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r1643: syncing all changes from 3.0 and hopefully get 3.0.6rc2 out tomorrow
[Samba.git] / source / passdb / passdb.c
blob2f9742e17da90e9c7021db606f9a2f6770473d7d
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 2000-2001
7 Copyright (C) Andrew Bartlett 2001-2002
8 Copyright (C) Simo Sorce 2003
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25 #include "includes.h"
26
27 #undef DBGC_CLASS
28 #define DBGC_CLASS DBGC_PASSDB
29
30 /******************************************************************
31 get the default domain/netbios name to be used when
32 testing authentication. For example, if you connect
33 to a Windows member server using a bogus domain name, the
34 Windows box will map the BOGUS\user to DOMAIN\user. A
35 standalone box will map to WKS\user.
36 ******************************************************************/
37
38 const char *get_default_sam_name(void)
39 {
40 /* standalone servers can only use the local netbios name */
41 if ( lp_server_role() == ROLE_STANDALONE )
42 return global_myname();
43
44 /* Windows domain members default to the DOMAIN
45 name when not specified */
46 return lp_workgroup();
47 }
48
49 /************************************************************
50 Fill the SAM_ACCOUNT with default values.
51 ***********************************************************/
52
53 void pdb_fill_default_sam(SAM_ACCOUNT *user)
54 {
55 ZERO_STRUCT(user->private); /* Don't touch the talloc context */
56
57 /* no initial methods */
58 user->methods = NULL;
59
60 /* Don't change these timestamp settings without a good reason.
61 They are important for NT member server compatibility. */
62
63 user->private.logon_time = (time_t)0;
64 user->private.pass_last_set_time = (time_t)0;
65 user->private.pass_can_change_time = (time_t)0;
66 user->private.logoff_time =
67 user->private.kickoff_time =
68 user->private.pass_must_change_time = get_time_t_max();
69 user->private.fields_present = 0x00ffffff;
70 user->private.logon_divs = 168; /* hours per week */
71 user->private.hours_len = 21; /* 21 times 8 bits = 168 */
72 memset(user->private.hours, 0xff, user->private.hours_len); /* available at all hours */
73 user->private.bad_password_count = 0;
74 user->private.logon_count = 0;
75 user->private.unknown_6 = 0x000004ec; /* don't know */
76
77 /* Some parts of samba strlen their pdb_get...() returns,
78 so this keeps the interface unchanged for now. */
79
80 user->private.username = "";
81 user->private.domain = "";
82 user->private.nt_username = "";
83 user->private.full_name = "";
84 user->private.home_dir = "";
85 user->private.logon_script = "";
86 user->private.profile_path = "";
87 user->private.acct_desc = "";
88 user->private.workstations = "";
89 user->private.unknown_str = "";
90 user->private.munged_dial = "";
91
92 user->private.plaintext_pw = NULL;
93
94 /*
95 Unless we know otherwise have a Account Control Bit
96 value of 'normal user'. This helps User Manager, which
97 asks for a filtered list of users.
98 */
99
100 user->private.acct_ctrl = ACB_NORMAL;
101 }
102
103 static void destroy_pdb_talloc(SAM_ACCOUNT **user)
104 {
105 if (*user) {
106 data_blob_clear_free(&((*user)->private.lm_pw));
107 data_blob_clear_free(&((*user)->private.nt_pw));
108
109 if((*user)->private.plaintext_pw!=NULL)
110 memset((*user)->private.plaintext_pw,'\0',strlen((*user)->private.plaintext_pw));
111 talloc_destroy((*user)->mem_ctx);
112 *user = NULL;
113 }
114 }
115
116
117 /**********************************************************************
118 Allocates memory and initialises a struct sam_passwd on supplied mem_ctx.
119 ***********************************************************************/
120
121 NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
122 {
123 if (*user != NULL) {
124 DEBUG(0,("pdb_init_sam_talloc: SAM_ACCOUNT was non NULL\n"));
125 #if 0
126 smb_panic("non-NULL pointer passed to pdb_init_sam\n");
127 #endif
128 return NT_STATUS_UNSUCCESSFUL;
129 }
130
131 if (!mem_ctx) {
132 DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
133 return NT_STATUS_UNSUCCESSFUL;
134 }
135
136 *user=(SAM_ACCOUNT *)talloc(mem_ctx, sizeof(SAM_ACCOUNT));
137
138 if (*user==NULL) {
139 DEBUG(0,("pdb_init_sam_talloc: error while allocating memory\n"));
140 return NT_STATUS_NO_MEMORY;
141 }
142
143 (*user)->mem_ctx = mem_ctx;
144
145 (*user)->free_fn = NULL;
146
147 pdb_fill_default_sam(*user);
148
149 return NT_STATUS_OK;
150 }
151
152
153 /*************************************************************
154 Allocates memory and initialises a struct sam_passwd.
155 ************************************************************/
156
157 NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
158 {
159 TALLOC_CTX *mem_ctx;
160 NTSTATUS nt_status;
161
162 mem_ctx = talloc_init("passdb internal SAM_ACCOUNT allocation");
163
164 if (!mem_ctx) {
165 DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
166 return NT_STATUS_NO_MEMORY;
167 }
168
169 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
170 talloc_destroy(mem_ctx);
171 return nt_status;
172 }
173
174 (*user)->free_fn = destroy_pdb_talloc;
175
176 return NT_STATUS_OK;
177 }
178
179 /**************************************************************************
180 * This function will take care of all the steps needed to correctly
181 * allocate and set the user SID, please do use this function to create new
182 * users, messing with SIDs is not good.
183 *
184 * account_data must be provided initialized, pwd may be null.
185 * SSS
186 ***************************************************************************/
187
188 static NTSTATUS pdb_set_sam_sids(SAM_ACCOUNT *account_data, const struct passwd *pwd)
189 {
190 const char *guest_account = lp_guestaccount();
191 GROUP_MAP map;
192 BOOL ret;
193
194 if (!account_data || !pwd) {
195 return NT_STATUS_INVALID_PARAMETER;
196 }
197
198 /* this is a hack this thing should not be set
199 this way --SSS */
200 if (!(guest_account && *guest_account)) {
201 DEBUG(1, ("NULL guest account!?!?\n"));
202 return NT_STATUS_UNSUCCESSFUL;
203 } else {
204 /* Ensure this *must* be set right */
205 if (strcmp(pwd->pw_name, guest_account) == 0) {
206 if (!pdb_set_user_sid_from_rid(account_data, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
207 return NT_STATUS_UNSUCCESSFUL;
208 }
209 if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
210 return NT_STATUS_UNSUCCESSFUL;
211 }
212 return NT_STATUS_OK;
213 }
214 }
215
216 if (!pdb_set_user_sid_from_rid(account_data, fallback_pdb_uid_to_user_rid(pwd->pw_uid), PDB_SET)) {
217 DEBUG(0,("Can't set User SID from RID!\n"));
218 return NT_STATUS_INVALID_PARAMETER;
219 }
220
221 /* call the mapping code here */
222 become_root();
223 ret = pdb_getgrgid(&map, pwd->pw_gid);
224 unbecome_root();
225
226 if( ret ) {
227 if (!pdb_set_group_sid(account_data, &map.sid, PDB_SET)){
228 DEBUG(0,("Can't set Group SID!\n"));
229 return NT_STATUS_INVALID_PARAMETER;
230 }
231 }
232 else {
233 if (!pdb_set_group_sid_from_rid(account_data, pdb_gid_to_group_rid(pwd->pw_gid), PDB_SET)) {
234 DEBUG(0,("Can't set Group SID\n"));
235 return NT_STATUS_INVALID_PARAMETER;
236 }
237 }
238
239 return NT_STATUS_OK;
240 }
241
242 /*************************************************************
243 Initialises a struct sam_passwd with sane values.
244 ************************************************************/
245
246 NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
247 {
248 NTSTATUS ret;
249
250 if (!pwd) {
251 return NT_STATUS_UNSUCCESSFUL;
252 }
253
254 pdb_fill_default_sam(sam_account);
255
256 pdb_set_username(sam_account, pwd->pw_name, PDB_SET);
257 pdb_set_fullname(sam_account, pwd->pw_gecos, PDB_SET);
258
259 pdb_set_unix_homedir(sam_account, pwd->pw_dir, PDB_SET);
260
261 pdb_set_domain (sam_account, get_global_sam_name(), PDB_DEFAULT);
262
263 /* When we get a proper uid -> SID and SID -> uid allocation
264 mechinism, we should call it here.
265
266 We can't just set this to 0 or allow it only to be filled
267 in when added to the backend, because the user's SID
268 may already be in security descriptors etc.
269
270 -- abartlet 11-May-02
271 */
272
273 ret = pdb_set_sam_sids(sam_account, pwd);
274 if (!NT_STATUS_IS_OK(ret)) return ret;
275
276 /* check if this is a user account or a machine account */
277 if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
278 {
279 pdb_set_profile_path(sam_account,
280 talloc_sub_specified((sam_account)->mem_ctx,
281 lp_logon_path(),
282 pwd->pw_name, global_myname(),
283 pwd->pw_uid, pwd->pw_gid),
284 PDB_DEFAULT);
285
286 pdb_set_homedir(sam_account,
287 talloc_sub_specified((sam_account)->mem_ctx,
288 lp_logon_home(),
289 pwd->pw_name, global_myname(),
290 pwd->pw_uid, pwd->pw_gid),
291 PDB_DEFAULT);
292
293 pdb_set_dir_drive(sam_account,
294 talloc_sub_specified((sam_account)->mem_ctx,
295 lp_logon_drive(),
296 pwd->pw_name, global_myname(),
297 pwd->pw_uid, pwd->pw_gid),
298 PDB_DEFAULT);
299
300 pdb_set_logon_script(sam_account,
301 talloc_sub_specified((sam_account)->mem_ctx,
302 lp_logon_script(),
303 pwd->pw_name, global_myname(),
304 pwd->pw_uid, pwd->pw_gid),
305 PDB_DEFAULT);
306 if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT)) {
307 DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", pwd->pw_name));
308 return NT_STATUS_UNSUCCESSFUL;
309 }
310 } else {
311 if (!pdb_set_acct_ctrl(sam_account, ACB_WSTRUST, PDB_DEFAULT)) {
312 DEBUG(1, ("Failed to set 'trusted workstation account' flags for user %s.\n", pwd->pw_name));
313 return NT_STATUS_UNSUCCESSFUL;
314 }
315 }
316 return NT_STATUS_OK;
317 }
318
319
320 /*************************************************************
321 Initialises a struct sam_passwd with sane values.
322 ************************************************************/
323
324 NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
325 {
326 NTSTATUS nt_status;
327
328 if (!pwd) {
329 new_sam_acct = NULL;
330 return NT_STATUS_INVALID_PARAMETER;
331 }
332
333 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
334 new_sam_acct = NULL;
335 return nt_status;
336 }
337
338 if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
339 pdb_free_sam(new_sam_acct);
340 new_sam_acct = NULL;
341 return nt_status;
342 }
343
344 return NT_STATUS_OK;
345 }
346
347
348 /*************************************************************
349 Initialises a SAM_ACCOUNT ready to add a new account, based
350 on the UNIX user. Pass in a RID if you have one
351 ************************************************************/
352
353 NTSTATUS pdb_init_sam_new(SAM_ACCOUNT **new_sam_acct, const char *username,
354 uint32 rid)
355 {
356 NTSTATUS nt_status = NT_STATUS_NO_MEMORY;
357 struct passwd *pwd;
358 BOOL ret;
359
360 pwd = Get_Pwnam(username);
361
362 if (!pwd)
363 return NT_STATUS_NO_SUCH_USER;
364
365 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(new_sam_acct, pwd))) {
366 *new_sam_acct = NULL;
367 return nt_status;
368 }
369
370 /* see if we need to generate a new rid using the 2.2 algorithm */
371 if ( rid == 0 && lp_enable_rid_algorithm() ) {
372 DEBUG(10,("pdb_init_sam_new: no RID specified. Generating one via old algorithm\n"));
373 rid = fallback_pdb_uid_to_user_rid(pwd->pw_uid);
374 }
375
376 /* set the new SID */
377
378 ret = pdb_set_user_sid_from_rid( *new_sam_acct, rid, PDB_SET );
379
380 return (ret ? NT_STATUS_OK : NT_STATUS_NO_SUCH_USER);
381 }
382
383
384 /**
385 * Free the contets of the SAM_ACCOUNT, but not the structure.
386 *
387 * Also wipes the LM and NT hashes and plaintext password from
388 * memory.
389 *
390 * @param user SAM_ACCOUNT to free members of.
391 **/
392
393 static void pdb_free_sam_contents(SAM_ACCOUNT *user)
394 {
395
396 /* Kill off sensitive data. Free()ed by the
397 talloc mechinism */
398
399 data_blob_clear_free(&(user->private.lm_pw));
400 data_blob_clear_free(&(user->private.nt_pw));
401 if (user->private.plaintext_pw!=NULL)
402 memset(user->private.plaintext_pw,'\0',strlen(user->private.plaintext_pw));
403
404 if (user->private.backend_private_data && user->private.backend_private_data_free_fn) {
405 user->private.backend_private_data_free_fn(&user->private.backend_private_data);
406 }
407 }
408
409
410 /************************************************************
411 Reset the SAM_ACCOUNT and free the NT/LM hashes.
412 ***********************************************************/
413
414 NTSTATUS pdb_reset_sam(SAM_ACCOUNT *user)
415 {
416 if (user == NULL) {
417 DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
418 #if 0
419 smb_panic("NULL pointer passed to pdb_free_sam\n");
420 #endif
421 return NT_STATUS_UNSUCCESSFUL;
422 }
423
424 pdb_free_sam_contents(user);
425
426 pdb_fill_default_sam(user);
427
428 return NT_STATUS_OK;
429 }
430
431
432 /************************************************************
433 Free the SAM_ACCOUNT and the member pointers.
434 ***********************************************************/
435
436 NTSTATUS pdb_free_sam(SAM_ACCOUNT **user)
437 {
438 if (*user == NULL) {
439 DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
440 #if 0
441 smb_panic("NULL pointer passed to pdb_free_sam\n");
442 #endif
443 return NT_STATUS_UNSUCCESSFUL;
444 }
445
446 pdb_free_sam_contents(*user);
447
448 if ((*user)->free_fn) {
449 (*user)->free_fn(user);
450 }
451
452 return NT_STATUS_OK;
453 }
454
455 /**********************************************************
456 Encode the account control bits into a string.
457 length = length of string to encode into (including terminating
458 null). length *MUST BE MORE THAN 2* !
459 **********************************************************/
460
461 char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
462 {
463 static fstring acct_str;
464
465 size_t i = 0;
466
467 SMB_ASSERT(length <= sizeof(acct_str));
468
469 acct_str[i++] = '[';
470
471 if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
472 if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
473 if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
474 if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
475 if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
476 if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
477 if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
478 if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
479 if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
480 if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
481 if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
482
483 for ( ; i < length - 2 ; i++ )
484 acct_str[i] = ' ';
485
486 i = length - 2;
487 acct_str[i++] = ']';
488 acct_str[i++] = '\0';
489
490 return acct_str;
491 }
492
493 /**********************************************************
494 Decode the account control bits from a string.
495 **********************************************************/
496
497 uint16 pdb_decode_acct_ctrl(const char *p)
498 {
499 uint16 acct_ctrl = 0;
500 BOOL finished = False;
501
502 /*
503 * Check if the account type bits have been encoded after the
504 * NT password (in the form [NDHTUWSLXI]).
505 */
506
507 if (*p != '[')
508 return 0;
509
510 for (p++; *p && !finished; p++) {
511 switch (*p) {
512 case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
513 case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
514 case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
515 case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
516 case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
517 case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
518 case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
519 case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
520 case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
521 case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
522 case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
523 case ' ': { break; }
524 case ':':
525 case '\n':
526 case '\0':
527 case ']':
528 default: { finished = True; }
529 }
530 }
531
532 return acct_ctrl;
533 }
534
535 /*************************************************************
536 Routine to set 32 hex password characters from a 16 byte array.
537 **************************************************************/
538
539 void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
540 {
541 if (pwd != NULL) {
542 int i;
543 for (i = 0; i < 16; i++)
544 slprintf(&p[i*2], 3, "%02X", pwd[i]);
545 } else {
546 if (acct_ctrl & ACB_PWNOTREQ)
547 safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
548 else
549 safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
550 }
551 }
552
553 /*************************************************************
554 Routine to get the 32 hex characters and turn them
555 into a 16 byte array.
556 **************************************************************/
557
558 BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
559 {
560 int i;
561 unsigned char lonybble, hinybble;
562 const char *hexchars = "0123456789ABCDEF";
563 char *p1, *p2;
564
565 if (!p)
566 return (False);
567
568 for (i = 0; i < 32; i += 2) {
569 hinybble = toupper(p[i]);
570 lonybble = toupper(p[i + 1]);
571
572 p1 = strchr(hexchars, hinybble);
573 p2 = strchr(hexchars, lonybble);
574
575 if (!p1 || !p2)
576 return (False);
577
578 hinybble = PTR_DIFF(p1, hexchars);
579 lonybble = PTR_DIFF(p2, hexchars);
580
581 pwd[i / 2] = (hinybble << 4) | lonybble;
582 }
583 return (True);
584 }
585
586 int algorithmic_rid_base(void)
587 {
588 static int rid_offset = 0;
589
590 if (rid_offset != 0)
591 return rid_offset;
592
593 rid_offset = lp_algorithmic_rid_base();
594
595 if (rid_offset < BASE_RID) {
596 /* Try to prevent admin foot-shooting, we can't put algorithmic
597 rids below 1000, that's the 'well known RIDs' on NT */
598 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
599 rid_offset = BASE_RID;
600 }
601 if (rid_offset & 1) {
602 DEBUG(0, ("algorithmic rid base must be even\n"));
603 rid_offset += 1;
604 }
605 return rid_offset;
606 }
607
608 /*******************************************************************
609 Converts NT user RID to a UNIX uid.
610 ********************************************************************/
611
612 uid_t fallback_pdb_user_rid_to_uid(uint32 user_rid)
613 {
614 int rid_offset = algorithmic_rid_base();
615 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
616 }
617
618 /*******************************************************************
619 converts UNIX uid to an NT User RID.
620 ********************************************************************/
621
622 uint32 fallback_pdb_uid_to_user_rid(uid_t uid)
623 {
624 int rid_offset = algorithmic_rid_base();
625 return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
626 }
627
628 /*******************************************************************
629 Converts NT group RID to a UNIX gid.
630 ********************************************************************/
631
632 gid_t pdb_group_rid_to_gid(uint32 group_rid)
633 {
634 int rid_offset = algorithmic_rid_base();
635 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
636 }
637
638 /*******************************************************************
639 converts NT Group RID to a UNIX uid.
640
641 warning: you must not call that function only
642 you must do a call to the group mapping first.
643 there is not anymore a direct link between the gid and the rid.
644 ********************************************************************/
645
646 uint32 pdb_gid_to_group_rid(gid_t gid)
647 {
648 int rid_offset = algorithmic_rid_base();
649 return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
650 }
651
652 /*******************************************************************
653 Decides if a RID is a well known RID.
654 ********************************************************************/
655
656 static BOOL pdb_rid_is_well_known(uint32 rid)
657 {
658 /* Not using rid_offset here, because this is the actual
659 NT fixed value (1000) */
660
661 return (rid < BASE_RID);
662 }
663
664 /*******************************************************************
665 Decides if a RID is a user or group RID.
666 ********************************************************************/
667
668 BOOL fallback_pdb_rid_is_user(uint32 rid)
669 {
670 /* lkcl i understand that NT attaches an enumeration to a RID
671 * such that it can be identified as either a user, group etc
672 * type. there are 5 such categories, and they are documented.
673 */
674 /* However, they are not in the RID, just somthing you can query
675 seperatly. Sorry luke :-) */
676
677 if(pdb_rid_is_well_known(rid)) {
678 /*
679 * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
680 * and DOMAIN_USER_RID_GUEST.
681 */
682 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
683 return True;
684 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
685 return True;
686 }
687 return False;
688 }
689
690 /*******************************************************************
691 Convert a rid into a name. Used in the lookup SID rpc.
692 ********************************************************************/
693
694 BOOL local_lookup_sid(const DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
695 {
696 uint32 rid;
697 SAM_ACCOUNT *sam_account = NULL;
698 GROUP_MAP map;
699 BOOL ret;
700
701 if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)){
702 DEBUG(0,("local_lookup_sid: sid_peek_check_rid return False! SID: %s\n",
703 sid_string_static(&map.sid)));
704 return False;
705 }
706 *psid_name_use = SID_NAME_UNKNOWN;
707
708 DEBUG(5,("local_lookup_sid: looking up RID %u.\n", (unsigned int)rid));
709
710 if (rid == DOMAIN_USER_RID_ADMIN) {
711 const char **admin_list = lp_admin_users(-1);
712 *psid_name_use = SID_NAME_USER;
713 if (admin_list) {
714 const char *p = *admin_list;
715 if(!next_token(&p, name, NULL, sizeof(fstring)))
716 fstrcpy(name, "Administrator");
717 } else {
718 fstrcpy(name, "Administrator");
719 }
720 return True;
721 }
722
723 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
724 return False;
725 }
726
727 /* see if the passdb can help us with the name of the user */
728
729 /* BEING ROOT BLLOCK */
730 become_root();
731 if (pdb_getsampwsid(sam_account, sid)) {
732 unbecome_root(); /* -----> EXIT BECOME_ROOT() */
733 fstrcpy(name, pdb_get_username(sam_account));
734 *psid_name_use = SID_NAME_USER;
735
736 pdb_free_sam(&sam_account);
737
738 return True;
739 }
740 pdb_free_sam(&sam_account);
741
742 ret = pdb_getgrsid(&map, *sid);
743 unbecome_root();
744 /* END BECOME_ROOT BLOCK */
745
746 if ( ret ) {
747 if (map.gid!=(gid_t)-1) {
748 DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
749 } else {
750 DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid. Returning name.\n", map.nt_name));
751 }
752
753 fstrcpy(name, map.nt_name);
754 *psid_name_use = map.sid_name_use;
755 return True;
756 }
757
758 if (fallback_pdb_rid_is_user(rid)) {
759 uid_t uid;
760 struct passwd *pw = NULL;
761
762 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
763
764 uid = fallback_pdb_user_rid_to_uid(rid);
765 pw = sys_getpwuid( uid );
766
767 DEBUG(5,("local_lookup_sid: looking up uid %u %s\n", (unsigned int)uid,
768 pw ? "succeeded" : "failed" ));
769
770 if ( !pw )
771 fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
772 else
773 fstrcpy( name, pw->pw_name );
774
775 DEBUG(5,("local_lookup_sid: found user %s for rid %u\n", name,
776 (unsigned int)rid ));
777
778 *psid_name_use = SID_NAME_USER;
779
780 return ( pw != NULL );
781 } else {
782 gid_t gid;
783 struct group *gr;
784
785 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
786
787 gid = pdb_group_rid_to_gid(rid);
788 gr = getgrgid(gid);
789
790 *psid_name_use = SID_NAME_ALIAS;
791
792 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
793 gr ? "succeeded" : "failed" ));
794
795 if( !gr )
796 fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
797 else
798 fstrcpy( name, gr->gr_name);
799
800 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
801 (unsigned int)rid ));
802
803 /* assume fallback groups aer domain global groups */
804
805 *psid_name_use = SID_NAME_DOM_GRP;
806
807 return ( gr != NULL );
808 }
809 }
810
811 /*******************************************************************
812 Convert a name into a SID. Used in the lookup name rpc.
813 ********************************************************************/
814
815 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
816 {
817 DOM_SID local_sid;
818 DOM_SID sid;
819 fstring user;
820 SAM_ACCOUNT *sam_account = NULL;
821 struct group *grp;
822 GROUP_MAP map;
823
824 *psid_name_use = SID_NAME_UNKNOWN;
825
826 /*
827 * user may be quoted a const string, and map_username and
828 * friends can modify it. Make a modifiable copy. JRA.
829 */
830
831 fstrcpy(user, c_user);
832
833 sid_copy(&local_sid, get_global_sam_sid());
834
835 if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
836 fstring sid_str;
837 sid_copy( psid, &sid);
838 sid_to_string(sid_str, &sid);
839 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
840 (unsigned int)*psid_name_use ));
841 return True;
842 }
843
844 (void)map_username(user);
845
846 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
847 return False;
848 }
849
850 /* BEGIN ROOT BLOCK */
851
852 become_root();
853 if (pdb_getsampwnam(sam_account, user)) {
854 unbecome_root();
855 sid_copy(psid, pdb_get_user_sid(sam_account));
856 *psid_name_use = SID_NAME_USER;
857
858 pdb_free_sam(&sam_account);
859 return True;
860 }
861
862 pdb_free_sam(&sam_account);
863
864 /*
865 * Maybe it was a group ?
866 */
867
868 /* check if it's a mapped group */
869 if (pdb_getgrnam(&map, user)) {
870 /* yes it's a mapped group */
871 sid_copy(&local_sid, &map.sid);
872 *psid_name_use = map.sid_name_use;
873 } else {
874 /* it's not a mapped group */
875 grp = getgrnam(user);
876 if(!grp) {
877 unbecome_root(); /* ---> exit form block */
878 return False;
879 }
880
881 /*
882 *check if it's mapped, if it is reply it doesn't exist
883 *
884 * that's to prevent this case:
885 *
886 * unix group ug is mapped to nt group ng
887 * someone does a lookup on ug
888 * we must not reply as it doesn't "exist" anymore
889 * for NT. For NT only ng exists.
890 * JFM, 30/11/2001
891 */
892
893 if (pdb_getgrgid(&map, grp->gr_gid)){
894 unbecome_root(); /* ---> exit form block */
895 return False;
896 }
897
898 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
899 *psid_name_use = SID_NAME_ALIAS;
900 }
901 unbecome_root();
902 /* END ROOT BLOCK */
903
904 sid_copy( psid, &local_sid);
905
906 return True;
907 }
908
909 /*************************************************************
910 Change a password entry in the local smbpasswd file.
911 *************************************************************/
912
913 BOOL local_password_change(const char *user_name, int local_flags,
914 const char *new_passwd,
915 char *err_str, size_t err_str_len,
916 char *msg_str, size_t msg_str_len)
917 {
918 SAM_ACCOUNT *sam_pass=NULL;
919 uint16 other_acb;
920
921 *err_str = '\0';
922 *msg_str = '\0';
923
924 /* Get the smb passwd entry for this user */
925 pdb_init_sam(&sam_pass);
926
927 become_root();
928 if(!pdb_getsampwnam(sam_pass, user_name)) {
929 unbecome_root();
930 pdb_free_sam(&sam_pass);
931
932 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
933 /* Might not exist in /etc/passwd. Use rid algorithm here */
934 if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
935 slprintf(err_str, err_str_len-1, "Failed to initialise SAM_ACCOUNT for user %s. Does this user exist in the UNIX password database ?\n", user_name);
936 return False;
937 }
938 } else {
939 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
940 return False;
941 }
942 } else {
943 unbecome_root();
944 /* the entry already existed */
945 local_flags &= ~LOCAL_ADD_USER;
946 }
947
948 /* the 'other' acb bits not being changed here */
949 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
950 if (local_flags & LOCAL_TRUST_ACCOUNT) {
951 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
952 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
953 pdb_free_sam(&sam_pass);
954 return False;
955 }
956 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
957 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
958 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
959 pdb_free_sam(&sam_pass);
960 return False;
961 }
962 } else {
963 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
964 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
965 pdb_free_sam(&sam_pass);
966 return False;
967 }
968 }
969
970 /*
971 * We are root - just write the new password
972 * and the valid last change time.
973 */
974
975 if (local_flags & LOCAL_DISABLE_USER) {
976 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
977 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
978 pdb_free_sam(&sam_pass);
979 return False;
980 }
981 } else if (local_flags & LOCAL_ENABLE_USER) {
982 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
983 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
984 pdb_free_sam(&sam_pass);
985 return False;
986 }
987 }
988
989 if (local_flags & LOCAL_SET_NO_PASSWORD) {
990 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
991 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
992 pdb_free_sam(&sam_pass);
993 return False;
994 }
995 } else if (local_flags & LOCAL_SET_PASSWORD) {
996 /*
997 * If we're dealing with setting a completely empty user account
998 * ie. One with a password of 'XXXX', but not set disabled (like
999 * an account created from scratch) then if the old password was
1000 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1001 * We remove that as we're giving this user their first password
1002 * and the decision hasn't really been made to disable them (ie.
1003 * don't create them disabled). JRA.
1004 */
1005 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1006 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1007 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1008 pdb_free_sam(&sam_pass);
1009 return False;
1010 }
1011 }
1012 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1013 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1014 pdb_free_sam(&sam_pass);
1015 return False;
1016 }
1017
1018 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1019 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1020 pdb_free_sam(&sam_pass);
1021 return False;
1022 }
1023 }
1024
1025 if (local_flags & LOCAL_ADD_USER) {
1026 if (pdb_add_sam_account(sam_pass)) {
1027 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1028 pdb_free_sam(&sam_pass);
1029 return True;
1030 } else {
1031 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1032 pdb_free_sam(&sam_pass);
1033 return False;
1034 }
1035 } else if (local_flags & LOCAL_DELETE_USER) {
1036 if (!pdb_delete_sam_account(sam_pass)) {
1037 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1038 pdb_free_sam(&sam_pass);
1039 return False;
1040 }
1041 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1042 } else {
1043 if(!pdb_update_sam_account(sam_pass)) {
1044 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1045 pdb_free_sam(&sam_pass);
1046 return False;
1047 }
1048 if(local_flags & LOCAL_DISABLE_USER)
1049 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1050 else if (local_flags & LOCAL_ENABLE_USER)
1051 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1052 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1053 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1054 }
1055
1056 pdb_free_sam(&sam_pass);
1057 return True;
1058 }
1059
1060 /****************************************************************************
1061 Convert a uid to SID - algorithmic.
1062 ****************************************************************************/
1063
1064 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1065 {
1066 if ( !lp_enable_rid_algorithm() )
1067 return NULL;
1068
1069 DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1070 sid_copy( psid, get_global_sam_sid() );
1071 sid_append_rid( psid, fallback_pdb_uid_to_user_rid(uid) );
1072 DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
1073 (unsigned int)uid, sid_string_static(psid) ));
1074
1075 return psid;
1076 }
1077
1078 /****************************************************************************
1079 Convert a uid to SID - locally.
1080 ****************************************************************************/
1081
1082 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1083 {
1084 SAM_ACCOUNT *sampw = NULL;
1085 struct passwd *unix_pw;
1086 BOOL ret;
1087
1088 unix_pw = sys_getpwuid( uid );
1089
1090 if ( !unix_pw ) {
1091 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1092 return algorithmic_uid_to_sid( psid, uid);
1093 }
1094
1095 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1096 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1097 return NULL;
1098 }
1099
1100 become_root();
1101 ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1102 unbecome_root();
1103
1104 if ( ret )
1105 sid_copy( psid, pdb_get_user_sid(sampw) );
1106 else {
1107 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1108 unix_pw->pw_name, (unsigned long)uid));
1109
1110 return algorithmic_uid_to_sid( psid, uid);
1111 }
1112
1113 DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
1114 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1115
1116 return psid;
1117 }
1118
1119 /****************************************************************************
1120 Convert a SID to uid - locally.
1121 ****************************************************************************/
1122
1123 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1124 {
1125 SAM_ACCOUNT *sampw = NULL;
1126 struct passwd *unix_pw;
1127 const char *user_name;
1128
1129 *name_type = SID_NAME_UNKNOWN;
1130
1131 /*
1132 * We can only convert to a uid if this is our local
1133 * Domain SID (ie. we are the controling authority).
1134 */
1135 if (!sid_check_is_in_our_domain(psid) ) {
1136 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1137 return False;
1138 }
1139
1140 /* lookup the user account */
1141
1142 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1143 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1144 return False;
1145 }
1146
1147 become_root();
1148 if ( !pdb_getsampwsid(sampw, psid) ) {
1149 unbecome_root();
1150 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1151 sid_string_static(psid)));
1152 return False;
1153 }
1154 unbecome_root();
1155
1156 user_name = pdb_get_username(sampw);
1157
1158 unix_pw = sys_getpwnam( user_name );
1159
1160 if ( !unix_pw ) {
1161 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1162 user_name));
1163 pdb_free_sam( &sampw );
1164 return False;
1165 }
1166
1167 *puid = unix_pw->pw_uid;
1168
1169 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1170 (unsigned int)*puid, user_name ));
1171
1172 *name_type = SID_NAME_USER;
1173
1174 return True;
1175 }
1176
1177 /****************************************************************************
1178 Convert a gid to SID - algorithmic.
1179 ****************************************************************************/
1180
1181 DOM_SID *algorithmic_gid_to_sid(DOM_SID *psid, uid_t gid)
1182 {
1183 if ( !lp_enable_rid_algorithm() )
1184 return NULL;
1185
1186 DEBUG(8,("algorithmic_gid_to_sid: falling back to RID algorithm\n"));
1187 sid_copy( psid, get_global_sam_sid() );
1188 sid_append_rid( psid, pdb_gid_to_group_rid(gid) );
1189 DEBUG(10,("algorithmic_gid_to_sid: gid (%d) -> SID %s.\n",
1190 (unsigned int)gid, sid_string_static(psid) ));
1191
1192 return psid;
1193 }
1194
1195 /****************************************************************************
1196 Convert a gid to SID - locally.
1197 ****************************************************************************/
1198
1199 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1200 {
1201 GROUP_MAP group;
1202 BOOL ret;
1203
1204 /* we don't need to disable winbindd since the gid is stored in
1205 the GROUP_MAP object */
1206
1207 /* done as root since ldap backend requires root to open a connection */
1208
1209 become_root();
1210 ret = pdb_getgrgid( &group, gid );
1211 unbecome_root();
1212
1213 if ( !ret ) {
1214
1215 /* fallback to rid mapping if enabled */
1216
1217 if ( lp_enable_rid_algorithm() ) {
1218
1219 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1220 (unsigned int)gid, sid_string_static(psid)));
1221
1222 return algorithmic_gid_to_sid(psid, gid);
1223 }
1224 else
1225 return NULL;
1226 }
1227
1228 sid_copy( psid, &group.sid );
1229
1230 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1231 (unsigned int)gid, sid_string_static(psid)));
1232
1233 return psid;
1234 }
1235
1236 /****************************************************************************
1237 Convert a SID to gid - locally.
1238 ****************************************************************************/
1239
1240 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1241 {
1242 uint32 rid;
1243 GROUP_MAP group;
1244 BOOL ret;
1245
1246 *name_type = SID_NAME_UNKNOWN;
1247
1248 /* This call can enumerate group mappings for foreign sids as well.
1249 So don't check for a match against our domain SID */
1250
1251 /* we don't need to disable winbindd since the gid is stored in
1252 the GROUP_MAP object */
1253
1254 become_root();
1255 ret = pdb_getgrsid(&group, *psid);
1256 unbecome_root();
1257
1258 if ( !ret ) {
1259
1260 /* fallback to rid mapping if enabled */
1261
1262 if ( lp_enable_rid_algorithm() ) {
1263
1264 if (!sid_check_is_in_our_domain(psid) ) {
1265 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1266 return False;
1267 }
1268
1269 if (!sid_peek_rid(psid, &rid)) {
1270 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1271 return False;
1272 }
1273
1274 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1275
1276 if (fallback_pdb_rid_is_user(rid)) {
1277 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1278 return False;
1279 } else {
1280 *pgid = pdb_group_rid_to_gid(rid);
1281 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1282 return True;
1283 }
1284 }
1285
1286 return False;
1287 }
1288
1289 *pgid = group.gid;
1290 *name_type = group.sid_name_use;
1291
1292 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1293 (unsigned int)*pgid));
1294
1295 return True;
1296 }
1297
1298 /**********************************************************************
1299 Marshall/unmarshall SAM_ACCOUNT structs.
1300 *********************************************************************/
1301
1302 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1303 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1304 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1305
1306 /**********************************************************************
1307 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1308 *********************************************************************/
1309
1310 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1311 {
1312 return(init_sam_from_buffer_v2(sampass, buf, buflen));
1313 }
1314
1315 /**********************************************************************
1316 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1317 *********************************************************************/
1318
1319 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1320 {
1321 return(init_buffer_from_sam_v2(buf, sampass, size_only));
1322 }
1323
1324
1325 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1326 {
1327
1328 /* times are stored as 32bit integer
1329 take care on system with 64bit wide time_t
1330 --SSS */
1331 uint32 logon_time,
1332 logoff_time,
1333 kickoff_time,
1334 pass_last_set_time,
1335 pass_can_change_time,
1336 pass_must_change_time;
1337 char *username;
1338 char *domain;
1339 char *nt_username;
1340 char *dir_drive;
1341 char *unknown_str;
1342 char *munged_dial;
1343 char *fullname;
1344 char *homedir;
1345 char *logon_script;
1346 char *profile_path;
1347 char *acct_desc;
1348 char *workstations;
1349 uint32 username_len, domain_len, nt_username_len,
1350 dir_drive_len, unknown_str_len, munged_dial_len,
1351 fullname_len, homedir_len, logon_script_len,
1352 profile_path_len, acct_desc_len, workstations_len;
1353
1354 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1355 uint16 acct_ctrl, logon_divs;
1356 uint16 bad_password_count, logon_count;
1357 uint8 *hours;
1358 uint8 *lm_pw_ptr, *nt_pw_ptr;
1359 uint32 len = 0;
1360 uint32 lm_pw_len, nt_pw_len, hourslen;
1361 BOOL ret = True;
1362
1363 if(sampass == NULL || buf == NULL) {
1364 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1365 return False;
1366 }
1367
1368 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1369
1370 /* unpack the buffer into variables */
1371 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1372 &logon_time, /* d */
1373 &logoff_time, /* d */
1374 &kickoff_time, /* d */
1375 &pass_last_set_time, /* d */
1376 &pass_can_change_time, /* d */
1377 &pass_must_change_time, /* d */
1378 &username_len, &username, /* B */
1379 &domain_len, &domain, /* B */
1380 &nt_username_len, &nt_username, /* B */
1381 &fullname_len, &fullname, /* B */
1382 &homedir_len, &homedir, /* B */
1383 &dir_drive_len, &dir_drive, /* B */
1384 &logon_script_len, &logon_script, /* B */
1385 &profile_path_len, &profile_path, /* B */
1386 &acct_desc_len, &acct_desc, /* B */
1387 &workstations_len, &workstations, /* B */
1388 &unknown_str_len, &unknown_str, /* B */
1389 &munged_dial_len, &munged_dial, /* B */
1390 &user_rid, /* d */
1391 &group_rid, /* d */
1392 &lm_pw_len, &lm_pw_ptr, /* B */
1393 &nt_pw_len, &nt_pw_ptr, /* B */
1394 &acct_ctrl, /* w */
1395 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1396 &logon_divs, /* w */
1397 &hours_len, /* d */
1398 &hourslen, &hours, /* B */
1399 &bad_password_count, /* w */
1400 &logon_count, /* w */
1401 &unknown_6); /* d */
1402
1403 if (len == (uint32) -1) {
1404 ret = False;
1405 goto done;
1406 }
1407
1408 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1409 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1410 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1411 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1412 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1413 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1414
1415 pdb_set_username(sampass, username, PDB_SET);
1416 pdb_set_domain(sampass, domain, PDB_SET);
1417 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1418 pdb_set_fullname(sampass, fullname, PDB_SET);
1419
1420 if (homedir) {
1421 pdb_set_homedir(sampass, homedir, PDB_SET);
1422 }
1423 else {
1424 pdb_set_homedir(sampass,
1425 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1426 PDB_DEFAULT);
1427 }
1428
1429 if (dir_drive)
1430 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1431 else {
1432 pdb_set_dir_drive(sampass,
1433 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1434 PDB_DEFAULT);
1435 }
1436
1437 if (logon_script)
1438 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1439 else {
1440 pdb_set_logon_script(sampass,
1441 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1442 PDB_DEFAULT);
1443 }
1444
1445 if (profile_path) {
1446 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1447 } else {
1448 pdb_set_profile_path(sampass,
1449 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1450 PDB_DEFAULT);
1451 }
1452
1453 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1454 pdb_set_workstations(sampass, workstations, PDB_SET);
1455 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1456
1457 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1458 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1459 ret = False;
1460 goto done;
1461 }
1462 }
1463
1464 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1465 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1466 ret = False;
1467 goto done;
1468 }
1469 }
1470
1471 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1472 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1473 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1474 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1475 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1476 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1477 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1478 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1479 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1480 pdb_set_hours(sampass, hours, PDB_SET);
1481
1482 done:
1483
1484 SAFE_FREE(username);
1485 SAFE_FREE(domain);
1486 SAFE_FREE(nt_username);
1487 SAFE_FREE(fullname);
1488 SAFE_FREE(homedir);
1489 SAFE_FREE(dir_drive);
1490 SAFE_FREE(logon_script);
1491 SAFE_FREE(profile_path);
1492 SAFE_FREE(acct_desc);
1493 SAFE_FREE(workstations);
1494 SAFE_FREE(munged_dial);
1495 SAFE_FREE(unknown_str);
1496 SAFE_FREE(lm_pw_ptr);
1497 SAFE_FREE(nt_pw_ptr);
1498 SAFE_FREE(hours);
1499
1500 return ret;
1501 }
1502
1503 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1504 {
1505
1506 /* times are stored as 32bit integer
1507 take care on system with 64bit wide time_t
1508 --SSS */
1509 uint32 logon_time,
1510 logoff_time,
1511 kickoff_time,
1512 bad_password_time,
1513 pass_last_set_time,
1514 pass_can_change_time,
1515 pass_must_change_time;
1516 char *username;
1517 char *domain;
1518 char *nt_username;
1519 char *dir_drive;
1520 char *unknown_str;
1521 char *munged_dial;
1522 char *fullname;
1523 char *homedir;
1524 char *logon_script;
1525 char *profile_path;
1526 char *acct_desc;
1527 char *workstations;
1528 uint32 username_len, domain_len, nt_username_len,
1529 dir_drive_len, unknown_str_len, munged_dial_len,
1530 fullname_len, homedir_len, logon_script_len,
1531 profile_path_len, acct_desc_len, workstations_len;
1532
1533 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1534 uint16 acct_ctrl, logon_divs;
1535 uint16 bad_password_count, logon_count;
1536 uint8 *hours;
1537 uint8 *lm_pw_ptr, *nt_pw_ptr;
1538 uint32 len = 0;
1539 uint32 lm_pw_len, nt_pw_len, hourslen;
1540 BOOL ret = True;
1541
1542 if(sampass == NULL || buf == NULL) {
1543 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1544 return False;
1545 }
1546
1547 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1548
1549 /* unpack the buffer into variables */
1550 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1551 &logon_time, /* d */
1552 &logoff_time, /* d */
1553 &kickoff_time, /* d */
1554 /* Change from V0 is addition of bad_password_time field. */
1555 &bad_password_time, /* d */
1556 &pass_last_set_time, /* d */
1557 &pass_can_change_time, /* d */
1558 &pass_must_change_time, /* d */
1559 &username_len, &username, /* B */
1560 &domain_len, &domain, /* B */
1561 &nt_username_len, &nt_username, /* B */
1562 &fullname_len, &fullname, /* B */
1563 &homedir_len, &homedir, /* B */
1564 &dir_drive_len, &dir_drive, /* B */
1565 &logon_script_len, &logon_script, /* B */
1566 &profile_path_len, &profile_path, /* B */
1567 &acct_desc_len, &acct_desc, /* B */
1568 &workstations_len, &workstations, /* B */
1569 &unknown_str_len, &unknown_str, /* B */
1570 &munged_dial_len, &munged_dial, /* B */
1571 &user_rid, /* d */
1572 &group_rid, /* d */
1573 &lm_pw_len, &lm_pw_ptr, /* B */
1574 &nt_pw_len, &nt_pw_ptr, /* B */
1575 &acct_ctrl, /* w */
1576 &remove_me, /* d */
1577 &logon_divs, /* w */
1578 &hours_len, /* d */
1579 &hourslen, &hours, /* B */
1580 &bad_password_count, /* w */
1581 &logon_count, /* w */
1582 &unknown_6); /* d */
1583
1584 if (len == (uint32) -1) {
1585 ret = False;
1586 goto done;
1587 }
1588
1589 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1590 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1591 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1592
1593 /* Change from V0 is addition of bad_password_time field. */
1594 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1595 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1596 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1597 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1598
1599 pdb_set_username(sampass, username, PDB_SET);
1600 pdb_set_domain(sampass, domain, PDB_SET);
1601 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1602 pdb_set_fullname(sampass, fullname, PDB_SET);
1603
1604 if (homedir) {
1605 pdb_set_homedir(sampass, homedir, PDB_SET);
1606 }
1607 else {
1608 pdb_set_homedir(sampass,
1609 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1610 PDB_DEFAULT);
1611 }
1612
1613 if (dir_drive)
1614 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1615 else {
1616 pdb_set_dir_drive(sampass,
1617 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1618 PDB_DEFAULT);
1619 }
1620
1621 if (logon_script)
1622 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1623 else {
1624 pdb_set_logon_script(sampass,
1625 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1626 PDB_DEFAULT);
1627 }
1628
1629 if (profile_path) {
1630 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1631 } else {
1632 pdb_set_profile_path(sampass,
1633 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1634 PDB_DEFAULT);
1635 }
1636
1637 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1638 pdb_set_workstations(sampass, workstations, PDB_SET);
1639 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1640
1641 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1642 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1643 ret = False;
1644 goto done;
1645 }
1646 }
1647
1648 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1649 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1650 ret = False;
1651 goto done;
1652 }
1653 }
1654
1655 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1656
1657 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1658 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1659 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1660 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1661 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1662 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1663 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1664 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1665 pdb_set_hours(sampass, hours, PDB_SET);
1666
1667 done:
1668
1669 SAFE_FREE(username);
1670 SAFE_FREE(domain);
1671 SAFE_FREE(nt_username);
1672 SAFE_FREE(fullname);
1673 SAFE_FREE(homedir);
1674 SAFE_FREE(dir_drive);
1675 SAFE_FREE(logon_script);
1676 SAFE_FREE(profile_path);
1677 SAFE_FREE(acct_desc);
1678 SAFE_FREE(workstations);
1679 SAFE_FREE(munged_dial);
1680 SAFE_FREE(unknown_str);
1681 SAFE_FREE(lm_pw_ptr);
1682 SAFE_FREE(nt_pw_ptr);
1683 SAFE_FREE(hours);
1684
1685 return ret;
1686 }
1687
1688
1689 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1690 {
1691
1692 /* times are stored as 32bit integer
1693 take care on system with 64bit wide time_t
1694 --SSS */
1695 uint32 logon_time,
1696 logoff_time,
1697 kickoff_time,
1698 bad_password_time,
1699 pass_last_set_time,
1700 pass_can_change_time,
1701 pass_must_change_time;
1702 char *username;
1703 char *domain;
1704 char *nt_username;
1705 char *dir_drive;
1706 char *unknown_str;
1707 char *munged_dial;
1708 char *fullname;
1709 char *homedir;
1710 char *logon_script;
1711 char *profile_path;
1712 char *acct_desc;
1713 char *workstations;
1714 uint32 username_len, domain_len, nt_username_len,
1715 dir_drive_len, unknown_str_len, munged_dial_len,
1716 fullname_len, homedir_len, logon_script_len,
1717 profile_path_len, acct_desc_len, workstations_len;
1718
1719 uint32 user_rid, group_rid, hours_len, unknown_6;
1720 uint16 acct_ctrl, logon_divs;
1721 uint16 bad_password_count, logon_count;
1722 uint8 *hours;
1723 uint8 *lm_pw_ptr, *nt_pw_ptr, *nt_pw_hist_ptr;
1724 uint32 len = 0;
1725 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1726 uint32 pwHistLen = 0;
1727 BOOL ret = True;
1728
1729 if(sampass == NULL || buf == NULL) {
1730 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1731 return False;
1732 }
1733
1734 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1735
1736 /* unpack the buffer into variables */
1737 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1738 &logon_time, /* d */
1739 &logoff_time, /* d */
1740 &kickoff_time, /* d */
1741 &bad_password_time, /* d */
1742 &pass_last_set_time, /* d */
1743 &pass_can_change_time, /* d */
1744 &pass_must_change_time, /* d */
1745 &username_len, &username, /* B */
1746 &domain_len, &domain, /* B */
1747 &nt_username_len, &nt_username, /* B */
1748 &fullname_len, &fullname, /* B */
1749 &homedir_len, &homedir, /* B */
1750 &dir_drive_len, &dir_drive, /* B */
1751 &logon_script_len, &logon_script, /* B */
1752 &profile_path_len, &profile_path, /* B */
1753 &acct_desc_len, &acct_desc, /* B */
1754 &workstations_len, &workstations, /* B */
1755 &unknown_str_len, &unknown_str, /* B */
1756 &munged_dial_len, &munged_dial, /* B */
1757 &user_rid, /* d */
1758 &group_rid, /* d */
1759 &lm_pw_len, &lm_pw_ptr, /* B */
1760 &nt_pw_len, &nt_pw_ptr, /* B */
1761 /* Change from V1 is addition of password history field. */
1762 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1763 &acct_ctrl, /* w */
1764 /* Also "remove_me" field was removed. */
1765 &logon_divs, /* w */
1766 &hours_len, /* d */
1767 &hourslen, &hours, /* B */
1768 &bad_password_count, /* w */
1769 &logon_count, /* w */
1770 &unknown_6); /* d */
1771
1772 if (len == (uint32) -1) {
1773 ret = False;
1774 goto done;
1775 }
1776
1777 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1778 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1779 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1780 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1781 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1782 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1783 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1784
1785 pdb_set_username(sampass, username, PDB_SET);
1786 pdb_set_domain(sampass, domain, PDB_SET);
1787 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1788 pdb_set_fullname(sampass, fullname, PDB_SET);
1789
1790 if (homedir) {
1791 pdb_set_homedir(sampass, homedir, PDB_SET);
1792 }
1793 else {
1794 pdb_set_homedir(sampass,
1795 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1796 PDB_DEFAULT);
1797 }
1798
1799 if (dir_drive)
1800 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1801 else {
1802 pdb_set_dir_drive(sampass,
1803 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1804 PDB_DEFAULT);
1805 }
1806
1807 if (logon_script)
1808 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1809 else {
1810 pdb_set_logon_script(sampass,
1811 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1812 PDB_DEFAULT);
1813 }
1814
1815 if (profile_path) {
1816 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1817 } else {
1818 pdb_set_profile_path(sampass,
1819 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1820 PDB_DEFAULT);
1821 }
1822
1823 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1824 pdb_set_workstations(sampass, workstations, PDB_SET);
1825 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1826
1827 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1828 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1829 ret = False;
1830 goto done;
1831 }
1832 }
1833
1834 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1835 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1836 ret = False;
1837 goto done;
1838 }
1839 }
1840
1841 /* Change from V1 is addition of password history field. */
1842 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
1843 if (pwHistLen) {
1844 char *pw_hist = malloc(pwHistLen * NT_HASH_LEN);
1845 if (!pw_hist) {
1846 ret = False;
1847 goto done;
1848 }
1849 memset(pw_hist, '\0', pwHistLen * NT_HASH_LEN);
1850 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1851 int i;
1852 SMB_ASSERT((nt_pw_hist_len % NT_HASH_LEN) == 0);
1853 nt_pw_hist_len /= NT_HASH_LEN;
1854 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1855 memcpy(&pw_hist[i*NT_HASH_LEN], &nt_pw_hist_ptr[i*NT_HASH_LEN], NT_HASH_LEN);
1856 }
1857 }
1858 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1859 SAFE_FREE(pw_hist);
1860 ret = False;
1861 goto done;
1862 }
1863 SAFE_FREE(pw_hist);
1864 } else {
1865 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1866 }
1867
1868 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1869 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1870 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1871 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1872 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1873 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1874 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1875 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1876 pdb_set_hours(sampass, hours, PDB_SET);
1877
1878 done:
1879
1880 SAFE_FREE(username);
1881 SAFE_FREE(domain);
1882 SAFE_FREE(nt_username);
1883 SAFE_FREE(fullname);
1884 SAFE_FREE(homedir);
1885 SAFE_FREE(dir_drive);
1886 SAFE_FREE(logon_script);
1887 SAFE_FREE(profile_path);
1888 SAFE_FREE(acct_desc);
1889 SAFE_FREE(workstations);
1890 SAFE_FREE(munged_dial);
1891 SAFE_FREE(unknown_str);
1892 SAFE_FREE(lm_pw_ptr);
1893 SAFE_FREE(nt_pw_ptr);
1894 SAFE_FREE(nt_pw_hist_ptr);
1895 SAFE_FREE(hours);
1896
1897 return ret;
1898 }
1899
1900 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1901 {
1902 size_t len, buflen;
1903
1904 /* times are stored as 32bit integer
1905 take care on system with 64bit wide time_t
1906 --SSS */
1907 uint32 logon_time,
1908 logoff_time,
1909 kickoff_time,
1910 bad_password_time,
1911 pass_last_set_time,
1912 pass_can_change_time,
1913 pass_must_change_time;
1914
1915 uint32 user_rid, group_rid;
1916
1917 const char *username;
1918 const char *domain;
1919 const char *nt_username;
1920 const char *dir_drive;
1921 const char *unknown_str;
1922 const char *munged_dial;
1923 const char *fullname;
1924 const char *homedir;
1925 const char *logon_script;
1926 const char *profile_path;
1927 const char *acct_desc;
1928 const char *workstations;
1929 uint32 username_len, domain_len, nt_username_len,
1930 dir_drive_len, unknown_str_len, munged_dial_len,
1931 fullname_len, homedir_len, logon_script_len,
1932 profile_path_len, acct_desc_len, workstations_len;
1933
1934 const uint8 *lm_pw;
1935 const uint8 *nt_pw;
1936 const uint8 *nt_pw_hist;
1937 uint32 lm_pw_len = 16;
1938 uint32 nt_pw_len = 16;
1939 uint32 nt_pw_hist_len;
1940 uint32 pwHistLen = 0;
1941
1942 /* do we have a valid SAM_ACCOUNT pointer? */
1943 if (sampass == NULL) {
1944 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1945 return -1;
1946 }
1947
1948 *buf = NULL;
1949 buflen = 0;
1950
1951 logon_time = (uint32)pdb_get_logon_time(sampass);
1952 logoff_time = (uint32)pdb_get_logoff_time(sampass);
1953 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
1954 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
1955 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
1956 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
1957 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
1958
1959 user_rid = pdb_get_user_rid(sampass);
1960 group_rid = pdb_get_group_rid(sampass);
1961
1962 username = pdb_get_username(sampass);
1963 if (username) {
1964 username_len = strlen(username) +1;
1965 } else {
1966 username_len = 0;
1967 }
1968
1969 domain = pdb_get_domain(sampass);
1970 if (domain) {
1971 domain_len = strlen(domain) +1;
1972 } else {
1973 domain_len = 0;
1974 }
1975
1976 nt_username = pdb_get_nt_username(sampass);
1977 if (nt_username) {
1978 nt_username_len = strlen(nt_username) +1;
1979 } else {
1980 nt_username_len = 0;
1981 }
1982
1983 fullname = pdb_get_fullname(sampass);
1984 if (fullname) {
1985 fullname_len = strlen(fullname) +1;
1986 } else {
1987 fullname_len = 0;
1988 }
1989
1990 /*
1991 * Only updates fields which have been set (not defaults from smb.conf)
1992 */
1993
1994 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1995 dir_drive = pdb_get_dir_drive(sampass);
1996 } else {
1997 dir_drive = NULL;
1998 }
1999 if (dir_drive) {
2000 dir_drive_len = strlen(dir_drive) +1;
2001 } else {
2002 dir_drive_len = 0;
2003 }
2004
2005 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2006 homedir = pdb_get_homedir(sampass);
2007 } else {
2008 homedir = NULL;
2009 }
2010 if (homedir) {
2011 homedir_len = strlen(homedir) +1;
2012 } else {
2013 homedir_len = 0;
2014 }
2015
2016 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2017 logon_script = pdb_get_logon_script(sampass);
2018 } else {
2019 logon_script = NULL;
2020 }
2021 if (logon_script) {
2022 logon_script_len = strlen(logon_script) +1;
2023 } else {
2024 logon_script_len = 0;
2025 }
2026
2027 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2028 profile_path = pdb_get_profile_path(sampass);
2029 } else {
2030 profile_path = NULL;
2031 }
2032 if (profile_path) {
2033 profile_path_len = strlen(profile_path) +1;
2034 } else {
2035 profile_path_len = 0;
2036 }
2037
2038 lm_pw = pdb_get_lanman_passwd(sampass);
2039 if (!lm_pw) {
2040 lm_pw_len = 0;
2041 }
2042
2043 nt_pw = pdb_get_nt_passwd(sampass);
2044 if (!nt_pw) {
2045 nt_pw_len = 0;
2046 }
2047
2048 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
2049 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
2050 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2051 nt_pw_hist_len *= NT_HASH_LEN;
2052 } else {
2053 nt_pw_hist_len = 0;
2054 }
2055
2056 acct_desc = pdb_get_acct_desc(sampass);
2057 if (acct_desc) {
2058 acct_desc_len = strlen(acct_desc) +1;
2059 } else {
2060 acct_desc_len = 0;
2061 }
2062
2063 workstations = pdb_get_workstations(sampass);
2064 if (workstations) {
2065 workstations_len = strlen(workstations) +1;
2066 } else {
2067 workstations_len = 0;
2068 }
2069
2070 unknown_str = NULL;
2071 unknown_str_len = 0;
2072
2073 munged_dial = pdb_get_munged_dial(sampass);
2074 if (munged_dial) {
2075 munged_dial_len = strlen(munged_dial) +1;
2076 } else {
2077 munged_dial_len = 0;
2078 }
2079
2080 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2081
2082 /* one time to get the size needed */
2083 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
2084 logon_time, /* d */
2085 logoff_time, /* d */
2086 kickoff_time, /* d */
2087 bad_password_time, /* d */
2088 pass_last_set_time, /* d */
2089 pass_can_change_time, /* d */
2090 pass_must_change_time, /* d */
2091 username_len, username, /* B */
2092 domain_len, domain, /* B */
2093 nt_username_len, nt_username, /* B */
2094 fullname_len, fullname, /* B */
2095 homedir_len, homedir, /* B */
2096 dir_drive_len, dir_drive, /* B */
2097 logon_script_len, logon_script, /* B */
2098 profile_path_len, profile_path, /* B */
2099 acct_desc_len, acct_desc, /* B */
2100 workstations_len, workstations, /* B */
2101 unknown_str_len, unknown_str, /* B */
2102 munged_dial_len, munged_dial, /* B */
2103 user_rid, /* d */
2104 group_rid, /* d */
2105 lm_pw_len, lm_pw, /* B */
2106 nt_pw_len, nt_pw, /* B */
2107 nt_pw_hist_len, nt_pw_hist, /* B */
2108 pdb_get_acct_ctrl(sampass), /* w */
2109 pdb_get_logon_divs(sampass), /* w */
2110 pdb_get_hours_len(sampass), /* d */
2111 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2112 pdb_get_bad_password_count(sampass), /* w */
2113 pdb_get_logon_count(sampass), /* w */
2114 pdb_get_unknown_6(sampass)); /* d */
2115
2116 if (size_only) {
2117 return buflen;
2118 }
2119
2120 /* malloc the space needed */
2121 if ( (*buf=(uint8*)malloc(len)) == NULL) {
2122 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2123 return (-1);
2124 }
2125
2126 /* now for the real call to tdb_pack() */
2127 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
2128 logon_time, /* d */
2129 logoff_time, /* d */
2130 kickoff_time, /* d */
2131 bad_password_time, /* d */
2132 pass_last_set_time, /* d */
2133 pass_can_change_time, /* d */
2134 pass_must_change_time, /* d */
2135 username_len, username, /* B */
2136 domain_len, domain, /* B */
2137 nt_username_len, nt_username, /* B */
2138 fullname_len, fullname, /* B */
2139 homedir_len, homedir, /* B */
2140 dir_drive_len, dir_drive, /* B */
2141 logon_script_len, logon_script, /* B */
2142 profile_path_len, profile_path, /* B */
2143 acct_desc_len, acct_desc, /* B */
2144 workstations_len, workstations, /* B */
2145 unknown_str_len, unknown_str, /* B */
2146 munged_dial_len, munged_dial, /* B */
2147 user_rid, /* d */
2148 group_rid, /* d */
2149 lm_pw_len, lm_pw, /* B */
2150 nt_pw_len, nt_pw, /* B */
2151 nt_pw_hist_len, nt_pw_hist, /* B */
2152 pdb_get_acct_ctrl(sampass), /* w */
2153 pdb_get_logon_divs(sampass), /* w */
2154 pdb_get_hours_len(sampass), /* d */
2155 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2156 pdb_get_bad_password_count(sampass), /* w */
2157 pdb_get_logon_count(sampass), /* w */
2158 pdb_get_unknown_6(sampass)); /* d */
2159
2160 /* check to make sure we got it correct */
2161 if (buflen != len) {
2162 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2163 (unsigned long)buflen, (unsigned long)len));
2164 /* error */
2165 SAFE_FREE (*buf);
2166 return (-1);
2167 }
2168
2169 return (buflen);
2170 }
2171
2172 /**********************************************************************
2173 **********************************************************************/
2174
2175 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2176 {
2177 uid_t u_low, u_high;
2178 gid_t g_low, g_high;
2179
2180 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2181 return False;
2182 }
2183
2184 *low = (u_low < g_low) ? u_low : g_low;
2185 *high = (u_high < g_high) ? u_high : g_high;
2186
2187 return True;
2188 }
2189
2190 /******************************************************************
2191 Get the the non-algorithmic RID range if idmap range are defined
2192 ******************************************************************/
2193
2194 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2195 {
2196 uint32 id_low, id_high;
2197
2198 if (!lp_enable_rid_algorithm()) {
2199 *low = BASE_RID;
2200 *high = (uint32)-1;
2201 }
2202
2203 if (!get_free_ugid_range(&id_low, &id_high)) {
2204 return False;
2205 }
2206
2207 *low = fallback_pdb_uid_to_user_rid(id_low);
2208 if (fallback_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2209 *high = (uint32)-1;
2210 } else {
2211 *high = fallback_pdb_uid_to_user_rid(id_high);
2212 }
2213
2214 return True;
2215 }
2216
2217 /*********************************************************************
2218 Update the bad password count checking the AP_RESET_COUNT_TIME
2219 *********************************************************************/
2220
2221 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2222 {
2223 time_t LastBadPassword;
2224 uint16 BadPasswordCount;
2225 uint32 resettime;
2226
2227 if (!sampass) return False;
2228
2229 BadPasswordCount = pdb_get_bad_password_count(sampass);
2230 if (!BadPasswordCount) {
2231 DEBUG(9, ("No bad password attempts.\n"));
2232 return True;
2233 }
2234
2235 if (!account_policy_get(AP_RESET_COUNT_TIME, &resettime)) {
2236 DEBUG(0, ("pdb_update_bad_password_count: account_policy_get failed.\n"));
2237 return False;
2238 }
2239
2240 /* First, check if there is a reset time to compare */
2241 if ((resettime == (uint32) -1) || (resettime == 0)) {
2242 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2243 return True;
2244 }
2245
2246 LastBadPassword = pdb_get_bad_password_time(sampass);
2247 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2248 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2249 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2250 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2251 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2252 if (updated) {
2253 *updated = True;
2254 }
2255 }
2256
2257 return True;
2258 }
2259
2260 /*********************************************************************
2261 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2262 *********************************************************************/
2263
2264 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2265 {
2266 uint32 duration;
2267 time_t LastBadPassword;
2268
2269 if (!sampass) return False;
2270
2271 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2272 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2273 pdb_get_username(sampass)));
2274 return True;
2275 }
2276
2277 if (!account_policy_get(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2278 DEBUG(0, ("pdb_update_autolock_flag: account_policy_get failed.\n"));
2279 return False;
2280 }
2281
2282 /* First, check if there is a duration to compare */
2283 if ((duration == (uint32) -1) || (duration == 0)) {
2284 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2285 return True;
2286 }
2287
2288 LastBadPassword = pdb_get_bad_password_time(sampass);
2289 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2290 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2291
2292 if (LastBadPassword == (time_t)0) {
2293 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2294 bad password time. Leaving locked out.\n",
2295 pdb_get_username(sampass) ));
2296 return True;
2297 }
2298
2299 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2300 pdb_set_acct_ctrl(sampass,
2301 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2302 PDB_CHANGED);
2303 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2304 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2305 if (updated) {
2306 *updated = True;
2307 }
2308 }
2309
2310 return True;
2311 }
2312
2313 /*********************************************************************
2314 Increment the bad_password_count
2315 *********************************************************************/
2316
2317 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2318 {
2319 uint32 account_policy_lockout;
2320 BOOL autolock_updated = False, badpw_updated = False;
2321
2322 if (!sampass)
2323 return False;
2324
2325 /* Retrieve the account lockout policy */
2326 if (!account_policy_get(AP_BAD_ATTEMPT_LOCKOUT,
2327 &account_policy_lockout)) {
2328 DEBUG(0, ("pdb_increment_bad_password_count: account_policy_get failed.\n"));
2329 return False;
2330 }
2331
2332 /* If there is no policy, we don't need to continue checking */
2333 if (!account_policy_lockout) {
2334 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2335 return True;
2336 }
2337
2338 /* Check if the autolock needs to be cleared */
2339 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2340 return False;
2341
2342 /* Check if the badpw count needs to be reset */
2343 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2344 return False;
2345
2346 /*
2347 Ok, now we can assume that any resetting that needs to be
2348 done has been done, and just get on with incrementing
2349 and autolocking if necessary
2350 */
2351
2352 pdb_set_bad_password_count(sampass,
2353 pdb_get_bad_password_count(sampass)+1,
2354 PDB_CHANGED);
2355 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2356
2357
2358 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2359 return True;
2360
2361 if (!pdb_set_acct_ctrl(sampass,
2362 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2363 PDB_CHANGED)) {
2364 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2365 return False;
2366 }
2367
2368 return True;
2369 }
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