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r5021: Starting to look at final code for 3.0.11rc1.
[Samba.git] / source / passdb / passdb.c
blobc7cd59a4c5f66cdf9d9ad7d6834d2fea2bd01beb
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 (algorithmic_pdb_rid_is_user(rid)) {
798 uid_t uid;
799 struct passwd *pw = NULL;
800
801 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
802
803 uid = algorithmic_pdb_user_rid_to_uid(rid);
804 pw = sys_getpwuid( uid );
805
806 DEBUG(5,("local_lookup_sid: looking up uid %u %s\n", (unsigned int)uid,
807 pw ? "succeeded" : "failed" ));
808
809 if ( !pw )
810 fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
811 else
812 fstrcpy( name, pw->pw_name );
813
814 DEBUG(5,("local_lookup_sid: found user %s for rid %u\n", name,
815 (unsigned int)rid ));
816
817 *psid_name_use = SID_NAME_USER;
818
819 return ( pw != NULL );
820 } else {
821 gid_t gid;
822 struct group *gr;
823
824 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
825
826 gid = pdb_group_rid_to_gid(rid);
827 gr = getgrgid(gid);
828
829 *psid_name_use = SID_NAME_ALIAS;
830
831 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
832 gr ? "succeeded" : "failed" ));
833
834 if( !gr )
835 fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
836 else
837 fstrcpy( name, gr->gr_name);
838
839 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
840 (unsigned int)rid ));
841
842 /* assume algorithmic groups are domain global groups */
843
844 *psid_name_use = SID_NAME_DOM_GRP;
845
846 return ( gr != NULL );
847 }
848 }
849
850 /*******************************************************************
851 Convert a name into a SID. Used in the lookup name rpc.
852 ********************************************************************/
853
854 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
855 {
856 DOM_SID local_sid;
857 DOM_SID sid;
858 fstring user;
859 SAM_ACCOUNT *sam_account = NULL;
860 struct group *grp;
861 GROUP_MAP map;
862
863 *psid_name_use = SID_NAME_UNKNOWN;
864
865 /*
866 * user may be quoted a const string, and map_username and
867 * friends can modify it. Make a modifiable copy. JRA.
868 */
869
870 fstrcpy(user, c_user);
871
872 sid_copy(&local_sid, get_global_sam_sid());
873
874 if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
875 fstring sid_str;
876 sid_copy( psid, &sid);
877 sid_to_string(sid_str, &sid);
878 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
879 (unsigned int)*psid_name_use ));
880 return True;
881 }
882
883 (void)map_username(user);
884
885 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
886 return False;
887 }
888
889 /* BEGIN ROOT BLOCK */
890
891 become_root();
892 if (pdb_getsampwnam(sam_account, user)) {
893 unbecome_root();
894 sid_copy(psid, pdb_get_user_sid(sam_account));
895 *psid_name_use = SID_NAME_USER;
896
897 pdb_free_sam(&sam_account);
898 return True;
899 }
900
901 pdb_free_sam(&sam_account);
902
903 /*
904 * Maybe it was a group ?
905 */
906
907 /* check if it's a mapped group */
908 if (pdb_getgrnam(&map, user)) {
909 /* yes it's a mapped group */
910 sid_copy(&local_sid, &map.sid);
911 *psid_name_use = map.sid_name_use;
912 } else {
913 /* it's not a mapped group */
914 grp = getgrnam(user);
915 if(!grp) {
916 unbecome_root(); /* ---> exit form block */
917 return False;
918 }
919
920 /*
921 *check if it's mapped, if it is reply it doesn't exist
922 *
923 * that's to prevent this case:
924 *
925 * unix group ug is mapped to nt group ng
926 * someone does a lookup on ug
927 * we must not reply as it doesn't "exist" anymore
928 * for NT. For NT only ng exists.
929 * JFM, 30/11/2001
930 */
931
932 if (pdb_getgrgid(&map, grp->gr_gid)){
933 unbecome_root(); /* ---> exit form block */
934 return False;
935 }
936
937 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
938 *psid_name_use = SID_NAME_ALIAS;
939 }
940 unbecome_root();
941 /* END ROOT BLOCK */
942
943 sid_copy( psid, &local_sid);
944
945 return True;
946 }
947
948 /*************************************************************
949 Change a password entry in the local smbpasswd file.
950 *************************************************************/
951
952 BOOL local_password_change(const char *user_name, int local_flags,
953 const char *new_passwd,
954 char *err_str, size_t err_str_len,
955 char *msg_str, size_t msg_str_len)
956 {
957 SAM_ACCOUNT *sam_pass=NULL;
958 uint16 other_acb;
959
960 *err_str = '\0';
961 *msg_str = '\0';
962
963 /* Get the smb passwd entry for this user */
964 pdb_init_sam(&sam_pass);
965
966 become_root();
967 if(!pdb_getsampwnam(sam_pass, user_name)) {
968 unbecome_root();
969 pdb_free_sam(&sam_pass);
970
971 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
972 /* Might not exist in /etc/passwd. Use rid algorithm here */
973 if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
974 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);
975 return False;
976 }
977 } else {
978 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
979 return False;
980 }
981 } else {
982 unbecome_root();
983 /* the entry already existed */
984 local_flags &= ~LOCAL_ADD_USER;
985 }
986
987 /* the 'other' acb bits not being changed here */
988 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
989 if (local_flags & LOCAL_TRUST_ACCOUNT) {
990 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
991 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
992 pdb_free_sam(&sam_pass);
993 return False;
994 }
995 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
996 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
997 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
998 pdb_free_sam(&sam_pass);
999 return False;
1000 }
1001 } else {
1002 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1003 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1004 pdb_free_sam(&sam_pass);
1005 return False;
1006 }
1007 }
1008
1009 /*
1010 * We are root - just write the new password
1011 * and the valid last change time.
1012 */
1013
1014 if (local_flags & LOCAL_DISABLE_USER) {
1015 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1016 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1017 pdb_free_sam(&sam_pass);
1018 return False;
1019 }
1020 } else if (local_flags & LOCAL_ENABLE_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 unset 'disabled' flag for user %s.\n", user_name);
1023 pdb_free_sam(&sam_pass);
1024 return False;
1025 }
1026 }
1027
1028 if (local_flags & LOCAL_SET_NO_PASSWORD) {
1029 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1030 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1031 pdb_free_sam(&sam_pass);
1032 return False;
1033 }
1034 } else if (local_flags & LOCAL_SET_PASSWORD) {
1035 /*
1036 * If we're dealing with setting a completely empty user account
1037 * ie. One with a password of 'XXXX', but not set disabled (like
1038 * an account created from scratch) then if the old password was
1039 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1040 * We remove that as we're giving this user their first password
1041 * and the decision hasn't really been made to disable them (ie.
1042 * don't create them disabled). JRA.
1043 */
1044 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1045 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1046 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1047 pdb_free_sam(&sam_pass);
1048 return False;
1049 }
1050 }
1051 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1052 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1053 pdb_free_sam(&sam_pass);
1054 return False;
1055 }
1056
1057 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1058 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1059 pdb_free_sam(&sam_pass);
1060 return False;
1061 }
1062 }
1063
1064 if (local_flags & LOCAL_ADD_USER) {
1065 if (pdb_add_sam_account(sam_pass)) {
1066 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1067 pdb_free_sam(&sam_pass);
1068 return True;
1069 } else {
1070 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1071 pdb_free_sam(&sam_pass);
1072 return False;
1073 }
1074 } else if (local_flags & LOCAL_DELETE_USER) {
1075 if (!pdb_delete_sam_account(sam_pass)) {
1076 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1077 pdb_free_sam(&sam_pass);
1078 return False;
1079 }
1080 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1081 } else {
1082 if(!pdb_update_sam_account(sam_pass)) {
1083 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1084 pdb_free_sam(&sam_pass);
1085 return False;
1086 }
1087 if(local_flags & LOCAL_DISABLE_USER)
1088 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1089 else if (local_flags & LOCAL_ENABLE_USER)
1090 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1091 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1092 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1093 }
1094
1095 pdb_free_sam(&sam_pass);
1096 return True;
1097 }
1098
1099 /****************************************************************************
1100 Convert a uid to SID - algorithmic.
1101 ****************************************************************************/
1102
1103 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1104 {
1105 if ( !lp_enable_rid_algorithm() )
1106 return NULL;
1107
1108 DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1109 sid_copy( psid, get_global_sam_sid() );
1110 sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
1111 DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
1112 (unsigned int)uid, sid_string_static(psid) ));
1113
1114 return psid;
1115 }
1116
1117 /****************************************************************************
1118 Convert a uid to SID - locally.
1119 ****************************************************************************/
1120
1121 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1122 {
1123 SAM_ACCOUNT *sampw = NULL;
1124 struct passwd *unix_pw;
1125 BOOL ret;
1126
1127 unix_pw = sys_getpwuid( uid );
1128
1129 if ( !unix_pw ) {
1130 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1131 return algorithmic_uid_to_sid( psid, uid);
1132 }
1133
1134 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1135 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1136 return NULL;
1137 }
1138
1139 become_root();
1140 ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1141 unbecome_root();
1142
1143 if ( ret )
1144 sid_copy( psid, pdb_get_user_sid(sampw) );
1145 else {
1146 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1147 unix_pw->pw_name, (unsigned long)uid));
1148
1149 return algorithmic_uid_to_sid( psid, uid);
1150 }
1151
1152 DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
1153 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1154
1155 return psid;
1156 }
1157
1158 /****************************************************************************
1159 Convert a SID to uid - locally.
1160 ****************************************************************************/
1161
1162 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1163 {
1164 SAM_ACCOUNT *sampw = NULL;
1165 struct passwd *unix_pw;
1166 const char *user_name;
1167
1168 *name_type = SID_NAME_UNKNOWN;
1169
1170 /*
1171 * We can only convert to a uid if this is our local
1172 * Domain SID (ie. we are the controling authority).
1173 */
1174 if (!sid_check_is_in_our_domain(psid) ) {
1175 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1176 return False;
1177 }
1178
1179 /* lookup the user account */
1180
1181 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1182 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1183 return False;
1184 }
1185
1186 become_root();
1187 if ( !pdb_getsampwsid(sampw, psid) ) {
1188 unbecome_root();
1189 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1190 sid_string_static(psid)));
1191 return False;
1192 }
1193 unbecome_root();
1194
1195 user_name = pdb_get_username(sampw);
1196
1197 unix_pw = sys_getpwnam( user_name );
1198
1199 if ( !unix_pw ) {
1200 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1201 user_name));
1202 pdb_free_sam( &sampw );
1203 return False;
1204 }
1205
1206 *puid = unix_pw->pw_uid;
1207
1208 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1209 (unsigned int)*puid, user_name ));
1210
1211 *name_type = SID_NAME_USER;
1212
1213 return True;
1214 }
1215
1216 /****************************************************************************
1217 Convert a gid to SID - algorithmic.
1218 ****************************************************************************/
1219
1220 DOM_SID *algorithmic_gid_to_sid(DOM_SID *psid, uid_t gid)
1221 {
1222 if ( !lp_enable_rid_algorithm() )
1223 return NULL;
1224
1225 DEBUG(8,("algorithmic_gid_to_sid: falling back to RID algorithm\n"));
1226 sid_copy( psid, get_global_sam_sid() );
1227 sid_append_rid( psid, pdb_gid_to_group_rid(gid) );
1228 DEBUG(10,("algorithmic_gid_to_sid: gid (%d) -> SID %s.\n",
1229 (unsigned int)gid, sid_string_static(psid) ));
1230
1231 return psid;
1232 }
1233
1234 /****************************************************************************
1235 Convert a gid to SID - locally.
1236 ****************************************************************************/
1237
1238 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1239 {
1240 GROUP_MAP group;
1241 BOOL ret;
1242
1243 /* we don't need to disable winbindd since the gid is stored in
1244 the GROUP_MAP object */
1245
1246 /* done as root since ldap backend requires root to open a connection */
1247
1248 become_root();
1249 ret = pdb_getgrgid( &group, gid );
1250 unbecome_root();
1251
1252 if ( !ret ) {
1253
1254 /* algorithmic to rid mapping if enabled */
1255
1256 if ( lp_enable_rid_algorithm() ) {
1257
1258 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1259 (unsigned int)gid, sid_string_static(psid)));
1260
1261 return algorithmic_gid_to_sid(psid, gid);
1262 }
1263 else
1264 return NULL;
1265 }
1266
1267 sid_copy( psid, &group.sid );
1268
1269 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1270 (unsigned int)gid, sid_string_static(psid)));
1271
1272 return psid;
1273 }
1274
1275 /****************************************************************************
1276 Convert a SID to gid - locally.
1277 ****************************************************************************/
1278
1279 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1280 {
1281 uint32 rid;
1282 GROUP_MAP group;
1283 BOOL ret;
1284
1285 *name_type = SID_NAME_UNKNOWN;
1286
1287 /* This call can enumerate group mappings for foreign sids as well.
1288 So don't check for a match against our domain SID */
1289
1290 /* we don't need to disable winbindd since the gid is stored in
1291 the GROUP_MAP object */
1292
1293 become_root();
1294 ret = pdb_getgrsid(&group, *psid);
1295 unbecome_root();
1296
1297 if ( !ret ) {
1298
1299 /* Fallback to algorithmic rid mapping if enabled */
1300
1301 if ( lp_enable_rid_algorithm() ) {
1302
1303 if (!sid_check_is_in_our_domain(psid) ) {
1304 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1305 return False;
1306 }
1307
1308 if (!sid_peek_rid(psid, &rid)) {
1309 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1310 return False;
1311 }
1312
1313 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1314
1315 if (algorithmic_pdb_rid_is_user(rid)) {
1316 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1317 return False;
1318 } else {
1319 *pgid = pdb_group_rid_to_gid(rid);
1320 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1321 return True;
1322 }
1323 }
1324
1325 return False;
1326 }
1327
1328 *pgid = group.gid;
1329 *name_type = group.sid_name_use;
1330
1331 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1332 (unsigned int)*pgid));
1333
1334 return True;
1335 }
1336
1337 /**********************************************************************
1338 Marshall/unmarshall SAM_ACCOUNT structs.
1339 *********************************************************************/
1340
1341 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1342 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1343 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1344
1345 /**********************************************************************
1346 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1347 *********************************************************************/
1348
1349 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1350 {
1351 return(init_sam_from_buffer_v2(sampass, buf, buflen));
1352 }
1353
1354 /**********************************************************************
1355 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1356 *********************************************************************/
1357
1358 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1359 {
1360 return(init_buffer_from_sam_v2(buf, sampass, size_only));
1361 }
1362
1363
1364 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1365 {
1366
1367 /* times are stored as 32bit integer
1368 take care on system with 64bit wide time_t
1369 --SSS */
1370 uint32 logon_time,
1371 logoff_time,
1372 kickoff_time,
1373 pass_last_set_time,
1374 pass_can_change_time,
1375 pass_must_change_time;
1376 char *username;
1377 char *domain;
1378 char *nt_username;
1379 char *dir_drive;
1380 char *unknown_str;
1381 char *munged_dial;
1382 char *fullname;
1383 char *homedir;
1384 char *logon_script;
1385 char *profile_path;
1386 char *acct_desc;
1387 char *workstations;
1388 uint32 username_len, domain_len, nt_username_len,
1389 dir_drive_len, unknown_str_len, munged_dial_len,
1390 fullname_len, homedir_len, logon_script_len,
1391 profile_path_len, acct_desc_len, workstations_len;
1392
1393 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1394 uint16 acct_ctrl, logon_divs;
1395 uint16 bad_password_count, logon_count;
1396 uint8 *hours;
1397 uint8 *lm_pw_ptr, *nt_pw_ptr;
1398 uint32 len = 0;
1399 uint32 lm_pw_len, nt_pw_len, hourslen;
1400 BOOL ret = True;
1401
1402 if(sampass == NULL || buf == NULL) {
1403 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1404 return False;
1405 }
1406
1407 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1408
1409 /* unpack the buffer into variables */
1410 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1411 &logon_time, /* d */
1412 &logoff_time, /* d */
1413 &kickoff_time, /* d */
1414 &pass_last_set_time, /* d */
1415 &pass_can_change_time, /* d */
1416 &pass_must_change_time, /* d */
1417 &username_len, &username, /* B */
1418 &domain_len, &domain, /* B */
1419 &nt_username_len, &nt_username, /* B */
1420 &fullname_len, &fullname, /* B */
1421 &homedir_len, &homedir, /* B */
1422 &dir_drive_len, &dir_drive, /* B */
1423 &logon_script_len, &logon_script, /* B */
1424 &profile_path_len, &profile_path, /* B */
1425 &acct_desc_len, &acct_desc, /* B */
1426 &workstations_len, &workstations, /* B */
1427 &unknown_str_len, &unknown_str, /* B */
1428 &munged_dial_len, &munged_dial, /* B */
1429 &user_rid, /* d */
1430 &group_rid, /* d */
1431 &lm_pw_len, &lm_pw_ptr, /* B */
1432 &nt_pw_len, &nt_pw_ptr, /* B */
1433 &acct_ctrl, /* w */
1434 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1435 &logon_divs, /* w */
1436 &hours_len, /* d */
1437 &hourslen, &hours, /* B */
1438 &bad_password_count, /* w */
1439 &logon_count, /* w */
1440 &unknown_6); /* d */
1441
1442 if (len == (uint32) -1) {
1443 ret = False;
1444 goto done;
1445 }
1446
1447 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1448 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1449 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1450 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1451 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1452 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1453
1454 pdb_set_username(sampass, username, PDB_SET);
1455 pdb_set_domain(sampass, domain, PDB_SET);
1456 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1457 pdb_set_fullname(sampass, fullname, PDB_SET);
1458
1459 if (homedir) {
1460 pdb_set_homedir(sampass, homedir, PDB_SET);
1461 }
1462 else {
1463 pdb_set_homedir(sampass,
1464 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1465 PDB_DEFAULT);
1466 }
1467
1468 if (dir_drive)
1469 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1470 else {
1471 pdb_set_dir_drive(sampass,
1472 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1473 PDB_DEFAULT);
1474 }
1475
1476 if (logon_script)
1477 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1478 else {
1479 pdb_set_logon_script(sampass,
1480 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1481 PDB_DEFAULT);
1482 }
1483
1484 if (profile_path) {
1485 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1486 } else {
1487 pdb_set_profile_path(sampass,
1488 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1489 PDB_DEFAULT);
1490 }
1491
1492 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1493 pdb_set_workstations(sampass, workstations, PDB_SET);
1494 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1495
1496 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1497 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1498 ret = False;
1499 goto done;
1500 }
1501 }
1502
1503 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1504 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1505 ret = False;
1506 goto done;
1507 }
1508 }
1509
1510 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1511 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1512 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1513 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1514 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1515 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1516 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1517 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1518 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1519 pdb_set_hours(sampass, hours, PDB_SET);
1520
1521 done:
1522
1523 SAFE_FREE(username);
1524 SAFE_FREE(domain);
1525 SAFE_FREE(nt_username);
1526 SAFE_FREE(fullname);
1527 SAFE_FREE(homedir);
1528 SAFE_FREE(dir_drive);
1529 SAFE_FREE(logon_script);
1530 SAFE_FREE(profile_path);
1531 SAFE_FREE(acct_desc);
1532 SAFE_FREE(workstations);
1533 SAFE_FREE(munged_dial);
1534 SAFE_FREE(unknown_str);
1535 SAFE_FREE(lm_pw_ptr);
1536 SAFE_FREE(nt_pw_ptr);
1537 SAFE_FREE(hours);
1538
1539 return ret;
1540 }
1541
1542 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1543 {
1544
1545 /* times are stored as 32bit integer
1546 take care on system with 64bit wide time_t
1547 --SSS */
1548 uint32 logon_time,
1549 logoff_time,
1550 kickoff_time,
1551 bad_password_time,
1552 pass_last_set_time,
1553 pass_can_change_time,
1554 pass_must_change_time;
1555 char *username;
1556 char *domain;
1557 char *nt_username;
1558 char *dir_drive;
1559 char *unknown_str;
1560 char *munged_dial;
1561 char *fullname;
1562 char *homedir;
1563 char *logon_script;
1564 char *profile_path;
1565 char *acct_desc;
1566 char *workstations;
1567 uint32 username_len, domain_len, nt_username_len,
1568 dir_drive_len, unknown_str_len, munged_dial_len,
1569 fullname_len, homedir_len, logon_script_len,
1570 profile_path_len, acct_desc_len, workstations_len;
1571
1572 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1573 uint16 acct_ctrl, logon_divs;
1574 uint16 bad_password_count, logon_count;
1575 uint8 *hours;
1576 uint8 *lm_pw_ptr, *nt_pw_ptr;
1577 uint32 len = 0;
1578 uint32 lm_pw_len, nt_pw_len, hourslen;
1579 BOOL ret = True;
1580
1581 if(sampass == NULL || buf == NULL) {
1582 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1583 return False;
1584 }
1585
1586 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1587
1588 /* unpack the buffer into variables */
1589 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1590 &logon_time, /* d */
1591 &logoff_time, /* d */
1592 &kickoff_time, /* d */
1593 /* Change from V0 is addition of bad_password_time field. */
1594 &bad_password_time, /* d */
1595 &pass_last_set_time, /* d */
1596 &pass_can_change_time, /* d */
1597 &pass_must_change_time, /* d */
1598 &username_len, &username, /* B */
1599 &domain_len, &domain, /* B */
1600 &nt_username_len, &nt_username, /* B */
1601 &fullname_len, &fullname, /* B */
1602 &homedir_len, &homedir, /* B */
1603 &dir_drive_len, &dir_drive, /* B */
1604 &logon_script_len, &logon_script, /* B */
1605 &profile_path_len, &profile_path, /* B */
1606 &acct_desc_len, &acct_desc, /* B */
1607 &workstations_len, &workstations, /* B */
1608 &unknown_str_len, &unknown_str, /* B */
1609 &munged_dial_len, &munged_dial, /* B */
1610 &user_rid, /* d */
1611 &group_rid, /* d */
1612 &lm_pw_len, &lm_pw_ptr, /* B */
1613 &nt_pw_len, &nt_pw_ptr, /* B */
1614 &acct_ctrl, /* w */
1615 &remove_me, /* d */
1616 &logon_divs, /* w */
1617 &hours_len, /* d */
1618 &hourslen, &hours, /* B */
1619 &bad_password_count, /* w */
1620 &logon_count, /* w */
1621 &unknown_6); /* d */
1622
1623 if (len == (uint32) -1) {
1624 ret = False;
1625 goto done;
1626 }
1627
1628 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1629 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1630 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1631
1632 /* Change from V0 is addition of bad_password_time field. */
1633 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1634 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1635 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1636 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1637
1638 pdb_set_username(sampass, username, PDB_SET);
1639 pdb_set_domain(sampass, domain, PDB_SET);
1640 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1641 pdb_set_fullname(sampass, fullname, PDB_SET);
1642
1643 if (homedir) {
1644 pdb_set_homedir(sampass, homedir, PDB_SET);
1645 }
1646 else {
1647 pdb_set_homedir(sampass,
1648 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1649 PDB_DEFAULT);
1650 }
1651
1652 if (dir_drive)
1653 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1654 else {
1655 pdb_set_dir_drive(sampass,
1656 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1657 PDB_DEFAULT);
1658 }
1659
1660 if (logon_script)
1661 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1662 else {
1663 pdb_set_logon_script(sampass,
1664 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1665 PDB_DEFAULT);
1666 }
1667
1668 if (profile_path) {
1669 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1670 } else {
1671 pdb_set_profile_path(sampass,
1672 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1673 PDB_DEFAULT);
1674 }
1675
1676 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1677 pdb_set_workstations(sampass, workstations, PDB_SET);
1678 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1679
1680 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1681 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1682 ret = False;
1683 goto done;
1684 }
1685 }
1686
1687 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1688 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1689 ret = False;
1690 goto done;
1691 }
1692 }
1693
1694 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1695
1696 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1697 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1698 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1699 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1700 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1701 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1702 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1703 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1704 pdb_set_hours(sampass, hours, PDB_SET);
1705
1706 done:
1707
1708 SAFE_FREE(username);
1709 SAFE_FREE(domain);
1710 SAFE_FREE(nt_username);
1711 SAFE_FREE(fullname);
1712 SAFE_FREE(homedir);
1713 SAFE_FREE(dir_drive);
1714 SAFE_FREE(logon_script);
1715 SAFE_FREE(profile_path);
1716 SAFE_FREE(acct_desc);
1717 SAFE_FREE(workstations);
1718 SAFE_FREE(munged_dial);
1719 SAFE_FREE(unknown_str);
1720 SAFE_FREE(lm_pw_ptr);
1721 SAFE_FREE(nt_pw_ptr);
1722 SAFE_FREE(hours);
1723
1724 return ret;
1725 }
1726
1727
1728 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1729 {
1730
1731 /* times are stored as 32bit integer
1732 take care on system with 64bit wide time_t
1733 --SSS */
1734 uint32 logon_time,
1735 logoff_time,
1736 kickoff_time,
1737 bad_password_time,
1738 pass_last_set_time,
1739 pass_can_change_time,
1740 pass_must_change_time;
1741 char *username;
1742 char *domain;
1743 char *nt_username;
1744 char *dir_drive;
1745 char *unknown_str;
1746 char *munged_dial;
1747 char *fullname;
1748 char *homedir;
1749 char *logon_script;
1750 char *profile_path;
1751 char *acct_desc;
1752 char *workstations;
1753 uint32 username_len, domain_len, nt_username_len,
1754 dir_drive_len, unknown_str_len, munged_dial_len,
1755 fullname_len, homedir_len, logon_script_len,
1756 profile_path_len, acct_desc_len, workstations_len;
1757
1758 uint32 user_rid, group_rid, hours_len, unknown_6;
1759 uint16 acct_ctrl, logon_divs;
1760 uint16 bad_password_count, logon_count;
1761 uint8 *hours;
1762 uint8 *lm_pw_ptr, *nt_pw_ptr, *nt_pw_hist_ptr;
1763 uint32 len = 0;
1764 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1765 uint32 pwHistLen = 0;
1766 BOOL ret = True;
1767 fstring tmpstring;
1768
1769 if(sampass == NULL || buf == NULL) {
1770 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1771 return False;
1772 }
1773
1774 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1775
1776 /* unpack the buffer into variables */
1777 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1778 &logon_time, /* d */
1779 &logoff_time, /* d */
1780 &kickoff_time, /* d */
1781 &bad_password_time, /* d */
1782 &pass_last_set_time, /* d */
1783 &pass_can_change_time, /* d */
1784 &pass_must_change_time, /* d */
1785 &username_len, &username, /* B */
1786 &domain_len, &domain, /* B */
1787 &nt_username_len, &nt_username, /* B */
1788 &fullname_len, &fullname, /* B */
1789 &homedir_len, &homedir, /* B */
1790 &dir_drive_len, &dir_drive, /* B */
1791 &logon_script_len, &logon_script, /* B */
1792 &profile_path_len, &profile_path, /* B */
1793 &acct_desc_len, &acct_desc, /* B */
1794 &workstations_len, &workstations, /* B */
1795 &unknown_str_len, &unknown_str, /* B */
1796 &munged_dial_len, &munged_dial, /* B */
1797 &user_rid, /* d */
1798 &group_rid, /* d */
1799 &lm_pw_len, &lm_pw_ptr, /* B */
1800 &nt_pw_len, &nt_pw_ptr, /* B */
1801 /* Change from V1 is addition of password history field. */
1802 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1803 &acct_ctrl, /* w */
1804 /* Also "remove_me" field was removed. */
1805 &logon_divs, /* w */
1806 &hours_len, /* d */
1807 &hourslen, &hours, /* B */
1808 &bad_password_count, /* w */
1809 &logon_count, /* w */
1810 &unknown_6); /* d */
1811
1812 if (len == (uint32) -1) {
1813 ret = False;
1814 goto done;
1815 }
1816
1817 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1818 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1819 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1820 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1821 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1822 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1823 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1824
1825 pdb_set_username(sampass, username, PDB_SET);
1826 pdb_set_domain(sampass, domain, PDB_SET);
1827 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1828 pdb_set_fullname(sampass, fullname, PDB_SET);
1829
1830 if (homedir) {
1831 fstrcpy( tmpstring, homedir );
1832 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1833 pdb_set_homedir(sampass, tmpstring, PDB_SET);
1834 }
1835 else {
1836 pdb_set_homedir(sampass,
1837 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1838 PDB_DEFAULT);
1839 }
1840
1841 if (dir_drive)
1842 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1843 else
1844 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1845
1846 if (logon_script) {
1847 fstrcpy( tmpstring, logon_script );
1848 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1849 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
1850 }
1851 else {
1852 pdb_set_logon_script(sampass,
1853 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1854 PDB_DEFAULT);
1855 }
1856
1857 if (profile_path) {
1858 fstrcpy( tmpstring, profile_path );
1859 standard_sub_basic( username, tmpstring, sizeof(tmpstring) );
1860 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
1861 }
1862 else {
1863 pdb_set_profile_path(sampass,
1864 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1865 PDB_DEFAULT);
1866 }
1867
1868 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1869 pdb_set_workstations(sampass, workstations, PDB_SET);
1870 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1871
1872 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1873 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1874 ret = False;
1875 goto done;
1876 }
1877 }
1878
1879 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1880 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1881 ret = False;
1882 goto done;
1883 }
1884 }
1885
1886 /* Change from V1 is addition of password history field. */
1887 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
1888 if (pwHistLen) {
1889 char *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1890 if (!pw_hist) {
1891 ret = False;
1892 goto done;
1893 }
1894 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1895 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1896 int i;
1897 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1898 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1899 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1900 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1901 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1902 PW_HISTORY_ENTRY_LEN);
1903 }
1904 }
1905 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1906 SAFE_FREE(pw_hist);
1907 ret = False;
1908 goto done;
1909 }
1910 SAFE_FREE(pw_hist);
1911 } else {
1912 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1913 }
1914
1915 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1916 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1917 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1918 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1919 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1920 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1921 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1922 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1923 pdb_set_hours(sampass, hours, PDB_SET);
1924
1925 done:
1926
1927 SAFE_FREE(username);
1928 SAFE_FREE(domain);
1929 SAFE_FREE(nt_username);
1930 SAFE_FREE(fullname);
1931 SAFE_FREE(homedir);
1932 SAFE_FREE(dir_drive);
1933 SAFE_FREE(logon_script);
1934 SAFE_FREE(profile_path);
1935 SAFE_FREE(acct_desc);
1936 SAFE_FREE(workstations);
1937 SAFE_FREE(munged_dial);
1938 SAFE_FREE(unknown_str);
1939 SAFE_FREE(lm_pw_ptr);
1940 SAFE_FREE(nt_pw_ptr);
1941 SAFE_FREE(nt_pw_hist_ptr);
1942 SAFE_FREE(hours);
1943
1944 return ret;
1945 }
1946
1947 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1948 {
1949 size_t len, buflen;
1950
1951 /* times are stored as 32bit integer
1952 take care on system with 64bit wide time_t
1953 --SSS */
1954 uint32 logon_time,
1955 logoff_time,
1956 kickoff_time,
1957 bad_password_time,
1958 pass_last_set_time,
1959 pass_can_change_time,
1960 pass_must_change_time;
1961
1962 uint32 user_rid, group_rid;
1963
1964 const char *username;
1965 const char *domain;
1966 const char *nt_username;
1967 const char *dir_drive;
1968 const char *unknown_str;
1969 const char *munged_dial;
1970 const char *fullname;
1971 const char *homedir;
1972 const char *logon_script;
1973 const char *profile_path;
1974 const char *acct_desc;
1975 const char *workstations;
1976 uint32 username_len, domain_len, nt_username_len,
1977 dir_drive_len, unknown_str_len, munged_dial_len,
1978 fullname_len, homedir_len, logon_script_len,
1979 profile_path_len, acct_desc_len, workstations_len;
1980
1981 const uint8 *lm_pw;
1982 const uint8 *nt_pw;
1983 const uint8 *nt_pw_hist;
1984 uint32 lm_pw_len = 16;
1985 uint32 nt_pw_len = 16;
1986 uint32 nt_pw_hist_len;
1987 uint32 pwHistLen = 0;
1988
1989 /* do we have a valid SAM_ACCOUNT pointer? */
1990 if (sampass == NULL) {
1991 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1992 return -1;
1993 }
1994
1995 *buf = NULL;
1996 buflen = 0;
1997
1998 logon_time = (uint32)pdb_get_logon_time(sampass);
1999 logoff_time = (uint32)pdb_get_logoff_time(sampass);
2000 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
2001 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
2002 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
2003 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
2004 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
2005
2006 user_rid = pdb_get_user_rid(sampass);
2007 group_rid = pdb_get_group_rid(sampass);
2008
2009 username = pdb_get_username(sampass);
2010 if (username) {
2011 username_len = strlen(username) +1;
2012 } else {
2013 username_len = 0;
2014 }
2015
2016 domain = pdb_get_domain(sampass);
2017 if (domain) {
2018 domain_len = strlen(domain) +1;
2019 } else {
2020 domain_len = 0;
2021 }
2022
2023 nt_username = pdb_get_nt_username(sampass);
2024 if (nt_username) {
2025 nt_username_len = strlen(nt_username) +1;
2026 } else {
2027 nt_username_len = 0;
2028 }
2029
2030 fullname = pdb_get_fullname(sampass);
2031 if (fullname) {
2032 fullname_len = strlen(fullname) +1;
2033 } else {
2034 fullname_len = 0;
2035 }
2036
2037 /*
2038 * Only updates fields which have been set (not defaults from smb.conf)
2039 */
2040
2041 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2042 dir_drive = pdb_get_dir_drive(sampass);
2043 } else {
2044 dir_drive = NULL;
2045 }
2046 if (dir_drive) {
2047 dir_drive_len = strlen(dir_drive) +1;
2048 } else {
2049 dir_drive_len = 0;
2050 }
2051
2052 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2053 homedir = pdb_get_homedir(sampass);
2054 } else {
2055 homedir = NULL;
2056 }
2057 if (homedir) {
2058 homedir_len = strlen(homedir) +1;
2059 } else {
2060 homedir_len = 0;
2061 }
2062
2063 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2064 logon_script = pdb_get_logon_script(sampass);
2065 } else {
2066 logon_script = NULL;
2067 }
2068 if (logon_script) {
2069 logon_script_len = strlen(logon_script) +1;
2070 } else {
2071 logon_script_len = 0;
2072 }
2073
2074 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2075 profile_path = pdb_get_profile_path(sampass);
2076 } else {
2077 profile_path = NULL;
2078 }
2079 if (profile_path) {
2080 profile_path_len = strlen(profile_path) +1;
2081 } else {
2082 profile_path_len = 0;
2083 }
2084
2085 lm_pw = pdb_get_lanman_passwd(sampass);
2086 if (!lm_pw) {
2087 lm_pw_len = 0;
2088 }
2089
2090 nt_pw = pdb_get_nt_passwd(sampass);
2091 if (!nt_pw) {
2092 nt_pw_len = 0;
2093 }
2094
2095 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
2096 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
2097 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2098 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2099 } else {
2100 nt_pw_hist_len = 0;
2101 }
2102
2103 acct_desc = pdb_get_acct_desc(sampass);
2104 if (acct_desc) {
2105 acct_desc_len = strlen(acct_desc) +1;
2106 } else {
2107 acct_desc_len = 0;
2108 }
2109
2110 workstations = pdb_get_workstations(sampass);
2111 if (workstations) {
2112 workstations_len = strlen(workstations) +1;
2113 } else {
2114 workstations_len = 0;
2115 }
2116
2117 unknown_str = NULL;
2118 unknown_str_len = 0;
2119
2120 munged_dial = pdb_get_munged_dial(sampass);
2121 if (munged_dial) {
2122 munged_dial_len = strlen(munged_dial) +1;
2123 } else {
2124 munged_dial_len = 0;
2125 }
2126
2127 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2128
2129 /* one time to get the size needed */
2130 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
2131 logon_time, /* d */
2132 logoff_time, /* d */
2133 kickoff_time, /* d */
2134 bad_password_time, /* d */
2135 pass_last_set_time, /* d */
2136 pass_can_change_time, /* d */
2137 pass_must_change_time, /* d */
2138 username_len, username, /* B */
2139 domain_len, domain, /* B */
2140 nt_username_len, nt_username, /* B */
2141 fullname_len, fullname, /* B */
2142 homedir_len, homedir, /* B */
2143 dir_drive_len, dir_drive, /* B */
2144 logon_script_len, logon_script, /* B */
2145 profile_path_len, profile_path, /* B */
2146 acct_desc_len, acct_desc, /* B */
2147 workstations_len, workstations, /* B */
2148 unknown_str_len, unknown_str, /* B */
2149 munged_dial_len, munged_dial, /* B */
2150 user_rid, /* d */
2151 group_rid, /* d */
2152 lm_pw_len, lm_pw, /* B */
2153 nt_pw_len, nt_pw, /* B */
2154 nt_pw_hist_len, nt_pw_hist, /* B */
2155 pdb_get_acct_ctrl(sampass), /* w */
2156 pdb_get_logon_divs(sampass), /* w */
2157 pdb_get_hours_len(sampass), /* d */
2158 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2159 pdb_get_bad_password_count(sampass), /* w */
2160 pdb_get_logon_count(sampass), /* w */
2161 pdb_get_unknown_6(sampass)); /* d */
2162
2163 if (size_only) {
2164 return buflen;
2165 }
2166
2167 /* malloc the space needed */
2168 if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2169 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2170 return (-1);
2171 }
2172
2173 /* now for the real call to tdb_pack() */
2174 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
2175 logon_time, /* d */
2176 logoff_time, /* d */
2177 kickoff_time, /* d */
2178 bad_password_time, /* d */
2179 pass_last_set_time, /* d */
2180 pass_can_change_time, /* d */
2181 pass_must_change_time, /* d */
2182 username_len, username, /* B */
2183 domain_len, domain, /* B */
2184 nt_username_len, nt_username, /* B */
2185 fullname_len, fullname, /* B */
2186 homedir_len, homedir, /* B */
2187 dir_drive_len, dir_drive, /* B */
2188 logon_script_len, logon_script, /* B */
2189 profile_path_len, profile_path, /* B */
2190 acct_desc_len, acct_desc, /* B */
2191 workstations_len, workstations, /* B */
2192 unknown_str_len, unknown_str, /* B */
2193 munged_dial_len, munged_dial, /* B */
2194 user_rid, /* d */
2195 group_rid, /* d */
2196 lm_pw_len, lm_pw, /* B */
2197 nt_pw_len, nt_pw, /* B */
2198 nt_pw_hist_len, nt_pw_hist, /* B */
2199 pdb_get_acct_ctrl(sampass), /* w */
2200 pdb_get_logon_divs(sampass), /* w */
2201 pdb_get_hours_len(sampass), /* d */
2202 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2203 pdb_get_bad_password_count(sampass), /* w */
2204 pdb_get_logon_count(sampass), /* w */
2205 pdb_get_unknown_6(sampass)); /* d */
2206
2207 /* check to make sure we got it correct */
2208 if (buflen != len) {
2209 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2210 (unsigned long)buflen, (unsigned long)len));
2211 /* error */
2212 SAFE_FREE (*buf);
2213 return (-1);
2214 }
2215
2216 return (buflen);
2217 }
2218
2219 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2220 {
2221 BOOL result;
2222 uint8 *buf;
2223 int len;
2224
2225 if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2226 return False;
2227
2228 len = init_buffer_from_sam_v2(&buf, src, False);
2229
2230 if (len == -1)
2231 return False;
2232
2233 result = init_sam_from_buffer_v2(*dst, buf, len);
2234 (*dst)->methods = src->methods;
2235
2236 free(buf);
2237
2238 return result;
2239 }
2240
2241 /**********************************************************************
2242 **********************************************************************/
2243
2244 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2245 {
2246 uid_t u_low, u_high;
2247 gid_t g_low, g_high;
2248
2249 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2250 return False;
2251 }
2252
2253 *low = (u_low < g_low) ? u_low : g_low;
2254 *high = (u_high < g_high) ? u_high : g_high;
2255
2256 return True;
2257 }
2258
2259 /******************************************************************
2260 Get the the non-algorithmic RID range if idmap range are defined
2261 ******************************************************************/
2262
2263 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2264 {
2265 uint32 id_low, id_high;
2266
2267 if (!lp_enable_rid_algorithm()) {
2268 *low = BASE_RID;
2269 *high = (uint32)-1;
2270 }
2271
2272 if (!get_free_ugid_range(&id_low, &id_high)) {
2273 return False;
2274 }
2275
2276 *low = algorithmic_pdb_uid_to_user_rid(id_low);
2277 if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2278 *high = (uint32)-1;
2279 } else {
2280 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2281 }
2282
2283 return True;
2284 }
2285
2286 /*********************************************************************
2287 Update the bad password count checking the AP_RESET_COUNT_TIME
2288 *********************************************************************/
2289
2290 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2291 {
2292 time_t LastBadPassword;
2293 uint16 BadPasswordCount;
2294 uint32 resettime;
2295
2296 if (!sampass) return False;
2297
2298 BadPasswordCount = pdb_get_bad_password_count(sampass);
2299 if (!BadPasswordCount) {
2300 DEBUG(9, ("No bad password attempts.\n"));
2301 return True;
2302 }
2303
2304 if (!account_policy_get(AP_RESET_COUNT_TIME, &resettime)) {
2305 DEBUG(0, ("pdb_update_bad_password_count: account_policy_get failed.\n"));
2306 return False;
2307 }
2308
2309 /* First, check if there is a reset time to compare */
2310 if ((resettime == (uint32) -1) || (resettime == 0)) {
2311 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2312 return True;
2313 }
2314
2315 LastBadPassword = pdb_get_bad_password_time(sampass);
2316 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2317 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2318 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2319 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2320 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2321 if (updated) {
2322 *updated = True;
2323 }
2324 }
2325
2326 return True;
2327 }
2328
2329 /*********************************************************************
2330 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2331 *********************************************************************/
2332
2333 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2334 {
2335 uint32 duration;
2336 time_t LastBadPassword;
2337
2338 if (!sampass) return False;
2339
2340 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2341 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2342 pdb_get_username(sampass)));
2343 return True;
2344 }
2345
2346 if (!account_policy_get(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2347 DEBUG(0, ("pdb_update_autolock_flag: account_policy_get failed.\n"));
2348 return False;
2349 }
2350
2351 /* First, check if there is a duration to compare */
2352 if ((duration == (uint32) -1) || (duration == 0)) {
2353 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2354 return True;
2355 }
2356
2357 LastBadPassword = pdb_get_bad_password_time(sampass);
2358 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2359 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2360
2361 if (LastBadPassword == (time_t)0) {
2362 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2363 bad password time. Leaving locked out.\n",
2364 pdb_get_username(sampass) ));
2365 return True;
2366 }
2367
2368 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2369 pdb_set_acct_ctrl(sampass,
2370 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2371 PDB_CHANGED);
2372 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2373 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2374 if (updated) {
2375 *updated = True;
2376 }
2377 }
2378
2379 return True;
2380 }
2381
2382 /*********************************************************************
2383 Increment the bad_password_count
2384 *********************************************************************/
2385
2386 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2387 {
2388 uint32 account_policy_lockout;
2389 BOOL autolock_updated = False, badpw_updated = False;
2390
2391 if (!sampass)
2392 return False;
2393
2394 /* Retrieve the account lockout policy */
2395 if (!account_policy_get(AP_BAD_ATTEMPT_LOCKOUT,
2396 &account_policy_lockout)) {
2397 DEBUG(0, ("pdb_increment_bad_password_count: account_policy_get failed.\n"));
2398 return False;
2399 }
2400
2401 /* If there is no policy, we don't need to continue checking */
2402 if (!account_policy_lockout) {
2403 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2404 return True;
2405 }
2406
2407 /* Check if the autolock needs to be cleared */
2408 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2409 return False;
2410
2411 /* Check if the badpw count needs to be reset */
2412 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2413 return False;
2414
2415 /*
2416 Ok, now we can assume that any resetting that needs to be
2417 done has been done, and just get on with incrementing
2418 and autolocking if necessary
2419 */
2420
2421 pdb_set_bad_password_count(sampass,
2422 pdb_get_bad_password_count(sampass)+1,
2423 PDB_CHANGED);
2424 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2425
2426
2427 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2428 return True;
2429
2430 if (!pdb_set_acct_ctrl(sampass,
2431 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2432 PDB_CHANGED)) {
2433 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2434 return False;
2435 }
2436
2437 return True;
2438 }
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