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r4088: Get medieval on our ass about malloc.... :-). Take control of all our allocation
[Samba/bb.git] / source / passdb / passdb.c
blobaeea4316f381b0d942282f639fc8bb12bdd8b55d
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 if (rid == DOMAIN_USER_RID_ADMIN) {
763 const char **admin_list = lp_admin_users(-1);
764 *psid_name_use = SID_NAME_USER;
765 if (admin_list) {
766 const char *p = *admin_list;
767 if(!next_token(&p, name, NULL, sizeof(fstring)))
768 fstrcpy(name, "Administrator");
769 } else {
770 fstrcpy(name, "Administrator");
771 }
772 return True;
773 }
774
775 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
776 return False;
777 }
778
779 /* see if the passdb can help us with the name of the user */
780
781 /* BEING ROOT BLLOCK */
782 become_root();
783 if (pdb_getsampwsid(sam_account, sid)) {
784 unbecome_root(); /* -----> EXIT BECOME_ROOT() */
785 fstrcpy(name, pdb_get_username(sam_account));
786 *psid_name_use = SID_NAME_USER;
787
788 pdb_free_sam(&sam_account);
789
790 return True;
791 }
792 pdb_free_sam(&sam_account);
793
794 ret = pdb_getgrsid(&map, *sid);
795 unbecome_root();
796 /* END BECOME_ROOT BLOCK */
797
798 if ( ret ) {
799 if (map.gid!=(gid_t)-1) {
800 DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
801 } else {
802 DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid. Returning name.\n", map.nt_name));
803 }
804
805 fstrcpy(name, map.nt_name);
806 *psid_name_use = map.sid_name_use;
807 return True;
808 }
809
810 if (algorithmic_pdb_rid_is_user(rid)) {
811 uid_t uid;
812 struct passwd *pw = NULL;
813
814 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
815
816 uid = algorithmic_pdb_user_rid_to_uid(rid);
817 pw = sys_getpwuid( uid );
818
819 DEBUG(5,("local_lookup_sid: looking up uid %u %s\n", (unsigned int)uid,
820 pw ? "succeeded" : "failed" ));
821
822 if ( !pw )
823 fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
824 else
825 fstrcpy( name, pw->pw_name );
826
827 DEBUG(5,("local_lookup_sid: found user %s for rid %u\n", name,
828 (unsigned int)rid ));
829
830 *psid_name_use = SID_NAME_USER;
831
832 return ( pw != NULL );
833 } else {
834 gid_t gid;
835 struct group *gr;
836
837 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
838
839 gid = pdb_group_rid_to_gid(rid);
840 gr = getgrgid(gid);
841
842 *psid_name_use = SID_NAME_ALIAS;
843
844 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
845 gr ? "succeeded" : "failed" ));
846
847 if( !gr )
848 fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
849 else
850 fstrcpy( name, gr->gr_name);
851
852 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
853 (unsigned int)rid ));
854
855 /* assume algorithmic groups are domain global groups */
856
857 *psid_name_use = SID_NAME_DOM_GRP;
858
859 return ( gr != NULL );
860 }
861 }
862
863 /*******************************************************************
864 Convert a name into a SID. Used in the lookup name rpc.
865 ********************************************************************/
866
867 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
868 {
869 DOM_SID local_sid;
870 DOM_SID sid;
871 fstring user;
872 SAM_ACCOUNT *sam_account = NULL;
873 struct group *grp;
874 GROUP_MAP map;
875
876 *psid_name_use = SID_NAME_UNKNOWN;
877
878 /*
879 * user may be quoted a const string, and map_username and
880 * friends can modify it. Make a modifiable copy. JRA.
881 */
882
883 fstrcpy(user, c_user);
884
885 sid_copy(&local_sid, get_global_sam_sid());
886
887 if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
888 fstring sid_str;
889 sid_copy( psid, &sid);
890 sid_to_string(sid_str, &sid);
891 DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
892 (unsigned int)*psid_name_use ));
893 return True;
894 }
895
896 (void)map_username(user);
897
898 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
899 return False;
900 }
901
902 /* BEGIN ROOT BLOCK */
903
904 become_root();
905 if (pdb_getsampwnam(sam_account, user)) {
906 unbecome_root();
907 sid_copy(psid, pdb_get_user_sid(sam_account));
908 *psid_name_use = SID_NAME_USER;
909
910 pdb_free_sam(&sam_account);
911 return True;
912 }
913
914 pdb_free_sam(&sam_account);
915
916 /*
917 * Maybe it was a group ?
918 */
919
920 /* check if it's a mapped group */
921 if (pdb_getgrnam(&map, user)) {
922 /* yes it's a mapped group */
923 sid_copy(&local_sid, &map.sid);
924 *psid_name_use = map.sid_name_use;
925 } else {
926 /* it's not a mapped group */
927 grp = getgrnam(user);
928 if(!grp) {
929 unbecome_root(); /* ---> exit form block */
930 return False;
931 }
932
933 /*
934 *check if it's mapped, if it is reply it doesn't exist
935 *
936 * that's to prevent this case:
937 *
938 * unix group ug is mapped to nt group ng
939 * someone does a lookup on ug
940 * we must not reply as it doesn't "exist" anymore
941 * for NT. For NT only ng exists.
942 * JFM, 30/11/2001
943 */
944
945 if (pdb_getgrgid(&map, grp->gr_gid)){
946 unbecome_root(); /* ---> exit form block */
947 return False;
948 }
949
950 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
951 *psid_name_use = SID_NAME_ALIAS;
952 }
953 unbecome_root();
954 /* END ROOT BLOCK */
955
956 sid_copy( psid, &local_sid);
957
958 return True;
959 }
960
961 /*************************************************************
962 Change a password entry in the local smbpasswd file.
963 *************************************************************/
964
965 BOOL local_password_change(const char *user_name, int local_flags,
966 const char *new_passwd,
967 char *err_str, size_t err_str_len,
968 char *msg_str, size_t msg_str_len)
969 {
970 SAM_ACCOUNT *sam_pass=NULL;
971 uint16 other_acb;
972
973 *err_str = '\0';
974 *msg_str = '\0';
975
976 /* Get the smb passwd entry for this user */
977 pdb_init_sam(&sam_pass);
978
979 become_root();
980 if(!pdb_getsampwnam(sam_pass, user_name)) {
981 unbecome_root();
982 pdb_free_sam(&sam_pass);
983
984 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
985 /* Might not exist in /etc/passwd. Use rid algorithm here */
986 if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
987 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);
988 return False;
989 }
990 } else {
991 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
992 return False;
993 }
994 } else {
995 unbecome_root();
996 /* the entry already existed */
997 local_flags &= ~LOCAL_ADD_USER;
998 }
999
1000 /* the 'other' acb bits not being changed here */
1001 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
1002 if (local_flags & LOCAL_TRUST_ACCOUNT) {
1003 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
1004 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
1005 pdb_free_sam(&sam_pass);
1006 return False;
1007 }
1008 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
1009 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
1010 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
1011 pdb_free_sam(&sam_pass);
1012 return False;
1013 }
1014 } else {
1015 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1016 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1017 pdb_free_sam(&sam_pass);
1018 return False;
1019 }
1020 }
1021
1022 /*
1023 * We are root - just write the new password
1024 * and the valid last change time.
1025 */
1026
1027 if (local_flags & LOCAL_DISABLE_USER) {
1028 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1029 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1030 pdb_free_sam(&sam_pass);
1031 return False;
1032 }
1033 } else if (local_flags & LOCAL_ENABLE_USER) {
1034 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1035 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1036 pdb_free_sam(&sam_pass);
1037 return False;
1038 }
1039 }
1040
1041 if (local_flags & LOCAL_SET_NO_PASSWORD) {
1042 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1043 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1044 pdb_free_sam(&sam_pass);
1045 return False;
1046 }
1047 } else if (local_flags & LOCAL_SET_PASSWORD) {
1048 /*
1049 * If we're dealing with setting a completely empty user account
1050 * ie. One with a password of 'XXXX', but not set disabled (like
1051 * an account created from scratch) then if the old password was
1052 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1053 * We remove that as we're giving this user their first password
1054 * and the decision hasn't really been made to disable them (ie.
1055 * don't create them disabled). JRA.
1056 */
1057 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1058 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1059 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1060 pdb_free_sam(&sam_pass);
1061 return False;
1062 }
1063 }
1064 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1065 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1066 pdb_free_sam(&sam_pass);
1067 return False;
1068 }
1069
1070 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1071 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1072 pdb_free_sam(&sam_pass);
1073 return False;
1074 }
1075 }
1076
1077 if (local_flags & LOCAL_ADD_USER) {
1078 if (pdb_add_sam_account(sam_pass)) {
1079 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1080 pdb_free_sam(&sam_pass);
1081 return True;
1082 } else {
1083 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1084 pdb_free_sam(&sam_pass);
1085 return False;
1086 }
1087 } else if (local_flags & LOCAL_DELETE_USER) {
1088 if (!pdb_delete_sam_account(sam_pass)) {
1089 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1090 pdb_free_sam(&sam_pass);
1091 return False;
1092 }
1093 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1094 } else {
1095 if(!pdb_update_sam_account(sam_pass)) {
1096 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1097 pdb_free_sam(&sam_pass);
1098 return False;
1099 }
1100 if(local_flags & LOCAL_DISABLE_USER)
1101 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1102 else if (local_flags & LOCAL_ENABLE_USER)
1103 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1104 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1105 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1106 }
1107
1108 pdb_free_sam(&sam_pass);
1109 return True;
1110 }
1111
1112 /****************************************************************************
1113 Convert a uid to SID - algorithmic.
1114 ****************************************************************************/
1115
1116 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1117 {
1118 if ( !lp_enable_rid_algorithm() )
1119 return NULL;
1120
1121 DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1122 sid_copy( psid, get_global_sam_sid() );
1123 sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
1124 DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
1125 (unsigned int)uid, sid_string_static(psid) ));
1126
1127 return psid;
1128 }
1129
1130 /****************************************************************************
1131 Convert a uid to SID - locally.
1132 ****************************************************************************/
1133
1134 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1135 {
1136 SAM_ACCOUNT *sampw = NULL;
1137 struct passwd *unix_pw;
1138 BOOL ret;
1139
1140 unix_pw = sys_getpwuid( uid );
1141
1142 if ( !unix_pw ) {
1143 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1144 return algorithmic_uid_to_sid( psid, uid);
1145 }
1146
1147 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1148 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1149 return NULL;
1150 }
1151
1152 become_root();
1153 ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1154 unbecome_root();
1155
1156 if ( ret )
1157 sid_copy( psid, pdb_get_user_sid(sampw) );
1158 else {
1159 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1160 unix_pw->pw_name, (unsigned long)uid));
1161
1162 return algorithmic_uid_to_sid( psid, uid);
1163 }
1164
1165 DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
1166 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1167
1168 return psid;
1169 }
1170
1171 /****************************************************************************
1172 Convert a SID to uid - locally.
1173 ****************************************************************************/
1174
1175 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1176 {
1177 SAM_ACCOUNT *sampw = NULL;
1178 struct passwd *unix_pw;
1179 const char *user_name;
1180
1181 *name_type = SID_NAME_UNKNOWN;
1182
1183 /*
1184 * We can only convert to a uid if this is our local
1185 * Domain SID (ie. we are the controling authority).
1186 */
1187 if (!sid_check_is_in_our_domain(psid) ) {
1188 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1189 return False;
1190 }
1191
1192 /* lookup the user account */
1193
1194 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1195 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1196 return False;
1197 }
1198
1199 become_root();
1200 if ( !pdb_getsampwsid(sampw, psid) ) {
1201 unbecome_root();
1202 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1203 sid_string_static(psid)));
1204 return False;
1205 }
1206 unbecome_root();
1207
1208 user_name = pdb_get_username(sampw);
1209
1210 unix_pw = sys_getpwnam( user_name );
1211
1212 if ( !unix_pw ) {
1213 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1214 user_name));
1215 pdb_free_sam( &sampw );
1216 return False;
1217 }
1218
1219 *puid = unix_pw->pw_uid;
1220
1221 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1222 (unsigned int)*puid, user_name ));
1223
1224 *name_type = SID_NAME_USER;
1225
1226 return True;
1227 }
1228
1229 /****************************************************************************
1230 Convert a gid to SID - algorithmic.
1231 ****************************************************************************/
1232
1233 DOM_SID *algorithmic_gid_to_sid(DOM_SID *psid, uid_t gid)
1234 {
1235 if ( !lp_enable_rid_algorithm() )
1236 return NULL;
1237
1238 DEBUG(8,("algorithmic_gid_to_sid: falling back to RID algorithm\n"));
1239 sid_copy( psid, get_global_sam_sid() );
1240 sid_append_rid( psid, pdb_gid_to_group_rid(gid) );
1241 DEBUG(10,("algorithmic_gid_to_sid: gid (%d) -> SID %s.\n",
1242 (unsigned int)gid, sid_string_static(psid) ));
1243
1244 return psid;
1245 }
1246
1247 /****************************************************************************
1248 Convert a gid to SID - locally.
1249 ****************************************************************************/
1250
1251 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1252 {
1253 GROUP_MAP group;
1254 BOOL ret;
1255
1256 /* we don't need to disable winbindd since the gid is stored in
1257 the GROUP_MAP object */
1258
1259 /* done as root since ldap backend requires root to open a connection */
1260
1261 become_root();
1262 ret = pdb_getgrgid( &group, gid );
1263 unbecome_root();
1264
1265 if ( !ret ) {
1266
1267 /* algorithmic to rid mapping if enabled */
1268
1269 if ( lp_enable_rid_algorithm() ) {
1270
1271 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1272 (unsigned int)gid, sid_string_static(psid)));
1273
1274 return algorithmic_gid_to_sid(psid, gid);
1275 }
1276 else
1277 return NULL;
1278 }
1279
1280 sid_copy( psid, &group.sid );
1281
1282 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1283 (unsigned int)gid, sid_string_static(psid)));
1284
1285 return psid;
1286 }
1287
1288 /****************************************************************************
1289 Convert a SID to gid - locally.
1290 ****************************************************************************/
1291
1292 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1293 {
1294 uint32 rid;
1295 GROUP_MAP group;
1296 BOOL ret;
1297
1298 *name_type = SID_NAME_UNKNOWN;
1299
1300 /* This call can enumerate group mappings for foreign sids as well.
1301 So don't check for a match against our domain SID */
1302
1303 /* we don't need to disable winbindd since the gid is stored in
1304 the GROUP_MAP object */
1305
1306 become_root();
1307 ret = pdb_getgrsid(&group, *psid);
1308 unbecome_root();
1309
1310 if ( !ret ) {
1311
1312 /* Fallback to algorithmic rid mapping if enabled */
1313
1314 if ( lp_enable_rid_algorithm() ) {
1315
1316 if (!sid_check_is_in_our_domain(psid) ) {
1317 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1318 return False;
1319 }
1320
1321 if (!sid_peek_rid(psid, &rid)) {
1322 DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
1323 return False;
1324 }
1325
1326 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1327
1328 if (algorithmic_pdb_rid_is_user(rid)) {
1329 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1330 return False;
1331 } else {
1332 *pgid = pdb_group_rid_to_gid(rid);
1333 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1334 return True;
1335 }
1336 }
1337
1338 return False;
1339 }
1340
1341 *pgid = group.gid;
1342 *name_type = group.sid_name_use;
1343
1344 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1345 (unsigned int)*pgid));
1346
1347 return True;
1348 }
1349
1350 /**********************************************************************
1351 Marshall/unmarshall SAM_ACCOUNT structs.
1352 *********************************************************************/
1353
1354 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1355 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1356 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
1357
1358 /**********************************************************************
1359 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1360 *********************************************************************/
1361
1362 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1363 {
1364 return(init_sam_from_buffer_v2(sampass, buf, buflen));
1365 }
1366
1367 /**********************************************************************
1368 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1369 *********************************************************************/
1370
1371 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1372 {
1373 return(init_buffer_from_sam_v2(buf, sampass, size_only));
1374 }
1375
1376
1377 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1378 {
1379
1380 /* times are stored as 32bit integer
1381 take care on system with 64bit wide time_t
1382 --SSS */
1383 uint32 logon_time,
1384 logoff_time,
1385 kickoff_time,
1386 pass_last_set_time,
1387 pass_can_change_time,
1388 pass_must_change_time;
1389 char *username;
1390 char *domain;
1391 char *nt_username;
1392 char *dir_drive;
1393 char *unknown_str;
1394 char *munged_dial;
1395 char *fullname;
1396 char *homedir;
1397 char *logon_script;
1398 char *profile_path;
1399 char *acct_desc;
1400 char *workstations;
1401 uint32 username_len, domain_len, nt_username_len,
1402 dir_drive_len, unknown_str_len, munged_dial_len,
1403 fullname_len, homedir_len, logon_script_len,
1404 profile_path_len, acct_desc_len, workstations_len;
1405
1406 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1407 uint16 acct_ctrl, logon_divs;
1408 uint16 bad_password_count, logon_count;
1409 uint8 *hours;
1410 uint8 *lm_pw_ptr, *nt_pw_ptr;
1411 uint32 len = 0;
1412 uint32 lm_pw_len, nt_pw_len, hourslen;
1413 BOOL ret = True;
1414
1415 if(sampass == NULL || buf == NULL) {
1416 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
1417 return False;
1418 }
1419
1420 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1421
1422 /* unpack the buffer into variables */
1423 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1424 &logon_time, /* d */
1425 &logoff_time, /* d */
1426 &kickoff_time, /* d */
1427 &pass_last_set_time, /* d */
1428 &pass_can_change_time, /* d */
1429 &pass_must_change_time, /* d */
1430 &username_len, &username, /* B */
1431 &domain_len, &domain, /* B */
1432 &nt_username_len, &nt_username, /* B */
1433 &fullname_len, &fullname, /* B */
1434 &homedir_len, &homedir, /* B */
1435 &dir_drive_len, &dir_drive, /* B */
1436 &logon_script_len, &logon_script, /* B */
1437 &profile_path_len, &profile_path, /* B */
1438 &acct_desc_len, &acct_desc, /* B */
1439 &workstations_len, &workstations, /* B */
1440 &unknown_str_len, &unknown_str, /* B */
1441 &munged_dial_len, &munged_dial, /* B */
1442 &user_rid, /* d */
1443 &group_rid, /* d */
1444 &lm_pw_len, &lm_pw_ptr, /* B */
1445 &nt_pw_len, &nt_pw_ptr, /* B */
1446 &acct_ctrl, /* w */
1447 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
1448 &logon_divs, /* w */
1449 &hours_len, /* d */
1450 &hourslen, &hours, /* B */
1451 &bad_password_count, /* w */
1452 &logon_count, /* w */
1453 &unknown_6); /* d */
1454
1455 if (len == (uint32) -1) {
1456 ret = False;
1457 goto done;
1458 }
1459
1460 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1461 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1462 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1463 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1464 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1465 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1466
1467 pdb_set_username(sampass, username, PDB_SET);
1468 pdb_set_domain(sampass, domain, PDB_SET);
1469 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1470 pdb_set_fullname(sampass, fullname, PDB_SET);
1471
1472 if (homedir) {
1473 pdb_set_homedir(sampass, homedir, PDB_SET);
1474 }
1475 else {
1476 pdb_set_homedir(sampass,
1477 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1478 PDB_DEFAULT);
1479 }
1480
1481 if (dir_drive)
1482 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1483 else {
1484 pdb_set_dir_drive(sampass,
1485 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1486 PDB_DEFAULT);
1487 }
1488
1489 if (logon_script)
1490 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1491 else {
1492 pdb_set_logon_script(sampass,
1493 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1494 PDB_DEFAULT);
1495 }
1496
1497 if (profile_path) {
1498 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1499 } else {
1500 pdb_set_profile_path(sampass,
1501 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1502 PDB_DEFAULT);
1503 }
1504
1505 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1506 pdb_set_workstations(sampass, workstations, PDB_SET);
1507 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1508
1509 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1510 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1511 ret = False;
1512 goto done;
1513 }
1514 }
1515
1516 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1517 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1518 ret = False;
1519 goto done;
1520 }
1521 }
1522
1523 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1524 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1525 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1526 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1527 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1528 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1529 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1530 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1531 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1532 pdb_set_hours(sampass, hours, PDB_SET);
1533
1534 done:
1535
1536 SAFE_FREE(username);
1537 SAFE_FREE(domain);
1538 SAFE_FREE(nt_username);
1539 SAFE_FREE(fullname);
1540 SAFE_FREE(homedir);
1541 SAFE_FREE(dir_drive);
1542 SAFE_FREE(logon_script);
1543 SAFE_FREE(profile_path);
1544 SAFE_FREE(acct_desc);
1545 SAFE_FREE(workstations);
1546 SAFE_FREE(munged_dial);
1547 SAFE_FREE(unknown_str);
1548 SAFE_FREE(lm_pw_ptr);
1549 SAFE_FREE(nt_pw_ptr);
1550 SAFE_FREE(hours);
1551
1552 return ret;
1553 }
1554
1555 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1556 {
1557
1558 /* times are stored as 32bit integer
1559 take care on system with 64bit wide time_t
1560 --SSS */
1561 uint32 logon_time,
1562 logoff_time,
1563 kickoff_time,
1564 bad_password_time,
1565 pass_last_set_time,
1566 pass_can_change_time,
1567 pass_must_change_time;
1568 char *username;
1569 char *domain;
1570 char *nt_username;
1571 char *dir_drive;
1572 char *unknown_str;
1573 char *munged_dial;
1574 char *fullname;
1575 char *homedir;
1576 char *logon_script;
1577 char *profile_path;
1578 char *acct_desc;
1579 char *workstations;
1580 uint32 username_len, domain_len, nt_username_len,
1581 dir_drive_len, unknown_str_len, munged_dial_len,
1582 fullname_len, homedir_len, logon_script_len,
1583 profile_path_len, acct_desc_len, workstations_len;
1584
1585 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1586 uint16 acct_ctrl, logon_divs;
1587 uint16 bad_password_count, logon_count;
1588 uint8 *hours;
1589 uint8 *lm_pw_ptr, *nt_pw_ptr;
1590 uint32 len = 0;
1591 uint32 lm_pw_len, nt_pw_len, hourslen;
1592 BOOL ret = True;
1593
1594 if(sampass == NULL || buf == NULL) {
1595 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
1596 return False;
1597 }
1598
1599 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
1600
1601 /* unpack the buffer into variables */
1602 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1603 &logon_time, /* d */
1604 &logoff_time, /* d */
1605 &kickoff_time, /* d */
1606 /* Change from V0 is addition of bad_password_time field. */
1607 &bad_password_time, /* d */
1608 &pass_last_set_time, /* d */
1609 &pass_can_change_time, /* d */
1610 &pass_must_change_time, /* d */
1611 &username_len, &username, /* B */
1612 &domain_len, &domain, /* B */
1613 &nt_username_len, &nt_username, /* B */
1614 &fullname_len, &fullname, /* B */
1615 &homedir_len, &homedir, /* B */
1616 &dir_drive_len, &dir_drive, /* B */
1617 &logon_script_len, &logon_script, /* B */
1618 &profile_path_len, &profile_path, /* B */
1619 &acct_desc_len, &acct_desc, /* B */
1620 &workstations_len, &workstations, /* B */
1621 &unknown_str_len, &unknown_str, /* B */
1622 &munged_dial_len, &munged_dial, /* B */
1623 &user_rid, /* d */
1624 &group_rid, /* d */
1625 &lm_pw_len, &lm_pw_ptr, /* B */
1626 &nt_pw_len, &nt_pw_ptr, /* B */
1627 &acct_ctrl, /* w */
1628 &remove_me, /* d */
1629 &logon_divs, /* w */
1630 &hours_len, /* d */
1631 &hourslen, &hours, /* B */
1632 &bad_password_count, /* w */
1633 &logon_count, /* w */
1634 &unknown_6); /* d */
1635
1636 if (len == (uint32) -1) {
1637 ret = False;
1638 goto done;
1639 }
1640
1641 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1642 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1643 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1644
1645 /* Change from V0 is addition of bad_password_time field. */
1646 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1647 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1648 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1649 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1650
1651 pdb_set_username(sampass, username, PDB_SET);
1652 pdb_set_domain(sampass, domain, PDB_SET);
1653 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1654 pdb_set_fullname(sampass, fullname, PDB_SET);
1655
1656 if (homedir) {
1657 pdb_set_homedir(sampass, homedir, PDB_SET);
1658 }
1659 else {
1660 pdb_set_homedir(sampass,
1661 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1662 PDB_DEFAULT);
1663 }
1664
1665 if (dir_drive)
1666 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1667 else {
1668 pdb_set_dir_drive(sampass,
1669 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1670 PDB_DEFAULT);
1671 }
1672
1673 if (logon_script)
1674 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1675 else {
1676 pdb_set_logon_script(sampass,
1677 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1678 PDB_DEFAULT);
1679 }
1680
1681 if (profile_path) {
1682 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1683 } else {
1684 pdb_set_profile_path(sampass,
1685 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1686 PDB_DEFAULT);
1687 }
1688
1689 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1690 pdb_set_workstations(sampass, workstations, PDB_SET);
1691 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1692
1693 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1694 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1695 ret = False;
1696 goto done;
1697 }
1698 }
1699
1700 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1701 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1702 ret = False;
1703 goto done;
1704 }
1705 }
1706
1707 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1708
1709 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1710 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1711 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1712 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1713 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1714 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1715 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1716 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1717 pdb_set_hours(sampass, hours, PDB_SET);
1718
1719 done:
1720
1721 SAFE_FREE(username);
1722 SAFE_FREE(domain);
1723 SAFE_FREE(nt_username);
1724 SAFE_FREE(fullname);
1725 SAFE_FREE(homedir);
1726 SAFE_FREE(dir_drive);
1727 SAFE_FREE(logon_script);
1728 SAFE_FREE(profile_path);
1729 SAFE_FREE(acct_desc);
1730 SAFE_FREE(workstations);
1731 SAFE_FREE(munged_dial);
1732 SAFE_FREE(unknown_str);
1733 SAFE_FREE(lm_pw_ptr);
1734 SAFE_FREE(nt_pw_ptr);
1735 SAFE_FREE(hours);
1736
1737 return ret;
1738 }
1739
1740
1741 BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1742 {
1743
1744 /* times are stored as 32bit integer
1745 take care on system with 64bit wide time_t
1746 --SSS */
1747 uint32 logon_time,
1748 logoff_time,
1749 kickoff_time,
1750 bad_password_time,
1751 pass_last_set_time,
1752 pass_can_change_time,
1753 pass_must_change_time;
1754 char *username;
1755 char *domain;
1756 char *nt_username;
1757 char *dir_drive;
1758 char *unknown_str;
1759 char *munged_dial;
1760 char *fullname;
1761 char *homedir;
1762 char *logon_script;
1763 char *profile_path;
1764 char *acct_desc;
1765 char *workstations;
1766 uint32 username_len, domain_len, nt_username_len,
1767 dir_drive_len, unknown_str_len, munged_dial_len,
1768 fullname_len, homedir_len, logon_script_len,
1769 profile_path_len, acct_desc_len, workstations_len;
1770
1771 uint32 user_rid, group_rid, hours_len, unknown_6;
1772 uint16 acct_ctrl, logon_divs;
1773 uint16 bad_password_count, logon_count;
1774 uint8 *hours;
1775 uint8 *lm_pw_ptr, *nt_pw_ptr, *nt_pw_hist_ptr;
1776 uint32 len = 0;
1777 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
1778 uint32 pwHistLen = 0;
1779 BOOL ret = True;
1780
1781 if(sampass == NULL || buf == NULL) {
1782 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
1783 return False;
1784 }
1785
1786 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
1787
1788 /* unpack the buffer into variables */
1789 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
1790 &logon_time, /* d */
1791 &logoff_time, /* d */
1792 &kickoff_time, /* d */
1793 &bad_password_time, /* d */
1794 &pass_last_set_time, /* d */
1795 &pass_can_change_time, /* d */
1796 &pass_must_change_time, /* d */
1797 &username_len, &username, /* B */
1798 &domain_len, &domain, /* B */
1799 &nt_username_len, &nt_username, /* B */
1800 &fullname_len, &fullname, /* B */
1801 &homedir_len, &homedir, /* B */
1802 &dir_drive_len, &dir_drive, /* B */
1803 &logon_script_len, &logon_script, /* B */
1804 &profile_path_len, &profile_path, /* B */
1805 &acct_desc_len, &acct_desc, /* B */
1806 &workstations_len, &workstations, /* B */
1807 &unknown_str_len, &unknown_str, /* B */
1808 &munged_dial_len, &munged_dial, /* B */
1809 &user_rid, /* d */
1810 &group_rid, /* d */
1811 &lm_pw_len, &lm_pw_ptr, /* B */
1812 &nt_pw_len, &nt_pw_ptr, /* B */
1813 /* Change from V1 is addition of password history field. */
1814 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
1815 &acct_ctrl, /* w */
1816 /* Also "remove_me" field was removed. */
1817 &logon_divs, /* w */
1818 &hours_len, /* d */
1819 &hourslen, &hours, /* B */
1820 &bad_password_count, /* w */
1821 &logon_count, /* w */
1822 &unknown_6); /* d */
1823
1824 if (len == (uint32) -1) {
1825 ret = False;
1826 goto done;
1827 }
1828
1829 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1830 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1831 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1832 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1833 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1834 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1835 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1836
1837 pdb_set_username(sampass, username, PDB_SET);
1838 pdb_set_domain(sampass, domain, PDB_SET);
1839 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1840 pdb_set_fullname(sampass, fullname, PDB_SET);
1841
1842 if (homedir) {
1843 pdb_set_homedir(sampass, homedir, PDB_SET);
1844 }
1845 else {
1846 pdb_set_homedir(sampass,
1847 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1848 PDB_DEFAULT);
1849 }
1850
1851 if (dir_drive)
1852 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1853 else {
1854 pdb_set_dir_drive(sampass,
1855 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1856 PDB_DEFAULT);
1857 }
1858
1859 if (logon_script)
1860 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1861 else {
1862 pdb_set_logon_script(sampass,
1863 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1864 PDB_DEFAULT);
1865 }
1866
1867 if (profile_path) {
1868 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1869 } else {
1870 pdb_set_profile_path(sampass,
1871 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1872 PDB_DEFAULT);
1873 }
1874
1875 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1876 pdb_set_workstations(sampass, workstations, PDB_SET);
1877 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1878
1879 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1880 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1881 ret = False;
1882 goto done;
1883 }
1884 }
1885
1886 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1887 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1888 ret = False;
1889 goto done;
1890 }
1891 }
1892
1893 /* Change from V1 is addition of password history field. */
1894 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
1895 if (pwHistLen) {
1896 char *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
1897 if (!pw_hist) {
1898 ret = False;
1899 goto done;
1900 }
1901 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1902 if (nt_pw_hist_ptr && nt_pw_hist_len) {
1903 int i;
1904 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1905 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1906 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1907 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1908 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1909 PW_HISTORY_ENTRY_LEN);
1910 }
1911 }
1912 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1913 SAFE_FREE(pw_hist);
1914 ret = False;
1915 goto done;
1916 }
1917 SAFE_FREE(pw_hist);
1918 } else {
1919 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1920 }
1921
1922 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1923 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1924 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1925 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1926 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1927 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1928 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1929 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1930 pdb_set_hours(sampass, hours, PDB_SET);
1931
1932 done:
1933
1934 SAFE_FREE(username);
1935 SAFE_FREE(domain);
1936 SAFE_FREE(nt_username);
1937 SAFE_FREE(fullname);
1938 SAFE_FREE(homedir);
1939 SAFE_FREE(dir_drive);
1940 SAFE_FREE(logon_script);
1941 SAFE_FREE(profile_path);
1942 SAFE_FREE(acct_desc);
1943 SAFE_FREE(workstations);
1944 SAFE_FREE(munged_dial);
1945 SAFE_FREE(unknown_str);
1946 SAFE_FREE(lm_pw_ptr);
1947 SAFE_FREE(nt_pw_ptr);
1948 SAFE_FREE(nt_pw_hist_ptr);
1949 SAFE_FREE(hours);
1950
1951 return ret;
1952 }
1953
1954 uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1955 {
1956 size_t len, buflen;
1957
1958 /* times are stored as 32bit integer
1959 take care on system with 64bit wide time_t
1960 --SSS */
1961 uint32 logon_time,
1962 logoff_time,
1963 kickoff_time,
1964 bad_password_time,
1965 pass_last_set_time,
1966 pass_can_change_time,
1967 pass_must_change_time;
1968
1969 uint32 user_rid, group_rid;
1970
1971 const char *username;
1972 const char *domain;
1973 const char *nt_username;
1974 const char *dir_drive;
1975 const char *unknown_str;
1976 const char *munged_dial;
1977 const char *fullname;
1978 const char *homedir;
1979 const char *logon_script;
1980 const char *profile_path;
1981 const char *acct_desc;
1982 const char *workstations;
1983 uint32 username_len, domain_len, nt_username_len,
1984 dir_drive_len, unknown_str_len, munged_dial_len,
1985 fullname_len, homedir_len, logon_script_len,
1986 profile_path_len, acct_desc_len, workstations_len;
1987
1988 const uint8 *lm_pw;
1989 const uint8 *nt_pw;
1990 const uint8 *nt_pw_hist;
1991 uint32 lm_pw_len = 16;
1992 uint32 nt_pw_len = 16;
1993 uint32 nt_pw_hist_len;
1994 uint32 pwHistLen = 0;
1995
1996 /* do we have a valid SAM_ACCOUNT pointer? */
1997 if (sampass == NULL) {
1998 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1999 return -1;
2000 }
2001
2002 *buf = NULL;
2003 buflen = 0;
2004
2005 logon_time = (uint32)pdb_get_logon_time(sampass);
2006 logoff_time = (uint32)pdb_get_logoff_time(sampass);
2007 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
2008 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
2009 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
2010 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
2011 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
2012
2013 user_rid = pdb_get_user_rid(sampass);
2014 group_rid = pdb_get_group_rid(sampass);
2015
2016 username = pdb_get_username(sampass);
2017 if (username) {
2018 username_len = strlen(username) +1;
2019 } else {
2020 username_len = 0;
2021 }
2022
2023 domain = pdb_get_domain(sampass);
2024 if (domain) {
2025 domain_len = strlen(domain) +1;
2026 } else {
2027 domain_len = 0;
2028 }
2029
2030 nt_username = pdb_get_nt_username(sampass);
2031 if (nt_username) {
2032 nt_username_len = strlen(nt_username) +1;
2033 } else {
2034 nt_username_len = 0;
2035 }
2036
2037 fullname = pdb_get_fullname(sampass);
2038 if (fullname) {
2039 fullname_len = strlen(fullname) +1;
2040 } else {
2041 fullname_len = 0;
2042 }
2043
2044 /*
2045 * Only updates fields which have been set (not defaults from smb.conf)
2046 */
2047
2048 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
2049 dir_drive = pdb_get_dir_drive(sampass);
2050 } else {
2051 dir_drive = NULL;
2052 }
2053 if (dir_drive) {
2054 dir_drive_len = strlen(dir_drive) +1;
2055 } else {
2056 dir_drive_len = 0;
2057 }
2058
2059 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
2060 homedir = pdb_get_homedir(sampass);
2061 } else {
2062 homedir = NULL;
2063 }
2064 if (homedir) {
2065 homedir_len = strlen(homedir) +1;
2066 } else {
2067 homedir_len = 0;
2068 }
2069
2070 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
2071 logon_script = pdb_get_logon_script(sampass);
2072 } else {
2073 logon_script = NULL;
2074 }
2075 if (logon_script) {
2076 logon_script_len = strlen(logon_script) +1;
2077 } else {
2078 logon_script_len = 0;
2079 }
2080
2081 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
2082 profile_path = pdb_get_profile_path(sampass);
2083 } else {
2084 profile_path = NULL;
2085 }
2086 if (profile_path) {
2087 profile_path_len = strlen(profile_path) +1;
2088 } else {
2089 profile_path_len = 0;
2090 }
2091
2092 lm_pw = pdb_get_lanman_passwd(sampass);
2093 if (!lm_pw) {
2094 lm_pw_len = 0;
2095 }
2096
2097 nt_pw = pdb_get_nt_passwd(sampass);
2098 if (!nt_pw) {
2099 nt_pw_len = 0;
2100 }
2101
2102 account_policy_get(AP_PASSWORD_HISTORY, &pwHistLen);
2103 nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
2104 if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
2105 nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
2106 } else {
2107 nt_pw_hist_len = 0;
2108 }
2109
2110 acct_desc = pdb_get_acct_desc(sampass);
2111 if (acct_desc) {
2112 acct_desc_len = strlen(acct_desc) +1;
2113 } else {
2114 acct_desc_len = 0;
2115 }
2116
2117 workstations = pdb_get_workstations(sampass);
2118 if (workstations) {
2119 workstations_len = strlen(workstations) +1;
2120 } else {
2121 workstations_len = 0;
2122 }
2123
2124 unknown_str = NULL;
2125 unknown_str_len = 0;
2126
2127 munged_dial = pdb_get_munged_dial(sampass);
2128 if (munged_dial) {
2129 munged_dial_len = strlen(munged_dial) +1;
2130 } else {
2131 munged_dial_len = 0;
2132 }
2133
2134 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
2135
2136 /* one time to get the size needed */
2137 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
2138 logon_time, /* d */
2139 logoff_time, /* d */
2140 kickoff_time, /* d */
2141 bad_password_time, /* d */
2142 pass_last_set_time, /* d */
2143 pass_can_change_time, /* d */
2144 pass_must_change_time, /* d */
2145 username_len, username, /* B */
2146 domain_len, domain, /* B */
2147 nt_username_len, nt_username, /* B */
2148 fullname_len, fullname, /* B */
2149 homedir_len, homedir, /* B */
2150 dir_drive_len, dir_drive, /* B */
2151 logon_script_len, logon_script, /* B */
2152 profile_path_len, profile_path, /* B */
2153 acct_desc_len, acct_desc, /* B */
2154 workstations_len, workstations, /* B */
2155 unknown_str_len, unknown_str, /* B */
2156 munged_dial_len, munged_dial, /* B */
2157 user_rid, /* d */
2158 group_rid, /* d */
2159 lm_pw_len, lm_pw, /* B */
2160 nt_pw_len, nt_pw, /* B */
2161 nt_pw_hist_len, nt_pw_hist, /* B */
2162 pdb_get_acct_ctrl(sampass), /* w */
2163 pdb_get_logon_divs(sampass), /* w */
2164 pdb_get_hours_len(sampass), /* d */
2165 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2166 pdb_get_bad_password_count(sampass), /* w */
2167 pdb_get_logon_count(sampass), /* w */
2168 pdb_get_unknown_6(sampass)); /* d */
2169
2170 if (size_only) {
2171 return buflen;
2172 }
2173
2174 /* malloc the space needed */
2175 if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
2176 DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
2177 return (-1);
2178 }
2179
2180 /* now for the real call to tdb_pack() */
2181 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
2182 logon_time, /* d */
2183 logoff_time, /* d */
2184 kickoff_time, /* d */
2185 bad_password_time, /* d */
2186 pass_last_set_time, /* d */
2187 pass_can_change_time, /* d */
2188 pass_must_change_time, /* d */
2189 username_len, username, /* B */
2190 domain_len, domain, /* B */
2191 nt_username_len, nt_username, /* B */
2192 fullname_len, fullname, /* B */
2193 homedir_len, homedir, /* B */
2194 dir_drive_len, dir_drive, /* B */
2195 logon_script_len, logon_script, /* B */
2196 profile_path_len, profile_path, /* B */
2197 acct_desc_len, acct_desc, /* B */
2198 workstations_len, workstations, /* B */
2199 unknown_str_len, unknown_str, /* B */
2200 munged_dial_len, munged_dial, /* B */
2201 user_rid, /* d */
2202 group_rid, /* d */
2203 lm_pw_len, lm_pw, /* B */
2204 nt_pw_len, nt_pw, /* B */
2205 nt_pw_hist_len, nt_pw_hist, /* B */
2206 pdb_get_acct_ctrl(sampass), /* w */
2207 pdb_get_logon_divs(sampass), /* w */
2208 pdb_get_hours_len(sampass), /* d */
2209 MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
2210 pdb_get_bad_password_count(sampass), /* w */
2211 pdb_get_logon_count(sampass), /* w */
2212 pdb_get_unknown_6(sampass)); /* d */
2213
2214 /* check to make sure we got it correct */
2215 if (buflen != len) {
2216 DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2217 (unsigned long)buflen, (unsigned long)len));
2218 /* error */
2219 SAFE_FREE (*buf);
2220 return (-1);
2221 }
2222
2223 return (buflen);
2224 }
2225
2226 BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
2227 {
2228 BOOL result;
2229 uint8 *buf;
2230 int len;
2231
2232 if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
2233 return False;
2234
2235 len = init_buffer_from_sam_v2(&buf, src, False);
2236
2237 if (len == -1)
2238 return False;
2239
2240 result = init_sam_from_buffer_v2(*dst, buf, len);
2241 (*dst)->methods = src->methods;
2242
2243 free(buf);
2244
2245 return result;
2246 }
2247
2248 /**********************************************************************
2249 **********************************************************************/
2250
2251 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2252 {
2253 uid_t u_low, u_high;
2254 gid_t g_low, g_high;
2255
2256 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2257 return False;
2258 }
2259
2260 *low = (u_low < g_low) ? u_low : g_low;
2261 *high = (u_high < g_high) ? u_high : g_high;
2262
2263 return True;
2264 }
2265
2266 /******************************************************************
2267 Get the the non-algorithmic RID range if idmap range are defined
2268 ******************************************************************/
2269
2270 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2271 {
2272 uint32 id_low, id_high;
2273
2274 if (!lp_enable_rid_algorithm()) {
2275 *low = BASE_RID;
2276 *high = (uint32)-1;
2277 }
2278
2279 if (!get_free_ugid_range(&id_low, &id_high)) {
2280 return False;
2281 }
2282
2283 *low = algorithmic_pdb_uid_to_user_rid(id_low);
2284 if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2285 *high = (uint32)-1;
2286 } else {
2287 *high = algorithmic_pdb_uid_to_user_rid(id_high);
2288 }
2289
2290 return True;
2291 }
2292
2293 /*********************************************************************
2294 Update the bad password count checking the AP_RESET_COUNT_TIME
2295 *********************************************************************/
2296
2297 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2298 {
2299 time_t LastBadPassword;
2300 uint16 BadPasswordCount;
2301 uint32 resettime;
2302
2303 if (!sampass) return False;
2304
2305 BadPasswordCount = pdb_get_bad_password_count(sampass);
2306 if (!BadPasswordCount) {
2307 DEBUG(9, ("No bad password attempts.\n"));
2308 return True;
2309 }
2310
2311 if (!account_policy_get(AP_RESET_COUNT_TIME, &resettime)) {
2312 DEBUG(0, ("pdb_update_bad_password_count: account_policy_get failed.\n"));
2313 return False;
2314 }
2315
2316 /* First, check if there is a reset time to compare */
2317 if ((resettime == (uint32) -1) || (resettime == 0)) {
2318 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2319 return True;
2320 }
2321
2322 LastBadPassword = pdb_get_bad_password_time(sampass);
2323 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2324 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2325 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2326 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2327 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2328 if (updated) {
2329 *updated = True;
2330 }
2331 }
2332
2333 return True;
2334 }
2335
2336 /*********************************************************************
2337 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2338 *********************************************************************/
2339
2340 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2341 {
2342 uint32 duration;
2343 time_t LastBadPassword;
2344
2345 if (!sampass) return False;
2346
2347 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2348 DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
2349 pdb_get_username(sampass)));
2350 return True;
2351 }
2352
2353 if (!account_policy_get(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2354 DEBUG(0, ("pdb_update_autolock_flag: account_policy_get failed.\n"));
2355 return False;
2356 }
2357
2358 /* First, check if there is a duration to compare */
2359 if ((duration == (uint32) -1) || (duration == 0)) {
2360 DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
2361 return True;
2362 }
2363
2364 LastBadPassword = pdb_get_bad_password_time(sampass);
2365 DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
2366 pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2367
2368 if (LastBadPassword == (time_t)0) {
2369 DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
2370 bad password time. Leaving locked out.\n",
2371 pdb_get_username(sampass) ));
2372 return True;
2373 }
2374
2375 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2376 pdb_set_acct_ctrl(sampass,
2377 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2378 PDB_CHANGED);
2379 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2380 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2381 if (updated) {
2382 *updated = True;
2383 }
2384 }
2385
2386 return True;
2387 }
2388
2389 /*********************************************************************
2390 Increment the bad_password_count
2391 *********************************************************************/
2392
2393 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2394 {
2395 uint32 account_policy_lockout;
2396 BOOL autolock_updated = False, badpw_updated = False;
2397
2398 if (!sampass)
2399 return False;
2400
2401 /* Retrieve the account lockout policy */
2402 if (!account_policy_get(AP_BAD_ATTEMPT_LOCKOUT,
2403 &account_policy_lockout)) {
2404 DEBUG(0, ("pdb_increment_bad_password_count: account_policy_get failed.\n"));
2405 return False;
2406 }
2407
2408 /* If there is no policy, we don't need to continue checking */
2409 if (!account_policy_lockout) {
2410 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2411 return True;
2412 }
2413
2414 /* Check if the autolock needs to be cleared */
2415 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2416 return False;
2417
2418 /* Check if the badpw count needs to be reset */
2419 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2420 return False;
2421
2422 /*
2423 Ok, now we can assume that any resetting that needs to be
2424 done has been done, and just get on with incrementing
2425 and autolocking if necessary
2426 */
2427
2428 pdb_set_bad_password_count(sampass,
2429 pdb_get_bad_password_count(sampass)+1,
2430 PDB_CHANGED);
2431 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2432
2433
2434 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2435 return True;
2436
2437 if (!pdb_set_acct_ctrl(sampass,
2438 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2439 PDB_CHANGED)) {
2440 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2441 return False;
2442 }
2443
2444 return True;
2445 }