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Apply some const
[Samba/gebeck_regimport.git] / source3 / passdb / passdb.c
blob04e41b79707ac7276cde80ef16b26f6cebd28257
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 get the default domain/netbios name to be used when dealing
51 with our passdb list of accounts
52 ******************************************************************/
53
54 const char *get_global_sam_name(void)
55 {
56 if ((lp_server_role() == ROLE_DOMAIN_PDC) || (lp_server_role() == ROLE_DOMAIN_BDC)) {
57 return lp_workgroup();
58 }
59 return global_myname();
60 }
61
62 /************************************************************
63 Fill the SAM_ACCOUNT with default values.
64 ***********************************************************/
65
66 void pdb_fill_default_sam(SAM_ACCOUNT *user)
67 {
68 ZERO_STRUCT(user->private); /* Don't touch the talloc context */
69
70 /* no initial methods */
71 user->methods = NULL;
72
73 /* Don't change these timestamp settings without a good reason.
74 They are important for NT member server compatibility. */
75
76 user->private.logon_time = (time_t)0;
77 user->private.pass_last_set_time = (time_t)0;
78 user->private.pass_can_change_time = (time_t)0;
79 user->private.logoff_time =
80 user->private.kickoff_time =
81 user->private.pass_must_change_time = get_time_t_max();
82 user->private.fields_present = 0x00ffffff;
83 user->private.logon_divs = 168; /* hours per week */
84 user->private.hours_len = 21; /* 21 times 8 bits = 168 */
85 memset(user->private.hours, 0xff, user->private.hours_len); /* available at all hours */
86 user->private.bad_password_count = 0;
87 user->private.logon_count = 0;
88 user->private.unknown_6 = 0x000004ec; /* don't know */
89
90 /* Some parts of samba strlen their pdb_get...() returns,
91 so this keeps the interface unchanged for now. */
92
93 user->private.username = "";
94 user->private.domain = "";
95 user->private.nt_username = "";
96 user->private.full_name = "";
97 user->private.home_dir = "";
98 user->private.logon_script = "";
99 user->private.profile_path = "";
100 user->private.acct_desc = "";
101 user->private.workstations = "";
102 user->private.unknown_str = "";
103 user->private.munged_dial = "";
104
105 user->private.plaintext_pw = NULL;
106
107 /*
108 Unless we know otherwise have a Account Control Bit
109 value of 'normal user'. This helps User Manager, which
110 asks for a filtered list of users.
111 */
112
113 user->private.acct_ctrl = ACB_NORMAL;
114 }
115
116 static void destroy_pdb_talloc(SAM_ACCOUNT **user)
117 {
118 if (*user) {
119 data_blob_clear_free(&((*user)->private.lm_pw));
120 data_blob_clear_free(&((*user)->private.nt_pw));
121
122 if((*user)->private.plaintext_pw!=NULL)
123 memset((*user)->private.plaintext_pw,'\0',strlen((*user)->private.plaintext_pw));
124 talloc_destroy((*user)->mem_ctx);
125 *user = NULL;
126 }
127 }
128
129
130 /**********************************************************************
131 Allocates memory and initialises a struct sam_passwd on supplied mem_ctx.
132 ***********************************************************************/
133
134 NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
135 {
136 if (*user != NULL) {
137 DEBUG(0,("pdb_init_sam_talloc: SAM_ACCOUNT was non NULL\n"));
138 #if 0
139 smb_panic("non-NULL pointer passed to pdb_init_sam\n");
140 #endif
141 return NT_STATUS_UNSUCCESSFUL;
142 }
143
144 if (!mem_ctx) {
145 DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
146 return NT_STATUS_UNSUCCESSFUL;
147 }
148
149 *user=(SAM_ACCOUNT *)talloc(mem_ctx, sizeof(SAM_ACCOUNT));
150
151 if (*user==NULL) {
152 DEBUG(0,("pdb_init_sam_talloc: error while allocating memory\n"));
153 return NT_STATUS_NO_MEMORY;
154 }
155
156 (*user)->mem_ctx = mem_ctx;
157
158 (*user)->free_fn = NULL;
159
160 pdb_fill_default_sam(*user);
161
162 return NT_STATUS_OK;
163 }
164
165
166 /*************************************************************
167 Allocates memory and initialises a struct sam_passwd.
168 ************************************************************/
169
170 NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
171 {
172 TALLOC_CTX *mem_ctx;
173 NTSTATUS nt_status;
174
175 mem_ctx = talloc_init("passdb internal SAM_ACCOUNT allocation");
176
177 if (!mem_ctx) {
178 DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
179 return NT_STATUS_NO_MEMORY;
180 }
181
182 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
183 talloc_destroy(mem_ctx);
184 return nt_status;
185 }
186
187 (*user)->free_fn = destroy_pdb_talloc;
188
189 return NT_STATUS_OK;
190 }
191
192 /**************************************************************************
193 * This function will take care of all the steps needed to correctly
194 * allocate and set the user SID, please do use this function to create new
195 * users, messing with SIDs is not good.
196 *
197 * account_data must be provided initialized, pwd may be null.
198 * SSS
199 ***************************************************************************/
200
201 static NTSTATUS pdb_set_sam_sids(SAM_ACCOUNT *account_data, const struct passwd *pwd)
202 {
203 const char *guest_account = lp_guestaccount();
204 GROUP_MAP map;
205 BOOL ret;
206
207 if (!account_data || !pwd) {
208 return NT_STATUS_INVALID_PARAMETER;
209 }
210
211 /* this is a hack this thing should not be set
212 this way --SSS */
213 if (!(guest_account && *guest_account)) {
214 DEBUG(1, ("NULL guest account!?!?\n"));
215 return NT_STATUS_UNSUCCESSFUL;
216 } else {
217 /* Ensure this *must* be set right */
218 if (strcmp(pwd->pw_name, guest_account) == 0) {
219 if (!pdb_set_user_sid_from_rid(account_data, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
220 return NT_STATUS_UNSUCCESSFUL;
221 }
222 if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
223 return NT_STATUS_UNSUCCESSFUL;
224 }
225 return NT_STATUS_OK;
226 }
227 }
228
229 if (!pdb_set_user_sid_from_rid(account_data, fallback_pdb_uid_to_user_rid(pwd->pw_uid), PDB_SET)) {
230 DEBUG(0,("Can't set User SID from RID!\n"));
231 return NT_STATUS_INVALID_PARAMETER;
232 }
233
234 /* call the mapping code here */
235 become_root();
236 ret = pdb_getgrgid(&map, pwd->pw_gid);
237 unbecome_root();
238
239 if( ret ) {
240 if (!pdb_set_group_sid(account_data, &map.sid, PDB_SET)){
241 DEBUG(0,("Can't set Group SID!\n"));
242 return NT_STATUS_INVALID_PARAMETER;
243 }
244 }
245 else {
246 if (!pdb_set_group_sid_from_rid(account_data, pdb_gid_to_group_rid(pwd->pw_gid), PDB_SET)) {
247 DEBUG(0,("Can't set Group SID\n"));
248 return NT_STATUS_INVALID_PARAMETER;
249 }
250 }
251
252 return NT_STATUS_OK;
253 }
254
255 /*************************************************************
256 Initialises a struct sam_passwd with sane values.
257 ************************************************************/
258
259 NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
260 {
261 NTSTATUS ret;
262
263 if (!pwd) {
264 return NT_STATUS_UNSUCCESSFUL;
265 }
266
267 pdb_fill_default_sam(sam_account);
268
269 pdb_set_username(sam_account, pwd->pw_name, PDB_SET);
270 pdb_set_fullname(sam_account, pwd->pw_gecos, PDB_SET);
271
272 pdb_set_unix_homedir(sam_account, pwd->pw_dir, PDB_SET);
273
274 pdb_set_domain (sam_account, get_global_sam_name(), PDB_DEFAULT);
275
276 /* When we get a proper uid -> SID and SID -> uid allocation
277 mechinism, we should call it here.
278
279 We can't just set this to 0 or allow it only to be filled
280 in when added to the backend, because the user's SID
281 may already be in security descriptors etc.
282
283 -- abartlet 11-May-02
284 */
285
286 ret = pdb_set_sam_sids(sam_account, pwd);
287 if (!NT_STATUS_IS_OK(ret)) return ret;
288
289 /* check if this is a user account or a machine account */
290 if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
291 {
292 pdb_set_profile_path(sam_account,
293 talloc_sub_specified((sam_account)->mem_ctx,
294 lp_logon_path(),
295 pwd->pw_name, global_myname(),
296 pwd->pw_uid, pwd->pw_gid),
297 PDB_DEFAULT);
298
299 pdb_set_homedir(sam_account,
300 talloc_sub_specified((sam_account)->mem_ctx,
301 lp_logon_home(),
302 pwd->pw_name, global_myname(),
303 pwd->pw_uid, pwd->pw_gid),
304 PDB_DEFAULT);
305
306 pdb_set_dir_drive(sam_account,
307 talloc_sub_specified((sam_account)->mem_ctx,
308 lp_logon_drive(),
309 pwd->pw_name, global_myname(),
310 pwd->pw_uid, pwd->pw_gid),
311 PDB_DEFAULT);
312
313 pdb_set_logon_script(sam_account,
314 talloc_sub_specified((sam_account)->mem_ctx,
315 lp_logon_script(),
316 pwd->pw_name, global_myname(),
317 pwd->pw_uid, pwd->pw_gid),
318 PDB_DEFAULT);
319 if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT)) {
320 DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", pwd->pw_name));
321 return NT_STATUS_UNSUCCESSFUL;
322 }
323 } else {
324 if (!pdb_set_acct_ctrl(sam_account, ACB_WSTRUST, PDB_DEFAULT)) {
325 DEBUG(1, ("Failed to set 'trusted workstation account' flags for user %s.\n", pwd->pw_name));
326 return NT_STATUS_UNSUCCESSFUL;
327 }
328 }
329 return NT_STATUS_OK;
330 }
331
332
333 /*************************************************************
334 Initialises a struct sam_passwd with sane values.
335 ************************************************************/
336
337 NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
338 {
339 NTSTATUS nt_status;
340
341 if (!pwd) {
342 new_sam_acct = NULL;
343 return NT_STATUS_INVALID_PARAMETER;
344 }
345
346 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
347 new_sam_acct = NULL;
348 return nt_status;
349 }
350
351 if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
352 pdb_free_sam(new_sam_acct);
353 new_sam_acct = NULL;
354 return nt_status;
355 }
356
357 return NT_STATUS_OK;
358 }
359
360
361 /*************************************************************
362 Initialises a SAM_ACCOUNT ready to add a new account, based
363 on the UNIX user. Pass in a RID if you have one
364 ************************************************************/
365
366 NTSTATUS pdb_init_sam_new(SAM_ACCOUNT **new_sam_acct, const char *username,
367 uint32 rid)
368 {
369 NTSTATUS nt_status = NT_STATUS_NO_MEMORY;
370 struct passwd *pwd;
371 BOOL ret;
372
373 pwd = Get_Pwnam(username);
374
375 if (!pwd)
376 return NT_STATUS_NO_SUCH_USER;
377
378 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(new_sam_acct, pwd))) {
379 *new_sam_acct = NULL;
380 return nt_status;
381 }
382
383 /* see if we need to generate a new rid using the 2.2 algorithm */
384 if ( rid == 0 && lp_enable_rid_algorithm() ) {
385 DEBUG(10,("pdb_init_sam_new: no RID specified. Generating one via old algorithm\n"));
386 rid = fallback_pdb_uid_to_user_rid(pwd->pw_uid);
387 }
388
389 /* set the new SID */
390
391 ret = pdb_set_user_sid_from_rid( *new_sam_acct, rid, PDB_SET );
392
393 return (ret ? NT_STATUS_OK : NT_STATUS_NO_SUCH_USER);
394 }
395
396
397 /**
398 * Free the contets of the SAM_ACCOUNT, but not the structure.
399 *
400 * Also wipes the LM and NT hashes and plaintext password from
401 * memory.
402 *
403 * @param user SAM_ACCOUNT to free members of.
404 **/
405
406 static void pdb_free_sam_contents(SAM_ACCOUNT *user)
407 {
408
409 /* Kill off sensitive data. Free()ed by the
410 talloc mechinism */
411
412 data_blob_clear_free(&(user->private.lm_pw));
413 data_blob_clear_free(&(user->private.nt_pw));
414 if (user->private.plaintext_pw!=NULL)
415 memset(user->private.plaintext_pw,'\0',strlen(user->private.plaintext_pw));
416
417 if (user->private.backend_private_data && user->private.backend_private_data_free_fn) {
418 user->private.backend_private_data_free_fn(&user->private.backend_private_data);
419 }
420 }
421
422
423 /************************************************************
424 Reset the SAM_ACCOUNT and free the NT/LM hashes.
425 ***********************************************************/
426
427 NTSTATUS pdb_reset_sam(SAM_ACCOUNT *user)
428 {
429 if (user == NULL) {
430 DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
431 #if 0
432 smb_panic("NULL pointer passed to pdb_free_sam\n");
433 #endif
434 return NT_STATUS_UNSUCCESSFUL;
435 }
436
437 pdb_free_sam_contents(user);
438
439 pdb_fill_default_sam(user);
440
441 return NT_STATUS_OK;
442 }
443
444
445 /************************************************************
446 Free the SAM_ACCOUNT and the member pointers.
447 ***********************************************************/
448
449 NTSTATUS pdb_free_sam(SAM_ACCOUNT **user)
450 {
451 if (*user == NULL) {
452 DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
453 #if 0
454 smb_panic("NULL pointer passed to pdb_free_sam\n");
455 #endif
456 return NT_STATUS_UNSUCCESSFUL;
457 }
458
459 pdb_free_sam_contents(*user);
460
461 if ((*user)->free_fn) {
462 (*user)->free_fn(user);
463 }
464
465 return NT_STATUS_OK;
466 }
467
468 /**********************************************************
469 Encode the account control bits into a string.
470 length = length of string to encode into (including terminating
471 null). length *MUST BE MORE THAN 2* !
472 **********************************************************/
473
474 char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
475 {
476 static fstring acct_str;
477
478 size_t i = 0;
479
480 SMB_ASSERT(length <= sizeof(acct_str));
481
482 acct_str[i++] = '[';
483
484 if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
485 if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
486 if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
487 if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
488 if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
489 if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
490 if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
491 if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
492 if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
493 if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
494 if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
495
496 for ( ; i < length - 2 ; i++ )
497 acct_str[i] = ' ';
498
499 i = length - 2;
500 acct_str[i++] = ']';
501 acct_str[i++] = '\0';
502
503 return acct_str;
504 }
505
506 /**********************************************************
507 Decode the account control bits from a string.
508 **********************************************************/
509
510 uint16 pdb_decode_acct_ctrl(const char *p)
511 {
512 uint16 acct_ctrl = 0;
513 BOOL finished = False;
514
515 /*
516 * Check if the account type bits have been encoded after the
517 * NT password (in the form [NDHTUWSLXI]).
518 */
519
520 if (*p != '[')
521 return 0;
522
523 for (p++; *p && !finished; p++) {
524 switch (*p) {
525 case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
526 case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
527 case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
528 case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
529 case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
530 case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
531 case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
532 case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
533 case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
534 case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
535 case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
536 case ' ': { break; }
537 case ':':
538 case '\n':
539 case '\0':
540 case ']':
541 default: { finished = True; }
542 }
543 }
544
545 return acct_ctrl;
546 }
547
548 /*************************************************************
549 Routine to set 32 hex password characters from a 16 byte array.
550 **************************************************************/
551
552 void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
553 {
554 if (pwd != NULL) {
555 int i;
556 for (i = 0; i < 16; i++)
557 slprintf(&p[i*2], 3, "%02X", pwd[i]);
558 } else {
559 if (acct_ctrl & ACB_PWNOTREQ)
560 safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
561 else
562 safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
563 }
564 }
565
566 /*************************************************************
567 Routine to get the 32 hex characters and turn them
568 into a 16 byte array.
569 **************************************************************/
570
571 BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
572 {
573 int i;
574 unsigned char lonybble, hinybble;
575 const char *hexchars = "0123456789ABCDEF";
576 char *p1, *p2;
577
578 if (!p)
579 return (False);
580
581 for (i = 0; i < 32; i += 2) {
582 hinybble = toupper(p[i]);
583 lonybble = toupper(p[i + 1]);
584
585 p1 = strchr(hexchars, hinybble);
586 p2 = strchr(hexchars, lonybble);
587
588 if (!p1 || !p2)
589 return (False);
590
591 hinybble = PTR_DIFF(p1, hexchars);
592 lonybble = PTR_DIFF(p2, hexchars);
593
594 pwd[i / 2] = (hinybble << 4) | lonybble;
595 }
596 return (True);
597 }
598
599 int algorithmic_rid_base(void)
600 {
601 static int rid_offset = 0;
602
603 if (rid_offset != 0)
604 return rid_offset;
605
606 rid_offset = lp_algorithmic_rid_base();
607
608 if (rid_offset < BASE_RID) {
609 /* Try to prevent admin foot-shooting, we can't put algorithmic
610 rids below 1000, that's the 'well known RIDs' on NT */
611 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
612 rid_offset = BASE_RID;
613 }
614 if (rid_offset & 1) {
615 DEBUG(0, ("algorithmic rid base must be even\n"));
616 rid_offset += 1;
617 }
618 return rid_offset;
619 }
620
621 /*******************************************************************
622 Converts NT user RID to a UNIX uid.
623 ********************************************************************/
624
625 uid_t fallback_pdb_user_rid_to_uid(uint32 user_rid)
626 {
627 int rid_offset = algorithmic_rid_base();
628 return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
629 }
630
631 /*******************************************************************
632 converts UNIX uid to an NT User RID.
633 ********************************************************************/
634
635 uint32 fallback_pdb_uid_to_user_rid(uid_t uid)
636 {
637 int rid_offset = algorithmic_rid_base();
638 return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
639 }
640
641 /*******************************************************************
642 Converts NT group RID to a UNIX gid.
643 ********************************************************************/
644
645 gid_t pdb_group_rid_to_gid(uint32 group_rid)
646 {
647 int rid_offset = algorithmic_rid_base();
648 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
649 }
650
651 /*******************************************************************
652 converts NT Group RID to a UNIX uid.
653
654 warning: you must not call that function only
655 you must do a call to the group mapping first.
656 there is not anymore a direct link between the gid and the rid.
657 ********************************************************************/
658
659 uint32 pdb_gid_to_group_rid(gid_t gid)
660 {
661 int rid_offset = algorithmic_rid_base();
662 return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
663 }
664
665 /*******************************************************************
666 Decides if a RID is a well known RID.
667 ********************************************************************/
668
669 static BOOL pdb_rid_is_well_known(uint32 rid)
670 {
671 /* Not using rid_offset here, because this is the actual
672 NT fixed value (1000) */
673
674 return (rid < BASE_RID);
675 }
676
677 /*******************************************************************
678 Decides if a RID is a user or group RID.
679 ********************************************************************/
680
681 BOOL fallback_pdb_rid_is_user(uint32 rid)
682 {
683 /* lkcl i understand that NT attaches an enumeration to a RID
684 * such that it can be identified as either a user, group etc
685 * type. there are 5 such categories, and they are documented.
686 */
687 /* However, they are not in the RID, just somthing you can query
688 seperatly. Sorry luke :-) */
689
690 if(pdb_rid_is_well_known(rid)) {
691 /*
692 * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
693 * and DOMAIN_USER_RID_GUEST.
694 */
695 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
696 return True;
697 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
698 return True;
699 }
700 return False;
701 }
702
703 /*******************************************************************
704 Convert a rid into a name. Used in the lookup SID rpc.
705 ********************************************************************/
706
707 BOOL local_lookup_sid(const DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
708 {
709 uint32 rid;
710 SAM_ACCOUNT *sam_account = NULL;
711 GROUP_MAP map;
712 BOOL ret;
713
714 if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)){
715 DEBUG(0,("local_lookup_sid: sid_peek_check_rid return False! SID: %s\n",
716 sid_string_static(&map.sid)));
717 return False;
718 }
719 *psid_name_use = SID_NAME_UNKNOWN;
720
721 DEBUG(5,("local_lookup_sid: looking up RID %u.\n", (unsigned int)rid));
722
723 if (rid == DOMAIN_USER_RID_ADMIN) {
724 const char **admin_list = lp_admin_users(-1);
725 *psid_name_use = SID_NAME_USER;
726 if (admin_list) {
727 const char *p = *admin_list;
728 if(!next_token(&p, name, NULL, sizeof(fstring)))
729 fstrcpy(name, "Administrator");
730 } else {
731 fstrcpy(name, "Administrator");
732 }
733 return True;
734 }
735
736 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
737 return False;
738 }
739
740 /* see if the passdb can help us with the name of the user */
741
742 /* BEING ROOT BLLOCK */
743 become_root();
744 if (pdb_getsampwsid(sam_account, sid)) {
745 unbecome_root(); /* -----> EXIT BECOME_ROOT() */
746 fstrcpy(name, pdb_get_username(sam_account));
747 *psid_name_use = SID_NAME_USER;
748
749 pdb_free_sam(&sam_account);
750
751 return True;
752 }
753 pdb_free_sam(&sam_account);
754
755 ret = pdb_getgrsid(&map, *sid);
756 unbecome_root();
757 /* END BECOME_ROOT BLOCK */
758
759 if ( ret ) {
760 if (map.gid!=(gid_t)-1) {
761 DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
762 } else {
763 DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid. Returning name.\n", map.nt_name));
764 }
765
766 fstrcpy(name, map.nt_name);
767 *psid_name_use = map.sid_name_use;
768 return True;
769 }
770
771 if (fallback_pdb_rid_is_user(rid)) {
772 uid_t uid;
773 struct passwd *pw = NULL;
774
775 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
776
777 uid = fallback_pdb_user_rid_to_uid(rid);
778 pw = sys_getpwuid( uid );
779
780 DEBUG(5,("local_lookup_sid: looking up uid %u %s\n", (unsigned int)uid,
781 pw ? "succeeded" : "failed" ));
782
783 if ( !pw )
784 fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
785 else
786 fstrcpy( name, pw->pw_name );
787
788 DEBUG(5,("local_lookup_sid: found user %s for rid %u\n", name,
789 (unsigned int)rid ));
790
791 *psid_name_use = SID_NAME_USER;
792
793 return ( pw != NULL );
794 } else {
795 gid_t gid;
796 struct group *gr;
797
798 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
799
800 gid = pdb_group_rid_to_gid(rid);
801 gr = getgrgid(gid);
802
803 *psid_name_use = SID_NAME_ALIAS;
804
805 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
806 gr ? "succeeded" : "failed" ));
807
808 if( !gr )
809 fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
810 else
811 fstrcpy( name, gr->gr_name);
812
813 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
814 (unsigned int)rid ));
815
816 /* assume fallback groups aer domain global groups */
817
818 *psid_name_use = SID_NAME_DOM_GRP;
819
820 return ( gr != NULL );
821 }
822 }
823
824 /*******************************************************************
825 Convert a name into a SID. Used in the lookup name rpc.
826 ********************************************************************/
827
828 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
829 {
830 extern DOM_SID global_sid_World_Domain;
831 DOM_SID local_sid;
832 fstring user;
833 SAM_ACCOUNT *sam_account = NULL;
834 struct group *grp;
835 GROUP_MAP map;
836
837 *psid_name_use = SID_NAME_UNKNOWN;
838
839 /*
840 * user may be quoted a const string, and map_username and
841 * friends can modify it. Make a modifiable copy. JRA.
842 */
843
844 fstrcpy(user, c_user);
845
846 sid_copy(&local_sid, get_global_sam_sid());
847
848 /*
849 * Special case for MACHINE\Everyone. Map to the world_sid.
850 */
851
852 if(strequal(user, "Everyone")) {
853 sid_copy( psid, &global_sid_World_Domain);
854 sid_append_rid(psid, 0);
855 *psid_name_use = SID_NAME_ALIAS;
856 return True;
857 }
858
859 (void)map_username(user);
860
861 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
862 return False;
863 }
864
865 /* BEGIN ROOT BLOCK */
866
867 become_root();
868 if (pdb_getsampwnam(sam_account, user)) {
869 unbecome_root();
870 sid_copy(psid, pdb_get_user_sid(sam_account));
871 *psid_name_use = SID_NAME_USER;
872
873 pdb_free_sam(&sam_account);
874 return True;
875 }
876
877 pdb_free_sam(&sam_account);
878
879 /*
880 * Maybe it was a group ?
881 */
882
883 /* check if it's a mapped group */
884 if (pdb_getgrnam(&map, user)) {
885 /* yes it's a mapped group */
886 sid_copy(&local_sid, &map.sid);
887 *psid_name_use = map.sid_name_use;
888 } else {
889 /* it's not a mapped group */
890 grp = getgrnam(user);
891 if(!grp) {
892 unbecome_root(); /* ---> exit form block */
893 return False;
894 }
895
896 /*
897 *check if it's mapped, if it is reply it doesn't exist
898 *
899 * that's to prevent this case:
900 *
901 * unix group ug is mapped to nt group ng
902 * someone does a lookup on ug
903 * we must not reply as it doesn't "exist" anymore
904 * for NT. For NT only ng exists.
905 * JFM, 30/11/2001
906 */
907
908 if (pdb_getgrgid(&map, grp->gr_gid)){
909 unbecome_root(); /* ---> exit form block */
910 return False;
911 }
912
913 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
914 *psid_name_use = SID_NAME_ALIAS;
915 }
916 unbecome_root();
917 /* END ROOT BLOCK */
918
919 sid_copy( psid, &local_sid);
920
921 return True;
922 }
923
924 /*************************************************************
925 Change a password entry in the local smbpasswd file.
926 *************************************************************/
927
928 BOOL local_password_change(const char *user_name, int local_flags,
929 const char *new_passwd,
930 char *err_str, size_t err_str_len,
931 char *msg_str, size_t msg_str_len)
932 {
933 SAM_ACCOUNT *sam_pass=NULL;
934 uint16 other_acb;
935
936 *err_str = '\0';
937 *msg_str = '\0';
938
939 /* Get the smb passwd entry for this user */
940 pdb_init_sam(&sam_pass);
941
942 become_root();
943 if(!pdb_getsampwnam(sam_pass, user_name)) {
944 unbecome_root();
945 pdb_free_sam(&sam_pass);
946
947 if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
948 /* Might not exist in /etc/passwd. Use rid algorithm here */
949 if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
950 slprintf(err_str, err_str_len-1, "Failed to initialise SAM_ACCOUNT for user %s.\n", user_name);
951 return False;
952 }
953 } else {
954 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
955 return False;
956 }
957 } else {
958 unbecome_root();
959 /* the entry already existed */
960 local_flags &= ~LOCAL_ADD_USER;
961 }
962
963 /* the 'other' acb bits not being changed here */
964 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
965 if (local_flags & LOCAL_TRUST_ACCOUNT) {
966 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
967 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
968 pdb_free_sam(&sam_pass);
969 return False;
970 }
971 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
972 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
973 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
974 pdb_free_sam(&sam_pass);
975 return False;
976 }
977 } else {
978 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
979 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
980 pdb_free_sam(&sam_pass);
981 return False;
982 }
983 }
984
985 /*
986 * We are root - just write the new password
987 * and the valid last change time.
988 */
989
990 if (local_flags & LOCAL_DISABLE_USER) {
991 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
992 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
993 pdb_free_sam(&sam_pass);
994 return False;
995 }
996 } else if (local_flags & LOCAL_ENABLE_USER) {
997 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
998 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
999 pdb_free_sam(&sam_pass);
1000 return False;
1001 }
1002 }
1003
1004 if (local_flags & LOCAL_SET_NO_PASSWORD) {
1005 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1006 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1007 pdb_free_sam(&sam_pass);
1008 return False;
1009 }
1010 } else if (local_flags & LOCAL_SET_PASSWORD) {
1011 /*
1012 * If we're dealing with setting a completely empty user account
1013 * ie. One with a password of 'XXXX', but not set disabled (like
1014 * an account created from scratch) then if the old password was
1015 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1016 * We remove that as we're giving this user their first password
1017 * and the decision hasn't really been made to disable them (ie.
1018 * don't create them disabled). JRA.
1019 */
1020 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1021 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1022 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1023 pdb_free_sam(&sam_pass);
1024 return False;
1025 }
1026 }
1027 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1028 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1029 pdb_free_sam(&sam_pass);
1030 return False;
1031 }
1032
1033 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1034 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1035 pdb_free_sam(&sam_pass);
1036 return False;
1037 }
1038 }
1039
1040 if (local_flags & LOCAL_ADD_USER) {
1041 if (pdb_add_sam_account(sam_pass)) {
1042 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1043 pdb_free_sam(&sam_pass);
1044 return True;
1045 } else {
1046 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1047 pdb_free_sam(&sam_pass);
1048 return False;
1049 }
1050 } else if (local_flags & LOCAL_DELETE_USER) {
1051 if (!pdb_delete_sam_account(sam_pass)) {
1052 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1053 pdb_free_sam(&sam_pass);
1054 return False;
1055 }
1056 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1057 } else {
1058 if(!pdb_update_sam_account(sam_pass)) {
1059 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1060 pdb_free_sam(&sam_pass);
1061 return False;
1062 }
1063 if(local_flags & LOCAL_DISABLE_USER)
1064 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1065 else if (local_flags & LOCAL_ENABLE_USER)
1066 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1067 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1068 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1069 }
1070
1071 pdb_free_sam(&sam_pass);
1072 return True;
1073 }
1074
1075 /****************************************************************************
1076 Convert a uid to SID - algorithmic.
1077 ****************************************************************************/
1078
1079 DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
1080 {
1081 if ( !lp_enable_rid_algorithm() )
1082 return NULL;
1083
1084 DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
1085 sid_copy( psid, get_global_sam_sid() );
1086 sid_append_rid( psid, fallback_pdb_uid_to_user_rid(uid) );
1087 DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
1088 (unsigned int)uid, sid_string_static(psid) ));
1089
1090 return psid;
1091 }
1092
1093 /****************************************************************************
1094 Convert a uid to SID - locally.
1095 ****************************************************************************/
1096
1097 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
1098 {
1099 SAM_ACCOUNT *sampw = NULL;
1100 struct passwd *unix_pw;
1101 BOOL ret;
1102
1103 unix_pw = sys_getpwuid( uid );
1104
1105 if ( !unix_pw ) {
1106 DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
1107 return algorithmic_uid_to_sid( psid, uid);
1108 }
1109
1110 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1111 DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
1112 return NULL;
1113 }
1114
1115 become_root();
1116 ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
1117 unbecome_root();
1118
1119 if ( ret )
1120 sid_copy( psid, pdb_get_user_sid(sampw) );
1121 else {
1122 DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
1123 unix_pw->pw_name, (unsigned long)uid));
1124
1125 return algorithmic_uid_to_sid( psid, uid);
1126 }
1127
1128 DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
1129 (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
1130
1131 return psid;
1132 }
1133
1134 /****************************************************************************
1135 Convert a SID to uid - locally.
1136 ****************************************************************************/
1137
1138 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1139 {
1140 SAM_ACCOUNT *sampw = NULL;
1141 struct passwd *unix_pw;
1142 const char *user_name;
1143
1144 *name_type = SID_NAME_UNKNOWN;
1145
1146 /*
1147 * We can only convert to a uid if this is our local
1148 * Domain SID (ie. we are the controling authority).
1149 */
1150 if (!sid_check_is_in_our_domain(psid) ) {
1151 DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
1152 return False;
1153 }
1154
1155 /* lookup the user account */
1156
1157 if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
1158 DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
1159 return False;
1160 }
1161
1162 become_root();
1163 if ( !pdb_getsampwsid(sampw, psid) ) {
1164 unbecome_root();
1165 DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
1166 sid_string_static(psid)));
1167 return False;
1168 }
1169 unbecome_root();
1170
1171 user_name = pdb_get_username(sampw);
1172
1173 unix_pw = sys_getpwnam( user_name );
1174
1175 if ( !unix_pw ) {
1176 DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
1177 user_name));
1178 pdb_free_sam( &sampw );
1179 return False;
1180 }
1181
1182 *puid = unix_pw->pw_uid;
1183
1184 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
1185 (unsigned int)*puid, user_name ));
1186
1187 *name_type = SID_NAME_USER;
1188
1189 return True;
1190 }
1191
1192 /****************************************************************************
1193 Convert a gid to SID - locally.
1194 ****************************************************************************/
1195
1196 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
1197 {
1198 GROUP_MAP group;
1199 BOOL ret;
1200
1201 /* we don't need to disable winbindd since the gid is stored in
1202 the GROUP_MAP object */
1203
1204 /* done as root since ldap backend requires root to open a connection */
1205
1206 become_root();
1207 ret = pdb_getgrgid( &group, gid );
1208 unbecome_root();
1209
1210 if ( !ret ) {
1211
1212 /* fallback to rid mapping if enabled */
1213
1214 if ( lp_enable_rid_algorithm() ) {
1215 sid_copy(psid, get_global_sam_sid());
1216 sid_append_rid(psid, pdb_gid_to_group_rid(gid));
1217
1218 DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
1219 (unsigned int)gid, sid_string_static(psid)));
1220
1221 return psid;
1222 }
1223 else
1224 return NULL;
1225 }
1226
1227 sid_copy( psid, &group.sid );
1228
1229 DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
1230 (unsigned int)gid, sid_string_static(psid)));
1231
1232 return psid;
1233 }
1234
1235 /****************************************************************************
1236 Convert a SID to gid - locally.
1237 ****************************************************************************/
1238
1239 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
1240 {
1241 uint32 rid;
1242 GROUP_MAP group;
1243 BOOL ret;
1244
1245 *name_type = SID_NAME_UNKNOWN;
1246
1247 /* This call can enumerate group mappings for foreign sids as well.
1248 So don't check for a match against our domain SID */
1249
1250 /* we don't need to disable winbindd since the gid is stored in
1251 the GROUP_MAP object */
1252
1253 become_root();
1254 ret = pdb_getgrsid(&group, *psid);
1255 unbecome_root();
1256
1257 if ( !ret ) {
1258
1259 /* fallback to rid mapping if enabled */
1260
1261 if ( lp_enable_rid_algorithm() ) {
1262
1263 if (!sid_check_is_in_our_domain(psid) ) {
1264 DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
1265 return False;
1266 }
1267
1268 if (!sid_peek_rid(psid, &rid)) {
1269 DEBUG(10,("local_sid_to_uid: invalid SID!\n"));
1270 return False;
1271 }
1272
1273 DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
1274
1275 if (fallback_pdb_rid_is_user(rid)) {
1276 DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
1277 return False;
1278 } else {
1279 *pgid = pdb_group_rid_to_gid(rid);
1280 DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
1281 return True;
1282 }
1283 }
1284
1285 return False;
1286 }
1287
1288 *pgid = group.gid;
1289
1290 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
1291 (unsigned int)*pgid));
1292
1293 return True;
1294 }
1295
1296 /**********************************************************************
1297 Marshall/unmarshall SAM_ACCOUNT structs.
1298 *********************************************************************/
1299
1300 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
1301 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
1302
1303 /**********************************************************************
1304 Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
1305 *********************************************************************/
1306
1307 BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1308 {
1309 return(init_sam_from_buffer_v1(sampass, buf, buflen));
1310 }
1311
1312 /**********************************************************************
1313 Intialize a BYTE buffer from a SAM_ACCOUNT struct
1314 *********************************************************************/
1315
1316 uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1317 {
1318 return(init_buffer_from_sam_v1(buf, sampass, size_only));
1319 }
1320
1321
1322 BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1323 {
1324
1325 /* times are stored as 32bit integer
1326 take care on system with 64bit wide time_t
1327 --SSS */
1328 uint32 logon_time,
1329 logoff_time,
1330 kickoff_time,
1331 pass_last_set_time,
1332 pass_can_change_time,
1333 pass_must_change_time;
1334 char *username;
1335 char *domain;
1336 char *nt_username;
1337 char *dir_drive;
1338 char *unknown_str;
1339 char *munged_dial;
1340 char *fullname;
1341 char *homedir;
1342 char *logon_script;
1343 char *profile_path;
1344 char *acct_desc;
1345 char *workstations;
1346 uint32 username_len, domain_len, nt_username_len,
1347 dir_drive_len, unknown_str_len, munged_dial_len,
1348 fullname_len, homedir_len, logon_script_len,
1349 profile_path_len, acct_desc_len, workstations_len;
1350
1351 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1352 uint16 acct_ctrl, logon_divs;
1353 uint16 bad_password_count, logon_count;
1354 uint8 *hours;
1355 static uint8 *lm_pw_ptr, *nt_pw_ptr;
1356 uint32 len = 0;
1357 uint32 lm_pw_len, nt_pw_len, hourslen;
1358 BOOL ret = True;
1359
1360 if(sampass == NULL || buf == NULL) {
1361 DEBUG(0, ("init_sam_from_buffer: NULL parameters found!\n"));
1362 return False;
1363 }
1364
1365 /* unpack the buffer into variables */
1366 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
1367 &logon_time,
1368 &logoff_time,
1369 &kickoff_time,
1370 &pass_last_set_time,
1371 &pass_can_change_time,
1372 &pass_must_change_time,
1373 &username_len, &username,
1374 &domain_len, &domain,
1375 &nt_username_len, &nt_username,
1376 &fullname_len, &fullname,
1377 &homedir_len, &homedir,
1378 &dir_drive_len, &dir_drive,
1379 &logon_script_len, &logon_script,
1380 &profile_path_len, &profile_path,
1381 &acct_desc_len, &acct_desc,
1382 &workstations_len, &workstations,
1383 &unknown_str_len, &unknown_str,
1384 &munged_dial_len, &munged_dial,
1385 &user_rid,
1386 &group_rid,
1387 &lm_pw_len, &lm_pw_ptr,
1388 &nt_pw_len, &nt_pw_ptr,
1389 &acct_ctrl,
1390 &remove_me, /* remove on the next TDB_FORMAT upgarde */
1391 &logon_divs,
1392 &hours_len,
1393 &hourslen, &hours,
1394 &bad_password_count,
1395 &logon_count,
1396 &unknown_6);
1397
1398 if (len == (uint32) -1) {
1399 ret = False;
1400 goto done;
1401 }
1402
1403 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1404 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1405 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1406 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1407 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1408 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1409
1410 pdb_set_username(sampass, username, PDB_SET);
1411 pdb_set_domain(sampass, domain, PDB_SET);
1412 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1413 pdb_set_fullname(sampass, fullname, PDB_SET);
1414
1415 if (homedir) {
1416 pdb_set_homedir(sampass, homedir, PDB_SET);
1417 }
1418 else {
1419 pdb_set_homedir(sampass,
1420 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1421 PDB_DEFAULT);
1422 }
1423
1424 if (dir_drive)
1425 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1426 else {
1427 pdb_set_dir_drive(sampass,
1428 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1429 PDB_DEFAULT);
1430 }
1431
1432 if (logon_script)
1433 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1434 else {
1435 pdb_set_logon_script(sampass,
1436 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1437 PDB_DEFAULT);
1438 }
1439
1440 if (profile_path) {
1441 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1442 } else {
1443 pdb_set_profile_path(sampass,
1444 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1445 PDB_DEFAULT);
1446 }
1447
1448 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1449 pdb_set_workstations(sampass, workstations, PDB_SET);
1450 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1451
1452 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1453 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1454 ret = False;
1455 goto done;
1456 }
1457 }
1458
1459 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1460 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1461 ret = False;
1462 goto done;
1463 }
1464 }
1465
1466 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1467 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1468 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1469 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1470 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1471 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1472 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1473 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1474 pdb_set_hours(sampass, hours, PDB_SET);
1475
1476 done:
1477
1478 SAFE_FREE(username);
1479 SAFE_FREE(domain);
1480 SAFE_FREE(nt_username);
1481 SAFE_FREE(fullname);
1482 SAFE_FREE(homedir);
1483 SAFE_FREE(dir_drive);
1484 SAFE_FREE(logon_script);
1485 SAFE_FREE(profile_path);
1486 SAFE_FREE(acct_desc);
1487 SAFE_FREE(workstations);
1488 SAFE_FREE(munged_dial);
1489 SAFE_FREE(unknown_str);
1490 SAFE_FREE(hours);
1491
1492 return ret;
1493 }
1494
1495
1496 uint32 init_buffer_from_sam_v0 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1497 {
1498 size_t len, buflen;
1499
1500 /* times are stored as 32bit integer
1501 take care on system with 64bit wide time_t
1502 --SSS */
1503 uint32 logon_time,
1504 logoff_time,
1505 kickoff_time,
1506 pass_last_set_time,
1507 pass_can_change_time,
1508 pass_must_change_time;
1509
1510 uint32 user_rid, group_rid;
1511
1512 const char *username;
1513 const char *domain;
1514 const char *nt_username;
1515 const char *dir_drive;
1516 const char *unknown_str;
1517 const char *munged_dial;
1518 const char *fullname;
1519 const char *homedir;
1520 const char *logon_script;
1521 const char *profile_path;
1522 const char *acct_desc;
1523 const char *workstations;
1524 uint32 username_len, domain_len, nt_username_len,
1525 dir_drive_len, unknown_str_len, munged_dial_len,
1526 fullname_len, homedir_len, logon_script_len,
1527 profile_path_len, acct_desc_len, workstations_len;
1528
1529 const uint8 *lm_pw;
1530 const uint8 *nt_pw;
1531 uint32 lm_pw_len = 16;
1532 uint32 nt_pw_len = 16;
1533
1534 /* do we have a valid SAM_ACCOUNT pointer? */
1535 if (sampass == NULL) {
1536 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1537 return -1;
1538 }
1539
1540 *buf = NULL;
1541 buflen = 0;
1542
1543 logon_time = (uint32)pdb_get_logon_time(sampass);
1544 logoff_time = (uint32)pdb_get_logoff_time(sampass);
1545 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
1546 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
1547 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
1548 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
1549
1550 user_rid = pdb_get_user_rid(sampass);
1551 group_rid = pdb_get_group_rid(sampass);
1552
1553 username = pdb_get_username(sampass);
1554 if (username)
1555 username_len = strlen(username) +1;
1556 else
1557 username_len = 0;
1558
1559 domain = pdb_get_domain(sampass);
1560 if (domain)
1561 domain_len = strlen(domain) +1;
1562 else
1563 domain_len = 0;
1564
1565 nt_username = pdb_get_nt_username(sampass);
1566 if (nt_username)
1567 nt_username_len = strlen(nt_username) +1;
1568 else
1569 nt_username_len = 0;
1570
1571 fullname = pdb_get_fullname(sampass);
1572 if (fullname)
1573 fullname_len = strlen(fullname) +1;
1574 else
1575 fullname_len = 0;
1576
1577 /*
1578 * Only updates fields which have been set (not defaults from smb.conf)
1579 */
1580
1581 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE))
1582 dir_drive = pdb_get_dir_drive(sampass);
1583 else
1584 dir_drive = NULL;
1585 if (dir_drive)
1586 dir_drive_len = strlen(dir_drive) +1;
1587 else
1588 dir_drive_len = 0;
1589
1590 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME))
1591 homedir = pdb_get_homedir(sampass);
1592 else
1593 homedir = NULL;
1594 if (homedir)
1595 homedir_len = strlen(homedir) +1;
1596 else
1597 homedir_len = 0;
1598
1599 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT))
1600 logon_script = pdb_get_logon_script(sampass);
1601 else
1602 logon_script = NULL;
1603 if (logon_script)
1604 logon_script_len = strlen(logon_script) +1;
1605 else
1606 logon_script_len = 0;
1607
1608 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE))
1609 profile_path = pdb_get_profile_path(sampass);
1610 else
1611 profile_path = NULL;
1612 if (profile_path)
1613 profile_path_len = strlen(profile_path) +1;
1614 else
1615 profile_path_len = 0;
1616
1617 lm_pw = pdb_get_lanman_passwd(sampass);
1618 if (!lm_pw)
1619 lm_pw_len = 0;
1620
1621 nt_pw = pdb_get_nt_passwd(sampass);
1622 if (!nt_pw)
1623 nt_pw_len = 0;
1624
1625 acct_desc = pdb_get_acct_desc(sampass);
1626 if (acct_desc)
1627 acct_desc_len = strlen(acct_desc) +1;
1628 else
1629 acct_desc_len = 0;
1630
1631 workstations = pdb_get_workstations(sampass);
1632 if (workstations)
1633 workstations_len = strlen(workstations) +1;
1634 else
1635 workstations_len = 0;
1636
1637 unknown_str = NULL;
1638 unknown_str_len = 0;
1639
1640 munged_dial = pdb_get_munged_dial(sampass);
1641 if (munged_dial)
1642 munged_dial_len = strlen(munged_dial) +1;
1643 else
1644 munged_dial_len = 0;
1645
1646 /* one time to get the size needed */
1647 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V0,
1648 logon_time,
1649 logoff_time,
1650 kickoff_time,
1651 pass_last_set_time,
1652 pass_can_change_time,
1653 pass_must_change_time,
1654 username_len, username,
1655 domain_len, domain,
1656 nt_username_len, nt_username,
1657 fullname_len, fullname,
1658 homedir_len, homedir,
1659 dir_drive_len, dir_drive,
1660 logon_script_len, logon_script,
1661 profile_path_len, profile_path,
1662 acct_desc_len, acct_desc,
1663 workstations_len, workstations,
1664 unknown_str_len, unknown_str,
1665 munged_dial_len, munged_dial,
1666 user_rid,
1667 group_rid,
1668 lm_pw_len, lm_pw,
1669 nt_pw_len, nt_pw,
1670 pdb_get_acct_ctrl(sampass),
1671 0, /* was: fileds_present, to be removed on format change */
1672 pdb_get_logon_divs(sampass),
1673 pdb_get_hours_len(sampass),
1674 MAX_HOURS_LEN, pdb_get_hours(sampass),
1675 pdb_get_bad_password_count(sampass),
1676 pdb_get_logon_count(sampass),
1677 pdb_get_unknown_6(sampass));
1678
1679
1680 if (size_only)
1681 return buflen;
1682
1683 /* malloc the space needed */
1684 if ( (*buf=(uint8*)malloc(len)) == NULL) {
1685 DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
1686 return (-1);
1687 }
1688
1689 /* now for the real call to tdb_pack() */
1690 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V0,
1691 logon_time,
1692 logoff_time,
1693 kickoff_time,
1694 pass_last_set_time,
1695 pass_can_change_time,
1696 pass_must_change_time,
1697 username_len, username,
1698 domain_len, domain,
1699 nt_username_len, nt_username,
1700 fullname_len, fullname,
1701 homedir_len, homedir,
1702 dir_drive_len, dir_drive,
1703 logon_script_len, logon_script,
1704 profile_path_len, profile_path,
1705 acct_desc_len, acct_desc,
1706 workstations_len, workstations,
1707 unknown_str_len, unknown_str,
1708 munged_dial_len, munged_dial,
1709 user_rid,
1710 group_rid,
1711 lm_pw_len, lm_pw,
1712 nt_pw_len, nt_pw,
1713 pdb_get_acct_ctrl(sampass),
1714 0, /* was: fileds_present, to be removed on format change */
1715 pdb_get_logon_divs(sampass),
1716 pdb_get_hours_len(sampass),
1717 MAX_HOURS_LEN, pdb_get_hours(sampass),
1718 pdb_get_bad_password_count(sampass),
1719 pdb_get_logon_count(sampass),
1720 pdb_get_unknown_6(sampass));
1721
1722
1723 /* check to make sure we got it correct */
1724 if (buflen != len) {
1725 DEBUG(0, ("init_buffer_from_sam: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
1726 (unsigned long)buflen, (unsigned long)len));
1727 /* error */
1728 SAFE_FREE (*buf);
1729 return (-1);
1730 }
1731
1732 return (buflen);
1733 }
1734
1735
1736 BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
1737 {
1738
1739 /* times are stored as 32bit integer
1740 take care on system with 64bit wide time_t
1741 --SSS */
1742 uint32 logon_time,
1743 logoff_time,
1744 kickoff_time,
1745 bad_password_time,
1746 pass_last_set_time,
1747 pass_can_change_time,
1748 pass_must_change_time;
1749 char *username;
1750 char *domain;
1751 char *nt_username;
1752 char *dir_drive;
1753 char *unknown_str;
1754 char *munged_dial;
1755 char *fullname;
1756 char *homedir;
1757 char *logon_script;
1758 char *profile_path;
1759 char *acct_desc;
1760 char *workstations;
1761 uint32 username_len, domain_len, nt_username_len,
1762 dir_drive_len, unknown_str_len, munged_dial_len,
1763 fullname_len, homedir_len, logon_script_len,
1764 profile_path_len, acct_desc_len, workstations_len;
1765
1766 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
1767 uint16 acct_ctrl, logon_divs;
1768 uint16 bad_password_count, logon_count;
1769 uint8 *hours;
1770 static uint8 *lm_pw_ptr, *nt_pw_ptr;
1771 uint32 len = 0;
1772 uint32 lm_pw_len, nt_pw_len, hourslen;
1773 BOOL ret = True;
1774
1775 if(sampass == NULL || buf == NULL) {
1776 DEBUG(0, ("init_sam_from_buffer: NULL parameters found!\n"));
1777 return False;
1778 }
1779
1780 /* unpack the buffer into variables */
1781 len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
1782 &logon_time,
1783 &logoff_time,
1784 &kickoff_time,
1785 &bad_password_time,
1786 &pass_last_set_time,
1787 &pass_can_change_time,
1788 &pass_must_change_time,
1789 &username_len, &username,
1790 &domain_len, &domain,
1791 &nt_username_len, &nt_username,
1792 &fullname_len, &fullname,
1793 &homedir_len, &homedir,
1794 &dir_drive_len, &dir_drive,
1795 &logon_script_len, &logon_script,
1796 &profile_path_len, &profile_path,
1797 &acct_desc_len, &acct_desc,
1798 &workstations_len, &workstations,
1799 &unknown_str_len, &unknown_str,
1800 &munged_dial_len, &munged_dial,
1801 &user_rid,
1802 &group_rid,
1803 &lm_pw_len, &lm_pw_ptr,
1804 &nt_pw_len, &nt_pw_ptr,
1805 &acct_ctrl,
1806 &remove_me,
1807 &logon_divs,
1808 &hours_len,
1809 &hourslen, &hours,
1810 &bad_password_count,
1811 &logon_count,
1812 &unknown_6);
1813
1814 if (len == (uint32) -1) {
1815 ret = False;
1816 goto done;
1817 }
1818
1819 pdb_set_logon_time(sampass, logon_time, PDB_SET);
1820 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
1821 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
1822 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1823 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
1824 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
1825 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
1826
1827 pdb_set_username(sampass, username, PDB_SET);
1828 pdb_set_domain(sampass, domain, PDB_SET);
1829 pdb_set_nt_username(sampass, nt_username, PDB_SET);
1830 pdb_set_fullname(sampass, fullname, PDB_SET);
1831
1832 if (homedir) {
1833 pdb_set_homedir(sampass, homedir, PDB_SET);
1834 }
1835 else {
1836 pdb_set_homedir(sampass,
1837 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
1838 PDB_DEFAULT);
1839 }
1840
1841 if (dir_drive)
1842 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
1843 else {
1844 pdb_set_dir_drive(sampass,
1845 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
1846 PDB_DEFAULT);
1847 }
1848
1849 if (logon_script)
1850 pdb_set_logon_script(sampass, logon_script, PDB_SET);
1851 else {
1852 pdb_set_logon_script(sampass,
1853 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
1854 PDB_DEFAULT);
1855 }
1856
1857 if (profile_path) {
1858 pdb_set_profile_path(sampass, profile_path, PDB_SET);
1859 } else {
1860 pdb_set_profile_path(sampass,
1861 talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
1862 PDB_DEFAULT);
1863 }
1864
1865 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
1866 pdb_set_workstations(sampass, workstations, PDB_SET);
1867 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
1868
1869 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
1870 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
1871 ret = False;
1872 goto done;
1873 }
1874 }
1875
1876 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
1877 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
1878 ret = False;
1879 goto done;
1880 }
1881 }
1882
1883 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1884 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
1885 pdb_set_hours_len(sampass, hours_len, PDB_SET);
1886 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1887 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1888 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1889 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1890 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1891 pdb_set_hours(sampass, hours, PDB_SET);
1892
1893 done:
1894
1895 SAFE_FREE(username);
1896 SAFE_FREE(domain);
1897 SAFE_FREE(nt_username);
1898 SAFE_FREE(fullname);
1899 SAFE_FREE(homedir);
1900 SAFE_FREE(dir_drive);
1901 SAFE_FREE(logon_script);
1902 SAFE_FREE(profile_path);
1903 SAFE_FREE(acct_desc);
1904 SAFE_FREE(workstations);
1905 SAFE_FREE(munged_dial);
1906 SAFE_FREE(unknown_str);
1907 SAFE_FREE(hours);
1908
1909 return ret;
1910 }
1911
1912
1913 uint32 init_buffer_from_sam_v1 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
1914 {
1915 size_t len, buflen;
1916
1917 /* times are stored as 32bit integer
1918 take care on system with 64bit wide time_t
1919 --SSS */
1920 uint32 logon_time,
1921 logoff_time,
1922 kickoff_time,
1923 bad_password_time,
1924 pass_last_set_time,
1925 pass_can_change_time,
1926 pass_must_change_time;
1927
1928 uint32 user_rid, group_rid;
1929
1930 const char *username;
1931 const char *domain;
1932 const char *nt_username;
1933 const char *dir_drive;
1934 const char *unknown_str;
1935 const char *munged_dial;
1936 const char *fullname;
1937 const char *homedir;
1938 const char *logon_script;
1939 const char *profile_path;
1940 const char *acct_desc;
1941 const char *workstations;
1942 uint32 username_len, domain_len, nt_username_len,
1943 dir_drive_len, unknown_str_len, munged_dial_len,
1944 fullname_len, homedir_len, logon_script_len,
1945 profile_path_len, acct_desc_len, workstations_len;
1946
1947 const uint8 *lm_pw;
1948 const uint8 *nt_pw;
1949 uint32 lm_pw_len = 16;
1950 uint32 nt_pw_len = 16;
1951
1952 /* do we have a valid SAM_ACCOUNT pointer? */
1953 if (sampass == NULL) {
1954 DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
1955 return -1;
1956 }
1957
1958 *buf = NULL;
1959 buflen = 0;
1960
1961 logon_time = (uint32)pdb_get_logon_time(sampass);
1962 logoff_time = (uint32)pdb_get_logoff_time(sampass);
1963 kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
1964 bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
1965 pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
1966 pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
1967 pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
1968
1969 user_rid = pdb_get_user_rid(sampass);
1970 group_rid = pdb_get_group_rid(sampass);
1971
1972 username = pdb_get_username(sampass);
1973 if (username)
1974 username_len = strlen(username) +1;
1975 else
1976 username_len = 0;
1977
1978 domain = pdb_get_domain(sampass);
1979 if (domain)
1980 domain_len = strlen(domain) +1;
1981 else
1982 domain_len = 0;
1983
1984 nt_username = pdb_get_nt_username(sampass);
1985 if (nt_username)
1986 nt_username_len = strlen(nt_username) +1;
1987 else
1988 nt_username_len = 0;
1989
1990 fullname = pdb_get_fullname(sampass);
1991 if (fullname)
1992 fullname_len = strlen(fullname) +1;
1993 else
1994 fullname_len = 0;
1995
1996 /*
1997 * Only updates fields which have been set (not defaults from smb.conf)
1998 */
1999
2000 if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE))
2001 dir_drive = pdb_get_dir_drive(sampass);
2002 else
2003 dir_drive = NULL;
2004 if (dir_drive)
2005 dir_drive_len = strlen(dir_drive) +1;
2006 else
2007 dir_drive_len = 0;
2008
2009 if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME))
2010 homedir = pdb_get_homedir(sampass);
2011 else
2012 homedir = NULL;
2013 if (homedir)
2014 homedir_len = strlen(homedir) +1;
2015 else
2016 homedir_len = 0;
2017
2018 if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT))
2019 logon_script = pdb_get_logon_script(sampass);
2020 else
2021 logon_script = NULL;
2022 if (logon_script)
2023 logon_script_len = strlen(logon_script) +1;
2024 else
2025 logon_script_len = 0;
2026
2027 if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE))
2028 profile_path = pdb_get_profile_path(sampass);
2029 else
2030 profile_path = NULL;
2031 if (profile_path)
2032 profile_path_len = strlen(profile_path) +1;
2033 else
2034 profile_path_len = 0;
2035
2036 lm_pw = pdb_get_lanman_passwd(sampass);
2037 if (!lm_pw)
2038 lm_pw_len = 0;
2039
2040 nt_pw = pdb_get_nt_passwd(sampass);
2041 if (!nt_pw)
2042 nt_pw_len = 0;
2043
2044 acct_desc = pdb_get_acct_desc(sampass);
2045 if (acct_desc)
2046 acct_desc_len = strlen(acct_desc) +1;
2047 else
2048 acct_desc_len = 0;
2049
2050 workstations = pdb_get_workstations(sampass);
2051 if (workstations)
2052 workstations_len = strlen(workstations) +1;
2053 else
2054 workstations_len = 0;
2055
2056 unknown_str = NULL;
2057 unknown_str_len = 0;
2058
2059 munged_dial = pdb_get_munged_dial(sampass);
2060 if (munged_dial)
2061 munged_dial_len = strlen(munged_dial) +1;
2062 else
2063 munged_dial_len = 0;
2064
2065 /* one time to get the size needed */
2066 len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V1,
2067 logon_time,
2068 logoff_time,
2069 kickoff_time,
2070 bad_password_time,
2071 pass_last_set_time,
2072 pass_can_change_time,
2073 pass_must_change_time,
2074 username_len, username,
2075 domain_len, domain,
2076 nt_username_len, nt_username,
2077 fullname_len, fullname,
2078 homedir_len, homedir,
2079 dir_drive_len, dir_drive,
2080 logon_script_len, logon_script,
2081 profile_path_len, profile_path,
2082 acct_desc_len, acct_desc,
2083 workstations_len, workstations,
2084 unknown_str_len, unknown_str,
2085 munged_dial_len, munged_dial,
2086 user_rid,
2087 group_rid,
2088 lm_pw_len, lm_pw,
2089 nt_pw_len, nt_pw,
2090 pdb_get_acct_ctrl(sampass),
2091 0,
2092 pdb_get_logon_divs(sampass),
2093 pdb_get_hours_len(sampass),
2094 MAX_HOURS_LEN, pdb_get_hours(sampass),
2095 pdb_get_bad_password_count(sampass),
2096 pdb_get_logon_count(sampass),
2097 pdb_get_unknown_6(sampass));
2098
2099
2100 if (size_only)
2101 return buflen;
2102
2103 /* malloc the space needed */
2104 if ( (*buf=(uint8*)malloc(len)) == NULL) {
2105 DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
2106 return (-1);
2107 }
2108
2109 /* now for the real call to tdb_pack() */
2110 buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V1,
2111 logon_time,
2112 logoff_time,
2113 kickoff_time,
2114 bad_password_time,
2115 pass_last_set_time,
2116 pass_can_change_time,
2117 pass_must_change_time,
2118 username_len, username,
2119 domain_len, domain,
2120 nt_username_len, nt_username,
2121 fullname_len, fullname,
2122 homedir_len, homedir,
2123 dir_drive_len, dir_drive,
2124 logon_script_len, logon_script,
2125 profile_path_len, profile_path,
2126 acct_desc_len, acct_desc,
2127 workstations_len, workstations,
2128 unknown_str_len, unknown_str,
2129 munged_dial_len, munged_dial,
2130 user_rid,
2131 group_rid,
2132 lm_pw_len, lm_pw,
2133 nt_pw_len, nt_pw,
2134 pdb_get_acct_ctrl(sampass),
2135 0,
2136 pdb_get_logon_divs(sampass),
2137 pdb_get_hours_len(sampass),
2138 MAX_HOURS_LEN, pdb_get_hours(sampass),
2139 pdb_get_bad_password_count(sampass),
2140 pdb_get_logon_count(sampass),
2141 pdb_get_unknown_6(sampass));
2142
2143
2144 /* check to make sure we got it correct */
2145 if (buflen != len) {
2146 DEBUG(0, ("init_buffer_from_sam: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
2147 (unsigned long)buflen, (unsigned long)len));
2148 /* error */
2149 SAFE_FREE (*buf);
2150 return (-1);
2151 }
2152
2153 return (buflen);
2154 }
2155
2156
2157 /**********************************************************************
2158 **********************************************************************/
2159
2160 static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
2161 {
2162 uid_t u_low, u_high;
2163 gid_t g_low, g_high;
2164
2165 if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
2166 return False;
2167 }
2168
2169 *low = (u_low < g_low) ? u_low : g_low;
2170 *high = (u_high < g_high) ? u_high : g_high;
2171
2172 return True;
2173 }
2174
2175 /******************************************************************
2176 Get the the non-algorithmic RID range if idmap range are defined
2177 ******************************************************************/
2178
2179 BOOL get_free_rid_range(uint32 *low, uint32 *high)
2180 {
2181 uint32 id_low, id_high;
2182
2183 if (!lp_enable_rid_algorithm()) {
2184 *low = BASE_RID;
2185 *high = (uint32)-1;
2186 }
2187
2188 if (!get_free_ugid_range(&id_low, &id_high)) {
2189 return False;
2190 }
2191
2192 *low = fallback_pdb_uid_to_user_rid(id_low);
2193 if (fallback_pdb_user_rid_to_uid((uint32)-1) < id_high) {
2194 *high = (uint32)-1;
2195 } else {
2196 *high = fallback_pdb_uid_to_user_rid(id_high);
2197 }
2198
2199 return True;
2200 }
2201
2202 /*********************************************************************
2203 Update the bad password count checking the AP_RESET_COUNT_TIME
2204 *********************************************************************/
2205
2206 BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
2207 {
2208 time_t LastBadPassword;
2209 uint16 BadPasswordCount;
2210 uint32 resettime;
2211
2212 if (!sampass) return False;
2213
2214 BadPasswordCount = pdb_get_bad_password_count(sampass);
2215 if (!BadPasswordCount) {
2216 DEBUG(9, ("No bad password attempts.\n"));
2217 return True;
2218 }
2219
2220 if (!account_policy_get(AP_RESET_COUNT_TIME, &resettime)) {
2221 DEBUG(0, ("pdb_update_bad_password_count: account_policy_get failed.\n"));
2222 return False;
2223 }
2224
2225 /* First, check if there is a reset time to compare */
2226 if ((resettime == (uint32) -1) || (resettime == 0)) {
2227 DEBUG(9, ("No reset time, can't reset bad pw count\n"));
2228 return True;
2229 }
2230
2231 LastBadPassword = pdb_get_bad_password_time(sampass);
2232 DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
2233 (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
2234 if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
2235 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2236 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2237 if (updated) *updated = True;
2238 }
2239
2240 return True;
2241 }
2242
2243 /*********************************************************************
2244 Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
2245 *********************************************************************/
2246
2247 BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
2248 {
2249 uint32 duration;
2250 time_t LastBadPassword;
2251
2252 if (!sampass) return False;
2253
2254 if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
2255 DEBUG(9, ("Account not autolocked, no check needed\n"));
2256 return True;
2257 }
2258
2259 if (!account_policy_get(AP_LOCK_ACCOUNT_DURATION, &duration)) {
2260 DEBUG(0, ("pdb_update_autolock_flag: account_policy_get failed.\n"));
2261 return False;
2262 }
2263
2264 /* First, check if there is a duration to compare */
2265 if ((duration == (uint32) -1) || (duration == 0)) {
2266 DEBUG(9, ("No reset duration, can't reset autolock\n"));
2267 return True;
2268 }
2269
2270 LastBadPassword = pdb_get_bad_password_time(sampass);
2271 DEBUG(7, ("LastBadPassword=%d, duration=%d, current time =%d.\n",
2272 (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
2273 if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
2274 pdb_set_acct_ctrl(sampass,
2275 pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
2276 PDB_CHANGED);
2277 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
2278 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
2279 if (updated) *updated = True;
2280 }
2281
2282 return True;
2283 }
2284
2285 /*********************************************************************
2286 Increment the bad_password_count
2287 *********************************************************************/
2288
2289 BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
2290 {
2291 uint32 account_policy_lockout;
2292 BOOL autolock_updated = False, badpw_updated = False;
2293
2294 if (!sampass)
2295 return False;
2296
2297 /* Retrieve the account lockout policy */
2298 if (!account_policy_get(AP_BAD_ATTEMPT_LOCKOUT,
2299 &account_policy_lockout)) {
2300 DEBUG(0, ("pdb_increment_bad_password_count: account_policy_get failed.\n"));
2301 return False;
2302 }
2303
2304 /* If there is no policy, we don't need to continue checking */
2305 if (!account_policy_lockout) {
2306 DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
2307 return True;
2308 }
2309
2310 /* Check if the autolock needs to be cleared */
2311 if (!pdb_update_autolock_flag(sampass, &autolock_updated))
2312 return False;
2313
2314 /* Check if the badpw count needs to be reset */
2315 if (!pdb_update_bad_password_count(sampass, &badpw_updated))
2316 return False;
2317
2318 /*
2319 Ok, now we can assume that any resetting that needs to be
2320 done has been done, and just get on with incrementing
2321 and autolocking if necessary
2322 */
2323
2324 pdb_set_bad_password_count(sampass,
2325 pdb_get_bad_password_count(sampass)+1,
2326 PDB_CHANGED);
2327 pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
2328
2329
2330 if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
2331 return True;
2332
2333 if (!pdb_set_acct_ctrl(sampass,
2334 pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
2335 PDB_CHANGED)) {
2336 DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
2337 return False;
2338 }
2339
2340 return True;
2341 }
reg import