += 1;
138 }
139 return num_commas;
140 }
141
142 /*********************************************************************
143 Initialize a struct samu from a struct passwd including the user
144 and group SIDs. The *user structure is filled out with the Unix
145 attributes and a user SID.
146 *********************************************************************/
147
148 static NTSTATUS samu_set_unix_internal(struct pdb_methods *methods,
149 struct samu *user, const struct passwd *pwd, bool create)
150 {
151 const char *guest_account = lp_guestaccount();
152 const char *domain = lp_netbios_name();
153 char *fullname;
154 uint32_t urid;
155
156 if ( !pwd ) {
157 return NT_STATUS_NO_SUCH_USER;
158 }
159
160 /* Basic properties based upon the Unix account information */
161
162 pdb_set_username(user, pwd->pw_name, PDB_SET);
163
164 fullname = NULL;
165
166 if (count_commas(pwd->pw_gecos) == 3) {
167 /*
168 * Heuristic: This seems to be a gecos field that has been
169 * edited by chfn(1). Only use the part before the first
170 * comma. Fixes bug 5198.
171 */
172 fullname = talloc_strndup(
173 talloc_tos(), pwd->pw_gecos,
174 strchr(pwd->pw_gecos, ',') - pwd->pw_gecos);
175 }
176
177 if (fullname != NULL) {
178 pdb_set_fullname(user, fullname, PDB_SET);
179 } else {
180 pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
181 }
182 TALLOC_FREE(fullname);
183
184 pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
185 #if 0
186 /* This can lead to a primary group of S-1-22-2-XX which
187 will be rejected by other parts of the Samba code.
188 Rely on pdb_get_group_sid() to "Do The Right Thing" (TM)
189 --jerry */
190
191 gid_to_sid(&group_sid, pwd->pw_gid);
192 pdb_set_group_sid(user, &group_sid, PDB_SET);
193 #endif
194
195 /* save the password structure for later use */
196
197 user->unix_pw = tcopy_passwd( user, pwd );
198
199 /* Special case for the guest account which must have a RID of 501 */
200
201 if ( strequal( pwd->pw_name, guest_account ) ) {
202 if ( !pdb_set_user_sid_from_rid(user, DOMAIN_RID_GUEST, PDB_DEFAULT)) {
203 return NT_STATUS_NO_SUCH_USER;
204 }
205 return NT_STATUS_OK;
206 }
207
208 /* Non-guest accounts...Check for a workstation or user account */
209
210 if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
211 /* workstation */
212
213 if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
214 DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n",
215 pwd->pw_name));
216 return NT_STATUS_INVALID_COMPUTER_NAME;
217 }
218 }
219 else {
220 /* user */
221
222 if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
223 DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n",
224 pwd->pw_name));
225 return NT_STATUS_INVALID_ACCOUNT_NAME;
226 }
227
228 /* set some basic attributes */
229
230 pdb_set_profile_path(user, talloc_sub_specified(user,
231 lp_logon_path(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
232 PDB_DEFAULT);
233 pdb_set_homedir(user, talloc_sub_specified(user,
234 lp_logon_home(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
235 PDB_DEFAULT);
236 pdb_set_dir_drive(user, talloc_sub_specified(user,
237 lp_logon_drive(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
238 PDB_DEFAULT);
239 pdb_set_logon_script(user, talloc_sub_specified(user,
240 lp_logon_script(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
241 PDB_DEFAULT);
242 }
243
244 /* Now deal with the user SID. If we have a backend that can generate
245 RIDs, then do so. But sometimes the caller just wanted a structure
246 initialized and will fill in these fields later (such as from a
247 netr_SamInfo3 structure) */
248
249 if ( create && (methods->capabilities(methods) & PDB_CAP_STORE_RIDS)) {
250 uint32_t user_rid;
251 struct dom_sid user_sid;
252
253 if ( !methods->new_rid(methods, &user_rid) ) {
254 DEBUG(3, ("Could not allocate a new RID\n"));
255 return NT_STATUS_ACCESS_DENIED;
256 }
257
258 sid_compose(&user_sid, get_global_sam_sid(), user_rid);
259
260 if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
261 DEBUG(3, ("pdb_set_user_sid failed\n"));
262 return NT_STATUS_INTERNAL_ERROR;
263 }
264
265 return NT_STATUS_OK;
266 }
267
268 /* generate a SID for the user with the RID algorithm */
269
270 urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
271
272 if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
273 return NT_STATUS_INTERNAL_ERROR;
274 }
275
276 return NT_STATUS_OK;
277 }
278
279 /********************************************************************
280 Set the Unix user attributes
281 ********************************************************************/
282
283 NTSTATUS samu_set_unix(struct samu *user, const struct passwd *pwd)
284 {
285 return samu_set_unix_internal( NULL, user, pwd, False );
286 }
287
288 NTSTATUS samu_alloc_rid_unix(struct pdb_methods *methods,
289 struct samu *user, const struct passwd *pwd)
290 {
291 return samu_set_unix_internal( methods, user, pwd, True );
292 }
293
294 /**********************************************************
295 Encode the account control bits into a string.
296 length = length of string to encode into (including terminating
297 null). length *MUST BE MORE THAN 2* !
298 **********************************************************/
299
300 char *pdb_encode_acct_ctrl(uint32_t acct_ctrl, size_t length)
301 {
302 fstring acct_str;
303 char *result;
304
305 size_t i = 0;
306
307 SMB_ASSERT(length <= sizeof(acct_str));
308
309 acct_str[i++] = '[';
310
311 if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
312 if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
313 if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
314 if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
315 if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
316 if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
317 if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
318 if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
319 if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
320 if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
321 if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
322
323 for ( ; i < length - 2 ; i++ )
324 acct_str[i] = ' ';
325
326 i = length - 2;
327 acct_str[i++] = ']';
328 acct_str[i++] = '\0';
329
330 result = talloc_strdup(talloc_tos(), acct_str);
331 SMB_ASSERT(result != NULL);
332 return result;
333 }
334
335 /**********************************************************
336 Decode the account control bits from a string.
337 **********************************************************/
338
339 uint32_t pdb_decode_acct_ctrl(const char *p)
340 {
341 uint32_t acct_ctrl = 0;
342 bool finished = false;
343
344 /*
345 * Check if the account type bits have been encoded after the
346 * NT password (in the form [NDHTUWSLXI]).
347 */
348
349 if (*p != '[')
350 return 0;
351
352 for (p++; *p && !finished; p++) {
353 switch (*p) {
354 case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
355 case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
356 case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
357 case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
358 case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
359 case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
360 case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
361 case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
362 case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
363 case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
364 case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
365 case ' ': { break; }
366 case ':':
367 case '\n':
368 case '\0':
369 case ']':
370 default: { finished = true; }
371 }
372 }
373
374 return acct_ctrl;
375 }
376
377 /*************************************************************
378 Routine to set 32 hex password characters from a 16 byte array.
379 **************************************************************/
380
381 void pdb_sethexpwd(char p[33], const unsigned char *pwd, uint32_t acct_ctrl)
382 {
383 if (pwd != NULL) {
384 int i;
385 for (i = 0; i < 16; i++)
386 slprintf(&p[i*2], 3, "%02X", pwd[i]);
387 } else {
388 if (acct_ctrl & ACB_PWNOTREQ)
389 strlcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
390 else
391 strlcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
392 }
393 }
394
395 /*************************************************************
396 Routine to get the 32 hex characters and turn them
397 into a 16 byte array.
398 **************************************************************/
399
400 bool pdb_gethexpwd(const char *p, unsigned char *pwd)
401 {
402 int i;
403 unsigned char lonybble, hinybble;
404 const char *hexchars = "0123456789ABCDEF";
405 char *p1, *p2;
406
407 if (!p)
408 return false;
409
410 for (i = 0; i < 32; i += 2) {
411 hinybble = toupper_m(p[i]);
412 lonybble = toupper_m(p[i + 1]);
413
414 p1 = strchr(hexchars, hinybble);
415 p2 = strchr(hexchars, lonybble);
416
417 if (!p1 || !p2)
418 return false;
419
420 hinybble = PTR_DIFF(p1, hexchars);
421 lonybble = PTR_DIFF(p2, hexchars);
422
423 pwd[i / 2] = (hinybble << 4) | lonybble;
424 }
425 return true;
426 }
427
428 /*************************************************************
429 Routine to set 42 hex hours characters from a 21 byte array.
430 **************************************************************/
431
432 void pdb_sethexhours(char *p, const unsigned char *hours)
433 {
434 if (hours != NULL) {
435 int i;
436 for (i = 0; i < 21; i++) {
437 slprintf(&p[i*2], 3, "%02X", hours[i]);
438 }
439 } else {
440 strlcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 44);
441 }
442 }
443
444 /*************************************************************
445 Routine to get the 42 hex characters and turn them
446 into a 21 byte array.
447 **************************************************************/
448
449 bool pdb_gethexhours(const char *p, unsigned char *hours)
450 {
451 int i;
452 unsigned char lonybble, hinybble;
453 const char *hexchars = "0123456789ABCDEF";
454 char *p1, *p2;
455
456 if (!p) {
457 return (False);
458 }
459
460 for (i = 0; i < 42; i += 2) {
461 hinybble = toupper_m(p[i]);
462 lonybble = toupper_m(p[i + 1]);
463
464 p1 = strchr(hexchars, hinybble);
465 p2 = strchr(hexchars, lonybble);
466
467 if (!p1 || !p2) {
468 return (False);
469 }
470
471 hinybble = PTR_DIFF(p1, hexchars);
472 lonybble = PTR_DIFF(p2, hexchars);
473
474 hours[i / 2] = (hinybble << 4) | lonybble;
475 }
476 return (True);
477 }
478
479 /********************************************************************
480 ********************************************************************/
481
482 int algorithmic_rid_base(void)
483 {
484 int rid_offset;
485
486 rid_offset = lp_algorithmic_rid_base();
487
488 if (rid_offset < BASE_RID) {
489 /* Try to prevent admin foot-shooting, we can't put algorithmic
490 rids below 1000, that's the 'well known RIDs' on NT */
491 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
492 rid_offset = BASE_RID;
493 }
494 if (rid_offset & 1) {
495 DEBUG(0, ("algorithmic rid base must be even\n"));
496 rid_offset += 1;
497 }
498 return rid_offset;
499 }
500
501 /*******************************************************************
502 Converts NT user RID to a UNIX uid.
503 ********************************************************************/
504
505 uid_t algorithmic_pdb_user_rid_to_uid(uint32_t user_rid)
506 {
507 int rid_offset = algorithmic_rid_base();
508 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
509 }
510
511 uid_t max_algorithmic_uid(void)
512 {
513 return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
514 }
515
516 /*******************************************************************
517 converts UNIX uid to an NT User RID.
518 ********************************************************************/
519
520 uint32_t algorithmic_pdb_uid_to_user_rid(uid_t uid)
521 {
522 int rid_offset = algorithmic_rid_base();
523 return (((((uint32_t)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
524 }
525
526 /*******************************************************************
527 Converts NT group RID to a UNIX gid.
528 ********************************************************************/
529
530 gid_t pdb_group_rid_to_gid(uint32_t group_rid)
531 {
532 int rid_offset = algorithmic_rid_base();
533 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
534 }
535
536 gid_t max_algorithmic_gid(void)
537 {
538 return pdb_group_rid_to_gid(0xffffffff);
539 }
540
541 /*******************************************************************
542 converts NT Group RID to a UNIX uid.
543
544 warning: you must not call that function only
545 you must do a call to the group mapping first.
546 there is not anymore a direct link between the gid and the rid.
547 ********************************************************************/
548
549 uint32_t algorithmic_pdb_gid_to_group_rid(gid_t gid)
550 {
551 int rid_offset = algorithmic_rid_base();
552 return (((((uint32_t)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
553 }
554
555 /*******************************************************************
556 Decides if a RID is a well known RID.
557 ********************************************************************/
558
559 static bool rid_is_well_known(uint32_t rid)
560 {
561 /* Not using rid_offset here, because this is the actual
562 NT fixed value (1000) */
563
564 return (rid < BASE_RID);
565 }
566
567 /*******************************************************************
568 Decides if a RID is a user or group RID.
569 ********************************************************************/
570
571 bool algorithmic_pdb_rid_is_user(uint32_t rid)
572 {
573 if ( rid_is_well_known(rid) ) {
574 /*
575 * The only well known user RIDs are DOMAIN_RID_ADMINISTRATOR
576 * and DOMAIN_RID_GUEST.
577 */
578 if(rid == DOMAIN_RID_ADMINISTRATOR || rid == DOMAIN_RID_GUEST)
579 return True;
580 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
581 return True;
582 }
583 return False;
584 }
585
586 /*******************************************************************
587 Convert a name into a SID. Used in the lookup name rpc.
588 ********************************************************************/
589
590 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
591 enum lsa_SidType *type)
592 {
593 GROUP_MAP *map;
594 bool ret;
595
596 /* Windows treats "MACHINE\None" as a special name for
597 rid 513 on non-DCs. You cannot create a user or group
598 name "None" on Windows. You will get an error that
599 the group already exists. */
600
601 if ( strequal( name, "None" ) ) {
602 *rid = DOMAIN_RID_USERS;
603 *type = SID_NAME_DOM_GRP;
604
605 return True;
606 }
607
608 /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
609 * correctly in the case where foo also exists as a user. If the flag
610 * is set, don't look for users at all. */
611
612 if ((flags & LOOKUP_NAME_GROUP) == 0) {
613 struct samu *sam_account = NULL;
614 struct dom_sid user_sid;
615
616 if ( !(sam_account = samu_new( NULL )) ) {
617 return False;
618 }
619
620 become_root();
621 ret = pdb_getsampwnam(sam_account, name);
622 unbecome_root();
623
624 if (ret) {
625 sid_copy(&user_sid, pdb_get_user_sid(sam_account));
626 }
627
628 TALLOC_FREE(sam_account);
629
630 if (ret) {
631 if (!sid_check_is_in_our_domain(&user_sid)) {
632 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
633 name, sid_string_dbg(&user_sid)));
634 return False;
635 }
636
637 sid_peek_rid(&user_sid, rid);
638 *type = SID_NAME_USER;
639 return True;
640 }
641 }
642
643 /*
644 * Maybe it is a group ?
645 */
646
647 map = talloc_zero(NULL, GROUP_MAP);
648 if (!map) {
649 return false;
650 }
651
652 become_root();
653 ret = pdb_getgrnam(map, name);
654 unbecome_root();
655
656 if (!ret) {
657 TALLOC_FREE(map);
658 return False;
659 }
660
661 /* BUILTIN groups are looked up elsewhere */
662 if (!sid_check_is_in_our_domain(&map->sid)) {
663 DEBUG(10, ("Found group %s (%s) not in our domain -- "
664 "ignoring.", name, sid_string_dbg(&map->sid)));
665 TALLOC_FREE(map);
666 return False;
667 }
668
669 /* yes it's a mapped group */
670 sid_peek_rid(&map->sid, rid);
671 *type = map->sid_name_use;
672 TALLOC_FREE(map);
673 return True;
674 }
675
676 /*************************************************************
677 Change a password entry in the local passdb backend.
678
679 Assumptions:
680 - always called as root
681 - ignores the account type except when adding a new account
682 - will create/delete the unix account if the relative
683 add/delete user script is configured
684
685 *************************************************************/
686
687 NTSTATUS local_password_change(const char *user_name,
688 int local_flags,
689 const char *new_passwd,
690 char **pp_err_str,
691 char **pp_msg_str)
692 {
693 TALLOC_CTX *tosctx;
694 struct samu *sam_pass;
695 uint32_t acb;
696 uint32_t rid;
697 NTSTATUS result;
698 bool user_exists;
699 int ret = -1;
700
701 *pp_err_str = NULL;
702 *pp_msg_str = NULL;
703
704 tosctx = talloc_tos();
705
706 sam_pass = samu_new(tosctx);
707 if (!sam_pass) {
708 result = NT_STATUS_NO_MEMORY;
709 goto done;
710 }
711
712 /* Get the smb passwd entry for this user */
713 user_exists = pdb_getsampwnam(sam_pass, user_name);
714
715 /* Check delete first, we don't need to do anything else if we
716 * are going to delete the acocunt */
717 if (user_exists && (local_flags & LOCAL_DELETE_USER)) {
718
719 result = pdb_delete_user(tosctx, sam_pass);
720 if (!NT_STATUS_IS_OK(result)) {
721 ret = asprintf(pp_err_str,
722 "Failed to delete entry for user %s.\n",
723 user_name);
724 if (ret < 0) {
725 *pp_err_str = NULL;
726 }
727 result = NT_STATUS_UNSUCCESSFUL;
728 } else {
729 ret = asprintf(pp_msg_str,
730 "Deleted user %s.\n",
731 user_name);
732 if (ret < 0) {
733 *pp_msg_str = NULL;
734 }
735 }
736 goto done;
737 }
738
739 if (user_exists && (local_flags & LOCAL_ADD_USER)) {
740 /* the entry already existed */
741 local_flags &= ~LOCAL_ADD_USER;
742 }
743
744 if (!user_exists && !(local_flags & LOCAL_ADD_USER)) {
745 ret = asprintf(pp_err_str,
746 "Failed to find entry for user %s.\n",
747 user_name);
748 if (ret < 0) {
749 *pp_err_str = NULL;
750 }
751 result = NT_STATUS_NO_SUCH_USER;
752 goto done;
753 }
754
755 /* First thing add the new user if we are required to do so */
756 if (local_flags & LOCAL_ADD_USER) {
757
758 if (local_flags & LOCAL_TRUST_ACCOUNT) {
759 acb = ACB_WSTRUST;
760 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
761 acb = ACB_DOMTRUST;
762 } else {
763 acb = ACB_NORMAL;
764 }
765
766 result = pdb_create_user(tosctx, user_name, acb, &rid);
767 if (!NT_STATUS_IS_OK(result)) {
768 ret = asprintf(pp_err_str,
769 "Failed to add entry for user %s.\n",
770 user_name);
771 if (ret < 0) {
772 *pp_err_str = NULL;
773 }
774 result = NT_STATUS_UNSUCCESSFUL;
775 goto done;
776 }
777
778 sam_pass = samu_new(tosctx);
779 if (!sam_pass) {
780 result = NT_STATUS_NO_MEMORY;
781 goto done;
782 }
783
784 /* Now get back the smb passwd entry for this new user */
785 user_exists = pdb_getsampwnam(sam_pass, user_name);
786 if (!user_exists) {
787 ret = asprintf(pp_err_str,
788 "Failed to add entry for user %s.\n",
789 user_name);
790 if (ret < 0) {
791 *pp_err_str = NULL;
792 }
793 result = NT_STATUS_UNSUCCESSFUL;
794 goto done;
795 }
796 }
797
798 acb = pdb_get_acct_ctrl(sam_pass);
799
800 /*
801 * We are root - just write the new password
802 * and the valid last change time.
803 */
804 if ((local_flags & LOCAL_SET_NO_PASSWORD) && !(acb & ACB_PWNOTREQ)) {
805 acb |= ACB_PWNOTREQ;
806 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
807 ret = asprintf(pp_err_str,
808 "Failed to set 'no password required' "
809 "flag for user %s.\n", user_name);
810 if (ret < 0) {
811 *pp_err_str = NULL;
812 }
813 result = NT_STATUS_UNSUCCESSFUL;
814 goto done;
815 }
816 }
817
818 if (local_flags & LOCAL_SET_PASSWORD) {
819 /*
820 * If we're dealing with setting a completely empty user account
821 * ie. One with a password of 'XXXX', but not set disabled (like
822 * an account created from scratch) then if the old password was
823 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
824 * We remove that as we're giving this user their first password
825 * and the decision hasn't really been made to disable them (ie.
826 * don't create them disabled). JRA.
827 */
828 if ((pdb_get_lanman_passwd(sam_pass) == NULL) &&
829 (acb & ACB_DISABLED)) {
830 acb &= (~ACB_DISABLED);
831 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
832 ret = asprintf(pp_err_str,
833 "Failed to unset 'disabled' "
834 "flag for user %s.\n",
835 user_name);
836 if (ret < 0) {
837 *pp_err_str = NULL;
838 }
839 result = NT_STATUS_UNSUCCESSFUL;
840 goto done;
841 }
842 }
843
844 acb &= (~ACB_PWNOTREQ);
845 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
846 ret = asprintf(pp_err_str,
847 "Failed to unset 'no password required'"
848 " flag for user %s.\n", user_name);
849 if (ret < 0) {
850 *pp_err_str = NULL;
851 }
852 result = NT_STATUS_UNSUCCESSFUL;
853 goto done;
854 }
855
856 if (!pdb_set_plaintext_passwd(sam_pass, new_passwd)) {
857 ret = asprintf(pp_err_str,
858 "Failed to set password for "
859 "user %s.\n", user_name);
860 if (ret < 0) {
861 *pp_err_str = NULL;
862 }
863 result = NT_STATUS_UNSUCCESSFUL;
864 goto done;
865 }
866 }
867
868 if ((local_flags & LOCAL_DISABLE_USER) && !(acb & ACB_DISABLED)) {
869 acb |= ACB_DISABLED;
870 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
871 ret = asprintf(pp_err_str,
872 "Failed to set 'disabled' flag for "
873 "user %s.\n", user_name);
874 if (ret < 0) {
875 *pp_err_str = NULL;
876 }
877 result = NT_STATUS_UNSUCCESSFUL;
878 goto done;
879 }
880 }
881
882 if ((local_flags & LOCAL_ENABLE_USER) && (acb & ACB_DISABLED)) {
883 acb &= (~ACB_DISABLED);
884 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
885 ret = asprintf(pp_err_str,
886 "Failed to unset 'disabled' flag for "
887 "user %s.\n", user_name);
888 if (ret < 0) {
889 *pp_err_str = NULL;
890 }
891 result = NT_STATUS_UNSUCCESSFUL;
892 goto done;
893 }
894 }
895
896 /* now commit changes if any */
897 result = pdb_update_sam_account(sam_pass);
898 if (!NT_STATUS_IS_OK(result)) {
899 ret = asprintf(pp_err_str,
900 "Failed to modify entry for user %s.\n",
901 user_name);
902 if (ret < 0) {
903 *pp_err_str = NULL;
904 }
905 goto done;
906 }
907
908 if (local_flags & LOCAL_ADD_USER) {
909 ret = asprintf(pp_msg_str, "Added user %s.\n", user_name);
910 } else if (local_flags & LOCAL_DISABLE_USER) {
911 ret = asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
912 } else if (local_flags & LOCAL_ENABLE_USER) {
913 ret = asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
914 } else if (local_flags & LOCAL_SET_NO_PASSWORD) {
915 ret = asprintf(pp_msg_str,
916 "User %s password set to none.\n", user_name);
917 }
918
919 if (ret < 0) {
920 *pp_msg_str = NULL;
921 }
922
923 result = NT_STATUS_OK;
924
925 done:
926 TALLOC_FREE(sam_pass);
927 return result;
928 }
929
930 /**********************************************************************
931 Marshall/unmarshall struct samu structs.
932 *********************************************************************/
933
934 #define SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
935 #define SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
936 #define SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
937 #define SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
938 /* nothing changed between V3 and V4 */
939
940 /*********************************************************************
941 *********************************************************************/
942
943 static bool init_samu_from_buffer_v0(struct samu *sampass, uint8_t *buf, uint32_t buflen)
944 {
945
946 /* times are stored as 32bit integer
947 take care on system with 64bit wide time_t
948 --SSS */
949 uint32_t logon_time,
950 logoff_time,
951 kickoff_time,
952 pass_last_set_time,
953 pass_can_change_time,
954 pass_must_change_time;
955 char *username = NULL;
956 char *domain = NULL;
957 char *nt_username = NULL;
958 char *dir_drive = NULL;
959 char *unknown_str = NULL;
960 char *munged_dial = NULL;
961 char *fullname = NULL;
962 char *homedir = NULL;
963 char *logon_script = NULL;
964 char *profile_path = NULL;
965 char *acct_desc = NULL;
966 char *workstations = NULL;
967 uint32_t username_len, domain_len, nt_username_len,
968 dir_drive_len, unknown_str_len, munged_dial_len,
969 fullname_len, homedir_len, logon_script_len,
970 profile_path_len, acct_desc_len, workstations_len;
971
972 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
973 uint16_t acct_ctrl, logon_divs;
974 uint16_t bad_password_count, logon_count;
975 uint8_t *hours = NULL;
976 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
977 uint32_t len = 0;
978 uint32_t lm_pw_len, nt_pw_len, hourslen;
979 bool ret = True;
980
981 if(sampass == NULL || buf == NULL) {
982 DEBUG(0, ("init_samu_from_buffer_v0: NULL parameters found!\n"));
983 return False;
984 }
985
986 /* SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
987
988 /* unpack the buffer into variables */
989 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V0,
990 &logon_time, /* d */
991 &logoff_time, /* d */
992 &kickoff_time, /* d */
993 &pass_last_set_time, /* d */
994 &pass_can_change_time, /* d */
995 &pass_must_change_time, /* d */
996 &username_len, &username, /* B */
997 &domain_len, &domain, /* B */
998 &nt_username_len, &nt_username, /* B */
999 &fullname_len, &fullname, /* B */
1000 &homedir_len, &homedir, /* B */
1001 &dir_drive_len, &dir_drive, /* B */
1002 &logon_script_len, &logon_script, /* B */
1003 &profile_path_len, &profile_path, /* B */
1004 &acct_desc_len, &acct_desc, /* B */
1005 &workstations_len, &workstations, /* B */
1006 &unknown_str_len, &unknown_str, /* B */
1007 &munged_dial_len, &munged_dial, /* B */
1008 &user_rid, /* d */
1009 &group_rid, /* d */
1010 &lm_pw_len, &lm_pw_ptr, /* B */
1011 &nt_pw_len, &nt_pw_ptr, /* B */
1012 &acct_ctrl, /* w */
1013 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1014 &logon_divs, /* w */
1015 &hours_len, /* d */
1016 &hourslen, &hours, /* B */
1017 &bad_password_count, /* w */
1018 &logon_count, /* w */
1019 &unknown_6); /* d */
1020
1021 if (len == (uint32_t) -1) {
1022 ret = False;
1023 goto done;
1024 }
1025
1026 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1027 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1028 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1029 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1030 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1031
1032 pdb_set_username(sampass, username, PDB_SET);
1033 pdb_set_domain(sampass, domain, PDB_SET);
1034 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1035 pdb_set_fullname(sampass, fullname, PDB_SET);
1036
1037 if (homedir) {
1038 pdb_set_homedir(sampass, homedir, PDB_SET);
1039 }
1040 else {
1041 pdb_set_homedir(sampass,
1042 talloc_sub_basic(sampass, username, domain,
1043 lp_logon_home()),
1044 PDB_DEFAULT);
1045 }
1046
1047 if (dir_drive)
1048 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1049 else {
1050 pdb_set_dir_drive(sampass,
1051 talloc_sub_basic(sampass, username, domain,
1052 lp_logon_drive()),
1053 PDB_DEFAULT);
1054 }
1055
1056 if (logon_script)
1057 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1058 else {
1059 pdb_set_logon_script(sampass,
1060 talloc_sub_basic(sampass, username, domain,
1061 lp_logon_script()),
1062 PDB_DEFAULT);
1063 }
1064
1065 if (profile_path) {
1066 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1067 } else {
1068 pdb_set_profile_path(sampass,
1069 talloc_sub_basic(sampass, username, domain,
1070 lp_logon_path()),
1071 PDB_DEFAULT);
1072 }
1073
1074 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1075 pdb_set_workstations(sampass, workstations, PDB_SET);
1076 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1077
1078 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1079 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1080 ret = False;
1081 goto done;
1082 }
1083 }
1084
1085 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1086 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1087 ret = False;
1088 goto done;
1089 }
1090 }
1091
1092 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1093 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1094 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1095 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1096 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1097 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1098 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1099 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1100 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1101 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1102
1103 done:
1104
1105 SAFE_FREE(username);
1106 SAFE_FREE(domain);
1107 SAFE_FREE(nt_username);
1108 SAFE_FREE(fullname);
1109 SAFE_FREE(homedir);
1110 SAFE_FREE(dir_drive);
1111 SAFE_FREE(logon_script);
1112 SAFE_FREE(profile_path);
1113 SAFE_FREE(acct_desc);
1114 SAFE_FREE(workstations);
1115 SAFE_FREE(munged_dial);
1116 SAFE_FREE(unknown_str);
1117 SAFE_FREE(lm_pw_ptr);
1118 SAFE_FREE(nt_pw_ptr);
1119 SAFE_FREE(hours);
1120
1121 return ret;
1122 }
1123
1124 /*********************************************************************
1125 *********************************************************************/
1126
1127 static bool init_samu_from_buffer_v1(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1128 {
1129
1130 /* times are stored as 32bit integer
1131 take care on system with 64bit wide time_t
1132 --SSS */
1133 uint32_t logon_time,
1134 logoff_time,
1135 kickoff_time,
1136 bad_password_time,
1137 pass_last_set_time,
1138 pass_can_change_time,
1139 pass_must_change_time;
1140 char *username = NULL;
1141 char *domain = NULL;
1142 char *nt_username = NULL;
1143 char *dir_drive = NULL;
1144 char *unknown_str = NULL;
1145 char *munged_dial = NULL;
1146 char *fullname = NULL;
1147 char *homedir = NULL;
1148 char *logon_script = NULL;
1149 char *profile_path = NULL;
1150 char *acct_desc = NULL;
1151 char *workstations = NULL;
1152 uint32_t username_len, domain_len, nt_username_len,
1153 dir_drive_len, unknown_str_len, munged_dial_len,
1154 fullname_len, homedir_len, logon_script_len,
1155 profile_path_len, acct_desc_len, workstations_len;
1156
1157 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
1158 uint16_t acct_ctrl, logon_divs;
1159 uint16_t bad_password_count, logon_count;
1160 uint8_t *hours = NULL;
1161 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1162 uint32_t len = 0;
1163 uint32_t lm_pw_len, nt_pw_len, hourslen;
1164 bool ret = True;
1165
1166 if(sampass == NULL || buf == NULL) {
1167 DEBUG(0, ("init_samu_from_buffer_v1: NULL parameters found!\n"));
1168 return False;
1169 }
1170
1171 /* SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1172
1173 /* unpack the buffer into variables */
1174 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V1,
1175 &logon_time, /* d */
1176 &logoff_time, /* d */
1177 &kickoff_time, /* d */
1178 /* Change from V0 is addition of bad_password_time field. */
1179 &bad_password_time, /* d */
1180 &pass_last_set_time, /* d */
1181 &pass_can_change_time, /* d */
1182 &pass_must_change_time, /* d */
1183 &username_len, &username, /* B */
1184 &domain_len, &domain, /* B */
1185 &nt_username_len, &nt_username, /* B */
1186 &fullname_len, &fullname, /* B */
1187 &homedir_len, &homedir, /* B */
1188 &dir_drive_len, &dir_drive, /* B */
1189 &logon_script_len, &logon_script, /* B */
1190 &profile_path_len, &profile_path, /* B */
1191 &acct_desc_len, &acct_desc, /* B */
1192 &workstations_len, &workstations, /* B */
1193 &unknown_str_len, &unknown_str, /* B */
1194 &munged_dial_len, &munged_dial, /* B */
1195 &user_rid, /* d */
1196 &group_rid, /* d */
1197 &lm_pw_len, &lm_pw_ptr, /* B */
1198 &nt_pw_len, &nt_pw_ptr, /* B */
1199 &acct_ctrl, /* w */
1200 &remove_me, /* d */
1201 &logon_divs, /* w */
1202 &hours_len, /* d */
1203 &hourslen, &hours, /* B */
1204 &bad_password_count, /* w */
1205 &logon_count, /* w */
1206 &unknown_6); /* d */
1207
1208 if (len == (uint32_t) -1) {
1209 ret = False;
1210 goto done;
1211 }
1212
1213 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1214 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1215 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1216
1217 /* Change from V0 is addition of bad_password_time field. */
1218 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1219 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1220 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1221
1222 pdb_set_username(sampass, username, PDB_SET);
1223 pdb_set_domain(sampass, domain, PDB_SET);
1224 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1225 pdb_set_fullname(sampass, fullname, PDB_SET);
1226
1227 if (homedir) {
1228 pdb_set_homedir(sampass, homedir, PDB_SET);
1229 }
1230 else {
1231 pdb_set_homedir(sampass,
1232 talloc_sub_basic(sampass, username, domain,
1233 lp_logon_home()),
1234 PDB_DEFAULT);
1235 }
1236
1237 if (dir_drive)
1238 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1239 else {
1240 pdb_set_dir_drive(sampass,
1241 talloc_sub_basic(sampass, username, domain,
1242 lp_logon_drive()),
1243 PDB_DEFAULT);
1244 }
1245
1246 if (logon_script)
1247 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1248 else {
1249 pdb_set_logon_script(sampass,
1250 talloc_sub_basic(sampass, username, domain,
1251 lp_logon_script()),
1252 PDB_DEFAULT);
1253 }
1254
1255 if (profile_path) {
1256 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1257 } else {
1258 pdb_set_profile_path(sampass,
1259 talloc_sub_basic(sampass, username, domain,
1260 lp_logon_path()),
1261 PDB_DEFAULT);
1262 }
1263
1264 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1265 pdb_set_workstations(sampass, workstations, PDB_SET);
1266 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1267
1268 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1269 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1270 ret = False;
1271 goto done;
1272 }
1273 }
1274
1275 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1276 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1277 ret = False;
1278 goto done;
1279 }
1280 }
1281
1282 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1283
1284 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1285 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1286 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1287 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1288 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1289 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1290 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1291 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1292 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1293
1294 done:
1295
1296 SAFE_FREE(username);
1297 SAFE_FREE(domain);
1298 SAFE_FREE(nt_username);
1299 SAFE_FREE(fullname);
1300 SAFE_FREE(homedir);
1301 SAFE_FREE(dir_drive);
1302 SAFE_FREE(logon_script);
1303 SAFE_FREE(profile_path);
1304 SAFE_FREE(acct_desc);
1305 SAFE_FREE(workstations);
1306 SAFE_FREE(munged_dial);
1307 SAFE_FREE(unknown_str);
1308 SAFE_FREE(lm_pw_ptr);
1309 SAFE_FREE(nt_pw_ptr);
1310 SAFE_FREE(hours);
1311
1312 return ret;
1313 }
1314
1315 static bool init_samu_from_buffer_v2(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1316 {
1317
1318 /* times are stored as 32bit integer
1319 take care on system with 64bit wide time_t
1320 --SSS */
1321 uint32_t logon_time,
1322 logoff_time,
1323 kickoff_time,
1324 bad_password_time,
1325 pass_last_set_time,
1326 pass_can_change_time,
1327 pass_must_change_time;
1328 char *username = NULL;
1329 char *domain = NULL;
1330 char *nt_username = NULL;
1331 char *dir_drive = NULL;
1332 char *unknown_str = NULL;
1333 char *munged_dial = NULL;
1334 char *fullname = NULL;
1335 char *homedir = NULL;
1336 char *logon_script = NULL;
1337 char *profile_path = NULL;
1338 char *acct_desc = NULL;
1339 char *workstations = NULL;
1340 uint32_t username_len, domain_len, nt_username_len,
1341 dir_drive_len, unknown_str_len, munged_dial_len,
1342 fullname_len, homedir_len, logon_script_len,
1343 profile_path_len, acct_desc_len, workstations_len;
1344
1345 uint32_t user_rid, group_rid, hours_len, unknown_6;
1346 uint16_t acct_ctrl, logon_divs;
1347 uint16_t bad_password_count, logon_count;
1348 uint8_t *hours = NULL;
1349 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1350 uint32_t len = 0;
1351 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1352 uint32_t pwHistLen = 0;
1353 bool ret = True;
1354 fstring tmp_string;
1355 bool expand_explicit = lp_passdb_expand_explicit();
1356
1357 if(sampass == NULL || buf == NULL) {
1358 DEBUG(0, ("init_samu_from_buffer_v2: NULL parameters found!\n"));
1359 return False;
1360 }
1361
1362 /* SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1363
1364 /* unpack the buffer into variables */
1365 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V2,
1366 &logon_time, /* d */
1367 &logoff_time, /* d */
1368 &kickoff_time, /* d */
1369 &bad_password_time, /* d */
1370 &pass_last_set_time, /* d */
1371 &pass_can_change_time, /* d */
1372 &pass_must_change_time, /* d */
1373 &username_len, &username, /* B */
1374 &domain_len, &domain, /* B */
1375 &nt_username_len, &nt_username, /* B */
1376 &fullname_len, &fullname, /* B */
1377 &homedir_len, &homedir, /* B */
1378 &dir_drive_len, &dir_drive, /* B */
1379 &logon_script_len, &logon_script, /* B */
1380 &profile_path_len, &profile_path, /* B */
1381 &acct_desc_len, &acct_desc, /* B */
1382 &workstations_len, &workstations, /* B */
1383 &unknown_str_len, &unknown_str, /* B */
1384 &munged_dial_len, &munged_dial, /* B */
1385 &user_rid, /* d */
1386 &group_rid, /* d */
1387 &lm_pw_len, &lm_pw_ptr, /* B */
1388 &nt_pw_len, &nt_pw_ptr, /* B */
1389 /* Change from V1 is addition of password history field. */
1390 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1391 &acct_ctrl, /* w */
1392 /* Also "remove_me" field was removed. */
1393 &logon_divs, /* w */
1394 &hours_len, /* d */
1395 &hourslen, &hours, /* B */
1396 &bad_password_count, /* w */
1397 &logon_count, /* w */
1398 &unknown_6); /* d */
1399
1400 if (len == (uint32_t) -1) {
1401 ret = False;
1402 goto done;
1403 }
1404
1405 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1406 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1407 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1408 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1409 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1410 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1411
1412 pdb_set_username(sampass, username, PDB_SET);
1413 pdb_set_domain(sampass, domain, PDB_SET);
1414 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1415 pdb_set_fullname(sampass, fullname, PDB_SET);
1416
1417 if (homedir) {
1418 fstrcpy( tmp_string, homedir );
1419 if (expand_explicit) {
1420 standard_sub_basic( username, domain, tmp_string,
1421 sizeof(tmp_string) );
1422 }
1423 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1424 }
1425 else {
1426 pdb_set_homedir(sampass,
1427 talloc_sub_basic(sampass, username, domain,
1428 lp_logon_home()),
1429 PDB_DEFAULT);
1430 }
1431
1432 if (dir_drive)
1433 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1434 else
1435 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1436
1437 if (logon_script) {
1438 fstrcpy( tmp_string, logon_script );
1439 if (expand_explicit) {
1440 standard_sub_basic( username, domain, tmp_string,
1441 sizeof(tmp_string) );
1442 }
1443 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1444 }
1445 else {
1446 pdb_set_logon_script(sampass,
1447 talloc_sub_basic(sampass, username, domain,
1448 lp_logon_script()),
1449 PDB_DEFAULT);
1450 }
1451
1452 if (profile_path) {
1453 fstrcpy( tmp_string, profile_path );
1454 if (expand_explicit) {
1455 standard_sub_basic( username, domain, tmp_string,
1456 sizeof(tmp_string) );
1457 }
1458 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1459 }
1460 else {
1461 pdb_set_profile_path(sampass,
1462 talloc_sub_basic(sampass, username, domain,
1463 lp_logon_path()),
1464 PDB_DEFAULT);
1465 }
1466
1467 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1468 pdb_set_workstations(sampass, workstations, PDB_SET);
1469 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1470
1471 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1472 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1473 ret = False;
1474 goto done;
1475 }
1476 }
1477
1478 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1479 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1480 ret = False;
1481 goto done;
1482 }
1483 }
1484
1485 /* Change from V1 is addition of password history field. */
1486 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1487 if (pwHistLen) {
1488 uint8_t *pw_hist = SMB_MALLOC_ARRAY(uint8_t, pwHistLen * PW_HISTORY_ENTRY_LEN);
1489 if (!pw_hist) {
1490 ret = False;
1491 goto done;
1492 }
1493 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1494 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1495 int i;
1496 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1497 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1498 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1499 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1500 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1501 PW_HISTORY_ENTRY_LEN);
1502 }
1503 }
1504 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1505 SAFE_FREE(pw_hist);
1506 ret = False;
1507 goto done;
1508 }
1509 SAFE_FREE(pw_hist);
1510 } else {
1511 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1512 }
1513
1514 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1515 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1516 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1517 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1518 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1519 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1520 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1521 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1522 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1523
1524 done:
1525
1526 SAFE_FREE(username);
1527 SAFE_FREE(domain);
1528 SAFE_FREE(nt_username);
1529 SAFE_FREE(fullname);
1530 SAFE_FREE(homedir);
1531 SAFE_FREE(dir_drive);
1532 SAFE_FREE(logon_script);
1533 SAFE_FREE(profile_path);
1534 SAFE_FREE(acct_desc);
1535 SAFE_FREE(workstations);
1536 SAFE_FREE(munged_dial);
1537 SAFE_FREE(unknown_str);
1538 SAFE_FREE(lm_pw_ptr);
1539 SAFE_FREE(nt_pw_ptr);
1540 SAFE_FREE(nt_pw_hist_ptr);
1541 SAFE_FREE(hours);
1542
1543 return ret;
1544 }
1545
1546 /*********************************************************************
1547 *********************************************************************/
1548
1549 static bool init_samu_from_buffer_v3(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1550 {
1551
1552 /* times are stored as 32bit integer
1553 take care on system with 64bit wide time_t
1554 --SSS */
1555 uint32_t logon_time,
1556 logoff_time,
1557 kickoff_time,
1558 bad_password_time,
1559 pass_last_set_time,
1560 pass_can_change_time,
1561 pass_must_change_time;
1562 char *username = NULL;
1563 char *domain = NULL;
1564 char *nt_username = NULL;
1565 char *dir_drive = NULL;
1566 char *comment = NULL;
1567 char *munged_dial = NULL;
1568 char *fullname = NULL;
1569 char *homedir = NULL;
1570 char *logon_script = NULL;
1571 char *profile_path = NULL;
1572 char *acct_desc = NULL;
1573 char *workstations = NULL;
1574 uint32_t username_len, domain_len, nt_username_len,
1575 dir_drive_len, comment_len, munged_dial_len,
1576 fullname_len, homedir_len, logon_script_len,
1577 profile_path_len, acct_desc_len, workstations_len;
1578
1579 uint32_t user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
1580 uint16_t logon_divs;
1581 uint16_t bad_password_count, logon_count;
1582 uint8_t *hours = NULL;
1583 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1584 uint32_t len = 0;
1585 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1586 uint32_t pwHistLen = 0;
1587 bool ret = True;
1588 fstring tmp_string;
1589 bool expand_explicit = lp_passdb_expand_explicit();
1590
1591 if(sampass == NULL || buf == NULL) {
1592 DEBUG(0, ("init_samu_from_buffer_v3: NULL parameters found!\n"));
1593 return False;
1594 }
1595
1596 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1597
1598 /* unpack the buffer into variables */
1599 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V3,
1600 &logon_time, /* d */
1601 &logoff_time, /* d */
1602 &kickoff_time, /* d */
1603 &bad_password_time, /* d */
1604 &pass_last_set_time, /* d */
1605 &pass_can_change_time, /* d */
1606 &pass_must_change_time, /* d */
1607 &username_len, &username, /* B */
1608 &domain_len, &domain, /* B */
1609 &nt_username_len, &nt_username, /* B */
1610 &fullname_len, &fullname, /* B */
1611 &homedir_len, &homedir, /* B */
1612 &dir_drive_len, &dir_drive, /* B */
1613 &logon_script_len, &logon_script, /* B */
1614 &profile_path_len, &profile_path, /* B */
1615 &acct_desc_len, &acct_desc, /* B */
1616 &workstations_len, &workstations, /* B */
1617 &comment_len, &comment, /* B */
1618 &munged_dial_len, &munged_dial, /* B */
1619 &user_rid, /* d */
1620 &group_rid, /* d */
1621 &lm_pw_len, &lm_pw_ptr, /* B */
1622 &nt_pw_len, &nt_pw_ptr, /* B */
1623 /* Change from V1 is addition of password history field. */
1624 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1625 /* Change from V2 is the uint32_t acb_mask */
1626 &acct_ctrl, /* d */
1627 /* Also "remove_me" field was removed. */
1628 &logon_divs, /* w */
1629 &hours_len, /* d */
1630 &hourslen, &hours, /* B */
1631 &bad_password_count, /* w */
1632 &logon_count, /* w */
1633 &unknown_6); /* d */
1634
1635 if (len == (uint32_t) -1) {
1636 ret = False;
1637 goto done;
1638 }
1639
1640 pdb_set_logon_time(sampass, convert_uint32_t_to_time_t(logon_time), PDB_SET);
1641 pdb_set_logoff_time(sampass, convert_uint32_t_to_time_t(logoff_time), PDB_SET);
1642 pdb_set_kickoff_time(sampass, convert_uint32_t_to_time_t(kickoff_time), PDB_SET);
1643 pdb_set_bad_password_time(sampass, convert_uint32_t_to_time_t(bad_password_time), PDB_SET);
1644 pdb_set_pass_can_change_time(sampass, convert_uint32_t_to_time_t(pass_can_change_time), PDB_SET);
1645 pdb_set_pass_last_set_time(sampass, convert_uint32_t_to_time_t(pass_last_set_time), PDB_SET);
1646
1647 pdb_set_username(sampass, username, PDB_SET);
1648 pdb_set_domain(sampass, domain, PDB_SET);
1649 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1650 pdb_set_fullname(sampass, fullname, PDB_SET);
1651
1652 if (homedir) {
1653 fstrcpy( tmp_string, homedir );
1654 if (expand_explicit) {
1655 standard_sub_basic( username, domain, tmp_string,
1656 sizeof(tmp_string) );
1657 }
1658 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1659 }
1660 else {
1661 pdb_set_homedir(sampass,
1662 talloc_sub_basic(sampass, username, domain,
1663 lp_logon_home()),
1664 PDB_DEFAULT);
1665 }
1666
1667 if (dir_drive)
1668 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1669 else
1670 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1671
1672 if (logon_script) {
1673 fstrcpy( tmp_string, logon_script );
1674 if (expand_explicit) {
1675 standard_sub_basic( username, domain, tmp_string,
1676 sizeof(tmp_string) );
1677 }
1678 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1679 }
1680 else {
1681 pdb_set_logon_script(sampass,
1682 talloc_sub_basic(sampass, username, domain,
1683 lp_logon_script()),
1684 PDB_DEFAULT);
1685 }
1686
1687 if (profile_path) {
1688 fstrcpy( tmp_string, profile_path );
1689 if (expand_explicit) {
1690 standard_sub_basic( username, domain, tmp_string,
1691 sizeof(tmp_string) );
1692 }
1693 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1694 }
1695 else {
1696 pdb_set_profile_path(sampass,
1697 talloc_sub_basic(sampass, username, domain, lp_logon_path()),
1698 PDB_DEFAULT);
1699 }
1700
1701 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1702 pdb_set_comment(sampass, comment, PDB_SET);
1703 pdb_set_workstations(sampass, workstations, PDB_SET);
1704 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1705
1706 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1707 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1708 ret = False;
1709 goto done;
1710 }
1711 }
1712
1713 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1714 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1715 ret = False;
1716 goto done;
1717 }
1718 }
1719
1720 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1721 if (pwHistLen) {
1722 uint8_t *pw_hist = (uint8_t *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1723 if (!pw_hist) {
1724 ret = False;
1725 goto done;
1726 }
1727 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1728 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1729 int i;
1730 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1731 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1732 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1733 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1734 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1735 PW_HISTORY_ENTRY_LEN);
1736 }
1737 }
1738 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1739 SAFE_FREE(pw_hist);
1740 ret = False;
1741 goto done;
1742 }
1743 SAFE_FREE(pw_hist);
1744 } else {
1745 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1746 }
1747
1748 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1749 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1750 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1751 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1752 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1753 /* Change from V2 is the uint32_t acct_ctrl */
1754 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1755 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1756 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1757
1758 done:
1759
1760 SAFE_FREE(username);
1761 SAFE_FREE(domain);
1762 SAFE_FREE(nt_username);
1763 SAFE_FREE(fullname);
1764 SAFE_FREE(homedir);
1765 SAFE_FREE(dir_drive);
1766 SAFE_FREE(logon_script);
1767 SAFE_FREE(profile_path);
1768 SAFE_FREE(acct_desc);
1769 SAFE_FREE(workstations);
1770 SAFE_FREE(munged_dial);
1771 SAFE_FREE(comment);
1772 SAFE_FREE(lm_pw_ptr);
1773 SAFE_FREE(nt_pw_ptr);
1774 SAFE_FREE(nt_pw_hist_ptr);
1775 SAFE_FREE(hours);
1776
1777 return ret;
1778 }
1779
1780 /*********************************************************************
1781 *********************************************************************/
1782
1783 static uint32_t init_buffer_from_samu_v3 (uint8_t **buf, struct samu *sampass, bool size_only)
1784 {
1785 size_t len, buflen;
1786
1787 /* times are stored as 32bit integer
1788 take care on system with 64bit wide time_t
1789 --SSS */
1790 uint32_t logon_time,
1791 logoff_time,
1792 kickoff_time,
1793 bad_password_time,
1794 pass_last_set_time,
1795 pass_can_change_time,
1796 pass_must_change_time;
1797
1798 uint32_t user_rid, group_rid;
1799
1800 const char *username;
1801 const char *domain;
1802 const char *nt_username;
1803 const char *dir_drive;
1804 const char *comment;
1805 const char *munged_dial;
1806 const char *fullname;
1807 const char *homedir;
1808 const char *logon_script;
1809 const char *profile_path;
1810 const char *acct_desc;
1811 const char *workstations;
1812 uint32_t username_len, domain_len, nt_username_len,
1813 dir_drive_len, comment_len, munged_dial_len,
1814 fullname_len, homedir_len, logon_script_len,
1815 profile_path_len, acct_desc_len, workstations_len;
1816
1817 const uint8_t *lm_pw;
1818 const uint8_t *nt_pw;
1819 const uint8_t *nt_pw_hist;
1820 uint32_t lm_pw_len = 16;
1821 uint32_t nt_pw_len = 16;
1822 uint32_t nt_pw_hist_len;
1823 uint32_t pwHistLen = 0;
1824
1825 *buf = NULL;
1826 buflen = 0;
1827
1828 logon_time = convert_time_t_to_uint32_t(pdb_get_logon_time(sampass));
1829 logoff_time = convert_time_t_to_uint32_t(pdb_get_logoff_time(sampass));
1830 kickoff_time = convert_time_t_to_uint32_t(pdb_get_kickoff_time(sampass));
1831 bad_password_time = convert_time_t_to_uint32_t(pdb_get_bad_password_time(sampass));
1832 pass_can_change_time = convert_time_t_to_uint32_t(pdb_get_pass_can_change_time_noncalc(sampass));
1833 pass_must_change_time = convert_time_t_to_uint32_t(pdb_get_pass_must_change_time(sampass));
1834 pass_last_set_time = convert_time_t_to_uint32_t(pdb_get_pass_last_set_time(sampass));
1835
1836 user_rid = pdb_get_user_rid(sampass);
1837 group_rid = pdb_get_group_rid(sampass);
1838
1839 username = pdb_get_username(sampass);
1840 if (username) {
1841 username_len = strlen(username) +1;
1842 } else {
1843 username_len = 0;
1844 }
1845
1846 domain = pdb_get_domain(sampass);
1847 if (domain) {
1848 domain_len = strlen(domain) +1;
1849 } else {
1850 domain_len = 0;
1851 }
1852
1853 nt_username = pdb_get_nt_username(sampass);
1854 if (nt_username) {
1855 nt_username_len = strlen(nt_username) +1;
1856 } else {
1857 nt_username_len = 0;
1858 }
1859
1860 fullname = pdb_get_fullname(sampass);
1861 if (fullname) {
1862 fullname_len = strlen(fullname) +1;
1863 } else {
1864 fullname_len = 0;
1865 }
1866
1867 /*
1868 * Only updates fields which have been set (not defaults from smb.conf)
1869 */
1870
1871 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1872 dir_drive = pdb_get_dir_drive(sampass);
1873 } else {
1874 dir_drive = NULL;
1875 }
1876 if (dir_drive) {
1877 dir_drive_len = strlen(dir_drive) +1;
1878 } else {
1879 dir_drive_len = 0;
1880 }
1881
1882 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1883 homedir = pdb_get_homedir(sampass);
1884 } else {
1885 homedir = NULL;
1886 }
1887 if (homedir) {
1888 homedir_len = strlen(homedir) +1;
1889 } else {
1890 homedir_len = 0;
1891 }
1892
1893 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1894 logon_script = pdb_get_logon_script(sampass);
1895 } else {
1896 logon_script = NULL;
1897 }
1898 if (logon_script) {
1899 logon_script_len = strlen(logon_script) +1;
1900 } else {
1901 logon_script_len = 0;
1902 }
1903
1904 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1905 profile_path = pdb_get_profile_path(sampass);
1906 } else {
1907 profile_path = NULL;
1908 }
1909 if (profile_path) {
1910 profile_path_len = strlen(profile_path) +1;
1911 } else {
1912 profile_path_len = 0;
1913 }
1914
1915 lm_pw = pdb_get_lanman_passwd(sampass);
1916 if (!lm_pw) {
1917 lm_pw_len = 0;
1918 }
1919
1920 nt_pw = pdb_get_nt_passwd(sampass);
1921 if (!nt_pw) {
1922 nt_pw_len = 0;
1923 }
1924
1925 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1926 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
1927 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1928 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1929 } else {
1930 nt_pw_hist_len = 0;
1931 }
1932
1933 acct_desc = pdb_get_acct_desc(sampass);
1934 if (acct_desc) {
1935 acct_desc_len = strlen(acct_desc) +1;
1936 } else {
1937 acct_desc_len = 0;
1938 }
1939
1940 workstations = pdb_get_workstations(sampass);
1941 if (workstations) {
1942 workstations_len = strlen(workstations) +1;
1943 } else {
1944 workstations_len = 0;
1945 }
1946
1947 comment = pdb_get_comment(sampass);
1948 if (comment) {
1949 comment_len = strlen(comment) +1;
1950 } else {
1951 comment_len = 0;
1952 }
1953
1954 munged_dial = pdb_get_munged_dial(sampass);
1955 if (munged_dial) {
1956 munged_dial_len = strlen(munged_dial) +1;
1957 } else {
1958 munged_dial_len = 0;
1959 }
1960
1961 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1962
1963 /* one time to get the size needed */
1964 len = tdb_pack(NULL, 0, SAMU_BUFFER_FORMAT_V3,
1965 logon_time, /* d */
1966 logoff_time, /* d */
1967 kickoff_time, /* d */
1968 bad_password_time, /* d */
1969 pass_last_set_time, /* d */
1970 pass_can_change_time, /* d */
1971 pass_must_change_time, /* d */
1972 username_len, username, /* B */
1973 domain_len, domain, /* B */
1974 nt_username_len, nt_username, /* B */
1975 fullname_len, fullname, /* B */
1976 homedir_len, homedir, /* B */
1977 dir_drive_len, dir_drive, /* B */
1978 logon_script_len, logon_script, /* B */
1979 profile_path_len, profile_path, /* B */
1980 acct_desc_len, acct_desc, /* B */
1981 workstations_len, workstations, /* B */
1982 comment_len, comment, /* B */
1983 munged_dial_len, munged_dial, /* B */
1984 user_rid, /* d */
1985 group_rid, /* d */
1986 lm_pw_len, lm_pw, /* B */
1987 nt_pw_len, nt_pw, /* B */
1988 nt_pw_hist_len, nt_pw_hist, /* B */
1989 pdb_get_acct_ctrl(sampass), /* d */
1990 pdb_get_logon_divs(sampass), /* w */
1991 pdb_get_hours_len(sampass), /* d */
1992 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1993 pdb_get_bad_password_count(sampass), /* w */
1994 pdb_get_logon_count(sampass), /* w */
1995 pdb_get_unknown_6(sampass)); /* d */
1996
1997 if (size_only) {
1998 return buflen;
1999 }
2000
2001 /* malloc the space needed */
2002 if ( (*buf=(uint8_t*)SMB_MALLOC(len)) == NULL) {
2003 DEBUG(0,("init_buffer_from_samu_v3: Unable to malloc() memory for buffer!\n"));
2004 return (-1);
2005 }
2006
2007 /* now for the real call to tdb_pack() */
2008 buflen = tdb_pack(*buf, len, SAMU_BUFFER_FORMAT_V3,
2009 logon_time, /* d */
2010 logoff_time, /* d */
2011 kickoff_time, /* d */
2012 bad_password_time, /* d */
2013 pass_last_set_time, /* d */
2014 pass_can_change_time, /* d */
2015 pass_must_change_time, /* d */
2016 username_len, username, /* B */
2017 domain_len, domain, /* B */
2018 nt_username_len, nt_username, /* B */
2019 fullname_len, fullname, /* B */
2020 homedir_len, homedir, /* B */
2021 dir_drive_len, dir_drive, /* B */
2022 logon_script_len, logon_script, /* B */
2023 profile_path_len, profile_path, /* B */
2024 acct_desc_len, acct_desc, /* B */
2025 workstations_len, workstations, /* B */
2026 comment_len, comment, /* B */
2027 munged_dial_len, munged_dial, /* B */
2028 user_rid, /* d */
2029 group_rid, /* d */
2030 lm_pw_len, lm_pw, /* B */
2031 nt_pw_len, nt_pw, /* B */
2032 nt_pw_hist_len, nt_pw_hist, /* B */
2033 pdb_get_acct_ctrl(sampass), /* d */
2034 pdb_get_logon_divs(sampass), /* w */
2035 pdb_get_hours_len(sampass), /* d */
2036 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2037 pdb_get_bad_password_count(sampass), /* w */
2038 pdb_get_logon_count(sampass), /* w */
2039 pdb_get_unknown_6(sampass)); /* d */
2040
2041 /* check to make sure we got it correct */
2042 if (buflen != len) {
2043 DEBUG(0, ("init_buffer_from_samu_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2044 (unsigned long)buflen, (unsigned long)len));
2045 /* error */
2046 SAFE_FREE (*buf);
2047 return (-1);
2048 }
2049
2050 return (buflen);
2051 }
2052
2053 static bool init_samu_from_buffer_v4(struct samu *sampass, uint8_t *buf, uint32_t buflen)
2054 {
2055 /* nothing changed between V3 and V4 */
2056 return init_samu_from_buffer_v3(sampass, buf, buflen);
2057 }
2058
2059 static uint32_t init_buffer_from_samu_v4(uint8_t **buf, struct samu *sampass, bool size_only)
2060 {
2061 /* nothing changed between V3 and V4 */
2062 return init_buffer_from_samu_v3(buf, sampass, size_only);
2063 }
2064
2065 /**********************************************************************
2066 Intialize a struct samu struct from a BYTE buffer of size len
2067 *********************************************************************/
2068
2069 bool init_samu_from_buffer(struct samu *sampass, uint32_t level,
2070 uint8_t *buf, uint32_t buflen)
2071 {
2072 switch (level) {
2073 case SAMU_BUFFER_V0:
2074 return init_samu_from_buffer_v0(sampass, buf, buflen);
2075 case SAMU_BUFFER_V1:
2076 return init_samu_from_buffer_v1(sampass, buf, buflen);
2077 case SAMU_BUFFER_V2:
2078 return init_samu_from_buffer_v2(sampass, buf, buflen);
2079 case SAMU_BUFFER_V3:
2080 return init_samu_from_buffer_v3(sampass, buf, buflen);
2081 case SAMU_BUFFER_V4:
2082 return init_samu_from_buffer_v4(sampass, buf, buflen);
2083 }
2084
2085 return false;
2086 }
2087
2088 /**********************************************************************
2089 Intialize a BYTE buffer from a struct samu struct
2090 *********************************************************************/
2091
2092 uint32_t init_buffer_from_samu (uint8_t **buf, struct samu *sampass, bool size_only)
2093 {
2094 return init_buffer_from_samu_v4(buf, sampass, size_only);
2095 }
2096
2097 /*********************************************************************
2098 *********************************************************************/
2099
2100 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
2101 {
2102 uint8_t *buf = NULL;
2103 int len;
2104
2105 len = init_buffer_from_samu(&buf, src, False);
2106 if (len == -1 || !buf) {
2107 SAFE_FREE(buf);
2108 return False;
2109 }
2110
2111 if (!init_samu_from_buffer( dst, SAMU_BUFFER_LATEST, buf, len )) {
2112 free(buf);
2113 return False;
2114 }
2115
2116 dst->methods = src->methods;
2117
2118 if ( src->unix_pw ) {
2119 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
2120 if (!dst->unix_pw) {
2121 free(buf);
2122 return False;
2123 }
2124 }
2125
2126 if (src->group_sid) {
2127 pdb_set_group_sid(dst, src->group_sid, PDB_SET);
2128 }
2129
2130 free(buf);
2131 return True;
2132 }
2133
2134 /*********************************************************************
2135 Update the bad password count checking the PDB_POLICY_RESET_COUNT_TIME
2136 *********************************************************************/
2137
2138 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
2139 {
2140 time_t LastBadPassword;
2141 uint16_t BadPasswordCount;
2142 uint32_t resettime;
2143 bool res;
2144
2145 BadPasswordCount = pdb_get_bad_password_count(sampass);
2146 if (!BadPasswordCount) {
2147 DEBUG(9, ("No bad password attempts.\n"));
2148 return True;
2149 }
2150
2151 become_root();
2152 res = pdb_get_account_policy(PDB_POLICY_RESET_COUNT_TIME, &resettime);
2153 unbecome_root();
2154
2155 if (!res) {
2156 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2157 return False;
2158 }
2159
2160 /* First, check if there is a reset time to compare */
2161 if ((resettime == (uint32_t) -1) || (resettime == 0)) {
2162 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2163 return True;
2164 }
2165
2166 LastBadPassword = pdb_get_bad_password_time(sampass);
2167 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2168 (uint32_t) LastBadPassword, resettime, (uint32_t)time(NULL)));
2169 if (time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(resettime)*60)){
2170 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2171 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2172 if (updated) {
2173 *updated = True;
2174 }
2175 }
2176
2177 return True;
2178 }
2179
2180 /*********************************************************************
2181 Update the ACB_AUTOLOCK flag checking the PDB_POLICY_LOCK_ACCOUNT_DURATION
2182 *********************************************************************/
2183
2184 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
2185 {
2186 uint32_t duration;
2187 time_t LastBadPassword;
2188 bool res;
2189
2190 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2191 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2192 pdb_get_username(sampass)));
2193 return True;
2194 }
2195
2196 become_root();
2197 res = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION, &duration);
2198 unbecome_root();
2199
2200 if (!res) {
2201 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2202 return False;
2203 }
2204
2205 /* First, check if there is a duration to compare */
2206 if ((duration == (uint32_t) -1) || (duration == 0)) {
2207 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2208 return True;
2209 }
2210
2211 LastBadPassword = pdb_get_bad_password_time(sampass);
2212 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2213 pdb_get_username(sampass), (uint32_t)LastBadPassword, duration*60, (uint32_t)time(NULL)));
2214
2215 if (LastBadPassword == (time_t)0) {
2216 DEBUG(1,("pdb_update_autolock_flag: Account %s "
2217 "administratively locked out with no bad password "
2218 "time. Leaving locked out.\n",
2219 pdb_get_username(sampass) ));
2220 return True;
2221 }
2222
2223 if ((time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(duration) * 60))) {
2224 pdb_set_acct_ctrl(sampass,
2225 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2226 PDB_CHANGED);
2227 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2228 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2229 if (updated) {
2230 *updated = True;
2231 }
2232 }
2233
2234 return True;
2235 }
2236
2237 /*********************************************************************
2238 Increment the bad_password_count
2239 *********************************************************************/
2240
2241 bool pdb_increment_bad_password_count(struct samu *sampass)
2242 {
2243 uint32_t account_policy_lockout;
2244 bool autolock_updated = False, badpw_updated = False;
2245 bool ret;
2246
2247 /* Retrieve the account lockout policy */
2248 become_root();
2249 ret = pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2250 unbecome_root();
2251 if ( !ret ) {
2252 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2253 return False;
2254 }
2255
2256 /* If there is no policy, we don't need to continue checking */
2257 if (!account_policy_lockout) {
2258 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2259 return True;
2260 }
2261
2262 /* Check if the autolock needs to be cleared */
2263 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2264 return False;
2265
2266 /* Check if the badpw count needs to be reset */
2267 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2268 return False;
2269
2270 /*
2271 Ok, now we can assume that any resetting that needs to be
2272 done has been done, and just get on with incrementing
2273 and autolocking if necessary
2274 */
2275
2276 pdb_set_bad_password_count(sampass,
2277 pdb_get_bad_password_count(sampass)+1,
2278 PDB_CHANGED);
2279 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2280
2281
2282 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2283 return True;
2284
2285 if (!pdb_set_acct_ctrl(sampass,
2286 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2287 PDB_CHANGED)) {
2288 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2289 return False;
2290 }
2291
2292 return True;
2293 }
2294
2295 bool is_dc_trusted_domain_situation(const char *domain_name)
2296 {
2297 return IS_DC && !strequal(domain_name, lp_workgroup());
2298 }
2299
2300 /*******************************************************************
2301 Wrapper around retrieving the clear text trust account password.
2302 appropriate account name is stored in account_name.
2303 Caller must free password, but not account_name.
2304 *******************************************************************/
2305
2306 bool get_trust_pw_clear(const char *domain, char **ret_pwd,
2307 const char **account_name,
2308 enum netr_SchannelType *channel)
2309 {
2310 char *pwd;
2311 time_t last_set_time;
2312
2313 /* if we are a DC and this is not our domain, then lookup an account
2314 * for the domain trust */
2315
2316 if (is_dc_trusted_domain_situation(domain)) {
2317 if (!lp_allow_trusted_domains()) {
2318 return false;
2319 }
2320
2321 if (!pdb_get_trusteddom_pw(domain, ret_pwd, NULL,
2322 &last_set_time))
2323 {
2324 DEBUG(0, ("get_trust_pw: could not fetch trust "
2325 "account password for trusted domain %s\n",
2326 domain));
2327 return false;
2328 }
2329
2330 if (channel != NULL) {
2331 *channel = SEC_CHAN_DOMAIN;
2332 }
2333
2334 if (account_name != NULL) {
2335 *account_name = lp_workgroup();
2336 }
2337
2338 return true;
2339 }
2340
2341 /*
2342 * Since we can only be member of one single domain, we are now
2343 * in a member situation:
2344 *
2345 * - Either we are a DC (selfjoined) and the domain is our
2346 * own domain.
2347 * - Or we are on a member and the domain is our own or some
2348 * other (potentially trusted) domain.
2349 *
2350 * In both cases, we can only get the machine account password
2351 * for our own domain to connect to our own dc. (For a member,
2352 * request to trusted domains are performed through our dc.)
2353 *
2354 * So we simply use our own domain name to retrieve the
2355 * machine account passowrd and ignore the request domain here.
2356 */
2357
2358 pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
2359
2360 if (pwd != NULL) {
2361 *ret_pwd = pwd;
2362 if (account_name != NULL) {
2363 *account_name = lp_netbios_name();
2364 }
2365
2366 return true;
2367 }
2368
2369 DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
2370 "account password for domain %s\n", domain));
2371 return false;
2372 }
2373
2374 /*******************************************************************
2375 Wrapper around retrieving the trust account password.
2376 appropriate account name is stored in account_name.
2377 *******************************************************************/
2378
2379 bool get_trust_pw_hash(const char *domain, uint8_t ret_pwd[16],
2380 const char **account_name,
2381 enum netr_SchannelType *channel)
2382 {
2383 char *pwd = NULL;
2384 time_t last_set_time;
2385
2386 if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
2387 E_md4hash(pwd, ret_pwd);
2388 SAFE_FREE(pwd);
2389 return true;
2390 } else if (is_dc_trusted_domain_situation(domain)) {
2391 return false;
2392 }
2393
2394 /* as a fallback, try to get the hashed pwd directly from the tdb... */
2395
2396 if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
2397 &last_set_time,
2398 channel))
2399 {
2400 if (account_name != NULL) {
2401 *account_name = lp_netbios_name();
2402 }
2403
2404 return true;
2405 }
2406
2407 DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
2408 "password for domain %s\n", domain));
2409 return False;
2410 }
reg import