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r6303: Setting up for 3.0.15pre1
[Samba.git] / source / passdb / passdb.c
blob203fa2bf21e8b46f5ffac21978ef24a83a31a22a
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 algorithmic_uid_to_sid( psid, uid);
1156 }
1157
1158 pdb_free_sam(&sampw);
1159
1160 DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
1161 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1162
1163 return psid;
1164 }
1165
1166 /****************************************************************************
1167 Convert a SID to uid - locally.
1168 ****************************************************************************/
1169
1170 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1171 {
1172 SAM_ACCOUNT *sampw = NULL;
1173 struct passwd *unix_pw;
1174 const char *user_name;
1175
1176 *name_type = SID_NAME_UNKNOWN;
1177
1178 /*
1179 * We can only convert to a uid if this is our local
1180 * Domain SID (ie. we are the controling authority).
1181 */
1182 if (!sid_check_is_in_our_domain(psid) ) {
1183 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1184 return False;
1185 }
1186
1187 /* lookup the user account */
1188
1189 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1190 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1191 return False;
1192 }
1193
1194 become_root();
1195 if ( !pdb_getsampwsid(sampw, psid) ) {
1196 unbecome_root();
1197 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1198 sid_string_static(psid)));
1199 return False;
1200 }
1201 unbecome_root();
1202
1203 user_name = pdb_get_username(sampw);
1204
1205 unix_pw = sys_getpwnam( user_name );
1206
1207 if ( !unix_pw ) {
1208 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1209 user_name));
1210 pdb_free_sam( &sampw );
1211 return False;
1212 }
1213
1214 *puid = unix_pw->pw_uid;
1215
1216 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1217 (unsigned int)*puid, user_name ));
1218
1219 *name_type = SID_NAME_USER;
1220
1221 return True;
1222 }
1223
1224 /****************************************************************************
1225 Convert a gid to SID - algorithmic.
1226 ****************************************************************************/
1227
1228 DOM_SID *algorithmic_gid_to_sid(DOM_SID *psid, uid_t gid)
1229 {
1230 if ( !lp_enable_rid_algorithm() )
1231 return NULL;
1232
1233 DEBUG(8,("algorithmic_gid_to_sid: falling back to RID algorithm\n"));
1234 sid_copy( psid, get_global_sam_sid() );
1235 sid_append_rid( psid, pdb_gid_to_group_rid(gid) );
1236 DEBUG(10,("algorithmic_gid_to_sid: gid (%d) -> SID %s.\n",
1237 (unsigned int)gid, sid_string_static(psid) ));
1238
1239 return psid;
1240 }
1241
1242 /****************************************************************************
1243 Convert a gid to SID - locally.
1244 ****************************************************************************/
1245
1246 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1247 {
1248 GROUP_MAP group;
1249 BOOL ret;
1250
1251 /* we don't need to disable winbindd since the gid is stored in
1252 the GROUP_MAP object */
1253
1254 /* done as root since ldap backend requires root to open a connection */
1255
1256 become_root();
1257 ret = pdb_getgrgid( &group, gid );
1258 unbecome_root();
1259
1260 if ( !ret ) {
1261
1262 /* algorithmic to rid mapping if enabled */
1263
1264 if ( lp_enable_rid_algorithm() ) {
1265
1266 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1267 (unsigned int)gid, sid_string_static(psid)));
1268
1269 return algorithmic_gid_to_sid(psid, gid);
1270 }
1271 else
1272 return NULL;
1273 }
1274
1275 sid_copy( psid, &group.sid );
1276
1277 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1278 (unsigned int)gid, sid_string_static(psid)));
1279
1280 return psid;
1281 }
1282
1283 /****************************************************************************
1284 Convert a SID to gid - locally.
1285 ****************************************************************************/
1286
1287 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1288 {
1289 uint32 rid;
1290 GROUP_MAP group;
1291 BOOL ret;
1292
1293 *name_type = SID_NAME_UNKNOWN;
1294
1295 /* This call can enumerate group mappings for foreign sids as well.
1296 So don't check for a match against our domain SID */
1297
1298 /* we don't need to disable winbindd since the gid is stored in
1299 the GROUP_MAP object */
1300
1301 become_root();
1302 ret = pdb_getgrsid(&group, *psid);
1303 unbecome_root();
1304
1305 if ( !ret ) {
1306
1307 /* Fallback to algorithmic rid mapping if enabled */
1308
1309 if ( lp_enable_rid_algorithm() ) {
1310
1311 if (!sid_check_is_in_our_domain(psid) ) {
1312 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1313 return False;
1314 }
1315
1316 if (!sid_peek_rid(psid, &rid)) {
1317 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1318 return False;
1319 }
1320
1321 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1322
1323 if (algorithmic_pdb_rid_is_user(rid)) {
1324 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1325 return False;
1326 } else {
1327 *pgid = pdb_group_rid_to_gid(rid);
1328 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1329 return True;
1330 }
1331 }
1332
1333 return False;
1334 }
1335
1336 *pgid = group.gid;
1337 *name_type = group.sid_name_use;
1338
1339 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1340 (unsigned int)*pgid));
1341
1342 return True;
1343 }
1344
1345 /**********************************************************************
1346 Marshall/unmarshall SAM_ACCOUNT structs.
1347 *********************************************************************/
1348
1349 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1350 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1351 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1352
1353 /**********************************************************************
1354 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1355 *********************************************************************/
1356
1357 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1358 {
1359 return(init_sam_from_buffer_v2(sampass, buf, buflen));
1360 }
1361
1362 /**********************************************************************
1363 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1364 *********************************************************************/
1365
1366 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1367 {
1368 return(init_buffer_from_sam_v2(buf, sampass, size_only));
1369 }
1370
1371
1372 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1373 {
1374
1375 /* times are stored as 32bit integer
1376 take care on system with 64bit wide time_t
1377 --SSS */
1378 uint32 logon_time,
1379 logoff_time,
1380 kickoff_time,
1381 pass_last_set_time,
1382 pass_can_change_time,
1383 pass_must_change_time;
1384 char *username = NULL;
1385 char *domain = NULL;
1386 char *nt_username = NULL;
1387 char *dir_drive = NULL;
1388 char *unknown_str = NULL;
1389 char *munged_dial = NULL;
1390 char *fullname = NULL;
1391 char *homedir = NULL;
1392 char *logon_script = NULL;
1393 char *profile_path = NULL;
1394 char *acct_desc = NULL;
1395 char *workstations = NULL;
1396 uint32 username_len, domain_len, nt_username_len,
1397 dir_drive_len, unknown_str_len, munged_dial_len,
1398 fullname_len, homedir_len, logon_script_len,
1399 profile_path_len, acct_desc_len, workstations_len;
1400
1401 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1402 uint16 acct_ctrl, logon_divs;
1403 uint16 bad_password_count, logon_count;
1404 uint8 *hours = NULL;
1405 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1406 uint32 len = 0;
1407 uint32 lm_pw_len, nt_pw_len, hourslen;
1408 BOOL ret = True;
1409
1410 if(sampass == NULL || buf == NULL) {
1411 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1412 return False;
1413 }
1414
1415 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1416
1417 /* unpack the buffer into variables */
1418 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1419 &logon_time, /* d */
1420 &logoff_time, /* d */
1421 &kickoff_time, /* d */
1422 &pass_last_set_time, /* d */
1423 &pass_can_change_time, /* d */
1424 &pass_must_change_time, /* d */
1425 &username_len, &username, /* B */
1426 &domain_len, &domain, /* B */
1427 &nt_username_len, &nt_username, /* B */
1428 &fullname_len, &fullname, /* B */
1429 &homedir_len, &homedir, /* B */
1430 &dir_drive_len, &dir_drive, /* B */
1431 &logon_script_len, &logon_script, /* B */
1432 &profile_path_len, &profile_path, /* B */
1433 &acct_desc_len, &acct_desc, /* B */
1434 &workstations_len, &workstations, /* B */
1435 &unknown_str_len, &unknown_str, /* B */
1436 &munged_dial_len, &munged_dial, /* B */
1437 &user_rid, /* d */
1438 &group_rid, /* d */
1439 &lm_pw_len, &lm_pw_ptr, /* B */
1440 &nt_pw_len, &nt_pw_ptr, /* B */
1441 &acct_ctrl, /* w */
1442 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1443 &logon_divs, /* w */
1444 &hours_len, /* d */
1445 &hourslen, &hours, /* B */
1446 &bad_password_count, /* w */
1447 &logon_count, /* w */
1448 &unknown_6); /* d */
1449
1450 if (len == (uint32) -1) {
1451 ret = False;
1452 goto done;
1453 }
1454
1455 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1456 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1457 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1458 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1459 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1460 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1461
1462 pdb_set_username(sampass, username, PDB_SET);
1463 pdb_set_domain(sampass, domain, PDB_SET);
1464 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1465 pdb_set_fullname(sampass, fullname, PDB_SET);
1466
1467 if (homedir) {
1468 pdb_set_homedir(sampass, homedir, PDB_SET);
1469 }
1470 else {
1471 pdb_set_homedir(sampass,
1472 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1473 PDB_DEFAULT);
1474 }
1475
1476 if (dir_drive)
1477 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1478 else {
1479 pdb_set_dir_drive(sampass,
1480 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1481 PDB_DEFAULT);
1482 }
1483
1484 if (logon_script)
1485 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1486 else {
1487 pdb_set_logon_script(sampass,
1488 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1489 PDB_DEFAULT);
1490 }
1491
1492 if (profile_path) {
1493 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1494 } else {
1495 pdb_set_profile_path(sampass,
1496 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1497 PDB_DEFAULT);
1498 }
1499
1500 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1501 pdb_set_workstations(sampass, workstations, PDB_SET);
1502 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1503
1504 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1505 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1506 ret = False;
1507 goto done;
1508 }
1509 }
1510
1511 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1512 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1513 ret = False;
1514 goto done;
1515 }
1516 }
1517
1518 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1519 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1520 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1521 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1522 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1523 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1524 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1525 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1526 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1527 pdb_set_hours(sampass, hours, PDB_SET);
1528
1529 done:
1530
1531 SAFE_FREE(username);
1532 SAFE_FREE(domain);
1533 SAFE_FREE(nt_username);
1534 SAFE_FREE(fullname);
1535 SAFE_FREE(homedir);
1536 SAFE_FREE(dir_drive);
1537 SAFE_FREE(logon_script);
1538 SAFE_FREE(profile_path);
1539 SAFE_FREE(acct_desc);
1540 SAFE_FREE(workstations);
1541 SAFE_FREE(munged_dial);
1542 SAFE_FREE(unknown_str);
1543 SAFE_FREE(lm_pw_ptr);
1544 SAFE_FREE(nt_pw_ptr);
1545 SAFE_FREE(hours);
1546
1547 return ret;
1548 }
1549
1550 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1551 {
1552
1553 /* times are stored as 32bit integer
1554 take care on system with 64bit wide time_t
1555 --SSS */
1556 uint32 logon_time,
1557 logoff_time,
1558 kickoff_time,
1559 bad_password_time,
1560 pass_last_set_time,
1561 pass_can_change_time,
1562 pass_must_change_time;
1563 char *username = NULL;
1564 char *domain = NULL;
1565 char *nt_username = NULL;
1566 char *dir_drive = NULL;
1567 char *unknown_str = NULL;
1568 char *munged_dial = NULL;
1569 char *fullname = NULL;
1570 char *homedir = NULL;
1571 char *logon_script = NULL;
1572 char *profile_path = NULL;
1573 char *acct_desc = NULL;
1574 char *workstations = NULL;
1575 uint32 username_len, domain_len, nt_username_len,
1576 dir_drive_len, unknown_str_len, munged_dial_len,
1577 fullname_len, homedir_len, logon_script_len,
1578 profile_path_len, acct_desc_len, workstations_len;
1579
1580 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1581 uint16 acct_ctrl, logon_divs;
1582 uint16 bad_password_count, logon_count;
1583 uint8 *hours = NULL;
1584 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1585 uint32 len = 0;
1586 uint32 lm_pw_len, nt_pw_len, hourslen;
1587 BOOL ret = True;
1588
1589 if(sampass == NULL || buf == NULL) {
1590 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1591 return False;
1592 }
1593
1594 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1595
1596 /* unpack the buffer into variables */
1597 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1598 &logon_time, /* d */
1599 &logoff_time, /* d */
1600 &kickoff_time, /* d */
1601 /* Change from V0 is addition of bad_password_time field. */
1602 &bad_password_time, /* d */
1603 &pass_last_set_time, /* d */
1604 &pass_can_change_time, /* d */
1605 &pass_must_change_time, /* d */
1606 &username_len, &username, /* B */
1607 &domain_len, &domain, /* B */
1608 &nt_username_len, &nt_username, /* B */
1609 &fullname_len, &fullname, /* B */
1610 &homedir_len, &homedir, /* B */
1611 &dir_drive_len, &dir_drive, /* B */
1612 &logon_script_len, &logon_script, /* B */
1613 &profile_path_len, &profile_path, /* B */
1614 &acct_desc_len, &acct_desc, /* B */
1615 &workstations_len, &workstations, /* B */
1616 &unknown_str_len, &unknown_str, /* B */
1617 &munged_dial_len, &munged_dial, /* B */
1618 &user_rid, /* d */
1619 &group_rid, /* d */
1620 &lm_pw_len, &lm_pw_ptr, /* B */
1621 &nt_pw_len, &nt_pw_ptr, /* B */
1622 &acct_ctrl, /* w */
1623 &remove_me, /* d */
1624 &logon_divs, /* w */
1625 &hours_len, /* d */
1626 &hourslen, &hours, /* B */
1627 &bad_password_count, /* w */
1628 &logon_count, /* w */
1629 &unknown_6); /* d */
1630
1631 if (len == (uint32) -1) {
1632 ret = False;
1633 goto done;
1634 }
1635
1636 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1637 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1638 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1639
1640 /* Change from V0 is addition of bad_password_time field. */
1641 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1642 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1643 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1644 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1645
1646 pdb_set_username(sampass, username, PDB_SET);
1647 pdb_set_domain(sampass, domain, PDB_SET);
1648 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1649 pdb_set_fullname(sampass, fullname, PDB_SET);
1650
1651 if (homedir) {
1652 pdb_set_homedir(sampass, homedir, PDB_SET);
1653 }
1654 else {
1655 pdb_set_homedir(sampass,
1656 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1657 PDB_DEFAULT);
1658 }
1659
1660 if (dir_drive)
1661 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1662 else {
1663 pdb_set_dir_drive(sampass,
1664 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1665 PDB_DEFAULT);
1666 }
1667
1668 if (logon_script)
1669 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1670 else {
1671 pdb_set_logon_script(sampass,
1672 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1673 PDB_DEFAULT);
1674 }
1675
1676 if (profile_path) {
1677 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1678 } else {
1679 pdb_set_profile_path(sampass,
1680 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1681 PDB_DEFAULT);
1682 }
1683
1684 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1685 pdb_set_workstations(sampass, workstations, PDB_SET);
1686 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1687
1688 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1689 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1690 ret = False;
1691 goto done;
1692 }
1693 }
1694
1695 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1696 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1697 ret = False;
1698 goto done;
1699 }
1700 }
1701
1702 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1703
1704 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1705 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1706 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1707 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1708 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1709 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1710 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1711 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1712 pdb_set_hours(sampass, hours, PDB_SET);
1713
1714 done:
1715
1716 SAFE_FREE(username);
1717 SAFE_FREE(domain);
1718 SAFE_FREE(nt_username);
1719 SAFE_FREE(fullname);
1720 SAFE_FREE(homedir);
1721 SAFE_FREE(dir_drive);
1722 SAFE_FREE(logon_script);
1723 SAFE_FREE(profile_path);
1724 SAFE_FREE(acct_desc);
1725 SAFE_FREE(workstations);
1726 SAFE_FREE(munged_dial);
1727 SAFE_FREE(unknown_str);
1728 SAFE_FREE(lm_pw_ptr);
1729 SAFE_FREE(nt_pw_ptr);
1730 SAFE_FREE(hours);
1731
1732 return ret;
1733 }
1734
1735
1736 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1737 {
1738
1739 /* times are stored as 32bit integer
1740 take care on system with 64bit wide time_t
1741 --SSS */
1742 uint32 logon_time,
1743 logoff_time,
1744 kickoff_time,
1745 bad_password_time,
1746 pass_last_set_time,
1747 pass_can_change_time,
1748 pass_must_change_time;
1749 char *username = NULL;
1750 char *domain = NULL;
1751 char *nt_username = NULL;
1752 char *dir_drive = NULL;
1753 char *unknown_str = NULL;
1754 char *munged_dial = NULL;
1755 char *fullname = NULL;
1756 char *homedir = NULL;
1757 char *logon_script = NULL;
1758 char *profile_path = NULL;
1759 char *acct_desc = NULL;
1760 char *workstations = NULL;
1761 uint32 username_len, domain_len, nt_username_len,
1762 dir_drive_len, unknown_str_len, munged_dial_len,
1763 fullname_len, homedir_len, logon_script_len,
1764 profile_path_len, acct_desc_len, workstations_len;
1765
1766 uint32 user_rid, group_rid, hours_len, unknown_6;
1767 uint16 acct_ctrl, logon_divs;
1768 uint16 bad_password_count, logon_count;
1769 uint8 *hours = NULL;
1770 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1771 uint32 len = 0;
1772 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1773 uint32 pwHistLen = 0;
1774 BOOL ret = True;
1775 fstring tmpstring;
1776
1777 if(sampass == NULL || buf == NULL) {
1778 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1779 return False;
1780 }
1781
1782 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1783
1784 /* unpack the buffer into variables */
1785 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1786 &logon_time, /* d */
1787 &logoff_time, /* d */
1788 &kickoff_time, /* d */
1789 &bad_password_time, /* d */
1790 &pass_last_set_time, /* d */
1791 &pass_can_change_time, /* d */
1792 &pass_must_change_time, /* d */
1793 &username_len, &username, /* B */
1794 &domain_len, &domain, /* B */
1795 &nt_username_len, &nt_username, /* B */
1796 &fullname_len, &fullname, /* B */
1797 &homedir_len, &homedir, /* B */
1798 &dir_drive_len, &dir_drive, /* B */
1799 &logon_script_len, &logon_script, /* B */
1800 &profile_path_len, &profile_path, /* B */
1801 &acct_desc_len, &acct_desc, /* B */
1802 &workstations_len, &workstations, /* B */
1803 &unknown_str_len, &unknown_str, /* B */
1804 &munged_dial_len, &munged_dial, /* B */
1805 &user_rid, /* d */
1806 &group_rid, /* d */
1807 &lm_pw_len, &lm_pw_ptr, /* B */
1808 &nt_pw_len, &nt_pw_ptr, /* B */
1809 /* Change from V1 is addition of password history field. */
1810 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1811 &acct_ctrl, /* w */
1812 /* Also "remove_me" field was removed. */
1813 &logon_divs, /* w */
1814 &hours_len, /* d */
1815 &hourslen, &hours, /* B */
1816 &bad_password_count, /* w */
1817 &logon_count, /* w */
1818 &unknown_6); /* d */
1819
1820 if (len == (uint32) -1) {
1821 ret = False;
1822 goto done;
1823 }
1824
1825 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1826 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1827 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1828 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1829 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1830 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1831 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1832
1833 pdb_set_username(sampass, username, PDB_SET);
1834 pdb_set_domain(sampass, domain, PDB_SET);
1835 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1836 pdb_set_fullname(sampass, fullname, PDB_SET);
1837
1838 if (homedir) {
1839 fstrcpy( tmpstring, homedir );
1840 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1841 pdb_set_homedir(sampass, tmpstring, PDB_SET);
1842 }
1843 else {
1844 pdb_set_homedir(sampass,
1845 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1846 PDB_DEFAULT);
1847 }
1848
1849 if (dir_drive)
1850 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1851 else
1852 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1853
1854 if (logon_script) {
1855 fstrcpy( tmpstring, logon_script );
1856 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1857 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
1858 }
1859 else {
1860 pdb_set_logon_script(sampass,
1861 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1862 PDB_DEFAULT);
1863 }
1864
1865 if (profile_path) {
1866 fstrcpy( tmpstring, profile_path );
1867 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1868 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
1869 }
1870 else {
1871 pdb_set_profile_path(sampass,
1872 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1873 PDB_DEFAULT);
1874 }
1875
1876 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1877 pdb_set_workstations(sampass, workstations, PDB_SET);
1878 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1879
1880 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1881 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1882 ret = False;
1883 goto done;
1884 }
1885 }
1886
1887 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1888 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1889 ret = False;
1890 goto done;
1891 }
1892 }
1893
1894 /* Change from V1 is addition of password history field. */
1895 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
1896 if (pwHistLen) {
1897 uint8 *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1898 if (!pw_hist) {
1899 ret = False;
1900 goto done;
1901 }
1902 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1903 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1904 int i;
1905 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1906 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1907 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1908 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1909 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1910 PW_HISTORY_ENTRY_LEN);
1911 }
1912 }
1913 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1914 SAFE_FREE(pw_hist);
1915 ret = False;
1916 goto done;
1917 }
1918 SAFE_FREE(pw_hist);
1919 } else {
1920 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1921 }
1922
1923 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1924 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1925 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1926 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1927 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1928 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1929 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1930 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1931 pdb_set_hours(sampass, hours, PDB_SET);
1932
1933 done:
1934
1935 SAFE_FREE(username);
1936 SAFE_FREE(domain);
1937 SAFE_FREE(nt_username);
1938 SAFE_FREE(fullname);
1939 SAFE_FREE(homedir);
1940 SAFE_FREE(dir_drive);
1941 SAFE_FREE(logon_script);
1942 SAFE_FREE(profile_path);
1943 SAFE_FREE(acct_desc);
1944 SAFE_FREE(workstations);
1945 SAFE_FREE(munged_dial);
1946 SAFE_FREE(unknown_str);
1947 SAFE_FREE(lm_pw_ptr);
1948 SAFE_FREE(nt_pw_ptr);
1949 SAFE_FREE(nt_pw_hist_ptr);
1950 SAFE_FREE(hours);
1951
1952 return ret;
1953 }
1954
1955 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1956 {
1957 size_t len, buflen;
1958
1959 /* times are stored as 32bit integer
1960 take care on system with 64bit wide time_t
1961 --SSS */
1962 uint32 logon_time,
1963 logoff_time,
1964 kickoff_time,
1965 bad_password_time,
1966 pass_last_set_time,
1967 pass_can_change_time,
1968 pass_must_change_time;
1969
1970 uint32 user_rid, group_rid;
1971
1972 const char *username;
1973 const char *domain;
1974 const char *nt_username;
1975 const char *dir_drive;
1976 const char *unknown_str;
1977 const char *munged_dial;
1978 const char *fullname;
1979 const char *homedir;
1980 const char *logon_script;
1981 const char *profile_path;
1982 const char *acct_desc;
1983 const char *workstations;
1984 uint32 username_len, domain_len, nt_username_len,
1985 dir_drive_len, unknown_str_len, munged_dial_len,
1986 fullname_len, homedir_len, logon_script_len,
1987 profile_path_len, acct_desc_len, workstations_len;
1988
1989 const uint8 *lm_pw;
1990 const uint8 *nt_pw;
1991 const uint8 *nt_pw_hist;
1992 uint32 lm_pw_len = 16;
1993 uint32 nt_pw_len = 16;
1994 uint32 nt_pw_hist_len;
1995 uint32 pwHistLen = 0;
1996
1997 /* do we have a valid SAM_ACCOUNT pointer? */
1998 if (sampass == NULL) {
1999 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
2000 return -1;
2001 }
2002
2003 *buf = NULL;
2004 buflen = 0;
2005
2006 logon_time = (uint32)pdb_get_logon_time(sampass);
2007 logoff_time = (uint32)pdb_get_logoff_time(sampass);
2008 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
2009 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
2010 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
2011 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
2012 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
2013
2014 user_rid = pdb_get_user_rid(sampass);
2015 group_rid = pdb_get_group_rid(sampass);
2016
2017 username = pdb_get_username(sampass);
2018 if (username) {
2019 username_len = strlen(username) +1;
2020 } else {
2021 username_len = 0;
2022 }
2023
2024 domain = pdb_get_domain(sampass);
2025 if (domain) {
2026 domain_len = strlen(domain) +1;
2027 } else {
2028 domain_len = 0;
2029 }
2030
2031 nt_username = pdb_get_nt_username(sampass);
2032 if (nt_username) {
2033 nt_username_len = strlen(nt_username) +1;
2034 } else {
2035 nt_username_len = 0;
2036 }
2037
2038 fullname = pdb_get_fullname(sampass);
2039 if (fullname) {
2040 fullname_len = strlen(fullname) +1;
2041 } else {
2042 fullname_len = 0;
2043 }
2044
2045 /*
2046 * Only updates fields which have been set (not defaults from smb.conf)
2047 */
2048
2049 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2050 dir_drive = pdb_get_dir_drive(sampass);
2051 } else {
2052 dir_drive = NULL;
2053 }
2054 if (dir_drive) {
2055 dir_drive_len = strlen(dir_drive) +1;
2056 } else {
2057 dir_drive_len = 0;
2058 }
2059
2060 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2061 homedir = pdb_get_homedir(sampass);
2062 } else {
2063 homedir = NULL;
2064 }
2065 if (homedir) {
2066 homedir_len = strlen(homedir) +1;
2067 } else {
2068 homedir_len = 0;
2069 }
2070
2071 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2072 logon_script = pdb_get_logon_script(sampass);
2073 } else {
2074 logon_script = NULL;
2075 }
2076 if (logon_script) {
2077 logon_script_len = strlen(logon_script) +1;
2078 } else {
2079 logon_script_len = 0;
2080 }
2081
2082 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2083 profile_path = pdb_get_profile_path(sampass);
2084 } else {
2085 profile_path = NULL;
2086 }
2087 if (profile_path) {
2088 profile_path_len = strlen(profile_path) +1;
2089 } else {
2090 profile_path_len = 0;
2091 }
2092
2093 lm_pw = pdb_get_lanman_passwd(sampass);
2094 if (!lm_pw) {
2095 lm_pw_len = 0;
2096 }
2097
2098 nt_pw = pdb_get_nt_passwd(sampass);
2099 if (!nt_pw) {
2100 nt_pw_len = 0;
2101 }
2102
2103 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
2104 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
2105 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2106 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2107 } else {
2108 nt_pw_hist_len = 0;
2109 }
2110
2111 acct_desc = pdb_get_acct_desc(sampass);
2112 if (acct_desc) {
2113 acct_desc_len = strlen(acct_desc) +1;
2114 } else {
2115 acct_desc_len = 0;
2116 }
2117
2118 workstations = pdb_get_workstations(sampass);
2119 if (workstations) {
2120 workstations_len = strlen(workstations) +1;
2121 } else {
2122 workstations_len = 0;
2123 }
2124
2125 unknown_str = NULL;
2126 unknown_str_len = 0;
2127
2128 munged_dial = pdb_get_munged_dial(sampass);
2129 if (munged_dial) {
2130 munged_dial_len = strlen(munged_dial) +1;
2131 } else {
2132 munged_dial_len = 0;
2133 }
2134
2135 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2136
2137 /* one time to get the size needed */
2138 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
2139 logon_time, /* d */
2140 logoff_time, /* d */
2141 kickoff_time, /* d */
2142 bad_password_time, /* d */
2143 pass_last_set_time, /* d */
2144 pass_can_change_time, /* d */
2145 pass_must_change_time, /* d */
2146 username_len, username, /* B */
2147 domain_len, domain, /* B */
2148 nt_username_len, nt_username, /* B */
2149 fullname_len, fullname, /* B */
2150 homedir_len, homedir, /* B */
2151 dir_drive_len, dir_drive, /* B */
2152 logon_script_len, logon_script, /* B */
2153 profile_path_len, profile_path, /* B */
2154 acct_desc_len, acct_desc, /* B */
2155 workstations_len, workstations, /* B */
2156 unknown_str_len, unknown_str, /* B */
2157 munged_dial_len, munged_dial, /* B */
2158 user_rid, /* d */
2159 group_rid, /* d */
2160 lm_pw_len, lm_pw, /* B */
2161 nt_pw_len, nt_pw, /* B */
2162 nt_pw_hist_len, nt_pw_hist, /* B */
2163 pdb_get_acct_ctrl(sampass), /* w */
2164 pdb_get_logon_divs(sampass), /* w */
2165 pdb_get_hours_len(sampass), /* d */
2166 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2167 pdb_get_bad_password_count(sampass), /* w */
2168 pdb_get_logon_count(sampass), /* w */
2169 pdb_get_unknown_6(sampass)); /* d */
2170
2171 if (size_only) {
2172 return buflen;
2173 }
2174
2175 /* malloc the space needed */
2176 if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2177 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2178 return (-1);
2179 }
2180
2181 /* now for the real call to tdb_pack() */
2182 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
2183 logon_time, /* d */
2184 logoff_time, /* d */
2185 kickoff_time, /* d */
2186 bad_password_time, /* d */
2187 pass_last_set_time, /* d */
2188 pass_can_change_time, /* d */
2189 pass_must_change_time, /* d */
2190 username_len, username, /* B */
2191 domain_len, domain, /* B */
2192 nt_username_len, nt_username, /* B */
2193 fullname_len, fullname, /* B */
2194 homedir_len, homedir, /* B */
2195 dir_drive_len, dir_drive, /* B */
2196 logon_script_len, logon_script, /* B */
2197 profile_path_len, profile_path, /* B */
2198 acct_desc_len, acct_desc, /* B */
2199 workstations_len, workstations, /* B */
2200 unknown_str_len, unknown_str, /* B */
2201 munged_dial_len, munged_dial, /* B */
2202 user_rid, /* d */
2203 group_rid, /* d */
2204 lm_pw_len, lm_pw, /* B */
2205 nt_pw_len, nt_pw, /* B */
2206 nt_pw_hist_len, nt_pw_hist, /* B */
2207 pdb_get_acct_ctrl(sampass), /* w */
2208 pdb_get_logon_divs(sampass), /* w */
2209 pdb_get_hours_len(sampass), /* d */
2210 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2211 pdb_get_bad_password_count(sampass), /* w */
2212 pdb_get_logon_count(sampass), /* w */
2213 pdb_get_unknown_6(sampass)); /* d */
2214
2215 /* check to make sure we got it correct */
2216 if (buflen != len) {
2217 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2218 (unsigned long)buflen, (unsigned long)len));
2219 /* error */
2220 SAFE_FREE (*buf);
2221 return (-1);
2222 }
2223
2224 return (buflen);
2225 }
2226
2227 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2228 {
2229 BOOL result;
2230 uint8 *buf;
2231 int len;
2232
2233 if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2234 return False;
2235
2236 len = init_buffer_from_sam_v2(&buf, src, False);
2237
2238 if (len == -1)
2239 return False;
2240
2241 result = init_sam_from_buffer_v2(*dst, buf, len);
2242 (*dst)->methods = src->methods;
2243
2244 free(buf);
2245
2246 return result;
2247 }
2248
2249 /**********************************************************************
2250 **********************************************************************/
2251
2252 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2253 {
2254 uid_t u_low, u_high;
2255 gid_t g_low, g_high;
2256
2257 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2258 return False;
2259 }
2260
2261 *low = (u_low < g_low) ? u_low : g_low;
2262 *high = (u_high < g_high) ? u_high : g_high;
2263
2264 return True;
2265 }
2266
2267 /******************************************************************
2268 Get the the non-algorithmic RID range if idmap range are defined
2269 ******************************************************************/
2270
2271 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2272 {
2273 uint32 id_low, id_high;
2274
2275 if (!lp_enable_rid_algorithm()) {
2276 *low = BASE_RID;
2277 *high = (uint32)-1;
2278 }
2279
2280 if (!get_free_ugid_range(&id_low, &id_high)) {
2281 return False;
2282 }
2283
2284 *low = algorithmic_pdb_uid_to_user_rid(id_low);
2285 if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2286 *high = (uint32)-1;
2287 } else {
2288 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2289 }
2290
2291 return True;
2292 }
2293
2294 /*********************************************************************
2295 Update the bad password count checking the AP_RESET_COUNT_TIME
2296 *********************************************************************/
2297
2298 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2299 {
2300 time_t LastBadPassword;
2301 uint16 BadPasswordCount;
2302 uint32 resettime;
2303
2304 if (!sampass) return False;
2305
2306 BadPasswordCount = pdb_get_bad_password_count(sampass);
2307 if (!BadPasswordCount) {
2308 DEBUG(9, ("No bad password attempts.\n"));
2309 return True;
2310 }
2311
2312 if (!account_policy_get(AP_RESET_COUNT_TIME, &resettime)) {
2313 DEBUG(0, ("pdb_update_bad_password_count: account_policy_get failed.\n"));
2314 return False;
2315 }
2316
2317 /* First, check if there is a reset time to compare */
2318 if ((resettime == (uint32) -1) || (resettime == 0)) {
2319 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2320 return True;
2321 }
2322
2323 LastBadPassword = pdb_get_bad_password_time(sampass);
2324 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2325 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2326 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2327 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2328 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2329 if (updated) {
2330 *updated = True;
2331 }
2332 }
2333
2334 return True;
2335 }
2336
2337 /*********************************************************************
2338 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2339 *********************************************************************/
2340
2341 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2342 {
2343 uint32 duration;
2344 time_t LastBadPassword;
2345
2346 if (!sampass) return False;
2347
2348 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2349 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2350 pdb_get_username(sampass)));
2351 return True;
2352 }
2353
2354 if (!account_policy_get(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2355 DEBUG(0, ("pdb_update_autolock_flag: account_policy_get failed.\n"));
2356 return False;
2357 }
2358
2359 /* First, check if there is a duration to compare */
2360 if ((duration == (uint32) -1) || (duration == 0)) {
2361 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2362 return True;
2363 }
2364
2365 LastBadPassword = pdb_get_bad_password_time(sampass);
2366 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2367 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2368
2369 if (LastBadPassword == (time_t)0) {
2370 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2371 bad password time. Leaving locked out.\n",
2372 pdb_get_username(sampass) ));
2373 return True;
2374 }
2375
2376 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2377 pdb_set_acct_ctrl(sampass,
2378 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2379 PDB_CHANGED);
2380 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2381 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2382 if (updated) {
2383 *updated = True;
2384 }
2385 }
2386
2387 return True;
2388 }
2389
2390 /*********************************************************************
2391 Increment the bad_password_count
2392 *********************************************************************/
2393
2394 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2395 {
2396 uint32 account_policy_lockout;
2397 BOOL autolock_updated = False, badpw_updated = False;
2398
2399 if (!sampass)
2400 return False;
2401
2402 /* Retrieve the account lockout policy */
2403 if (!account_policy_get(AP_BAD_ATTEMPT_LOCKOUT,
2404 &account_policy_lockout)) {
2405 DEBUG(0, ("pdb_increment_bad_password_count: account_policy_get failed.\n"));
2406 return False;
2407 }
2408
2409 /* If there is no policy, we don't need to continue checking */
2410 if (!account_policy_lockout) {
2411 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2412 return True;
2413 }
2414
2415 /* Check if the autolock needs to be cleared */
2416 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2417 return False;
2418
2419 /* Check if the badpw count needs to be reset */
2420 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2421 return False;
2422
2423 /*
2424 Ok, now we can assume that any resetting that needs to be
2425 done has been done, and just get on with incrementing
2426 and autolocking if necessary
2427 */
2428
2429 pdb_set_bad_password_count(sampass,
2430 pdb_get_bad_password_count(sampass)+1,
2431 PDB_CHANGED);
2432 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2433
2434
2435 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2436 return True;
2437
2438 if (!pdb_set_acct_ctrl(sampass,
2439 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2440 PDB_CHANGED)) {
2441 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2442 return False;
2443 }
2444
2445 return True;
2446 }
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