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r5349: After talking with Jerry, reverted the addition of account policies to
[Samba/nascimento.git] / source3 / passdb / passdb.c
blob715eb9ed4c356725163564c2545e252e1b429e83
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=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.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 /*************************************************************
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 *psid_name_use = SID_NAME_ALIAS;
836
837 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
838 gr ? "succeeded" : "failed" ));
839
840 if( !gr )
841 fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
842 else
843 fstrcpy( name, gr->gr_name);
844
845 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
846 (unsigned int)rid ));
847
848 /* assume algorithmic groups are domain global groups */
849
850 *psid_name_use = SID_NAME_DOM_GRP;
851
852 return ( gr != NULL );
853 }
854 }
855
856 /*******************************************************************
857 Convert a name into a SID. Used in the lookup name rpc.
858 ********************************************************************/
859
860 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
861 {
862 DOM_SID local_sid;
863 DOM_SID sid;
864 fstring user;
865 SAM_ACCOUNT *sam_account = NULL;
866 struct group *grp;
867 GROUP_MAP map;
868
869 *psid_name_use = SID_NAME_UNKNOWN;
870
871 /*
872 * user may be quoted a const string, and map_username and
873 * friends can modify it. Make a modifiable copy. JRA.
874 */
875
876 fstrcpy(user, c_user);
877
878 sid_copy(&local_sid, get_global_sam_sid());
879
880 if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
881 fstring sid_str;
882 sid_copy( psid, &sid);
883 sid_to_string(sid_str, &sid);
884 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
885 (unsigned int)*psid_name_use ));
886 return True;
887 }
888
889 (void)map_username(user);
890
891 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
892 return False;
893 }
894
895 /* BEGIN ROOT BLOCK */
896
897 become_root();
898 if (pdb_getsampwnam(sam_account, user)) {
899 unbecome_root();
900 sid_copy(psid, pdb_get_user_sid(sam_account));
901 *psid_name_use = SID_NAME_USER;
902
903 pdb_free_sam(&sam_account);
904 return True;
905 }
906
907 pdb_free_sam(&sam_account);
908
909 /*
910 * Maybe it was a group ?
911 */
912
913 /* check if it's a mapped group */
914 if (pdb_getgrnam(&map, user)) {
915 /* yes it's a mapped group */
916 sid_copy(&local_sid, &map.sid);
917 *psid_name_use = map.sid_name_use;
918 } else {
919 /* it's not a mapped group */
920 grp = getgrnam(user);
921 if(!grp) {
922 unbecome_root(); /* ---> exit form block */
923 return False;
924 }
925
926 /*
927 *check if it's mapped, if it is reply it doesn't exist
928 *
929 * that's to prevent this case:
930 *
931 * unix group ug is mapped to nt group ng
932 * someone does a lookup on ug
933 * we must not reply as it doesn't "exist" anymore
934 * for NT. For NT only ng exists.
935 * JFM, 30/11/2001
936 */
937
938 if (pdb_getgrgid(&map, grp->gr_gid)){
939 unbecome_root(); /* ---> exit form block */
940 return False;
941 }
942
943 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
944 *psid_name_use = SID_NAME_ALIAS;
945 }
946 unbecome_root();
947 /* END ROOT BLOCK */
948
949 sid_copy( psid, &local_sid);
950
951 return True;
952 }
953
954 /*************************************************************
955 Change a password entry in the local smbpasswd file.
956 *************************************************************/
957
958 BOOL local_password_change(const char *user_name, int local_flags,
959 const char *new_passwd,
960 char *err_str, size_t err_str_len,
961 char *msg_str, size_t msg_str_len)
962 {
963 SAM_ACCOUNT *sam_pass=NULL;
964 uint16 other_acb;
965
966 *err_str = '\0';
967 *msg_str = '\0';
968
969 /* Get the smb passwd entry for this user */
970 pdb_init_sam(&sam_pass);
971
972 become_root();
973 if(!pdb_getsampwnam(sam_pass, user_name)) {
974 unbecome_root();
975 pdb_free_sam(&sam_pass);
976
977 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
978 /* Might not exist in /etc/passwd. Use rid algorithm here */
979 if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
980 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);
981 return False;
982 }
983 } else {
984 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
985 return False;
986 }
987 } else {
988 unbecome_root();
989 /* the entry already existed */
990 local_flags &= ~LOCAL_ADD_USER;
991 }
992
993 /* the 'other' acb bits not being changed here */
994 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
995 if (local_flags & LOCAL_TRUST_ACCOUNT) {
996 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
997 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
998 pdb_free_sam(&sam_pass);
999 return False;
1000 }
1001 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
1002 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
1003 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
1004 pdb_free_sam(&sam_pass);
1005 return False;
1006 }
1007 } else {
1008 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1009 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1010 pdb_free_sam(&sam_pass);
1011 return False;
1012 }
1013 }
1014
1015 /*
1016 * We are root - just write the new password
1017 * and the valid last change time.
1018 */
1019
1020 if (local_flags & LOCAL_DISABLE_USER) {
1021 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1022 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1023 pdb_free_sam(&sam_pass);
1024 return False;
1025 }
1026 } else if (local_flags & LOCAL_ENABLE_USER) {
1027 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1028 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1029 pdb_free_sam(&sam_pass);
1030 return False;
1031 }
1032 }
1033
1034 if (local_flags & LOCAL_SET_NO_PASSWORD) {
1035 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1036 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1037 pdb_free_sam(&sam_pass);
1038 return False;
1039 }
1040 } else if (local_flags & LOCAL_SET_PASSWORD) {
1041 /*
1042 * If we're dealing with setting a completely empty user account
1043 * ie. One with a password of 'XXXX', but not set disabled (like
1044 * an account created from scratch) then if the old password was
1045 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1046 * We remove that as we're giving this user their first password
1047 * and the decision hasn't really been made to disable them (ie.
1048 * don't create them disabled). JRA.
1049 */
1050 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1051 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1052 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1053 pdb_free_sam(&sam_pass);
1054 return False;
1055 }
1056 }
1057 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1058 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1059 pdb_free_sam(&sam_pass);
1060 return False;
1061 }
1062
1063 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1064 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1065 pdb_free_sam(&sam_pass);
1066 return False;
1067 }
1068 }
1069
1070 if (local_flags & LOCAL_ADD_USER) {
1071 if (pdb_add_sam_account(sam_pass)) {
1072 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1073 pdb_free_sam(&sam_pass);
1074 return True;
1075 } else {
1076 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1077 pdb_free_sam(&sam_pass);
1078 return False;
1079 }
1080 } else if (local_flags & LOCAL_DELETE_USER) {
1081 if (!pdb_delete_sam_account(sam_pass)) {
1082 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1083 pdb_free_sam(&sam_pass);
1084 return False;
1085 }
1086 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1087 } else {
1088 if(!pdb_update_sam_account(sam_pass)) {
1089 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1090 pdb_free_sam(&sam_pass);
1091 return False;
1092 }
1093 if(local_flags & LOCAL_DISABLE_USER)
1094 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1095 else if (local_flags & LOCAL_ENABLE_USER)
1096 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1097 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1098 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1099 }
1100
1101 pdb_free_sam(&sam_pass);
1102 return True;
1103 }
1104
1105 /****************************************************************************
1106 Convert a uid to SID - algorithmic.
1107 ****************************************************************************/
1108
1109 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1110 {
1111 if ( !lp_enable_rid_algorithm() )
1112 return NULL;
1113
1114 DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1115 sid_copy( psid, get_global_sam_sid() );
1116 sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
1117 DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
1118 (unsigned int)uid, sid_string_static(psid) ));
1119
1120 return psid;
1121 }
1122
1123 /****************************************************************************
1124 Convert a uid to SID - locally.
1125 ****************************************************************************/
1126
1127 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1128 {
1129 SAM_ACCOUNT *sampw = NULL;
1130 struct passwd *unix_pw;
1131 BOOL ret;
1132
1133 unix_pw = sys_getpwuid( uid );
1134
1135 if ( !unix_pw ) {
1136 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1137 return algorithmic_uid_to_sid( psid, uid);
1138 }
1139
1140 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1141 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1142 return NULL;
1143 }
1144
1145 become_root();
1146 ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1147 unbecome_root();
1148
1149 if ( ret )
1150 sid_copy( psid, pdb_get_user_sid(sampw) );
1151 else {
1152 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1153 unix_pw->pw_name, (unsigned long)uid));
1154
1155 return algorithmic_uid_to_sid( psid, uid);
1156 }
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 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1196 sid_string_static(psid)));
1197 return False;
1198 }
1199 unbecome_root();
1200
1201 user_name = pdb_get_username(sampw);
1202
1203 unix_pw = sys_getpwnam( user_name );
1204
1205 if ( !unix_pw ) {
1206 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1207 user_name));
1208 pdb_free_sam( &sampw );
1209 return False;
1210 }
1211
1212 *puid = unix_pw->pw_uid;
1213
1214 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1215 (unsigned int)*puid, user_name ));
1216
1217 *name_type = SID_NAME_USER;
1218
1219 return True;
1220 }
1221
1222 /****************************************************************************
1223 Convert a gid to SID - algorithmic.
1224 ****************************************************************************/
1225
1226 DOM_SID *algorithmic_gid_to_sid(DOM_SID *psid, uid_t gid)
1227 {
1228 if ( !lp_enable_rid_algorithm() )
1229 return NULL;
1230
1231 DEBUG(8,("algorithmic_gid_to_sid: falling back to RID algorithm\n"));
1232 sid_copy( psid, get_global_sam_sid() );
1233 sid_append_rid( psid, pdb_gid_to_group_rid(gid) );
1234 DEBUG(10,("algorithmic_gid_to_sid: gid (%d) -> SID %s.\n",
1235 (unsigned int)gid, sid_string_static(psid) ));
1236
1237 return psid;
1238 }
1239
1240 /****************************************************************************
1241 Convert a gid to SID - locally.
1242 ****************************************************************************/
1243
1244 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1245 {
1246 GROUP_MAP group;
1247 BOOL ret;
1248
1249 /* we don't need to disable winbindd since the gid is stored in
1250 the GROUP_MAP object */
1251
1252 /* done as root since ldap backend requires root to open a connection */
1253
1254 become_root();
1255 ret = pdb_getgrgid( &group, gid );
1256 unbecome_root();
1257
1258 if ( !ret ) {
1259
1260 /* algorithmic to rid mapping if enabled */
1261
1262 if ( lp_enable_rid_algorithm() ) {
1263
1264 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1265 (unsigned int)gid, sid_string_static(psid)));
1266
1267 return algorithmic_gid_to_sid(psid, gid);
1268 }
1269 else
1270 return NULL;
1271 }
1272
1273 sid_copy( psid, &group.sid );
1274
1275 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1276 (unsigned int)gid, sid_string_static(psid)));
1277
1278 return psid;
1279 }
1280
1281 /****************************************************************************
1282 Convert a SID to gid - locally.
1283 ****************************************************************************/
1284
1285 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1286 {
1287 uint32 rid;
1288 GROUP_MAP group;
1289 BOOL ret;
1290
1291 *name_type = SID_NAME_UNKNOWN;
1292
1293 /* This call can enumerate group mappings for foreign sids as well.
1294 So don't check for a match against our domain SID */
1295
1296 /* we don't need to disable winbindd since the gid is stored in
1297 the GROUP_MAP object */
1298
1299 become_root();
1300 ret = pdb_getgrsid(&group, *psid);
1301 unbecome_root();
1302
1303 if ( !ret ) {
1304
1305 /* Fallback to algorithmic rid mapping if enabled */
1306
1307 if ( lp_enable_rid_algorithm() ) {
1308
1309 if (!sid_check_is_in_our_domain(psid) ) {
1310 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1311 return False;
1312 }
1313
1314 if (!sid_peek_rid(psid, &rid)) {
1315 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1316 return False;
1317 }
1318
1319 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1320
1321 if (algorithmic_pdb_rid_is_user(rid)) {
1322 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1323 return False;
1324 } else {
1325 *pgid = pdb_group_rid_to_gid(rid);
1326 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1327 return True;
1328 }
1329 }
1330
1331 return False;
1332 }
1333
1334 *pgid = group.gid;
1335 *name_type = group.sid_name_use;
1336
1337 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1338 (unsigned int)*pgid));
1339
1340 return True;
1341 }
1342
1343 /**********************************************************************
1344 Marshall/unmarshall SAM_ACCOUNT structs.
1345 *********************************************************************/
1346
1347 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1348 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1349 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1350
1351 /**********************************************************************
1352 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1353 *********************************************************************/
1354
1355 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1356 {
1357 return(init_sam_from_buffer_v2(sampass, buf, buflen));
1358 }
1359
1360 /**********************************************************************
1361 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1362 *********************************************************************/
1363
1364 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1365 {
1366 return(init_buffer_from_sam_v2(buf, sampass, size_only));
1367 }
1368
1369
1370 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1371 {
1372
1373 /* times are stored as 32bit integer
1374 take care on system with 64bit wide time_t
1375 --SSS */
1376 uint32 logon_time,
1377 logoff_time,
1378 kickoff_time,
1379 pass_last_set_time,
1380 pass_can_change_time,
1381 pass_must_change_time;
1382 char *username = NULL;
1383 char *domain = NULL;
1384 char *nt_username = NULL;
1385 char *dir_drive = NULL;
1386 char *unknown_str = NULL;
1387 char *munged_dial = NULL;
1388 char *fullname = NULL;
1389 char *homedir = NULL;
1390 char *logon_script = NULL;
1391 char *profile_path = NULL;
1392 char *acct_desc = NULL;
1393 char *workstations = NULL;
1394 uint32 username_len, domain_len, nt_username_len,
1395 dir_drive_len, unknown_str_len, munged_dial_len,
1396 fullname_len, homedir_len, logon_script_len,
1397 profile_path_len, acct_desc_len, workstations_len;
1398
1399 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1400 uint16 acct_ctrl, logon_divs;
1401 uint16 bad_password_count, logon_count;
1402 uint8 *hours = NULL;
1403 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1404 uint32 len = 0;
1405 uint32 lm_pw_len, nt_pw_len, hourslen;
1406 BOOL ret = True;
1407
1408 if(sampass == NULL || buf == NULL) {
1409 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1410 return False;
1411 }
1412
1413 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1414
1415 /* unpack the buffer into variables */
1416 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1417 &logon_time, /* d */
1418 &logoff_time, /* d */
1419 &kickoff_time, /* d */
1420 &pass_last_set_time, /* d */
1421 &pass_can_change_time, /* d */
1422 &pass_must_change_time, /* d */
1423 &username_len, &username, /* B */
1424 &domain_len, &domain, /* B */
1425 &nt_username_len, &nt_username, /* B */
1426 &fullname_len, &fullname, /* B */
1427 &homedir_len, &homedir, /* B */
1428 &dir_drive_len, &dir_drive, /* B */
1429 &logon_script_len, &logon_script, /* B */
1430 &profile_path_len, &profile_path, /* B */
1431 &acct_desc_len, &acct_desc, /* B */
1432 &workstations_len, &workstations, /* B */
1433 &unknown_str_len, &unknown_str, /* B */
1434 &munged_dial_len, &munged_dial, /* B */
1435 &user_rid, /* d */
1436 &group_rid, /* d */
1437 &lm_pw_len, &lm_pw_ptr, /* B */
1438 &nt_pw_len, &nt_pw_ptr, /* B */
1439 &acct_ctrl, /* w */
1440 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1441 &logon_divs, /* w */
1442 &hours_len, /* d */
1443 &hourslen, &hours, /* B */
1444 &bad_password_count, /* w */
1445 &logon_count, /* w */
1446 &unknown_6); /* d */
1447
1448 if (len == (uint32) -1) {
1449 ret = False;
1450 goto done;
1451 }
1452
1453 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1454 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1455 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1456 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1457 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1458 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1459
1460 pdb_set_username(sampass, username, PDB_SET);
1461 pdb_set_domain(sampass, domain, PDB_SET);
1462 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1463 pdb_set_fullname(sampass, fullname, PDB_SET);
1464
1465 if (homedir) {
1466 pdb_set_homedir(sampass, homedir, PDB_SET);
1467 }
1468 else {
1469 pdb_set_homedir(sampass,
1470 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1471 PDB_DEFAULT);
1472 }
1473
1474 if (dir_drive)
1475 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1476 else {
1477 pdb_set_dir_drive(sampass,
1478 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1479 PDB_DEFAULT);
1480 }
1481
1482 if (logon_script)
1483 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1484 else {
1485 pdb_set_logon_script(sampass,
1486 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1487 PDB_DEFAULT);
1488 }
1489
1490 if (profile_path) {
1491 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1492 } else {
1493 pdb_set_profile_path(sampass,
1494 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1495 PDB_DEFAULT);
1496 }
1497
1498 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1499 pdb_set_workstations(sampass, workstations, PDB_SET);
1500 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1501
1502 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1503 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1504 ret = False;
1505 goto done;
1506 }
1507 }
1508
1509 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1510 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1511 ret = False;
1512 goto done;
1513 }
1514 }
1515
1516 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1517 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1518 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1519 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1520 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1521 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1522 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1523 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1524 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1525 pdb_set_hours(sampass, hours, PDB_SET);
1526
1527 done:
1528
1529 SAFE_FREE(username);
1530 SAFE_FREE(domain);
1531 SAFE_FREE(nt_username);
1532 SAFE_FREE(fullname);
1533 SAFE_FREE(homedir);
1534 SAFE_FREE(dir_drive);
1535 SAFE_FREE(logon_script);
1536 SAFE_FREE(profile_path);
1537 SAFE_FREE(acct_desc);
1538 SAFE_FREE(workstations);
1539 SAFE_FREE(munged_dial);
1540 SAFE_FREE(unknown_str);
1541 SAFE_FREE(lm_pw_ptr);
1542 SAFE_FREE(nt_pw_ptr);
1543 SAFE_FREE(hours);
1544
1545 return ret;
1546 }
1547
1548 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1549 {
1550
1551 /* times are stored as 32bit integer
1552 take care on system with 64bit wide time_t
1553 --SSS */
1554 uint32 logon_time,
1555 logoff_time,
1556 kickoff_time,
1557 bad_password_time,
1558 pass_last_set_time,
1559 pass_can_change_time,
1560 pass_must_change_time;
1561 char *username = NULL;
1562 char *domain = NULL;
1563 char *nt_username = NULL;
1564 char *dir_drive = NULL;
1565 char *unknown_str = NULL;
1566 char *munged_dial = NULL;
1567 char *fullname = NULL;
1568 char *homedir = NULL;
1569 char *logon_script = NULL;
1570 char *profile_path = NULL;
1571 char *acct_desc = NULL;
1572 char *workstations = NULL;
1573 uint32 username_len, domain_len, nt_username_len,
1574 dir_drive_len, unknown_str_len, munged_dial_len,
1575 fullname_len, homedir_len, logon_script_len,
1576 profile_path_len, acct_desc_len, workstations_len;
1577
1578 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1579 uint16 acct_ctrl, logon_divs;
1580 uint16 bad_password_count, logon_count;
1581 uint8 *hours = NULL;
1582 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1583 uint32 len = 0;
1584 uint32 lm_pw_len, nt_pw_len, hourslen;
1585 BOOL ret = True;
1586
1587 if(sampass == NULL || buf == NULL) {
1588 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1589 return False;
1590 }
1591
1592 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1593
1594 /* unpack the buffer into variables */
1595 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1596 &logon_time, /* d */
1597 &logoff_time, /* d */
1598 &kickoff_time, /* d */
1599 /* Change from V0 is addition of bad_password_time field. */
1600 &bad_password_time, /* d */
1601 &pass_last_set_time, /* d */
1602 &pass_can_change_time, /* d */
1603 &pass_must_change_time, /* d */
1604 &username_len, &username, /* B */
1605 &domain_len, &domain, /* B */
1606 &nt_username_len, &nt_username, /* B */
1607 &fullname_len, &fullname, /* B */
1608 &homedir_len, &homedir, /* B */
1609 &dir_drive_len, &dir_drive, /* B */
1610 &logon_script_len, &logon_script, /* B */
1611 &profile_path_len, &profile_path, /* B */
1612 &acct_desc_len, &acct_desc, /* B */
1613 &workstations_len, &workstations, /* B */
1614 &unknown_str_len, &unknown_str, /* B */
1615 &munged_dial_len, &munged_dial, /* B */
1616 &user_rid, /* d */
1617 &group_rid, /* d */
1618 &lm_pw_len, &lm_pw_ptr, /* B */
1619 &nt_pw_len, &nt_pw_ptr, /* B */
1620 &acct_ctrl, /* w */
1621 &remove_me, /* d */
1622 &logon_divs, /* w */
1623 &hours_len, /* d */
1624 &hourslen, &hours, /* B */
1625 &bad_password_count, /* w */
1626 &logon_count, /* w */
1627 &unknown_6); /* d */
1628
1629 if (len == (uint32) -1) {
1630 ret = False;
1631 goto done;
1632 }
1633
1634 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1635 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1636 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1637
1638 /* Change from V0 is addition of bad_password_time field. */
1639 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1640 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1641 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1642 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1643
1644 pdb_set_username(sampass, username, PDB_SET);
1645 pdb_set_domain(sampass, domain, PDB_SET);
1646 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1647 pdb_set_fullname(sampass, fullname, PDB_SET);
1648
1649 if (homedir) {
1650 pdb_set_homedir(sampass, homedir, PDB_SET);
1651 }
1652 else {
1653 pdb_set_homedir(sampass,
1654 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1655 PDB_DEFAULT);
1656 }
1657
1658 if (dir_drive)
1659 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1660 else {
1661 pdb_set_dir_drive(sampass,
1662 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1663 PDB_DEFAULT);
1664 }
1665
1666 if (logon_script)
1667 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1668 else {
1669 pdb_set_logon_script(sampass,
1670 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1671 PDB_DEFAULT);
1672 }
1673
1674 if (profile_path) {
1675 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1676 } else {
1677 pdb_set_profile_path(sampass,
1678 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1679 PDB_DEFAULT);
1680 }
1681
1682 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1683 pdb_set_workstations(sampass, workstations, PDB_SET);
1684 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1685
1686 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1687 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1688 ret = False;
1689 goto done;
1690 }
1691 }
1692
1693 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1694 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1695 ret = False;
1696 goto done;
1697 }
1698 }
1699
1700 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1701
1702 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1703 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1704 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1705 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1706 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1707 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1708 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1709 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1710 pdb_set_hours(sampass, hours, PDB_SET);
1711
1712 done:
1713
1714 SAFE_FREE(username);
1715 SAFE_FREE(domain);
1716 SAFE_FREE(nt_username);
1717 SAFE_FREE(fullname);
1718 SAFE_FREE(homedir);
1719 SAFE_FREE(dir_drive);
1720 SAFE_FREE(logon_script);
1721 SAFE_FREE(profile_path);
1722 SAFE_FREE(acct_desc);
1723 SAFE_FREE(workstations);
1724 SAFE_FREE(munged_dial);
1725 SAFE_FREE(unknown_str);
1726 SAFE_FREE(lm_pw_ptr);
1727 SAFE_FREE(nt_pw_ptr);
1728 SAFE_FREE(hours);
1729
1730 return ret;
1731 }
1732
1733
1734 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1735 {
1736
1737 /* times are stored as 32bit integer
1738 take care on system with 64bit wide time_t
1739 --SSS */
1740 uint32 logon_time,
1741 logoff_time,
1742 kickoff_time,
1743 bad_password_time,
1744 pass_last_set_time,
1745 pass_can_change_time,
1746 pass_must_change_time;
1747 char *username = NULL;
1748 char *domain = NULL;
1749 char *nt_username = NULL;
1750 char *dir_drive = NULL;
1751 char *unknown_str = NULL;
1752 char *munged_dial = NULL;
1753 char *fullname = NULL;
1754 char *homedir = NULL;
1755 char *logon_script = NULL;
1756 char *profile_path = NULL;
1757 char *acct_desc = NULL;
1758 char *workstations = NULL;
1759 uint32 username_len, domain_len, nt_username_len,
1760 dir_drive_len, unknown_str_len, munged_dial_len,
1761 fullname_len, homedir_len, logon_script_len,
1762 profile_path_len, acct_desc_len, workstations_len;
1763
1764 uint32 user_rid, group_rid, hours_len, unknown_6;
1765 uint16 acct_ctrl, logon_divs;
1766 uint16 bad_password_count, logon_count;
1767 uint8 *hours = NULL;
1768 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1769 uint32 len = 0;
1770 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1771 uint32 pwHistLen = 0;
1772 BOOL ret = True;
1773 fstring tmpstring;
1774
1775 if(sampass == NULL || buf == NULL) {
1776 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1777 return False;
1778 }
1779
1780 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1781
1782 /* unpack the buffer into variables */
1783 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1784 &logon_time, /* d */
1785 &logoff_time, /* d */
1786 &kickoff_time, /* d */
1787 &bad_password_time, /* d */
1788 &pass_last_set_time, /* d */
1789 &pass_can_change_time, /* d */
1790 &pass_must_change_time, /* d */
1791 &username_len, &username, /* B */
1792 &domain_len, &domain, /* B */
1793 &nt_username_len, &nt_username, /* B */
1794 &fullname_len, &fullname, /* B */
1795 &homedir_len, &homedir, /* B */
1796 &dir_drive_len, &dir_drive, /* B */
1797 &logon_script_len, &logon_script, /* B */
1798 &profile_path_len, &profile_path, /* B */
1799 &acct_desc_len, &acct_desc, /* B */
1800 &workstations_len, &workstations, /* B */
1801 &unknown_str_len, &unknown_str, /* B */
1802 &munged_dial_len, &munged_dial, /* B */
1803 &user_rid, /* d */
1804 &group_rid, /* d */
1805 &lm_pw_len, &lm_pw_ptr, /* B */
1806 &nt_pw_len, &nt_pw_ptr, /* B */
1807 /* Change from V1 is addition of password history field. */
1808 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1809 &acct_ctrl, /* w */
1810 /* Also "remove_me" field was removed. */
1811 &logon_divs, /* w */
1812 &hours_len, /* d */
1813 &hourslen, &hours, /* B */
1814 &bad_password_count, /* w */
1815 &logon_count, /* w */
1816 &unknown_6); /* d */
1817
1818 if (len == (uint32) -1) {
1819 ret = False;
1820 goto done;
1821 }
1822
1823 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1824 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1825 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1826 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1827 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1828 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1829 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1830
1831 pdb_set_username(sampass, username, PDB_SET);
1832 pdb_set_domain(sampass, domain, PDB_SET);
1833 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1834 pdb_set_fullname(sampass, fullname, PDB_SET);
1835
1836 if (homedir) {
1837 fstrcpy( tmpstring, homedir );
1838 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1839 pdb_set_homedir(sampass, tmpstring, PDB_SET);
1840 }
1841 else {
1842 pdb_set_homedir(sampass,
1843 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1844 PDB_DEFAULT);
1845 }
1846
1847 if (dir_drive)
1848 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1849 else
1850 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1851
1852 if (logon_script) {
1853 fstrcpy( tmpstring, logon_script );
1854 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1855 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
1856 }
1857 else {
1858 pdb_set_logon_script(sampass,
1859 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1860 PDB_DEFAULT);
1861 }
1862
1863 if (profile_path) {
1864 fstrcpy( tmpstring, profile_path );
1865 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1866 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
1867 }
1868 else {
1869 pdb_set_profile_path(sampass,
1870 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1871 PDB_DEFAULT);
1872 }
1873
1874 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1875 pdb_set_workstations(sampass, workstations, PDB_SET);
1876 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1877
1878 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1879 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1880 ret = False;
1881 goto done;
1882 }
1883 }
1884
1885 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1886 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1887 ret = False;
1888 goto done;
1889 }
1890 }
1891
1892 /* Change from V1 is addition of password history field. */
1893 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
1894 if (pwHistLen) {
1895 char *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1896 if (!pw_hist) {
1897 ret = False;
1898 goto done;
1899 }
1900 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1901 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1902 int i;
1903 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1904 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1905 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1906 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1907 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1908 PW_HISTORY_ENTRY_LEN);
1909 }
1910 }
1911 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1912 SAFE_FREE(pw_hist);
1913 ret = False;
1914 goto done;
1915 }
1916 SAFE_FREE(pw_hist);
1917 } else {
1918 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1919 }
1920
1921 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1922 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1923 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1924 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1925 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1926 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1927 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1928 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1929 pdb_set_hours(sampass, hours, PDB_SET);
1930
1931 done:
1932
1933 SAFE_FREE(username);
1934 SAFE_FREE(domain);
1935 SAFE_FREE(nt_username);
1936 SAFE_FREE(fullname);
1937 SAFE_FREE(homedir);
1938 SAFE_FREE(dir_drive);
1939 SAFE_FREE(logon_script);
1940 SAFE_FREE(profile_path);
1941 SAFE_FREE(acct_desc);
1942 SAFE_FREE(workstations);
1943 SAFE_FREE(munged_dial);
1944 SAFE_FREE(unknown_str);
1945 SAFE_FREE(lm_pw_ptr);
1946 SAFE_FREE(nt_pw_ptr);
1947 SAFE_FREE(nt_pw_hist_ptr);
1948 SAFE_FREE(hours);
1949
1950 return ret;
1951 }
1952
1953 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1954 {
1955 size_t len, buflen;
1956
1957 /* times are stored as 32bit integer
1958 take care on system with 64bit wide time_t
1959 --SSS */
1960 uint32 logon_time,
1961 logoff_time,
1962 kickoff_time,
1963 bad_password_time,
1964 pass_last_set_time,
1965 pass_can_change_time,
1966 pass_must_change_time;
1967
1968 uint32 user_rid, group_rid;
1969
1970 const char *username;
1971 const char *domain;
1972 const char *nt_username;
1973 const char *dir_drive;
1974 const char *unknown_str;
1975 const char *munged_dial;
1976 const char *fullname;
1977 const char *homedir;
1978 const char *logon_script;
1979 const char *profile_path;
1980 const char *acct_desc;
1981 const char *workstations;
1982 uint32 username_len, domain_len, nt_username_len,
1983 dir_drive_len, unknown_str_len, munged_dial_len,
1984 fullname_len, homedir_len, logon_script_len,
1985 profile_path_len, acct_desc_len, workstations_len;
1986
1987 const uint8 *lm_pw;
1988 const uint8 *nt_pw;
1989 const uint8 *nt_pw_hist;
1990 uint32 lm_pw_len = 16;
1991 uint32 nt_pw_len = 16;
1992 uint32 nt_pw_hist_len;
1993 uint32 pwHistLen = 0;
1994
1995 /* do we have a valid SAM_ACCOUNT pointer? */
1996 if (sampass == NULL) {
1997 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1998 return -1;
1999 }
2000
2001 *buf = NULL;
2002 buflen = 0;
2003
2004 logon_time = (uint32)pdb_get_logon_time(sampass);
2005 logoff_time = (uint32)pdb_get_logoff_time(sampass);
2006 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
2007 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
2008 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
2009 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
2010 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
2011
2012 user_rid = pdb_get_user_rid(sampass);
2013 group_rid = pdb_get_group_rid(sampass);
2014
2015 username = pdb_get_username(sampass);
2016 if (username) {
2017 username_len = strlen(username) +1;
2018 } else {
2019 username_len = 0;
2020 }
2021
2022 domain = pdb_get_domain(sampass);
2023 if (domain) {
2024 domain_len = strlen(domain) +1;
2025 } else {
2026 domain_len = 0;
2027 }
2028
2029 nt_username = pdb_get_nt_username(sampass);
2030 if (nt_username) {
2031 nt_username_len = strlen(nt_username) +1;
2032 } else {
2033 nt_username_len = 0;
2034 }
2035
2036 fullname = pdb_get_fullname(sampass);
2037 if (fullname) {
2038 fullname_len = strlen(fullname) +1;
2039 } else {
2040 fullname_len = 0;
2041 }
2042
2043 /*
2044 * Only updates fields which have been set (not defaults from smb.conf)
2045 */
2046
2047 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2048 dir_drive = pdb_get_dir_drive(sampass);
2049 } else {
2050 dir_drive = NULL;
2051 }
2052 if (dir_drive) {
2053 dir_drive_len = strlen(dir_drive) +1;
2054 } else {
2055 dir_drive_len = 0;
2056 }
2057
2058 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2059 homedir = pdb_get_homedir(sampass);
2060 } else {
2061 homedir = NULL;
2062 }
2063 if (homedir) {
2064 homedir_len = strlen(homedir) +1;
2065 } else {
2066 homedir_len = 0;
2067 }
2068
2069 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2070 logon_script = pdb_get_logon_script(sampass);
2071 } else {
2072 logon_script = NULL;
2073 }
2074 if (logon_script) {
2075 logon_script_len = strlen(logon_script) +1;
2076 } else {
2077 logon_script_len = 0;
2078 }
2079
2080 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2081 profile_path = pdb_get_profile_path(sampass);
2082 } else {
2083 profile_path = NULL;
2084 }
2085 if (profile_path) {
2086 profile_path_len = strlen(profile_path) +1;
2087 } else {
2088 profile_path_len = 0;
2089 }
2090
2091 lm_pw = pdb_get_lanman_passwd(sampass);
2092 if (!lm_pw) {
2093 lm_pw_len = 0;
2094 }
2095
2096 nt_pw = pdb_get_nt_passwd(sampass);
2097 if (!nt_pw) {
2098 nt_pw_len = 0;
2099 }
2100
2101 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
2102 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
2103 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2104 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2105 } else {
2106 nt_pw_hist_len = 0;
2107 }
2108
2109 acct_desc = pdb_get_acct_desc(sampass);
2110 if (acct_desc) {
2111 acct_desc_len = strlen(acct_desc) +1;
2112 } else {
2113 acct_desc_len = 0;
2114 }
2115
2116 workstations = pdb_get_workstations(sampass);
2117 if (workstations) {
2118 workstations_len = strlen(workstations) +1;
2119 } else {
2120 workstations_len = 0;
2121 }
2122
2123 unknown_str = NULL;
2124 unknown_str_len = 0;
2125
2126 munged_dial = pdb_get_munged_dial(sampass);
2127 if (munged_dial) {
2128 munged_dial_len = strlen(munged_dial) +1;
2129 } else {
2130 munged_dial_len = 0;
2131 }
2132
2133 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2134
2135 /* one time to get the size needed */
2136 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
2137 logon_time, /* d */
2138 logoff_time, /* d */
2139 kickoff_time, /* d */
2140 bad_password_time, /* d */
2141 pass_last_set_time, /* d */
2142 pass_can_change_time, /* d */
2143 pass_must_change_time, /* d */
2144 username_len, username, /* B */
2145 domain_len, domain, /* B */
2146 nt_username_len, nt_username, /* B */
2147 fullname_len, fullname, /* B */
2148 homedir_len, homedir, /* B */
2149 dir_drive_len, dir_drive, /* B */
2150 logon_script_len, logon_script, /* B */
2151 profile_path_len, profile_path, /* B */
2152 acct_desc_len, acct_desc, /* B */
2153 workstations_len, workstations, /* B */
2154 unknown_str_len, unknown_str, /* B */
2155 munged_dial_len, munged_dial, /* B */
2156 user_rid, /* d */
2157 group_rid, /* d */
2158 lm_pw_len, lm_pw, /* B */
2159 nt_pw_len, nt_pw, /* B */
2160 nt_pw_hist_len, nt_pw_hist, /* B */
2161 pdb_get_acct_ctrl(sampass), /* w */
2162 pdb_get_logon_divs(sampass), /* w */
2163 pdb_get_hours_len(sampass), /* d */
2164 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2165 pdb_get_bad_password_count(sampass), /* w */
2166 pdb_get_logon_count(sampass), /* w */
2167 pdb_get_unknown_6(sampass)); /* d */
2168
2169 if (size_only) {
2170 return buflen;
2171 }
2172
2173 /* malloc the space needed */
2174 if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2175 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2176 return (-1);
2177 }
2178
2179 /* now for the real call to tdb_pack() */
2180 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
2181 logon_time, /* d */
2182 logoff_time, /* d */
2183 kickoff_time, /* d */
2184 bad_password_time, /* d */
2185 pass_last_set_time, /* d */
2186 pass_can_change_time, /* d */
2187 pass_must_change_time, /* d */
2188 username_len, username, /* B */
2189 domain_len, domain, /* B */
2190 nt_username_len, nt_username, /* B */
2191 fullname_len, fullname, /* B */
2192 homedir_len, homedir, /* B */
2193 dir_drive_len, dir_drive, /* B */
2194 logon_script_len, logon_script, /* B */
2195 profile_path_len, profile_path, /* B */
2196 acct_desc_len, acct_desc, /* B */
2197 workstations_len, workstations, /* B */
2198 unknown_str_len, unknown_str, /* B */
2199 munged_dial_len, munged_dial, /* B */
2200 user_rid, /* d */
2201 group_rid, /* d */
2202 lm_pw_len, lm_pw, /* B */
2203 nt_pw_len, nt_pw, /* B */
2204 nt_pw_hist_len, nt_pw_hist, /* B */
2205 pdb_get_acct_ctrl(sampass), /* w */
2206 pdb_get_logon_divs(sampass), /* w */
2207 pdb_get_hours_len(sampass), /* d */
2208 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2209 pdb_get_bad_password_count(sampass), /* w */
2210 pdb_get_logon_count(sampass), /* w */
2211 pdb_get_unknown_6(sampass)); /* d */
2212
2213 /* check to make sure we got it correct */
2214 if (buflen != len) {
2215 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2216 (unsigned long)buflen, (unsigned long)len));
2217 /* error */
2218 SAFE_FREE (*buf);
2219 return (-1);
2220 }
2221
2222 return (buflen);
2223 }
2224
2225 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2226 {
2227 BOOL result;
2228 uint8 *buf;
2229 int len;
2230
2231 if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2232 return False;
2233
2234 len = init_buffer_from_sam_v2(&buf, src, False);
2235
2236 if (len == -1)
2237 return False;
2238
2239 result = init_sam_from_buffer_v2(*dst, buf, len);
2240 (*dst)->methods = src->methods;
2241
2242 free(buf);
2243
2244 return result;
2245 }
2246
2247 /**********************************************************************
2248 **********************************************************************/
2249
2250 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2251 {
2252 uid_t u_low, u_high;
2253 gid_t g_low, g_high;
2254
2255 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2256 return False;
2257 }
2258
2259 *low = (u_low < g_low) ? u_low : g_low;
2260 *high = (u_high < g_high) ? u_high : g_high;
2261
2262 return True;
2263 }
2264
2265 /******************************************************************
2266 Get the the non-algorithmic RID range if idmap range are defined
2267 ******************************************************************/
2268
2269 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2270 {
2271 uint32 id_low, id_high;
2272
2273 if (!lp_enable_rid_algorithm()) {
2274 *low = BASE_RID;
2275 *high = (uint32)-1;
2276 }
2277
2278 if (!get_free_ugid_range(&id_low, &id_high)) {
2279 return False;
2280 }
2281
2282 *low = algorithmic_pdb_uid_to_user_rid(id_low);
2283 if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2284 *high = (uint32)-1;
2285 } else {
2286 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2287 }
2288
2289 return True;
2290 }
2291
2292 /*********************************************************************
2293 Update the bad password count checking the AP_RESET_COUNT_TIME
2294 *********************************************************************/
2295
2296 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2297 {
2298 time_t LastBadPassword;
2299 uint16 BadPasswordCount;
2300 uint32 resettime;
2301
2302 if (!sampass) return False;
2303
2304 BadPasswordCount = pdb_get_bad_password_count(sampass);
2305 if (!BadPasswordCount) {
2306 DEBUG(9, ("No bad password attempts.\n"));
2307 return True;
2308 }
2309
2310 if (!account_policy_get(AP_RESET_COUNT_TIME, &resettime)) {
2311 DEBUG(0, ("pdb_update_bad_password_count: account_policy_get failed.\n"));
2312 return False;
2313 }
2314
2315 /* First, check if there is a reset time to compare */
2316 if ((resettime == (uint32) -1) || (resettime == 0)) {
2317 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2318 return True;
2319 }
2320
2321 LastBadPassword = pdb_get_bad_password_time(sampass);
2322 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2323 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2324 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2325 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2326 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2327 if (updated) {
2328 *updated = True;
2329 }
2330 }
2331
2332 return True;
2333 }
2334
2335 /*********************************************************************
2336 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2337 *********************************************************************/
2338
2339 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2340 {
2341 uint32 duration;
2342 time_t LastBadPassword;
2343
2344 if (!sampass) return False;
2345
2346 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2347 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2348 pdb_get_username(sampass)));
2349 return True;
2350 }
2351
2352 if (!account_policy_get(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2353 DEBUG(0, ("pdb_update_autolock_flag: account_policy_get failed.\n"));
2354 return False;
2355 }
2356
2357 /* First, check if there is a duration to compare */
2358 if ((duration == (uint32) -1) || (duration == 0)) {
2359 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2360 return True;
2361 }
2362
2363 LastBadPassword = pdb_get_bad_password_time(sampass);
2364 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2365 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2366
2367 if (LastBadPassword == (time_t)0) {
2368 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2369 bad password time. Leaving locked out.\n",
2370 pdb_get_username(sampass) ));
2371 return True;
2372 }
2373
2374 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2375 pdb_set_acct_ctrl(sampass,
2376 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2377 PDB_CHANGED);
2378 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2379 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2380 if (updated) {
2381 *updated = True;
2382 }
2383 }
2384
2385 return True;
2386 }
2387
2388 /*********************************************************************
2389 Increment the bad_password_count
2390 *********************************************************************/
2391
2392 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2393 {
2394 uint32 account_policy_lockout;
2395 BOOL autolock_updated = False, badpw_updated = False;
2396
2397 if (!sampass)
2398 return False;
2399
2400 /* Retrieve the account lockout policy */
2401 if (!account_policy_get(AP_BAD_ATTEMPT_LOCKOUT,
2402 &account_policy_lockout)) {
2403 DEBUG(0, ("pdb_increment_bad_password_count: account_policy_get failed.\n"));
2404 return False;
2405 }
2406
2407 /* If there is no policy, we don't need to continue checking */
2408 if (!account_policy_lockout) {
2409 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2410 return True;
2411 }
2412
2413 /* Check if the autolock needs to be cleared */
2414 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2415 return False;
2416
2417 /* Check if the badpw count needs to be reset */
2418 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2419 return False;
2420
2421 /*
2422 Ok, now we can assume that any resetting that needs to be
2423 done has been done, and just get on with incrementing
2424 and autolocking if necessary
2425 */
2426
2427 pdb_set_bad_password_count(sampass,
2428 pdb_get_bad_password_count(sampass)+1,
2429 PDB_CHANGED);
2430 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2431
2432
2433 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2434 return True;
2435
2436 if (!pdb_set_acct_ctrl(sampass,
2437 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2438 PDB_CHANGED)) {
2439 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2440 return False;
2441 }
2442
2443 return True;
2444 }