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s3: Use hex_encode_buf
[Samba.git] / source3 / passdb / passdb.c
blobf09273705e6875fec652813b2d47f710f050345e
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 hex_encode_buf(p, pwd, 16);
385 } else {
386 if (acct_ctrl & ACB_PWNOTREQ)
387 strlcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
388 else
389 strlcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
390 }
391 }
392
393 /*************************************************************
394 Routine to get the 32 hex characters and turn them
395 into a 16 byte array.
396 **************************************************************/
397
398 bool pdb_gethexpwd(const char *p, unsigned char *pwd)
399 {
400 int i;
401 unsigned char lonybble, hinybble;
402 const char *hexchars = "0123456789ABCDEF";
403 char *p1, *p2;
404
405 if (!p)
406 return false;
407
408 for (i = 0; i < 32; i += 2) {
409 hinybble = toupper_m(p[i]);
410 lonybble = toupper_m(p[i + 1]);
411
412 p1 = strchr(hexchars, hinybble);
413 p2 = strchr(hexchars, lonybble);
414
415 if (!p1 || !p2)
416 return false;
417
418 hinybble = PTR_DIFF(p1, hexchars);
419 lonybble = PTR_DIFF(p2, hexchars);
420
421 pwd[i / 2] = (hinybble << 4) | lonybble;
422 }
423 return true;
424 }
425
426 /*************************************************************
427 Routine to set 42 hex hours characters from a 21 byte array.
428 **************************************************************/
429
430 void pdb_sethexhours(char *p, const unsigned char *hours)
431 {
432 if (hours != NULL) {
433 int i;
434 for (i = 0; i < 21; i++) {
435 slprintf(&p[i*2], 3, "%02X", hours[i]);
436 }
437 } else {
438 strlcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 44);
439 }
440 }
441
442 /*************************************************************
443 Routine to get the 42 hex characters and turn them
444 into a 21 byte array.
445 **************************************************************/
446
447 bool pdb_gethexhours(const char *p, unsigned char *hours)
448 {
449 int i;
450 unsigned char lonybble, hinybble;
451 const char *hexchars = "0123456789ABCDEF";
452 char *p1, *p2;
453
454 if (!p) {
455 return (False);
456 }
457
458 for (i = 0; i < 42; i += 2) {
459 hinybble = toupper_m(p[i]);
460 lonybble = toupper_m(p[i + 1]);
461
462 p1 = strchr(hexchars, hinybble);
463 p2 = strchr(hexchars, lonybble);
464
465 if (!p1 || !p2) {
466 return (False);
467 }
468
469 hinybble = PTR_DIFF(p1, hexchars);
470 lonybble = PTR_DIFF(p2, hexchars);
471
472 hours[i / 2] = (hinybble << 4) | lonybble;
473 }
474 return (True);
475 }
476
477 /********************************************************************
478 ********************************************************************/
479
480 int algorithmic_rid_base(void)
481 {
482 int rid_offset;
483
484 rid_offset = lp_algorithmic_rid_base();
485
486 if (rid_offset < BASE_RID) {
487 /* Try to prevent admin foot-shooting, we can't put algorithmic
488 rids below 1000, that's the 'well known RIDs' on NT */
489 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
490 rid_offset = BASE_RID;
491 }
492 if (rid_offset & 1) {
493 DEBUG(0, ("algorithmic rid base must be even\n"));
494 rid_offset += 1;
495 }
496 return rid_offset;
497 }
498
499 /*******************************************************************
500 Converts NT user RID to a UNIX uid.
501 ********************************************************************/
502
503 uid_t algorithmic_pdb_user_rid_to_uid(uint32_t user_rid)
504 {
505 int rid_offset = algorithmic_rid_base();
506 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
507 }
508
509 uid_t max_algorithmic_uid(void)
510 {
511 return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
512 }
513
514 /*******************************************************************
515 converts UNIX uid to an NT User RID.
516 ********************************************************************/
517
518 uint32_t algorithmic_pdb_uid_to_user_rid(uid_t uid)
519 {
520 int rid_offset = algorithmic_rid_base();
521 return (((((uint32_t)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
522 }
523
524 /*******************************************************************
525 Converts NT group RID to a UNIX gid.
526 ********************************************************************/
527
528 gid_t pdb_group_rid_to_gid(uint32_t group_rid)
529 {
530 int rid_offset = algorithmic_rid_base();
531 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
532 }
533
534 gid_t max_algorithmic_gid(void)
535 {
536 return pdb_group_rid_to_gid(0xffffffff);
537 }
538
539 /*******************************************************************
540 converts NT Group RID to a UNIX uid.
541
542 warning: you must not call that function only
543 you must do a call to the group mapping first.
544 there is not anymore a direct link between the gid and the rid.
545 ********************************************************************/
546
547 uint32_t algorithmic_pdb_gid_to_group_rid(gid_t gid)
548 {
549 int rid_offset = algorithmic_rid_base();
550 return (((((uint32_t)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
551 }
552
553 /*******************************************************************
554 Decides if a RID is a well known RID.
555 ********************************************************************/
556
557 static bool rid_is_well_known(uint32_t rid)
558 {
559 /* Not using rid_offset here, because this is the actual
560 NT fixed value (1000) */
561
562 return (rid < BASE_RID);
563 }
564
565 /*******************************************************************
566 Decides if a RID is a user or group RID.
567 ********************************************************************/
568
569 bool algorithmic_pdb_rid_is_user(uint32_t rid)
570 {
571 if ( rid_is_well_known(rid) ) {
572 /*
573 * The only well known user RIDs are DOMAIN_RID_ADMINISTRATOR
574 * and DOMAIN_RID_GUEST.
575 */
576 if(rid == DOMAIN_RID_ADMINISTRATOR || rid == DOMAIN_RID_GUEST)
577 return True;
578 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
579 return True;
580 }
581 return False;
582 }
583
584 /*******************************************************************
585 Convert a name into a SID. Used in the lookup name rpc.
586 ********************************************************************/
587
588 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
589 enum lsa_SidType *type)
590 {
591 GROUP_MAP *map;
592 bool ret;
593
594 /* Windows treats "MACHINE\None" as a special name for
595 rid 513 on non-DCs. You cannot create a user or group
596 name "None" on Windows. You will get an error that
597 the group already exists. */
598
599 if ( strequal( name, "None" ) ) {
600 *rid = DOMAIN_RID_USERS;
601 *type = SID_NAME_DOM_GRP;
602
603 return True;
604 }
605
606 /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
607 * correctly in the case where foo also exists as a user. If the flag
608 * is set, don't look for users at all. */
609
610 if ((flags & LOOKUP_NAME_GROUP) == 0) {
611 struct samu *sam_account = NULL;
612 struct dom_sid user_sid;
613
614 if ( !(sam_account = samu_new( NULL )) ) {
615 return False;
616 }
617
618 become_root();
619 ret = pdb_getsampwnam(sam_account, name);
620 unbecome_root();
621
622 if (ret) {
623 sid_copy(&user_sid, pdb_get_user_sid(sam_account));
624 }
625
626 TALLOC_FREE(sam_account);
627
628 if (ret) {
629 if (!sid_check_is_in_our_domain(&user_sid)) {
630 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
631 name, sid_string_dbg(&user_sid)));
632 return False;
633 }
634
635 sid_peek_rid(&user_sid, rid);
636 *type = SID_NAME_USER;
637 return True;
638 }
639 }
640
641 /*
642 * Maybe it is a group ?
643 */
644
645 map = talloc_zero(NULL, GROUP_MAP);
646 if (!map) {
647 return false;
648 }
649
650 become_root();
651 ret = pdb_getgrnam(map, name);
652 unbecome_root();
653
654 if (!ret) {
655 TALLOC_FREE(map);
656 return False;
657 }
658
659 /* BUILTIN groups are looked up elsewhere */
660 if (!sid_check_is_in_our_domain(&map->sid)) {
661 DEBUG(10, ("Found group %s (%s) not in our domain -- "
662 "ignoring.", name, sid_string_dbg(&map->sid)));
663 TALLOC_FREE(map);
664 return False;
665 }
666
667 /* yes it's a mapped group */
668 sid_peek_rid(&map->sid, rid);
669 *type = map->sid_name_use;
670 TALLOC_FREE(map);
671 return True;
672 }
673
674 /*************************************************************
675 Change a password entry in the local passdb backend.
676
677 Assumptions:
678 - always called as root
679 - ignores the account type except when adding a new account
680 - will create/delete the unix account if the relative
681 add/delete user script is configured
682
683 *************************************************************/
684
685 NTSTATUS local_password_change(const char *user_name,
686 int local_flags,
687 const char *new_passwd,
688 char **pp_err_str,
689 char **pp_msg_str)
690 {
691 TALLOC_CTX *tosctx;
692 struct samu *sam_pass;
693 uint32_t acb;
694 uint32_t rid;
695 NTSTATUS result;
696 bool user_exists;
697 int ret = -1;
698
699 *pp_err_str = NULL;
700 *pp_msg_str = NULL;
701
702 tosctx = talloc_tos();
703
704 sam_pass = samu_new(tosctx);
705 if (!sam_pass) {
706 result = NT_STATUS_NO_MEMORY;
707 goto done;
708 }
709
710 /* Get the smb passwd entry for this user */
711 user_exists = pdb_getsampwnam(sam_pass, user_name);
712
713 /* Check delete first, we don't need to do anything else if we
714 * are going to delete the acocunt */
715 if (user_exists && (local_flags & LOCAL_DELETE_USER)) {
716
717 result = pdb_delete_user(tosctx, sam_pass);
718 if (!NT_STATUS_IS_OK(result)) {
719 ret = asprintf(pp_err_str,
720 "Failed to delete entry for user %s.\n",
721 user_name);
722 if (ret < 0) {
723 *pp_err_str = NULL;
724 }
725 result = NT_STATUS_UNSUCCESSFUL;
726 } else {
727 ret = asprintf(pp_msg_str,
728 "Deleted user %s.\n",
729 user_name);
730 if (ret < 0) {
731 *pp_msg_str = NULL;
732 }
733 }
734 goto done;
735 }
736
737 if (user_exists && (local_flags & LOCAL_ADD_USER)) {
738 /* the entry already existed */
739 local_flags &= ~LOCAL_ADD_USER;
740 }
741
742 if (!user_exists && !(local_flags & LOCAL_ADD_USER)) {
743 ret = asprintf(pp_err_str,
744 "Failed to find entry for user %s.\n",
745 user_name);
746 if (ret < 0) {
747 *pp_err_str = NULL;
748 }
749 result = NT_STATUS_NO_SUCH_USER;
750 goto done;
751 }
752
753 /* First thing add the new user if we are required to do so */
754 if (local_flags & LOCAL_ADD_USER) {
755
756 if (local_flags & LOCAL_TRUST_ACCOUNT) {
757 acb = ACB_WSTRUST;
758 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
759 acb = ACB_DOMTRUST;
760 } else {
761 acb = ACB_NORMAL;
762 }
763
764 result = pdb_create_user(tosctx, user_name, acb, &rid);
765 if (!NT_STATUS_IS_OK(result)) {
766 ret = asprintf(pp_err_str,
767 "Failed to add entry for user %s.\n",
768 user_name);
769 if (ret < 0) {
770 *pp_err_str = NULL;
771 }
772 result = NT_STATUS_UNSUCCESSFUL;
773 goto done;
774 }
775
776 sam_pass = samu_new(tosctx);
777 if (!sam_pass) {
778 result = NT_STATUS_NO_MEMORY;
779 goto done;
780 }
781
782 /* Now get back the smb passwd entry for this new user */
783 user_exists = pdb_getsampwnam(sam_pass, user_name);
784 if (!user_exists) {
785 ret = asprintf(pp_err_str,
786 "Failed to add entry for user %s.\n",
787 user_name);
788 if (ret < 0) {
789 *pp_err_str = NULL;
790 }
791 result = NT_STATUS_UNSUCCESSFUL;
792 goto done;
793 }
794 }
795
796 acb = pdb_get_acct_ctrl(sam_pass);
797
798 /*
799 * We are root - just write the new password
800 * and the valid last change time.
801 */
802 if ((local_flags & LOCAL_SET_NO_PASSWORD) && !(acb & ACB_PWNOTREQ)) {
803 acb |= ACB_PWNOTREQ;
804 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
805 ret = asprintf(pp_err_str,
806 "Failed to set 'no password required' "
807 "flag for user %s.\n", user_name);
808 if (ret < 0) {
809 *pp_err_str = NULL;
810 }
811 result = NT_STATUS_UNSUCCESSFUL;
812 goto done;
813 }
814 }
815
816 if (local_flags & LOCAL_SET_PASSWORD) {
817 /*
818 * If we're dealing with setting a completely empty user account
819 * ie. One with a password of 'XXXX', but not set disabled (like
820 * an account created from scratch) then if the old password was
821 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
822 * We remove that as we're giving this user their first password
823 * and the decision hasn't really been made to disable them (ie.
824 * don't create them disabled). JRA.
825 */
826 if ((pdb_get_lanman_passwd(sam_pass) == NULL) &&
827 (acb & ACB_DISABLED)) {
828 acb &= (~ACB_DISABLED);
829 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
830 ret = asprintf(pp_err_str,
831 "Failed to unset 'disabled' "
832 "flag for user %s.\n",
833 user_name);
834 if (ret < 0) {
835 *pp_err_str = NULL;
836 }
837 result = NT_STATUS_UNSUCCESSFUL;
838 goto done;
839 }
840 }
841
842 acb &= (~ACB_PWNOTREQ);
843 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
844 ret = asprintf(pp_err_str,
845 "Failed to unset 'no password required'"
846 " flag for user %s.\n", user_name);
847 if (ret < 0) {
848 *pp_err_str = NULL;
849 }
850 result = NT_STATUS_UNSUCCESSFUL;
851 goto done;
852 }
853
854 if (!pdb_set_plaintext_passwd(sam_pass, new_passwd)) {
855 ret = asprintf(pp_err_str,
856 "Failed to set password for "
857 "user %s.\n", user_name);
858 if (ret < 0) {
859 *pp_err_str = NULL;
860 }
861 result = NT_STATUS_UNSUCCESSFUL;
862 goto done;
863 }
864 }
865
866 if ((local_flags & LOCAL_DISABLE_USER) && !(acb & ACB_DISABLED)) {
867 acb |= ACB_DISABLED;
868 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
869 ret = asprintf(pp_err_str,
870 "Failed to set 'disabled' flag for "
871 "user %s.\n", user_name);
872 if (ret < 0) {
873 *pp_err_str = NULL;
874 }
875 result = NT_STATUS_UNSUCCESSFUL;
876 goto done;
877 }
878 }
879
880 if ((local_flags & LOCAL_ENABLE_USER) && (acb & ACB_DISABLED)) {
881 acb &= (~ACB_DISABLED);
882 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
883 ret = asprintf(pp_err_str,
884 "Failed to unset 'disabled' flag for "
885 "user %s.\n", user_name);
886 if (ret < 0) {
887 *pp_err_str = NULL;
888 }
889 result = NT_STATUS_UNSUCCESSFUL;
890 goto done;
891 }
892 }
893
894 /* now commit changes if any */
895 result = pdb_update_sam_account(sam_pass);
896 if (!NT_STATUS_IS_OK(result)) {
897 ret = asprintf(pp_err_str,
898 "Failed to modify entry for user %s.\n",
899 user_name);
900 if (ret < 0) {
901 *pp_err_str = NULL;
902 }
903 goto done;
904 }
905
906 if (local_flags & LOCAL_ADD_USER) {
907 ret = asprintf(pp_msg_str, "Added user %s.\n", user_name);
908 } else if (local_flags & LOCAL_DISABLE_USER) {
909 ret = asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
910 } else if (local_flags & LOCAL_ENABLE_USER) {
911 ret = asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
912 } else if (local_flags & LOCAL_SET_NO_PASSWORD) {
913 ret = asprintf(pp_msg_str,
914 "User %s password set to none.\n", user_name);
915 }
916
917 if (ret < 0) {
918 *pp_msg_str = NULL;
919 }
920
921 result = NT_STATUS_OK;
922
923 done:
924 TALLOC_FREE(sam_pass);
925 return result;
926 }
927
928 /**********************************************************************
929 Marshall/unmarshall struct samu structs.
930 *********************************************************************/
931
932 #define SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
933 #define SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
934 #define SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
935 #define SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
936 /* nothing changed between V3 and V4 */
937
938 /*********************************************************************
939 *********************************************************************/
940
941 static bool init_samu_from_buffer_v0(struct samu *sampass, uint8_t *buf, uint32_t buflen)
942 {
943
944 /* times are stored as 32bit integer
945 take care on system with 64bit wide time_t
946 --SSS */
947 uint32_t logon_time,
948 logoff_time,
949 kickoff_time,
950 pass_last_set_time,
951 pass_can_change_time,
952 pass_must_change_time;
953 char *username = NULL;
954 char *domain = NULL;
955 char *nt_username = NULL;
956 char *dir_drive = NULL;
957 char *unknown_str = NULL;
958 char *munged_dial = NULL;
959 char *fullname = NULL;
960 char *homedir = NULL;
961 char *logon_script = NULL;
962 char *profile_path = NULL;
963 char *acct_desc = NULL;
964 char *workstations = NULL;
965 uint32_t username_len, domain_len, nt_username_len,
966 dir_drive_len, unknown_str_len, munged_dial_len,
967 fullname_len, homedir_len, logon_script_len,
968 profile_path_len, acct_desc_len, workstations_len;
969
970 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
971 uint16_t acct_ctrl, logon_divs;
972 uint16_t bad_password_count, logon_count;
973 uint8_t *hours = NULL;
974 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
975 uint32_t len = 0;
976 uint32_t lm_pw_len, nt_pw_len, hourslen;
977 bool ret = True;
978
979 if(sampass == NULL || buf == NULL) {
980 DEBUG(0, ("init_samu_from_buffer_v0: NULL parameters found!\n"));
981 return False;
982 }
983
984 /* SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
985
986 /* unpack the buffer into variables */
987 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V0,
988 &logon_time, /* d */
989 &logoff_time, /* d */
990 &kickoff_time, /* d */
991 &pass_last_set_time, /* d */
992 &pass_can_change_time, /* d */
993 &pass_must_change_time, /* d */
994 &username_len, &username, /* B */
995 &domain_len, &domain, /* B */
996 &nt_username_len, &nt_username, /* B */
997 &fullname_len, &fullname, /* B */
998 &homedir_len, &homedir, /* B */
999 &dir_drive_len, &dir_drive, /* B */
1000 &logon_script_len, &logon_script, /* B */
1001 &profile_path_len, &profile_path, /* B */
1002 &acct_desc_len, &acct_desc, /* B */
1003 &workstations_len, &workstations, /* B */
1004 &unknown_str_len, &unknown_str, /* B */
1005 &munged_dial_len, &munged_dial, /* B */
1006 &user_rid, /* d */
1007 &group_rid, /* d */
1008 &lm_pw_len, &lm_pw_ptr, /* B */
1009 &nt_pw_len, &nt_pw_ptr, /* B */
1010 &acct_ctrl, /* w */
1011 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1012 &logon_divs, /* w */
1013 &hours_len, /* d */
1014 &hourslen, &hours, /* B */
1015 &bad_password_count, /* w */
1016 &logon_count, /* w */
1017 &unknown_6); /* d */
1018
1019 if (len == (uint32_t) -1) {
1020 ret = False;
1021 goto done;
1022 }
1023
1024 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1025 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1026 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1027 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1028 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1029
1030 pdb_set_username(sampass, username, PDB_SET);
1031 pdb_set_domain(sampass, domain, PDB_SET);
1032 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1033 pdb_set_fullname(sampass, fullname, PDB_SET);
1034
1035 if (homedir) {
1036 pdb_set_homedir(sampass, homedir, PDB_SET);
1037 }
1038 else {
1039 pdb_set_homedir(sampass,
1040 talloc_sub_basic(sampass, username, domain,
1041 lp_logon_home()),
1042 PDB_DEFAULT);
1043 }
1044
1045 if (dir_drive)
1046 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1047 else {
1048 pdb_set_dir_drive(sampass,
1049 talloc_sub_basic(sampass, username, domain,
1050 lp_logon_drive()),
1051 PDB_DEFAULT);
1052 }
1053
1054 if (logon_script)
1055 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1056 else {
1057 pdb_set_logon_script(sampass,
1058 talloc_sub_basic(sampass, username, domain,
1059 lp_logon_script()),
1060 PDB_DEFAULT);
1061 }
1062
1063 if (profile_path) {
1064 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1065 } else {
1066 pdb_set_profile_path(sampass,
1067 talloc_sub_basic(sampass, username, domain,
1068 lp_logon_path()),
1069 PDB_DEFAULT);
1070 }
1071
1072 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1073 pdb_set_workstations(sampass, workstations, PDB_SET);
1074 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1075
1076 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1077 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1078 ret = False;
1079 goto done;
1080 }
1081 }
1082
1083 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1084 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1085 ret = False;
1086 goto done;
1087 }
1088 }
1089
1090 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1091 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1092 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1093 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1094 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1095 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1096 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1097 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1098 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1099 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1100
1101 done:
1102
1103 SAFE_FREE(username);
1104 SAFE_FREE(domain);
1105 SAFE_FREE(nt_username);
1106 SAFE_FREE(fullname);
1107 SAFE_FREE(homedir);
1108 SAFE_FREE(dir_drive);
1109 SAFE_FREE(logon_script);
1110 SAFE_FREE(profile_path);
1111 SAFE_FREE(acct_desc);
1112 SAFE_FREE(workstations);
1113 SAFE_FREE(munged_dial);
1114 SAFE_FREE(unknown_str);
1115 SAFE_FREE(lm_pw_ptr);
1116 SAFE_FREE(nt_pw_ptr);
1117 SAFE_FREE(hours);
1118
1119 return ret;
1120 }
1121
1122 /*********************************************************************
1123 *********************************************************************/
1124
1125 static bool init_samu_from_buffer_v1(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1126 {
1127
1128 /* times are stored as 32bit integer
1129 take care on system with 64bit wide time_t
1130 --SSS */
1131 uint32_t logon_time,
1132 logoff_time,
1133 kickoff_time,
1134 bad_password_time,
1135 pass_last_set_time,
1136 pass_can_change_time,
1137 pass_must_change_time;
1138 char *username = NULL;
1139 char *domain = NULL;
1140 char *nt_username = NULL;
1141 char *dir_drive = NULL;
1142 char *unknown_str = NULL;
1143 char *munged_dial = NULL;
1144 char *fullname = NULL;
1145 char *homedir = NULL;
1146 char *logon_script = NULL;
1147 char *profile_path = NULL;
1148 char *acct_desc = NULL;
1149 char *workstations = NULL;
1150 uint32_t username_len, domain_len, nt_username_len,
1151 dir_drive_len, unknown_str_len, munged_dial_len,
1152 fullname_len, homedir_len, logon_script_len,
1153 profile_path_len, acct_desc_len, workstations_len;
1154
1155 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
1156 uint16_t acct_ctrl, logon_divs;
1157 uint16_t bad_password_count, logon_count;
1158 uint8_t *hours = NULL;
1159 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1160 uint32_t len = 0;
1161 uint32_t lm_pw_len, nt_pw_len, hourslen;
1162 bool ret = True;
1163
1164 if(sampass == NULL || buf == NULL) {
1165 DEBUG(0, ("init_samu_from_buffer_v1: NULL parameters found!\n"));
1166 return False;
1167 }
1168
1169 /* SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1170
1171 /* unpack the buffer into variables */
1172 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V1,
1173 &logon_time, /* d */
1174 &logoff_time, /* d */
1175 &kickoff_time, /* d */
1176 /* Change from V0 is addition of bad_password_time field. */
1177 &bad_password_time, /* d */
1178 &pass_last_set_time, /* d */
1179 &pass_can_change_time, /* d */
1180 &pass_must_change_time, /* d */
1181 &username_len, &username, /* B */
1182 &domain_len, &domain, /* B */
1183 &nt_username_len, &nt_username, /* B */
1184 &fullname_len, &fullname, /* B */
1185 &homedir_len, &homedir, /* B */
1186 &dir_drive_len, &dir_drive, /* B */
1187 &logon_script_len, &logon_script, /* B */
1188 &profile_path_len, &profile_path, /* B */
1189 &acct_desc_len, &acct_desc, /* B */
1190 &workstations_len, &workstations, /* B */
1191 &unknown_str_len, &unknown_str, /* B */
1192 &munged_dial_len, &munged_dial, /* B */
1193 &user_rid, /* d */
1194 &group_rid, /* d */
1195 &lm_pw_len, &lm_pw_ptr, /* B */
1196 &nt_pw_len, &nt_pw_ptr, /* B */
1197 &acct_ctrl, /* w */
1198 &remove_me, /* d */
1199 &logon_divs, /* w */
1200 &hours_len, /* d */
1201 &hourslen, &hours, /* B */
1202 &bad_password_count, /* w */
1203 &logon_count, /* w */
1204 &unknown_6); /* d */
1205
1206 if (len == (uint32_t) -1) {
1207 ret = False;
1208 goto done;
1209 }
1210
1211 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1212 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1213 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1214
1215 /* Change from V0 is addition of bad_password_time field. */
1216 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1217 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1218 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1219
1220 pdb_set_username(sampass, username, PDB_SET);
1221 pdb_set_domain(sampass, domain, PDB_SET);
1222 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1223 pdb_set_fullname(sampass, fullname, PDB_SET);
1224
1225 if (homedir) {
1226 pdb_set_homedir(sampass, homedir, PDB_SET);
1227 }
1228 else {
1229 pdb_set_homedir(sampass,
1230 talloc_sub_basic(sampass, username, domain,
1231 lp_logon_home()),
1232 PDB_DEFAULT);
1233 }
1234
1235 if (dir_drive)
1236 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1237 else {
1238 pdb_set_dir_drive(sampass,
1239 talloc_sub_basic(sampass, username, domain,
1240 lp_logon_drive()),
1241 PDB_DEFAULT);
1242 }
1243
1244 if (logon_script)
1245 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1246 else {
1247 pdb_set_logon_script(sampass,
1248 talloc_sub_basic(sampass, username, domain,
1249 lp_logon_script()),
1250 PDB_DEFAULT);
1251 }
1252
1253 if (profile_path) {
1254 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1255 } else {
1256 pdb_set_profile_path(sampass,
1257 talloc_sub_basic(sampass, username, domain,
1258 lp_logon_path()),
1259 PDB_DEFAULT);
1260 }
1261
1262 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1263 pdb_set_workstations(sampass, workstations, PDB_SET);
1264 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1265
1266 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1267 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1268 ret = False;
1269 goto done;
1270 }
1271 }
1272
1273 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1274 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1275 ret = False;
1276 goto done;
1277 }
1278 }
1279
1280 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1281
1282 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1283 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1284 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1285 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1286 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1287 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1288 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1289 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1290 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1291
1292 done:
1293
1294 SAFE_FREE(username);
1295 SAFE_FREE(domain);
1296 SAFE_FREE(nt_username);
1297 SAFE_FREE(fullname);
1298 SAFE_FREE(homedir);
1299 SAFE_FREE(dir_drive);
1300 SAFE_FREE(logon_script);
1301 SAFE_FREE(profile_path);
1302 SAFE_FREE(acct_desc);
1303 SAFE_FREE(workstations);
1304 SAFE_FREE(munged_dial);
1305 SAFE_FREE(unknown_str);
1306 SAFE_FREE(lm_pw_ptr);
1307 SAFE_FREE(nt_pw_ptr);
1308 SAFE_FREE(hours);
1309
1310 return ret;
1311 }
1312
1313 static bool init_samu_from_buffer_v2(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1314 {
1315
1316 /* times are stored as 32bit integer
1317 take care on system with 64bit wide time_t
1318 --SSS */
1319 uint32_t logon_time,
1320 logoff_time,
1321 kickoff_time,
1322 bad_password_time,
1323 pass_last_set_time,
1324 pass_can_change_time,
1325 pass_must_change_time;
1326 char *username = NULL;
1327 char *domain = NULL;
1328 char *nt_username = NULL;
1329 char *dir_drive = NULL;
1330 char *unknown_str = NULL;
1331 char *munged_dial = NULL;
1332 char *fullname = NULL;
1333 char *homedir = NULL;
1334 char *logon_script = NULL;
1335 char *profile_path = NULL;
1336 char *acct_desc = NULL;
1337 char *workstations = NULL;
1338 uint32_t username_len, domain_len, nt_username_len,
1339 dir_drive_len, unknown_str_len, munged_dial_len,
1340 fullname_len, homedir_len, logon_script_len,
1341 profile_path_len, acct_desc_len, workstations_len;
1342
1343 uint32_t user_rid, group_rid, hours_len, unknown_6;
1344 uint16_t acct_ctrl, logon_divs;
1345 uint16_t bad_password_count, logon_count;
1346 uint8_t *hours = NULL;
1347 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1348 uint32_t len = 0;
1349 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1350 uint32_t pwHistLen = 0;
1351 bool ret = True;
1352 fstring tmp_string;
1353 bool expand_explicit = lp_passdb_expand_explicit();
1354
1355 if(sampass == NULL || buf == NULL) {
1356 DEBUG(0, ("init_samu_from_buffer_v2: NULL parameters found!\n"));
1357 return False;
1358 }
1359
1360 /* SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1361
1362 /* unpack the buffer into variables */
1363 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V2,
1364 &logon_time, /* d */
1365 &logoff_time, /* d */
1366 &kickoff_time, /* d */
1367 &bad_password_time, /* d */
1368 &pass_last_set_time, /* d */
1369 &pass_can_change_time, /* d */
1370 &pass_must_change_time, /* d */
1371 &username_len, &username, /* B */
1372 &domain_len, &domain, /* B */
1373 &nt_username_len, &nt_username, /* B */
1374 &fullname_len, &fullname, /* B */
1375 &homedir_len, &homedir, /* B */
1376 &dir_drive_len, &dir_drive, /* B */
1377 &logon_script_len, &logon_script, /* B */
1378 &profile_path_len, &profile_path, /* B */
1379 &acct_desc_len, &acct_desc, /* B */
1380 &workstations_len, &workstations, /* B */
1381 &unknown_str_len, &unknown_str, /* B */
1382 &munged_dial_len, &munged_dial, /* B */
1383 &user_rid, /* d */
1384 &group_rid, /* d */
1385 &lm_pw_len, &lm_pw_ptr, /* B */
1386 &nt_pw_len, &nt_pw_ptr, /* B */
1387 /* Change from V1 is addition of password history field. */
1388 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1389 &acct_ctrl, /* w */
1390 /* Also "remove_me" field was removed. */
1391 &logon_divs, /* w */
1392 &hours_len, /* d */
1393 &hourslen, &hours, /* B */
1394 &bad_password_count, /* w */
1395 &logon_count, /* w */
1396 &unknown_6); /* d */
1397
1398 if (len == (uint32_t) -1) {
1399 ret = False;
1400 goto done;
1401 }
1402
1403 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1404 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1405 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1406 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1407 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1408 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1409
1410 pdb_set_username(sampass, username, PDB_SET);
1411 pdb_set_domain(sampass, domain, PDB_SET);
1412 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1413 pdb_set_fullname(sampass, fullname, PDB_SET);
1414
1415 if (homedir) {
1416 fstrcpy( tmp_string, homedir );
1417 if (expand_explicit) {
1418 standard_sub_basic( username, domain, tmp_string,
1419 sizeof(tmp_string) );
1420 }
1421 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1422 }
1423 else {
1424 pdb_set_homedir(sampass,
1425 talloc_sub_basic(sampass, username, domain,
1426 lp_logon_home()),
1427 PDB_DEFAULT);
1428 }
1429
1430 if (dir_drive)
1431 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1432 else
1433 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1434
1435 if (logon_script) {
1436 fstrcpy( tmp_string, logon_script );
1437 if (expand_explicit) {
1438 standard_sub_basic( username, domain, tmp_string,
1439 sizeof(tmp_string) );
1440 }
1441 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1442 }
1443 else {
1444 pdb_set_logon_script(sampass,
1445 talloc_sub_basic(sampass, username, domain,
1446 lp_logon_script()),
1447 PDB_DEFAULT);
1448 }
1449
1450 if (profile_path) {
1451 fstrcpy( tmp_string, profile_path );
1452 if (expand_explicit) {
1453 standard_sub_basic( username, domain, tmp_string,
1454 sizeof(tmp_string) );
1455 }
1456 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1457 }
1458 else {
1459 pdb_set_profile_path(sampass,
1460 talloc_sub_basic(sampass, username, domain,
1461 lp_logon_path()),
1462 PDB_DEFAULT);
1463 }
1464
1465 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1466 pdb_set_workstations(sampass, workstations, PDB_SET);
1467 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1468
1469 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1470 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1471 ret = False;
1472 goto done;
1473 }
1474 }
1475
1476 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1477 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1478 ret = False;
1479 goto done;
1480 }
1481 }
1482
1483 /* Change from V1 is addition of password history field. */
1484 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1485 if (pwHistLen) {
1486 uint8_t *pw_hist = SMB_MALLOC_ARRAY(uint8_t, pwHistLen * PW_HISTORY_ENTRY_LEN);
1487 if (!pw_hist) {
1488 ret = False;
1489 goto done;
1490 }
1491 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1492 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1493 int i;
1494 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1495 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1496 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1497 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1498 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1499 PW_HISTORY_ENTRY_LEN);
1500 }
1501 }
1502 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1503 SAFE_FREE(pw_hist);
1504 ret = False;
1505 goto done;
1506 }
1507 SAFE_FREE(pw_hist);
1508 } else {
1509 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1510 }
1511
1512 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1513 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1514 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1515 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1516 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1517 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1518 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1519 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1520 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1521
1522 done:
1523
1524 SAFE_FREE(username);
1525 SAFE_FREE(domain);
1526 SAFE_FREE(nt_username);
1527 SAFE_FREE(fullname);
1528 SAFE_FREE(homedir);
1529 SAFE_FREE(dir_drive);
1530 SAFE_FREE(logon_script);
1531 SAFE_FREE(profile_path);
1532 SAFE_FREE(acct_desc);
1533 SAFE_FREE(workstations);
1534 SAFE_FREE(munged_dial);
1535 SAFE_FREE(unknown_str);
1536 SAFE_FREE(lm_pw_ptr);
1537 SAFE_FREE(nt_pw_ptr);
1538 SAFE_FREE(nt_pw_hist_ptr);
1539 SAFE_FREE(hours);
1540
1541 return ret;
1542 }
1543
1544 /*********************************************************************
1545 *********************************************************************/
1546
1547 static bool init_samu_from_buffer_v3(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1548 {
1549
1550 /* times are stored as 32bit integer
1551 take care on system with 64bit wide time_t
1552 --SSS */
1553 uint32_t logon_time,
1554 logoff_time,
1555 kickoff_time,
1556 bad_password_time,
1557 pass_last_set_time,
1558 pass_can_change_time,
1559 pass_must_change_time;
1560 char *username = NULL;
1561 char *domain = NULL;
1562 char *nt_username = NULL;
1563 char *dir_drive = NULL;
1564 char *comment = NULL;
1565 char *munged_dial = NULL;
1566 char *fullname = NULL;
1567 char *homedir = NULL;
1568 char *logon_script = NULL;
1569 char *profile_path = NULL;
1570 char *acct_desc = NULL;
1571 char *workstations = NULL;
1572 uint32_t username_len, domain_len, nt_username_len,
1573 dir_drive_len, comment_len, munged_dial_len,
1574 fullname_len, homedir_len, logon_script_len,
1575 profile_path_len, acct_desc_len, workstations_len;
1576
1577 uint32_t user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
1578 uint16_t logon_divs;
1579 uint16_t bad_password_count, logon_count;
1580 uint8_t *hours = NULL;
1581 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1582 uint32_t len = 0;
1583 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1584 uint32_t pwHistLen = 0;
1585 bool ret = True;
1586 fstring tmp_string;
1587 bool expand_explicit = lp_passdb_expand_explicit();
1588
1589 if(sampass == NULL || buf == NULL) {
1590 DEBUG(0, ("init_samu_from_buffer_v3: NULL parameters found!\n"));
1591 return False;
1592 }
1593
1594 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1595
1596 /* unpack the buffer into variables */
1597 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V3,
1598 &logon_time, /* d */
1599 &logoff_time, /* d */
1600 &kickoff_time, /* d */
1601 &bad_password_time, /* d */
1602 &pass_last_set_time, /* d */
1603 &pass_can_change_time, /* d */
1604 &pass_must_change_time, /* d */
1605 &username_len, &username, /* B */
1606 &domain_len, &domain, /* B */
1607 &nt_username_len, &nt_username, /* B */
1608 &fullname_len, &fullname, /* B */
1609 &homedir_len, &homedir, /* B */
1610 &dir_drive_len, &dir_drive, /* B */
1611 &logon_script_len, &logon_script, /* B */
1612 &profile_path_len, &profile_path, /* B */
1613 &acct_desc_len, &acct_desc, /* B */
1614 &workstations_len, &workstations, /* B */
1615 &comment_len, &comment, /* B */
1616 &munged_dial_len, &munged_dial, /* B */
1617 &user_rid, /* d */
1618 &group_rid, /* d */
1619 &lm_pw_len, &lm_pw_ptr, /* B */
1620 &nt_pw_len, &nt_pw_ptr, /* B */
1621 /* Change from V1 is addition of password history field. */
1622 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1623 /* Change from V2 is the uint32_t acb_mask */
1624 &acct_ctrl, /* d */
1625 /* Also "remove_me" field was removed. */
1626 &logon_divs, /* w */
1627 &hours_len, /* d */
1628 &hourslen, &hours, /* B */
1629 &bad_password_count, /* w */
1630 &logon_count, /* w */
1631 &unknown_6); /* d */
1632
1633 if (len == (uint32_t) -1) {
1634 ret = False;
1635 goto done;
1636 }
1637
1638 pdb_set_logon_time(sampass, convert_uint32_t_to_time_t(logon_time), PDB_SET);
1639 pdb_set_logoff_time(sampass, convert_uint32_t_to_time_t(logoff_time), PDB_SET);
1640 pdb_set_kickoff_time(sampass, convert_uint32_t_to_time_t(kickoff_time), PDB_SET);
1641 pdb_set_bad_password_time(sampass, convert_uint32_t_to_time_t(bad_password_time), PDB_SET);
1642 pdb_set_pass_can_change_time(sampass, convert_uint32_t_to_time_t(pass_can_change_time), PDB_SET);
1643 pdb_set_pass_last_set_time(sampass, convert_uint32_t_to_time_t(pass_last_set_time), PDB_SET);
1644
1645 pdb_set_username(sampass, username, PDB_SET);
1646 pdb_set_domain(sampass, domain, PDB_SET);
1647 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1648 pdb_set_fullname(sampass, fullname, PDB_SET);
1649
1650 if (homedir) {
1651 fstrcpy( tmp_string, homedir );
1652 if (expand_explicit) {
1653 standard_sub_basic( username, domain, tmp_string,
1654 sizeof(tmp_string) );
1655 }
1656 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1657 }
1658 else {
1659 pdb_set_homedir(sampass,
1660 talloc_sub_basic(sampass, username, domain,
1661 lp_logon_home()),
1662 PDB_DEFAULT);
1663 }
1664
1665 if (dir_drive)
1666 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1667 else
1668 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1669
1670 if (logon_script) {
1671 fstrcpy( tmp_string, logon_script );
1672 if (expand_explicit) {
1673 standard_sub_basic( username, domain, tmp_string,
1674 sizeof(tmp_string) );
1675 }
1676 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1677 }
1678 else {
1679 pdb_set_logon_script(sampass,
1680 talloc_sub_basic(sampass, username, domain,
1681 lp_logon_script()),
1682 PDB_DEFAULT);
1683 }
1684
1685 if (profile_path) {
1686 fstrcpy( tmp_string, profile_path );
1687 if (expand_explicit) {
1688 standard_sub_basic( username, domain, tmp_string,
1689 sizeof(tmp_string) );
1690 }
1691 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1692 }
1693 else {
1694 pdb_set_profile_path(sampass,
1695 talloc_sub_basic(sampass, username, domain, lp_logon_path()),
1696 PDB_DEFAULT);
1697 }
1698
1699 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1700 pdb_set_comment(sampass, comment, PDB_SET);
1701 pdb_set_workstations(sampass, workstations, PDB_SET);
1702 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1703
1704 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1705 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1706 ret = False;
1707 goto done;
1708 }
1709 }
1710
1711 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1712 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1713 ret = False;
1714 goto done;
1715 }
1716 }
1717
1718 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1719 if (pwHistLen) {
1720 uint8_t *pw_hist = (uint8_t *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1721 if (!pw_hist) {
1722 ret = False;
1723 goto done;
1724 }
1725 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1726 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1727 int i;
1728 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1729 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1730 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1731 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1732 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1733 PW_HISTORY_ENTRY_LEN);
1734 }
1735 }
1736 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1737 SAFE_FREE(pw_hist);
1738 ret = False;
1739 goto done;
1740 }
1741 SAFE_FREE(pw_hist);
1742 } else {
1743 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1744 }
1745
1746 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1747 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1748 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1749 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1750 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1751 /* Change from V2 is the uint32_t acct_ctrl */
1752 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1753 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1754 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1755
1756 done:
1757
1758 SAFE_FREE(username);
1759 SAFE_FREE(domain);
1760 SAFE_FREE(nt_username);
1761 SAFE_FREE(fullname);
1762 SAFE_FREE(homedir);
1763 SAFE_FREE(dir_drive);
1764 SAFE_FREE(logon_script);
1765 SAFE_FREE(profile_path);
1766 SAFE_FREE(acct_desc);
1767 SAFE_FREE(workstations);
1768 SAFE_FREE(munged_dial);
1769 SAFE_FREE(comment);
1770 SAFE_FREE(lm_pw_ptr);
1771 SAFE_FREE(nt_pw_ptr);
1772 SAFE_FREE(nt_pw_hist_ptr);
1773 SAFE_FREE(hours);
1774
1775 return ret;
1776 }
1777
1778 /*********************************************************************
1779 *********************************************************************/
1780
1781 static uint32_t init_buffer_from_samu_v3 (uint8_t **buf, struct samu *sampass, bool size_only)
1782 {
1783 size_t len, buflen;
1784
1785 /* times are stored as 32bit integer
1786 take care on system with 64bit wide time_t
1787 --SSS */
1788 uint32_t logon_time,
1789 logoff_time,
1790 kickoff_time,
1791 bad_password_time,
1792 pass_last_set_time,
1793 pass_can_change_time,
1794 pass_must_change_time;
1795
1796 uint32_t user_rid, group_rid;
1797
1798 const char *username;
1799 const char *domain;
1800 const char *nt_username;
1801 const char *dir_drive;
1802 const char *comment;
1803 const char *munged_dial;
1804 const char *fullname;
1805 const char *homedir;
1806 const char *logon_script;
1807 const char *profile_path;
1808 const char *acct_desc;
1809 const char *workstations;
1810 uint32_t username_len, domain_len, nt_username_len,
1811 dir_drive_len, comment_len, munged_dial_len,
1812 fullname_len, homedir_len, logon_script_len,
1813 profile_path_len, acct_desc_len, workstations_len;
1814
1815 const uint8_t *lm_pw;
1816 const uint8_t *nt_pw;
1817 const uint8_t *nt_pw_hist;
1818 uint32_t lm_pw_len = 16;
1819 uint32_t nt_pw_len = 16;
1820 uint32_t nt_pw_hist_len;
1821 uint32_t pwHistLen = 0;
1822
1823 *buf = NULL;
1824 buflen = 0;
1825
1826 logon_time = convert_time_t_to_uint32_t(pdb_get_logon_time(sampass));
1827 logoff_time = convert_time_t_to_uint32_t(pdb_get_logoff_time(sampass));
1828 kickoff_time = convert_time_t_to_uint32_t(pdb_get_kickoff_time(sampass));
1829 bad_password_time = convert_time_t_to_uint32_t(pdb_get_bad_password_time(sampass));
1830 pass_can_change_time = convert_time_t_to_uint32_t(pdb_get_pass_can_change_time_noncalc(sampass));
1831 pass_must_change_time = convert_time_t_to_uint32_t(pdb_get_pass_must_change_time(sampass));
1832 pass_last_set_time = convert_time_t_to_uint32_t(pdb_get_pass_last_set_time(sampass));
1833
1834 user_rid = pdb_get_user_rid(sampass);
1835 group_rid = pdb_get_group_rid(sampass);
1836
1837 username = pdb_get_username(sampass);
1838 if (username) {
1839 username_len = strlen(username) +1;
1840 } else {
1841 username_len = 0;
1842 }
1843
1844 domain = pdb_get_domain(sampass);
1845 if (domain) {
1846 domain_len = strlen(domain) +1;
1847 } else {
1848 domain_len = 0;
1849 }
1850
1851 nt_username = pdb_get_nt_username(sampass);
1852 if (nt_username) {
1853 nt_username_len = strlen(nt_username) +1;
1854 } else {
1855 nt_username_len = 0;
1856 }
1857
1858 fullname = pdb_get_fullname(sampass);
1859 if (fullname) {
1860 fullname_len = strlen(fullname) +1;
1861 } else {
1862 fullname_len = 0;
1863 }
1864
1865 /*
1866 * Only updates fields which have been set (not defaults from smb.conf)
1867 */
1868
1869 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1870 dir_drive = pdb_get_dir_drive(sampass);
1871 } else {
1872 dir_drive = NULL;
1873 }
1874 if (dir_drive) {
1875 dir_drive_len = strlen(dir_drive) +1;
1876 } else {
1877 dir_drive_len = 0;
1878 }
1879
1880 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1881 homedir = pdb_get_homedir(sampass);
1882 } else {
1883 homedir = NULL;
1884 }
1885 if (homedir) {
1886 homedir_len = strlen(homedir) +1;
1887 } else {
1888 homedir_len = 0;
1889 }
1890
1891 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1892 logon_script = pdb_get_logon_script(sampass);
1893 } else {
1894 logon_script = NULL;
1895 }
1896 if (logon_script) {
1897 logon_script_len = strlen(logon_script) +1;
1898 } else {
1899 logon_script_len = 0;
1900 }
1901
1902 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1903 profile_path = pdb_get_profile_path(sampass);
1904 } else {
1905 profile_path = NULL;
1906 }
1907 if (profile_path) {
1908 profile_path_len = strlen(profile_path) +1;
1909 } else {
1910 profile_path_len = 0;
1911 }
1912
1913 lm_pw = pdb_get_lanman_passwd(sampass);
1914 if (!lm_pw) {
1915 lm_pw_len = 0;
1916 }
1917
1918 nt_pw = pdb_get_nt_passwd(sampass);
1919 if (!nt_pw) {
1920 nt_pw_len = 0;
1921 }
1922
1923 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1924 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
1925 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1926 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1927 } else {
1928 nt_pw_hist_len = 0;
1929 }
1930
1931 acct_desc = pdb_get_acct_desc(sampass);
1932 if (acct_desc) {
1933 acct_desc_len = strlen(acct_desc) +1;
1934 } else {
1935 acct_desc_len = 0;
1936 }
1937
1938 workstations = pdb_get_workstations(sampass);
1939 if (workstations) {
1940 workstations_len = strlen(workstations) +1;
1941 } else {
1942 workstations_len = 0;
1943 }
1944
1945 comment = pdb_get_comment(sampass);
1946 if (comment) {
1947 comment_len = strlen(comment) +1;
1948 } else {
1949 comment_len = 0;
1950 }
1951
1952 munged_dial = pdb_get_munged_dial(sampass);
1953 if (munged_dial) {
1954 munged_dial_len = strlen(munged_dial) +1;
1955 } else {
1956 munged_dial_len = 0;
1957 }
1958
1959 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1960
1961 /* one time to get the size needed */
1962 len = tdb_pack(NULL, 0, SAMU_BUFFER_FORMAT_V3,
1963 logon_time, /* d */
1964 logoff_time, /* d */
1965 kickoff_time, /* d */
1966 bad_password_time, /* d */
1967 pass_last_set_time, /* d */
1968 pass_can_change_time, /* d */
1969 pass_must_change_time, /* d */
1970 username_len, username, /* B */
1971 domain_len, domain, /* B */
1972 nt_username_len, nt_username, /* B */
1973 fullname_len, fullname, /* B */
1974 homedir_len, homedir, /* B */
1975 dir_drive_len, dir_drive, /* B */
1976 logon_script_len, logon_script, /* B */
1977 profile_path_len, profile_path, /* B */
1978 acct_desc_len, acct_desc, /* B */
1979 workstations_len, workstations, /* B */
1980 comment_len, comment, /* B */
1981 munged_dial_len, munged_dial, /* B */
1982 user_rid, /* d */
1983 group_rid, /* d */
1984 lm_pw_len, lm_pw, /* B */
1985 nt_pw_len, nt_pw, /* B */
1986 nt_pw_hist_len, nt_pw_hist, /* B */
1987 pdb_get_acct_ctrl(sampass), /* d */
1988 pdb_get_logon_divs(sampass), /* w */
1989 pdb_get_hours_len(sampass), /* d */
1990 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1991 pdb_get_bad_password_count(sampass), /* w */
1992 pdb_get_logon_count(sampass), /* w */
1993 pdb_get_unknown_6(sampass)); /* d */
1994
1995 if (size_only) {
1996 return buflen;
1997 }
1998
1999 /* malloc the space needed */
2000 if ( (*buf=(uint8_t*)SMB_MALLOC(len)) == NULL) {
2001 DEBUG(0,("init_buffer_from_samu_v3: Unable to malloc() memory for buffer!\n"));
2002 return (-1);
2003 }
2004
2005 /* now for the real call to tdb_pack() */
2006 buflen = tdb_pack(*buf, len, SAMU_BUFFER_FORMAT_V3,
2007 logon_time, /* d */
2008 logoff_time, /* d */
2009 kickoff_time, /* d */
2010 bad_password_time, /* d */
2011 pass_last_set_time, /* d */
2012 pass_can_change_time, /* d */
2013 pass_must_change_time, /* d */
2014 username_len, username, /* B */
2015 domain_len, domain, /* B */
2016 nt_username_len, nt_username, /* B */
2017 fullname_len, fullname, /* B */
2018 homedir_len, homedir, /* B */
2019 dir_drive_len, dir_drive, /* B */
2020 logon_script_len, logon_script, /* B */
2021 profile_path_len, profile_path, /* B */
2022 acct_desc_len, acct_desc, /* B */
2023 workstations_len, workstations, /* B */
2024 comment_len, comment, /* B */
2025 munged_dial_len, munged_dial, /* B */
2026 user_rid, /* d */
2027 group_rid, /* d */
2028 lm_pw_len, lm_pw, /* B */
2029 nt_pw_len, nt_pw, /* B */
2030 nt_pw_hist_len, nt_pw_hist, /* B */
2031 pdb_get_acct_ctrl(sampass), /* d */
2032 pdb_get_logon_divs(sampass), /* w */
2033 pdb_get_hours_len(sampass), /* d */
2034 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2035 pdb_get_bad_password_count(sampass), /* w */
2036 pdb_get_logon_count(sampass), /* w */
2037 pdb_get_unknown_6(sampass)); /* d */
2038
2039 /* check to make sure we got it correct */
2040 if (buflen != len) {
2041 DEBUG(0, ("init_buffer_from_samu_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2042 (unsigned long)buflen, (unsigned long)len));
2043 /* error */
2044 SAFE_FREE (*buf);
2045 return (-1);
2046 }
2047
2048 return (buflen);
2049 }
2050
2051 static bool init_samu_from_buffer_v4(struct samu *sampass, uint8_t *buf, uint32_t buflen)
2052 {
2053 /* nothing changed between V3 and V4 */
2054 return init_samu_from_buffer_v3(sampass, buf, buflen);
2055 }
2056
2057 static uint32_t init_buffer_from_samu_v4(uint8_t **buf, struct samu *sampass, bool size_only)
2058 {
2059 /* nothing changed between V3 and V4 */
2060 return init_buffer_from_samu_v3(buf, sampass, size_only);
2061 }
2062
2063 /**********************************************************************
2064 Intialize a struct samu struct from a BYTE buffer of size len
2065 *********************************************************************/
2066
2067 bool init_samu_from_buffer(struct samu *sampass, uint32_t level,
2068 uint8_t *buf, uint32_t buflen)
2069 {
2070 switch (level) {
2071 case SAMU_BUFFER_V0:
2072 return init_samu_from_buffer_v0(sampass, buf, buflen);
2073 case SAMU_BUFFER_V1:
2074 return init_samu_from_buffer_v1(sampass, buf, buflen);
2075 case SAMU_BUFFER_V2:
2076 return init_samu_from_buffer_v2(sampass, buf, buflen);
2077 case SAMU_BUFFER_V3:
2078 return init_samu_from_buffer_v3(sampass, buf, buflen);
2079 case SAMU_BUFFER_V4:
2080 return init_samu_from_buffer_v4(sampass, buf, buflen);
2081 }
2082
2083 return false;
2084 }
2085
2086 /**********************************************************************
2087 Intialize a BYTE buffer from a struct samu struct
2088 *********************************************************************/
2089
2090 uint32_t init_buffer_from_samu (uint8_t **buf, struct samu *sampass, bool size_only)
2091 {
2092 return init_buffer_from_samu_v4(buf, sampass, size_only);
2093 }
2094
2095 /*********************************************************************
2096 *********************************************************************/
2097
2098 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
2099 {
2100 uint8_t *buf = NULL;
2101 int len;
2102
2103 len = init_buffer_from_samu(&buf, src, False);
2104 if (len == -1 || !buf) {
2105 SAFE_FREE(buf);
2106 return False;
2107 }
2108
2109 if (!init_samu_from_buffer( dst, SAMU_BUFFER_LATEST, buf, len )) {
2110 free(buf);
2111 return False;
2112 }
2113
2114 dst->methods = src->methods;
2115
2116 if ( src->unix_pw ) {
2117 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
2118 if (!dst->unix_pw) {
2119 free(buf);
2120 return False;
2121 }
2122 }
2123
2124 if (src->group_sid) {
2125 pdb_set_group_sid(dst, src->group_sid, PDB_SET);
2126 }
2127
2128 free(buf);
2129 return True;
2130 }
2131
2132 /*********************************************************************
2133 Update the bad password count checking the PDB_POLICY_RESET_COUNT_TIME
2134 *********************************************************************/
2135
2136 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
2137 {
2138 time_t LastBadPassword;
2139 uint16_t BadPasswordCount;
2140 uint32_t resettime;
2141 bool res;
2142
2143 BadPasswordCount = pdb_get_bad_password_count(sampass);
2144 if (!BadPasswordCount) {
2145 DEBUG(9, ("No bad password attempts.\n"));
2146 return True;
2147 }
2148
2149 become_root();
2150 res = pdb_get_account_policy(PDB_POLICY_RESET_COUNT_TIME, &resettime);
2151 unbecome_root();
2152
2153 if (!res) {
2154 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2155 return False;
2156 }
2157
2158 /* First, check if there is a reset time to compare */
2159 if ((resettime == (uint32_t) -1) || (resettime == 0)) {
2160 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2161 return True;
2162 }
2163
2164 LastBadPassword = pdb_get_bad_password_time(sampass);
2165 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2166 (uint32_t) LastBadPassword, resettime, (uint32_t)time(NULL)));
2167 if (time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(resettime)*60)){
2168 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2169 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2170 if (updated) {
2171 *updated = True;
2172 }
2173 }
2174
2175 return True;
2176 }
2177
2178 /*********************************************************************
2179 Update the ACB_AUTOLOCK flag checking the PDB_POLICY_LOCK_ACCOUNT_DURATION
2180 *********************************************************************/
2181
2182 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
2183 {
2184 uint32_t duration;
2185 time_t LastBadPassword;
2186 bool res;
2187
2188 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2189 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2190 pdb_get_username(sampass)));
2191 return True;
2192 }
2193
2194 become_root();
2195 res = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION, &duration);
2196 unbecome_root();
2197
2198 if (!res) {
2199 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2200 return False;
2201 }
2202
2203 /* First, check if there is a duration to compare */
2204 if ((duration == (uint32_t) -1) || (duration == 0)) {
2205 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2206 return True;
2207 }
2208
2209 LastBadPassword = pdb_get_bad_password_time(sampass);
2210 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2211 pdb_get_username(sampass), (uint32_t)LastBadPassword, duration*60, (uint32_t)time(NULL)));
2212
2213 if (LastBadPassword == (time_t)0) {
2214 DEBUG(1,("pdb_update_autolock_flag: Account %s "
2215 "administratively locked out with no bad password "
2216 "time. Leaving locked out.\n",
2217 pdb_get_username(sampass) ));
2218 return True;
2219 }
2220
2221 if ((time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(duration) * 60))) {
2222 pdb_set_acct_ctrl(sampass,
2223 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2224 PDB_CHANGED);
2225 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2226 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2227 if (updated) {
2228 *updated = True;
2229 }
2230 }
2231
2232 return True;
2233 }
2234
2235 /*********************************************************************
2236 Increment the bad_password_count
2237 *********************************************************************/
2238
2239 bool pdb_increment_bad_password_count(struct samu *sampass)
2240 {
2241 uint32_t account_policy_lockout;
2242 bool autolock_updated = False, badpw_updated = False;
2243 bool ret;
2244
2245 /* Retrieve the account lockout policy */
2246 become_root();
2247 ret = pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2248 unbecome_root();
2249 if ( !ret ) {
2250 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2251 return False;
2252 }
2253
2254 /* If there is no policy, we don't need to continue checking */
2255 if (!account_policy_lockout) {
2256 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2257 return True;
2258 }
2259
2260 /* Check if the autolock needs to be cleared */
2261 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2262 return False;
2263
2264 /* Check if the badpw count needs to be reset */
2265 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2266 return False;
2267
2268 /*
2269 Ok, now we can assume that any resetting that needs to be
2270 done has been done, and just get on with incrementing
2271 and autolocking if necessary
2272 */
2273
2274 pdb_set_bad_password_count(sampass,
2275 pdb_get_bad_password_count(sampass)+1,
2276 PDB_CHANGED);
2277 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2278
2279
2280 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2281 return True;
2282
2283 if (!pdb_set_acct_ctrl(sampass,
2284 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2285 PDB_CHANGED)) {
2286 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2287 return False;
2288 }
2289
2290 return True;
2291 }
2292
2293 bool is_dc_trusted_domain_situation(const char *domain_name)
2294 {
2295 return IS_DC && !strequal(domain_name, lp_workgroup());
2296 }
2297
2298 /*******************************************************************
2299 Wrapper around retrieving the clear text trust account password.
2300 appropriate account name is stored in account_name.
2301 Caller must free password, but not account_name.
2302 *******************************************************************/
2303
2304 bool get_trust_pw_clear(const char *domain, char **ret_pwd,
2305 const char **account_name,
2306 enum netr_SchannelType *channel)
2307 {
2308 char *pwd;
2309 time_t last_set_time;
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, ret_pwd, 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 return true;
2337 }
2338
2339 /*
2340 * Since we can only be member of one single domain, we are now
2341 * in a member situation:
2342 *
2343 * - Either we are a DC (selfjoined) and the domain is our
2344 * own domain.
2345 * - Or we are on a member and the domain is our own or some
2346 * other (potentially trusted) domain.
2347 *
2348 * In both cases, we can only get the machine account password
2349 * for our own domain to connect to our own dc. (For a member,
2350 * request to trusted domains are performed through our dc.)
2351 *
2352 * So we simply use our own domain name to retrieve the
2353 * machine account passowrd and ignore the request domain here.
2354 */
2355
2356 pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
2357
2358 if (pwd != NULL) {
2359 *ret_pwd = pwd;
2360 if (account_name != NULL) {
2361 *account_name = lp_netbios_name();
2362 }
2363
2364 return true;
2365 }
2366
2367 DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
2368 "account password for domain %s\n", domain));
2369 return false;
2370 }
2371
2372 /*******************************************************************
2373 Wrapper around retrieving the trust account password.
2374 appropriate account name is stored in account_name.
2375 *******************************************************************/
2376
2377 bool get_trust_pw_hash(const char *domain, uint8_t ret_pwd[16],
2378 const char **account_name,
2379 enum netr_SchannelType *channel)
2380 {
2381 char *pwd = NULL;
2382 time_t last_set_time;
2383
2384 if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
2385 E_md4hash(pwd, ret_pwd);
2386 SAFE_FREE(pwd);
2387 return true;
2388 } else if (is_dc_trusted_domain_situation(domain)) {
2389 return false;
2390 }
2391
2392 /* as a fallback, try to get the hashed pwd directly from the tdb... */
2393
2394 if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
2395 &last_set_time,
2396 channel))
2397 {
2398 if (account_name != NULL) {
2399 *account_name = lp_netbios_name();
2400 }
2401
2402 return true;
2403 }
2404
2405 DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
2406 "password for domain %s\n", domain));
2407 return False;
2408 }
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