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s3:smbd: let default_sys_recvfile() and sys_recvfile() cope with non-blocking sockets.
[Samba/wip.git] / source3 / passdb / passdb.c
blob8cf592cc40149b723486893a89f4ef9f845f71ee
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_guest_account();
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, NULL, 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, NULL, 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, NULL, 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, NULL, 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 hex_encode_buf(p, hours, 21);
434 } else {
435 strlcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 44);
436 }
437 }
438
439 /*************************************************************
440 Routine to get the 42 hex characters and turn them
441 into a 21 byte array.
442 **************************************************************/
443
444 bool pdb_gethexhours(const char *p, unsigned char *hours)
445 {
446 int i;
447 unsigned char lonybble, hinybble;
448 const char *hexchars = "0123456789ABCDEF";
449 char *p1, *p2;
450
451 if (!p) {
452 return (False);
453 }
454
455 for (i = 0; i < 42; i += 2) {
456 hinybble = toupper_m(p[i]);
457 lonybble = toupper_m(p[i + 1]);
458
459 p1 = strchr(hexchars, hinybble);
460 p2 = strchr(hexchars, lonybble);
461
462 if (!p1 || !p2) {
463 return (False);
464 }
465
466 hinybble = PTR_DIFF(p1, hexchars);
467 lonybble = PTR_DIFF(p2, hexchars);
468
469 hours[i / 2] = (hinybble << 4) | lonybble;
470 }
471 return (True);
472 }
473
474 /********************************************************************
475 ********************************************************************/
476
477 int algorithmic_rid_base(void)
478 {
479 int rid_offset;
480
481 rid_offset = lp_algorithmic_rid_base();
482
483 if (rid_offset < BASE_RID) {
484 /* Try to prevent admin foot-shooting, we can't put algorithmic
485 rids below 1000, that's the 'well known RIDs' on NT */
486 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
487 rid_offset = BASE_RID;
488 }
489 if (rid_offset & 1) {
490 DEBUG(0, ("algorithmic rid base must be even\n"));
491 rid_offset += 1;
492 }
493 return rid_offset;
494 }
495
496 /*******************************************************************
497 Converts NT user RID to a UNIX uid.
498 ********************************************************************/
499
500 uid_t algorithmic_pdb_user_rid_to_uid(uint32_t user_rid)
501 {
502 int rid_offset = algorithmic_rid_base();
503 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
504 }
505
506 uid_t max_algorithmic_uid(void)
507 {
508 return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
509 }
510
511 /*******************************************************************
512 converts UNIX uid to an NT User RID.
513 ********************************************************************/
514
515 uint32_t algorithmic_pdb_uid_to_user_rid(uid_t uid)
516 {
517 int rid_offset = algorithmic_rid_base();
518 return (((((uint32_t)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
519 }
520
521 /*******************************************************************
522 Converts NT group RID to a UNIX gid.
523 ********************************************************************/
524
525 gid_t pdb_group_rid_to_gid(uint32_t group_rid)
526 {
527 int rid_offset = algorithmic_rid_base();
528 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
529 }
530
531 gid_t max_algorithmic_gid(void)
532 {
533 return pdb_group_rid_to_gid(0xffffffff);
534 }
535
536 /*******************************************************************
537 converts NT Group RID to a UNIX uid.
538
539 warning: you must not call that function only
540 you must do a call to the group mapping first.
541 there is not anymore a direct link between the gid and the rid.
542 ********************************************************************/
543
544 uint32_t algorithmic_pdb_gid_to_group_rid(gid_t gid)
545 {
546 int rid_offset = algorithmic_rid_base();
547 return (((((uint32_t)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
548 }
549
550 /*******************************************************************
551 Decides if a RID is a well known RID.
552 ********************************************************************/
553
554 static bool rid_is_well_known(uint32_t rid)
555 {
556 /* Not using rid_offset here, because this is the actual
557 NT fixed value (1000) */
558
559 return (rid < BASE_RID);
560 }
561
562 /*******************************************************************
563 Decides if a RID is a user or group RID.
564 ********************************************************************/
565
566 bool algorithmic_pdb_rid_is_user(uint32_t rid)
567 {
568 if ( rid_is_well_known(rid) ) {
569 /*
570 * The only well known user RIDs are DOMAIN_RID_ADMINISTRATOR
571 * and DOMAIN_RID_GUEST.
572 */
573 if(rid == DOMAIN_RID_ADMINISTRATOR || rid == DOMAIN_RID_GUEST)
574 return True;
575 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
576 return True;
577 }
578 return False;
579 }
580
581 /*******************************************************************
582 Convert a name into a SID. Used in the lookup name rpc.
583 ********************************************************************/
584
585 bool lookup_global_sam_name(const char *name, int flags, uint32_t *rid,
586 enum lsa_SidType *type)
587 {
588 GROUP_MAP *map;
589 bool ret;
590
591 /* Windows treats "MACHINE\None" as a special name for
592 rid 513 on non-DCs. You cannot create a user or group
593 name "None" on Windows. You will get an error that
594 the group already exists. */
595
596 if ( strequal( name, "None" ) ) {
597 *rid = DOMAIN_RID_USERS;
598 *type = SID_NAME_DOM_GRP;
599
600 return True;
601 }
602
603 /* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
604 * correctly in the case where foo also exists as a user. If the flag
605 * is set, don't look for users at all. */
606
607 if ((flags & LOOKUP_NAME_GROUP) == 0) {
608 struct samu *sam_account = NULL;
609 struct dom_sid user_sid;
610
611 if ( !(sam_account = samu_new( NULL )) ) {
612 return False;
613 }
614
615 become_root();
616 ret = pdb_getsampwnam(sam_account, name);
617 unbecome_root();
618
619 if (ret) {
620 sid_copy(&user_sid, pdb_get_user_sid(sam_account));
621 }
622
623 TALLOC_FREE(sam_account);
624
625 if (ret) {
626 if (!sid_check_is_in_our_sam(&user_sid)) {
627 DEBUG(0, ("User %s with invalid SID %s in passdb\n",
628 name, sid_string_dbg(&user_sid)));
629 return False;
630 }
631
632 sid_peek_rid(&user_sid, rid);
633 *type = SID_NAME_USER;
634 return True;
635 }
636 }
637
638 /*
639 * Maybe it is a group ?
640 */
641
642 map = talloc_zero(NULL, GROUP_MAP);
643 if (!map) {
644 return false;
645 }
646
647 become_root();
648 ret = pdb_getgrnam(map, name);
649 unbecome_root();
650
651 if (!ret) {
652 TALLOC_FREE(map);
653 return False;
654 }
655
656 /* BUILTIN groups are looked up elsewhere */
657 if (!sid_check_is_in_our_sam(&map->sid)) {
658 DEBUG(10, ("Found group %s (%s) not in our domain -- "
659 "ignoring.", name, sid_string_dbg(&map->sid)));
660 TALLOC_FREE(map);
661 return False;
662 }
663
664 /* yes it's a mapped group */
665 sid_peek_rid(&map->sid, rid);
666 *type = map->sid_name_use;
667 TALLOC_FREE(map);
668 return True;
669 }
670
671 /*************************************************************
672 Change a password entry in the local passdb backend.
673
674 Assumptions:
675 - always called as root
676 - ignores the account type except when adding a new account
677 - will create/delete the unix account if the relative
678 add/delete user script is configured
679
680 *************************************************************/
681
682 NTSTATUS local_password_change(const char *user_name,
683 int local_flags,
684 const char *new_passwd,
685 char **pp_err_str,
686 char **pp_msg_str)
687 {
688 TALLOC_CTX *tosctx;
689 struct samu *sam_pass;
690 uint32_t acb;
691 uint32_t rid;
692 NTSTATUS result;
693 bool user_exists;
694 int ret = -1;
695
696 *pp_err_str = NULL;
697 *pp_msg_str = NULL;
698
699 tosctx = talloc_tos();
700
701 sam_pass = samu_new(tosctx);
702 if (!sam_pass) {
703 result = NT_STATUS_NO_MEMORY;
704 goto done;
705 }
706
707 /* Get the smb passwd entry for this user */
708 user_exists = pdb_getsampwnam(sam_pass, user_name);
709
710 /* Check delete first, we don't need to do anything else if we
711 * are going to delete the acocunt */
712 if (user_exists && (local_flags & LOCAL_DELETE_USER)) {
713
714 result = pdb_delete_user(tosctx, sam_pass);
715 if (!NT_STATUS_IS_OK(result)) {
716 ret = asprintf(pp_err_str,
717 "Failed to delete entry for user %s.\n",
718 user_name);
719 if (ret < 0) {
720 *pp_err_str = NULL;
721 }
722 result = NT_STATUS_UNSUCCESSFUL;
723 } else {
724 ret = asprintf(pp_msg_str,
725 "Deleted user %s.\n",
726 user_name);
727 if (ret < 0) {
728 *pp_msg_str = NULL;
729 }
730 }
731 goto done;
732 }
733
734 if (user_exists && (local_flags & LOCAL_ADD_USER)) {
735 /* the entry already existed */
736 local_flags &= ~LOCAL_ADD_USER;
737 }
738
739 if (!user_exists && !(local_flags & LOCAL_ADD_USER)) {
740 ret = asprintf(pp_err_str,
741 "Failed to find entry for user %s.\n",
742 user_name);
743 if (ret < 0) {
744 *pp_err_str = NULL;
745 }
746 result = NT_STATUS_NO_SUCH_USER;
747 goto done;
748 }
749
750 /* First thing add the new user if we are required to do so */
751 if (local_flags & LOCAL_ADD_USER) {
752
753 if (local_flags & LOCAL_TRUST_ACCOUNT) {
754 acb = ACB_WSTRUST;
755 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
756 acb = ACB_DOMTRUST;
757 } else {
758 acb = ACB_NORMAL;
759 }
760
761 result = pdb_create_user(tosctx, user_name, acb, &rid);
762 if (!NT_STATUS_IS_OK(result)) {
763 ret = asprintf(pp_err_str,
764 "Failed to add entry for user %s.\n",
765 user_name);
766 if (ret < 0) {
767 *pp_err_str = NULL;
768 }
769 result = NT_STATUS_UNSUCCESSFUL;
770 goto done;
771 }
772
773 sam_pass = samu_new(tosctx);
774 if (!sam_pass) {
775 result = NT_STATUS_NO_MEMORY;
776 goto done;
777 }
778
779 /* Now get back the smb passwd entry for this new user */
780 user_exists = pdb_getsampwnam(sam_pass, user_name);
781 if (!user_exists) {
782 ret = asprintf(pp_err_str,
783 "Failed to add entry for user %s.\n",
784 user_name);
785 if (ret < 0) {
786 *pp_err_str = NULL;
787 }
788 result = NT_STATUS_UNSUCCESSFUL;
789 goto done;
790 }
791 }
792
793 acb = pdb_get_acct_ctrl(sam_pass);
794
795 /*
796 * We are root - just write the new password
797 * and the valid last change time.
798 */
799 if ((local_flags & LOCAL_SET_NO_PASSWORD) && !(acb & ACB_PWNOTREQ)) {
800 acb |= ACB_PWNOTREQ;
801 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
802 ret = asprintf(pp_err_str,
803 "Failed to set 'no password required' "
804 "flag for user %s.\n", user_name);
805 if (ret < 0) {
806 *pp_err_str = NULL;
807 }
808 result = NT_STATUS_UNSUCCESSFUL;
809 goto done;
810 }
811 }
812
813 if (local_flags & LOCAL_SET_PASSWORD) {
814 /*
815 * If we're dealing with setting a completely empty user account
816 * ie. One with a password of 'XXXX', but not set disabled (like
817 * an account created from scratch) then if the old password was
818 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
819 * We remove that as we're giving this user their first password
820 * and the decision hasn't really been made to disable them (ie.
821 * don't create them disabled). JRA.
822 */
823 if ((pdb_get_lanman_passwd(sam_pass) == NULL) &&
824 (acb & ACB_DISABLED)) {
825 acb &= (~ACB_DISABLED);
826 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
827 ret = asprintf(pp_err_str,
828 "Failed to unset 'disabled' "
829 "flag for user %s.\n",
830 user_name);
831 if (ret < 0) {
832 *pp_err_str = NULL;
833 }
834 result = NT_STATUS_UNSUCCESSFUL;
835 goto done;
836 }
837 }
838
839 acb &= (~ACB_PWNOTREQ);
840 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
841 ret = asprintf(pp_err_str,
842 "Failed to unset 'no password required'"
843 " flag for user %s.\n", user_name);
844 if (ret < 0) {
845 *pp_err_str = NULL;
846 }
847 result = NT_STATUS_UNSUCCESSFUL;
848 goto done;
849 }
850
851 if (!pdb_set_plaintext_passwd(sam_pass, new_passwd)) {
852 ret = asprintf(pp_err_str,
853 "Failed to set password for "
854 "user %s.\n", user_name);
855 if (ret < 0) {
856 *pp_err_str = NULL;
857 }
858 result = NT_STATUS_UNSUCCESSFUL;
859 goto done;
860 }
861 }
862
863 if ((local_flags & LOCAL_DISABLE_USER) && !(acb & ACB_DISABLED)) {
864 acb |= ACB_DISABLED;
865 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
866 ret = asprintf(pp_err_str,
867 "Failed to set 'disabled' flag for "
868 "user %s.\n", user_name);
869 if (ret < 0) {
870 *pp_err_str = NULL;
871 }
872 result = NT_STATUS_UNSUCCESSFUL;
873 goto done;
874 }
875 }
876
877 if ((local_flags & LOCAL_ENABLE_USER) && (acb & ACB_DISABLED)) {
878 acb &= (~ACB_DISABLED);
879 if (!pdb_set_acct_ctrl(sam_pass, acb, PDB_CHANGED)) {
880 ret = asprintf(pp_err_str,
881 "Failed to unset 'disabled' flag for "
882 "user %s.\n", user_name);
883 if (ret < 0) {
884 *pp_err_str = NULL;
885 }
886 result = NT_STATUS_UNSUCCESSFUL;
887 goto done;
888 }
889 }
890
891 /* now commit changes if any */
892 result = pdb_update_sam_account(sam_pass);
893 if (!NT_STATUS_IS_OK(result)) {
894 ret = asprintf(pp_err_str,
895 "Failed to modify entry for user %s.\n",
896 user_name);
897 if (ret < 0) {
898 *pp_err_str = NULL;
899 }
900 goto done;
901 }
902
903 if (local_flags & LOCAL_ADD_USER) {
904 ret = asprintf(pp_msg_str, "Added user %s.\n", user_name);
905 } else if (local_flags & LOCAL_DISABLE_USER) {
906 ret = asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
907 } else if (local_flags & LOCAL_ENABLE_USER) {
908 ret = asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
909 } else if (local_flags & LOCAL_SET_NO_PASSWORD) {
910 ret = asprintf(pp_msg_str,
911 "User %s password set to none.\n", user_name);
912 }
913
914 if (ret < 0) {
915 *pp_msg_str = NULL;
916 }
917
918 result = NT_STATUS_OK;
919
920 done:
921 TALLOC_FREE(sam_pass);
922 return result;
923 }
924
925 /**********************************************************************
926 Marshall/unmarshall struct samu structs.
927 *********************************************************************/
928
929 #define SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
930 #define SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
931 #define SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
932 #define SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
933 /* nothing changed between V3 and V4 */
934
935 /*********************************************************************
936 *********************************************************************/
937
938 static bool init_samu_from_buffer_v0(struct samu *sampass, uint8_t *buf, uint32_t buflen)
939 {
940
941 /* times are stored as 32bit integer
942 take care on system with 64bit wide time_t
943 --SSS */
944 uint32_t logon_time,
945 logoff_time,
946 kickoff_time,
947 pass_last_set_time,
948 pass_can_change_time,
949 pass_must_change_time;
950 char *username = NULL;
951 char *domain = NULL;
952 char *nt_username = NULL;
953 char *dir_drive = NULL;
954 char *unknown_str = NULL;
955 char *munged_dial = NULL;
956 char *fullname = NULL;
957 char *homedir = NULL;
958 char *logon_script = NULL;
959 char *profile_path = NULL;
960 char *acct_desc = NULL;
961 char *workstations = NULL;
962 uint32_t username_len, domain_len, nt_username_len,
963 dir_drive_len, unknown_str_len, munged_dial_len,
964 fullname_len, homedir_len, logon_script_len,
965 profile_path_len, acct_desc_len, workstations_len;
966
967 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
968 uint16_t acct_ctrl, logon_divs;
969 uint16_t bad_password_count, logon_count;
970 uint8_t *hours = NULL;
971 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
972 uint32_t len = 0;
973 uint32_t lm_pw_len, nt_pw_len, hourslen;
974 bool ret = True;
975
976 if(sampass == NULL || buf == NULL) {
977 DEBUG(0, ("init_samu_from_buffer_v0: NULL parameters found!\n"));
978 return False;
979 }
980
981 /* SAMU_BUFFER_FORMAT_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
982
983 /* unpack the buffer into variables */
984 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V0,
985 &logon_time, /* d */
986 &logoff_time, /* d */
987 &kickoff_time, /* d */
988 &pass_last_set_time, /* d */
989 &pass_can_change_time, /* d */
990 &pass_must_change_time, /* d */
991 &username_len, &username, /* B */
992 &domain_len, &domain, /* B */
993 &nt_username_len, &nt_username, /* B */
994 &fullname_len, &fullname, /* B */
995 &homedir_len, &homedir, /* B */
996 &dir_drive_len, &dir_drive, /* B */
997 &logon_script_len, &logon_script, /* B */
998 &profile_path_len, &profile_path, /* B */
999 &acct_desc_len, &acct_desc, /* B */
1000 &workstations_len, &workstations, /* B */
1001 &unknown_str_len, &unknown_str, /* B */
1002 &munged_dial_len, &munged_dial, /* B */
1003 &user_rid, /* d */
1004 &group_rid, /* d */
1005 &lm_pw_len, &lm_pw_ptr, /* B */
1006 &nt_pw_len, &nt_pw_ptr, /* B */
1007 &acct_ctrl, /* w */
1008 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1009 &logon_divs, /* w */
1010 &hours_len, /* d */
1011 &hourslen, &hours, /* B */
1012 &bad_password_count, /* w */
1013 &logon_count, /* w */
1014 &unknown_6); /* d */
1015
1016 if (len == (uint32_t) -1) {
1017 ret = False;
1018 goto done;
1019 }
1020
1021 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1022 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1023 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1024 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1025 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1026
1027 pdb_set_username(sampass, username, PDB_SET);
1028 pdb_set_domain(sampass, domain, PDB_SET);
1029 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1030 pdb_set_fullname(sampass, fullname, PDB_SET);
1031
1032 if (homedir) {
1033 pdb_set_homedir(sampass, homedir, PDB_SET);
1034 }
1035 else {
1036 pdb_set_homedir(sampass,
1037 talloc_sub_basic(sampass, username, domain,
1038 lp_logon_home()),
1039 PDB_DEFAULT);
1040 }
1041
1042 if (dir_drive)
1043 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1044 else {
1045 pdb_set_dir_drive(sampass,
1046 talloc_sub_basic(sampass, username, domain,
1047 lp_logon_drive()),
1048 PDB_DEFAULT);
1049 }
1050
1051 if (logon_script)
1052 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1053 else {
1054 pdb_set_logon_script(sampass,
1055 talloc_sub_basic(sampass, username, domain,
1056 lp_logon_script()),
1057 PDB_DEFAULT);
1058 }
1059
1060 if (profile_path) {
1061 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1062 } else {
1063 pdb_set_profile_path(sampass,
1064 talloc_sub_basic(sampass, username, domain,
1065 lp_logon_path()),
1066 PDB_DEFAULT);
1067 }
1068
1069 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1070 pdb_set_workstations(sampass, workstations, PDB_SET);
1071 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1072
1073 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1074 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1075 ret = False;
1076 goto done;
1077 }
1078 }
1079
1080 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1081 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1082 ret = False;
1083 goto done;
1084 }
1085 }
1086
1087 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1088 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1089 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1090 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1091 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1092 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1093 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1094 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1095 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1096 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1097
1098 done:
1099
1100 SAFE_FREE(username);
1101 SAFE_FREE(domain);
1102 SAFE_FREE(nt_username);
1103 SAFE_FREE(fullname);
1104 SAFE_FREE(homedir);
1105 SAFE_FREE(dir_drive);
1106 SAFE_FREE(logon_script);
1107 SAFE_FREE(profile_path);
1108 SAFE_FREE(acct_desc);
1109 SAFE_FREE(workstations);
1110 SAFE_FREE(munged_dial);
1111 SAFE_FREE(unknown_str);
1112 SAFE_FREE(lm_pw_ptr);
1113 SAFE_FREE(nt_pw_ptr);
1114 SAFE_FREE(hours);
1115
1116 return ret;
1117 }
1118
1119 /*********************************************************************
1120 *********************************************************************/
1121
1122 static bool init_samu_from_buffer_v1(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1123 {
1124
1125 /* times are stored as 32bit integer
1126 take care on system with 64bit wide time_t
1127 --SSS */
1128 uint32_t logon_time,
1129 logoff_time,
1130 kickoff_time,
1131 bad_password_time,
1132 pass_last_set_time,
1133 pass_can_change_time,
1134 pass_must_change_time;
1135 char *username = NULL;
1136 char *domain = NULL;
1137 char *nt_username = NULL;
1138 char *dir_drive = NULL;
1139 char *unknown_str = NULL;
1140 char *munged_dial = NULL;
1141 char *fullname = NULL;
1142 char *homedir = NULL;
1143 char *logon_script = NULL;
1144 char *profile_path = NULL;
1145 char *acct_desc = NULL;
1146 char *workstations = NULL;
1147 uint32_t username_len, domain_len, nt_username_len,
1148 dir_drive_len, unknown_str_len, munged_dial_len,
1149 fullname_len, homedir_len, logon_script_len,
1150 profile_path_len, acct_desc_len, workstations_len;
1151
1152 uint32_t user_rid, group_rid, remove_me, hours_len, unknown_6;
1153 uint16_t acct_ctrl, logon_divs;
1154 uint16_t bad_password_count, logon_count;
1155 uint8_t *hours = NULL;
1156 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1157 uint32_t len = 0;
1158 uint32_t lm_pw_len, nt_pw_len, hourslen;
1159 bool ret = True;
1160
1161 if(sampass == NULL || buf == NULL) {
1162 DEBUG(0, ("init_samu_from_buffer_v1: NULL parameters found!\n"));
1163 return False;
1164 }
1165
1166 /* SAMU_BUFFER_FORMAT_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1167
1168 /* unpack the buffer into variables */
1169 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V1,
1170 &logon_time, /* d */
1171 &logoff_time, /* d */
1172 &kickoff_time, /* d */
1173 /* Change from V0 is addition of bad_password_time field. */
1174 &bad_password_time, /* d */
1175 &pass_last_set_time, /* d */
1176 &pass_can_change_time, /* d */
1177 &pass_must_change_time, /* d */
1178 &username_len, &username, /* B */
1179 &domain_len, &domain, /* B */
1180 &nt_username_len, &nt_username, /* B */
1181 &fullname_len, &fullname, /* B */
1182 &homedir_len, &homedir, /* B */
1183 &dir_drive_len, &dir_drive, /* B */
1184 &logon_script_len, &logon_script, /* B */
1185 &profile_path_len, &profile_path, /* B */
1186 &acct_desc_len, &acct_desc, /* B */
1187 &workstations_len, &workstations, /* B */
1188 &unknown_str_len, &unknown_str, /* B */
1189 &munged_dial_len, &munged_dial, /* B */
1190 &user_rid, /* d */
1191 &group_rid, /* d */
1192 &lm_pw_len, &lm_pw_ptr, /* B */
1193 &nt_pw_len, &nt_pw_ptr, /* B */
1194 &acct_ctrl, /* w */
1195 &remove_me, /* d */
1196 &logon_divs, /* w */
1197 &hours_len, /* d */
1198 &hourslen, &hours, /* B */
1199 &bad_password_count, /* w */
1200 &logon_count, /* w */
1201 &unknown_6); /* d */
1202
1203 if (len == (uint32_t) -1) {
1204 ret = False;
1205 goto done;
1206 }
1207
1208 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1209 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1210 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1211
1212 /* Change from V0 is addition of bad_password_time field. */
1213 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1214 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1215 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1216
1217 pdb_set_username(sampass, username, PDB_SET);
1218 pdb_set_domain(sampass, domain, PDB_SET);
1219 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1220 pdb_set_fullname(sampass, fullname, PDB_SET);
1221
1222 if (homedir) {
1223 pdb_set_homedir(sampass, homedir, PDB_SET);
1224 }
1225 else {
1226 pdb_set_homedir(sampass,
1227 talloc_sub_basic(sampass, username, domain,
1228 lp_logon_home()),
1229 PDB_DEFAULT);
1230 }
1231
1232 if (dir_drive)
1233 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1234 else {
1235 pdb_set_dir_drive(sampass,
1236 talloc_sub_basic(sampass, username, domain,
1237 lp_logon_drive()),
1238 PDB_DEFAULT);
1239 }
1240
1241 if (logon_script)
1242 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1243 else {
1244 pdb_set_logon_script(sampass,
1245 talloc_sub_basic(sampass, username, domain,
1246 lp_logon_script()),
1247 PDB_DEFAULT);
1248 }
1249
1250 if (profile_path) {
1251 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1252 } else {
1253 pdb_set_profile_path(sampass,
1254 talloc_sub_basic(sampass, username, domain,
1255 lp_logon_path()),
1256 PDB_DEFAULT);
1257 }
1258
1259 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1260 pdb_set_workstations(sampass, workstations, PDB_SET);
1261 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1262
1263 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1264 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1265 ret = False;
1266 goto done;
1267 }
1268 }
1269
1270 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1271 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1272 ret = False;
1273 goto done;
1274 }
1275 }
1276
1277 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1278
1279 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1280 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1281 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1282 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1283 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1284 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1285 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1286 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1287 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1288
1289 done:
1290
1291 SAFE_FREE(username);
1292 SAFE_FREE(domain);
1293 SAFE_FREE(nt_username);
1294 SAFE_FREE(fullname);
1295 SAFE_FREE(homedir);
1296 SAFE_FREE(dir_drive);
1297 SAFE_FREE(logon_script);
1298 SAFE_FREE(profile_path);
1299 SAFE_FREE(acct_desc);
1300 SAFE_FREE(workstations);
1301 SAFE_FREE(munged_dial);
1302 SAFE_FREE(unknown_str);
1303 SAFE_FREE(lm_pw_ptr);
1304 SAFE_FREE(nt_pw_ptr);
1305 SAFE_FREE(hours);
1306
1307 return ret;
1308 }
1309
1310 static bool init_samu_from_buffer_v2(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1311 {
1312
1313 /* times are stored as 32bit integer
1314 take care on system with 64bit wide time_t
1315 --SSS */
1316 uint32_t logon_time,
1317 logoff_time,
1318 kickoff_time,
1319 bad_password_time,
1320 pass_last_set_time,
1321 pass_can_change_time,
1322 pass_must_change_time;
1323 char *username = NULL;
1324 char *domain = NULL;
1325 char *nt_username = NULL;
1326 char *dir_drive = NULL;
1327 char *unknown_str = NULL;
1328 char *munged_dial = NULL;
1329 char *fullname = NULL;
1330 char *homedir = NULL;
1331 char *logon_script = NULL;
1332 char *profile_path = NULL;
1333 char *acct_desc = NULL;
1334 char *workstations = NULL;
1335 uint32_t username_len, domain_len, nt_username_len,
1336 dir_drive_len, unknown_str_len, munged_dial_len,
1337 fullname_len, homedir_len, logon_script_len,
1338 profile_path_len, acct_desc_len, workstations_len;
1339
1340 uint32_t user_rid, group_rid, hours_len, unknown_6;
1341 uint16_t acct_ctrl, logon_divs;
1342 uint16_t bad_password_count, logon_count;
1343 uint8_t *hours = NULL;
1344 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1345 uint32_t len = 0;
1346 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1347 uint32_t pwHistLen = 0;
1348 bool ret = True;
1349 fstring tmp_string;
1350 bool expand_explicit = lp_passdb_expand_explicit();
1351
1352 if(sampass == NULL || buf == NULL) {
1353 DEBUG(0, ("init_samu_from_buffer_v2: NULL parameters found!\n"));
1354 return False;
1355 }
1356
1357 /* SAMU_BUFFER_FORMAT_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1358
1359 /* unpack the buffer into variables */
1360 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V2,
1361 &logon_time, /* d */
1362 &logoff_time, /* d */
1363 &kickoff_time, /* d */
1364 &bad_password_time, /* d */
1365 &pass_last_set_time, /* d */
1366 &pass_can_change_time, /* d */
1367 &pass_must_change_time, /* d */
1368 &username_len, &username, /* B */
1369 &domain_len, &domain, /* B */
1370 &nt_username_len, &nt_username, /* B */
1371 &fullname_len, &fullname, /* B */
1372 &homedir_len, &homedir, /* B */
1373 &dir_drive_len, &dir_drive, /* B */
1374 &logon_script_len, &logon_script, /* B */
1375 &profile_path_len, &profile_path, /* B */
1376 &acct_desc_len, &acct_desc, /* B */
1377 &workstations_len, &workstations, /* B */
1378 &unknown_str_len, &unknown_str, /* B */
1379 &munged_dial_len, &munged_dial, /* B */
1380 &user_rid, /* d */
1381 &group_rid, /* d */
1382 &lm_pw_len, &lm_pw_ptr, /* B */
1383 &nt_pw_len, &nt_pw_ptr, /* B */
1384 /* Change from V1 is addition of password history field. */
1385 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1386 &acct_ctrl, /* w */
1387 /* Also "remove_me" field was removed. */
1388 &logon_divs, /* w */
1389 &hours_len, /* d */
1390 &hourslen, &hours, /* B */
1391 &bad_password_count, /* w */
1392 &logon_count, /* w */
1393 &unknown_6); /* d */
1394
1395 if (len == (uint32_t) -1) {
1396 ret = False;
1397 goto done;
1398 }
1399
1400 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1401 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1402 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1403 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1404 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1405 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1406
1407 pdb_set_username(sampass, username, PDB_SET);
1408 pdb_set_domain(sampass, domain, PDB_SET);
1409 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1410 pdb_set_fullname(sampass, fullname, PDB_SET);
1411
1412 if (homedir) {
1413 fstrcpy( tmp_string, homedir );
1414 if (expand_explicit) {
1415 standard_sub_basic( username, domain, tmp_string,
1416 sizeof(tmp_string) );
1417 }
1418 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1419 }
1420 else {
1421 pdb_set_homedir(sampass,
1422 talloc_sub_basic(sampass, username, domain,
1423 lp_logon_home()),
1424 PDB_DEFAULT);
1425 }
1426
1427 if (dir_drive)
1428 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1429 else
1430 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1431
1432 if (logon_script) {
1433 fstrcpy( tmp_string, logon_script );
1434 if (expand_explicit) {
1435 standard_sub_basic( username, domain, tmp_string,
1436 sizeof(tmp_string) );
1437 }
1438 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1439 }
1440 else {
1441 pdb_set_logon_script(sampass,
1442 talloc_sub_basic(sampass, username, domain,
1443 lp_logon_script()),
1444 PDB_DEFAULT);
1445 }
1446
1447 if (profile_path) {
1448 fstrcpy( tmp_string, profile_path );
1449 if (expand_explicit) {
1450 standard_sub_basic( username, domain, tmp_string,
1451 sizeof(tmp_string) );
1452 }
1453 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1454 }
1455 else {
1456 pdb_set_profile_path(sampass,
1457 talloc_sub_basic(sampass, username, domain,
1458 lp_logon_path()),
1459 PDB_DEFAULT);
1460 }
1461
1462 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1463 pdb_set_workstations(sampass, workstations, PDB_SET);
1464 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1465
1466 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1467 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1468 ret = False;
1469 goto done;
1470 }
1471 }
1472
1473 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1474 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1475 ret = False;
1476 goto done;
1477 }
1478 }
1479
1480 /* Change from V1 is addition of password history field. */
1481 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1482 if (pwHistLen) {
1483 uint8_t *pw_hist = SMB_MALLOC_ARRAY(uint8_t, pwHistLen * PW_HISTORY_ENTRY_LEN);
1484 if (!pw_hist) {
1485 ret = False;
1486 goto done;
1487 }
1488 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1489 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1490 int i;
1491 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1492 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1493 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1494 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1495 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1496 PW_HISTORY_ENTRY_LEN);
1497 }
1498 }
1499 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1500 SAFE_FREE(pw_hist);
1501 ret = False;
1502 goto done;
1503 }
1504 SAFE_FREE(pw_hist);
1505 } else {
1506 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1507 }
1508
1509 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1510 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1511 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1512 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1513 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1514 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1515 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1516 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1517 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1518
1519 done:
1520
1521 SAFE_FREE(username);
1522 SAFE_FREE(domain);
1523 SAFE_FREE(nt_username);
1524 SAFE_FREE(fullname);
1525 SAFE_FREE(homedir);
1526 SAFE_FREE(dir_drive);
1527 SAFE_FREE(logon_script);
1528 SAFE_FREE(profile_path);
1529 SAFE_FREE(acct_desc);
1530 SAFE_FREE(workstations);
1531 SAFE_FREE(munged_dial);
1532 SAFE_FREE(unknown_str);
1533 SAFE_FREE(lm_pw_ptr);
1534 SAFE_FREE(nt_pw_ptr);
1535 SAFE_FREE(nt_pw_hist_ptr);
1536 SAFE_FREE(hours);
1537
1538 return ret;
1539 }
1540
1541 /*********************************************************************
1542 *********************************************************************/
1543
1544 static bool init_samu_from_buffer_v3(struct samu *sampass, uint8_t *buf, uint32_t buflen)
1545 {
1546
1547 /* times are stored as 32bit integer
1548 take care on system with 64bit wide time_t
1549 --SSS */
1550 uint32_t logon_time,
1551 logoff_time,
1552 kickoff_time,
1553 bad_password_time,
1554 pass_last_set_time,
1555 pass_can_change_time,
1556 pass_must_change_time;
1557 char *username = NULL;
1558 char *domain = NULL;
1559 char *nt_username = NULL;
1560 char *dir_drive = NULL;
1561 char *comment = NULL;
1562 char *munged_dial = NULL;
1563 char *fullname = NULL;
1564 char *homedir = NULL;
1565 char *logon_script = NULL;
1566 char *profile_path = NULL;
1567 char *acct_desc = NULL;
1568 char *workstations = NULL;
1569 uint32_t username_len, domain_len, nt_username_len,
1570 dir_drive_len, comment_len, munged_dial_len,
1571 fullname_len, homedir_len, logon_script_len,
1572 profile_path_len, acct_desc_len, workstations_len;
1573
1574 uint32_t user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
1575 uint16_t logon_divs;
1576 uint16_t bad_password_count, logon_count;
1577 uint8_t *hours = NULL;
1578 uint8_t *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1579 uint32_t len = 0;
1580 uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1581 uint32_t pwHistLen = 0;
1582 bool ret = True;
1583 fstring tmp_string;
1584 bool expand_explicit = lp_passdb_expand_explicit();
1585
1586 if(sampass == NULL || buf == NULL) {
1587 DEBUG(0, ("init_samu_from_buffer_v3: NULL parameters found!\n"));
1588 return False;
1589 }
1590
1591 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1592
1593 /* unpack the buffer into variables */
1594 len = tdb_unpack (buf, buflen, SAMU_BUFFER_FORMAT_V3,
1595 &logon_time, /* d */
1596 &logoff_time, /* d */
1597 &kickoff_time, /* d */
1598 &bad_password_time, /* d */
1599 &pass_last_set_time, /* d */
1600 &pass_can_change_time, /* d */
1601 &pass_must_change_time, /* d */
1602 &username_len, &username, /* B */
1603 &domain_len, &domain, /* B */
1604 &nt_username_len, &nt_username, /* B */
1605 &fullname_len, &fullname, /* B */
1606 &homedir_len, &homedir, /* B */
1607 &dir_drive_len, &dir_drive, /* B */
1608 &logon_script_len, &logon_script, /* B */
1609 &profile_path_len, &profile_path, /* B */
1610 &acct_desc_len, &acct_desc, /* B */
1611 &workstations_len, &workstations, /* B */
1612 &comment_len, &comment, /* B */
1613 &munged_dial_len, &munged_dial, /* B */
1614 &user_rid, /* d */
1615 &group_rid, /* d */
1616 &lm_pw_len, &lm_pw_ptr, /* B */
1617 &nt_pw_len, &nt_pw_ptr, /* B */
1618 /* Change from V1 is addition of password history field. */
1619 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1620 /* Change from V2 is the uint32_t acb_mask */
1621 &acct_ctrl, /* d */
1622 /* Also "remove_me" field was removed. */
1623 &logon_divs, /* w */
1624 &hours_len, /* d */
1625 &hourslen, &hours, /* B */
1626 &bad_password_count, /* w */
1627 &logon_count, /* w */
1628 &unknown_6); /* d */
1629
1630 if (len == (uint32_t) -1) {
1631 ret = False;
1632 goto done;
1633 }
1634
1635 pdb_set_logon_time(sampass, convert_uint32_t_to_time_t(logon_time), PDB_SET);
1636 pdb_set_logoff_time(sampass, convert_uint32_t_to_time_t(logoff_time), PDB_SET);
1637 pdb_set_kickoff_time(sampass, convert_uint32_t_to_time_t(kickoff_time), PDB_SET);
1638 pdb_set_bad_password_time(sampass, convert_uint32_t_to_time_t(bad_password_time), PDB_SET);
1639 pdb_set_pass_can_change_time(sampass, convert_uint32_t_to_time_t(pass_can_change_time), PDB_SET);
1640 pdb_set_pass_last_set_time(sampass, convert_uint32_t_to_time_t(pass_last_set_time), PDB_SET);
1641
1642 pdb_set_username(sampass, username, PDB_SET);
1643 pdb_set_domain(sampass, domain, PDB_SET);
1644 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1645 pdb_set_fullname(sampass, fullname, PDB_SET);
1646
1647 if (homedir) {
1648 fstrcpy( tmp_string, homedir );
1649 if (expand_explicit) {
1650 standard_sub_basic( username, domain, tmp_string,
1651 sizeof(tmp_string) );
1652 }
1653 pdb_set_homedir(sampass, tmp_string, PDB_SET);
1654 }
1655 else {
1656 pdb_set_homedir(sampass,
1657 talloc_sub_basic(sampass, username, domain,
1658 lp_logon_home()),
1659 PDB_DEFAULT);
1660 }
1661
1662 if (dir_drive)
1663 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1664 else
1665 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1666
1667 if (logon_script) {
1668 fstrcpy( tmp_string, logon_script );
1669 if (expand_explicit) {
1670 standard_sub_basic( username, domain, tmp_string,
1671 sizeof(tmp_string) );
1672 }
1673 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
1674 }
1675 else {
1676 pdb_set_logon_script(sampass,
1677 talloc_sub_basic(sampass, username, domain,
1678 lp_logon_script()),
1679 PDB_DEFAULT);
1680 }
1681
1682 if (profile_path) {
1683 fstrcpy( tmp_string, profile_path );
1684 if (expand_explicit) {
1685 standard_sub_basic( username, domain, tmp_string,
1686 sizeof(tmp_string) );
1687 }
1688 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
1689 }
1690 else {
1691 pdb_set_profile_path(sampass,
1692 talloc_sub_basic(sampass, username, domain, lp_logon_path()),
1693 PDB_DEFAULT);
1694 }
1695
1696 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1697 pdb_set_comment(sampass, comment, PDB_SET);
1698 pdb_set_workstations(sampass, workstations, PDB_SET);
1699 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1700
1701 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1702 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1703 ret = False;
1704 goto done;
1705 }
1706 }
1707
1708 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1709 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1710 ret = False;
1711 goto done;
1712 }
1713 }
1714
1715 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1716 if (pwHistLen) {
1717 uint8_t *pw_hist = (uint8_t *)SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1718 if (!pw_hist) {
1719 ret = False;
1720 goto done;
1721 }
1722 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1723 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1724 int i;
1725 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1726 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1727 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1728 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1729 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1730 PW_HISTORY_ENTRY_LEN);
1731 }
1732 }
1733 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1734 SAFE_FREE(pw_hist);
1735 ret = False;
1736 goto done;
1737 }
1738 SAFE_FREE(pw_hist);
1739 } else {
1740 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1741 }
1742
1743 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1744 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1745 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1746 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1747 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1748 /* Change from V2 is the uint32_t acct_ctrl */
1749 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1750 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1751 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1752
1753 done:
1754
1755 SAFE_FREE(username);
1756 SAFE_FREE(domain);
1757 SAFE_FREE(nt_username);
1758 SAFE_FREE(fullname);
1759 SAFE_FREE(homedir);
1760 SAFE_FREE(dir_drive);
1761 SAFE_FREE(logon_script);
1762 SAFE_FREE(profile_path);
1763 SAFE_FREE(acct_desc);
1764 SAFE_FREE(workstations);
1765 SAFE_FREE(munged_dial);
1766 SAFE_FREE(comment);
1767 SAFE_FREE(lm_pw_ptr);
1768 SAFE_FREE(nt_pw_ptr);
1769 SAFE_FREE(nt_pw_hist_ptr);
1770 SAFE_FREE(hours);
1771
1772 return ret;
1773 }
1774
1775 /*********************************************************************
1776 *********************************************************************/
1777
1778 static uint32_t init_buffer_from_samu_v3 (uint8_t **buf, struct samu *sampass, bool size_only)
1779 {
1780 size_t len, buflen;
1781
1782 /* times are stored as 32bit integer
1783 take care on system with 64bit wide time_t
1784 --SSS */
1785 uint32_t logon_time,
1786 logoff_time,
1787 kickoff_time,
1788 bad_password_time,
1789 pass_last_set_time,
1790 pass_can_change_time,
1791 pass_must_change_time;
1792
1793 uint32_t user_rid, group_rid;
1794
1795 const char *username;
1796 const char *domain;
1797 const char *nt_username;
1798 const char *dir_drive;
1799 const char *comment;
1800 const char *munged_dial;
1801 const char *fullname;
1802 const char *homedir;
1803 const char *logon_script;
1804 const char *profile_path;
1805 const char *acct_desc;
1806 const char *workstations;
1807 uint32_t username_len, domain_len, nt_username_len,
1808 dir_drive_len, comment_len, munged_dial_len,
1809 fullname_len, homedir_len, logon_script_len,
1810 profile_path_len, acct_desc_len, workstations_len;
1811
1812 const uint8_t *lm_pw;
1813 const uint8_t *nt_pw;
1814 const uint8_t *nt_pw_hist;
1815 uint32_t lm_pw_len = 16;
1816 uint32_t nt_pw_len = 16;
1817 uint32_t nt_pw_hist_len;
1818 uint32_t pwHistLen = 0;
1819
1820 *buf = NULL;
1821 buflen = 0;
1822
1823 logon_time = convert_time_t_to_uint32_t(pdb_get_logon_time(sampass));
1824 logoff_time = convert_time_t_to_uint32_t(pdb_get_logoff_time(sampass));
1825 kickoff_time = convert_time_t_to_uint32_t(pdb_get_kickoff_time(sampass));
1826 bad_password_time = convert_time_t_to_uint32_t(pdb_get_bad_password_time(sampass));
1827 pass_can_change_time = convert_time_t_to_uint32_t(pdb_get_pass_can_change_time_noncalc(sampass));
1828 pass_must_change_time = convert_time_t_to_uint32_t(pdb_get_pass_must_change_time(sampass));
1829 pass_last_set_time = convert_time_t_to_uint32_t(pdb_get_pass_last_set_time(sampass));
1830
1831 user_rid = pdb_get_user_rid(sampass);
1832 group_rid = pdb_get_group_rid(sampass);
1833
1834 username = pdb_get_username(sampass);
1835 if (username) {
1836 username_len = strlen(username) +1;
1837 } else {
1838 username_len = 0;
1839 }
1840
1841 domain = pdb_get_domain(sampass);
1842 if (domain) {
1843 domain_len = strlen(domain) +1;
1844 } else {
1845 domain_len = 0;
1846 }
1847
1848 nt_username = pdb_get_nt_username(sampass);
1849 if (nt_username) {
1850 nt_username_len = strlen(nt_username) +1;
1851 } else {
1852 nt_username_len = 0;
1853 }
1854
1855 fullname = pdb_get_fullname(sampass);
1856 if (fullname) {
1857 fullname_len = strlen(fullname) +1;
1858 } else {
1859 fullname_len = 0;
1860 }
1861
1862 /*
1863 * Only updates fields which have been set (not defaults from smb.conf)
1864 */
1865
1866 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1867 dir_drive = pdb_get_dir_drive(sampass);
1868 } else {
1869 dir_drive = NULL;
1870 }
1871 if (dir_drive) {
1872 dir_drive_len = strlen(dir_drive) +1;
1873 } else {
1874 dir_drive_len = 0;
1875 }
1876
1877 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1878 homedir = pdb_get_homedir(sampass);
1879 } else {
1880 homedir = NULL;
1881 }
1882 if (homedir) {
1883 homedir_len = strlen(homedir) +1;
1884 } else {
1885 homedir_len = 0;
1886 }
1887
1888 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1889 logon_script = pdb_get_logon_script(sampass);
1890 } else {
1891 logon_script = NULL;
1892 }
1893 if (logon_script) {
1894 logon_script_len = strlen(logon_script) +1;
1895 } else {
1896 logon_script_len = 0;
1897 }
1898
1899 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1900 profile_path = pdb_get_profile_path(sampass);
1901 } else {
1902 profile_path = NULL;
1903 }
1904 if (profile_path) {
1905 profile_path_len = strlen(profile_path) +1;
1906 } else {
1907 profile_path_len = 0;
1908 }
1909
1910 lm_pw = pdb_get_lanman_passwd(sampass);
1911 if (!lm_pw) {
1912 lm_pw_len = 0;
1913 }
1914
1915 nt_pw = pdb_get_nt_passwd(sampass);
1916 if (!nt_pw) {
1917 nt_pw_len = 0;
1918 }
1919
1920 pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1921 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
1922 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1923 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1924 } else {
1925 nt_pw_hist_len = 0;
1926 }
1927
1928 acct_desc = pdb_get_acct_desc(sampass);
1929 if (acct_desc) {
1930 acct_desc_len = strlen(acct_desc) +1;
1931 } else {
1932 acct_desc_len = 0;
1933 }
1934
1935 workstations = pdb_get_workstations(sampass);
1936 if (workstations) {
1937 workstations_len = strlen(workstations) +1;
1938 } else {
1939 workstations_len = 0;
1940 }
1941
1942 comment = pdb_get_comment(sampass);
1943 if (comment) {
1944 comment_len = strlen(comment) +1;
1945 } else {
1946 comment_len = 0;
1947 }
1948
1949 munged_dial = pdb_get_munged_dial(sampass);
1950 if (munged_dial) {
1951 munged_dial_len = strlen(munged_dial) +1;
1952 } else {
1953 munged_dial_len = 0;
1954 }
1955
1956 /* SAMU_BUFFER_FORMAT_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1957
1958 /* one time to get the size needed */
1959 len = tdb_pack(NULL, 0, SAMU_BUFFER_FORMAT_V3,
1960 logon_time, /* d */
1961 logoff_time, /* d */
1962 kickoff_time, /* d */
1963 bad_password_time, /* d */
1964 pass_last_set_time, /* d */
1965 pass_can_change_time, /* d */
1966 pass_must_change_time, /* d */
1967 username_len, username, /* B */
1968 domain_len, domain, /* B */
1969 nt_username_len, nt_username, /* B */
1970 fullname_len, fullname, /* B */
1971 homedir_len, homedir, /* B */
1972 dir_drive_len, dir_drive, /* B */
1973 logon_script_len, logon_script, /* B */
1974 profile_path_len, profile_path, /* B */
1975 acct_desc_len, acct_desc, /* B */
1976 workstations_len, workstations, /* B */
1977 comment_len, comment, /* B */
1978 munged_dial_len, munged_dial, /* B */
1979 user_rid, /* d */
1980 group_rid, /* d */
1981 lm_pw_len, lm_pw, /* B */
1982 nt_pw_len, nt_pw, /* B */
1983 nt_pw_hist_len, nt_pw_hist, /* B */
1984 pdb_get_acct_ctrl(sampass), /* d */
1985 pdb_get_logon_divs(sampass), /* w */
1986 pdb_get_hours_len(sampass), /* d */
1987 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1988 pdb_get_bad_password_count(sampass), /* w */
1989 pdb_get_logon_count(sampass), /* w */
1990 pdb_get_unknown_6(sampass)); /* d */
1991
1992 if (size_only) {
1993 return buflen;
1994 }
1995
1996 /* malloc the space needed */
1997 if ( (*buf=(uint8_t*)SMB_MALLOC(len)) == NULL) {
1998 DEBUG(0,("init_buffer_from_samu_v3: Unable to malloc() memory for buffer!\n"));
1999 return (-1);
2000 }
2001
2002 /* now for the real call to tdb_pack() */
2003 buflen = tdb_pack(*buf, len, SAMU_BUFFER_FORMAT_V3,
2004 logon_time, /* d */
2005 logoff_time, /* d */
2006 kickoff_time, /* d */
2007 bad_password_time, /* d */
2008 pass_last_set_time, /* d */
2009 pass_can_change_time, /* d */
2010 pass_must_change_time, /* d */
2011 username_len, username, /* B */
2012 domain_len, domain, /* B */
2013 nt_username_len, nt_username, /* B */
2014 fullname_len, fullname, /* B */
2015 homedir_len, homedir, /* B */
2016 dir_drive_len, dir_drive, /* B */
2017 logon_script_len, logon_script, /* B */
2018 profile_path_len, profile_path, /* B */
2019 acct_desc_len, acct_desc, /* B */
2020 workstations_len, workstations, /* B */
2021 comment_len, comment, /* B */
2022 munged_dial_len, munged_dial, /* B */
2023 user_rid, /* d */
2024 group_rid, /* d */
2025 lm_pw_len, lm_pw, /* B */
2026 nt_pw_len, nt_pw, /* B */
2027 nt_pw_hist_len, nt_pw_hist, /* B */
2028 pdb_get_acct_ctrl(sampass), /* d */
2029 pdb_get_logon_divs(sampass), /* w */
2030 pdb_get_hours_len(sampass), /* d */
2031 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2032 pdb_get_bad_password_count(sampass), /* w */
2033 pdb_get_logon_count(sampass), /* w */
2034 pdb_get_unknown_6(sampass)); /* d */
2035
2036 /* check to make sure we got it correct */
2037 if (buflen != len) {
2038 DEBUG(0, ("init_buffer_from_samu_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2039 (unsigned long)buflen, (unsigned long)len));
2040 /* error */
2041 SAFE_FREE (*buf);
2042 return (-1);
2043 }
2044
2045 return (buflen);
2046 }
2047
2048 static bool init_samu_from_buffer_v4(struct samu *sampass, uint8_t *buf, uint32_t buflen)
2049 {
2050 /* nothing changed between V3 and V4 */
2051 return init_samu_from_buffer_v3(sampass, buf, buflen);
2052 }
2053
2054 static uint32_t init_buffer_from_samu_v4(uint8_t **buf, struct samu *sampass, bool size_only)
2055 {
2056 /* nothing changed between V3 and V4 */
2057 return init_buffer_from_samu_v3(buf, sampass, size_only);
2058 }
2059
2060 /**********************************************************************
2061 Intialize a struct samu struct from a BYTE buffer of size len
2062 *********************************************************************/
2063
2064 bool init_samu_from_buffer(struct samu *sampass, uint32_t level,
2065 uint8_t *buf, uint32_t buflen)
2066 {
2067 switch (level) {
2068 case SAMU_BUFFER_V0:
2069 return init_samu_from_buffer_v0(sampass, buf, buflen);
2070 case SAMU_BUFFER_V1:
2071 return init_samu_from_buffer_v1(sampass, buf, buflen);
2072 case SAMU_BUFFER_V2:
2073 return init_samu_from_buffer_v2(sampass, buf, buflen);
2074 case SAMU_BUFFER_V3:
2075 return init_samu_from_buffer_v3(sampass, buf, buflen);
2076 case SAMU_BUFFER_V4:
2077 return init_samu_from_buffer_v4(sampass, buf, buflen);
2078 }
2079
2080 return false;
2081 }
2082
2083 /**********************************************************************
2084 Intialize a BYTE buffer from a struct samu struct
2085 *********************************************************************/
2086
2087 uint32_t init_buffer_from_samu (uint8_t **buf, struct samu *sampass, bool size_only)
2088 {
2089 return init_buffer_from_samu_v4(buf, sampass, size_only);
2090 }
2091
2092 /*********************************************************************
2093 *********************************************************************/
2094
2095 bool pdb_copy_sam_account(struct samu *dst, struct samu *src )
2096 {
2097 uint8_t *buf = NULL;
2098 int len;
2099
2100 len = init_buffer_from_samu(&buf, src, False);
2101 if (len == -1 || !buf) {
2102 SAFE_FREE(buf);
2103 return False;
2104 }
2105
2106 if (!init_samu_from_buffer( dst, SAMU_BUFFER_LATEST, buf, len )) {
2107 free(buf);
2108 return False;
2109 }
2110
2111 dst->methods = src->methods;
2112
2113 if ( src->unix_pw ) {
2114 dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
2115 if (!dst->unix_pw) {
2116 free(buf);
2117 return False;
2118 }
2119 }
2120
2121 if (src->group_sid) {
2122 pdb_set_group_sid(dst, src->group_sid, PDB_SET);
2123 }
2124
2125 free(buf);
2126 return True;
2127 }
2128
2129 /*********************************************************************
2130 Update the bad password count checking the PDB_POLICY_RESET_COUNT_TIME
2131 *********************************************************************/
2132
2133 bool pdb_update_bad_password_count(struct samu *sampass, bool *updated)
2134 {
2135 time_t LastBadPassword;
2136 uint16_t BadPasswordCount;
2137 uint32_t resettime;
2138 bool res;
2139
2140 BadPasswordCount = pdb_get_bad_password_count(sampass);
2141 if (!BadPasswordCount) {
2142 DEBUG(9, ("No bad password attempts.\n"));
2143 return True;
2144 }
2145
2146 become_root();
2147 res = pdb_get_account_policy(PDB_POLICY_RESET_COUNT_TIME, &resettime);
2148 unbecome_root();
2149
2150 if (!res) {
2151 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2152 return False;
2153 }
2154
2155 /* First, check if there is a reset time to compare */
2156 if ((resettime == (uint32_t) -1) || (resettime == 0)) {
2157 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2158 return True;
2159 }
2160
2161 LastBadPassword = pdb_get_bad_password_time(sampass);
2162 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2163 (uint32_t) LastBadPassword, resettime, (uint32_t)time(NULL)));
2164 if (time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(resettime)*60)){
2165 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2166 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2167 if (updated) {
2168 *updated = True;
2169 }
2170 }
2171
2172 return True;
2173 }
2174
2175 /*********************************************************************
2176 Update the ACB_AUTOLOCK flag checking the PDB_POLICY_LOCK_ACCOUNT_DURATION
2177 *********************************************************************/
2178
2179 bool pdb_update_autolock_flag(struct samu *sampass, bool *updated)
2180 {
2181 uint32_t duration;
2182 time_t LastBadPassword;
2183 bool res;
2184
2185 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2186 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2187 pdb_get_username(sampass)));
2188 return True;
2189 }
2190
2191 become_root();
2192 res = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION, &duration);
2193 unbecome_root();
2194
2195 if (!res) {
2196 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2197 return False;
2198 }
2199
2200 /* First, check if there is a duration to compare */
2201 if ((duration == (uint32_t) -1) || (duration == 0)) {
2202 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2203 return True;
2204 }
2205
2206 LastBadPassword = pdb_get_bad_password_time(sampass);
2207 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2208 pdb_get_username(sampass), (uint32_t)LastBadPassword, duration*60, (uint32_t)time(NULL)));
2209
2210 if (LastBadPassword == (time_t)0) {
2211 DEBUG(1,("pdb_update_autolock_flag: Account %s "
2212 "administratively locked out with no bad password "
2213 "time. Leaving locked out.\n",
2214 pdb_get_username(sampass) ));
2215 return True;
2216 }
2217
2218 if ((time(NULL) > (LastBadPassword + convert_uint32_t_to_time_t(duration) * 60))) {
2219 pdb_set_acct_ctrl(sampass,
2220 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2221 PDB_CHANGED);
2222 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2223 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2224 if (updated) {
2225 *updated = True;
2226 }
2227 }
2228
2229 return True;
2230 }
2231
2232 /*********************************************************************
2233 Increment the bad_password_count
2234 *********************************************************************/
2235
2236 bool pdb_increment_bad_password_count(struct samu *sampass)
2237 {
2238 uint32_t account_policy_lockout;
2239 bool autolock_updated = False, badpw_updated = False;
2240 bool ret;
2241
2242 /* Retrieve the account lockout policy */
2243 become_root();
2244 ret = pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
2245 unbecome_root();
2246 if ( !ret ) {
2247 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2248 return False;
2249 }
2250
2251 /* If there is no policy, we don't need to continue checking */
2252 if (!account_policy_lockout) {
2253 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2254 return True;
2255 }
2256
2257 /* Check if the autolock needs to be cleared */
2258 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2259 return False;
2260
2261 /* Check if the badpw count needs to be reset */
2262 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2263 return False;
2264
2265 /*
2266 Ok, now we can assume that any resetting that needs to be
2267 done has been done, and just get on with incrementing
2268 and autolocking if necessary
2269 */
2270
2271 pdb_set_bad_password_count(sampass,
2272 pdb_get_bad_password_count(sampass)+1,
2273 PDB_CHANGED);
2274 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2275
2276
2277 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2278 return True;
2279
2280 if (!pdb_set_acct_ctrl(sampass,
2281 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2282 PDB_CHANGED)) {
2283 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2284 return False;
2285 }
2286
2287 return True;
2288 }
2289
2290 bool is_dc_trusted_domain_situation(const char *domain_name)
2291 {
2292 return IS_DC && !strequal(domain_name, lp_workgroup());
2293 }
2294
2295 /*******************************************************************
2296 Wrapper around retrieving the clear text trust account password.
2297 appropriate account name is stored in account_name.
2298 Caller must free password, but not account_name.
2299 *******************************************************************/
2300
2301 bool get_trust_pw_clear(const char *domain, char **ret_pwd,
2302 const char **account_name,
2303 enum netr_SchannelType *channel)
2304 {
2305 char *pwd;
2306 time_t last_set_time;
2307
2308 /* if we are a DC and this is not our domain, then lookup an account
2309 * for the domain trust */
2310
2311 if (is_dc_trusted_domain_situation(domain)) {
2312 if (!lp_allow_trusted_domains()) {
2313 return false;
2314 }
2315
2316 if (!pdb_get_trusteddom_pw(domain, ret_pwd, NULL,
2317 &last_set_time))
2318 {
2319 DEBUG(0, ("get_trust_pw: could not fetch trust "
2320 "account password for trusted domain %s\n",
2321 domain));
2322 return false;
2323 }
2324
2325 if (channel != NULL) {
2326 *channel = SEC_CHAN_DOMAIN;
2327 }
2328
2329 if (account_name != NULL) {
2330 *account_name = lp_workgroup();
2331 }
2332
2333 return true;
2334 }
2335
2336 /*
2337 * Since we can only be member of one single domain, we are now
2338 * in a member situation:
2339 *
2340 * - Either we are a DC (selfjoined) and the domain is our
2341 * own domain.
2342 * - Or we are on a member and the domain is our own or some
2343 * other (potentially trusted) domain.
2344 *
2345 * In both cases, we can only get the machine account password
2346 * for our own domain to connect to our own dc. (For a member,
2347 * request to trusted domains are performed through our dc.)
2348 *
2349 * So we simply use our own domain name to retrieve the
2350 * machine account passowrd and ignore the request domain here.
2351 */
2352
2353 pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
2354
2355 if (pwd != NULL) {
2356 *ret_pwd = pwd;
2357 if (account_name != NULL) {
2358 *account_name = lp_netbios_name();
2359 }
2360
2361 return true;
2362 }
2363
2364 DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
2365 "account password for domain %s\n", domain));
2366 return false;
2367 }
2368
2369 /*******************************************************************
2370 Wrapper around retrieving the trust account password.
2371 appropriate account name is stored in account_name.
2372 *******************************************************************/
2373
2374 bool get_trust_pw_hash(const char *domain, uint8_t ret_pwd[16],
2375 const char **account_name,
2376 enum netr_SchannelType *channel)
2377 {
2378 char *pwd = NULL;
2379 time_t last_set_time;
2380
2381 if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
2382 E_md4hash(pwd, ret_pwd);
2383 SAFE_FREE(pwd);
2384 return true;
2385 } else if (is_dc_trusted_domain_situation(domain)) {
2386 return false;
2387 }
2388
2389 /* as a fallback, try to get the hashed pwd directly from the tdb... */
2390
2391 if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
2392 &last_set_time,
2393 channel))
2394 {
2395 if (account_name != NULL) {
2396 *account_name = lp_netbios_name();
2397 }
2398
2399 return true;
2400 }
2401
2402 DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
2403 "password for domain %s\n", domain));
2404 return False;
2405 }
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