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r10656: BIG merge from trunk. Features not copied over
[Samba/nascimento.git] / source3 / passdb / passdb.c
bloba7ff3a04f7e8939f755afc1ada7f19cce1601c17
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_u); /* 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_u.logon_time = (time_t)0;
64 user->private_u.pass_last_set_time = (time_t)0;
65 user->private_u.pass_can_change_time = (time_t)0;
66 user->private_u.logoff_time =
67 user->private_u.kickoff_time =
68 user->private_u.pass_must_change_time = get_time_t_max();
69 user->private_u.fields_present = 0x00ffffff;
70 user->private_u.logon_divs = 168; /* hours per week */
71 user->private_u.hours_len = 21; /* 21 times 8 bits = 168 */
72 memset(user->private_u.hours, 0xff, user->private_u.hours_len); /* available at all hours */
73 user->private_u.bad_password_count = 0;
74 user->private_u.logon_count = 0;
75 user->private_u.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_u.username = "";
81 user->private_u.domain = "";
82 user->private_u.nt_username = "";
83 user->private_u.full_name = "";
84 user->private_u.home_dir = "";
85 user->private_u.logon_script = "";
86 user->private_u.profile_path = "";
87 user->private_u.acct_desc = "";
88 user->private_u.workstations = "";
89 user->private_u.unknown_str = "";
90 user->private_u.munged_dial = "";
91
92 user->private_u.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_u.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_u.lm_pw));
107 data_blob_clear_free(&((*user)->private_u.nt_pw));
108
109 if((*user)->private_u.plaintext_pw!=NULL)
110 memset((*user)->private_u.plaintext_pw,'\0',strlen((*user)->private_u.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=TALLOC_P(mem_ctx, 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, algorithmic_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 = algorithmic_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_u.lm_pw));
400 data_blob_clear_free(&(user->private_u.nt_pw));
401 if (user->private_u.plaintext_pw!=NULL)
402 memset(user->private_u.plaintext_pw,'\0',strlen(user->private_u.plaintext_pw));
403
404 if (user->private_u.backend_private_data && user->private_u.backend_private_data_free_fn) {
405 user->private_u.backend_private_data_free_fn(&user->private_u.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 /*************************************************************
587 Routine to set 42 hex hours characters from a 21 byte array.
588 **************************************************************/
589
590 void pdb_sethexhours(char *p, const unsigned char *hours)
591 {
592 if (hours != NULL) {
593 int i;
594 for (i = 0; i < 21; i++) {
595 slprintf(&p[i*2], 3, "%02X", hours[i]);
596 }
597 } else {
598 safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
599 }
600 }
601
602 /*************************************************************
603 Routine to get the 42 hex characters and turn them
604 into a 21 byte array.
605 **************************************************************/
606
607 BOOL pdb_gethexhours(const char *p, unsigned char *hours)
608 {
609 int i;
610 unsigned char lonybble, hinybble;
611 const char *hexchars = "0123456789ABCDEF";
612 char *p1, *p2;
613
614 if (!p) {
615 return (False);
616 }
617
618 for (i = 0; i < 42; i += 2) {
619 hinybble = toupper(p[i]);
620 lonybble = toupper(p[i + 1]);
621
622 p1 = strchr(hexchars, hinybble);
623 p2 = strchr(hexchars, lonybble);
624
625 if (!p1 || !p2) {
626 return (False);
627 }
628
629 hinybble = PTR_DIFF(p1, hexchars);
630 lonybble = PTR_DIFF(p2, hexchars);
631
632 hours[i / 2] = (hinybble << 4) | lonybble;
633 }
634 return (True);
635 }
636
637 int algorithmic_rid_base(void)
638 {
639 static int rid_offset = 0;
640
641 if (rid_offset != 0)
642 return rid_offset;
643
644 rid_offset = lp_algorithmic_rid_base();
645
646 if (rid_offset < BASE_RID) {
647 /* Try to prevent admin foot-shooting, we can't put algorithmic
648 rids below 1000, that's the 'well known RIDs' on NT */
649 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
650 rid_offset = BASE_RID;
651 }
652 if (rid_offset & 1) {
653 DEBUG(0, ("algorithmic rid base must be even\n"));
654 rid_offset += 1;
655 }
656 return rid_offset;
657 }
658
659 /*******************************************************************
660 Converts NT user RID to a UNIX uid.
661 ********************************************************************/
662
663 uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
664 {
665 int rid_offset = algorithmic_rid_base();
666 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
667 }
668
669 /*******************************************************************
670 converts UNIX uid to an NT User RID.
671 ********************************************************************/
672
673 uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
674 {
675 int rid_offset = algorithmic_rid_base();
676 return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
677 }
678
679 /*******************************************************************
680 Converts NT group RID to a UNIX gid.
681 ********************************************************************/
682
683 gid_t pdb_group_rid_to_gid(uint32 group_rid)
684 {
685 int rid_offset = algorithmic_rid_base();
686 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
687 }
688
689 /*******************************************************************
690 converts NT Group RID to a UNIX uid.
691
692 warning: you must not call that function only
693 you must do a call to the group mapping first.
694 there is not anymore a direct link between the gid and the rid.
695 ********************************************************************/
696
697 uint32 pdb_gid_to_group_rid(gid_t gid)
698 {
699 int rid_offset = algorithmic_rid_base();
700 return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
701 }
702
703 /*******************************************************************
704 Decides if a RID is a well known RID.
705 ********************************************************************/
706
707 static BOOL pdb_rid_is_well_known(uint32 rid)
708 {
709 /* Not using rid_offset here, because this is the actual
710 NT fixed value (1000) */
711
712 return (rid < BASE_RID);
713 }
714
715 /*******************************************************************
716 Decides if a RID is a user or group RID.
717 ********************************************************************/
718
719 BOOL algorithmic_pdb_rid_is_user(uint32 rid)
720 {
721 if(pdb_rid_is_well_known(rid)) {
722 /*
723 * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
724 * and DOMAIN_USER_RID_GUEST.
725 */
726 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
727 return True;
728 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
729 return True;
730 }
731 return False;
732 }
733
734 /*******************************************************************
735 Convert a rid into a name. Used in the lookup SID rpc.
736 ********************************************************************/
737
738 BOOL local_lookup_sid(const DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
739 {
740 uint32 rid;
741 SAM_ACCOUNT *sam_account = NULL;
742 GROUP_MAP map;
743 BOOL ret;
744
745 if (sid_equal(get_global_sam_sid(), sid)) {
746 *psid_name_use = SID_NAME_DOMAIN;
747 fstrcpy(name, "");
748 DEBUG(5,("local_lookup_sid: SID is our own domain-sid: %s.\n",
749 sid_string_static(sid)));
750 return True;
751 }
752
753 if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)){
754 DEBUG(0,("local_lookup_sid: sid_peek_check_rid return False! SID: %s\n",
755 sid_string_static(&map.sid)));
756 return False;
757 }
758 *psid_name_use = SID_NAME_UNKNOWN;
759
760 DEBUG(5,("local_lookup_sid: looking up RID %u.\n", (unsigned int)rid));
761
762
763 /* see if the passdb can help us with the name of the user */
764 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
765 return False;
766 }
767
768 /* BEING ROOT BLLOCK */
769 become_root();
770 if (pdb_getsampwsid(sam_account, sid)) {
771 unbecome_root(); /* -----> EXIT BECOME_ROOT() */
772 fstrcpy(name, pdb_get_username(sam_account));
773 *psid_name_use = SID_NAME_USER;
774
775 pdb_free_sam(&sam_account);
776
777 return True;
778 }
779 pdb_free_sam(&sam_account);
780
781 ret = pdb_getgrsid(&map, *sid);
782 unbecome_root();
783 /* END BECOME_ROOT BLOCK */
784
785 if ( ret ) {
786 if (map.gid!=(gid_t)-1) {
787 DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
788 } else {
789 DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid. Returning name.\n", map.nt_name));
790 }
791
792 fstrcpy(name, map.nt_name);
793 *psid_name_use = map.sid_name_use;
794 return True;
795 }
796
797 if (rid == DOMAIN_USER_RID_ADMIN) {
798 *psid_name_use = SID_NAME_USER;
799 fstrcpy(name, "Administrator");
800 return True;
801 }
802
803 if (algorithmic_pdb_rid_is_user(rid)) {
804 uid_t uid;
805 struct passwd *pw = NULL;
806
807 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
808
809 uid = algorithmic_pdb_user_rid_to_uid(rid);
810 pw = sys_getpwuid( uid );
811
812 DEBUG(5,("local_lookup_sid: looking up uid %u %s\n", (unsigned int)uid,
813 pw ? "succeeded" : "failed" ));
814
815 if ( !pw )
816 fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
817 else
818 fstrcpy( name, pw->pw_name );
819
820 DEBUG(5,("local_lookup_sid: found user %s for rid %u\n", name,
821 (unsigned int)rid ));
822
823 *psid_name_use = SID_NAME_USER;
824
825 return ( pw != NULL );
826 } else {
827 gid_t gid;
828 struct group *gr;
829
830 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
831
832 gid = pdb_group_rid_to_gid(rid);
833 gr = getgrgid(gid);
834
835 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
836 gr ? "succeeded" : "failed" ));
837
838 if( !gr )
839 fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
840 else
841 fstrcpy( name, gr->gr_name);
842
843 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
844 (unsigned int)rid ));
845
846 /* assume algorithmic groups are domain global groups */
847
848 *psid_name_use = SID_NAME_DOM_GRP;
849
850 return ( gr != NULL );
851 }
852 }
853
854 /*******************************************************************
855 Convert a name into a SID. Used in the lookup name rpc.
856 ********************************************************************/
857
858 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
859 {
860 DOM_SID local_sid;
861 DOM_SID sid;
862 fstring user;
863 SAM_ACCOUNT *sam_account = NULL;
864 struct group *grp;
865 GROUP_MAP map;
866
867 *psid_name_use = SID_NAME_UNKNOWN;
868
869 /*
870 * user may be quoted a const string, and map_username and
871 * friends can modify it. Make a modifiable copy. JRA.
872 */
873
874 fstrcpy(user, c_user);
875
876 sid_copy(&local_sid, get_global_sam_sid());
877
878 if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
879 fstring sid_str;
880 sid_copy( psid, &sid);
881 sid_to_string(sid_str, &sid);
882 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
883 (unsigned int)*psid_name_use ));
884 return True;
885 }
886
887 (void)map_username(user);
888
889 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
890 return False;
891 }
892
893 /* BEGIN ROOT BLOCK */
894
895 become_root();
896 if (pdb_getsampwnam(sam_account, user)) {
897 unbecome_root();
898 sid_copy(psid, pdb_get_user_sid(sam_account));
899 *psid_name_use = SID_NAME_USER;
900
901 pdb_free_sam(&sam_account);
902 return True;
903 }
904
905 pdb_free_sam(&sam_account);
906
907 /*
908 * Maybe it was a group ?
909 */
910
911 /* check if it's a mapped group */
912 if (pdb_getgrnam(&map, user)) {
913 /* yes it's a mapped group */
914 sid_copy(&local_sid, &map.sid);
915 *psid_name_use = map.sid_name_use;
916 } else {
917 /* it's not a mapped group */
918 grp = getgrnam(user);
919 if(!grp) {
920 unbecome_root(); /* ---> exit form block */
921 return False;
922 }
923
924 /*
925 *check if it's mapped, if it is reply it doesn't exist
926 *
927 * that's to prevent this case:
928 *
929 * unix group ug is mapped to nt group ng
930 * someone does a lookup on ug
931 * we must not reply as it doesn't "exist" anymore
932 * for NT. For NT only ng exists.
933 * JFM, 30/11/2001
934 */
935
936 if (pdb_getgrgid(&map, grp->gr_gid)){
937 unbecome_root(); /* ---> exit form block */
938 return False;
939 }
940
941 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
942 *psid_name_use = SID_NAME_ALIAS;
943 }
944 unbecome_root();
945 /* END ROOT BLOCK */
946
947 sid_copy( psid, &local_sid);
948
949 return True;
950 }
951
952 /*************************************************************
953 Change a password entry in the local smbpasswd file.
954 *************************************************************/
955
956 BOOL local_password_change(const char *user_name, int local_flags,
957 const char *new_passwd,
958 char *err_str, size_t err_str_len,
959 char *msg_str, size_t msg_str_len)
960 {
961 SAM_ACCOUNT *sam_pass=NULL;
962 uint16 other_acb;
963
964 *err_str = '\0';
965 *msg_str = '\0';
966
967 /* Get the smb passwd entry for this user */
968 pdb_init_sam(&sam_pass);
969
970 become_root();
971 if(!pdb_getsampwnam(sam_pass, user_name)) {
972 unbecome_root();
973 pdb_free_sam(&sam_pass);
974
975 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
976 /* Might not exist in /etc/passwd. Use rid algorithm here */
977 if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
978 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);
979 return False;
980 }
981 } else {
982 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
983 return False;
984 }
985 } else {
986 unbecome_root();
987 /* the entry already existed */
988 local_flags &= ~LOCAL_ADD_USER;
989 }
990
991 /* the 'other' acb bits not being changed here */
992 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
993 if (local_flags & LOCAL_TRUST_ACCOUNT) {
994 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
995 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
996 pdb_free_sam(&sam_pass);
997 return False;
998 }
999 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
1000 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
1001 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
1002 pdb_free_sam(&sam_pass);
1003 return False;
1004 }
1005 } else {
1006 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1007 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1008 pdb_free_sam(&sam_pass);
1009 return False;
1010 }
1011 }
1012
1013 /*
1014 * We are root - just write the new password
1015 * and the valid last change time.
1016 */
1017
1018 if (local_flags & LOCAL_DISABLE_USER) {
1019 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1020 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1021 pdb_free_sam(&sam_pass);
1022 return False;
1023 }
1024 } else if (local_flags & LOCAL_ENABLE_USER) {
1025 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1026 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1027 pdb_free_sam(&sam_pass);
1028 return False;
1029 }
1030 }
1031
1032 if (local_flags & LOCAL_SET_NO_PASSWORD) {
1033 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1034 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1035 pdb_free_sam(&sam_pass);
1036 return False;
1037 }
1038 } else if (local_flags & LOCAL_SET_PASSWORD) {
1039 /*
1040 * If we're dealing with setting a completely empty user account
1041 * ie. One with a password of 'XXXX', but not set disabled (like
1042 * an account created from scratch) then if the old password was
1043 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1044 * We remove that as we're giving this user their first password
1045 * and the decision hasn't really been made to disable them (ie.
1046 * don't create them disabled). JRA.
1047 */
1048 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1049 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1050 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1051 pdb_free_sam(&sam_pass);
1052 return False;
1053 }
1054 }
1055 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1056 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1057 pdb_free_sam(&sam_pass);
1058 return False;
1059 }
1060
1061 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1062 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1063 pdb_free_sam(&sam_pass);
1064 return False;
1065 }
1066 }
1067
1068 if (local_flags & LOCAL_ADD_USER) {
1069 if (pdb_add_sam_account(sam_pass)) {
1070 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1071 pdb_free_sam(&sam_pass);
1072 return True;
1073 } else {
1074 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1075 pdb_free_sam(&sam_pass);
1076 return False;
1077 }
1078 } else if (local_flags & LOCAL_DELETE_USER) {
1079 if (!pdb_delete_sam_account(sam_pass)) {
1080 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1081 pdb_free_sam(&sam_pass);
1082 return False;
1083 }
1084 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1085 } else {
1086 if(!pdb_update_sam_account(sam_pass)) {
1087 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1088 pdb_free_sam(&sam_pass);
1089 return False;
1090 }
1091 if(local_flags & LOCAL_DISABLE_USER)
1092 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1093 else if (local_flags & LOCAL_ENABLE_USER)
1094 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1095 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1096 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1097 }
1098
1099 pdb_free_sam(&sam_pass);
1100 return True;
1101 }
1102
1103 /****************************************************************************
1104 Convert a uid to SID - algorithmic.
1105 ****************************************************************************/
1106
1107 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1108 {
1109 if ( !lp_enable_rid_algorithm() )
1110 return NULL;
1111
1112 DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1113 sid_copy( psid, get_global_sam_sid() );
1114 sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
1115 DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
1116 (unsigned int)uid, sid_string_static(psid) ));
1117
1118 return psid;
1119 }
1120
1121 /****************************************************************************
1122 Convert a uid to SID - locally.
1123 ****************************************************************************/
1124
1125 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1126 {
1127 SAM_ACCOUNT *sampw = NULL;
1128 struct passwd *unix_pw;
1129 BOOL ret;
1130
1131 unix_pw = sys_getpwuid( uid );
1132
1133 if ( !unix_pw ) {
1134 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1135 return algorithmic_uid_to_sid( psid, uid);
1136 }
1137
1138 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1139 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1140 return NULL;
1141 }
1142
1143 become_root();
1144 ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1145 unbecome_root();
1146
1147 if ( ret )
1148 sid_copy( psid, pdb_get_user_sid(sampw) );
1149 else {
1150 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1151 unix_pw->pw_name, (unsigned long)uid));
1152
1153 algorithmic_uid_to_sid( psid, uid);
1154 }
1155
1156 pdb_free_sam(&sampw);
1157
1158 DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
1159 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1160
1161 return psid;
1162 }
1163
1164 /****************************************************************************
1165 Convert a SID to uid - locally.
1166 ****************************************************************************/
1167
1168 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1169 {
1170 SAM_ACCOUNT *sampw = NULL;
1171 struct passwd *unix_pw;
1172 const char *user_name;
1173
1174 *name_type = SID_NAME_UNKNOWN;
1175
1176 /*
1177 * We can only convert to a uid if this is our local
1178 * Domain SID (ie. we are the controling authority).
1179 */
1180 if (!sid_check_is_in_our_domain(psid) ) {
1181 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1182 return False;
1183 }
1184
1185 /* lookup the user account */
1186
1187 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1188 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1189 return False;
1190 }
1191
1192 become_root();
1193 if ( !pdb_getsampwsid(sampw, psid) ) {
1194 unbecome_root();
1195 pdb_free_sam(&sampw);
1196 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1197 sid_string_static(psid)));
1198 return False;
1199 }
1200 unbecome_root();
1201
1202 user_name = pdb_get_username(sampw);
1203
1204 unix_pw = sys_getpwnam( user_name );
1205
1206 if ( !unix_pw ) {
1207 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1208 user_name));
1209 pdb_free_sam( &sampw );
1210 return False;
1211 }
1212
1213 *puid = unix_pw->pw_uid;
1214
1215 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1216 (unsigned int)*puid, user_name ));
1217
1218 *name_type = SID_NAME_USER;
1219 pdb_free_sam( &sampw );
1220 return True;
1221 }
1222
1223 /****************************************************************************
1224 Convert a gid to SID - locally.
1225 ****************************************************************************/
1226
1227 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1228 {
1229 GROUP_MAP group;
1230 BOOL ret;
1231
1232 /* we don't need to disable winbindd since the gid is stored in
1233 the GROUP_MAP object */
1234
1235 /* done as root since ldap backend requires root to open a connection */
1236
1237 become_root();
1238 ret = pdb_getgrgid( &group, gid );
1239 unbecome_root();
1240
1241 if ( !ret ) {
1242
1243 /* fallback to rid mapping if enabled */
1244
1245 if ( lp_enable_rid_algorithm() ) {
1246 sid_copy(psid, get_global_sam_sid());
1247 sid_append_rid(psid, pdb_gid_to_group_rid(gid));
1248
1249 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1250 (unsigned int)gid, sid_string_static(psid)));
1251
1252 return psid;
1253 }
1254 else
1255 return NULL;
1256 }
1257
1258 sid_copy( psid, &group.sid );
1259
1260 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1261 (unsigned int)gid, sid_string_static(psid)));
1262
1263 return psid;
1264 }
1265
1266 /****************************************************************************
1267 Convert a SID to gid - locally.
1268 ****************************************************************************/
1269
1270 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1271 {
1272 uint32 rid;
1273 GROUP_MAP group;
1274 BOOL ret;
1275
1276 *name_type = SID_NAME_UNKNOWN;
1277
1278 /* This call can enumerate group mappings for foreign sids as well.
1279 So don't check for a match against our domain SID */
1280
1281 /* we don't need to disable winbindd since the gid is stored in
1282 the GROUP_MAP object */
1283
1284 become_root();
1285 ret = pdb_getgrsid(&group, *psid);
1286 unbecome_root();
1287
1288 if ( !ret ) {
1289
1290 /* Fallback to algorithmic rid mapping if enabled */
1291
1292 if ( lp_enable_rid_algorithm() ) {
1293
1294 if (!sid_check_is_in_our_domain(psid) ) {
1295 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1296 return False;
1297 }
1298
1299 if (!sid_peek_rid(psid, &rid)) {
1300 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1301 return False;
1302 }
1303
1304 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1305
1306 if (algorithmic_pdb_rid_is_user(rid)) {
1307 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1308 return False;
1309 } else {
1310 *pgid = pdb_group_rid_to_gid(rid);
1311 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1312 return True;
1313 }
1314 }
1315
1316 return False;
1317 }
1318
1319 *pgid = group.gid;
1320 *name_type = group.sid_name_use;
1321
1322 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1323 (unsigned int)*pgid));
1324
1325 return True;
1326 }
1327
1328 /**********************************************************************
1329 Marshall/unmarshall SAM_ACCOUNT structs.
1330 *********************************************************************/
1331
1332 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1333 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1334 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1335
1336 /**********************************************************************
1337 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1338 *********************************************************************/
1339
1340 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1341 {
1342 return(init_sam_from_buffer_v2(sampass, buf, buflen));
1343 }
1344
1345 /**********************************************************************
1346 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1347 *********************************************************************/
1348
1349 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1350 {
1351 return(init_buffer_from_sam_v2(buf, sampass, size_only));
1352 }
1353
1354
1355 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1356 {
1357
1358 /* times are stored as 32bit integer
1359 take care on system with 64bit wide time_t
1360 --SSS */
1361 uint32 logon_time,
1362 logoff_time,
1363 kickoff_time,
1364 pass_last_set_time,
1365 pass_can_change_time,
1366 pass_must_change_time;
1367 char *username = NULL;
1368 char *domain = NULL;
1369 char *nt_username = NULL;
1370 char *dir_drive = NULL;
1371 char *unknown_str = NULL;
1372 char *munged_dial = NULL;
1373 char *fullname = NULL;
1374 char *homedir = NULL;
1375 char *logon_script = NULL;
1376 char *profile_path = NULL;
1377 char *acct_desc = NULL;
1378 char *workstations = NULL;
1379 uint32 username_len, domain_len, nt_username_len,
1380 dir_drive_len, unknown_str_len, munged_dial_len,
1381 fullname_len, homedir_len, logon_script_len,
1382 profile_path_len, acct_desc_len, workstations_len;
1383
1384 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1385 uint16 acct_ctrl, logon_divs;
1386 uint16 bad_password_count, logon_count;
1387 uint8 *hours = NULL;
1388 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1389 uint32 len = 0;
1390 uint32 lm_pw_len, nt_pw_len, hourslen;
1391 BOOL ret = True;
1392
1393 if(sampass == NULL || buf == NULL) {
1394 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1395 return False;
1396 }
1397
1398 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1399
1400 /* unpack the buffer into variables */
1401 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1402 &logon_time, /* d */
1403 &logoff_time, /* d */
1404 &kickoff_time, /* d */
1405 &pass_last_set_time, /* d */
1406 &pass_can_change_time, /* d */
1407 &pass_must_change_time, /* d */
1408 &username_len, &username, /* B */
1409 &domain_len, &domain, /* B */
1410 &nt_username_len, &nt_username, /* B */
1411 &fullname_len, &fullname, /* B */
1412 &homedir_len, &homedir, /* B */
1413 &dir_drive_len, &dir_drive, /* B */
1414 &logon_script_len, &logon_script, /* B */
1415 &profile_path_len, &profile_path, /* B */
1416 &acct_desc_len, &acct_desc, /* B */
1417 &workstations_len, &workstations, /* B */
1418 &unknown_str_len, &unknown_str, /* B */
1419 &munged_dial_len, &munged_dial, /* B */
1420 &user_rid, /* d */
1421 &group_rid, /* d */
1422 &lm_pw_len, &lm_pw_ptr, /* B */
1423 &nt_pw_len, &nt_pw_ptr, /* B */
1424 &acct_ctrl, /* w */
1425 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1426 &logon_divs, /* w */
1427 &hours_len, /* d */
1428 &hourslen, &hours, /* B */
1429 &bad_password_count, /* w */
1430 &logon_count, /* w */
1431 &unknown_6); /* d */
1432
1433 if (len == (uint32) -1) {
1434 ret = False;
1435 goto done;
1436 }
1437
1438 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1439 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1440 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1441 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1442 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1443 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1444
1445 pdb_set_username(sampass, username, PDB_SET);
1446 pdb_set_domain(sampass, domain, PDB_SET);
1447 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1448 pdb_set_fullname(sampass, fullname, PDB_SET);
1449
1450 if (homedir) {
1451 pdb_set_homedir(sampass, homedir, PDB_SET);
1452 }
1453 else {
1454 pdb_set_homedir(sampass,
1455 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1456 PDB_DEFAULT);
1457 }
1458
1459 if (dir_drive)
1460 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1461 else {
1462 pdb_set_dir_drive(sampass,
1463 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1464 PDB_DEFAULT);
1465 }
1466
1467 if (logon_script)
1468 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1469 else {
1470 pdb_set_logon_script(sampass,
1471 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1472 PDB_DEFAULT);
1473 }
1474
1475 if (profile_path) {
1476 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1477 } else {
1478 pdb_set_profile_path(sampass,
1479 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1480 PDB_DEFAULT);
1481 }
1482
1483 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1484 pdb_set_workstations(sampass, workstations, PDB_SET);
1485 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1486
1487 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1488 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1489 ret = False;
1490 goto done;
1491 }
1492 }
1493
1494 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1495 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1496 ret = False;
1497 goto done;
1498 }
1499 }
1500
1501 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1502 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1503 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1504 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1505 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1506 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1507 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1508 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1509 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1510 pdb_set_hours(sampass, hours, PDB_SET);
1511
1512 done:
1513
1514 SAFE_FREE(username);
1515 SAFE_FREE(domain);
1516 SAFE_FREE(nt_username);
1517 SAFE_FREE(fullname);
1518 SAFE_FREE(homedir);
1519 SAFE_FREE(dir_drive);
1520 SAFE_FREE(logon_script);
1521 SAFE_FREE(profile_path);
1522 SAFE_FREE(acct_desc);
1523 SAFE_FREE(workstations);
1524 SAFE_FREE(munged_dial);
1525 SAFE_FREE(unknown_str);
1526 SAFE_FREE(lm_pw_ptr);
1527 SAFE_FREE(nt_pw_ptr);
1528 SAFE_FREE(hours);
1529
1530 return ret;
1531 }
1532
1533 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1534 {
1535
1536 /* times are stored as 32bit integer
1537 take care on system with 64bit wide time_t
1538 --SSS */
1539 uint32 logon_time,
1540 logoff_time,
1541 kickoff_time,
1542 bad_password_time,
1543 pass_last_set_time,
1544 pass_can_change_time,
1545 pass_must_change_time;
1546 char *username = NULL;
1547 char *domain = NULL;
1548 char *nt_username = NULL;
1549 char *dir_drive = NULL;
1550 char *unknown_str = NULL;
1551 char *munged_dial = NULL;
1552 char *fullname = NULL;
1553 char *homedir = NULL;
1554 char *logon_script = NULL;
1555 char *profile_path = NULL;
1556 char *acct_desc = NULL;
1557 char *workstations = NULL;
1558 uint32 username_len, domain_len, nt_username_len,
1559 dir_drive_len, unknown_str_len, munged_dial_len,
1560 fullname_len, homedir_len, logon_script_len,
1561 profile_path_len, acct_desc_len, workstations_len;
1562
1563 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1564 uint16 acct_ctrl, logon_divs;
1565 uint16 bad_password_count, logon_count;
1566 uint8 *hours = NULL;
1567 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1568 uint32 len = 0;
1569 uint32 lm_pw_len, nt_pw_len, hourslen;
1570 BOOL ret = True;
1571
1572 if(sampass == NULL || buf == NULL) {
1573 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1574 return False;
1575 }
1576
1577 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1578
1579 /* unpack the buffer into variables */
1580 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1581 &logon_time, /* d */
1582 &logoff_time, /* d */
1583 &kickoff_time, /* d */
1584 /* Change from V0 is addition of bad_password_time field. */
1585 &bad_password_time, /* d */
1586 &pass_last_set_time, /* d */
1587 &pass_can_change_time, /* d */
1588 &pass_must_change_time, /* d */
1589 &username_len, &username, /* B */
1590 &domain_len, &domain, /* B */
1591 &nt_username_len, &nt_username, /* B */
1592 &fullname_len, &fullname, /* B */
1593 &homedir_len, &homedir, /* B */
1594 &dir_drive_len, &dir_drive, /* B */
1595 &logon_script_len, &logon_script, /* B */
1596 &profile_path_len, &profile_path, /* B */
1597 &acct_desc_len, &acct_desc, /* B */
1598 &workstations_len, &workstations, /* B */
1599 &unknown_str_len, &unknown_str, /* B */
1600 &munged_dial_len, &munged_dial, /* B */
1601 &user_rid, /* d */
1602 &group_rid, /* d */
1603 &lm_pw_len, &lm_pw_ptr, /* B */
1604 &nt_pw_len, &nt_pw_ptr, /* B */
1605 &acct_ctrl, /* w */
1606 &remove_me, /* d */
1607 &logon_divs, /* w */
1608 &hours_len, /* d */
1609 &hourslen, &hours, /* B */
1610 &bad_password_count, /* w */
1611 &logon_count, /* w */
1612 &unknown_6); /* d */
1613
1614 if (len == (uint32) -1) {
1615 ret = False;
1616 goto done;
1617 }
1618
1619 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1620 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1621 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1622
1623 /* Change from V0 is addition of bad_password_time field. */
1624 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1625 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1626 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1627 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1628
1629 pdb_set_username(sampass, username, PDB_SET);
1630 pdb_set_domain(sampass, domain, PDB_SET);
1631 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1632 pdb_set_fullname(sampass, fullname, PDB_SET);
1633
1634 if (homedir) {
1635 pdb_set_homedir(sampass, homedir, PDB_SET);
1636 }
1637 else {
1638 pdb_set_homedir(sampass,
1639 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1640 PDB_DEFAULT);
1641 }
1642
1643 if (dir_drive)
1644 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1645 else {
1646 pdb_set_dir_drive(sampass,
1647 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1648 PDB_DEFAULT);
1649 }
1650
1651 if (logon_script)
1652 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1653 else {
1654 pdb_set_logon_script(sampass,
1655 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1656 PDB_DEFAULT);
1657 }
1658
1659 if (profile_path) {
1660 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1661 } else {
1662 pdb_set_profile_path(sampass,
1663 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1664 PDB_DEFAULT);
1665 }
1666
1667 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1668 pdb_set_workstations(sampass, workstations, PDB_SET);
1669 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1670
1671 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1672 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1673 ret = False;
1674 goto done;
1675 }
1676 }
1677
1678 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1679 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1680 ret = False;
1681 goto done;
1682 }
1683 }
1684
1685 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1686
1687 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1688 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1689 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1690 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1691 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1692 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1693 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1694 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1695 pdb_set_hours(sampass, hours, PDB_SET);
1696
1697 done:
1698
1699 SAFE_FREE(username);
1700 SAFE_FREE(domain);
1701 SAFE_FREE(nt_username);
1702 SAFE_FREE(fullname);
1703 SAFE_FREE(homedir);
1704 SAFE_FREE(dir_drive);
1705 SAFE_FREE(logon_script);
1706 SAFE_FREE(profile_path);
1707 SAFE_FREE(acct_desc);
1708 SAFE_FREE(workstations);
1709 SAFE_FREE(munged_dial);
1710 SAFE_FREE(unknown_str);
1711 SAFE_FREE(lm_pw_ptr);
1712 SAFE_FREE(nt_pw_ptr);
1713 SAFE_FREE(hours);
1714
1715 return ret;
1716 }
1717
1718
1719 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1720 {
1721
1722 /* times are stored as 32bit integer
1723 take care on system with 64bit wide time_t
1724 --SSS */
1725 uint32 logon_time,
1726 logoff_time,
1727 kickoff_time,
1728 bad_password_time,
1729 pass_last_set_time,
1730 pass_can_change_time,
1731 pass_must_change_time;
1732 char *username = NULL;
1733 char *domain = NULL;
1734 char *nt_username = NULL;
1735 char *dir_drive = NULL;
1736 char *unknown_str = NULL;
1737 char *munged_dial = NULL;
1738 char *fullname = NULL;
1739 char *homedir = NULL;
1740 char *logon_script = NULL;
1741 char *profile_path = NULL;
1742 char *acct_desc = NULL;
1743 char *workstations = NULL;
1744 uint32 username_len, domain_len, nt_username_len,
1745 dir_drive_len, unknown_str_len, munged_dial_len,
1746 fullname_len, homedir_len, logon_script_len,
1747 profile_path_len, acct_desc_len, workstations_len;
1748
1749 uint32 user_rid, group_rid, hours_len, unknown_6;
1750 uint16 acct_ctrl, logon_divs;
1751 uint16 bad_password_count, logon_count;
1752 uint8 *hours = NULL;
1753 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1754 uint32 len = 0;
1755 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1756 uint32 pwHistLen = 0;
1757 BOOL ret = True;
1758 fstring tmpstring;
1759
1760 if(sampass == NULL || buf == NULL) {
1761 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1762 return False;
1763 }
1764
1765 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1766
1767 /* unpack the buffer into variables */
1768 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1769 &logon_time, /* d */
1770 &logoff_time, /* d */
1771 &kickoff_time, /* d */
1772 &bad_password_time, /* d */
1773 &pass_last_set_time, /* d */
1774 &pass_can_change_time, /* d */
1775 &pass_must_change_time, /* d */
1776 &username_len, &username, /* B */
1777 &domain_len, &domain, /* B */
1778 &nt_username_len, &nt_username, /* B */
1779 &fullname_len, &fullname, /* B */
1780 &homedir_len, &homedir, /* B */
1781 &dir_drive_len, &dir_drive, /* B */
1782 &logon_script_len, &logon_script, /* B */
1783 &profile_path_len, &profile_path, /* B */
1784 &acct_desc_len, &acct_desc, /* B */
1785 &workstations_len, &workstations, /* B */
1786 &unknown_str_len, &unknown_str, /* B */
1787 &munged_dial_len, &munged_dial, /* B */
1788 &user_rid, /* d */
1789 &group_rid, /* d */
1790 &lm_pw_len, &lm_pw_ptr, /* B */
1791 &nt_pw_len, &nt_pw_ptr, /* B */
1792 /* Change from V1 is addition of password history field. */
1793 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1794 &acct_ctrl, /* w */
1795 /* Also "remove_me" field was removed. */
1796 &logon_divs, /* w */
1797 &hours_len, /* d */
1798 &hourslen, &hours, /* B */
1799 &bad_password_count, /* w */
1800 &logon_count, /* w */
1801 &unknown_6); /* d */
1802
1803 if (len == (uint32) -1) {
1804 ret = False;
1805 goto done;
1806 }
1807
1808 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1809 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1810 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1811 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1812 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1813 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1814 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1815
1816 pdb_set_username(sampass, username, PDB_SET);
1817 pdb_set_domain(sampass, domain, PDB_SET);
1818 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1819 pdb_set_fullname(sampass, fullname, PDB_SET);
1820
1821 if (homedir) {
1822 fstrcpy( tmpstring, homedir );
1823 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1824 pdb_set_homedir(sampass, tmpstring, PDB_SET);
1825 }
1826 else {
1827 pdb_set_homedir(sampass,
1828 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1829 PDB_DEFAULT);
1830 }
1831
1832 if (dir_drive)
1833 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1834 else
1835 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1836
1837 if (logon_script) {
1838 fstrcpy( tmpstring, logon_script );
1839 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1840 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
1841 }
1842 else {
1843 pdb_set_logon_script(sampass,
1844 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1845 PDB_DEFAULT);
1846 }
1847
1848 if (profile_path) {
1849 fstrcpy( tmpstring, profile_path );
1850 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1851 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
1852 }
1853 else {
1854 pdb_set_profile_path(sampass,
1855 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1856 PDB_DEFAULT);
1857 }
1858
1859 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1860 pdb_set_workstations(sampass, workstations, PDB_SET);
1861 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1862
1863 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1864 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1865 ret = False;
1866 goto done;
1867 }
1868 }
1869
1870 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1871 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1872 ret = False;
1873 goto done;
1874 }
1875 }
1876
1877 /* Change from V1 is addition of password history field. */
1878 pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1879 if (pwHistLen) {
1880 uint8 *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1881 if (!pw_hist) {
1882 ret = False;
1883 goto done;
1884 }
1885 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1886 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1887 int i;
1888 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1889 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1890 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1891 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1892 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1893 PW_HISTORY_ENTRY_LEN);
1894 }
1895 }
1896 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1897 SAFE_FREE(pw_hist);
1898 ret = False;
1899 goto done;
1900 }
1901 SAFE_FREE(pw_hist);
1902 } else {
1903 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1904 }
1905
1906 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1907 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1908 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1909 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1910 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1911 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1912 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1913 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1914 pdb_set_hours(sampass, hours, PDB_SET);
1915
1916 done:
1917
1918 SAFE_FREE(username);
1919 SAFE_FREE(domain);
1920 SAFE_FREE(nt_username);
1921 SAFE_FREE(fullname);
1922 SAFE_FREE(homedir);
1923 SAFE_FREE(dir_drive);
1924 SAFE_FREE(logon_script);
1925 SAFE_FREE(profile_path);
1926 SAFE_FREE(acct_desc);
1927 SAFE_FREE(workstations);
1928 SAFE_FREE(munged_dial);
1929 SAFE_FREE(unknown_str);
1930 SAFE_FREE(lm_pw_ptr);
1931 SAFE_FREE(nt_pw_ptr);
1932 SAFE_FREE(nt_pw_hist_ptr);
1933 SAFE_FREE(hours);
1934
1935 return ret;
1936 }
1937
1938 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1939 {
1940 size_t len, buflen;
1941
1942 /* times are stored as 32bit integer
1943 take care on system with 64bit wide time_t
1944 --SSS */
1945 uint32 logon_time,
1946 logoff_time,
1947 kickoff_time,
1948 bad_password_time,
1949 pass_last_set_time,
1950 pass_can_change_time,
1951 pass_must_change_time;
1952
1953 uint32 user_rid, group_rid;
1954
1955 const char *username;
1956 const char *domain;
1957 const char *nt_username;
1958 const char *dir_drive;
1959 const char *unknown_str;
1960 const char *munged_dial;
1961 const char *fullname;
1962 const char *homedir;
1963 const char *logon_script;
1964 const char *profile_path;
1965 const char *acct_desc;
1966 const char *workstations;
1967 uint32 username_len, domain_len, nt_username_len,
1968 dir_drive_len, unknown_str_len, munged_dial_len,
1969 fullname_len, homedir_len, logon_script_len,
1970 profile_path_len, acct_desc_len, workstations_len;
1971
1972 const uint8 *lm_pw;
1973 const uint8 *nt_pw;
1974 const uint8 *nt_pw_hist;
1975 uint32 lm_pw_len = 16;
1976 uint32 nt_pw_len = 16;
1977 uint32 nt_pw_hist_len;
1978 uint32 pwHistLen = 0;
1979
1980 /* do we have a valid SAM_ACCOUNT pointer? */
1981 if (sampass == NULL) {
1982 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1983 return -1;
1984 }
1985
1986 *buf = NULL;
1987 buflen = 0;
1988
1989 logon_time = (uint32)pdb_get_logon_time(sampass);
1990 logoff_time = (uint32)pdb_get_logoff_time(sampass);
1991 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
1992 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
1993 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
1994 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
1995 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
1996
1997 user_rid = pdb_get_user_rid(sampass);
1998 group_rid = pdb_get_group_rid(sampass);
1999
2000 username = pdb_get_username(sampass);
2001 if (username) {
2002 username_len = strlen(username) +1;
2003 } else {
2004 username_len = 0;
2005 }
2006
2007 domain = pdb_get_domain(sampass);
2008 if (domain) {
2009 domain_len = strlen(domain) +1;
2010 } else {
2011 domain_len = 0;
2012 }
2013
2014 nt_username = pdb_get_nt_username(sampass);
2015 if (nt_username) {
2016 nt_username_len = strlen(nt_username) +1;
2017 } else {
2018 nt_username_len = 0;
2019 }
2020
2021 fullname = pdb_get_fullname(sampass);
2022 if (fullname) {
2023 fullname_len = strlen(fullname) +1;
2024 } else {
2025 fullname_len = 0;
2026 }
2027
2028 /*
2029 * Only updates fields which have been set (not defaults from smb.conf)
2030 */
2031
2032 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2033 dir_drive = pdb_get_dir_drive(sampass);
2034 } else {
2035 dir_drive = NULL;
2036 }
2037 if (dir_drive) {
2038 dir_drive_len = strlen(dir_drive) +1;
2039 } else {
2040 dir_drive_len = 0;
2041 }
2042
2043 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2044 homedir = pdb_get_homedir(sampass);
2045 } else {
2046 homedir = NULL;
2047 }
2048 if (homedir) {
2049 homedir_len = strlen(homedir) +1;
2050 } else {
2051 homedir_len = 0;
2052 }
2053
2054 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2055 logon_script = pdb_get_logon_script(sampass);
2056 } else {
2057 logon_script = NULL;
2058 }
2059 if (logon_script) {
2060 logon_script_len = strlen(logon_script) +1;
2061 } else {
2062 logon_script_len = 0;
2063 }
2064
2065 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2066 profile_path = pdb_get_profile_path(sampass);
2067 } else {
2068 profile_path = NULL;
2069 }
2070 if (profile_path) {
2071 profile_path_len = strlen(profile_path) +1;
2072 } else {
2073 profile_path_len = 0;
2074 }
2075
2076 lm_pw = pdb_get_lanman_passwd(sampass);
2077 if (!lm_pw) {
2078 lm_pw_len = 0;
2079 }
2080
2081 nt_pw = pdb_get_nt_passwd(sampass);
2082 if (!nt_pw) {
2083 nt_pw_len = 0;
2084 }
2085
2086 pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
2087 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
2088 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2089 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2090 } else {
2091 nt_pw_hist_len = 0;
2092 }
2093
2094 acct_desc = pdb_get_acct_desc(sampass);
2095 if (acct_desc) {
2096 acct_desc_len = strlen(acct_desc) +1;
2097 } else {
2098 acct_desc_len = 0;
2099 }
2100
2101 workstations = pdb_get_workstations(sampass);
2102 if (workstations) {
2103 workstations_len = strlen(workstations) +1;
2104 } else {
2105 workstations_len = 0;
2106 }
2107
2108 unknown_str = NULL;
2109 unknown_str_len = 0;
2110
2111 munged_dial = pdb_get_munged_dial(sampass);
2112 if (munged_dial) {
2113 munged_dial_len = strlen(munged_dial) +1;
2114 } else {
2115 munged_dial_len = 0;
2116 }
2117
2118 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2119
2120 /* one time to get the size needed */
2121 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
2122 logon_time, /* d */
2123 logoff_time, /* d */
2124 kickoff_time, /* d */
2125 bad_password_time, /* d */
2126 pass_last_set_time, /* d */
2127 pass_can_change_time, /* d */
2128 pass_must_change_time, /* d */
2129 username_len, username, /* B */
2130 domain_len, domain, /* B */
2131 nt_username_len, nt_username, /* B */
2132 fullname_len, fullname, /* B */
2133 homedir_len, homedir, /* B */
2134 dir_drive_len, dir_drive, /* B */
2135 logon_script_len, logon_script, /* B */
2136 profile_path_len, profile_path, /* B */
2137 acct_desc_len, acct_desc, /* B */
2138 workstations_len, workstations, /* B */
2139 unknown_str_len, unknown_str, /* B */
2140 munged_dial_len, munged_dial, /* B */
2141 user_rid, /* d */
2142 group_rid, /* d */
2143 lm_pw_len, lm_pw, /* B */
2144 nt_pw_len, nt_pw, /* B */
2145 nt_pw_hist_len, nt_pw_hist, /* B */
2146 pdb_get_acct_ctrl(sampass), /* w */
2147 pdb_get_logon_divs(sampass), /* w */
2148 pdb_get_hours_len(sampass), /* d */
2149 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2150 pdb_get_bad_password_count(sampass), /* w */
2151 pdb_get_logon_count(sampass), /* w */
2152 pdb_get_unknown_6(sampass)); /* d */
2153
2154 if (size_only) {
2155 return buflen;
2156 }
2157
2158 /* malloc the space needed */
2159 if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2160 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2161 return (-1);
2162 }
2163
2164 /* now for the real call to tdb_pack() */
2165 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
2166 logon_time, /* d */
2167 logoff_time, /* d */
2168 kickoff_time, /* d */
2169 bad_password_time, /* d */
2170 pass_last_set_time, /* d */
2171 pass_can_change_time, /* d */
2172 pass_must_change_time, /* d */
2173 username_len, username, /* B */
2174 domain_len, domain, /* B */
2175 nt_username_len, nt_username, /* B */
2176 fullname_len, fullname, /* B */
2177 homedir_len, homedir, /* B */
2178 dir_drive_len, dir_drive, /* B */
2179 logon_script_len, logon_script, /* B */
2180 profile_path_len, profile_path, /* B */
2181 acct_desc_len, acct_desc, /* B */
2182 workstations_len, workstations, /* B */
2183 unknown_str_len, unknown_str, /* B */
2184 munged_dial_len, munged_dial, /* B */
2185 user_rid, /* d */
2186 group_rid, /* d */
2187 lm_pw_len, lm_pw, /* B */
2188 nt_pw_len, nt_pw, /* B */
2189 nt_pw_hist_len, nt_pw_hist, /* B */
2190 pdb_get_acct_ctrl(sampass), /* w */
2191 pdb_get_logon_divs(sampass), /* w */
2192 pdb_get_hours_len(sampass), /* d */
2193 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2194 pdb_get_bad_password_count(sampass), /* w */
2195 pdb_get_logon_count(sampass), /* w */
2196 pdb_get_unknown_6(sampass)); /* d */
2197
2198 /* check to make sure we got it correct */
2199 if (buflen != len) {
2200 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2201 (unsigned long)buflen, (unsigned long)len));
2202 /* error */
2203 SAFE_FREE (*buf);
2204 return (-1);
2205 }
2206
2207 return (buflen);
2208 }
2209
2210 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2211 {
2212 BOOL result;
2213 uint8 *buf;
2214 int len;
2215
2216 if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2217 return False;
2218
2219 len = init_buffer_from_sam_v2(&buf, src, False);
2220
2221 if (len == -1)
2222 return False;
2223
2224 result = init_sam_from_buffer_v2(*dst, buf, len);
2225 (*dst)->methods = src->methods;
2226
2227 free(buf);
2228
2229 return result;
2230 }
2231
2232 /**********************************************************************
2233 **********************************************************************/
2234
2235 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2236 {
2237 uid_t u_low, u_high;
2238 gid_t g_low, g_high;
2239
2240 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2241 return False;
2242 }
2243
2244 *low = (u_low < g_low) ? u_low : g_low;
2245 *high = (u_high < g_high) ? u_high : g_high;
2246
2247 return True;
2248 }
2249
2250 /******************************************************************
2251 Get the the non-algorithmic RID range if idmap range are defined
2252 ******************************************************************/
2253
2254 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2255 {
2256 uint32 id_low, id_high;
2257
2258 if (!lp_enable_rid_algorithm()) {
2259 *low = BASE_RID;
2260 *high = (uint32)-1;
2261 }
2262
2263 if (!get_free_ugid_range(&id_low, &id_high)) {
2264 return False;
2265 }
2266
2267 *low = algorithmic_pdb_uid_to_user_rid(id_low);
2268 if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2269 *high = (uint32)-1;
2270 } else {
2271 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2272 }
2273
2274 return True;
2275 }
2276
2277 /*********************************************************************
2278 Update the bad password count checking the AP_RESET_COUNT_TIME
2279 *********************************************************************/
2280
2281 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2282 {
2283 time_t LastBadPassword;
2284 uint16 BadPasswordCount;
2285 uint32 resettime;
2286
2287 if (!sampass) return False;
2288
2289 BadPasswordCount = pdb_get_bad_password_count(sampass);
2290 if (!BadPasswordCount) {
2291 DEBUG(9, ("No bad password attempts.\n"));
2292 return True;
2293 }
2294
2295 if (!pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime)) {
2296 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2297 return False;
2298 }
2299
2300 /* First, check if there is a reset time to compare */
2301 if ((resettime == (uint32) -1) || (resettime == 0)) {
2302 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2303 return True;
2304 }
2305
2306 LastBadPassword = pdb_get_bad_password_time(sampass);
2307 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2308 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2309 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2310 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2311 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2312 if (updated) {
2313 *updated = True;
2314 }
2315 }
2316
2317 return True;
2318 }
2319
2320 /*********************************************************************
2321 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2322 *********************************************************************/
2323
2324 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2325 {
2326 uint32 duration;
2327 time_t LastBadPassword;
2328
2329 if (!sampass) return False;
2330
2331 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2332 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2333 pdb_get_username(sampass)));
2334 return True;
2335 }
2336
2337 if (!pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2338 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2339 return False;
2340 }
2341
2342 /* First, check if there is a duration to compare */
2343 if ((duration == (uint32) -1) || (duration == 0)) {
2344 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2345 return True;
2346 }
2347
2348 LastBadPassword = pdb_get_bad_password_time(sampass);
2349 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2350 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2351
2352 if (LastBadPassword == (time_t)0) {
2353 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2354 bad password time. Leaving locked out.\n",
2355 pdb_get_username(sampass) ));
2356 return True;
2357 }
2358
2359 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2360 pdb_set_acct_ctrl(sampass,
2361 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2362 PDB_CHANGED);
2363 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2364 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2365 if (updated) {
2366 *updated = True;
2367 }
2368 }
2369
2370 return True;
2371 }
2372
2373 /*********************************************************************
2374 Increment the bad_password_count
2375 *********************************************************************/
2376
2377 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2378 {
2379 uint32 account_policy_lockout;
2380 BOOL autolock_updated = False, badpw_updated = False;
2381
2382 if (!sampass)
2383 return False;
2384
2385 /* Retrieve the account lockout policy */
2386 if (!pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT,
2387 &account_policy_lockout)) {
2388 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2389 return False;
2390 }
2391
2392 /* If there is no policy, we don't need to continue checking */
2393 if (!account_policy_lockout) {
2394 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2395 return True;
2396 }
2397
2398 /* Check if the autolock needs to be cleared */
2399 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2400 return False;
2401
2402 /* Check if the badpw count needs to be reset */
2403 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2404 return False;
2405
2406 /*
2407 Ok, now we can assume that any resetting that needs to be
2408 done has been done, and just get on with incrementing
2409 and autolocking if necessary
2410 */
2411
2412 pdb_set_bad_password_count(sampass,
2413 pdb_get_bad_password_count(sampass)+1,
2414 PDB_CHANGED);
2415 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2416
2417
2418 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2419 return True;
2420
2421 if (!pdb_set_acct_ctrl(sampass,
2422 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2423 PDB_CHANGED)) {
2424 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2425 return False;
2426 }
2427
2428 return True;
2429 }