?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
r12224: adding more characters to the invalid share name string
[Samba.git] / source / passdb / passdb.c
blobe073db3499c572ed450fc961918545fde24abc92
1 /*
2 Unix SMB/CIFS implementation.
3 Password and authentication handling
4 Copyright (C) Jeremy Allison 1996-2001
5 Copyright (C) Luke Kenneth Casson Leighton 1996-1998
6 Copyright (C) Gerald (Jerry) Carter 2000-2001
7 Copyright (C) Andrew Bartlett 2001-2002
8 Copyright (C) Simo Sorce 2003
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25 #include "includes.h"
26
27 #undef DBGC_CLASS
28 #define DBGC_CLASS DBGC_PASSDB
29
30 /******************************************************************
31 get the default domain/netbios name to be used when
32 testing authentication. For example, if you connect
33 to a Windows member server using a bogus domain name, the
34 Windows box will map the BOGUS\user to DOMAIN\user. A
35 standalone box will map to WKS\user.
36 ******************************************************************/
37
38 const char *get_default_sam_name(void)
39 {
40 /* standalone servers can only use the local netbios name */
41 if ( lp_server_role() == ROLE_STANDALONE )
42 return global_myname();
43
44 /* Windows domain members default to the DOMAIN
45 name when not specified */
46 return lp_workgroup();
47 }
48
49 /************************************************************
50 Fill the SAM_ACCOUNT with default values.
51 ***********************************************************/
52
53 void pdb_fill_default_sam(SAM_ACCOUNT *user)
54 {
55 ZERO_STRUCT(user->private_u); /* Don't touch the talloc context */
56
57 /* no initial methods */
58 user->methods = NULL;
59
60 /* Don't change these timestamp settings without a good reason.
61 They are important for NT member server compatibility. */
62
63 user->private_u.logon_time = (time_t)0;
64 user->private_u.pass_last_set_time = (time_t)0;
65 user->private_u.pass_can_change_time = (time_t)0;
66 user->private_u.logoff_time =
67 user->private_u.kickoff_time =
68 user->private_u.pass_must_change_time = get_time_t_max();
69 user->private_u.fields_present = 0x00ffffff;
70 user->private_u.logon_divs = 168; /* hours per week */
71 user->private_u.hours_len = 21; /* 21 times 8 bits = 168 */
72 memset(user->private_u.hours, 0xff, user->private_u.hours_len); /* available at all hours */
73 user->private_u.bad_password_count = 0;
74 user->private_u.logon_count = 0;
75 user->private_u.unknown_6 = 0x000004ec; /* don't know */
76
77 /* Some parts of samba strlen their pdb_get...() returns,
78 so this keeps the interface unchanged for now. */
79
80 user->private_u.username = "";
81 user->private_u.domain = "";
82 user->private_u.nt_username = "";
83 user->private_u.full_name = "";
84 user->private_u.home_dir = "";
85 user->private_u.logon_script = "";
86 user->private_u.profile_path = "";
87 user->private_u.acct_desc = "";
88 user->private_u.workstations = "";
89 user->private_u.unknown_str = "";
90 user->private_u.munged_dial = "";
91
92 user->private_u.plaintext_pw = NULL;
93
94 /*
95 Unless we know otherwise have a Account Control Bit
96 value of 'normal user'. This helps User Manager, which
97 asks for a filtered list of users.
98 */
99
100 user->private_u.acct_ctrl = ACB_NORMAL;
101 }
102
103 static void destroy_pdb_talloc(SAM_ACCOUNT **user)
104 {
105 if (*user) {
106 data_blob_clear_free(&((*user)->private_u.lm_pw));
107 data_blob_clear_free(&((*user)->private_u.nt_pw));
108
109 if((*user)->private_u.plaintext_pw!=NULL)
110 memset((*user)->private_u.plaintext_pw,'\0',strlen((*user)->private_u.plaintext_pw));
111 talloc_destroy((*user)->mem_ctx);
112 *user = NULL;
113 }
114 }
115
116
117 /**********************************************************************
118 Allocates memory and initialises a struct sam_passwd on supplied mem_ctx.
119 ***********************************************************************/
120
121 NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
122 {
123 if (*user != NULL) {
124 DEBUG(0,("pdb_init_sam_talloc: SAM_ACCOUNT was non NULL\n"));
125 #if 0
126 smb_panic("non-NULL pointer passed to pdb_init_sam\n");
127 #endif
128 return NT_STATUS_UNSUCCESSFUL;
129 }
130
131 if (!mem_ctx) {
132 DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
133 return NT_STATUS_UNSUCCESSFUL;
134 }
135
136 *user=TALLOC_P(mem_ctx, SAM_ACCOUNT);
137
138 if (*user==NULL) {
139 DEBUG(0,("pdb_init_sam_talloc: error while allocating memory\n"));
140 return NT_STATUS_NO_MEMORY;
141 }
142
143 (*user)->mem_ctx = mem_ctx;
144
145 (*user)->free_fn = NULL;
146
147 pdb_fill_default_sam(*user);
148
149 return NT_STATUS_OK;
150 }
151
152
153 /*************************************************************
154 Allocates memory and initialises a struct sam_passwd.
155 ************************************************************/
156
157 NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
158 {
159 TALLOC_CTX *mem_ctx;
160 NTSTATUS nt_status;
161
162 mem_ctx = talloc_init("passdb internal SAM_ACCOUNT allocation");
163
164 if (!mem_ctx) {
165 DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
166 return NT_STATUS_NO_MEMORY;
167 }
168
169 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
170 talloc_destroy(mem_ctx);
171 return nt_status;
172 }
173
174 (*user)->free_fn = destroy_pdb_talloc;
175
176 return NT_STATUS_OK;
177 }
178
179 /**************************************************************************
180 * This function will take care of all the steps needed to correctly
181 * allocate and set the user SID, please do use this function to create new
182 * users, messing with SIDs is not good.
183 *
184 * account_data must be provided initialized, pwd may be null.
185 * SSS
186 ***************************************************************************/
187
188 static NTSTATUS pdb_set_sam_sids(SAM_ACCOUNT *account_data, const struct passwd *pwd)
189 {
190 const char *guest_account = lp_guestaccount();
191 GROUP_MAP map;
192 BOOL ret;
193
194 if (!account_data || !pwd) {
195 return NT_STATUS_INVALID_PARAMETER;
196 }
197
198 /* this is a hack this thing should not be set
199 this way --SSS */
200 if (!(guest_account && *guest_account)) {
201 DEBUG(1, ("NULL guest account!?!?\n"));
202 return NT_STATUS_UNSUCCESSFUL;
203 } else {
204 /* Ensure this *must* be set right */
205 if (strcmp(pwd->pw_name, guest_account) == 0) {
206 if (!pdb_set_user_sid_from_rid(account_data, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
207 return NT_STATUS_UNSUCCESSFUL;
208 }
209 if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
210 return NT_STATUS_UNSUCCESSFUL;
211 }
212 return NT_STATUS_OK;
213 }
214 }
215
216 if (!pdb_set_user_sid_from_rid(account_data, algorithmic_pdb_uid_to_user_rid(pwd->pw_uid), PDB_SET)) {
217 DEBUG(0,("Can't set User SID from RID!\n"));
218 return NT_STATUS_INVALID_PARAMETER;
219 }
220
221 /* call the mapping code here */
222 become_root();
223 ret = pdb_getgrgid(&map, pwd->pw_gid);
224 unbecome_root();
225
226 if( ret ) {
227 if (!pdb_set_group_sid(account_data, &map.sid, PDB_SET)){
228 DEBUG(0,("Can't set Group SID!\n"));
229 return NT_STATUS_INVALID_PARAMETER;
230 }
231 }
232 else {
233 if (!pdb_set_group_sid_from_rid(account_data, pdb_gid_to_group_rid(pwd->pw_gid), PDB_SET)) {
234 DEBUG(0,("Can't set Group SID\n"));
235 return NT_STATUS_INVALID_PARAMETER;
236 }
237 }
238
239 return NT_STATUS_OK;
240 }
241
242 /*************************************************************
243 Initialises a struct sam_passwd with sane values.
244 ************************************************************/
245
246 NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
247 {
248 NTSTATUS ret;
249
250 if (!pwd) {
251 return NT_STATUS_UNSUCCESSFUL;
252 }
253
254 pdb_fill_default_sam(sam_account);
255
256 pdb_set_username(sam_account, pwd->pw_name, PDB_SET);
257 pdb_set_fullname(sam_account, pwd->pw_gecos, PDB_SET);
258
259 pdb_set_unix_homedir(sam_account, pwd->pw_dir, PDB_SET);
260
261 pdb_set_domain (sam_account, get_global_sam_name(), PDB_DEFAULT);
262
263 /* When we get a proper uid -> SID and SID -> uid allocation
264 mechinism, we should call it here.
265
266 We can't just set this to 0 or allow it only to be filled
267 in when added to the backend, because the user's SID
268 may already be in security descriptors etc.
269
270 -- abartlet 11-May-02
271 */
272
273 ret = pdb_set_sam_sids(sam_account, pwd);
274 if (!NT_STATUS_IS_OK(ret)) return ret;
275
276 /* check if this is a user account or a machine account */
277 if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
278 {
279 pdb_set_profile_path(sam_account,
280 talloc_sub_specified((sam_account)->mem_ctx,
281 lp_logon_path(),
282 pwd->pw_name, global_myname(),
283 pwd->pw_uid, pwd->pw_gid),
284 PDB_DEFAULT);
285
286 pdb_set_homedir(sam_account,
287 talloc_sub_specified((sam_account)->mem_ctx,
288 lp_logon_home(),
289 pwd->pw_name, global_myname(),
290 pwd->pw_uid, pwd->pw_gid),
291 PDB_DEFAULT);
292
293 pdb_set_dir_drive(sam_account,
294 talloc_sub_specified((sam_account)->mem_ctx,
295 lp_logon_drive(),
296 pwd->pw_name, global_myname(),
297 pwd->pw_uid, pwd->pw_gid),
298 PDB_DEFAULT);
299
300 pdb_set_logon_script(sam_account,
301 talloc_sub_specified((sam_account)->mem_ctx,
302 lp_logon_script(),
303 pwd->pw_name, global_myname(),
304 pwd->pw_uid, pwd->pw_gid),
305 PDB_DEFAULT);
306 if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT)) {
307 DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", pwd->pw_name));
308 return NT_STATUS_UNSUCCESSFUL;
309 }
310 } else {
311 if (!pdb_set_acct_ctrl(sam_account, ACB_WSTRUST, PDB_DEFAULT)) {
312 DEBUG(1, ("Failed to set 'trusted workstation account' flags for user %s.\n", pwd->pw_name));
313 return NT_STATUS_UNSUCCESSFUL;
314 }
315 }
316 return NT_STATUS_OK;
317 }
318
319
320 /*************************************************************
321 Initialises a struct sam_passwd with sane values.
322 ************************************************************/
323
324 NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
325 {
326 NTSTATUS nt_status;
327
328 if (!pwd) {
329 new_sam_acct = NULL;
330 return NT_STATUS_INVALID_PARAMETER;
331 }
332
333 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
334 new_sam_acct = NULL;
335 return nt_status;
336 }
337
338 if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
339 pdb_free_sam(new_sam_acct);
340 new_sam_acct = NULL;
341 return nt_status;
342 }
343
344 return NT_STATUS_OK;
345 }
346
347
348 /*************************************************************
349 Initialises a SAM_ACCOUNT ready to add a new account, based
350 on the UNIX user. Pass in a RID if you have one
351 ************************************************************/
352
353 NTSTATUS pdb_init_sam_new(SAM_ACCOUNT **new_sam_acct, const char *username,
354 uint32 rid)
355 {
356 NTSTATUS nt_status = NT_STATUS_NO_MEMORY;
357 struct passwd *pwd;
358 BOOL ret;
359
360 pwd = Get_Pwnam(username);
361
362 if (!pwd)
363 return NT_STATUS_NO_SUCH_USER;
364
365 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(new_sam_acct, pwd))) {
366 *new_sam_acct = NULL;
367 return nt_status;
368 }
369
370 /* see if we need to generate a new rid using the 2.2 algorithm */
371 if ( rid == 0 && lp_enable_rid_algorithm() ) {
372 DEBUG(10,("pdb_init_sam_new: no RID specified. Generating one via old algorithm\n"));
373 rid = algorithmic_pdb_uid_to_user_rid(pwd->pw_uid);
374 }
375
376 /* set the new SID */
377
378 ret = pdb_set_user_sid_from_rid( *new_sam_acct, rid, PDB_SET );
379
380 return (ret ? NT_STATUS_OK : NT_STATUS_NO_SUCH_USER);
381 }
382
383
384 /**
385 * Free the contets of the SAM_ACCOUNT, but not the structure.
386 *
387 * Also wipes the LM and NT hashes and plaintext password from
388 * memory.
389 *
390 * @param user SAM_ACCOUNT to free members of.
391 **/
392
393 static void pdb_free_sam_contents(SAM_ACCOUNT *user)
394 {
395
396 /* Kill off sensitive data. Free()ed by the
397 talloc mechinism */
398
399 data_blob_clear_free(&(user->private_u.lm_pw));
400 data_blob_clear_free(&(user->private_u.nt_pw));
401 if (user->private_u.plaintext_pw!=NULL)
402 memset(user->private_u.plaintext_pw,'\0',strlen(user->private_u.plaintext_pw));
403
404 if (user->private_u.backend_private_data && user->private_u.backend_private_data_free_fn) {
405 user->private_u.backend_private_data_free_fn(&user->private_u.backend_private_data);
406 }
407 }
408
409
410 /************************************************************
411 Reset the SAM_ACCOUNT and free the NT/LM hashes.
412 ***********************************************************/
413
414 NTSTATUS pdb_reset_sam(SAM_ACCOUNT *user)
415 {
416 if (user == NULL) {
417 DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
418 #if 0
419 smb_panic("NULL pointer passed to pdb_free_sam\n");
420 #endif
421 return NT_STATUS_UNSUCCESSFUL;
422 }
423
424 pdb_free_sam_contents(user);
425
426 pdb_fill_default_sam(user);
427
428 return NT_STATUS_OK;
429 }
430
431
432 /************************************************************
433 Free the SAM_ACCOUNT and the member pointers.
434 ***********************************************************/
435
436 NTSTATUS pdb_free_sam(SAM_ACCOUNT **user)
437 {
438 if (*user == NULL) {
439 DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
440 #if 0
441 smb_panic("NULL pointer passed to pdb_free_sam\n");
442 #endif
443 return NT_STATUS_UNSUCCESSFUL;
444 }
445
446 pdb_free_sam_contents(*user);
447
448 if ((*user)->free_fn) {
449 (*user)->free_fn(user);
450 }
451
452 return NT_STATUS_OK;
453 }
454
455 /**********************************************************
456 Encode the account control bits into a string.
457 length = length of string to encode into (including terminating
458 null). length *MUST BE MORE THAN 2* !
459 **********************************************************/
460
461 char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
462 {
463 static fstring acct_str;
464
465 size_t i = 0;
466
467 SMB_ASSERT(length <= sizeof(acct_str));
468
469 acct_str[i++] = '[';
470
471 if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
472 if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
473 if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
474 if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
475 if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
476 if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
477 if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
478 if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
479 if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
480 if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
481 if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
482
483 for ( ; i < length - 2 ; i++ )
484 acct_str[i] = ' ';
485
486 i = length - 2;
487 acct_str[i++] = ']';
488 acct_str[i++] = '\0';
489
490 return acct_str;
491 }
492
493 /**********************************************************
494 Decode the account control bits from a string.
495 **********************************************************/
496
497 uint16 pdb_decode_acct_ctrl(const char *p)
498 {
499 uint16 acct_ctrl = 0;
500 BOOL finished = False;
501
502 /*
503 * Check if the account type bits have been encoded after the
504 * NT password (in the form [NDHTUWSLXI]).
505 */
506
507 if (*p != '[')
508 return 0;
509
510 for (p++; *p && !finished; p++) {
511 switch (*p) {
512 case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
513 case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
514 case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
515 case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
516 case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
517 case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
518 case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
519 case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
520 case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
521 case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
522 case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
523 case ' ': { break; }
524 case ':':
525 case '\n':
526 case '\0':
527 case ']':
528 default: { finished = True; }
529 }
530 }
531
532 return acct_ctrl;
533 }
534
535 /*************************************************************
536 Routine to set 32 hex password characters from a 16 byte array.
537 **************************************************************/
538
539 void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
540 {
541 if (pwd != NULL) {
542 int i;
543 for (i = 0; i < 16; i++)
544 slprintf(&p[i*2], 3, "%02X", pwd[i]);
545 } else {
546 if (acct_ctrl & ACB_PWNOTREQ)
547 safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
548 else
549 safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
550 }
551 }
552
553 /*************************************************************
554 Routine to get the 32 hex characters and turn them
555 into a 16 byte array.
556 **************************************************************/
557
558 BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
559 {
560 int i;
561 unsigned char lonybble, hinybble;
562 const char *hexchars = "0123456789ABCDEF";
563 char *p1, *p2;
564
565 if (!p)
566 return (False);
567
568 for (i = 0; i < 32; i += 2) {
569 hinybble = toupper(p[i]);
570 lonybble = toupper(p[i + 1]);
571
572 p1 = strchr(hexchars, hinybble);
573 p2 = strchr(hexchars, lonybble);
574
575 if (!p1 || !p2)
576 return (False);
577
578 hinybble = PTR_DIFF(p1, hexchars);
579 lonybble = PTR_DIFF(p2, hexchars);
580
581 pwd[i / 2] = (hinybble << 4) | lonybble;
582 }
583 return (True);
584 }
585
586 /*************************************************************
587 Routine to set 42 hex hours characters from a 21 byte array.
588 **************************************************************/
589
590 void pdb_sethexhours(char *p, const unsigned char *hours)
591 {
592 if (hours != NULL) {
593 int i;
594 for (i = 0; i < 21; i++) {
595 slprintf(&p[i*2], 3, "%02X", hours[i]);
596 }
597 } else {
598 safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
599 }
600 }
601
602 /*************************************************************
603 Routine to get the 42 hex characters and turn them
604 into a 21 byte array.
605 **************************************************************/
606
607 BOOL pdb_gethexhours(const char *p, unsigned char *hours)
608 {
609 int i;
610 unsigned char lonybble, hinybble;
611 const char *hexchars = "0123456789ABCDEF";
612 char *p1, *p2;
613
614 if (!p) {
615 return (False);
616 }
617
618 for (i = 0; i < 42; i += 2) {
619 hinybble = toupper(p[i]);
620 lonybble = toupper(p[i + 1]);
621
622 p1 = strchr(hexchars, hinybble);
623 p2 = strchr(hexchars, lonybble);
624
625 if (!p1 || !p2) {
626 return (False);
627 }
628
629 hinybble = PTR_DIFF(p1, hexchars);
630 lonybble = PTR_DIFF(p2, hexchars);
631
632 hours[i / 2] = (hinybble << 4) | lonybble;
633 }
634 return (True);
635 }
636
637 int algorithmic_rid_base(void)
638 {
639 static int rid_offset = 0;
640
641 if (rid_offset != 0)
642 return rid_offset;
643
644 rid_offset = lp_algorithmic_rid_base();
645
646 if (rid_offset < BASE_RID) {
647 /* Try to prevent admin foot-shooting, we can't put algorithmic
648 rids below 1000, that's the 'well known RIDs' on NT */
649 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
650 rid_offset = BASE_RID;
651 }
652 if (rid_offset & 1) {
653 DEBUG(0, ("algorithmic rid base must be even\n"));
654 rid_offset += 1;
655 }
656 return rid_offset;
657 }
658
659 /*******************************************************************
660 Converts NT user RID to a UNIX uid.
661 ********************************************************************/
662
663 uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
664 {
665 int rid_offset = algorithmic_rid_base();
666 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
667 }
668
669 /*******************************************************************
670 converts UNIX uid to an NT User RID.
671 ********************************************************************/
672
673 uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
674 {
675 int rid_offset = algorithmic_rid_base();
676 return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
677 }
678
679 /*******************************************************************
680 Converts NT group RID to a UNIX gid.
681 ********************************************************************/
682
683 gid_t pdb_group_rid_to_gid(uint32 group_rid)
684 {
685 int rid_offset = algorithmic_rid_base();
686 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
687 }
688
689 /*******************************************************************
690 converts NT Group RID to a UNIX uid.
691
692 warning: you must not call that function only
693 you must do a call to the group mapping first.
694 there is not anymore a direct link between the gid and the rid.
695 ********************************************************************/
696
697 uint32 pdb_gid_to_group_rid(gid_t gid)
698 {
699 int rid_offset = algorithmic_rid_base();
700 return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
701 }
702
703 /*******************************************************************
704 Decides if a RID is a well known RID.
705 ********************************************************************/
706
707 static BOOL pdb_rid_is_well_known(uint32 rid)
708 {
709 /* Not using rid_offset here, because this is the actual
710 NT fixed value (1000) */
711
712 return (rid < BASE_RID);
713 }
714
715 /*******************************************************************
716 Decides if a RID is a user or group RID.
717 ********************************************************************/
718
719 BOOL algorithmic_pdb_rid_is_user(uint32 rid)
720 {
721 if(pdb_rid_is_well_known(rid)) {
722 /*
723 * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
724 * and DOMAIN_USER_RID_GUEST.
725 */
726 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
727 return True;
728 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
729 return True;
730 }
731 return False;
732 }
733
734 /*******************************************************************
735 Look up a rid in the SAM we're responsible for (i.e. passdb)
736 ********************************************************************/
737
738 BOOL lookup_global_sam_rid(uint32 rid, fstring name,
739 enum SID_NAME_USE *psid_name_use)
740 {
741 SAM_ACCOUNT *sam_account = NULL;
742 GROUP_MAP map;
743 BOOL ret;
744 DOM_SID sid;
745
746 *psid_name_use = SID_NAME_UNKNOWN;
747
748 DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
749 (unsigned int)rid));
750
751 sid_copy(&sid, get_global_sam_sid());
752 sid_append_rid(&sid, rid);
753
754 /* see if the passdb can help us with the name of the user */
755 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
756 return False;
757 }
758
759 /* BEING ROOT BLLOCK */
760 become_root();
761 if (pdb_getsampwsid(sam_account, &sid)) {
762 unbecome_root(); /* -----> EXIT BECOME_ROOT() */
763 fstrcpy(name, pdb_get_username(sam_account));
764 *psid_name_use = SID_NAME_USER;
765
766 pdb_free_sam(&sam_account);
767
768 return True;
769 }
770 pdb_free_sam(&sam_account);
771
772 ret = pdb_getgrsid(&map, sid);
773 unbecome_root();
774 /* END BECOME_ROOT BLOCK */
775
776 if ( ret ) {
777 if (map.gid!=(gid_t)-1) {
778 DEBUG(5,("lookup_global_sam_rid: mapped group %s to "
779 "gid %u\n", map.nt_name,
780 (unsigned int)map.gid));
781 } else {
782 DEBUG(5,("lookup_global_sam_rid: mapped group %s to "
783 "no unix gid. Returning name.\n",
784 map.nt_name));
785 }
786
787 fstrcpy(name, map.nt_name);
788 *psid_name_use = map.sid_name_use;
789 return True;
790 }
791
792 if (rid == DOMAIN_USER_RID_ADMIN) {
793 *psid_name_use = SID_NAME_USER;
794 fstrcpy(name, "Administrator");
795 return True;
796 }
797
798 if (algorithmic_pdb_rid_is_user(rid)) {
799 uid_t uid;
800 struct passwd *pw = NULL;
801
802 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
803
804 uid = algorithmic_pdb_user_rid_to_uid(rid);
805 pw = sys_getpwuid( uid );
806
807 DEBUG(5,("lookup_global_sam_rid: looking up uid %u %s\n",
808 (unsigned int)uid, pw ? "succeeded" : "failed" ));
809
810 if ( !pw )
811 fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
812 else
813 fstrcpy( name, pw->pw_name );
814
815 DEBUG(5,("lookup_global_sam_rid: found user %s for rid %u\n",
816 name, (unsigned int)rid ));
817
818 *psid_name_use = SID_NAME_USER;
819
820 return ( pw != NULL );
821 } else {
822 gid_t gid;
823 struct group *gr;
824
825 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
826
827 gid = pdb_group_rid_to_gid(rid);
828 gr = getgrgid(gid);
829
830 DEBUG(5,("lookup_global_sam_rid: looking up gid %u %s\n",
831 (unsigned int)gid, gr ? "succeeded" : "failed" ));
832
833 if( !gr )
834 fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
835 else
836 fstrcpy( name, gr->gr_name);
837
838 DEBUG(5,("lookup_global_sam_rid: found group %s for rid %u\n",
839 name, (unsigned int)rid ));
840
841 /* assume algorithmic groups are domain global groups */
842
843 *psid_name_use = SID_NAME_DOM_GRP;
844
845 return ( gr != NULL );
846 }
847 }
848
849 /*******************************************************************
850 Convert a name into a SID. Used in the lookup name rpc.
851 ********************************************************************/
852
853 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
854 {
855 DOM_SID local_sid;
856 DOM_SID sid;
857 fstring user;
858 SAM_ACCOUNT *sam_account = NULL;
859 struct group *grp;
860 GROUP_MAP map;
861
862 *psid_name_use = SID_NAME_UNKNOWN;
863
864 /*
865 * user may be quoted a const string, and map_username and
866 * friends can modify it. Make a modifiable copy. JRA.
867 */
868
869 fstrcpy(user, c_user);
870
871 sid_copy(&local_sid, get_global_sam_sid());
872
873 if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
874 fstring sid_str;
875 sid_copy( psid, &sid);
876 sid_to_string(sid_str, &sid);
877 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
878 (unsigned int)*psid_name_use ));
879 return True;
880 }
881
882 (void)map_username(user);
883
884 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
885 return False;
886 }
887
888 /* BEGIN ROOT BLOCK */
889
890 become_root();
891 if (pdb_getsampwnam(sam_account, user)) {
892 unbecome_root();
893 sid_copy(psid, pdb_get_user_sid(sam_account));
894 *psid_name_use = SID_NAME_USER;
895
896 pdb_free_sam(&sam_account);
897 return True;
898 }
899
900 pdb_free_sam(&sam_account);
901
902 /*
903 * Maybe it was a group ?
904 */
905
906 /* check if it's a mapped group */
907 if (pdb_getgrnam(&map, user)) {
908 /* yes it's a mapped group */
909 sid_copy(&local_sid, &map.sid);
910 *psid_name_use = map.sid_name_use;
911 } else {
912 /* it's not a mapped group */
913 grp = getgrnam(user);
914 if(!grp) {
915 unbecome_root(); /* ---> exit form block */
916 return False;
917 }
918
919 /*
920 *check if it's mapped, if it is reply it doesn't exist
921 *
922 * that's to prevent this case:
923 *
924 * unix group ug is mapped to nt group ng
925 * someone does a lookup on ug
926 * we must not reply as it doesn't "exist" anymore
927 * for NT. For NT only ng exists.
928 * JFM, 30/11/2001
929 */
930
931 if (pdb_getgrgid(&map, grp->gr_gid)){
932 unbecome_root(); /* ---> exit form block */
933 return False;
934 }
935
936 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
937 *psid_name_use = SID_NAME_ALIAS;
938 }
939 unbecome_root();
940 /* END ROOT BLOCK */
941
942 sid_copy( psid, &local_sid);
943
944 return True;
945 }
946
947 /*************************************************************
948 Change a password entry in the local smbpasswd file.
949 *************************************************************/
950
951 BOOL local_password_change(const char *user_name, int local_flags,
952 const char *new_passwd,
953 char *err_str, size_t err_str_len,
954 char *msg_str, size_t msg_str_len)
955 {
956 SAM_ACCOUNT *sam_pass=NULL;
957 uint16 other_acb;
958
959 *err_str = '\0';
960 *msg_str = '\0';
961
962 /* Get the smb passwd entry for this user */
963 pdb_init_sam(&sam_pass);
964
965 become_root();
966 if(!pdb_getsampwnam(sam_pass, user_name)) {
967 unbecome_root();
968 pdb_free_sam(&sam_pass);
969
970 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
971 /* Might not exist in /etc/passwd. Use rid algorithm here */
972 if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
973 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);
974 return False;
975 }
976 } else {
977 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
978 return False;
979 }
980 } else {
981 unbecome_root();
982 /* the entry already existed */
983 local_flags &= ~LOCAL_ADD_USER;
984 }
985
986 /* the 'other' acb bits not being changed here */
987 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
988 if (local_flags & LOCAL_TRUST_ACCOUNT) {
989 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
990 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
991 pdb_free_sam(&sam_pass);
992 return False;
993 }
994 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
995 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
996 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
997 pdb_free_sam(&sam_pass);
998 return False;
999 }
1000 } else {
1001 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1002 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1003 pdb_free_sam(&sam_pass);
1004 return False;
1005 }
1006 }
1007
1008 /*
1009 * We are root - just write the new password
1010 * and the valid last change time.
1011 */
1012
1013 if (local_flags & LOCAL_DISABLE_USER) {
1014 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1015 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1016 pdb_free_sam(&sam_pass);
1017 return False;
1018 }
1019 } else if (local_flags & LOCAL_ENABLE_USER) {
1020 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1021 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1022 pdb_free_sam(&sam_pass);
1023 return False;
1024 }
1025 }
1026
1027 if (local_flags & LOCAL_SET_NO_PASSWORD) {
1028 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1029 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1030 pdb_free_sam(&sam_pass);
1031 return False;
1032 }
1033 } else if (local_flags & LOCAL_SET_PASSWORD) {
1034 /*
1035 * If we're dealing with setting a completely empty user account
1036 * ie. One with a password of 'XXXX', but not set disabled (like
1037 * an account created from scratch) then if the old password was
1038 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1039 * We remove that as we're giving this user their first password
1040 * and the decision hasn't really been made to disable them (ie.
1041 * don't create them disabled). JRA.
1042 */
1043 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1044 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1045 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1046 pdb_free_sam(&sam_pass);
1047 return False;
1048 }
1049 }
1050 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1051 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1052 pdb_free_sam(&sam_pass);
1053 return False;
1054 }
1055
1056 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1057 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1058 pdb_free_sam(&sam_pass);
1059 return False;
1060 }
1061 }
1062
1063 if (local_flags & LOCAL_ADD_USER) {
1064 if (pdb_add_sam_account(sam_pass)) {
1065 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1066 pdb_free_sam(&sam_pass);
1067 return True;
1068 } else {
1069 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1070 pdb_free_sam(&sam_pass);
1071 return False;
1072 }
1073 } else if (local_flags & LOCAL_DELETE_USER) {
1074 if (!pdb_delete_sam_account(sam_pass)) {
1075 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1076 pdb_free_sam(&sam_pass);
1077 return False;
1078 }
1079 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1080 } else {
1081 if(!pdb_update_sam_account(sam_pass)) {
1082 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1083 pdb_free_sam(&sam_pass);
1084 return False;
1085 }
1086 if(local_flags & LOCAL_DISABLE_USER)
1087 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1088 else if (local_flags & LOCAL_ENABLE_USER)
1089 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1090 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1091 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1092 }
1093
1094 pdb_free_sam(&sam_pass);
1095 return True;
1096 }
1097
1098 /****************************************************************************
1099 Convert a uid to SID - algorithmic.
1100 ****************************************************************************/
1101
1102 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1103 {
1104 if ( !lp_enable_rid_algorithm() )
1105 return NULL;
1106
1107 DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1108 sid_copy( psid, get_global_sam_sid() );
1109 sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
1110 DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
1111 (unsigned int)uid, sid_string_static(psid) ));
1112
1113 return psid;
1114 }
1115
1116 /****************************************************************************
1117 Convert a uid to SID - locally.
1118 ****************************************************************************/
1119
1120 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1121 {
1122 SAM_ACCOUNT *sampw = NULL;
1123 struct passwd *unix_pw;
1124 BOOL ret;
1125
1126 unix_pw = sys_getpwuid( uid );
1127
1128 if ( !unix_pw ) {
1129 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1130 return algorithmic_uid_to_sid( psid, uid);
1131 }
1132
1133 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1134 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1135 return NULL;
1136 }
1137
1138 become_root();
1139 ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1140 unbecome_root();
1141
1142 if ( ret )
1143 sid_copy( psid, pdb_get_user_sid(sampw) );
1144 else {
1145 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1146 unix_pw->pw_name, (unsigned long)uid));
1147
1148 algorithmic_uid_to_sid( psid, uid);
1149 }
1150
1151 pdb_free_sam(&sampw);
1152
1153 DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
1154 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1155
1156 return psid;
1157 }
1158
1159 /****************************************************************************
1160 Convert a SID to uid - locally.
1161 ****************************************************************************/
1162
1163 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1164 {
1165 SAM_ACCOUNT *sampw = NULL;
1166 struct passwd *unix_pw;
1167 const char *user_name;
1168
1169 *name_type = SID_NAME_UNKNOWN;
1170
1171 /*
1172 * We can only convert to a uid if this is our local
1173 * Domain SID (ie. we are the controling authority).
1174 */
1175 if (!sid_check_is_in_our_domain(psid) ) {
1176 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1177 return False;
1178 }
1179
1180 /* lookup the user account */
1181
1182 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1183 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1184 return False;
1185 }
1186
1187 become_root();
1188 if ( !pdb_getsampwsid(sampw, psid) ) {
1189 unbecome_root();
1190 pdb_free_sam(&sampw);
1191 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1192 sid_string_static(psid)));
1193 return False;
1194 }
1195 unbecome_root();
1196
1197 user_name = pdb_get_username(sampw);
1198
1199 unix_pw = sys_getpwnam( user_name );
1200
1201 if ( !unix_pw ) {
1202 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1203 user_name));
1204 pdb_free_sam( &sampw );
1205 return False;
1206 }
1207
1208 *puid = unix_pw->pw_uid;
1209
1210 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1211 (unsigned int)*puid, user_name ));
1212
1213 *name_type = SID_NAME_USER;
1214 pdb_free_sam( &sampw );
1215 return True;
1216 }
1217
1218 /****************************************************************************
1219 Convert a gid to SID - locally.
1220 ****************************************************************************/
1221
1222 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1223 {
1224 GROUP_MAP group;
1225 BOOL ret;
1226
1227 /* we don't need to disable winbindd since the gid is stored in
1228 the GROUP_MAP object */
1229
1230 /* done as root since ldap backend requires root to open a connection */
1231
1232 become_root();
1233 ret = pdb_getgrgid( &group, gid );
1234 unbecome_root();
1235
1236 if ( !ret ) {
1237
1238 /* fallback to rid mapping if enabled */
1239
1240 if ( lp_enable_rid_algorithm() ) {
1241 sid_copy(psid, get_global_sam_sid());
1242 sid_append_rid(psid, pdb_gid_to_group_rid(gid));
1243
1244 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1245 (unsigned int)gid, sid_string_static(psid)));
1246
1247 return psid;
1248 }
1249 else
1250 return NULL;
1251 }
1252
1253 sid_copy( psid, &group.sid );
1254
1255 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1256 (unsigned int)gid, sid_string_static(psid)));
1257
1258 return psid;
1259 }
1260
1261 /****************************************************************************
1262 Convert a SID to gid - locally.
1263 ****************************************************************************/
1264
1265 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1266 {
1267 uint32 rid;
1268 GROUP_MAP group;
1269 BOOL ret;
1270
1271 *name_type = SID_NAME_UNKNOWN;
1272
1273 /* This call can enumerate group mappings for foreign sids as well.
1274 So don't check for a match against our domain SID */
1275
1276 /* we don't need to disable winbindd since the gid is stored in
1277 the GROUP_MAP object */
1278
1279 become_root();
1280 ret = pdb_getgrsid(&group, *psid);
1281 unbecome_root();
1282
1283 if ( !ret ) {
1284
1285 /* Fallback to algorithmic rid mapping if enabled */
1286
1287 if ( lp_enable_rid_algorithm() ) {
1288
1289 if (!sid_check_is_in_our_domain(psid) ) {
1290 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1291 return False;
1292 }
1293
1294 if (!sid_peek_rid(psid, &rid)) {
1295 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1296 return False;
1297 }
1298
1299 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1300
1301 if (algorithmic_pdb_rid_is_user(rid)) {
1302 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1303 return False;
1304 } else {
1305 *pgid = pdb_group_rid_to_gid(rid);
1306 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1307 return True;
1308 }
1309 }
1310
1311 return False;
1312 }
1313
1314 *pgid = group.gid;
1315 *name_type = group.sid_name_use;
1316
1317 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1318 (unsigned int)*pgid));
1319
1320 return True;
1321 }
1322
1323 /**********************************************************************
1324 Marshall/unmarshall SAM_ACCOUNT structs.
1325 *********************************************************************/
1326
1327 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1328 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1329 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1330
1331 /**********************************************************************
1332 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1333 *********************************************************************/
1334
1335 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1336 {
1337 return(init_sam_from_buffer_v2(sampass, buf, buflen));
1338 }
1339
1340 /**********************************************************************
1341 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1342 *********************************************************************/
1343
1344 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1345 {
1346 return(init_buffer_from_sam_v2(buf, sampass, size_only));
1347 }
1348
1349
1350 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1351 {
1352
1353 /* times are stored as 32bit integer
1354 take care on system with 64bit wide time_t
1355 --SSS */
1356 uint32 logon_time,
1357 logoff_time,
1358 kickoff_time,
1359 pass_last_set_time,
1360 pass_can_change_time,
1361 pass_must_change_time;
1362 char *username = NULL;
1363 char *domain = NULL;
1364 char *nt_username = NULL;
1365 char *dir_drive = NULL;
1366 char *unknown_str = NULL;
1367 char *munged_dial = NULL;
1368 char *fullname = NULL;
1369 char *homedir = NULL;
1370 char *logon_script = NULL;
1371 char *profile_path = NULL;
1372 char *acct_desc = NULL;
1373 char *workstations = NULL;
1374 uint32 username_len, domain_len, nt_username_len,
1375 dir_drive_len, unknown_str_len, munged_dial_len,
1376 fullname_len, homedir_len, logon_script_len,
1377 profile_path_len, acct_desc_len, workstations_len;
1378
1379 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1380 uint16 acct_ctrl, logon_divs;
1381 uint16 bad_password_count, logon_count;
1382 uint8 *hours = NULL;
1383 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1384 uint32 len = 0;
1385 uint32 lm_pw_len, nt_pw_len, hourslen;
1386 BOOL ret = True;
1387
1388 if(sampass == NULL || buf == NULL) {
1389 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1390 return False;
1391 }
1392
1393 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1394
1395 /* unpack the buffer into variables */
1396 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1397 &logon_time, /* d */
1398 &logoff_time, /* d */
1399 &kickoff_time, /* d */
1400 &pass_last_set_time, /* d */
1401 &pass_can_change_time, /* d */
1402 &pass_must_change_time, /* d */
1403 &username_len, &username, /* B */
1404 &domain_len, &domain, /* B */
1405 &nt_username_len, &nt_username, /* B */
1406 &fullname_len, &fullname, /* B */
1407 &homedir_len, &homedir, /* B */
1408 &dir_drive_len, &dir_drive, /* B */
1409 &logon_script_len, &logon_script, /* B */
1410 &profile_path_len, &profile_path, /* B */
1411 &acct_desc_len, &acct_desc, /* B */
1412 &workstations_len, &workstations, /* B */
1413 &unknown_str_len, &unknown_str, /* B */
1414 &munged_dial_len, &munged_dial, /* B */
1415 &user_rid, /* d */
1416 &group_rid, /* d */
1417 &lm_pw_len, &lm_pw_ptr, /* B */
1418 &nt_pw_len, &nt_pw_ptr, /* B */
1419 &acct_ctrl, /* w */
1420 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1421 &logon_divs, /* w */
1422 &hours_len, /* d */
1423 &hourslen, &hours, /* B */
1424 &bad_password_count, /* w */
1425 &logon_count, /* w */
1426 &unknown_6); /* d */
1427
1428 if (len == (uint32) -1) {
1429 ret = False;
1430 goto done;
1431 }
1432
1433 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1434 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1435 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1436 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1437 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1438 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1439
1440 pdb_set_username(sampass, username, PDB_SET);
1441 pdb_set_domain(sampass, domain, PDB_SET);
1442 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1443 pdb_set_fullname(sampass, fullname, PDB_SET);
1444
1445 if (homedir) {
1446 pdb_set_homedir(sampass, homedir, PDB_SET);
1447 }
1448 else {
1449 pdb_set_homedir(sampass,
1450 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1451 PDB_DEFAULT);
1452 }
1453
1454 if (dir_drive)
1455 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1456 else {
1457 pdb_set_dir_drive(sampass,
1458 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1459 PDB_DEFAULT);
1460 }
1461
1462 if (logon_script)
1463 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1464 else {
1465 pdb_set_logon_script(sampass,
1466 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1467 PDB_DEFAULT);
1468 }
1469
1470 if (profile_path) {
1471 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1472 } else {
1473 pdb_set_profile_path(sampass,
1474 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1475 PDB_DEFAULT);
1476 }
1477
1478 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1479 pdb_set_workstations(sampass, workstations, PDB_SET);
1480 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1481
1482 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1483 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1484 ret = False;
1485 goto done;
1486 }
1487 }
1488
1489 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1490 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1491 ret = False;
1492 goto done;
1493 }
1494 }
1495
1496 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1497 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1498 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1499 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1500 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1501 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1502 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1503 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1504 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1505 pdb_set_hours(sampass, hours, PDB_SET);
1506
1507 done:
1508
1509 SAFE_FREE(username);
1510 SAFE_FREE(domain);
1511 SAFE_FREE(nt_username);
1512 SAFE_FREE(fullname);
1513 SAFE_FREE(homedir);
1514 SAFE_FREE(dir_drive);
1515 SAFE_FREE(logon_script);
1516 SAFE_FREE(profile_path);
1517 SAFE_FREE(acct_desc);
1518 SAFE_FREE(workstations);
1519 SAFE_FREE(munged_dial);
1520 SAFE_FREE(unknown_str);
1521 SAFE_FREE(lm_pw_ptr);
1522 SAFE_FREE(nt_pw_ptr);
1523 SAFE_FREE(hours);
1524
1525 return ret;
1526 }
1527
1528 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1529 {
1530
1531 /* times are stored as 32bit integer
1532 take care on system with 64bit wide time_t
1533 --SSS */
1534 uint32 logon_time,
1535 logoff_time,
1536 kickoff_time,
1537 bad_password_time,
1538 pass_last_set_time,
1539 pass_can_change_time,
1540 pass_must_change_time;
1541 char *username = NULL;
1542 char *domain = NULL;
1543 char *nt_username = NULL;
1544 char *dir_drive = NULL;
1545 char *unknown_str = NULL;
1546 char *munged_dial = NULL;
1547 char *fullname = NULL;
1548 char *homedir = NULL;
1549 char *logon_script = NULL;
1550 char *profile_path = NULL;
1551 char *acct_desc = NULL;
1552 char *workstations = NULL;
1553 uint32 username_len, domain_len, nt_username_len,
1554 dir_drive_len, unknown_str_len, munged_dial_len,
1555 fullname_len, homedir_len, logon_script_len,
1556 profile_path_len, acct_desc_len, workstations_len;
1557
1558 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1559 uint16 acct_ctrl, logon_divs;
1560 uint16 bad_password_count, logon_count;
1561 uint8 *hours = NULL;
1562 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
1563 uint32 len = 0;
1564 uint32 lm_pw_len, nt_pw_len, hourslen;
1565 BOOL ret = True;
1566
1567 if(sampass == NULL || buf == NULL) {
1568 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1569 return False;
1570 }
1571
1572 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1573
1574 /* unpack the buffer into variables */
1575 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1576 &logon_time, /* d */
1577 &logoff_time, /* d */
1578 &kickoff_time, /* d */
1579 /* Change from V0 is addition of bad_password_time field. */
1580 &bad_password_time, /* d */
1581 &pass_last_set_time, /* d */
1582 &pass_can_change_time, /* d */
1583 &pass_must_change_time, /* d */
1584 &username_len, &username, /* B */
1585 &domain_len, &domain, /* B */
1586 &nt_username_len, &nt_username, /* B */
1587 &fullname_len, &fullname, /* B */
1588 &homedir_len, &homedir, /* B */
1589 &dir_drive_len, &dir_drive, /* B */
1590 &logon_script_len, &logon_script, /* B */
1591 &profile_path_len, &profile_path, /* B */
1592 &acct_desc_len, &acct_desc, /* B */
1593 &workstations_len, &workstations, /* B */
1594 &unknown_str_len, &unknown_str, /* B */
1595 &munged_dial_len, &munged_dial, /* B */
1596 &user_rid, /* d */
1597 &group_rid, /* d */
1598 &lm_pw_len, &lm_pw_ptr, /* B */
1599 &nt_pw_len, &nt_pw_ptr, /* B */
1600 &acct_ctrl, /* w */
1601 &remove_me, /* d */
1602 &logon_divs, /* w */
1603 &hours_len, /* d */
1604 &hourslen, &hours, /* B */
1605 &bad_password_count, /* w */
1606 &logon_count, /* w */
1607 &unknown_6); /* d */
1608
1609 if (len == (uint32) -1) {
1610 ret = False;
1611 goto done;
1612 }
1613
1614 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1615 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1616 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1617
1618 /* Change from V0 is addition of bad_password_time field. */
1619 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1620 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1621 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1622 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1623
1624 pdb_set_username(sampass, username, PDB_SET);
1625 pdb_set_domain(sampass, domain, PDB_SET);
1626 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1627 pdb_set_fullname(sampass, fullname, PDB_SET);
1628
1629 if (homedir) {
1630 pdb_set_homedir(sampass, homedir, PDB_SET);
1631 }
1632 else {
1633 pdb_set_homedir(sampass,
1634 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1635 PDB_DEFAULT);
1636 }
1637
1638 if (dir_drive)
1639 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1640 else {
1641 pdb_set_dir_drive(sampass,
1642 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1643 PDB_DEFAULT);
1644 }
1645
1646 if (logon_script)
1647 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1648 else {
1649 pdb_set_logon_script(sampass,
1650 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1651 PDB_DEFAULT);
1652 }
1653
1654 if (profile_path) {
1655 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1656 } else {
1657 pdb_set_profile_path(sampass,
1658 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1659 PDB_DEFAULT);
1660 }
1661
1662 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1663 pdb_set_workstations(sampass, workstations, PDB_SET);
1664 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1665
1666 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1667 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1668 ret = False;
1669 goto done;
1670 }
1671 }
1672
1673 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1674 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1675 ret = False;
1676 goto done;
1677 }
1678 }
1679
1680 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1681
1682 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1683 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1684 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1685 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1686 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1687 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1688 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1689 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1690 pdb_set_hours(sampass, hours, PDB_SET);
1691
1692 done:
1693
1694 SAFE_FREE(username);
1695 SAFE_FREE(domain);
1696 SAFE_FREE(nt_username);
1697 SAFE_FREE(fullname);
1698 SAFE_FREE(homedir);
1699 SAFE_FREE(dir_drive);
1700 SAFE_FREE(logon_script);
1701 SAFE_FREE(profile_path);
1702 SAFE_FREE(acct_desc);
1703 SAFE_FREE(workstations);
1704 SAFE_FREE(munged_dial);
1705 SAFE_FREE(unknown_str);
1706 SAFE_FREE(lm_pw_ptr);
1707 SAFE_FREE(nt_pw_ptr);
1708 SAFE_FREE(hours);
1709
1710 return ret;
1711 }
1712
1713
1714 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1715 {
1716
1717 /* times are stored as 32bit integer
1718 take care on system with 64bit wide time_t
1719 --SSS */
1720 uint32 logon_time,
1721 logoff_time,
1722 kickoff_time,
1723 bad_password_time,
1724 pass_last_set_time,
1725 pass_can_change_time,
1726 pass_must_change_time;
1727 char *username = NULL;
1728 char *domain = NULL;
1729 char *nt_username = NULL;
1730 char *dir_drive = NULL;
1731 char *unknown_str = NULL;
1732 char *munged_dial = NULL;
1733 char *fullname = NULL;
1734 char *homedir = NULL;
1735 char *logon_script = NULL;
1736 char *profile_path = NULL;
1737 char *acct_desc = NULL;
1738 char *workstations = NULL;
1739 uint32 username_len, domain_len, nt_username_len,
1740 dir_drive_len, unknown_str_len, munged_dial_len,
1741 fullname_len, homedir_len, logon_script_len,
1742 profile_path_len, acct_desc_len, workstations_len;
1743
1744 uint32 user_rid, group_rid, hours_len, unknown_6;
1745 uint16 acct_ctrl, logon_divs;
1746 uint16 bad_password_count, logon_count;
1747 uint8 *hours = NULL;
1748 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
1749 uint32 len = 0;
1750 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1751 uint32 pwHistLen = 0;
1752 BOOL ret = True;
1753 fstring tmpstring;
1754 BOOL expand_explicit = lp_passdb_expand_explicit();
1755
1756 if(sampass == NULL || buf == NULL) {
1757 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1758 return False;
1759 }
1760
1761 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1762
1763 /* unpack the buffer into variables */
1764 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1765 &logon_time, /* d */
1766 &logoff_time, /* d */
1767 &kickoff_time, /* d */
1768 &bad_password_time, /* d */
1769 &pass_last_set_time, /* d */
1770 &pass_can_change_time, /* d */
1771 &pass_must_change_time, /* d */
1772 &username_len, &username, /* B */
1773 &domain_len, &domain, /* B */
1774 &nt_username_len, &nt_username, /* B */
1775 &fullname_len, &fullname, /* B */
1776 &homedir_len, &homedir, /* B */
1777 &dir_drive_len, &dir_drive, /* B */
1778 &logon_script_len, &logon_script, /* B */
1779 &profile_path_len, &profile_path, /* B */
1780 &acct_desc_len, &acct_desc, /* B */
1781 &workstations_len, &workstations, /* B */
1782 &unknown_str_len, &unknown_str, /* B */
1783 &munged_dial_len, &munged_dial, /* B */
1784 &user_rid, /* d */
1785 &group_rid, /* d */
1786 &lm_pw_len, &lm_pw_ptr, /* B */
1787 &nt_pw_len, &nt_pw_ptr, /* B */
1788 /* Change from V1 is addition of password history field. */
1789 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1790 &acct_ctrl, /* w */
1791 /* Also "remove_me" field was removed. */
1792 &logon_divs, /* w */
1793 &hours_len, /* d */
1794 &hourslen, &hours, /* B */
1795 &bad_password_count, /* w */
1796 &logon_count, /* w */
1797 &unknown_6); /* d */
1798
1799 if (len == (uint32) -1) {
1800 ret = False;
1801 goto done;
1802 }
1803
1804 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1805 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1806 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1807 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1808 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1809 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1810 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1811
1812 pdb_set_username(sampass, username, PDB_SET);
1813 pdb_set_domain(sampass, domain, PDB_SET);
1814 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1815 pdb_set_fullname(sampass, fullname, PDB_SET);
1816
1817 if (homedir) {
1818 fstrcpy( tmpstring, homedir );
1819 if (expand_explicit) {
1820 standard_sub_basic( username, tmpstring,
1821 sizeof(tmpstring) );
1822 }
1823 pdb_set_homedir(sampass, tmpstring, PDB_SET);
1824 }
1825 else {
1826 pdb_set_homedir(sampass,
1827 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1828 PDB_DEFAULT);
1829 }
1830
1831 if (dir_drive)
1832 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1833 else
1834 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
1835
1836 if (logon_script) {
1837 fstrcpy( tmpstring, logon_script );
1838 if (expand_explicit) {
1839 standard_sub_basic( username, tmpstring,
1840 sizeof(tmpstring) );
1841 }
1842 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
1843 }
1844 else {
1845 pdb_set_logon_script(sampass,
1846 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1847 PDB_DEFAULT);
1848 }
1849
1850 if (profile_path) {
1851 fstrcpy( tmpstring, profile_path );
1852 if (expand_explicit) {
1853 standard_sub_basic( username, tmpstring,
1854 sizeof(tmpstring) );
1855 }
1856 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
1857 }
1858 else {
1859 pdb_set_profile_path(sampass,
1860 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1861 PDB_DEFAULT);
1862 }
1863
1864 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1865 pdb_set_workstations(sampass, workstations, PDB_SET);
1866 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1867
1868 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1869 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1870 ret = False;
1871 goto done;
1872 }
1873 }
1874
1875 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1876 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1877 ret = False;
1878 goto done;
1879 }
1880 }
1881
1882 /* Change from V1 is addition of password history field. */
1883 pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1884 if (pwHistLen) {
1885 uint8 *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1886 if (!pw_hist) {
1887 ret = False;
1888 goto done;
1889 }
1890 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1891 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1892 int i;
1893 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1894 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1895 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1896 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1897 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1898 PW_HISTORY_ENTRY_LEN);
1899 }
1900 }
1901 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1902 SAFE_FREE(pw_hist);
1903 ret = False;
1904 goto done;
1905 }
1906 SAFE_FREE(pw_hist);
1907 } else {
1908 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1909 }
1910
1911 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1912 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1913 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1914 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1915 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1916 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1917 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1918 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1919 pdb_set_hours(sampass, hours, PDB_SET);
1920
1921 done:
1922
1923 SAFE_FREE(username);
1924 SAFE_FREE(domain);
1925 SAFE_FREE(nt_username);
1926 SAFE_FREE(fullname);
1927 SAFE_FREE(homedir);
1928 SAFE_FREE(dir_drive);
1929 SAFE_FREE(logon_script);
1930 SAFE_FREE(profile_path);
1931 SAFE_FREE(acct_desc);
1932 SAFE_FREE(workstations);
1933 SAFE_FREE(munged_dial);
1934 SAFE_FREE(unknown_str);
1935 SAFE_FREE(lm_pw_ptr);
1936 SAFE_FREE(nt_pw_ptr);
1937 SAFE_FREE(nt_pw_hist_ptr);
1938 SAFE_FREE(hours);
1939
1940 return ret;
1941 }
1942
1943 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1944 {
1945 size_t len, buflen;
1946
1947 /* times are stored as 32bit integer
1948 take care on system with 64bit wide time_t
1949 --SSS */
1950 uint32 logon_time,
1951 logoff_time,
1952 kickoff_time,
1953 bad_password_time,
1954 pass_last_set_time,
1955 pass_can_change_time,
1956 pass_must_change_time;
1957
1958 uint32 user_rid, group_rid;
1959
1960 const char *username;
1961 const char *domain;
1962 const char *nt_username;
1963 const char *dir_drive;
1964 const char *unknown_str;
1965 const char *munged_dial;
1966 const char *fullname;
1967 const char *homedir;
1968 const char *logon_script;
1969 const char *profile_path;
1970 const char *acct_desc;
1971 const char *workstations;
1972 uint32 username_len, domain_len, nt_username_len,
1973 dir_drive_len, unknown_str_len, munged_dial_len,
1974 fullname_len, homedir_len, logon_script_len,
1975 profile_path_len, acct_desc_len, workstations_len;
1976
1977 const uint8 *lm_pw;
1978 const uint8 *nt_pw;
1979 const uint8 *nt_pw_hist;
1980 uint32 lm_pw_len = 16;
1981 uint32 nt_pw_len = 16;
1982 uint32 nt_pw_hist_len;
1983 uint32 pwHistLen = 0;
1984
1985 /* do we have a valid SAM_ACCOUNT pointer? */
1986 if (sampass == NULL) {
1987 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1988 return -1;
1989 }
1990
1991 *buf = NULL;
1992 buflen = 0;
1993
1994 logon_time = (uint32)pdb_get_logon_time(sampass);
1995 logoff_time = (uint32)pdb_get_logoff_time(sampass);
1996 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
1997 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
1998 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
1999 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
2000 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
2001
2002 user_rid = pdb_get_user_rid(sampass);
2003 group_rid = pdb_get_group_rid(sampass);
2004
2005 username = pdb_get_username(sampass);
2006 if (username) {
2007 username_len = strlen(username) +1;
2008 } else {
2009 username_len = 0;
2010 }
2011
2012 domain = pdb_get_domain(sampass);
2013 if (domain) {
2014 domain_len = strlen(domain) +1;
2015 } else {
2016 domain_len = 0;
2017 }
2018
2019 nt_username = pdb_get_nt_username(sampass);
2020 if (nt_username) {
2021 nt_username_len = strlen(nt_username) +1;
2022 } else {
2023 nt_username_len = 0;
2024 }
2025
2026 fullname = pdb_get_fullname(sampass);
2027 if (fullname) {
2028 fullname_len = strlen(fullname) +1;
2029 } else {
2030 fullname_len = 0;
2031 }
2032
2033 /*
2034 * Only updates fields which have been set (not defaults from smb.conf)
2035 */
2036
2037 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2038 dir_drive = pdb_get_dir_drive(sampass);
2039 } else {
2040 dir_drive = NULL;
2041 }
2042 if (dir_drive) {
2043 dir_drive_len = strlen(dir_drive) +1;
2044 } else {
2045 dir_drive_len = 0;
2046 }
2047
2048 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2049 homedir = pdb_get_homedir(sampass);
2050 } else {
2051 homedir = NULL;
2052 }
2053 if (homedir) {
2054 homedir_len = strlen(homedir) +1;
2055 } else {
2056 homedir_len = 0;
2057 }
2058
2059 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2060 logon_script = pdb_get_logon_script(sampass);
2061 } else {
2062 logon_script = NULL;
2063 }
2064 if (logon_script) {
2065 logon_script_len = strlen(logon_script) +1;
2066 } else {
2067 logon_script_len = 0;
2068 }
2069
2070 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2071 profile_path = pdb_get_profile_path(sampass);
2072 } else {
2073 profile_path = NULL;
2074 }
2075 if (profile_path) {
2076 profile_path_len = strlen(profile_path) +1;
2077 } else {
2078 profile_path_len = 0;
2079 }
2080
2081 lm_pw = pdb_get_lanman_passwd(sampass);
2082 if (!lm_pw) {
2083 lm_pw_len = 0;
2084 }
2085
2086 nt_pw = pdb_get_nt_passwd(sampass);
2087 if (!nt_pw) {
2088 nt_pw_len = 0;
2089 }
2090
2091 pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
2092 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
2093 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2094 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2095 } else {
2096 nt_pw_hist_len = 0;
2097 }
2098
2099 acct_desc = pdb_get_acct_desc(sampass);
2100 if (acct_desc) {
2101 acct_desc_len = strlen(acct_desc) +1;
2102 } else {
2103 acct_desc_len = 0;
2104 }
2105
2106 workstations = pdb_get_workstations(sampass);
2107 if (workstations) {
2108 workstations_len = strlen(workstations) +1;
2109 } else {
2110 workstations_len = 0;
2111 }
2112
2113 unknown_str = NULL;
2114 unknown_str_len = 0;
2115
2116 munged_dial = pdb_get_munged_dial(sampass);
2117 if (munged_dial) {
2118 munged_dial_len = strlen(munged_dial) +1;
2119 } else {
2120 munged_dial_len = 0;
2121 }
2122
2123 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2124
2125 /* one time to get the size needed */
2126 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
2127 logon_time, /* d */
2128 logoff_time, /* d */
2129 kickoff_time, /* d */
2130 bad_password_time, /* d */
2131 pass_last_set_time, /* d */
2132 pass_can_change_time, /* d */
2133 pass_must_change_time, /* d */
2134 username_len, username, /* B */
2135 domain_len, domain, /* B */
2136 nt_username_len, nt_username, /* B */
2137 fullname_len, fullname, /* B */
2138 homedir_len, homedir, /* B */
2139 dir_drive_len, dir_drive, /* B */
2140 logon_script_len, logon_script, /* B */
2141 profile_path_len, profile_path, /* B */
2142 acct_desc_len, acct_desc, /* B */
2143 workstations_len, workstations, /* B */
2144 unknown_str_len, unknown_str, /* B */
2145 munged_dial_len, munged_dial, /* B */
2146 user_rid, /* d */
2147 group_rid, /* d */
2148 lm_pw_len, lm_pw, /* B */
2149 nt_pw_len, nt_pw, /* B */
2150 nt_pw_hist_len, nt_pw_hist, /* B */
2151 pdb_get_acct_ctrl(sampass), /* w */
2152 pdb_get_logon_divs(sampass), /* w */
2153 pdb_get_hours_len(sampass), /* d */
2154 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2155 pdb_get_bad_password_count(sampass), /* w */
2156 pdb_get_logon_count(sampass), /* w */
2157 pdb_get_unknown_6(sampass)); /* d */
2158
2159 if (size_only) {
2160 return buflen;
2161 }
2162
2163 /* malloc the space needed */
2164 if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2165 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2166 return (-1);
2167 }
2168
2169 /* now for the real call to tdb_pack() */
2170 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
2171 logon_time, /* d */
2172 logoff_time, /* d */
2173 kickoff_time, /* d */
2174 bad_password_time, /* d */
2175 pass_last_set_time, /* d */
2176 pass_can_change_time, /* d */
2177 pass_must_change_time, /* d */
2178 username_len, username, /* B */
2179 domain_len, domain, /* B */
2180 nt_username_len, nt_username, /* B */
2181 fullname_len, fullname, /* B */
2182 homedir_len, homedir, /* B */
2183 dir_drive_len, dir_drive, /* B */
2184 logon_script_len, logon_script, /* B */
2185 profile_path_len, profile_path, /* B */
2186 acct_desc_len, acct_desc, /* B */
2187 workstations_len, workstations, /* B */
2188 unknown_str_len, unknown_str, /* B */
2189 munged_dial_len, munged_dial, /* B */
2190 user_rid, /* d */
2191 group_rid, /* d */
2192 lm_pw_len, lm_pw, /* B */
2193 nt_pw_len, nt_pw, /* B */
2194 nt_pw_hist_len, nt_pw_hist, /* B */
2195 pdb_get_acct_ctrl(sampass), /* w */
2196 pdb_get_logon_divs(sampass), /* w */
2197 pdb_get_hours_len(sampass), /* d */
2198 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2199 pdb_get_bad_password_count(sampass), /* w */
2200 pdb_get_logon_count(sampass), /* w */
2201 pdb_get_unknown_6(sampass)); /* d */
2202
2203 /* check to make sure we got it correct */
2204 if (buflen != len) {
2205 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2206 (unsigned long)buflen, (unsigned long)len));
2207 /* error */
2208 SAFE_FREE (*buf);
2209 return (-1);
2210 }
2211
2212 return (buflen);
2213 }
2214
2215 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2216 {
2217 BOOL result;
2218 uint8 *buf;
2219 int len;
2220
2221 if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2222 return False;
2223
2224 len = init_buffer_from_sam_v2(&buf, src, False);
2225
2226 if (len == -1)
2227 return False;
2228
2229 result = init_sam_from_buffer_v2(*dst, buf, len);
2230 (*dst)->methods = src->methods;
2231
2232 free(buf);
2233
2234 return result;
2235 }
2236
2237 /**********************************************************************
2238 **********************************************************************/
2239
2240 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2241 {
2242 uid_t u_low, u_high;
2243 gid_t g_low, g_high;
2244
2245 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2246 return False;
2247 }
2248
2249 *low = (u_low < g_low) ? u_low : g_low;
2250 *high = (u_high < g_high) ? u_high : g_high;
2251
2252 return True;
2253 }
2254
2255 /******************************************************************
2256 Get the the non-algorithmic RID range if idmap range are defined
2257 ******************************************************************/
2258
2259 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2260 {
2261 uint32 id_low, id_high;
2262
2263 if (!lp_enable_rid_algorithm()) {
2264 *low = BASE_RID;
2265 *high = (uint32)-1;
2266 }
2267
2268 if (!get_free_ugid_range(&id_low, &id_high)) {
2269 return False;
2270 }
2271
2272 *low = algorithmic_pdb_uid_to_user_rid(id_low);
2273 if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2274 *high = (uint32)-1;
2275 } else {
2276 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2277 }
2278
2279 return True;
2280 }
2281
2282 /*********************************************************************
2283 Update the bad password count checking the AP_RESET_COUNT_TIME
2284 *********************************************************************/
2285
2286 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2287 {
2288 time_t LastBadPassword;
2289 uint16 BadPasswordCount;
2290 uint32 resettime;
2291
2292 if (!sampass) return False;
2293
2294 BadPasswordCount = pdb_get_bad_password_count(sampass);
2295 if (!BadPasswordCount) {
2296 DEBUG(9, ("No bad password attempts.\n"));
2297 return True;
2298 }
2299
2300 if (!pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime)) {
2301 DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
2302 return False;
2303 }
2304
2305 /* First, check if there is a reset time to compare */
2306 if ((resettime == (uint32) -1) || (resettime == 0)) {
2307 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2308 return True;
2309 }
2310
2311 LastBadPassword = pdb_get_bad_password_time(sampass);
2312 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2313 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2314 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2315 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2316 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2317 if (updated) {
2318 *updated = True;
2319 }
2320 }
2321
2322 return True;
2323 }
2324
2325 /*********************************************************************
2326 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2327 *********************************************************************/
2328
2329 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2330 {
2331 uint32 duration;
2332 time_t LastBadPassword;
2333
2334 if (!sampass) return False;
2335
2336 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2337 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2338 pdb_get_username(sampass)));
2339 return True;
2340 }
2341
2342 if (!pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2343 DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
2344 return False;
2345 }
2346
2347 /* First, check if there is a duration to compare */
2348 if ((duration == (uint32) -1) || (duration == 0)) {
2349 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2350 return True;
2351 }
2352
2353 LastBadPassword = pdb_get_bad_password_time(sampass);
2354 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2355 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2356
2357 if (LastBadPassword == (time_t)0) {
2358 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2359 bad password time. Leaving locked out.\n",
2360 pdb_get_username(sampass) ));
2361 return True;
2362 }
2363
2364 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2365 pdb_set_acct_ctrl(sampass,
2366 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2367 PDB_CHANGED);
2368 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2369 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2370 if (updated) {
2371 *updated = True;
2372 }
2373 }
2374
2375 return True;
2376 }
2377
2378 /*********************************************************************
2379 Increment the bad_password_count
2380 *********************************************************************/
2381
2382 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2383 {
2384 uint32 account_policy_lockout;
2385 BOOL autolock_updated = False, badpw_updated = False;
2386
2387 if (!sampass)
2388 return False;
2389
2390 /* Retrieve the account lockout policy */
2391 if (!pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT,
2392 &account_policy_lockout)) {
2393 DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
2394 return False;
2395 }
2396
2397 /* If there is no policy, we don't need to continue checking */
2398 if (!account_policy_lockout) {
2399 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2400 return True;
2401 }
2402
2403 /* Check if the autolock needs to be cleared */
2404 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2405 return False;
2406
2407 /* Check if the badpw count needs to be reset */
2408 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2409 return False;
2410
2411 /*
2412 Ok, now we can assume that any resetting that needs to be
2413 done has been done, and just get on with incrementing
2414 and autolocking if necessary
2415 */
2416
2417 pdb_set_bad_password_count(sampass,
2418 pdb_get_bad_password_count(sampass)+1,
2419 PDB_CHANGED);
2420 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2421
2422
2423 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2424 return True;
2425
2426 if (!pdb_set_acct_ctrl(sampass,
2427 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2428 PDB_CHANGED)) {
2429 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2430 return False;
2431 }
2432
2433 return True;
2434 }
Samba GIT mirror